import winsup-2000-02-17 snapshot

1 files changed, 51 insertions, 0 deletions

diff --git a/winsup/cygwin/config/i386/longjmp.c b/winsup/cygwin/config/i386/longjmp.c
new file mode 100644
index 000000000..d663e20f7
--- /dev/null
+++ b/winsup/cygwin/config/i386/longjmp.c
@@ -0,0 +1,51 @@
+/* longjmp.c
+
+   Copyright 1996, 1998 Cygnus Solutions.
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#ifdef __i386__
+#if 1
+asm ("	.globl	_longjmp          \n"
+"_longjmp:                        \n"
+"	pushl	%ebp              \n"
+"	movl	%esp,%ebp	  \n"
+"	movl	8(%ebp),%edi	  \n"
+"	movl	12(%ebp),%eax	  \n"
+"	testl	%eax,%eax	  \n"
+"	jne	0f		  \n"
+"	incl	%eax		  \n"
+"0:				  \n"
+"	movl	%eax,0(%edi)	  \n"
+"	movl	24(%edi),%ebp	  \n"
+"	pushfl			  \n"
+"	popl	%ebx		  \n"
+"	movw	42(%edi),%ax	  \n"
+"	movw	%ax,%ss		  \n"
+"	movl	28(%edi),%esp	  \n"
+"	pushl	32(%edi)	  \n"
+"       pushl	%ebx		  \n"
+"	movw	36(%edi),%ax	  \n"
+"	movw	%ax,%es		  \n"
+#if 0
+/* fs is a system register in windows; don't muck with it */
+"	movw	38(%edi),%ax	  \n"
+"	movw	%ax,%fs		  \n"
+#endif
+"	movw	40(%edi),%ax	  \n"
+"	movw	%ax,%gs		  \n"
+"	movl	0(%edi),%eax	  \n"
+"	movl	4(%edi),%ebx	  \n"
+"	movl	8(%edi),%ecx	  \n"
+"	movl	12(%edi),%edx	  \n"
+"	movl	16(%edi),%esi	  \n"
+"	movl	20(%edi),%edi	  \n"
+"	popfl			  \n"
+"	ret			  \n");
+#endif
+
+#endif /* __i386__ */