mirror of
https://sourceware.org/git/glibc.git
synced 2024-09-19 16:10:01 +00:00
25f1e16ef0
CET is only support for x86_64, this patch reverts: -faaee1f07ex86: Support shadow stack pointer in setjmp/longjmp. -be9ccd27c0i386: Add _CET_ENDBR to indirect jump targets in add_n.S/sub_n.S -c02695d776x86/CET: Update vfork to prevent child return -5d844e1b72i386: Enable CET support in ucontext functions -124bcde683x86: Add _CET_ENDBR to functions in crti.S -562837c002x86: Add _CET_ENDBR to functions in dl-tlsdesc.S -f753fa7deax86: Support IBT and SHSTK in Intel CET [BZ #21598] -825b58f3fbi386-mcount.S: Add _CET_ENDBR to _mcount and __fentry__ -7e119cd582i386: Use _CET_NOTRACK in i686/memcmp.S -177824e232i386: Use _CET_NOTRACK in memcmp-sse4.S -0a899af097i386: Use _CET_NOTRACK in memcpy-ssse3-rep.S -7fb613361ci386: Use _CET_NOTRACK in memcpy-ssse3.S -77a8ae0948i386: Use _CET_NOTRACK in memset-sse2-rep.S -00e7b76a8fi386: Use _CET_NOTRACK in memset-sse2.S -90d15dc577i386: Use _CET_NOTRACK in strcat-sse2.S -f1574581c7i386: Use _CET_NOTRACK in strcpy-sse2.S -4031d7484ai386/sub_n.S: Add a missing _CET_ENDBR to indirect jump - target - Checked on i686-linux-gnu.
87 lines
2.8 KiB
ArmAsm
87 lines
2.8 KiB
ArmAsm
/* Special .init and .fini section support for x86.
|
|
Copyright (C) 1995-2024 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
|
|
<https://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
|
|
.p2align 2
|
|
.globl _init
|
|
.hidden _init
|
|
.type _init, @function
|
|
_init:
|
|
pushl %ebx
|
|
/* Maintain 16-byte stack alignment for called functions. */
|
|
subl $8, %esp
|
|
LOAD_PIC_REG (bx)
|
|
#if PREINIT_FUNCTION_WEAK
|
|
movl PREINIT_FUNCTION@GOT(%ebx), %eax
|
|
testl %eax, %eax
|
|
je .Lno_weak_fn
|
|
call *%eax
|
|
.Lno_weak_fn:
|
|
#else
|
|
call PREINIT_FUNCTION
|
|
#endif
|
|
|
|
.section .fini,"ax",@progbits
|
|
.p2align 2
|
|
.globl _fini
|
|
.hidden _fini
|
|
.type _fini, @function
|
|
_fini:
|
|
pushl %ebx
|
|
subl $8, %esp
|
|
LOAD_PIC_REG (bx)
|