17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate * with the License.
87c478bd9Sstevel@tonic-gate *
97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate * and limitations under the License.
137c478bd9Sstevel@tonic-gate *
147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate *
207c478bd9Sstevel@tonic-gate * CDDL HEADER END
217c478bd9Sstevel@tonic-gate */
227c478bd9Sstevel@tonic-gate /*
237c478bd9Sstevel@tonic-gate * Copyright (c) 1998, Sun Microsystems, Inc.
247c478bd9Sstevel@tonic-gate * All rights reserved.
25*b97d6ca7SMilan Jurik * Copyright 2012 Milan Jurik. All rights reserved.
267c478bd9Sstevel@tonic-gate */
277c478bd9Sstevel@tonic-gate
287c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
297c478bd9Sstevel@tonic-gate /* All Rights Reserved */
307c478bd9Sstevel@tonic-gate
317c478bd9Sstevel@tonic-gate #include <sys/param.h>
327c478bd9Sstevel@tonic-gate #include <sys/types.h>
337c478bd9Sstevel@tonic-gate #include <sys/sysmacros.h>
347c478bd9Sstevel@tonic-gate #include <sys/systm.h>
357c478bd9Sstevel@tonic-gate #include <sys/errno.h>
367c478bd9Sstevel@tonic-gate #include <sys/proc.h>
377c478bd9Sstevel@tonic-gate #include <sys/debug.h>
387c478bd9Sstevel@tonic-gate
397c478bd9Sstevel@tonic-gate /*
407c478bd9Sstevel@tonic-gate * Profiling.
417c478bd9Sstevel@tonic-gate */
427c478bd9Sstevel@tonic-gate int
profil(unsigned short * bufbase,size_t bufsize,ulong_t pcoffset,uint_t pcscale)43*b97d6ca7SMilan Jurik profil(unsigned short *bufbase, size_t bufsize, ulong_t pcoffset,
44*b97d6ca7SMilan Jurik uint_t pcscale)
457c478bd9Sstevel@tonic-gate {
467c478bd9Sstevel@tonic-gate struct proc *p = ttoproc(curthread);
477c478bd9Sstevel@tonic-gate
487c478bd9Sstevel@tonic-gate if (pcscale == 1)
497c478bd9Sstevel@tonic-gate pcscale = 0;
507c478bd9Sstevel@tonic-gate
517c478bd9Sstevel@tonic-gate mutex_enter(&p->p_pflock);
527c478bd9Sstevel@tonic-gate p->p_prof.pr_base = bufbase;
537c478bd9Sstevel@tonic-gate p->p_prof.pr_size = bufsize;
547c478bd9Sstevel@tonic-gate p->p_prof.pr_off = pcoffset;
557c478bd9Sstevel@tonic-gate p->p_prof.pr_scale = pcscale;
567c478bd9Sstevel@tonic-gate
577c478bd9Sstevel@tonic-gate /* pcsample and profil are mutually exclusive */
587c478bd9Sstevel@tonic-gate p->p_prof.pr_samples = 0;
597c478bd9Sstevel@tonic-gate
607c478bd9Sstevel@tonic-gate mutex_exit(&p->p_pflock);
617c478bd9Sstevel@tonic-gate mutex_enter(&p->p_lock);
627c478bd9Sstevel@tonic-gate set_proc_post_sys(p); /* activate post_syscall profiling code */
637c478bd9Sstevel@tonic-gate mutex_exit(&p->p_lock);
647c478bd9Sstevel@tonic-gate return (0);
657c478bd9Sstevel@tonic-gate }
667c478bd9Sstevel@tonic-gate
677c478bd9Sstevel@tonic-gate
687c478bd9Sstevel@tonic-gate /*
697c478bd9Sstevel@tonic-gate * PC Sampling
707c478bd9Sstevel@tonic-gate */
717c478bd9Sstevel@tonic-gate long
pcsample(void * buf,long nsamples)727c478bd9Sstevel@tonic-gate pcsample(void *buf, long nsamples)
737c478bd9Sstevel@tonic-gate {
747c478bd9Sstevel@tonic-gate struct proc *p = ttoproc(curthread);
757c478bd9Sstevel@tonic-gate long count = 0;
767c478bd9Sstevel@tonic-gate
777c478bd9Sstevel@tonic-gate if (nsamples < 0 ||
787c478bd9Sstevel@tonic-gate ((get_udatamodel() != DATAMODEL_NATIVE) && (nsamples > INT32_MAX)))
797c478bd9Sstevel@tonic-gate return (set_errno(EINVAL));
807c478bd9Sstevel@tonic-gate
817c478bd9Sstevel@tonic-gate mutex_enter(&p->p_pflock);
827c478bd9Sstevel@tonic-gate p->p_prof.pr_base = buf;
837c478bd9Sstevel@tonic-gate p->p_prof.pr_size = nsamples;
847c478bd9Sstevel@tonic-gate p->p_prof.pr_scale = 1;
857c478bd9Sstevel@tonic-gate count = p->p_prof.pr_samples;
867c478bd9Sstevel@tonic-gate p->p_prof.pr_samples = 0;
877c478bd9Sstevel@tonic-gate mutex_exit(&p->p_pflock);
887c478bd9Sstevel@tonic-gate
897c478bd9Sstevel@tonic-gate mutex_enter(&p->p_lock);
907c478bd9Sstevel@tonic-gate set_proc_post_sys(p); /* activate post_syscall profiling code */
917c478bd9Sstevel@tonic-gate mutex_exit(&p->p_lock);
927c478bd9Sstevel@tonic-gate
937c478bd9Sstevel@tonic-gate return (count);
947c478bd9Sstevel@tonic-gate }
95