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- /* 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 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/>. */
- /* 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 <jmpbuf-offsets.h>
- .global _setjmp
- .type _setjmp,%function
- _setjmp:
- xorl %eax, %eax
- movl 4 (%esp), %edx
- /* Save registers. */
- movl %ebx, (JB_BX*4)(%edx)
- movl %esi, (JB_SI*4)(%edx)
- movl %edi, (JB_DI*4)(%edx)
- leal 4 (%esp), %ecx /* Save SP as it will be after we return. */
- movl %ecx, (JB_SP*4)(%edx)
- movl 0 (%esp), %ecx /* Save PC we are returning to now. */
- movl %ecx, (JB_PC*4)(%edx)
- movl %ebp, (JB_BP*4)(%edx) /* Save caller's frame pointer. */
- movl %eax, JB_SIZE(%edx) /* No signal mask set. */
- ret
- .size _setjmp,.-_setjmp
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