mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-29 16:21:07 +00:00
58 lines
1.7 KiB
ArmAsm
58 lines
1.7 KiB
ArmAsm
/* setjmp for i386.
|
|
Copyright (C) 1995-2013 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 <jmpbuf-offsets.h>
|
|
#include <asm-syntax.h>
|
|
#include <stap-probe.h>
|
|
|
|
#define PARMS 4 /* no space for saved regs */
|
|
#define JMPBUF PARMS
|
|
#define SIGMSK JMPBUF+4
|
|
|
|
ENTRY (__sigsetjmp)
|
|
|
|
movl JMPBUF(%esp), %eax
|
|
|
|
/* Save registers. */
|
|
movl %ebx, (JB_BX*4)(%eax)
|
|
movl %esi, (JB_SI*4)(%eax)
|
|
movl %edi, (JB_DI*4)(%eax)
|
|
leal JMPBUF(%esp), %ecx /* Save SP as it will be after we return. */
|
|
#ifdef PTR_MANGLE
|
|
PTR_MANGLE (%ecx)
|
|
#endif
|
|
movl %ecx, (JB_SP*4)(%eax)
|
|
movl 0(%esp), %ecx /* Save PC we are returning to now. */
|
|
LIBC_PROBE (setjmp, 3, 4@%eax, -4@SIGMSK(%esp), 4@%ecx)
|
|
#ifdef PTR_MANGLE
|
|
PTR_MANGLE (%ecx)
|
|
#endif
|
|
movl %ecx, (JB_PC*4)(%eax)
|
|
movl %ebp, (JB_BP*4)(%eax) /* Save caller's frame pointer. */
|
|
|
|
#if defined NOT_IN_libc && defined IS_IN_rtld
|
|
/* In ld.so we never save the signal mask. */
|
|
xorl %eax, %eax
|
|
ret
|
|
#else
|
|
/* Make a tail call to __sigjmp_save; it takes the same args. */
|
|
jmp __sigjmp_save
|
|
#endif
|
|
END (__sigsetjmp)
|