Mercurial > illumos > illumos-gate
view usr/src/uts/common/syscall/profil.c @ 13592:d4e1700ca091
2039 several declarations in uts declare functions with variable number of args even if they are not
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Richard Lowe <richlowe@richlowe.net>
author | Milan Jurik <milan.jurik@xylab.cz> |
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date | Fri, 03 Feb 2012 20:27:13 +0100 |
parents | 68f95e015346 |
children |
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/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright (c) 1998, Sun Microsystems, Inc. * All rights reserved. * Copyright 2012 Milan Jurik. All rights reserved. */ /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ /* All Rights Reserved */ #include <sys/param.h> #include <sys/types.h> #include <sys/sysmacros.h> #include <sys/systm.h> #include <sys/errno.h> #include <sys/proc.h> #include <sys/debug.h> /* * Profiling. */ int profil(unsigned short *bufbase, size_t bufsize, ulong_t pcoffset, uint_t pcscale) { struct proc *p = ttoproc(curthread); if (pcscale == 1) pcscale = 0; mutex_enter(&p->p_pflock); p->p_prof.pr_base = bufbase; p->p_prof.pr_size = bufsize; p->p_prof.pr_off = pcoffset; p->p_prof.pr_scale = pcscale; /* pcsample and profil are mutually exclusive */ p->p_prof.pr_samples = 0; mutex_exit(&p->p_pflock); mutex_enter(&p->p_lock); set_proc_post_sys(p); /* activate post_syscall profiling code */ mutex_exit(&p->p_lock); return (0); } /* * PC Sampling */ long pcsample(void *buf, long nsamples) { struct proc *p = ttoproc(curthread); long count = 0; if (nsamples < 0 || ((get_udatamodel() != DATAMODEL_NATIVE) && (nsamples > INT32_MAX))) return (set_errno(EINVAL)); mutex_enter(&p->p_pflock); p->p_prof.pr_base = buf; p->p_prof.pr_size = nsamples; p->p_prof.pr_scale = 1; count = p->p_prof.pr_samples; p->p_prof.pr_samples = 0; mutex_exit(&p->p_pflock); mutex_enter(&p->p_lock); set_proc_post_sys(p); /* activate post_syscall profiling code */ mutex_exit(&p->p_lock); return (count); }