From 5d8c07b3f29fc508b92a15b67307020751b044fa Mon Sep 17 00:00:00 2001
From: Ben Gras <ben@minix3.org>
Date: Wed, 2 Aug 2006 12:03:02 +0000
Subject: [PATCH] Fix by Joren for setjmp to not clobber %ebx.

---
 lib/gnu/rts/_setjmp.gs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/gnu/rts/_setjmp.gs b/lib/gnu/rts/_setjmp.gs
index 60b86cab4..e9e76034f 100644
--- a/lib/gnu/rts/_setjmp.gs
+++ b/lib/gnu/rts/_setjmp.gs
@@ -11,7 +11,6 @@ ___setjmp:
 	movl	%ebx, 8(%eax)		# save program counter
 	movl	%esp, 12(%eax)		# save stack pointer
 	movl	%ebp, 16(%eax)		# save frame pointer
-	movl	20(%eax), %ebx 		# restore ebx
 	movl	%ecx, 24(%eax)
 	movl	%edx, 28(%eax)
 	movl	%esi, 32(%eax)
@@ -19,6 +18,9 @@ ___setjmp:
 	
 	movl	8(%esp), %ebx		# save mask?
 	movl	%ebx, 0(%eax)		# save whether to restore mask
+
+	pushl	20(%eax)		# save ebx
+
 	testl	%ebx, %ebx
 	jz		1f
 	leal	4(%eax), %ebx		# pointer to sigset_t
@@ -26,6 +28,7 @@ ___setjmp:
 	call	___newsigset		# save mask	
 	addl	$4, %esp
 1:
+	popl	%ebx
 	movl	$0, %eax
 	ret
 
-- 
2.44.0