blob: a0c1334092cda3ee5e3909d63824e23257e95caa [file] [log] [blame]
/*
* arch/sparc64/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 0x6d
sub %o1, 1, %o1
bcc,a %xcc, 1f
and %o0, %o1, %o0
PIC_PROLOGUE(%g1,%g4)
SET(errno,%g1,%g4)
st %o0, [%g4]
retl
mov -1, %o0
1:
retl
nop