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
57c478bdstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bdstevel@tonic-gate * (the "License").  You may not use this file except in compliance
77c478bdstevel@tonic-gate * with the License.
87c478bdstevel@tonic-gate *
97c478bdstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bdstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bdstevel@tonic-gate * See the License for the specific language governing permissions
127c478bdstevel@tonic-gate * and limitations under the License.
137c478bdstevel@tonic-gate *
147c478bdstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bdstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bdstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bdstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bdstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bdstevel@tonic-gate *
207c478bdstevel@tonic-gate * CDDL HEADER END
217c478bdstevel@tonic-gate */
227c478bdstevel@tonic-gate/*
237c478bdstevel@tonic-gate * Copyright (c) 1998, Sun Microsystems, Inc.
247c478bdstevel@tonic-gate * All rights reserved.
25b97d6caMilan Jurik * Copyright 2012 Milan Jurik. All rights reserved.
267c478bdstevel@tonic-gate */
277c478bdstevel@tonic-gate
287c478bdstevel@tonic-gate/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
297c478bdstevel@tonic-gate/*	  All Rights Reserved	*/
307c478bdstevel@tonic-gate
317c478bdstevel@tonic-gate#include <sys/param.h>
327c478bdstevel@tonic-gate#include <sys/types.h>
337c478bdstevel@tonic-gate#include <sys/sysmacros.h>
347c478bdstevel@tonic-gate#include <sys/systm.h>
357c478bdstevel@tonic-gate#include <sys/errno.h>
367c478bdstevel@tonic-gate#include <sys/proc.h>
377c478bdstevel@tonic-gate#include <sys/debug.h>
387c478bdstevel@tonic-gate
397c478bdstevel@tonic-gate/*
407c478bdstevel@tonic-gate * Profiling.
417c478bdstevel@tonic-gate */
427c478bdstevel@tonic-gateint
43b97d6caMilan Jurikprofil(unsigned short *bufbase, size_t bufsize, ulong_t pcoffset,
44b97d6caMilan Jurik    uint_t pcscale)
457c478bdstevel@tonic-gate{
467c478bdstevel@tonic-gate	struct proc *p = ttoproc(curthread);
477c478bdstevel@tonic-gate
487c478bdstevel@tonic-gate	if (pcscale == 1)
497c478bdstevel@tonic-gate		pcscale = 0;
507c478bdstevel@tonic-gate
517c478bdstevel@tonic-gate	mutex_enter(&p->p_pflock);
527c478bdstevel@tonic-gate	p->p_prof.pr_base = bufbase;
537c478bdstevel@tonic-gate	p->p_prof.pr_size = bufsize;
547c478bdstevel@tonic-gate	p->p_prof.pr_off = pcoffset;
557c478bdstevel@tonic-gate	p->p_prof.pr_scale = pcscale;
567c478bdstevel@tonic-gate
577c478bdstevel@tonic-gate	/* pcsample and profil are mutually exclusive */
587c478bdstevel@tonic-gate	p->p_prof.pr_samples = 0;
597c478bdstevel@tonic-gate
607c478bdstevel@tonic-gate	mutex_exit(&p->p_pflock);
617c478bdstevel@tonic-gate	mutex_enter(&p->p_lock);
627c478bdstevel@tonic-gate	set_proc_post_sys(p);	/* activate post_syscall profiling code */
637c478bdstevel@tonic-gate	mutex_exit(&p->p_lock);
647c478bdstevel@tonic-gate	return (0);
657c478bdstevel@tonic-gate}
667c478bdstevel@tonic-gate
677c478bdstevel@tonic-gate
687c478bdstevel@tonic-gate/*
697c478bdstevel@tonic-gate * PC Sampling
707c478bdstevel@tonic-gate */
717c478bdstevel@tonic-gatelong
727c478bdstevel@tonic-gatepcsample(void *buf, long nsamples)
737c478bdstevel@tonic-gate{
747c478bdstevel@tonic-gate	struct proc *p = ttoproc(curthread);
757c478bdstevel@tonic-gate	long count = 0;
767c478bdstevel@tonic-gate
777c478bdstevel@tonic-gate	if (nsamples < 0 ||
787c478bdstevel@tonic-gate	    ((get_udatamodel() != DATAMODEL_NATIVE) && (nsamples > INT32_MAX)))
797c478bdstevel@tonic-gate		return (set_errno(EINVAL));
807c478bdstevel@tonic-gate
817c478bdstevel@tonic-gate	mutex_enter(&p->p_pflock);
827c478bdstevel@tonic-gate	p->p_prof.pr_base = buf;
837c478bdstevel@tonic-gate	p->p_prof.pr_size = nsamples;
847c478bdstevel@tonic-gate	p->p_prof.pr_scale = 1;
857c478bdstevel@tonic-gate	count = p->p_prof.pr_samples;
867c478bdstevel@tonic-gate	p->p_prof.pr_samples = 0;
877c478bdstevel@tonic-gate	mutex_exit(&p->p_pflock);
887c478bdstevel@tonic-gate
897c478bdstevel@tonic-gate	mutex_enter(&p->p_lock);
907c478bdstevel@tonic-gate	set_proc_post_sys(p);	/* activate post_syscall profiling code */
917c478bdstevel@tonic-gate	mutex_exit(&p->p_lock);
927c478bdstevel@tonic-gate
937c478bdstevel@tonic-gate	return (count);
947c478bdstevel@tonic-gate}
95