glibc/sysdeps/i386/memset_chk.S
Frédéric Bérat dd8486ffc1 string: Ensure *_chk routines have their hidden builtin definition available
If libc_hidden_builtin_{def,proto} isn't properly set for *_chk routines,
there are unwanted PLT entries in libc.so.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
2023-07-05 16:59:48 +02:00

35 lines
1.2 KiB
ArmAsm

/* Checking memset for i386.
Copyright (C) 2004-2023 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
<https://www.gnu.org/licenses/>. */
#ifndef SHARED
# include <sysdep.h>
# include "asm-syntax.h"
/* For libc.so this is defined in memset.S. For libc.a, this is a
separate source to avoid memset bringing in __chk_fail and all
routines it calls. */
.text
ENTRY (__memset_chk)
movl 12(%esp), %eax
cmpl %eax, 16(%esp)
jb __chk_fail
jmp memset
END (__memset_chk)
libc_hidden_builtin_def (__memset_chk)
#endif