/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2003-2008, Joseph Koshy
* Copyright (c) 2007 The FreeBSD Foundation
* All rights reserved.
* Copyright (c) 2018, Matthew Macy
*
* Portions of this software were developed by A. Joseph Koshy under
* sponsorship from the FreeBSD Foundation and Google, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/cpuset.h>
#include <sys/event.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/time.h>
#include <sys/ttycom.h>
#include <sys/user.h>
#include <sys/wait.h>
#include <assert.h>
#include <curses.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <kvm.h>
#include <libgen.h>
#include <limits.h>
#include <locale.h>
#include <math.h>
#include <pmc.h>
#include <pmclog.h>
#include <regex.h>
#include <signal.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#include <libpmcstat.h>
#include "cmd_pmc.h"
static struct pmcstat_stats pmcstat_stats; /* statistics */
static struct pmc_plugins plugins[] = {
{
.pl_name = "none",
},
{
.pl_name = NULL
}
};
int
pmc_util_get_pid(struct pmcstat_args *args)
{
struct pmcstat_target *pt;
assert(args->pa_flags & FLAG_HAS_COMMANDLINE);
/*
* If a command line was specified, it would be the very first
* in the list, before any other processes specified by -t.
*/
pt = SLIST_FIRST(&args->pa_targets);
return (pt->pt_pid);
}
void
pmc_util_kill_process(struct pmcstat_args *args)
{
struct pmcstat_target *pt;
assert(args->pa_flags & FLAG_HAS_COMMANDLINE);
/*
* If a command line was specified, it would be the very first
* in the list, before any other processes specified by -t.
*/
pt = SLIST_FIRST(&args->pa_targets);
assert(pt != NULL);
if (kill(pt->pt_pid, SIGINT) != 0)
err(EX_OSERR, "ERROR: cannot signal child process");
}
void
pmc_util_shutdown_logging(struct pmcstat_args *args)
{
pmcstat_shutdown_logging(args, plugins, &pmcstat_stats);
}
void
pmc_util_cleanup(struct pmcstat_args *args)
{
struct pmcstat_ev *ev;
/* release allocated PMCs. */
STAILQ_FOREACH(ev, &args->pa_events, ev_next)
if (ev->ev_pmcid != PMC_ID_INVALID) {
if (pmc_stop(ev->ev_pmcid) < 0)
err(EX_OSERR,
"ERROR: cannot stop pmc 0x%x \"%s\"",
ev->ev_pmcid, ev->ev_name);
if (pmc_release(ev->ev_pmcid) < 0)
err(EX_OSERR,
"ERROR: cannot release pmc 0x%x \"%s\"",
ev->ev_pmcid, ev->ev_name);
}
/* de-configure the log file if present. */
if (args->pa_flags & (FLAG_HAS_PIPE | FLAG_HAS_OUTPUT_LOGFILE))
(void)pmc_configure_logfile(-1);
if (args->pa_logparser) {
pmclog_close(args->pa_logparser);
args->pa_logparser = NULL;
}
pmc_util_shutdown_logging(args);
}
void
pmc_util_start_pmcs(struct pmcstat_args *args)
{
struct pmcstat_ev *ev;
STAILQ_FOREACH(ev, &args->pa_events, ev_next) {
assert(ev->ev_pmcid != PMC_ID_INVALID);
if (pmc_start(ev->ev_pmcid) < 0) {
warn("ERROR: Cannot start pmc 0x%x \"%s\"",
ev->ev_pmcid, ev->ev_name);
pmc_util_cleanup(args);
exit(EX_OSERR);
}
}
}
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