pr_waitid.c revision a574db851cdc636fc3939b68e80d79fe7fbd57f2
17c478bdstevel@tonic-gate/*
27c478bdstevel@tonic-gate * CDDL HEADER START
37c478bdstevel@tonic-gate *
47c478bdstevel@tonic-gate * The contents of this file are subject to the terms of the
5a574db8raf * Common Development and Distribution License (the "License").
6a574db8raf * You may not use this file except in compliance with the License.
77c478bdstevel@tonic-gate *
87c478bdstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bdstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bdstevel@tonic-gate * See the License for the specific language governing permissions
117c478bdstevel@tonic-gate * and limitations under the License.
127c478bdstevel@tonic-gate *
137c478bdstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bdstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bdstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bdstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bdstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bdstevel@tonic-gate *
197c478bdstevel@tonic-gate * CDDL HEADER END
207c478bdstevel@tonic-gate */
21a574db8raf
227c478bdstevel@tonic-gate/*
23a574db8raf * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24a574db8raf * Use is subject to license terms.
257c478bdstevel@tonic-gate */
267c478bdstevel@tonic-gate
277c478bdstevel@tonic-gate#pragma ident	"%Z%%M%	%I%	%E% SMI"
287c478bdstevel@tonic-gate
297c478bdstevel@tonic-gate#include <sys/isa_defs.h>
307c478bdstevel@tonic-gate
317c478bdstevel@tonic-gate#include <stdlib.h>
327c478bdstevel@tonic-gate#include <unistd.h>
337c478bdstevel@tonic-gate#include <string.h>
347c478bdstevel@tonic-gate#include <errno.h>
357c478bdstevel@tonic-gate#include <sys/types.h>
367c478bdstevel@tonic-gate#include <sys/wait.h>
377c478bdstevel@tonic-gate
387c478bdstevel@tonic-gate#include "P32ton.h"
397c478bdstevel@tonic-gate#include "libproc.h"
407c478bdstevel@tonic-gate
417c478bdstevel@tonic-gate/*
427c478bdstevel@tonic-gate * waitid() system call -- executed by subject process
437c478bdstevel@tonic-gate */
447c478bdstevel@tonic-gateint
457c478bdstevel@tonic-gatepr_waitid(struct ps_prochandle *Pr,
46a574db8raf    idtype_t idtype, id_t id, siginfo_t *infop, int options)
477c478bdstevel@tonic-gate{
487c478bdstevel@tonic-gate	sysret_t rval;			/* return value from waitid() */
497c478bdstevel@tonic-gate	argdes_t argd[4];		/* arg descriptors for waitid() */
507c478bdstevel@tonic-gate	argdes_t *adp;
517c478bdstevel@tonic-gate	int error;
527c478bdstevel@tonic-gate#ifdef _LP64
537c478bdstevel@tonic-gate	siginfo32_t siginfo32;
547c478bdstevel@tonic-gate#endif	/* _LP64 */
557c478bdstevel@tonic-gate
567c478bdstevel@tonic-gate	if (Pr == NULL)		/* no subject process */
577c478bdstevel@tonic-gate		return (waitid(idtype, id, infop, options));
587c478bdstevel@tonic-gate
597c478bdstevel@tonic-gate	adp = &argd[0];		/* idtype argument */
607c478bdstevel@tonic-gate	adp->arg_value = idtype;
617c478bdstevel@tonic-gate	adp->arg_object = NULL;
627c478bdstevel@tonic-gate	adp->arg_type = AT_BYVAL;
637c478bdstevel@tonic-gate	adp->arg_inout = AI_INPUT;
647c478bdstevel@tonic-gate	adp->arg_size = 0;
657c478bdstevel@tonic-gate
667c478bdstevel@tonic-gate	adp++;			/* id argument */
677c478bdstevel@tonic-gate	adp->arg_value = id;
687c478bdstevel@tonic-gate	adp->arg_object = NULL;
697c478bdstevel@tonic-gate	adp->arg_type = AT_BYVAL;
707c478bdstevel@tonic-gate	adp->arg_inout = AI_INPUT;
717c478bdstevel@tonic-gate	adp->arg_size = 0;
727c478bdstevel@tonic-gate
737c478bdstevel@tonic-gate	adp++;			/* infop argument */
747c478bdstevel@tonic-gate	adp->arg_value = 0;
757c478bdstevel@tonic-gate	adp->arg_type = AT_BYREF;
767c478bdstevel@tonic-gate	adp->arg_inout = AI_OUTPUT;
777c478bdstevel@tonic-gate#ifdef _LP64
787c478bdstevel@tonic-gate	if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) {
797c478bdstevel@tonic-gate		adp->arg_object = &siginfo32;
807c478bdstevel@tonic-gate		adp->arg_size = sizeof (siginfo32);
817c478bdstevel@tonic-gate	} else {
827c478bdstevel@tonic-gate		adp->arg_object = infop;
837c478bdstevel@tonic-gate		adp->arg_size = sizeof (*infop);
847c478bdstevel@tonic-gate	}
857c478bdstevel@tonic-gate#else	/* _LP64 */
867c478bdstevel@tonic-gate	adp->arg_object = infop;
877c478bdstevel@tonic-gate	adp->arg_size = sizeof (*infop);
887c478bdstevel@tonic-gate#endif	/* _LP64 */
897c478bdstevel@tonic-gate
907c478bdstevel@tonic-gate	adp++;			/* options argument */
917c478bdstevel@tonic-gate	adp->arg_value = options;
927c478bdstevel@tonic-gate	adp->arg_object = NULL;
937c478bdstevel@tonic-gate	adp->arg_type = AT_BYVAL;
947c478bdstevel@tonic-gate	adp->arg_inout = AI_INPUT;
957c478bdstevel@tonic-gate	adp->arg_size = 0;
967c478bdstevel@tonic-gate
97a574db8raf	error = Psyscall(Pr, &rval, SYS_waitid, 4, &argd[0]);
987c478bdstevel@tonic-gate
997c478bdstevel@tonic-gate	if (error) {
1007c478bdstevel@tonic-gate		errno = (error > 0)? error : ENOSYS;
1017c478bdstevel@tonic-gate		return (-1);
1027c478bdstevel@tonic-gate	}
1037c478bdstevel@tonic-gate#ifdef _LP64
1047c478bdstevel@tonic-gate	if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
1057c478bdstevel@tonic-gate		siginfo_32_to_n(&siginfo32, infop);
1067c478bdstevel@tonic-gate#endif	/* _LP64 */
1077c478bdstevel@tonic-gate	return (0);
1087c478bdstevel@tonic-gate}
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