Fix longjmp on i386. Also adds siglongjmp.

1 files changed, 40 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/i386/__longjmp.S b/libc/sysdeps/linux/i386/__longjmp.S
new file mode 100644
index 000000000..484a564c3
--- /dev/null
+++ b/libc/sysdeps/linux/i386/__longjmp.S
@@ -0,0 +1,40 @@
+/* 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;