Arnaldo Carvalho de Melo | 7b2567c | 2010-02-03 16:52:04 -0200 | [diff] [blame] | 1 | /* |
| 2 | * build-id.c |
| 3 | * |
| 4 | * build-id support |
| 5 | * |
| 6 | * Copyright (C) 2009, 2010 Red Hat Inc. |
| 7 | * Copyright (C) 2009, 2010 Arnaldo Carvalho de Melo <acme@redhat.com> |
| 8 | */ |
Arnaldo Carvalho de Melo | b36f19d | 2010-05-20 12:15:33 -0300 | [diff] [blame] | 9 | #include "util.h" |
| 10 | #include <stdio.h> |
Arnaldo Carvalho de Melo | 7b2567c | 2010-02-03 16:52:04 -0200 | [diff] [blame] | 11 | #include "build-id.h" |
| 12 | #include "event.h" |
| 13 | #include "symbol.h" |
| 14 | #include <linux/kernel.h> |
Arnaldo Carvalho de Melo | 591765f | 2010-07-30 18:28:42 -0300 | [diff] [blame] | 15 | #include "debug.h" |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 16 | #include "session.h" |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 17 | #include "tool.h" |
Arnaldo Carvalho de Melo | 7b2567c | 2010-02-03 16:52:04 -0200 | [diff] [blame] | 18 | |
Andrew Vagin | 54a3cf5 | 2012-08-07 16:56:05 +0400 | [diff] [blame] | 19 | int build_id__mark_dso_hit(struct perf_tool *tool __maybe_unused, |
| 20 | union perf_event *event, |
Adrian Hunter | ef89325 | 2013-08-27 11:23:06 +0300 | [diff] [blame] | 21 | struct perf_sample *sample, |
Andrew Vagin | 54a3cf5 | 2012-08-07 16:56:05 +0400 | [diff] [blame] | 22 | struct perf_evsel *evsel __maybe_unused, |
| 23 | struct machine *machine) |
Arnaldo Carvalho de Melo | 7b2567c | 2010-02-03 16:52:04 -0200 | [diff] [blame] | 24 | { |
| 25 | struct addr_location al; |
| 26 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
Adrian Hunter | ef89325 | 2013-08-27 11:23:06 +0300 | [diff] [blame] | 27 | struct thread *thread = machine__findnew_thread(machine, sample->pid, |
Namhyung Kim | 13ce34d | 2014-05-12 09:56:42 +0900 | [diff] [blame] | 28 | sample->tid); |
Arnaldo Carvalho de Melo | 7b2567c | 2010-02-03 16:52:04 -0200 | [diff] [blame] | 29 | |
| 30 | if (thread == NULL) { |
| 31 | pr_err("problem processing %d event, skipping it.\n", |
| 32 | event->header.type); |
| 33 | return -1; |
| 34 | } |
| 35 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 36 | thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, |
Adrian Hunter | ef89325 | 2013-08-27 11:23:06 +0300 | [diff] [blame] | 37 | sample->ip, &al); |
Arnaldo Carvalho de Melo | 7b2567c | 2010-02-03 16:52:04 -0200 | [diff] [blame] | 38 | |
| 39 | if (al.map != NULL) |
| 40 | al.map->dso->hit = 1; |
| 41 | |
| 42 | return 0; |
| 43 | } |
| 44 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 45 | static int perf_event__exit_del_thread(struct perf_tool *tool __maybe_unused, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 46 | union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 47 | struct perf_sample *sample |
| 48 | __maybe_unused, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 49 | struct machine *machine) |
Arnaldo Carvalho de Melo | 591765f | 2010-07-30 18:28:42 -0300 | [diff] [blame] | 50 | { |
Adrian Hunter | 314add6 | 2013-08-27 11:23:03 +0300 | [diff] [blame] | 51 | struct thread *thread = machine__findnew_thread(machine, |
| 52 | event->fork.pid, |
| 53 | event->fork.tid); |
Arnaldo Carvalho de Melo | 591765f | 2010-07-30 18:28:42 -0300 | [diff] [blame] | 54 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 55 | dump_printf("(%d:%d):(%d:%d)\n", event->fork.pid, event->fork.tid, |
| 56 | event->fork.ppid, event->fork.ptid); |
Arnaldo Carvalho de Melo | 591765f | 2010-07-30 18:28:42 -0300 | [diff] [blame] | 57 | |
| 58 | if (thread) { |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 59 | rb_erase(&thread->rb_node, &machine->threads); |
| 60 | machine->last_match = NULL; |
Arnaldo Carvalho de Melo | 591765f | 2010-07-30 18:28:42 -0300 | [diff] [blame] | 61 | thread__delete(thread); |
| 62 | } |
| 63 | |
| 64 | return 0; |
| 65 | } |
| 66 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 67 | struct perf_tool build_id__mark_dso_hit_ops = { |
Arnaldo Carvalho de Melo | 7b2567c | 2010-02-03 16:52:04 -0200 | [diff] [blame] | 68 | .sample = build_id__mark_dso_hit, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 69 | .mmap = perf_event__process_mmap, |
Stephane Eranian | 5c5e854 | 2013-08-21 12:10:25 +0200 | [diff] [blame] | 70 | .mmap2 = perf_event__process_mmap2, |
Arnaldo Carvalho de Melo | f62d3f0 | 2012-10-06 15:44:59 -0300 | [diff] [blame] | 71 | .fork = perf_event__process_fork, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 72 | .exit = perf_event__exit_del_thread, |
Stephane Eranian | 299c345 | 2012-05-15 13:28:15 +0200 | [diff] [blame] | 73 | .attr = perf_event__process_attr, |
| 74 | .build_id = perf_event__process_build_id, |
Arnaldo Carvalho de Melo | 7b2567c | 2010-02-03 16:52:04 -0200 | [diff] [blame] | 75 | }; |
Arnaldo Carvalho de Melo | b36f19d | 2010-05-20 12:15:33 -0300 | [diff] [blame] | 76 | |
Jiri Olsa | ebb296c | 2012-10-27 23:18:28 +0200 | [diff] [blame] | 77 | int build_id__sprintf(const u8 *build_id, int len, char *bf) |
| 78 | { |
| 79 | char *bid = bf; |
| 80 | const u8 *raw = build_id; |
| 81 | int i; |
| 82 | |
| 83 | for (i = 0; i < len; ++i) { |
| 84 | sprintf(bid, "%02x", *raw); |
| 85 | ++raw; |
| 86 | bid += 2; |
| 87 | } |
| 88 | |
| 89 | return raw - build_id; |
| 90 | } |
| 91 | |
Arnaldo Carvalho de Melo | 3344996 | 2013-12-10 15:46:29 -0300 | [diff] [blame] | 92 | char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size) |
Arnaldo Carvalho de Melo | b36f19d | 2010-05-20 12:15:33 -0300 | [diff] [blame] | 93 | { |
| 94 | char build_id_hex[BUILD_ID_SIZE * 2 + 1]; |
Arnaldo Carvalho de Melo | b36f19d | 2010-05-20 12:15:33 -0300 | [diff] [blame] | 95 | |
Arnaldo Carvalho de Melo | c824c43 | 2013-10-22 19:01:31 -0300 | [diff] [blame] | 96 | if (!dso->has_build_id) |
Arnaldo Carvalho de Melo | b36f19d | 2010-05-20 12:15:33 -0300 | [diff] [blame] | 97 | return NULL; |
| 98 | |
Arnaldo Carvalho de Melo | c824c43 | 2013-10-22 19:01:31 -0300 | [diff] [blame] | 99 | build_id__sprintf(dso->build_id, sizeof(dso->build_id), build_id_hex); |
Arnaldo Carvalho de Melo | b36f19d | 2010-05-20 12:15:33 -0300 | [diff] [blame] | 100 | if (bf == NULL) { |
Stephane Eranian | 45de34b | 2010-06-01 21:25:01 +0200 | [diff] [blame] | 101 | if (asprintf(&bf, "%s/.build-id/%.2s/%s", buildid_dir, |
| 102 | build_id_hex, build_id_hex + 2) < 0) |
Arnaldo Carvalho de Melo | b36f19d | 2010-05-20 12:15:33 -0300 | [diff] [blame] | 103 | return NULL; |
| 104 | } else |
Stephane Eranian | 45de34b | 2010-06-01 21:25:01 +0200 | [diff] [blame] | 105 | snprintf(bf, size, "%s/.build-id/%.2s/%s", buildid_dir, |
| 106 | build_id_hex, build_id_hex + 2); |
Arnaldo Carvalho de Melo | b36f19d | 2010-05-20 12:15:33 -0300 | [diff] [blame] | 107 | return bf; |
| 108 | } |