| Ovfork.S (188827) | Ovfork.S (209231) |
|---|---|
| 1/* $NetBSD: compat_Ovfork.S,v 1.1 2005/09/17 11:49:39 tsutsui 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> | 1/* $NetBSD: compat_Ovfork.S,v 1.1 2005/09/17 11:49:39 tsutsui 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/Ovfork.S 188827 2009-02-19 19:53:58Z imp $"); | 36__FBSDID("$FreeBSD: head/lib/libc/mips/sys/Ovfork.S 209231 2010-06-16 12:55:14Z jchandra $"); |
| 37#include "SYS.h" 38 39#if defined(LIBC_SCCS) && !defined(lint) 40 ASMSTR("from: @(#)Ovfork.s 8.1 (Berkeley) 6/4/93") 41 ASMSTR("$NetBSD: compat_Ovfork.S,v 1.1 2005/09/17 11:49:39 tsutsui Exp $") 42#endif /* LIBC_SCCS and not lint */ 43 44/* 45 * pid = vfork(); 46 * 47 * v1 == 0 in parent process, v1 == 1 in child process. 48 * v0 == pid of child in parent, v0 == pid of parent in child. 49 */ 50 51LEAF(__sys_vfork) | 37#include "SYS.h" 38 39#if defined(LIBC_SCCS) && !defined(lint) 40 ASMSTR("from: @(#)Ovfork.s 8.1 (Berkeley) 6/4/93") 41 ASMSTR("$NetBSD: compat_Ovfork.S,v 1.1 2005/09/17 11:49:39 tsutsui Exp $") 42#endif /* LIBC_SCCS and not lint */ 43 44/* 45 * pid = vfork(); 46 * 47 * v1 == 0 in parent process, v1 == 1 in child process. 48 * v0 == pid of child in parent, v0 == pid of parent in child. 49 */ 50 51LEAF(__sys_vfork) |
| 52#ifdef __ABICALLS__ 53 .set noreorder 54 .cpload t9 55 .set reorder 56#endif | |
| 57 WEAK_ALIAS(vfork, __sys_vfork) 58 WEAK_ALIAS(_vfork, __sys_vfork) | 52 WEAK_ALIAS(vfork, __sys_vfork) 53 WEAK_ALIAS(_vfork, __sys_vfork) |
| 54 PIC_PROLOGUE(__sys_vfork) |
|
| 59 li v0, SYS_vfork # system call number for vfork 60 syscall 61 beq a3, zero, 1f # jump if no errors | 55 li v0, SYS_vfork # system call number for vfork 56 syscall 57 beq a3, zero, 1f # jump if no errors |
| 62 la t9, __cerror 63 jr t9 | 58 PIC_TAILCALL(__cerror) |
| 641: 65 beq v1, zero, 2f # parent process ? 66 move v0, zero # return zero in child 672: | 591: 60 beq v1, zero, 2f # parent process ? 61 move v0, zero # return zero in child 622: |
| 68 j ra | 63 PIC_RETURN() |
| 69END(__sys_vfork) | 64END(__sys_vfork) |