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* [glibc/arm/morello/main] aarch64: morello: add prctl with correct vararg handling
@ 2022-10-27 13:53 Szabolcs Nagy
0 siblings, 0 replies; 4+ messages in thread
From: Szabolcs Nagy @ 2022-10-27 13:53 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d79c61b3b98e52154c421891ecb3bfb417f5a66c
commit d79c61b3b98e52154c421891ecb3bfb417f5a66c
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date: Wed Oct 26 10:19:30 2022 +0100
aarch64: morello: add prctl with correct vararg handling
prctl is a variadic function and on morello args that were not passed
cannot be accessed so the generic code does not work.
Diff:
---
sysdeps/unix/sysv/linux/aarch64/morello/prctl.S | 44 +++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/sysdeps/unix/sysv/linux/aarch64/morello/prctl.S b/sysdeps/unix/sysv/linux/aarch64/morello/prctl.S
new file mode 100644
index 0000000000..f4e253af41
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/morello/prctl.S
@@ -0,0 +1,44 @@
+/* Copyright (C) 2022 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
+ <https://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+/* prctl (int option, ...) with 4 optional variadic arguments. */
+
+ENTRY (__prctl)
+ mov x8, #__NR_prctl
+ cbz x9, L(skip_args)
+ gclen x10, c9
+ ldr c1, [c9]
+ cmp x10, 16
+ bls L(skip_args)
+ ldr c2, [c9,16]
+ cmp x10, 32
+ bls L(skip_args)
+ ldr c3, [c9,32]
+ cmp x10, 48
+ bls L(skip_args)
+ ldr c4, [c9,48]
+L(skip_args):
+ svc 0x0
+ cmn x0, #4095
+ b.cs .Lsyscall_error
+ ret
+PSEUDO_END (__prctl)
+libc_hidden_def (__prctl)
+weak_alias (__prctl, prctl)
^ permalink raw reply [flat|nested] 4+ messages in thread
* [glibc/arm/morello/main] aarch64: morello: add prctl with correct vararg handling
@ 2022-11-23 14:43 Szabolcs Nagy
0 siblings, 0 replies; 4+ messages in thread
From: Szabolcs Nagy @ 2022-11-23 14:43 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=04d2fec011b657210a410e95ec61783f77987648
commit 04d2fec011b657210a410e95ec61783f77987648
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date: Wed Oct 26 10:19:30 2022 +0100
aarch64: morello: add prctl with correct vararg handling
prctl is a variadic function and on morello args that were not passed
cannot be accessed so the generic code does not work.
Diff:
---
sysdeps/unix/sysv/linux/aarch64/morello/prctl.S | 44 +++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/sysdeps/unix/sysv/linux/aarch64/morello/prctl.S b/sysdeps/unix/sysv/linux/aarch64/morello/prctl.S
new file mode 100644
index 0000000000..f4e253af41
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/morello/prctl.S
@@ -0,0 +1,44 @@
+/* Copyright (C) 2022 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
+ <https://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+/* prctl (int option, ...) with 4 optional variadic arguments. */
+
+ENTRY (__prctl)
+ mov x8, #__NR_prctl
+ cbz x9, L(skip_args)
+ gclen x10, c9
+ ldr c1, [c9]
+ cmp x10, 16
+ bls L(skip_args)
+ ldr c2, [c9,16]
+ cmp x10, 32
+ bls L(skip_args)
+ ldr c3, [c9,32]
+ cmp x10, 48
+ bls L(skip_args)
+ ldr c4, [c9,48]
+L(skip_args):
+ svc 0x0
+ cmn x0, #4095
+ b.cs .Lsyscall_error
+ ret
+PSEUDO_END (__prctl)
+libc_hidden_def (__prctl)
+weak_alias (__prctl, prctl)
^ permalink raw reply [flat|nested] 4+ messages in thread
* [glibc/arm/morello/main] aarch64: morello: add prctl with correct vararg handling
@ 2022-10-26 15:14 Szabolcs Nagy
0 siblings, 0 replies; 4+ messages in thread
From: Szabolcs Nagy @ 2022-10-26 15:14 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f2c6fa2b30bc8123c178f8b9d88d206136b5c7bd
commit f2c6fa2b30bc8123c178f8b9d88d206136b5c7bd
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date: Wed Oct 26 10:19:30 2022 +0100
aarch64: morello: add prctl with correct vararg handling
prctl is a variadic function and on morello args that were not passed
cannot be accessed so the generic code does not work.
Diff:
---
sysdeps/unix/sysv/linux/aarch64/morello/prctl.S | 44 +++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/sysdeps/unix/sysv/linux/aarch64/morello/prctl.S b/sysdeps/unix/sysv/linux/aarch64/morello/prctl.S
new file mode 100644
index 0000000000..f4e253af41
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/morello/prctl.S
@@ -0,0 +1,44 @@
+/* Copyright (C) 2022 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
+ <https://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+/* prctl (int option, ...) with 4 optional variadic arguments. */
+
+ENTRY (__prctl)
+ mov x8, #__NR_prctl
+ cbz x9, L(skip_args)
+ gclen x10, c9
+ ldr c1, [c9]
+ cmp x10, 16
+ bls L(skip_args)
+ ldr c2, [c9,16]
+ cmp x10, 32
+ bls L(skip_args)
+ ldr c3, [c9,32]
+ cmp x10, 48
+ bls L(skip_args)
+ ldr c4, [c9,48]
+L(skip_args):
+ svc 0x0
+ cmn x0, #4095
+ b.cs .Lsyscall_error
+ ret
+PSEUDO_END (__prctl)
+libc_hidden_def (__prctl)
+weak_alias (__prctl, prctl)
^ permalink raw reply [flat|nested] 4+ messages in thread
* [glibc/arm/morello/main] aarch64: morello: add prctl with correct vararg handling
@ 2022-10-26 14:49 Szabolcs Nagy
0 siblings, 0 replies; 4+ messages in thread
From: Szabolcs Nagy @ 2022-10-26 14:49 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=bf969db943228fa1d2bf21e0053687bbdd241500
commit bf969db943228fa1d2bf21e0053687bbdd241500
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date: Wed Oct 26 10:19:30 2022 +0100
aarch64: morello: add prctl with correct vararg handling
prctl is a variadic function and on morello args that were not passed
cannot be accessed so the generic code does not work.
Diff:
---
sysdeps/unix/sysv/linux/aarch64/morello/prctl.S | 44 +++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/sysdeps/unix/sysv/linux/aarch64/morello/prctl.S b/sysdeps/unix/sysv/linux/aarch64/morello/prctl.S
new file mode 100644
index 0000000000..f4e253af41
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/morello/prctl.S
@@ -0,0 +1,44 @@
+/* Copyright (C) 2022 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
+ <https://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+/* prctl (int option, ...) with 4 optional variadic arguments. */
+
+ENTRY (__prctl)
+ mov x8, #__NR_prctl
+ cbz x9, L(skip_args)
+ gclen x10, c9
+ ldr c1, [c9]
+ cmp x10, 16
+ bls L(skip_args)
+ ldr c2, [c9,16]
+ cmp x10, 32
+ bls L(skip_args)
+ ldr c3, [c9,32]
+ cmp x10, 48
+ bls L(skip_args)
+ ldr c4, [c9,48]
+L(skip_args):
+ svc 0x0
+ cmn x0, #4095
+ b.cs .Lsyscall_error
+ ret
+PSEUDO_END (__prctl)
+libc_hidden_def (__prctl)
+weak_alias (__prctl, prctl)
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-11-23 14:43 UTC | newest]
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