scc

commit 097cb6692dd6ec81b8101b3800550c09077cc6c4
parent 48dd8628d8c5a4570782375bf69c2220317cc5eb
Author: zerous Naveen Narayanan <zerous@nocebo.space>
Date:   Sat, 16 Nov 2019 13:43:45 +0100

Update setjmp.s and longjmp.s for i386/linux

This version respects %ecx unlike the last one.

Diffstat:
M
src/libc/arch/i386/longjmp.s
 | 
20
+++++++++++---------
M
src/libc/arch/i386/setjmp.s
 | 
23
++++++++++++-----------

2 files changed, 23 insertions(+), 20 deletions(-)
diff --git a/src/libc/arch/i386/longjmp.s b/src/libc/arch/i386/longjmp.s
@@ -1,19 +1,21 @@
 	.file	"longjmp.s"
 
 	.text
-	.globl	_longjmp
+	.globl	longjmp,_longjmp
 _longjmp:
+longjmp:
 	mov  	4(%esp),%edx
 	mov  	8(%esp),%eax
 	test    %eax,%eax
 	jnz 	1f
 	inc     %eax
 1:
-	mov   	(%edx),%ebx
-	mov  	4(%edx),%esi
-	mov  	8(%edx),%edi
-	mov 	12(%edx),%ebp
-	mov 	16(%edx),%ecx
-	mov     %ecx,%esp
-	mov 	20(%edx),%ecx
-	jmp 	*%ecx
+	movl   	(%edx),%ebx
+	movl  	4(%edx),%ecx
+	movl 	8(%edx),%esi
+	movl 	12(%edx),%edi
+	movl	16(%edx),%ebp
+	movl	20(%edx),%esp
+	pushl   24(%edx)
+	popl	%edx
+	jmp 	*%edx
diff --git a/src/libc/arch/i386/setjmp.s b/src/libc/arch/i386/setjmp.s
@@ -1,16 +1,17 @@
 	.file	"setjmp.s"
 
 	.text
-	.globl	_setjmp
+	.globl	setjmp,_setjmp
 _setjmp:
-	mov 	4(%esp),%eax
-	mov    	%ebx,(%eax)
-	mov    	%esi,4(%eax)
-	mov    	%edi,8(%eax)
-	mov    	%ebp,12(%eax)
-	lea 	4(%esp),%ecx
-	mov    	%ecx,16(%eax)
-	mov  	(%esp),%ecx
-	mov    	%ecx,20(%eax)
-	xor    	%eax,%eax
+setjmp:
+	movl    4(%esp),%eax
+	movl    %ebx,(%eax)
+	movl    %ecx,4(%eax)
+	movl    %esi,8(%eax)
+	movl    %edi,12(%eax)
+	movl    %ebp,16(%eax)
+	movl    %esp,20(%eax)
+	pushl   (%esp)
+	popl	24(%eax)
+	xor     %eax,%eax
 	ret