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 (at) 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 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 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 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 } 121 122 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
