Ingo Molnar | abaff32 | 2009-06-02 22:59:57 +0200 | [diff] [blame] | 1 | /* |
Ingo Molnar | bf9e187 | 2009-06-02 23:37:05 +0200 | [diff] [blame] | 2 | * builtin-record.c |
| 3 | * |
| 4 | * Builtin record command: Record the profile of a workload |
| 5 | * (or a CPU, or a PID) into the perf.data output file - for |
| 6 | * later analysis via perf report. |
Ingo Molnar | abaff32 | 2009-06-02 22:59:57 +0200 | [diff] [blame] | 7 | */ |
Ingo Molnar | 16f762a | 2009-05-27 09:10:38 +0200 | [diff] [blame] | 8 | #include "builtin.h" |
Ingo Molnar | bf9e187 | 2009-06-02 23:37:05 +0200 | [diff] [blame] | 9 | |
| 10 | #include "perf.h" |
| 11 | |
Arnaldo Carvalho de Melo | 6122e4e | 2010-02-03 16:52:05 -0200 | [diff] [blame] | 12 | #include "util/build-id.h" |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 13 | #include "util/util.h" |
Ingo Molnar | 0e9b20b | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 14 | #include "util/parse-options.h" |
Ingo Molnar | 8ad8db3 | 2009-05-26 11:10:09 +0200 | [diff] [blame] | 15 | #include "util/parse-events.h" |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 16 | |
Arnaldo Carvalho de Melo | 8f651ea | 2014-10-09 16:12:24 -0300 | [diff] [blame] | 17 | #include "util/callchain.h" |
Arnaldo Carvalho de Melo | f14d570 | 2014-10-17 12:17:40 -0300 | [diff] [blame] | 18 | #include "util/cgroup.h" |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 19 | #include "util/header.h" |
Frederic Weisbecker | 66e274f | 2009-08-12 11:07:25 +0200 | [diff] [blame] | 20 | #include "util/event.h" |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 21 | #include "util/evlist.h" |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 22 | #include "util/evsel.h" |
Frederic Weisbecker | 8f28827a | 2009-08-16 22:05:48 +0200 | [diff] [blame] | 23 | #include "util/debug.h" |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 24 | #include "util/session.h" |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 25 | #include "util/tool.h" |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 26 | #include "util/symbol.h" |
Paul Mackerras | a12b51c | 2010-03-10 20:36:09 +1100 | [diff] [blame] | 27 | #include "util/cpumap.h" |
Arnaldo Carvalho de Melo | fd78260 | 2011-01-18 15:15:24 -0200 | [diff] [blame] | 28 | #include "util/thread_map.h" |
Jiri Olsa | f5fc141 | 2013-10-15 16:27:32 +0200 | [diff] [blame] | 29 | #include "util/data.h" |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 30 | |
Peter Zijlstra | 97124d5 | 2009-06-02 15:52:24 +0200 | [diff] [blame] | 31 | #include <unistd.h> |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 32 | #include <sched.h> |
Arnaldo Carvalho de Melo | a41794c | 2010-05-18 18:29:23 -0300 | [diff] [blame] | 33 | #include <sys/mman.h> |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 34 | |
Bernhard Rosenkraenzer | 78da39f | 2012-10-08 09:43:26 +0300 | [diff] [blame] | 35 | |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 36 | struct record { |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 37 | struct perf_tool tool; |
Arnaldo Carvalho de Melo | b400679 | 2013-12-19 14:43:45 -0300 | [diff] [blame] | 38 | struct record_opts opts; |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 39 | u64 bytes_written; |
Jiri Olsa | f5fc141 | 2013-10-15 16:27:32 +0200 | [diff] [blame] | 40 | struct perf_data_file file; |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 41 | struct perf_evlist *evlist; |
| 42 | struct perf_session *session; |
| 43 | const char *progname; |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 44 | int realtime_prio; |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 45 | bool no_buildid; |
| 46 | bool no_buildid_cache; |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 47 | long samples; |
Arnaldo Carvalho de Melo | 0f82ebc | 2011-11-08 14:41:57 -0200 | [diff] [blame] | 48 | }; |
Ingo Molnar | a21ca2c | 2009-06-06 09:58:57 +0200 | [diff] [blame] | 49 | |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 50 | static int record__write(struct record *rec, void *bf, size_t size) |
Peter Zijlstra | f597055 | 2009-06-18 23:22:55 +0200 | [diff] [blame] | 51 | { |
Arnaldo Carvalho de Melo | cf8b2e6 | 2013-12-19 14:26:26 -0300 | [diff] [blame] | 52 | if (perf_data_file__write(rec->session->file, bf, size) < 0) { |
Jiri Olsa | 50a9b86 | 2013-11-22 13:11:24 +0100 | [diff] [blame] | 53 | pr_err("failed to write perf data, error: %m\n"); |
| 54 | return -1; |
Peter Zijlstra | f597055 | 2009-06-18 23:22:55 +0200 | [diff] [blame] | 55 | } |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 56 | |
Arnaldo Carvalho de Melo | cf8b2e6 | 2013-12-19 14:26:26 -0300 | [diff] [blame] | 57 | rec->bytes_written += size; |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 58 | return 0; |
Peter Zijlstra | f597055 | 2009-06-18 23:22:55 +0200 | [diff] [blame] | 59 | } |
| 60 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 61 | static int process_synthesized_event(struct perf_tool *tool, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 62 | union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 63 | struct perf_sample *sample __maybe_unused, |
| 64 | struct machine *machine __maybe_unused) |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 65 | { |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 66 | struct record *rec = container_of(tool, struct record, tool); |
| 67 | return record__write(rec, event, event->header.size); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 68 | } |
| 69 | |
Arnaldo Carvalho de Melo | e568573 | 2014-09-17 16:42:58 -0300 | [diff] [blame] | 70 | static int record__mmap_read(struct record *rec, int idx) |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 71 | { |
Arnaldo Carvalho de Melo | e568573 | 2014-09-17 16:42:58 -0300 | [diff] [blame] | 72 | struct perf_mmap *md = &rec->evlist->mmap[idx]; |
Arnaldo Carvalho de Melo | 744bd8a | 2011-01-12 17:07:28 -0200 | [diff] [blame] | 73 | unsigned int head = perf_mmap__read_head(md); |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 74 | unsigned int old = md->prev; |
Jiri Olsa | 918512b | 2013-09-12 18:39:35 +0200 | [diff] [blame] | 75 | unsigned char *data = md->base + page_size; |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 76 | unsigned long size; |
| 77 | void *buf; |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 78 | int rc = 0; |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 79 | |
Arnaldo Carvalho de Melo | dc82009 | 2011-01-28 14:49:19 -0200 | [diff] [blame] | 80 | if (old == head) |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 81 | return 0; |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 82 | |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 83 | rec->samples++; |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 84 | |
| 85 | size = head - old; |
| 86 | |
| 87 | if ((old & md->mask) + size != (head & md->mask)) { |
| 88 | buf = &data[old & md->mask]; |
| 89 | size = md->mask + 1 - (old & md->mask); |
| 90 | old += size; |
Ingo Molnar | 021e9f4 | 2009-06-03 19:27:19 +0200 | [diff] [blame] | 91 | |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 92 | if (record__write(rec, buf, size) < 0) { |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 93 | rc = -1; |
| 94 | goto out; |
| 95 | } |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 96 | } |
| 97 | |
| 98 | buf = &data[old & md->mask]; |
| 99 | size = head - old; |
| 100 | old += size; |
Ingo Molnar | 021e9f4 | 2009-06-03 19:27:19 +0200 | [diff] [blame] | 101 | |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 102 | if (record__write(rec, buf, size) < 0) { |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 103 | rc = -1; |
| 104 | goto out; |
| 105 | } |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 106 | |
| 107 | md->prev = old; |
Arnaldo Carvalho de Melo | e568573 | 2014-09-17 16:42:58 -0300 | [diff] [blame] | 108 | perf_evlist__mmap_consume(rec->evlist, idx); |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 109 | out: |
| 110 | return rc; |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 111 | } |
| 112 | |
| 113 | static volatile int done = 0; |
Peter Zijlstra | f7b7c26 | 2009-06-10 15:55:59 +0200 | [diff] [blame] | 114 | static volatile int signr = -1; |
Andi Kleen | 33e49ea | 2011-09-15 14:31:40 -0700 | [diff] [blame] | 115 | static volatile int child_finished = 0; |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 116 | |
Peter Zijlstra | 16c8a10 | 2009-05-05 17:50:27 +0200 | [diff] [blame] | 117 | static void sig_handler(int sig) |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 118 | { |
Andi Kleen | 33e49ea | 2011-09-15 14:31:40 -0700 | [diff] [blame] | 119 | if (sig == SIGCHLD) |
| 120 | child_finished = 1; |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 121 | else |
| 122 | signr = sig; |
Andi Kleen | 33e49ea | 2011-09-15 14:31:40 -0700 | [diff] [blame] | 123 | |
Peter Zijlstra | 16c8a10 | 2009-05-05 17:50:27 +0200 | [diff] [blame] | 124 | done = 1; |
Peter Zijlstra | f7b7c26 | 2009-06-10 15:55:59 +0200 | [diff] [blame] | 125 | } |
| 126 | |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 127 | static void record__sig_exit(void) |
Peter Zijlstra | f7b7c26 | 2009-06-10 15:55:59 +0200 | [diff] [blame] | 128 | { |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 129 | if (signr == -1) |
Peter Zijlstra | f7b7c26 | 2009-06-10 15:55:59 +0200 | [diff] [blame] | 130 | return; |
| 131 | |
| 132 | signal(signr, SIG_DFL); |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 133 | raise(signr); |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 134 | } |
| 135 | |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 136 | static int record__open(struct record *rec) |
Arnaldo Carvalho de Melo | dd7927f | 2011-01-12 14:28:51 -0200 | [diff] [blame] | 137 | { |
Arnaldo Carvalho de Melo | 56e52e8 | 2012-12-13 15:10:58 -0300 | [diff] [blame] | 138 | char msg[512]; |
Jiri Olsa | 6a4bb04 | 2012-08-08 12:22:36 +0200 | [diff] [blame] | 139 | struct perf_evsel *pos; |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 140 | struct perf_evlist *evlist = rec->evlist; |
| 141 | struct perf_session *session = rec->session; |
Arnaldo Carvalho de Melo | b400679 | 2013-12-19 14:43:45 -0300 | [diff] [blame] | 142 | struct record_opts *opts = &rec->opts; |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 143 | int rc = 0; |
Arnaldo Carvalho de Melo | dd7927f | 2011-01-12 14:28:51 -0200 | [diff] [blame] | 144 | |
Arnaldo Carvalho de Melo | f77a951 | 2012-12-10 16:41:31 -0300 | [diff] [blame] | 145 | perf_evlist__config(evlist, opts); |
Jiri Olsa | cac2142 | 2012-11-12 18:34:00 +0100 | [diff] [blame] | 146 | |
Arnaldo Carvalho de Melo | 0050f7a | 2014-01-10 10:37:27 -0300 | [diff] [blame] | 147 | evlist__for_each(evlist, pos) { |
Ingo Molnar | 3da297a | 2009-06-07 17:39:02 +0200 | [diff] [blame] | 148 | try_again: |
Jiri Olsa | 6a4bb04 | 2012-08-08 12:22:36 +0200 | [diff] [blame] | 149 | if (perf_evsel__open(pos, evlist->cpus, evlist->threads) < 0) { |
Arnaldo Carvalho de Melo | 56e52e8 | 2012-12-13 15:10:58 -0300 | [diff] [blame] | 150 | if (perf_evsel__fallback(pos, errno, msg, sizeof(msg))) { |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 151 | if (verbose) |
Arnaldo Carvalho de Melo | c0a5434 | 2012-12-13 14:16:30 -0300 | [diff] [blame] | 152 | ui__warning("%s\n", msg); |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 153 | goto try_again; |
| 154 | } |
David Ahern | ca6a425 | 2011-03-25 13:11:11 -0600 | [diff] [blame] | 155 | |
Arnaldo Carvalho de Melo | 56e52e8 | 2012-12-13 15:10:58 -0300 | [diff] [blame] | 156 | rc = -errno; |
| 157 | perf_evsel__open_strerror(pos, &opts->target, |
| 158 | errno, msg, sizeof(msg)); |
| 159 | ui__error("%s\n", msg); |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 160 | goto out; |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 161 | } |
Li Zefan | c171b55 | 2009-10-15 11:22:07 +0800 | [diff] [blame] | 162 | } |
Arnaldo Carvalho de Melo | a43d3f0 | 2010-12-25 12:12:25 -0200 | [diff] [blame] | 163 | |
Arnaldo Carvalho de Melo | 1491a63 | 2012-09-26 14:43:13 -0300 | [diff] [blame] | 164 | if (perf_evlist__apply_filters(evlist)) { |
Frederic Weisbecker | 0a10247 | 2011-02-26 04:51:54 +0100 | [diff] [blame] | 165 | error("failed to set filter with %d (%s)\n", errno, |
Masami Hiramatsu | 35550da | 2014-08-14 02:22:43 +0000 | [diff] [blame] | 166 | strerror_r(errno, msg, sizeof(msg))); |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 167 | rc = -1; |
| 168 | goto out; |
Frederic Weisbecker | 0a10247 | 2011-02-26 04:51:54 +0100 | [diff] [blame] | 169 | } |
| 170 | |
Nelson Elhage | 18e6093 | 2011-12-19 08:39:31 -0500 | [diff] [blame] | 171 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 172 | if (errno == EPERM) { |
| 173 | pr_err("Permission error mapping pages.\n" |
| 174 | "Consider increasing " |
| 175 | "/proc/sys/kernel/perf_event_mlock_kb,\n" |
| 176 | "or try again with a smaller value of -m/--mmap_pages.\n" |
Adrian Hunter | 53653d7 | 2013-12-09 15:18:40 +0200 | [diff] [blame] | 177 | "(current value: %u)\n", opts->mmap_pages); |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 178 | rc = -errno; |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 179 | } else { |
Masami Hiramatsu | 35550da | 2014-08-14 02:22:43 +0000 | [diff] [blame] | 180 | pr_err("failed to mmap with %d (%s)\n", errno, |
| 181 | strerror_r(errno, msg, sizeof(msg))); |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 182 | rc = -errno; |
| 183 | } |
| 184 | goto out; |
Nelson Elhage | 18e6093 | 2011-12-19 08:39:31 -0500 | [diff] [blame] | 185 | } |
Arnaldo Carvalho de Melo | 0a27d7f | 2011-01-14 15:50:51 -0200 | [diff] [blame] | 186 | |
Jiri Olsa | 563aecb | 2013-06-05 13:35:06 +0200 | [diff] [blame] | 187 | session->evlist = evlist; |
Arnaldo Carvalho de Melo | 7b56cce | 2012-08-01 19:31:00 -0300 | [diff] [blame] | 188 | perf_session__set_id_hdr_size(session); |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 189 | out: |
| 190 | return rc; |
Peter Zijlstra | 16c8a10 | 2009-05-05 17:50:27 +0200 | [diff] [blame] | 191 | } |
| 192 | |
Namhyung Kim | e3d5911 | 2015-01-29 17:06:44 +0900 | [diff] [blame] | 193 | static int process_sample_event(struct perf_tool *tool, |
| 194 | union perf_event *event, |
| 195 | struct perf_sample *sample, |
| 196 | struct perf_evsel *evsel, |
| 197 | struct machine *machine) |
| 198 | { |
| 199 | struct record *rec = container_of(tool, struct record, tool); |
| 200 | |
| 201 | rec->samples++; |
| 202 | |
| 203 | return build_id__mark_dso_hit(tool, event, sample, evsel, machine); |
| 204 | } |
| 205 | |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 206 | static int process_buildids(struct record *rec) |
Arnaldo Carvalho de Melo | 6122e4e | 2010-02-03 16:52:05 -0200 | [diff] [blame] | 207 | { |
Jiri Olsa | f5fc141 | 2013-10-15 16:27:32 +0200 | [diff] [blame] | 208 | struct perf_data_file *file = &rec->file; |
| 209 | struct perf_session *session = rec->session; |
Arnaldo Carvalho de Melo | 6122e4e | 2010-02-03 16:52:05 -0200 | [diff] [blame] | 210 | |
Namhyung Kim | 42aa276 | 2015-01-29 17:06:48 +0900 | [diff] [blame] | 211 | u64 size = lseek(perf_data_file__fd(file), 0, SEEK_CUR); |
Arnaldo Carvalho de Melo | 9f591fd | 2010-03-11 15:53:11 -0300 | [diff] [blame] | 212 | if (size == 0) |
| 213 | return 0; |
| 214 | |
Namhyung Kim | 4ac30cf | 2015-01-29 17:06:43 +0900 | [diff] [blame] | 215 | file->size = size; |
| 216 | |
Namhyung Kim | 00dc865 | 2014-11-04 10:14:32 +0900 | [diff] [blame] | 217 | /* |
| 218 | * During this process, it'll load kernel map and replace the |
| 219 | * dso->long_name to a real pathname it found. In this case |
| 220 | * we prefer the vmlinux path like |
| 221 | * /lib/modules/3.16.4/build/vmlinux |
| 222 | * |
| 223 | * rather than build-id path (in debug directory). |
| 224 | * $HOME/.debug/.build-id/f0/6e17aa50adf4d00b88925e03775de107611551 |
| 225 | */ |
| 226 | symbol_conf.ignore_vmlinux_buildid = true; |
| 227 | |
Namhyung Kim | e3d5911 | 2015-01-29 17:06:44 +0900 | [diff] [blame] | 228 | return perf_session__process_events(session, &rec->tool); |
Arnaldo Carvalho de Melo | 6122e4e | 2010-02-03 16:52:05 -0200 | [diff] [blame] | 229 | } |
| 230 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 231 | static void perf_event__synthesize_guest_os(struct machine *machine, void *data) |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 232 | { |
| 233 | int err; |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 234 | struct perf_tool *tool = data; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 235 | /* |
| 236 | *As for guest kernel when processing subcommand record&report, |
| 237 | *we arrange module mmap prior to guest kernel mmap and trigger |
| 238 | *a preload dso because default guest module symbols are loaded |
| 239 | *from guest kallsyms instead of /lib/modules/XXX/XXX. This |
| 240 | *method is used to avoid symbol missing when the first addr is |
| 241 | *in module instead of in guest kernel. |
| 242 | */ |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 243 | err = perf_event__synthesize_modules(tool, process_synthesized_event, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 244 | machine); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 245 | if (err < 0) |
| 246 | pr_err("Couldn't record guest kernel [%d]'s reference" |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 247 | " relocation symbol.\n", machine->pid); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 248 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 249 | /* |
| 250 | * We use _stext for guest kernel because guest kernel's /proc/kallsyms |
| 251 | * have no _text sometimes. |
| 252 | */ |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 253 | err = perf_event__synthesize_kernel_mmap(tool, process_synthesized_event, |
Adrian Hunter | 0ae617b | 2014-01-29 16:14:40 +0200 | [diff] [blame] | 254 | machine); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 255 | if (err < 0) |
| 256 | pr_err("Couldn't record guest kernel [%d]'s reference" |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 257 | " relocation symbol.\n", machine->pid); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 258 | } |
| 259 | |
Frederic Weisbecker | 9840280 | 2010-05-02 22:05:29 +0200 | [diff] [blame] | 260 | static struct perf_event_header finished_round_event = { |
| 261 | .size = sizeof(struct perf_event_header), |
| 262 | .type = PERF_RECORD_FINISHED_ROUND, |
| 263 | }; |
| 264 | |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 265 | static int record__mmap_read_all(struct record *rec) |
Frederic Weisbecker | 9840280 | 2010-05-02 22:05:29 +0200 | [diff] [blame] | 266 | { |
Jiri Olsa | dcabb50 | 2014-07-25 16:56:16 +0200 | [diff] [blame] | 267 | u64 bytes_written = rec->bytes_written; |
Peter Zijlstra | 0e2e63d | 2010-05-20 14:45:26 +0200 | [diff] [blame] | 268 | int i; |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 269 | int rc = 0; |
Frederic Weisbecker | 9840280 | 2010-05-02 22:05:29 +0200 | [diff] [blame] | 270 | |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 271 | for (i = 0; i < rec->evlist->nr_mmaps; i++) { |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 272 | if (rec->evlist->mmap[i].base) { |
Arnaldo Carvalho de Melo | e568573 | 2014-09-17 16:42:58 -0300 | [diff] [blame] | 273 | if (record__mmap_read(rec, i) != 0) { |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 274 | rc = -1; |
| 275 | goto out; |
| 276 | } |
| 277 | } |
Frederic Weisbecker | 9840280 | 2010-05-02 22:05:29 +0200 | [diff] [blame] | 278 | } |
| 279 | |
Jiri Olsa | dcabb50 | 2014-07-25 16:56:16 +0200 | [diff] [blame] | 280 | /* |
| 281 | * Mark the round finished in case we wrote |
| 282 | * at least one event. |
| 283 | */ |
| 284 | if (bytes_written != rec->bytes_written) |
| 285 | rc = record__write(rec, &finished_round_event, sizeof(finished_round_event)); |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 286 | |
| 287 | out: |
| 288 | return rc; |
Frederic Weisbecker | 9840280 | 2010-05-02 22:05:29 +0200 | [diff] [blame] | 289 | } |
| 290 | |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 291 | static void record__init_features(struct record *rec) |
David Ahern | 57706ab | 2013-11-06 11:41:34 -0700 | [diff] [blame] | 292 | { |
David Ahern | 57706ab | 2013-11-06 11:41:34 -0700 | [diff] [blame] | 293 | struct perf_session *session = rec->session; |
| 294 | int feat; |
| 295 | |
| 296 | for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++) |
| 297 | perf_header__set_feat(&session->header, feat); |
| 298 | |
| 299 | if (rec->no_buildid) |
| 300 | perf_header__clear_feat(&session->header, HEADER_BUILD_ID); |
| 301 | |
Arnaldo Carvalho de Melo | 3e2be2d | 2014-01-03 15:03:26 -0300 | [diff] [blame] | 302 | if (!have_tracepoints(&rec->evlist->entries)) |
David Ahern | 57706ab | 2013-11-06 11:41:34 -0700 | [diff] [blame] | 303 | perf_header__clear_feat(&session->header, HEADER_TRACING_DATA); |
| 304 | |
| 305 | if (!rec->opts.branch_stack) |
| 306 | perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK); |
| 307 | } |
| 308 | |
Arnaldo Carvalho de Melo | f33cbe7 | 2014-01-02 15:11:25 -0300 | [diff] [blame] | 309 | static volatile int workload_exec_errno; |
| 310 | |
| 311 | /* |
| 312 | * perf_evlist__prepare_workload will send a SIGUSR1 |
| 313 | * if the fork fails, since we asked by setting its |
| 314 | * want_signal to true. |
| 315 | */ |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 316 | static void workload_exec_failed_signal(int signo __maybe_unused, |
| 317 | siginfo_t *info, |
Arnaldo Carvalho de Melo | f33cbe7 | 2014-01-02 15:11:25 -0300 | [diff] [blame] | 318 | void *ucontext __maybe_unused) |
| 319 | { |
| 320 | workload_exec_errno = info->si_value.sival_int; |
| 321 | done = 1; |
Arnaldo Carvalho de Melo | f33cbe7 | 2014-01-02 15:11:25 -0300 | [diff] [blame] | 322 | child_finished = 1; |
| 323 | } |
| 324 | |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 325 | static int __cmd_record(struct record *rec, int argc, const char **argv) |
Peter Zijlstra | 16c8a10 | 2009-05-05 17:50:27 +0200 | [diff] [blame] | 326 | { |
David Ahern | 57706ab | 2013-11-06 11:41:34 -0700 | [diff] [blame] | 327 | int err; |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 328 | int status = 0; |
Peter Zijlstra | 8b41266 | 2009-09-17 19:59:05 +0200 | [diff] [blame] | 329 | unsigned long waking = 0; |
Zhang, Yanmin | 46be604 | 2010-03-18 11:36:04 -0300 | [diff] [blame] | 330 | const bool forks = argc > 0; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 331 | struct machine *machine; |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 332 | struct perf_tool *tool = &rec->tool; |
Arnaldo Carvalho de Melo | b400679 | 2013-12-19 14:43:45 -0300 | [diff] [blame] | 333 | struct record_opts *opts = &rec->opts; |
Jiri Olsa | f5fc141 | 2013-10-15 16:27:32 +0200 | [diff] [blame] | 334 | struct perf_data_file *file = &rec->file; |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 335 | struct perf_session *session; |
Arnaldo Carvalho de Melo | 6dcf45ef | 2014-08-13 11:33:59 -0300 | [diff] [blame] | 336 | bool disabled = false, draining = false; |
Namhyung Kim | 42aa276 | 2015-01-29 17:06:48 +0900 | [diff] [blame] | 337 | int fd; |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 338 | |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 339 | rec->progname = argv[0]; |
Andi Kleen | 33e49ea | 2011-09-15 14:31:40 -0700 | [diff] [blame] | 340 | |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 341 | atexit(record__sig_exit); |
Peter Zijlstra | f597055 | 2009-06-18 23:22:55 +0200 | [diff] [blame] | 342 | signal(SIGCHLD, sig_handler); |
| 343 | signal(SIGINT, sig_handler); |
David Ahern | 804f7ac | 2013-05-06 12:24:23 -0600 | [diff] [blame] | 344 | signal(SIGTERM, sig_handler); |
Peter Zijlstra | f597055 | 2009-06-18 23:22:55 +0200 | [diff] [blame] | 345 | |
Jiri Olsa | f5fc141 | 2013-10-15 16:27:32 +0200 | [diff] [blame] | 346 | session = perf_session__new(file, false, NULL); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 347 | if (session == NULL) { |
Adrien BAK | ffa9188 | 2014-04-18 11:00:43 +0900 | [diff] [blame] | 348 | pr_err("Perf session creation failed.\n"); |
Arnaldo Carvalho de Melo | a9a70bb | 2009-11-17 01:18:11 -0200 | [diff] [blame] | 349 | return -1; |
| 350 | } |
| 351 | |
Namhyung Kim | 42aa276 | 2015-01-29 17:06:48 +0900 | [diff] [blame] | 352 | fd = perf_data_file__fd(file); |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 353 | rec->session = session; |
| 354 | |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 355 | record__init_features(rec); |
Stephane Eranian | 330aa67 | 2012-03-08 23:47:46 +0100 | [diff] [blame] | 356 | |
Arnaldo Carvalho de Melo | d4db3f1 | 2009-12-27 21:36:57 -0200 | [diff] [blame] | 357 | if (forks) { |
Arnaldo Carvalho de Melo | 3e2be2d | 2014-01-03 15:03:26 -0300 | [diff] [blame] | 358 | err = perf_evlist__prepare_workload(rec->evlist, &opts->target, |
Jiri Olsa | f5fc141 | 2013-10-15 16:27:32 +0200 | [diff] [blame] | 359 | argv, file->is_pipe, |
Arnaldo Carvalho de Melo | 735f7e0 | 2014-01-03 14:56:49 -0300 | [diff] [blame] | 360 | workload_exec_failed_signal); |
Arnaldo Carvalho de Melo | 35b9d88 | 2011-11-09 08:47:15 -0200 | [diff] [blame] | 361 | if (err < 0) { |
| 362 | pr_err("Couldn't run the workload!\n"); |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 363 | status = err; |
Arnaldo Carvalho de Melo | 35b9d88 | 2011-11-09 08:47:15 -0200 | [diff] [blame] | 364 | goto out_delete_session; |
Jens Axboe | 0a5ac84 | 2009-08-12 11:18:01 +0200 | [diff] [blame] | 365 | } |
Peter Zijlstra | 856e966 | 2009-12-16 17:55:55 +0100 | [diff] [blame] | 366 | } |
| 367 | |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 368 | if (record__open(rec) != 0) { |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 369 | err = -1; |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 370 | goto out_child; |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 371 | } |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 372 | |
Arnaldo Carvalho de Melo | 3e2be2d | 2014-01-03 15:03:26 -0300 | [diff] [blame] | 373 | if (!rec->evlist->nr_groups) |
Namhyung Kim | a8bb559 | 2013-01-22 18:09:31 +0900 | [diff] [blame] | 374 | perf_header__clear_feat(&session->header, HEADER_GROUP_DESC); |
| 375 | |
Jiri Olsa | f5fc141 | 2013-10-15 16:27:32 +0200 | [diff] [blame] | 376 | if (file->is_pipe) { |
Namhyung Kim | 42aa276 | 2015-01-29 17:06:48 +0900 | [diff] [blame] | 377 | err = perf_header__write_pipe(fd); |
Tom Zanussi | 529870e | 2010-04-01 23:59:16 -0500 | [diff] [blame] | 378 | if (err < 0) |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 379 | goto out_child; |
Jiri Olsa | 563aecb | 2013-06-05 13:35:06 +0200 | [diff] [blame] | 380 | } else { |
Namhyung Kim | 42aa276 | 2015-01-29 17:06:48 +0900 | [diff] [blame] | 381 | err = perf_session__write_header(session, rec->evlist, fd, false); |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 382 | if (err < 0) |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 383 | goto out_child; |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 384 | } |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 385 | |
David Ahern | d366549 | 2012-02-06 15:27:52 -0700 | [diff] [blame] | 386 | if (!rec->no_buildid |
Robert Richter | e20960c | 2011-12-07 10:02:55 +0100 | [diff] [blame] | 387 | && !perf_header__has_feat(&session->header, HEADER_BUILD_ID)) { |
David Ahern | d366549 | 2012-02-06 15:27:52 -0700 | [diff] [blame] | 388 | pr_err("Couldn't generate buildids. " |
Robert Richter | e20960c | 2011-12-07 10:02:55 +0100 | [diff] [blame] | 389 | "Use --no-buildid to profile anyway.\n"); |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 390 | err = -1; |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 391 | goto out_child; |
Robert Richter | e20960c | 2011-12-07 10:02:55 +0100 | [diff] [blame] | 392 | } |
| 393 | |
Arnaldo Carvalho de Melo | 34ba512 | 2012-12-19 09:04:24 -0300 | [diff] [blame] | 394 | machine = &session->machines.host; |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 395 | |
Jiri Olsa | f5fc141 | 2013-10-15 16:27:32 +0200 | [diff] [blame] | 396 | if (file->is_pipe) { |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 397 | err = perf_event__synthesize_attrs(tool, session, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 398 | process_synthesized_event); |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 399 | if (err < 0) { |
| 400 | pr_err("Couldn't synthesize attrs.\n"); |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 401 | goto out_child; |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 402 | } |
Tom Zanussi | cd19a03 | 2010-04-01 23:59:20 -0500 | [diff] [blame] | 403 | |
Arnaldo Carvalho de Melo | 3e2be2d | 2014-01-03 15:03:26 -0300 | [diff] [blame] | 404 | if (have_tracepoints(&rec->evlist->entries)) { |
Tom Zanussi | 63e0c77 | 2010-05-03 00:14:48 -0500 | [diff] [blame] | 405 | /* |
| 406 | * FIXME err <= 0 here actually means that |
| 407 | * there were no tracepoints so its not really |
| 408 | * an error, just that we don't need to |
| 409 | * synthesize anything. We really have to |
| 410 | * return this more properly and also |
| 411 | * propagate errors that now are calling die() |
| 412 | */ |
Namhyung Kim | 42aa276 | 2015-01-29 17:06:48 +0900 | [diff] [blame] | 413 | err = perf_event__synthesize_tracing_data(tool, fd, rec->evlist, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 414 | process_synthesized_event); |
Tom Zanussi | 63e0c77 | 2010-05-03 00:14:48 -0500 | [diff] [blame] | 415 | if (err <= 0) { |
| 416 | pr_err("Couldn't record tracing data.\n"); |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 417 | goto out_child; |
Tom Zanussi | 63e0c77 | 2010-05-03 00:14:48 -0500 | [diff] [blame] | 418 | } |
David Ahern | f34b900 | 2013-11-06 11:41:35 -0700 | [diff] [blame] | 419 | rec->bytes_written += err; |
Tom Zanussi | 63e0c77 | 2010-05-03 00:14:48 -0500 | [diff] [blame] | 420 | } |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 421 | } |
| 422 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 423 | err = perf_event__synthesize_kernel_mmap(tool, process_synthesized_event, |
Adrian Hunter | 0ae617b | 2014-01-29 16:14:40 +0200 | [diff] [blame] | 424 | machine); |
Arnaldo Carvalho de Melo | c1a3a4b | 2010-11-22 14:01:55 -0200 | [diff] [blame] | 425 | if (err < 0) |
| 426 | pr_err("Couldn't record kernel reference relocation symbol\n" |
| 427 | "Symbol resolution may be skewed if relocation was used (e.g. kexec).\n" |
| 428 | "Check /proc/kallsyms permission or run as root.\n"); |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 429 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 430 | err = perf_event__synthesize_modules(tool, process_synthesized_event, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 431 | machine); |
Arnaldo Carvalho de Melo | c1a3a4b | 2010-11-22 14:01:55 -0200 | [diff] [blame] | 432 | if (err < 0) |
| 433 | pr_err("Couldn't record kernel module information.\n" |
| 434 | "Symbol resolution may be skewed if relocation was used (e.g. kexec).\n" |
| 435 | "Check /proc/modules permission or run as root.\n"); |
| 436 | |
Arnaldo Carvalho de Melo | 7e383de | 2012-12-18 15:49:27 -0300 | [diff] [blame] | 437 | if (perf_guest) { |
Arnaldo Carvalho de Melo | 876650e | 2012-12-18 19:15:48 -0300 | [diff] [blame] | 438 | machines__process_guests(&session->machines, |
| 439 | perf_event__synthesize_guest_os, tool); |
Arnaldo Carvalho de Melo | 7e383de | 2012-12-18 15:49:27 -0300 | [diff] [blame] | 440 | } |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 441 | |
Arnaldo Carvalho de Melo | 3e2be2d | 2014-01-03 15:03:26 -0300 | [diff] [blame] | 442 | err = __machine__synthesize_threads(machine, tool, &opts->target, rec->evlist->threads, |
Arnaldo Carvalho de Melo | a33fbd5 | 2013-11-11 11:36:12 -0300 | [diff] [blame] | 443 | process_synthesized_event, opts->sample_address); |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 444 | if (err != 0) |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 445 | goto out_child; |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 446 | |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 447 | if (rec->realtime_prio) { |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 448 | struct sched_param param; |
| 449 | |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 450 | param.sched_priority = rec->realtime_prio; |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 451 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
Arnaldo Carvalho de Melo | 6beba7a | 2009-10-21 17:34:06 -0200 | [diff] [blame] | 452 | pr_err("Could not set realtime priority.\n"); |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 453 | err = -1; |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 454 | goto out_child; |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 455 | } |
| 456 | } |
| 457 | |
Jiri Olsa | 774cb49 | 2012-11-12 18:34:01 +0100 | [diff] [blame] | 458 | /* |
| 459 | * When perf is starting the traced process, all the events |
| 460 | * (apart from group members) have enable_on_exec=1 set, |
| 461 | * so don't spoil it by prematurely enabling them. |
| 462 | */ |
Andi Kleen | 6619a53 | 2014-01-11 13:38:27 -0800 | [diff] [blame] | 463 | if (!target__none(&opts->target) && !opts->initial_delay) |
Arnaldo Carvalho de Melo | 3e2be2d | 2014-01-03 15:03:26 -0300 | [diff] [blame] | 464 | perf_evlist__enable(rec->evlist); |
David Ahern | 764e16a3 | 2011-08-25 10:17:55 -0600 | [diff] [blame] | 465 | |
Peter Zijlstra | 856e966 | 2009-12-16 17:55:55 +0100 | [diff] [blame] | 466 | /* |
| 467 | * Let the child rip |
| 468 | */ |
Arnaldo Carvalho de Melo | 735f7e0 | 2014-01-03 14:56:49 -0300 | [diff] [blame] | 469 | if (forks) |
Arnaldo Carvalho de Melo | 3e2be2d | 2014-01-03 15:03:26 -0300 | [diff] [blame] | 470 | perf_evlist__start_workload(rec->evlist); |
Peter Zijlstra | 856e966 | 2009-12-16 17:55:55 +0100 | [diff] [blame] | 471 | |
Andi Kleen | 6619a53 | 2014-01-11 13:38:27 -0800 | [diff] [blame] | 472 | if (opts->initial_delay) { |
| 473 | usleep(opts->initial_delay * 1000); |
| 474 | perf_evlist__enable(rec->evlist); |
| 475 | } |
| 476 | |
Peter Zijlstra | 649c48a | 2009-06-24 21:12:48 +0200 | [diff] [blame] | 477 | for (;;) { |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 478 | int hits = rec->samples; |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 479 | |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 480 | if (record__mmap_read_all(rec) < 0) { |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 481 | err = -1; |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 482 | goto out_child; |
David Ahern | 8d3eca2 | 2012-08-26 12:24:47 -0600 | [diff] [blame] | 483 | } |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 484 | |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 485 | if (hits == rec->samples) { |
Arnaldo Carvalho de Melo | 6dcf45ef | 2014-08-13 11:33:59 -0300 | [diff] [blame] | 486 | if (done || draining) |
Peter Zijlstra | 649c48a | 2009-06-24 21:12:48 +0200 | [diff] [blame] | 487 | break; |
Arnaldo Carvalho de Melo | f66a889 | 2014-08-18 17:25:59 -0300 | [diff] [blame] | 488 | err = perf_evlist__poll(rec->evlist, -1); |
Jiri Olsa | a515114 | 2014-06-02 13:44:23 -0400 | [diff] [blame] | 489 | /* |
| 490 | * Propagate error, only if there's any. Ignore positive |
| 491 | * number of returned events and interrupt error. |
| 492 | */ |
| 493 | if (err > 0 || (err < 0 && errno == EINTR)) |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 494 | err = 0; |
Peter Zijlstra | 8b41266 | 2009-09-17 19:59:05 +0200 | [diff] [blame] | 495 | waking++; |
Arnaldo Carvalho de Melo | 6dcf45ef | 2014-08-13 11:33:59 -0300 | [diff] [blame] | 496 | |
| 497 | if (perf_evlist__filter_pollfd(rec->evlist, POLLERR | POLLHUP) == 0) |
| 498 | draining = true; |
Peter Zijlstra | 8b41266 | 2009-09-17 19:59:05 +0200 | [diff] [blame] | 499 | } |
| 500 | |
Jiri Olsa | 774cb49 | 2012-11-12 18:34:01 +0100 | [diff] [blame] | 501 | /* |
| 502 | * When perf is starting the traced process, at the end events |
| 503 | * die with the process and we wait for that. Thus no need to |
| 504 | * disable events in this case. |
| 505 | */ |
Arnaldo Carvalho de Melo | 602ad87 | 2013-11-12 16:46:16 -0300 | [diff] [blame] | 506 | if (done && !disabled && !target__none(&opts->target)) { |
Arnaldo Carvalho de Melo | 3e2be2d | 2014-01-03 15:03:26 -0300 | [diff] [blame] | 507 | perf_evlist__disable(rec->evlist); |
Jiri Olsa | 2711926 | 2012-11-12 18:34:02 +0100 | [diff] [blame] | 508 | disabled = true; |
| 509 | } |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 510 | } |
| 511 | |
Arnaldo Carvalho de Melo | f33cbe7 | 2014-01-02 15:11:25 -0300 | [diff] [blame] | 512 | if (forks && workload_exec_errno) { |
Masami Hiramatsu | 35550da | 2014-08-14 02:22:43 +0000 | [diff] [blame] | 513 | char msg[STRERR_BUFSIZE]; |
Arnaldo Carvalho de Melo | f33cbe7 | 2014-01-02 15:11:25 -0300 | [diff] [blame] | 514 | const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg)); |
| 515 | pr_err("Workload failed: %s\n", emsg); |
| 516 | err = -1; |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 517 | goto out_child; |
Arnaldo Carvalho de Melo | f33cbe7 | 2014-01-02 15:11:25 -0300 | [diff] [blame] | 518 | } |
| 519 | |
Namhyung Kim | e3d5911 | 2015-01-29 17:06:44 +0900 | [diff] [blame] | 520 | if (!quiet) |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 521 | fprintf(stderr, "[ perf record: Woken up %ld times to write data ]\n", waking); |
Arnaldo Carvalho de Melo | b44308f | 2010-10-26 15:20:09 -0200 | [diff] [blame] | 522 | |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 523 | out_child: |
| 524 | if (forks) { |
| 525 | int exit_status; |
Ingo Molnar | addc278 | 2009-06-02 23:43:11 +0200 | [diff] [blame] | 526 | |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 527 | if (!child_finished) |
| 528 | kill(rec->evlist->workload.pid, SIGTERM); |
| 529 | |
| 530 | wait(&exit_status); |
| 531 | |
| 532 | if (err < 0) |
| 533 | status = err; |
| 534 | else if (WIFEXITED(exit_status)) |
| 535 | status = WEXITSTATUS(exit_status); |
| 536 | else if (WIFSIGNALED(exit_status)) |
| 537 | signr = WTERMSIG(exit_status); |
| 538 | } else |
| 539 | status = err; |
| 540 | |
Namhyung Kim | e3d5911 | 2015-01-29 17:06:44 +0900 | [diff] [blame] | 541 | /* this will be recalculated during process_buildids() */ |
| 542 | rec->samples = 0; |
| 543 | |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 544 | if (!err && !file->is_pipe) { |
| 545 | rec->session->header.data_size += rec->bytes_written; |
| 546 | |
| 547 | if (!rec->no_buildid) |
| 548 | process_buildids(rec); |
Namhyung Kim | 42aa276 | 2015-01-29 17:06:48 +0900 | [diff] [blame] | 549 | perf_session__write_header(rec->session, rec->evlist, fd, true); |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 550 | } |
Arnaldo Carvalho de Melo | 39d17da | 2010-07-29 14:08:55 -0300 | [diff] [blame] | 551 | |
Namhyung Kim | e3d5911 | 2015-01-29 17:06:44 +0900 | [diff] [blame] | 552 | if (!err && !quiet) { |
| 553 | char samples[128]; |
| 554 | |
| 555 | if (rec->samples) |
| 556 | scnprintf(samples, sizeof(samples), |
| 557 | " (%" PRIu64 " samples)", rec->samples); |
| 558 | else |
| 559 | samples[0] = '\0'; |
| 560 | |
| 561 | fprintf(stderr, "[ perf record: Captured and wrote %.3f MB %s%s ]\n", |
| 562 | perf_data_file__size(file) / 1024.0 / 1024.0, |
| 563 | file->path, samples); |
| 564 | } |
| 565 | |
Arnaldo Carvalho de Melo | 39d17da | 2010-07-29 14:08:55 -0300 | [diff] [blame] | 566 | out_delete_session: |
| 567 | perf_session__delete(session); |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 568 | return status; |
Peter Zijlstra | de9ac07 | 2009-04-08 15:01:31 +0200 | [diff] [blame] | 569 | } |
Ingo Molnar | 0e9b20b | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 570 | |
Roberto Agostino Vitillo | bdfebd8 | 2012-02-09 23:21:02 +0100 | [diff] [blame] | 571 | #define BRANCH_OPT(n, m) \ |
| 572 | { .name = n, .mode = (m) } |
| 573 | |
| 574 | #define BRANCH_END { .name = NULL } |
| 575 | |
| 576 | struct branch_mode { |
| 577 | const char *name; |
| 578 | int mode; |
| 579 | }; |
| 580 | |
| 581 | static const struct branch_mode branch_modes[] = { |
| 582 | BRANCH_OPT("u", PERF_SAMPLE_BRANCH_USER), |
| 583 | BRANCH_OPT("k", PERF_SAMPLE_BRANCH_KERNEL), |
| 584 | BRANCH_OPT("hv", PERF_SAMPLE_BRANCH_HV), |
| 585 | BRANCH_OPT("any", PERF_SAMPLE_BRANCH_ANY), |
| 586 | BRANCH_OPT("any_call", PERF_SAMPLE_BRANCH_ANY_CALL), |
| 587 | BRANCH_OPT("any_ret", PERF_SAMPLE_BRANCH_ANY_RETURN), |
| 588 | BRANCH_OPT("ind_call", PERF_SAMPLE_BRANCH_IND_CALL), |
Andi Kleen | 0126d49 | 2013-09-20 07:40:42 -0700 | [diff] [blame] | 589 | BRANCH_OPT("abort_tx", PERF_SAMPLE_BRANCH_ABORT_TX), |
| 590 | BRANCH_OPT("in_tx", PERF_SAMPLE_BRANCH_IN_TX), |
| 591 | BRANCH_OPT("no_tx", PERF_SAMPLE_BRANCH_NO_TX), |
Anshuman Khandual | 0fffa5d | 2014-05-22 12:50:08 +0530 | [diff] [blame] | 592 | BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND), |
Roberto Agostino Vitillo | bdfebd8 | 2012-02-09 23:21:02 +0100 | [diff] [blame] | 593 | BRANCH_END |
| 594 | }; |
| 595 | |
| 596 | static int |
Stephane Eranian | a5aabda | 2012-03-08 23:47:45 +0100 | [diff] [blame] | 597 | parse_branch_stack(const struct option *opt, const char *str, int unset) |
Roberto Agostino Vitillo | bdfebd8 | 2012-02-09 23:21:02 +0100 | [diff] [blame] | 598 | { |
| 599 | #define ONLY_PLM \ |
| 600 | (PERF_SAMPLE_BRANCH_USER |\ |
| 601 | PERF_SAMPLE_BRANCH_KERNEL |\ |
| 602 | PERF_SAMPLE_BRANCH_HV) |
| 603 | |
| 604 | uint64_t *mode = (uint64_t *)opt->value; |
| 605 | const struct branch_mode *br; |
Stephane Eranian | a5aabda | 2012-03-08 23:47:45 +0100 | [diff] [blame] | 606 | char *s, *os = NULL, *p; |
Roberto Agostino Vitillo | bdfebd8 | 2012-02-09 23:21:02 +0100 | [diff] [blame] | 607 | int ret = -1; |
| 608 | |
Stephane Eranian | a5aabda | 2012-03-08 23:47:45 +0100 | [diff] [blame] | 609 | if (unset) |
| 610 | return 0; |
Roberto Agostino Vitillo | bdfebd8 | 2012-02-09 23:21:02 +0100 | [diff] [blame] | 611 | |
Stephane Eranian | a5aabda | 2012-03-08 23:47:45 +0100 | [diff] [blame] | 612 | /* |
| 613 | * cannot set it twice, -b + --branch-filter for instance |
| 614 | */ |
| 615 | if (*mode) |
Roberto Agostino Vitillo | bdfebd8 | 2012-02-09 23:21:02 +0100 | [diff] [blame] | 616 | return -1; |
| 617 | |
Stephane Eranian | a5aabda | 2012-03-08 23:47:45 +0100 | [diff] [blame] | 618 | /* str may be NULL in case no arg is passed to -b */ |
| 619 | if (str) { |
| 620 | /* because str is read-only */ |
| 621 | s = os = strdup(str); |
| 622 | if (!s) |
| 623 | return -1; |
Roberto Agostino Vitillo | bdfebd8 | 2012-02-09 23:21:02 +0100 | [diff] [blame] | 624 | |
Stephane Eranian | a5aabda | 2012-03-08 23:47:45 +0100 | [diff] [blame] | 625 | for (;;) { |
| 626 | p = strchr(s, ','); |
| 627 | if (p) |
| 628 | *p = '\0'; |
| 629 | |
| 630 | for (br = branch_modes; br->name; br++) { |
| 631 | if (!strcasecmp(s, br->name)) |
| 632 | break; |
| 633 | } |
| 634 | if (!br->name) { |
| 635 | ui__warning("unknown branch filter %s," |
| 636 | " check man page\n", s); |
| 637 | goto error; |
| 638 | } |
| 639 | |
| 640 | *mode |= br->mode; |
| 641 | |
| 642 | if (!p) |
Roberto Agostino Vitillo | bdfebd8 | 2012-02-09 23:21:02 +0100 | [diff] [blame] | 643 | break; |
Stephane Eranian | a5aabda | 2012-03-08 23:47:45 +0100 | [diff] [blame] | 644 | |
| 645 | s = p + 1; |
Roberto Agostino Vitillo | bdfebd8 | 2012-02-09 23:21:02 +0100 | [diff] [blame] | 646 | } |
Roberto Agostino Vitillo | bdfebd8 | 2012-02-09 23:21:02 +0100 | [diff] [blame] | 647 | } |
| 648 | ret = 0; |
| 649 | |
Stephane Eranian | a5aabda | 2012-03-08 23:47:45 +0100 | [diff] [blame] | 650 | /* default to any branch */ |
Roberto Agostino Vitillo | bdfebd8 | 2012-02-09 23:21:02 +0100 | [diff] [blame] | 651 | if ((*mode & ~ONLY_PLM) == 0) { |
Stephane Eranian | a5aabda | 2012-03-08 23:47:45 +0100 | [diff] [blame] | 652 | *mode = PERF_SAMPLE_BRANCH_ANY; |
Roberto Agostino Vitillo | bdfebd8 | 2012-02-09 23:21:02 +0100 | [diff] [blame] | 653 | } |
| 654 | error: |
| 655 | free(os); |
| 656 | return ret; |
| 657 | } |
| 658 | |
Namhyung Kim | 72a128a | 2014-09-23 10:01:41 +0900 | [diff] [blame] | 659 | static void callchain_debug(void) |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 660 | { |
Jiri Olsa | a601fdf | 2014-02-03 12:44:43 +0100 | [diff] [blame] | 661 | static const char *str[CALLCHAIN_MAX] = { "NONE", "FP", "DWARF" }; |
| 662 | |
Namhyung Kim | 72a128a | 2014-09-23 10:01:41 +0900 | [diff] [blame] | 663 | pr_debug("callchain: type %s\n", str[callchain_param.record_mode]); |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 664 | |
Namhyung Kim | 72a128a | 2014-09-23 10:01:41 +0900 | [diff] [blame] | 665 | if (callchain_param.record_mode == CALLCHAIN_DWARF) |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 666 | pr_debug("callchain: stack dump size %d\n", |
Namhyung Kim | 72a128a | 2014-09-23 10:01:41 +0900 | [diff] [blame] | 667 | callchain_param.dump_size); |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 668 | } |
| 669 | |
Namhyung Kim | 72a128a | 2014-09-23 10:01:41 +0900 | [diff] [blame] | 670 | int record_parse_callchain_opt(const struct option *opt __maybe_unused, |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 671 | const char *arg, |
| 672 | int unset) |
| 673 | { |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 674 | int ret; |
| 675 | |
Namhyung Kim | 72a128a | 2014-09-23 10:01:41 +0900 | [diff] [blame] | 676 | callchain_param.enabled = !unset; |
Jiri Olsa | eb853e8 | 2014-02-03 12:44:42 +0100 | [diff] [blame] | 677 | |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 678 | /* --no-call-graph */ |
| 679 | if (unset) { |
Namhyung Kim | 72a128a | 2014-09-23 10:01:41 +0900 | [diff] [blame] | 680 | callchain_param.record_mode = CALLCHAIN_NONE; |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 681 | pr_debug("callchain: disabled\n"); |
| 682 | return 0; |
| 683 | } |
| 684 | |
Namhyung Kim | f7f084f | 2014-09-23 10:01:42 +0900 | [diff] [blame] | 685 | ret = parse_callchain_record_opt(arg); |
Jiri Olsa | 26d3302 | 2012-08-07 15:20:47 +0200 | [diff] [blame] | 686 | if (!ret) |
Namhyung Kim | 72a128a | 2014-09-23 10:01:41 +0900 | [diff] [blame] | 687 | callchain_debug(); |
Jiri Olsa | 26d3302 | 2012-08-07 15:20:47 +0200 | [diff] [blame] | 688 | |
| 689 | return ret; |
| 690 | } |
| 691 | |
Namhyung Kim | 72a128a | 2014-09-23 10:01:41 +0900 | [diff] [blame] | 692 | int record_callchain_opt(const struct option *opt __maybe_unused, |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 693 | const char *arg __maybe_unused, |
| 694 | int unset __maybe_unused) |
| 695 | { |
Namhyung Kim | 72a128a | 2014-09-23 10:01:41 +0900 | [diff] [blame] | 696 | callchain_param.enabled = true; |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 697 | |
Namhyung Kim | 72a128a | 2014-09-23 10:01:41 +0900 | [diff] [blame] | 698 | if (callchain_param.record_mode == CALLCHAIN_NONE) |
| 699 | callchain_param.record_mode = CALLCHAIN_FP; |
Jiri Olsa | eb853e8 | 2014-02-03 12:44:42 +0100 | [diff] [blame] | 700 | |
Namhyung Kim | 72a128a | 2014-09-23 10:01:41 +0900 | [diff] [blame] | 701 | callchain_debug(); |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 702 | return 0; |
| 703 | } |
| 704 | |
Jiri Olsa | eb853e8 | 2014-02-03 12:44:42 +0100 | [diff] [blame] | 705 | static int perf_record_config(const char *var, const char *value, void *cb) |
| 706 | { |
Jiri Olsa | eb853e8 | 2014-02-03 12:44:42 +0100 | [diff] [blame] | 707 | if (!strcmp(var, "record.call-graph")) |
Namhyung Kim | 5a2e5e8 | 2014-09-23 10:01:44 +0900 | [diff] [blame] | 708 | var = "call-graph.record-mode"; /* fall-through */ |
Jiri Olsa | eb853e8 | 2014-02-03 12:44:42 +0100 | [diff] [blame] | 709 | |
| 710 | return perf_default_config(var, value, cb); |
| 711 | } |
| 712 | |
Namhyung Kim | e5b2c20 | 2014-10-23 00:15:46 +0900 | [diff] [blame] | 713 | static const char * const __record_usage[] = { |
Mike Galbraith | 9e096753 | 2009-05-28 16:25:34 +0200 | [diff] [blame] | 714 | "perf record [<options>] [<command>]", |
| 715 | "perf record [<options>] -- <command> [<options>]", |
Ingo Molnar | 0e9b20b | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 716 | NULL |
| 717 | }; |
Namhyung Kim | e5b2c20 | 2014-10-23 00:15:46 +0900 | [diff] [blame] | 718 | const char * const *record_usage = __record_usage; |
Ingo Molnar | 0e9b20b | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 719 | |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 720 | /* |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 721 | * XXX Ideally would be local to cmd_record() and passed to a record__new |
| 722 | * because we need to have access to it in record__exit, that is called |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 723 | * after cmd_record() exits, but since record_options need to be accessible to |
| 724 | * builtin-script, leave it here. |
| 725 | * |
| 726 | * At least we don't ouch it in all the other functions here directly. |
| 727 | * |
| 728 | * Just say no to tons of global variables, sigh. |
| 729 | */ |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 730 | static struct record record = { |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 731 | .opts = { |
Andi Kleen | 8affc2b | 2014-07-31 14:45:04 +0800 | [diff] [blame] | 732 | .sample_time = true, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 733 | .mmap_pages = UINT_MAX, |
| 734 | .user_freq = UINT_MAX, |
| 735 | .user_interval = ULLONG_MAX, |
Arnaldo Carvalho de Melo | 447a601 | 2012-05-22 13:14:18 -0300 | [diff] [blame] | 736 | .freq = 4000, |
Namhyung Kim | d1cb9fc | 2012-05-16 18:45:49 +0900 | [diff] [blame] | 737 | .target = { |
| 738 | .uses_mmap = true, |
Adrian Hunter | 3aa5939 | 2013-11-15 15:52:29 +0200 | [diff] [blame] | 739 | .default_per_cpu = true, |
Namhyung Kim | d1cb9fc | 2012-05-16 18:45:49 +0900 | [diff] [blame] | 740 | }, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 741 | }, |
Namhyung Kim | e3d5911 | 2015-01-29 17:06:44 +0900 | [diff] [blame] | 742 | .tool = { |
| 743 | .sample = process_sample_event, |
| 744 | .fork = perf_event__process_fork, |
| 745 | .comm = perf_event__process_comm, |
| 746 | .mmap = perf_event__process_mmap, |
| 747 | .mmap2 = perf_event__process_mmap2, |
| 748 | }, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 749 | }; |
Frederic Weisbecker | 7865e81 | 2010-04-14 19:42:07 +0200 | [diff] [blame] | 750 | |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 751 | #define CALLCHAIN_HELP "setup and enables call-graph (stack chain/backtrace) recording: " |
Arnaldo Carvalho de Melo | 61eaa3b | 2012-10-01 15:20:58 -0300 | [diff] [blame] | 752 | |
Jiri Olsa | 9ff125d | 2014-01-07 13:47:28 +0100 | [diff] [blame] | 753 | #ifdef HAVE_DWARF_UNWIND_SUPPORT |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 754 | const char record_callchain_help[] = CALLCHAIN_HELP "fp dwarf"; |
Arnaldo Carvalho de Melo | 61eaa3b | 2012-10-01 15:20:58 -0300 | [diff] [blame] | 755 | #else |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 756 | const char record_callchain_help[] = CALLCHAIN_HELP "fp"; |
Arnaldo Carvalho de Melo | 61eaa3b | 2012-10-01 15:20:58 -0300 | [diff] [blame] | 757 | #endif |
| 758 | |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 759 | /* |
| 760 | * XXX Will stay a global variable till we fix builtin-script.c to stop messing |
| 761 | * with it and switch to use the library functions in perf_evlist that came |
Arnaldo Carvalho de Melo | b400679 | 2013-12-19 14:43:45 -0300 | [diff] [blame] | 762 | * from builtin-record.c, i.e. use record_opts, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 763 | * perf_evlist__prepare_workload, etc instead of fork+exec'in 'perf record', |
| 764 | * using pipes, etc. |
| 765 | */ |
Namhyung Kim | e5b2c20 | 2014-10-23 00:15:46 +0900 | [diff] [blame] | 766 | struct option __record_options[] = { |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 767 | OPT_CALLBACK('e', "event", &record.evlist, "event", |
Thomas Gleixner | 86847b6 | 2009-06-06 12:24:17 +0200 | [diff] [blame] | 768 | "event selector. use 'perf list' to list available events", |
Jiri Olsa | f120f9d | 2011-07-14 11:25:32 +0200 | [diff] [blame] | 769 | parse_events_option), |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 770 | OPT_CALLBACK(0, "filter", &record.evlist, "filter", |
Li Zefan | c171b55 | 2009-10-15 11:22:07 +0800 | [diff] [blame] | 771 | "event filter", parse_filter), |
Namhyung Kim | bea0340 | 2012-04-26 14:15:15 +0900 | [diff] [blame] | 772 | OPT_STRING('p', "pid", &record.opts.target.pid, "pid", |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 773 | "record events on existing process id"), |
Namhyung Kim | bea0340 | 2012-04-26 14:15:15 +0900 | [diff] [blame] | 774 | OPT_STRING('t', "tid", &record.opts.target.tid, "tid", |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 775 | "record events on existing thread id"), |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 776 | OPT_INTEGER('r', "realtime", &record.realtime_prio, |
Ingo Molnar | 0e9b20b | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 777 | "collect data with this RT SCHED_FIFO priority"), |
Arnaldo Carvalho de Melo | 509051e | 2014-01-14 17:52:14 -0300 | [diff] [blame] | 778 | OPT_BOOLEAN(0, "no-buffering", &record.opts.no_buffering, |
Kirill Smelkov | acac03f | 2011-01-12 17:59:36 +0300 | [diff] [blame] | 779 | "collect data without buffering"), |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 780 | OPT_BOOLEAN('R', "raw-samples", &record.opts.raw_samples, |
Frederic Weisbecker | daac07b | 2009-08-13 10:27:19 +0200 | [diff] [blame] | 781 | "collect raw sample records from all opened counters"), |
Namhyung Kim | bea0340 | 2012-04-26 14:15:15 +0900 | [diff] [blame] | 782 | OPT_BOOLEAN('a', "all-cpus", &record.opts.target.system_wide, |
Ingo Molnar | 0e9b20b | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 783 | "system-wide collection from all CPUs"), |
Namhyung Kim | bea0340 | 2012-04-26 14:15:15 +0900 | [diff] [blame] | 784 | OPT_STRING('C', "cpu", &record.opts.target.cpu_list, "cpu", |
Stephane Eranian | c45c6ea | 2010-05-28 12:00:01 +0200 | [diff] [blame] | 785 | "list of cpus to monitor"), |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 786 | OPT_U64('c', "count", &record.opts.user_interval, "event period to sample"), |
Jiri Olsa | f5fc141 | 2013-10-15 16:27:32 +0200 | [diff] [blame] | 787 | OPT_STRING('o', "output", &record.file.path, "file", |
Ingo Molnar | abaff32 | 2009-06-02 22:59:57 +0200 | [diff] [blame] | 788 | "output file name"), |
Adrian Hunter | 69e7e5b | 2013-11-18 11:55:57 +0200 | [diff] [blame] | 789 | OPT_BOOLEAN_SET('i', "no-inherit", &record.opts.no_inherit, |
| 790 | &record.opts.no_inherit_set, |
| 791 | "child tasks do not inherit counters"), |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 792 | OPT_UINTEGER('F', "freq", &record.opts.user_freq, "profile at this frequency"), |
Jiri Olsa | 994a1f7 | 2013-09-01 12:36:12 +0200 | [diff] [blame] | 793 | OPT_CALLBACK('m', "mmap-pages", &record.opts.mmap_pages, "pages", |
| 794 | "number of mmap data pages", |
| 795 | perf_evlist__parse_mmap_pages), |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 796 | OPT_BOOLEAN(0, "group", &record.opts.group, |
Lin Ming | 43bece7 | 2011-08-17 18:42:07 +0800 | [diff] [blame] | 797 | "put the counters into a counter group"), |
Jiri Olsa | 09b0fd4 | 2013-10-26 16:25:33 +0200 | [diff] [blame] | 798 | OPT_CALLBACK_NOOPT('g', NULL, &record.opts, |
| 799 | NULL, "enables call-graph recording" , |
| 800 | &record_callchain_opt), |
| 801 | OPT_CALLBACK(0, "call-graph", &record.opts, |
| 802 | "mode[,dump_size]", record_callchain_help, |
| 803 | &record_parse_callchain_opt), |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 804 | OPT_INCR('v', "verbose", &verbose, |
Ingo Molnar | 3da297a | 2009-06-07 17:39:02 +0200 | [diff] [blame] | 805 | "be more verbose (show counter open errors, etc)"), |
Arnaldo Carvalho de Melo | b44308f | 2010-10-26 15:20:09 -0200 | [diff] [blame] | 806 | OPT_BOOLEAN('q', "quiet", &quiet, "don't print any message"), |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 807 | OPT_BOOLEAN('s', "stat", &record.opts.inherit_stat, |
Peter Zijlstra | 649c48a | 2009-06-24 21:12:48 +0200 | [diff] [blame] | 808 | "per thread counts"), |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 809 | OPT_BOOLEAN('d', "data", &record.opts.sample_address, |
Anton Blanchard | 4bba828 | 2009-07-16 15:44:29 +0200 | [diff] [blame] | 810 | "Sample addresses"), |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 811 | OPT_BOOLEAN('T', "timestamp", &record.opts.sample_time, "Sample timestamps"), |
Andrew Vagin | 3e76ac7 | 2011-12-20 17:32:45 +0300 | [diff] [blame] | 812 | OPT_BOOLEAN('P', "period", &record.opts.period, "Sample period"), |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 813 | OPT_BOOLEAN('n', "no-samples", &record.opts.no_samples, |
Peter Zijlstra | 649c48a | 2009-06-24 21:12:48 +0200 | [diff] [blame] | 814 | "don't sample"), |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 815 | OPT_BOOLEAN('N', "no-buildid-cache", &record.no_buildid_cache, |
Stephane Eranian | a1ac1d3 | 2010-06-17 11:39:01 +0200 | [diff] [blame] | 816 | "do not update the buildid cache"), |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 817 | OPT_BOOLEAN('B', "no-buildid", &record.no_buildid, |
Arnaldo Carvalho de Melo | baa2f6c | 2010-11-26 19:39:15 -0200 | [diff] [blame] | 818 | "do not collect buildids in perf.data"), |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 819 | OPT_CALLBACK('G', "cgroup", &record.evlist, "name", |
Stephane Eranian | 023695d | 2011-02-14 11:20:01 +0200 | [diff] [blame] | 820 | "monitor event in cgroup name only", |
| 821 | parse_cgroups), |
Arnaldo Carvalho de Melo | a6205a3 | 2014-01-14 17:58:12 -0300 | [diff] [blame] | 822 | OPT_UINTEGER('D', "delay", &record.opts.initial_delay, |
Andi Kleen | 6619a53 | 2014-01-11 13:38:27 -0800 | [diff] [blame] | 823 | "ms to wait before starting measurement after program start"), |
Namhyung Kim | bea0340 | 2012-04-26 14:15:15 +0900 | [diff] [blame] | 824 | OPT_STRING('u', "uid", &record.opts.target.uid_str, "user", |
| 825 | "user to profile"), |
Stephane Eranian | a5aabda | 2012-03-08 23:47:45 +0100 | [diff] [blame] | 826 | |
| 827 | OPT_CALLBACK_NOOPT('b', "branch-any", &record.opts.branch_stack, |
| 828 | "branch any", "sample any taken branches", |
| 829 | parse_branch_stack), |
| 830 | |
| 831 | OPT_CALLBACK('j', "branch-filter", &record.opts.branch_stack, |
| 832 | "branch filter mask", "branch stack filter modes", |
Roberto Agostino Vitillo | bdfebd8 | 2012-02-09 23:21:02 +0100 | [diff] [blame] | 833 | parse_branch_stack), |
Andi Kleen | 0548429 | 2013-01-24 16:10:29 +0100 | [diff] [blame] | 834 | OPT_BOOLEAN('W', "weight", &record.opts.sample_weight, |
| 835 | "sample by weight (on special events only)"), |
Andi Kleen | 475eeab | 2013-09-20 07:40:43 -0700 | [diff] [blame] | 836 | OPT_BOOLEAN(0, "transaction", &record.opts.sample_transaction, |
| 837 | "sample transaction flags (special events only)"), |
Adrian Hunter | 3aa5939 | 2013-11-15 15:52:29 +0200 | [diff] [blame] | 838 | OPT_BOOLEAN(0, "per-thread", &record.opts.target.per_thread, |
| 839 | "use per-thread mmaps"), |
Stephane Eranian | 4b6c517 | 2014-09-24 13:48:41 +0200 | [diff] [blame] | 840 | OPT_BOOLEAN('I', "intr-regs", &record.opts.sample_intr_regs, |
| 841 | "Sample machine registers on interrupt"), |
Ingo Molnar | 0e9b20b | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 842 | OPT_END() |
| 843 | }; |
| 844 | |
Namhyung Kim | e5b2c20 | 2014-10-23 00:15:46 +0900 | [diff] [blame] | 845 | struct option *record_options = __record_options; |
| 846 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 847 | int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused) |
Ingo Molnar | 0e9b20b | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 848 | { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 849 | int err = -ENOMEM; |
Arnaldo Carvalho de Melo | 8c6f45a | 2013-12-19 14:38:03 -0300 | [diff] [blame] | 850 | struct record *rec = &record; |
Namhyung Kim | 16ad2ff | 2012-05-07 14:09:02 +0900 | [diff] [blame] | 851 | char errbuf[BUFSIZ]; |
Ingo Molnar | 0e9b20b | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 852 | |
Arnaldo Carvalho de Melo | 3e2be2d | 2014-01-03 15:03:26 -0300 | [diff] [blame] | 853 | rec->evlist = perf_evlist__new(); |
| 854 | if (rec->evlist == NULL) |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 855 | return -ENOMEM; |
| 856 | |
Jiri Olsa | eb853e8 | 2014-02-03 12:44:42 +0100 | [diff] [blame] | 857 | perf_config(perf_record_config, rec); |
| 858 | |
Tom Zanussi | bca647a | 2010-11-10 08:11:30 -0600 | [diff] [blame] | 859 | argc = parse_options(argc, argv, record_options, record_usage, |
Arnaldo Carvalho de Melo | 655000e | 2009-12-15 20:04:40 -0200 | [diff] [blame] | 860 | PARSE_OPT_STOP_AT_NON_OPTION); |
Arnaldo Carvalho de Melo | 602ad87 | 2013-11-12 16:46:16 -0300 | [diff] [blame] | 861 | if (!argc && target__none(&rec->opts.target)) |
Tom Zanussi | bca647a | 2010-11-10 08:11:30 -0600 | [diff] [blame] | 862 | usage_with_options(record_usage, record_options); |
Ingo Molnar | 0e9b20b | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 863 | |
Namhyung Kim | bea0340 | 2012-04-26 14:15:15 +0900 | [diff] [blame] | 864 | if (nr_cgroups && !rec->opts.target.system_wide) { |
Namhyung Kim | 3780f48 | 2012-05-29 13:22:57 +0900 | [diff] [blame] | 865 | ui__error("cgroup monitoring only available in" |
| 866 | " system-wide mode\n"); |
Stephane Eranian | 023695d | 2011-02-14 11:20:01 +0200 | [diff] [blame] | 867 | usage_with_options(record_usage, record_options); |
| 868 | } |
| 869 | |
Namhyung Kim | 0a7e6d1 | 2014-08-12 15:40:45 +0900 | [diff] [blame] | 870 | symbol__init(NULL); |
Arnaldo Carvalho de Melo | baa2f6c | 2010-11-26 19:39:15 -0200 | [diff] [blame] | 871 | |
Arnaldo Carvalho de Melo | ec80fde | 2011-05-26 09:53:51 -0300 | [diff] [blame] | 872 | if (symbol_conf.kptr_restrict) |
Arnaldo Carvalho de Melo | 646aaea | 2011-05-27 11:00:41 -0300 | [diff] [blame] | 873 | pr_warning( |
| 874 | "WARNING: Kernel address maps (/proc/{kallsyms,modules}) are restricted,\n" |
| 875 | "check /proc/sys/kernel/kptr_restrict.\n\n" |
| 876 | "Samples in kernel functions may not be resolved if a suitable vmlinux\n" |
| 877 | "file is not found in the buildid cache or in the vmlinux path.\n\n" |
| 878 | "Samples in kernel modules won't be resolved at all.\n\n" |
| 879 | "If some relocation was applied (e.g. kexec) symbols may be misresolved\n" |
| 880 | "even with a suitable vmlinux or kallsyms file.\n\n"); |
Arnaldo Carvalho de Melo | ec80fde | 2011-05-26 09:53:51 -0300 | [diff] [blame] | 881 | |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 882 | if (rec->no_buildid_cache || rec->no_buildid) |
Stephane Eranian | a1ac1d3 | 2010-06-17 11:39:01 +0200 | [diff] [blame] | 883 | disable_buildid_cache(); |
Arnaldo Carvalho de Melo | 655000e | 2009-12-15 20:04:40 -0200 | [diff] [blame] | 884 | |
Arnaldo Carvalho de Melo | 3e2be2d | 2014-01-03 15:03:26 -0300 | [diff] [blame] | 885 | if (rec->evlist->nr_entries == 0 && |
| 886 | perf_evlist__add_default(rec->evlist) < 0) { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 887 | pr_err("Not enough memory for event selector list\n"); |
| 888 | goto out_symbol_exit; |
Peter Zijlstra | bbd36e5 | 2009-06-11 23:11:50 +0200 | [diff] [blame] | 889 | } |
Ingo Molnar | 0e9b20b | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 890 | |
Adrian Hunter | 69e7e5b | 2013-11-18 11:55:57 +0200 | [diff] [blame] | 891 | if (rec->opts.target.tid && !rec->opts.no_inherit_set) |
| 892 | rec->opts.no_inherit = true; |
| 893 | |
Arnaldo Carvalho de Melo | 602ad87 | 2013-11-12 16:46:16 -0300 | [diff] [blame] | 894 | err = target__validate(&rec->opts.target); |
Namhyung Kim | 16ad2ff | 2012-05-07 14:09:02 +0900 | [diff] [blame] | 895 | if (err) { |
Arnaldo Carvalho de Melo | 602ad87 | 2013-11-12 16:46:16 -0300 | [diff] [blame] | 896 | target__strerror(&rec->opts.target, err, errbuf, BUFSIZ); |
Namhyung Kim | 16ad2ff | 2012-05-07 14:09:02 +0900 | [diff] [blame] | 897 | ui__warning("%s", errbuf); |
| 898 | } |
Namhyung Kim | 4bd0f2d | 2012-04-26 14:15:18 +0900 | [diff] [blame] | 899 | |
Arnaldo Carvalho de Melo | 602ad87 | 2013-11-12 16:46:16 -0300 | [diff] [blame] | 900 | err = target__parse_uid(&rec->opts.target); |
Namhyung Kim | 16ad2ff | 2012-05-07 14:09:02 +0900 | [diff] [blame] | 901 | if (err) { |
| 902 | int saved_errno = errno; |
| 903 | |
Arnaldo Carvalho de Melo | 602ad87 | 2013-11-12 16:46:16 -0300 | [diff] [blame] | 904 | target__strerror(&rec->opts.target, err, errbuf, BUFSIZ); |
Namhyung Kim | 3780f48 | 2012-05-29 13:22:57 +0900 | [diff] [blame] | 905 | ui__error("%s", errbuf); |
Namhyung Kim | 16ad2ff | 2012-05-07 14:09:02 +0900 | [diff] [blame] | 906 | |
| 907 | err = -saved_errno; |
Namhyung Kim | 8fa60e1 | 2013-03-15 14:48:51 +0900 | [diff] [blame] | 908 | goto out_symbol_exit; |
Namhyung Kim | 16ad2ff | 2012-05-07 14:09:02 +0900 | [diff] [blame] | 909 | } |
Arnaldo Carvalho de Melo | 0d37aa3 | 2012-01-19 14:08:15 -0200 | [diff] [blame] | 910 | |
Namhyung Kim | 16ad2ff | 2012-05-07 14:09:02 +0900 | [diff] [blame] | 911 | err = -ENOMEM; |
Arnaldo Carvalho de Melo | 3e2be2d | 2014-01-03 15:03:26 -0300 | [diff] [blame] | 912 | if (perf_evlist__create_maps(rec->evlist, &rec->opts.target) < 0) |
Arnaldo Carvalho de Melo | dd7927f | 2011-01-12 14:28:51 -0200 | [diff] [blame] | 913 | usage_with_options(record_usage, record_options); |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 914 | |
Arnaldo Carvalho de Melo | b400679 | 2013-12-19 14:43:45 -0300 | [diff] [blame] | 915 | if (record_opts__config(&rec->opts)) { |
Arnaldo Carvalho de Melo | 39d17da | 2010-07-29 14:08:55 -0300 | [diff] [blame] | 916 | err = -EINVAL; |
Arnaldo Carvalho de Melo | 03ad974 | 2014-01-03 15:56:06 -0300 | [diff] [blame] | 917 | goto out_symbol_exit; |
Mike Galbraith | 7e4ff9e | 2009-10-12 07:56:03 +0200 | [diff] [blame] | 918 | } |
| 919 | |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 920 | err = __cmd_record(&record, argc, argv); |
Arnaldo Carvalho de Melo | d65a458 | 2010-07-30 18:31:28 -0300 | [diff] [blame] | 921 | out_symbol_exit: |
Namhyung Kim | 4560471 | 2014-05-12 09:47:24 +0900 | [diff] [blame] | 922 | perf_evlist__delete(rec->evlist); |
Arnaldo Carvalho de Melo | d65a458 | 2010-07-30 18:31:28 -0300 | [diff] [blame] | 923 | symbol__exit(); |
Arnaldo Carvalho de Melo | 39d17da | 2010-07-29 14:08:55 -0300 | [diff] [blame] | 924 | return err; |
Ingo Molnar | 0e9b20b | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 925 | } |