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"
16 #include "util/symbol.h"
17
18 static char const *add_name_list_str, *remove_name_list_str;
19
20 static const char * const buildid_cache_usage[] = {
21 "perf buildid-cache [<options>]",
22 NULL
23 };
24
25 static const struct option buildid_cache_options[] = {
26 OPT_STRING('a', "add", &add_name_list_str,
27 "file list", "file(s) to add"),
28 OPT_STRING('r', "remove", &remove_name_list_str, "file list",
29 "file(s) to remove"),
30 OPT_INCR('v', "verbose", &verbose, "be more verbose"),
31 OPT_END()
32 };
33
build_id_cache__add_file(const char * filename,const char * debugdir)34 static int build_id_cache__add_file(const char *filename, const char *debugdir)
35 {
36 char sbuild_id[BUILD_ID_SIZE * 2 + 1];
37 u8 build_id[BUILD_ID_SIZE];
38 int err;
39
40 if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
41 pr_debug("Couldn't read a build-id in %s\n", filename);
42 return -1;
43 }
44
45 build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
46 err = build_id_cache__add_s(sbuild_id, debugdir, filename, false);
47 if (verbose)
48 pr_info("Adding %s %s: %s\n", sbuild_id, filename,
49 err ? "FAIL" : "Ok");
50 return err;
51 }
52
build_id_cache__remove_file(const char * filename __used,const char * debugdir __used)53 static int build_id_cache__remove_file(const char *filename __used,
54 const char *debugdir __used)
55 {
56 u8 build_id[BUILD_ID_SIZE];
57 char sbuild_id[BUILD_ID_SIZE * 2 + 1];
58
59 int err;
60
61 if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
62 pr_debug("Couldn't read a build-id in %s\n", filename);
63 return -1;
64 }
65
66 build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
67 err = build_id_cache__remove_s(sbuild_id, debugdir);
68 if (verbose)
69 pr_info("Removing %s %s: %s\n", sbuild_id, filename,
70 err ? "FAIL" : "Ok");
71
72 return err;
73 }
74
__cmd_buildid_cache(void)75 static int __cmd_buildid_cache(void)
76 {
77 struct strlist *list;
78 struct str_node *pos;
79 char debugdir[PATH_MAX];
80
81 snprintf(debugdir, sizeof(debugdir), "%s", buildid_dir);
82
83 if (add_name_list_str) {
84 list = strlist__new(true, add_name_list_str);
85 if (list) {
86 strlist__for_each(pos, list)
87 if (build_id_cache__add_file(pos->s, debugdir)) {
88 if (errno == EEXIST) {
89 pr_debug("%s already in the cache\n",
90 pos->s);
91 continue;
92 }
93 pr_warning("Couldn't add %s: %s\n",
94 pos->s, strerror(errno));
95 }
96
97 strlist__delete(list);
98 }
99 }
100
101 if (remove_name_list_str) {
102 list = strlist__new(true, remove_name_list_str);
103 if (list) {
104 strlist__for_each(pos, list)
105 if (build_id_cache__remove_file(pos->s, debugdir)) {
106 if (errno == ENOENT) {
107 pr_debug("%s wasn't in the cache\n",
108 pos->s);
109 continue;
110 }
111 pr_warning("Couldn't remove %s: %s\n",
112 pos->s, strerror(errno));
113 }
114
115 strlist__delete(list);
116 }
117 }
118
119 return 0;
120 }
121
cmd_buildid_cache(int argc,const char ** argv,const char * prefix __used)122 int cmd_buildid_cache(int argc, const char **argv, const char *prefix __used)
123 {
124 argc = parse_options(argc, argv, buildid_cache_options,
125 buildid_cache_usage, 0);
126
127 if (symbol__init() < 0)
128 return -1;
129
130 setup_pager();
131 return __cmd_buildid_cache();
132 }
133