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" |
d20deb64 | 16 | #include "session.h" |
45694aa7 | 17 | #include "tool.h" |
7b2567c1 | 18 | |
54a3cf59 AV |
19 | int build_id__mark_dso_hit(struct perf_tool *tool __maybe_unused, |
20 | union perf_event *event, | |
21 | struct perf_sample *sample __maybe_unused, | |
22 | struct perf_evsel *evsel __maybe_unused, | |
23 | struct machine *machine) | |
7b2567c1 ACM |
24 | { |
25 | struct addr_location al; | |
26 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
314add6b AH |
27 | struct thread *thread = machine__findnew_thread(machine, event->ip.pid, |
28 | event->ip.pid); | |
7b2567c1 ACM |
29 | |
30 | if (thread == NULL) { | |
31 | pr_err("problem processing %d event, skipping it.\n", | |
32 | event->header.type); | |
33 | return -1; | |
34 | } | |
35 | ||
743eb868 | 36 | thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, |
326f59bf | 37 | event->ip.ip, &al); |
7b2567c1 ACM |
38 | |
39 | if (al.map != NULL) | |
40 | al.map->dso->hit = 1; | |
41 | ||
42 | return 0; | |
43 | } | |
44 | ||
1d037ca1 | 45 | static int perf_event__exit_del_thread(struct perf_tool *tool __maybe_unused, |
d20deb64 | 46 | union perf_event *event, |
1d037ca1 IT |
47 | struct perf_sample *sample |
48 | __maybe_unused, | |
743eb868 | 49 | struct machine *machine) |
591765fd | 50 | { |
314add6b AH |
51 | struct thread *thread = machine__findnew_thread(machine, |
52 | event->fork.pid, | |
53 | event->fork.tid); | |
591765fd | 54 | |
8115d60c ACM |
55 | dump_printf("(%d:%d):(%d:%d)\n", event->fork.pid, event->fork.tid, |
56 | event->fork.ppid, event->fork.ptid); | |
591765fd ACM |
57 | |
58 | if (thread) { | |
743eb868 ACM |
59 | rb_erase(&thread->rb_node, &machine->threads); |
60 | machine->last_match = NULL; | |
591765fd ACM |
61 | thread__delete(thread); |
62 | } | |
63 | ||
64 | return 0; | |
65 | } | |
66 | ||
45694aa7 | 67 | struct perf_tool build_id__mark_dso_hit_ops = { |
7b2567c1 | 68 | .sample = build_id__mark_dso_hit, |
8115d60c | 69 | .mmap = perf_event__process_mmap, |
f62d3f0f | 70 | .fork = perf_event__process_fork, |
8115d60c | 71 | .exit = perf_event__exit_del_thread, |
299c3452 SE |
72 | .attr = perf_event__process_attr, |
73 | .build_id = perf_event__process_build_id, | |
7b2567c1 | 74 | }; |
b36f19d5 | 75 | |
ebb296c2 JO |
76 | int build_id__sprintf(const u8 *build_id, int len, char *bf) |
77 | { | |
78 | char *bid = bf; | |
79 | const u8 *raw = build_id; | |
80 | int i; | |
81 | ||
82 | for (i = 0; i < len; ++i) { | |
83 | sprintf(bid, "%02x", *raw); | |
84 | ++raw; | |
85 | bid += 2; | |
86 | } | |
87 | ||
88 | return raw - build_id; | |
89 | } | |
90 | ||
b36f19d5 ACM |
91 | char *dso__build_id_filename(struct dso *self, char *bf, size_t size) |
92 | { | |
93 | char build_id_hex[BUILD_ID_SIZE * 2 + 1]; | |
b36f19d5 ACM |
94 | |
95 | if (!self->has_build_id) | |
96 | return NULL; | |
97 | ||
98 | build_id__sprintf(self->build_id, sizeof(self->build_id), build_id_hex); | |
b36f19d5 | 99 | if (bf == NULL) { |
45de34bb SE |
100 | if (asprintf(&bf, "%s/.build-id/%.2s/%s", buildid_dir, |
101 | build_id_hex, build_id_hex + 2) < 0) | |
b36f19d5 ACM |
102 | return NULL; |
103 | } else | |
45de34bb SE |
104 | snprintf(bf, size, "%s/.build-id/%.2s/%s", buildid_dir, |
105 | build_id_hex, build_id_hex + 2); | |
b36f19d5 ACM |
106 | return bf; |
107 | } |