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* [glibc/azanella/bz12683] hppa: Fix Race conditions in pthread cancellation [BZ#12683]
@ 2023-04-07 17:08 Adhemerval Zanella
0 siblings, 0 replies; 2+ messages in thread
From: Adhemerval Zanella @ 2023-04-07 17:08 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=870dd73bac9ee6fbc9442ee60f2ef2f163651efb
commit 870dd73bac9ee6fbc9442ee60f2ef2f163651efb
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Apr 3 11:26:28 2023 -0300
hppa: Fix Race conditions in pthread cancellation [BZ#12683]
By adding the required syscall_cancel.S.
Checked on hppa-linux-gnu.
Diff:
---
sysdeps/unix/sysv/linux/hppa/syscall_cancel.S | 81 +++++++++++++++++++++++++++
1 file changed, 81 insertions(+)
diff --git a/sysdeps/unix/sysv/linux/hppa/syscall_cancel.S b/sysdeps/unix/sysv/linux/hppa/syscall_cancel.S
new file mode 100644
index 0000000000..b9c19747ea
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/hppa/syscall_cancel.S
@@ -0,0 +1,81 @@
+/* Cancellable syscall wrapper. Linux/hppa version.
+ Copyright (C) 2023 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 <descr-const.h>
+
+/* long int __syscall_cancel_arch (int *cancelhandling,
+ long int nr,
+ long int arg1,
+ long int arg2,
+ long int arg3,
+ long int arg4,
+ long int arg5,
+ long int arg6) */
+
+ .text
+ENTRY(__syscall_cancel_arch)
+ stw %r2,-20(%r30)
+ ldo 128(%r30),%r30
+ cfi_def_cfa_offset (-128)
+ cfi_offset (2, -20)
+ ldw -180(%r30),%r28
+ copy %r26,%r20
+ stw %r28,-108(%r30)
+ ldw -184(%r30),%r28
+ copy %r24,%r26
+ stw %r28,-112(%r30)
+ ldw -188(%r30),%r28
+ stw %r28,-116(%r30)
+ ldw -192(%r30),%r28
+ stw %r4,-104(%r30)
+ stw %r28,-120(%r30)
+ copy %r25,%r28
+ copy %r23,%r25
+#ifdef __PIC__
+ stw %r19,-32(%r30)
+#endif
+ cfi_offset (4, 24)
+
+ .global __syscall_cancel_arch_start
+__syscall_cancel_arch_start:
+ ldw 0(%r20),%r20
+ bb,< %r20,31-TCB_CANCELED_BIT,1f
+ ldw -120(%r30),%r21
+ ldw -116(%r30),%r22
+ ldw -112(%r30),%r23
+ ldw -108(%r30),%r24
+ copy %r19, %r4
+ ble 0x100(%sr2, %r0)
+
+ .global __syscall_cancel_arch_end
+__syscall_cancel_arch_end:
+
+ copy %r28,%r20
+ copy %r4,%r19
+
+ ldw -148(%r30),%r2
+ ldw -104(%r30),%r4
+ bv %r0(%r2)
+ ldo -128(%r30),%r30
+1:
+ bl __syscall_do_cancel,%r2
+ nop
+ nop
+
+END(__syscall_cancel_arch)
^ permalink raw reply [flat|nested] 2+ messages in thread
* [glibc/azanella/bz12683] hppa: Fix Race conditions in pthread cancellation [BZ#12683]
@ 2023-04-11 14:19 Adhemerval Zanella
0 siblings, 0 replies; 2+ messages in thread
From: Adhemerval Zanella @ 2023-04-11 14:19 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=44b1af8914227de6047ee2c04eaed2cc925789a2
commit 44b1af8914227de6047ee2c04eaed2cc925789a2
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Apr 3 11:26:28 2023 -0300
hppa: Fix Race conditions in pthread cancellation [BZ#12683]
By adding the required syscall_cancel.S.
Checked on hppa-linux-gnu.
Diff:
---
sysdeps/unix/sysv/linux/hppa/syscall_cancel.S | 81 +++++++++++++++++++++++++++
1 file changed, 81 insertions(+)
diff --git a/sysdeps/unix/sysv/linux/hppa/syscall_cancel.S b/sysdeps/unix/sysv/linux/hppa/syscall_cancel.S
new file mode 100644
index 0000000000..b9c19747ea
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/hppa/syscall_cancel.S
@@ -0,0 +1,81 @@
+/* Cancellable syscall wrapper. Linux/hppa version.
+ Copyright (C) 2023 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 <descr-const.h>
+
+/* long int __syscall_cancel_arch (int *cancelhandling,
+ long int nr,
+ long int arg1,
+ long int arg2,
+ long int arg3,
+ long int arg4,
+ long int arg5,
+ long int arg6) */
+
+ .text
+ENTRY(__syscall_cancel_arch)
+ stw %r2,-20(%r30)
+ ldo 128(%r30),%r30
+ cfi_def_cfa_offset (-128)
+ cfi_offset (2, -20)
+ ldw -180(%r30),%r28
+ copy %r26,%r20
+ stw %r28,-108(%r30)
+ ldw -184(%r30),%r28
+ copy %r24,%r26
+ stw %r28,-112(%r30)
+ ldw -188(%r30),%r28
+ stw %r28,-116(%r30)
+ ldw -192(%r30),%r28
+ stw %r4,-104(%r30)
+ stw %r28,-120(%r30)
+ copy %r25,%r28
+ copy %r23,%r25
+#ifdef __PIC__
+ stw %r19,-32(%r30)
+#endif
+ cfi_offset (4, 24)
+
+ .global __syscall_cancel_arch_start
+__syscall_cancel_arch_start:
+ ldw 0(%r20),%r20
+ bb,< %r20,31-TCB_CANCELED_BIT,1f
+ ldw -120(%r30),%r21
+ ldw -116(%r30),%r22
+ ldw -112(%r30),%r23
+ ldw -108(%r30),%r24
+ copy %r19, %r4
+ ble 0x100(%sr2, %r0)
+
+ .global __syscall_cancel_arch_end
+__syscall_cancel_arch_end:
+
+ copy %r28,%r20
+ copy %r4,%r19
+
+ ldw -148(%r30),%r2
+ ldw -104(%r30),%r4
+ bv %r0(%r2)
+ ldo -128(%r30),%r30
+1:
+ bl __syscall_do_cancel,%r2
+ nop
+ nop
+
+END(__syscall_cancel_arch)
^ permalink raw reply [flat|nested] 2+ messages in thread
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2023-04-07 17:08 [glibc/azanella/bz12683] hppa: Fix Race conditions in pthread cancellation [BZ#12683] Adhemerval Zanella
2023-04-11 14:19 Adhemerval Zanella
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