First round of VAX patches. This isn't complete right now, there are for

sure still bugs (properly hidden, of course), a libm is completely missing
(I've got one that implements some basic stuff, but that's really not
ready for checking in...)

I've also got a list of other things that need touch-ups, but that's mostly
minor stuff that'll be done during the next days.

1 files changed, 54 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/vax/_setjmp.S b/libc/sysdeps/linux/vax/_setjmp.S
new file mode 100644
index 000000000..17d3160d8
--- /dev/null
+++ b/libc/sysdeps/linux/vax/_setjmp.S
@@ -0,0 +1,54 @@
+
+.globl _setjmp
+.align 4
+_setjmp:
+	.word	0x0040
+
+	/* push an empty word onto the stack */
+	pushl	$0
+
+	/* now copy handler, psw, ap, fp and pc on the stack up one word */
+	movl	4(%sp), (%sp)		/* copy handler */
+	movl	8(%sp), 4(%sp)		/* psw */
+	movl	12(%sp), 8(%sp)		/* ap */
+	movl	16(%sp), 12(%sp)	/* fp */
+	movl	20(%sp), 16(%sp)	/* pc */
+	movl	24(%sp), 20(%sp)	/* r6 from register mask */
+
+	movl	$2, 24(%sp)		/* set the number of arguments to 2 */
+	movl	32(%sp), 28(%sp)	/* copy the jmp_buf */
+	movl	$1, 32(%sp)		/* put the 1 on the stack */
+
+	addl3	$24, %sp, %ap
+	movl	%sp, %fp
+
+	moval	__sigsetjmp, %r0
+	addl2	$2, %r0
+	pushl	%r0
+	rsb
+
+.globl setjmp
+.align 4
+setjmp:
+	.word	0x0040
+	pushl	$0
+
+	/* now copy handler, psw, ap, fp and pc on the stack up one word */
+	movl	4(%sp), (%sp)
+	movl	8(%sp), 4(%sp)
+	movl	12(%sp), 8(%sp)
+	movl	16(%sp), 12(%sp)
+	movl	20(%sp), 16(%sp)
+	movl	24(%sp), 20(%sp)	/* r6 from register mask */
+
+	movl	$2, 24(%sp)		/* set the number of arguments to 2 */
+	movl	32(%sp), 28(%sp)	/* copy the jmp_buf */
+	movl	$0, 32(%sp)		/* put the 0 on the stack */
+
+	addl3	$24, %sp, %ap
+	movl	%sp, %fp
+
+	moval	__sigsetjmp, %r0
+	addl2	$2, %r0
+	pushl	%r0
+	rsb