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- /* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. i386 version.
- Copyright (C) 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/>. */
- .global setjmp
- .type setjmp,%function
- setjmp:
- movl 4 (%esp), %eax
- /* Save registers. */
- movl %ebx, (0 *4)(%eax)
- movl %esi, (1 *4)(%eax)
- movl %edi, (2 *4)(%eax)
- /* Save SP as it will be after we return. */
- leal 4 (%esp), %ecx
- movl %ecx, (4 *4)(%eax)
- /* Save PC we are returning to now. */
- movl 0 (%esp), %ecx
- movl %ecx, (5 *4)(%eax)
- /* Save caller's frame pointer. */
- movl %ebp, (3 *4)(%eax)
- /* Call __sigjmp_save. */
- pushl $1
- pushl 8(%esp)
- #ifdef __PIC__
- /* We cannot use the PLT, because it requires that %ebx be set, but
- we can't save and restore our caller's value. Instead, we do an
- indirect jump through the GOT, using for the temporary register
- %ecx, which is call-clobbered. */
- call here2
- here2: popl %ecx
- addl $_GLOBAL_OFFSET_TABLE_+[.-here2], %ecx
- movl __sigjmp_save @GOT (%ecx), %ecx
- call *%ecx
- #else
- call __sigjmp_save
- #endif
- popl %ecx
- popl %edx
- ret
- .size setjmp,.-setjmp
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