* [PATCH v4 05/13] C-SKY: Linux Syscall Interface
[not found] ` <cover.1536720821.git.han_mao@c-sky.com>
@ 2018-09-12 2:56 ` Mao Han
2018-09-12 2:56 ` [PATCH v4 01/13] C-SKY: ABI related code Mao Han
` (11 subsequent siblings)
12 siblings, 0 replies; 57+ messages in thread
From: Mao Han @ 2018-09-12 2:56 UTC (permalink / raw)
To: libc-alpha; +Cc: Mao Han, c-sky_gcc_upstream, gnu-csky
Contains the Linux system call interface.
* sysdeps/unix/sysv/linux/csky/abiv2/____longjmp_chk.S: New file.
* sysdeps/unix/sysv/linux/csky/abiv2/clone.S: Likewise.
* sysdeps/unix/sysv/linux/csky/abiv2/getcontext.S: Likewise.
* sysdeps/unix/sysv/linux/csky/abiv2/setcontext.S: Likewise.
* sysdeps/unix/sysv/linux/csky/abiv2/swapcontext.S: Likewise.
* sysdeps/unix/sysv/linux/csky/abiv2/syscall.S: Likewise.
* sysdeps/unix/sysv/linux/csky/abiv2/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/csky/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/csky/pt-vfork.S: Likewise.
---
.../unix/sysv/linux/csky/abiv2/____longjmp_chk.S | 81 ++++++++++++++++++
sysdeps/unix/sysv/linux/csky/abiv2/clone.S | 94 +++++++++++++++++++++
sysdeps/unix/sysv/linux/csky/abiv2/getcontext.S | 73 ++++++++++++++++
sysdeps/unix/sysv/linux/csky/abiv2/setcontext.S | 96 ++++++++++++++++++++++
sysdeps/unix/sysv/linux/csky/abiv2/swapcontext.S | 78 ++++++++++++++++++
sysdeps/unix/sysv/linux/csky/abiv2/syscall.S | 67 +++++++++++++++
sysdeps/unix/sysv/linux/csky/abiv2/sysdep.S | 65 +++++++++++++++
sysdeps/unix/sysv/linux/csky/pt-vfork.S | 1 +
sysdeps/unix/sysv/linux/csky/syscalls.list | 2 +
9 files changed, 557 insertions(+)
create mode 100644 sysdeps/unix/sysv/linux/csky/abiv2/____longjmp_chk.S
create mode 100644 sysdeps/unix/sysv/linux/csky/abiv2/clone.S
create mode 100644 sysdeps/unix/sysv/linux/csky/abiv2/getcontext.S
create mode 100644 sysdeps/unix/sysv/linux/csky/abiv2/setcontext.S
create mode 100644 sysdeps/unix/sysv/linux/csky/abiv2/swapcontext.S
create mode 100644 sysdeps/unix/sysv/linux/csky/abiv2/syscall.S
create mode 100644 sysdeps/unix/sysv/linux/csky/abiv2/sysdep.S
create mode 100644 sysdeps/unix/sysv/linux/csky/pt-vfork.S
create mode 100644 sysdeps/unix/sysv/linux/csky/syscalls.list
diff --git a/sysdeps/unix/sysv/linux/csky/abiv2/____longjmp_chk.S b/sysdeps/unix/sysv/linux/csky/abiv2/____longjmp_chk.S
new file mode 100644
index 0000000..88cb310
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/____longjmp_chk.S
@@ -0,0 +1,81 @@
+/* longjmp with sp check for C-SKY ABIV2.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+ .section .rodata.str1.8,"aMS",@progbits,1
+ .align 2
+ .type longjmp_msg,@object
+longjmp_msg:
+ .string "longjmp causes uninitialized stack frame"
+ .size longjmp_msg, .-longjmp_msg
+
+ .text
+#define __longjmp ____longjmp_chk
+
+#ifdef __PIC__
+# define CALL_FAIL \
+ subi sp, 8; \
+ stw gb, (sp, 0); \
+ grs gb, .Lgetpc1; \
+.Lgetpc1: \
+ lrw t0, .Lgetpc1@GOTPC; \
+ addu gb, gb, t0; \
+ lrw a0, longjmp_msg@GOTOFF; \
+ addu a0, a0, gb; \
+ lrw t0, (HIDDEN_JUMPTARGET (__fortify_fail))@PLT; \
+ ldr.w t0, (gb, t0 << 0); \
+ jsr t0; \
+ ldw gb, (sp, 0); \
+ addi sp, 8;
+#else /* __PIC__ */
+# define CALL_FAIL \
+ lrw a0, longjmp_msg; \
+ jsri HIDDEN_JUMPTARGET (__fortify_fail);
+#endif /* __PIC__ */
+
+# define CHECK_SP(reg) \
+ cmplt sp, reg; \
+ bt .Lok1; \
+ mov r9, a0; \
+ mov t0, r7; \
+ lrw r7, __NR_sigaltstack; \
+ movi a0, 0; \
+ subi sp, 12; /* sizeof (stack_t) */ \
+ mov a1, sp; \
+ trap 0; \
+ mov r7, t0; \
+ cmpnei a0, 0; \
+ bt .Lok; \
+ ldw a1, (sp, 4); \
+ btsti a1, 1; \
+ bt .Lfail; \
+ ldw a1, (sp, 0); \
+ ldw a3, (sp, 8); \
+ add a1, a3; \
+ sub a1, reg; \
+ cmphs a1, a3; \
+ bt .Lok; \
+.Lfail: \
+ addi sp, 12; \
+ CALL_FAIL \
+.Lok: \
+ mov a0, r9; \
+.Lok1:
+
+#include <__longjmp.S>
diff --git a/sysdeps/unix/sysv/linux/csky/abiv2/clone.S b/sysdeps/unix/sysv/linux/csky/abiv2/clone.S
new file mode 100644
index 0000000..f83b396
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/clone.S
@@ -0,0 +1,94 @@
+/* Wrapper around clone system call. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* clone() is even more special than fork() as it mucks with stacks
+ and invokes a function in the right context after its all over. */
+
+#include <sysdep.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+
+/* int clone (int (*fn) (void *arg), void *child_stack, int flags, void *arg,
+ pid_t *ptid, struct user_desc *tls, pid_t *ctid); */
+
+ .text
+ENTRY (__clone)
+ /* Sanity check arguments. */
+ cmpnei a0, 0 /* no NULL function pointers */
+ bf __error_arg
+ cmpnei a1, 0 /* no NULL stack pointers */
+ bf __error_arg
+
+ subi a1, 8
+ stw a0, (a1, 0) /* insert the function into the new stack */
+ stw a3, (a1, 4) /* insert the args into the new stack */
+
+ mov t1, r7 /* save r7 */
+ mov t2, r4 /* save r4 */
+
+ mov a0, a2 /* arg1 = flags */
+ ldw a2, (sp, 0) /* arg3 = ptid */
+ ldw a3, (sp, 8) /* arg4 = ctid */
+ ldw r4, (sp, 4) /* arg5 = tls */
+ lrw r7, __NR_clone
+ trap 0
+
+ mov r7, t1 /* restore r7 */
+ mov r4, t2 /* restore r4 */
+ btsti a0, 31 /* is a0 less than zero? */
+ bt __do_syscall_error
+ cmpnei a0, 0
+ bf __child
+ rts
+
+__error_arg:
+ lrw a0, -EINVAL
+
+__do_syscall_error:
+#ifdef __PIC__
+ subi sp, 8
+ stw gb, (sp, 0)
+ stw r15, (sp, 4)
+ grs gb, .Lgetpc
+.Lgetpc:
+ lrw t0, .Lgetpc@GOTPC
+ addu gb, gb, t0
+ lrw t0, __syscall_error@PLT
+ ldr.w t0, (gb, t0 << 0)
+ jsr t0
+ ldw gb, (sp, 0)
+ ldw r15, (sp, 4)
+ addi sp, 8
+#else
+ jmpi __syscall_error
+#endif /* __PIC__ */
+ rts
+PSEUDO_END (__clone)
+
+__child:
+ ldw a0, (sp, 4) /* restore args from new sp */
+ ldw a1, (sp, 0) /* restore function from new sp */
+ addi sp, 8
+ jsr a1
+
+ /* exit */
+ lrw r7, __NR_exit
+ trap 0
+
+libc_hidden_def (__clone)
+weak_alias (__clone, clone)
diff --git a/sysdeps/unix/sysv/linux/csky/abiv2/getcontext.S b/sysdeps/unix/sysv/linux/csky/abiv2/getcontext.S
new file mode 100644
index 0000000..4f77413
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/getcontext.S
@@ -0,0 +1,73 @@
+/* Save current context. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+#include "ucontext_i.h"
+
+/* int getcontext (ucontext_t *ucp) */
+
+ENTRY (__getcontext)
+ /* No need to save r2-r7 or a0-a3. */
+ mov t0, a0
+
+ addi a0, MCONTEXT_CSKY_R4
+
+ stm r4-r13, (a0) /* save r4-r13 */
+ stw sp, (t0, MCONTEXT_CSKY_SP) /* save sp */
+ stw r15, (t0, MCONTEXT_CSKY_LR) /* save lr */
+ stw r15, (t0, MCONTEXT_CSKY_PC) /* return to PC */
+ addi a0, t0, MCONTEXT_CSKY_R16
+ stm r16-r31, (a0) /* save r16-r31 */
+ movi a0, 0
+ stw a0, (t0, MCONTEXT_CSKY_A0) /* return zero */
+
+ subi sp, 8
+ stw t0, (sp, 0) /* save t0 after "save sp" */
+
+ /* __sigprocmask (SIG_BLOCK, NULL, &(ucontext->uc_sigmask)) */
+ movi a0, SIG_BLOCK
+ movi a1, 0
+ addi a2, t0, UCONTEXT_SIGMASK
+
+ /* do sigprocmask syscall */
+#ifdef __PIC__
+ subi sp, 8
+ stw gb, (sp, 0)
+ grs gb, .Lgetpc
+.Lgetpc:
+ lrw a3, .Lgetpc@GOTPC
+ addu gb, gb, a3
+ lrw a3, __sigprocmask@PLT
+ ldr.w a3, (gb, a3 << 0)
+ jsr a3
+ ldw gb, (sp, 0)
+ addi sp, 8
+#else
+ jsri __sigprocmask
+#endif
+
+ ldw t0, (sp, 0)
+ addi sp, 8
+ /* restore r15 for sigprocmask changes */
+ ldw r15, (t0, MCONTEXT_CSKY_LR)
+ movi a0, 0 /* return 0 */
+ jmp r15
+END (__getcontext)
+
+weak_alias (__getcontext, getcontext)
diff --git a/sysdeps/unix/sysv/linux/csky/abiv2/setcontext.S b/sysdeps/unix/sysv/linux/csky/abiv2/setcontext.S
new file mode 100644
index 0000000..1ceb928
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/setcontext.S
@@ -0,0 +1,96 @@
+/* Set saved user context to current context. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+#include "ucontext_i.h"
+
+/* int setcontext (const ucontext_t *ucp) */
+
+ENTRY (__setcontext)
+ mov t0, a0
+ subi sp, 8
+ stw a0, (sp, 0)
+
+ /* set sigmask */
+ movi a0, SIG_SETMASK
+ addi a1, t0, UCONTEXT_SIGMASK
+ movi a2, 0
+
+ /* do sigprocmask syscall */
+#ifdef __PIC__
+ subi sp, 8
+ stw gb, (sp, 0)
+ grs gb, .Lgetpc1
+.Lgetpc1:
+ lrw a3, .Lgetpc1@GOTPC
+ addu gb, gb, a3
+ lrw a3, __sigprocmask@PLT
+ ldr.w a3, (gb, a3 << 0)
+ jsr a3
+ ldw gb, (sp, 0)
+ addi sp, 8
+#else
+ jsri __sigprocmask
+#endif /* __PIC__ */
+
+ ldw t0, (sp, 0)
+ addi sp, 8
+ /* set r0-r11. Load a0-a3, for makecontext requires */
+ addi t1, t0, MCONTEXT_CSKY_A0
+ ldm r0-r11, (t1)
+ ldw sp, (t0, MCONTEXT_CSKY_SP) /* load sp */
+ ldw r15, (t0, MCONTEXT_CSKY_LR) /* load lr */
+ ldw t0, (t0, MCONTEXT_CSKY_PC) /* load start addr */
+ jmp t0
+END (setcontext)
+weak_alias (__setcontext, setcontext)
+
+ENTRY (__startcontext)
+ mov a0, r9
+ cmpnei r9, 0 /* r9 was set in makecontext */
+ bf 1f /* null, then exit */
+
+ /* call setcontext */
+#ifdef __PIC__
+ grs t1, .Lgetpc2
+.Lgetpc2:
+ lrw t0, .Lgetpc2@GOTPC
+ addu t1, t1, t0
+ lrw t0, __setcontext@GOT
+ ldr.w t0, (t1, t0 << 0)
+#else
+ lrw t0, __setcontext
+#endif
+ jsr t0
+
+1:
+ /* call _exit */
+#ifdef __PIC__
+ grs t1, .Lgetpc3
+.Lgetpc3:
+ lrw t0, .Lgetpc3@GOTPC
+ addu t1, t1, t0
+ lrw t0, _exit@GOT
+ ldr.w t0, (t1, t0 << 0)
+#else
+ lrw t0, _exit
+#endif
+ jsr t0
+
+END (__startcontext)
diff --git a/sysdeps/unix/sysv/linux/csky/abiv2/swapcontext.S b/sysdeps/unix/sysv/linux/csky/abiv2/swapcontext.S
new file mode 100644
index 0000000..a1e0144
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/swapcontext.S
@@ -0,0 +1,78 @@
+/* Save and set current context. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+#include "ucontext_i.h"
+
+/* int swapcontext (ucontext_t *oucp, const ucontext_t *ucp) */
+
+ENTRY (swapcontext)
+ /* save params and lr */
+ subi sp, 16
+ stw a0, (sp, 0)
+ stw a1, (sp, 4)
+ stw r15, (sp, 8)
+
+ /* call getcontext */
+#ifdef __PIC__
+ grs t1, .Lgetpc1
+.Lgetpc1:
+ lrw t0, .Lgetpc1@GOTPC
+ addu t1, t1, t0
+ lrw t0, __getcontext@GOT
+ ldr.w t0, (t1, t0 << 0)
+ jsr t0
+#else /* no pic */
+ jsri __getcontext
+#endif
+
+ mov a3, a0 /* save return value */
+
+ /* restore params and lr */
+ ldw a0, (sp, 0)
+ ldw a1, (sp, 4)
+ ldw r15, (sp, 8)
+ addi sp, 16
+
+ cmpnei a3, 0
+ bt error_exit
+
+ /* Fix up LR and the PC */
+ stw sp, (a0, MCONTEXT_CSKY_SP)
+ stw r15, (a0, MCONTEXT_CSKY_LR)
+ stw r15, (a0, MCONTEXT_CSKY_PC)
+
+ /* set setcontext's arg */
+ mov a0, a1
+
+#ifdef __PIC__
+ grs t1, .Lgetpc2
+.Lgetpc2:
+ lrw a3, .Lgetpc2@GOTPC
+ addu t1, t1, a3
+ lrw a3, __setcontext@GOT
+ ldr.w a3, (t1, a3 << 0)
+#else /* __PIC__ */
+ lrw a3, __setcontext
+#endif /* __PIC__ */
+ jmp a3
+
+error_exit:
+ jmp r15
+END (swapcontext)
diff --git a/sysdeps/unix/sysv/linux/csky/abiv2/syscall.S b/sysdeps/unix/sysv/linux/csky/abiv2/syscall.S
new file mode 100644
index 0000000..bdfaef3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/syscall.S
@@ -0,0 +1,67 @@
+/* System call interface. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+/* long syscall(long sysnum, long a, long b, long c, long d, long e, long f) */
+
+ENTRY (syscall)
+ subi sp, 8
+ stw r4, (sp, 0)
+ stw r5, (sp, 4)
+
+ mov t0, r7
+ mov r7, a0 /* r7 = sysnum */
+
+ mov a0, a1 /* arg1 = a */
+ mov a1, a2 /* arg2 = b */
+ mov a2, a3 /* arg3 = c */
+ ldw a3, (sp, 8) /* arg4 = d */
+ ldw r4, (sp, 12) /* arg5 = e */
+ ldw r5, (sp, 16) /* arg6 = f */
+ trap 0
+
+ mov r7, t0
+
+ ldw r4, (sp, 0)
+ ldw r5, (sp, 4)
+ addi sp, 8
+
+ lrw t0, 0xfffff000
+ cmphs a0, t0
+ bf 1f
+#ifdef __PIC__
+ subi sp, 8
+ stw gb, (sp, 0)
+ stw lr, (sp, 4)
+ grs gb, .Lgetpc
+.Lgetpc:
+ lrw t0, .Lgetpc@GOTPC
+ addu gb, gb, t0
+ lrw t0, __syscall_error@PLT
+ ldr.w t0, (gb, t0 << 0)
+ jsr t0
+ ldw gb, (sp, 0)
+ ldw lr, (sp, 4)
+ addi sp, 8
+#else
+ jmpi __syscall_error
+#endif /* __PIC__ */
+1:
+ rts
+PSEUDO_END (syscall)
diff --git a/sysdeps/unix/sysv/linux/csky/abiv2/sysdep.S b/sysdeps/unix/sysv/linux/csky/abiv2/sysdep.S
new file mode 100644
index 0000000..280c41a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/sysdep.S
@@ -0,0 +1,65 @@
+/* syscall error handlers. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+/* The syscall stubs jump here when they detect an error.
+ The code for Linux is almost identical to the canonical Unix
+ code, except that the error number in R0 is negated. */
+
+#undef CALL_MCOUNT
+#define CALL_MCOUNT /* Don't insert the profiling call, it clobbers R0. */
+
+ .text
+ENTRY (__syscall_error)
+ movi a1, 0
+ rsub a0, a0, a1
+
+#if !IS_IN (rtld)
+ mov a1, a0
+ mov a0, tls
+
+ grs t1, .Lgetpc1
+.Lgetpc1:
+ lrw t0, errno@gottpoff
+ add t1, t1, t0
+ ldw t1, (t1)
+ add t1, a0
+ stw a1, (t1)
+ bmaski a0, 0
+ rts
+#elif RTLD_PRIVATE_ERRNO /* !IS_IN (rtld) */
+# ifdef __PIC__
+ grs t1, .Lgetpc2
+.Lgetpc2:
+ lrw t0, .Lgetpc2@GOTPC
+ addu t1, t1, t0
+ lrw t0, rtld_errno@PLT
+ ldr.w t0, (t1, t0 << 0)
+# else
+ lrw t0, rtld_errno
+# endif /* __PIC__ */
+ stw a0, (t0)
+ bmaski a0, 0
+ rts
+#else
+# error "Unsupported non-TLS case"
+#endif /* RTLD_PRIVATE_ERRNO */
+
+#undef __syscall_error
+END (__syscall_error)
diff --git a/sysdeps/unix/sysv/linux/csky/pt-vfork.S b/sysdeps/unix/sysv/linux/csky/pt-vfork.S
new file mode 100644
index 0000000..1cc8931
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/pt-vfork.S
@@ -0,0 +1 @@
+/* Not needed. */
diff --git a/sysdeps/unix/sysv/linux/csky/syscalls.list b/sysdeps/unix/sysv/linux/csky/syscalls.list
new file mode 100644
index 0000000..2a8feb1
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/syscalls.list
@@ -0,0 +1,2 @@
+# File name Caller Syscall name Args Strong name Weak names
+cacheflush - cacheflush i:pii _flush_cache cacheflush
--
2.7.4
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v4 01/13] C-SKY: ABI related code
[not found] ` <cover.1536720821.git.han_mao@c-sky.com>
2018-09-12 2:56 ` [PATCH v4 05/13] C-SKY: Linux Syscall Interface Mao Han
@ 2018-09-12 2:56 ` Mao Han
2018-09-12 4:16 ` H.J. Lu
2018-09-17 21:46 ` Joseph Myers
2018-09-12 2:56 ` [PATCH v4 03/13] C-SKY: Math support Mao Han
` (10 subsequent siblings)
12 siblings, 2 replies; 57+ messages in thread
From: Mao Han @ 2018-09-12 2:56 UTC (permalink / raw)
To: libc-alpha; +Cc: Mao Han, c-sky_gcc_upstream, gnu-csky
Codes in this patch contains lots of C-SKY ABI related code. They are
written accroding to the registers assgnments, relocations, assemblly
described in C-SKY CPU ABI Standards and C-SKY architercure user guide.
Available from: https://github.com/c-sky/csky-doc
This does not contain any linux related code.
* sysdeps/csky/abiv2/__longjmp.S: New file.
* sysdeps/csky/abiv2/crti.S: Likewise.
* sysdeps/csky/abiv2/crtn.S: Likewise.
* sysdeps/csky/abiv2/csky-mcount.S: Likewise.
* sysdeps/csky/abiv2/dl-trampoline.S: Likewise.
* sysdeps/csky/abiv2/memcmp.S: Likewise.
* sysdeps/csky/abiv2/memcpy.S: Likewise.
* sysdeps/csky/abiv2/memmove.S: Likewise.
* sysdeps/csky/abiv2/memset.S: Likewise.
* sysdeps/csky/abiv2/setjmp.S: Likewise.
* sysdeps/csky/abiv2/start.S: Likewise.
* sysdeps/csky/abiv2/strcmp.S: Likewise.
* sysdeps/csky/abiv2/strcpy.S: Likewise.
* sysdeps/csky/abiv2/strlen.S: Likewise.
* sysdeps/csky/abort-instr.h: Likewise.
* sysdeps/csky/bits/endian.h: Likewise.
* sysdeps/csky/bits/link.h: Likewise.
* sysdeps/csky/bits/setjmp.h: Likewise.
* sysdeps/csky/bsd-_setjmp.S: Likewise.
* sysdeps/csky/bsd-setjmp.S: Likewise.
* sysdeps/csky/gccframe.h: Likewise.
* sysdeps/csky/jmpbuf-unwind.h: Likewise.
* sysdeps/csky/machine-gmon.h: Likewise.
* sysdeps/csky/memusage.h: Likewise.
* sysdeps/csky/stackinfo.h: Likewise.
* sysdeps/csky/sysdep.h: Likewise.
---
sysdeps/csky/abiv2/__longjmp.S | 61 ++++++++++
sysdeps/csky/abiv2/crti.S | 99 ++++++++++++++++
sysdeps/csky/abiv2/crtn.S | 50 +++++++++
sysdeps/csky/abiv2/csky-mcount.S | 72 ++++++++++++
sysdeps/csky/abiv2/dl-trampoline.S | 50 +++++++++
sysdeps/csky/abiv2/memcmp.S | 142 +++++++++++++++++++++++
sysdeps/csky/abiv2/memcpy.S | 224 +++++++++++++++++++++++++++++++++++++
sysdeps/csky/abiv2/memmove.S | 1 +
sysdeps/csky/abiv2/memset.S | 98 ++++++++++++++++
sysdeps/csky/abiv2/setjmp.S | 77 +++++++++++++
sysdeps/csky/abiv2/start.S | 109 ++++++++++++++++++
sysdeps/csky/abiv2/strcmp.S | 156 ++++++++++++++++++++++++++
sysdeps/csky/abiv2/strcpy.S | 127 +++++++++++++++++++++
sysdeps/csky/abiv2/strlen.S | 102 +++++++++++++++++
sysdeps/csky/abort-instr.h | 2 +
sysdeps/csky/bits/endian.h | 6 +
sysdeps/csky/bits/link.h | 55 +++++++++
sysdeps/csky/bits/setjmp.h | 34 ++++++
sysdeps/csky/bsd-_setjmp.S | 1 +
sysdeps/csky/bsd-setjmp.S | 1 +
sysdeps/csky/gccframe.h | 21 ++++
sysdeps/csky/jmpbuf-unwind.h | 48 ++++++++
sysdeps/csky/machine-gmon.h | 32 ++++++
sysdeps/csky/memusage.h | 21 ++++
sysdeps/csky/stackinfo.h | 29 +++++
sysdeps/csky/sysdep.h | 88 +++++++++++++++
26 files changed, 1706 insertions(+)
create mode 100644 sysdeps/csky/abiv2/__longjmp.S
create mode 100644 sysdeps/csky/abiv2/crti.S
create mode 100644 sysdeps/csky/abiv2/crtn.S
create mode 100644 sysdeps/csky/abiv2/csky-mcount.S
create mode 100644 sysdeps/csky/abiv2/dl-trampoline.S
create mode 100644 sysdeps/csky/abiv2/memcmp.S
create mode 100644 sysdeps/csky/abiv2/memcpy.S
create mode 100644 sysdeps/csky/abiv2/memmove.S
create mode 100644 sysdeps/csky/abiv2/memset.S
create mode 100644 sysdeps/csky/abiv2/setjmp.S
create mode 100644 sysdeps/csky/abiv2/start.S
create mode 100644 sysdeps/csky/abiv2/strcmp.S
create mode 100644 sysdeps/csky/abiv2/strcpy.S
create mode 100644 sysdeps/csky/abiv2/strlen.S
create mode 100644 sysdeps/csky/abort-instr.h
create mode 100644 sysdeps/csky/bits/endian.h
create mode 100644 sysdeps/csky/bits/link.h
create mode 100644 sysdeps/csky/bits/setjmp.h
create mode 100644 sysdeps/csky/bsd-_setjmp.S
create mode 100644 sysdeps/csky/bsd-setjmp.S
create mode 100644 sysdeps/csky/gccframe.h
create mode 100644 sysdeps/csky/jmpbuf-unwind.h
create mode 100644 sysdeps/csky/machine-gmon.h
create mode 100644 sysdeps/csky/memusage.h
create mode 100644 sysdeps/csky/stackinfo.h
create mode 100644 sysdeps/csky/sysdep.h
diff --git a/sysdeps/csky/abiv2/__longjmp.S b/sysdeps/csky/abiv2/__longjmp.S
new file mode 100644
index 0000000..b30245c
--- /dev/null
+++ b/sysdeps/csky/abiv2/__longjmp.S
@@ -0,0 +1,61 @@
+/* longjmp for C-SKY ABIV2.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+ENTRY (__longjmp)
+ mov a2, a0
+ mov a0, a1 /* Get the return value in place. */
+ cmpnei a0, 0
+ bt have_return
+ movi a0, 1 /* Can't let setjmp() return zero! */
+have_return:
+#ifdef CHECK_SP
+ ldw r10, (a2, 0) /* jmpbuf's sp */
+# ifdef PTR_MANGLE
+ PTR_DEMANGLE (r10, r10, a3)
+# endif
+ CHECK_SP (r10)
+#endif
+ ldw sp, (a2, 0)
+ ldw lr, (a2, 4)
+ ldw r4, (a2, 8)
+ ldw r5, (a2, 12)
+ ldw r6, (a2, 16)
+ ldw r7, (a2, 20)
+ ldw r8, (a2, 24)
+ ldw r9, (a2, 28)
+ ldw r10, (a2, 32)
+ ldw r11, (a2, 36)
+ ldw r16, (a2, 40)
+ ldw r17, (a2, 44)
+ ldw r26, (a2, 48)
+ ldw r27, (a2, 52)
+ ldw r28, (a2, 56)
+ ldw r29, (a2, 60)
+ ldw r30, (a2, 64)
+ ldw r31, (a2, 68)
+ addi a2, 72
+
+#ifdef PTR_MANGLE
+ PTR_DEMANGLE (sp, sp, a3)
+ PTR_DEMANGLE2 (lr, lr, a3)
+#endif
+ jmp lr
+
+END (__longjmp)
diff --git a/sysdeps/csky/abiv2/crti.S b/sysdeps/csky/abiv2/crti.S
new file mode 100644
index 0000000..4526a9e
--- /dev/null
+++ b/sysdeps/csky/abiv2/crti.S
@@ -0,0 +1,99 @@
+/* Special .init and .fini section support for C-SKY ABIV2.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ In addition to the permissions in the GNU Lesser General Public
+ License, the Free Software Foundation gives you unlimited
+ permission to link the compiled version of this file with other
+ programs, and to distribute those programs without any restriction
+ coming from the use of this file. (The GNU Lesser General Public
+ License restrictions do apply in other respects; for example, they
+ cover modification of the file, and distribution when not linked
+ into another program.)
+
+ Note that people who make modified versions of this file are not
+ obligated to grant this special exception for their modified
+ versions; it is their choice whether to do so. The GNU Lesser
+ General Public License gives permission to release a modified
+ version without this exception; this exception also makes it
+ possible to release a modified version which carries forward this
+ exception.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* crti.S puts a function prologue at the beginning of the .init and
+ .fini sections and defines global symbols for those addresses, so
+ they can be called as functions. The symbols _init and _fini are
+ magic and cause the linker to emit DT_INIT and DT_FINI. */
+
+#include <libc-symbols.h>
+#include <sysdep.h>
+
+#ifndef PREINIT_FUNCTION
+# define PREINIT_FUNCTION __gmon_start__
+#endif
+
+#ifndef PREINIT_FUNCTION_WEAK
+# define PREINIT_FUNCTION_WEAK 1
+#endif
+
+#if PREINIT_FUNCTION_WEAK
+ weak_extern (PREINIT_FUNCTION)
+#else
+ .hidden PREINIT_FUNCTION
+#endif
+
+ .section .init,"ax",@progbits
+ .align 4
+ .globl _init
+ .hidden _init
+ .type _init, @function
+_init:
+ subi sp, 8
+ stw lr, (sp, 0)
+ stw gb, (sp, 4)
+ grs t0, .Lgetpc
+.Lgetpc:
+ lrw gb, .Lgetpc@GOTPC
+ add gb, t0
+#if PREINIT_FUNCTION_WEAK
+ lrw a2, PREINIT_FUNCTION@GOT
+ ldr.w a2, (gb, a2 << 0)
+ cmpnei a2, 0
+ bf 1f
+ jsr a2
+1:
+#else
+ lrw a2, PREINIT_FUNCTION@GOT
+ ldr.w a2, (gb, a2 << 0)
+ jsr a2
+#endif /* PREINIT_FUNCTION_WEAK */
+ br 2f
+ .literals
+ .align 4
+2:
+
+ .section .fini,"ax",@progbits
+ .align 4
+ .globl _fini
+ .hidden _fini
+ .type _fini, @function
+_fini:
+ subi sp, 4
+ stw lr, (sp, 0)
+ br 2f
+ .literals
+ .align 4
+2:
diff --git a/sysdeps/csky/abiv2/crtn.S b/sysdeps/csky/abiv2/crtn.S
new file mode 100644
index 0000000..9c7ecbf
--- /dev/null
+++ b/sysdeps/csky/abiv2/crtn.S
@@ -0,0 +1,50 @@
+/* Special .init and .fini section support for C-SKY ABIV2.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ In addition to the permissions in the GNU Lesser General Public
+ License, the Free Software Foundation gives you unlimited
+ permission to link the compiled version of this file with other
+ programs, and to distribute those programs without any restriction
+ coming from the use of this file. (The GNU Lesser General Public
+ License restrictions do apply in other respects; for example, they
+ cover modification of the file, and distribution when not linked
+ into another program.)
+
+ Note that people who make modified versions of this file are not
+ obligated to grant this special exception for their modified
+ versions; it is their choice whether to do so. The GNU Lesser
+ General Public License gives permission to release a modified
+ version without this exception; this exception also makes it
+ possible to release a modified version which carries forward this
+ exception.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+/* crtn.S puts function epilogues in the .init and .fini sections
+ corresponding to the prologues in crti.S. */
+
+ .section .init,"ax",@progbits
+ ldw lr, (sp, 0)
+ ldw gb, (sp, 4)
+ addi sp, 8
+ rts
+
+ .section .fini,"ax",@progbits
+ ldw lr, (sp, 0)
+ addi sp, 4
+ rts
diff --git a/sysdeps/csky/abiv2/csky-mcount.S b/sysdeps/csky/abiv2/csky-mcount.S
new file mode 100644
index 0000000..e77ec4f
--- /dev/null
+++ b/sysdeps/csky/abiv2/csky-mcount.S
@@ -0,0 +1,72 @@
+/* Implementation of profiling support. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+/* Use an assembly stub with a special ABI. The calling lr has been
+ pushed to the stack (which will be misaligned). We should preserve
+ all registers except ip and pop a word off the stack.
+
+ NOTE: This assumes mcount_internal does not clobber any non-core
+ (coprocessor) registers. Currently this is true, but may require
+ additional attention in the future.
+
+ The calling sequence looks something like:
+func:
+ push lr
+ jbsr _mount
+ <function body>
+*/
+
+/* Don't call mcount when calling mcount... */
+#undef PROF
+
+ENTRY (_mcount)
+ subi sp, 20
+ stw a0, (sp, 0)
+ stw a1, (sp, 4)
+ stw a2, (sp, 8)
+ stw a3, (sp, 12)
+ stw lr, (sp, 16)
+ mov a1, lr
+ ldw a0, (sp, 20)
+#ifdef __PIC__
+ grs t1, .Lgetpc
+.Lgetpc:
+ lrw t0, .Lgetpc@GOTPC
+ addu t1, t0
+ lrw t0, __mcount_internal@PLT
+ ldr.w t0, (t1, t0 << 0)
+ jsr t0
+#else
+ jsri __mcount_internal
+#endif /* !__PIC__ */
+ ldw a0, (sp, 0)
+ ldw a1, (sp, 4)
+ ldw a2, (sp, 8)
+ ldw a3, (sp, 12)
+ ldw t1, (sp, 16)
+ ldw lr, (sp, 20)
+ addi sp, 24
+ jmp t1
+END (_mcount)
+
+/* The canonical name for the function is `_mcount' in both C and asm,
+ but some old asm code might assume it's `mcount'. */
+#undef mcount
+weak_alias (_mcount, mcount)
diff --git a/sysdeps/csky/abiv2/dl-trampoline.S b/sysdeps/csky/abiv2/dl-trampoline.S
new file mode 100644
index 0000000..1dbe2e1
--- /dev/null
+++ b/sysdeps/csky/abiv2/dl-trampoline.S
@@ -0,0 +1,50 @@
+/* PLT trampolines. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* This function is not called directly. It is jumped when attempting to
+ use a symbol that has not yet been resolved.
+
+ .plt*:
+ subi r0, 32
+ stw r2, (r0, 0)
+ stw r3, (r0, 4)
+ lrw r3, #offset
+ ldw r2, (gb, 8)
+ jmp r2
+ */
+
+#include <sysdep.h>
+
+ .globl _dl_runtime_resolve;
+ .type _dl_runtime_resolve,@function;
+ .align 4;
+_dl_runtime_resolve:
+ subi sp, 20
+ stm a0-a3, (sp)
+ stw lr, (sp, 16)
+ /* a0 = id, a1 = offset(do it in plt*) */
+ ldw a0, (gb, 4)
+ movi a1, 12
+ mult a1, t1
+ bsr _dl_fixup
+ mov t0, a0
+ ldw lr, (sp, 16)
+ ldm a0-a3, (sp)
+ addi sp, 20
+ jmp t0
+ .size _dl_runtime_resolve,.-_dl_runtime_resolve
diff --git a/sysdeps/csky/abiv2/memcmp.S b/sysdeps/csky/abiv2/memcmp.S
new file mode 100644
index 0000000..d23f7e7
--- /dev/null
+++ b/sysdeps/csky/abiv2/memcmp.S
@@ -0,0 +1,142 @@
+/* The assembly function for memory compare. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+ENTRY (memcmp)
+ /* Test if len less than 4 bytes. */
+ mov r3, r0
+ movi r0, 0
+ mov r12, r4
+ cmplti r2, 4
+ jbt .L_compare_by_byte
+
+ andi r13, r0, 3
+ movi r19, 4
+ /* Test if s1 is not 4 bytes aligned. */
+ bnez r13, .L_s1_not_aligned
+
+ LABLE_ALIGN
+.L_s1_aligned:
+ /* If dest is aligned, then copy. */
+ zext r18, r2, 31, 4
+ /* Test if len less than 16 bytes. */
+ bez r18, .L_compare_by_word
+
+.L_compare_by_4word:
+ /* If aligned, load word each time. */
+ ldw r20, (r3, 0)
+ ldw r21, (r1, 0)
+ /* If s1[i] != s2[i], goto .L_byte_check. */
+ cmpne r20, r21
+ bt .L_byte_check
+
+ ldw r20, (r3, 4)
+ ldw r21, (r1, 4)
+ cmpne r20, r21
+ bt .L_byte_check
+
+ ldw r20, (r3, 8)
+ ldw r21, (r1, 8)
+ cmpne r20, r21
+ bt .L_byte_check
+
+ ldw r20, (r3, 12)
+ ldw r21, (r1, 12)
+ cmpne r20, r21
+ bt .L_byte_check
+
+ PRE_BNEZAD (r18)
+ addi a3, 16
+ addi a1, 16
+
+ BNEZAD (r18, .L_compare_by_4word)
+
+.L_compare_by_word:
+ zext r18, r2, 3, 2
+ bez r18, .L_compare_by_byte
+.L_compare_by_word_loop:
+ ldw r20, (r3, 0)
+ ldw r21, (r1, 0)
+ addi r3, 4
+ PRE_BNEZAD (r18)
+ cmpne r20, r21
+ addi r1, 4
+ bt .L_byte_check
+ BNEZAD (r18, .L_compare_by_word_loop)
+
+.L_compare_by_byte:
+ zext r18, r2, 1, 0
+ bez r18, .L_return
+.L_compare_by_byte_loop:
+ ldb r0, (r3, 0)
+ ldb r4, (r1, 0)
+ addi r3, 1
+ subu r0, r4
+ PRE_BNEZAD (r18)
+ addi r1, 1
+ bnez r0, .L_return
+ BNEZAD (r18, .L_compare_by_byte_loop)
+
+.L_return:
+ mov r4, r12
+ rts
+
+ /* s1[i] != s2[i] in word, so we check byte 3. */
+.L_byte_check:
+ xtrb3 r0, r20
+ xtrb3 r2, r21
+ subu r0, r2
+ bnez r0, .L_return
+
+ /* check byte 2 */
+ xtrb2 r0, r20
+ xtrb2 r2, r21
+ subu r0, r2
+ bnez r0, .L_return
+
+ /* check byte 1 */
+ xtrb1 r0, r20
+ xtrb1 r2, r21
+ subu r0, r2
+ bnez r0, .L_return
+
+ /* check byte 0 */
+ xtrb0 r0, r20
+ xtrb0 r2, r21
+ subu r0, r2
+ br .L_return
+
+ /* Compare when s1 is not aligned. */
+.L_s1_not_aligned:
+ sub r13, r19, r13
+ sub r2, r13
+.L_s1_not_aligned_loop:
+ ldb r0, (r3, 0)
+ ldb r4, (r1, 0)
+ addi r3, 1
+ subu r0, r4
+ PRE_BNEZAD (r13)
+ addi r1, 1
+ bnez r0, .L_return
+ BNEZAD (r13, .L_s1_not_aligned_loop)
+ br .L_s1_aligned
+END (memcmp)
+weak_alias (memcmp, bcmp)
+libc_hidden_def (memcmp)
+.weak memcmp
diff --git a/sysdeps/csky/abiv2/memcpy.S b/sysdeps/csky/abiv2/memcpy.S
new file mode 100644
index 0000000..739d220
--- /dev/null
+++ b/sysdeps/csky/abiv2/memcpy.S
@@ -0,0 +1,224 @@
+/* The assembly function for memcpy. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+ENTRY (memcpy)
+ /* Test if len less than 4 bytes. */
+ mov r12, r0
+ cmplti r2, 4
+ bt .L_copy_by_byte
+
+ andi r13, r0, 3
+ movi r19, 4
+ /* Test if dest is not 4 bytes aligned. */
+ bnez r13, .L_dest_not_aligned
+.L_dest_aligned:
+ /* If dest is aligned, then copy. */
+ zext r18, r2, 31, 4
+ /* Test if len less than 16 bytes. */
+ bez r18, .L_len_less_16bytes
+ movi r19, 0
+
+ LABLE_ALIGN
+.L_len_larger_16bytes:
+#if defined (__CSKY_VDSPV2__)
+ vldx.8 vr0, (r1), r19
+ PRE_BNEZAD (r18)
+ addi r1, 16
+ vstx.8 vr0, (r0), r19
+ addi r0, 16
+#elif defined (__CK860__)
+ ldw r3, (r1, 0)
+ stw r3, (r0, 0)
+ ldw r3, (r1, 4)
+ stw r3, (r0, 4)
+ ldw r3, (r1, 8)
+ stw r3, (r0, 8)
+ ldw r3, (r1, 12)
+ addi r1, 16
+ stw r3, (r0, 12)
+ addi r0, 16
+#else
+ ldw r20, (r1, 0)
+ ldw r21, (r1, 4)
+ ldw r22, (r1, 8)
+ ldw r23, (r1, 12)
+ stw r20, (r0, 0)
+ stw r21, (r0, 4)
+ stw r22, (r0, 8)
+ stw r23, (r0, 12)
+ PRE_BNEZAD (r18)
+ addi r1, 16
+ addi r0, 16
+#endif
+ BNEZAD (r18, .L_len_larger_16bytes)
+
+.L_len_less_16bytes:
+ zext r18, r2, 3, 2
+ bez r18, .L_copy_by_byte
+.L_len_less_16bytes_loop:
+ ldw r3, (r1, 0)
+ PRE_BNEZAD (r18)
+ addi r1, 4
+ stw r3, (r0, 0)
+ addi r0, 4
+ BNEZAD (r18, .L_len_less_16bytes_loop)
+
+ /* Test if len less than 4 bytes. */
+.L_copy_by_byte:
+ zext r18, r2, 1, 0
+ bez r18, .L_return
+.L_copy_by_byte_loop:
+ ldb r3, (r1, 0)
+ PRE_BNEZAD (r18)
+ addi r1, 1
+ stb r3, (r0, 0)
+ addi r0, 1
+ BNEZAD (r18, .L_copy_by_byte_loop)
+
+.L_return:
+ mov r0, r12
+ rts
+
+ /* If dest is not aligned, just copying some bytes makes the dest
+ align. */
+
+.L_dest_not_aligned:
+ sub r13, r19, r13
+ mov r19, r13
+.L_dest_not_aligned_loop:
+ /* Makes the dest align. */
+ ldb r3, (r1, 0)
+ PRE_BNEZAD (r13)
+ addi r1, 1
+ stb r3, (r0, 0)
+ addi r0, 1
+ BNEZAD (r13, .L_dest_not_aligned_loop)
+ sub r2, r19
+ cmplti r2, 4
+ bt .L_copy_by_byte
+ /* Check whether the src is aligned. */
+ br .L_dest_aligned
+END (memcpy)
+
+libc_hidden_builtin_def (memcpy)
+.weak memcpy
+
+
+ENTRY (memmove)
+ subu r3, r0, r1
+ cmphs r3, r2
+ bt memcpy
+
+ mov r12, r0
+ addu r0, r0, r2
+ addu r1, r1, r2
+
+ /* Test if len less than 4 bytes. */
+ cmplti r2, 4
+ bt .L_copy_by_byte_m
+
+ andi r13, r0, 3
+ /* Test if dest is not 4 bytes aligned. */
+ bnez r13, .L_dest_not_aligned_m
+.L_dest_aligned_m:
+ /* If dest is aligned, then copy. */
+ zext r18, r2, 31, 4
+ /* Test if len less than 16 bytes. */
+ bez r18, .L_len_less_16bytes_m
+ movi r19, 0
+
+ /* len > 16 bytes */
+ LABLE_ALIGN
+.L_len_larger_16bytes_m:
+ subi r1, 16
+ subi r0, 16
+#if defined (__CSKY_VDSPV2__)
+ vldx.8 vr0, (r1), r19
+ PRE_BNEZAD (r18)
+ vstx.8 vr0, (r0), r19
+#elif defined (__CK860__)
+ ldw r3, (r1, 12)
+ stw r3, (r0, 12)
+ ldw r3, (r1, 8)
+ stw r3, (r0, 8)
+ ldw r3, (r1, 4)
+ stw r3, (r0, 4)
+ ldw r3, (r1, 0)
+ stw r3, (r0, 0)
+#else
+ ldw r20, (r1, 0)
+ ldw r21, (r1, 4)
+ ldw r22, (r1, 8)
+ ldw r23, (r1, 12)
+ stw r20, (r0, 0)
+ stw r21, (r0, 4)
+ stw r22, (r0, 8)
+ stw r23, (r0, 12)
+ PRE_BNEZAD (r18)
+#endif
+ BNEZAD (r18, .L_len_larger_16bytes_m)
+
+.L_len_less_16bytes_m:
+ zext r18, r2, 3, 2
+ bez r18, .L_copy_by_byte_m
+.L_len_less_16bytes_loop_m:
+ subi r1, 4
+ subi r0, 4
+ ldw r3, (r1, 0)
+ PRE_BNEZAD (r18)
+ stw r3, (r0, 0)
+ BNEZAD (r18, .L_len_less_16bytes_loop_m)
+
+ /* Test if len less than 4 bytes. */
+.L_copy_by_byte_m:
+ zext r18, r2, 1, 0
+ bez r18, .L_return_m
+.L_copy_by_byte_loop_m:
+ subi r1, 1
+ subi r0, 1
+ ldb r3, (r1, 0)
+ PRE_BNEZAD (r18)
+ stb r3, (r0, 0)
+ BNEZAD (r18, .L_copy_by_byte_loop_m)
+
+.L_return_m:
+ mov r0, r12
+ rts
+
+ /* If dest is not aligned, just copying some bytes makes the dest
+ align. */
+.L_dest_not_aligned_m:
+ sub r2, r13
+.L_dest_not_aligned_loop_m:
+ subi r1, 1
+ subi r0, 1
+ /* Makes the dest align. */
+ ldb r3, (r1, 0)
+ PRE_BNEZAD (r13)
+ stb r3, (r0, 0)
+ BNEZAD (r13, .L_dest_not_aligned_loop_m)
+ cmplti r2, 4
+ bt .L_copy_by_byte_m
+ /* Check whether the src is aligned. */
+ br .L_dest_aligned_m
+END (memmove)
+
+libc_hidden_builtin_def (memmove)
+.weak memmove
diff --git a/sysdeps/csky/abiv2/memmove.S b/sysdeps/csky/abiv2/memmove.S
new file mode 100644
index 0000000..8ba4418
--- /dev/null
+++ b/sysdeps/csky/abiv2/memmove.S
@@ -0,0 +1 @@
+/* memmove is in memcpy.S */
diff --git a/sysdeps/csky/abiv2/memset.S b/sysdeps/csky/abiv2/memset.S
new file mode 100644
index 0000000..dd54a4e
--- /dev/null
+++ b/sysdeps/csky/abiv2/memset.S
@@ -0,0 +1,98 @@
+/* The assembly function for memset. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+ENTRY (memset)
+ /* Test if len less than 4 bytes. */
+ mov r12, r0
+ cmplti r2, 8
+ bt .L_set_by_byte
+
+ andi r13, r0, 3
+ movi r19, 4
+ /* Test if dest is not 4 bytes aligned. */
+ bnez r13, .L_dest_not_aligned
+ /* Hardware can handle unaligned access directly. */
+.L_dest_aligned:
+ zextb r1, r1
+ mov r3, r1
+ lsli r1, 8
+ or r1, r3
+ lsli r3, r1, 16
+ or r3, r1
+
+ /* If dest is aligned, then copy. */
+ zext r18, r2, 31, 4
+ /* Test if len less than 16 bytes. */
+ bez r18, .L_len_less_16bytes
+
+ LABLE_ALIGN
+.L_len_larger_16bytes:
+ stw r3, (r0, 0)
+ stw r3, (r0, 4)
+ stw r3, (r0, 8)
+ stw r3, (r0, 12)
+ PRE_BNEZAD (r18)
+ addi r0, 16
+ BNEZAD (r18, .L_len_larger_16bytes)
+
+.L_len_less_16bytes:
+ zext r18, r2, 3, 2
+ andi r2, 3
+ bez r18, .L_set_by_byte
+.L_len_less_16bytes_loop:
+ stw r3, (r0, 0)
+ PRE_BNEZAD (r18)
+ addi r0, 4
+ BNEZAD (r18, .L_len_less_16bytes_loop)
+
+ /* Test if len less than 4 bytes. */
+.L_set_by_byte:
+ zext r18, r2, 2, 0
+ bez r18, .L_return
+.L_set_by_byte_loop:
+ stb r1, (r0, 0)
+ PRE_BNEZAD (r18)
+ addi r0, 1
+ BNEZAD (r18, .L_set_by_byte_loop)
+
+.L_return:
+ mov r0, r12
+ rts
+
+ /* If dest is not aligned, just set some bytes makes the dest
+ align. */
+
+.L_dest_not_aligned:
+ sub r13, r19, r13
+ sub r2, r13
+.L_dest_not_aligned_loop:
+ /* Makes the dest align. */
+ stb r1, (r0, 0)
+ PRE_BNEZAD (r13)
+ addi r0, 1
+ BNEZAD (r13, .L_dest_not_aligned_loop)
+ cmplti r2, 8
+ bt .L_set_by_byte
+ /* Check whether the src is aligned. */
+ br .L_dest_aligned
+END (memset)
+
+libc_hidden_builtin_def (memset)
+.weak memset
diff --git a/sysdeps/csky/abiv2/setjmp.S b/sysdeps/csky/abiv2/setjmp.S
new file mode 100644
index 0000000..a6cc7e5
--- /dev/null
+++ b/sysdeps/csky/abiv2/setjmp.S
@@ -0,0 +1,77 @@
+/* setjmp for C-SKY ABIV2.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+ENTRY (setjmp)
+ movi a1, 1
+ br __sigsetjmp
+END (setjmp)
+
+ENTRY (_setjmp)
+ movi a1, 0
+ br __sigsetjmp
+END (_setjmp)
+
+libc_hidden_def (_setjmp)
+
+ENTRY (__sigsetjmp)
+ mov a2, a0
+ /* Save registers. */
+
+#ifdef PTR_MANGLE
+ PTR_MANGLE (t0, sp, a3)
+ stw t0, (a2, 0)
+ PTR_MANGLE2 (t0, lr, a3)
+ stw t0, (a2, 4)
+#else
+ stw sp, (a2, 0)
+ stw lr, (a2, 4)
+#endif
+ stw r4, (a2, 8)
+ stw r5, (a2, 12)
+ stw r6, (a2, 16)
+ stw r7, (a2, 20)
+ stw r8, (a2, 24)
+ stw r9, (a2, 28)
+ stw r10, (a2, 32)
+ stw r11, (a2, 36)
+ stw r16, (a2, 40)
+ stw r17, (a2, 44)
+ stw r26, (a2, 48)
+ stw r27, (a2, 52)
+ stw r28, (a2, 56)
+ stw r29, (a2, 60)
+ stw r30, (a2, 64)
+ stw r31, (a2, 68)
+ addi a2, 72
+
+#ifdef __PIC__
+ grs t1, .Lgetpc
+.Lgetpc:
+ lrw t0, .Lgetpc@GOTPC
+ addu t1, t0
+ lrw a2, __sigjmp_save@PLT
+ ldr.w a2, (t1, a2 << 0)
+ jmp a2
+#else
+ jmpi __sigjmp_save
+#endif /* !__PIC__ */
+END (__sigsetjmp)
+
+hidden_def (__sigsetjmp)
diff --git a/sysdeps/csky/abiv2/start.S b/sysdeps/csky/abiv2/start.S
new file mode 100644
index 0000000..ca20d6a
--- /dev/null
+++ b/sysdeps/csky/abiv2/start.S
@@ -0,0 +1,109 @@
+/* Startup code compliant to the ELF C-SKY ABIV2.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ In addition to the permissions in the GNU Lesser General Public
+ License, the Free Software Foundation gives you unlimited
+ permission to link the compiled version of this file with other
+ programs, and to distribute those programs without any restriction
+ coming from the use of this file. (The GNU Lesser General Public
+ License restrictions do apply in other respects; for example, they
+ cover modification of the file, and distribution when not linked
+ into another program.)
+
+ Note that people who make modified versions of this file are not
+ obligated to grant this special exception for their modified
+ versions; it is their choice whether to do so. The GNU Lesser
+ General Public License gives permission to release a modified
+ version without this exception; this exception also makes it
+ possible to release a modified version which carries forward this
+ exception.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* We need to call:
+ __libc_start_main (int (*main) (int, char **, char **), int argc,
+ char **argv, void (*init) (void), void (*fini) (void),
+ void (*rtld_fini) (void), void *stack_end)
+*/
+
+#include <sysdep.h>
+
+ .text
+ .globl _start;
+ .type _start,@function;
+ .align 4;
+_start:
+ subi sp, 8
+ /* Clear the link register since this is the outermost frame. */
+ movi lr, 0
+ /* Pop argc off the stack and save a pointer to argv. */
+ ldw a1, (sp, 8) /* __libc_start_main(arg1): argc */
+ addi a2, sp, 12 /* __libc_start_main(arg2): argv */
+
+ /* Push stack limit. */
+ stw a2, (sp, 8)
+ /* Push rtld_fini. */
+ stw a0, (sp, 4)
+
+#ifdef SHARED
+ grs t0, .Lgetpc
+.Lgetpc:
+ lrw gb, .Lgetpc@GOTPC
+ addu gb, t0
+ lrw a3, __libc_csu_fini@GOT
+ ldr.w a3, (gb, a3 << 0)
+ stw a3, (sp, 0)
+
+ lrw a3, __libc_csu_init@GOT
+ addu a3, gb
+ ldw a3, (a3, 0)
+
+ lrw t0, main@GOT
+ addu t0, gb
+ ldw a0, (t0, 0)
+ lrw t1, __libc_start_main@PLT
+ ldr.w t1, (gb, t1 << 0)
+ jsr t1
+
+ /* Should never get here. */
+ lrw t1, abort@PLT
+ ldr.w t1, (gb, t1 << 0)
+ jsr t1
+#else
+ /* Fetch address of __libc_csu_fini. */
+ lrw a0, __libc_csu_fini
+ /* Push __libc_csu_fini */
+ stw a0, (sp, 0)
+
+ /* Set up the other arguments in registers. */
+ lrw a0, main
+ lrw a3, __libc_csu_init
+ /* Let the libc call main and exit with its return code. */
+ jsri __libc_start_main
+ /* Should never get here. */
+ jsri abort
+#endif /* !SHARED */
+
+ .size _start,.-_start
+
+
+ /* Define a symbol for the first piece of initialized data. */
+ .data
+ .globl __data_start
+__data_start:
+ .long 0
+ .weak data_start
+ data_start = __data_start
diff --git a/sysdeps/csky/abiv2/strcmp.S b/sysdeps/csky/abiv2/strcmp.S
new file mode 100644
index 0000000..26719e2
--- /dev/null
+++ b/sysdeps/csky/abiv2/strcmp.S
@@ -0,0 +1,156 @@
+/* The assembly function for string compare. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+ENTRY (strcmp)
+ mov a3, a0
+ /* Check if the s1 addr is aligned. */
+ xor a2, a3, a1
+ andi a2, 0x3
+ bnez a2, 7f
+ andi t1, a0, 0x3
+ bnez t1, 5f
+
+1:
+ /* If aligned, load word each time. */
+ ldw t0, (a3, 0)
+ ldw t1, (a1, 0)
+ /* If s1[i] != s2[i], goto 2f. */
+ cmpne t0, t1
+ bt 2f
+ /* If s1[i] == s2[i], check if s1 or s2 is at the end. */
+ tstnbz t0
+ /* If at the end, goto 3f (finish comparing). */
+ bf 3f
+
+ ldw t0, (a3, 4)
+ ldw t1, (a1, 4)
+ cmpne t0, t1
+ bt 2f
+ tstnbz t0
+ bf 3f
+
+ ldw t0, (a3, 8)
+ ldw t1, (a1, 8)
+ cmpne t0, t1
+ bt 2f
+ tstnbz t0
+ bf 3f
+
+ ldw t0, (a3, 12)
+ ldw t1, (a1, 12)
+ cmpne t0, t1
+ bt 2f
+ tstnbz t0
+ bf 3f
+
+ ldw t0, (a3, 16)
+ ldw t1, (a1, 16)
+ cmpne t0, t1
+ bt 2f
+ tstnbz t0
+ bf 3f
+
+ ldw t0, (a3, 20)
+ ldw t1, (a1, 20)
+ cmpne t0, t1
+ bt 2f
+ tstnbz t0
+ bf 3f
+
+ ldw t0, (a3, 24)
+ ldw t1, (a1, 24)
+ cmpne t0, t1
+ bt 2f
+ tstnbz t0
+ bf 3f
+
+ ldw t0, (a3, 28)
+ ldw t1, (a1, 28)
+ cmpne t0, t1
+ bt 2f
+ tstnbz t0
+ bf 3f
+
+ addi a3, 32
+ addi a1, 32
+
+ br 1b
+
+ /* s1[i] != s2[i] in word, so we check byte 3. */
+2:
+ xtrb3 a0, t0
+ xtrb3 a2, t1
+ subu a0, a2
+ bez a2, 4f
+ bnez a0, 4f
+
+ /* check byte 2 */
+ xtrb2 a0, t0
+ xtrb2 a2, t1
+ subu a0, a2
+ bez a2, 4f
+ bnez a0, 4f
+
+ /* check byte 1 */
+ xtrb1 a0, t0
+ xtrb1 a2, t1
+ subu a0, a2
+ bez a2, 4f
+ bnez a0, 4f
+
+ /* check byte 0 */
+ xtrb0 a0, t0
+ xtrb0 a2, t1
+ subu a0, a2
+
+ jmp lr
+3:
+ movi a0, 0
+4:
+ jmp lr
+
+ /* Compare when s1 or s2 is not aligned. */
+5:
+ subi t1, 4
+6:
+ ldb a0, (a3, 0)
+ ldb a2, (a1, 0)
+ subu a0, a2
+ bnez a0, 4b
+ addi t1, 1
+ bez a2, 4b
+ addi a1, 1
+ addi a3, 1
+ bez t1, 1b
+ br 6b
+
+7:
+ ldb a0, (a3, 0)
+ addi a3, 1
+ ldb a2, (a1, 0)
+ addi a1, 1
+ subu a0, a2
+ bnez a0, 4b
+ bnez a2, 7b
+ jmp r15
+END (strcmp)
+
+libc_hidden_def (strcmp)
+.weak strcmp
diff --git a/sysdeps/csky/abiv2/strcpy.S b/sysdeps/csky/abiv2/strcpy.S
new file mode 100644
index 0000000..3da4fbe
--- /dev/null
+++ b/sysdeps/csky/abiv2/strcpy.S
@@ -0,0 +1,127 @@
+/* The assembly function for string copy. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+ENTRY (strcpy)
+ mov a3, a0
+ /* Check if the src addr is aligned. */
+ andi t0, a1, 3
+ bnez t0, 11f
+1:
+ /* Check if all the bytes in the word are not zero. */
+ ldw a2, (a1)
+ tstnbz a2
+ bf 9f
+ stw a2, (a3)
+
+ ldw a2, (a1, 4)
+ tstnbz a2
+ bf 2f
+ stw a2, (a3, 4)
+
+ ldw a2, (a1, 8)
+ tstnbz a2
+ bf 3f
+ stw a2, (a3, 8)
+
+ ldw a2, (a1, 12)
+ tstnbz a2
+ bf 4f
+ stw a2, (a3, 12)
+
+ ldw a2, (a1, 16)
+ tstnbz a2
+ bf 5f
+ stw a2, (a3, 16)
+
+ ldw a2, (a1, 20)
+ tstnbz a2
+ bf 6f
+ stw a2, (a3, 20)
+
+ ldw a2, (a1, 24)
+ tstnbz a2
+ bf 7f
+ stw a2, (a3, 24)
+
+ ldw a2, (a1, 28)
+ tstnbz a2
+ bf 8f
+ stw a2, (a3, 28)
+
+ addi a3, 32
+ addi a1, 32
+ br 1b
+
+2:
+ addi a3, 4
+ br 9f
+
+3:
+ addi a3, 8
+ br 9f
+
+4:
+ addi a3, 12
+ br 9f
+
+5:
+ addi a3, 16
+ br 9f
+
+6:
+ addi a3, 20
+ br 9f
+
+7:
+ addi a3, 24
+ br 9f
+
+8:
+ addi a3, 28
+9:
+ xtrb3 t0, a2
+ st.b t0, (a3)
+ bez t0, 10f
+ xtrb2 t0, a2
+ st.b t0, (a3, 1)
+ bez t0, 10f
+ xtrb1 t0, a2
+ st.b t0, (a3, 2)
+ bez t0, 10f
+ stw a2, (a3)
+10:
+ jmp lr
+
+11:
+ subi t0, 4
+12:
+ ld.b a2, (a1)
+ st.b a2, (a3)
+ bez a2, 10b
+ addi t0, 1
+ addi a1, a1, 1
+ addi a3, a3, 1
+ bnez t0, 12b
+ br 1b
+
+END (strcpy)
+
+libc_hidden_def (strcpy)
+.weak strcpy
diff --git a/sysdeps/csky/abiv2/strlen.S b/sysdeps/csky/abiv2/strlen.S
new file mode 100644
index 0000000..96083c3
--- /dev/null
+++ b/sysdeps/csky/abiv2/strlen.S
@@ -0,0 +1,102 @@
+/* The assembly function for string length. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+ENTRY (strlen)
+ /* Check if the start addr is aligned. */
+ mov r3, r0
+ andi r1, r0, 3
+ movi r2, 4
+ movi r0, 0
+ bnez r1, .L_start_not_aligned
+
+ LABLE_ALIGN
+.L_start_addr_aligned:
+ /* Check if all the bytes in the word are not zero. */
+ ldw r1, (r3)
+ tstnbz r1
+ bf .L_string_tail
+
+ ldw r1, (r3, 4)
+ addi r0, 4
+ tstnbz r1
+ bf .L_string_tail
+
+ ldw r1, (r3, 8)
+ addi r0, 4
+ tstnbz r1
+ bf .L_string_tail
+
+ ldw r1, (r3, 12)
+ addi r0, 4
+ tstnbz r1
+ bf .L_string_tail
+
+ ldw r1, (r3, 16)
+ addi r0, 4
+ tstnbz r1
+ bf .L_string_tail
+
+ ldw r1, (r3, 20)
+ addi r0, 4
+ tstnbz r1
+ bf .L_string_tail
+
+ ldw r1, (r3, 24)
+ addi r0, 4
+ tstnbz r1
+ bf .L_string_tail
+
+ ldw r1, (r3, 28)
+ addi r0, 4
+ tstnbz r1
+ bf .L_string_tail
+
+ addi r0, 4
+ addi r3, 32
+ br .L_start_addr_aligned
+
+.L_string_tail:
+ xtrb3 r3, r1
+ bez r3, .L_return
+ addi r0, 1
+ xtrb2 r3, r1
+ bez r3, .L_return
+ addi r0, 1
+ xtrb1 r3, r1
+ bez r3, .L_return
+ addi r0, 1
+
+.L_return:
+ rts
+
+.L_start_not_aligned:
+ sub r2, r2, r1
+.L_start_not_aligned_loop:
+ ldb r1, (r3)
+ PRE_BNEZAD (r2)
+ addi r3, 1
+ bez r1, .L_return
+ addi r0, 1
+ BNEZAD (r2, .L_start_not_aligned_loop)
+ br .L_start_addr_aligned
+END (strlen)
+
+libc_hidden_def (strlen)
+.weak strlen
diff --git a/sysdeps/csky/abort-instr.h b/sysdeps/csky/abort-instr.h
new file mode 100644
index 0000000..27a3536
--- /dev/null
+++ b/sysdeps/csky/abort-instr.h
@@ -0,0 +1,2 @@
+/* An instruction which should crash any program is a breakpoint. */
+#define ABORT_INSTRUCTION asm ("bkpt")
diff --git a/sysdeps/csky/bits/endian.h b/sysdeps/csky/bits/endian.h
new file mode 100644
index 0000000..f5a2dbd
--- /dev/null
+++ b/sysdeps/csky/bits/endian.h
@@ -0,0 +1,6 @@
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+/* Only support little endian at present. */
+#define __BYTE_ORDER __LITTLE_ENDIAN
diff --git a/sysdeps/csky/bits/link.h b/sysdeps/csky/bits/link.h
new file mode 100644
index 0000000..13155ac
--- /dev/null
+++ b/sysdeps/csky/bits/link.h
@@ -0,0 +1,55 @@
+/* Machine-specific declarations for dynamic linker interface. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _LINK_H
+# error "Never include <bits/link.h> directly; use <link.h> instead."
+#endif
+
+/* Registers for entry into PLT on C-SKY. */
+typedef struct La_csky_regs
+{
+ uint32_t lr_reg[4];
+ uint32_t lr_sp;
+ uint32_t lr_lr;
+} La_csky_regs;
+
+/* Return values for calls from PLT on C-SKY. */
+typedef struct La_csky_retval
+{
+ /* Up to four integer registers can be used for a return value. */
+ uint32_t lrv_reg[4];
+ uint32_t lrv_v0;
+} La_csky_retval;
+
+__BEGIN_DECLS
+
+extern Elf32_Addr la_csky_gnu_pltenter (Elf32_Sym *__sym, unsigned int __ndx,
+ uintptr_t *__refcook,
+ uintptr_t *__defcook,
+ La_csky_regs *__regs,
+ unsigned int *__flags,
+ const char *__symname,
+ long int *__framesizep);
+extern unsigned int la_csky_gnu_pltexit (Elf32_Sym *__sym, unsigned int __ndx,
+ uintptr_t *__refcook,
+ uintptr_t *__defcook,
+ const La_csky_regs *__inregs,
+ La_csky_retval *__outregs,
+ const char *__symname);
+
+__END_DECLS
diff --git a/sysdeps/csky/bits/setjmp.h b/sysdeps/csky/bits/setjmp.h
new file mode 100644
index 0000000..6f0cace
--- /dev/null
+++ b/sysdeps/csky/bits/setjmp.h
@@ -0,0 +1,34 @@
+/* Define the machine-dependent type `jmp_buf'. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _CSKY_BITS_SETJMP_H
+#define _CSKY_BITS_SETJMP_H 1
+
+typedef struct __jmp_buf_str
+ {
+ /* Stack pointer. */
+ int __sp;
+ int __lr;
+ /* The actual core defines which registers should be saved. The
+ buffer contains 32 words, keep space for future growth.
+ Callee-saved registers:
+ r4 ~ r11, r16 ~ r17, r26 ~r31 for abiv2; r8 ~ r14 for abiv1. */
+ int __regs[32];
+ } __jmp_buf[1];
+
+#endif
diff --git a/sysdeps/csky/bsd-_setjmp.S b/sysdeps/csky/bsd-_setjmp.S
new file mode 100644
index 0000000..4e6a2da
--- /dev/null
+++ b/sysdeps/csky/bsd-_setjmp.S
@@ -0,0 +1 @@
+/* _setjmp is in setjmp.S */
diff --git a/sysdeps/csky/bsd-setjmp.S b/sysdeps/csky/bsd-setjmp.S
new file mode 100644
index 0000000..1da848d
--- /dev/null
+++ b/sysdeps/csky/bsd-setjmp.S
@@ -0,0 +1 @@
+/* setjmp is in setjmp.S */
diff --git a/sysdeps/csky/gccframe.h b/sysdeps/csky/gccframe.h
new file mode 100644
index 0000000..9451101
--- /dev/null
+++ b/sysdeps/csky/gccframe.h
@@ -0,0 +1,21 @@
+/* Definition of object in frame unwind info. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#define FIRST_PSEUDO_REGISTER 71
+
+#include <sysdeps/generic/gccframe.h>
diff --git a/sysdeps/csky/jmpbuf-unwind.h b/sysdeps/csky/jmpbuf-unwind.h
new file mode 100644
index 0000000..954d7e0
--- /dev/null
+++ b/sysdeps/csky/jmpbuf-unwind.h
@@ -0,0 +1,48 @@
+/* Examine __jmp_buf for unwinding frames. C-SkY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <setjmp.h>
+#include <stdint.h>
+#include <unwind.h>
+#include <sysdep.h>
+
+/* Test if longjmp to JMPBUF would unwind the frame
+ containing a local variable at ADDRESS. */
+#define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \
+ ((void *) (address) < (void *) demangle ((jmpbuf)[0].__sp))
+
+#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
+ _JMPBUF_UNWINDS_ADJ (_jmpbuf, \
+ (void *) (_Unwind_Ptr) _Unwind_GetCFA (_context), \
+ _adj)
+
+static inline uintptr_t __attribute__ ((unused))
+_jmpbuf_sp (__jmp_buf regs)
+{
+ uintptr_t sp = (uintptr_t) regs[0].__sp;
+#ifdef PTR_DEMANGLE
+ PTR_DEMANGLE (sp);
+#endif
+ return sp;
+}
+
+#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
+ ((uintptr_t) (_address) - (_adj) < _jmpbuf_sp (_jmpbuf) - (_adj))
+
+/* We use the normal longjmp for unwinding. */
+#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)
diff --git a/sysdeps/csky/machine-gmon.h b/sysdeps/csky/machine-gmon.h
new file mode 100644
index 0000000..4ef9ca7
--- /dev/null
+++ b/sysdeps/csky/machine-gmon.h
@@ -0,0 +1,32 @@
+/* Machine-dependent definitions for profiling support. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+/* GCC for the C-SKY cannot compile __builtin_return_address (N) for N != 0,
+ so we must use an assembly stub. */
+
+/* We must not pollute the global namespace. */
+#define mcount_internal __mcount_internal
+
+extern void mcount_internal (u_long frompc, u_long selfpc);
+#define _MCOUNT_DECL(frompc, selfpc) \
+ void mcount_internal (u_long frompc, u_long selfpc)
+
+/* Define MCOUNT as empty since we have the implementation in another file. */
+#define MCOUNT
diff --git a/sysdeps/csky/memusage.h b/sysdeps/csky/memusage.h
new file mode 100644
index 0000000..67f36cc
--- /dev/null
+++ b/sysdeps/csky/memusage.h
@@ -0,0 +1,21 @@
+/* Machine-specific definitions for memory usage profiling, C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#define GETSP() ({ register uintptr_t stack_ptr asm ("sp"); stack_ptr; })
+
+#include <sysdeps/generic/memusage.h>
diff --git a/sysdeps/csky/stackinfo.h b/sysdeps/csky/stackinfo.h
new file mode 100644
index 0000000..9b915ba
--- /dev/null
+++ b/sysdeps/csky/stackinfo.h
@@ -0,0 +1,29 @@
+/* Stack environment definitions. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+#include <elf.h>
+
+/* On C-SKY the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+#define DEFAULT_STACK_PERMS (PF_R|PF_W)
+
+#endif /* stackinfo.h */
diff --git a/sysdeps/csky/sysdep.h b/sysdeps/csky/sysdep.h
new file mode 100644
index 0000000..b18337d
--- /dev/null
+++ b/sysdeps/csky/sysdep.h
@@ -0,0 +1,88 @@
+/* Assembler macros for C-SKY.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdeps/generic/sysdep.h>
+#include <features.h>
+
+#ifdef __CSKYABIV1__
+# error "No support for C-SKY ABIV1"
+#endif
+
+#ifdef __ASSEMBLER__
+
+# define ASM_SIZE_DIRECTIVE(name) .size name,.-name
+
+/* Define an entry point visible from C. */
+# define ENTRY(name) \
+ .globl name; \
+ .type name,@function; \
+ .align 4; \
+ name##:; \
+ cfi_startproc; \
+ CALL_MCOUNT
+
+# undef END
+# define END(name) \
+ cfi_endproc; \
+ ASM_SIZE_DIRECTIVE(name)
+
+/* If compiled for profiling, call `mcount' at the start of each function. */
+# ifdef PROF
+# ifdef __PIC__
+# define CALL_MCOUNT \
+ subi sp, 4; \
+ stw lr, (sp, 0); \
+ grs t0, .Lgetpc; \
+.Lgetpc: \
+ lrw gb, .Lgetpc@GOTPC; \
+ addu gb, t0; \
+ lrw t1, _mcount@PLT; \
+ ldr.w t0, (gb, t1 << 0); \
+ jmp t0;
+# else
+# define CALL_MCOUNT \
+ subi sp, 4; \
+ stw lr, (sp, 0); \
+ jbsr _mcount;
+# endif
+# else
+# define CALL_MCOUNT /* Do nothing. */
+# endif
+
+# if defined (__CK860__)
+/* Instruction fetch will be faster when the label is 16 bytes aligned.
+ Filling with nop instruction to avoid extra jump. */
+# define LABLE_ALIGN \
+ .balignw 16, 0x6c03
+
+# define PRE_BNEZAD(R)
+
+# define BNEZAD(R, L) \
+ bnezad R, L
+# else
+# define LABLE_ALIGN \
+ .balignw 8, 0x6c03
+
+# define PRE_BNEZAD(R) \
+ subi R, 1
+
+# define BNEZAD(R, L) \
+ bnez R, L
+# endif
+
+#endif
--
2.7.4
^ permalink raw reply [flat|nested] 57+ messages in thread* Re: [PATCH v4 01/13] C-SKY: ABI related code
2018-09-12 2:56 ` [PATCH v4 01/13] C-SKY: ABI related code Mao Han
@ 2018-09-12 4:16 ` H.J. Lu
2018-09-12 7:07 ` Mao Han
2018-09-17 21:46 ` Joseph Myers
1 sibling, 1 reply; 57+ messages in thread
From: H.J. Lu @ 2018-09-12 4:16 UTC (permalink / raw)
To: Mao Han; +Cc: GNU C Library, c-sky_gcc_upstream, gnu-csky
On Tue, Sep 11, 2018 at 7:56 PM, Mao Han <han_mao@c-sky.com> wrote:
> Codes in this patch contains lots of C-SKY ABI related code. They are
> written accroding to the registers assgnments, relocations, assemblly
> described in C-SKY CPU ABI Standards and C-SKY architercure user guide.
> Available from: https://github.com/c-sky/csky-doc
> This does not contain any linux related code.
>
> * sysdeps/csky/abiv2/__longjmp.S: New file.
> * sysdeps/csky/abiv2/crti.S: Likewise.
> * sysdeps/csky/abiv2/crtn.S: Likewise.
> * sysdeps/csky/abiv2/csky-mcount.S: Likewise.
> * sysdeps/csky/abiv2/dl-trampoline.S: Likewise.
> * sysdeps/csky/abiv2/memcmp.S: Likewise.
> * sysdeps/csky/abiv2/memcpy.S: Likewise.
> * sysdeps/csky/abiv2/memmove.S: Likewise.
> * sysdeps/csky/abiv2/memset.S: Likewise.
> * sysdeps/csky/abiv2/setjmp.S: Likewise.
> * sysdeps/csky/abiv2/start.S: Likewise.
> * sysdeps/csky/abiv2/strcmp.S: Likewise.
> * sysdeps/csky/abiv2/strcpy.S: Likewise.
> * sysdeps/csky/abiv2/strlen.S: Likewise.
> * sysdeps/csky/abort-instr.h: Likewise.
> * sysdeps/csky/bits/endian.h: Likewise.
> * sysdeps/csky/bits/link.h: Likewise.
> * sysdeps/csky/bits/setjmp.h: Likewise.
> * sysdeps/csky/bsd-_setjmp.S: Likewise.
> * sysdeps/csky/bsd-setjmp.S: Likewise.
> * sysdeps/csky/gccframe.h: Likewise.
> * sysdeps/csky/jmpbuf-unwind.h: Likewise.
> * sysdeps/csky/machine-gmon.h: Likewise.
> * sysdeps/csky/memusage.h: Likewise.
> * sysdeps/csky/stackinfo.h: Likewise.
> * sysdeps/csky/sysdep.h: Likewise.
> ---
> sysdeps/csky/abiv2/__longjmp.S | 61 ++++++++++
> sysdeps/csky/abiv2/crti.S | 99 ++++++++++++++++
> sysdeps/csky/abiv2/crtn.S | 50 +++++++++
> sysdeps/csky/abiv2/csky-mcount.S | 72 ++++++++++++
> sysdeps/csky/abiv2/dl-trampoline.S | 50 +++++++++
> sysdeps/csky/abiv2/memcmp.S | 142 +++++++++++++++++++++++
> sysdeps/csky/abiv2/memcpy.S | 224 +++++++++++++++++++++++++++++++++++++
> sysdeps/csky/abiv2/memmove.S | 1 +
> sysdeps/csky/abiv2/memset.S | 98 ++++++++++++++++
> sysdeps/csky/abiv2/setjmp.S | 77 +++++++++++++
> sysdeps/csky/abiv2/start.S | 109 ++++++++++++++++++
> sysdeps/csky/abiv2/strcmp.S | 156 ++++++++++++++++++++++++++
> sysdeps/csky/abiv2/strcpy.S | 127 +++++++++++++++++++++
> sysdeps/csky/abiv2/strlen.S | 102 +++++++++++++++++
> sysdeps/csky/abort-instr.h | 2 +
> sysdeps/csky/bits/endian.h | 6 +
> sysdeps/csky/bits/link.h | 55 +++++++++
> sysdeps/csky/bits/setjmp.h | 34 ++++++
> sysdeps/csky/bsd-_setjmp.S | 1 +
> sysdeps/csky/bsd-setjmp.S | 1 +
> sysdeps/csky/gccframe.h | 21 ++++
> sysdeps/csky/jmpbuf-unwind.h | 48 ++++++++
> sysdeps/csky/machine-gmon.h | 32 ++++++
> sysdeps/csky/memusage.h | 21 ++++
> sysdeps/csky/stackinfo.h | 29 +++++
> sysdeps/csky/sysdep.h | 88 +++++++++++++++
> 26 files changed, 1706 insertions(+)
> create mode 100644 sysdeps/csky/abiv2/__longjmp.S
> create mode 100644 sysdeps/csky/abiv2/crti.S
> create mode 100644 sysdeps/csky/abiv2/crtn.S
> create mode 100644 sysdeps/csky/abiv2/csky-mcount.S
> create mode 100644 sysdeps/csky/abiv2/dl-trampoline.S
> create mode 100644 sysdeps/csky/abiv2/memcmp.S
> create mode 100644 sysdeps/csky/abiv2/memcpy.S
> create mode 100644 sysdeps/csky/abiv2/memmove.S
> create mode 100644 sysdeps/csky/abiv2/memset.S
> create mode 100644 sysdeps/csky/abiv2/setjmp.S
> create mode 100644 sysdeps/csky/abiv2/start.S
> create mode 100644 sysdeps/csky/abiv2/strcmp.S
> create mode 100644 sysdeps/csky/abiv2/strcpy.S
> create mode 100644 sysdeps/csky/abiv2/strlen.S
> create mode 100644 sysdeps/csky/abort-instr.h
> create mode 100644 sysdeps/csky/bits/endian.h
> create mode 100644 sysdeps/csky/bits/link.h
> create mode 100644 sysdeps/csky/bits/setjmp.h
> create mode 100644 sysdeps/csky/bsd-_setjmp.S
> create mode 100644 sysdeps/csky/bsd-setjmp.S
> create mode 100644 sysdeps/csky/gccframe.h
> create mode 100644 sysdeps/csky/jmpbuf-unwind.h
> create mode 100644 sysdeps/csky/machine-gmon.h
> create mode 100644 sysdeps/csky/memusage.h
> create mode 100644 sysdeps/csky/stackinfo.h
> create mode 100644 sysdeps/csky/sysdep.h
>
> diff --git a/sysdeps/csky/abiv2/crti.S b/sysdeps/csky/abiv2/crti.S
> new file mode 100644
> index 0000000..4526a9e
> --- /dev/null
> +++ b/sysdeps/csky/abiv2/crti.S
> @@ -0,0 +1,99 @@
> +/* Special .init and .fini section support for C-SKY ABIV2.
> + Copyright (C) 2018 Free Software Foundation, Inc.
> + This file is part of the GNU C Library.
> +
> + The GNU C Library is free software; you can redistribute it and/or
> + modify it under the terms of the GNU Lesser General Public
> + License as published by the Free Software Foundation; either
> + version 2.1 of the License, or (at your option) any later version.
> +
> + In addition to the permissions in the GNU Lesser General Public
> + License, the Free Software Foundation gives you unlimited
> + permission to link the compiled version of this file with other
> + programs, and to distribute those programs without any restriction
> + coming from the use of this file. (The GNU Lesser General Public
> + License restrictions do apply in other respects; for example, they
> + cover modification of the file, and distribution when not linked
> + into another program.)
> +
> + Note that people who make modified versions of this file are not
> + obligated to grant this special exception for their modified
> + versions; it is their choice whether to do so. The GNU Lesser
> + General Public License gives permission to release a modified
> + version without this exception; this exception also makes it
> + possible to release a modified version which carries forward this
> + exception.
> +
> + The GNU C Library is distributed in the hope that it will be useful,
> + but WITHOUT ANY WARRANTY; without even the implied warranty of
> + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + Lesser General Public License for more details.
> +
> + You should have received a copy of the GNU Lesser General Public
> + License along with the GNU C Library. If not, see
> + <http://www.gnu.org/licenses/>. */
> +
> +/* crti.S puts a function prologue at the beginning of the .init and
> + .fini sections and defines global symbols for those addresses, so
> + they can be called as functions. The symbols _init and _fini are
> + magic and cause the linker to emit DT_INIT and DT_FINI. */
> +
> +#include <libc-symbols.h>
> +#include <sysdep.h>
> +
> +#ifndef PREINIT_FUNCTION
> +# define PREINIT_FUNCTION __gmon_start__
> +#endif
> +
> +#ifndef PREINIT_FUNCTION_WEAK
> +# define PREINIT_FUNCTION_WEAK 1
> +#endif
> +
> +#if PREINIT_FUNCTION_WEAK
> + weak_extern (PREINIT_FUNCTION)
> +#else
> + .hidden PREINIT_FUNCTION
> +#endif
> +
> + .section .init,"ax",@progbits
> + .align 4
> + .globl _init
> + .hidden _init
Does C-SKY really need _init and _fini?
--
H.J.
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 01/13] C-SKY: ABI related code
2018-09-12 4:16 ` H.J. Lu
@ 2018-09-12 7:07 ` Mao Han
2018-09-12 8:23 ` Florian Weimer
0 siblings, 1 reply; 57+ messages in thread
From: Mao Han @ 2018-09-12 7:07 UTC (permalink / raw)
To: H.J. Lu; +Cc: c-sky_gcc_upstream, gnu-csky, libc-alpha
On Tue, Sep 11, 2018 at 09:15:19PM -0700, H.J. Lu wrote:
> On Tue, Sep 11, 2018 at 7:56 PM, Mao Han <han_mao@c-sky.com> wrote:
> > Codes in this patch contains lots of C-SKY ABI related code. They are
> > written accroding to the registers assgnments, relocations, assemblly
> > described in C-SKY CPU ABI Standards and C-SKY architercure user guide.
> >
> > diff --git a/sysdeps/csky/abiv2/crti.S b/sysdeps/csky/abiv2/crti.S
> > new file mode 100644
> > index 0000000..4526a9e
> > --- /dev/null
> > +++ b/sysdeps/csky/abiv2/crti.S
> > @@ -0,0 +1,99 @@
> > +/* Special .init and .fini section support for C-SKY ABIV2.
> > + Copyright (C) 2018 Free Software Foundation, Inc.
> > + This file is part of the GNU C Library.
> > +
> > + The GNU C Library is free software; you can redistribute it and/or
> > + modify it under the terms of the GNU Lesser General Public
> > + License as published by the Free Software Foundation; either
> > + version 2.1 of the License, or (at your option) any later version.
> > +
> > + In addition to the permissions in the GNU Lesser General Public
> > + License, the Free Software Foundation gives you unlimited
> > + permission to link the compiled version of this file with other
> > + programs, and to distribute those programs without any restriction
> > + coming from the use of this file. (The GNU Lesser General Public
> > + License restrictions do apply in other respects; for example, they
> > + cover modification of the file, and distribution when not linked
> > + into another program.)
> > +
> > + Note that people who make modified versions of this file are not
> > + obligated to grant this special exception for their modified
> > + versions; it is their choice whether to do so. The GNU Lesser
> > + General Public License gives permission to release a modified
> > + version without this exception; this exception also makes it
> > + possible to release a modified version which carries forward this
> > + exception.
> > +
> > + The GNU C Library is distributed in the hope that it will be useful,
> > + but WITHOUT ANY WARRANTY; without even the implied warranty of
> > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> > + Lesser General Public License for more details.
> > +
> > + You should have received a copy of the GNU Lesser General Public
> > + License along with the GNU C Library. If not, see
> > + <http://www.gnu.org/licenses/>. */
> > +
> > +/* crti.S puts a function prologue at the beginning of the .init and
> > + .fini sections and defines global symbols for those addresses, so
> > + they can be called as functions. The symbols _init and _fini are
> > + magic and cause the linker to emit DT_INIT and DT_FINI. */
> > +
> > +#include <libc-symbols.h>
> > +#include <sysdep.h>
> > +
> > +#ifndef PREINIT_FUNCTION
> > +# define PREINIT_FUNCTION __gmon_start__
> > +#endif
> > +
> > +#ifndef PREINIT_FUNCTION_WEAK
> > +# define PREINIT_FUNCTION_WEAK 1
> > +#endif
> > +
> > +#if PREINIT_FUNCTION_WEAK
> > + weak_extern (PREINIT_FUNCTION)
> > +#else
> > + .hidden PREINIT_FUNCTION
> > +#endif
> > +
> > + .section .init,"ax",@progbits
> > + .align 4
> > + .globl _init
> > + .hidden _init
>
> Does C-SKY really need _init and _fini?
>
>
> --
> H.J.
It seems used to call some pre-init function for libc, register transactional
memory clone tables and invoke global constructors on C-SKY. Althrough I
haven't found any constructors call by _init, I just tend to have _init and
_fini as most other arch have these.
Han Mao
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 01/13] C-SKY: ABI related code
2018-09-12 7:07 ` Mao Han
@ 2018-09-12 8:23 ` Florian Weimer
2018-09-12 9:06 ` Mao Han
2018-09-29 1:46 ` Palmer Dabbelt
0 siblings, 2 replies; 57+ messages in thread
From: Florian Weimer @ 2018-09-12 8:23 UTC (permalink / raw)
To: Mao Han, H.J. Lu; +Cc: c-sky_gcc_upstream, gnu-csky, libc-alpha
On 09/12/2018 09:07 AM, Mao Han wrote:
> It seems used to call some pre-init function for libc, register transactional
> memory clone tables and invoke global constructors on C-SKY. Althrough I
> haven't found any constructors call by _init, I just tend to have _init and
> _fini as most other arch have these.
The expectation is that for new glibc ports, GCC is tweaked to generate
the array variant of these constructs exclusively, like RISC-V did.
Then you won't need the function variant.
Thanks,
Florian
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 01/13] C-SKY: ABI related code
2018-09-12 8:23 ` Florian Weimer
@ 2018-09-12 9:06 ` Mao Han
2018-09-29 1:46 ` Palmer Dabbelt
1 sibling, 0 replies; 57+ messages in thread
From: Mao Han @ 2018-09-12 9:06 UTC (permalink / raw)
To: Florian Weimer; +Cc: c-sky_gcc_upstream, gnu-csky, libc-alpha
On Wed, Sep 12, 2018 at 10:23:29AM +0200, Florian Weimer wrote:
> On 09/12/2018 09:07 AM, Mao Han wrote:
> >It seems used to call some pre-init function for libc, register transactional
> >memory clone tables and invoke global constructors on C-SKY. Althrough I
> >haven't found any constructors call by _init, I just tend to have _init and
> >_fini as most other arch have these.
>
> The expectation is that for new glibc ports, GCC is tweaked to generate the
> array variant of these constructs exclusively, like RISC-V did. Then you
> won't need the function variant.
>
> Thanks,
> Florian
init_array seems work fine on C-SKY. I'll run the tests again to see whether
there is any new problems.
Han Mao
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 01/13] C-SKY: ABI related code
2018-09-12 8:23 ` Florian Weimer
2018-09-12 9:06 ` Mao Han
@ 2018-09-29 1:46 ` Palmer Dabbelt
2018-09-30 9:04 ` Manuel A. Fernandez Montecelo
2018-10-01 8:18 ` Richard W.M. Jones
1 sibling, 2 replies; 57+ messages in thread
From: Palmer Dabbelt @ 2018-09-29 1:46 UTC (permalink / raw)
To: fweimer, merker, mafm, dj, rjones, david.abdurachmanov
Cc: han_mao, H.J. Lu, c-sky_gcc_upstream, gnu-csky, libc-alpha
On Wed, 12 Sep 2018 01:23:29 PDT (-0700), fweimer@redhat.com wrote:
> On 09/12/2018 09:07 AM, Mao Han wrote:
>> It seems used to call some pre-init function for libc, register transactional
>> memory clone tables and invoke global constructors on C-SKY. Althrough I
>> haven't found any constructors call by _init, I just tend to have _init and
>> _fini as most other arch have these.
>
> The expectation is that for new glibc ports, GCC is tweaked to generate
> the array variant of these constructs exclusively, like RISC-V did.
> Then you won't need the function variant.
I think we're the only ones who do it this way, but it appears to work and
saves us a few symbols so I see no reason not to do so. In RISC-V land we're
pretty aggressive about pruning old interfaces, but this one doesn't appear to
have bitten us anywhere (or at least, has bitten us less than others :)).
The distro guys are probably in a better place to comment on this decision,
though, as this is one of those things that will only crop up in real code.
I've added a few people who are more plugged in to these sorts of issues than I
am.
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 01/13] C-SKY: ABI related code
2018-09-29 1:46 ` Palmer Dabbelt
@ 2018-09-30 9:04 ` Manuel A. Fernandez Montecelo
2018-10-01 8:18 ` Richard W.M. Jones
1 sibling, 0 replies; 57+ messages in thread
From: Manuel A. Fernandez Montecelo @ 2018-09-30 9:04 UTC (permalink / raw)
To: Palmer Dabbelt
Cc: fweimer, Karsten Merker, Manuel A. Fernandez Montecelo,
DJ Delorie, Richard W.M. Jones, David Abdurachmanov, han_mao,
hjl.tools, c-sky_gcc_upstream, gnu-csky, GNU C Library
Hi,
Em sáb, 29 de set de 2018 às 03:46, Palmer Dabbelt <palmer@sifive.com> escreveu:
>
> On Wed, 12 Sep 2018 01:23:29 PDT (-0700), fweimer@redhat.com wrote:
> > On 09/12/2018 09:07 AM, Mao Han wrote:
> >> It seems used to call some pre-init function for libc, register transactional
> >> memory clone tables and invoke global constructors on C-SKY. Althrough I
> >> haven't found any constructors call by _init, I just tend to have _init and
> >> _fini as most other arch have these.
> >
> > The expectation is that for new glibc ports, GCC is tweaked to generate
> > the array variant of these constructs exclusively, like RISC-V did.
> > Then you won't need the function variant.
>
> I think we're the only ones who do it this way, but it appears to work and
> saves us a few symbols so I see no reason not to do so. In RISC-V land we're
> pretty aggressive about pruning old interfaces, but this one doesn't appear to
> have bitten us anywhere (or at least, has bitten us less than others :)).
>
> The distro guys are probably in a better place to comment on this decision,
> though, as this is one of those things that will only crop up in real code.
> I've added a few people who are more plugged in to these sorts of issues than I
> am.
What kind of error messages or behaviours would we see, if this is
used by any software packaged in the distros?
In the Debian port for riscv64, with ~85% of the whole archive
compiled, I don't remember seeing messages in packages that seemed
related to this, but maybe they manifest in non-obvious (for me) ways.
Cheers.
--
Manuel A. Fernandez Montecelo <manuel.montezelo@gmail.com>
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 01/13] C-SKY: ABI related code
2018-09-29 1:46 ` Palmer Dabbelt
2018-09-30 9:04 ` Manuel A. Fernandez Montecelo
@ 2018-10-01 8:18 ` Richard W.M. Jones
1 sibling, 0 replies; 57+ messages in thread
From: Richard W.M. Jones @ 2018-10-01 8:18 UTC (permalink / raw)
To: Palmer Dabbelt
Cc: fweimer, merker, mafm, dj, david.abdurachmanov, han_mao, H.J. Lu,
c-sky_gcc_upstream, gnu-csky, libc-alpha
On Fri, Sep 28, 2018 at 06:46:08PM -0700, Palmer Dabbelt wrote:
> On Wed, 12 Sep 2018 01:23:29 PDT (-0700), fweimer@redhat.com wrote:
> >On 09/12/2018 09:07 AM, Mao Han wrote:
> >>It seems used to call some pre-init function for libc, register transactional
> >>memory clone tables and invoke global constructors on C-SKY. Althrough I
> >>haven't found any constructors call by _init, I just tend to have _init and
> >>_fini as most other arch have these.
> >
> >The expectation is that for new glibc ports, GCC is tweaked to generate
> >the array variant of these constructs exclusively, like RISC-V did.
> >Then you won't need the function variant.
>
> I think we're the only ones who do it this way, but it appears to
> work and saves us a few symbols so I see no reason not to do so. In
> RISC-V land we're pretty aggressive about pruning old interfaces,
> but this one doesn't appear to have bitten us anywhere (or at least,
> has bitten us less than others :)).
>
> The distro guys are probably in a better place to comment on this
> decision, though, as this is one of those things that will only crop
> up in real code. I've added a few people who are more plugged in to
> these sorts of issues than I am.
I read the thread, which for reference starts here:
https://sourceware.org/ml/libc-alpha/2018-09/threads.html#00126
As mafm said too, we'd need to know what to look for to answer this
question. If you can suggest either a message that might have
appeared in the log files during compilation, or a test we can run
across all final binaries/libraries, then I'd be able to do that for
Fedora.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
Fedora Windows cross-compiler. Compile Windows programs, test, and
build Windows installers. Over 100 libraries supported.
http://fedoraproject.org/wiki/MinGW
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 01/13] C-SKY: ABI related code
2018-09-12 2:56 ` [PATCH v4 01/13] C-SKY: ABI related code Mao Han
2018-09-12 4:16 ` H.J. Lu
@ 2018-09-17 21:46 ` Joseph Myers
2018-09-18 6:09 ` Mao Han
1 sibling, 1 reply; 57+ messages in thread
From: Joseph Myers @ 2018-09-17 21:46 UTC (permalink / raw)
To: Mao Han; +Cc: libc-alpha, c-sky_gcc_upstream, gnu-csky
On Wed, 12 Sep 2018, Mao Han wrote:
> +/* The canonical name for the function is `_mcount' in both C and asm,
> + but some old asm code might assume it's `mcount'. */
> +#undef mcount
> +weak_alias (_mcount, mcount)
That may be a reason to have this for old architectures, but you shouldn't
have old asm for a new architecture, so no need for an mcount alias.
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 01/13] C-SKY: ABI related code
2018-09-17 21:46 ` Joseph Myers
@ 2018-09-18 6:09 ` Mao Han
0 siblings, 0 replies; 57+ messages in thread
From: Mao Han @ 2018-09-18 6:09 UTC (permalink / raw)
To: Joseph Myers; +Cc: c-sky_gcc_upstream, gnu-csky, libc-alpha
On Mon, Sep 17, 2018 at 09:45:55PM +0000, Joseph Myers wrote:
> On Wed, 12 Sep 2018, Mao Han wrote:
>
> > +/* The canonical name for the function is `_mcount' in both C and asm,
> > + but some old asm code might assume it's `mcount'. */
> > +#undef mcount
> > +weak_alias (_mcount, mcount)
>
> That may be a reason to have this for old architectures, but you shouldn't
> have old asm for a new architecture, so no need for an mcount alias.
>
Yes. No need to keep this, will remove.
Thanks,
Han Mao
^ permalink raw reply [flat|nested] 57+ messages in thread
* [PATCH v4 03/13] C-SKY: Math support
[not found] ` <cover.1536720821.git.han_mao@c-sky.com>
2018-09-12 2:56 ` [PATCH v4 05/13] C-SKY: Linux Syscall Interface Mao Han
2018-09-12 2:56 ` [PATCH v4 01/13] C-SKY: ABI related code Mao Han
@ 2018-09-12 2:56 ` Mao Han
2018-09-17 21:49 ` Joseph Myers
2018-09-12 2:56 ` [PATCH v4 02/13] C-SKY: TLS support Mao Han
` (9 subsequent siblings)
12 siblings, 1 reply; 57+ messages in thread
From: Mao Han @ 2018-09-12 2:56 UTC (permalink / raw)
To: libc-alpha; +Cc: Mao Han, c-sky_gcc_upstream, gnu-csky
This patch contains support for both hard-float and soft-float. Including
exception handler, fpu related definition, test config and ulps.
Long double is treated as double on C-SKY target.
* sysdeps/csky/bits/fenv.h: New file.
* sysdeps/csky/fpu/fclrexcpt.c: Likewise.
* sysdeps/csky/fpu/fedisblxcpt.c: Likewise.
* sysdeps/csky/fpu/feenablxcpt.c: Likewise.
* sysdeps/csky/fpu/fegetenv.c: Likewise.
* sysdeps/csky/fpu/fegetexcept.c: Likewise.
* sysdeps/csky/fpu/fegetmode.c: Likewise.
* sysdeps/csky/fpu/fegetround.c: Likewise.
* sysdeps/csky/fpu/feholdexcpt.c: Likewise.
* sysdeps/csky/fpu/fenv_libc.h: Likewise.
* sysdeps/csky/fpu/fenv_private.h: Likewise.
* sysdeps/csky/fpu/fesetenv.c: Likewise.
* sysdeps/csky/fpu/fesetexcept.c: Likewise.
* sysdeps/csky/fpu/fesetmode.c: Likewise.
* sysdeps/csky/fpu/fesetround.c: Likewise.
* sysdeps/csky/fpu/feupdateenv.c: Likewise.
* sysdeps/csky/fpu/fgetexcptflg.c: Likewise.
* sysdeps/csky/fpu/fix-fp-int-convert-overflow.h: Likewise.
* sysdeps/csky/fpu/fpu_control.h: Likewise.
* sysdeps/csky/fpu/fraiseexcpt.c: Likewise.
* sysdeps/csky/fpu/fsetexcptflg.c: Likewise.
* sysdeps/csky/fpu/ftestexcept.c: Likewise.
* sysdeps/csky/fpu/libm-test-ulps: Likewise.
* sysdeps/csky/fpu/libm-test-ulps-name: Likewise.
* sysdeps/csky/math-tests-trap.h: Likewise.
* sysdeps/csky/nofpu/Implies: Likewise.
* sysdeps/csky/nofpu/libm-test-ulps: Likewise.
* sysdeps/csky/nofpu/libm-test-ulps-name: Likewise.
* sysdeps/csky/nofpu/math-tests-exceptions.h: Likewise.
* sysdeps/csky/nofpu/math-tests-rounding.h: Likewise.
* sysdeps/csky/sfp-machine.h: Likewise.
* sysdeps/csky/tininess.h: Likewise.
---
sysdeps/csky/bits/fenv.h | 92 ++
sysdeps/csky/fpu/fclrexcpt.c | 42 +
sysdeps/csky/fpu/fedisblxcpt.c | 41 +
sysdeps/csky/fpu/feenablxcpt.c | 40 +
sysdeps/csky/fpu/fegetenv.c | 37 +
sysdeps/csky/fpu/fegetexcept.c | 32 +
sysdeps/csky/fpu/fegetmode.c | 28 +
sysdeps/csky/fpu/fegetround.c | 34 +
sysdeps/csky/fpu/feholdexcpt.c | 34 +
sysdeps/csky/fpu/fenv_libc.h | 30 +
sysdeps/csky/fpu/fenv_private.h | 280 ++++
sysdeps/csky/fpu/fesetenv.c | 59 +
sysdeps/csky/fpu/fesetexcept.c | 33 +
sysdeps/csky/fpu/fesetmode.c | 33 +
sysdeps/csky/fpu/fesetround.c | 32 +
sysdeps/csky/fpu/feupdateenv.c | 46 +
sysdeps/csky/fpu/fgetexcptflg.c | 32 +
sysdeps/csky/fpu/fix-fp-int-convert-overflow.h | 33 +
sysdeps/csky/fpu/fpu_control.h | 109 ++
sysdeps/csky/fpu/fraiseexcpt.c | 126 ++
sysdeps/csky/fpu/fsetexcptflg.c | 43 +
sysdeps/csky/fpu/ftestexcept.c | 30 +
sysdeps/csky/fpu/libm-test-ulps | 1640 +++++++++++++++++++++++
sysdeps/csky/fpu/libm-test-ulps-name | 1 +
sysdeps/csky/math-tests-trap.h | 26 +
sysdeps/csky/nofpu/Implies | 1 +
sysdeps/csky/nofpu/libm-test-ulps | 1694 ++++++++++++++++++++++++
sysdeps/csky/nofpu/libm-test-ulps-name | 1 +
sysdeps/csky/nofpu/math-tests-exceptions.h | 27 +
sysdeps/csky/nofpu/math-tests-rounding.h | 27 +
sysdeps/csky/sfp-machine.h | 50 +
sysdeps/csky/tininess.h | 1 +
32 files changed, 4734 insertions(+)
create mode 100644 sysdeps/csky/bits/fenv.h
create mode 100644 sysdeps/csky/fpu/fclrexcpt.c
create mode 100644 sysdeps/csky/fpu/fedisblxcpt.c
create mode 100644 sysdeps/csky/fpu/feenablxcpt.c
create mode 100644 sysdeps/csky/fpu/fegetenv.c
create mode 100644 sysdeps/csky/fpu/fegetexcept.c
create mode 100644 sysdeps/csky/fpu/fegetmode.c
create mode 100644 sysdeps/csky/fpu/fegetround.c
create mode 100644 sysdeps/csky/fpu/feholdexcpt.c
create mode 100644 sysdeps/csky/fpu/fenv_libc.h
create mode 100644 sysdeps/csky/fpu/fenv_private.h
create mode 100644 sysdeps/csky/fpu/fesetenv.c
create mode 100644 sysdeps/csky/fpu/fesetexcept.c
create mode 100644 sysdeps/csky/fpu/fesetmode.c
create mode 100644 sysdeps/csky/fpu/fesetround.c
create mode 100644 sysdeps/csky/fpu/feupdateenv.c
create mode 100644 sysdeps/csky/fpu/fgetexcptflg.c
create mode 100644 sysdeps/csky/fpu/fix-fp-int-convert-overflow.h
create mode 100644 sysdeps/csky/fpu/fpu_control.h
create mode 100644 sysdeps/csky/fpu/fraiseexcpt.c
create mode 100644 sysdeps/csky/fpu/fsetexcptflg.c
create mode 100644 sysdeps/csky/fpu/ftestexcept.c
create mode 100644 sysdeps/csky/fpu/libm-test-ulps
create mode 100644 sysdeps/csky/fpu/libm-test-ulps-name
create mode 100644 sysdeps/csky/math-tests-trap.h
create mode 100644 sysdeps/csky/nofpu/Implies
create mode 100644 sysdeps/csky/nofpu/libm-test-ulps
create mode 100644 sysdeps/csky/nofpu/libm-test-ulps-name
create mode 100644 sysdeps/csky/nofpu/math-tests-exceptions.h
create mode 100644 sysdeps/csky/nofpu/math-tests-rounding.h
create mode 100644 sysdeps/csky/sfp-machine.h
create mode 100644 sysdeps/csky/tininess.h
diff --git a/sysdeps/csky/bits/fenv.h b/sysdeps/csky/bits/fenv.h
new file mode 100644
index 0000000..dbfc5b9
--- /dev/null
+++ b/sysdeps/csky/bits/fenv.h
@@ -0,0 +1,92 @@
+/* Floating point environment. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _FENV_H
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
+
+/* Define bits representing the exception. We use the bit positions
+ of the appropriate bits in the FPU control word. */
+enum
+ {
+ FE_INVALID =
+#define FE_INVALID 0x01
+ FE_INVALID,
+ FE_DIVBYZERO =
+#define FE_DIVBYZERO 0x02
+ FE_DIVBYZERO,
+ FE_OVERFLOW =
+#define FE_OVERFLOW 0x04
+ FE_OVERFLOW,
+ FE_UNDERFLOW =
+#define FE_UNDERFLOW 0x08
+ FE_UNDERFLOW,
+ FE_INEXACT =
+#define FE_INEXACT 0x10
+ FE_INEXACT,
+ __FE_DENORMAL = 0x20
+ };
+
+#define FE_ALL_EXCEPT \
+ (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
+
+/* The C-SKY FPU supports all of the four defined rounding modes. We
+ use again the bit positions in the FPU control word as the values
+ for the appropriate macros. */
+enum
+ {
+ FE_TONEAREST =
+#define FE_TONEAREST (0x0 << 24)
+ FE_TONEAREST,
+ FE_TOWARDZERO =
+#define FE_TOWARDZERO (0x1 << 24)
+ FE_TOWARDZERO,
+ FE_UPWARD =
+#define FE_UPWARD (0x2 << 24)
+ FE_UPWARD,
+ FE_DOWNWARD =
+#define FE_DOWNWARD (0x3 << 24)
+ FE_DOWNWARD,
+ __FE_ROUND_MASK = (0x3 << 24)
+ };
+
+/* Type representing exception flags. */
+typedef unsigned int fexcept_t;
+
+/* Type representing floating-point environment. */
+typedef struct
+{
+ unsigned int __fpcr;
+ unsigned int __fpsr;
+} fenv_t;
+
+/* If the default argument is used we use this value. */
+#define FE_DFL_ENV ((const fenv_t *) -1)
+
+#ifdef __USE_GNU
+/* Floating-point environment where none of the exceptions are masked. */
+# define FE_NOMASK_ENV ((const fenv_t *) -2)
+#endif
+
+#if __GLIBC_USE (IEC_60559_BFP_EXT)
+/* Type representing floating-point control modes. */
+typedef unsigned int femode_t;
+
+/* Default floating-point control modes. */
+# define FE_DFL_MODE ((const femode_t *) -1L)
+#endif
diff --git a/sysdeps/csky/fpu/fclrexcpt.c b/sysdeps/csky/fpu/fclrexcpt.c
new file mode 100644
index 0000000..de3326b
--- /dev/null
+++ b/sysdeps/csky/fpu/fclrexcpt.c
@@ -0,0 +1,42 @@
+/* Clear given exceptions in current floating-point environment.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fenv_libc.h>
+#include <fpu_control.h>
+
+int
+feclearexcept (int excepts)
+{
+ int fpsr;
+
+ /* Mask out unsupported bits/exceptions. */
+ excepts &= FE_ALL_EXCEPT;
+
+ /* Read the complete control word. */
+ _FPU_GETFPSR (fpsr);
+
+ /* Clear the relevant bits. */
+ fpsr &= ~(excepts | (excepts << CAUSE_SHIFT));
+
+ /* Put the new data in effect. */
+ _FPU_SETFPSR (fpsr);
+
+ return 0;
+}
+libm_hidden_def (feclearexcept)
diff --git a/sysdeps/csky/fpu/fedisblxcpt.c b/sysdeps/csky/fpu/fedisblxcpt.c
new file mode 100644
index 0000000..6b51611
--- /dev/null
+++ b/sysdeps/csky/fpu/fedisblxcpt.c
@@ -0,0 +1,41 @@
+/* Disable floating-point exceptions.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fenv_libc.h>
+#include <fpu_control.h>
+
+int
+fedisableexcept (int excepts)
+{
+ unsigned int new_exc, old_exc;
+
+ /* Get the current control word. */
+ _FPU_GETCW (new_exc);
+
+ old_exc = (new_exc & ENABLE_MASK) >> ENABLE_SHIFT;
+
+ /* Get the except disable mask. */
+ excepts &= FE_ALL_EXCEPT;
+ new_exc &= ~(excepts << ENABLE_SHIFT);
+
+ /* Put the new data in effect. */
+ _FPU_SETCW (new_exc);
+
+ return old_exc;
+}
diff --git a/sysdeps/csky/fpu/feenablxcpt.c b/sysdeps/csky/fpu/feenablxcpt.c
new file mode 100644
index 0000000..feafdb6
--- /dev/null
+++ b/sysdeps/csky/fpu/feenablxcpt.c
@@ -0,0 +1,40 @@
+/* Enable floating-point exceptions.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fenv_libc.h>
+#include <fpu_control.h>
+
+int
+feenableexcept (int excepts)
+{
+ unsigned int new_exc, old_exc;
+
+ /* Get the current control word. */
+ _FPU_GETCW (new_exc);
+
+ old_exc = (new_exc & ENABLE_MASK) >> ENABLE_SHIFT;
+
+ excepts &= FE_ALL_EXCEPT;
+
+ new_exc |= excepts << ENABLE_SHIFT;
+
+ _FPU_SETCW (new_exc);
+
+ return old_exc;
+}
diff --git a/sysdeps/csky/fpu/fegetenv.c b/sysdeps/csky/fpu/fegetenv.c
new file mode 100644
index 0000000..3865839
--- /dev/null
+++ b/sysdeps/csky/fpu/fegetenv.c
@@ -0,0 +1,37 @@
+/* Store current floating-point environment.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+__fegetenv (fenv_t *envp)
+{
+ unsigned int fpcr;
+ unsigned int fpsr;
+
+ _FPU_GETCW (fpcr);
+ _FPU_GETFPSR (fpsr);
+ envp->__fpcr = fpcr;
+ envp->__fpsr = fpsr;
+
+ return 0;
+}
+libm_hidden_def (__fegetenv)
+weak_alias (__fegetenv, fegetenv)
+libm_hidden_weak (fegetenv)
diff --git a/sysdeps/csky/fpu/fegetexcept.c b/sysdeps/csky/fpu/fegetexcept.c
new file mode 100644
index 0000000..e6e46c0
--- /dev/null
+++ b/sysdeps/csky/fpu/fegetexcept.c
@@ -0,0 +1,32 @@
+/* Get enabled floating-point exceptions.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fenv_libc.h>
+#include <fpu_control.h>
+
+int
+fegetexcept (void)
+{
+ unsigned int exc;
+
+ /* Get the current control word. */
+ _FPU_GETCW (exc);
+
+ return (exc & ENABLE_MASK) >> ENABLE_SHIFT;
+}
diff --git a/sysdeps/csky/fpu/fegetmode.c b/sysdeps/csky/fpu/fegetmode.c
new file mode 100644
index 0000000..e229f60
--- /dev/null
+++ b/sysdeps/csky/fpu/fegetmode.c
@@ -0,0 +1,28 @@
+/* Store current floating-point control modes.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+fegetmode (femode_t *modep)
+{
+ _FPU_GETCW (*modep);
+
+ return 0;
+}
diff --git a/sysdeps/csky/fpu/fegetround.c b/sysdeps/csky/fpu/fegetround.c
new file mode 100644
index 0000000..40bda2d
--- /dev/null
+++ b/sysdeps/csky/fpu/fegetround.c
@@ -0,0 +1,34 @@
+/* Return current rounding direction.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+__fegetround (void)
+{
+ unsigned int cw;
+
+ /* Get control word. */
+ _FPU_GETCW (cw);
+
+ return cw & __FE_ROUND_MASK;
+}
+libm_hidden_def (__fegetround)
+weak_alias (__fegetround, fegetround)
+libm_hidden_weak (fegetround)
diff --git a/sysdeps/csky/fpu/feholdexcpt.c b/sysdeps/csky/fpu/feholdexcpt.c
new file mode 100644
index 0000000..e2b1782
--- /dev/null
+++ b/sysdeps/csky/fpu/feholdexcpt.c
@@ -0,0 +1,34 @@
+/* Store current floating-point environment and clear exceptions.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+#include <fenv_libc.h>
+#include <fenv_private.h>
+
+#include <stdio.h>
+
+int
+__feholdexcept (fenv_t *envp)
+{
+ libc_feholdexcept_vfp (envp);
+ return 0;
+}
+libm_hidden_def (__feholdexcept)
+weak_alias (__feholdexcept, feholdexcept)
+libm_hidden_weak (feholdexcept)
diff --git a/sysdeps/csky/fpu/fenv_libc.h b/sysdeps/csky/fpu/fenv_libc.h
new file mode 100644
index 0000000..7904fdb
--- /dev/null
+++ b/sysdeps/csky/fpu/fenv_libc.h
@@ -0,0 +1,30 @@
+/* fpu registers environment. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _FENV_LIBC_H
+#define _FENV_LIBC_H 1
+
+/* Mask for enabling exceptions and for the CAUSE bits. */
+#define ENABLE_MASK 0x0003FU
+#define CAUSE_MASK 0x3F000U
+
+/* Shift for FE_* flags to get up to the ENABLE bits and the CAUSE bits. */
+#define ENABLE_SHIFT 0
+#define CAUSE_SHIFT 8
+
+#endif /* fenv_libc.h */
diff --git a/sysdeps/csky/fpu/fenv_private.h b/sysdeps/csky/fpu/fenv_private.h
new file mode 100644
index 0000000..d086cfc
--- /dev/null
+++ b/sysdeps/csky/fpu/fenv_private.h
@@ -0,0 +1,280 @@
+/* Private floating point rounding and exceptions handling. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef CSKY_FENV_PRIVATE_H
+#define CSKY_FENV_PRIVATE_H 1
+
+#include <fenv.h>
+#include <fpu_control.h>
+#include <fenv_libc.h>
+
+static __always_inline void
+libc_feholdexcept_vfp (fenv_t *envp)
+{
+ fpu_control_t fpsr, fpcr;
+
+ _FPU_GETCW (fpcr);
+ envp->__fpcr = fpcr;
+
+ _FPU_GETFPSR (fpsr);
+ envp->__fpsr = fpsr;
+
+ /* Now set all exceptions to non-stop. */
+ fpcr &= ~FE_ALL_EXCEPT;
+
+ /* And clear all exception flags. */
+ fpsr &= ~(FE_ALL_EXCEPT << CAUSE_SHIFT);
+
+ _FPU_SETFPSR (fpsr);
+
+ _FPU_SETCW (fpcr);
+}
+
+static __always_inline void
+libc_fesetround_vfp (int round)
+{
+ fpu_control_t fpcr;
+
+ _FPU_GETCW (fpcr);
+
+ /* Set new rounding mode if different. */
+ if (__glibc_unlikely ((fpcr & FE_DOWNWARD) != round))
+ _FPU_SETCW ((fpcr & ~FE_DOWNWARD) | round);
+}
+
+static __always_inline void
+libc_feholdexcept_setround_vfp (fenv_t *envp, int round)
+{
+ fpu_control_t fpsr, fpcr;
+
+ _FPU_GETCW (fpcr);
+ envp->__fpcr = fpcr;
+
+ _FPU_GETFPSR (fpsr);
+ envp->__fpsr = fpsr;
+
+ /* Clear exception flags, set all exceptions to non-stop,
+ and set new rounding mode. */
+ fpsr &= ~(FE_ALL_EXCEPT << CAUSE_SHIFT);
+ _FPU_SETFPSR (fpsr);
+
+ fpcr &= ~(FE_ALL_EXCEPT | FE_DOWNWARD);
+ _FPU_SETCW (fpcr | round);
+}
+
+static __always_inline void
+libc_feholdsetround_vfp (fenv_t *envp, int round)
+{
+ fpu_control_t fpcr;
+
+ _FPU_GETCW (fpcr);
+ envp->__fpcr = fpcr;
+
+ /* Set new rounding mode if different. */
+ if (__glibc_unlikely ((fpcr & FE_DOWNWARD) != round))
+ _FPU_SETCW ((fpcr & ~FE_DOWNWARD) | round);
+}
+
+static __always_inline void
+libc_feresetround_vfp (fenv_t *envp)
+{
+ fpu_control_t fpcr, round;
+
+ _FPU_GETCW (fpcr);
+
+ /* Check whether rounding modes are different. */
+ round = (envp->__fpcr ^ fpcr) & FE_DOWNWARD;
+
+ /* Restore the rounding mode if it was changed. */
+ if (__glibc_unlikely (round != 0))
+ _FPU_SETCW (fpcr ^ round);
+}
+
+static __always_inline int
+libc_fetestexcept_vfp (int ex)
+{
+ fpu_control_t fpsr;
+
+ _FPU_GETFPSR (fpsr);
+ fpsr = fpsr >> CAUSE_SHIFT;
+ return fpsr & ex & FE_ALL_EXCEPT;
+}
+
+static __always_inline void
+libc_fesetenv_vfp (const fenv_t *envp)
+{
+ fpu_control_t fpcr, fpsr, new_fpcr, new_fpsr;
+
+ _FPU_GETCW (fpcr);
+ _FPU_GETFPSR (fpsr);
+
+ new_fpcr = envp->__fpcr;
+ new_fpsr = envp->__fpsr;
+
+ if (__glibc_unlikely (fpsr ^ new_fpsr) != 0)
+ _FPU_SETFPSR (new_fpsr);
+
+ if (__glibc_unlikely (fpcr ^ new_fpcr) != 0)
+ _FPU_SETCW (new_fpcr);
+}
+
+static __always_inline int
+libc_feupdateenv_test_vfp (const fenv_t *envp, int ex)
+{
+ fpu_control_t fpcr, fpsr, new_fpcr, new_fpsr, excepts;
+
+ _FPU_GETCW (fpcr);
+ _FPU_GETFPSR (fpsr);
+
+ /* Merge current exception flags with the saved fenv. */
+ excepts = (fpsr >> CAUSE_SHIFT) & FE_ALL_EXCEPT;
+ new_fpcr = envp->__fpcr;
+ new_fpsr = envp->__fpsr | (excepts << CAUSE_SHIFT);
+
+ /* Write FCR and FESR if different. */
+ if (__glibc_unlikely (fpsr ^ new_fpsr) != 0)
+ _FPU_SETFPSR (new_fpsr);
+
+ if (__glibc_unlikely (fpcr ^ new_fpcr) != 0)
+ _FPU_SETCW (new_fpcr);
+
+ /* Raise the exceptions if enabled in the new FP state. */
+ if (__glibc_unlikely (excepts & new_fpcr))
+ __feraiseexcept (excepts);
+
+ return excepts & ex;
+}
+
+static __always_inline void
+libc_feupdateenv_vfp (const fenv_t *envp)
+{
+ libc_feupdateenv_test_vfp (envp, 0);
+}
+
+static __always_inline void
+libc_feholdsetround_vfp_ctx (struct rm_ctx *ctx, int r)
+{
+ fpu_control_t fpcr, fpsr, round;
+
+ _FPU_GETCW (fpcr);
+ _FPU_GETFPSR (fpsr);
+ ctx->updated_status = false;
+ ctx->env.__fpcr = fpcr;
+ ctx->env.__fpsr = fpsr;
+
+ /* Check whether rounding modes are different. */
+ round = (fpcr ^ r) & FE_DOWNWARD;
+
+ /* Set the rounding mode if changed. */
+ if (__glibc_unlikely (round != 0))
+ {
+ ctx->updated_status = true;
+ _FPU_SETCW (fpcr ^ round);
+ }
+}
+
+static __always_inline void
+libc_feresetround_vfp_ctx (struct rm_ctx *ctx)
+{
+ /* Restore the rounding mode if updated. */
+ if (__glibc_unlikely (ctx->updated_status))
+ {
+ fpu_control_t fpcr;
+
+ _FPU_GETCW (fpcr);
+ fpcr = (fpcr & ~FE_DOWNWARD) | (ctx->env.__fpcr & FE_DOWNWARD);
+ _FPU_SETCW (fpcr);
+ }
+}
+
+static __always_inline void
+libc_fesetenv_vfp_ctx (struct rm_ctx *ctx)
+{
+ fpu_control_t fpcr, fpsr, new_fpcr, new_fpsr;
+
+ _FPU_GETCW (fpcr);
+ _FPU_GETFPSR (fpsr);
+
+ new_fpcr = ctx->env.__fpcr;
+ new_fpsr = ctx->env.__fpsr;
+
+ if (__glibc_unlikely (fpsr ^ new_fpsr) != 0)
+ _FPU_SETFPSR (new_fpsr);
+
+ if (__glibc_unlikely (fpcr ^ new_fpcr) != 0)
+ _FPU_SETCW (new_fpcr);
+}
+
+#define libc_feholdexcept libc_feholdexcept_vfp
+#define libc_feholdexceptf libc_feholdexcept_vfp
+#define libc_feholdexceptl libc_feholdexcept_vfp
+
+#define libc_fesetround libc_fesetround_vfp
+#define libc_fesetroundf libc_fesetround_vfp
+#define libc_fesetroundl libc_fesetround_vfp
+
+#define libc_feresetround libc_feresetround_vfp
+#define libc_feresetroundf libc_feresetround_vfp
+#define libc_feresetroundl libc_feresetround_vfp
+
+#define libc_feresetround_noex libc_fesetenv_vfp
+#define libc_feresetround_noexf libc_fesetenv_vfp
+#define libc_feresetround_noexl libc_fesetenv_vfp
+
+#define libc_feholdexcept_setround libc_feholdexcept_setround_vfp
+#define libc_feholdexcept_setroundf libc_feholdexcept_setround_vfp
+#define libc_feholdexcept_setroundl libc_feholdexcept_setround_vfp
+
+#define libc_feholdsetround libc_feholdsetround_vfp
+#define libc_feholdsetroundf libc_feholdsetround_vfp
+#define libc_feholdsetroundl libc_feholdsetround_vfp
+
+#define libc_fetestexcept libc_fetestexcept_vfp
+#define libc_fetestexceptf libc_fetestexcept_vfp
+#define libc_fetestexceptl libc_fetestexcept_vfp
+
+#define libc_fesetenv libc_fesetenv_vfp
+#define libc_fesetenvf libc_fesetenv_vfp
+#define libc_fesetenvl libc_fesetenv_vfp
+
+#define libc_feupdateenv libc_feupdateenv_vfp
+#define libc_feupdateenvf libc_feupdateenv_vfp
+#define libc_feupdateenvl libc_feupdateenv_vfp
+
+#define libc_feupdateenv_test libc_feupdateenv_test_vfp
+#define libc_feupdateenv_testf libc_feupdateenv_test_vfp
+#define libc_feupdateenv_testl libc_feupdateenv_test_vfp
+
+/* We have support for rounding mode context. */
+#define HAVE_RM_CTX 1
+
+#define libc_feholdsetround_ctx libc_feholdsetround_vfp_ctx
+#define libc_feresetround_ctx libc_feresetround_vfp_ctx
+#define libc_feresetround_noex_ctx libc_fesetenv_vfp_ctx
+
+#define libc_feholdsetroundf_ctx libc_feholdsetround_vfp_ctx
+#define libc_feresetroundf_ctx libc_feresetround_vfp_ctx
+#define libc_feresetround_noexf_ctx libc_fesetenv_vfp_ctx
+
+#define libc_feholdsetroundl_ctx libc_feholdsetround_vfp_ctx
+#define libc_feresetroundl_ctx libc_feresetround_vfp_ctx
+#define libc_feresetround_noexl_ctx libc_fesetenv_vfp_ctx
+
+#include_next <fenv_private.h>
+
+#endif /* CSKY_FENV_PRIVATE_H */
diff --git a/sysdeps/csky/fpu/fesetenv.c b/sysdeps/csky/fpu/fesetenv.c
new file mode 100644
index 0000000..dce6770
--- /dev/null
+++ b/sysdeps/csky/fpu/fesetenv.c
@@ -0,0 +1,59 @@
+/* Install given floating-point environment.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+__fesetenv (const fenv_t *envp)
+{
+ unsigned int fpcr;
+ unsigned int fpsr;
+
+ _FPU_GETCW (fpcr);
+ _FPU_GETFPSR (fpsr);
+
+ fpcr &= _FPU_RESERVED;
+ fpsr &= _FPU_FPSR_RESERVED;
+
+ if (envp == FE_DFL_ENV)
+ {
+ fpcr |= _FPU_DEFAULT;
+ fpsr |= _FPU_FPSR_DEFAULT;
+ }
+ else if (envp == FE_NOMASK_ENV)
+ {
+ fpcr |= _FPU_FPCR_IEEE;
+ fpsr |= _FPU_FPSR_IEEE;
+ }
+ else
+ {
+ fpcr |= envp->__fpcr & ~_FPU_RESERVED;
+ fpsr |= envp->__fpsr & ~_FPU_FPSR_RESERVED;
+ }
+
+ _FPU_SETFPSR (fpsr);
+
+ _FPU_SETCW (fpcr);
+
+ /* Success. */
+ return 0;
+}
+libm_hidden_def (__fesetenv)
+weak_alias (__fesetenv, fesetenv)
+libm_hidden_weak (fesetenv)
diff --git a/sysdeps/csky/fpu/fesetexcept.c b/sysdeps/csky/fpu/fesetexcept.c
new file mode 100644
index 0000000..e7cd302
--- /dev/null
+++ b/sysdeps/csky/fpu/fesetexcept.c
@@ -0,0 +1,33 @@
+/* Set given exception flags.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+#include <fenv_libc.h>
+
+int
+fesetexcept (int excepts)
+{
+ fpu_control_t fpsr, new_fpsr;
+ _FPU_GETFPSR (fpsr);
+ new_fpsr = fpsr | ((excepts & FE_ALL_EXCEPT) << CAUSE_SHIFT);
+ if (new_fpsr != fpsr)
+ _FPU_SETFPSR (new_fpsr);
+
+ return 0;
+}
diff --git a/sysdeps/csky/fpu/fesetmode.c b/sysdeps/csky/fpu/fesetmode.c
new file mode 100644
index 0000000..65977ef
--- /dev/null
+++ b/sysdeps/csky/fpu/fesetmode.c
@@ -0,0 +1,33 @@
+/* Install given floating-point control modes.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+fesetmode (const femode_t *modep)
+{
+ femode_t mode;
+ if (modep == FE_DFL_MODE)
+ mode = _FPU_DEFAULT;
+ else
+ mode = *modep;
+ _FPU_SETCW (mode);
+
+ return 0;
+}
diff --git a/sysdeps/csky/fpu/fesetround.c b/sysdeps/csky/fpu/fesetround.c
new file mode 100644
index 0000000..c5c3604
--- /dev/null
+++ b/sysdeps/csky/fpu/fesetround.c
@@ -0,0 +1,32 @@
+/* Set current rounding direction.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+#include <fenv_private.h>
+
+#include <stdio.h>
+int
+__fesetround (int round)
+{
+ libc_fesetround_vfp (round);
+ return 0;
+}
+libm_hidden_def (__fesetround)
+weak_alias (__fesetround, fesetround)
+libm_hidden_weak (fesetround)
diff --git a/sysdeps/csky/fpu/feupdateenv.c b/sysdeps/csky/fpu/feupdateenv.c
new file mode 100644
index 0000000..f7aec63
--- /dev/null
+++ b/sysdeps/csky/fpu/feupdateenv.c
@@ -0,0 +1,46 @@
+/* Install given floating-point environment and raise exceptions.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+#include <fenv_libc.h>
+#include <fenv_private.h>
+#include <stdio.h>
+
+int
+__feupdateenv (const fenv_t *envp)
+{
+ int temp;
+
+ /* Save current exceptions. */
+ _FPU_GETFPSR (temp);
+ temp = (temp >> CAUSE_SHIFT) & FE_ALL_EXCEPT;
+ /* Install new environment. */
+ __fesetenv (envp);
+
+ /* Raise the safed exception. Incidently for us the implementation
+ defined format of the values in objects of type fexcept_t is the
+ same as the ones specified using the FE_* constants. */
+ feraiseexcept (temp);
+
+ /* Success. */
+ return 0;
+}
+libm_hidden_def (__feupdateenv)
+weak_alias (__feupdateenv, feupdateenv)
+libm_hidden_weak (feupdateenv)
diff --git a/sysdeps/csky/fpu/fgetexcptflg.c b/sysdeps/csky/fpu/fgetexcptflg.c
new file mode 100644
index 0000000..38c4df3
--- /dev/null
+++ b/sysdeps/csky/fpu/fgetexcptflg.c
@@ -0,0 +1,32 @@
+/* Store current representation for exceptions.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+#include <fenv_libc.h>
+#include <fenv_private.h>
+#include <stdio.h>
+
+int
+fegetexceptflag (fexcept_t *flagp, int excepts)
+{
+ *flagp = libc_fetestexcept_vfp (excepts);
+
+ /* Success. */
+ return 0;
+}
diff --git a/sysdeps/csky/fpu/fix-fp-int-convert-overflow.h b/sysdeps/csky/fpu/fix-fp-int-convert-overflow.h
new file mode 100644
index 0000000..b3bf482
--- /dev/null
+++ b/sysdeps/csky/fpu/fix-fp-int-convert-overflow.h
@@ -0,0 +1,33 @@
+/* Fix for conversion of floating point to integer overflow. C-SKY version.
+ Copyright (C) 2015-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef FIX_FP_INT_CONVERT_OVERFLOW_H
+#define FIX_FP_INT_CONVERT_OVERFLOW_H 1
+
+/* Define these macros to 1 to workaround conversions of out-of-range
+ floating-point numbers to integer types failing to raise the
+ "invalid" exception, or raising spurious "inexact" or other
+ exceptions. */
+#define FIX_FLT_LONG_CONVERT_OVERFLOW 1
+#define FIX_FLT_LLONG_CONVERT_OVERFLOW 1
+#define FIX_DBL_LONG_CONVERT_OVERFLOW 1
+#define FIX_DBL_LLONG_CONVERT_OVERFLOW 1
+#define FIX_LDBL_LONG_CONVERT_OVERFLOW 1
+#define FIX_LDBL_LLONG_CONVERT_OVERFLOW 1
+
+#endif /* fix-fp-int-convert-overflow.h */
diff --git a/sysdeps/csky/fpu/fpu_control.h b/sysdeps/csky/fpu/fpu_control.h
new file mode 100644
index 0000000..c7d778a
--- /dev/null
+++ b/sysdeps/csky/fpu/fpu_control.h
@@ -0,0 +1,109 @@
+/* FPU control word bits. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _FPU_CONTROL_H
+#define _FPU_CONTROL_H
+
+/* C-SKY FPU floating point control register bits.
+
+ 31-28 -> reserved (read as 0, write with 0)
+ 27 -> 0: flush denormalized results to zero
+ 1: flush denormalized results to signed minimal normal number.
+ 26 -> reserved (read as 0, write with 0)
+ 25-24 -> rounding control
+ 23-6 -> reserved (read as 0, write with 0)
+ 5 -> enable exception for input denormalized exception
+ 4 -> enable exception for inexact exception
+ 3 -> enable exception for underflow exception
+ 2 -> enable exception for overflow exception
+ 1 -> enable exception for division by zero exception
+ 0 -> enable exception for invalid operation exception
+
+ Rounding Control:
+ 00 - rounding to nearest (RN)
+ 01 - rounding toward zero (RZ)
+ 10 - rounding (up) toward plus infinity (RP)
+ 11 - rounding (down)toward minus infinity (RM)
+
+ C-SKY FPU floating point exception status register bits.
+
+ 15 -> accumulate bit for any exception
+ 14 -> reserved (read as 0, write with 0)
+ 13 -> cause bit for input denormalized exception
+ 12 -> cause bit for inexact exception
+ 11 -> cause bit for underflow exception
+ 10 -> cause bit for overflow exception
+ 9 -> cause bit for division by zero exception
+ 8 -> cause bit for invalid operation exception
+ 7 -> flag bit for any exception
+ 6 -> reserved (read as 0, write with 0)
+ 5 -> flag exception for input denormalized exception
+ 4 -> flag exception for inexact exception
+ 3 -> flag exception for underflow exception
+ 2 -> flag exception for overflow exception
+ 1 -> flag exception for division by zero exception
+ 0 -> flag exception for invalid operation exception */
+
+#include <features.h>
+
+/* masking of interrupts */
+#define _FPU_MASK_IDE (1 << 5) /* input denormalized exception */
+#define _FPU_MASK_IXE (1 << 4) /* inexact exception */
+#define _FPU_MASK_UFE (1 << 3) /* underflow exception */
+#define _FPU_MASK_OFE (1 << 2) /* overflow exception */
+#define _FPU_MASK_DZE (1 << 1) /* division by zero exception */
+#define _FPU_MASK_IOE (1 << 0) /* invalid operation exception */
+
+#define _FPU_MASK_FEA (1 << 15) /* case for any exception */
+#define _FPU_MASK_FEC (1 << 7) /* flag for any exception */
+
+/* flush denormalized numbers to zero */
+#define _FPU_FLUSH_TZ 0x8000000
+
+/* rounding control */
+#define _FPU_RC_NEAREST (0x0 << 24) /* RECOMMENDED */
+#define _FPU_RC_ZERO (0x1 << 24)
+#define _FPU_RC_UP (0x2 << 24)
+#define _FPU_RC_DOWN (0x3 << 24)
+
+#define _FPU_RESERVED 0xf460ffc0 /* Reserved bits in cw */
+#define _FPU_FPSR_RESERVED 0xffff4040
+
+/* The fdlibm code requires strict IEEE double precision arithmetic,
+ and no interrupts for exceptions, rounding to nearest. */
+
+#define _FPU_DEFAULT 0x00000000
+#define _FPU_FPSR_DEFAULT 0x00000000
+
+/* IEEE: same as above, but exceptions */
+#define _FPU_FPCR_IEEE 0x0000001F
+#define _FPU_FPSR_IEEE 0x00000000
+
+/* Type of the control word. */
+typedef unsigned int fpu_control_t;
+
+/* Macros for accessing the hardware control word. */
+# define _FPU_GETCW(cw) __asm__ volatile ("mfcr %0, cr<1, 2>" : "=a" (cw))
+# define _FPU_SETCW(cw) __asm__ volatile ("mtcr %0, cr<1, 2>" : : "a" (cw))
+# define _FPU_GETFPSR(cw) __asm__ volatile ("mfcr %0, cr<2, 2>" : "=a" (cw))
+# define _FPU_SETFPSR(cw) __asm__ volatile ("mtcr %0, cr<2, 2>" : : "a" (cw))
+
+/* Default control word set at startup. */
+extern fpu_control_t __fpu_control;
+
+#endif /* fpu_control.h */
diff --git a/sysdeps/csky/fpu/fraiseexcpt.c b/sysdeps/csky/fpu/fraiseexcpt.c
new file mode 100644
index 0000000..3419ac7
--- /dev/null
+++ b/sysdeps/csky/fpu/fraiseexcpt.c
@@ -0,0 +1,126 @@
+/* Raise given exceptions.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fenv_libc.h>
+#include <fpu_control.h>
+#include <float.h>
+#include <math.h>
+
+int
+__feraiseexcept (int excepts)
+{
+ /* Raise exceptions represented by EXCEPTS. But we must raise only one
+ signal at a time. It is important that if the overflow/underflow
+ exception and the divide by zero exception are given at the same
+ time, the overflow/underflow exception follows the divide by zero
+ exception. */
+
+# ifndef __csky_fpuv1__
+ /* First: invalid exception. */
+ if (FE_INVALID & excepts)
+ {
+ /* One example of a invalid operation is 0 * Infinity. */
+ float x = HUGE_VALF, y = 0.0f;
+ __asm__ __volatile__ ("fmuls %0, %0, %1" : "+v" (x) : "v" (y));
+ }
+
+ /* Next: division by zero. */
+ if (FE_DIVBYZERO & excepts)
+ {
+ float x = 1.0f, y = 0.0f;
+ __asm__ __volatile__ ("fdivs %0, %0, %1" : "+v" (x) : "v" (y));
+ }
+
+ /* Next: overflow. */
+ if (FE_OVERFLOW & excepts)
+ {
+ float x = FLT_MAX;
+ __asm__ __volatile__ ("fmuls %0, %0, %0" : "+v" (x));
+ }
+ /* Next: underflow. */
+ if (FE_UNDERFLOW & excepts)
+ {
+ float x = -FLT_MIN;
+
+ __asm__ __volatile__ ("fmuls %0, %0, %0" : "+v" (x));
+ }
+
+ /* Last: inexact. */
+ if (FE_INEXACT & excepts)
+ {
+ float x = 1.0f, y = 3.0f;
+ __asm__ __volatile__ ("fdivs %0, %0, %1" : "+v" (x) : "v" (y));
+ }
+
+ if (__FE_DENORMAL & excepts)
+ {
+ double x = 4.9406564584124654e-324;
+ __asm__ __volatile__ ("fstod %0, %0" : "+v" (x));
+ }
+# else
+ int tmp = 0;
+ /* First: invalid exception. */
+ if (FE_INVALID & excepts)
+ {
+ /* One example of a invalid operation is 0 * Infinity. */
+ float x = HUGE_VALF, y = 0.0f;
+ __asm__ __volatile__ ("fmuls %0, %0, %2, %1"
+ : "+f" (x), "+r"(tmp) : "f" (y));
+ }
+
+ /* Next: division by zero. */
+ if (FE_DIVBYZERO & excepts)
+ {
+ float x = 1.0f, y = 0.0f;
+ __asm__ __volatile__ ("fdivs %0, %0, %2, %1"
+ : "+f" (x), "+r"(tmp) : "f" (y));
+ }
+
+ /* Next: overflow. */
+ if (FE_OVERFLOW & excepts)
+ {
+ float x = FLT_MAX, y = FLT_MAX;
+ __asm__ __volatile__ ("fmuls %0, %0, %2, %1"
+ : "+f" (x), "+r"(tmp) : "f" (y));
+ }
+
+ /* Next: underflow. */
+ if (FE_UNDERFLOW & excepts)
+ {
+ float x = -FLT_MIN, y = -FLT_MIN;
+
+ __asm__ __volatile__ ("fmuls %0, %0, %2, %1"
+ : "+f" (x), "+r"(tmp) : "f" (y));
+ }
+
+ /* Last: inexact. */
+ if (FE_INEXACT & excepts)
+ {
+ float x = 1.0f, y = 3.0f;
+ __asm__ __volatile__ ("fdivs %0, %0, %2, %1"
+ : "+f" (x), "+r"(tmp) : "f" (y));
+ }
+# endif /* __csky_fpuv2__ */
+
+ /* Success. */
+ return 0;
+}
+libm_hidden_def (__feraiseexcept)
+weak_alias (__feraiseexcept, feraiseexcept)
+libm_hidden_weak (feraiseexcept)
diff --git a/sysdeps/csky/fpu/fsetexcptflg.c b/sysdeps/csky/fpu/fsetexcptflg.c
new file mode 100644
index 0000000..ca9202d
--- /dev/null
+++ b/sysdeps/csky/fpu/fsetexcptflg.c
@@ -0,0 +1,43 @@
+/* Set floating-point environment exception handling.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+#include <fenv_libc.h>
+
+int
+fesetexceptflag (const fexcept_t *flagp, int excepts)
+{
+ fpu_control_t temp;
+
+ /* Get the current exceptions. */
+ _FPU_GETFPSR (temp);
+
+ /* Make sure the flags we want restored are legal. */
+ excepts &= FE_ALL_EXCEPT;
+
+ /* Now clear the bits called for, and copy them in from flagp. Note that
+ we ignore all non-flag bits from *flagp, so they don't matter. */
+ temp = ((temp >> CAUSE_SHIFT) & ~excepts) | (*flagp & excepts);
+ temp = temp << CAUSE_SHIFT;
+
+ _FPU_SETFPSR (temp);
+
+ /* Success. */
+ return 0;
+}
diff --git a/sysdeps/csky/fpu/ftestexcept.c b/sysdeps/csky/fpu/ftestexcept.c
new file mode 100644
index 0000000..fee7544
--- /dev/null
+++ b/sysdeps/csky/fpu/ftestexcept.c
@@ -0,0 +1,30 @@
+/* Test exception in current environment.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+#include <fenv_libc.h>
+#include <fenv_private.h>
+#include <stdio.h>
+
+int
+fetestexcept (int excepts)
+{
+ return libc_fetestexcept_vfp (excepts);
+}
+libm_hidden_def (fetestexcept)
diff --git a/sysdeps/csky/fpu/libm-test-ulps b/sysdeps/csky/fpu/libm-test-ulps
new file mode 100644
index 0000000..f80fb8a
--- /dev/null
+++ b/sysdeps/csky/fpu/libm-test-ulps
@@ -0,0 +1,1640 @@
+# Begin of automatic generation
+
+# Maximal error of functions:
+Function: "acos":
+float: 1
+ifloat: 1
+
+Function: "acos_downward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "acos_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "acos_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "acosh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "acosh_downward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "acosh_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "acosh_upward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "asin":
+float: 1
+ifloat: 1
+
+Function: "asin_downward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "asin_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "asin_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "asinh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "asinh_downward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "asinh_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "asinh_upward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "atan":
+float: 1
+ifloat: 1
+
+Function: "atan2":
+float: 1
+ifloat: 1
+
+Function: "atan2_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "atan2_towardzero":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "atan2_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "atan_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "atan_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "atan_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "atanh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "atanh_downward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "atanh_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "atanh_upward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "cabs":
+double: 1
+idouble: 1
+
+Function: "cabs_downward":
+double: 1
+idouble: 1
+
+Function: "cabs_towardzero":
+double: 1
+idouble: 1
+
+Function: "cabs_upward":
+double: 1
+idouble: 1
+
+Function: Real part of "cacos":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "cacos":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "cacos_downward":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: Imaginary part of "cacos_downward":
+double: 5
+float: 3
+idouble: 5
+ifloat: 3
+
+Function: Real part of "cacos_towardzero":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: Imaginary part of "cacos_towardzero":
+double: 4
+float: 2
+idouble: 4
+ifloat: 2
+
+Function: Real part of "cacos_upward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "cacos_upward":
+double: 5
+float: 7
+idouble: 5
+ifloat: 7
+
+Function: Real part of "cacosh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "cacosh":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "cacosh_downward":
+double: 4
+float: 2
+idouble: 4
+ifloat: 2
+
+Function: Imaginary part of "cacosh_downward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: Real part of "cacosh_towardzero":
+double: 4
+float: 2
+idouble: 4
+ifloat: 2
+
+Function: Imaginary part of "cacosh_towardzero":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: Real part of "cacosh_upward":
+double: 4
+float: 3
+idouble: 4
+ifloat: 3
+
+Function: Imaginary part of "cacosh_upward":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "carg":
+float: 1
+ifloat: 1
+
+Function: "carg_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "carg_towardzero":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "carg_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "casin":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "casin":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "casin_downward":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: Imaginary part of "casin_downward":
+double: 5
+float: 3
+idouble: 5
+ifloat: 3
+
+Function: Real part of "casin_towardzero":
+double: 3
+float: 1
+idouble: 3
+ifloat: 1
+
+Function: Imaginary part of "casin_towardzero":
+double: 4
+float: 2
+idouble: 4
+ifloat: 2
+
+Function: Real part of "casin_upward":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: Imaginary part of "casin_upward":
+double: 5
+float: 7
+idouble: 5
+ifloat: 7
+
+Function: Real part of "casinh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "casinh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "casinh_downward":
+double: 5
+float: 3
+idouble: 5
+ifloat: 3
+
+Function: Imaginary part of "casinh_downward":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: Real part of "casinh_towardzero":
+double: 4
+float: 2
+idouble: 4
+ifloat: 2
+
+Function: Imaginary part of "casinh_towardzero":
+double: 3
+float: 1
+idouble: 3
+ifloat: 1
+
+Function: Real part of "casinh_upward":
+double: 5
+float: 7
+idouble: 5
+ifloat: 7
+
+Function: Imaginary part of "casinh_upward":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: Real part of "catan":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "catan":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "catan_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "catan_downward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "catan_towardzero":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "catan_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "catan_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "catan_upward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "catanh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "catanh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "catanh_downward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "catanh_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "catanh_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "catanh_towardzero":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "catanh_upward":
+double: 4
+float: 4
+idouble: 4
+ifloat: 4
+
+Function: Imaginary part of "catanh_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "cbrt":
+double: 3
+float: 1
+idouble: 3
+ifloat: 1
+
+Function: "cbrt_downward":
+double: 4
+float: 1
+idouble: 4
+ifloat: 1
+
+Function: "cbrt_towardzero":
+double: 3
+float: 1
+idouble: 3
+ifloat: 1
+
+Function: "cbrt_upward":
+double: 5
+float: 1
+idouble: 5
+ifloat: 1
+
+Function: Real part of "ccos":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "ccos":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "ccos_downward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "ccos_downward":
+double: 2
+float: 3
+idouble: 2
+ifloat: 3
+
+Function: Real part of "ccos_towardzero":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "ccos_towardzero":
+double: 2
+float: 3
+idouble: 2
+ifloat: 3
+
+Function: Real part of "ccos_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "ccos_upward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "ccosh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "ccosh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "ccosh_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "ccosh_downward":
+double: 2
+float: 3
+idouble: 2
+ifloat: 3
+
+Function: Real part of "ccosh_towardzero":
+double: 1
+float: 3
+idouble: 1
+ifloat: 3
+
+Function: Imaginary part of "ccosh_towardzero":
+double: 2
+float: 3
+idouble: 2
+ifloat: 3
+
+Function: Real part of "ccosh_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "ccosh_upward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "cexp":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: Imaginary part of "cexp":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "cexp_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "cexp_downward":
+double: 1
+float: 3
+idouble: 1
+ifloat: 3
+
+Function: Real part of "cexp_towardzero":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "cexp_towardzero":
+double: 1
+float: 3
+idouble: 1
+ifloat: 3
+
+Function: Real part of "cexp_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "cexp_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "clog":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: Imaginary part of "clog":
+float: 1
+ifloat: 1
+
+Function: Real part of "clog10":
+double: 3
+float: 4
+idouble: 3
+ifloat: 4
+
+Function: Imaginary part of "clog10":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "clog10_downward":
+double: 5
+float: 5
+idouble: 5
+ifloat: 5
+
+Function: Imaginary part of "clog10_downward":
+double: 2
+float: 4
+idouble: 2
+ifloat: 4
+
+Function: Real part of "clog10_towardzero":
+double: 5
+float: 5
+idouble: 5
+ifloat: 5
+
+Function: Imaginary part of "clog10_towardzero":
+double: 2
+float: 4
+idouble: 2
+ifloat: 4
+
+Function: Real part of "clog10_upward":
+double: 6
+float: 5
+idouble: 6
+ifloat: 5
+
+Function: Imaginary part of "clog10_upward":
+double: 2
+float: 4
+idouble: 2
+ifloat: 4
+
+Function: Real part of "clog_downward":
+double: 4
+float: 3
+idouble: 4
+ifloat: 3
+
+Function: Imaginary part of "clog_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "clog_towardzero":
+double: 4
+float: 4
+idouble: 4
+ifloat: 4
+
+Function: Imaginary part of "clog_towardzero":
+double: 1
+float: 3
+idouble: 1
+ifloat: 3
+
+Function: Real part of "clog_upward":
+double: 4
+float: 3
+idouble: 4
+ifloat: 3
+
+Function: Imaginary part of "clog_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "cos":
+double: 1
+idouble: 1
+
+Function: "cos_downward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "cos_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "cos_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "cosh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "cosh_downward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "cosh_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "cosh_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "cpow":
+double: 2
+float: 5
+idouble: 2
+ifloat: 5
+
+Function: Imaginary part of "cpow":
+float: 2
+ifloat: 2
+
+Function: Real part of "cpow_downward":
+double: 4
+float: 8
+idouble: 4
+ifloat: 8
+
+Function: Imaginary part of "cpow_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "cpow_towardzero":
+double: 4
+float: 8
+idouble: 4
+ifloat: 8
+
+Function: Imaginary part of "cpow_towardzero":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "cpow_upward":
+double: 4
+float: 1
+idouble: 4
+ifloat: 1
+
+Function: Imaginary part of "cpow_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "csin":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "csin_downward":
+double: 2
+float: 3
+idouble: 2
+ifloat: 3
+
+Function: Imaginary part of "csin_downward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "csin_towardzero":
+double: 2
+float: 3
+idouble: 2
+ifloat: 3
+
+Function: Imaginary part of "csin_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "csin_upward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "csin_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "csinh":
+float: 1
+ifloat: 1
+
+Function: Imaginary part of "csinh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "csinh_downward":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: Imaginary part of "csinh_downward":
+double: 2
+float: 3
+idouble: 2
+ifloat: 3
+
+Function: Real part of "csinh_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "csinh_towardzero":
+double: 2
+float: 3
+idouble: 2
+ifloat: 3
+
+Function: Real part of "csinh_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "csinh_upward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "csqrt":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "csqrt":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "csqrt_downward":
+double: 5
+float: 4
+idouble: 5
+ifloat: 4
+
+Function: Imaginary part of "csqrt_downward":
+double: 4
+float: 3
+idouble: 4
+ifloat: 3
+
+Function: Real part of "csqrt_towardzero":
+double: 4
+float: 3
+idouble: 4
+ifloat: 3
+
+Function: Imaginary part of "csqrt_towardzero":
+double: 4
+float: 3
+idouble: 4
+ifloat: 3
+
+Function: Real part of "csqrt_upward":
+double: 5
+float: 4
+idouble: 5
+ifloat: 4
+
+Function: Imaginary part of "csqrt_upward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: Real part of "ctan":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "ctan":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "ctan_downward":
+double: 6
+float: 5
+idouble: 6
+ifloat: 5
+
+Function: Imaginary part of "ctan_downward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "ctan_towardzero":
+double: 5
+float: 3
+idouble: 5
+ifloat: 3
+
+Function: Imaginary part of "ctan_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "ctan_upward":
+double: 2
+float: 4
+idouble: 2
+ifloat: 4
+
+Function: Imaginary part of "ctan_upward":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: Real part of "ctanh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "ctanh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "ctanh_downward":
+double: 4
+float: 2
+idouble: 4
+ifloat: 2
+
+Function: Imaginary part of "ctanh_downward":
+double: 6
+float: 5
+idouble: 6
+ifloat: 5
+
+Function: Real part of "ctanh_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "ctanh_towardzero":
+double: 5
+float: 3
+idouble: 5
+ifloat: 3
+
+Function: Real part of "ctanh_upward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "ctanh_upward":
+double: 2
+float: 3
+idouble: 2
+ifloat: 3
+
+Function: "erf":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "erf_downward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "erf_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "erf_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "erfc":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "erfc_downward":
+double: 5
+float: 6
+idouble: 5
+ifloat: 6
+
+Function: "erfc_towardzero":
+double: 3
+float: 4
+idouble: 3
+ifloat: 4
+
+Function: "erfc_upward":
+double: 5
+float: 6
+idouble: 5
+ifloat: 6
+
+Function: "exp10":
+double: 2
+idouble: 2
+
+Function: "exp10_downward":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: "exp10_towardzero":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: "exp10_upward":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: "exp2":
+double: 1
+idouble: 1
+
+Function: "exp2_downward":
+double: 1
+idouble: 1
+
+Function: "exp2_towardzero":
+double: 1
+idouble: 1
+
+Function: "exp2_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "exp_downward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "exp_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "exp_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "expm1":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "expm1_downward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "expm1_towardzero":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "expm1_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "gamma":
+double: 4
+float: 3
+idouble: 4
+ifloat: 3
+
+Function: "gamma_downward":
+double: 5
+float: 4
+idouble: 5
+ifloat: 4
+
+Function: "gamma_towardzero":
+double: 5
+float: 4
+idouble: 5
+ifloat: 4
+
+Function: "gamma_upward":
+double: 5
+float: 5
+idouble: 5
+ifloat: 5
+
+Function: "hypot":
+double: 1
+idouble: 1
+
+Function: "hypot_downward":
+double: 1
+idouble: 1
+
+Function: "hypot_towardzero":
+double: 1
+idouble: 1
+
+Function: "hypot_upward":
+double: 1
+idouble: 1
+
+Function: "j0":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "j0_downward":
+double: 2
+float: 4
+idouble: 2
+ifloat: 4
+
+Function: "j0_towardzero":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "j0_upward":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "j1":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "j1_downward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "j1_towardzero":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "j1_upward":
+double: 3
+float: 5
+idouble: 3
+ifloat: 5
+
+Function: "jn":
+double: 4
+float: 4
+idouble: 4
+ifloat: 4
+
+Function: "jn_downward":
+double: 5
+float: 5
+idouble: 5
+ifloat: 5
+
+Function: "jn_towardzero":
+double: 5
+float: 5
+idouble: 5
+ifloat: 5
+
+Function: "jn_upward":
+double: 5
+float: 5
+idouble: 5
+ifloat: 5
+
+Function: "lgamma":
+double: 4
+float: 3
+idouble: 4
+ifloat: 3
+
+Function: "lgamma_downward":
+double: 5
+float: 4
+idouble: 5
+ifloat: 4
+
+Function: "lgamma_towardzero":
+double: 5
+float: 4
+idouble: 5
+ifloat: 4
+
+Function: "lgamma_upward":
+double: 5
+float: 5
+idouble: 5
+ifloat: 5
+
+Function: "log10":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "log10_downward":
+double: 2
+float: 3
+idouble: 2
+ifloat: 3
+
+Function: "log10_towardzero":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: "log10_upward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "log1p":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "log1p_downward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "log1p_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "log1p_upward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "log2":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: "log2_downward":
+double: 3
+idouble: 3
+
+Function: "log2_towardzero":
+double: 2
+idouble: 2
+
+Function: "log2_upward":
+double: 3
+idouble: 3
+
+Function: "pow":
+double: 1
+idouble: 1
+
+Function: "pow_downward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "pow_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "pow_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "sin":
+double: 1
+idouble: 1
+
+Function: "sin_downward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "sin_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "sin_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "sincos":
+double: 1
+idouble: 1
+
+Function: "sincos_downward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "sincos_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "sincos_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "sinh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "sinh_downward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "sinh_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "sinh_upward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "tan":
+float: 1
+ifloat: 1
+
+Function: "tan_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "tan_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "tan_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "tanh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "tanh_downward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "tanh_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "tanh_upward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "tgamma":
+double: 5
+float: 4
+idouble: 5
+ifloat: 4
+
+Function: "tgamma_downward":
+double: 5
+float: 5
+idouble: 5
+ifloat: 5
+
+Function: "tgamma_towardzero":
+double: 5
+float: 4
+idouble: 5
+ifloat: 4
+
+Function: "tgamma_upward":
+double: 4
+float: 4
+idouble: 4
+ifloat: 4
+
+Function: "y0":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: "y0_downward":
+double: 3
+float: 4
+idouble: 3
+ifloat: 4
+
+Function: "y0_towardzero":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "y0_upward":
+double: 3
+float: 5
+idouble: 3
+ifloat: 5
+
+Function: "y1":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "y1_downward":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "y1_towardzero":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "y1_upward":
+double: 7
+float: 2
+idouble: 7
+ifloat: 2
+
+Function: "yn":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "yn_downward":
+double: 3
+float: 4
+idouble: 3
+ifloat: 4
+
+Function: "yn_towardzero":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "yn_upward":
+double: 4
+float: 5
+idouble: 4
+ifloat: 5
+
+# end of automatic generation
diff --git a/sysdeps/csky/fpu/libm-test-ulps-name b/sysdeps/csky/fpu/libm-test-ulps-name
new file mode 100644
index 0000000..236b0fb
--- /dev/null
+++ b/sysdeps/csky/fpu/libm-test-ulps-name
@@ -0,0 +1 @@
+CSKY
diff --git a/sysdeps/csky/math-tests-trap.h b/sysdeps/csky/math-tests-trap.h
new file mode 100644
index 0000000..07e5fd4
--- /dev/null
+++ b/sysdeps/csky/math-tests-trap.h
@@ -0,0 +1,26 @@
+/* Configuration for math tests: support for enabling exception traps.
+ C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef CSKY_MATH_TESTS_TRAP_H
+#define CSKY_MATH_TESTS_TRAP_H 1
+
+/* Trapping exceptions are not supported on C-SKY. */
+#define EXCEPTION_ENABLE_SUPPORTED(EXCEPT) ((EXCEPT) == 0)
+
+#endif /* math-tests-trap.h. */
diff --git a/sysdeps/csky/nofpu/Implies b/sysdeps/csky/nofpu/Implies
new file mode 100644
index 0000000..abcbadb
--- /dev/null
+++ b/sysdeps/csky/nofpu/Implies
@@ -0,0 +1 @@
+ieee754/soft-fp
diff --git a/sysdeps/csky/nofpu/libm-test-ulps b/sysdeps/csky/nofpu/libm-test-ulps
new file mode 100644
index 0000000..4e0cee8
--- /dev/null
+++ b/sysdeps/csky/nofpu/libm-test-ulps
@@ -0,0 +1,1694 @@
+# Begin of automatic generation
+
+# Maximal error of functions:
+Function: "acos":
+float: 1
+ifloat: 1
+
+Function: "acos_downward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "acos_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "acos_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "acosh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "acosh_downward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "acosh_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "acosh_upward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "asin":
+float: 1
+ifloat: 1
+
+Function: "asin_downward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "asin_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "asin_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "asinh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "asinh_downward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "asinh_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "asinh_upward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "atan":
+float: 1
+ifloat: 1
+
+Function: "atan2":
+float: 1
+ifloat: 1
+
+Function: "atan2_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "atan2_towardzero":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "atan2_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "atan_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "atan_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "atan_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "atanh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "atanh_downward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "atanh_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "atanh_upward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "cabs":
+double: 1
+idouble: 1
+
+Function: "cabs_downward":
+double: 1
+idouble: 1
+
+Function: "cabs_towardzero":
+double: 1
+idouble: 1
+
+Function: "cabs_upward":
+double: 1
+idouble: 1
+
+Function: Real part of "cacos":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "cacos":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "cacos_downward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "cacos_downward":
+double: 5
+float: 3
+idouble: 5
+ifloat: 3
+
+Function: Real part of "cacos_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "cacos_towardzero":
+double: 5
+float: 3
+idouble: 5
+ifloat: 3
+
+Function: Real part of "cacos_upward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "cacos_upward":
+double: 4
+float: 4
+idouble: 4
+ifloat: 4
+
+Function: Real part of "cacosh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "cacosh":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "cacosh_downward":
+double: 5
+float: 3
+idouble: 5
+ifloat: 3
+
+Function: Imaginary part of "cacosh_downward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "cacosh_towardzero":
+double: 5
+float: 3
+idouble: 5
+ifloat: 3
+
+Function: Imaginary part of "cacosh_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "cacosh_upward":
+double: 4
+float: 4
+idouble: 4
+ifloat: 4
+
+Function: Imaginary part of "cacosh_upward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "carg":
+float: 1
+ifloat: 1
+
+Function: "carg_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "carg_towardzero":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "carg_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "casin":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "casin":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "casin_downward":
+double: 3
+float: 1
+idouble: 3
+ifloat: 1
+
+Function: Imaginary part of "casin_downward":
+double: 5
+float: 3
+idouble: 5
+ifloat: 3
+
+Function: Real part of "casin_towardzero":
+double: 3
+float: 1
+idouble: 3
+ifloat: 1
+
+Function: Imaginary part of "casin_towardzero":
+double: 5
+float: 3
+idouble: 5
+ifloat: 3
+
+Function: Real part of "casin_upward":
+double: 2
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+ifloat: 1
+
+Function: "pow_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "sin":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "sin_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "sin_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "sin_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "sincos":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "sincos_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "sincos_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "sincos_upward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "sinh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "sinh_downward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "sinh_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "sinh_upward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "tan":
+float: 1
+ifloat: 1
+
+Function: "tan_downward":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "tan_towardzero":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "tan_upward":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "tanh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "tanh_downward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "tanh_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "tanh_upward":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "tgamma":
+double: 5
+float: 4
+idouble: 5
+ifloat: 4
+
+Function: "tgamma_downward":
+double: 5
+float: 5
+idouble: 5
+ifloat: 5
+
+Function: "tgamma_towardzero":
+double: 5
+float: 4
+idouble: 5
+ifloat: 4
+
+Function: "tgamma_upward":
+double: 4
+float: 4
+idouble: 4
+ifloat: 4
+
+Function: "y0":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: "y0_downward":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "y0_towardzero":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "y0_upward":
+double: 3
+float: 4
+idouble: 3
+ifloat: 4
+
+Function: "y1":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "y1_downward":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "y1_towardzero":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "y1_upward":
+double: 7
+float: 2
+idouble: 7
+ifloat: 2
+
+Function: "yn":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "yn_downward":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "yn_towardzero":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: "yn_upward":
+double: 4
+float: 4
+idouble: 4
+ifloat: 4
+
+# end of automatic generation
diff --git a/sysdeps/csky/nofpu/libm-test-ulps-name b/sysdeps/csky/nofpu/libm-test-ulps-name
new file mode 100644
index 0000000..d9b35a9
--- /dev/null
+++ b/sysdeps/csky/nofpu/libm-test-ulps-name
@@ -0,0 +1 @@
+CSKY soft-float
diff --git a/sysdeps/csky/nofpu/math-tests-exceptions.h b/sysdeps/csky/nofpu/math-tests-exceptions.h
new file mode 100644
index 0000000..842e081
--- /dev/null
+++ b/sysdeps/csky/nofpu/math-tests-exceptions.h
@@ -0,0 +1,27 @@
+/* Configuration for math tests: support for exceptions. C-SKY no-FPU version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef CSKY_NOFPU_MATH_TESTS_EXCEPTIONS_H
+#define CSKY_NOFPU_MATH_TESTS_EXCEPTIONS_H
+
+/* C-SKY soft float does not support exceptions. */
+# define EXCEPTION_TESTS_float 0
+# define EXCEPTION_TESTS_double 0
+# define EXCEPTION_TESTS_long_double 0
+
+#endif /* math-tests-exceptions.h. */
diff --git a/sysdeps/csky/nofpu/math-tests-rounding.h b/sysdeps/csky/nofpu/math-tests-rounding.h
new file mode 100644
index 0000000..d3c9795
--- /dev/null
+++ b/sysdeps/csky/nofpu/math-tests-rounding.h
@@ -0,0 +1,27 @@
+/* Configuration for math tests: rounding mode support. C-SKY no-FPU version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef CSKY_NOFPU_MATH_TESTS_ROUNDING_H
+#define CSKY_NOFPU_MATH_TESTS_ROUNDING_H 1
+
+/* C-SKY soft float does not support rounding modes. */
+# define ROUNDING_TESTS_float(MODE) ((MODE) == FE_TONEAREST)
+# define ROUNDING_TESTS_double(MODE) ((MODE) == FE_TONEAREST)
+# define ROUNDING_TESTS_long_double(MODE) ((MODE) == FE_TONEAREST)
+
+#endif /* math-tests-rounding.h. */
diff --git a/sysdeps/csky/sfp-machine.h b/sysdeps/csky/sfp-machine.h
new file mode 100644
index 0000000..69c6f33
--- /dev/null
+++ b/sysdeps/csky/sfp-machine.h
@@ -0,0 +1,50 @@
+#define _FP_W_TYPE_SIZE 32
+#define _FP_W_TYPE unsigned long
+#define _FP_WS_TYPE signed long
+#define _FP_I_TYPE long
+
+#define _FP_MUL_MEAT_S(R,X,Y) \
+ _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_D(R,X,Y) \
+ _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_Q(R,X,Y) \
+ _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_MUL_MEAT_DW_S(R,X,Y) \
+ _FP_MUL_MEAT_DW_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_DW_D(R,X,Y) \
+ _FP_MUL_MEAT_DW_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_DW_Q(R,X,Y) \
+ _FP_MUL_MEAT_DW_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_loop(S,R,X,Y)
+#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y)
+#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
+
+#define _FP_NANFRAC_S _FP_QNANBIT_S
+#define _FP_NANFRAC_D _FP_QNANBIT_D, 0
+#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0, 0, 0
+#define _FP_NANSIGN_S 0
+#define _FP_NANSIGN_D 0
+#define _FP_NANSIGN_Q 0
+
+#define _FP_KEEPNANFRACP 1
+#define _FP_QNANNEGATEDP 0
+
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
+ do { \
+ if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \
+ && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \
+ { \
+ R##_s = Y##_s; \
+ _FP_FRAC_COPY_##wc(R,Y); \
+ } \
+ else \
+ { \
+ R##_s = X##_s; \
+ _FP_FRAC_COPY_##wc(R,X); \
+ } \
+ R##_c = FP_CLS_NAN; \
+ } while (0)
+
+#define _FP_TININESS_AFTER_ROUNDING 0
diff --git a/sysdeps/csky/tininess.h b/sysdeps/csky/tininess.h
new file mode 100644
index 0000000..1db3779
--- /dev/null
+++ b/sysdeps/csky/tininess.h
@@ -0,0 +1 @@
+#define TININESS_AFTER_ROUNDING 1
--
2.7.4
^ permalink raw reply [flat|nested] 57+ messages in thread* Re: [PATCH v4 03/13] C-SKY: Math support
2018-09-12 2:56 ` [PATCH v4 03/13] C-SKY: Math support Mao Han
@ 2018-09-17 21:49 ` Joseph Myers
2018-09-18 6:05 ` Mao Han
0 siblings, 1 reply; 57+ messages in thread
From: Joseph Myers @ 2018-09-17 21:49 UTC (permalink / raw)
To: Mao Han; +Cc: libc-alpha, c-sky_gcc_upstream, gnu-csky
On Wed, 12 Sep 2018, Mao Han wrote:
> * sysdeps/csky/fpu/fpu_control.h: Likewise.
fpu_control.h is an installed header, and we generally want installed
headers to be the same between different multilibs for the same compiler,
so that a single include directory can be shared between multilibs.
Thus, it should not be in the fpu/ directory; instead, it should contain
preprocessor conditionals to make most of the contents trivial in the
soft-float case (as done for arm / m68k / mips / riscv / sh).
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 03/13] C-SKY: Math support
2018-09-17 21:49 ` Joseph Myers
@ 2018-09-18 6:05 ` Mao Han
0 siblings, 0 replies; 57+ messages in thread
From: Mao Han @ 2018-09-18 6:05 UTC (permalink / raw)
To: Joseph Myers; +Cc: c-sky_gcc_upstream, gnu-csky, libc-alpha
On Mon, Sep 17, 2018 at 09:49:18PM +0000, Joseph Myers wrote:
> On Wed, 12 Sep 2018, Mao Han wrote:
>
> > * sysdeps/csky/fpu/fpu_control.h: Likewise.
>
> fpu_control.h is an installed header, and we generally want installed
> headers to be the same between different multilibs for the same compiler,
> so that a single include directory can be shared between multilibs.
>
> Thus, it should not be in the fpu/ directory; instead, it should contain
> preprocessor conditionals to make most of the contents trivial in the
> soft-float case (as done for arm / m68k / mips / riscv / sh).
>
OK. I'll put it outside and make it conditional.
Thanks,
Han Mao
^ permalink raw reply [flat|nested] 57+ messages in thread
* [PATCH v4 02/13] C-SKY: TLS support
[not found] ` <cover.1536720821.git.han_mao@c-sky.com>
` (2 preceding siblings ...)
2018-09-12 2:56 ` [PATCH v4 03/13] C-SKY: Math support Mao Han
@ 2018-09-12 2:56 ` Mao Han
2018-09-12 2:57 ` [PATCH v4 08/13] C-SKY: Linux Startup and Dynamic Loading Code Mao Han
` (8 subsequent siblings)
12 siblings, 0 replies; 57+ messages in thread
From: Mao Han @ 2018-09-12 2:56 UTC (permalink / raw)
To: libc-alpha; +Cc: Mao Han, c-sky_gcc_upstream, gnu-csky
This patch implements TLS support for C-SKY. We support all four
standard TLS addressing modes (LE, IE, LD, and GD) when running on
Linux via NPTL.
* sysdeps/csky/abiv2/tls-macros.h: New file.
* sysdeps/csky/dl-tls.h: Likewise.
* sysdeps/csky/libc-tls.c: Likewise.
* sysdeps/csky/nptl/tcb-offsets.sym: Likewise.
* sysdeps/csky/nptl/tls.h: Likewise.
---
sysdeps/csky/abiv2/tls-macros.h | 55 ++++++++++++++
sysdeps/csky/dl-tls.h | 26 +++++++
sysdeps/csky/libc-tls.c | 32 ++++++++
sysdeps/csky/nptl/tcb-offsets.sym | 10 +++
sysdeps/csky/nptl/tls.h | 156 ++++++++++++++++++++++++++++++++++++++
5 files changed, 279 insertions(+)
create mode 100644 sysdeps/csky/abiv2/tls-macros.h
create mode 100644 sysdeps/csky/dl-tls.h
create mode 100644 sysdeps/csky/libc-tls.c
create mode 100644 sysdeps/csky/nptl/tcb-offsets.sym
create mode 100644 sysdeps/csky/nptl/tls.h
diff --git a/sysdeps/csky/abiv2/tls-macros.h b/sysdeps/csky/abiv2/tls-macros.h
new file mode 100644
index 0000000..59af059
--- /dev/null
+++ b/sysdeps/csky/abiv2/tls-macros.h
@@ -0,0 +1,55 @@
+/* Macros for accessing thread-local storage. C-SKY ABIV2 version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+# define TLS_LE(x) \
+ ({ int *__result; \
+ __asm__ ("lrw %0, " #x "@TPOFF\n\t" \
+ "add %0, tls, %0" \
+ : "=&r" (__result)); \
+ __result; })
+
+# define TLS_IE(x) \
+ ({ int *__result; \
+ __asm__ ("grs a1, 1f\n" \
+ "1:\tlrw %0, " #x "@GOTTPOFF\n\t" \
+ "ldr.w %0, (a1, %0 << 0)\n\t" \
+ "add %0, tls, %0" \
+ : "=&r" (__result): : "a1"); \
+ __result; })
+
+# define TLS_LD(x) \
+ ({ char *__result; \
+ int __offset; \
+ extern void *__tls_get_addr (void *); \
+ __asm__ ("grs a1, 1f\n" \
+ "1:\tlrw %0, " #x "@TLSLDM32;\n\t" \
+ "add %0, a1, %0" \
+ : "=r" (__result) : : "a1"); \
+ __result = (char *)__tls_get_addr (__result); \
+ __asm__ ("lrw %0, " #x "@TLSLDO32" \
+ : "=r" (__offset)); \
+ (int *) (__result + __offset); })
+
+# define TLS_GD(x) \
+ ({ int *__result; \
+ extern void *__tls_get_addr (void *); \
+ __asm__ ("grs a1, 1f\n" \
+ "1:\tlrw %0, " #x "@TLSGD32\n\t" \
+ "add %0, a1, %0" \
+ : "=r" (__result) : : "a1"); \
+ (int *)__tls_get_addr (__result); })
diff --git a/sysdeps/csky/dl-tls.h b/sysdeps/csky/dl-tls.h
new file mode 100644
index 0000000..d44fc18
--- /dev/null
+++ b/sysdeps/csky/dl-tls.h
@@ -0,0 +1,26 @@
+/* Thread-local storage handling in the ELF dynamic linker. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Type used for the representation of TLS information in the GOT. */
+typedef struct
+{
+ unsigned long int ti_module;
+ unsigned long int ti_offset;
+} tls_index;
+
+extern void *__tls_get_addr (tls_index *ti);
diff --git a/sysdeps/csky/libc-tls.c b/sysdeps/csky/libc-tls.c
new file mode 100644
index 0000000..30baf62
--- /dev/null
+++ b/sysdeps/csky/libc-tls.c
@@ -0,0 +1,32 @@
+/* Thread-local storage handling in the ELF dynamic linker. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <csu/libc-tls.c>
+#include <dl-tls.h>
+
+/* On C-SKY, linker optimizations are not required, so __tls_get_addr
+ can be called even in statically linked binaries. In this case module
+ must be always 1 and PT_TLS segment exist in the binary, otherwise it
+ would not link. */
+
+void *
+__tls_get_addr (tls_index *ti)
+{
+ dtv_t *dtv = THREAD_DTV ();
+ return (char *) dtv[1].pointer.val + ti->ti_offset;
+}
diff --git a/sysdeps/csky/nptl/tcb-offsets.sym b/sysdeps/csky/nptl/tcb-offsets.sym
new file mode 100644
index 0000000..f110520
--- /dev/null
+++ b/sysdeps/csky/nptl/tcb-offsets.sym
@@ -0,0 +1,10 @@
+#include <sysdep.h>
+#include <tls.h>
+
+--
+
+-- Derive offsets relative to the thread register.
+#define thread_offsetof(mem) (long)(offsetof (struct pthread, mem) - sizeof (struct pthread))
+
+MULTIPLE_THREADS_OFFSET thread_offsetof (header.multiple_threads)
+TID_OFFSET thread_offsetof (tid)
diff --git a/sysdeps/csky/nptl/tls.h b/sysdeps/csky/nptl/tls.h
new file mode 100644
index 0000000..14dbf94
--- /dev/null
+++ b/sysdeps/csky/nptl/tls.h
@@ -0,0 +1,156 @@
+/* Definitions for thread-local data handling. NPTL/C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _TLS_H
+#define _TLS_H 1
+
+#ifndef __ASSEMBLER__
+
+# include <stdbool.h>
+# include <stddef.h>
+# include <stdint.h>
+# include <dl-dtv.h>
+
+/* Define r31 as thread pointer register. */
+# define READ_THREAD_POINTER() \
+ ({ void *__result; \
+ __asm__ __volatile__ ("mov %0, r31" \
+ : "=r" (__result)); \
+ __result; })
+
+#else
+# include <tcb-offsets.h>
+/* Define r31 as thread pointer register. */
+# define READ_THREAD_POINTER() \
+ mov r0, r31;
+#endif /* __ASSEMBLER__ */
+
+#ifndef __ASSEMBLER__
+
+/* Get system call information. */
+# include <sysdep.h>
+
+/* The TP points to the start of the thread blocks. */
+# define TLS_DTV_AT_TP 1
+# define TLS_TCB_AT_TP 0
+
+/* Get the thread descriptor definition. */
+# include <nptl/descr.h>
+
+typedef struct
+{
+ dtv_t *dtv;
+ void *private;
+} tcbhead_t;
+
+/* This is the size of the initial TCB. */
+# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
+
+/* Alignment requirements for the initial TCB. */
+# define TLS_INIT_TCB_ALIGN 8
+
+/* This is the size of the TCB. */
+# define TLS_TCB_SIZE sizeof (tcbhead_t)
+
+/* Alignment requirements for the TCB. */
+# define TLS_TCB_ALIGN 8
+
+/* This is the size we need before TCB. */
+# define TLS_PRE_TCB_SIZE sizeof (struct pthread)
+
+/* The thread pointer tp points to the end of the TCB.
+ The pthread_descr structure is immediately in front of the TCB. */
+# define TLS_TCB_OFFSET 0
+
+/* Install the dtv pointer. The pointer passed is to the element with
+ index -1 which contain the length. */
+# define INSTALL_DTV(tcbp, dtvp) \
+ (((tcbhead_t *) (tcbp))->dtv = (dtvp) + 1)
+
+/* Install new dtv for current thread. */
+# define INSTALL_NEW_DTV(dtv) \
+ (THREAD_DTV() = (dtv))
+
+/* Return dtv of given thread descriptor. */
+# define GET_DTV(tcbp) \
+ (((tcbhead_t *) (tcbp))->dtv)
+
+# define TLS_DEFINE_INIT_TP(tp, pd) void *tp = (pd) + 1
+
+/* Code to initially initialize the thread pointer. This might need
+ special attention since 'errno' is not yet available and if the
+ operation can cause a failure 'errno' must not be touched. */
+# define TLS_INIT_TP(tcbp) \
+ ({ INTERNAL_SYSCALL_DECL (err); \
+ long result_var; \
+ result_var = INTERNAL_SYSCALL (set_thread_area, err, 1, \
+ (char *) (tcbp) + TLS_TCB_OFFSET); \
+ INTERNAL_SYSCALL_ERROR_P (result_var, err) \
+ ? "unknown error" : NULL; })
+
+/* Return the address of the dtv for the current thread. */
+# define THREAD_DTV() \
+ (((tcbhead_t *) (READ_THREAD_POINTER () - TLS_TCB_OFFSET))->dtv)
+
+/* Return the thread descriptor for the current thread. */
+# undef THREAD_SELF
+# define THREAD_SELF \
+ ((struct pthread *) (READ_THREAD_POINTER () \
+ - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE))
+
+/* Magic for libthread_db to know how to do THREAD_SELF. */
+# define DB_THREAD_SELF \
+ CONST_THREAD_AREA (32, sizeof (struct pthread))
+
+/* Access to data in the thread descriptor is easy. */
+# define THREAD_GETMEM(descr, member) \
+ descr->member
+# define THREAD_GETMEM_NC(descr, member, idx) \
+ descr->member[idx]
+# define THREAD_SETMEM(descr, member, value) \
+ descr->member = (value)
+# define THREAD_SETMEM_NC(descr, member, idx, value) \
+ descr->member[idx] = (value)
+
+/* Get and set the global scope generation counter in struct pthread. */
+# define THREAD_GSCOPE_IN_TCB 1
+# define THREAD_GSCOPE_FLAG_UNUSED 0
+# define THREAD_GSCOPE_FLAG_USED 1
+# define THREAD_GSCOPE_FLAG_WAIT 2
+# define THREAD_GSCOPE_RESET_FLAG() \
+ do \
+ { int __res \
+ = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
+ THREAD_GSCOPE_FLAG_UNUSED); \
+ if (__res == THREAD_GSCOPE_FLAG_WAIT) \
+ lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \
+ } \
+ while (0)
+# define THREAD_GSCOPE_SET_FLAG() \
+ do \
+ { \
+ THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \
+ atomic_write_barrier (); \
+ } \
+ while (0)
+# define THREAD_GSCOPE_WAIT() \
+ GL(dl_wait_lookup_done) ()
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* tls.h */
--
2.7.4
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v4 08/13] C-SKY: Linux Startup and Dynamic Loading Code
[not found] ` <cover.1536720821.git.han_mao@c-sky.com>
` (3 preceding siblings ...)
2018-09-12 2:56 ` [PATCH v4 02/13] C-SKY: TLS support Mao Han
@ 2018-09-12 2:57 ` Mao Han
2018-09-12 2:57 ` [PATCH v4 13/13] C-SKY: Skeleton documentation Mao Han
` (7 subsequent siblings)
12 siblings, 0 replies; 57+ messages in thread
From: Mao Han @ 2018-09-12 2:57 UTC (permalink / raw)
To: libc-alpha; +Cc: Mao Han, c-sky_gcc_upstream, gnu-csky
This contains the Linux-specific code for loading programs on C-SKY.
* sysdeps/csky/dl-machine.h: New file.
* sysdeps/csky/dl-procinfo.c: Likewise.
* sysdeps/csky/dl-procinfo.h: Likewise.
* sysdeps/csky/dl-sysdep.h: Likewise.
* sysdeps/csky/ldsodefs.h: Likewise.
* sysdeps/csky/linkmap.h: Likewise.
* sysdeps/csky/sotruss-lib.c: Likewise.
* sysdeps/csky/tst-audit.h: Likewise.
* sysdeps/unix/sysv/linux/csky/ldconfig.h: Likewise.
---
sysdeps/csky/dl-machine.h | 362 ++++++++++++++++++++++++++++++++
sysdeps/csky/dl-procinfo.c | 62 ++++++
sysdeps/csky/dl-procinfo.h | 59 ++++++
sysdeps/csky/dl-sysdep.h | 23 ++
sysdeps/csky/ldsodefs.h | 42 ++++
sysdeps/csky/linkmap.h | 4 +
sysdeps/csky/sotruss-lib.c | 49 +++++
sysdeps/csky/tst-audit.h | 23 ++
sysdeps/unix/sysv/linux/csky/ldconfig.h | 31 +++
9 files changed, 655 insertions(+)
create mode 100644 sysdeps/csky/dl-machine.h
create mode 100644 sysdeps/csky/dl-procinfo.c
create mode 100644 sysdeps/csky/dl-procinfo.h
create mode 100644 sysdeps/csky/dl-sysdep.h
create mode 100644 sysdeps/csky/ldsodefs.h
create mode 100644 sysdeps/csky/linkmap.h
create mode 100644 sysdeps/csky/sotruss-lib.c
create mode 100644 sysdeps/csky/tst-audit.h
create mode 100644 sysdeps/unix/sysv/linux/csky/ldconfig.h
diff --git a/sysdeps/csky/dl-machine.h b/sysdeps/csky/dl-machine.h
new file mode 100644
index 0000000..451c8f7
--- /dev/null
+++ b/sysdeps/csky/dl-machine.h
@@ -0,0 +1,362 @@
+/* Machine-dependent ELF dynamic relocation inline functions. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef dl_machine_h
+#define dl_machine_h
+
+#define ELF_MACHINE_NAME "csky"
+
+#include <sys/param.h>
+#include <sysdep.h>
+#include <dl-tls.h>
+
+/* Return nonzero if ELF header is compatible with the running host. */
+static inline int
+elf_machine_matches_host (const Elf32_Ehdr *ehdr)
+{
+ return ehdr->e_machine == EM_CSKY;
+}
+
+/* Return the link-time address of _DYNAMIC.
+ This must be inlined in a function which uses global data. */
+static inline Elf32_Addr
+elf_machine_dynamic (void)
+{
+ register Elf32_Addr *got __asm__ ("gb");
+ return *got;
+}
+
+/* Return the run-time load address ,of the shared object. */
+static inline Elf32_Addr
+elf_machine_load_address (void)
+{
+ extern Elf32_Addr __dl_start (void *) asm ("_dl_start");
+ Elf32_Addr got_addr = (Elf32_Addr) &__dl_start;
+ Elf32_Addr pcrel_addr;
+ asm ("grs %0,_dl_start\n" : "=r" (pcrel_addr));
+
+ return pcrel_addr - got_addr;
+}
+
+
+/* Set up the loaded object described by L so its unrelocated PLT
+ entries will jump to the on-demand fixup code in dl-runtime.c. */
+
+static inline int __attribute__ ((always_inline))
+elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
+{
+ Elf32_Addr *got;
+ extern void _dl_runtime_resolve (Elf32_Word);
+
+ if (l->l_info[DT_JMPREL] && lazy)
+ {
+ /* The GOT entries for functions in the PLT have not yet been
+ filled in. Their initial contents will arrange when called
+ to push an offset into the .rela.plt section, push
+ _GLOBAL_OFFSET_TABLE_[1], and then jump to
+ _GLOBAL_OFFSET_TABLE_[2]. */
+ got = (Elf32_Addr *) D_PTR (l, l_info[DT_PLTGOT]);
+
+ if (got[1])
+ l->l_mach.plt = got[1] + l->l_addr;
+ got[1] = (Elf32_Addr) l; /* Identify this shared object. */
+
+ /* The got[2] entry contains the address of a function which gets
+ called to get the address of a so far unresolved function and
+ jump to it. The profiling extension of the dynamic linker allows
+ to intercept the calls to collect information. In this case we
+ don't store the address in the GOT so that all future calls also
+ end in this function. */
+ got[2] = (Elf32_Addr) &_dl_runtime_resolve;
+ }
+ return lazy;
+}
+
+/* Mask identifying addresses reserved for the user program,
+ where the dynamic linker should not map anything. */
+#define ELF_MACHINE_USER_ADDRESS_MASK 0x80000000UL
+
+/* Initial entry point code for the dynamic linker.
+ The C function `_dl_start' is the real entry point;
+ its return value is the user program's entry point. */
+#define RTLD_START asm ("\
+.text\n\
+.globl _start\n\
+.type _start, @function\n\
+.globl _dl_start_user\n\
+.type _dl_start_user, @function\n\
+_start:\n\
+ grs gb, .Lgetpc1\n\
+.Lgetpc1:\n\
+ lrw t0, .Lgetpc1@GOTPC\n\
+ addu gb, t0\n\
+ mov a0, sp\n\
+ lrw t1, _dl_start@GOTOFF\n\
+ addu t1, gb\n\
+ jsr t1\n\
+_dl_start_user:\n\
+ /* get _dl_skip_args */ \n\
+ lrw r11, _dl_skip_args@GOTOFF\n\
+ addu r11, gb\n\
+ ldw r11, (r11, 0)\n\
+ /* store program entry address in r11 */ \n\
+ mov r10, a0\n\
+ /* Get argc */\n\
+ ldw a1, (sp, 0)\n\
+ /* Get **argv */\n\
+ mov a2, sp\n\
+ addi a2, 4\n\
+ cmpnei r11, 0\n\
+ bt .L_fixup_stack\n\
+.L_done_fixup:\n\
+ mov a3, a1\n\
+ lsli a3, 2\n\
+ add a3, a2\n\
+ addi a3, 4\n\
+ lrw a0, _rtld_local@GOTOFF\n\
+ addu a0, gb\n\
+ ldw a0, (a0, 0)\n\
+ lrw t1, _dl_init@PLT\n\
+ addu t1, gb\n\
+ ldw t1, (t1)\n\
+ jsr t1\n\
+ lrw a0, _dl_fini@GOTOFF\n\
+ addu a0, gb\n\
+ jmp r10\n\
+.L_fixup_stack:\n\
+ subu a1, r11\n\
+ lsli r11, 2\n\
+ addu sp, r11\n\
+ stw a1, (sp, 0)\n\
+ mov a2, sp\n\
+ addi a2, 4\n\
+ lrw a3, _dl_argv@GOTOFF\n\
+ addu a3, gb\n\
+ stw a2, (a3, 0)\n\
+ br .L_done_fixup\n\
+");
+
+/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry or
+ TLS variable, so undefined references should not be allowed to
+ define the value.
+ ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one
+ of the main executable's symbols, as for a COPY reloc. */
+#ifndef RTLD_BOOTSTRAP
+# define elf_machine_type_class(type) \
+ ((((type) == R_CKCORE_JUMP_SLOT || (type) == R_CKCORE_TLS_DTPMOD32 \
+ || (type) == R_CKCORE_TLS_DTPOFF32 || (type) == R_CKCORE_TLS_TPOFF32) \
+ * ELF_RTYPE_CLASS_PLT) \
+ | (((type) == R_CKCORE_COPY) * ELF_RTYPE_CLASS_COPY))
+#else
+# define elf_machine_type_class(type) \
+ ((((type) == R_CKCORE_JUMP_SLOT \
+ | (((type) == R_CKCORE_COPY) * ELF_RTYPE_CLASS_COPY))
+#endif
+
+/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */
+#define ELF_MACHINE_JMP_SLOT R_CKCORE_JUMP_SLOT
+
+/* C-SKY never uses Elf32_Rel relocations. */
+#define ELF_MACHINE_NO_REL 1
+#define ELF_MACHINE_NO_RELA 0
+
+/* We define an initialization functions. This is called very early in
+ _dl_sysdep_start. */
+#define DL_PLATFORM_INIT dl_platform_init ()
+
+static inline void __attribute__ ((unused))
+dl_platform_init (void)
+{
+ if (GLRO(dl_platform) != NULL && *GLRO(dl_platform) == '\0')
+ /* Avoid an empty string which would disturb us. */
+ GLRO(dl_platform) = NULL;
+}
+
+static inline Elf32_Addr
+elf_machine_fixup_plt (struct link_map *map, lookup_t t,
+ const ElfW(Sym) *refsym, const ElfW(Sym) *sym,
+ const Elf32_Rela *reloc,
+ Elf32_Addr *reloc_addr, Elf32_Addr value)
+{
+ return *reloc_addr = value;
+}
+
+/* Return the final value of a plt relocation. On the csky the JMP_SLOT
+ relocation ignores the addend. */
+static inline Elf32_Addr
+elf_machine_plt_value (struct link_map *map, const Elf32_Rela *reloc,
+ Elf32_Addr value)
+{
+ return value;
+}
+
+/* Names of the architecture-specific auditing callback functions. */
+#define ARCH_LA_PLTENTER csky_gnu_pltenter
+#define ARCH_LA_PLTEXIT csky_gnu_pltexit
+
+#endif /* !dl_machine_h */
+#ifdef RESOLVE_MAP
+
+/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
+ MAP is the object containing the reloc. */
+
+auto inline void __attribute__ ((unused, always_inline))
+elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
+ const Elf32_Sym *sym, const struct r_found_version *version,
+ void *const reloc_addr_arg, int skip_ifunc)
+{
+ Elf32_Addr *const reloc_addr = reloc_addr_arg;
+ const unsigned int r_type = ELF32_R_TYPE (reloc->r_info);
+ unsigned short __attribute__ ((unused)) *opcode16_addr;
+ Elf32_Addr __attribute__ ((unused)) insn_opcode = 0x0;
+
+ if (__builtin_expect (r_type == R_CKCORE_RELATIVE, 0))
+ *reloc_addr = map->l_addr + reloc->r_addend;
+ else
+ {
+ const Elf32_Sym *const refsym = sym;
+ struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
+ ElfW(Addr) value = SYMBOL_ADDRESS (sym_map, sym, true);
+ opcode16_addr = (unsigned short *)reloc_addr;
+
+ switch (r_type)
+ {
+ case R_CKCORE_COPY:
+ if (sym == NULL)
+ /* This can happen in trace mode if an object could not be
+ found. */
+ break;
+ if (sym->st_size > refsym->st_size
+ || (sym->st_size < refsym->st_size && GLRO(dl_verbose)))
+ {
+ const char *strtab;
+
+ strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
+ _dl_error_printf ("\
+%s: Symbol `%s' has different size in shared object, consider re-linking\n",
+ rtld_progname ?: "<program name unknown>",
+ strtab + refsym->st_name);
+ }
+ memcpy (reloc_addr_arg, (void *) value,
+ MIN (sym->st_size, refsym->st_size));
+ break;
+ case R_CKCORE_GLOB_DAT:
+ case R_CKCORE_JUMP_SLOT:
+ *reloc_addr = value;
+ break;
+ case R_CKCORE_ADDR32:
+ *reloc_addr = value + reloc->r_addend;
+ break;
+ case R_CKCORE_PCREL32:
+ *reloc_addr = value + reloc->r_addend - (Elf32_Addr) reloc_addr;
+ break;
+#if defined(__CK810__) || defined(__CK807__)
+ case R_CKCORE_ADDR_HI16:
+ insn_opcode = (*opcode16_addr << 16) | (*(opcode16_addr + 1));
+ insn_opcode = (insn_opcode & 0xffff0000)
+ | (((value + reloc->r_addend) >> 16) & 0xffff);
+ *(opcode16_addr++) = (unsigned short)(insn_opcode >> 16);
+ *opcode16_addr = (unsigned short)(insn_opcode & 0xffff);
+ break;
+ case R_CKCORE_ADDR_LO16:
+ insn_opcode = (*opcode16_addr << 16) | (*(opcode16_addr + 1));
+ insn_opcode = (insn_opcode & 0xffff0000)
+ | ((value + reloc->r_addend) & 0xffff);
+ *(opcode16_addr++) = (unsigned short)(insn_opcode >> 16);
+ *opcode16_addr = (unsigned short)(insn_opcode & 0xffff);
+ break;
+ case R_CKCORE_PCREL_IMM26BY2:
+ {
+ unsigned int offset = ((value + reloc->r_addend -
+ (unsigned int)reloc_addr) >> 1);
+ insn_opcode = (*opcode16_addr << 16) | (*(opcode16_addr + 1));
+ if (offset > 0x3ffffff){
+ const char *strtab;
+ strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
+
+ _dl_error_printf ("\
+%s:The reloc R_CKCORE_PCREL_IMM26BY2 cannot reach the symbol '%s'.\n",
+ rtld_progname ?: "<program name unknown>",
+ strtab + refsym->st_name);
+ break;
+ }
+ insn_opcode = (insn_opcode & ~0x3ffffff) | offset;
+ *(opcode16_addr++) = (unsigned short)(insn_opcode >> 16);
+ *opcode16_addr = (unsigned short)(insn_opcode & 0xffff);
+ break;
+ }
+ case R_CKCORE_PCREL_JSR_IMM26BY2:
+ break;
+#endif
+#ifndef RTLD_BOOTSTRAP
+ case R_CKCORE_TLS_DTPMOD32:
+ /* Get the information from the link map returned by the
+ resolv function. */
+ if (sym_map != NULL)
+ *reloc_addr = sym_map->l_tls_modid;
+ break;
+ case R_CKCORE_TLS_DTPOFF32:
+ if (sym != NULL)
+ *reloc_addr =(sym == NULL ? 0 : sym->st_value) + reloc->r_addend;
+ break;
+ case R_CKCORE_TLS_TPOFF32:
+ if (sym != NULL)
+ {
+ CHECK_STATIC_TLS (map, sym_map);
+ *reloc_addr = (sym->st_value + sym_map->l_tls_offset
+ + reloc->r_addend);
+ }
+ break;
+#endif /* !RTLD_BOOTSTRAP */
+ case R_CKCORE_NONE:
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+auto inline void __attribute__ ((unused, always_inline))
+elf_machine_rela_relative (Elf32_Addr l_addr, const Elf32_Rela *reloc,
+ void *const reloc_addr_arg)
+{
+ Elf32_Addr *const reloc_addr = reloc_addr_arg;
+ *reloc_addr = l_addr + reloc->r_addend;
+}
+
+auto inline void __attribute__ ((unused, always_inline))
+elf_machine_lazy_rel (struct link_map *map,
+ Elf32_Addr l_addr, const Elf32_Rela *reloc,
+ int skip_ifunc)
+{
+ Elf32_Addr *const reloc_addr = (void *) (l_addr + reloc->r_offset);
+ const unsigned int r_type = ELF32_R_TYPE (reloc->r_info);
+ if (ELF32_R_TYPE (reloc->r_info) == R_CKCORE_JUMP_SLOT)
+ {
+ /* Check for unexpected PLT reloc type. */
+ if (__builtin_expect (r_type == R_CKCORE_JUMP_SLOT, 1))
+ {
+ if (__builtin_expect (map->l_mach.plt, 0) == 0)
+ *reloc_addr = l_addr + reloc->r_addend;
+ else
+ *reloc_addr = map->l_mach.plt;
+ }
+ }
+}
+
+#endif /* RESOLVE_MAP */
diff --git a/sysdeps/csky/dl-procinfo.c b/sysdeps/csky/dl-procinfo.c
new file mode 100644
index 0000000..88f16d4
--- /dev/null
+++ b/sysdeps/csky/dl-procinfo.c
@@ -0,0 +1,62 @@
+/* Data for C-SKY version of processor capability information.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* This information must be kept in sync with the _DL_PLATFORM_COUNT
+ definitions in procinfo.h.
+
+ If anything should be added here check whether the size of each string
+ is still ok with the given array size.
+
+ All the #ifdefs in the definitions are quite irritating but
+ necessary if we want to avoid duplicating the information. There
+ are three different modes:
+
+ - PROCINFO_DECL is defined. This means we are only interested in
+ declarations.
+
+ - PROCINFO_DECL is not defined:
+
+ + if SHARED is defined the file is included in an array
+ initializer. The .element = { ... } syntax is needed.
+
+ + if SHARED is not defined a normal array initialization is
+ needed.
+ */
+
+#ifndef PROCINFO_CLASS
+# define PROCINFO_CLASS
+#endif
+
+#if !defined PROCINFO_DECL && defined SHARED
+ ._dl_csky_platforms
+#else
+PROCINFO_CLASS const char _dl_csky_platforms[4][6]
+#endif
+#ifndef PROCINFO_DECL
+= {
+ "ck610", "ck807", "ck810", "ck860"
+ }
+#endif
+#if !defined SHARED || defined PROCINFO_DECL
+;
+#else
+,
+#endif
+
+#undef PROCINFO_DECL
+#undef PROCINFO_CLASS
diff --git a/sysdeps/csky/dl-procinfo.h b/sysdeps/csky/dl-procinfo.h
new file mode 100644
index 0000000..4e7abe7
--- /dev/null
+++ b/sysdeps/csky/dl-procinfo.h
@@ -0,0 +1,59 @@
+/* C-SKY version of processor capability information handling macros.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#ifndef _DL_PROCINFO_H
+#define _DL_PROCINFO_H 1
+
+#include <ldsodefs.h>
+
+/* Mask to filter out platforms. */
+#define _DL_HWCAP_PLATFORM (-1ULL)
+
+#define _DL_PLATFORMS_COUNT 4
+
+static inline int
+__attribute__ ((unused, always_inline))
+_dl_string_platform (const char *str)
+{
+ int i;
+
+ if (str != NULL)
+ for (i = 0; i < _DL_PLATFORMS_COUNT; ++i)
+ {
+ if (strcmp (str, GLRO(dl_csky_platforms)[i]) == 0)
+ return i;
+ }
+ return -1;
+};
+
+/* We cannot provide a general printing function. */
+#define _dl_procinfo(word, val) -1
+
+/* There are no hardware capabilities defined. */
+#define _dl_hwcap_string(idx) ""
+
+/* By default there is no important hardware capability. */
+#define HWCAP_IMPORTANT (0)
+
+/* We don't have any hardware capabilities. */
+#define _DL_HWCAP_COUNT 0
+
+#define _dl_string_hwcap(str) (-1)
+
+#endif /* dl-procinfo.h */
diff --git a/sysdeps/csky/dl-sysdep.h b/sysdeps/csky/dl-sysdep.h
new file mode 100644
index 0000000..d5dd294
--- /dev/null
+++ b/sysdeps/csky/dl-sysdep.h
@@ -0,0 +1,23 @@
+/* System-specific settings for dynamic linker code. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include_next <dl-sysdep.h>
+
+/* _dl_argv cannot be attribute_relro, because _dl_start_user
+ might write into it after _dl_start returns. */
+#define DL_ARGV_NOT_RELRO 1
diff --git a/sysdeps/csky/ldsodefs.h b/sysdeps/csky/ldsodefs.h
new file mode 100644
index 0000000..477ca7d
--- /dev/null
+++ b/sysdeps/csky/ldsodefs.h
@@ -0,0 +1,42 @@
+/* Run-time dynamic linker data structures for loaded ELF shared objects.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _CSKY_LDSODEFS_H
+#define _CSKY_LDSODEFS_H 1
+
+#include <elf.h>
+
+struct La_csky_regs;
+struct La_csky_retval;
+
+#define ARCH_PLTENTER_MEMBERS \
+ Elf32_Addr (*csky_gnu_pltenter) (Elf32_Sym *, unsigned int, \
+ uintptr_t *, uintptr_t *, \
+ struct La_csky_regs *, \
+ unsigned int *, const char *, \
+ long int *);
+
+#define ARCH_PLTEXIT_MEMBERS \
+ unsigned int (*csky_gnu_pltexit) (Elf32_Sym *, unsigned int, \
+ uintptr_t *, uintptr_t *, \
+ const struct La_csky_regs *, \
+ struct La_csky_retval *, \
+ const char *);
+
+#include_next <ldsodefs.h>
+#endif
diff --git a/sysdeps/csky/linkmap.h b/sysdeps/csky/linkmap.h
new file mode 100644
index 0000000..648976d
--- /dev/null
+++ b/sysdeps/csky/linkmap.h
@@ -0,0 +1,4 @@
+struct link_map_machine
+ {
+ Elf32_Addr plt; /* Address of .plt */
+ };
diff --git a/sysdeps/csky/sotruss-lib.c b/sysdeps/csky/sotruss-lib.c
new file mode 100644
index 0000000..280c371
--- /dev/null
+++ b/sysdeps/csky/sotruss-lib.c
@@ -0,0 +1,49 @@
+/* Override generic sotruss-lib.c to define actual functions for C-SKY.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#define HAVE_ARCH_PLTENTER
+#define HAVE_ARCH_PLTEXIT
+
+#include <elf/sotruss-lib.c>
+
+ElfW(Addr)
+la_csky_gnu_pltenter (ElfW(Sym) *sym __attribute__ ((unused)),
+ unsigned int ndx __attribute__ ((unused)),
+ uintptr_t *refcook, uintptr_t *defcook,
+ La_csky_regs *regs, unsigned int *flags,
+ const char *symname, long int *framesizep)
+{
+ print_enter (refcook, defcook, symname,
+ regs->lr_reg[0], regs->lr_reg[1], regs->lr_reg[2],
+ *flags);
+
+ /* No need to copy anything, we will not need the parameters in any case. */
+ *framesizep = 0;
+
+ return sym->st_value;
+}
+
+unsigned int
+la_csky_gnu_pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
+ uintptr_t *defcook, const struct La_csky_regs *inregs,
+ struct La_csky_retval *outregs, const char *symname)
+{
+ print_exit (refcook, defcook, symname, outregs->lrv_v0);
+
+ return 0;
+}
diff --git a/sysdeps/csky/tst-audit.h b/sysdeps/csky/tst-audit.h
new file mode 100644
index 0000000..6c64625
--- /dev/null
+++ b/sysdeps/csky/tst-audit.h
@@ -0,0 +1,23 @@
+/* Definitions for testing PLT entry/exit auditing. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#define pltenter la_csky_gnu_pltenter
+#define pltexit la_csky_gnu_pltexit
+#define La_regs La_csky_regs
+#define La_retval La_csky_retval
+#define int_retval lrv_reg[0]
diff --git a/sysdeps/unix/sysv/linux/csky/ldconfig.h b/sysdeps/unix/sysv/linux/csky/ldconfig.h
new file mode 100644
index 0000000..a1e4d61
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/ldconfig.h
@@ -0,0 +1,31 @@
+/* ldconfig default paths and libraries. Linux/C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdeps/generic/ldconfig.h>
+
+#define LD_SO_PREFIX "/lib/ld-linux-"
+#define LD_SO_SUFFIX ".so.1"
+
+# define LD_SO_ABI "cskyv2-le"
+
+#define SYSDEP_KNOWN_INTERPRETER_NAMES \
+ { LD_SO_PREFIX LD_SO_ABI LD_SO_SUFFIX, FLAG_ELF_LIBC6 },
+
+#define SYSDEP_KNOWN_LIBRARY_NAMES \
+ { "libc.so.6", FLAG_ELF_LIBC6 }, \
+ { "libm.so.6", FLAG_ELF_LIBC6 },
--
2.7.4
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v4 13/13] C-SKY: Skeleton documentation
[not found] ` <cover.1536720821.git.han_mao@c-sky.com>
` (4 preceding siblings ...)
2018-09-12 2:57 ` [PATCH v4 08/13] C-SKY: Linux Startup and Dynamic Loading Code Mao Han
@ 2018-09-12 2:57 ` Mao Han
2018-09-12 2:57 ` [PATCH v4 06/13] C-SKY: Linux ABI Mao Han
` (6 subsequent siblings)
12 siblings, 0 replies; 57+ messages in thread
From: Mao Han @ 2018-09-12 2:57 UTC (permalink / raw)
To: libc-alpha; +Cc: Mao Han, c-sky_gcc_upstream, gnu-csky
---
ChangeLog | 154 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
NEWS | 6 +++
README | 1 +
3 files changed, 161 insertions(+)
diff --git a/ChangeLog b/ChangeLog
index 611caf9..670737d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,157 @@
+2018-09-07 Han Mao <han_mao@c-sky.com>
+
+ * config.h.in (CSKYABI, CSKY_HARD_FLOAT): New Define.
+ * elf/elf.h (EM_CSKY, R_CKCORE_NONE, R_CKCORE_ADDR32)
+ (R_CKCORE_PCRELIMM8BY4, R_CKCORE_PCRELIMM11BY2, R_CKCORE_PCREL32)
+ (R_CKCORE_PCRELJSR_IMM11BY2, R_CKCORE_RELATIVE, R_CKCORE_COPY)
+ (R_CKCORE_GLOB_DAT, R_CKCORE_JUMP_SLOT, R_CKCORE_GOTOFF)
+ (R_CKCORE_GOTPC, R_CKCORE_GOT32, R_CKCORE_PLT32, R_CKCORE_ADDRGOT)
+ (R_CKCORE_ADDRPLT, R_CKCORE_PCREL_IMM26BY2, R_CKCORE_PCREL_IMM16BY2)
+ (R_CKCORE_PCREL_IMM16BY4, R_CKCORE_PCREL_IMM10BY2)
+ (R_CKCORE_PCREL_IMM10BY4, R_CKCORE_ADDR_HI16, R_CKCORE_ADDR_LO16)
+ (R_CKCORE_GOTPC_HI16, R_CKCORE_GOTPC_LO16, R_CKCORE_GOTOFF_HI16)
+ (R_CKCORE_GOTOFF_LO16, R_CKCORE_GOT12, R_CKCORE_GOT_HI16)
+ (R_CKCORE_GOT_LO16, R_CKCORE_PLT12, R_CKCORE_PLT_HI16)
+ (R_CKCORE_PLT_LO16, R_CKCORE_ADDRGOT_HI16, R_CKCORE_ADDRGOT_LO16)
+ (R_CKCORE_ADDRPLT_HI16, R_CKCORE_ADDRPLT_LO16)
+ (R_CKCORE_PCREL_JSR_IMM26BY2, R_CKCORE_TOFFSET_LO16)
+ (R_CKCORE_DOFFSET_LO16, R_CKCORE_PCREL_IMM18BY2)
+ (R_CKCORE_DOFFSET_IMM18, R_CKCORE_DOFFSET_IMM18BY2)
+ (R_CKCORE_DOFFSET_IMM18BY4, R_CKCORE_GOT_IMM18BY4)
+ (R_CKCORE_PLT_IMM18BY4, R_CKCORE_PCREL_IMM7BY4, R_CKCORE_TLS_LE32)
+ (R_CKCORE_TLS_IE32, R_CKCORE_TLS_GD32, R_CKCORE_TLS_LDM32)
+ (R_CKCORE_TLS_LDO32, R_CKCORE_TLS_DTPMOD32, R_CKCORE_TLS_DTPOFF32)
+ (R_CKCORE_TLS_TPOFF32): New Define.
+ * scripts/build-many-glibcs.py: Add C-SKY targets.
+ * sysdeps/csky/Implies: New file.
+ * sysdeps/csky/Makefile: Likewise.
+ * sysdeps/csky/abiv2/__longjmp.S: Likewise.
+ * sysdeps/csky/abiv2/crti.S: Likewise.
+ * sysdeps/csky/abiv2/crtn.S: Likewise.
+ * sysdeps/csky/abiv2/csky-mcount.S: Likewise.
+ * sysdeps/csky/abiv2/dl-trampoline.S: Likewise.
+ * sysdeps/csky/abiv2/memcmp.S: Likewise.
+ * sysdeps/csky/abiv2/memcpy.S: Likewise.
+ * sysdeps/csky/abiv2/memmove.S: Likewise.
+ * sysdeps/csky/abiv2/memset.S: Likewise.
+ * sysdeps/csky/abiv2/setjmp.S: Likewise.
+ * sysdeps/csky/abiv2/start.S: Likewise.
+ * sysdeps/csky/abiv2/strcmp.S: Likewise.
+ * sysdeps/csky/abiv2/strcpy.S: Likewise.
+ * sysdeps/csky/abiv2/strlen.S: Likewise.
+ * sysdeps/csky/abiv2/tls-macros.h: Likewise.
+ * sysdeps/csky/abort-instr.h: Likewise.
+ * sysdeps/csky/atomic-machine.h: Likewise.
+ * sysdeps/csky/bits/endian.h: Likewise.
+ * sysdeps/csky/bits/fenv.h: Likewise.
+ * sysdeps/csky/bits/link.h: Likewise.
+ * sysdeps/csky/bits/setjmp.h: Likewise.
+ * sysdeps/csky/bsd-_setjmp.S: Likewise.
+ * sysdeps/csky/bsd-setjmp.S: Likewise.
+ * sysdeps/csky/configure: Likewise.
+ * sysdeps/csky/configure.ac: Likewise.
+ * sysdeps/csky/dl-machine.h: Likewise.
+ * sysdeps/csky/dl-procinfo.c: Likewise.
+ * sysdeps/csky/dl-procinfo.h: Likewise.
+ * sysdeps/csky/dl-sysdep.h: Likewise.
+ * sysdeps/csky/dl-tls.h: Likewise.
+ * sysdeps/csky/fpu/fclrexcpt.c: Likewise.
+ * sysdeps/csky/fpu/fedisblxcpt.c: Likewise.
+ * sysdeps/csky/fpu/feenablxcpt.c: Likewise.
+ * sysdeps/csky/fpu/fegetenv.c: Likewise.
+ * sysdeps/csky/fpu/fegetexcept.c: Likewise.
+ * sysdeps/csky/fpu/fegetmode.c: Likewise.
+ * sysdeps/csky/fpu/fegetround.c: Likewise.
+ * sysdeps/csky/fpu/feholdexcpt.c: Likewise.
+ * sysdeps/csky/fpu/fenv_libc.h: Likewise.
+ * sysdeps/csky/fpu/fenv_private.h: Likewise.
+ * sysdeps/csky/fpu/fesetenv.c: Likewise.
+ * sysdeps/csky/fpu/fesetexcept.c: Likewise.
+ * sysdeps/csky/fpu/fesetmode.c: Likewise.
+ * sysdeps/csky/fpu/fesetround.c: Likewise.
+ * sysdeps/csky/fpu/feupdateenv.c: Likewise.
+ * sysdeps/csky/fpu/fgetexcptflg.c: Likewise.
+ * sysdeps/csky/fpu/fix-fp-int-convert-overflow.h: Likewise.
+ * sysdeps/csky/fpu/fpu_control.h: Likewise.
+ * sysdeps/csky/fpu/fraiseexcpt.c: Likewise.
+ * sysdeps/csky/fpu/fsetexcptflg.c: Likewise.
+ * sysdeps/csky/fpu/ftestexcept.c: Likewise.
+ * sysdeps/csky/fpu/libm-test-ulps: Likewise.
+ * sysdeps/csky/fpu/libm-test-ulps-name: Likewise.
+ * sysdeps/csky/gccframe.h: Likewise.
+ * sysdeps/csky/jmpbuf-unwind.h: Likewise.
+ * sysdeps/csky/ldsodefs.h: Likewise.
+ * sysdeps/csky/libc-tls.c: Likewise.
+ * sysdeps/csky/linkmap.h: Likewise.
+ * sysdeps/csky/machine-gmon.h: Likewise.
+ * sysdeps/csky/math-tests-trap.h: Likewise.
+ * sysdeps/csky/memusage.h: Likewise.
+ * sysdeps/csky/nofpu/Implies: Likewise.
+ * sysdeps/csky/nofpu/libm-test-ulps: Likewise.
+ * sysdeps/csky/nofpu/libm-test-ulps-name: Likewise.
+ * sysdeps/csky/nofpu/math-tests-exceptions.h: Likewise.
+ * sysdeps/csky/nofpu/math-tests-rounding.h: Likewise.
+ * sysdeps/csky/nptl/Makefile: Likewise.
+ * sysdeps/csky/nptl/bits/pthreadtypes-arch.h: Likewise.
+ * sysdeps/csky/nptl/bits/semaphore.h: Likewise.
+ * sysdeps/csky/nptl/pthread-offsets.h: Likewise.
+ * sysdeps/csky/nptl/pthreaddef.h: Likewise.
+ * sysdeps/csky/nptl/tcb-offsets.sym: Likewise.
+ * sysdeps/csky/nptl/tls.h: Likewise.
+ * sysdeps/csky/preconfigure: Likewise.
+ * sysdeps/csky/sfp-machine.h: Likewise.
+ * sysdeps/csky/sotruss-lib.c: Likewise.
+ * sysdeps/csky/stackinfo.h: Likewise.
+ * sysdeps/csky/sysdep.h: Likewise.
+ * sysdeps/csky/tininess.h: Likewise.
+ * sysdeps/csky/tst-audit.h: Likewise.
+ * sysdeps/unix/sysv/linux/csky/Implies: Likewise.
+ * sysdeps/unix/sysv/linux/csky/Makefile: Likewise.
+ * sysdeps/unix/sysv/linux/csky/Versions: Likewise.
+ * sysdeps/unix/sysv/linux/csky/abiv2/____longjmp_chk.S: Likewise.
+ * sysdeps/unix/sysv/linux/csky/abiv2/clone.S: Likewise.
+ * sysdeps/unix/sysv/linux/csky/abiv2/getcontext.S: Likewise.
+ * sysdeps/unix/sysv/linux/csky/abiv2/setcontext.S: Likewise.
+ * sysdeps/unix/sysv/linux/csky/abiv2/swapcontext.S: Likewise.
+ * sysdeps/unix/sysv/linux/csky/abiv2/syscall.S: Likewise.
+ * sysdeps/unix/sysv/linux/csky/abiv2/sysdep.S: Likewise.
+ * sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym: Likewise.
+ * sysdeps/unix/sysv/linux/csky/bits/mman.h: Likewise.
+ * sysdeps/unix/sysv/linux/csky/bits/shm.h: Likewise.
+ * sysdeps/unix/sysv/linux/csky/c++-types.data: Likewise.
+ * sysdeps/unix/sysv/linux/csky/configure: Likewise.
+ * sysdeps/unix/sysv/linux/csky/configure.ac: Likewise.
+ * sysdeps/unix/sysv/linux/csky/ipc_priv.h: Likewise.
+ * sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h: Likewise.
+ * sysdeps/unix/sysv/linux/csky/kernel-features.h: Likewise.
+ * sysdeps/unix/sysv/linux/csky/ld.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/csky/ldconfig.h: Likewise.
+ * sysdeps/unix/sysv/linux/csky/libBrokenLocale.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/csky/libanl.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/csky/libc.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/csky/libcrypt.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/csky/libdl.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/csky/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/csky/libnsl.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/csky/libpthread.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/csky/libresolv.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/csky/librt.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/csky/libthread_db.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/csky/libutil.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/csky/localplt.data: Likewise.
+ * sysdeps/unix/sysv/linux/csky/makecontext.c: Likewise.
+ * sysdeps/unix/sysv/linux/csky/profil-counter.h: Likewise.
+ * sysdeps/unix/sysv/linux/csky/pt-vfork.S: Likewise.
+ * sysdeps/unix/sysv/linux/csky/register-dump.h: Likewise.
+ * sysdeps/unix/sysv/linux/csky/shlib-versions: Likewise.
+ * sysdeps/unix/sysv/linux/csky/sigcontextinfo.h: Likewise.
+ * sysdeps/unix/sysv/linux/csky/sys/cachectl.h: Likewise.
+ * sysdeps/unix/sysv/linux/csky/sys/procfs.h: Likewise.
+ * sysdeps/unix/sysv/linux/csky/sys/ucontext.h: Likewise.
+ * sysdeps/unix/sysv/linux/csky/sys/user.h: Likewise.
+ * sysdeps/unix/sysv/linux/csky/syscalls.list: Likewise.
+ * sysdeps/unix/sysv/linux/csky/sysdep.h: Likewise.
+
2018-09-06 Stefan Liebler <stli@linux.ibm.com>
* sysdeps/s390/fpu/libm-test-ulps: Regenerated.
diff --git a/NEWS b/NEWS
index 085325a..389b8dd 100644
--- a/NEWS
+++ b/NEWS
@@ -21,6 +21,12 @@ Major new features:
* The reallocarray function is now declared under _DEFAULT_SOURCE, not just
for _GNU_SOURCE, to match BSD environments.
+* Support for the C-SKY ABIV2 running on Linux has been added. This port
+ requires at least binutils-2.32, gcc-9.0, and linux-4.19. Two ABIs are
+ supported:
+ - C-SKY ABIV2 soft-float little-endian
+ - C-SKY ABIV2 hard-float little-endian
+
Deprecated and removed features, and other changes affecting compatibility:
* The glibc.tune tunable namespace has been renamed to glibc.cpu and the
diff --git a/README b/README
index 27a9fd4..eb9b0b3 100644
--- a/README
+++ b/README
@@ -25,6 +25,7 @@ The GNU C Library supports these configurations for using Linux kernels:
aarch64*-*-linux-gnu
alpha*-*-linux-gnu
arm-*-linux-gnueabi
+ csky-*-linux-gnuabiv2
hppa-*-linux-gnu
i[4567]86-*-linux-gnu
x86_64-*-linux-gnu Can build either x86_64 or x32
--
2.7.4
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v4 06/13] C-SKY: Linux ABI
[not found] ` <cover.1536720821.git.han_mao@c-sky.com>
` (5 preceding siblings ...)
2018-09-12 2:57 ` [PATCH v4 13/13] C-SKY: Skeleton documentation Mao Han
@ 2018-09-12 2:57 ` Mao Han
2018-09-12 13:40 ` Arnd Bergmann
2018-09-12 2:57 ` [PATCH v4 12/13] C-SKY: Add build-many-glibcs.py support Mao Han
` (5 subsequent siblings)
12 siblings, 1 reply; 57+ messages in thread
From: Mao Han @ 2018-09-12 2:57 UTC (permalink / raw)
To: libc-alpha; +Cc: Mao Han, c-sky_gcc_upstream, gnu-csky
Linux-specific code that is required for maintaining ABI compatibility.
This doesn't contain the actual system call interface.
* sysdeps/unix/sysv/linux/csky/Versions: Likewise.
* sysdeps/unix/sysv/linux/csky/bits/mman.h: New file.
* sysdeps/unix/sysv/linux/csky/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/csky/c++-types.data: Likewise.
* sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym: Likewise.
* sysdeps/unix/sysv/linux/csky/ipc_priv.h: Likewise.
* sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h: Likewise.
* sysdeps/unix/sysv/linux/csky/kernel-features.h: Likewise.
* sysdeps/unix/sysv/linux/csky/localplt.data: Likewise.
* sysdeps/unix/sysv/linux/csky/makecontext.c: Likewise.
* sysdeps/unix/sysv/linux/csky/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/csky/register-dump.h: Likewise.
* sysdeps/unix/sysv/linux/csky/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/csky/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/csky/sys/cachectl.h: Likewise.
* sysdeps/unix/sysv/linux/csky/sys/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/csky/sys/ucontext.h: Likewise.
* sysdeps/unix/sysv/linux/csky/sys/user.h: Likewise.
* sysdeps/unix/sysv/linux/csky/sysdep.h: Likewise.
---
sysdeps/unix/sysv/linux/csky/Versions | 5 +
sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym | 32 ++
sysdeps/unix/sysv/linux/csky/bits/mman.h | 44 ++
sysdeps/unix/sysv/linux/csky/bits/shm.h | 104 +++++
sysdeps/unix/sysv/linux/csky/c++-types.data | 67 +++
sysdeps/unix/sysv/linux/csky/ipc_priv.h | 21 +
sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h | 6 +
sysdeps/unix/sysv/linux/csky/kernel-features.h | 23 +
sysdeps/unix/sysv/linux/csky/localplt.data | 19 +
sysdeps/unix/sysv/linux/csky/makecontext.c | 74 +++
sysdeps/unix/sysv/linux/csky/profil-counter.h | 31 ++
sysdeps/unix/sysv/linux/csky/register-dump.h | 193 ++++++++
sysdeps/unix/sysv/linux/csky/shlib-versions | 7 +
sysdeps/unix/sysv/linux/csky/sigcontextinfo.h | 32 ++
sysdeps/unix/sysv/linux/csky/sys/cachectl.h | 38 ++
sysdeps/unix/sysv/linux/csky/sys/procfs.h | 123 +++++
sysdeps/unix/sysv/linux/csky/sys/ucontext.h | 89 ++++
sysdeps/unix/sysv/linux/csky/sys/user.h | 60 +++
sysdeps/unix/sysv/linux/csky/sysdep.h | 534 ++++++++++++++++++++++
19 files changed, 1502 insertions(+)
create mode 100644 sysdeps/unix/sysv/linux/csky/Versions
create mode 100644 sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym
create mode 100644 sysdeps/unix/sysv/linux/csky/bits/mman.h
create mode 100644 sysdeps/unix/sysv/linux/csky/bits/shm.h
create mode 100644 sysdeps/unix/sysv/linux/csky/c++-types.data
create mode 100644 sysdeps/unix/sysv/linux/csky/ipc_priv.h
create mode 100644 sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h
create mode 100644 sysdeps/unix/sysv/linux/csky/kernel-features.h
create mode 100644 sysdeps/unix/sysv/linux/csky/localplt.data
create mode 100644 sysdeps/unix/sysv/linux/csky/makecontext.c
create mode 100644 sysdeps/unix/sysv/linux/csky/profil-counter.h
create mode 100644 sysdeps/unix/sysv/linux/csky/register-dump.h
create mode 100644 sysdeps/unix/sysv/linux/csky/shlib-versions
create mode 100644 sysdeps/unix/sysv/linux/csky/sigcontextinfo.h
create mode 100644 sysdeps/unix/sysv/linux/csky/sys/cachectl.h
create mode 100644 sysdeps/unix/sysv/linux/csky/sys/procfs.h
create mode 100644 sysdeps/unix/sysv/linux/csky/sys/ucontext.h
create mode 100644 sysdeps/unix/sysv/linux/csky/sys/user.h
create mode 100644 sysdeps/unix/sysv/linux/csky/sysdep.h
diff --git a/sysdeps/unix/sysv/linux/csky/Versions b/sysdeps/unix/sysv/linux/csky/Versions
new file mode 100644
index 0000000..b61b3b2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/Versions
@@ -0,0 +1,5 @@
+libc {
+ GLIBC_2.29 {
+ cacheflush;
+ }
+}
diff --git a/sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym b/sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym
new file mode 100644
index 0000000..4581b65
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym
@@ -0,0 +1,32 @@
+#include <inttypes.h>
+#include <signal.h>
+#include <stddef.h>
+#include <sys/ucontext.h>
+
+SIG_BLOCK
+SIG_SETMASK
+
+-- Offsets of the fields in the ucontext_t structure.
+#define ucontext(member) offsetof (ucontext_t, member)
+#define mcontext(member) ucontext (uc_mcontext.member)
+#define greg(member) mcontext (__gregs.member)
+#define fpreg(member) mcontext (__fpregs.member)
+
+UCONTEXT_FLAGS ucontext (__uc_flags)
+UCONTEXT_LINK ucontext (uc_link)
+UCONTEXT_STACK ucontext (uc_stack)
+UCONTEXT_MCONTEXT ucontext (uc_mcontext)
+UCONTEXT_SIGMASK ucontext (uc_sigmask)
+
+MCONTEXT_CSKY_PC greg (__pc)
+MCONTEXT_CSKY_SP greg (__usp)
+MCONTEXT_CSKY_LR greg (__lr)
+MCONTEXT_CSKY_A0 greg (__a0)
+MCONTEXT_CSKY_R8 greg (__regs[2])
+MCONTEXT_CSKY_R16 greg (__exregs[0])
+MCONTEXT_CSKY_HI greg (__rhi)
+MCONTEXT_CSKY_LO greg (__rlo)
+MCONTEXT_CSKY_R4 greg (__regs[0])
+MCONTEXT_CSKY_FESR fpreg (__fesr)
+MCONTEXT_CSKY_FCR fpreg (__fcr)
+MCONTEXT_CSKY_FR0 fpreg (__vr[0])
diff --git a/sysdeps/unix/sysv/linux/csky/bits/mman.h b/sysdeps/unix/sysv/linux/csky/bits/mman.h
new file mode 100644
index 0000000..cbb16dc
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/bits/mman.h
@@ -0,0 +1,44 @@
+/* Definitions for POSIX memory map interface. Linux/C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_MMAN_H
+# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
+#endif
+
+/* The following definitions basically come from the kernel headers.
+ But the kernel header is not namespace clean. */
+
+/* These are Linux-specific. */
+#ifdef __USE_MISC
+# define MAP_GROWSDOWN 0x00100 /* Stack-like segment. */
+# define MAP_DENYWRITE 0x00800 /* ETXTBSY */
+# define MAP_EXECUTABLE 0x01000 /* Mark it as an executable. */
+# define MAP_LOCKED 0x02000 /* Lock the mapping. */
+# define MAP_NORESERVE 0x04000 /* Don't check for reservations. */
+# define MAP_POPULATE 0x08000 /* Populate (prefault) pagetables. */
+# define MAP_NONBLOCK 0x10000 /* Do not block on IO. */
+# define MAP_STACK 0x20000 /* Allocation is for a stack. */
+# define MAP_HUGETLB 0x40000 /* Create huge page mapping. */
+# define MAP_SYNC 0x80000 /* Perform synchronous page
+ faults for the mapping. */
+# define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED but do not unmap
+ underlying mapping. */
+#endif
+
+/* Include generic Linux declarations. */
+#include <bits/mman-linux.h>
diff --git a/sysdeps/unix/sysv/linux/csky/bits/shm.h b/sysdeps/unix/sysv/linux/csky/bits/shm.h
new file mode 100644
index 0000000..cc4347e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/bits/shm.h
@@ -0,0 +1,104 @@
+/* Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_SHM_H
+# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead."
+#endif
+
+#include <bits/types.h>
+
+/* Permission flag for shmget. */
+#define SHM_R 0400 /* or S_IRUGO from <linux/stat.h> */
+#define SHM_W 0200 /* or S_IWUGO from <linux/stat.h> */
+
+/* Flags for `shmat'. */
+#define SHM_RDONLY 010000 /* attach read-only else read-write */
+#define SHM_RND 020000 /* round attach address to SHMLBA */
+#define SHM_REMAP 040000 /* take-over region on attach */
+#define SHM_EXEC 0100000 /* execution access */
+
+/* Commands for `shmctl'. */
+#define SHM_LOCK 11 /* lock segment (root only) */
+#define SHM_UNLOCK 12 /* unlock segment (root only) */
+
+__BEGIN_DECLS
+
+/* Segment low boundary address multiple. */
+#define SHMLBA (__getpagesize () << 2)
+extern int __getpagesize (void) __THROW __attribute__ ((__const__));
+
+
+/* Type to count number of attaches. */
+typedef unsigned long int shmatt_t;
+
+/* Data structure describing a shared memory segment. */
+struct shmid_ds
+ {
+ struct ipc_perm shm_perm; /* operation permission struct */
+ size_t shm_segsz; /* size of segment in bytes */
+ __time_t shm_atime; /* time of last shmat() */
+ unsigned long int __glibc_reserved1;
+ __time_t shm_dtime; /* time of last shmdt() */
+ unsigned long int __glibc_reserved2;
+ __time_t shm_ctime; /* time of last change by shmctl() */
+ unsigned long int __glibc_reserved3;
+ __pid_t shm_cpid; /* pid of creator */
+ __pid_t shm_lpid; /* pid of last shmop */
+ shmatt_t shm_nattch; /* number of current attaches */
+ unsigned long int __glibc_reserved4;
+ unsigned long int __glibc_reserved5;
+ };
+
+#ifdef __USE_MISC
+
+/* ipcs ctl commands */
+# define SHM_STAT 13
+# define SHM_INFO 14
+# define SHM_STAT_ANY 15
+
+/* shm_mode upper byte flags */
+# define SHM_DEST 01000 /* segment will be destroyed on last detach */
+# define SHM_LOCKED 02000 /* segment will not be swapped */
+# define SHM_HUGETLB 04000 /* segment is mapped via hugetlb */
+# define SHM_NORESERVE 010000 /* don't check for reservations */
+
+struct shminfo
+ {
+ unsigned long int shmmax;
+ unsigned long int shmmin;
+ unsigned long int shmmni;
+ unsigned long int shmseg;
+ unsigned long int shmall;
+ unsigned long int __glibc_reserved1;
+ unsigned long int __glibc_reserved2;
+ unsigned long int __glibc_reserved3;
+ unsigned long int __glibc_reserved4;
+ };
+
+struct shm_info
+ {
+ int used_ids;
+ unsigned long int shm_tot; /* total allocated shm */
+ unsigned long int shm_rss; /* total resident shm */
+ unsigned long int shm_swp; /* total swapped shm */
+ unsigned long int swap_attempts;
+ unsigned long int swap_successes;
+ };
+
+#endif /* __USE_MISC */
+
+__END_DECLS
diff --git a/sysdeps/unix/sysv/linux/csky/c++-types.data b/sysdeps/unix/sysv/linux/csky/c++-types.data
new file mode 100644
index 0000000..303f457
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/c++-types.data
@@ -0,0 +1,67 @@
+blkcnt64_t:x
+blkcnt_t:l
+blksize_t:i
+caddr_t:Pc
+clockid_t:i
+clock_t:l
+daddr_t:i
+dev_t:y
+fd_mask:l
+fsblkcnt64_t:y
+fsblkcnt_t:m
+fsfilcnt64_t:y
+fsfilcnt_t:m
+fsid_t:8__fsid_t
+gid_t:j
+id_t:j
+ino64_t:y
+ino_t:m
+int16_t:s
+int32_t:i
+int64_t:x
+int8_t:a
+intptr_t:i
+key_t:i
+loff_t:x
+mode_t:j
+nlink_t:j
+off64_t:x
+off_t:l
+pid_t:i
+pthread_attr_t:14pthread_attr_t
+pthread_barrier_t:17pthread_barrier_t
+pthread_barrierattr_t:21pthread_barrierattr_t
+pthread_cond_t:14pthread_cond_t
+pthread_condattr_t:18pthread_condattr_t
+pthread_key_t:j
+pthread_mutex_t:15pthread_mutex_t
+pthread_mutexattr_t:19pthread_mutexattr_t
+pthread_once_t:i
+pthread_rwlock_t:16pthread_rwlock_t
+pthread_rwlockattr_t:20pthread_rwlockattr_t
+pthread_spinlock_t:i
+pthread_t:m
+quad_t:x
+register_t:i
+rlim64_t:y
+rlim_t:m
+sigset_t:10__sigset_t
+size_t:j
+socklen_t:j
+ssize_t:i
+suseconds_t:l
+time_t:l
+u_char:h
+uid_t:j
+uint:j
+u_int:j
+u_int16_t:t
+u_int32_t:j
+u_int64_t:y
+u_int8_t:h
+ulong:m
+u_long:m
+u_quad_t:y
+useconds_t:j
+ushort:t
+u_short:t
diff --git a/sysdeps/unix/sysv/linux/csky/ipc_priv.h b/sysdeps/unix/sysv/linux/csky/ipc_priv.h
new file mode 100644
index 0000000..56ded89
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/ipc_priv.h
@@ -0,0 +1,21 @@
+/* Old SysV permission definition for Linux. C-SKY version.
+ Copyright (C) 2017-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sys/ipc.h> /* For __key_t */
+
+#define __IPC_64 0x0
diff --git a/sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h b/sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h
new file mode 100644
index 0000000..5a390c7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h
@@ -0,0 +1,6 @@
+#define JMP_BUF_SIZE 268
+#define SIGJMP_BUF_SIZE 268
+#define JMP_BUF_ALIGN 4
+#define SIGJMP_BUF_ALIGN 4
+#define MASK_WAS_SAVED_OFFSET 136
+#define SAVED_MASK_OFFSET 140
diff --git a/sysdeps/unix/sysv/linux/csky/kernel-features.h b/sysdeps/unix/sysv/linux/csky/kernel-features.h
new file mode 100644
index 0000000..854865b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/kernel-features.h
@@ -0,0 +1,23 @@
+/* Set flags signalling availability of kernel features based on given
+ kernel version number.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include_next <kernel-features.h>
+
+/* fadvise64_64 reorganize the syscall arguments. */
+#define __ASSUME_FADVISE64_64_6ARG 1
diff --git a/sysdeps/unix/sysv/linux/csky/localplt.data b/sysdeps/unix/sysv/linux/csky/localplt.data
new file mode 100644
index 0000000..14c02cb
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/localplt.data
@@ -0,0 +1,19 @@
+# See scripts/check-localplt.awk for how this file is processed.
+# PLT use is required for the malloc family and for matherr because
+# users can define their own functions and have library internals call them.
+libc.so: calloc
+libc.so: free
+libc.so: malloc
+libc.so: memalign
+libc.so: realloc
+# The main malloc is interposed into the dynamic linker, for
+# allocations after the initial link (when dlopen is used).
+ld.so: malloc
+ld.so: calloc
+ld.so: realloc
+ld.so: free
+# The TLS-enabled version of these functions is interposed from libc.so.
+ld.so: _dl_signal_error
+ld.so: _dl_catch_error
+ld.so: _dl_signal_exception
+ld.so: _dl_catch_exception
diff --git a/sysdeps/unix/sysv/linux/csky/makecontext.c b/sysdeps/unix/sysv/linux/csky/makecontext.c
new file mode 100644
index 0000000..c0d7d1e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/makecontext.c
@@ -0,0 +1,74 @@
+/* Create new context. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <stdarg.h>
+#include <ucontext.h>
+
+/* Number of arguments that go in registers. */
+#define NREG_ARGS 4
+
+/* Take a context previously prepared via getcontext() and set to
+ call func() with the given int only args. */
+void
+__makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
+{
+ extern void __startcontext (void);
+ unsigned long *funcstack;
+ va_list vl;
+ unsigned long *regptr;
+ unsigned int reg;
+ int misaligned;
+
+ /* Start at the top of stack. */
+ funcstack = (unsigned long *) (ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size);
+
+ /* Ensure the stack stays eight byte aligned. */
+ misaligned = ((unsigned long) funcstack & 4) != 0;
+
+ if ((argc > NREG_ARGS) && (argc & 1) != 0)
+ misaligned = !misaligned;
+
+ if (misaligned)
+ funcstack -= 1;
+
+ va_start (vl, argc);
+
+ /* Reserve space for the on-stack arguments. */
+ if (argc > NREG_ARGS)
+ funcstack -= (argc - NREG_ARGS);
+
+ ucp->uc_mcontext.__gregs.__usp = (unsigned long) funcstack;
+ ucp->uc_mcontext.__gregs.__pc = (unsigned long) func;
+
+ /* Exit to startcontext() with the next context in R9. */
+ ucp->uc_mcontext.__gregs.__regs[5] = (unsigned long) ucp->uc_link;
+ ucp->uc_mcontext.__gregs.__lr = (unsigned long) __startcontext;
+
+ /* The first four arguments go into registers. */
+ regptr = &(ucp->uc_mcontext.__gregs.__a0);
+
+ for (reg = 0; (reg < argc) && (reg < NREG_ARGS); reg++)
+ *regptr++ = va_arg (vl, unsigned long);
+
+ /* And the remainder on the stack. */
+ for (; reg < argc; reg++)
+ *funcstack++ = va_arg (vl, unsigned long);
+
+ va_end (vl);
+}
+weak_alias (__makecontext, makecontext)
diff --git a/sysdeps/unix/sysv/linux/csky/profil-counter.h b/sysdeps/unix/sysv/linux/csky/profil-counter.h
new file mode 100644
index 0000000..1f7ec7a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/profil-counter.h
@@ -0,0 +1,31 @@
+/* Low-level statistical profiling support function. Linux/C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <signal.h>
+#include <sigcontextinfo.h>
+
+void
+__profil_counter (int signo, const SIGCONTEXT scp)
+{
+ profil_count ((void *) GET_PC (scp));
+
+ /* This is a hack to prevent the compiler from implementing the
+ above function call as a sibcall. The sibcall would overwrite
+ the signal context. */
+ asm volatile ("");
+}
diff --git a/sysdeps/unix/sysv/linux/csky/register-dump.h b/sysdeps/unix/sysv/linux/csky/register-dump.h
new file mode 100644
index 0000000..9abe87a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/register-dump.h
@@ -0,0 +1,193 @@
+/* Dump registers.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sys/uio.h>
+#include <_itoa.h>
+#include <bits/sigcontext.h>
+#include <sys/ucontext.h>
+
+/* abiv1 register dump in this format:
+
+ PSR: XXXXXXXX PC: XXXXXXXX SP: XXXXXXXX LR: XXXXXXXX
+ MASK: XXXXXXXX
+
+ A0: XXXXXXXX A1: XXXXXXXX A2: XXXXXXXX A3: XXXXXXXX
+ R6: XXXXXXXX R7: XXXXXXXX R8: XXXXXXXX R9: XXXXXXXX
+ R10: XXXXXXXX R11: XXXXXXXX R12: XXXXXXXX R13: XXXXXXXX
+ R14: XXXXXXXX R1: XXXXXXXX
+
+ abiv2 register dump in this format:
+
+ PSR: XXXXXXXX PC: XXXXXXXX SP: XXXXXXXX LR: XXXXXXXX
+ MASK: XXXXXXXX
+
+ A0: XXXXXXXX A1: XXXXXXXX A2: XXXXXXXX A3: XXXXXXXX
+ R4: XXXXXXXX R5: XXXXXXXX R6: XXXXXXXX R7: XXXXXXXX
+ R8: XXXXXXXX R9: XXXXXXXX R10: XXXXXXXX R11: XXXXXXXX
+ R12: XXXXXXXX R13: XXXXXXXX R14: XXXXXXXX R15: XXXXXXXX
+ R16: XXXXXXXX R17: XXXXXXXX R18: XXXXXXXX R19: XXXXXXXX
+ R20: XXXXXXXX R21: XXXXXXXX R22: XXXXXXXX R23: XXXXXXXX
+ R24: XXXXXXXX R25: XXXXXXXX R26: XXXXXXXX R27: XXXXXXXX
+ R28: XXXXXXXX R29: XXXXXXXX R30: XXXXXXXX R31: XXXXXXXX
+
+ */
+
+static void
+hexvalue (unsigned long int value, char *buf, size_t len)
+{
+ char *cp = _itoa_word (value, buf + len, 16, 0);
+ while (cp > buf)
+ *--cp = '0';
+}
+
+static void
+register_dump (int fd, const struct ucontext_t *ctx)
+{
+ char regs[35][8];
+ struct iovec iov[97];
+ size_t nr = 0;
+
+#define ADD_STRING(str) \
+ iov[nr].iov_base = (char *) str; \
+ iov[nr].iov_len = strlen (str); \
+ ++nr
+#define ADD_MEM(str, len) \
+ iov[nr].iov_base = str; \
+ iov[nr].iov_len = len; \
+ ++nr
+
+ /* Generate strings of register contents. */
+ hexvalue (ctx->uc_mcontext.__gregs.__sr, regs[0], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__pc, regs[1], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__usp, regs[2], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__lr, regs[3], 8);
+ hexvalue (ctx->uc_mcontext.__mask, regs[4], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__a0, regs[5], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__a1, regs[6], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__a2, regs[7], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__a3, regs[8], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__regs[0], regs[9], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__regs[1], regs[10], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__regs[2], regs[11], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__regs[3], regs[12], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__regs[4], regs[13], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__regs[5], regs[14], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__regs[6], regs[15], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__regs[7], regs[16], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__regs[8], regs[17], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__regs[9], regs[18], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[0], regs[19], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[1], regs[20], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[2], regs[21], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[3], regs[22], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[4], regs[23], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[5], regs[24], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[6], regs[25], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[7], regs[26], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[8], regs[27], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[9], regs[28], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[10], regs[29], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[11], regs[30], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[12], regs[31], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[13], regs[32], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__exregs[14], regs[33], 8);
+ hexvalue (ctx->uc_mcontext.__gregs.__tls, regs[34], 8);
+
+ /* Generate the output. */
+ ADD_STRING ("Register dump:\n\n PSR: ");
+ ADD_MEM (regs[0], 8);
+ ADD_STRING (" PC: ");
+ ADD_MEM (regs[1], 8);
+ ADD_STRING (" SP: ");
+ ADD_MEM (regs[2], 8);
+ ADD_STRING (" LR: ");
+ ADD_MEM (regs[3], 8);
+ ADD_STRING ("\n MASK: ");
+ ADD_MEM (regs[4], 8);
+ ADD_STRING ("\n\n A0: ");
+ ADD_MEM (regs[5], 8);
+ ADD_STRING (" A1: ");
+ ADD_MEM (regs[6], 8);
+ ADD_STRING (" A2: ");
+ ADD_MEM (regs[7], 8);
+ ADD_STRING (" A3: ");
+ ADD_MEM (regs[8], 8);
+ ADD_STRING ("\n R4: ");
+ ADD_MEM (regs[9], 8);
+ ADD_STRING (" r5: ");
+ ADD_MEM (regs[10], 8);
+ ADD_STRING (" r6: ");
+ ADD_MEM (regs[11], 8);
+ ADD_STRING (" r7: ");
+ ADD_MEM (regs[12], 8);
+ ADD_STRING ("\n R8: ");
+ ADD_MEM (regs[13], 8);
+ ADD_STRING (" R9: ");
+ ADD_MEM (regs[14], 8);
+ ADD_STRING (" R10: ");
+ ADD_MEM (regs[15], 8);
+ ADD_STRING (" R11: ");
+ ADD_MEM (regs[16], 8);
+ ADD_STRING ("\n R12: ");
+ ADD_MEM (regs[17], 8);
+ ADD_STRING (" R13: ");
+ ADD_MEM (regs[18], 8);
+ ADD_STRING (" R14: ");
+ ADD_MEM (regs[19], 8);
+ ADD_STRING (" R15: ");
+ ADD_MEM (regs[20], 8);
+ ADD_STRING ("\n R16: ");
+ ADD_MEM (regs[21], 8);
+ ADD_STRING (" R17: ");
+ ADD_MEM (regs[22], 8);
+ ADD_STRING (" R18: ");
+ ADD_MEM (regs[23], 8);
+ ADD_STRING (" R19: ");
+ ADD_MEM (regs[24], 8);
+ ADD_STRING ("\n R20: ");
+ ADD_MEM (regs[25], 8);
+ ADD_STRING (" R21: ");
+ ADD_MEM (regs[26], 8);
+ ADD_STRING (" R22: ");
+ ADD_MEM (regs[27], 8);
+ ADD_STRING (" R23: ");
+ ADD_MEM (regs[28], 8);
+ ADD_STRING ("\n R24: ");
+ ADD_MEM (regs[29], 8);
+ ADD_STRING (" R25: ");
+ ADD_MEM (regs[30], 8);
+ ADD_STRING (" R26: ");
+ ADD_MEM (regs[31], 8);
+ ADD_STRING (" R27: ");
+ ADD_MEM (regs[32], 8);
+ ADD_STRING ("\n R28: ");
+ ADD_MEM (regs[33], 8);
+ ADD_STRING (" R29: ");
+ ADD_MEM (regs[34], 8);
+ ADD_STRING (" R30: ");
+ ADD_MEM (regs[33], 8);
+ ADD_STRING (" TP: ");
+ ADD_MEM (regs[34], 8);
+
+ ADD_STRING ("\n");
+
+ /* Write the stuff out. */
+ writev (fd, iov, nr);
+}
+
+#define REGISTER_DUMP register_dump (fd, ctx)
diff --git a/sysdeps/unix/sysv/linux/csky/shlib-versions b/sysdeps/unix/sysv/linux/csky/shlib-versions
new file mode 100644
index 0000000..1451971
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/shlib-versions
@@ -0,0 +1,7 @@
+DEFAULT GLIBC_2.29
+
+%if CSKYABI == 2
+ld=ld-linux-cskyv2-le.so.1
+%else
+%error cannot determine ABI
+%endif
diff --git a/sysdeps/unix/sysv/linux/csky/sigcontextinfo.h b/sysdeps/unix/sysv/linux/csky/sigcontextinfo.h
new file mode 100644
index 0000000..b9054d3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/sigcontextinfo.h
@@ -0,0 +1,32 @@
+/* C-SKY definitions for signal handling calling conventions.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#define SIGCONTEXT siginfo_t *_si, struct ucontext_t *
+#define GET_PC(ctx) ((void *) (ctx)->uc_mcontext.__gregs.__pc)
+
+/* There is no reliable way to get the sigcontext unless we use a
+ three-argument signal handler. */
+#define __sigaction(sig, act, oact) ({ \
+ (act)->sa_flags |= SA_SIGINFO; \
+ (__sigaction) (sig, act, oact); \
+})
+
+#define sigaction(sig, act, oact) ({ \
+ (act)->sa_flags |= SA_SIGINFO; \
+ (sigaction) (sig, act, oact); \
+})
diff --git a/sysdeps/unix/sysv/linux/csky/sys/cachectl.h b/sysdeps/unix/sysv/linux/csky/sys/cachectl.h
new file mode 100644
index 0000000..bdc7dbb
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/sys/cachectl.h
@@ -0,0 +1,38 @@
+/* C-SKY cache flushing interface.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_CACHECTL_H
+#define _SYS_CACHECTL_H 1
+
+#include <features.h>
+
+/* Get the kernel definition for the op bits. */
+#include <asm/cachectl.h>
+
+__BEGIN_DECLS
+
+#ifdef __USE_MISC
+extern int cacheflush (void *__addr, const int __nbytes,
+ const int __op) __THROW;
+#endif
+extern int _flush_cache (char *__addr, const int __nbytes,
+ const int __op) __THROW;
+
+__END_DECLS
+
+#endif /* sys/cachectl.h */
diff --git a/sysdeps/unix/sysv/linux/csky/sys/procfs.h b/sysdeps/unix/sysv/linux/csky/sys/procfs.h
new file mode 100644
index 0000000..e48eaba
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/sys/procfs.h
@@ -0,0 +1,123 @@
+/* Core image file related definitions, C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_PROCFS_H
+#define _SYS_PROCFS_H 1
+
+/* This is somewhat modelled after the file of the same name on SVR4
+ systems. It provides a definition of the core file format for ELF
+ used on Linux. It doesn't have anything to do with the /proc file
+ system, even though Linux has one.
+
+ Anyway, the whole purpose of this file is for GDB and GDB only.
+ Don't read too much into it. Don't use it for anything other than
+ GDB unless you know what you are doing. */
+
+#include <features.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/user.h>
+
+__BEGIN_DECLS
+
+/* Type for a general-purpose register. */
+typedef unsigned long elf_greg_t;
+
+/* And the whole bunch of them. We could have used `struct
+ user_regs' directly in the typedef, but tradition says that
+ the register set is an array, which does have some peculiar
+ semantics, so leave it that way. */
+#define ELF_NGREG (sizeof (struct user_regs) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/* Register set for the floating-point registers. */
+typedef struct user_fpregs elf_fpregset_t;
+
+/* Signal info. */
+struct elf_siginfo
+ {
+ int si_signo; /* Signal number. */
+ int si_code; /* Extra code. */
+ int si_errno; /* Errno. */
+ };
+
+/* Definitions to generate Intel SVR4-like core files. These mostly
+ have the same names as the SVR4 types with "elf_" tacked on the
+ front to prevent clashes with Linux definitions, and the typedef
+ forms have been avoided. This is mostly like the SVR4 structure,
+ but more Linuxy, with things that Linux does not support and which
+ GDB doesn't really use excluded. */
+
+struct elf_prstatus
+ {
+ struct elf_siginfo pr_info; /* Info associated with signal. */
+ short int pr_cursig; /* Current signal. */
+ unsigned long int pr_sigpend; /* Set of pending signals. */
+ unsigned long int pr_sighold; /* Set of held signals. */
+ __pid_t pr_pid;
+ __pid_t pr_ppid;
+ __pid_t pr_pgrp;
+ __pid_t pr_sid;
+ struct timeval pr_utime; /* User time. */
+ struct timeval pr_stime; /* System time. */
+ struct timeval pr_cutime; /* Cumulative user time. */
+ struct timeval pr_cstime; /* Cumulative system time. */
+ elf_gregset_t pr_reg; /* GP registers. */
+ int pr_fpvalid; /* True if math copro being used. */
+ };
+
+
+#define ELF_PRARGSZ (80) /* Number of chars for args. */
+
+struct elf_prpsinfo
+ {
+ char pr_state; /* Numeric process state. */
+ char pr_sname; /* Char for pr_state. */
+ char pr_zomb; /* Zombie. */
+ char pr_nice; /* Nice val. */
+ unsigned long int pr_flag; /* Flags. */
+ unsigned short int pr_uid;
+ unsigned short int pr_gid;
+ int pr_pid, pr_ppid, pr_pgrp, pr_sid;
+ /* Lots missing */
+ char pr_fname[16]; /* Filename of executable. */
+ char pr_psargs[ELF_PRARGSZ]; /* Initial part of arg list. */
+ };
+
+/* The rest of this file provides the types for emulation of the
+ Solaris <proc_service.h> interfaces that should be implemented by
+ users of libthread_db. */
+
+/* Addresses. */
+typedef void *psaddr_t;
+
+/* Register sets. Linux has different names. */
+typedef elf_gregset_t prgregset_t;
+typedef elf_fpregset_t prfpregset_t;
+
+/* We don't have any differences between processes and threads,
+ therefore have only one PID type. */
+typedef __pid_t lwpid_t;
+
+/* Process status and info. In the end we do provide typedefs for them. */
+typedef struct elf_prstatus prstatus_t;
+typedef struct elf_prpsinfo prpsinfo_t;
+
+__END_DECLS
+
+#endif /* sys/procfs.h */
diff --git a/sysdeps/unix/sysv/linux/csky/sys/ucontext.h b/sysdeps/unix/sysv/linux/csky/sys/ucontext.h
new file mode 100644
index 0000000..b784ddd
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/sys/ucontext.h
@@ -0,0 +1,89 @@
+/* struct ucontext definition, C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H 1
+
+#include <features.h>
+
+#include <bits/types/sigset_t.h>
+#include <bits/types/stack_t.h>
+
+typedef struct
+ {
+ unsigned long __tls;
+ unsigned long __lr;
+ unsigned long __pc;
+ unsigned long __sr;
+ unsigned long __usp;
+
+ /*
+ * a0, a1, a2, a3:
+ * abiv2: r0, r1, r2, r3
+ */
+
+ unsigned long __orig_a0;
+ unsigned long __a0;
+ unsigned long __a1;
+ unsigned long __a2;
+ unsigned long __a3;
+
+ /*
+ * ABIV2: r4 ~ r13
+ */
+ unsigned long __regs[10];
+
+ /* r16 ~ r30 */
+ unsigned long __exregs[15];
+
+ unsigned long __rhi;
+ unsigned long __rlo;
+ unsigned long __glibc_reserved;
+ } gregset_t;
+
+typedef struct
+ {
+ unsigned long __vr[64];
+ unsigned long __fcr;
+ unsigned long __fesr;
+ unsigned long __fid;
+ unsigned long __glibc_reserved;
+ } fpregset_t;
+
+/* Context to describe whole processor state. */
+typedef struct
+ {
+ unsigned long __mask;
+ gregset_t __gregs;
+ fpregset_t __fpregs;
+ } mcontext_t;
+
+/* Userlevel context. */
+typedef struct ucontext_t
+ {
+ unsigned long int __uc_flags;
+ struct ucontext_t *uc_link;
+ stack_t uc_stack;
+ mcontext_t uc_mcontext;
+ sigset_t uc_sigmask;
+ } ucontext_t;
+
+#undef __ctx
+
+
+#endif /* sys/ucontext.h */
diff --git a/sysdeps/unix/sysv/linux/csky/sys/user.h b/sysdeps/unix/sysv/linux/csky/sys/user.h
new file mode 100644
index 0000000..6064734
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/sys/user.h
@@ -0,0 +1,60 @@
+/* ptrace register data format definitions. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_USER_H
+#define _SYS_USER_H 1
+
+struct user_fpregs {
+ unsigned long fsr; /* fpu status reg */
+ unsigned long fesr; /* fpu exception status reg */
+ unsigned long fp[32]; /* fpu general regs */
+};
+
+struct user_regs {
+ unsigned long int uregs[34]; /* CSKY V2 has 32 general rgister. */
+};
+
+/* When the kernel dumps core, it starts by dumping the user struct -
+ this will be used by gdb to figure out where the data and stack segments
+ are within the file, and what virtual addresses to use. */
+struct user{
+/* We start with the registers, to mimic the way that "memory" is returned
+ from the ptrace(3,...) function. */
+ struct user_regs regs; /* The registers are actually stored. */
+ int u_fpvalid; /* True if math co-processor being used. */
+
+/* The rest of this junk is to help gdb figure out what goes where. */
+ unsigned long int u_tsize; /* Text segment size (pages). */
+ unsigned long int u_dsize; /* Data segment size (pages). */
+ unsigned long int u_ssize; /* Stack segment size (pages). */
+ unsigned long start_code; /* Starting virtual address of text. */
+ unsigned long start_stack; /* Starting virtual address of stack area.
+ This is actually the bottom of the stack
+ the top of the stack is always found in
+ the esp register. */
+ long int signal; /* Signal that caused the core dump. */
+ int reserved; /* No longer used. */
+ struct user_regs * u_ar0; /* Used by gdb to help find the values
+ for the registers. */
+ unsigned long magic; /* To uniquely identify a core file. */
+ char u_comm[32]; /* User command that was responsible. */
+ struct user_fpregs u_fp;
+ struct user_fpregs* u_fpstate; /* Math Co-processor pointer. */
+};
+
+#endif /* _SYS_USER_H */
diff --git a/sysdeps/unix/sysv/linux/csky/sysdep.h b/sysdeps/unix/sysv/linux/csky/sysdep.h
new file mode 100644
index 0000000..3fd456f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/sysdep.h
@@ -0,0 +1,534 @@
+/* Assembly macros for C-SKY.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _LINUX_CSKY_SYSDEP_H
+#define _LINUX_CSKY_SYSDEP_H 1
+
+/* There is some commonality. */
+#include <sysdeps/unix/sysv/linux/generic/sysdep.h>
+#include <sysdeps/unix/sysv/linux/sysdep.h>
+#include <sysdeps/csky/sysdep.h>
+
+/* Defines RTLD_PRIVATE_ERRNO and USE_DL_SYSINFO. */
+#include <dl-sysdep.h>
+
+#include <tls.h>
+
+/* In order to get __set_errno() definition in INLINE_SYSCALL. */
+#ifndef __ASSEMBLER__
+# include <errno.h>
+#endif
+
+#undef SYS_ify
+#define SYS_ify(syscall_name) (__NR_##syscall_name)
+
+#ifdef __ASSEMBLER__
+/* Linux uses a negative return value to indicate syscall errors,
+ unlike most Unices, which use the condition codes' carry flag.
+
+ Since version 2.1 the return value of a system call might be
+ negative even if the call succeeded. E.g., the `lseek' system call
+ might return a large offset. Therefore we must not anymore test
+ for < 0, but test for a real error by making sure the value in R0
+ is a real error number. Linus said he will make sure the no syscall
+ returns a value in -1 .. -4095 as a valid result so we can safely
+ test with -4095. */
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args) \
+ .text; \
+ ENTRY (name); \
+ DO_CALL (syscall_name, args);
+
+# define GETGB \
+ grs t0, .Lgetpc; \
+.Lgetpc: \
+ lrw gb, .Lgetpc@GOTPC; \
+ addu gb, t0;
+
+# if IS_IN (libc)
+# ifdef __PIC__
+# define PSEUDO_RET \
+ btsti a0, 31; \
+ bf 1f; \
+ subi sp, 8; \
+ st.w lr, (sp); \
+ st.w gb, (sp, 4); \
+ GETGB; \
+ lrw a2, SYSCALL_ERROR@PLT; \
+ add a2, gb; \
+ ld.w a2, (a2); \
+ jsr a2; \
+ ld.w lr, (sp); \
+ ld.w gb, (sp, 4); \
+ addi sp, 8; \
+1: \
+ rts
+# else
+# define PSEUDO_RET \
+ btsti a0, 31; \
+ bf 1f; \
+ jmpi SYSCALL_ERROR; \
+1: \
+ rts
+# endif
+# else
+# ifdef __PIC__
+# define PSEUDO_RET \
+ btsti a0, 31; \
+ bf 1f; \
+ subi sp, 8; \
+ st.w lr, (sp); \
+ st.w gb, (sp, 4); \
+ GETGB; \
+ bsr SYSCALL_ERROR; \
+ ld.w lr, (sp); \
+ ld.w gb, (sp, 4); \
+ addi sp, 8; \
+1: \
+ rts
+# else
+# define PSEUDO_RET \
+ btsti a0, 31; \
+ bt SYSCALL_ERROR; \
+ rts
+# endif
+# endif
+
+# undef ret
+# define ret PSEUDO_RET
+
+# undef PSEUDO_END
+# define PSEUDO_END(name) \
+ .align 4; \
+ SYSCALL_ERROR_HANDLER; \
+ END (name)
+
+# undef PSEUDO_NOERRNO
+# define PSEUDO_NOERRNO(name, syscall_name, args) \
+ .text; \
+ ENTRY (name); \
+ DO_CALL (syscall_name, args)
+
+# define PSEUDO_RET_NOERRNO rts
+
+# undef ret_NOERRNO
+# define ret_NOERRNO PSEUDO_RET_NOERRNO
+
+# undef PSEUDO_END_NOERRNO
+# define PSEUDO_END_NOERRNO(name) END (name)
+
+/* The function has to return the error code. */
+# undef PSEUDO_ERRVAL
+# define PSEUDO_ERRVAL(name, syscall_name, args) \
+ .text; \
+ ENTRY (name) \
+ DO_CALL (syscall_name, args); \
+ not a0; \
+ addi a0, 1
+
+# undef PSEUDO_END_ERRVAL
+# define PSEUDO_END_ERRVAL(name) END (name)
+
+# define ret_ERRVAL rts
+
+# if !IS_IN (libc)
+# define SYSCALL_ERROR __local_syscall_error
+# if RTLD_PRIVATE_ERRNO
+# ifdef __PIC__
+# define SYSCALL_ERROR_HANDLER \
+__local_syscall_error: \
+ lrw a1, rtld_errno@PLT; \
+ addu a1, gb; \
+ ldw a1, (a1); \
+ rsubi a0, 0; \
+ stw a0, (a1); \
+ bmaski a0, 0; \
+ rts
+# else /* __PIC__ */
+# define SYSCALL_ERROR_HANDLER \
+__local_syscall_error: \
+ lrw a1, rtld_errno; \
+ rsubi a0, 0; \
+ stw a0, (a1); \
+ bmaski a0, 0; \
+ rts
+# endif /* __PIC__ */
+# else /* !RTLD_PRIVATE_ERRNO */
+# ifdef __PIC__
+# define SYSCALL_ERROR_HANDLER \
+__local_syscall_error: \
+ subi sp, 8; \
+ stw a0, (sp, 0); \
+ stw r15, (sp, 4); \
+ lrw a1, __errno_location@PLT; \
+ add a1, gb; \
+ ldw a1, (a1); \
+ jsr a1; \
+ ldw a1, (sp, 0); /* load errno*/ \
+ ldw r15, (sp, 4); \
+ addi sp, 8; \
+ movi a2, 0; \
+ rsub a1, a1, a2; \
+ stw a1, (a0); \
+ bmaski a0, 0; \
+ rts
+# else
+# define SYSCALL_ERROR_HANDLER \
+__local_syscall_error: \
+ subi sp, 8; \
+ stw a0, (sp, 0); \
+ stw r15, (sp, 4); \
+ lrw a1, __errno_location; \
+ jsr a1; \
+ ldw a1, (sp, 0); /* load errno */ \
+ ldw r15, (sp, 4); \
+ addi sp, 8; \
+ movi a2, 0; \
+ rsub a1, a1, a2; \
+ stw a1, (a0); \
+ bmaski a0, 0; \
+ rts
+# endif /* __PIC__ */
+# endif/* RTLD_PRIVATE_ERROR */
+# else
+# define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */
+# define SYSCALL_ERROR __syscall_error
+# endif/* IS_IN (libc) */
+
+/* define DO_CALL */
+# undef DO_CALL
+# define DO_CALL(syscall_name, args) \
+ DOARGS_##args; \
+ lrw r7, SYS_ify(syscall_name); \
+ trap 0; \
+ UNDOARGS_##args
+
+# undef DOARGS_0
+# define DOARGS_0 \
+ subi sp, 8; \
+ cfi_adjust_cfa_offset (8); \
+ stw r7, (sp, 0); \
+ cfi_rel_offset (r7, 0);
+
+# undef DOARGS_1
+# define DOARGS_1 DOARGS_0
+# undef DOARGS_2
+# define DOARGS_2 DOARGS_0
+# undef DOARGS_3
+# define DOARGS_3 DOARGS_0
+# undef DOARGS_4
+# define DOARGS_4 DOARGS_0
+# undef DOARGS_5
+# define DOARGS_5 \
+ subi sp, 8; \
+ cfi_adjust_cfa_offset (8); \
+ stw r7, (sp, 0); \
+ cfi_rel_offset (7, 0); \
+ stw r4, (sp, 4); \
+ cfi_rel_offset (4, 4); \
+ ldw r4, (sp, 8)
+# undef DOARGS_6
+# define DOARGS_6 \
+ subi sp, 16; \
+ cfi_adjust_cfa_offset (16); \
+ stw r7, (sp, 0); \
+ cfi_rel_offset (7, 0); \
+ stw r4, (sp, 4); \
+ cfi_rel_offset (4, 4); \
+ stw r5, (sp, 8); \
+ cfi_rel_offset (5, 8); \
+ ldw r4, (sp, 16); \
+ ldw r5, (sp, 20)
+
+# undef UNDOARGS_0
+# define UNDOARGS_0 \
+ ldw r7, (sp, 0); \
+ cfi_restore (r7); \
+ addi sp, 8; \
+ cfi_adjust_cfa_offset (-8);
+
+# undef UNDOARGS_1
+# define UNDOARGS_1 UNDOARGS_0
+# undef UNDOARGS_2
+# define UNDOARGS_2 UNDOARGS_0
+# undef UNDOARGS_3
+# define UNDOARGS_3 UNDOARGS_0
+# undef UNDOARGS_4
+# define UNDOARGS_4 UNDOARGS_0
+# undef UNDOARGS_5
+# define UNDOARGS_5 \
+ ldw r7, (sp, 0); \
+ cfi_restore (r4); \
+ ldw r4, (sp, 4); \
+ cfi_restore (r4); \
+ addi sp, 8; \
+ cfi_adjust_cfa_offset (-8);
+
+# undef UNDOARGS_6
+# define UNDOARGS_6 \
+ ldw r7, (sp, 0); \
+ cfi_restore (r7); \
+ ldw r4, (sp, 4); \
+ cfi_restore (r4); \
+ ldw r5, (sp, 8); \
+ cfi_restore (r5); \
+ addi sp, 16; \
+ cfi_adjust_cfa_offset (-16);
+
+#else /* not __ASSEMBLER__ */
+
+/* Define a macro which expands into the inline wrapper code for a system
+ call. */
+# undef INLINE_SYSCALL
+# define INLINE_SYSCALL(name, nr, args...) \
+ ({ unsigned int _sys_result = INTERNAL_SYSCALL (name, , nr, args); \
+ if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (_sys_result,), 0)) \
+ { \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (_sys_result, )); \
+ _sys_result = (unsigned int) -1; \
+ } \
+ (int) _sys_result; })
+
+# undef INTERNAL_SYSCALL_DECL
+# define INTERNAL_SYSCALL_DECL(err) do { } while (0)
+
+# undef INTERNAL_SYSCALL_ERROR_P
+# define INTERNAL_SYSCALL_ERROR_P(val, err) \
+ ((unsigned int) (val) >= 0xffffff01u)
+
+# undef INTERNAL_SYSCALL_ERRNO
+# define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
+
+# undef INTERNAL_SYSCALL_RAW
+# define INTERNAL_SYSCALL_RAW0(name, err, dummy...) \
+ ({unsigned int __sys_result; \
+ { \
+ register int _a1 __asm__ ("a0"), _nr __asm__ ("r7"); \
+ _nr = name; \
+ __asm__ __volatile__ ("trap 0 \n\t" \
+ : "=r" (_a1) \
+ : "r" (_nr) \
+ : "memory"); \
+ __sys_result = _a1; \
+ } \
+ (int) __sys_result; })
+
+# define INTERNAL_SYSCALL_RAW1(name, err, arg1) \
+ ({unsigned int __sys_result; \
+ register int _tmp_arg1 = (int)(arg1); \
+ { \
+ register int _a1 __asm__ ("a0"), _nr __asm__ ("r7"); \
+ _a1 = _tmp_arg1; \
+ _nr = name; \
+ __asm__ __volatile__ ("trap 0 \n\t" \
+ : "=r" (_a1) \
+ : "r" (_nr), "r" (_a1) \
+ : "memory"); \
+ __sys_result = _a1; \
+ } \
+ (int) __sys_result; })
+
+# define INTERNAL_SYSCALL_RAW2(name, err, arg1, arg2) \
+ ({unsigned int __sys_result; \
+ register int _tmp_arg1 = (int)(arg1), _tmp_arg2 = (int)(arg2); \
+ { \
+ register int _nr __asm__ ("r7"); \
+ register int _a1 __asm__ ("a0"), _a2 __asm__ ("a1"); \
+ _a1 = _tmp_arg1, _a2 = _tmp_arg2; \
+ _nr = name; \
+ __asm__ __volatile__ ("trap 0 \n\t" \
+ : "=r" (_a1) \
+ : "r" (_nr), "r" (_a1), "r" (_a2) \
+ : "memory"); \
+ __sys_result = _a1; \
+ } \
+ (int) __sys_result; })
+
+# define INTERNAL_SYSCALL_RAW3(name, err, arg1, arg2, arg3) \
+ ({unsigned int __sys_result; \
+ register int _tmp_arg1 = (int)(arg1), _tmp_arg2 = (int)(arg2); \
+ register int _tmp_arg3 = (int)(arg3); \
+ { \
+ register int _nr __asm__ ("r7"); \
+ register int _a1 __asm__ ("a0"), _a2 __asm__ ("a1"); \
+ register int _a3 __asm__ ("a2"); \
+ _a1 = _tmp_arg1; \
+ _a2 = _tmp_arg2; \
+ _a3 = _tmp_arg3; \
+ _nr = name; \
+ __asm__ __volatile__ ("trap 0 \n\t" \
+ : "=r" (_a1) \
+ : "r" (_nr), "r" (_a1), "r" (_a2), \
+ "r" (_a3) \
+ : "memory"); \
+ __sys_result = _a1; \
+ } \
+ (int) __sys_result; })
+
+# define INTERNAL_SYSCALL_RAW4(name, err, arg1, arg2, arg3, arg4) \
+ ({unsigned int __sys_result; \
+ register int _tmp_arg1 = (int)(arg1), _tmp_arg2 = (int)(arg2); \
+ register int _tmp_arg3 = (int)(arg3), _tmp_arg4 = (int)(arg4); \
+ { \
+ register int _nr __asm__ ("r7"); \
+ register int _a1 __asm__ ("a0"), _a2 __asm__ ("a1"); \
+ register int _a3 __asm__ ("a2"), _a4 __asm__ ("a3"); \
+ _a1 = _tmp_arg1, _a2 = _tmp_arg2, _a3 = _tmp_arg3; \
+ _a4 = _tmp_arg4; \
+ _nr = name; \
+ __asm__ __volatile__ ("trap 0 \n\t" \
+ : "=r" (_a1) \
+ : "r" (_nr), "r" (_a1), "r" (_a2), \
+ "r" (_a3), "r" (_a4) \
+ : "memory"); \
+ __sys_result = _a1; \
+ } \
+ (int) __sys_result; })
+
+# define INTERNAL_SYSCALL_RAW5(name, err, arg1, arg2, arg3, arg4, \
+ arg5) \
+ ({unsigned int __sys_result; \
+ register int _tmp_arg1 = (int)(arg1), _tmp_arg2 = (int)(arg2); \
+ register int _tmp_arg3 = (int)(arg3), _tmp_arg4 = (int)(arg4); \
+ register int _tmp_arg5 = (int)(arg5); \
+ { \
+ register int _nr __asm__ ("r7"); \
+ register int _a1 __asm__ ("a0"), _a2 __asm__ ("a1"); \
+ register int _a3 __asm__ ("a2"), _a4 __asm__ ("a3"); \
+ register int _a5 __asm__ ("r4"); \
+ _a1 = _tmp_arg1, _a2 = _tmp_arg2, _a3 = _tmp_arg3; \
+ _a4 = _tmp_arg4, _a5 = _tmp_arg5; \
+ _nr = name; \
+ __asm__ __volatile__ ("trap 0 \n\t" \
+ : "=r" (_a1) \
+ : "r" (_nr), "r" (_a1), "r" (_a2), \
+ "r" (_a3), "r" (_a4), "r" (_a5) \
+ : "memory"); \
+ __sys_result = _a1; \
+ } \
+ (int) __sys_result; })
+
+# define INTERNAL_SYSCALL_RAW6(name, err, arg1, arg2, arg3, arg4, \
+ arg5, arg6) \
+ ({unsigned int __sys_result; \
+ register int _tmp_arg1 = (int)(arg1), _tmp_arg2 = (int)(arg2); \
+ register int _tmp_arg3 = (int)(arg3), _tmp_arg4 = (int)(arg4); \
+ register int _tmp_arg5 = (int)(arg5), _tmp_arg6 = (int)(arg6); \
+ { \
+ register int _nr __asm__ ("r7"); \
+ register int _a1 __asm__ ("a0"), _a2 __asm__ ("a1"); \
+ register int _a3 __asm__ ("a2"), _a4 __asm__ ("a3"); \
+ register int _a5 __asm__ ("r4"), _a6 __asm__ ("r5"); \
+ _a1 = _tmp_arg1, _a2 = _tmp_arg2, _a3 = _tmp_arg3; \
+ _a4 = _tmp_arg4, _a5 = _tmp_arg5, _a6 = _tmp_arg6; \
+ _nr = name; \
+ __asm__ __volatile__ ("trap 0 \n\t" \
+ : "=r" (_a1) \
+ : "r" (_nr), "r" (_a1), "r" (_a2), \
+ "r" (_a3), "r" (_a4), "r" (_a5), \
+ "r" (_a6) \
+ : "memory"); \
+ __sys_result = _a1; \
+ } \
+ (int) __sys_result; })
+
+# define INTERNAL_SYSCALL_RAW7(name, err, arg1, arg2, arg3, arg4, \
+ arg5, arg6, arg7) \
+ ({unsigned int __sys_result; \
+ register int _tmp_arg1 = (int)(arg1), _tmp_arg2 = (int)(arg2); \
+ register int _tmp_arg3 = (int)(arg3), _tmp_arg4 = (int)(arg4); \
+ register int _tmp_arg5 = (int)(arg5), _tmp_arg6 = (int)(arg6); \
+ register int _tmp_arg7 = (int)(arg7); \
+ { \
+ register int _nr __asm__ ("r7"); \
+ register int _a1 __asm__ ("a0"), _a2 __asm__ ("a1"); \
+ register int _a3 __asm__ ("a2"), _a4 __asm__ ("a3"); \
+ register int _a5 __asm__ ("r4"), _a6 __asm__ ("r5"); \
+ register int _a7 __asm__ ("r6"); \
+ _a1 = _tmp_arg1, _a2 = _tmp_arg2, _a3 = _tmp_arg3; \
+ _a4 = _tmp_arg4, _a5 = _tmp_arg5, _a6 = _tmp_arg6; \
+ _a7 = _tmp_arg7; \
+ _nr = name; \
+ __asm__ __volatile__ ("trap 0 \n\t" \
+ : "=r" (_a1) \
+ : "r" (_nr), "r" (_a1), "r" (_a2), \
+ "r" (_a3), "r" (_a4), "r" (_a5), \
+ "r" (_a6), "r" (_a7) \
+ : "memory"); \
+ __sys_result = _a1; \
+ } \
+ (int) __sys_result; })
+
+# undef INTERNAL_SYSCALL
+# define INTERNAL_SYSCALL(name, err, nr, args...) \
+ INTERNAL_SYSCALL_RAW##nr(SYS_ify(name), err, args)
+
+# undef INTERNAL_SYSCALL_NCS
+# define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \
+ INTERNAL_SYSCALL_RAW##nr (number, err, args)
+
+#endif /* __ASSEMBLER__ */
+
+/* Pointer mangling support. */
+#if (IS_IN (rtld) || \
+ (!defined SHARED && (IS_IN (libc) || IS_IN (libpthread))))
+# ifdef __ASSEMBLER__
+# define PTR_MANGLE(dst, src, guard) \
+ grs t0, 1f; \
+1: \
+ lrw guard, 1b@GOTPC; \
+ addu t0, guard; \
+ lrw guard, __pointer_chk_guard_local@GOT; \
+ ldr.w guard, (t0, guard << 0); \
+ ldw guard, (guard, 0); \
+ xor dst, src, guard;
+# define PTR_DEMANGLE(dst, src, guard) PTR_MANGLE (dst, src, guard)
+# define PTR_MANGLE2(dst, src, guard) \
+ xor dst, src, guard
+# define PTR_DEMANGLE2(dst, src, guard) PTR_MANGLE2 (dst, src, guard)
+# else
+extern uintptr_t __pointer_chk_guard_local;
+# define PTR_MANGLE(var) \
+ (var) = (__typeof (var)) ((uintptr_t) (var) ^ __pointer_chk_guard_local)
+# define PTR_DEMANGLE(var) PTR_MANGLE (var)
+# endif
+#else
+# ifdef __ASSEMBLER__
+# define PTR_MANGLE(dst, src, guard) \
+ grs t0, 1f; \
+1: \
+ lrw guard, 1b@GOTPC; \
+ addu t0, guard; \
+ lrw guard, __pointer_chk_guard@GOT; \
+ ldr.w guard, (t0, guard << 0); \
+ ldw guard, (guard, 0); \
+ xor dst, src, guard;
+# define PTR_DEMANGLE(dst, src, guard) PTR_MANGLE (dst, src, guard)
+# define PTR_MANGLE2(dst, src, guard) \
+ xor dst, src, guard
+# define PTR_DEMANGLE2(dst, src, guard) PTR_MANGLE2 (dst, src, guard)
+# else
+extern uintptr_t __pointer_chk_guard;
+# define PTR_MANGLE(var) \
+ (var) = (__typeof (var)) ((uintptr_t) (var) ^ __pointer_chk_guard)
+# define PTR_DEMANGLE(var) PTR_MANGLE (var)
+# endif
+#endif
+
+#endif /* linux/csky/sysdep.h */
--
2.7.4
^ permalink raw reply [flat|nested] 57+ messages in thread* Re: [PATCH v4 06/13] C-SKY: Linux ABI
2018-09-12 2:57 ` [PATCH v4 06/13] C-SKY: Linux ABI Mao Han
@ 2018-09-12 13:40 ` Arnd Bergmann
2018-09-12 14:21 ` Joseph Myers
2018-09-13 8:17 ` [PATCH v4 06/13] C-SKY: Linux ABI Mao Han
0 siblings, 2 replies; 57+ messages in thread
From: Arnd Bergmann @ 2018-09-12 13:40 UTC (permalink / raw)
To: Mao Han; +Cc: GNU C Library, c-sky_gcc_upstream, gnu-csky
On Wed, Sep 12, 2018 at 4:58 AM Mao Han <han_mao@c-sky.com> wrote:
>
> Linux-specific code that is required for maintaining ABI compatibility.
> This doesn't contain the actual system call interface.
>
> * sysdeps/unix/sysv/linux/csky/Versions: Likewise.
> * sysdeps/unix/sysv/linux/csky/bits/mman.h: New file.
> * sysdeps/unix/sysv/linux/csky/bits/shm.h: Likewise.
> * sysdeps/unix/sysv/linux/csky/c++-types.data: Likewise.
> * sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym: Likewise.
> * sysdeps/unix/sysv/linux/csky/ipc_priv.h: Likewise.
> * sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h: Likewise.
> * sysdeps/unix/sysv/linux/csky/kernel-features.h: Likewise.
> * sysdeps/unix/sysv/linux/csky/localplt.data: Likewise.
> * sysdeps/unix/sysv/linux/csky/makecontext.c: Likewise.
> * sysdeps/unix/sysv/linux/csky/profil-counter.h: Likewise.
> * sysdeps/unix/sysv/linux/csky/register-dump.h: Likewise.
> * sysdeps/unix/sysv/linux/csky/shlib-versions: Likewise.
> * sysdeps/unix/sysv/linux/csky/sigcontextinfo.h: Likewise.
> * sysdeps/unix/sysv/linux/csky/sys/cachectl.h: Likewise.
> * sysdeps/unix/sysv/linux/csky/sys/procfs.h: Likewise.
> * sysdeps/unix/sysv/linux/csky/sys/ucontext.h: Likewise.
> * sysdeps/unix/sysv/linux/csky/sys/user.h: Likewise.
> * sysdeps/unix/sysv/linux/csky/sysdep.h: Likewise.
> ---
> sysdeps/unix/sysv/linux/csky/Versions | 5 +
> sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym | 32 ++
> sysdeps/unix/sysv/linux/csky/bits/mman.h | 44 ++
> sysdeps/unix/sysv/linux/csky/bits/shm.h | 104 +++++
> sysdeps/unix/sysv/linux/csky/c++-types.data | 67 +++
> sysdeps/unix/sysv/linux/csky/ipc_priv.h | 21 +
> sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h | 6 +
> sysdeps/unix/sysv/linux/csky/kernel-features.h | 23 +
> sysdeps/unix/sysv/linux/csky/localplt.data | 19 +
> sysdeps/unix/sysv/linux/csky/makecontext.c | 74 +++
> sysdeps/unix/sysv/linux/csky/profil-counter.h | 31 ++
> sysdeps/unix/sysv/linux/csky/register-dump.h | 193 ++++++++
> sysdeps/unix/sysv/linux/csky/shlib-versions | 7 +
> sysdeps/unix/sysv/linux/csky/sigcontextinfo.h | 32 ++
> sysdeps/unix/sysv/linux/csky/sys/cachectl.h | 38 ++
> sysdeps/unix/sysv/linux/csky/sys/procfs.h | 123 +++++
> sysdeps/unix/sysv/linux/csky/sys/ucontext.h | 89 ++++
> sysdeps/unix/sysv/linux/csky/sys/user.h | 60 +++
> sysdeps/unix/sysv/linux/csky/sysdep.h | 534 ++++++++++++++++++++++
I'm surprised to see copies of bits/shm.h, bits/mman.h and sys/procfs.h.
Since the kernel port just uses the generic interfaces that all other
architectures used in the past decade, shouldn't the glibc defaults
match be enough here?
Arnd
^ permalink raw reply [flat|nested] 57+ messages in thread* Re: [PATCH v4 06/13] C-SKY: Linux ABI
2018-09-12 13:40 ` Arnd Bergmann
@ 2018-09-12 14:21 ` Joseph Myers
2018-09-12 15:34 ` Arnd Bergmann
2018-09-13 8:17 ` [PATCH v4 06/13] C-SKY: Linux ABI Mao Han
1 sibling, 1 reply; 57+ messages in thread
From: Joseph Myers @ 2018-09-12 14:21 UTC (permalink / raw)
To: Arnd Bergmann; +Cc: Mao Han, GNU C Library, c-sky_gcc_upstream, gnu-csky
On Wed, 12 Sep 2018, Arnd Bergmann wrote:
> I'm surprised to see copies of bits/shm.h, bits/mman.h and sys/procfs.h.
> Since the kernel port just uses the generic interfaces that all other
> architectures used in the past decade, shouldn't the glibc defaults
> match be enough here?
There's no generic bits/mman.h for systems using the Linux kernel; a lot
is shared through bits/mman-linux.h and bits/mman-shared.h, but all
architectures need their own bits/mman.h as well.
In practice there's no generic sys/procfs.h either
(sysdeps/unix/sysv/linux/sys/procfs.h exists but all architectures
override it - so if there's something in common between many architectures
such that they don't need their own files, it's quite likely that file
does not reflect whatever is common).
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 06/13] C-SKY: Linux ABI
2018-09-12 14:21 ` Joseph Myers
@ 2018-09-12 15:34 ` Arnd Bergmann
2018-09-12 21:28 ` struct elf_prstatus and Y2038 (was: Re: [PATCH v4 06/13] C-SKY: Linux ABI) Florian Weimer
0 siblings, 1 reply; 57+ messages in thread
From: Arnd Bergmann @ 2018-09-12 15:34 UTC (permalink / raw)
To: Joseph Myers; +Cc: Mao Han, GNU C Library, c-sky_gcc_upstream, gnu-csky
On Wed, Sep 12, 2018 at 5:18 PM Joseph Myers <joseph@codesourcery.com> wrote:
>
> On Wed, 12 Sep 2018, Arnd Bergmann wrote:
>
> > I'm surprised to see copies of bits/shm.h, bits/mman.h and sys/procfs.h.
> > Since the kernel port just uses the generic interfaces that all other
> > architectures used in the past decade, shouldn't the glibc defaults
> > match be enough here?
>
> There's no generic bits/mman.h for systems using the Linux kernel; a lot
> is shared through bits/mman-linux.h and bits/mman-shared.h, but all
> architectures need their own bits/mman.h as well.
Ok. I checked a couple that should be using the generic kernel
implementation and found that at least nios2, aarch64 and riscv
differ only in comments, so this is probably something that can
be improved by creating a common version.
> In practice there's no generic sys/procfs.h either
> (sysdeps/unix/sysv/linux/sys/procfs.h exists but all architectures
> override it - so if there's something in common between many architectures
> such that they don't need their own files, it's quite likely that file
> does not reflect whatever is common).
This one seems worse: looking at the same architectures above,
I find that at least nios2 is wrong: pr_uid/pr_gid are declared as
'unsigned short' here, compat to a signed 'long int' for riscv and
'unsigned int' for aarch64.
In the kernel, these are all 'unsigned int' except on some older 32-bit
architectures (arm, m68k, s390-32, sh, sparc32, sparc64, and
x86-32).
Aside from that, they are basically identical, except for the
regset array types that match the number of registers.
Speaking of this file, I think we still need a solution for elf_prstatus
containing a 'timeval' after time_t becomes 64-bit wide. I actually
have a patch to change the kernel header file declaring the
same structure, but I had not realized that glibc contains another
copy.
https://sourceware.org/glibc/wiki/Y2038ProofnessDesign mentions
that type, but not what to do about it. What I did in the kernel
was to change the type of pr_utime/pr_stime/pr_cutime/pr_cstime
to something that keeps using 'long' fields. Given that we can't
change the file format in an incompatible way, and that 32-bit
is sufficient here, that seemed like the most appropriate solution.
Arnd
^ permalink raw reply [flat|nested] 57+ messages in thread* struct elf_prstatus and Y2038 (was: Re: [PATCH v4 06/13] C-SKY: Linux ABI)
2018-09-12 15:34 ` Arnd Bergmann
@ 2018-09-12 21:28 ` Florian Weimer
2018-09-13 10:48 ` Arnd Bergmann
0 siblings, 1 reply; 57+ messages in thread
From: Florian Weimer @ 2018-09-12 21:28 UTC (permalink / raw)
To: Arnd Bergmann, Joseph Myers
Cc: Mao Han, GNU C Library, c-sky_gcc_upstream, gnu-csky
On 09/12/2018 05:34 PM, Arnd Bergmann wrote:
> Speaking of this file, I think we still need a solution for elf_prstatus
> containing a 'timeval' after time_t becomes 64-bit wide. I actually
> have a patch to change the kernel header file declaring the
> same structure, but I had not realized that glibc contains another
> copy.
>
> https://sourceware.org/glibc/wiki/Y2038ProofnessDesign mentions
> that type, but not what to do about it. What I did in the kernel
> was to change the type of pr_utime/pr_stime/pr_cutime/pr_cstime
> to something that keeps using 'long' fields. Given that we can't
> change the file format in an incompatible way, and that 32-bit
> is sufficient here, that seemed like the most appropriate solution.
Keeping 32 bits there looks reasonable. I thought we had a port where
time_t isn't long, but that doesn't seem to be the case.
Ah, I think it's actually s390, where suseconds_t is int, not long.
Presumably that will need a special case so that existing format
specifiers etc. are not disturbed unnecessarily.
Thanks,
Florian
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: struct elf_prstatus and Y2038 (was: Re: [PATCH v4 06/13] C-SKY: Linux ABI)
2018-09-12 21:28 ` struct elf_prstatus and Y2038 (was: Re: [PATCH v4 06/13] C-SKY: Linux ABI) Florian Weimer
@ 2018-09-13 10:48 ` Arnd Bergmann
2018-09-13 10:56 ` struct elf_prstatus and Y2038 Florian Weimer
0 siblings, 1 reply; 57+ messages in thread
From: Arnd Bergmann @ 2018-09-13 10:48 UTC (permalink / raw)
To: Florian Weimer
Cc: Joseph Myers, Mao Han, GNU C Library, c-sky_gcc_upstream, gnu-csky
On Wed, Sep 12, 2018 at 11:28 PM Florian Weimer <fweimer@redhat.com> wrote:
>
> On 09/12/2018 05:34 PM, Arnd Bergmann wrote:
> > Speaking of this file, I think we still need a solution for elf_prstatus
> > containing a 'timeval' after time_t becomes 64-bit wide. I actually
> > have a patch to change the kernel header file declaring the
> > same structure, but I had not realized that glibc contains another
> > copy.
> >
> > https://sourceware.org/glibc/wiki/Y2038ProofnessDesign mentions
> > that type, but not what to do about it. What I did in the kernel
> > was to change the type of pr_utime/pr_stime/pr_cutime/pr_cstime
> > to something that keeps using 'long' fields. Given that we can't
> > change the file format in an incompatible way, and that 32-bit
> > is sufficient here, that seemed like the most appropriate solution.
>
> Keeping 32 bits there looks reasonable. I thought we had a port where
> time_t isn't long, but that doesn't seem to be the case.
Ok. I'll change it to 'struct __kernel_old_timeval' in the kernel
headers then, keeping the existing definition we have for timeval.
I did that patch a while ago, but think I've never posted it
for inclusion so far.
The same thing also gets used in the implementation for
the wait4()/waitid() and getrusage() syscalls, which carry the same
data as the core file, as well as the various VDSO implementations
that we can't change over.
I'm still undecided on whether we want a version of waitid and
getrusage that takes a 64-bit timespec or 64-bit timeval
for consistency, or just let the libc deal with the conversion from
the 32-bit timeval here.
> Ah, I think it's actually s390, where suseconds_t is int, not long.
Odd: in the kernel, suseconds_t is long on s390, but int on
sparc and parisc. Were you thinking of sparc64 instead of s390
maybe? I would guess that parisc64 is actually wrong here, but
since there are not a lot of users on parisc and they tend to run
32-bit user space, it's plausible that this never got caught.
I totally missed the sparc/parisc oddity about suseconds_t
in the past, I'll have to modify my patch for that.
Arnd
^ permalink raw reply [flat|nested] 57+ messages in thread* Re: struct elf_prstatus and Y2038
2018-09-13 10:48 ` Arnd Bergmann
@ 2018-09-13 10:56 ` Florian Weimer
0 siblings, 0 replies; 57+ messages in thread
From: Florian Weimer @ 2018-09-13 10:56 UTC (permalink / raw)
To: Arnd Bergmann
Cc: Joseph Myers, Mao Han, GNU C Library, c-sky_gcc_upstream, gnu-csky
On 09/13/2018 12:48 PM, Arnd Bergmann wrote:
>> Ah, I think it's actually s390, where suseconds_t is int, not long.
> Odd: in the kernel, suseconds_t is long on s390, but int on
> sparc and parisc. Were you thinking of sparc64 instead of s390
> maybe?
Correct; sparc it is. I was off by a line.
Thanks,
Florian
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 06/13] C-SKY: Linux ABI
2018-09-12 13:40 ` Arnd Bergmann
2018-09-12 14:21 ` Joseph Myers
@ 2018-09-13 8:17 ` Mao Han
2018-09-13 8:46 ` Arnd Bergmann
1 sibling, 1 reply; 57+ messages in thread
From: Mao Han @ 2018-09-13 8:17 UTC (permalink / raw)
To: Arnd Bergmann; +Cc: c-sky_gcc_upstream, gnu-csky, libc-alpha
On Wed, Sep 12, 2018 at 03:40:35PM +0200, Arnd Bergmann wrote:
> On Wed, Sep 12, 2018 at 4:58 AM Mao Han <han_mao@c-sky.com> wrote:
> >
> > Linux-specific code that is required for maintaining ABI compatibility.
> > This doesn't contain the actual system call interface.
> > sysdeps/unix/sysv/linux/csky/sys/user.h | 60 +++
> > sysdeps/unix/sysv/linux/csky/sysdep.h | 534 ++++++++++++++++++++++
>
> I'm surprised to see copies of bits/shm.h, bits/mman.h and sys/procfs.h.
> Since the kernel port just uses the generic interfaces that all other
> architectures used in the past decade, shouldn't the glibc defaults
> match be enough here?
>
> Arnd
We have SHMLBA defined to __getpagesize () << 2 in the linux port not
__getpagesize () in the generic version in glibc. So an arch specific
bits/shm.h seems needed.
The generic sys/procfs.h in glibc define pr_uid/pr_gid as 'unsigned short',
we have __kernel_uid_t define as "unsigned int" in linux/include/uapi/
asm-generic/posix_types.h. So I need an arch specific sys/procfs.h
with pr_uid/pr_gid define as "unsigned int".
Thanks
Han Mao
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 06/13] C-SKY: Linux ABI
2018-09-13 8:17 ` [PATCH v4 06/13] C-SKY: Linux ABI Mao Han
@ 2018-09-13 8:46 ` Arnd Bergmann
2018-09-13 15:32 ` [gnu-csky] " Joseph Myers
0 siblings, 1 reply; 57+ messages in thread
From: Arnd Bergmann @ 2018-09-13 8:46 UTC (permalink / raw)
To: Mao Han; +Cc: c-sky_gcc_upstream, gnu-csky, GNU C Library
On Thu, Sep 13, 2018 at 10:17 AM Mao Han <han_mao@c-sky.com> wrote:
>
> On Wed, Sep 12, 2018 at 03:40:35PM +0200, Arnd Bergmann wrote:
> > On Wed, Sep 12, 2018 at 4:58 AM Mao Han <han_mao@c-sky.com> wrote:
> > >
> > > Linux-specific code that is required for maintaining ABI compatibility.
> > > This doesn't contain the actual system call interface.
> > > sysdeps/unix/sysv/linux/csky/sys/user.h | 60 +++
> > > sysdeps/unix/sysv/linux/csky/sysdep.h | 534 ++++++++++++++++++++++
> >
> > I'm surprised to see copies of bits/shm.h, bits/mman.h and sys/procfs.h.
> > Since the kernel port just uses the generic interfaces that all other
> > architectures used in the past decade, shouldn't the glibc defaults
> > match be enough here?
>
> We have SHMLBA defined to __getpagesize () << 2 in the linux port not
> __getpagesize () in the generic version in glibc. So an arch specific
> bits/shm.h seems needed.
Right, that makes sense.You need that for aliasing virtually indexed
caches, correct?
In the kernel, I'd probably try to change the generic file to allow an
architecture specific override, but I don't know what
the policy for this is in glibc.
> The generic sys/procfs.h in glibc define pr_uid/pr_gid as 'unsigned short',
> we have __kernel_uid_t define as "unsigned int" in linux/include/uapi/
> asm-generic/posix_types.h. So I need an arch specific sys/procfs.h
> with pr_uid/pr_gid define as "unsigned int".
This sounds like something that should be improved in glibc, by
changing the default to the common case, and letting the less
common ones override it.
Here is what I see in glibc:
sysdeps/unix/sysv/linux/aarch64/sys/procfs.h: unsigned int pr_uid;
sysdeps/unix/sysv/linux/alpha/sys/procfs.h: unsigned int pr_uid;
sysdeps/unix/sysv/linux/arm/sys/procfs.h: unsigned short int pr_uid;
sysdeps/unix/sysv/linux/hppa/sys/procfs.h: unsigned int pr_uid;
sysdeps/unix/sysv/linux/ia64/sys/procfs.h: unsigned int pr_uid;
sysdeps/unix/sysv/linux/m68k/sys/procfs.h: unsigned short int pr_uid;
sysdeps/unix/sysv/linux/microblaze/sys/procfs.h: unsigned short int pr_uid;
sysdeps/unix/sysv/linux/mips/sys/procfs.h: long pr_uid;
sysdeps/unix/sysv/linux/nios2/sys/procfs.h: unsigned short int pr_uid;
sysdeps/unix/sysv/linux/powerpc/sys/procfs.h: __uid_t pr_uid; # __U32_TYPE
sysdeps/unix/sysv/linux/riscv/sys/procfs.h: long int pr_uid;
sysdeps/unix/sysv/linux/s390/sys/procfs.h: unsigned int pr_uid; # s390-64
sysdeps/unix/sysv/linux/s390/sys/procfs.h: unsigned short int
pr_uid; # s390-32
sysdeps/unix/sysv/linux/sh/sys/procfs.h: unsigned short int pr_uid;
sysdeps/unix/sysv/linux/sparc/sys/procfs.h: unsigned int pr_uid; # sparc64
sysdeps/unix/sysv/linux/sparc/sys/procfs.h: unsigned short int
pr_uid; # sparc32
sysdeps/unix/sysv/linux/x86/sys/procfs.h: unsigned short int pr_uid; # i386
sysdeps/unix/sysv/linux/x86/sys/procfs.h: unsigned int pr_uid; # x86-64
sysdeps/unix/sysv/linux/sys/procfs.h: unsigned short int pr_uid; #
everything else
and what we have in the kernel:
arch/arm/include/uapi/asm/posix_types.h:typedef unsigned short
__kernel_uid_t;
arch/m68k/include/uapi/asm/posix_types.h:typedef unsigned short __kernel_uid_t;
arch/s390/include/uapi/asm/posix_types.h:typedef unsigned short
__kernel_uid_t; # s390-32
arch/s390/include/uapi/asm/posix_types.h:typedef unsigned int
__kernel_uid_t; # s390-64
arch/sh/include/uapi/asm/posix_types_32.h:typedef unsigned short
__kernel_uid_t;
arch/sparc/include/uapi/asm/posix_types.h:typedef unsigned short
__kernel_uid_t; # sparc32
arch/x86/include/uapi/asm/posix_types_32.h:typedef unsigned short
__kernel_uid_t; # i386
include/uapi/asm-generic/posix_types.h:typedef unsigned int
__kernel_uid_t; # everything else
From what I can tell, mips64, riscv64, nios2, and microblaze are all wrong, and
the generic default would be wrong as well if picked up by anything else (but
nothing seems to use it).
Arnd
^ permalink raw reply [flat|nested] 57+ messages in thread* Re: [gnu-csky] [PATCH v4 06/13] C-SKY: Linux ABI
2018-09-13 8:46 ` Arnd Bergmann
@ 2018-09-13 15:32 ` Joseph Myers
2018-09-13 16:35 ` Joseph Myers
2018-09-13 20:31 ` Arnd Bergmann
0 siblings, 2 replies; 57+ messages in thread
From: Joseph Myers @ 2018-09-13 15:32 UTC (permalink / raw)
To: Arnd Bergmann; +Cc: Mao Han, gnu-csky, GNU C Library, c-sky_gcc_upstream
On Thu, 13 Sep 2018, Arnd Bergmann wrote:
> From what I can tell, mips64, riscv64, nios2, and microblaze are all wrong, and
> the generic default would be wrong as well if picked up by anything else (but
> nothing seems to use it).
A question for cleaning this up and possibly unifying versions of this
header: for multi-ABI architectures, in userspace, what are these
structures meant to refer to? The structures that would be produced by a
core dump for the current process, as opposed to those that might be
produced by a core dump for another ABI?
I can confirm that the struct elf_prpsinfo defined in sys/procfs.h for
MIPS n64 has size 0x90 whereas an n64 core dump has data size 0x88 for
NT_PRPSINFO, indicating the pr_uid / pr_gid types are indeed wrong. But
I'm concerned here about n32 and about other fields in the structure.
The code (dating back to the original addition of support for 64-bit MIPS
ABIs to glibc in 2003) uses type unsigned long long int for pr_flag for
n32. But if I core dump an n32 process, I get 0x80 for the size of
NT_PRPSINFO (while the userspace structure has size 0x88). And similarly
there are n32 conditionals in struct elf_prstatus - the core dump has size
0x1b8 for NT_PRSTATUS but the userspace structure has size 0x1c0. If the
structure is meant to correspond to the current ABI, that suggests those
n32 conditionals are wrong (the conditional on the definition of
elf_greg_t, however, is correct, as n32 does use 64-bit registers).
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [gnu-csky] [PATCH v4 06/13] C-SKY: Linux ABI
2018-09-13 15:32 ` [gnu-csky] " Joseph Myers
@ 2018-09-13 16:35 ` Joseph Myers
2018-09-13 20:47 ` Arnd Bergmann
2018-09-13 20:31 ` Arnd Bergmann
1 sibling, 1 reply; 57+ messages in thread
From: Joseph Myers @ 2018-09-13 16:35 UTC (permalink / raw)
To: Arnd Bergmann; +Cc: Mao Han, gnu-csky, GNU C Library, c-sky_gcc_upstream
On Thu, 13 Sep 2018, Joseph Myers wrote:
> On Thu, 13 Sep 2018, Arnd Bergmann wrote:
>
> > From what I can tell, mips64, riscv64, nios2, and microblaze are all wrong, and
> > the generic default would be wrong as well if picked up by anything else (but
> > nothing seems to use it).
>
> A question for cleaning this up and possibly unifying versions of this
> header: for multi-ABI architectures, in userspace, what are these
> structures meant to refer to? The structures that would be produced by a
> core dump for the current process, as opposed to those that might be
> produced by a core dump for another ABI?
Also, I tried writing a test for the glibc testsuite to verify
compatibility of the layout of these structures in the glibc and Linux
headers, but found that a simple
#include <linux/elfcore.h>
using the installed uapi headers doesn't compile, because of unknown type
names size_t, elf_greg_t, elf_gregset_t, elf_fpregset_t, elf_fpxregset_t,
pid_t. And indeed, e.g. elf_greg_t is not defined in any of the uapi
headers, for many architectures. What are the Linux kernel expectations
regarding installed uapi headers actually being usable from userspace
without needing additional type definitions provided by the user?
If that include worked, and produced the expected layout for the ABI used
in the current compilation, it would be very helpful for writing such
tests and ensuring bugs in this area can be found and fixed and avoided in
future (and more general tests of consistency between glibc and Linux
headers are probably possible as long as includes of the Linux headers
from make headers_install do reliably compile without external
dependencies).
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [gnu-csky] [PATCH v4 06/13] C-SKY: Linux ABI
2018-09-13 16:35 ` Joseph Myers
@ 2018-09-13 20:47 ` Arnd Bergmann
2018-09-13 20:59 ` Joseph Myers
0 siblings, 1 reply; 57+ messages in thread
From: Arnd Bergmann @ 2018-09-13 20:47 UTC (permalink / raw)
To: Joseph Myers; +Cc: Mao Han, gnu-csky, GNU C Library, c-sky_gcc_upstream
On Thu, Sep 13, 2018 at 6:35 PM Joseph Myers <joseph@codesourcery.com> wrote:
> On Thu, 13 Sep 2018, Joseph Myers wrote:
> > On Thu, 13 Sep 2018, Arnd Bergmann wrote:
> > > From what I can tell, mips64, riscv64, nios2, and microblaze are all wrong, and
> > > the generic default would be wrong as well if picked up by anything else (but
> > > nothing seems to use it).
> >
> > A question for cleaning this up and possibly unifying versions of this
> > header: for multi-ABI architectures, in userspace, what are these
> > structures meant to refer to? The structures that would be produced by a
> > core dump for the current process, as opposed to those that might be
> > produced by a core dump for another ABI?
>
> Also, I tried writing a test for the glibc testsuite to verify
> compatibility of the layout of these structures in the glibc and Linux
> headers, but found that a simple
>
> #include <linux/elfcore.h>
>
> using the installed uapi headers doesn't compile, because of unknown type
> names size_t, elf_greg_t, elf_gregset_t, elf_fpregset_t, elf_fpxregset_t,
> pid_t. And indeed, e.g. elf_greg_t is not defined in any of the uapi
> headers, for many architectures. What are the Linux kernel expectations
> regarding installed uapi headers actually being usable from userspace
> without needing additional type definitions provided by the user?
I think the expectations are generally mismatched with reality for our
headers. It's something that's been bugging me for a while and that
is not trivial to fix. We've had developers in the past that tried to
ensure that each exported uapi header can be included by itself,
but they (I forget who last worked on that) got too frustrated over
time to finish the job. What you found is clearly a bug on our side
and we should try to fix it.
> If that include worked, and produced the expected layout for the ABI used
> in the current compilation, it would be very helpful for writing such
> tests and ensuring bugs in this area can be found and fixed and avoided in
> future (and more general tests of consistency between glibc and Linux
> headers are probably possible as long as includes of the Linux headers
> from make headers_install do reliably compile without external
> dependencies).
Agreed. I think the main problem is that the kernel still provides certain
types that are also provided by the C library, and other kernel headers
have interdependencies with these.
One example that is particularly nasty are kernel structures that
are defined in terms of 'timeval' and 'timespec'. Those are provided
by either <time.h> or <linux/time.h>, with an inconsistent set of
#ifdef guards between them, and (in the future) incompatible definitions.
Some instances in the kernel need to get changed to a type that
is independent of the libc type (e.g. the elf_prstatus here), while
others need to use the libc type (e.g. ioctl structures with
CLOCK_REALTIME timestamp members), and then need to include
<time.h> in user space.
Arnd
^ permalink raw reply [flat|nested] 57+ messages in thread* Re: [gnu-csky] [PATCH v4 06/13] C-SKY: Linux ABI
2018-09-13 20:47 ` Arnd Bergmann
@ 2018-09-13 20:59 ` Joseph Myers
2018-09-13 21:32 ` Arnd Bergmann
0 siblings, 1 reply; 57+ messages in thread
From: Joseph Myers @ 2018-09-13 20:59 UTC (permalink / raw)
To: Arnd Bergmann; +Cc: Mao Han, gnu-csky, GNU C Library, c-sky_gcc_upstream
On Thu, 13 Sep 2018, Arnd Bergmann wrote:
> I think the expectations are generally mismatched with reality for our
> headers. It's something that's been bugging me for a while and that
> is not trivial to fix. We've had developers in the past that tried to
> ensure that each exported uapi header can be included by itself,
> but they (I forget who last worked on that) got too frustrated over
> time to finish the job. What you found is clearly a bug on our side
> and we should try to fix it.
I note the recent proposed changes to make uapi headers build as C++ just
fudges this issue, by providing dummy definitions of all the required
types. Which can't work for my purpose, because we need the actual
definition of elf_gregset_t that the kernel uses when generating core
dumps, not a dummy unsigned long[1] array, for tests of sizes and offsets
to work.
> Agreed. I think the main problem is that the kernel still provides certain
> types that are also provided by the C library, and other kernel headers
> have interdependencies with these.
The types in question (in both linux/elfcore.h and sys/procfs.h) are of
course types provided in both places - but in this case I'm not concerned
about being able to include both headers at once, my test includes each in
a separate file and compares the resulting sets of sizes and offsets (and
if the kernel header tried to delegate to the libc header to get the type
definitions when included from userspace code, that would defeat the point
of my test). If various types in the kernel header were to gain
__kernel_* prefixes, that would be fine for my purposes.
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [gnu-csky] [PATCH v4 06/13] C-SKY: Linux ABI
2018-09-13 20:59 ` Joseph Myers
@ 2018-09-13 21:32 ` Arnd Bergmann
2018-09-13 22:57 ` Joseph Myers
0 siblings, 1 reply; 57+ messages in thread
From: Arnd Bergmann @ 2018-09-13 21:32 UTC (permalink / raw)
To: Joseph Myers; +Cc: Mao Han, gnu-csky, GNU C Library, c-sky_gcc_upstream
On Thu, Sep 13, 2018 at 10:59 PM Joseph Myers <joseph@codesourcery.com> wrote:
>
> On Thu, 13 Sep 2018, Arnd Bergmann wrote:
>
> > I think the expectations are generally mismatched with reality for our
> > headers. It's something that's been bugging me for a while and that
> > is not trivial to fix. We've had developers in the past that tried to
> > ensure that each exported uapi header can be included by itself,
> > but they (I forget who last worked on that) got too frustrated over
> > time to finish the job. What you found is clearly a bug on our side
> > and we should try to fix it.
>
> I note the recent proposed changes to make uapi headers build as C++ just
> fudges this issue, by providing dummy definitions of all the required
> types. Which can't work for my purpose, because we need the actual
> definition of elf_gregset_t that the kernel uses when generating core
> dumps, not a dummy unsigned long[1] array, for tests of sizes and offsets
> to work.
Ah, I had missed that email thread. Since David Howells is now working
on the issue overall, I'm sure we will figure something out.
I haven't seen the part about the unsigned long[1] array, but I would
assume this is something that can and should be cahnged to make
it work for you.
> > Agreed. I think the main problem is that the kernel still provides certain
> > types that are also provided by the C library, and other kernel headers
> > have interdependencies with these.
>
> The types in question (in both linux/elfcore.h and sys/procfs.h) are of
> course types provided in both places - but in this case I'm not concerned
> about being able to include both headers at once, my test includes each in
> a separate file and compares the resulting sets of sizes and offsets (and
> if the kernel header tried to delegate to the libc header to get the type
> definitions when included from userspace code, that would defeat the point
> of my test). If various types in the kernel header were to gain
> __kernel_* prefixes, that would be fine for my purposes.
I need to think about this a bit more, and talk to a few other people.
A first step is probably to identify all structures that are provided
by both glibc and linux and classify them. In some cases, simply
renaming will be appropriate, in others it is not. One issue is that
we try to remain compatible with whatever behavior we had before,
and renaming e.g. 'struct stat' would work for glibc but not necessarily
all other libc implementations, unless we put some extra logic in
there to get the old name /unless/ we get included from glibc.
Another issue is structures that are intentionally ambiguous,
e.g. In the uapi headers there is an ioctl command definition
include/uapi/linux/ppdev.h:#define PPGETTIME _IOR(PP_IOCTL, 0x95,
struct timeval)
This gets included by an application passing a pointer to
a 'struct timeval' into the kernel, which now implements two
commands, based on codes
drivers/char/ppdev.c:#define PPGETTIME32 _IOR(PP_IOCTL, 0x95, s32[2])
drivers/char/ppdev.c:#define PPGETTIME64 _IOR(PP_IOCTL, 0x95, s64[2])
so it can work with any user space.
Arnd
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [gnu-csky] [PATCH v4 06/13] C-SKY: Linux ABI
2018-09-13 15:32 ` [gnu-csky] " Joseph Myers
2018-09-13 16:35 ` Joseph Myers
@ 2018-09-13 20:31 ` Arnd Bergmann
2018-09-13 20:49 ` Joseph Myers
1 sibling, 1 reply; 57+ messages in thread
From: Arnd Bergmann @ 2018-09-13 20:31 UTC (permalink / raw)
To: Joseph Myers; +Cc: Mao Han, gnu-csky, GNU C Library, c-sky_gcc_upstream
On Thu, Sep 13, 2018 at 5:32 PM Joseph Myers <joseph@codesourcery.com> wrote:
>
> On Thu, 13 Sep 2018, Arnd Bergmann wrote:
>
> > From what I can tell, mips64, riscv64, nios2, and microblaze are all wrong, and
> > the generic default would be wrong as well if picked up by anything else (but
> > nothing seems to use it).
>
> A question for cleaning this up and possibly unifying versions of this
> header: for multi-ABI architectures, in userspace, what are these
> structures meant to refer to? The structures that would be produced by a
> core dump for the current process, as opposed to those that might be
> produced by a core dump for another ABI?
The structures match the process that they describe. We use them for
three distinct things in the kernel:
/proc/kcore describes the kernel itself, in core dump format that can
be used with gdb etc to look at the currently running kernel
/proc/vmcore can be used for crash dump analysis when a kernel
crashes and we restart into a new kernel (kdump), making the
crashed one available in the same format
Core files generated by the kernel for running processes (the most
common case). A 32-bit task running on a 64-bit kernel should produce
the same core file as one running on a 32-bit kernel. At least that's
what the code is trying to do, looking up the sources I came across
a patch for a bug in that area[1]
> I can confirm that the struct elf_prpsinfo defined in sys/procfs.h for
> MIPS n64 has size 0x90 whereas an n64 core dump has data size 0x88 for
> NT_PRPSINFO, indicating the pr_uid / pr_gid types are indeed wrong. But
> I'm concerned here about n32 and about other fields in the structure.
> The code (dating back to the original addition of support for 64-bit MIPS
> ABIs to glibc in 2003) uses type unsigned long long int for pr_flag for
> n32. But if I core dump an n32 process, I get 0x80 for the size of
> NT_PRPSINFO (while the userspace structure has size 0x88). And similarly
> there are n32 conditionals in struct elf_prstatus - the core dump has size
> 0x1b8 for NT_PRSTATUS but the userspace structure has size 0x1c0. If the
> structure is meant to correspond to the current ABI, that suggests those
> n32 conditionals are wrong (the conditional on the definition of
> elf_greg_t, however, is correct, as n32 does use 64-bit registers).
We have four definitions in the kernel for these structures: The native
structure for the ELF implementation [2], the generic compat implementation[3]
for everything other than MIPS, and the two MIPS variants [4][5].
Looking at the sources, the last three seem to use identical layouts,
aside from the elf_gregset_t, which uses 64-bit registers on n64 but
32-bit registers everywhere else, and the architecture specific
ELF_NGREG constant.
Arnd
[1] https://www.linux-mips.org/archives/linux-mips/2009-05/msg00135.html
[2] https://elixir.bootlin.com/linux/latest/source/include/uapi/linux/elfcore.h
[3] https://elixir.bootlin.com/linux/latest/source/include/linux/elfcore-compat.h
[4] https://elixir.bootlin.com/linux/latest/source/arch/mips/kernel/binfmt_elfo32.c
[5] https://elixir.bootlin.com/linux/latest/source/arch/mips/kernel/binfmt_elfn32.c
^ permalink raw reply [flat|nested] 57+ messages in thread* Re: [gnu-csky] [PATCH v4 06/13] C-SKY: Linux ABI
2018-09-13 20:31 ` Arnd Bergmann
@ 2018-09-13 20:49 ` Joseph Myers
2018-09-13 21:38 ` Arnd Bergmann
0 siblings, 1 reply; 57+ messages in thread
From: Joseph Myers @ 2018-09-13 20:49 UTC (permalink / raw)
To: Arnd Bergmann; +Cc: Mao Han, gnu-csky, GNU C Library, c-sky_gcc_upstream
On Thu, 13 Sep 2018, Arnd Bergmann wrote:
> We have four definitions in the kernel for these structures: The native
> structure for the ELF implementation [2], the generic compat implementation[3]
> for everything other than MIPS, and the two MIPS variants [4][5].
> Looking at the sources, the last three seem to use identical layouts,
> aside from the elf_gregset_t, which uses 64-bit registers on n64 but
> 32-bit registers everywhere else, and the architecture specific
> ELF_NGREG constant.
A 64-bit MIPS kernel is n64, not n32, so "unsigned long" in
binfmt_elfn32.c is actually a 64-bit type for registers (as expected).
I think this confirms that the other two n32 conditionals in
sysdeps/unix/sysv/linux/mips/sys/procfs.h are incorrect, as they would
result in a field having the size it does for n64, not that for n32.
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [gnu-csky] [PATCH v4 06/13] C-SKY: Linux ABI
2018-09-13 20:49 ` Joseph Myers
@ 2018-09-13 21:38 ` Arnd Bergmann
0 siblings, 0 replies; 57+ messages in thread
From: Arnd Bergmann @ 2018-09-13 21:38 UTC (permalink / raw)
To: Joseph Myers; +Cc: Mao Han, gnu-csky, GNU C Library, c-sky_gcc_upstream
On Thu, Sep 13, 2018 at 10:48 PM Joseph Myers <joseph@codesourcery.com> wrote:
>
> On Thu, 13 Sep 2018, Arnd Bergmann wrote:
>
> > We have four definitions in the kernel for these structures: The native
> > structure for the ELF implementation [2], the generic compat implementation[3]
> > for everything other than MIPS, and the two MIPS variants [4][5].
> > Looking at the sources, the last three seem to use identical layouts,
> > aside from the elf_gregset_t, which uses 64-bit registers on n64 but
> > 32-bit registers everywhere else, and the architecture specific
> > ELF_NGREG constant.
>
> A 64-bit MIPS kernel is n64, not n32, so "unsigned long" in
> binfmt_elfn32.c is actually a 64-bit type for registers (as expected).
>
> I think this confirms that the other two n32 conditionals in
> sysdeps/unix/sysv/linux/mips/sys/procfs.h are incorrect, as they would
> result in a field having the size it does for n64, not that for n32.
Yes, that sounds right. From what I can tell, the n32 ABI has come
out of fashion a bit: the embedded stuff tends to be 32-bit only
so it uses o32, and the Debian and Fedora ports port do either
n64 or o32 but not n32. There was a partial Fedora 12 n32 port, but
that was 7 years ago.
Arnd
^ permalink raw reply [flat|nested] 57+ messages in thread
* [PATCH v4 12/13] C-SKY: Add build-many-glibcs.py support
[not found] ` <cover.1536720821.git.han_mao@c-sky.com>
` (6 preceding siblings ...)
2018-09-12 2:57 ` [PATCH v4 06/13] C-SKY: Linux ABI Mao Han
@ 2018-09-12 2:57 ` Mao Han
2018-09-12 2:57 ` [PATCH v4 11/13] C-SKY: Add ABI definitions in config.h.in Mao Han
` (4 subsequent siblings)
12 siblings, 0 replies; 57+ messages in thread
From: Mao Han @ 2018-09-12 2:57 UTC (permalink / raw)
To: libc-alpha; +Cc: Mao Han, c-sky_gcc_upstream, gnu-csky
* scripts/build-many-glibcs.py: Add C-SKY targets
---
scripts/build-many-glibcs.py | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py
index 6cc9477..fb3cfe7 100755
--- a/scripts/build-many-glibcs.py
+++ b/scripts/build-many-glibcs.py
@@ -191,6 +191,13 @@ class Context(object):
variant='be8',
gcc_cfg=['--with-float=hard', '--with-arch=armv7-a',
'--with-fpu=vfpv3'])
+ self.add_config(arch='csky',
+ os_name='linux-gnuabiv2',
+ variant='soft',
+ gcc_cfg=['--disable-multilib'])
+ self.add_config(arch='csky',
+ os_name='linux-gnuabiv2',
+ gcc_cfg=['--with-float=hard', '--disable-multilib'])
self.add_config(arch='hppa',
os_name='linux-gnu')
self.add_config(arch='i686',
@@ -1247,6 +1254,7 @@ class Config(object):
arch_map = {'aarch64': 'arm64',
'alpha': 'alpha',
'arm': 'arm',
+ 'csky': 'csky',
'hppa': 'parisc',
'i486': 'x86',
'i586': 'x86',
--
2.7.4
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v4 11/13] C-SKY: Add ABI definitions in config.h.in
[not found] ` <cover.1536720821.git.han_mao@c-sky.com>
` (7 preceding siblings ...)
2018-09-12 2:57 ` [PATCH v4 12/13] C-SKY: Add build-many-glibcs.py support Mao Han
@ 2018-09-12 2:57 ` Mao Han
2018-09-12 2:57 ` [PATCH v4 09/13] C-SKY: Add dynamic relocations to elf.h Mao Han
` (3 subsequent siblings)
12 siblings, 0 replies; 57+ messages in thread
From: Mao Han @ 2018-09-12 2:57 UTC (permalink / raw)
To: libc-alpha; +Cc: Mao Han, c-sky_gcc_upstream, gnu-csky
* config.h.in (CSKYABI, CSKY_HARD_FLOAT): New Define.
---
config.h.in | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/config.h.in b/config.h.in
index 141db21..b60dc30 100644
--- a/config.h.in
+++ b/config.h.in
@@ -100,6 +100,12 @@
/* AArch64 big endian ABI */
#undef HAVE_AARCH64_BE
+/* C-SKY ABI version */
+#undef CSKYABI
+
+/* C-SKY floating-point ABI */
+#undef CSKY_HARD_FLOAT
+
/* RISC-V integer ABI for ld.so. */
#undef RISCV_ABI_XLEN
--
2.7.4
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v4 09/13] C-SKY: Add dynamic relocations to elf.h
[not found] ` <cover.1536720821.git.han_mao@c-sky.com>
` (8 preceding siblings ...)
2018-09-12 2:57 ` [PATCH v4 11/13] C-SKY: Add ABI definitions in config.h.in Mao Han
@ 2018-09-12 2:57 ` Mao Han
2018-09-12 3:05 ` [PATCH v4 07/13] C-SKY: ABI Lists Mao Han
` (2 subsequent siblings)
12 siblings, 0 replies; 57+ messages in thread
From: Mao Han @ 2018-09-12 2:57 UTC (permalink / raw)
To: libc-alpha; +Cc: Mao Han, c-sky_gcc_upstream, gnu-csky
* elf/elf.h (EM_CSKY, R_CKCORE_NONE, R_CKCORE_ADDR32)
(R_CKCORE_PCRELIMM8BY4, R_CKCORE_PCRELIMM11BY2, R_CKCORE_PCREL32)
(R_CKCORE_PCRELJSR_IMM11BY2, R_CKCORE_RELATIVE, R_CKCORE_COPY)
(R_CKCORE_GLOB_DAT, R_CKCORE_JUMP_SLOT, R_CKCORE_GOTOFF)
(R_CKCORE_GOTPC, R_CKCORE_GOT32, R_CKCORE_PLT32, R_CKCORE_ADDRGOT)
(R_CKCORE_ADDRPLT, R_CKCORE_PCREL_IMM26BY2, R_CKCORE_PCREL_IMM16BY2)
(R_CKCORE_PCREL_IMM16BY4, R_CKCORE_PCREL_IMM10BY2)
(R_CKCORE_PCREL_IMM10BY4, R_CKCORE_ADDR_HI16, R_CKCORE_ADDR_LO16)
(R_CKCORE_GOTPC_HI16, R_CKCORE_GOTPC_LO16, R_CKCORE_GOTOFF_HI16)
(R_CKCORE_GOTOFF_LO16, R_CKCORE_GOT12, R_CKCORE_GOT_HI16)
(R_CKCORE_GOT_LO16, R_CKCORE_PLT12, R_CKCORE_PLT_HI16)
(R_CKCORE_PLT_LO16, R_CKCORE_ADDRGOT_HI16, R_CKCORE_ADDRGOT_LO16)
(R_CKCORE_ADDRPLT_HI16, R_CKCORE_ADDRPLT_LO16)
(R_CKCORE_PCREL_JSR_IMM26BY2, R_CKCORE_TOFFSET_LO16)
(R_CKCORE_DOFFSET_LO16, R_CKCORE_PCREL_IMM18BY2)
(R_CKCORE_DOFFSET_IMM18, R_CKCORE_DOFFSET_IMM18BY2)
(R_CKCORE_DOFFSET_IMM18BY4, R_CKCORE_GOT_IMM18BY4)
(R_CKCORE_PLT_IMM18BY4, R_CKCORE_PCREL_IMM7BY4, R_CKCORE_TLS_LE32)
(R_CKCORE_TLS_IE32, R_CKCORE_TLS_GD32, R_CKCORE_TLS_LDM32)
(R_CKCORE_TLS_LDO32, R_CKCORE_TLS_DTPMOD32, R_CKCORE_TLS_DTPOFF32)
(R_CKCORE_TLS_TPOFF32): New Define.
---
elf/elf.h | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 66 insertions(+), 1 deletion(-)
diff --git a/elf/elf.h b/elf/elf.h
index 226e538..9ff927b 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -360,8 +360,9 @@ typedef struct
#define EM_RISCV 243 /* RISC-V */
#define EM_BPF 247 /* Linux BPF -- in-kernel virtual machine */
+#define EM_CSKY 252 /* C_SKY */
-#define EM_NUM 248
+#define EM_NUM 253
/* Old spellings/synonyms. */
@@ -3019,6 +3020,70 @@ enum
/* Keep this the last entry. */
#define R_ARM_NUM 256
+/* csky */
+#define R_CKCORE_NONE 0 /* no reloc */
+#define R_CKCORE_ADDR32 1 /* direct 32 bit (S + A) */
+#define R_CKCORE_PCRELIMM8BY4 2 /* disp ((S + A - P) >> 2) & 0xff */
+#define R_CKCORE_PCRELIMM11BY2 3 /* disp ((S + A - P) >> 1) & 0x7ff */
+#define R_CKCORE_PCREL32 5 /* 32-bit rel (S + A - P) */
+#define R_CKCORE_PCRELJSR_IMM11BY2 6 /* disp ((S + A - P) >>1) & 0x7ff */
+#define R_CKCORE_RELATIVE 9 /* 32 bit adjust program base(B + A)*/
+#define R_CKCORE_COPY 10 /* 32 bit adjust by program base */
+#define R_CKCORE_GLOB_DAT 11 /* off between got and sym (S) */
+#define R_CKCORE_JUMP_SLOT 12 /* PLT entry (S) */
+#define R_CKCORE_GOTOFF 13 /* offset to GOT (S + A - GOT) */
+#define R_CKCORE_GOTPC 14 /* PC offset to GOT (GOT + A - P) */
+#define R_CKCORE_GOT32 15 /* 32 bit GOT entry (G) */
+#define R_CKCORE_PLT32 16 /* 32 bit PLT entry (G) */
+#define R_CKCORE_ADDRGOT 17 /* GOT entry in GLOB_DAT (GOT + G) */
+#define R_CKCORE_ADDRPLT 18 /* PLT entry in GLOB_DAT (GOT + G) */
+#define R_CKCORE_PCREL_IMM26BY2 19 /* ((S + A - P) >> 1) & 0x3ffffff */
+#define R_CKCORE_PCREL_IMM16BY2 20 /* disp ((S + A - P) >> 1) & 0xffff */
+#define R_CKCORE_PCREL_IMM16BY4 21 /* disp ((S + A - P) >> 2) & 0xffff */
+#define R_CKCORE_PCREL_IMM10BY2 22 /* disp ((S + A - P) >> 1) & 0x3ff */
+#define R_CKCORE_PCREL_IMM10BY4 23 /* disp ((S + A - P) >> 2) & 0x3ff */
+#define R_CKCORE_ADDR_HI16 24 /* high & low 16 bit ADDR */
+ /* ((S + A) >> 16) & 0xffff */
+#define R_CKCORE_ADDR_LO16 25 /* (S + A) & 0xffff */
+#define R_CKCORE_GOTPC_HI16 26 /* high & low 16 bit GOTPC */
+ /* ((GOT + A - P) >> 16) & 0xffff */
+#define R_CKCORE_GOTPC_LO16 27 /* (GOT + A - P) & 0xffff */
+#define R_CKCORE_GOTOFF_HI16 28 /* high & low 16 bit GOTOFF */
+ /* ((S + A - GOT) >> 16) & 0xffff */
+#define R_CKCORE_GOTOFF_LO16 29 /* (S + A - GOT) & 0xffff */
+#define R_CKCORE_GOT12 30 /* 12 bit disp GOT entry (G) */
+#define R_CKCORE_GOT_HI16 31 /* high & low 16 bit GOT */
+ /* (G >> 16) & 0xffff */
+#define R_CKCORE_GOT_LO16 32 /* (G & 0xffff) */
+#define R_CKCORE_PLT12 33 /* 12 bit disp PLT entry (G) */
+#define R_CKCORE_PLT_HI16 34 /* high & low 16 bit PLT */
+ /* (G >> 16) & 0xffff */
+#define R_CKCORE_PLT_LO16 35 /* G & 0xffff */
+#define R_CKCORE_ADDRGOT_HI16 36 /* high & low 16 bit ADDRGOT */
+ /* (GOT + G * 4) & 0xffff */
+#define R_CKCORE_ADDRGOT_LO16 37 /* (GOT + G * 4) & 0xffff */
+#define R_CKCORE_ADDRPLT_HI16 38 /* high & low 16 bit ADDRPLT */
+ /* ((GOT + G * 4) >> 16) & 0xFFFF */
+#define R_CKCORE_ADDRPLT_LO16 39 /* (GOT+G*4) & 0xffff */
+#define R_CKCORE_PCREL_JSR_IMM26BY2 40 /* disp ((S+A-P) >>1) & x3ffffff */
+#define R_CKCORE_TOFFSET_LO16 41 /* (S+A-BTEXT) & 0xffff */
+#define R_CKCORE_DOFFSET_LO16 42 /* (S+A-BTEXT) & 0xffff */
+#define R_CKCORE_PCREL_IMM18BY2 43 /* disp ((S+A-P) >>1) & 0x3ffff */
+#define R_CKCORE_DOFFSET_IMM18 44 /* disp (S+A-BDATA) & 0x3ffff */
+#define R_CKCORE_DOFFSET_IMM18BY2 45 /* disp ((S+A-BDATA)>>1) & 0x3ffff */
+#define R_CKCORE_DOFFSET_IMM18BY4 46 /* disp ((S+A-BDATA)>>2) & 0x3ffff */
+#define R_CKCORE_GOT_IMM18BY4 48 /* disp (G >> 2) */
+#define R_CKCORE_PLT_IMM18BY4 49 /* disp (G >> 2) */
+#define R_CKCORE_PCREL_IMM7BY4 50 /* disp ((S+A-P) >>2) & 0x7f */
+#define R_CKCORE_TLS_LE32 51 /* 32 bit offset to TLS block */
+#define R_CKCORE_TLS_IE32 52
+#define R_CKCORE_TLS_GD32 53
+#define R_CKCORE_TLS_LDM32 54
+#define R_CKCORE_TLS_LDO32 55
+#define R_CKCORE_TLS_DTPMOD32 56
+#define R_CKCORE_TLS_DTPOFF32 57
+#define R_CKCORE_TLS_TPOFF32 58
+
/* IA-64 specific declarations. */
/* Processor specific flags for the Ehdr e_flags field. */
--
2.7.4
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v4 07/13] C-SKY: ABI Lists
[not found] ` <cover.1536720821.git.han_mao@c-sky.com>
` (9 preceding siblings ...)
2018-09-12 2:57 ` [PATCH v4 09/13] C-SKY: Add dynamic relocations to elf.h Mao Han
@ 2018-09-12 3:05 ` Mao Han
2018-09-12 6:51 ` Andreas Schwab
2018-09-12 3:05 ` [PATCH v4 04/13] C-SKY: NPTL support and Atomic Mao Han
2018-09-12 3:05 ` [PATCH v4 10/13] C-SKY: Build Infastructure Mao Han
12 siblings, 1 reply; 57+ messages in thread
From: Mao Han @ 2018-09-12 3:05 UTC (permalink / raw)
To: libc-alpha; +Cc: Mao Han, c-sky_gcc_upstream, gnu-csky
* sysdeps/unix/sysv/linux/csky/ld.abilist: New file.
* sysdeps/unix/sysv/linux/csky/libBrokenLocale.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libanl.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libcrypt.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libdl.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libnsl.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libpthread.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libresolv.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/librt.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libthread_db.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libutil.abilist: Likewise.
---
sysdeps/unix/sysv/linux/csky/ld.abilist | 9 +
.../unix/sysv/linux/csky/libBrokenLocale.abilist | 1 +
sysdeps/unix/sysv/linux/csky/libanl.abilist | 4 +
sysdeps/unix/sysv/linux/csky/libc.abilist | 2086 ++++++++++++++++++++
sysdeps/unix/sysv/linux/csky/libcrypt.abilist | 2 +
sysdeps/unix/sysv/linux/csky/libdl.abilist | 9 +
sysdeps/unix/sysv/linux/csky/libm.abilist | 753 +++++++
sysdeps/unix/sysv/linux/csky/libnsl.abilist | 120 ++
sysdeps/unix/sysv/linux/csky/libpthread.abilist | 235 +++
sysdeps/unix/sysv/linux/csky/libresolv.abilist | 79 +
sysdeps/unix/sysv/linux/csky/librt.abilist | 35 +
sysdeps/unix/sysv/linux/csky/libthread_db.abilist | 40 +
sysdeps/unix/sysv/linux/csky/libutil.abilist | 6 +
13 files changed, 3379 insertions(+)
create mode 100644 sysdeps/unix/sysv/linux/csky/ld.abilist
create mode 100644 sysdeps/unix/sysv/linux/csky/libBrokenLocale.abilist
create mode 100644 sysdeps/unix/sysv/linux/csky/libanl.abilist
create mode 100644 sysdeps/unix/sysv/linux/csky/libc.abilist
create mode 100644 sysdeps/unix/sysv/linux/csky/libcrypt.abilist
create mode 100644 sysdeps/unix/sysv/linux/csky/libdl.abilist
create mode 100644 sysdeps/unix/sysv/linux/csky/libm.abilist
create mode 100644 sysdeps/unix/sysv/linux/csky/libnsl.abilist
create mode 100644 sysdeps/unix/sysv/linux/csky/libpthread.abilist
create mode 100644 sysdeps/unix/sysv/linux/csky/libresolv.abilist
create mode 100644 sysdeps/unix/sysv/linux/csky/librt.abilist
create mode 100644 sysdeps/unix/sysv/linux/csky/libthread_db.abilist
create mode 100644 sysdeps/unix/sysv/linux/csky/libutil.abilist
diff --git a/sysdeps/unix/sysv/linux/csky/ld.abilist b/sysdeps/unix/sysv/linux/csky/ld.abilist
new file mode 100644
index 0000000..7157616
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/ld.abilist
@@ -0,0 +1,9 @@
+GLIBC_2.29 __libc_stack_end D 0x4
+GLIBC_2.29 __stack_chk_guard D 0x4
+GLIBC_2.29 __tls_get_addr F
+GLIBC_2.29 _dl_mcount F
+GLIBC_2.29 _r_debug D 0x14
+GLIBC_2.29 calloc F
+GLIBC_2.29 free F
+GLIBC_2.29 malloc F
+GLIBC_2.29 realloc F
diff --git a/sysdeps/unix/sysv/linux/csky/libBrokenLocale.abilist b/sysdeps/unix/sysv/linux/csky/libBrokenLocale.abilist
new file mode 100644
index 0000000..96b4163
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/libBrokenLocale.abilist
@@ -0,0 +1 @@
+GLIBC_2.29 __ctype_get_mb_cur_max F
diff --git a/sysdeps/unix/sysv/linux/csky/libanl.abilist b/sysdeps/unix/sysv/linux/csky/libanl.abilist
new file mode 100644
index 0000000..416a6f8
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/libanl.abilist
@@ -0,0 +1,4 @@
+GLIBC_2.29 gai_cancel F
+GLIBC_2.29 gai_error F
+GLIBC_2.29 gai_suspend F
+GLIBC_2.29 getaddrinfo_a F
diff --git a/sysdeps/unix/sysv/linux/csky/libc.abilist b/sysdeps/unix/sysv/linux/csky/libc.abilist
new file mode 100644
index 0000000..69c1ca3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/libc.abilist
@@ -0,0 +1,2086 @@
+GLIBC_2.29 _Exit F
+GLIBC_2.29 _IO_2_1_stderr_ D 0x98
+GLIBC_2.29 _IO_2_1_stdin_ D 0x98
+GLIBC_2.29 _IO_2_1_stdout_ D 0x98
+GLIBC_2.29 _IO_adjust_column F
+GLIBC_2.29 _IO_adjust_wcolumn F
+GLIBC_2.29 _IO_default_doallocate F
+GLIBC_2.29 _IO_default_finish F
+GLIBC_2.29 _IO_default_pbackfail F
+GLIBC_2.29 _IO_default_uflow F
+GLIBC_2.29 _IO_default_xsgetn F
+GLIBC_2.29 _IO_default_xsputn F
+GLIBC_2.29 _IO_do_write F
+GLIBC_2.29 _IO_doallocbuf F
+GLIBC_2.29 _IO_fclose F
+GLIBC_2.29 _IO_fdopen F
+GLIBC_2.29 _IO_feof F
+GLIBC_2.29 _IO_ferror F
+GLIBC_2.29 _IO_fflush F
+GLIBC_2.29 _IO_fgetpos F
+GLIBC_2.29 _IO_fgetpos64 F
+GLIBC_2.29 _IO_fgets F
+GLIBC_2.29 _IO_file_attach F
+GLIBC_2.29 _IO_file_close F
+GLIBC_2.29 _IO_file_close_it F
+GLIBC_2.29 _IO_file_doallocate F
+GLIBC_2.29 _IO_file_finish F
+GLIBC_2.29 _IO_file_fopen F
+GLIBC_2.29 _IO_file_init F
+GLIBC_2.29 _IO_file_jumps D 0x54
+GLIBC_2.29 _IO_file_open F
+GLIBC_2.29 _IO_file_overflow F
+GLIBC_2.29 _IO_file_read F
+GLIBC_2.29 _IO_file_seek F
+GLIBC_2.29 _IO_file_seekoff F
+GLIBC_2.29 _IO_file_setbuf F
+GLIBC_2.29 _IO_file_stat F
+GLIBC_2.29 _IO_file_sync F
+GLIBC_2.29 _IO_file_underflow F
+GLIBC_2.29 _IO_file_write F
+GLIBC_2.29 _IO_file_xsputn F
+GLIBC_2.29 _IO_flockfile F
+GLIBC_2.29 _IO_flush_all F
+GLIBC_2.29 _IO_flush_all_linebuffered F
+GLIBC_2.29 _IO_fopen F
+GLIBC_2.29 _IO_fprintf F
+GLIBC_2.29 _IO_fputs F
+GLIBC_2.29 _IO_fread F
+GLIBC_2.29 _IO_free_backup_area F
+GLIBC_2.29 _IO_free_wbackup_area F
+GLIBC_2.29 _IO_fsetpos F
+GLIBC_2.29 _IO_fsetpos64 F
+GLIBC_2.29 _IO_ftell F
+GLIBC_2.29 _IO_ftrylockfile F
+GLIBC_2.29 _IO_funlockfile F
+GLIBC_2.29 _IO_fwrite F
+GLIBC_2.29 _IO_getc F
+GLIBC_2.29 _IO_getline F
+GLIBC_2.29 _IO_getline_info F
+GLIBC_2.29 _IO_gets F
+GLIBC_2.29 _IO_init F
+GLIBC_2.29 _IO_init_marker F
+GLIBC_2.29 _IO_init_wmarker F
+GLIBC_2.29 _IO_iter_begin F
+GLIBC_2.29 _IO_iter_end F
+GLIBC_2.29 _IO_iter_file F
+GLIBC_2.29 _IO_iter_next F
+GLIBC_2.29 _IO_least_wmarker F
+GLIBC_2.29 _IO_link_in F
+GLIBC_2.29 _IO_list_all D 0x4
+GLIBC_2.29 _IO_list_lock F
+GLIBC_2.29 _IO_list_resetlock F
+GLIBC_2.29 _IO_list_unlock F
+GLIBC_2.29 _IO_marker_delta F
+GLIBC_2.29 _IO_marker_difference F
+GLIBC_2.29 _IO_padn F
+GLIBC_2.29 _IO_peekc_locked F
+GLIBC_2.29 _IO_popen F
+GLIBC_2.29 _IO_printf F
+GLIBC_2.29 _IO_proc_close F
+GLIBC_2.29 _IO_proc_open F
+GLIBC_2.29 _IO_putc F
+GLIBC_2.29 _IO_puts F
+GLIBC_2.29 _IO_remove_marker F
+GLIBC_2.29 _IO_seekmark F
+GLIBC_2.29 _IO_seekoff F
+GLIBC_2.29 _IO_seekpos F
+GLIBC_2.29 _IO_seekwmark F
+GLIBC_2.29 _IO_setb F
+GLIBC_2.29 _IO_setbuffer F
+GLIBC_2.29 _IO_setvbuf F
+GLIBC_2.29 _IO_sgetn F
+GLIBC_2.29 _IO_sprintf F
+GLIBC_2.29 _IO_sputbackc F
+GLIBC_2.29 _IO_sputbackwc F
+GLIBC_2.29 _IO_sscanf F
+GLIBC_2.29 _IO_str_init_readonly F
+GLIBC_2.29 _IO_str_init_static F
+GLIBC_2.29 _IO_str_overflow F
+GLIBC_2.29 _IO_str_pbackfail F
+GLIBC_2.29 _IO_str_seekoff F
+GLIBC_2.29 _IO_str_underflow F
+GLIBC_2.29 _IO_sungetc F
+GLIBC_2.29 _IO_sungetwc F
+GLIBC_2.29 _IO_switch_to_get_mode F
+GLIBC_2.29 _IO_switch_to_main_wget_area F
+GLIBC_2.29 _IO_switch_to_wbackup_area F
+GLIBC_2.29 _IO_switch_to_wget_mode F
+GLIBC_2.29 _IO_un_link F
+GLIBC_2.29 _IO_ungetc F
+GLIBC_2.29 _IO_unsave_markers F
+GLIBC_2.29 _IO_unsave_wmarkers F
+GLIBC_2.29 _IO_vfprintf F
+GLIBC_2.29 _IO_vfscanf F
+GLIBC_2.29 _IO_vsprintf F
+GLIBC_2.29 _IO_wdefault_doallocate F
+GLIBC_2.29 _IO_wdefault_finish F
+GLIBC_2.29 _IO_wdefault_pbackfail F
+GLIBC_2.29 _IO_wdefault_uflow F
+GLIBC_2.29 _IO_wdefault_xsgetn F
+GLIBC_2.29 _IO_wdefault_xsputn F
+GLIBC_2.29 _IO_wdo_write F
+GLIBC_2.29 _IO_wdoallocbuf F
+GLIBC_2.29 _IO_wfile_jumps D 0x54
+GLIBC_2.29 _IO_wfile_overflow F
+GLIBC_2.29 _IO_wfile_seekoff F
+GLIBC_2.29 _IO_wfile_sync F
+GLIBC_2.29 _IO_wfile_underflow F
+GLIBC_2.29 _IO_wfile_xsputn F
+GLIBC_2.29 _IO_wmarker_delta F
+GLIBC_2.29 _IO_wsetb F
+GLIBC_2.29 ___brk_addr D 0x4
+GLIBC_2.29 __adjtimex F
+GLIBC_2.29 __after_morecore_hook D 0x4
+GLIBC_2.29 __argz_count F
+GLIBC_2.29 __argz_next F
+GLIBC_2.29 __argz_stringify F
+GLIBC_2.29 __asprintf F
+GLIBC_2.29 __asprintf_chk F
+GLIBC_2.29 __assert F
+GLIBC_2.29 __assert_fail F
+GLIBC_2.29 __assert_perror_fail F
+GLIBC_2.29 __backtrace F
+GLIBC_2.29 __backtrace_symbols F
+GLIBC_2.29 __backtrace_symbols_fd F
+GLIBC_2.29 __bsd_getpgrp F
+GLIBC_2.29 __bzero F
+GLIBC_2.29 __check_rhosts_file D 0x4
+GLIBC_2.29 __chk_fail F
+GLIBC_2.29 __clone F
+GLIBC_2.29 __close F
+GLIBC_2.29 __cmsg_nxthdr F
+GLIBC_2.29 __confstr_chk F
+GLIBC_2.29 __connect F
+GLIBC_2.29 __ctype_b_loc F
+GLIBC_2.29 __ctype_get_mb_cur_max F
+GLIBC_2.29 __ctype_tolower_loc F
+GLIBC_2.29 __ctype_toupper_loc F
+GLIBC_2.29 __curbrk D 0x4
+GLIBC_2.29 __cxa_at_quick_exit F
+GLIBC_2.29 __cxa_atexit F
+GLIBC_2.29 __cxa_finalize F
+GLIBC_2.29 __cxa_thread_atexit_impl F
+GLIBC_2.29 __cyg_profile_func_enter F
+GLIBC_2.29 __cyg_profile_func_exit F
+GLIBC_2.29 __daylight D 0x4
+GLIBC_2.29 __dcgettext F
+GLIBC_2.29 __default_morecore F
+GLIBC_2.29 __dgettext F
+GLIBC_2.29 __dprintf_chk F
+GLIBC_2.29 __dup2 F
+GLIBC_2.29 __duplocale F
+GLIBC_2.29 __endmntent F
+GLIBC_2.29 __environ D 0x4
+GLIBC_2.29 __errno_location F
+GLIBC_2.29 __explicit_bzero_chk F
+GLIBC_2.29 __fbufsize F
+GLIBC_2.29 __fcntl F
+GLIBC_2.29 __fdelt_chk F
+GLIBC_2.29 __fdelt_warn F
+GLIBC_2.29 __ffs F
+GLIBC_2.29 __fgets_chk F
+GLIBC_2.29 __fgets_unlocked_chk F
+GLIBC_2.29 __fgetws_chk F
+GLIBC_2.29 __fgetws_unlocked_chk F
+GLIBC_2.29 __finite F
+GLIBC_2.29 __finitef F
+GLIBC_2.29 __flbf F
+GLIBC_2.29 __fork F
+GLIBC_2.29 __fpending F
+GLIBC_2.29 __fprintf_chk F
+GLIBC_2.29 __fpu_control D 0x4
+GLIBC_2.29 __fpurge F
+GLIBC_2.29 __fread_chk F
+GLIBC_2.29 __fread_unlocked_chk F
+GLIBC_2.29 __freadable F
+GLIBC_2.29 __freading F
+GLIBC_2.29 __free_hook D 0x4
+GLIBC_2.29 __freelocale F
+GLIBC_2.29 __fsetlocking F
+GLIBC_2.29 __fwprintf_chk F
+GLIBC_2.29 __fwritable F
+GLIBC_2.29 __fwriting F
+GLIBC_2.29 __fxstat F
+GLIBC_2.29 __fxstat64 F
+GLIBC_2.29 __fxstatat F
+GLIBC_2.29 __fxstatat64 F
+GLIBC_2.29 __getauxval F
+GLIBC_2.29 __getcwd_chk F
+GLIBC_2.29 __getdelim F
+GLIBC_2.29 __getdomainname_chk F
+GLIBC_2.29 __getgroups_chk F
+GLIBC_2.29 __gethostname_chk F
+GLIBC_2.29 __getlogin_r_chk F
+GLIBC_2.29 __getmntent_r F
+GLIBC_2.29 __getpagesize F
+GLIBC_2.29 __getpgid F
+GLIBC_2.29 __getpid F
+GLIBC_2.29 __gets_chk F
+GLIBC_2.29 __gettimeofday F
+GLIBC_2.29 __getwd_chk F
+GLIBC_2.29 __gmtime_r F
+GLIBC_2.29 __h_errno_location F
+GLIBC_2.29 __isalnum_l F
+GLIBC_2.29 __isalpha_l F
+GLIBC_2.29 __isascii_l F
+GLIBC_2.29 __isblank_l F
+GLIBC_2.29 __iscntrl_l F
+GLIBC_2.29 __isctype F
+GLIBC_2.29 __isdigit_l F
+GLIBC_2.29 __isgraph_l F
+GLIBC_2.29 __isinf F
+GLIBC_2.29 __isinff F
+GLIBC_2.29 __islower_l F
+GLIBC_2.29 __isnan F
+GLIBC_2.29 __isnanf F
+GLIBC_2.29 __isoc99_fscanf F
+GLIBC_2.29 __isoc99_fwscanf F
+GLIBC_2.29 __isoc99_scanf F
+GLIBC_2.29 __isoc99_sscanf F
+GLIBC_2.29 __isoc99_swscanf F
+GLIBC_2.29 __isoc99_vfscanf F
+GLIBC_2.29 __isoc99_vfwscanf F
+GLIBC_2.29 __isoc99_vscanf F
+GLIBC_2.29 __isoc99_vsscanf F
+GLIBC_2.29 __isoc99_vswscanf F
+GLIBC_2.29 __isoc99_vwscanf F
+GLIBC_2.29 __isoc99_wscanf F
+GLIBC_2.29 __isprint_l F
+GLIBC_2.29 __ispunct_l F
+GLIBC_2.29 __isspace_l F
+GLIBC_2.29 __isupper_l F
+GLIBC_2.29 __iswalnum_l F
+GLIBC_2.29 __iswalpha_l F
+GLIBC_2.29 __iswblank_l F
+GLIBC_2.29 __iswcntrl_l F
+GLIBC_2.29 __iswctype F
+GLIBC_2.29 __iswctype_l F
+GLIBC_2.29 __iswdigit_l F
+GLIBC_2.29 __iswgraph_l F
+GLIBC_2.29 __iswlower_l F
+GLIBC_2.29 __iswprint_l F
+GLIBC_2.29 __iswpunct_l F
+GLIBC_2.29 __iswspace_l F
+GLIBC_2.29 __iswupper_l F
+GLIBC_2.29 __iswxdigit_l F
+GLIBC_2.29 __isxdigit_l F
+GLIBC_2.29 __ivaliduser F
+GLIBC_2.29 __key_decryptsession_pk_LOCAL D 0x4
+GLIBC_2.29 __key_encryptsession_pk_LOCAL D 0x4
+GLIBC_2.29 __key_gendes_LOCAL D 0x4
+GLIBC_2.29 __libc_allocate_rtsig F
+GLIBC_2.29 __libc_calloc F
+GLIBC_2.29 __libc_current_sigrtmax F
+GLIBC_2.29 __libc_current_sigrtmin F
+GLIBC_2.29 __libc_free F
+GLIBC_2.29 __libc_freeres F
+GLIBC_2.29 __libc_init_first F
+GLIBC_2.29 __libc_mallinfo F
+GLIBC_2.29 __libc_malloc F
+GLIBC_2.29 __libc_mallopt F
+GLIBC_2.29 __libc_memalign F
+GLIBC_2.29 __libc_pvalloc F
+GLIBC_2.29 __libc_realloc F
+GLIBC_2.29 __libc_sa_len F
+GLIBC_2.29 __libc_start_main F
+GLIBC_2.29 __libc_valloc F
+GLIBC_2.29 __longjmp_chk F
+GLIBC_2.29 __lseek F
+GLIBC_2.29 __lxstat F
+GLIBC_2.29 __lxstat64 F
+GLIBC_2.29 __malloc_hook D 0x4
+GLIBC_2.29 __mbrlen F
+GLIBC_2.29 __mbrtowc F
+GLIBC_2.29 __mbsnrtowcs_chk F
+GLIBC_2.29 __mbsrtowcs_chk F
+GLIBC_2.29 __mbstowcs_chk F
+GLIBC_2.29 __memalign_hook D 0x4
+GLIBC_2.29 __memcpy_chk F
+GLIBC_2.29 __memmove_chk F
+GLIBC_2.29 __mempcpy F
+GLIBC_2.29 __mempcpy_chk F
+GLIBC_2.29 __memset_chk F
+GLIBC_2.29 __monstartup F
+GLIBC_2.29 __morecore D 0x4
+GLIBC_2.29 __nanosleep F
+GLIBC_2.29 __newlocale F
+GLIBC_2.29 __nl_langinfo_l F
+GLIBC_2.29 __nss_configure_lookup F
+GLIBC_2.29 __nss_database_lookup F
+GLIBC_2.29 __nss_hostname_digits_dots F
+GLIBC_2.29 __nss_next F
+GLIBC_2.29 __obstack_printf_chk F
+GLIBC_2.29 __obstack_vprintf_chk F
+GLIBC_2.29 __open F
+GLIBC_2.29 __open64 F
+GLIBC_2.29 __open64_2 F
+GLIBC_2.29 __open_2 F
+GLIBC_2.29 __openat64_2 F
+GLIBC_2.29 __openat_2 F
+GLIBC_2.29 __overflow F
+GLIBC_2.29 __pipe F
+GLIBC_2.29 __poll F
+GLIBC_2.29 __poll_chk F
+GLIBC_2.29 __posix_getopt F
+GLIBC_2.29 __ppoll_chk F
+GLIBC_2.29 __pread64 F
+GLIBC_2.29 __pread64_chk F
+GLIBC_2.29 __pread_chk F
+GLIBC_2.29 __printf_chk F
+GLIBC_2.29 __printf_fp F
+GLIBC_2.29 __profile_frequency F
+GLIBC_2.29 __progname D 0x4
+GLIBC_2.29 __progname_full D 0x4
+GLIBC_2.29 __ptsname_r_chk F
+GLIBC_2.29 __pwrite64 F
+GLIBC_2.29 __rawmemchr F
+GLIBC_2.29 __rcmd_errstr D 0x4
+GLIBC_2.29 __read F
+GLIBC_2.29 __read_chk F
+GLIBC_2.29 __readlink_chk F
+GLIBC_2.29 __readlinkat_chk F
+GLIBC_2.29 __realloc_hook D 0x4
+GLIBC_2.29 __realpath_chk F
+GLIBC_2.29 __recv_chk F
+GLIBC_2.29 __recvfrom_chk F
+GLIBC_2.29 __register_atfork F
+GLIBC_2.29 __res_init F
+GLIBC_2.29 __res_nclose F
+GLIBC_2.29 __res_ninit F
+GLIBC_2.29 __res_randomid F
+GLIBC_2.29 __res_state F
+GLIBC_2.29 __rpc_thread_createerr F
+GLIBC_2.29 __rpc_thread_svc_fdset F
+GLIBC_2.29 __rpc_thread_svc_max_pollfd F
+GLIBC_2.29 __rpc_thread_svc_pollfd F
+GLIBC_2.29 __sbrk F
+GLIBC_2.29 __sched_cpualloc F
+GLIBC_2.29 __sched_cpucount F
+GLIBC_2.29 __sched_cpufree F
+GLIBC_2.29 __sched_get_priority_max F
+GLIBC_2.29 __sched_get_priority_min F
+GLIBC_2.29 __sched_getparam F
+GLIBC_2.29 __sched_getscheduler F
+GLIBC_2.29 __sched_setscheduler F
+GLIBC_2.29 __sched_yield F
+GLIBC_2.29 __select F
+GLIBC_2.29 __send F
+GLIBC_2.29 __setmntent F
+GLIBC_2.29 __setpgid F
+GLIBC_2.29 __sigaction F
+GLIBC_2.29 __signbit F
+GLIBC_2.29 __signbitf F
+GLIBC_2.29 __sigpause F
+GLIBC_2.29 __sigsetjmp F
+GLIBC_2.29 __sigsuspend F
+GLIBC_2.29 __snprintf_chk F
+GLIBC_2.29 __sprintf_chk F
+GLIBC_2.29 __stack_chk_fail F
+GLIBC_2.29 __statfs F
+GLIBC_2.29 __stpcpy F
+GLIBC_2.29 __stpcpy_chk F
+GLIBC_2.29 __stpncpy F
+GLIBC_2.29 __stpncpy_chk F
+GLIBC_2.29 __strcasecmp F
+GLIBC_2.29 __strcasecmp_l F
+GLIBC_2.29 __strcasestr F
+GLIBC_2.29 __strcat_chk F
+GLIBC_2.29 __strcoll_l F
+GLIBC_2.29 __strcpy_chk F
+GLIBC_2.29 __strdup F
+GLIBC_2.29 __strerror_r F
+GLIBC_2.29 __strfmon_l F
+GLIBC_2.29 __strftime_l F
+GLIBC_2.29 __strncasecmp_l F
+GLIBC_2.29 __strncat_chk F
+GLIBC_2.29 __strncpy_chk F
+GLIBC_2.29 __strndup F
+GLIBC_2.29 __strsep_g F
+GLIBC_2.29 __strtod_internal F
+GLIBC_2.29 __strtod_l F
+GLIBC_2.29 __strtof_internal F
+GLIBC_2.29 __strtof_l F
+GLIBC_2.29 __strtok_r F
+GLIBC_2.29 __strtol_internal F
+GLIBC_2.29 __strtol_l F
+GLIBC_2.29 __strtold_internal F
+GLIBC_2.29 __strtold_l F
+GLIBC_2.29 __strtoll_internal F
+GLIBC_2.29 __strtoll_l F
+GLIBC_2.29 __strtoul_internal F
+GLIBC_2.29 __strtoul_l F
+GLIBC_2.29 __strtoull_internal F
+GLIBC_2.29 __strtoull_l F
+GLIBC_2.29 __strverscmp F
+GLIBC_2.29 __strxfrm_l F
+GLIBC_2.29 __swprintf_chk F
+GLIBC_2.29 __sysconf F
+GLIBC_2.29 __syslog_chk F
+GLIBC_2.29 __sysv_signal F
+GLIBC_2.29 __timezone D 0x4
+GLIBC_2.29 __toascii_l F
+GLIBC_2.29 __tolower_l F
+GLIBC_2.29 __toupper_l F
+GLIBC_2.29 __towctrans F
+GLIBC_2.29 __towctrans_l F
+GLIBC_2.29 __towlower_l F
+GLIBC_2.29 __towupper_l F
+GLIBC_2.29 __ttyname_r_chk F
+GLIBC_2.29 __tzname D 0x8
+GLIBC_2.29 __uflow F
+GLIBC_2.29 __underflow F
+GLIBC_2.29 __uselocale F
+GLIBC_2.29 __vasprintf_chk F
+GLIBC_2.29 __vdprintf_chk F
+GLIBC_2.29 __vfork F
+GLIBC_2.29 __vfprintf_chk F
+GLIBC_2.29 __vfscanf F
+GLIBC_2.29 __vfwprintf_chk F
+GLIBC_2.29 __vprintf_chk F
+GLIBC_2.29 __vsnprintf F
+GLIBC_2.29 __vsnprintf_chk F
+GLIBC_2.29 __vsprintf_chk F
+GLIBC_2.29 __vsscanf F
+GLIBC_2.29 __vswprintf_chk F
+GLIBC_2.29 __vsyslog_chk F
+GLIBC_2.29 __vwprintf_chk F
+GLIBC_2.29 __wait F
+GLIBC_2.29 __waitpid F
+GLIBC_2.29 __wcpcpy_chk F
+GLIBC_2.29 __wcpncpy_chk F
+GLIBC_2.29 __wcrtomb_chk F
+GLIBC_2.29 __wcscasecmp_l F
+GLIBC_2.29 __wcscat_chk F
+GLIBC_2.29 __wcscoll_l F
+GLIBC_2.29 __wcscpy_chk F
+GLIBC_2.29 __wcsftime_l F
+GLIBC_2.29 __wcsncasecmp_l F
+GLIBC_2.29 __wcsncat_chk F
+GLIBC_2.29 __wcsncpy_chk F
+GLIBC_2.29 __wcsnrtombs_chk F
+GLIBC_2.29 __wcsrtombs_chk F
+GLIBC_2.29 __wcstod_internal F
+GLIBC_2.29 __wcstod_l F
+GLIBC_2.29 __wcstof_internal F
+GLIBC_2.29 __wcstof_l F
+GLIBC_2.29 __wcstol_internal F
+GLIBC_2.29 __wcstol_l F
+GLIBC_2.29 __wcstold_internal F
+GLIBC_2.29 __wcstold_l F
+GLIBC_2.29 __wcstoll_internal F
+GLIBC_2.29 __wcstoll_l F
+GLIBC_2.29 __wcstombs_chk F
+GLIBC_2.29 __wcstoul_internal F
+GLIBC_2.29 __wcstoul_l F
+GLIBC_2.29 __wcstoull_internal F
+GLIBC_2.29 __wcstoull_l F
+GLIBC_2.29 __wcsxfrm_l F
+GLIBC_2.29 __wctomb_chk F
+GLIBC_2.29 __wctrans_l F
+GLIBC_2.29 __wctype_l F
+GLIBC_2.29 __wmemcpy_chk F
+GLIBC_2.29 __wmemmove_chk F
+GLIBC_2.29 __wmempcpy_chk F
+GLIBC_2.29 __wmemset_chk F
+GLIBC_2.29 __woverflow F
+GLIBC_2.29 __wprintf_chk F
+GLIBC_2.29 __write F
+GLIBC_2.29 __wuflow F
+GLIBC_2.29 __wunderflow F
+GLIBC_2.29 __xmknod F
+GLIBC_2.29 __xmknodat F
+GLIBC_2.29 __xpg_basename F
+GLIBC_2.29 __xpg_sigpause F
+GLIBC_2.29 __xpg_strerror_r F
+GLIBC_2.29 __xstat F
+GLIBC_2.29 __xstat64 F
+GLIBC_2.29 _authenticate F
+GLIBC_2.29 _dl_mcount_wrapper F
+GLIBC_2.29 _dl_mcount_wrapper_check F
+GLIBC_2.29 _environ D 0x4
+GLIBC_2.29 _exit F
+GLIBC_2.29 _flushlbf F
+GLIBC_2.29 _libc_intl_domainname D 0x5
+GLIBC_2.29 _longjmp F
+GLIBC_2.29 _mcleanup F
+GLIBC_2.29 _mcount F
+GLIBC_2.29 _nl_default_dirname D 0x12
+GLIBC_2.29 _nl_domain_bindings D 0x4
+GLIBC_2.29 _nl_msg_cat_cntr D 0x4
+GLIBC_2.29 _null_auth D 0xc
+GLIBC_2.29 _obstack_allocated_p F
+GLIBC_2.29 _obstack_begin F
+GLIBC_2.29 _obstack_begin_1 F
+GLIBC_2.29 _obstack_free F
+GLIBC_2.29 _obstack_memory_used F
+GLIBC_2.29 _obstack_newchunk F
+GLIBC_2.29 _res D 0x200
+GLIBC_2.29 _res_hconf D 0x30
+GLIBC_2.29 _rpc_dtablesize F
+GLIBC_2.29 _seterr_reply F
+GLIBC_2.29 _setjmp F
+GLIBC_2.29 _sys_errlist D 0x21c
+GLIBC_2.29 _sys_nerr D 0x4
+GLIBC_2.29 _sys_siglist D 0x104
+GLIBC_2.29 _tolower F
+GLIBC_2.29 _toupper F
+GLIBC_2.29 a64l F
+GLIBC_2.29 abort F
+GLIBC_2.29 abs F
+GLIBC_2.29 accept F
+GLIBC_2.29 accept4 F
+GLIBC_2.29 access F
+GLIBC_2.29 acct F
+GLIBC_2.29 addmntent F
+GLIBC_2.29 addseverity F
+GLIBC_2.29 adjtime F
+GLIBC_2.29 adjtimex F
+GLIBC_2.29 alarm F
+GLIBC_2.29 aligned_alloc F
+GLIBC_2.29 alphasort F
+GLIBC_2.29 alphasort64 F
+GLIBC_2.29 argp_err_exit_status D 0x4
+GLIBC_2.29 argp_error F
+GLIBC_2.29 argp_failure F
+GLIBC_2.29 argp_help F
+GLIBC_2.29 argp_parse F
+GLIBC_2.29 argp_program_bug_address D 0x4
+GLIBC_2.29 argp_program_version D 0x4
+GLIBC_2.29 argp_program_version_hook D 0x4
+GLIBC_2.29 argp_state_help F
+GLIBC_2.29 argp_usage F
+GLIBC_2.29 argz_add F
+GLIBC_2.29 argz_add_sep F
+GLIBC_2.29 argz_append F
+GLIBC_2.29 argz_count F
+GLIBC_2.29 argz_create F
+GLIBC_2.29 argz_create_sep F
+GLIBC_2.29 argz_delete F
+GLIBC_2.29 argz_extract F
+GLIBC_2.29 argz_insert F
+GLIBC_2.29 argz_next F
+GLIBC_2.29 argz_replace F
+GLIBC_2.29 argz_stringify F
+GLIBC_2.29 asctime F
+GLIBC_2.29 asctime_r F
+GLIBC_2.29 asprintf F
+GLIBC_2.29 atof F
+GLIBC_2.29 atoi F
+GLIBC_2.29 atol F
+GLIBC_2.29 atoll F
+GLIBC_2.29 authdes_create F
+GLIBC_2.29 authdes_getucred F
+GLIBC_2.29 authdes_pk_create F
+GLIBC_2.29 authnone_create F
+GLIBC_2.29 authunix_create F
+GLIBC_2.29 authunix_create_default F
+GLIBC_2.29 backtrace F
+GLIBC_2.29 backtrace_symbols F
+GLIBC_2.29 backtrace_symbols_fd F
+GLIBC_2.29 basename F
+GLIBC_2.29 bcmp F
+GLIBC_2.29 bcopy F
+GLIBC_2.29 bind F
+GLIBC_2.29 bind_textdomain_codeset F
+GLIBC_2.29 bindresvport F
+GLIBC_2.29 bindtextdomain F
+GLIBC_2.29 brk F
+GLIBC_2.29 bsd_signal F
+GLIBC_2.29 bsearch F
+GLIBC_2.29 btowc F
+GLIBC_2.29 bzero F
+GLIBC_2.29 c16rtomb F
+GLIBC_2.29 c32rtomb F
+GLIBC_2.29 cacheflush F
+GLIBC_2.29 calloc F
+GLIBC_2.29 callrpc F
+GLIBC_2.29 canonicalize_file_name F
+GLIBC_2.29 capget F
+GLIBC_2.29 capset F
+GLIBC_2.29 catclose F
+GLIBC_2.29 catgets F
+GLIBC_2.29 catopen F
+GLIBC_2.29 cbc_crypt F
+GLIBC_2.29 cfgetispeed F
+GLIBC_2.29 cfgetospeed F
+GLIBC_2.29 cfmakeraw F
+GLIBC_2.29 cfsetispeed F
+GLIBC_2.29 cfsetospeed F
+GLIBC_2.29 cfsetspeed F
+GLIBC_2.29 chdir F
+GLIBC_2.29 chflags F
+GLIBC_2.29 chmod F
+GLIBC_2.29 chown F
+GLIBC_2.29 chroot F
+GLIBC_2.29 clearenv F
+GLIBC_2.29 clearerr F
+GLIBC_2.29 clearerr_unlocked F
+GLIBC_2.29 clnt_broadcast F
+GLIBC_2.29 clnt_create F
+GLIBC_2.29 clnt_pcreateerror F
+GLIBC_2.29 clnt_perrno F
+GLIBC_2.29 clnt_perror F
+GLIBC_2.29 clnt_spcreateerror F
+GLIBC_2.29 clnt_sperrno F
+GLIBC_2.29 clnt_sperror F
+GLIBC_2.29 clntraw_create F
+GLIBC_2.29 clnttcp_create F
+GLIBC_2.29 clntudp_bufcreate F
+GLIBC_2.29 clntudp_create F
+GLIBC_2.29 clntunix_create F
+GLIBC_2.29 clock F
+GLIBC_2.29 clock_adjtime F
+GLIBC_2.29 clock_getcpuclockid F
+GLIBC_2.29 clock_getres F
+GLIBC_2.29 clock_gettime F
+GLIBC_2.29 clock_nanosleep F
+GLIBC_2.29 clock_settime F
+GLIBC_2.29 clone F
+GLIBC_2.29 close F
+GLIBC_2.29 closedir F
+GLIBC_2.29 closelog F
+GLIBC_2.29 confstr F
+GLIBC_2.29 connect F
+GLIBC_2.29 copy_file_range F
+GLIBC_2.29 copysign F
+GLIBC_2.29 copysignf F
+GLIBC_2.29 copysignl F
+GLIBC_2.29 creat F
+GLIBC_2.29 creat64 F
+GLIBC_2.29 ctermid F
+GLIBC_2.29 ctime F
+GLIBC_2.29 ctime_r F
+GLIBC_2.29 cuserid F
+GLIBC_2.29 daemon F
+GLIBC_2.29 daylight D 0x4
+GLIBC_2.29 dcgettext F
+GLIBC_2.29 dcngettext F
+GLIBC_2.29 delete_module F
+GLIBC_2.29 des_setparity F
+GLIBC_2.29 dgettext F
+GLIBC_2.29 difftime F
+GLIBC_2.29 dirfd F
+GLIBC_2.29 dirname F
+GLIBC_2.29 div F
+GLIBC_2.29 dl_iterate_phdr F
+GLIBC_2.29 dngettext F
+GLIBC_2.29 dprintf F
+GLIBC_2.29 drand48 F
+GLIBC_2.29 drand48_r F
+GLIBC_2.29 dup F
+GLIBC_2.29 dup2 F
+GLIBC_2.29 dup3 F
+GLIBC_2.29 duplocale F
+GLIBC_2.29 dysize F
+GLIBC_2.29 eaccess F
+GLIBC_2.29 ecb_crypt F
+GLIBC_2.29 ecvt F
+GLIBC_2.29 ecvt_r F
+GLIBC_2.29 endaliasent F
+GLIBC_2.29 endfsent F
+GLIBC_2.29 endgrent F
+GLIBC_2.29 endhostent F
+GLIBC_2.29 endmntent F
+GLIBC_2.29 endnetent F
+GLIBC_2.29 endnetgrent F
+GLIBC_2.29 endprotoent F
+GLIBC_2.29 endpwent F
+GLIBC_2.29 endrpcent F
+GLIBC_2.29 endservent F
+GLIBC_2.29 endsgent F
+GLIBC_2.29 endspent F
+GLIBC_2.29 endttyent F
+GLIBC_2.29 endusershell F
+GLIBC_2.29 endutent F
+GLIBC_2.29 endutxent F
+GLIBC_2.29 environ D 0x4
+GLIBC_2.29 envz_add F
+GLIBC_2.29 envz_entry F
+GLIBC_2.29 envz_get F
+GLIBC_2.29 envz_merge F
+GLIBC_2.29 envz_remove F
+GLIBC_2.29 envz_strip F
+GLIBC_2.29 epoll_create F
+GLIBC_2.29 epoll_create1 F
+GLIBC_2.29 epoll_ctl F
+GLIBC_2.29 epoll_pwait F
+GLIBC_2.29 epoll_wait F
+GLIBC_2.29 erand48 F
+GLIBC_2.29 erand48_r F
+GLIBC_2.29 err F
+GLIBC_2.29 error F
+GLIBC_2.29 error_at_line F
+GLIBC_2.29 error_message_count D 0x4
+GLIBC_2.29 error_one_per_line D 0x4
+GLIBC_2.29 error_print_progname D 0x4
+GLIBC_2.29 errx F
+GLIBC_2.29 ether_aton F
+GLIBC_2.29 ether_aton_r F
+GLIBC_2.29 ether_hostton F
+GLIBC_2.29 ether_line F
+GLIBC_2.29 ether_ntoa F
+GLIBC_2.29 ether_ntoa_r F
+GLIBC_2.29 ether_ntohost F
+GLIBC_2.29 euidaccess F
+GLIBC_2.29 eventfd F
+GLIBC_2.29 eventfd_read F
+GLIBC_2.29 eventfd_write F
+GLIBC_2.29 execl F
+GLIBC_2.29 execle F
+GLIBC_2.29 execlp F
+GLIBC_2.29 execv F
+GLIBC_2.29 execve F
+GLIBC_2.29 execvp F
+GLIBC_2.29 execvpe F
+GLIBC_2.29 exit F
+GLIBC_2.29 explicit_bzero F
+GLIBC_2.29 faccessat F
+GLIBC_2.29 fallocate F
+GLIBC_2.29 fallocate64 F
+GLIBC_2.29 fanotify_init F
+GLIBC_2.29 fanotify_mark F
+GLIBC_2.29 fattach F
+GLIBC_2.29 fchdir F
+GLIBC_2.29 fchflags F
+GLIBC_2.29 fchmod F
+GLIBC_2.29 fchmodat F
+GLIBC_2.29 fchown F
+GLIBC_2.29 fchownat F
+GLIBC_2.29 fclose F
+GLIBC_2.29 fcloseall F
+GLIBC_2.29 fcntl F
+GLIBC_2.29 fcntl64 F
+GLIBC_2.29 fcvt F
+GLIBC_2.29 fcvt_r F
+GLIBC_2.29 fdatasync F
+GLIBC_2.29 fdetach F
+GLIBC_2.29 fdopen F
+GLIBC_2.29 fdopendir F
+GLIBC_2.29 feof F
+GLIBC_2.29 feof_unlocked F
+GLIBC_2.29 ferror F
+GLIBC_2.29 ferror_unlocked F
+GLIBC_2.29 fexecve F
+GLIBC_2.29 fflush F
+GLIBC_2.29 fflush_unlocked F
+GLIBC_2.29 ffs F
+GLIBC_2.29 ffsl F
+GLIBC_2.29 ffsll F
+GLIBC_2.29 fgetc F
+GLIBC_2.29 fgetc_unlocked F
+GLIBC_2.29 fgetgrent F
+GLIBC_2.29 fgetgrent_r F
+GLIBC_2.29 fgetpos F
+GLIBC_2.29 fgetpos64 F
+GLIBC_2.29 fgetpwent F
+GLIBC_2.29 fgetpwent_r F
+GLIBC_2.29 fgets F
+GLIBC_2.29 fgets_unlocked F
+GLIBC_2.29 fgetsgent F
+GLIBC_2.29 fgetsgent_r F
+GLIBC_2.29 fgetspent F
+GLIBC_2.29 fgetspent_r F
+GLIBC_2.29 fgetwc F
+GLIBC_2.29 fgetwc_unlocked F
+GLIBC_2.29 fgetws F
+GLIBC_2.29 fgetws_unlocked F
+GLIBC_2.29 fgetxattr F
+GLIBC_2.29 fileno F
+GLIBC_2.29 fileno_unlocked F
+GLIBC_2.29 finite F
+GLIBC_2.29 finitef F
+GLIBC_2.29 finitel F
+GLIBC_2.29 flistxattr F
+GLIBC_2.29 flock F
+GLIBC_2.29 flockfile F
+GLIBC_2.29 fmemopen F
+GLIBC_2.29 fmtmsg F
+GLIBC_2.29 fnmatch F
+GLIBC_2.29 fopen F
+GLIBC_2.29 fopen64 F
+GLIBC_2.29 fopencookie F
+GLIBC_2.29 fork F
+GLIBC_2.29 fpathconf F
+GLIBC_2.29 fprintf F
+GLIBC_2.29 fputc F
+GLIBC_2.29 fputc_unlocked F
+GLIBC_2.29 fputs F
+GLIBC_2.29 fputs_unlocked F
+GLIBC_2.29 fputwc F
+GLIBC_2.29 fputwc_unlocked F
+GLIBC_2.29 fputws F
+GLIBC_2.29 fputws_unlocked F
+GLIBC_2.29 fread F
+GLIBC_2.29 fread_unlocked F
+GLIBC_2.29 free F
+GLIBC_2.29 freeaddrinfo F
+GLIBC_2.29 freeifaddrs F
+GLIBC_2.29 freelocale F
+GLIBC_2.29 fremovexattr F
+GLIBC_2.29 freopen F
+GLIBC_2.29 freopen64 F
+GLIBC_2.29 frexp F
+GLIBC_2.29 frexpf F
+GLIBC_2.29 frexpl F
+GLIBC_2.29 fscanf F
+GLIBC_2.29 fseek F
+GLIBC_2.29 fseeko F
+GLIBC_2.29 fseeko64 F
+GLIBC_2.29 fsetpos F
+GLIBC_2.29 fsetpos64 F
+GLIBC_2.29 fsetxattr F
+GLIBC_2.29 fstatfs F
+GLIBC_2.29 fstatfs64 F
+GLIBC_2.29 fstatvfs F
+GLIBC_2.29 fstatvfs64 F
+GLIBC_2.29 fsync F
+GLIBC_2.29 ftell F
+GLIBC_2.29 ftello F
+GLIBC_2.29 ftello64 F
+GLIBC_2.29 ftime F
+GLIBC_2.29 ftok F
+GLIBC_2.29 ftruncate F
+GLIBC_2.29 ftruncate64 F
+GLIBC_2.29 ftrylockfile F
+GLIBC_2.29 fts64_children F
+GLIBC_2.29 fts64_close F
+GLIBC_2.29 fts64_open F
+GLIBC_2.29 fts64_read F
+GLIBC_2.29 fts64_set F
+GLIBC_2.29 fts_children F
+GLIBC_2.29 fts_close F
+GLIBC_2.29 fts_open F
+GLIBC_2.29 fts_read F
+GLIBC_2.29 fts_set F
+GLIBC_2.29 ftw F
+GLIBC_2.29 ftw64 F
+GLIBC_2.29 funlockfile F
+GLIBC_2.29 futimens F
+GLIBC_2.29 futimes F
+GLIBC_2.29 futimesat F
+GLIBC_2.29 fwide F
+GLIBC_2.29 fwprintf F
+GLIBC_2.29 fwrite F
+GLIBC_2.29 fwrite_unlocked F
+GLIBC_2.29 fwscanf F
+GLIBC_2.29 gai_strerror F
+GLIBC_2.29 gcvt F
+GLIBC_2.29 get_avphys_pages F
+GLIBC_2.29 get_current_dir_name F
+GLIBC_2.29 get_myaddress F
+GLIBC_2.29 get_nprocs F
+GLIBC_2.29 get_nprocs_conf F
+GLIBC_2.29 get_phys_pages F
+GLIBC_2.29 getaddrinfo F
+GLIBC_2.29 getaliasbyname F
+GLIBC_2.29 getaliasbyname_r F
+GLIBC_2.29 getaliasent F
+GLIBC_2.29 getaliasent_r F
+GLIBC_2.29 getauxval F
+GLIBC_2.29 getc F
+GLIBC_2.29 getc_unlocked F
+GLIBC_2.29 getchar F
+GLIBC_2.29 getchar_unlocked F
+GLIBC_2.29 getcontext F
+GLIBC_2.29 getcwd F
+GLIBC_2.29 getdate F
+GLIBC_2.29 getdate_err D 0x4
+GLIBC_2.29 getdate_r F
+GLIBC_2.29 getdelim F
+GLIBC_2.29 getdirentries F
+GLIBC_2.29 getdirentries64 F
+GLIBC_2.29 getdomainname F
+GLIBC_2.29 getdtablesize F
+GLIBC_2.29 getegid F
+GLIBC_2.29 getentropy F
+GLIBC_2.29 getenv F
+GLIBC_2.29 geteuid F
+GLIBC_2.29 getfsent F
+GLIBC_2.29 getfsfile F
+GLIBC_2.29 getfsspec F
+GLIBC_2.29 getgid F
+GLIBC_2.29 getgrent F
+GLIBC_2.29 getgrent_r F
+GLIBC_2.29 getgrgid F
+GLIBC_2.29 getgrgid_r F
+GLIBC_2.29 getgrnam F
+GLIBC_2.29 getgrnam_r F
+GLIBC_2.29 getgrouplist F
+GLIBC_2.29 getgroups F
+GLIBC_2.29 gethostbyaddr F
+GLIBC_2.29 gethostbyaddr_r F
+GLIBC_2.29 gethostbyname F
+GLIBC_2.29 gethostbyname2 F
+GLIBC_2.29 gethostbyname2_r F
+GLIBC_2.29 gethostbyname_r F
+GLIBC_2.29 gethostent F
+GLIBC_2.29 gethostent_r F
+GLIBC_2.29 gethostid F
+GLIBC_2.29 gethostname F
+GLIBC_2.29 getifaddrs F
+GLIBC_2.29 getipv4sourcefilter F
+GLIBC_2.29 getitimer F
+GLIBC_2.29 getline F
+GLIBC_2.29 getloadavg F
+GLIBC_2.29 getlogin F
+GLIBC_2.29 getlogin_r F
+GLIBC_2.29 getmntent F
+GLIBC_2.29 getmntent_r F
+GLIBC_2.29 getmsg F
+GLIBC_2.29 getnameinfo F
+GLIBC_2.29 getnetbyaddr F
+GLIBC_2.29 getnetbyaddr_r F
+GLIBC_2.29 getnetbyname F
+GLIBC_2.29 getnetbyname_r F
+GLIBC_2.29 getnetent F
+GLIBC_2.29 getnetent_r F
+GLIBC_2.29 getnetgrent F
+GLIBC_2.29 getnetgrent_r F
+GLIBC_2.29 getnetname F
+GLIBC_2.29 getopt F
+GLIBC_2.29 getopt_long F
+GLIBC_2.29 getopt_long_only F
+GLIBC_2.29 getpagesize F
+GLIBC_2.29 getpass F
+GLIBC_2.29 getpeername F
+GLIBC_2.29 getpgid F
+GLIBC_2.29 getpgrp F
+GLIBC_2.29 getpid F
+GLIBC_2.29 getpmsg F
+GLIBC_2.29 getppid F
+GLIBC_2.29 getpriority F
+GLIBC_2.29 getprotobyname F
+GLIBC_2.29 getprotobyname_r F
+GLIBC_2.29 getprotobynumber F
+GLIBC_2.29 getprotobynumber_r F
+GLIBC_2.29 getprotoent F
+GLIBC_2.29 getprotoent_r F
+GLIBC_2.29 getpt F
+GLIBC_2.29 getpublickey F
+GLIBC_2.29 getpw F
+GLIBC_2.29 getpwent F
+GLIBC_2.29 getpwent_r F
+GLIBC_2.29 getpwnam F
+GLIBC_2.29 getpwnam_r F
+GLIBC_2.29 getpwuid F
+GLIBC_2.29 getpwuid_r F
+GLIBC_2.29 getrandom F
+GLIBC_2.29 getresgid F
+GLIBC_2.29 getresuid F
+GLIBC_2.29 getrlimit F
+GLIBC_2.29 getrlimit64 F
+GLIBC_2.29 getrpcbyname F
+GLIBC_2.29 getrpcbyname_r F
+GLIBC_2.29 getrpcbynumber F
+GLIBC_2.29 getrpcbynumber_r F
+GLIBC_2.29 getrpcent F
+GLIBC_2.29 getrpcent_r F
+GLIBC_2.29 getrpcport F
+GLIBC_2.29 getrusage F
+GLIBC_2.29 gets F
+GLIBC_2.29 getsecretkey F
+GLIBC_2.29 getservbyname F
+GLIBC_2.29 getservbyname_r F
+GLIBC_2.29 getservbyport F
+GLIBC_2.29 getservbyport_r F
+GLIBC_2.29 getservent F
+GLIBC_2.29 getservent_r F
+GLIBC_2.29 getsgent F
+GLIBC_2.29 getsgent_r F
+GLIBC_2.29 getsgnam F
+GLIBC_2.29 getsgnam_r F
+GLIBC_2.29 getsid F
+GLIBC_2.29 getsockname F
+GLIBC_2.29 getsockopt F
+GLIBC_2.29 getsourcefilter F
+GLIBC_2.29 getspent F
+GLIBC_2.29 getspent_r F
+GLIBC_2.29 getspnam F
+GLIBC_2.29 getspnam_r F
+GLIBC_2.29 getsubopt F
+GLIBC_2.29 gettext F
+GLIBC_2.29 gettimeofday F
+GLIBC_2.29 getttyent F
+GLIBC_2.29 getttynam F
+GLIBC_2.29 getuid F
+GLIBC_2.29 getusershell F
+GLIBC_2.29 getutent F
+GLIBC_2.29 getutent_r F
+GLIBC_2.29 getutid F
+GLIBC_2.29 getutid_r F
+GLIBC_2.29 getutline F
+GLIBC_2.29 getutline_r F
+GLIBC_2.29 getutmp F
+GLIBC_2.29 getutmpx F
+GLIBC_2.29 getutxent F
+GLIBC_2.29 getutxid F
+GLIBC_2.29 getutxline F
+GLIBC_2.29 getw F
+GLIBC_2.29 getwc F
+GLIBC_2.29 getwc_unlocked F
+GLIBC_2.29 getwchar F
+GLIBC_2.29 getwchar_unlocked F
+GLIBC_2.29 getwd F
+GLIBC_2.29 getxattr F
+GLIBC_2.29 glob F
+GLIBC_2.29 glob64 F
+GLIBC_2.29 glob_pattern_p F
+GLIBC_2.29 globfree F
+GLIBC_2.29 globfree64 F
+GLIBC_2.29 gmtime F
+GLIBC_2.29 gmtime_r F
+GLIBC_2.29 gnu_dev_major F
+GLIBC_2.29 gnu_dev_makedev F
+GLIBC_2.29 gnu_dev_minor F
+GLIBC_2.29 gnu_get_libc_release F
+GLIBC_2.29 gnu_get_libc_version F
+GLIBC_2.29 grantpt F
+GLIBC_2.29 group_member F
+GLIBC_2.29 gsignal F
+GLIBC_2.29 gtty F
+GLIBC_2.29 h_errlist D 0x14
+GLIBC_2.29 h_nerr D 0x4
+GLIBC_2.29 hasmntopt F
+GLIBC_2.29 hcreate F
+GLIBC_2.29 hcreate_r F
+GLIBC_2.29 hdestroy F
+GLIBC_2.29 hdestroy_r F
+GLIBC_2.29 herror F
+GLIBC_2.29 host2netname F
+GLIBC_2.29 hsearch F
+GLIBC_2.29 hsearch_r F
+GLIBC_2.29 hstrerror F
+GLIBC_2.29 htonl F
+GLIBC_2.29 htons F
+GLIBC_2.29 iconv F
+GLIBC_2.29 iconv_close F
+GLIBC_2.29 iconv_open F
+GLIBC_2.29 if_freenameindex F
+GLIBC_2.29 if_indextoname F
+GLIBC_2.29 if_nameindex F
+GLIBC_2.29 if_nametoindex F
+GLIBC_2.29 imaxabs F
+GLIBC_2.29 imaxdiv F
+GLIBC_2.29 in6addr_any D 0x10
+GLIBC_2.29 in6addr_loopback D 0x10
+GLIBC_2.29 index F
+GLIBC_2.29 inet6_opt_append F
+GLIBC_2.29 inet6_opt_find F
+GLIBC_2.29 inet6_opt_finish F
+GLIBC_2.29 inet6_opt_get_val F
+GLIBC_2.29 inet6_opt_init F
+GLIBC_2.29 inet6_opt_next F
+GLIBC_2.29 inet6_opt_set_val F
+GLIBC_2.29 inet6_option_alloc F
+GLIBC_2.29 inet6_option_append F
+GLIBC_2.29 inet6_option_find F
+GLIBC_2.29 inet6_option_init F
+GLIBC_2.29 inet6_option_next F
+GLIBC_2.29 inet6_option_space F
+GLIBC_2.29 inet6_rth_add F
+GLIBC_2.29 inet6_rth_getaddr F
+GLIBC_2.29 inet6_rth_init F
+GLIBC_2.29 inet6_rth_reverse F
+GLIBC_2.29 inet6_rth_segments F
+GLIBC_2.29 inet6_rth_space F
+GLIBC_2.29 inet_addr F
+GLIBC_2.29 inet_aton F
+GLIBC_2.29 inet_lnaof F
+GLIBC_2.29 inet_makeaddr F
+GLIBC_2.29 inet_netof F
+GLIBC_2.29 inet_network F
+GLIBC_2.29 inet_nsap_addr F
+GLIBC_2.29 inet_nsap_ntoa F
+GLIBC_2.29 inet_ntoa F
+GLIBC_2.29 inet_ntop F
+GLIBC_2.29 inet_pton F
+GLIBC_2.29 init_module F
+GLIBC_2.29 initgroups F
+GLIBC_2.29 initstate F
+GLIBC_2.29 initstate_r F
+GLIBC_2.29 innetgr F
+GLIBC_2.29 inotify_add_watch F
+GLIBC_2.29 inotify_init F
+GLIBC_2.29 inotify_init1 F
+GLIBC_2.29 inotify_rm_watch F
+GLIBC_2.29 insque F
+GLIBC_2.29 ioctl F
+GLIBC_2.29 iruserok F
+GLIBC_2.29 iruserok_af F
+GLIBC_2.29 isalnum F
+GLIBC_2.29 isalnum_l F
+GLIBC_2.29 isalpha F
+GLIBC_2.29 isalpha_l F
+GLIBC_2.29 isascii F
+GLIBC_2.29 isastream F
+GLIBC_2.29 isatty F
+GLIBC_2.29 isblank F
+GLIBC_2.29 isblank_l F
+GLIBC_2.29 iscntrl F
+GLIBC_2.29 iscntrl_l F
+GLIBC_2.29 isctype F
+GLIBC_2.29 isdigit F
+GLIBC_2.29 isdigit_l F
+GLIBC_2.29 isfdtype F
+GLIBC_2.29 isgraph F
+GLIBC_2.29 isgraph_l F
+GLIBC_2.29 isinf F
+GLIBC_2.29 isinff F
+GLIBC_2.29 isinfl F
+GLIBC_2.29 islower F
+GLIBC_2.29 islower_l F
+GLIBC_2.29 isnan F
+GLIBC_2.29 isnanf F
+GLIBC_2.29 isnanl F
+GLIBC_2.29 isprint F
+GLIBC_2.29 isprint_l F
+GLIBC_2.29 ispunct F
+GLIBC_2.29 ispunct_l F
+GLIBC_2.29 isspace F
+GLIBC_2.29 isspace_l F
+GLIBC_2.29 isupper F
+GLIBC_2.29 isupper_l F
+GLIBC_2.29 iswalnum F
+GLIBC_2.29 iswalnum_l F
+GLIBC_2.29 iswalpha F
+GLIBC_2.29 iswalpha_l F
+GLIBC_2.29 iswblank F
+GLIBC_2.29 iswblank_l F
+GLIBC_2.29 iswcntrl F
+GLIBC_2.29 iswcntrl_l F
+GLIBC_2.29 iswctype F
+GLIBC_2.29 iswctype_l F
+GLIBC_2.29 iswdigit F
+GLIBC_2.29 iswdigit_l F
+GLIBC_2.29 iswgraph F
+GLIBC_2.29 iswgraph_l F
+GLIBC_2.29 iswlower F
+GLIBC_2.29 iswlower_l F
+GLIBC_2.29 iswprint F
+GLIBC_2.29 iswprint_l F
+GLIBC_2.29 iswpunct F
+GLIBC_2.29 iswpunct_l F
+GLIBC_2.29 iswspace F
+GLIBC_2.29 iswspace_l F
+GLIBC_2.29 iswupper F
+GLIBC_2.29 iswupper_l F
+GLIBC_2.29 iswxdigit F
+GLIBC_2.29 iswxdigit_l F
+GLIBC_2.29 isxdigit F
+GLIBC_2.29 isxdigit_l F
+GLIBC_2.29 jrand48 F
+GLIBC_2.29 jrand48_r F
+GLIBC_2.29 key_decryptsession F
+GLIBC_2.29 key_decryptsession_pk F
+GLIBC_2.29 key_encryptsession F
+GLIBC_2.29 key_encryptsession_pk F
+GLIBC_2.29 key_gendes F
+GLIBC_2.29 key_get_conv F
+GLIBC_2.29 key_secretkey_is_set F
+GLIBC_2.29 key_setnet F
+GLIBC_2.29 key_setsecret F
+GLIBC_2.29 kill F
+GLIBC_2.29 killpg F
+GLIBC_2.29 klogctl F
+GLIBC_2.29 l64a F
+GLIBC_2.29 labs F
+GLIBC_2.29 lchmod F
+GLIBC_2.29 lchown F
+GLIBC_2.29 lckpwdf F
+GLIBC_2.29 lcong48 F
+GLIBC_2.29 lcong48_r F
+GLIBC_2.29 ldexp F
+GLIBC_2.29 ldexpf F
+GLIBC_2.29 ldexpl F
+GLIBC_2.29 ldiv F
+GLIBC_2.29 lfind F
+GLIBC_2.29 lgetxattr F
+GLIBC_2.29 link F
+GLIBC_2.29 linkat F
+GLIBC_2.29 listen F
+GLIBC_2.29 listxattr F
+GLIBC_2.29 llabs F
+GLIBC_2.29 lldiv F
+GLIBC_2.29 llistxattr F
+GLIBC_2.29 localeconv F
+GLIBC_2.29 localtime F
+GLIBC_2.29 localtime_r F
+GLIBC_2.29 lockf F
+GLIBC_2.29 lockf64 F
+GLIBC_2.29 longjmp F
+GLIBC_2.29 lrand48 F
+GLIBC_2.29 lrand48_r F
+GLIBC_2.29 lremovexattr F
+GLIBC_2.29 lsearch F
+GLIBC_2.29 lseek F
+GLIBC_2.29 lseek64 F
+GLIBC_2.29 lsetxattr F
+GLIBC_2.29 lutimes F
+GLIBC_2.29 madvise F
+GLIBC_2.29 makecontext F
+GLIBC_2.29 mallinfo F
+GLIBC_2.29 malloc F
+GLIBC_2.29 malloc_info F
+GLIBC_2.29 malloc_stats F
+GLIBC_2.29 malloc_trim F
+GLIBC_2.29 malloc_usable_size F
+GLIBC_2.29 mallopt F
+GLIBC_2.29 mallwatch D 0x4
+GLIBC_2.29 mblen F
+GLIBC_2.29 mbrlen F
+GLIBC_2.29 mbrtoc16 F
+GLIBC_2.29 mbrtoc32 F
+GLIBC_2.29 mbrtowc F
+GLIBC_2.29 mbsinit F
+GLIBC_2.29 mbsnrtowcs F
+GLIBC_2.29 mbsrtowcs F
+GLIBC_2.29 mbstowcs F
+GLIBC_2.29 mbtowc F
+GLIBC_2.29 mcheck F
+GLIBC_2.29 mcheck_check_all F
+GLIBC_2.29 mcheck_pedantic F
+GLIBC_2.29 mcount F
+GLIBC_2.29 memalign F
+GLIBC_2.29 memccpy F
+GLIBC_2.29 memchr F
+GLIBC_2.29 memcmp F
+GLIBC_2.29 memcpy F
+GLIBC_2.29 memfd_create F
+GLIBC_2.29 memfrob F
+GLIBC_2.29 memmem F
+GLIBC_2.29 memmove F
+GLIBC_2.29 mempcpy F
+GLIBC_2.29 memrchr F
+GLIBC_2.29 memset F
+GLIBC_2.29 mincore F
+GLIBC_2.29 mkdir F
+GLIBC_2.29 mkdirat F
+GLIBC_2.29 mkdtemp F
+GLIBC_2.29 mkfifo F
+GLIBC_2.29 mkfifoat F
+GLIBC_2.29 mkostemp F
+GLIBC_2.29 mkostemp64 F
+GLIBC_2.29 mkostemps F
+GLIBC_2.29 mkostemps64 F
+GLIBC_2.29 mkstemp F
+GLIBC_2.29 mkstemp64 F
+GLIBC_2.29 mkstemps F
+GLIBC_2.29 mkstemps64 F
+GLIBC_2.29 mktemp F
+GLIBC_2.29 mktime F
+GLIBC_2.29 mlock F
+GLIBC_2.29 mlock2 F
+GLIBC_2.29 mlockall F
+GLIBC_2.29 mmap F
+GLIBC_2.29 mmap64 F
+GLIBC_2.29 modf F
+GLIBC_2.29 modff F
+GLIBC_2.29 modfl F
+GLIBC_2.29 moncontrol F
+GLIBC_2.29 monstartup F
+GLIBC_2.29 mount F
+GLIBC_2.29 mprobe F
+GLIBC_2.29 mprotect F
+GLIBC_2.29 mrand48 F
+GLIBC_2.29 mrand48_r F
+GLIBC_2.29 mremap F
+GLIBC_2.29 msgctl F
+GLIBC_2.29 msgget F
+GLIBC_2.29 msgrcv F
+GLIBC_2.29 msgsnd F
+GLIBC_2.29 msync F
+GLIBC_2.29 mtrace F
+GLIBC_2.29 munlock F
+GLIBC_2.29 munlockall F
+GLIBC_2.29 munmap F
+GLIBC_2.29 muntrace F
+GLIBC_2.29 name_to_handle_at F
+GLIBC_2.29 nanosleep F
+GLIBC_2.29 netname2host F
+GLIBC_2.29 netname2user F
+GLIBC_2.29 newlocale F
+GLIBC_2.29 nftw F
+GLIBC_2.29 nftw64 F
+GLIBC_2.29 ngettext F
+GLIBC_2.29 nice F
+GLIBC_2.29 nl_langinfo F
+GLIBC_2.29 nl_langinfo_l F
+GLIBC_2.29 nrand48 F
+GLIBC_2.29 nrand48_r F
+GLIBC_2.29 ntohl F
+GLIBC_2.29 ntohs F
+GLIBC_2.29 ntp_adjtime F
+GLIBC_2.29 ntp_gettime F
+GLIBC_2.29 ntp_gettimex F
+GLIBC_2.29 obstack_alloc_failed_handler D 0x4
+GLIBC_2.29 obstack_exit_failure D 0x4
+GLIBC_2.29 obstack_free F
+GLIBC_2.29 obstack_printf F
+GLIBC_2.29 obstack_vprintf F
+GLIBC_2.29 on_exit F
+GLIBC_2.29 open F
+GLIBC_2.29 open64 F
+GLIBC_2.29 open_by_handle_at F
+GLIBC_2.29 open_memstream F
+GLIBC_2.29 open_wmemstream F
+GLIBC_2.29 openat F
+GLIBC_2.29 openat64 F
+GLIBC_2.29 opendir F
+GLIBC_2.29 openlog F
+GLIBC_2.29 optarg D 0x4
+GLIBC_2.29 opterr D 0x4
+GLIBC_2.29 optind D 0x4
+GLIBC_2.29 optopt D 0x4
+GLIBC_2.29 parse_printf_format F
+GLIBC_2.29 passwd2des F
+GLIBC_2.29 pathconf F
+GLIBC_2.29 pause F
+GLIBC_2.29 pclose F
+GLIBC_2.29 perror F
+GLIBC_2.29 personality F
+GLIBC_2.29 pipe F
+GLIBC_2.29 pipe2 F
+GLIBC_2.29 pivot_root F
+GLIBC_2.29 pkey_alloc F
+GLIBC_2.29 pkey_free F
+GLIBC_2.29 pkey_get F
+GLIBC_2.29 pkey_mprotect F
+GLIBC_2.29 pkey_set F
+GLIBC_2.29 pmap_getmaps F
+GLIBC_2.29 pmap_getport F
+GLIBC_2.29 pmap_rmtcall F
+GLIBC_2.29 pmap_set F
+GLIBC_2.29 pmap_unset F
+GLIBC_2.29 poll F
+GLIBC_2.29 popen F
+GLIBC_2.29 posix_fadvise F
+GLIBC_2.29 posix_fadvise64 F
+GLIBC_2.29 posix_fallocate F
+GLIBC_2.29 posix_fallocate64 F
+GLIBC_2.29 posix_madvise F
+GLIBC_2.29 posix_memalign F
+GLIBC_2.29 posix_openpt F
+GLIBC_2.29 posix_spawn F
+GLIBC_2.29 posix_spawn_file_actions_addclose F
+GLIBC_2.29 posix_spawn_file_actions_adddup2 F
+GLIBC_2.29 posix_spawn_file_actions_addopen F
+GLIBC_2.29 posix_spawn_file_actions_destroy F
+GLIBC_2.29 posix_spawn_file_actions_init F
+GLIBC_2.29 posix_spawnattr_destroy F
+GLIBC_2.29 posix_spawnattr_getflags F
+GLIBC_2.29 posix_spawnattr_getpgroup F
+GLIBC_2.29 posix_spawnattr_getschedparam F
+GLIBC_2.29 posix_spawnattr_getschedpolicy F
+GLIBC_2.29 posix_spawnattr_getsigdefault F
+GLIBC_2.29 posix_spawnattr_getsigmask F
+GLIBC_2.29 posix_spawnattr_init F
+GLIBC_2.29 posix_spawnattr_setflags F
+GLIBC_2.29 posix_spawnattr_setpgroup F
+GLIBC_2.29 posix_spawnattr_setschedparam F
+GLIBC_2.29 posix_spawnattr_setschedpolicy F
+GLIBC_2.29 posix_spawnattr_setsigdefault F
+GLIBC_2.29 posix_spawnattr_setsigmask F
+GLIBC_2.29 posix_spawnp F
+GLIBC_2.29 ppoll F
+GLIBC_2.29 prctl F
+GLIBC_2.29 pread F
+GLIBC_2.29 pread64 F
+GLIBC_2.29 preadv F
+GLIBC_2.29 preadv2 F
+GLIBC_2.29 preadv64 F
+GLIBC_2.29 preadv64v2 F
+GLIBC_2.29 printf F
+GLIBC_2.29 printf_size F
+GLIBC_2.29 printf_size_info F
+GLIBC_2.29 prlimit F
+GLIBC_2.29 prlimit64 F
+GLIBC_2.29 process_vm_readv F
+GLIBC_2.29 process_vm_writev F
+GLIBC_2.29 profil F
+GLIBC_2.29 program_invocation_name D 0x4
+GLIBC_2.29 program_invocation_short_name D 0x4
+GLIBC_2.29 pselect F
+GLIBC_2.29 psiginfo F
+GLIBC_2.29 psignal F
+GLIBC_2.29 pthread_attr_destroy F
+GLIBC_2.29 pthread_attr_getdetachstate F
+GLIBC_2.29 pthread_attr_getinheritsched F
+GLIBC_2.29 pthread_attr_getschedparam F
+GLIBC_2.29 pthread_attr_getschedpolicy F
+GLIBC_2.29 pthread_attr_getscope F
+GLIBC_2.29 pthread_attr_init F
+GLIBC_2.29 pthread_attr_setdetachstate F
+GLIBC_2.29 pthread_attr_setinheritsched F
+GLIBC_2.29 pthread_attr_setschedparam F
+GLIBC_2.29 pthread_attr_setschedpolicy F
+GLIBC_2.29 pthread_attr_setscope F
+GLIBC_2.29 pthread_cond_broadcast F
+GLIBC_2.29 pthread_cond_destroy F
+GLIBC_2.29 pthread_cond_init F
+GLIBC_2.29 pthread_cond_signal F
+GLIBC_2.29 pthread_cond_timedwait F
+GLIBC_2.29 pthread_cond_wait F
+GLIBC_2.29 pthread_condattr_destroy F
+GLIBC_2.29 pthread_condattr_init F
+GLIBC_2.29 pthread_equal F
+GLIBC_2.29 pthread_exit F
+GLIBC_2.29 pthread_getschedparam F
+GLIBC_2.29 pthread_mutex_destroy F
+GLIBC_2.29 pthread_mutex_init F
+GLIBC_2.29 pthread_mutex_lock F
+GLIBC_2.29 pthread_mutex_unlock F
+GLIBC_2.29 pthread_self F
+GLIBC_2.29 pthread_setcancelstate F
+GLIBC_2.29 pthread_setcanceltype F
+GLIBC_2.29 pthread_setschedparam F
+GLIBC_2.29 ptrace F
+GLIBC_2.29 ptsname F
+GLIBC_2.29 ptsname_r F
+GLIBC_2.29 putc F
+GLIBC_2.29 putc_unlocked F
+GLIBC_2.29 putchar F
+GLIBC_2.29 putchar_unlocked F
+GLIBC_2.29 putenv F
+GLIBC_2.29 putgrent F
+GLIBC_2.29 putmsg F
+GLIBC_2.29 putpmsg F
+GLIBC_2.29 putpwent F
+GLIBC_2.29 puts F
+GLIBC_2.29 putsgent F
+GLIBC_2.29 putspent F
+GLIBC_2.29 pututline F
+GLIBC_2.29 pututxline F
+GLIBC_2.29 putw F
+GLIBC_2.29 putwc F
+GLIBC_2.29 putwc_unlocked F
+GLIBC_2.29 putwchar F
+GLIBC_2.29 putwchar_unlocked F
+GLIBC_2.29 pvalloc F
+GLIBC_2.29 pwrite F
+GLIBC_2.29 pwrite64 F
+GLIBC_2.29 pwritev F
+GLIBC_2.29 pwritev2 F
+GLIBC_2.29 pwritev64 F
+GLIBC_2.29 pwritev64v2 F
+GLIBC_2.29 qecvt F
+GLIBC_2.29 qecvt_r F
+GLIBC_2.29 qfcvt F
+GLIBC_2.29 qfcvt_r F
+GLIBC_2.29 qgcvt F
+GLIBC_2.29 qsort F
+GLIBC_2.29 qsort_r F
+GLIBC_2.29 quick_exit F
+GLIBC_2.29 quotactl F
+GLIBC_2.29 raise F
+GLIBC_2.29 rand F
+GLIBC_2.29 rand_r F
+GLIBC_2.29 random F
+GLIBC_2.29 random_r F
+GLIBC_2.29 rawmemchr F
+GLIBC_2.29 rcmd F
+GLIBC_2.29 rcmd_af F
+GLIBC_2.29 re_comp F
+GLIBC_2.29 re_compile_fastmap F
+GLIBC_2.29 re_compile_pattern F
+GLIBC_2.29 re_exec F
+GLIBC_2.29 re_match F
+GLIBC_2.29 re_match_2 F
+GLIBC_2.29 re_search F
+GLIBC_2.29 re_search_2 F
+GLIBC_2.29 re_set_registers F
+GLIBC_2.29 re_set_syntax F
+GLIBC_2.29 re_syntax_options D 0x4
+GLIBC_2.29 read F
+GLIBC_2.29 readahead F
+GLIBC_2.29 readdir F
+GLIBC_2.29 readdir64 F
+GLIBC_2.29 readdir64_r F
+GLIBC_2.29 readdir_r F
+GLIBC_2.29 readlink F
+GLIBC_2.29 readlinkat F
+GLIBC_2.29 readv F
+GLIBC_2.29 realloc F
+GLIBC_2.29 reallocarray F
+GLIBC_2.29 realpath F
+GLIBC_2.29 reboot F
+GLIBC_2.29 recv F
+GLIBC_2.29 recvfrom F
+GLIBC_2.29 recvmmsg F
+GLIBC_2.29 recvmsg F
+GLIBC_2.29 regcomp F
+GLIBC_2.29 regerror F
+GLIBC_2.29 regexec F
+GLIBC_2.29 regfree F
+GLIBC_2.29 register_printf_function F
+GLIBC_2.29 register_printf_modifier F
+GLIBC_2.29 register_printf_specifier F
+GLIBC_2.29 register_printf_type F
+GLIBC_2.29 registerrpc F
+GLIBC_2.29 remap_file_pages F
+GLIBC_2.29 remove F
+GLIBC_2.29 removexattr F
+GLIBC_2.29 remque F
+GLIBC_2.29 rename F
+GLIBC_2.29 renameat F
+GLIBC_2.29 renameat2 F
+GLIBC_2.29 revoke F
+GLIBC_2.29 rewind F
+GLIBC_2.29 rewinddir F
+GLIBC_2.29 rexec F
+GLIBC_2.29 rexec_af F
+GLIBC_2.29 rexecoptions D 0x4
+GLIBC_2.29 rindex F
+GLIBC_2.29 rmdir F
+GLIBC_2.29 rpc_createerr D 0x10
+GLIBC_2.29 rpmatch F
+GLIBC_2.29 rresvport F
+GLIBC_2.29 rresvport_af F
+GLIBC_2.29 rtime F
+GLIBC_2.29 ruserok F
+GLIBC_2.29 ruserok_af F
+GLIBC_2.29 ruserpass F
+GLIBC_2.29 sbrk F
+GLIBC_2.29 scalbn F
+GLIBC_2.29 scalbnf F
+GLIBC_2.29 scalbnl F
+GLIBC_2.29 scandir F
+GLIBC_2.29 scandir64 F
+GLIBC_2.29 scandirat F
+GLIBC_2.29 scandirat64 F
+GLIBC_2.29 scanf F
+GLIBC_2.29 sched_get_priority_max F
+GLIBC_2.29 sched_get_priority_min F
+GLIBC_2.29 sched_getaffinity F
+GLIBC_2.29 sched_getcpu F
+GLIBC_2.29 sched_getparam F
+GLIBC_2.29 sched_getscheduler F
+GLIBC_2.29 sched_rr_get_interval F
+GLIBC_2.29 sched_setaffinity F
+GLIBC_2.29 sched_setparam F
+GLIBC_2.29 sched_setscheduler F
+GLIBC_2.29 sched_yield F
+GLIBC_2.29 secure_getenv F
+GLIBC_2.29 seed48 F
+GLIBC_2.29 seed48_r F
+GLIBC_2.29 seekdir F
+GLIBC_2.29 select F
+GLIBC_2.29 semctl F
+GLIBC_2.29 semget F
+GLIBC_2.29 semop F
+GLIBC_2.29 semtimedop F
+GLIBC_2.29 send F
+GLIBC_2.29 sendfile F
+GLIBC_2.29 sendfile64 F
+GLIBC_2.29 sendmmsg F
+GLIBC_2.29 sendmsg F
+GLIBC_2.29 sendto F
+GLIBC_2.29 setaliasent F
+GLIBC_2.29 setbuf F
+GLIBC_2.29 setbuffer F
+GLIBC_2.29 setcontext F
+GLIBC_2.29 setdomainname F
+GLIBC_2.29 setegid F
+GLIBC_2.29 setenv F
+GLIBC_2.29 seteuid F
+GLIBC_2.29 setfsent F
+GLIBC_2.29 setfsgid F
+GLIBC_2.29 setfsuid F
+GLIBC_2.29 setgid F
+GLIBC_2.29 setgrent F
+GLIBC_2.29 setgroups F
+GLIBC_2.29 sethostent F
+GLIBC_2.29 sethostid F
+GLIBC_2.29 sethostname F
+GLIBC_2.29 setipv4sourcefilter F
+GLIBC_2.29 setitimer F
+GLIBC_2.29 setjmp F
+GLIBC_2.29 setlinebuf F
+GLIBC_2.29 setlocale F
+GLIBC_2.29 setlogin F
+GLIBC_2.29 setlogmask F
+GLIBC_2.29 setmntent F
+GLIBC_2.29 setnetent F
+GLIBC_2.29 setnetgrent F
+GLIBC_2.29 setns F
+GLIBC_2.29 setpgid F
+GLIBC_2.29 setpgrp F
+GLIBC_2.29 setpriority F
+GLIBC_2.29 setprotoent F
+GLIBC_2.29 setpwent F
+GLIBC_2.29 setregid F
+GLIBC_2.29 setresgid F
+GLIBC_2.29 setresuid F
+GLIBC_2.29 setreuid F
+GLIBC_2.29 setrlimit F
+GLIBC_2.29 setrlimit64 F
+GLIBC_2.29 setrpcent F
+GLIBC_2.29 setservent F
+GLIBC_2.29 setsgent F
+GLIBC_2.29 setsid F
+GLIBC_2.29 setsockopt F
+GLIBC_2.29 setsourcefilter F
+GLIBC_2.29 setspent F
+GLIBC_2.29 setstate F
+GLIBC_2.29 setstate_r F
+GLIBC_2.29 settimeofday F
+GLIBC_2.29 setttyent F
+GLIBC_2.29 setuid F
+GLIBC_2.29 setusershell F
+GLIBC_2.29 setutent F
+GLIBC_2.29 setutxent F
+GLIBC_2.29 setvbuf F
+GLIBC_2.29 setxattr F
+GLIBC_2.29 sgetsgent F
+GLIBC_2.29 sgetsgent_r F
+GLIBC_2.29 sgetspent F
+GLIBC_2.29 sgetspent_r F
+GLIBC_2.29 shmat F
+GLIBC_2.29 shmctl F
+GLIBC_2.29 shmdt F
+GLIBC_2.29 shmget F
+GLIBC_2.29 shutdown F
+GLIBC_2.29 sigaction F
+GLIBC_2.29 sigaddset F
+GLIBC_2.29 sigaltstack F
+GLIBC_2.29 sigandset F
+GLIBC_2.29 sigblock F
+GLIBC_2.29 sigdelset F
+GLIBC_2.29 sigemptyset F
+GLIBC_2.29 sigfillset F
+GLIBC_2.29 siggetmask F
+GLIBC_2.29 sighold F
+GLIBC_2.29 sigignore F
+GLIBC_2.29 siginterrupt F
+GLIBC_2.29 sigisemptyset F
+GLIBC_2.29 sigismember F
+GLIBC_2.29 siglongjmp F
+GLIBC_2.29 signal F
+GLIBC_2.29 signalfd F
+GLIBC_2.29 sigorset F
+GLIBC_2.29 sigpause F
+GLIBC_2.29 sigpending F
+GLIBC_2.29 sigprocmask F
+GLIBC_2.29 sigqueue F
+GLIBC_2.29 sigrelse F
+GLIBC_2.29 sigreturn F
+GLIBC_2.29 sigset F
+GLIBC_2.29 sigsetmask F
+GLIBC_2.29 sigstack F
+GLIBC_2.29 sigsuspend F
+GLIBC_2.29 sigtimedwait F
+GLIBC_2.29 sigwait F
+GLIBC_2.29 sigwaitinfo F
+GLIBC_2.29 sleep F
+GLIBC_2.29 snprintf F
+GLIBC_2.29 sockatmark F
+GLIBC_2.29 socket F
+GLIBC_2.29 socketpair F
+GLIBC_2.29 splice F
+GLIBC_2.29 sprintf F
+GLIBC_2.29 sprofil F
+GLIBC_2.29 srand F
+GLIBC_2.29 srand48 F
+GLIBC_2.29 srand48_r F
+GLIBC_2.29 srandom F
+GLIBC_2.29 srandom_r F
+GLIBC_2.29 sscanf F
+GLIBC_2.29 ssignal F
+GLIBC_2.29 sstk F
+GLIBC_2.29 statfs F
+GLIBC_2.29 statfs64 F
+GLIBC_2.29 statvfs F
+GLIBC_2.29 statvfs64 F
+GLIBC_2.29 statx F
+GLIBC_2.29 stderr D 0x4
+GLIBC_2.29 stdin D 0x4
+GLIBC_2.29 stdout D 0x4
+GLIBC_2.29 stime F
+GLIBC_2.29 stpcpy F
+GLIBC_2.29 stpncpy F
+GLIBC_2.29 strcasecmp F
+GLIBC_2.29 strcasecmp_l F
+GLIBC_2.29 strcasestr F
+GLIBC_2.29 strcat F
+GLIBC_2.29 strchr F
+GLIBC_2.29 strchrnul F
+GLIBC_2.29 strcmp F
+GLIBC_2.29 strcoll F
+GLIBC_2.29 strcoll_l F
+GLIBC_2.29 strcpy F
+GLIBC_2.29 strcspn F
+GLIBC_2.29 strdup F
+GLIBC_2.29 strerror F
+GLIBC_2.29 strerror_l F
+GLIBC_2.29 strerror_r F
+GLIBC_2.29 strfmon F
+GLIBC_2.29 strfmon_l F
+GLIBC_2.29 strfromd F
+GLIBC_2.29 strfromf F
+GLIBC_2.29 strfromf32 F
+GLIBC_2.29 strfromf32x F
+GLIBC_2.29 strfromf64 F
+GLIBC_2.29 strfroml F
+GLIBC_2.29 strfry F
+GLIBC_2.29 strftime F
+GLIBC_2.29 strftime_l F
+GLIBC_2.29 strlen F
+GLIBC_2.29 strncasecmp F
+GLIBC_2.29 strncasecmp_l F
+GLIBC_2.29 strncat F
+GLIBC_2.29 strncmp F
+GLIBC_2.29 strncpy F
+GLIBC_2.29 strndup F
+GLIBC_2.29 strnlen F
+GLIBC_2.29 strpbrk F
+GLIBC_2.29 strptime F
+GLIBC_2.29 strptime_l F
+GLIBC_2.29 strrchr F
+GLIBC_2.29 strsep F
+GLIBC_2.29 strsignal F
+GLIBC_2.29 strspn F
+GLIBC_2.29 strstr F
+GLIBC_2.29 strtod F
+GLIBC_2.29 strtod_l F
+GLIBC_2.29 strtof F
+GLIBC_2.29 strtof32 F
+GLIBC_2.29 strtof32_l F
+GLIBC_2.29 strtof32x F
+GLIBC_2.29 strtof32x_l F
+GLIBC_2.29 strtof64 F
+GLIBC_2.29 strtof64_l F
+GLIBC_2.29 strtof_l F
+GLIBC_2.29 strtoimax F
+GLIBC_2.29 strtok F
+GLIBC_2.29 strtok_r F
+GLIBC_2.29 strtol F
+GLIBC_2.29 strtol_l F
+GLIBC_2.29 strtold F
+GLIBC_2.29 strtold_l F
+GLIBC_2.29 strtoll F
+GLIBC_2.29 strtoll_l F
+GLIBC_2.29 strtoq F
+GLIBC_2.29 strtoul F
+GLIBC_2.29 strtoul_l F
+GLIBC_2.29 strtoull F
+GLIBC_2.29 strtoull_l F
+GLIBC_2.29 strtoumax F
+GLIBC_2.29 strtouq F
+GLIBC_2.29 strverscmp F
+GLIBC_2.29 strxfrm F
+GLIBC_2.29 strxfrm_l F
+GLIBC_2.29 stty F
+GLIBC_2.29 svc_exit F
+GLIBC_2.29 svc_fdset D 0x80
+GLIBC_2.29 svc_getreq F
+GLIBC_2.29 svc_getreq_common F
+GLIBC_2.29 svc_getreq_poll F
+GLIBC_2.29 svc_getreqset F
+GLIBC_2.29 svc_max_pollfd D 0x4
+GLIBC_2.29 svc_pollfd D 0x4
+GLIBC_2.29 svc_register F
+GLIBC_2.29 svc_run F
+GLIBC_2.29 svc_sendreply F
+GLIBC_2.29 svc_unregister F
+GLIBC_2.29 svcauthdes_stats D 0xc
+GLIBC_2.29 svcerr_auth F
+GLIBC_2.29 svcerr_decode F
+GLIBC_2.29 svcerr_noproc F
+GLIBC_2.29 svcerr_noprog F
+GLIBC_2.29 svcerr_progvers F
+GLIBC_2.29 svcerr_systemerr F
+GLIBC_2.29 svcerr_weakauth F
+GLIBC_2.29 svcfd_create F
+GLIBC_2.29 svcraw_create F
+GLIBC_2.29 svctcp_create F
+GLIBC_2.29 svcudp_bufcreate F
+GLIBC_2.29 svcudp_create F
+GLIBC_2.29 svcudp_enablecache F
+GLIBC_2.29 svcunix_create F
+GLIBC_2.29 svcunixfd_create F
+GLIBC_2.29 swab F
+GLIBC_2.29 swapcontext F
+GLIBC_2.29 swapoff F
+GLIBC_2.29 swapon F
+GLIBC_2.29 swprintf F
+GLIBC_2.29 swscanf F
+GLIBC_2.29 symlink F
+GLIBC_2.29 symlinkat F
+GLIBC_2.29 sync F
+GLIBC_2.29 sync_file_range F
+GLIBC_2.29 syncfs F
+GLIBC_2.29 sys_errlist D 0x21c
+GLIBC_2.29 sys_nerr D 0x4
+GLIBC_2.29 sys_sigabbrev D 0x104
+GLIBC_2.29 sys_siglist D 0x104
+GLIBC_2.29 syscall F
+GLIBC_2.29 sysconf F
+GLIBC_2.29 sysctl F
+GLIBC_2.29 sysinfo F
+GLIBC_2.29 syslog F
+GLIBC_2.29 system F
+GLIBC_2.29 sysv_signal F
+GLIBC_2.29 tcdrain F
+GLIBC_2.29 tcflow F
+GLIBC_2.29 tcflush F
+GLIBC_2.29 tcgetattr F
+GLIBC_2.29 tcgetpgrp F
+GLIBC_2.29 tcgetsid F
+GLIBC_2.29 tcsendbreak F
+GLIBC_2.29 tcsetattr F
+GLIBC_2.29 tcsetpgrp F
+GLIBC_2.29 tdelete F
+GLIBC_2.29 tdestroy F
+GLIBC_2.29 tee F
+GLIBC_2.29 telldir F
+GLIBC_2.29 tempnam F
+GLIBC_2.29 textdomain F
+GLIBC_2.29 tfind F
+GLIBC_2.29 thrd_current F
+GLIBC_2.29 thrd_equal F
+GLIBC_2.29 thrd_sleep F
+GLIBC_2.29 thrd_yield F
+GLIBC_2.29 time F
+GLIBC_2.29 timegm F
+GLIBC_2.29 timelocal F
+GLIBC_2.29 timerfd_create F
+GLIBC_2.29 timerfd_gettime F
+GLIBC_2.29 timerfd_settime F
+GLIBC_2.29 times F
+GLIBC_2.29 timespec_get F
+GLIBC_2.29 timezone D 0x4
+GLIBC_2.29 tmpfile F
+GLIBC_2.29 tmpfile64 F
+GLIBC_2.29 tmpnam F
+GLIBC_2.29 tmpnam_r F
+GLIBC_2.29 toascii F
+GLIBC_2.29 tolower F
+GLIBC_2.29 tolower_l F
+GLIBC_2.29 toupper F
+GLIBC_2.29 toupper_l F
+GLIBC_2.29 towctrans F
+GLIBC_2.29 towctrans_l F
+GLIBC_2.29 towlower F
+GLIBC_2.29 towlower_l F
+GLIBC_2.29 towupper F
+GLIBC_2.29 towupper_l F
+GLIBC_2.29 tr_break F
+GLIBC_2.29 truncate F
+GLIBC_2.29 truncate64 F
+GLIBC_2.29 tsearch F
+GLIBC_2.29 ttyname F
+GLIBC_2.29 ttyname_r F
+GLIBC_2.29 ttyslot F
+GLIBC_2.29 twalk F
+GLIBC_2.29 tzname D 0x8
+GLIBC_2.29 tzset F
+GLIBC_2.29 ualarm F
+GLIBC_2.29 ulckpwdf F
+GLIBC_2.29 ulimit F
+GLIBC_2.29 umask F
+GLIBC_2.29 umount F
+GLIBC_2.29 umount2 F
+GLIBC_2.29 uname F
+GLIBC_2.29 ungetc F
+GLIBC_2.29 ungetwc F
+GLIBC_2.29 unlink F
+GLIBC_2.29 unlinkat F
+GLIBC_2.29 unlockpt F
+GLIBC_2.29 unsetenv F
+GLIBC_2.29 unshare F
+GLIBC_2.29 updwtmp F
+GLIBC_2.29 updwtmpx F
+GLIBC_2.29 uselocale F
+GLIBC_2.29 user2netname F
+GLIBC_2.29 usleep F
+GLIBC_2.29 utime F
+GLIBC_2.29 utimensat F
+GLIBC_2.29 utimes F
+GLIBC_2.29 utmpname F
+GLIBC_2.29 utmpxname F
+GLIBC_2.29 valloc F
+GLIBC_2.29 vasprintf F
+GLIBC_2.29 vdprintf F
+GLIBC_2.29 verr F
+GLIBC_2.29 verrx F
+GLIBC_2.29 versionsort F
+GLIBC_2.29 versionsort64 F
+GLIBC_2.29 vfork F
+GLIBC_2.29 vfprintf F
+GLIBC_2.29 vfscanf F
+GLIBC_2.29 vfwprintf F
+GLIBC_2.29 vfwscanf F
+GLIBC_2.29 vhangup F
+GLIBC_2.29 vlimit F
+GLIBC_2.29 vmsplice F
+GLIBC_2.29 vprintf F
+GLIBC_2.29 vscanf F
+GLIBC_2.29 vsnprintf F
+GLIBC_2.29 vsprintf F
+GLIBC_2.29 vsscanf F
+GLIBC_2.29 vswprintf F
+GLIBC_2.29 vswscanf F
+GLIBC_2.29 vsyslog F
+GLIBC_2.29 vtimes F
+GLIBC_2.29 vwarn F
+GLIBC_2.29 vwarnx F
+GLIBC_2.29 vwprintf F
+GLIBC_2.29 vwscanf F
+GLIBC_2.29 wait F
+GLIBC_2.29 wait3 F
+GLIBC_2.29 wait4 F
+GLIBC_2.29 waitid F
+GLIBC_2.29 waitpid F
+GLIBC_2.29 warn F
+GLIBC_2.29 warnx F
+GLIBC_2.29 wcpcpy F
+GLIBC_2.29 wcpncpy F
+GLIBC_2.29 wcrtomb F
+GLIBC_2.29 wcscasecmp F
+GLIBC_2.29 wcscasecmp_l F
+GLIBC_2.29 wcscat F
+GLIBC_2.29 wcschr F
+GLIBC_2.29 wcschrnul F
+GLIBC_2.29 wcscmp F
+GLIBC_2.29 wcscoll F
+GLIBC_2.29 wcscoll_l F
+GLIBC_2.29 wcscpy F
+GLIBC_2.29 wcscspn F
+GLIBC_2.29 wcsdup F
+GLIBC_2.29 wcsftime F
+GLIBC_2.29 wcsftime_l F
+GLIBC_2.29 wcslen F
+GLIBC_2.29 wcsncasecmp F
+GLIBC_2.29 wcsncasecmp_l F
+GLIBC_2.29 wcsncat F
+GLIBC_2.29 wcsncmp F
+GLIBC_2.29 wcsncpy F
+GLIBC_2.29 wcsnlen F
+GLIBC_2.29 wcsnrtombs F
+GLIBC_2.29 wcspbrk F
+GLIBC_2.29 wcsrchr F
+GLIBC_2.29 wcsrtombs F
+GLIBC_2.29 wcsspn F
+GLIBC_2.29 wcsstr F
+GLIBC_2.29 wcstod F
+GLIBC_2.29 wcstod_l F
+GLIBC_2.29 wcstof F
+GLIBC_2.29 wcstof32 F
+GLIBC_2.29 wcstof32_l F
+GLIBC_2.29 wcstof32x F
+GLIBC_2.29 wcstof32x_l F
+GLIBC_2.29 wcstof64 F
+GLIBC_2.29 wcstof64_l F
+GLIBC_2.29 wcstof_l F
+GLIBC_2.29 wcstoimax F
+GLIBC_2.29 wcstok F
+GLIBC_2.29 wcstol F
+GLIBC_2.29 wcstol_l F
+GLIBC_2.29 wcstold F
+GLIBC_2.29 wcstold_l F
+GLIBC_2.29 wcstoll F
+GLIBC_2.29 wcstoll_l F
+GLIBC_2.29 wcstombs F
+GLIBC_2.29 wcstoq F
+GLIBC_2.29 wcstoul F
+GLIBC_2.29 wcstoul_l F
+GLIBC_2.29 wcstoull F
+GLIBC_2.29 wcstoull_l F
+GLIBC_2.29 wcstoumax F
+GLIBC_2.29 wcstouq F
+GLIBC_2.29 wcswcs F
+GLIBC_2.29 wcswidth F
+GLIBC_2.29 wcsxfrm F
+GLIBC_2.29 wcsxfrm_l F
+GLIBC_2.29 wctob F
+GLIBC_2.29 wctomb F
+GLIBC_2.29 wctrans F
+GLIBC_2.29 wctrans_l F
+GLIBC_2.29 wctype F
+GLIBC_2.29 wctype_l F
+GLIBC_2.29 wcwidth F
+GLIBC_2.29 wmemchr F
+GLIBC_2.29 wmemcmp F
+GLIBC_2.29 wmemcpy F
+GLIBC_2.29 wmemmove F
+GLIBC_2.29 wmempcpy F
+GLIBC_2.29 wmemset F
+GLIBC_2.29 wordexp F
+GLIBC_2.29 wordfree F
+GLIBC_2.29 wprintf F
+GLIBC_2.29 write F
+GLIBC_2.29 writev F
+GLIBC_2.29 wscanf F
+GLIBC_2.29 xdecrypt F
+GLIBC_2.29 xdr_accepted_reply F
+GLIBC_2.29 xdr_array F
+GLIBC_2.29 xdr_authdes_cred F
+GLIBC_2.29 xdr_authdes_verf F
+GLIBC_2.29 xdr_authunix_parms F
+GLIBC_2.29 xdr_bool F
+GLIBC_2.29 xdr_bytes F
+GLIBC_2.29 xdr_callhdr F
+GLIBC_2.29 xdr_callmsg F
+GLIBC_2.29 xdr_char F
+GLIBC_2.29 xdr_cryptkeyarg F
+GLIBC_2.29 xdr_cryptkeyarg2 F
+GLIBC_2.29 xdr_cryptkeyres F
+GLIBC_2.29 xdr_des_block F
+GLIBC_2.29 xdr_double F
+GLIBC_2.29 xdr_enum F
+GLIBC_2.29 xdr_float F
+GLIBC_2.29 xdr_free F
+GLIBC_2.29 xdr_getcredres F
+GLIBC_2.29 xdr_hyper F
+GLIBC_2.29 xdr_int F
+GLIBC_2.29 xdr_int16_t F
+GLIBC_2.29 xdr_int32_t F
+GLIBC_2.29 xdr_int64_t F
+GLIBC_2.29 xdr_int8_t F
+GLIBC_2.29 xdr_key_netstarg F
+GLIBC_2.29 xdr_key_netstres F
+GLIBC_2.29 xdr_keybuf F
+GLIBC_2.29 xdr_keystatus F
+GLIBC_2.29 xdr_long F
+GLIBC_2.29 xdr_longlong_t F
+GLIBC_2.29 xdr_netnamestr F
+GLIBC_2.29 xdr_netobj F
+GLIBC_2.29 xdr_opaque F
+GLIBC_2.29 xdr_opaque_auth F
+GLIBC_2.29 xdr_pmap F
+GLIBC_2.29 xdr_pmaplist F
+GLIBC_2.29 xdr_pointer F
+GLIBC_2.29 xdr_quad_t F
+GLIBC_2.29 xdr_reference F
+GLIBC_2.29 xdr_rejected_reply F
+GLIBC_2.29 xdr_replymsg F
+GLIBC_2.29 xdr_rmtcall_args F
+GLIBC_2.29 xdr_rmtcallres F
+GLIBC_2.29 xdr_short F
+GLIBC_2.29 xdr_sizeof F
+GLIBC_2.29 xdr_string F
+GLIBC_2.29 xdr_u_char F
+GLIBC_2.29 xdr_u_hyper F
+GLIBC_2.29 xdr_u_int F
+GLIBC_2.29 xdr_u_long F
+GLIBC_2.29 xdr_u_longlong_t F
+GLIBC_2.29 xdr_u_quad_t F
+GLIBC_2.29 xdr_u_short F
+GLIBC_2.29 xdr_uint16_t F
+GLIBC_2.29 xdr_uint32_t F
+GLIBC_2.29 xdr_uint64_t F
+GLIBC_2.29 xdr_uint8_t F
+GLIBC_2.29 xdr_union F
+GLIBC_2.29 xdr_unixcred F
+GLIBC_2.29 xdr_vector F
+GLIBC_2.29 xdr_void F
+GLIBC_2.29 xdr_wrapstring F
+GLIBC_2.29 xdrmem_create F
+GLIBC_2.29 xdrrec_create F
+GLIBC_2.29 xdrrec_endofrecord F
+GLIBC_2.29 xdrrec_eof F
+GLIBC_2.29 xdrrec_skiprecord F
+GLIBC_2.29 xdrstdio_create F
+GLIBC_2.29 xencrypt F
+GLIBC_2.29 xprt_register F
+GLIBC_2.29 xprt_unregister F
diff --git a/sysdeps/unix/sysv/linux/csky/libcrypt.abilist b/sysdeps/unix/sysv/linux/csky/libcrypt.abilist
new file mode 100644
index 0000000..da3abbf
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/libcrypt.abilist
@@ -0,0 +1,2 @@
+GLIBC_2.29 crypt F
+GLIBC_2.29 crypt_r F
diff --git a/sysdeps/unix/sysv/linux/csky/libdl.abilist b/sysdeps/unix/sysv/linux/csky/libdl.abilist
new file mode 100644
index 0000000..8fcb609
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/libdl.abilist
@@ -0,0 +1,9 @@
+GLIBC_2.29 dladdr F
+GLIBC_2.29 dladdr1 F
+GLIBC_2.29 dlclose F
+GLIBC_2.29 dlerror F
+GLIBC_2.29 dlinfo F
+GLIBC_2.29 dlmopen F
+GLIBC_2.29 dlopen F
+GLIBC_2.29 dlsym F
+GLIBC_2.29 dlvsym F
diff --git a/sysdeps/unix/sysv/linux/csky/libm.abilist b/sysdeps/unix/sysv/linux/csky/libm.abilist
new file mode 100644
index 0000000..497f622
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/libm.abilist
@@ -0,0 +1,753 @@
+GLIBC_2.29 __acos_finite F
+GLIBC_2.29 __acosf_finite F
+GLIBC_2.29 __acosh_finite F
+GLIBC_2.29 __acoshf_finite F
+GLIBC_2.29 __asin_finite F
+GLIBC_2.29 __asinf_finite F
+GLIBC_2.29 __atan2_finite F
+GLIBC_2.29 __atan2f_finite F
+GLIBC_2.29 __atanh_finite F
+GLIBC_2.29 __atanhf_finite F
+GLIBC_2.29 __clog10 F
+GLIBC_2.29 __clog10f F
+GLIBC_2.29 __clog10l F
+GLIBC_2.29 __cosh_finite F
+GLIBC_2.29 __coshf_finite F
+GLIBC_2.29 __exp10_finite F
+GLIBC_2.29 __exp10f_finite F
+GLIBC_2.29 __exp2_finite F
+GLIBC_2.29 __exp2f_finite F
+GLIBC_2.29 __exp_finite F
+GLIBC_2.29 __expf_finite F
+GLIBC_2.29 __finite F
+GLIBC_2.29 __finitef F
+GLIBC_2.29 __fmod_finite F
+GLIBC_2.29 __fmodf_finite F
+GLIBC_2.29 __fpclassify F
+GLIBC_2.29 __fpclassifyf F
+GLIBC_2.29 __gamma_r_finite F
+GLIBC_2.29 __gammaf_r_finite F
+GLIBC_2.29 __hypot_finite F
+GLIBC_2.29 __hypotf_finite F
+GLIBC_2.29 __iseqsig F
+GLIBC_2.29 __iseqsigf F
+GLIBC_2.29 __issignaling F
+GLIBC_2.29 __issignalingf F
+GLIBC_2.29 __j0_finite F
+GLIBC_2.29 __j0f_finite F
+GLIBC_2.29 __j1_finite F
+GLIBC_2.29 __j1f_finite F
+GLIBC_2.29 __jn_finite F
+GLIBC_2.29 __jnf_finite F
+GLIBC_2.29 __lgamma_r_finite F
+GLIBC_2.29 __lgammaf_r_finite F
+GLIBC_2.29 __log10_finite F
+GLIBC_2.29 __log10f_finite F
+GLIBC_2.29 __log2_finite F
+GLIBC_2.29 __log2f_finite F
+GLIBC_2.29 __log_finite F
+GLIBC_2.29 __logf_finite F
+GLIBC_2.29 __pow_finite F
+GLIBC_2.29 __powf_finite F
+GLIBC_2.29 __remainder_finite F
+GLIBC_2.29 __remainderf_finite F
+GLIBC_2.29 __scalb_finite F
+GLIBC_2.29 __scalbf_finite F
+GLIBC_2.29 __signbit F
+GLIBC_2.29 __signbitf F
+GLIBC_2.29 __signgam D 0x4
+GLIBC_2.29 __sinh_finite F
+GLIBC_2.29 __sinhf_finite F
+GLIBC_2.29 __sqrt_finite F
+GLIBC_2.29 __sqrtf_finite F
+GLIBC_2.29 __y0_finite F
+GLIBC_2.29 __y0f_finite F
+GLIBC_2.29 __y1_finite F
+GLIBC_2.29 __y1f_finite F
+GLIBC_2.29 __yn_finite F
+GLIBC_2.29 __ynf_finite F
+GLIBC_2.29 acos F
+GLIBC_2.29 acosf F
+GLIBC_2.29 acosf32 F
+GLIBC_2.29 acosf32x F
+GLIBC_2.29 acosf64 F
+GLIBC_2.29 acosh F
+GLIBC_2.29 acoshf F
+GLIBC_2.29 acoshf32 F
+GLIBC_2.29 acoshf32x F
+GLIBC_2.29 acoshf64 F
+GLIBC_2.29 acoshl F
+GLIBC_2.29 acosl F
+GLIBC_2.29 asin F
+GLIBC_2.29 asinf F
+GLIBC_2.29 asinf32 F
+GLIBC_2.29 asinf32x F
+GLIBC_2.29 asinf64 F
+GLIBC_2.29 asinh F
+GLIBC_2.29 asinhf F
+GLIBC_2.29 asinhf32 F
+GLIBC_2.29 asinhf32x F
+GLIBC_2.29 asinhf64 F
+GLIBC_2.29 asinhl F
+GLIBC_2.29 asinl F
+GLIBC_2.29 atan F
+GLIBC_2.29 atan2 F
+GLIBC_2.29 atan2f F
+GLIBC_2.29 atan2f32 F
+GLIBC_2.29 atan2f32x F
+GLIBC_2.29 atan2f64 F
+GLIBC_2.29 atan2l F
+GLIBC_2.29 atanf F
+GLIBC_2.29 atanf32 F
+GLIBC_2.29 atanf32x F
+GLIBC_2.29 atanf64 F
+GLIBC_2.29 atanh F
+GLIBC_2.29 atanhf F
+GLIBC_2.29 atanhf32 F
+GLIBC_2.29 atanhf32x F
+GLIBC_2.29 atanhf64 F
+GLIBC_2.29 atanhl F
+GLIBC_2.29 atanl F
+GLIBC_2.29 cabs F
+GLIBC_2.29 cabsf F
+GLIBC_2.29 cabsf32 F
+GLIBC_2.29 cabsf32x F
+GLIBC_2.29 cabsf64 F
+GLIBC_2.29 cabsl F
+GLIBC_2.29 cacos F
+GLIBC_2.29 cacosf F
+GLIBC_2.29 cacosf32 F
+GLIBC_2.29 cacosf32x F
+GLIBC_2.29 cacosf64 F
+GLIBC_2.29 cacosh F
+GLIBC_2.29 cacoshf F
+GLIBC_2.29 cacoshf32 F
+GLIBC_2.29 cacoshf32x F
+GLIBC_2.29 cacoshf64 F
+GLIBC_2.29 cacoshl F
+GLIBC_2.29 cacosl F
+GLIBC_2.29 canonicalize F
+GLIBC_2.29 canonicalizef F
+GLIBC_2.29 canonicalizef32 F
+GLIBC_2.29 canonicalizef32x F
+GLIBC_2.29 canonicalizef64 F
+GLIBC_2.29 canonicalizel F
+GLIBC_2.29 carg F
+GLIBC_2.29 cargf F
+GLIBC_2.29 cargf32 F
+GLIBC_2.29 cargf32x F
+GLIBC_2.29 cargf64 F
+GLIBC_2.29 cargl F
+GLIBC_2.29 casin F
+GLIBC_2.29 casinf F
+GLIBC_2.29 casinf32 F
+GLIBC_2.29 casinf32x F
+GLIBC_2.29 casinf64 F
+GLIBC_2.29 casinh F
+GLIBC_2.29 casinhf F
+GLIBC_2.29 casinhf32 F
+GLIBC_2.29 casinhf32x F
+GLIBC_2.29 casinhf64 F
+GLIBC_2.29 casinhl F
+GLIBC_2.29 casinl F
+GLIBC_2.29 catan F
+GLIBC_2.29 catanf F
+GLIBC_2.29 catanf32 F
+GLIBC_2.29 catanf32x F
+GLIBC_2.29 catanf64 F
+GLIBC_2.29 catanh F
+GLIBC_2.29 catanhf F
+GLIBC_2.29 catanhf32 F
+GLIBC_2.29 catanhf32x F
+GLIBC_2.29 catanhf64 F
+GLIBC_2.29 catanhl F
+GLIBC_2.29 catanl F
+GLIBC_2.29 cbrt F
+GLIBC_2.29 cbrtf F
+GLIBC_2.29 cbrtf32 F
+GLIBC_2.29 cbrtf32x F
+GLIBC_2.29 cbrtf64 F
+GLIBC_2.29 cbrtl F
+GLIBC_2.29 ccos F
+GLIBC_2.29 ccosf F
+GLIBC_2.29 ccosf32 F
+GLIBC_2.29 ccosf32x F
+GLIBC_2.29 ccosf64 F
+GLIBC_2.29 ccosh F
+GLIBC_2.29 ccoshf F
+GLIBC_2.29 ccoshf32 F
+GLIBC_2.29 ccoshf32x F
+GLIBC_2.29 ccoshf64 F
+GLIBC_2.29 ccoshl F
+GLIBC_2.29 ccosl F
+GLIBC_2.29 ceil F
+GLIBC_2.29 ceilf F
+GLIBC_2.29 ceilf32 F
+GLIBC_2.29 ceilf32x F
+GLIBC_2.29 ceilf64 F
+GLIBC_2.29 ceill F
+GLIBC_2.29 cexp F
+GLIBC_2.29 cexpf F
+GLIBC_2.29 cexpf32 F
+GLIBC_2.29 cexpf32x F
+GLIBC_2.29 cexpf64 F
+GLIBC_2.29 cexpl F
+GLIBC_2.29 cimag F
+GLIBC_2.29 cimagf F
+GLIBC_2.29 cimagf32 F
+GLIBC_2.29 cimagf32x F
+GLIBC_2.29 cimagf64 F
+GLIBC_2.29 cimagl F
+GLIBC_2.29 clog F
+GLIBC_2.29 clog10 F
+GLIBC_2.29 clog10f F
+GLIBC_2.29 clog10f32 F
+GLIBC_2.29 clog10f32x F
+GLIBC_2.29 clog10f64 F
+GLIBC_2.29 clog10l F
+GLIBC_2.29 clogf F
+GLIBC_2.29 clogf32 F
+GLIBC_2.29 clogf32x F
+GLIBC_2.29 clogf64 F
+GLIBC_2.29 clogl F
+GLIBC_2.29 conj F
+GLIBC_2.29 conjf F
+GLIBC_2.29 conjf32 F
+GLIBC_2.29 conjf32x F
+GLIBC_2.29 conjf64 F
+GLIBC_2.29 conjl F
+GLIBC_2.29 copysign F
+GLIBC_2.29 copysignf F
+GLIBC_2.29 copysignf32 F
+GLIBC_2.29 copysignf32x F
+GLIBC_2.29 copysignf64 F
+GLIBC_2.29 copysignl F
+GLIBC_2.29 cos F
+GLIBC_2.29 cosf F
+GLIBC_2.29 cosf32 F
+GLIBC_2.29 cosf32x F
+GLIBC_2.29 cosf64 F
+GLIBC_2.29 cosh F
+GLIBC_2.29 coshf F
+GLIBC_2.29 coshf32 F
+GLIBC_2.29 coshf32x F
+GLIBC_2.29 coshf64 F
+GLIBC_2.29 coshl F
+GLIBC_2.29 cosl F
+GLIBC_2.29 cpow F
+GLIBC_2.29 cpowf F
+GLIBC_2.29 cpowf32 F
+GLIBC_2.29 cpowf32x F
+GLIBC_2.29 cpowf64 F
+GLIBC_2.29 cpowl F
+GLIBC_2.29 cproj F
+GLIBC_2.29 cprojf F
+GLIBC_2.29 cprojf32 F
+GLIBC_2.29 cprojf32x F
+GLIBC_2.29 cprojf64 F
+GLIBC_2.29 cprojl F
+GLIBC_2.29 creal F
+GLIBC_2.29 crealf F
+GLIBC_2.29 crealf32 F
+GLIBC_2.29 crealf32x F
+GLIBC_2.29 crealf64 F
+GLIBC_2.29 creall F
+GLIBC_2.29 csin F
+GLIBC_2.29 csinf F
+GLIBC_2.29 csinf32 F
+GLIBC_2.29 csinf32x F
+GLIBC_2.29 csinf64 F
+GLIBC_2.29 csinh F
+GLIBC_2.29 csinhf F
+GLIBC_2.29 csinhf32 F
+GLIBC_2.29 csinhf32x F
+GLIBC_2.29 csinhf64 F
+GLIBC_2.29 csinhl F
+GLIBC_2.29 csinl F
+GLIBC_2.29 csqrt F
+GLIBC_2.29 csqrtf F
+GLIBC_2.29 csqrtf32 F
+GLIBC_2.29 csqrtf32x F
+GLIBC_2.29 csqrtf64 F
+GLIBC_2.29 csqrtl F
+GLIBC_2.29 ctan F
+GLIBC_2.29 ctanf F
+GLIBC_2.29 ctanf32 F
+GLIBC_2.29 ctanf32x F
+GLIBC_2.29 ctanf64 F
+GLIBC_2.29 ctanh F
+GLIBC_2.29 ctanhf F
+GLIBC_2.29 ctanhf32 F
+GLIBC_2.29 ctanhf32x F
+GLIBC_2.29 ctanhf64 F
+GLIBC_2.29 ctanhl F
+GLIBC_2.29 ctanl F
+GLIBC_2.29 daddl F
+GLIBC_2.29 ddivl F
+GLIBC_2.29 dmull F
+GLIBC_2.29 drem F
+GLIBC_2.29 dremf F
+GLIBC_2.29 dreml F
+GLIBC_2.29 dsubl F
+GLIBC_2.29 erf F
+GLIBC_2.29 erfc F
+GLIBC_2.29 erfcf F
+GLIBC_2.29 erfcf32 F
+GLIBC_2.29 erfcf32x F
+GLIBC_2.29 erfcf64 F
+GLIBC_2.29 erfcl F
+GLIBC_2.29 erff F
+GLIBC_2.29 erff32 F
+GLIBC_2.29 erff32x F
+GLIBC_2.29 erff64 F
+GLIBC_2.29 erfl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp10 F
+GLIBC_2.29 exp10f F
+GLIBC_2.29 exp10f32 F
+GLIBC_2.29 exp10f32x F
+GLIBC_2.29 exp10f64 F
+GLIBC_2.29 exp10l F
+GLIBC_2.29 exp2 F
+GLIBC_2.29 exp2f F
+GLIBC_2.29 exp2f32 F
+GLIBC_2.29 exp2f32x F
+GLIBC_2.29 exp2f64 F
+GLIBC_2.29 exp2l F
+GLIBC_2.29 expf F
+GLIBC_2.29 expf32 F
+GLIBC_2.29 expf32x F
+GLIBC_2.29 expf64 F
+GLIBC_2.29 expl F
+GLIBC_2.29 expm1 F
+GLIBC_2.29 expm1f F
+GLIBC_2.29 expm1f32 F
+GLIBC_2.29 expm1f32x F
+GLIBC_2.29 expm1f64 F
+GLIBC_2.29 expm1l F
+GLIBC_2.29 f32addf32x F
+GLIBC_2.29 f32addf64 F
+GLIBC_2.29 f32divf32x F
+GLIBC_2.29 f32divf64 F
+GLIBC_2.29 f32mulf32x F
+GLIBC_2.29 f32mulf64 F
+GLIBC_2.29 f32subf32x F
+GLIBC_2.29 f32subf64 F
+GLIBC_2.29 f32xaddf64 F
+GLIBC_2.29 f32xdivf64 F
+GLIBC_2.29 f32xmulf64 F
+GLIBC_2.29 f32xsubf64 F
+GLIBC_2.29 fabs F
+GLIBC_2.29 fabsf F
+GLIBC_2.29 fabsf32 F
+GLIBC_2.29 fabsf32x F
+GLIBC_2.29 fabsf64 F
+GLIBC_2.29 fabsl F
+GLIBC_2.29 fadd F
+GLIBC_2.29 faddl F
+GLIBC_2.29 fdim F
+GLIBC_2.29 fdimf F
+GLIBC_2.29 fdimf32 F
+GLIBC_2.29 fdimf32x F
+GLIBC_2.29 fdimf64 F
+GLIBC_2.29 fdiml F
+GLIBC_2.29 fdiv F
+GLIBC_2.29 fdivl F
+GLIBC_2.29 feclearexcept F
+GLIBC_2.29 fedisableexcept F
+GLIBC_2.29 feenableexcept F
+GLIBC_2.29 fegetenv F
+GLIBC_2.29 fegetexcept F
+GLIBC_2.29 fegetexceptflag F
+GLIBC_2.29 fegetmode F
+GLIBC_2.29 fegetround F
+GLIBC_2.29 feholdexcept F
+GLIBC_2.29 feraiseexcept F
+GLIBC_2.29 fesetenv F
+GLIBC_2.29 fesetexcept F
+GLIBC_2.29 fesetexceptflag F
+GLIBC_2.29 fesetmode F
+GLIBC_2.29 fesetround F
+GLIBC_2.29 fetestexcept F
+GLIBC_2.29 fetestexceptflag F
+GLIBC_2.29 feupdateenv F
+GLIBC_2.29 finite F
+GLIBC_2.29 finitef F
+GLIBC_2.29 finitel F
+GLIBC_2.29 floor F
+GLIBC_2.29 floorf F
+GLIBC_2.29 floorf32 F
+GLIBC_2.29 floorf32x F
+GLIBC_2.29 floorf64 F
+GLIBC_2.29 floorl F
+GLIBC_2.29 fma F
+GLIBC_2.29 fmaf F
+GLIBC_2.29 fmaf32 F
+GLIBC_2.29 fmaf32x F
+GLIBC_2.29 fmaf64 F
+GLIBC_2.29 fmal F
+GLIBC_2.29 fmax F
+GLIBC_2.29 fmaxf F
+GLIBC_2.29 fmaxf32 F
+GLIBC_2.29 fmaxf32x F
+GLIBC_2.29 fmaxf64 F
+GLIBC_2.29 fmaxl F
+GLIBC_2.29 fmaxmag F
+GLIBC_2.29 fmaxmagf F
+GLIBC_2.29 fmaxmagf32 F
+GLIBC_2.29 fmaxmagf32x F
+GLIBC_2.29 fmaxmagf64 F
+GLIBC_2.29 fmaxmagl F
+GLIBC_2.29 fmin F
+GLIBC_2.29 fminf F
+GLIBC_2.29 fminf32 F
+GLIBC_2.29 fminf32x F
+GLIBC_2.29 fminf64 F
+GLIBC_2.29 fminl F
+GLIBC_2.29 fminmag F
+GLIBC_2.29 fminmagf F
+GLIBC_2.29 fminmagf32 F
+GLIBC_2.29 fminmagf32x F
+GLIBC_2.29 fminmagf64 F
+GLIBC_2.29 fminmagl F
+GLIBC_2.29 fmod F
+GLIBC_2.29 fmodf F
+GLIBC_2.29 fmodf32 F
+GLIBC_2.29 fmodf32x F
+GLIBC_2.29 fmodf64 F
+GLIBC_2.29 fmodl F
+GLIBC_2.29 fmul F
+GLIBC_2.29 fmull F
+GLIBC_2.29 frexp F
+GLIBC_2.29 frexpf F
+GLIBC_2.29 frexpf32 F
+GLIBC_2.29 frexpf32x F
+GLIBC_2.29 frexpf64 F
+GLIBC_2.29 frexpl F
+GLIBC_2.29 fromfp F
+GLIBC_2.29 fromfpf F
+GLIBC_2.29 fromfpf32 F
+GLIBC_2.29 fromfpf32x F
+GLIBC_2.29 fromfpf64 F
+GLIBC_2.29 fromfpl F
+GLIBC_2.29 fromfpx F
+GLIBC_2.29 fromfpxf F
+GLIBC_2.29 fromfpxf32 F
+GLIBC_2.29 fromfpxf32x F
+GLIBC_2.29 fromfpxf64 F
+GLIBC_2.29 fromfpxl F
+GLIBC_2.29 fsub F
+GLIBC_2.29 fsubl F
+GLIBC_2.29 gamma F
+GLIBC_2.29 gammaf F
+GLIBC_2.29 gammal F
+GLIBC_2.29 getpayload F
+GLIBC_2.29 getpayloadf F
+GLIBC_2.29 getpayloadf32 F
+GLIBC_2.29 getpayloadf32x F
+GLIBC_2.29 getpayloadf64 F
+GLIBC_2.29 getpayloadl F
+GLIBC_2.29 hypot F
+GLIBC_2.29 hypotf F
+GLIBC_2.29 hypotf32 F
+GLIBC_2.29 hypotf32x F
+GLIBC_2.29 hypotf64 F
+GLIBC_2.29 hypotl F
+GLIBC_2.29 ilogb F
+GLIBC_2.29 ilogbf F
+GLIBC_2.29 ilogbf32 F
+GLIBC_2.29 ilogbf32x F
+GLIBC_2.29 ilogbf64 F
+GLIBC_2.29 ilogbl F
+GLIBC_2.29 j0 F
+GLIBC_2.29 j0f F
+GLIBC_2.29 j0f32 F
+GLIBC_2.29 j0f32x F
+GLIBC_2.29 j0f64 F
+GLIBC_2.29 j0l F
+GLIBC_2.29 j1 F
+GLIBC_2.29 j1f F
+GLIBC_2.29 j1f32 F
+GLIBC_2.29 j1f32x F
+GLIBC_2.29 j1f64 F
+GLIBC_2.29 j1l F
+GLIBC_2.29 jn F
+GLIBC_2.29 jnf F
+GLIBC_2.29 jnf32 F
+GLIBC_2.29 jnf32x F
+GLIBC_2.29 jnf64 F
+GLIBC_2.29 jnl F
+GLIBC_2.29 ldexp F
+GLIBC_2.29 ldexpf F
+GLIBC_2.29 ldexpf32 F
+GLIBC_2.29 ldexpf32x F
+GLIBC_2.29 ldexpf64 F
+GLIBC_2.29 ldexpl F
+GLIBC_2.29 lgamma F
+GLIBC_2.29 lgamma_r F
+GLIBC_2.29 lgammaf F
+GLIBC_2.29 lgammaf32 F
+GLIBC_2.29 lgammaf32_r F
+GLIBC_2.29 lgammaf32x F
+GLIBC_2.29 lgammaf32x_r F
+GLIBC_2.29 lgammaf64 F
+GLIBC_2.29 lgammaf64_r F
+GLIBC_2.29 lgammaf_r F
+GLIBC_2.29 lgammal F
+GLIBC_2.29 lgammal_r F
+GLIBC_2.29 llogb F
+GLIBC_2.29 llogbf F
+GLIBC_2.29 llogbf32 F
+GLIBC_2.29 llogbf32x F
+GLIBC_2.29 llogbf64 F
+GLIBC_2.29 llogbl F
+GLIBC_2.29 llrint F
+GLIBC_2.29 llrintf F
+GLIBC_2.29 llrintf32 F
+GLIBC_2.29 llrintf32x F
+GLIBC_2.29 llrintf64 F
+GLIBC_2.29 llrintl F
+GLIBC_2.29 llround F
+GLIBC_2.29 llroundf F
+GLIBC_2.29 llroundf32 F
+GLIBC_2.29 llroundf32x F
+GLIBC_2.29 llroundf64 F
+GLIBC_2.29 llroundl F
+GLIBC_2.29 log F
+GLIBC_2.29 log10 F
+GLIBC_2.29 log10f F
+GLIBC_2.29 log10f32 F
+GLIBC_2.29 log10f32x F
+GLIBC_2.29 log10f64 F
+GLIBC_2.29 log10l F
+GLIBC_2.29 log1p F
+GLIBC_2.29 log1pf F
+GLIBC_2.29 log1pf32 F
+GLIBC_2.29 log1pf32x F
+GLIBC_2.29 log1pf64 F
+GLIBC_2.29 log1pl F
+GLIBC_2.29 log2 F
+GLIBC_2.29 log2f F
+GLIBC_2.29 log2f32 F
+GLIBC_2.29 log2f32x F
+GLIBC_2.29 log2f64 F
+GLIBC_2.29 log2l F
+GLIBC_2.29 logb F
+GLIBC_2.29 logbf F
+GLIBC_2.29 logbf32 F
+GLIBC_2.29 logbf32x F
+GLIBC_2.29 logbf64 F
+GLIBC_2.29 logbl F
+GLIBC_2.29 logf F
+GLIBC_2.29 logf32 F
+GLIBC_2.29 logf32x F
+GLIBC_2.29 logf64 F
+GLIBC_2.29 logl F
+GLIBC_2.29 lrint F
+GLIBC_2.29 lrintf F
+GLIBC_2.29 lrintf32 F
+GLIBC_2.29 lrintf32x F
+GLIBC_2.29 lrintf64 F
+GLIBC_2.29 lrintl F
+GLIBC_2.29 lround F
+GLIBC_2.29 lroundf F
+GLIBC_2.29 lroundf32 F
+GLIBC_2.29 lroundf32x F
+GLIBC_2.29 lroundf64 F
+GLIBC_2.29 lroundl F
+GLIBC_2.29 modf F
+GLIBC_2.29 modff F
+GLIBC_2.29 modff32 F
+GLIBC_2.29 modff32x F
+GLIBC_2.29 modff64 F
+GLIBC_2.29 modfl F
+GLIBC_2.29 nan F
+GLIBC_2.29 nanf F
+GLIBC_2.29 nanf32 F
+GLIBC_2.29 nanf32x F
+GLIBC_2.29 nanf64 F
+GLIBC_2.29 nanl F
+GLIBC_2.29 nearbyint F
+GLIBC_2.29 nearbyintf F
+GLIBC_2.29 nearbyintf32 F
+GLIBC_2.29 nearbyintf32x F
+GLIBC_2.29 nearbyintf64 F
+GLIBC_2.29 nearbyintl F
+GLIBC_2.29 nextafter F
+GLIBC_2.29 nextafterf F
+GLIBC_2.29 nextafterf32 F
+GLIBC_2.29 nextafterf32x F
+GLIBC_2.29 nextafterf64 F
+GLIBC_2.29 nextafterl F
+GLIBC_2.29 nextdown F
+GLIBC_2.29 nextdownf F
+GLIBC_2.29 nextdownf32 F
+GLIBC_2.29 nextdownf32x F
+GLIBC_2.29 nextdownf64 F
+GLIBC_2.29 nextdownl F
+GLIBC_2.29 nexttoward F
+GLIBC_2.29 nexttowardf F
+GLIBC_2.29 nexttowardl F
+GLIBC_2.29 nextup F
+GLIBC_2.29 nextupf F
+GLIBC_2.29 nextupf32 F
+GLIBC_2.29 nextupf32x F
+GLIBC_2.29 nextupf64 F
+GLIBC_2.29 nextupl F
+GLIBC_2.29 pow F
+GLIBC_2.29 powf F
+GLIBC_2.29 powf32 F
+GLIBC_2.29 powf32x F
+GLIBC_2.29 powf64 F
+GLIBC_2.29 powl F
+GLIBC_2.29 remainder F
+GLIBC_2.29 remainderf F
+GLIBC_2.29 remainderf32 F
+GLIBC_2.29 remainderf32x F
+GLIBC_2.29 remainderf64 F
+GLIBC_2.29 remainderl F
+GLIBC_2.29 remquo F
+GLIBC_2.29 remquof F
+GLIBC_2.29 remquof32 F
+GLIBC_2.29 remquof32x F
+GLIBC_2.29 remquof64 F
+GLIBC_2.29 remquol F
+GLIBC_2.29 rint F
+GLIBC_2.29 rintf F
+GLIBC_2.29 rintf32 F
+GLIBC_2.29 rintf32x F
+GLIBC_2.29 rintf64 F
+GLIBC_2.29 rintl F
+GLIBC_2.29 round F
+GLIBC_2.29 roundeven F
+GLIBC_2.29 roundevenf F
+GLIBC_2.29 roundevenf32 F
+GLIBC_2.29 roundevenf32x F
+GLIBC_2.29 roundevenf64 F
+GLIBC_2.29 roundevenl F
+GLIBC_2.29 roundf F
+GLIBC_2.29 roundf32 F
+GLIBC_2.29 roundf32x F
+GLIBC_2.29 roundf64 F
+GLIBC_2.29 roundl F
+GLIBC_2.29 scalb F
+GLIBC_2.29 scalbf F
+GLIBC_2.29 scalbl F
+GLIBC_2.29 scalbln F
+GLIBC_2.29 scalblnf F
+GLIBC_2.29 scalblnf32 F
+GLIBC_2.29 scalblnf32x F
+GLIBC_2.29 scalblnf64 F
+GLIBC_2.29 scalblnl F
+GLIBC_2.29 scalbn F
+GLIBC_2.29 scalbnf F
+GLIBC_2.29 scalbnf32 F
+GLIBC_2.29 scalbnf32x F
+GLIBC_2.29 scalbnf64 F
+GLIBC_2.29 scalbnl F
+GLIBC_2.29 setpayload F
+GLIBC_2.29 setpayloadf F
+GLIBC_2.29 setpayloadf32 F
+GLIBC_2.29 setpayloadf32x F
+GLIBC_2.29 setpayloadf64 F
+GLIBC_2.29 setpayloadl F
+GLIBC_2.29 setpayloadsig F
+GLIBC_2.29 setpayloadsigf F
+GLIBC_2.29 setpayloadsigf32 F
+GLIBC_2.29 setpayloadsigf32x F
+GLIBC_2.29 setpayloadsigf64 F
+GLIBC_2.29 setpayloadsigl F
+GLIBC_2.29 signgam D 0x4
+GLIBC_2.29 significand F
+GLIBC_2.29 significandf F
+GLIBC_2.29 significandl F
+GLIBC_2.29 sin F
+GLIBC_2.29 sincos F
+GLIBC_2.29 sincosf F
+GLIBC_2.29 sincosf32 F
+GLIBC_2.29 sincosf32x F
+GLIBC_2.29 sincosf64 F
+GLIBC_2.29 sincosl F
+GLIBC_2.29 sinf F
+GLIBC_2.29 sinf32 F
+GLIBC_2.29 sinf32x F
+GLIBC_2.29 sinf64 F
+GLIBC_2.29 sinh F
+GLIBC_2.29 sinhf F
+GLIBC_2.29 sinhf32 F
+GLIBC_2.29 sinhf32x F
+GLIBC_2.29 sinhf64 F
+GLIBC_2.29 sinhl F
+GLIBC_2.29 sinl F
+GLIBC_2.29 sqrt F
+GLIBC_2.29 sqrtf F
+GLIBC_2.29 sqrtf32 F
+GLIBC_2.29 sqrtf32x F
+GLIBC_2.29 sqrtf64 F
+GLIBC_2.29 sqrtl F
+GLIBC_2.29 tan F
+GLIBC_2.29 tanf F
+GLIBC_2.29 tanf32 F
+GLIBC_2.29 tanf32x F
+GLIBC_2.29 tanf64 F
+GLIBC_2.29 tanh F
+GLIBC_2.29 tanhf F
+GLIBC_2.29 tanhf32 F
+GLIBC_2.29 tanhf32x F
+GLIBC_2.29 tanhf64 F
+GLIBC_2.29 tanhl F
+GLIBC_2.29 tanl F
+GLIBC_2.29 tgamma F
+GLIBC_2.29 tgammaf F
+GLIBC_2.29 tgammaf32 F
+GLIBC_2.29 tgammaf32x F
+GLIBC_2.29 tgammaf64 F
+GLIBC_2.29 tgammal F
+GLIBC_2.29 totalorder F
+GLIBC_2.29 totalorderf F
+GLIBC_2.29 totalorderf32 F
+GLIBC_2.29 totalorderf32x F
+GLIBC_2.29 totalorderf64 F
+GLIBC_2.29 totalorderl F
+GLIBC_2.29 totalordermag F
+GLIBC_2.29 totalordermagf F
+GLIBC_2.29 totalordermagf32 F
+GLIBC_2.29 totalordermagf32x F
+GLIBC_2.29 totalordermagf64 F
+GLIBC_2.29 totalordermagl F
+GLIBC_2.29 trunc F
+GLIBC_2.29 truncf F
+GLIBC_2.29 truncf32 F
+GLIBC_2.29 truncf32x F
+GLIBC_2.29 truncf64 F
+GLIBC_2.29 truncl F
+GLIBC_2.29 ufromfp F
+GLIBC_2.29 ufromfpf F
+GLIBC_2.29 ufromfpf32 F
+GLIBC_2.29 ufromfpf32x F
+GLIBC_2.29 ufromfpf64 F
+GLIBC_2.29 ufromfpl F
+GLIBC_2.29 ufromfpx F
+GLIBC_2.29 ufromfpxf F
+GLIBC_2.29 ufromfpxf32 F
+GLIBC_2.29 ufromfpxf32x F
+GLIBC_2.29 ufromfpxf64 F
+GLIBC_2.29 ufromfpxl F
+GLIBC_2.29 y0 F
+GLIBC_2.29 y0f F
+GLIBC_2.29 y0f32 F
+GLIBC_2.29 y0f32x F
+GLIBC_2.29 y0f64 F
+GLIBC_2.29 y0l F
+GLIBC_2.29 y1 F
+GLIBC_2.29 y1f F
+GLIBC_2.29 y1f32 F
+GLIBC_2.29 y1f32x F
+GLIBC_2.29 y1f64 F
+GLIBC_2.29 y1l F
+GLIBC_2.29 yn F
+GLIBC_2.29 ynf F
+GLIBC_2.29 ynf32 F
+GLIBC_2.29 ynf32x F
+GLIBC_2.29 ynf64 F
+GLIBC_2.29 ynl F
diff --git a/sysdeps/unix/sysv/linux/csky/libnsl.abilist b/sysdeps/unix/sysv/linux/csky/libnsl.abilist
new file mode 100644
index 0000000..c8ef9e3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/libnsl.abilist
@@ -0,0 +1,120 @@
+GLIBC_2.29 __free_fdresult F
+GLIBC_2.29 __nis_default_access F
+GLIBC_2.29 __nis_default_group F
+GLIBC_2.29 __nis_default_owner F
+GLIBC_2.29 __nis_default_ttl F
+GLIBC_2.29 __nis_finddirectory F
+GLIBC_2.29 __nisbind_connect F
+GLIBC_2.29 __nisbind_create F
+GLIBC_2.29 __nisbind_destroy F
+GLIBC_2.29 __nisbind_next F
+GLIBC_2.29 __yp_check F
+GLIBC_2.29 nis_add F
+GLIBC_2.29 nis_add_entry F
+GLIBC_2.29 nis_addmember F
+GLIBC_2.29 nis_checkpoint F
+GLIBC_2.29 nis_clone_directory F
+GLIBC_2.29 nis_clone_object F
+GLIBC_2.29 nis_clone_result F
+GLIBC_2.29 nis_creategroup F
+GLIBC_2.29 nis_destroy_object F
+GLIBC_2.29 nis_destroygroup F
+GLIBC_2.29 nis_dir_cmp F
+GLIBC_2.29 nis_domain_of F
+GLIBC_2.29 nis_domain_of_r F
+GLIBC_2.29 nis_first_entry F
+GLIBC_2.29 nis_free_directory F
+GLIBC_2.29 nis_free_object F
+GLIBC_2.29 nis_free_request F
+GLIBC_2.29 nis_freenames F
+GLIBC_2.29 nis_freeresult F
+GLIBC_2.29 nis_freeservlist F
+GLIBC_2.29 nis_freetags F
+GLIBC_2.29 nis_getnames F
+GLIBC_2.29 nis_getservlist F
+GLIBC_2.29 nis_ismember F
+GLIBC_2.29 nis_leaf_of F
+GLIBC_2.29 nis_leaf_of_r F
+GLIBC_2.29 nis_lerror F
+GLIBC_2.29 nis_list F
+GLIBC_2.29 nis_local_directory F
+GLIBC_2.29 nis_local_group F
+GLIBC_2.29 nis_local_host F
+GLIBC_2.29 nis_local_principal F
+GLIBC_2.29 nis_lookup F
+GLIBC_2.29 nis_mkdir F
+GLIBC_2.29 nis_modify F
+GLIBC_2.29 nis_modify_entry F
+GLIBC_2.29 nis_name_of F
+GLIBC_2.29 nis_name_of_r F
+GLIBC_2.29 nis_next_entry F
+GLIBC_2.29 nis_perror F
+GLIBC_2.29 nis_ping F
+GLIBC_2.29 nis_print_directory F
+GLIBC_2.29 nis_print_entry F
+GLIBC_2.29 nis_print_group F
+GLIBC_2.29 nis_print_group_entry F
+GLIBC_2.29 nis_print_link F
+GLIBC_2.29 nis_print_object F
+GLIBC_2.29 nis_print_result F
+GLIBC_2.29 nis_print_rights F
+GLIBC_2.29 nis_print_table F
+GLIBC_2.29 nis_read_obj F
+GLIBC_2.29 nis_remove F
+GLIBC_2.29 nis_remove_entry F
+GLIBC_2.29 nis_removemember F
+GLIBC_2.29 nis_rmdir F
+GLIBC_2.29 nis_servstate F
+GLIBC_2.29 nis_sperrno F
+GLIBC_2.29 nis_sperror F
+GLIBC_2.29 nis_sperror_r F
+GLIBC_2.29 nis_stats F
+GLIBC_2.29 nis_verifygroup F
+GLIBC_2.29 nis_write_obj F
+GLIBC_2.29 readColdStartFile F
+GLIBC_2.29 writeColdStartFile F
+GLIBC_2.29 xdr_cback_data F
+GLIBC_2.29 xdr_domainname F
+GLIBC_2.29 xdr_keydat F
+GLIBC_2.29 xdr_mapname F
+GLIBC_2.29 xdr_obj_p F
+GLIBC_2.29 xdr_peername F
+GLIBC_2.29 xdr_valdat F
+GLIBC_2.29 xdr_yp_buf F
+GLIBC_2.29 xdr_ypall F
+GLIBC_2.29 xdr_ypbind_binding F
+GLIBC_2.29 xdr_ypbind_resp F
+GLIBC_2.29 xdr_ypbind_resptype F
+GLIBC_2.29 xdr_ypbind_setdom F
+GLIBC_2.29 xdr_ypdelete_args F
+GLIBC_2.29 xdr_ypmap_parms F
+GLIBC_2.29 xdr_ypmaplist F
+GLIBC_2.29 xdr_yppush_status F
+GLIBC_2.29 xdr_yppushresp_xfr F
+GLIBC_2.29 xdr_ypreq_key F
+GLIBC_2.29 xdr_ypreq_nokey F
+GLIBC_2.29 xdr_ypreq_xfr F
+GLIBC_2.29 xdr_ypresp_all F
+GLIBC_2.29 xdr_ypresp_key_val F
+GLIBC_2.29 xdr_ypresp_maplist F
+GLIBC_2.29 xdr_ypresp_master F
+GLIBC_2.29 xdr_ypresp_order F
+GLIBC_2.29 xdr_ypresp_val F
+GLIBC_2.29 xdr_ypresp_xfr F
+GLIBC_2.29 xdr_ypstat F
+GLIBC_2.29 xdr_ypupdate_args F
+GLIBC_2.29 xdr_ypxfrstat F
+GLIBC_2.29 yp_all F
+GLIBC_2.29 yp_bind F
+GLIBC_2.29 yp_first F
+GLIBC_2.29 yp_get_default_domain F
+GLIBC_2.29 yp_maplist F
+GLIBC_2.29 yp_master F
+GLIBC_2.29 yp_match F
+GLIBC_2.29 yp_next F
+GLIBC_2.29 yp_order F
+GLIBC_2.29 yp_unbind F
+GLIBC_2.29 yp_update F
+GLIBC_2.29 ypbinderr_string F
+GLIBC_2.29 yperr_string F
+GLIBC_2.29 ypprot_err F
diff --git a/sysdeps/unix/sysv/linux/csky/libpthread.abilist b/sysdeps/unix/sysv/linux/csky/libpthread.abilist
new file mode 100644
index 0000000..ea4b79a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/libpthread.abilist
@@ -0,0 +1,235 @@
+GLIBC_2.29 _IO_flockfile F
+GLIBC_2.29 _IO_ftrylockfile F
+GLIBC_2.29 _IO_funlockfile F
+GLIBC_2.29 __close F
+GLIBC_2.29 __connect F
+GLIBC_2.29 __errno_location F
+GLIBC_2.29 __h_errno_location F
+GLIBC_2.29 __libc_allocate_rtsig F
+GLIBC_2.29 __libc_current_sigrtmax F
+GLIBC_2.29 __libc_current_sigrtmin F
+GLIBC_2.29 __lseek F
+GLIBC_2.29 __nanosleep F
+GLIBC_2.29 __open F
+GLIBC_2.29 __open64 F
+GLIBC_2.29 __pread64 F
+GLIBC_2.29 __pthread_cleanup_routine F
+GLIBC_2.29 __pthread_getspecific F
+GLIBC_2.29 __pthread_key_create F
+GLIBC_2.29 __pthread_mutex_destroy F
+GLIBC_2.29 __pthread_mutex_init F
+GLIBC_2.29 __pthread_mutex_lock F
+GLIBC_2.29 __pthread_mutex_trylock F
+GLIBC_2.29 __pthread_mutex_unlock F
+GLIBC_2.29 __pthread_mutexattr_destroy F
+GLIBC_2.29 __pthread_mutexattr_init F
+GLIBC_2.29 __pthread_mutexattr_settype F
+GLIBC_2.29 __pthread_once F
+GLIBC_2.29 __pthread_register_cancel F
+GLIBC_2.29 __pthread_register_cancel_defer F
+GLIBC_2.29 __pthread_rwlock_destroy F
+GLIBC_2.29 __pthread_rwlock_init F
+GLIBC_2.29 __pthread_rwlock_rdlock F
+GLIBC_2.29 __pthread_rwlock_tryrdlock F
+GLIBC_2.29 __pthread_rwlock_trywrlock F
+GLIBC_2.29 __pthread_rwlock_unlock F
+GLIBC_2.29 __pthread_rwlock_wrlock F
+GLIBC_2.29 __pthread_setspecific F
+GLIBC_2.29 __pthread_unregister_cancel F
+GLIBC_2.29 __pthread_unregister_cancel_restore F
+GLIBC_2.29 __pthread_unwind_next F
+GLIBC_2.29 __pwrite64 F
+GLIBC_2.29 __read F
+GLIBC_2.29 __res_state F
+GLIBC_2.29 __send F
+GLIBC_2.29 __sigaction F
+GLIBC_2.29 __wait F
+GLIBC_2.29 __write F
+GLIBC_2.29 _pthread_cleanup_pop F
+GLIBC_2.29 _pthread_cleanup_pop_restore F
+GLIBC_2.29 _pthread_cleanup_push F
+GLIBC_2.29 _pthread_cleanup_push_defer F
+GLIBC_2.29 accept F
+GLIBC_2.29 call_once F
+GLIBC_2.29 close F
+GLIBC_2.29 cnd_broadcast F
+GLIBC_2.29 cnd_destroy F
+GLIBC_2.29 cnd_init F
+GLIBC_2.29 cnd_signal F
+GLIBC_2.29 cnd_timedwait F
+GLIBC_2.29 cnd_wait F
+GLIBC_2.29 connect F
+GLIBC_2.29 flockfile F
+GLIBC_2.29 fsync F
+GLIBC_2.29 ftrylockfile F
+GLIBC_2.29 funlockfile F
+GLIBC_2.29 lseek F
+GLIBC_2.29 lseek64 F
+GLIBC_2.29 msync F
+GLIBC_2.29 mtx_destroy F
+GLIBC_2.29 mtx_init F
+GLIBC_2.29 mtx_lock F
+GLIBC_2.29 mtx_timedlock F
+GLIBC_2.29 mtx_trylock F
+GLIBC_2.29 mtx_unlock F
+GLIBC_2.29 nanosleep F
+GLIBC_2.29 open F
+GLIBC_2.29 open64 F
+GLIBC_2.29 pause F
+GLIBC_2.29 pread F
+GLIBC_2.29 pread64 F
+GLIBC_2.29 pthread_attr_destroy F
+GLIBC_2.29 pthread_attr_getaffinity_np F
+GLIBC_2.29 pthread_attr_getdetachstate F
+GLIBC_2.29 pthread_attr_getguardsize F
+GLIBC_2.29 pthread_attr_getinheritsched F
+GLIBC_2.29 pthread_attr_getschedparam F
+GLIBC_2.29 pthread_attr_getschedpolicy F
+GLIBC_2.29 pthread_attr_getscope F
+GLIBC_2.29 pthread_attr_getstack F
+GLIBC_2.29 pthread_attr_getstackaddr F
+GLIBC_2.29 pthread_attr_getstacksize F
+GLIBC_2.29 pthread_attr_init F
+GLIBC_2.29 pthread_attr_setaffinity_np F
+GLIBC_2.29 pthread_attr_setdetachstate F
+GLIBC_2.29 pthread_attr_setguardsize F
+GLIBC_2.29 pthread_attr_setinheritsched F
+GLIBC_2.29 pthread_attr_setschedparam F
+GLIBC_2.29 pthread_attr_setschedpolicy F
+GLIBC_2.29 pthread_attr_setscope F
+GLIBC_2.29 pthread_attr_setstack F
+GLIBC_2.29 pthread_attr_setstackaddr F
+GLIBC_2.29 pthread_attr_setstacksize F
+GLIBC_2.29 pthread_barrier_destroy F
+GLIBC_2.29 pthread_barrier_init F
+GLIBC_2.29 pthread_barrier_wait F
+GLIBC_2.29 pthread_barrierattr_destroy F
+GLIBC_2.29 pthread_barrierattr_getpshared F
+GLIBC_2.29 pthread_barrierattr_init F
+GLIBC_2.29 pthread_barrierattr_setpshared F
+GLIBC_2.29 pthread_cancel F
+GLIBC_2.29 pthread_cond_broadcast F
+GLIBC_2.29 pthread_cond_destroy F
+GLIBC_2.29 pthread_cond_init F
+GLIBC_2.29 pthread_cond_signal F
+GLIBC_2.29 pthread_cond_timedwait F
+GLIBC_2.29 pthread_cond_wait F
+GLIBC_2.29 pthread_condattr_destroy F
+GLIBC_2.29 pthread_condattr_getclock F
+GLIBC_2.29 pthread_condattr_getpshared F
+GLIBC_2.29 pthread_condattr_init F
+GLIBC_2.29 pthread_condattr_setclock F
+GLIBC_2.29 pthread_condattr_setpshared F
+GLIBC_2.29 pthread_create F
+GLIBC_2.29 pthread_detach F
+GLIBC_2.29 pthread_equal F
+GLIBC_2.29 pthread_exit F
+GLIBC_2.29 pthread_getaffinity_np F
+GLIBC_2.29 pthread_getattr_default_np F
+GLIBC_2.29 pthread_getattr_np F
+GLIBC_2.29 pthread_getconcurrency F
+GLIBC_2.29 pthread_getcpuclockid F
+GLIBC_2.29 pthread_getname_np F
+GLIBC_2.29 pthread_getschedparam F
+GLIBC_2.29 pthread_getspecific F
+GLIBC_2.29 pthread_join F
+GLIBC_2.29 pthread_key_create F
+GLIBC_2.29 pthread_key_delete F
+GLIBC_2.29 pthread_kill F
+GLIBC_2.29 pthread_kill_other_threads_np F
+GLIBC_2.29 pthread_mutex_consistent F
+GLIBC_2.29 pthread_mutex_consistent_np F
+GLIBC_2.29 pthread_mutex_destroy F
+GLIBC_2.29 pthread_mutex_getprioceiling F
+GLIBC_2.29 pthread_mutex_init F
+GLIBC_2.29 pthread_mutex_lock F
+GLIBC_2.29 pthread_mutex_setprioceiling F
+GLIBC_2.29 pthread_mutex_timedlock F
+GLIBC_2.29 pthread_mutex_trylock F
+GLIBC_2.29 pthread_mutex_unlock F
+GLIBC_2.29 pthread_mutexattr_destroy F
+GLIBC_2.29 pthread_mutexattr_getkind_np F
+GLIBC_2.29 pthread_mutexattr_getprioceiling F
+GLIBC_2.29 pthread_mutexattr_getprotocol F
+GLIBC_2.29 pthread_mutexattr_getpshared F
+GLIBC_2.29 pthread_mutexattr_getrobust F
+GLIBC_2.29 pthread_mutexattr_getrobust_np F
+GLIBC_2.29 pthread_mutexattr_gettype F
+GLIBC_2.29 pthread_mutexattr_init F
+GLIBC_2.29 pthread_mutexattr_setkind_np F
+GLIBC_2.29 pthread_mutexattr_setprioceiling F
+GLIBC_2.29 pthread_mutexattr_setprotocol F
+GLIBC_2.29 pthread_mutexattr_setpshared F
+GLIBC_2.29 pthread_mutexattr_setrobust F
+GLIBC_2.29 pthread_mutexattr_setrobust_np F
+GLIBC_2.29 pthread_mutexattr_settype F
+GLIBC_2.29 pthread_once F
+GLIBC_2.29 pthread_rwlock_destroy F
+GLIBC_2.29 pthread_rwlock_init F
+GLIBC_2.29 pthread_rwlock_rdlock F
+GLIBC_2.29 pthread_rwlock_timedrdlock F
+GLIBC_2.29 pthread_rwlock_timedwrlock F
+GLIBC_2.29 pthread_rwlock_tryrdlock F
+GLIBC_2.29 pthread_rwlock_trywrlock F
+GLIBC_2.29 pthread_rwlock_unlock F
+GLIBC_2.29 pthread_rwlock_wrlock F
+GLIBC_2.29 pthread_rwlockattr_destroy F
+GLIBC_2.29 pthread_rwlockattr_getkind_np F
+GLIBC_2.29 pthread_rwlockattr_getpshared F
+GLIBC_2.29 pthread_rwlockattr_init F
+GLIBC_2.29 pthread_rwlockattr_setkind_np F
+GLIBC_2.29 pthread_rwlockattr_setpshared F
+GLIBC_2.29 pthread_setaffinity_np F
+GLIBC_2.29 pthread_setattr_default_np F
+GLIBC_2.29 pthread_setcancelstate F
+GLIBC_2.29 pthread_setcanceltype F
+GLIBC_2.29 pthread_setconcurrency F
+GLIBC_2.29 pthread_setname_np F
+GLIBC_2.29 pthread_setschedparam F
+GLIBC_2.29 pthread_setschedprio F
+GLIBC_2.29 pthread_setspecific F
+GLIBC_2.29 pthread_sigmask F
+GLIBC_2.29 pthread_sigqueue F
+GLIBC_2.29 pthread_spin_destroy F
+GLIBC_2.29 pthread_spin_init F
+GLIBC_2.29 pthread_spin_lock F
+GLIBC_2.29 pthread_spin_trylock F
+GLIBC_2.29 pthread_spin_unlock F
+GLIBC_2.29 pthread_testcancel F
+GLIBC_2.29 pthread_timedjoin_np F
+GLIBC_2.29 pthread_tryjoin_np F
+GLIBC_2.29 pthread_yield F
+GLIBC_2.29 pwrite F
+GLIBC_2.29 pwrite64 F
+GLIBC_2.29 raise F
+GLIBC_2.29 read F
+GLIBC_2.29 recv F
+GLIBC_2.29 recvfrom F
+GLIBC_2.29 recvmsg F
+GLIBC_2.29 sem_close F
+GLIBC_2.29 sem_destroy F
+GLIBC_2.29 sem_getvalue F
+GLIBC_2.29 sem_init F
+GLIBC_2.29 sem_open F
+GLIBC_2.29 sem_post F
+GLIBC_2.29 sem_timedwait F
+GLIBC_2.29 sem_trywait F
+GLIBC_2.29 sem_unlink F
+GLIBC_2.29 sem_wait F
+GLIBC_2.29 send F
+GLIBC_2.29 sendmsg F
+GLIBC_2.29 sendto F
+GLIBC_2.29 sigaction F
+GLIBC_2.29 sigwait F
+GLIBC_2.29 tcdrain F
+GLIBC_2.29 thrd_create F
+GLIBC_2.29 thrd_detach F
+GLIBC_2.29 thrd_exit F
+GLIBC_2.29 thrd_join F
+GLIBC_2.29 tss_create F
+GLIBC_2.29 tss_delete F
+GLIBC_2.29 tss_get F
+GLIBC_2.29 tss_set F
+GLIBC_2.29 wait F
+GLIBC_2.29 waitpid F
+GLIBC_2.29 write F
diff --git a/sysdeps/unix/sysv/linux/csky/libresolv.abilist b/sysdeps/unix/sysv/linux/csky/libresolv.abilist
new file mode 100644
index 0000000..2830a7e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/libresolv.abilist
@@ -0,0 +1,79 @@
+GLIBC_2.29 __b64_ntop F
+GLIBC_2.29 __b64_pton F
+GLIBC_2.29 __dn_comp F
+GLIBC_2.29 __dn_count_labels F
+GLIBC_2.29 __dn_expand F
+GLIBC_2.29 __dn_skipname F
+GLIBC_2.29 __fp_nquery F
+GLIBC_2.29 __fp_query F
+GLIBC_2.29 __fp_resstat F
+GLIBC_2.29 __hostalias F
+GLIBC_2.29 __loc_aton F
+GLIBC_2.29 __loc_ntoa F
+GLIBC_2.29 __p_cdname F
+GLIBC_2.29 __p_cdnname F
+GLIBC_2.29 __p_class F
+GLIBC_2.29 __p_class_syms D 0x54
+GLIBC_2.29 __p_fqname F
+GLIBC_2.29 __p_fqnname F
+GLIBC_2.29 __p_option F
+GLIBC_2.29 __p_query F
+GLIBC_2.29 __p_rcode F
+GLIBC_2.29 __p_time F
+GLIBC_2.29 __p_type F
+GLIBC_2.29 __p_type_syms D 0x228
+GLIBC_2.29 __putlong F
+GLIBC_2.29 __putshort F
+GLIBC_2.29 __res_close F
+GLIBC_2.29 __res_dnok F
+GLIBC_2.29 __res_hnok F
+GLIBC_2.29 __res_hostalias F
+GLIBC_2.29 __res_isourserver F
+GLIBC_2.29 __res_mailok F
+GLIBC_2.29 __res_mkquery F
+GLIBC_2.29 __res_nameinquery F
+GLIBC_2.29 __res_nmkquery F
+GLIBC_2.29 __res_nquery F
+GLIBC_2.29 __res_nquerydomain F
+GLIBC_2.29 __res_nsearch F
+GLIBC_2.29 __res_nsend F
+GLIBC_2.29 __res_ownok F
+GLIBC_2.29 __res_queriesmatch F
+GLIBC_2.29 __res_query F
+GLIBC_2.29 __res_querydomain F
+GLIBC_2.29 __res_search F
+GLIBC_2.29 __res_send F
+GLIBC_2.29 __sym_ntop F
+GLIBC_2.29 __sym_ntos F
+GLIBC_2.29 __sym_ston F
+GLIBC_2.29 _getlong F
+GLIBC_2.29 _getshort F
+GLIBC_2.29 inet_net_ntop F
+GLIBC_2.29 inet_net_pton F
+GLIBC_2.29 inet_neta F
+GLIBC_2.29 ns_datetosecs F
+GLIBC_2.29 ns_format_ttl F
+GLIBC_2.29 ns_get16 F
+GLIBC_2.29 ns_get32 F
+GLIBC_2.29 ns_initparse F
+GLIBC_2.29 ns_makecanon F
+GLIBC_2.29 ns_msg_getflag F
+GLIBC_2.29 ns_name_compress F
+GLIBC_2.29 ns_name_ntol F
+GLIBC_2.29 ns_name_ntop F
+GLIBC_2.29 ns_name_pack F
+GLIBC_2.29 ns_name_pton F
+GLIBC_2.29 ns_name_rollback F
+GLIBC_2.29 ns_name_skip F
+GLIBC_2.29 ns_name_uncompress F
+GLIBC_2.29 ns_name_unpack F
+GLIBC_2.29 ns_parse_ttl F
+GLIBC_2.29 ns_parserr F
+GLIBC_2.29 ns_put16 F
+GLIBC_2.29 ns_put32 F
+GLIBC_2.29 ns_samedomain F
+GLIBC_2.29 ns_samename F
+GLIBC_2.29 ns_skiprr F
+GLIBC_2.29 ns_sprintrr F
+GLIBC_2.29 ns_sprintrrf F
+GLIBC_2.29 ns_subdomain F
diff --git a/sysdeps/unix/sysv/linux/csky/librt.abilist b/sysdeps/unix/sysv/linux/csky/librt.abilist
new file mode 100644
index 0000000..c6690ef
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/librt.abilist
@@ -0,0 +1,35 @@
+GLIBC_2.29 __mq_open_2 F
+GLIBC_2.29 aio_cancel F
+GLIBC_2.29 aio_cancel64 F
+GLIBC_2.29 aio_error F
+GLIBC_2.29 aio_error64 F
+GLIBC_2.29 aio_fsync F
+GLIBC_2.29 aio_fsync64 F
+GLIBC_2.29 aio_init F
+GLIBC_2.29 aio_read F
+GLIBC_2.29 aio_read64 F
+GLIBC_2.29 aio_return F
+GLIBC_2.29 aio_return64 F
+GLIBC_2.29 aio_suspend F
+GLIBC_2.29 aio_suspend64 F
+GLIBC_2.29 aio_write F
+GLIBC_2.29 aio_write64 F
+GLIBC_2.29 lio_listio F
+GLIBC_2.29 lio_listio64 F
+GLIBC_2.29 mq_close F
+GLIBC_2.29 mq_getattr F
+GLIBC_2.29 mq_notify F
+GLIBC_2.29 mq_open F
+GLIBC_2.29 mq_receive F
+GLIBC_2.29 mq_send F
+GLIBC_2.29 mq_setattr F
+GLIBC_2.29 mq_timedreceive F
+GLIBC_2.29 mq_timedsend F
+GLIBC_2.29 mq_unlink F
+GLIBC_2.29 shm_open F
+GLIBC_2.29 shm_unlink F
+GLIBC_2.29 timer_create F
+GLIBC_2.29 timer_delete F
+GLIBC_2.29 timer_getoverrun F
+GLIBC_2.29 timer_gettime F
+GLIBC_2.29 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/csky/libthread_db.abilist b/sysdeps/unix/sysv/linux/csky/libthread_db.abilist
new file mode 100644
index 0000000..37e9bac
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/libthread_db.abilist
@@ -0,0 +1,40 @@
+GLIBC_2.29 td_init F
+GLIBC_2.29 td_log F
+GLIBC_2.29 td_symbol_list F
+GLIBC_2.29 td_ta_clear_event F
+GLIBC_2.29 td_ta_delete F
+GLIBC_2.29 td_ta_enable_stats F
+GLIBC_2.29 td_ta_event_addr F
+GLIBC_2.29 td_ta_event_getmsg F
+GLIBC_2.29 td_ta_get_nthreads F
+GLIBC_2.29 td_ta_get_ph F
+GLIBC_2.29 td_ta_get_stats F
+GLIBC_2.29 td_ta_map_id2thr F
+GLIBC_2.29 td_ta_map_lwp2thr F
+GLIBC_2.29 td_ta_new F
+GLIBC_2.29 td_ta_reset_stats F
+GLIBC_2.29 td_ta_set_event F
+GLIBC_2.29 td_ta_setconcurrency F
+GLIBC_2.29 td_ta_thr_iter F
+GLIBC_2.29 td_ta_tsd_iter F
+GLIBC_2.29 td_thr_clear_event F
+GLIBC_2.29 td_thr_dbresume F
+GLIBC_2.29 td_thr_dbsuspend F
+GLIBC_2.29 td_thr_event_enable F
+GLIBC_2.29 td_thr_event_getmsg F
+GLIBC_2.29 td_thr_get_info F
+GLIBC_2.29 td_thr_getfpregs F
+GLIBC_2.29 td_thr_getgregs F
+GLIBC_2.29 td_thr_getxregs F
+GLIBC_2.29 td_thr_getxregsize F
+GLIBC_2.29 td_thr_set_event F
+GLIBC_2.29 td_thr_setfpregs F
+GLIBC_2.29 td_thr_setgregs F
+GLIBC_2.29 td_thr_setprio F
+GLIBC_2.29 td_thr_setsigpending F
+GLIBC_2.29 td_thr_setxregs F
+GLIBC_2.29 td_thr_sigsetmask F
+GLIBC_2.29 td_thr_tls_get_addr F
+GLIBC_2.29 td_thr_tlsbase F
+GLIBC_2.29 td_thr_tsd F
+GLIBC_2.29 td_thr_validate F
diff --git a/sysdeps/unix/sysv/linux/csky/libutil.abilist b/sysdeps/unix/sysv/linux/csky/libutil.abilist
new file mode 100644
index 0000000..cbd1199
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/libutil.abilist
@@ -0,0 +1,6 @@
+GLIBC_2.29 forkpty F
+GLIBC_2.29 login F
+GLIBC_2.29 login_tty F
+GLIBC_2.29 logout F
+GLIBC_2.29 logwtmp F
+GLIBC_2.29 openpty F
--
2.7.4
^ permalink raw reply [flat|nested] 57+ messages in thread* Re: [PATCH v4 07/13] C-SKY: ABI Lists
2018-09-12 3:05 ` [PATCH v4 07/13] C-SKY: ABI Lists Mao Han
@ 2018-09-12 6:51 ` Andreas Schwab
2018-09-12 7:12 ` Mao Han
2018-09-12 12:35 ` Joseph Myers
0 siblings, 2 replies; 57+ messages in thread
From: Andreas Schwab @ 2018-09-12 6:51 UTC (permalink / raw)
To: Mao Han; +Cc: libc-alpha, c-sky_gcc_upstream, gnu-csky
On Sep 12 2018, Mao Han <han_mao@c-sky.com> wrote:
> * sysdeps/unix/sysv/linux/csky/libnsl.abilist: Likewise.
This is useless since you cannot link against libnsl anyway (in the
default configuration).
With http://sourceware.org/ml/libc-alpha/2018-08/msg00261.html it won't
be built any more.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 07/13] C-SKY: ABI Lists
2018-09-12 6:51 ` Andreas Schwab
@ 2018-09-12 7:12 ` Mao Han
2018-09-12 12:35 ` Joseph Myers
1 sibling, 0 replies; 57+ messages in thread
From: Mao Han @ 2018-09-12 7:12 UTC (permalink / raw)
To: Andreas Schwab; +Cc: c-sky_gcc_upstream, gnu-csky, libc-alpha
On Wed, Sep 12, 2018 at 08:51:07AM +0200, Andreas Schwab wrote:
> On Sep 12 2018, Mao Han <han_mao@c-sky.com> wrote:
>
> > * sysdeps/unix/sysv/linux/csky/libnsl.abilist: Likewise.
>
> This is useless since you cannot link against libnsl anyway (in the
> default configuration).
>
> With http://sourceware.org/ml/libc-alpha/2018-08/msg00261.html it won't
> be built any more.
>
> Andreas.
>
> --
> Andreas Schwab, SUSE Labs, schwab@suse.de
> GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
> "And now for something completely different."
OK. I will remove this file.
Han Mao
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 07/13] C-SKY: ABI Lists
2018-09-12 6:51 ` Andreas Schwab
2018-09-12 7:12 ` Mao Han
@ 2018-09-12 12:35 ` Joseph Myers
2018-09-12 13:46 ` Andreas Schwab
2018-09-13 8:23 ` Mao Han
1 sibling, 2 replies; 57+ messages in thread
From: Joseph Myers @ 2018-09-12 12:35 UTC (permalink / raw)
To: Andreas Schwab; +Cc: Mao Han, libc-alpha, c-sky_gcc_upstream, gnu-csky
On Wed, 12 Sep 2018, Andreas Schwab wrote:
> On Sep 12 2018, Mao Han <han_mao@c-sky.com> wrote:
>
> > * sysdeps/unix/sysv/linux/csky/libnsl.abilist: Likewise.
>
> This is useless since you cannot link against libnsl anyway (in the
> default configuration).
>
> With http://sourceware.org/ml/libc-alpha/2018-08/msg00261.html it won't
> be built any more.
As far as I can see that patch isn't in glibc and hasn't been pinged. A
new port needs to have clean ABI test results with the glibc version it
goes into; the point at which libnsl.abilist should be removed from the
port is the point at which such a change to prevent building libnsl goes
in (if it does go in without there having been a release with the new port
first).
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 07/13] C-SKY: ABI Lists
2018-09-12 12:35 ` Joseph Myers
@ 2018-09-12 13:46 ` Andreas Schwab
2018-09-12 15:19 ` Joseph Myers
2018-09-13 8:23 ` Mao Han
1 sibling, 1 reply; 57+ messages in thread
From: Andreas Schwab @ 2018-09-12 13:46 UTC (permalink / raw)
To: Joseph Myers; +Cc: Mao Han, libc-alpha, c-sky_gcc_upstream, gnu-csky
On Sep 12 2018, Joseph Myers <joseph@codesourcery.com> wrote:
> On Wed, 12 Sep 2018, Andreas Schwab wrote:
>
>> On Sep 12 2018, Mao Han <han_mao@c-sky.com> wrote:
>>
>> > * sysdeps/unix/sysv/linux/csky/libnsl.abilist: Likewise.
>>
>> This is useless since you cannot link against libnsl anyway (in the
>> default configuration).
>>
>> With http://sourceware.org/ml/libc-alpha/2018-08/msg00261.html it won't
>> be built any more.
>
> As far as I can see that patch isn't in glibc
You can help changing that.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 07/13] C-SKY: ABI Lists
2018-09-12 13:46 ` Andreas Schwab
@ 2018-09-12 15:19 ` Joseph Myers
0 siblings, 0 replies; 57+ messages in thread
From: Joseph Myers @ 2018-09-12 15:19 UTC (permalink / raw)
To: Andreas Schwab; +Cc: Mao Han, libc-alpha, c-sky_gcc_upstream, gnu-csky
On Wed, 12 Sep 2018, Andreas Schwab wrote:
> On Sep 12 2018, Joseph Myers <joseph@codesourcery.com> wrote:
>
> > On Wed, 12 Sep 2018, Andreas Schwab wrote:
> >
> >> On Sep 12 2018, Mao Han <han_mao@c-sky.com> wrote:
> >>
> >> > * sysdeps/unix/sysv/linux/csky/libnsl.abilist: Likewise.
> >>
> >> This is useless since you cannot link against libnsl anyway (in the
> >> default configuration).
> >>
> >> With http://sourceware.org/ml/libc-alpha/2018-08/msg00261.html it won't
> >> be built any more.
> >
> > As far as I can see that patch isn't in glibc
>
> You can help changing that.
Well, an obvious question for that patch is how it interacts with
--enable-obsolete-nsl. --enable-obsolete-nsl has four documented effects:
enabling being able to link against libnsl symbols and enabling the three
NSS modules libnss_compat, libnss_nis and libnss_nisplus. Does this patch
prevent all those effects on platforms with new ABIs? If so, the option
should preferably give an error on such platforms. But in any case, the
documentation of --enable-obsolete-nsl (install.texi and INSTALL
regeneration) needs to be clear if some or all of the semantics of that
option are unavailable on some platforms.
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 07/13] C-SKY: ABI Lists
2018-09-12 12:35 ` Joseph Myers
2018-09-12 13:46 ` Andreas Schwab
@ 2018-09-13 8:23 ` Mao Han
1 sibling, 0 replies; 57+ messages in thread
From: Mao Han @ 2018-09-13 8:23 UTC (permalink / raw)
To: Joseph Myers; +Cc: c-sky_gcc_upstream, gnu-csky, libc-alpha
On Wed, Sep 12, 2018 at 12:35:34PM +0000, Joseph Myers wrote:
> On Wed, 12 Sep 2018, Andreas Schwab wrote:
>
> > On Sep 12 2018, Mao Han <han_mao@c-sky.com> wrote:
> >
> > > * sysdeps/unix/sysv/linux/csky/libnsl.abilist: Likewise.
> >
> > This is useless since you cannot link against libnsl anyway (in the
> > default configuration).
> >
> > With http://sourceware.org/ml/libc-alpha/2018-08/msg00261.html it won't
> > be built any more.
>
> As far as I can see that patch isn't in glibc and hasn't been pinged. A
> new port needs to have clean ABI test results with the glibc version it
> goes into; the point at which libnsl.abilist should be removed from the
> port is the point at which such a change to prevent building libnsl goes
> in (if it does go in without there having been a release with the new port
> first).
>
Seems I shall keep libnsl.abilist unless this patch get in.
Thanks,
Han Mao
^ permalink raw reply [flat|nested] 57+ messages in thread
* [PATCH v4 04/13] C-SKY: NPTL support and Atomic
[not found] ` <cover.1536720821.git.han_mao@c-sky.com>
` (10 preceding siblings ...)
2018-09-12 3:05 ` [PATCH v4 07/13] C-SKY: ABI Lists Mao Han
@ 2018-09-12 3:05 ` Mao Han
2018-09-12 3:05 ` [PATCH v4 10/13] C-SKY: Build Infastructure Mao Han
12 siblings, 0 replies; 57+ messages in thread
From: Mao Han @ 2018-09-12 3:05 UTC (permalink / raw)
To: libc-alpha; +Cc: Mao Han, c-sky_gcc_upstream, gnu-csky
This patch implements various atomic and pthread routines on C-SKY.
* sysdeps/csky/atomic-machine.h: New file.
* sysdeps/csky/nptl/bits/pthreadtypes-arch.h: Likewise.
* sysdeps/csky/nptl/bits/semaphore.h: Likewise.
* sysdeps/csky/nptl/pthread-offsets.h: Likewise.
* sysdeps/csky/nptl/pthreaddef.h: Likewise.
---
sysdeps/csky/atomic-machine.h | 77 ++++++++++++++++++++++++++++++
sysdeps/csky/nptl/bits/pthreadtypes-arch.h | 70 +++++++++++++++++++++++++++
sysdeps/csky/nptl/bits/semaphore.h | 35 ++++++++++++++
sysdeps/csky/nptl/pthread-offsets.h | 5 ++
sysdeps/csky/nptl/pthreaddef.h | 32 +++++++++++++
5 files changed, 219 insertions(+)
create mode 100644 sysdeps/csky/atomic-machine.h
create mode 100644 sysdeps/csky/nptl/bits/pthreadtypes-arch.h
create mode 100644 sysdeps/csky/nptl/bits/semaphore.h
create mode 100644 sysdeps/csky/nptl/pthread-offsets.h
create mode 100644 sysdeps/csky/nptl/pthreaddef.h
diff --git a/sysdeps/csky/atomic-machine.h b/sysdeps/csky/atomic-machine.h
new file mode 100644
index 0000000..0205f83
--- /dev/null
+++ b/sysdeps/csky/atomic-machine.h
@@ -0,0 +1,77 @@
+/* Atomic operations. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef __CSKY_ATOMIC_H_
+#define __CSKY_ATOMIC_H_
+
+#include <stdint.h>
+
+typedef int32_t atomic32_t;
+typedef uint32_t uatomic32_t;
+
+typedef intptr_t atomicptr_t;
+typedef uintptr_t uatomicptr_t;
+typedef intmax_t atomic_max_t;
+typedef uintmax_t uatomic_max_t;
+
+#define __HAVE_64B_ATOMICS 0
+#define USE_ATOMIC_COMPILER_BUILTINS 1
+#define ATOMIC_EXCHANGE_USES_CAS 1
+
+#define __arch_compare_and_exchange_bool_8_int(mem, newval, oldval, model) \
+ (abort (), 0)
+
+#define __arch_compare_and_exchange_bool_16_int(mem, newval, oldval, model) \
+ (abort (), 0)
+
+#define __arch_compare_and_exchange_bool_32_int(mem, newval, oldval, model) \
+ ({ \
+ typeof (*mem) __oldval = (oldval); \
+ !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
+ model, __ATOMIC_RELAXED); \
+ })
+
+#define __arch_compare_and_exchange_bool_64_int(mem, newval, oldval, model) \
+ (abort (), 0)
+
+#define __arch_compare_and_exchange_val_8_int(mem, newval, oldval, model) \
+ (abort (), (__typeof (*mem)) 0)
+
+#define __arch_compare_and_exchange_val_16_int(mem, newval, oldval, model) \
+ (abort (), (__typeof (*mem)) 0)
+
+#define __arch_compare_and_exchange_val_32_int(mem, newval, oldval, model) \
+ ({ \
+ typeof (*mem) __oldval = (oldval); \
+ __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
+ model, __ATOMIC_RELAXED); \
+ __oldval; \
+ })
+
+#define __arch_compare_and_exchange_val_64_int(mem, newval, oldval, model) \
+ (abort (), (__typeof (*mem)) 0)
+
+#define atomic_compare_and_exchange_bool_acq(mem, new, old) \
+ __atomic_bool_bysize (__arch_compare_and_exchange_bool, int, \
+ mem, new, old, __ATOMIC_ACQUIRE)
+
+#define atomic_compare_and_exchange_val_acq(mem, new, old) \
+ __atomic_val_bysize (__arch_compare_and_exchange_val, int, \
+ mem, new, old, __ATOMIC_ACQUIRE)
+
+#endif /* atomic-machine.h */
diff --git a/sysdeps/csky/nptl/bits/pthreadtypes-arch.h b/sysdeps/csky/nptl/bits/pthreadtypes-arch.h
new file mode 100644
index 0000000..fa04db0
--- /dev/null
+++ b/sysdeps/csky/nptl/bits/pthreadtypes-arch.h
@@ -0,0 +1,70 @@
+/* Machine-specific pthread type layouts. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _BITS_PTHREADTYPES_ARCH_H
+#define _BITS_PTHREADTYPES_ARCH_H 1
+
+#include <endian.h>
+
+#define __SIZEOF_PTHREAD_ATTR_T 36
+#define __SIZEOF_PTHREAD_MUTEX_T 24
+#define __SIZEOF_PTHREAD_MUTEXATTR_T 4
+#define __SIZEOF_PTHREAD_COND_T 48
+#define __SIZEOF_PTHREAD_CONDATTR_T 4
+#define __SIZEOF_PTHREAD_RWLOCK_T 32
+#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
+#define __SIZEOF_PTHREAD_BARRIER_T 20
+#define __SIZEOF_PTHREAD_BARRIERATTR_T 4
+
+/* Data structure for mutex handling. */
+#define __PTHREAD_COMPAT_PADDING_MID
+#define __PTHREAD_COMPAT_PADDING_END
+#define __PTHREAD_MUTEX_LOCK_ELISION 0
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND 1
+#define __PTHREAD_MUTEX_USE_UNION 1
+
+#define __LOCK_ALIGNMENT
+#define __ONCE_ALIGNMENT
+
+/* Paddings in this structure are not strictly necessary on C-SKY.
+ They are left for extensibility as most other architecture do so. */
+struct __pthread_rwlock_arch_t
+{
+ unsigned int __readers;
+ unsigned int __writers;
+ unsigned int __wrphase_futex;
+ unsigned int __writers_futex;
+ unsigned int __pad3;
+ unsigned int __pad4;
+#if __BYTE_ORDER == __BIG_ENDIAN
+ unsigned char __pad1;
+ unsigned char __pad2;
+ unsigned char __shared;
+ unsigned char __flags;
+#else
+ unsigned char __flags;
+ unsigned char __shared;
+ unsigned char __pad1;
+ unsigned char __pad2;
+#endif
+ int __cur_writer;
+};
+
+#define __PTHREAD_RWLOCK_ELISION_EXTRA 0
+
+#endif
diff --git a/sysdeps/csky/nptl/bits/semaphore.h b/sysdeps/csky/nptl/bits/semaphore.h
new file mode 100644
index 0000000..0b13f59
--- /dev/null
+++ b/sysdeps/csky/nptl/bits/semaphore.h
@@ -0,0 +1,35 @@
+/* Machine-specific POSIX semaphore type layouts. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SEMAPHORE_H
+# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
+#endif
+
+
+#define __SIZEOF_SEM_T 16
+
+
+/* Value returned if `sem_open' failed. */
+#define SEM_FAILED ((sem_t *) 0)
+
+
+typedef union
+{
+ char __size[__SIZEOF_SEM_T];
+ long int __align;
+} sem_t;
diff --git a/sysdeps/csky/nptl/pthread-offsets.h b/sysdeps/csky/nptl/pthread-offsets.h
new file mode 100644
index 0000000..9617354
--- /dev/null
+++ b/sysdeps/csky/nptl/pthread-offsets.h
@@ -0,0 +1,5 @@
+#define __PTHREAD_MUTEX_NUSERS_OFFSET 16
+#define __PTHREAD_MUTEX_KIND_OFFSET 12
+#define __PTHREAD_MUTEX_SPINS_OFFSET 20
+#define __PTHREAD_MUTEX_ELISION_OFFSET 22
+#define __PTHREAD_MUTEX_LIST_OFFSET 20
diff --git a/sysdeps/csky/nptl/pthreaddef.h b/sysdeps/csky/nptl/pthreaddef.h
new file mode 100644
index 0000000..f69fbc0
--- /dev/null
+++ b/sysdeps/csky/nptl/pthreaddef.h
@@ -0,0 +1,32 @@
+/* pthread machine parameter definitions. C-SKY version.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Default stack size. */
+#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024)
+
+/* Required stack pointer alignment at beginning. */
+#define STACK_ALIGN 8
+
+/* Minimal stack size after allocating thread descriptor and guard size. */
+#define MINIMAL_REST_STACK 2048
+
+/* Alignment requirement for TCB. */
+#define TCB_ALIGNMENT 8
+
+/* Location of current stack frame. */
+#define CURRENT_STACK_FRAME __builtin_frame_address (0)
--
2.7.4
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v4 10/13] C-SKY: Build Infastructure
[not found] ` <cover.1536720821.git.han_mao@c-sky.com>
` (11 preceding siblings ...)
2018-09-12 3:05 ` [PATCH v4 04/13] C-SKY: NPTL support and Atomic Mao Han
@ 2018-09-12 3:05 ` Mao Han
2018-09-17 21:52 ` Joseph Myers
12 siblings, 1 reply; 57+ messages in thread
From: Mao Han @ 2018-09-12 3:05 UTC (permalink / raw)
To: libc-alpha; +Cc: Mao Han, c-sky_gcc_upstream, gnu-csky
This patch contains all the implile, makefile and configure needed in
C-SKY porting.
* sysdeps/csky/Implies: New file.
* sysdeps/csky/Makefile: Likewise.
* sysdeps/csky/configure: Likewise.
* sysdeps/csky/configure.ac: Likewise.
* sysdeps/csky/nofpu/Implies: Likewise.
* sysdeps/csky/nptl/Makefile: Likewise.
* sysdeps/csky/preconfigure: Likewise.
* sysdeps/unix/sysv/linux/csky/Implies: Likewise.
* sysdeps/unix/sysv/linux/csky/Makefile: Likewise.
* sysdeps/unix/sysv/linux/csky/configure: Likewise.
* sysdeps/unix/sysv/linux/csky/configure.ac: Likewise.
---
sysdeps/csky/Implies | 4 ++++
sysdeps/csky/Makefile | 13 ++++++++++++
sysdeps/csky/configure | 4 ++++
sysdeps/csky/configure.ac | 4 ++++
sysdeps/csky/nptl/Makefile | 20 +++++++++++++++++++
sysdeps/csky/preconfigure | 33 +++++++++++++++++++++++++++++++
sysdeps/unix/sysv/linux/csky/Implies | 3 +++
sysdeps/unix/sysv/linux/csky/Makefile | 8 ++++++++
sysdeps/unix/sysv/linux/csky/configure | 4 ++++
sysdeps/unix/sysv/linux/csky/configure.ac | 5 +++++
10 files changed, 98 insertions(+)
create mode 100644 sysdeps/csky/Implies
create mode 100644 sysdeps/csky/Makefile
create mode 100644 sysdeps/csky/configure
create mode 100644 sysdeps/csky/configure.ac
create mode 100644 sysdeps/csky/nptl/Makefile
create mode 100644 sysdeps/csky/preconfigure
create mode 100644 sysdeps/unix/sysv/linux/csky/Implies
create mode 100644 sysdeps/unix/sysv/linux/csky/Makefile
create mode 100644 sysdeps/unix/sysv/linux/csky/configure
create mode 100644 sysdeps/unix/sysv/linux/csky/configure.ac
diff --git a/sysdeps/csky/Implies b/sysdeps/csky/Implies
new file mode 100644
index 0000000..f8c3a75
--- /dev/null
+++ b/sysdeps/csky/Implies
@@ -0,0 +1,4 @@
+wordsize-32
+# C-SKY uses IEEE 754 floating point.
+ieee754/flt-32
+ieee754/dbl-64
diff --git a/sysdeps/csky/Makefile b/sysdeps/csky/Makefile
new file mode 100644
index 0000000..4fa84bc
--- /dev/null
+++ b/sysdeps/csky/Makefile
@@ -0,0 +1,13 @@
+ifeq ($(subdir),csu)
+gen-as-const-headers += tcb-offsets.sym
+endif
+
+ifeq ($(subdir),debug)
+CFLAGS-backtrace.c += -funwind-tables
+endif
+
+ASFLAGS-.os += $(pic-ccflag)
+
+ifeq ($(subdir),gmon)
+sysdep_routines += csky-mcount
+endif
diff --git a/sysdeps/csky/configure b/sysdeps/csky/configure
new file mode 100644
index 0000000..19acb08
--- /dev/null
+++ b/sysdeps/csky/configure
@@ -0,0 +1,4 @@
+# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
+ # Local configure fragment for sysdeps/csky.
+
+$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
diff --git a/sysdeps/csky/configure.ac b/sysdeps/csky/configure.ac
new file mode 100644
index 0000000..5656b66
--- /dev/null
+++ b/sysdeps/csky/configure.ac
@@ -0,0 +1,4 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/csky.
+
+AC_DEFINE(PI_STATIC_AND_HIDDEN)
diff --git a/sysdeps/csky/nptl/Makefile b/sysdeps/csky/nptl/Makefile
new file mode 100644
index 0000000..a80a979
--- /dev/null
+++ b/sysdeps/csky/nptl/Makefile
@@ -0,0 +1,20 @@
+# Copyright (C) 2018 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+#
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library. If not, see
+# <http://www.gnu.org/licenses/>.
+
+ifeq ($(subdir),csu)
+gen-as-const-headers += tcb-offsets.sym
+endif
diff --git a/sysdeps/csky/preconfigure b/sysdeps/csky/preconfigure
new file mode 100644
index 0000000..4a5864f
--- /dev/null
+++ b/sysdeps/csky/preconfigure
@@ -0,0 +1,33 @@
+case "$machine" in
+csky*)
+ abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |
+ sed -n 's/^#define __CSKYABI__ \(.*\)/\1/p'`
+ float_abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |
+ sed -n 's/^#define __CSKY_HARD_FLOAT__ \(.*\)/\1/p'`
+
+ case "$abi" in
+ 2)
+ machine=abiv2
+ ;;
+ *)
+ echo "Unknown abi" >&2
+ exit 1
+ ;;
+ esac
+
+ case "$float_abi" in
+ 1)
+ with_fp_cond=1
+ ;;
+ *)
+ with_fp_cond=0
+ ;;
+ esac
+
+ base_machine=csky
+ machine=csky/$machine
+
+ $as_echo "#define CSKYABI $abi" >>confdefs.h
+ $as_echo "#define CSKY_HARD_FLOAT $float_abi" >>confdefs.h
+ ;;
+esac
diff --git a/sysdeps/unix/sysv/linux/csky/Implies b/sysdeps/unix/sysv/linux/csky/Implies
new file mode 100644
index 0000000..f37776c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/Implies
@@ -0,0 +1,3 @@
+unix/sysv/linux/generic/wordsize-32
+unix/sysv/linux/generic
+csky/nptl
diff --git a/sysdeps/unix/sysv/linux/csky/Makefile b/sysdeps/unix/sysv/linux/csky/Makefile
new file mode 100644
index 0000000..4462bc0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/Makefile
@@ -0,0 +1,8 @@
+ifeq ($(subdir),misc)
+sysdep_routines += cacheflush
+sysdep_headers += sys/cachectl.h
+endif
+
+ifeq ($(subdir),stdlib)
+gen-as-const-headers += ucontext_i.sym
+endif
diff --git a/sysdeps/unix/sysv/linux/csky/configure b/sysdeps/unix/sysv/linux/csky/configure
new file mode 100644
index 0000000..a8043f9
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/configure
@@ -0,0 +1,4 @@
+# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
+
+arch_minimum_kernel=4.19.0
+ldd_rewrite_script=sysdeps/unix/sysv/linux/ldd-rewrite.sed
diff --git a/sysdeps/unix/sysv/linux/csky/configure.ac b/sysdeps/unix/sysv/linux/csky/configure.ac
new file mode 100644
index 0000000..d61dbb3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/configure.ac
@@ -0,0 +1,5 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/unix/sysv/linux/csky
+
+arch_minimum_kernel=4.19.0
+ldd_rewrite_script=sysdeps/unix/sysv/linux/ldd-rewrite.sed
--
2.7.4
^ permalink raw reply [flat|nested] 57+ messages in thread* Re: [PATCH v4 10/13] C-SKY: Build Infastructure
2018-09-12 3:05 ` [PATCH v4 10/13] C-SKY: Build Infastructure Mao Han
@ 2018-09-17 21:52 ` Joseph Myers
2018-09-18 6:02 ` Mao Han
0 siblings, 1 reply; 57+ messages in thread
From: Joseph Myers @ 2018-09-17 21:52 UTC (permalink / raw)
To: Mao Han; +Cc: libc-alpha, c-sky_gcc_upstream, gnu-csky
On Wed, 12 Sep 2018, Mao Han wrote:
> +ifeq ($(subdir),debug)
> +CFLAGS-backtrace.c += -funwind-tables
> +endif
This is in the generic debug/Makefile, so you shouldn't need it here.
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v4 10/13] C-SKY: Build Infastructure
2018-09-17 21:52 ` Joseph Myers
@ 2018-09-18 6:02 ` Mao Han
0 siblings, 0 replies; 57+ messages in thread
From: Mao Han @ 2018-09-18 6:02 UTC (permalink / raw)
To: Joseph Myers; +Cc: c-sky_gcc_upstream, gnu-csky, libc-alpha
On Mon, Sep 17, 2018 at 09:52:48PM +0000, Joseph Myers wrote:
> On Wed, 12 Sep 2018, Mao Han wrote:
>
> > +ifeq ($(subdir),debug)
> > +CFLAGS-backtrace.c += -funwind-tables
> > +endif
>
> This is in the generic debug/Makefile, so you shouldn't need it here.
OK. I'll remove it.
Thanks
Han Mao
^ permalink raw reply [flat|nested] 57+ messages in thread