1ebccf1e3SJoseph Koshy /*- 21de7b4b8SPedro F. Giffuni * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 31de7b4b8SPedro F. Giffuni * 4165b10b0SJoseph Koshy * Copyright (c) 2003-2008, Joseph Koshy 5b6010f9eSJoseph Koshy * Copyright (c) 2007 The FreeBSD Foundation 6ebccf1e3SJoseph Koshy * All rights reserved. 7ebccf1e3SJoseph Koshy * 8b6010f9eSJoseph Koshy * Portions of this software were developed by A. Joseph Koshy under 9b6010f9eSJoseph Koshy * sponsorship from the FreeBSD Foundation and Google, Inc. 10b6010f9eSJoseph Koshy * 11ebccf1e3SJoseph Koshy * Redistribution and use in source and binary forms, with or without 12ebccf1e3SJoseph Koshy * modification, are permitted provided that the following conditions 13ebccf1e3SJoseph Koshy * are met: 14ebccf1e3SJoseph Koshy * 1. Redistributions of source code must retain the above copyright 15ebccf1e3SJoseph Koshy * notice, this list of conditions and the following disclaimer. 16ebccf1e3SJoseph Koshy * 2. Redistributions in binary form must reproduce the above copyright 17ebccf1e3SJoseph Koshy * notice, this list of conditions and the following disclaimer in the 18ebccf1e3SJoseph Koshy * documentation and/or other materials provided with the distribution. 19ebccf1e3SJoseph Koshy * 20ebccf1e3SJoseph Koshy * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21ebccf1e3SJoseph Koshy * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22ebccf1e3SJoseph Koshy * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23ebccf1e3SJoseph Koshy * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24ebccf1e3SJoseph Koshy * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25ebccf1e3SJoseph Koshy * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26ebccf1e3SJoseph Koshy * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27ebccf1e3SJoseph Koshy * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28ebccf1e3SJoseph Koshy * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29ebccf1e3SJoseph Koshy * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30ebccf1e3SJoseph Koshy * SUCH DAMAGE. 31ebccf1e3SJoseph Koshy */ 32ebccf1e3SJoseph Koshy 33ebccf1e3SJoseph Koshy #include <sys/cdefs.h> 34ebccf1e3SJoseph Koshy __FBSDID("$FreeBSD$"); 35ebccf1e3SJoseph Koshy 36fbd8b34aSJoseph Koshy #include <sys/param.h> 37ea056888SAttilio Rao #include <sys/cpuset.h> 38ea056888SAttilio Rao #include <sys/event.h> 39ebccf1e3SJoseph Koshy #include <sys/queue.h> 4015139246SJoseph Koshy #include <sys/socket.h> 4115139246SJoseph Koshy #include <sys/stat.h> 42ee4910b1SJoseph Koshy #include <sys/sysctl.h> 43ebccf1e3SJoseph Koshy #include <sys/time.h> 44ebccf1e3SJoseph Koshy #include <sys/ttycom.h> 45fbd8b34aSJoseph Koshy #include <sys/user.h> 46ebccf1e3SJoseph Koshy #include <sys/wait.h> 47ebccf1e3SJoseph Koshy 48ebccf1e3SJoseph Koshy #include <assert.h> 490b86b1bbSFabien Thomas #include <curses.h> 50ebccf1e3SJoseph Koshy #include <err.h> 51ebccf1e3SJoseph Koshy #include <errno.h> 52ebccf1e3SJoseph Koshy #include <fcntl.h> 53fbd8b34aSJoseph Koshy #include <kvm.h> 5449874f6eSJoseph Koshy #include <libgen.h> 55ebccf1e3SJoseph Koshy #include <limits.h> 56ebccf1e3SJoseph Koshy #include <math.h> 57ebccf1e3SJoseph Koshy #include <pmc.h> 58f263522aSJoseph Koshy #include <pmclog.h> 59fbd8b34aSJoseph Koshy #include <regex.h> 60ebccf1e3SJoseph Koshy #include <signal.h> 61ebccf1e3SJoseph Koshy #include <stdarg.h> 62ebccf1e3SJoseph Koshy #include <stdint.h> 6315139246SJoseph Koshy #include <stdio.h> 64ebccf1e3SJoseph Koshy #include <stdlib.h> 65ebccf1e3SJoseph Koshy #include <string.h> 66ebccf1e3SJoseph Koshy #include <sysexits.h> 67ebccf1e3SJoseph Koshy #include <unistd.h> 68ebccf1e3SJoseph Koshy 69d27927f7SRuslan Bukin #include <libpmcstat.h> 70d27927f7SRuslan Bukin 7115139246SJoseph Koshy #include "pmcstat.h" 7215139246SJoseph Koshy 73f263522aSJoseph Koshy /* 74f263522aSJoseph Koshy * A given invocation of pmcstat(8) can manage multiple PMCs of both 75f263522aSJoseph Koshy * the system-wide and per-process variety. Each of these could be in 76f263522aSJoseph Koshy * 'counting mode' or in 'sampling mode'. 77f263522aSJoseph Koshy * 78f263522aSJoseph Koshy * For 'counting mode' PMCs, pmcstat(8) will periodically issue a 79f263522aSJoseph Koshy * pmc_read() at the configured time interval and print out the value 80f263522aSJoseph Koshy * of the requested PMCs. 81f263522aSJoseph Koshy * 82f263522aSJoseph Koshy * For 'sampling mode' PMCs it can log to a file for offline analysis, 83f263522aSJoseph Koshy * or can analyse sampling data "on the fly", either by converting 84f263522aSJoseph Koshy * samples to printed textual form or by creating gprof(1) compatible 85f263522aSJoseph Koshy * profiles, one per program executed. When creating gprof(1) 86f263522aSJoseph Koshy * profiles it can optionally merge entries from multiple processes 87f263522aSJoseph Koshy * for a given executable into a single profile file. 88ee4910b1SJoseph Koshy * 89ee4910b1SJoseph Koshy * pmcstat(8) can also execute a command line and attach PMCs to the 90ee4910b1SJoseph Koshy * resulting child process. The protocol used is as follows: 91ee4910b1SJoseph Koshy * 92ee4910b1SJoseph Koshy * - parent creates a socketpair for two way communication and 93ee4910b1SJoseph Koshy * fork()s. 94ee4910b1SJoseph Koshy * - subsequently: 95ee4910b1SJoseph Koshy * 96ee4910b1SJoseph Koshy * /Parent/ /Child/ 97ee4910b1SJoseph Koshy * 98ee4910b1SJoseph Koshy * - Wait for childs token. 99ee4910b1SJoseph Koshy * - Sends token. 100ee4910b1SJoseph Koshy * - Awaits signal to start. 101ee4910b1SJoseph Koshy * - Attaches PMCs to the child's pid 102ee4910b1SJoseph Koshy * and starts them. Sets up 103ee4910b1SJoseph Koshy * monitoring for the child. 104ee4910b1SJoseph Koshy * - Signals child to start. 1053df5ecacSUlrich Spörlein * - Receives signal, attempts exec(). 106ee4910b1SJoseph Koshy * 107ee4910b1SJoseph Koshy * After this point normal processing can happen. 108f263522aSJoseph Koshy */ 109f263522aSJoseph Koshy 11015139246SJoseph Koshy /* Globals */ 111ebccf1e3SJoseph Koshy 112ebccf1e3SJoseph Koshy int pmcstat_displayheight = DEFAULT_DISPLAY_HEIGHT; 1130b86b1bbSFabien Thomas int pmcstat_displaywidth = DEFAULT_DISPLAY_WIDTH; 114bf70beceSEd Schouten static int pmcstat_sockpair[NSOCKPAIRFD]; 115bf70beceSEd Schouten static int pmcstat_kq; 116bf70beceSEd Schouten static kvm_t *pmcstat_kvm; 117bf70beceSEd Schouten static struct kinfo_proc *pmcstat_plist; 1180b86b1bbSFabien Thomas struct pmcstat_args args; 119ebccf1e3SJoseph Koshy 120ea056888SAttilio Rao static void 121ea056888SAttilio Rao pmcstat_get_cpumask(const char *cpuspec, cpuset_t *cpumask) 122ea056888SAttilio Rao { 123ea056888SAttilio Rao int cpu; 124ea056888SAttilio Rao const char *s; 125ea056888SAttilio Rao char *end; 126ea056888SAttilio Rao 127ea056888SAttilio Rao CPU_ZERO(cpumask); 128ea056888SAttilio Rao s = cpuspec; 129ea056888SAttilio Rao 130ea056888SAttilio Rao do { 131ea056888SAttilio Rao cpu = strtol(s, &end, 0); 132ea056888SAttilio Rao if (cpu < 0 || end == s) 13337d6f8a9SDavid E. O'Brien errx(EX_USAGE, 13437d6f8a9SDavid E. O'Brien "ERROR: Illegal CPU specification \"%s\".", 13537d6f8a9SDavid E. O'Brien cpuspec); 136ea056888SAttilio Rao CPU_SET(cpu, cpumask); 137ea056888SAttilio Rao s = end + strspn(end, ", \t"); 138ea056888SAttilio Rao } while (*s); 139ef16b9abSJohn Baldwin assert(!CPU_EMPTY(cpumask)); 140ea056888SAttilio Rao } 141ea056888SAttilio Rao 142ee4910b1SJoseph Koshy void 1430b86b1bbSFabien Thomas pmcstat_cleanup(void) 144ebccf1e3SJoseph Koshy { 1453ad36a25SStephen J. Kiernan struct pmcstat_ev *ev; 146ebccf1e3SJoseph Koshy 147ebccf1e3SJoseph Koshy /* release allocated PMCs. */ 1483ad36a25SStephen J. Kiernan STAILQ_FOREACH(ev, &args.pa_events, ev_next) 149ebccf1e3SJoseph Koshy if (ev->ev_pmcid != PMC_ID_INVALID) { 150b8fbd97bSJoseph Koshy if (pmc_stop(ev->ev_pmcid) < 0) 1513ad36a25SStephen J. Kiernan err(EX_OSERR, 1523ad36a25SStephen J. Kiernan "ERROR: cannot stop pmc 0x%x \"%s\"", 15337d6f8a9SDavid E. O'Brien ev->ev_pmcid, ev->ev_name); 154ebccf1e3SJoseph Koshy if (pmc_release(ev->ev_pmcid) < 0) 1553ad36a25SStephen J. Kiernan err(EX_OSERR, 1563ad36a25SStephen J. Kiernan "ERROR: cannot release pmc 0x%x \"%s\"", 15737d6f8a9SDavid E. O'Brien ev->ev_pmcid, ev->ev_name); 158ebccf1e3SJoseph Koshy } 159f263522aSJoseph Koshy 160dc1d9d2eSJoseph Koshy /* de-configure the log file if present. */ 1610b86b1bbSFabien Thomas if (args.pa_flags & (FLAG_HAS_PIPE | FLAG_HAS_OUTPUT_LOGFILE)) 162dc1d9d2eSJoseph Koshy (void) pmc_configure_logfile(-1); 163dc1d9d2eSJoseph Koshy 1640b86b1bbSFabien Thomas if (args.pa_logparser) { 1650b86b1bbSFabien Thomas pmclog_close(args.pa_logparser); 1660b86b1bbSFabien Thomas args.pa_logparser = NULL; 167f263522aSJoseph Koshy } 16815139246SJoseph Koshy 169d27927f7SRuslan Bukin pmcstat_log_shutdown_logging(); 170ee4910b1SJoseph Koshy } 171ee4910b1SJoseph Koshy 172fbd8b34aSJoseph Koshy void 1730b86b1bbSFabien Thomas pmcstat_find_targets(const char *spec) 174fbd8b34aSJoseph Koshy { 175fbd8b34aSJoseph Koshy int n, nproc, pid, rv; 176fbd8b34aSJoseph Koshy struct pmcstat_target *pt; 177fbd8b34aSJoseph Koshy char errbuf[_POSIX2_LINE_MAX], *end; 178fbd8b34aSJoseph Koshy static struct kinfo_proc *kp; 179fbd8b34aSJoseph Koshy regex_t reg; 180fbd8b34aSJoseph Koshy regmatch_t regmatch; 181fbd8b34aSJoseph Koshy 182fbd8b34aSJoseph Koshy /* First check if we've been given a process id. */ 183fbd8b34aSJoseph Koshy pid = strtol(spec, &end, 0); 184fbd8b34aSJoseph Koshy if (end != spec && pid >= 0) { 185fbd8b34aSJoseph Koshy if ((pt = malloc(sizeof(*pt))) == NULL) 186fbd8b34aSJoseph Koshy goto outofmemory; 187fbd8b34aSJoseph Koshy pt->pt_pid = pid; 1880b86b1bbSFabien Thomas SLIST_INSERT_HEAD(&args.pa_targets, pt, pt_next); 189fbd8b34aSJoseph Koshy return; 190fbd8b34aSJoseph Koshy } 191fbd8b34aSJoseph Koshy 192fbd8b34aSJoseph Koshy /* Otherwise treat arg as a regular expression naming processes. */ 193fbd8b34aSJoseph Koshy if (pmcstat_kvm == NULL) { 194fbd8b34aSJoseph Koshy if ((pmcstat_kvm = kvm_openfiles(NULL, "/dev/null", NULL, 0, 195fbd8b34aSJoseph Koshy errbuf)) == NULL) 196fbd8b34aSJoseph Koshy err(EX_OSERR, "ERROR: Cannot open kernel \"%s\"", 197fbd8b34aSJoseph Koshy errbuf); 198fbd8b34aSJoseph Koshy if ((pmcstat_plist = kvm_getprocs(pmcstat_kvm, KERN_PROC_PROC, 199fbd8b34aSJoseph Koshy 0, &nproc)) == NULL) 200fbd8b34aSJoseph Koshy err(EX_OSERR, "ERROR: Cannot get process list: %s", 201fbd8b34aSJoseph Koshy kvm_geterr(pmcstat_kvm)); 2025c15d3c8SFabien Thomas } else 2035c15d3c8SFabien Thomas nproc = 0; 204fbd8b34aSJoseph Koshy 205fbd8b34aSJoseph Koshy if ((rv = regcomp(®, spec, REG_EXTENDED|REG_NOSUB)) != 0) { 206fbd8b34aSJoseph Koshy regerror(rv, ®, errbuf, sizeof(errbuf)); 207fbd8b34aSJoseph Koshy err(EX_DATAERR, "ERROR: Failed to compile regex \"%s\": %s", 208fbd8b34aSJoseph Koshy spec, errbuf); 209fbd8b34aSJoseph Koshy } 210fbd8b34aSJoseph Koshy 211fbd8b34aSJoseph Koshy for (n = 0, kp = pmcstat_plist; n < nproc; n++, kp++) { 212fbd8b34aSJoseph Koshy if ((rv = regexec(®, kp->ki_comm, 1, ®match, 0)) == 0) { 213fbd8b34aSJoseph Koshy if ((pt = malloc(sizeof(*pt))) == NULL) 214fbd8b34aSJoseph Koshy goto outofmemory; 215fbd8b34aSJoseph Koshy pt->pt_pid = kp->ki_pid; 2160b86b1bbSFabien Thomas SLIST_INSERT_HEAD(&args.pa_targets, pt, pt_next); 217fbd8b34aSJoseph Koshy } else if (rv != REG_NOMATCH) { 218fbd8b34aSJoseph Koshy regerror(rv, ®, errbuf, sizeof(errbuf)); 219fbd8b34aSJoseph Koshy errx(EX_SOFTWARE, "ERROR: Regex evalation failed: %s", 220fbd8b34aSJoseph Koshy errbuf); 221fbd8b34aSJoseph Koshy } 222fbd8b34aSJoseph Koshy } 223fbd8b34aSJoseph Koshy 224fbd8b34aSJoseph Koshy regfree(®); 225fbd8b34aSJoseph Koshy 226fbd8b34aSJoseph Koshy return; 227fbd8b34aSJoseph Koshy 228fbd8b34aSJoseph Koshy outofmemory: 229fbd8b34aSJoseph Koshy errx(EX_SOFTWARE, "Out of memory."); 230fbd8b34aSJoseph Koshy /*NOTREACHED*/ 231fbd8b34aSJoseph Koshy } 232fbd8b34aSJoseph Koshy 233ee4910b1SJoseph Koshy void 2340b86b1bbSFabien Thomas pmcstat_kill_process(void) 235fbd8b34aSJoseph Koshy { 236fbd8b34aSJoseph Koshy struct pmcstat_target *pt; 237fbd8b34aSJoseph Koshy 2380b86b1bbSFabien Thomas assert(args.pa_flags & FLAG_HAS_COMMANDLINE); 239fbd8b34aSJoseph Koshy 240fbd8b34aSJoseph Koshy /* 241fbd8b34aSJoseph Koshy * If a command line was specified, it would be the very first 242fbd8b34aSJoseph Koshy * in the list, before any other processes specified by -t. 243fbd8b34aSJoseph Koshy */ 2440b86b1bbSFabien Thomas pt = SLIST_FIRST(&args.pa_targets); 245fbd8b34aSJoseph Koshy assert(pt != NULL); 246fbd8b34aSJoseph Koshy 247fbd8b34aSJoseph Koshy if (kill(pt->pt_pid, SIGINT) != 0) 248fbd8b34aSJoseph Koshy err(EX_OSERR, "ERROR: cannot signal child process"); 249fbd8b34aSJoseph Koshy } 250fbd8b34aSJoseph Koshy 251fbd8b34aSJoseph Koshy void 2520b86b1bbSFabien Thomas pmcstat_start_pmcs(void) 253ebccf1e3SJoseph Koshy { 254ebccf1e3SJoseph Koshy struct pmcstat_ev *ev; 255ebccf1e3SJoseph Koshy 256fbd8b34aSJoseph Koshy STAILQ_FOREACH(ev, &args.pa_events, ev_next) { 257ebccf1e3SJoseph Koshy 258ebccf1e3SJoseph Koshy assert(ev->ev_pmcid != PMC_ID_INVALID); 259ebccf1e3SJoseph Koshy 260ebccf1e3SJoseph Koshy if (pmc_start(ev->ev_pmcid) < 0) { 261f263522aSJoseph Koshy warn("ERROR: Cannot start pmc 0x%x \"%s\"", 262ebccf1e3SJoseph Koshy ev->ev_pmcid, ev->ev_name); 2630b86b1bbSFabien Thomas pmcstat_cleanup(); 264f263522aSJoseph Koshy exit(EX_OSERR); 265ebccf1e3SJoseph Koshy } 266ebccf1e3SJoseph Koshy } 267ebccf1e3SJoseph Koshy } 268ebccf1e3SJoseph Koshy 269ebccf1e3SJoseph Koshy void 2700b86b1bbSFabien Thomas pmcstat_print_headers(void) 271ebccf1e3SJoseph Koshy { 272ebccf1e3SJoseph Koshy struct pmcstat_ev *ev; 273ee4910b1SJoseph Koshy int c, w; 274ebccf1e3SJoseph Koshy 2750b86b1bbSFabien Thomas (void) fprintf(args.pa_printfile, PRINT_HEADER_PREFIX); 276ebccf1e3SJoseph Koshy 2770b86b1bbSFabien Thomas STAILQ_FOREACH(ev, &args.pa_events, ev_next) { 278ebccf1e3SJoseph Koshy if (PMC_IS_SAMPLING_MODE(ev->ev_mode)) 279ebccf1e3SJoseph Koshy continue; 280ebccf1e3SJoseph Koshy 281ebccf1e3SJoseph Koshy c = PMC_IS_SYSTEM_MODE(ev->ev_mode) ? 's' : 'p'; 282ebccf1e3SJoseph Koshy 283ee4910b1SJoseph Koshy if (ev->ev_fieldskip != 0) 2840b86b1bbSFabien Thomas (void) fprintf(args.pa_printfile, "%*s", 285ee4910b1SJoseph Koshy ev->ev_fieldskip, ""); 286ee4910b1SJoseph Koshy w = ev->ev_fieldwidth - ev->ev_fieldskip - 2; 287ee4910b1SJoseph Koshy 288ee4910b1SJoseph Koshy if (c == 's') 2890b86b1bbSFabien Thomas (void) fprintf(args.pa_printfile, "s/%02d/%-*s ", 290ee4910b1SJoseph Koshy ev->ev_cpu, w-3, ev->ev_name); 291ee4910b1SJoseph Koshy else 2920b86b1bbSFabien Thomas (void) fprintf(args.pa_printfile, "p/%*s ", w, 293ebccf1e3SJoseph Koshy ev->ev_name); 294ebccf1e3SJoseph Koshy } 295ebccf1e3SJoseph Koshy 2960b86b1bbSFabien Thomas (void) fflush(args.pa_printfile); 297ebccf1e3SJoseph Koshy } 298ebccf1e3SJoseph Koshy 299ebccf1e3SJoseph Koshy void 3000b86b1bbSFabien Thomas pmcstat_print_counters(void) 301ebccf1e3SJoseph Koshy { 302ebccf1e3SJoseph Koshy int extra_width; 303ebccf1e3SJoseph Koshy struct pmcstat_ev *ev; 304ebccf1e3SJoseph Koshy pmc_value_t value; 305ebccf1e3SJoseph Koshy 306ebccf1e3SJoseph Koshy extra_width = sizeof(PRINT_HEADER_PREFIX) - 1; 307ebccf1e3SJoseph Koshy 3080b86b1bbSFabien Thomas STAILQ_FOREACH(ev, &args.pa_events, ev_next) { 309ebccf1e3SJoseph Koshy 310ebccf1e3SJoseph Koshy /* skip sampling mode counters */ 311ebccf1e3SJoseph Koshy if (PMC_IS_SAMPLING_MODE(ev->ev_mode)) 312ebccf1e3SJoseph Koshy continue; 313ebccf1e3SJoseph Koshy 314ebccf1e3SJoseph Koshy if (pmc_read(ev->ev_pmcid, &value) < 0) 31537d6f8a9SDavid E. O'Brien err(EX_OSERR, "ERROR: Cannot read pmc \"%s\"", 31637d6f8a9SDavid E. O'Brien ev->ev_name); 317ebccf1e3SJoseph Koshy 3180b86b1bbSFabien Thomas (void) fprintf(args.pa_printfile, "%*ju ", 31915139246SJoseph Koshy ev->ev_fieldwidth + extra_width, 32015139246SJoseph Koshy (uintmax_t) ev->ev_cumulative ? value : 32115139246SJoseph Koshy (value - ev->ev_saved)); 32215139246SJoseph Koshy 323ebccf1e3SJoseph Koshy if (ev->ev_cumulative == 0) 324ebccf1e3SJoseph Koshy ev->ev_saved = value; 325ebccf1e3SJoseph Koshy extra_width = 0; 326ebccf1e3SJoseph Koshy } 327ebccf1e3SJoseph Koshy 3280b86b1bbSFabien Thomas (void) fflush(args.pa_printfile); 329ebccf1e3SJoseph Koshy } 330ebccf1e3SJoseph Koshy 331ebccf1e3SJoseph Koshy /* 332ebccf1e3SJoseph Koshy * Print output 333ebccf1e3SJoseph Koshy */ 334ebccf1e3SJoseph Koshy 335ebccf1e3SJoseph Koshy void 3360b86b1bbSFabien Thomas pmcstat_print_pmcs(void) 337ebccf1e3SJoseph Koshy { 338ebccf1e3SJoseph Koshy static int linecount = 0; 339ebccf1e3SJoseph Koshy 34015139246SJoseph Koshy /* check if we need to print a header line */ 341ebccf1e3SJoseph Koshy if (++linecount > pmcstat_displayheight) { 3420b86b1bbSFabien Thomas (void) fprintf(args.pa_printfile, "\n"); 343ebccf1e3SJoseph Koshy linecount = 1; 344ebccf1e3SJoseph Koshy } 345ebccf1e3SJoseph Koshy if (linecount == 1) 3460b86b1bbSFabien Thomas pmcstat_print_headers(); 3470b86b1bbSFabien Thomas (void) fprintf(args.pa_printfile, "\n"); 348ebccf1e3SJoseph Koshy 3490b86b1bbSFabien Thomas pmcstat_print_counters(); 350ebccf1e3SJoseph Koshy 351ebccf1e3SJoseph Koshy return; 352ebccf1e3SJoseph Koshy } 353ebccf1e3SJoseph Koshy 354ebccf1e3SJoseph Koshy void 355ebccf1e3SJoseph Koshy pmcstat_show_usage(void) 356ebccf1e3SJoseph Koshy { 357ebccf1e3SJoseph Koshy errx(EX_USAGE, 358ebccf1e3SJoseph Koshy "[options] [commandline]\n" 359ebccf1e3SJoseph Koshy "\t Measure process and/or system performance using hardware\n" 360ebccf1e3SJoseph Koshy "\t performance monitoring counters.\n" 361ebccf1e3SJoseph Koshy "\t Options include:\n" 362f263522aSJoseph Koshy "\t -C\t\t (toggle) show cumulative counts\n" 363f263522aSJoseph Koshy "\t -D path\t create profiles in directory \"path\"\n" 364f263522aSJoseph Koshy "\t -E\t\t (toggle) show counts at process exit\n" 3650b86b1bbSFabien Thomas "\t -F file\t write a system-wide callgraph (Kcachegrind format)" 3660b86b1bbSFabien Thomas " to \"file\"\n" 367b6010f9eSJoseph Koshy "\t -G file\t write a system-wide callgraph to \"file\"\n" 36849874f6eSJoseph Koshy "\t -M file\t print executable/gmon file map to \"file\"\n" 369b6010f9eSJoseph Koshy "\t -N\t\t (toggle) capture callchains\n" 370f263522aSJoseph Koshy "\t -O file\t send log output to \"file\"\n" 371f263522aSJoseph Koshy "\t -P spec\t allocate a process-private sampling PMC\n" 372f263522aSJoseph Koshy "\t -R file\t read events from \"file\"\n" 373f263522aSJoseph Koshy "\t -S spec\t allocate a system-wide sampling PMC\n" 3740b86b1bbSFabien Thomas "\t -T\t\t start in top mode\n" 375f263522aSJoseph Koshy "\t -W\t\t (toggle) show counts per context switch\n" 3765ae1451dSScott Long "\t -a file\t print sampled PCs and callgraph to \"file\"\n" 377ee4910b1SJoseph Koshy "\t -c cpu-list\t set cpus for subsequent system-wide PMCs\n" 378f263522aSJoseph Koshy "\t -d\t\t (toggle) track descendants\n" 379465dadb5SJonathan T. Looney "\t -e\t\t use wide history counter for gprof(1) output\n" 3800b86b1bbSFabien Thomas "\t -f spec\t pass \"spec\" to as plugin option\n" 381f263522aSJoseph Koshy "\t -g\t\t produce gprof(1) compatible profiles\n" 38224bffe06SRuslan Ermilov "\t -k dir\t\t set the path to the kernel\n" 38372fe532cSGeorge V. Neville-Neil "\t -l secs\t set duration time\n" 38433b12a85SJim Harris "\t -m file\t print sampled PCs to \"file\"\n" 385ebccf1e3SJoseph Koshy "\t -n rate\t set sampling rate\n" 386ebccf1e3SJoseph Koshy "\t -o file\t send print output to \"file\"\n" 387f263522aSJoseph Koshy "\t -p spec\t allocate a process-private counting PMC\n" 38849874f6eSJoseph Koshy "\t -q\t\t suppress verbosity\n" 38949874f6eSJoseph Koshy "\t -r fsroot\t specify FS root directory\n" 390f263522aSJoseph Koshy "\t -s spec\t allocate a system-wide counting PMC\n" 39167442c6eSJoseph Koshy "\t -t process-spec attach to running processes matching " 39267442c6eSJoseph Koshy "\"process-spec\"\n" 39349874f6eSJoseph Koshy "\t -v\t\t increase verbosity\n" 394b6010f9eSJoseph Koshy "\t -w secs\t set printing time interval\n" 395b6010f9eSJoseph Koshy "\t -z depth\t limit callchain display depth" 396ebccf1e3SJoseph Koshy ); 397ebccf1e3SJoseph Koshy } 398ebccf1e3SJoseph Koshy 399ebccf1e3SJoseph Koshy /* 4000b86b1bbSFabien Thomas * At exit handler for top mode 4010b86b1bbSFabien Thomas */ 4020b86b1bbSFabien Thomas 4030b86b1bbSFabien Thomas void 4040b86b1bbSFabien Thomas pmcstat_topexit(void) 4050b86b1bbSFabien Thomas { 4060b86b1bbSFabien Thomas if (!args.pa_toptty) 4070b86b1bbSFabien Thomas return; 4080b86b1bbSFabien Thomas 4090b86b1bbSFabien Thomas /* 4100b86b1bbSFabien Thomas * Shutdown ncurses. 4110b86b1bbSFabien Thomas */ 4120b86b1bbSFabien Thomas clrtoeol(); 4130b86b1bbSFabien Thomas refresh(); 4140b86b1bbSFabien Thomas endwin(); 4150b86b1bbSFabien Thomas } 4160b86b1bbSFabien Thomas 4170b86b1bbSFabien Thomas /* 418ebccf1e3SJoseph Koshy * Main 419ebccf1e3SJoseph Koshy */ 420ebccf1e3SJoseph Koshy 421ebccf1e3SJoseph Koshy int 422ebccf1e3SJoseph Koshy main(int argc, char **argv) 423ebccf1e3SJoseph Koshy { 424ef16b9abSJohn Baldwin cpuset_t cpumask, rootmask; 425ebccf1e3SJoseph Koshy double interval; 42672fe532cSGeorge V. Neville-Neil double duration; 427ef16b9abSJohn Baldwin int option, npmc; 428*357405d9SMatt Macy int c, check_driver_stats; 429b6010f9eSJoseph Koshy int do_callchain, do_descendants, do_logproccsw, do_logprocexit; 430dceed24aSFabien Thomas int do_print, do_read; 43138fd3834SJohn Baldwin size_t len; 432b6010f9eSJoseph Koshy int graphdepth; 433ac708fddSFabien Thomas int pipefd[2], rfd; 434f263522aSJoseph Koshy int use_cumulative_counts; 4350b86b1bbSFabien Thomas short cf, cb; 436*357405d9SMatt Macy uint64_t current_sampling_count; 43749874f6eSJoseph Koshy char *end, *tmp; 438b6010f9eSJoseph Koshy const char *errmsg, *graphfilename; 439f263522aSJoseph Koshy enum pmcstat_state runstate; 4407fbf3da2SJoseph Koshy struct pmc_driverstats ds_start, ds_end; 441ebccf1e3SJoseph Koshy struct pmcstat_ev *ev; 442ebccf1e3SJoseph Koshy struct sigaction sa; 443ebccf1e3SJoseph Koshy struct kevent kev; 444ebccf1e3SJoseph Koshy struct winsize ws; 44515139246SJoseph Koshy struct stat sb; 44649874f6eSJoseph Koshy char buffer[PATH_MAX]; 447ebccf1e3SJoseph Koshy 4487fbf3da2SJoseph Koshy check_driver_stats = 0; 449e98bbcf9SMatt Macy current_sampling_count = 0; 450b6010f9eSJoseph Koshy do_callchain = 1; 451ebccf1e3SJoseph Koshy do_descendants = 0; 452f263522aSJoseph Koshy do_logproccsw = 0; 453f263522aSJoseph Koshy do_logprocexit = 0; 454ebccf1e3SJoseph Koshy use_cumulative_counts = 0; 455b6010f9eSJoseph Koshy graphfilename = "-"; 456f263522aSJoseph Koshy args.pa_required = 0; 457ebccf1e3SJoseph Koshy args.pa_flags = 0; 45849874f6eSJoseph Koshy args.pa_verbosity = 1; 45915139246SJoseph Koshy args.pa_logfd = -1; 46049874f6eSJoseph Koshy args.pa_fsroot = ""; 46115139246SJoseph Koshy args.pa_samplesdir = "."; 46215139246SJoseph Koshy args.pa_printfile = stderr; 463b6010f9eSJoseph Koshy args.pa_graphdepth = DEFAULT_CALLGRAPH_DEPTH; 464b6010f9eSJoseph Koshy args.pa_graphfile = NULL; 465ebccf1e3SJoseph Koshy args.pa_interval = DEFAULT_WAIT_INTERVAL; 46649874f6eSJoseph Koshy args.pa_mapfilename = NULL; 467b6010f9eSJoseph Koshy args.pa_inputpath = NULL; 468b6010f9eSJoseph Koshy args.pa_outputpath = NULL; 4690b86b1bbSFabien Thomas args.pa_pplugin = PMCSTAT_PL_NONE; 4700b86b1bbSFabien Thomas args.pa_plugin = PMCSTAT_PL_NONE; 4710b86b1bbSFabien Thomas args.pa_ctdumpinstr = 1; 4720b86b1bbSFabien Thomas args.pa_topmode = PMCSTAT_TOP_DELTA; 4730b86b1bbSFabien Thomas args.pa_toptty = 0; 4740b86b1bbSFabien Thomas args.pa_topcolor = 0; 4750b86b1bbSFabien Thomas args.pa_mergepmc = 0; 47672fe532cSGeorge V. Neville-Neil args.pa_duration = 0.0; 477fbd8b34aSJoseph Koshy STAILQ_INIT(&args.pa_events); 478fbd8b34aSJoseph Koshy SLIST_INIT(&args.pa_targets); 479bea6aa93SJoseph Koshy bzero(&ds_start, sizeof(ds_start)); 480bea6aa93SJoseph Koshy bzero(&ds_end, sizeof(ds_end)); 481ebccf1e3SJoseph Koshy ev = NULL; 482ea056888SAttilio Rao CPU_ZERO(&cpumask); 483ebccf1e3SJoseph Koshy 48438fd3834SJohn Baldwin /* Default to using the running system kernel. */ 48538fd3834SJohn Baldwin len = 0; 48638fd3834SJohn Baldwin if (sysctlbyname("kern.bootfile", NULL, &len, NULL, 0) == -1) 48738fd3834SJohn Baldwin err(EX_OSERR, "ERROR: Cannot determine path of running kernel"); 4883ad36a25SStephen J. Kiernan args.pa_kernel = malloc(len); 4893ad36a25SStephen J. Kiernan if (args.pa_kernel == NULL) 4903ad36a25SStephen J. Kiernan errx(EX_SOFTWARE, "ERROR: Out of memory."); 49138fd3834SJohn Baldwin if (sysctlbyname("kern.bootfile", args.pa_kernel, &len, NULL, 0) == -1) 49238fd3834SJohn Baldwin err(EX_OSERR, "ERROR: Cannot determine path of running kernel"); 49338fd3834SJohn Baldwin 494b6010f9eSJoseph Koshy /* 495ef16b9abSJohn Baldwin * The initial CPU mask specifies the root mask of this process 496ef16b9abSJohn Baldwin * which is usually all CPUs in the system. 497b6010f9eSJoseph Koshy */ 498ef16b9abSJohn Baldwin if (cpuset_getaffinity(CPU_LEVEL_ROOT, CPU_WHICH_PID, -1, 499ef16b9abSJohn Baldwin sizeof(rootmask), &rootmask) == -1) 500ef16b9abSJohn Baldwin err(EX_OSERR, "ERROR: Cannot determine the root set of CPUs"); 501ef16b9abSJohn Baldwin CPU_COPY(&rootmask, &cpumask); 502ee4910b1SJoseph Koshy 50349874f6eSJoseph Koshy while ((option = getopt(argc, argv, 5040b5dc7f6SMatt Macy "CD:EF:G:IL:M:NO:P:R:S:TWa:c:def:gk:l:m:n:o:p:qr:s:t:vw:z:")) != -1) 505ebccf1e3SJoseph Koshy switch (option) { 50685ec49f3SAdrian Chadd case 'a': /* Annotate + callgraph */ 50785ec49f3SAdrian Chadd args.pa_flags |= FLAG_DO_ANNOTATE; 50885ec49f3SAdrian Chadd args.pa_plugin = PMCSTAT_PL_ANNOTATE_CG; 50985ec49f3SAdrian Chadd graphfilename = optarg; 51085ec49f3SAdrian Chadd break; 51185ec49f3SAdrian Chadd 512ebccf1e3SJoseph Koshy case 'C': /* cumulative values */ 513ebccf1e3SJoseph Koshy use_cumulative_counts = !use_cumulative_counts; 514f263522aSJoseph Koshy args.pa_required |= FLAG_HAS_COUNTING_PMCS; 515ebccf1e3SJoseph Koshy break; 516ebccf1e3SJoseph Koshy 517ebccf1e3SJoseph Koshy case 'c': /* CPU */ 518ef16b9abSJohn Baldwin if (optarg[0] == '*' && optarg[1] == '\0') 519ef16b9abSJohn Baldwin CPU_COPY(&rootmask, &cpumask); 520ef16b9abSJohn Baldwin else 521ea056888SAttilio Rao pmcstat_get_cpumask(optarg, &cpumask); 522ee4910b1SJoseph Koshy 523e7ef1de5SFabien Thomas args.pa_flags |= FLAGS_HAS_CPUMASK; 524f263522aSJoseph Koshy args.pa_required |= FLAG_HAS_SYSTEM_PMCS; 525ebccf1e3SJoseph Koshy break; 526ebccf1e3SJoseph Koshy 52715139246SJoseph Koshy case 'D': 52815139246SJoseph Koshy if (stat(optarg, &sb) < 0) 52915139246SJoseph Koshy err(EX_OSERR, "ERROR: Cannot stat \"%s\"", 53015139246SJoseph Koshy optarg); 53115139246SJoseph Koshy if (!S_ISDIR(sb.st_mode)) 53237d6f8a9SDavid E. O'Brien errx(EX_USAGE, 53337d6f8a9SDavid E. O'Brien "ERROR: \"%s\" is not a directory.", 53437d6f8a9SDavid E. O'Brien optarg); 53515139246SJoseph Koshy args.pa_samplesdir = optarg; 53615139246SJoseph Koshy args.pa_flags |= FLAG_HAS_SAMPLESDIR; 53715139246SJoseph Koshy args.pa_required |= FLAG_DO_GPROF; 53815139246SJoseph Koshy break; 53915139246SJoseph Koshy 540ebccf1e3SJoseph Koshy case 'd': /* toggle descendents */ 541ebccf1e3SJoseph Koshy do_descendants = !do_descendants; 542f263522aSJoseph Koshy args.pa_required |= FLAG_HAS_PROCESS_PMCS; 543f263522aSJoseph Koshy break; 544f263522aSJoseph Koshy 545465dadb5SJonathan T. Looney case 'e': /* wide gprof metrics */ 546465dadb5SJonathan T. Looney args.pa_flags |= FLAG_DO_WIDE_GPROF_HC; 547465dadb5SJonathan T. Looney break; 548465dadb5SJonathan T. Looney 5490b86b1bbSFabien Thomas case 'F': /* produce a system-wide calltree */ 5500b86b1bbSFabien Thomas args.pa_flags |= FLAG_DO_CALLGRAPHS; 5510b86b1bbSFabien Thomas args.pa_plugin = PMCSTAT_PL_CALLTREE; 5520b86b1bbSFabien Thomas graphfilename = optarg; 5530b86b1bbSFabien Thomas break; 5540b86b1bbSFabien Thomas 5550b86b1bbSFabien Thomas case 'f': /* plugins options */ 5560b86b1bbSFabien Thomas if (args.pa_plugin == PMCSTAT_PL_NONE) 5570b86b1bbSFabien Thomas err(EX_USAGE, "ERROR: Need -g/-G/-m/-T."); 5580b86b1bbSFabien Thomas pmcstat_pluginconfigure_log(optarg); 5590b86b1bbSFabien Thomas break; 5600b86b1bbSFabien Thomas 561b6010f9eSJoseph Koshy case 'G': /* produce a system-wide callgraph */ 562b6010f9eSJoseph Koshy args.pa_flags |= FLAG_DO_CALLGRAPHS; 5630b86b1bbSFabien Thomas args.pa_plugin = PMCSTAT_PL_CALLGRAPH; 564b6010f9eSJoseph Koshy graphfilename = optarg; 565b6010f9eSJoseph Koshy break; 566b6010f9eSJoseph Koshy 567f263522aSJoseph Koshy case 'g': /* produce gprof compatible profiles */ 568f263522aSJoseph Koshy args.pa_flags |= FLAG_DO_GPROF; 5690b86b1bbSFabien Thomas args.pa_pplugin = PMCSTAT_PL_CALLGRAPH; 5700b86b1bbSFabien Thomas args.pa_plugin = PMCSTAT_PL_GPROF; 571f263522aSJoseph Koshy break; 572f263522aSJoseph Koshy 573821a352aSMatt Macy case 'I': 574821a352aSMatt Macy args.pa_flags |= FLAG_SKIP_TOP_FN_RES; 575821a352aSMatt Macy break; 57615139246SJoseph Koshy case 'k': /* pathname to the kernel */ 57749874f6eSJoseph Koshy free(args.pa_kernel); 57849874f6eSJoseph Koshy args.pa_kernel = strdup(optarg); 5793ad36a25SStephen J. Kiernan if (args.pa_kernel == NULL) 5803ad36a25SStephen J. Kiernan errx(EX_SOFTWARE, "ERROR: Out of memory"); 581b6010f9eSJoseph Koshy args.pa_required |= FLAG_DO_ANALYSIS; 58215139246SJoseph Koshy args.pa_flags |= FLAG_HAS_KERNELPATH; 583f263522aSJoseph Koshy break; 584f263522aSJoseph Koshy 5850b5dc7f6SMatt Macy case 'L': 5860b5dc7f6SMatt Macy args.pa_flags |= FLAG_FILTER_THREAD_ID; 5870b5dc7f6SMatt Macy args.pa_tid = strtol(optarg, &end, 0); 5880b5dc7f6SMatt Macy break; 58972fe532cSGeorge V. Neville-Neil case 'l': /* time duration in seconds */ 59072fe532cSGeorge V. Neville-Neil duration = strtod(optarg, &end); 59172fe532cSGeorge V. Neville-Neil if (*end != '\0' || duration <= 0) 59272fe532cSGeorge V. Neville-Neil errx(EX_USAGE, "ERROR: Illegal duration time " 59372fe532cSGeorge V. Neville-Neil "value \"%s\".", optarg); 59472fe532cSGeorge V. Neville-Neil args.pa_flags |= FLAG_HAS_DURATION; 59572fe532cSGeorge V. Neville-Neil args.pa_duration = duration; 59672fe532cSGeorge V. Neville-Neil break; 59772fe532cSGeorge V. Neville-Neil 598c0252222SAttilio Rao case 'm': 5990b86b1bbSFabien Thomas args.pa_flags |= FLAG_DO_ANNOTATE; 6000b86b1bbSFabien Thomas args.pa_plugin = PMCSTAT_PL_ANNOTATE; 601c0252222SAttilio Rao graphfilename = optarg; 602c0252222SAttilio Rao break; 603c0252222SAttilio Rao 604f263522aSJoseph Koshy case 'E': /* log process exit */ 605f263522aSJoseph Koshy do_logprocexit = !do_logprocexit; 606f263522aSJoseph Koshy args.pa_required |= (FLAG_HAS_PROCESS_PMCS | 60715139246SJoseph Koshy FLAG_HAS_COUNTING_PMCS | FLAG_HAS_OUTPUT_LOGFILE); 608ebccf1e3SJoseph Koshy break; 609ebccf1e3SJoseph Koshy 61049874f6eSJoseph Koshy case 'M': /* mapfile */ 61149874f6eSJoseph Koshy args.pa_mapfilename = optarg; 61249874f6eSJoseph Koshy break; 61349874f6eSJoseph Koshy 614b6010f9eSJoseph Koshy case 'N': 615b6010f9eSJoseph Koshy do_callchain = !do_callchain; 616b6010f9eSJoseph Koshy args.pa_required |= FLAG_HAS_SAMPLING_PMCS; 617b6010f9eSJoseph Koshy break; 618b6010f9eSJoseph Koshy 619ebccf1e3SJoseph Koshy case 'p': /* process virtual counting PMC */ 620ebccf1e3SJoseph Koshy case 's': /* system-wide counting PMC */ 621ebccf1e3SJoseph Koshy case 'P': /* process virtual sampling PMC */ 622ebccf1e3SJoseph Koshy case 'S': /* system-wide sampling PMC */ 623ebccf1e3SJoseph Koshy if ((ev = malloc(sizeof(*ev))) == NULL) 624f263522aSJoseph Koshy errx(EX_SOFTWARE, "ERROR: Out of memory."); 625ebccf1e3SJoseph Koshy 626ebccf1e3SJoseph Koshy switch (option) { 627ebccf1e3SJoseph Koshy case 'p': ev->ev_mode = PMC_MODE_TC; break; 628ebccf1e3SJoseph Koshy case 's': ev->ev_mode = PMC_MODE_SC; break; 629ebccf1e3SJoseph Koshy case 'P': ev->ev_mode = PMC_MODE_TS; break; 630ebccf1e3SJoseph Koshy case 'S': ev->ev_mode = PMC_MODE_SS; break; 631ebccf1e3SJoseph Koshy } 632ebccf1e3SJoseph Koshy 633f263522aSJoseph Koshy if (option == 'P' || option == 'p') { 634f263522aSJoseph Koshy args.pa_flags |= FLAG_HAS_PROCESS_PMCS; 63515139246SJoseph Koshy args.pa_required |= (FLAG_HAS_COMMANDLINE | 636fbd8b34aSJoseph Koshy FLAG_HAS_TARGET); 637f263522aSJoseph Koshy } 638ebccf1e3SJoseph Koshy 639f263522aSJoseph Koshy if (option == 'P' || option == 'S') { 640f263522aSJoseph Koshy args.pa_flags |= FLAG_HAS_SAMPLING_PMCS; 64115139246SJoseph Koshy args.pa_required |= (FLAG_HAS_PIPE | 64215139246SJoseph Koshy FLAG_HAS_OUTPUT_LOGFILE); 643f263522aSJoseph Koshy } 644ebccf1e3SJoseph Koshy 645ebccf1e3SJoseph Koshy if (option == 'p' || option == 's') 646f263522aSJoseph Koshy args.pa_flags |= FLAG_HAS_COUNTING_PMCS; 647f263522aSJoseph Koshy 648f263522aSJoseph Koshy if (option == 's' || option == 'S') 649f263522aSJoseph Koshy args.pa_flags |= FLAG_HAS_SYSTEM_PMCS; 650ebccf1e3SJoseph Koshy 651ebccf1e3SJoseph Koshy ev->ev_spec = strdup(optarg); 6523ad36a25SStephen J. Kiernan if (ev->ev_spec == NULL) 6533ad36a25SStephen J. Kiernan errx(EX_SOFTWARE, "ERROR: Out of memory."); 654ebccf1e3SJoseph Koshy 655ebccf1e3SJoseph Koshy if (option == 'S' || option == 'P') 656e98bbcf9SMatt Macy ev->ev_count = current_sampling_count ? current_sampling_count : pmcstat_pmu_sample_rate_get(ev->ev_spec); 657ebccf1e3SJoseph Koshy else 658ebccf1e3SJoseph Koshy ev->ev_count = -1; 659ebccf1e3SJoseph Koshy 660ef16b9abSJohn Baldwin if (option == 'S' || option == 's') 6617816cb4aSJohn Baldwin ev->ev_cpu = CPU_FFS(&cpumask) - 1; 662ef16b9abSJohn Baldwin else 663ebccf1e3SJoseph Koshy ev->ev_cpu = PMC_CPU_ANY; 664ebccf1e3SJoseph Koshy 665f263522aSJoseph Koshy ev->ev_flags = 0; 666b6010f9eSJoseph Koshy if (do_callchain) 667b6010f9eSJoseph Koshy ev->ev_flags |= PMC_F_CALLCHAIN; 668f263522aSJoseph Koshy if (do_descendants) 669f263522aSJoseph Koshy ev->ev_flags |= PMC_F_DESCENDANTS; 670f263522aSJoseph Koshy if (do_logprocexit) 671f263522aSJoseph Koshy ev->ev_flags |= PMC_F_LOG_PROCEXIT; 672f263522aSJoseph Koshy if (do_logproccsw) 673f263522aSJoseph Koshy ev->ev_flags |= PMC_F_LOG_PROCCSW; 674f263522aSJoseph Koshy 675ebccf1e3SJoseph Koshy ev->ev_cumulative = use_cumulative_counts; 676ebccf1e3SJoseph Koshy 677ebccf1e3SJoseph Koshy ev->ev_saved = 0LL; 678ebccf1e3SJoseph Koshy ev->ev_pmcid = PMC_ID_INVALID; 679ebccf1e3SJoseph Koshy 680ebccf1e3SJoseph Koshy /* extract event name */ 681ebccf1e3SJoseph Koshy c = strcspn(optarg, ", \t"); 682ebccf1e3SJoseph Koshy ev->ev_name = malloc(c + 1); 6833ad36a25SStephen J. Kiernan if (ev->ev_name == NULL) 6843ad36a25SStephen J. Kiernan errx(EX_SOFTWARE, "ERROR: Out of memory."); 685ebccf1e3SJoseph Koshy (void) strncpy(ev->ev_name, optarg, c); 686ebccf1e3SJoseph Koshy *(ev->ev_name + c) = '\0'; 687ebccf1e3SJoseph Koshy 688fbd8b34aSJoseph Koshy STAILQ_INSERT_TAIL(&args.pa_events, ev, ev_next); 689ebccf1e3SJoseph Koshy 690ea056888SAttilio Rao if (option == 's' || option == 'S') { 691ea056888SAttilio Rao CPU_CLR(ev->ev_cpu, &cpumask); 692d27927f7SRuslan Bukin pmcstat_clone_event_descriptor(ev, &cpumask, &args); 693ea056888SAttilio Rao CPU_SET(ev->ev_cpu, &cpumask); 694ea056888SAttilio Rao } 695ee4910b1SJoseph Koshy 696ebccf1e3SJoseph Koshy break; 697ebccf1e3SJoseph Koshy 698ebccf1e3SJoseph Koshy case 'n': /* sampling count */ 699ebccf1e3SJoseph Koshy current_sampling_count = strtol(optarg, &end, 0); 700ebccf1e3SJoseph Koshy if (*end != '\0' || current_sampling_count <= 0) 701ebccf1e3SJoseph Koshy errx(EX_USAGE, 702f263522aSJoseph Koshy "ERROR: Illegal count value \"%s\".", 703ebccf1e3SJoseph Koshy optarg); 704f263522aSJoseph Koshy args.pa_required |= FLAG_HAS_SAMPLING_PMCS; 705ebccf1e3SJoseph Koshy break; 706ebccf1e3SJoseph Koshy 707ebccf1e3SJoseph Koshy case 'o': /* outputfile */ 70866ce9936SFabien Thomas if (args.pa_printfile != NULL && 70966ce9936SFabien Thomas args.pa_printfile != stdout && 71066ce9936SFabien Thomas args.pa_printfile != stderr) 71115139246SJoseph Koshy (void) fclose(args.pa_printfile); 71215139246SJoseph Koshy if ((args.pa_printfile = fopen(optarg, "w")) == NULL) 71337d6f8a9SDavid E. O'Brien errx(EX_OSERR, 71437d6f8a9SDavid E. O'Brien "ERROR: cannot open \"%s\" for writing.", 71537d6f8a9SDavid E. O'Brien optarg); 71615139246SJoseph Koshy args.pa_flags |= FLAG_DO_PRINT; 717f263522aSJoseph Koshy break; 718ebccf1e3SJoseph Koshy 719ebccf1e3SJoseph Koshy case 'O': /* sampling output */ 72015139246SJoseph Koshy if (args.pa_outputpath) 72137d6f8a9SDavid E. O'Brien errx(EX_USAGE, 72237d6f8a9SDavid E. O'Brien "ERROR: option -O may only be specified once."); 72315139246SJoseph Koshy args.pa_outputpath = optarg; 72415139246SJoseph Koshy args.pa_flags |= FLAG_HAS_OUTPUT_LOGFILE; 72515139246SJoseph Koshy break; 72615139246SJoseph Koshy 72749874f6eSJoseph Koshy case 'q': /* quiet mode */ 72849874f6eSJoseph Koshy args.pa_verbosity = 0; 72949874f6eSJoseph Koshy break; 73049874f6eSJoseph Koshy 73149874f6eSJoseph Koshy case 'r': /* root FS path */ 73249874f6eSJoseph Koshy args.pa_fsroot = optarg; 73349874f6eSJoseph Koshy break; 73449874f6eSJoseph Koshy 73515139246SJoseph Koshy case 'R': /* read an existing log file */ 736b6010f9eSJoseph Koshy if (args.pa_inputpath != NULL) 73737d6f8a9SDavid E. O'Brien errx(EX_USAGE, 73837d6f8a9SDavid E. O'Brien "ERROR: option -R may only be specified once."); 73915139246SJoseph Koshy args.pa_inputpath = optarg; 74015139246SJoseph Koshy if (args.pa_printfile == stderr) 74115139246SJoseph Koshy args.pa_printfile = stdout; 74215139246SJoseph Koshy args.pa_flags |= FLAG_READ_LOGFILE; 743ebccf1e3SJoseph Koshy break; 744ebccf1e3SJoseph Koshy 745fbd8b34aSJoseph Koshy case 't': /* target pid or process name */ 7460b86b1bbSFabien Thomas pmcstat_find_targets(optarg); 747ebccf1e3SJoseph Koshy 748fbd8b34aSJoseph Koshy args.pa_flags |= FLAG_HAS_TARGET; 749f263522aSJoseph Koshy args.pa_required |= FLAG_HAS_PROCESS_PMCS; 750ebccf1e3SJoseph Koshy break; 751ebccf1e3SJoseph Koshy 7520b86b1bbSFabien Thomas case 'T': /* top mode */ 7530b86b1bbSFabien Thomas args.pa_flags |= FLAG_DO_TOP; 7540b86b1bbSFabien Thomas args.pa_plugin = PMCSTAT_PL_CALLGRAPH; 7550b86b1bbSFabien Thomas args.pa_ctdumpinstr = 0; 7560b86b1bbSFabien Thomas args.pa_mergepmc = 1; 7570b86b1bbSFabien Thomas if (args.pa_printfile == stderr) 7580b86b1bbSFabien Thomas args.pa_printfile = stdout; 7590b86b1bbSFabien Thomas break; 7600b86b1bbSFabien Thomas 76149874f6eSJoseph Koshy case 'v': /* verbose */ 76249874f6eSJoseph Koshy args.pa_verbosity++; 76349874f6eSJoseph Koshy break; 76449874f6eSJoseph Koshy 765ebccf1e3SJoseph Koshy case 'w': /* wait interval */ 766ebccf1e3SJoseph Koshy interval = strtod(optarg, &end); 767ebccf1e3SJoseph Koshy if (*end != '\0' || interval <= 0) 76837d6f8a9SDavid E. O'Brien errx(EX_USAGE, 76937d6f8a9SDavid E. O'Brien "ERROR: Illegal wait interval value \"%s\".", 77037d6f8a9SDavid E. O'Brien optarg); 771ebccf1e3SJoseph Koshy args.pa_flags |= FLAG_HAS_WAIT_INTERVAL; 772ebccf1e3SJoseph Koshy args.pa_interval = interval; 773f263522aSJoseph Koshy break; 774ebccf1e3SJoseph Koshy 775f263522aSJoseph Koshy case 'W': /* toggle LOG_CSW */ 776f263522aSJoseph Koshy do_logproccsw = !do_logproccsw; 777f263522aSJoseph Koshy args.pa_required |= (FLAG_HAS_PROCESS_PMCS | 77815139246SJoseph Koshy FLAG_HAS_COUNTING_PMCS | FLAG_HAS_OUTPUT_LOGFILE); 779ebccf1e3SJoseph Koshy break; 780ebccf1e3SJoseph Koshy 781b6010f9eSJoseph Koshy case 'z': 782b6010f9eSJoseph Koshy graphdepth = strtod(optarg, &end); 783b6010f9eSJoseph Koshy if (*end != '\0' || graphdepth <= 0) 78437d6f8a9SDavid E. O'Brien errx(EX_USAGE, 78537d6f8a9SDavid E. O'Brien "ERROR: Illegal callchain depth \"%s\".", 78637d6f8a9SDavid E. O'Brien optarg); 787b6010f9eSJoseph Koshy args.pa_graphdepth = graphdepth; 788b6010f9eSJoseph Koshy args.pa_required |= FLAG_DO_CALLGRAPHS; 789b6010f9eSJoseph Koshy break; 790b6010f9eSJoseph Koshy 791ebccf1e3SJoseph Koshy case '?': 792ebccf1e3SJoseph Koshy default: 793ebccf1e3SJoseph Koshy pmcstat_show_usage(); 794ebccf1e3SJoseph Koshy break; 795ebccf1e3SJoseph Koshy 796ebccf1e3SJoseph Koshy } 797ebccf1e3SJoseph Koshy 798ebccf1e3SJoseph Koshy args.pa_argc = (argc -= optind); 799ebccf1e3SJoseph Koshy args.pa_argv = (argv += optind); 800ebccf1e3SJoseph Koshy 801e7ef1de5SFabien Thomas /* If we read from logfile and no specified CPU mask use 802e7ef1de5SFabien Thomas * the maximum CPU count. 803e7ef1de5SFabien Thomas */ 804e7ef1de5SFabien Thomas if ((args.pa_flags & FLAG_READ_LOGFILE) && 805e7ef1de5SFabien Thomas (args.pa_flags & FLAGS_HAS_CPUMASK) == 0) 806ea056888SAttilio Rao CPU_FILL(&cpumask); 807e7ef1de5SFabien Thomas 808b6010f9eSJoseph Koshy args.pa_cpumask = cpumask; /* For selecting CPUs using -R. */ 809b6010f9eSJoseph Koshy 81015139246SJoseph Koshy if (argc) /* command line present */ 81115139246SJoseph Koshy args.pa_flags |= FLAG_HAS_COMMANDLINE; 812ebccf1e3SJoseph Koshy 813c0252222SAttilio Rao if (args.pa_flags & (FLAG_DO_GPROF | FLAG_DO_CALLGRAPHS | 8140b86b1bbSFabien Thomas FLAG_DO_ANNOTATE | FLAG_DO_TOP)) 815b6010f9eSJoseph Koshy args.pa_flags |= FLAG_DO_ANALYSIS; 816b6010f9eSJoseph Koshy 817ebccf1e3SJoseph Koshy /* 818ebccf1e3SJoseph Koshy * Check invocation syntax. 819ebccf1e3SJoseph Koshy */ 820ebccf1e3SJoseph Koshy 82115139246SJoseph Koshy /* disallow -O and -R together */ 82215139246SJoseph Koshy if (args.pa_outputpath && args.pa_inputpath) 82337d6f8a9SDavid E. O'Brien errx(EX_USAGE, 82437d6f8a9SDavid E. O'Brien "ERROR: options -O and -R are mutually exclusive."); 82515139246SJoseph Koshy 82672fe532cSGeorge V. Neville-Neil /* disallow -T and -l together */ 82772fe532cSGeorge V. Neville-Neil if ((args.pa_flags & FLAG_HAS_DURATION) && 82872fe532cSGeorge V. Neville-Neil (args.pa_flags & FLAG_DO_TOP)) 82972fe532cSGeorge V. Neville-Neil errx(EX_USAGE, "ERROR: options -T and -l are mutually " 83072fe532cSGeorge V. Neville-Neil "exclusive."); 83172fe532cSGeorge V. Neville-Neil 83210813ab3SEric van Gyzen /* -a and -m require -R */ 8330b86b1bbSFabien Thomas if (args.pa_flags & FLAG_DO_ANNOTATE && args.pa_inputpath == NULL) 83485ec49f3SAdrian Chadd errx(EX_USAGE, "ERROR: option %s requires an input file", 83585ec49f3SAdrian Chadd args.pa_plugin == PMCSTAT_PL_ANNOTATE ? "-m" : "-a"); 836c0252222SAttilio Rao 837c0252222SAttilio Rao /* -m option is not allowed combined with -g or -G. */ 8380b86b1bbSFabien Thomas if (args.pa_flags & FLAG_DO_ANNOTATE && 839c0252222SAttilio Rao args.pa_flags & (FLAG_DO_GPROF | FLAG_DO_CALLGRAPHS)) 84037d6f8a9SDavid E. O'Brien errx(EX_USAGE, 84137d6f8a9SDavid E. O'Brien "ERROR: option -m and -g | -G are mutually exclusive"); 842c0252222SAttilio Rao 84315139246SJoseph Koshy if (args.pa_flags & FLAG_READ_LOGFILE) { 844f263522aSJoseph Koshy errmsg = NULL; 84515139246SJoseph Koshy if (args.pa_flags & FLAG_HAS_COMMANDLINE) 846f263522aSJoseph Koshy errmsg = "a command line specification"; 847fbd8b34aSJoseph Koshy else if (args.pa_flags & FLAG_HAS_TARGET) 848f263522aSJoseph Koshy errmsg = "option -t"; 849fbd8b34aSJoseph Koshy else if (!STAILQ_EMPTY(&args.pa_events)) 850f263522aSJoseph Koshy errmsg = "a PMC event specification"; 851f263522aSJoseph Koshy if (errmsg) 85237d6f8a9SDavid E. O'Brien errx(EX_USAGE, 85337d6f8a9SDavid E. O'Brien "ERROR: option -R may not be used with %s.", 85437d6f8a9SDavid E. O'Brien errmsg); 855fbd8b34aSJoseph Koshy } else if (STAILQ_EMPTY(&args.pa_events)) 85615139246SJoseph Koshy /* All other uses require a PMC spec. */ 857ebccf1e3SJoseph Koshy pmcstat_show_usage(); 858ebccf1e3SJoseph Koshy 859f263522aSJoseph Koshy /* check for -t pid without a process PMC spec */ 860fbd8b34aSJoseph Koshy if ((args.pa_required & FLAG_HAS_TARGET) && 861f263522aSJoseph Koshy (args.pa_flags & FLAG_HAS_PROCESS_PMCS) == 0) 86237d6f8a9SDavid E. O'Brien errx(EX_USAGE, 86337d6f8a9SDavid E. O'Brien "ERROR: option -t requires a process mode PMC to be specified." 86437d6f8a9SDavid E. O'Brien ); 865f263522aSJoseph Koshy 866f263522aSJoseph Koshy /* check for process-mode options without a command or -t pid */ 867f263522aSJoseph Koshy if ((args.pa_required & FLAG_HAS_PROCESS_PMCS) && 868fbd8b34aSJoseph Koshy (args.pa_flags & (FLAG_HAS_COMMANDLINE | FLAG_HAS_TARGET)) == 0) 86937d6f8a9SDavid E. O'Brien errx(EX_USAGE, 87037d6f8a9SDavid E. O'Brien "ERROR: options -d, -E, -p, -P, and -W require a command line or target process." 87137d6f8a9SDavid E. O'Brien ); 872f263522aSJoseph Koshy 873f263522aSJoseph Koshy /* check for -p | -P without a target process of some sort */ 874fbd8b34aSJoseph Koshy if ((args.pa_required & (FLAG_HAS_COMMANDLINE | FLAG_HAS_TARGET)) && 875fbd8b34aSJoseph Koshy (args.pa_flags & (FLAG_HAS_COMMANDLINE | FLAG_HAS_TARGET)) == 0) 87637d6f8a9SDavid E. O'Brien errx(EX_USAGE, 87737d6f8a9SDavid E. O'Brien "ERROR: options -P and -p require a target process or a command line." 87837d6f8a9SDavid E. O'Brien ); 879f263522aSJoseph Koshy 880f263522aSJoseph Koshy /* check for process-mode options without a process-mode PMC */ 881f263522aSJoseph Koshy if ((args.pa_required & FLAG_HAS_PROCESS_PMCS) && 882f263522aSJoseph Koshy (args.pa_flags & FLAG_HAS_PROCESS_PMCS) == 0) 88337d6f8a9SDavid E. O'Brien errx(EX_USAGE, 88437d6f8a9SDavid E. O'Brien "ERROR: options -d, -E, and -W require a process mode PMC to be specified." 88537d6f8a9SDavid E. O'Brien ); 886f263522aSJoseph Koshy 887b6010f9eSJoseph Koshy /* check for -c cpu with no system mode PMCs or logfile. */ 888f263522aSJoseph Koshy if ((args.pa_required & FLAG_HAS_SYSTEM_PMCS) && 889b6010f9eSJoseph Koshy (args.pa_flags & FLAG_HAS_SYSTEM_PMCS) == 0 && 890b6010f9eSJoseph Koshy (args.pa_flags & FLAG_READ_LOGFILE) == 0) 89137d6f8a9SDavid E. O'Brien errx(EX_USAGE, 89237d6f8a9SDavid E. O'Brien "ERROR: option -c requires at least one system mode PMC to be specified." 89337d6f8a9SDavid E. O'Brien ); 894f263522aSJoseph Koshy 895f263522aSJoseph Koshy /* check for counting mode options without a counting PMC */ 896f263522aSJoseph Koshy if ((args.pa_required & FLAG_HAS_COUNTING_PMCS) && 897f263522aSJoseph Koshy (args.pa_flags & FLAG_HAS_COUNTING_PMCS) == 0) 89837d6f8a9SDavid E. O'Brien errx(EX_USAGE, 89937d6f8a9SDavid E. O'Brien "ERROR: options -C, -W and -o require at least one counting mode PMC to be specified." 90037d6f8a9SDavid E. O'Brien ); 901f263522aSJoseph Koshy 902f263522aSJoseph Koshy /* check for sampling mode options without a sampling PMC spec */ 903f263522aSJoseph Koshy if ((args.pa_required & FLAG_HAS_SAMPLING_PMCS) && 904f263522aSJoseph Koshy (args.pa_flags & FLAG_HAS_SAMPLING_PMCS) == 0) 90537d6f8a9SDavid E. O'Brien errx(EX_USAGE, 90637d6f8a9SDavid E. O'Brien "ERROR: options -N, -n and -O require at least one sampling mode PMC to be specified." 90737d6f8a9SDavid E. O'Brien ); 908f263522aSJoseph Koshy 9090b86b1bbSFabien Thomas /* check if -g/-G/-m/-T are being used correctly */ 910b6010f9eSJoseph Koshy if ((args.pa_flags & FLAG_DO_ANALYSIS) && 91115139246SJoseph Koshy !(args.pa_flags & (FLAG_HAS_SAMPLING_PMCS|FLAG_READ_LOGFILE))) 91237d6f8a9SDavid E. O'Brien errx(EX_USAGE, 91337d6f8a9SDavid E. O'Brien "ERROR: options -g/-G/-m/-T require sampling PMCs or -R to be specified." 91437d6f8a9SDavid E. O'Brien ); 91515139246SJoseph Koshy 916465dadb5SJonathan T. Looney /* check if -e was specified without -g */ 917465dadb5SJonathan T. Looney if ((args.pa_flags & FLAG_DO_WIDE_GPROF_HC) && 918465dadb5SJonathan T. Looney !(args.pa_flags & FLAG_DO_GPROF)) 919465dadb5SJonathan T. Looney errx(EX_USAGE, 920465dadb5SJonathan T. Looney "ERROR: option -e requires gprof mode to be specified." 921465dadb5SJonathan T. Looney ); 922465dadb5SJonathan T. Looney 923f263522aSJoseph Koshy /* check if -O was spuriously specified */ 92415139246SJoseph Koshy if ((args.pa_flags & FLAG_HAS_OUTPUT_LOGFILE) && 92515139246SJoseph Koshy (args.pa_required & FLAG_HAS_OUTPUT_LOGFILE) == 0) 926f263522aSJoseph Koshy errx(EX_USAGE, 92737d6f8a9SDavid E. O'Brien "ERROR: option -O is used only with options -E, -P, -S and -W." 92837d6f8a9SDavid E. O'Brien ); 929f263522aSJoseph Koshy 9300b86b1bbSFabien Thomas /* -k kernel path require -g/-G/-m/-T or -R */ 93115139246SJoseph Koshy if ((args.pa_flags & FLAG_HAS_KERNELPATH) && 932b6010f9eSJoseph Koshy (args.pa_flags & FLAG_DO_ANALYSIS) == 0 && 93349874f6eSJoseph Koshy (args.pa_flags & FLAG_READ_LOGFILE) == 0) 9340b86b1bbSFabien Thomas errx(EX_USAGE, "ERROR: option -k is only used with -g/-R/-m/-T."); 93515139246SJoseph Koshy 936b6010f9eSJoseph Koshy /* -D only applies to gprof output mode (-g) */ 93715139246SJoseph Koshy if ((args.pa_flags & FLAG_HAS_SAMPLESDIR) && 938b6010f9eSJoseph Koshy (args.pa_flags & FLAG_DO_GPROF) == 0) 939b6010f9eSJoseph Koshy errx(EX_USAGE, "ERROR: option -D is only used with -g."); 94049874f6eSJoseph Koshy 94149874f6eSJoseph Koshy /* -M mapfile requires -g or -R */ 94249874f6eSJoseph Koshy if (args.pa_mapfilename != NULL && 94349874f6eSJoseph Koshy (args.pa_flags & FLAG_DO_GPROF) == 0 && 94449874f6eSJoseph Koshy (args.pa_flags & FLAG_READ_LOGFILE) == 0) 94549874f6eSJoseph Koshy errx(EX_USAGE, "ERROR: option -M is only used with -g/-R."); 94615139246SJoseph Koshy 94715139246SJoseph Koshy /* 94815139246SJoseph Koshy * Disallow textual output of sampling PMCs if counting PMCs 94915139246SJoseph Koshy * have also been asked for, mostly because the combined output 95015139246SJoseph Koshy * is difficult to make sense of. 95115139246SJoseph Koshy */ 95215139246SJoseph Koshy if ((args.pa_flags & FLAG_HAS_COUNTING_PMCS) && 95315139246SJoseph Koshy (args.pa_flags & FLAG_HAS_SAMPLING_PMCS) && 95400a22dc5SJoseph Koshy ((args.pa_flags & FLAG_HAS_OUTPUT_LOGFILE) == 0)) 95537d6f8a9SDavid E. O'Brien errx(EX_USAGE, 95637d6f8a9SDavid E. O'Brien "ERROR: option -O is required if counting and sampling PMCs are specified together." 95737d6f8a9SDavid E. O'Brien ); 95815139246SJoseph Koshy 95949874f6eSJoseph Koshy /* 96038fd3834SJohn Baldwin * Check if 'kerneldir' refers to a file rather than a 96138fd3834SJohn Baldwin * directory. If so, use `dirname path` to determine the 96238fd3834SJohn Baldwin * kernel directory. 96349874f6eSJoseph Koshy */ 96449874f6eSJoseph Koshy (void) snprintf(buffer, sizeof(buffer), "%s%s", args.pa_fsroot, 96549874f6eSJoseph Koshy args.pa_kernel); 96649874f6eSJoseph Koshy if (stat(buffer, &sb) < 0) 96749874f6eSJoseph Koshy err(EX_OSERR, "ERROR: Cannot locate kernel \"%s\"", 96849874f6eSJoseph Koshy buffer); 96949874f6eSJoseph Koshy if (!S_ISREG(sb.st_mode) && !S_ISDIR(sb.st_mode)) 97049874f6eSJoseph Koshy errx(EX_USAGE, "ERROR: \"%s\": Unsupported file type.", 97149874f6eSJoseph Koshy buffer); 97249874f6eSJoseph Koshy if (!S_ISDIR(sb.st_mode)) { 97349874f6eSJoseph Koshy tmp = args.pa_kernel; 97449874f6eSJoseph Koshy args.pa_kernel = strdup(dirname(args.pa_kernel)); 9753ad36a25SStephen J. Kiernan if (args.pa_kernel == NULL) 9763ad36a25SStephen J. Kiernan errx(EX_SOFTWARE, "ERROR: Out of memory"); 97749874f6eSJoseph Koshy free(tmp); 97849874f6eSJoseph Koshy (void) snprintf(buffer, sizeof(buffer), "%s%s", 97949874f6eSJoseph Koshy args.pa_fsroot, args.pa_kernel); 98049874f6eSJoseph Koshy if (stat(buffer, &sb) < 0) 98149874f6eSJoseph Koshy err(EX_OSERR, "ERROR: Cannot stat \"%s\"", 98249874f6eSJoseph Koshy buffer); 98349874f6eSJoseph Koshy if (!S_ISDIR(sb.st_mode)) 98437d6f8a9SDavid E. O'Brien errx(EX_USAGE, 98537d6f8a9SDavid E. O'Brien "ERROR: \"%s\" is not a directory.", 98637d6f8a9SDavid E. O'Brien buffer); 98749874f6eSJoseph Koshy } 98849874f6eSJoseph Koshy 989b6010f9eSJoseph Koshy /* 990b6010f9eSJoseph Koshy * If we have a callgraph be created, select the outputfile. 991b6010f9eSJoseph Koshy */ 992b6010f9eSJoseph Koshy if (args.pa_flags & FLAG_DO_CALLGRAPHS) { 993b6010f9eSJoseph Koshy if (strcmp(graphfilename, "-") == 0) 994b6010f9eSJoseph Koshy args.pa_graphfile = args.pa_printfile; 995b6010f9eSJoseph Koshy else { 996b6010f9eSJoseph Koshy args.pa_graphfile = fopen(graphfilename, "w"); 997b6010f9eSJoseph Koshy if (args.pa_graphfile == NULL) 99837d6f8a9SDavid E. O'Brien err(EX_OSERR, 99937d6f8a9SDavid E. O'Brien "ERROR: cannot open \"%s\" for writing", 100037d6f8a9SDavid E. O'Brien graphfilename); 1001b6010f9eSJoseph Koshy } 1002b6010f9eSJoseph Koshy } 10030b86b1bbSFabien Thomas if (args.pa_flags & FLAG_DO_ANNOTATE) { 1004c0252222SAttilio Rao args.pa_graphfile = fopen(graphfilename, "w"); 1005c0252222SAttilio Rao if (args.pa_graphfile == NULL) 1006c0252222SAttilio Rao err(EX_OSERR, "ERROR: cannot open \"%s\" for writing", 1007c0252222SAttilio Rao graphfilename); 1008c0252222SAttilio Rao } 1009b6010f9eSJoseph Koshy 1010ac708fddSFabien Thomas /* if we've been asked to process a log file, skip init */ 1011ac708fddSFabien Thomas if ((args.pa_flags & FLAG_READ_LOGFILE) == 0) { 1012ac708fddSFabien Thomas if (pmc_init() < 0) 1013ac708fddSFabien Thomas err(EX_UNAVAILABLE, 101437d6f8a9SDavid E. O'Brien "ERROR: Initialization of the pmc(3) library failed" 101537d6f8a9SDavid E. O'Brien ); 1016ac708fddSFabien Thomas 1017ac708fddSFabien Thomas if ((npmc = pmc_npmc(0)) < 0) /* assume all CPUs are identical */ 101837d6f8a9SDavid E. O'Brien err(EX_OSERR, 101937d6f8a9SDavid E. O'Brien "ERROR: Cannot determine the number of PMCs on CPU %d", 102037d6f8a9SDavid E. O'Brien 0); 1021ac708fddSFabien Thomas } 1022ac708fddSFabien Thomas 1023ac708fddSFabien Thomas /* Allocate a kqueue */ 1024ac708fddSFabien Thomas if ((pmcstat_kq = kqueue()) < 0) 1025ac708fddSFabien Thomas err(EX_OSERR, "ERROR: Cannot allocate kqueue"); 1026ac708fddSFabien Thomas 1027ac708fddSFabien Thomas /* Setup the logfile as the source. */ 102815139246SJoseph Koshy if (args.pa_flags & FLAG_READ_LOGFILE) { 102915139246SJoseph Koshy /* 103015139246SJoseph Koshy * Print the log in textual form if we haven't been 1031b6010f9eSJoseph Koshy * asked to generate profiling information. 103215139246SJoseph Koshy */ 1033b6010f9eSJoseph Koshy if ((args.pa_flags & FLAG_DO_ANALYSIS) == 0) 103415139246SJoseph Koshy args.pa_flags |= FLAG_DO_PRINT; 103515139246SJoseph Koshy 1036d27927f7SRuslan Bukin pmcstat_log_initialize_logging(); 1037ac708fddSFabien Thomas rfd = pmcstat_open_log(args.pa_inputpath, 1038302cbb90SJoseph Koshy PMCSTAT_OPEN_FOR_READ); 1039ac708fddSFabien Thomas if ((args.pa_logparser = pmclog_open(rfd)) == NULL) 104015139246SJoseph Koshy err(EX_OSERR, "ERROR: Cannot create parser"); 1041ac708fddSFabien Thomas if (fcntl(rfd, F_SETFL, O_NONBLOCK) < 0) 1042ac708fddSFabien Thomas err(EX_OSERR, "ERROR: fcntl(2) failed"); 1043ac708fddSFabien Thomas EV_SET(&kev, rfd, EVFILT_READ, EV_ADD, 1044ac708fddSFabien Thomas 0, 0, NULL); 1045ac708fddSFabien Thomas if (kevent(pmcstat_kq, &kev, 1, NULL, 0, NULL) < 0) 1046ac708fddSFabien Thomas err(EX_OSERR, "ERROR: Cannot register kevent"); 1047f263522aSJoseph Koshy } 104815139246SJoseph Koshy /* 104915139246SJoseph Koshy * Configure the specified log file or setup a default log 105015139246SJoseph Koshy * consumer via a pipe. 105115139246SJoseph Koshy */ 105215139246SJoseph Koshy if (args.pa_required & FLAG_HAS_OUTPUT_LOGFILE) { 1053302cbb90SJoseph Koshy if (args.pa_outputpath) 1054302cbb90SJoseph Koshy args.pa_logfd = pmcstat_open_log(args.pa_outputpath, 1055302cbb90SJoseph Koshy PMCSTAT_OPEN_FOR_WRITE); 1056302cbb90SJoseph Koshy else { 105715139246SJoseph Koshy /* 105815139246SJoseph Koshy * process the log on the fly by reading it in 105915139246SJoseph Koshy * through a pipe. 106015139246SJoseph Koshy */ 106115139246SJoseph Koshy if (pipe(pipefd) < 0) 106215139246SJoseph Koshy err(EX_OSERR, "ERROR: pipe(2) failed"); 106315139246SJoseph Koshy 106415139246SJoseph Koshy if (fcntl(pipefd[READPIPEFD], F_SETFL, O_NONBLOCK) < 0) 106515139246SJoseph Koshy err(EX_OSERR, "ERROR: fcntl(2) failed"); 106615139246SJoseph Koshy 106715139246SJoseph Koshy EV_SET(&kev, pipefd[READPIPEFD], EVFILT_READ, EV_ADD, 106815139246SJoseph Koshy 0, 0, NULL); 106915139246SJoseph Koshy 107015139246SJoseph Koshy if (kevent(pmcstat_kq, &kev, 1, NULL, 0, NULL) < 0) 107115139246SJoseph Koshy err(EX_OSERR, "ERROR: Cannot register kevent"); 107215139246SJoseph Koshy 107315139246SJoseph Koshy args.pa_logfd = pipefd[WRITEPIPEFD]; 107415139246SJoseph Koshy 10750b86b1bbSFabien Thomas args.pa_flags |= FLAG_HAS_PIPE; 10760b86b1bbSFabien Thomas if ((args.pa_flags & FLAG_DO_TOP) == 0) 10770b86b1bbSFabien Thomas args.pa_flags |= FLAG_DO_PRINT; 107815139246SJoseph Koshy args.pa_logparser = pmclog_open(pipefd[READPIPEFD]); 107915139246SJoseph Koshy } 108015139246SJoseph Koshy 108115139246SJoseph Koshy if (pmc_configure_logfile(args.pa_logfd) < 0) 108215139246SJoseph Koshy err(EX_OSERR, "ERROR: Cannot configure log file"); 108315139246SJoseph Koshy } 108415139246SJoseph Koshy 10857fbf3da2SJoseph Koshy /* remember to check for driver errors if we are sampling or logging */ 10867fbf3da2SJoseph Koshy check_driver_stats = (args.pa_flags & FLAG_HAS_SAMPLING_PMCS) || 10877fbf3da2SJoseph Koshy (args.pa_flags & FLAG_HAS_OUTPUT_LOGFILE); 10887fbf3da2SJoseph Koshy 1089ebccf1e3SJoseph Koshy /* 1090ac708fddSFabien Thomas if (args.pa_flags & FLAG_READ_LOGFILE) { 1091ebccf1e3SJoseph Koshy * Allocate PMCs. 1092ebccf1e3SJoseph Koshy */ 1093ebccf1e3SJoseph Koshy 1094fbd8b34aSJoseph Koshy STAILQ_FOREACH(ev, &args.pa_events, ev_next) { 1095ebccf1e3SJoseph Koshy if (pmc_allocate(ev->ev_spec, ev->ev_mode, 1096f263522aSJoseph Koshy ev->ev_flags, ev->ev_cpu, &ev->ev_pmcid) < 0) 109737d6f8a9SDavid E. O'Brien err(EX_OSERR, 109837d6f8a9SDavid E. O'Brien "ERROR: Cannot allocate %s-mode pmc with specification \"%s\"", 109937d6f8a9SDavid E. O'Brien PMC_IS_SYSTEM_MODE(ev->ev_mode) ? 110037d6f8a9SDavid E. O'Brien "system" : "process", ev->ev_spec); 1101ebccf1e3SJoseph Koshy 110215139246SJoseph Koshy if (PMC_IS_SAMPLING_MODE(ev->ev_mode) && 110315139246SJoseph Koshy pmc_set(ev->ev_pmcid, ev->ev_count) < 0) 110437d6f8a9SDavid E. O'Brien err(EX_OSERR, 110537d6f8a9SDavid E. O'Brien "ERROR: Cannot set sampling count for PMC \"%s\"", 110637d6f8a9SDavid E. O'Brien ev->ev_name); 110715139246SJoseph Koshy } 110815139246SJoseph Koshy 1109ebccf1e3SJoseph Koshy /* compute printout widths */ 1110fbd8b34aSJoseph Koshy STAILQ_FOREACH(ev, &args.pa_events, ev_next) { 1111c5153e19SJoseph Koshy int counter_width; 1112c5153e19SJoseph Koshy int display_width; 1113c5153e19SJoseph Koshy int header_width; 1114ebccf1e3SJoseph Koshy 1115c5153e19SJoseph Koshy (void) pmc_width(ev->ev_pmcid, &counter_width); 1116ee4910b1SJoseph Koshy header_width = strlen(ev->ev_name) + 2; /* prefix '%c/' */ 1117c5153e19SJoseph Koshy display_width = (int) floor(counter_width / 3.32193) + 1; 1118ebccf1e3SJoseph Koshy 1119ee4910b1SJoseph Koshy if (PMC_IS_SYSTEM_MODE(ev->ev_mode)) 1120ee4910b1SJoseph Koshy header_width += 3; /* 2 digit CPU number + '/' */ 1121ee4910b1SJoseph Koshy 1122c5153e19SJoseph Koshy if (header_width > display_width) { 1123ebccf1e3SJoseph Koshy ev->ev_fieldskip = 0; 1124c5153e19SJoseph Koshy ev->ev_fieldwidth = header_width; 1125ebccf1e3SJoseph Koshy } else { 1126c5153e19SJoseph Koshy ev->ev_fieldskip = display_width - 1127c5153e19SJoseph Koshy header_width; 1128c5153e19SJoseph Koshy ev->ev_fieldwidth = display_width; 1129ebccf1e3SJoseph Koshy } 1130ebccf1e3SJoseph Koshy } 1131ebccf1e3SJoseph Koshy 1132ebccf1e3SJoseph Koshy /* 1133ebccf1e3SJoseph Koshy * If our output is being set to a terminal, register a handler 1134ebccf1e3SJoseph Koshy * for window size changes. 1135ebccf1e3SJoseph Koshy */ 1136ebccf1e3SJoseph Koshy 113715139246SJoseph Koshy if (isatty(fileno(args.pa_printfile))) { 1138ebccf1e3SJoseph Koshy 113915139246SJoseph Koshy if (ioctl(fileno(args.pa_printfile), TIOCGWINSZ, &ws) < 0) 1140ebccf1e3SJoseph Koshy err(EX_OSERR, "ERROR: Cannot determine window size"); 1141ebccf1e3SJoseph Koshy 1142ebccf1e3SJoseph Koshy pmcstat_displayheight = ws.ws_row - 1; 11430b86b1bbSFabien Thomas pmcstat_displaywidth = ws.ws_col - 1; 1144ebccf1e3SJoseph Koshy 1145ebccf1e3SJoseph Koshy EV_SET(&kev, SIGWINCH, EVFILT_SIGNAL, EV_ADD, 0, 0, NULL); 1146ebccf1e3SJoseph Koshy 1147ebccf1e3SJoseph Koshy if (kevent(pmcstat_kq, &kev, 1, NULL, 0, NULL) < 0) 114837d6f8a9SDavid E. O'Brien err(EX_OSERR, 114937d6f8a9SDavid E. O'Brien "ERROR: Cannot register kevent for SIGWINCH"); 11500b86b1bbSFabien Thomas 11510b86b1bbSFabien Thomas args.pa_toptty = 1; 11520b86b1bbSFabien Thomas } 11530b86b1bbSFabien Thomas 11540b86b1bbSFabien Thomas /* 11550b86b1bbSFabien Thomas * Listen to key input in top mode. 11560b86b1bbSFabien Thomas */ 11570b86b1bbSFabien Thomas if (args.pa_flags & FLAG_DO_TOP) { 11580b86b1bbSFabien Thomas EV_SET(&kev, fileno(stdin), EVFILT_READ, EV_ADD, 0, 0, NULL); 11590b86b1bbSFabien Thomas if (kevent(pmcstat_kq, &kev, 1, NULL, 0, NULL) < 0) 11600b86b1bbSFabien Thomas err(EX_OSERR, "ERROR: Cannot register kevent"); 1161ebccf1e3SJoseph Koshy } 1162ebccf1e3SJoseph Koshy 1163ebccf1e3SJoseph Koshy EV_SET(&kev, SIGINT, EVFILT_SIGNAL, EV_ADD, 0, 0, NULL); 1164ebccf1e3SJoseph Koshy if (kevent(pmcstat_kq, &kev, 1, NULL, 0, NULL) < 0) 1165ebccf1e3SJoseph Koshy err(EX_OSERR, "ERROR: Cannot register kevent for SIGINT"); 1166ebccf1e3SJoseph Koshy 1167f263522aSJoseph Koshy EV_SET(&kev, SIGIO, EVFILT_SIGNAL, EV_ADD, 0, 0, NULL); 1168f263522aSJoseph Koshy if (kevent(pmcstat_kq, &kev, 1, NULL, 0, NULL) < 0) 1169f263522aSJoseph Koshy err(EX_OSERR, "ERROR: Cannot register kevent for SIGIO"); 1170ebccf1e3SJoseph Koshy 1171ebccf1e3SJoseph Koshy /* 1172f263522aSJoseph Koshy * An exec() failure of a forked child is signalled by the 1173f263522aSJoseph Koshy * child sending the parent a SIGCHLD. We don't register an 1174f263522aSJoseph Koshy * actual signal handler for SIGCHLD, but instead use our 1175f263522aSJoseph Koshy * kqueue to pick up the signal. 1176ebccf1e3SJoseph Koshy */ 1177f263522aSJoseph Koshy EV_SET(&kev, SIGCHLD, EVFILT_SIGNAL, EV_ADD, 0, 0, NULL); 1178f263522aSJoseph Koshy if (kevent(pmcstat_kq, &kev, 1, NULL, 0, NULL) < 0) 1179f263522aSJoseph Koshy err(EX_OSERR, "ERROR: Cannot register kevent for SIGCHLD"); 1180ebccf1e3SJoseph Koshy 11810b86b1bbSFabien Thomas /* 11820b86b1bbSFabien Thomas * Setup a timer if we have counting mode PMCs needing to be printed or 11830b86b1bbSFabien Thomas * top mode plugin is active. 11840b86b1bbSFabien Thomas */ 11850b86b1bbSFabien Thomas if (((args.pa_flags & FLAG_HAS_COUNTING_PMCS) && 11860b86b1bbSFabien Thomas (args.pa_required & FLAG_HAS_OUTPUT_LOGFILE) == 0) || 11870b86b1bbSFabien Thomas (args.pa_flags & FLAG_DO_TOP)) { 1188ebccf1e3SJoseph Koshy EV_SET(&kev, 0, EVFILT_TIMER, EV_ADD, 0, 1189ebccf1e3SJoseph Koshy args.pa_interval * 1000, NULL); 1190ebccf1e3SJoseph Koshy 1191ebccf1e3SJoseph Koshy if (kevent(pmcstat_kq, &kev, 1, NULL, 0, NULL) < 0) 119237d6f8a9SDavid E. O'Brien err(EX_OSERR, 119337d6f8a9SDavid E. O'Brien "ERROR: Cannot register kevent for timer"); 1194ebccf1e3SJoseph Koshy } 1195ebccf1e3SJoseph Koshy 119672fe532cSGeorge V. Neville-Neil /* 119772fe532cSGeorge V. Neville-Neil * Setup a duration timer if we have sampling mode PMCs and 119872fe532cSGeorge V. Neville-Neil * a duration time is set 119972fe532cSGeorge V. Neville-Neil */ 120072fe532cSGeorge V. Neville-Neil if ((args.pa_flags & FLAG_HAS_SAMPLING_PMCS) && 120172fe532cSGeorge V. Neville-Neil (args.pa_flags & FLAG_HAS_DURATION)) { 120272fe532cSGeorge V. Neville-Neil EV_SET(&kev, 0, EVFILT_TIMER, EV_ADD, 0, 120372fe532cSGeorge V. Neville-Neil args.pa_duration * 1000, NULL); 120472fe532cSGeorge V. Neville-Neil 120572fe532cSGeorge V. Neville-Neil if (kevent(pmcstat_kq, &kev, 1, NULL, 0, NULL) < 0) 120672fe532cSGeorge V. Neville-Neil err(EX_OSERR, "ERROR: Cannot register kevent for " 120772fe532cSGeorge V. Neville-Neil "time duration"); 120872fe532cSGeorge V. Neville-Neil } 120972fe532cSGeorge V. Neville-Neil 1210ebccf1e3SJoseph Koshy /* attach PMCs to the target process, starting it if specified */ 1211ee4910b1SJoseph Koshy if (args.pa_flags & FLAG_HAS_COMMANDLINE) 1212d27927f7SRuslan Bukin pmcstat_create_process(pmcstat_sockpair, &args, pmcstat_kq); 1213ebccf1e3SJoseph Koshy 12147fbf3da2SJoseph Koshy if (check_driver_stats && pmc_get_driver_stats(&ds_start) < 0) 12157fbf3da2SJoseph Koshy err(EX_OSERR, "ERROR: Cannot retrieve driver statistics"); 12167fbf3da2SJoseph Koshy 1217ee4910b1SJoseph Koshy /* Attach process pmcs to the target process. */ 1218165b10b0SJoseph Koshy if (args.pa_flags & (FLAG_HAS_TARGET | FLAG_HAS_COMMANDLINE)) { 1219fbd8b34aSJoseph Koshy if (SLIST_EMPTY(&args.pa_targets)) 122037d6f8a9SDavid E. O'Brien errx(EX_DATAERR, 122137d6f8a9SDavid E. O'Brien "ERROR: No matching target processes."); 12225477328dSJoseph Koshy if (args.pa_flags & FLAG_HAS_PROCESS_PMCS) 1223d27927f7SRuslan Bukin pmcstat_attach_pmcs(&args); 1224ee4910b1SJoseph Koshy 1225fbd8b34aSJoseph Koshy if (pmcstat_kvm) { 1226fbd8b34aSJoseph Koshy kvm_close(pmcstat_kvm); 1227fbd8b34aSJoseph Koshy pmcstat_kvm = NULL; 1228fbd8b34aSJoseph Koshy } 1229fbd8b34aSJoseph Koshy } 1230fbd8b34aSJoseph Koshy 1231ebccf1e3SJoseph Koshy /* start the pmcs */ 12320b86b1bbSFabien Thomas pmcstat_start_pmcs(); 1233ebccf1e3SJoseph Koshy 1234ebccf1e3SJoseph Koshy /* start the (commandline) process if needed */ 123515139246SJoseph Koshy if (args.pa_flags & FLAG_HAS_COMMANDLINE) 1236d27927f7SRuslan Bukin pmcstat_start_process(pmcstat_sockpair); 1237ebccf1e3SJoseph Koshy 1238ac708fddSFabien Thomas /* initialize logging */ 1239d27927f7SRuslan Bukin pmcstat_log_initialize_logging(); 124015139246SJoseph Koshy 1241ebccf1e3SJoseph Koshy /* Handle SIGINT using the kqueue loop */ 1242ebccf1e3SJoseph Koshy sa.sa_handler = SIG_IGN; 1243ebccf1e3SJoseph Koshy sa.sa_flags = 0; 1244ebccf1e3SJoseph Koshy (void) sigemptyset(&sa.sa_mask); 1245ebccf1e3SJoseph Koshy 1246ebccf1e3SJoseph Koshy if (sigaction(SIGINT, &sa, NULL) < 0) 1247ebccf1e3SJoseph Koshy err(EX_OSERR, "ERROR: Cannot install signal handler"); 1248ebccf1e3SJoseph Koshy 1249ebccf1e3SJoseph Koshy /* 12500b86b1bbSFabien Thomas * Setup the top mode display. 12510b86b1bbSFabien Thomas */ 12520b86b1bbSFabien Thomas if (args.pa_flags & FLAG_DO_TOP) { 12530b86b1bbSFabien Thomas args.pa_flags &= ~FLAG_DO_PRINT; 12540b86b1bbSFabien Thomas 12550b86b1bbSFabien Thomas if (args.pa_toptty) { 12560b86b1bbSFabien Thomas /* 12570b86b1bbSFabien Thomas * Init ncurses. 12580b86b1bbSFabien Thomas */ 12590b86b1bbSFabien Thomas initscr(); 12600b86b1bbSFabien Thomas if(has_colors() == TRUE) { 12610b86b1bbSFabien Thomas args.pa_topcolor = 1; 12620b86b1bbSFabien Thomas start_color(); 12630b86b1bbSFabien Thomas use_default_colors(); 12640b86b1bbSFabien Thomas pair_content(0, &cf, &cb); 12650b86b1bbSFabien Thomas init_pair(1, COLOR_RED, cb); 12660b86b1bbSFabien Thomas init_pair(2, COLOR_YELLOW, cb); 12670b86b1bbSFabien Thomas init_pair(3, COLOR_GREEN, cb); 12680b86b1bbSFabien Thomas } 12690b86b1bbSFabien Thomas cbreak(); 12700b86b1bbSFabien Thomas noecho(); 12710b86b1bbSFabien Thomas nonl(); 12720b86b1bbSFabien Thomas nodelay(stdscr, 1); 12730b86b1bbSFabien Thomas intrflush(stdscr, FALSE); 12740b86b1bbSFabien Thomas keypad(stdscr, TRUE); 12750b86b1bbSFabien Thomas clear(); 12762aa983e5SFabien Thomas /* Get terminal width / height with ncurses. */ 127737d6f8a9SDavid E. O'Brien getmaxyx(stdscr, 127837d6f8a9SDavid E. O'Brien pmcstat_displayheight, pmcstat_displaywidth); 12792aa983e5SFabien Thomas pmcstat_displayheight--; pmcstat_displaywidth--; 12800b86b1bbSFabien Thomas atexit(pmcstat_topexit); 12810b86b1bbSFabien Thomas } 12820b86b1bbSFabien Thomas } 12830b86b1bbSFabien Thomas 12840b86b1bbSFabien Thomas /* 1285ebccf1e3SJoseph Koshy * loop till either the target process (if any) exits, or we 128672fe532cSGeorge V. Neville-Neil * are killed by a SIGINT or we reached the time duration. 1287ebccf1e3SJoseph Koshy */ 1288f263522aSJoseph Koshy runstate = PMCSTAT_RUNNING; 1289dceed24aSFabien Thomas do_print = do_read = 0; 1290ebccf1e3SJoseph Koshy do { 1291ebccf1e3SJoseph Koshy if ((c = kevent(pmcstat_kq, NULL, 0, &kev, 1, NULL)) <= 0) { 1292ebccf1e3SJoseph Koshy if (errno != EINTR) 1293ebccf1e3SJoseph Koshy err(EX_OSERR, "ERROR: kevent failed"); 1294ebccf1e3SJoseph Koshy else 1295ebccf1e3SJoseph Koshy continue; 1296ebccf1e3SJoseph Koshy } 1297ebccf1e3SJoseph Koshy 1298ebccf1e3SJoseph Koshy if (kev.flags & EV_ERROR) 1299ebccf1e3SJoseph Koshy errc(EX_OSERR, kev.data, "ERROR: kevent failed"); 1300ebccf1e3SJoseph Koshy 1301ebccf1e3SJoseph Koshy switch (kev.filter) { 1302f263522aSJoseph Koshy case EVFILT_PROC: /* target has exited */ 1303d27927f7SRuslan Bukin runstate = pmcstat_close_log(&args); 130438fc5f34SJoseph Koshy do_print = 1; 1305f263522aSJoseph Koshy break; 1306ebccf1e3SJoseph Koshy 1307f263522aSJoseph Koshy case EVFILT_READ: /* log file data is present */ 1308ac708fddSFabien Thomas if (kev.ident == (unsigned)fileno(stdin) && 1309ac708fddSFabien Thomas (args.pa_flags & FLAG_DO_TOP)) { 13100b86b1bbSFabien Thomas if (pmcstat_keypress_log()) 1311d27927f7SRuslan Bukin runstate = pmcstat_close_log(&args); 1312dceed24aSFabien Thomas } else { 1313dceed24aSFabien Thomas do_read = 0; 13140b86b1bbSFabien Thomas runstate = pmcstat_process_log(); 1315dceed24aSFabien Thomas } 1316ebccf1e3SJoseph Koshy break; 1317ebccf1e3SJoseph Koshy 1318ebccf1e3SJoseph Koshy case EVFILT_SIGNAL: 1319f263522aSJoseph Koshy if (kev.ident == SIGCHLD) { 1320f263522aSJoseph Koshy /* 1321f263522aSJoseph Koshy * The child process sends us a 1322f263522aSJoseph Koshy * SIGCHLD if its exec() failed. We 1323f263522aSJoseph Koshy * wait for it to exit and then exit 1324f263522aSJoseph Koshy * ourselves. 1325f263522aSJoseph Koshy */ 1326f263522aSJoseph Koshy (void) wait(&c); 1327f263522aSJoseph Koshy runstate = PMCSTAT_FINISHED; 1328f263522aSJoseph Koshy } else if (kev.ident == SIGIO) { 1329f263522aSJoseph Koshy /* 1330f263522aSJoseph Koshy * We get a SIGIO if a PMC loses all 1331f263522aSJoseph Koshy * of its targets, or if logfile 1332f263522aSJoseph Koshy * writes encounter an error. 1333f263522aSJoseph Koshy */ 1334d27927f7SRuslan Bukin runstate = pmcstat_close_log(&args); 1335f263522aSJoseph Koshy do_print = 1; /* print PMCs at exit */ 1336f263522aSJoseph Koshy } else if (kev.ident == SIGINT) { 133715139246SJoseph Koshy /* Kill the child process if we started it */ 133815139246SJoseph Koshy if (args.pa_flags & FLAG_HAS_COMMANDLINE) 13390b86b1bbSFabien Thomas pmcstat_kill_process(); 1340d27927f7SRuslan Bukin runstate = pmcstat_close_log(&args); 1341ebccf1e3SJoseph Koshy } else if (kev.ident == SIGWINCH) { 134215139246SJoseph Koshy if (ioctl(fileno(args.pa_printfile), 1343ebccf1e3SJoseph Koshy TIOCGWINSZ, &ws) < 0) 134437d6f8a9SDavid E. O'Brien err(EX_OSERR, 134537d6f8a9SDavid E. O'Brien "ERROR: Cannot determine window size"); 1346ebccf1e3SJoseph Koshy pmcstat_displayheight = ws.ws_row - 1; 13470b86b1bbSFabien Thomas pmcstat_displaywidth = ws.ws_col - 1; 1348ebccf1e3SJoseph Koshy } else 1349ebccf1e3SJoseph Koshy assert(0); 1350ebccf1e3SJoseph Koshy 1351ebccf1e3SJoseph Koshy break; 1352f263522aSJoseph Koshy 135372fe532cSGeorge V. Neville-Neil case EVFILT_TIMER: 135472fe532cSGeorge V. Neville-Neil /* time duration reached, exit */ 135572fe532cSGeorge V. Neville-Neil if (args.pa_flags & FLAG_HAS_DURATION) { 135672fe532cSGeorge V. Neville-Neil runstate = PMCSTAT_FINISHED; 135772fe532cSGeorge V. Neville-Neil break; 135872fe532cSGeorge V. Neville-Neil } 135972fe532cSGeorge V. Neville-Neil /* print out counting PMCs */ 1360dceed24aSFabien Thomas if ((args.pa_flags & FLAG_DO_TOP) && 1361cb43ed28SFabien Thomas (args.pa_flags & FLAG_HAS_PIPE) && 136266ce9936SFabien Thomas pmc_flush_logfile() == 0) 1363dceed24aSFabien Thomas do_read = 1; 1364f263522aSJoseph Koshy do_print = 1; 1365f263522aSJoseph Koshy break; 1366f263522aSJoseph Koshy 1367ebccf1e3SJoseph Koshy } 1368ebccf1e3SJoseph Koshy 1369dceed24aSFabien Thomas if (do_print && !do_read) { 13700b86b1bbSFabien Thomas if ((args.pa_required & FLAG_HAS_OUTPUT_LOGFILE) == 0) { 13710b86b1bbSFabien Thomas pmcstat_print_pmcs(); 137237d6f8a9SDavid E. O'Brien if (runstate == PMCSTAT_FINISHED && 137337d6f8a9SDavid E. O'Brien /* final newline */ 137415139246SJoseph Koshy (args.pa_flags & FLAG_DO_PRINT) == 0) 137515139246SJoseph Koshy (void) fprintf(args.pa_printfile, "\n"); 13760b86b1bbSFabien Thomas } 13770b86b1bbSFabien Thomas if (args.pa_flags & FLAG_DO_TOP) 13780b86b1bbSFabien Thomas pmcstat_display_log(); 1379f263522aSJoseph Koshy do_print = 0; 1380f263522aSJoseph Koshy } 1381f263522aSJoseph Koshy 1382f263522aSJoseph Koshy } while (runstate != PMCSTAT_FINISHED); 1383f263522aSJoseph Koshy 13840b86b1bbSFabien Thomas if ((args.pa_flags & FLAG_DO_TOP) && args.pa_toptty) { 13850b86b1bbSFabien Thomas pmcstat_topexit(); 13860b86b1bbSFabien Thomas args.pa_toptty = 0; 13870b86b1bbSFabien Thomas } 13880b86b1bbSFabien Thomas 1389f263522aSJoseph Koshy /* flush any pending log entries */ 139015139246SJoseph Koshy if (args.pa_flags & (FLAG_HAS_OUTPUT_LOGFILE | FLAG_HAS_PIPE)) 1391dceed24aSFabien Thomas pmc_close_logfile(); 1392ebccf1e3SJoseph Koshy 13930b86b1bbSFabien Thomas pmcstat_cleanup(); 1394ebccf1e3SJoseph Koshy 13957fbf3da2SJoseph Koshy /* check if the driver lost any samples or events */ 13967fbf3da2SJoseph Koshy if (check_driver_stats) { 13977fbf3da2SJoseph Koshy if (pmc_get_driver_stats(&ds_end) < 0) 139837d6f8a9SDavid E. O'Brien err(EX_OSERR, 139937d6f8a9SDavid E. O'Brien "ERROR: Cannot retrieve driver statistics"); 140049874f6eSJoseph Koshy if (ds_start.pm_intr_bufferfull != ds_end.pm_intr_bufferfull && 140149874f6eSJoseph Koshy args.pa_verbosity > 0) 1402e64ba55dSJonathan T. Looney warnx( 1403e64ba55dSJonathan T. Looney "WARNING: sampling was paused at least %u time%s.\n" 1404e64ba55dSJonathan T. Looney "Please consider tuning the \"kern.hwpmc.nsamples\" tunable.", 1405e64ba55dSJonathan T. Looney ds_end.pm_intr_bufferfull - 1406e64ba55dSJonathan T. Looney ds_start.pm_intr_bufferfull, 1407e64ba55dSJonathan T. Looney ((ds_end.pm_intr_bufferfull - 1408e64ba55dSJonathan T. Looney ds_start.pm_intr_bufferfull) != 1) ? "s" : "" 140937d6f8a9SDavid E. O'Brien ); 14107fbf3da2SJoseph Koshy if (ds_start.pm_buffer_requests_failed != 141149874f6eSJoseph Koshy ds_end.pm_buffer_requests_failed && 141249874f6eSJoseph Koshy args.pa_verbosity > 0) 1413e64ba55dSJonathan T. Looney warnx( 1414e64ba55dSJonathan T. Looney "WARNING: at least %u event%s were discarded while running.\n" 1415e64ba55dSJonathan T. Looney "Please consider tuning the \"kern.hwpmc.nbuffers\" tunable.", 1416e64ba55dSJonathan T. Looney ds_end.pm_buffer_requests_failed - 1417e64ba55dSJonathan T. Looney ds_start.pm_buffer_requests_failed, 1418e64ba55dSJonathan T. Looney ((ds_end.pm_buffer_requests_failed - 1419e64ba55dSJonathan T. Looney ds_start.pm_buffer_requests_failed) != 1) ? "s" : "" 142037d6f8a9SDavid E. O'Brien ); 14217fbf3da2SJoseph Koshy } 14227fbf3da2SJoseph Koshy 14237fbf3da2SJoseph Koshy exit(EX_OK); 1424ebccf1e3SJoseph Koshy } 1425