1 #include "builtin.h" 2 #include "perf.h" 3 4 #include "util/parse-options.h" 5 #include "util/trace-event.h" 6 #include "util/tool.h" 7 #include "util/session.h" 8 9 #define MEM_OPERATION_LOAD "load" 10 #define MEM_OPERATION_STORE "store" 11 12 static const char *mem_operation = MEM_OPERATION_LOAD; 13 14 struct perf_mem { 15 struct perf_tool tool; 16 char const *input_name; 17 bool hide_unresolved; 18 bool dump_raw; 19 const char *cpu_list; 20 DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); 21 }; 22 23 static const char * const mem_usage[] = { 24 "perf mem [<options>] {record <command> |report}", 25 NULL 26 }; 27 28 static int __cmd_record(int argc, const char **argv) 29 { 30 int rec_argc, i = 0, j; 31 const char **rec_argv; 32 char event[64]; 33 int ret; 34 35 rec_argc = argc + 4; 36 rec_argv = calloc(rec_argc + 1, sizeof(char *)); 37 if (!rec_argv) 38 return -1; 39 40 rec_argv[i++] = strdup("record"); 41 if (!strcmp(mem_operation, MEM_OPERATION_LOAD)) 42 rec_argv[i++] = strdup("-W"); 43 rec_argv[i++] = strdup("-d"); 44 rec_argv[i++] = strdup("-e"); 45 46 if (strcmp(mem_operation, MEM_OPERATION_LOAD)) 47 sprintf(event, "cpu/mem-stores/pp"); 48 else 49 sprintf(event, "cpu/mem-loads/pp"); 50 51 rec_argv[i++] = strdup(event); 52 for (j = 1; j < argc; j++, i++) 53 rec_argv[i] = argv[j]; 54 55 ret = cmd_record(i, rec_argv, NULL); 56 free(rec_argv); 57 return ret; 58 } 59 60 static int 61 dump_raw_samples(struct perf_tool *tool, 62 union perf_event *event, 63 struct perf_sample *sample, 64 struct perf_evsel *evsel __maybe_unused, 65 struct machine *machine) 66 { 67 struct perf_mem *mem = container_of(tool, struct perf_mem, tool); 68 struct addr_location al; 69 const char *fmt; 70 71 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { 72 fprintf(stderr, "problem processing %d event, skipping it.\n", 73 event->header.type); 74 return -1; 75 } 76 77 if (al.filtered || (mem->hide_unresolved && al.sym == NULL)) 78 return 0; 79 80 if (al.map != NULL) 81 al.map->dso->hit = 1; 82 83 if (symbol_conf.field_sep) { 84 fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s%"PRIu64 85 "%s0x%"PRIx64"%s%s:%s\n"; 86 } else { 87 fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64 88 "%s%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n"; 89 symbol_conf.field_sep = " "; 90 } 91 92 printf(fmt, 93 sample->pid, 94 symbol_conf.field_sep, 95 sample->tid, 96 symbol_conf.field_sep, 97 sample->ip, 98 symbol_conf.field_sep, 99 sample->addr, 100 symbol_conf.field_sep, 101 sample->weight, 102 symbol_conf.field_sep, 103 sample->data_src, 104 symbol_conf.field_sep, 105 al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???", 106 al.sym ? al.sym->name : "???"); 107 108 return 0; 109 } 110 111 static int process_sample_event(struct perf_tool *tool, 112 union perf_event *event, 113 struct perf_sample *sample, 114 struct perf_evsel *evsel, 115 struct machine *machine) 116 { 117 return dump_raw_samples(tool, event, sample, evsel, machine); 118 } 119 120 static int report_raw_events(struct perf_mem *mem) 121 { 122 int err = -EINVAL; 123 int ret; 124 struct perf_session *session = perf_session__new(input_name, O_RDONLY, 125 0, false, &mem->tool); 126 127 if (session == NULL) 128 return -ENOMEM; 129 130 if (mem->cpu_list) { 131 ret = perf_session__cpu_bitmap(session, mem->cpu_list, 132 mem->cpu_bitmap); 133 if (ret) 134 goto out_delete; 135 } 136 137 if (symbol__init() < 0) 138 return -1; 139 140 printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n"); 141 142 err = perf_session__process_events(session, &mem->tool); 143 if (err) 144 return err; 145 146 return 0; 147 148 out_delete: 149 perf_session__delete(session); 150 return err; 151 } 152 153 static int report_events(int argc, const char **argv, struct perf_mem *mem) 154 { 155 const char **rep_argv; 156 int ret, i = 0, j, rep_argc; 157 158 if (mem->dump_raw) 159 return report_raw_events(mem); 160 161 rep_argc = argc + 3; 162 rep_argv = calloc(rep_argc + 1, sizeof(char *)); 163 if (!rep_argv) 164 return -1; 165 166 rep_argv[i++] = strdup("report"); 167 rep_argv[i++] = strdup("--mem-mode"); 168 rep_argv[i++] = strdup("-n"); /* display number of samples */ 169 170 /* 171 * there is no weight (cost) associated with stores, so don't print 172 * the column 173 */ 174 if (strcmp(mem_operation, MEM_OPERATION_LOAD)) 175 rep_argv[i++] = strdup("--sort=mem,sym,dso,symbol_daddr," 176 "dso_daddr,tlb,locked"); 177 178 for (j = 1; j < argc; j++, i++) 179 rep_argv[i] = argv[j]; 180 181 ret = cmd_report(i, rep_argv, NULL); 182 free(rep_argv); 183 return ret; 184 } 185 186 int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused) 187 { 188 struct stat st; 189 struct perf_mem mem = { 190 .tool = { 191 .sample = process_sample_event, 192 .mmap = perf_event__process_mmap, 193 .mmap2 = perf_event__process_mmap2, 194 .comm = perf_event__process_comm, 195 .lost = perf_event__process_lost, 196 .fork = perf_event__process_fork, 197 .build_id = perf_event__process_build_id, 198 .ordered_samples = true, 199 }, 200 .input_name = "perf.data", 201 }; 202 const struct option mem_options[] = { 203 OPT_STRING('t', "type", &mem_operation, 204 "type", "memory operations(load/store)"), 205 OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw, 206 "dump raw samples in ASCII"), 207 OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved, 208 "Only display entries resolved to a symbol"), 209 OPT_STRING('i', "input", &input_name, "file", 210 "input file name"), 211 OPT_STRING('C', "cpu", &mem.cpu_list, "cpu", 212 "list of cpus to profile"), 213 OPT_STRING('x', "field-separator", &symbol_conf.field_sep, 214 "separator", 215 "separator for columns, no spaces will be added" 216 " between columns '.' is reserved."), 217 OPT_END() 218 }; 219 220 argc = parse_options(argc, argv, mem_options, mem_usage, 221 PARSE_OPT_STOP_AT_NON_OPTION); 222 223 if (!argc || !(strncmp(argv[0], "rec", 3) || mem_operation)) 224 usage_with_options(mem_usage, mem_options); 225 226 if (!mem.input_name || !strlen(mem.input_name)) { 227 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) 228 mem.input_name = "-"; 229 else 230 mem.input_name = "perf.data"; 231 } 232 233 if (!strncmp(argv[0], "rec", 3)) 234 return __cmd_record(argc, argv); 235 else if (!strncmp(argv[0], "rep", 3)) 236 return report_events(argc, argv, &mem); 237 else 238 usage_with_options(mem_usage, mem_options); 239 240 return 0; 241 } 242