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 | 7b2567c | 2010-02-03 16:52:04 -0200 | [diff] [blame] | 16 | |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame^] | 17 | static int build_id__mark_dso_hit(event_t *event, |
| 18 | struct sample_data *sample __used, |
| 19 | struct perf_session *session) |
Arnaldo Carvalho de Melo | 7b2567c | 2010-02-03 16:52:04 -0200 | [diff] [blame] | 20 | { |
| 21 | struct addr_location al; |
| 22 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
| 23 | struct thread *thread = perf_session__findnew(session, event->ip.pid); |
| 24 | |
| 25 | if (thread == NULL) { |
| 26 | pr_err("problem processing %d event, skipping it.\n", |
| 27 | event->header.type); |
| 28 | return -1; |
| 29 | } |
| 30 | |
| 31 | thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION, |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 32 | event->ip.pid, event->ip.ip, &al); |
Arnaldo Carvalho de Melo | 7b2567c | 2010-02-03 16:52:04 -0200 | [diff] [blame] | 33 | |
| 34 | if (al.map != NULL) |
| 35 | al.map->dso->hit = 1; |
| 36 | |
| 37 | return 0; |
| 38 | } |
| 39 | |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame^] | 40 | static int event__exit_del_thread(event_t *self, struct sample_data *sample __used, |
| 41 | struct perf_session *session) |
Arnaldo Carvalho de Melo | 591765f | 2010-07-30 18:28:42 -0300 | [diff] [blame] | 42 | { |
| 43 | struct thread *thread = perf_session__findnew(session, self->fork.tid); |
| 44 | |
| 45 | dump_printf("(%d:%d):(%d:%d)\n", self->fork.pid, self->fork.tid, |
| 46 | self->fork.ppid, self->fork.ptid); |
| 47 | |
| 48 | if (thread) { |
| 49 | rb_erase(&thread->rb_node, &session->threads); |
| 50 | session->last_match = NULL; |
| 51 | thread__delete(thread); |
| 52 | } |
| 53 | |
| 54 | return 0; |
| 55 | } |
| 56 | |
Arnaldo Carvalho de Melo | 7b2567c | 2010-02-03 16:52:04 -0200 | [diff] [blame] | 57 | struct perf_event_ops build_id__mark_dso_hit_ops = { |
| 58 | .sample = build_id__mark_dso_hit, |
| 59 | .mmap = event__process_mmap, |
| 60 | .fork = event__process_task, |
Arnaldo Carvalho de Melo | 591765f | 2010-07-30 18:28:42 -0300 | [diff] [blame] | 61 | .exit = event__exit_del_thread, |
Arnaldo Carvalho de Melo | 7b2567c | 2010-02-03 16:52:04 -0200 | [diff] [blame] | 62 | }; |
Arnaldo Carvalho de Melo | b36f19d | 2010-05-20 12:15:33 -0300 | [diff] [blame] | 63 | |
| 64 | char *dso__build_id_filename(struct dso *self, char *bf, size_t size) |
| 65 | { |
| 66 | char build_id_hex[BUILD_ID_SIZE * 2 + 1]; |
Arnaldo Carvalho de Melo | b36f19d | 2010-05-20 12:15:33 -0300 | [diff] [blame] | 67 | |
| 68 | if (!self->has_build_id) |
| 69 | return NULL; |
| 70 | |
| 71 | build_id__sprintf(self->build_id, sizeof(self->build_id), build_id_hex); |
Arnaldo Carvalho de Melo | b36f19d | 2010-05-20 12:15:33 -0300 | [diff] [blame] | 72 | if (bf == NULL) { |
Stephane Eranian | 45de34b | 2010-06-01 21:25:01 +0200 | [diff] [blame] | 73 | if (asprintf(&bf, "%s/.build-id/%.2s/%s", buildid_dir, |
| 74 | build_id_hex, build_id_hex + 2) < 0) |
Arnaldo Carvalho de Melo | b36f19d | 2010-05-20 12:15:33 -0300 | [diff] [blame] | 75 | return NULL; |
| 76 | } else |
Stephane Eranian | 45de34b | 2010-06-01 21:25:01 +0200 | [diff] [blame] | 77 | snprintf(bf, size, "%s/.build-id/%.2s/%s", buildid_dir, |
| 78 | build_id_hex, build_id_hex + 2); |
Arnaldo Carvalho de Melo | b36f19d | 2010-05-20 12:15:33 -0300 | [diff] [blame] | 79 | return bf; |
| 80 | } |