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Commit | Line | Data |
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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" |
d20deb64 | 16 | #include "session.h" |
45694aa7 | 17 | #include "tool.h" |
7b2567c1 | 18 | |
1d037ca1 | 19 | static int build_id__mark_dso_hit(struct perf_tool *tool __maybe_unused, |
d20deb64 | 20 | union perf_event *event, |
1d037ca1 IT |
21 | struct perf_sample *sample __maybe_unused, |
22 | struct perf_evsel *evsel __maybe_unused, | |
743eb868 | 23 | struct machine *machine) |
7b2567c1 ACM |
24 | { |
25 | struct addr_location al; | |
26 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
743eb868 | 27 | struct thread *thread = machine__findnew_thread(machine, event->ip.pid); |
7b2567c1 ACM |
28 | |
29 | if (thread == NULL) { | |
30 | pr_err("problem processing %d event, skipping it.\n", | |
31 | event->header.type); | |
32 | return -1; | |
33 | } | |
34 | ||
743eb868 ACM |
35 | thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, |
36 | event->ip.ip, &al); | |
7b2567c1 ACM |
37 | |
38 | if (al.map != NULL) | |
39 | al.map->dso->hit = 1; | |
40 | ||
41 | return 0; | |
42 | } | |
43 | ||
1d037ca1 | 44 | static int perf_event__exit_del_thread(struct perf_tool *tool __maybe_unused, |
d20deb64 | 45 | union perf_event *event, |
1d037ca1 IT |
46 | struct perf_sample *sample |
47 | __maybe_unused, | |
743eb868 | 48 | struct machine *machine) |
591765fd | 49 | { |
743eb868 | 50 | struct thread *thread = machine__findnew_thread(machine, event->fork.tid); |
591765fd | 51 | |
8115d60c ACM |
52 | dump_printf("(%d:%d):(%d:%d)\n", event->fork.pid, event->fork.tid, |
53 | event->fork.ppid, event->fork.ptid); | |
591765fd ACM |
54 | |
55 | if (thread) { | |
743eb868 ACM |
56 | rb_erase(&thread->rb_node, &machine->threads); |
57 | machine->last_match = NULL; | |
591765fd ACM |
58 | thread__delete(thread); |
59 | } | |
60 | ||
61 | return 0; | |
62 | } | |
63 | ||
45694aa7 | 64 | struct perf_tool build_id__mark_dso_hit_ops = { |
7b2567c1 | 65 | .sample = build_id__mark_dso_hit, |
8115d60c ACM |
66 | .mmap = perf_event__process_mmap, |
67 | .fork = perf_event__process_task, | |
68 | .exit = perf_event__exit_del_thread, | |
299c3452 SE |
69 | .attr = perf_event__process_attr, |
70 | .build_id = perf_event__process_build_id, | |
7b2567c1 | 71 | }; |
b36f19d5 ACM |
72 | |
73 | char *dso__build_id_filename(struct dso *self, char *bf, size_t size) | |
74 | { | |
75 | char build_id_hex[BUILD_ID_SIZE * 2 + 1]; | |
b36f19d5 ACM |
76 | |
77 | if (!self->has_build_id) | |
78 | return NULL; | |
79 | ||
80 | build_id__sprintf(self->build_id, sizeof(self->build_id), build_id_hex); | |
b36f19d5 | 81 | if (bf == NULL) { |
45de34bb SE |
82 | if (asprintf(&bf, "%s/.build-id/%.2s/%s", buildid_dir, |
83 | build_id_hex, build_id_hex + 2) < 0) | |
b36f19d5 ACM |
84 | return NULL; |
85 | } else | |
45de34bb SE |
86 | snprintf(bf, size, "%s/.build-id/%.2s/%s", buildid_dir, |
87 | build_id_hex, build_id_hex + 2); | |
b36f19d5 ACM |
88 | return bf; |
89 | } |