34 lines
791 B
ArmAsm
Executable File
34 lines
791 B
ArmAsm
Executable File
/* Copyright (c) 1988 AT&T */
|
|
/* All Rights Reserved */
|
|
|
|
/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
|
|
/* The copyright notice above does not evidence any */
|
|
/* actual or intended publication of such source code. */
|
|
|
|
/* Copyright (c) 1989 by Sun Microsystems, Inc. */
|
|
|
|
.ident "@(#)_fork1.s 1.3 94/11/02 SMI" /* SVr4.0 1.7 */
|
|
|
|
/* C library -- fork1 */
|
|
/* pid_t fork1(void) */
|
|
|
|
/*
|
|
* From the syscall:
|
|
* %o1 == 0 in parent process, %o1 == 1 in child process.
|
|
* %o0 == pid of child in parent, %o0 == pid of parent in child.
|
|
*/
|
|
|
|
.file "_fork1.s"
|
|
|
|
#include "SYS.h"
|
|
|
|
ENTRY(__fork1);
|
|
SYSTRAP(fork1);
|
|
SYSCERROR
|
|
tst %o1 !test for child
|
|
bnz,a 1f !if !0, then child - jump
|
|
clr %o0 !child, return (0)
|
|
1: !parent, return (%o0 = child pid)
|
|
RET
|
|
SET_SIZE(__fork1)
|