56 lines
2.0 KiB
ArmAsm
56 lines
2.0 KiB
ArmAsm
/* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'. i386 version.
|
|
Copyright (C) 1994,1995,1996,1997,2000,2001 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 Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
/* This just does a tail-call to `__sigsetjmp (ARG, 0)'.
|
|
We cannot do it in C because it must be a tail-call, so frame-unwinding
|
|
in setjmp doesn't clobber the state restored by longjmp. */
|
|
|
|
#include <sysdep.h>
|
|
#define _ASM
|
|
#define _SETJMP_H
|
|
#include <bits/setjmp.h>
|
|
#include "bp-sym.h"
|
|
#include "bp-asm.h"
|
|
|
|
#define PARMS LINKAGE /* no space for saved regs */
|
|
#define JMPBUF PARMS
|
|
#define SIGMSK JMPBUF+PTR_SIZE
|
|
|
|
ENTRY (BP_SYM (_setjmp))
|
|
ENTER
|
|
|
|
xorl %eax, %eax
|
|
movl JMPBUF(%esp), %edx
|
|
CHECK_BOUNDS_BOTH_WIDE (%edx, JMPBUF(%esp), $(JB_SIZE+4))
|
|
|
|
/* Save registers. */
|
|
movl %ebx, (JB_BX*4)(%edx)
|
|
movl %esi, (JB_SI*4)(%edx)
|
|
movl %edi, (JB_DI*4)(%edx)
|
|
leal JMPBUF(%esp), %ecx /* Save SP as it will be after we return. */
|
|
movl %ecx, (JB_SP*4)(%edx)
|
|
movl PCOFF(%esp), %ecx /* Save PC we are returning to now. */
|
|
movl %ecx, (JB_PC*4)(%edx)
|
|
LEAVE
|
|
movl %ebp, (JB_BP*4)(%edx) /* Save caller's frame pointer. */
|
|
|
|
movl %eax, JB_SIZE(%edx) /* No signal mask set. */
|
|
ret
|
|
END (BP_SYM (_setjmp))
|