1 files changed, 27 insertions, 0 deletions
diff --git a/usr/klibc/arch/sparc/sysfork.S b/usr/klibc/arch/sparc/sysfork.S
new file mode 100644
index 0000000..3787b94
--- /dev/null
+++ b/usr/klibc/arch/sparc/sysfork.S
@@ -0,0 +1,27 @@
+/*
+ * arch/sparc/sysfork.S
+ *
+ * The fork and vfork system calls are special on sparc[64]:
+ * they return the "other process" pid in %o0 and the
+ * "is child" flag in %o1
+ *
+ * Common system-call stub; %g1 already set to syscall number
+ */
+
+#include <machine/asm.h>
+
+	.globl	__syscall_forkish
+	.type	__syscall_forkish,#function
+       	.align	4
+__syscall_forkish:
+	t	0x10
+	sub	%o1, 1, %o1
+	bcc,a	1f
+	  and	%o0, %o1, %o0
+	PIC_PROLOGUE(%g1,%g4)
+	SET(errno,%g1,%g4)
+	st	%o0,[%g4]
+	mov	-1, %o0
+1:
+       	retl
+	  nop