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-rw-r--r--libc/sysdeps/linux/i386/__longjmp.S40
1 files changed, 40 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/i386/__longjmp.S b/libc/sysdeps/linux/i386/__longjmp.S
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+++ b/libc/sysdeps/linux/i386/__longjmp.S
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+/* longjmp for i386.
+ Copyright (C) 1995, 1996, 1997, 1998 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. */
+
+#define _ASM
+#define _SETJMP_H
+#include <bits/setjmp.h>
+
+.globl __longjmp;
+.type __longjmp,@function
+.align 4; \
+__longjmp:
+ movl 4(%esp), %ecx /* User's jmp_buf in %ecx. */
+ movl 8(%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
+.size __longjmp,.-__longjmp;