glibc/sysdeps/i386/__longjmp.S
Roland McGrath a7140723f8 2006-01-12 Roland McGrath <roland@redhat.com>
* sysdeps/alpha/__longjmp.S: Include <jmpbuf-offsets.h>
	instead of <bits/setjmp.h>.
	* sysdeps/alpha/setjmp.S: Likewise.
	* sysdeps/i386/__longjmp.S: Likewise.
	* sysdeps/i386/bsd-_setjmp.S: Likewise.
	* sysdeps/i386/bsd-setjmp.S: Likewise.
	* sysdeps/i386/setjmp.S: Likewise.
	* sysdeps/powerpc/powerpc32/__longjmp-common.S: Likewise.
	* sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S: Likewise.
	* sysdeps/powerpc/powerpc32/fpu/setjmp-common.S:
	* sysdeps/powerpc/powerpc32/setjmp-common.S: Likewise.
	* sysdeps/powerpc/powerpc64/__longjmp-common.S: Likewise.
	* sysdeps/powerpc/powerpc64/setjmp-common.S: Likewise.
	* sysdeps/sh/sh3/setjmp.S: Likewise.
	* sysdeps/sh/sh4/setjmp.S: Likewise.
	* sysdeps/sparc/sparc32/__longjmp.S: Likewise.
	* sysdeps/sparc/sparc32/setjmp.S: Likewise.
	* sysdeps/x86_64/__longjmp.S: Likewise.
	* sysdeps/x86_64/setjmp.S: Likewise.
	* sysdeps/mach/hurd/i386/longjmp-ts.c: Include <jmpbuf-offsets.h>.
	* sysdeps/mach/hurd/powerpc/longjmp-ts.c: Likewise.
	* sysdeps/mach/hurd/alpha/longjmp-ts.c: Likewise.
	* sysdeps/alpha/jmpbuf-unwind.h: Likewise.
	* sysdeps/hppa/jmpbuf-unwind.h: Likewise.
	* sysdeps/i386/jmpbuf-unwind.h: Likewise.
	* sysdeps/powerpc/jmpbuf-unwind.h: Likewise.
	* sysdeps/sparc/sparc32/jmpbuf-unwind.h: Likewise.
	* sysdeps/sparc/sparc64/jmpbuf-unwind.h: Likewise.
	* sysdeps/x86_64/jmpbuf-unwind.h: Likewise.
	* setjmp/jmpbuf-offsets.h: File removed.
	* include/bits/setjmp.h: File removed.
2006-01-12 09:27:47 +00:00

79 lines
2.4 KiB
ArmAsm

/* longjmp for i386.
Copyright (C) 1995-1998,2000,2002,2005, 2006 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep.h>
#include <jmpbuf-offsets.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
#ifdef PTR_DEMANGLE
movl JBUF(%esp), %eax /* User's jmp_buf in %eax. */
CHECK_BOUNDS_BOTH_WIDE (%eax, JBUF(%esp), $JB_SIZE)
/* Save the return address now. */
movl (JB_PC*4)(%eax), %edx
/* Get the stack pointer. */
movl (JB_SP*4)(%eax), %ecx
PTR_DEMANGLE (%edx)
PTR_DEMANGLE (%ecx)
cfi_def_cfa(%eax, 0)
cfi_register(%eip, %edx)
cfi_register(%esp, %ecx)
cfi_offset(%ebx, JB_BX*4)
cfi_offset(%esi, JB_SI*4)
cfi_offset(%edi, JB_DI*4)
cfi_offset(%ebp, JB_BP*4)
/* Restore registers. */
movl (JB_BX*4)(%eax), %ebx
movl (JB_SI*4)(%eax), %esi
movl (JB_DI*4)(%eax), %edi
movl (JB_BP*4)(%eax), %ebp
cfi_restore(%ebx)
cfi_restore(%esi)
cfi_restore(%edi)
cfi_restore(%ebp)
movl VAL(%esp), %eax /* Second argument is return value. */
movl %ecx, %esp
#else
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
#endif
/* Jump to saved PC. */
jmp *%edx
END (BP_SYM (__longjmp))