mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-16 18:10:11 +00:00
e5f88e0ca0
(POP_ERRNO_LOCATION_RETURN): Fold insns. * sysdeps/i386/bits/setjmp.h (JB_SIZE): New constant. (PUSH_SIGNAL_MASK): New macro. * sysdeps/i386/__longjmp.S (__longjmp): Wrap symbol in BP_SYM (). LEAVE is unnecessary. Check bounds of jmp_buf. * sysdeps/i386/elf/setjmp.S: Call PUSH_SIGNAL_MASK. Wrap symbols in BP_SYM (). Check bounds of jmp_buf. Don't call LEAVE until immediately before tail-call. * sysdeps/i386/setjmp.S: Likewise. * sysdeps/i386/bsd-_setjmp.S: Likewise. * sysdeps/i386/bsd-setjmp.S: Likewise. 2000-06-29 Greg McGary <greg@mcgary.org> * sysdeps/i386/bp-asm.h (PCOFF): New constant. (POP_ERRNO_LOCATION_RETURN): Fold insns. * sysdeps/i386/bits/setjmp.h (JB_SIZE): New constant. (PUSH_SIGNAL_MASK): New macro. * sysdeps/i386/__longjmp.S (__longjmp): Wrap symbol in BP_SYM (). LEAVE is unnecessary. Check bounds of jmp_buf. * sysdeps/i386/elf/setjmp.S: Call PUSH_SIGNAL_MASK. Wrap symbols in BP_SYM (). Check bounds of jmp_buf. Don't call LEAVE until immediately before tail-call. * sysdeps/i386/setjmp.S: Likewise. * sysdeps/i386/bsd-_setjmp.S: Likewise. * sysdeps/i386/bsd-setjmp.S: Likewise.
50 lines
1.6 KiB
ArmAsm
50 lines
1.6 KiB
ArmAsm
/* longjmp for i386.
|
|
Copyright (C) 1995, 1996, 1997, 1998, 2000 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. */
|
|
|
|
#include <sysdep.h>
|
|
#define _ASM
|
|
#define _SETJMP_H
|
|
#include <bits/setjmp.h>
|
|
#include <asm-syntax.h>
|
|
#include <bp-sym.h>
|
|
#include <bp-asm.h>
|
|
|
|
#define PARMS LINKAGE /* no space for saved regs */
|
|
#define JBUF PARMS
|
|
#define VAL JBUF+PTR_SIZE
|
|
|
|
ENTRY (BP_SYM (__longjmp))
|
|
ENTER
|
|
|
|
movl JBUF(%esp), %ecx /* User's jmp_buf in %ecx. */
|
|
CHECK_BOUNDS_BOTH_WIDE (%ecx, JBUF(%esp), $JB_SIZE)
|
|
|
|
movl VAL(%esp), %eax /* Second argument is return value. */
|
|
/* Save the return address now. */
|
|
movl (JB_PC*4)(%ecx), %edx
|
|
/* Restore registers. */
|
|
movl (JB_BX*4)(%ecx), %ebx
|
|
movl (JB_SI*4)(%ecx), %esi
|
|
movl (JB_DI*4)(%ecx), %edi
|
|
movl (JB_BP*4)(%ecx), %ebp
|
|
movl (JB_SP*4)(%ecx), %esp
|
|
/* Jump to saved PC. */
|
|
jmp *%edx
|
|
END (BP_SYM (__longjmp))
|