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Annotation of 43BSDTahoe/lib/libc/tahoe/sys/wait3.s, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1983 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  */
        !            17: 
        !            18: #if defined(SYSLIBC_SCCS) && !defined(lint)
        !            19:        .asciz "@(#)wait3.s     5.3 (Berkeley) 6/27/88"
        !            20: #endif /* SYSLIBC_SCCS and not lint */
        !            21: 
        !            22: /*
        !            23:  * C library -- wait3
        !            24:  *
        !            25:  * pid = wait3(&status, flags, &rusage);
        !            26:  *
        !            27:  * pid == -1 if error
        !            28:  * status indicates fate of process, if given
        !            29:  * flags may indicate process is not to hang or
        !            30:  * that untraced stopped children are to be reported.
        !            31:  * rusage optionally returns detailed resource usage information
        !            32:  */
        !            33: #include "SYS.h"
        !            34: 
        !            35: #define        SYS_wait3       SYS_wait
        !            36: 
        !            37: ENTRY(wait3)
        !            38:        movl    8(fp),r0        /* make it easy for system to get */
        !            39:        movl    12(fp),r1       /* these extra arguments */
        !            40:        bispsw  $0xf            /* flags wait3() (N,Z,V,C)*/
        !            41:        kcall   $SYS_wait3
        !            42:        bcc     noerror
        !            43:        movl    r0,_errno
        !            44:        mnegl   $1,r0
        !            45:        ret
        !            46: noerror:
        !            47:        tstl    4(fp)           /* status desired? */
        !            48:        beql    nostatus        /* no */
        !            49:        movl    r1,*4(fp)       /* store child's status */
        !            50: nostatus:
        !            51:        ret

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