1/* $NetBSD: fork.S,v 1.11 2003/08/07 16:42:17 agc Exp $ */
2
3/*-
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell.
--- 19 unchanged lines hidden (view full) ---
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <machine/asm.h>
36__FBSDID("$FreeBSD: head/lib/libc/mips/sys/fork.S 209231 2010-06-16 12:55:14Z jchandra $");
37#include "SYS.h"
38
39#if defined(LIBC_SCCS) && !defined(lint)
40 ASMSTR("from: @(#)fork.s 8.1 (Berkeley) 6/4/93")
41 ASMSTR("$NetBSD: fork.S,v 1.11 2003/08/07 16:42:17 agc Exp $")
42#endif /* LIBC_SCCS and not lint */
43
44LEAF(__sys_fork)
45 WEAK_ALIAS(fork, __sys_fork)
46 WEAK_ALIAS(_fork, __sys_fork)
47 PIC_PROLOGUE(__sys_fork)
48 li v0, SYS_fork # pid = fork()
49 syscall
50 bne a3, zero, 2f
51 beq v1, zero, 1f # v1 == 0 in parent, 1 in child
52 move v0, zero
531:
54 PIC_RETURN()
552:
56 PIC_TAILCALL(__cerror)
57END(__sys_fork)
2
3/*-
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell.
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28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <machine/asm.h>
36__FBSDID("$FreeBSD: head/lib/libc/mips/sys/fork.S 209231 2010-06-16 12:55:14Z jchandra $");
37#include "SYS.h"
38
39#if defined(LIBC_SCCS) && !defined(lint)
40 ASMSTR("from: @(#)fork.s 8.1 (Berkeley) 6/4/93")
41 ASMSTR("$NetBSD: fork.S,v 1.11 2003/08/07 16:42:17 agc Exp $")
42#endif /* LIBC_SCCS and not lint */
43
44LEAF(__sys_fork)
45 WEAK_ALIAS(fork, __sys_fork)
46 WEAK_ALIAS(_fork, __sys_fork)
47 PIC_PROLOGUE(__sys_fork)
48 li v0, SYS_fork # pid = fork()
49 syscall
50 bne a3, zero, 2f
51 beq v1, zero, 1f # v1 == 0 in parent, 1 in child
52 move v0, zero
531:
54 PIC_RETURN()
552:
56 PIC_TAILCALL(__cerror)
57END(__sys_fork)