Commit | Line | Data |
---|---|---|
7b2567c1 ACM |
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 | */ | |
b36f19d5 ACM |
9 | #include "util.h" |
10 | #include <stdio.h> | |
7b2567c1 ACM |
11 | #include "build-id.h" |
12 | #include "event.h" | |
13 | #include "symbol.h" | |
14 | #include <linux/kernel.h> | |
591765fd | 15 | #include "debug.h" |
7b2567c1 | 16 | |
8115d60c | 17 | static int build_id__mark_dso_hit(union perf_event *event, |
8d50e5b4 | 18 | struct perf_sample *sample __used, |
9e69c210 | 19 | struct perf_evsel *evsel __used, |
640c03ce | 20 | struct perf_session *session) |
7b2567c1 ACM |
21 | { |
22 | struct addr_location al; | |
23 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
24 | struct thread *thread = perf_session__findnew(session, event->ip.pid); | |
25 | ||
26 | if (thread == NULL) { | |
27 | pr_err("problem processing %d event, skipping it.\n", | |
28 | event->header.type); | |
29 | return -1; | |
30 | } | |
31 | ||
32 | thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION, | |
a1645ce1 | 33 | event->ip.pid, event->ip.ip, &al); |
7b2567c1 ACM |
34 | |
35 | if (al.map != NULL) | |
36 | al.map->dso->hit = 1; | |
37 | ||
38 | return 0; | |
39 | } | |
40 | ||
8115d60c ACM |
41 | static int perf_event__exit_del_thread(union perf_event *event, |
42 | struct perf_sample *sample __used, | |
43 | struct perf_session *session) | |
591765fd | 44 | { |
8115d60c | 45 | struct thread *thread = perf_session__findnew(session, event->fork.tid); |
591765fd | 46 | |
8115d60c ACM |
47 | dump_printf("(%d:%d):(%d:%d)\n", event->fork.pid, event->fork.tid, |
48 | event->fork.ppid, event->fork.ptid); | |
591765fd ACM |
49 | |
50 | if (thread) { | |
51 | rb_erase(&thread->rb_node, &session->threads); | |
52 | session->last_match = NULL; | |
53 | thread__delete(thread); | |
54 | } | |
55 | ||
56 | return 0; | |
57 | } | |
58 | ||
7b2567c1 ACM |
59 | struct perf_event_ops build_id__mark_dso_hit_ops = { |
60 | .sample = build_id__mark_dso_hit, | |
8115d60c ACM |
61 | .mmap = perf_event__process_mmap, |
62 | .fork = perf_event__process_task, | |
63 | .exit = perf_event__exit_del_thread, | |
7b2567c1 | 64 | }; |
b36f19d5 ACM |
65 | |
66 | char *dso__build_id_filename(struct dso *self, char *bf, size_t size) | |
67 | { | |
68 | char build_id_hex[BUILD_ID_SIZE * 2 + 1]; | |
b36f19d5 ACM |
69 | |
70 | if (!self->has_build_id) | |
71 | return NULL; | |
72 | ||
73 | build_id__sprintf(self->build_id, sizeof(self->build_id), build_id_hex); | |
b36f19d5 | 74 | if (bf == NULL) { |
45de34bb SE |
75 | if (asprintf(&bf, "%s/.build-id/%.2s/%s", buildid_dir, |
76 | build_id_hex, build_id_hex + 2) < 0) | |
b36f19d5 ACM |
77 | return NULL; |
78 | } else | |
45de34bb SE |
79 | snprintf(bf, size, "%s/.build-id/%.2s/%s", buildid_dir, |
80 | build_id_hex, build_id_hex + 2); | |
b36f19d5 ACM |
81 | return bf; |
82 | } |