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ef12a141 ACM |
1 | /* |
2 | * builtin-buildid-cache.c | |
3 | * | |
4 | * Builtin buildid-cache command: Manages build-id cache | |
5 | * | |
6 | * Copyright (C) 2010, Red Hat Inc. | |
7 | * Copyright (C) 2010, Arnaldo Carvalho de Melo <acme@redhat.com> | |
8 | */ | |
9 | #include "builtin.h" | |
10 | #include "perf.h" | |
11 | #include "util/cache.h" | |
12 | #include "util/debug.h" | |
13 | #include "util/header.h" | |
14 | #include "util/parse-options.h" | |
15 | #include "util/strlist.h" | |
ebb296c2 | 16 | #include "util/build-id.h" |
fbb6976c | 17 | #include "util/session.h" |
4383db88 | 18 | #include "util/symbol.h" |
ef12a141 | 19 | |
ef12a141 ACM |
20 | static int build_id_cache__add_file(const char *filename, const char *debugdir) |
21 | { | |
22 | char sbuild_id[BUILD_ID_SIZE * 2 + 1]; | |
23 | u8 build_id[BUILD_ID_SIZE]; | |
24 | int err; | |
25 | ||
26 | if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) { | |
27 | pr_debug("Couldn't read a build-id in %s\n", filename); | |
28 | return -1; | |
29 | } | |
30 | ||
31 | build_id__sprintf(build_id, sizeof(build_id), sbuild_id); | |
7dbf4dcf JO |
32 | err = build_id_cache__add_s(sbuild_id, debugdir, filename, |
33 | false, false); | |
ef12a141 ACM |
34 | if (verbose) |
35 | pr_info("Adding %s %s: %s\n", sbuild_id, filename, | |
36 | err ? "FAIL" : "Ok"); | |
37 | return err; | |
38 | } | |
39 | ||
472cc83c ACM |
40 | static int build_id_cache__remove_file(const char *filename, |
41 | const char *debugdir) | |
ef12a141 ACM |
42 | { |
43 | u8 build_id[BUILD_ID_SIZE]; | |
44 | char sbuild_id[BUILD_ID_SIZE * 2 + 1]; | |
45 | ||
46 | int err; | |
47 | ||
48 | if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) { | |
49 | pr_debug("Couldn't read a build-id in %s\n", filename); | |
50 | return -1; | |
51 | } | |
52 | ||
53 | build_id__sprintf(build_id, sizeof(build_id), sbuild_id); | |
54 | err = build_id_cache__remove_s(sbuild_id, debugdir); | |
55 | if (verbose) | |
56 | pr_info("Removing %s %s: %s\n", sbuild_id, filename, | |
57 | err ? "FAIL" : "Ok"); | |
58 | ||
59 | return err; | |
60 | } | |
61 | ||
fbb6976c ACM |
62 | static bool dso__missing_buildid_cache(struct dso *dso, int parm __maybe_unused) |
63 | { | |
64 | char filename[PATH_MAX]; | |
65 | u8 build_id[BUILD_ID_SIZE]; | |
66 | ||
67 | if (dso__build_id_filename(dso, filename, sizeof(filename)) && | |
68 | filename__read_build_id(filename, build_id, | |
69 | sizeof(build_id)) != sizeof(build_id)) { | |
70 | if (errno == ENOENT) | |
71 | return false; | |
72 | ||
73 | pr_warning("Problems with %s file, consider removing it from the cache\n", | |
74 | filename); | |
75 | } else if (memcmp(dso->build_id, build_id, sizeof(dso->build_id))) { | |
76 | pr_warning("Problems with %s file, consider removing it from the cache\n", | |
77 | filename); | |
78 | } | |
79 | ||
80 | return true; | |
81 | } | |
82 | ||
83 | static int build_id_cache__fprintf_missing(const char *filename, bool force, FILE *fp) | |
84 | { | |
85 | struct perf_session *session = perf_session__new(filename, O_RDONLY, | |
86 | force, false, NULL); | |
87 | if (session == NULL) | |
88 | return -1; | |
89 | ||
90 | perf_session__fprintf_dsos_buildid(session, fp, dso__missing_buildid_cache, 0); | |
91 | perf_session__delete(session); | |
92 | ||
93 | return 0; | |
94 | } | |
95 | ||
eeb49845 NK |
96 | static int build_id_cache__update_file(const char *filename, |
97 | const char *debugdir) | |
98 | { | |
99 | u8 build_id[BUILD_ID_SIZE]; | |
100 | char sbuild_id[BUILD_ID_SIZE * 2 + 1]; | |
101 | ||
102 | int err; | |
103 | ||
104 | if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) { | |
105 | pr_debug("Couldn't read a build-id in %s\n", filename); | |
106 | return -1; | |
107 | } | |
108 | ||
109 | build_id__sprintf(build_id, sizeof(build_id), sbuild_id); | |
110 | err = build_id_cache__remove_s(sbuild_id, debugdir); | |
111 | if (!err) { | |
112 | err = build_id_cache__add_s(sbuild_id, debugdir, filename, | |
113 | false, false); | |
114 | } | |
115 | if (verbose) | |
116 | pr_info("Updating %s %s: %s\n", sbuild_id, filename, | |
117 | err ? "FAIL" : "Ok"); | |
118 | ||
119 | return err; | |
120 | } | |
121 | ||
472cc83c ACM |
122 | int cmd_buildid_cache(int argc, const char **argv, |
123 | const char *prefix __maybe_unused) | |
ef12a141 ACM |
124 | { |
125 | struct strlist *list; | |
126 | struct str_node *pos; | |
fbb6976c ACM |
127 | int ret = 0; |
128 | bool force = false; | |
ef12a141 | 129 | char debugdir[PATH_MAX]; |
472cc83c | 130 | char const *add_name_list_str = NULL, |
fbb6976c | 131 | *remove_name_list_str = NULL, |
eeb49845 NK |
132 | *missing_filename = NULL, |
133 | *update_name_list_str = NULL; | |
134 | ||
472cc83c ACM |
135 | const struct option buildid_cache_options[] = { |
136 | OPT_STRING('a', "add", &add_name_list_str, | |
137 | "file list", "file(s) to add"), | |
138 | OPT_STRING('r', "remove", &remove_name_list_str, "file list", | |
139 | "file(s) to remove"), | |
fbb6976c ACM |
140 | OPT_STRING('M', "missing", &missing_filename, "file", |
141 | "to find missing build ids in the cache"), | |
142 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), | |
eeb49845 NK |
143 | OPT_STRING('u', "update", &update_name_list_str, "file list", |
144 | "file(s) to update"), | |
472cc83c ACM |
145 | OPT_INCR('v', "verbose", &verbose, "be more verbose"), |
146 | OPT_END() | |
147 | }; | |
148 | const char * const buildid_cache_usage[] = { | |
149 | "perf buildid-cache [<options>]", | |
150 | NULL | |
151 | }; | |
152 | ||
153 | argc = parse_options(argc, argv, buildid_cache_options, | |
154 | buildid_cache_usage, 0); | |
155 | ||
156 | if (symbol__init() < 0) | |
157 | return -1; | |
158 | ||
159 | setup_pager(); | |
ef12a141 | 160 | |
45de34bb | 161 | snprintf(debugdir, sizeof(debugdir), "%s", buildid_dir); |
ef12a141 ACM |
162 | |
163 | if (add_name_list_str) { | |
164 | list = strlist__new(true, add_name_list_str); | |
165 | if (list) { | |
166 | strlist__for_each(pos, list) | |
167 | if (build_id_cache__add_file(pos->s, debugdir)) { | |
168 | if (errno == EEXIST) { | |
169 | pr_debug("%s already in the cache\n", | |
170 | pos->s); | |
171 | continue; | |
172 | } | |
173 | pr_warning("Couldn't add %s: %s\n", | |
174 | pos->s, strerror(errno)); | |
175 | } | |
176 | ||
177 | strlist__delete(list); | |
178 | } | |
179 | } | |
180 | ||
181 | if (remove_name_list_str) { | |
182 | list = strlist__new(true, remove_name_list_str); | |
183 | if (list) { | |
184 | strlist__for_each(pos, list) | |
185 | if (build_id_cache__remove_file(pos->s, debugdir)) { | |
186 | if (errno == ENOENT) { | |
187 | pr_debug("%s wasn't in the cache\n", | |
188 | pos->s); | |
189 | continue; | |
190 | } | |
191 | pr_warning("Couldn't remove %s: %s\n", | |
192 | pos->s, strerror(errno)); | |
193 | } | |
194 | ||
195 | strlist__delete(list); | |
196 | } | |
197 | } | |
198 | ||
fbb6976c ACM |
199 | if (missing_filename) |
200 | ret = build_id_cache__fprintf_missing(missing_filename, force, stdout); | |
201 | ||
eeb49845 NK |
202 | if (update_name_list_str) { |
203 | list = strlist__new(true, update_name_list_str); | |
204 | if (list) { | |
205 | strlist__for_each(pos, list) | |
206 | if (build_id_cache__update_file(pos->s, debugdir)) { | |
207 | if (errno == ENOENT) { | |
208 | pr_debug("%s wasn't in the cache\n", | |
209 | pos->s); | |
210 | continue; | |
211 | } | |
212 | pr_warning("Couldn't update %s: %s\n", | |
213 | pos->s, strerror(errno)); | |
214 | } | |
215 | ||
216 | strlist__delete(list); | |
217 | } | |
218 | } | |
219 | ||
fbb6976c | 220 | return ret; |
ef12a141 | 221 | } |