Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 1 | #include <linux/types.h> |
| 2 | #include "event.h" |
| 3 | #include "debug.h" |
Arnaldo Carvalho de Melo | ec91336 | 2009-12-13 19:50:27 -0200 | [diff] [blame] | 4 | #include "session.h" |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 5 | #include "sort.h" |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 6 | #include "string.h" |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 7 | #include "strlist.h" |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 8 | #include "thread.h" |
Arnaldo Carvalho de Melo | 7c940c1 | 2011-02-11 11:45:54 -0200 | [diff] [blame] | 9 | #include "thread_map.h" |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 10 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 11 | static const char *perf_event__names[] = { |
Frederic Weisbecker | 3cb6d15 | 2011-05-23 13:06:27 +0200 | [diff] [blame] | 12 | [0] = "TOTAL", |
| 13 | [PERF_RECORD_MMAP] = "MMAP", |
| 14 | [PERF_RECORD_LOST] = "LOST", |
| 15 | [PERF_RECORD_COMM] = "COMM", |
| 16 | [PERF_RECORD_EXIT] = "EXIT", |
| 17 | [PERF_RECORD_THROTTLE] = "THROTTLE", |
| 18 | [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE", |
| 19 | [PERF_RECORD_FORK] = "FORK", |
| 20 | [PERF_RECORD_READ] = "READ", |
| 21 | [PERF_RECORD_SAMPLE] = "SAMPLE", |
| 22 | [PERF_RECORD_HEADER_ATTR] = "ATTR", |
| 23 | [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE", |
| 24 | [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA", |
| 25 | [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID", |
| 26 | [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND", |
Arnaldo Carvalho de Melo | c8446b9 | 2010-05-14 10:36:42 -0300 | [diff] [blame] | 27 | }; |
| 28 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 29 | const char *perf_event__name(unsigned int id) |
Thomas Gleixner | 3835bc0 | 2010-12-07 12:48:42 +0000 | [diff] [blame] | 30 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 31 | if (id >= ARRAY_SIZE(perf_event__names)) |
Thomas Gleixner | 3835bc0 | 2010-12-07 12:48:42 +0000 | [diff] [blame] | 32 | return "INVALID"; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 33 | if (!perf_event__names[id]) |
Thomas Gleixner | 3835bc0 | 2010-12-07 12:48:42 +0000 | [diff] [blame] | 34 | return "UNKNOWN"; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 35 | return perf_event__names[id]; |
Thomas Gleixner | 3835bc0 | 2010-12-07 12:48:42 +0000 | [diff] [blame] | 36 | } |
| 37 | |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 38 | static struct perf_sample synth_sample = { |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 39 | .pid = -1, |
| 40 | .tid = -1, |
| 41 | .time = -1, |
| 42 | .stream_id = -1, |
| 43 | .cpu = -1, |
| 44 | .period = 1, |
| 45 | }; |
| 46 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 47 | static pid_t perf_event__synthesize_comm(union perf_event *event, pid_t pid, |
| 48 | int full, perf_event__handler_t process, |
| 49 | struct perf_session *session) |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 50 | { |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 51 | char filename[PATH_MAX]; |
| 52 | char bf[BUFSIZ]; |
| 53 | FILE *fp; |
| 54 | size_t size = 0; |
| 55 | DIR *tasks; |
| 56 | struct dirent dirent, *next; |
| 57 | pid_t tgid = 0; |
| 58 | |
| 59 | snprintf(filename, sizeof(filename), "/proc/%d/status", pid); |
| 60 | |
| 61 | fp = fopen(filename, "r"); |
| 62 | if (fp == NULL) { |
| 63 | out_race: |
| 64 | /* |
| 65 | * We raced with a task exiting - just return: |
| 66 | */ |
| 67 | pr_debug("couldn't open %s\n", filename); |
| 68 | return 0; |
| 69 | } |
| 70 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 71 | memset(&event->comm, 0, sizeof(event->comm)); |
| 72 | |
| 73 | while (!event->comm.comm[0] || !event->comm.pid) { |
| 74 | if (fgets(bf, sizeof(bf), fp) == NULL) { |
| 75 | pr_warning("couldn't get COMM and pgid, malformed %s\n", filename); |
| 76 | goto out; |
| 77 | } |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 78 | |
| 79 | if (memcmp(bf, "Name:", 5) == 0) { |
| 80 | char *name = bf + 5; |
| 81 | while (*name && isspace(*name)) |
| 82 | ++name; |
| 83 | size = strlen(name) - 1; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 84 | memcpy(event->comm.comm, name, size++); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 85 | } else if (memcmp(bf, "Tgid:", 5) == 0) { |
| 86 | char *tgids = bf + 5; |
| 87 | while (*tgids && isspace(*tgids)) |
| 88 | ++tgids; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 89 | tgid = event->comm.pid = atoi(tgids); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 90 | } |
| 91 | } |
| 92 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 93 | event->comm.header.type = PERF_RECORD_COMM; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 94 | size = ALIGN(size, sizeof(u64)); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 95 | memset(event->comm.comm + size, 0, session->id_hdr_size); |
| 96 | event->comm.header.size = (sizeof(event->comm) - |
| 97 | (sizeof(event->comm.comm) - size) + |
| 98 | session->id_hdr_size); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 99 | if (!full) { |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 100 | event->comm.tid = pid; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 101 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 102 | process(event, &synth_sample, session); |
| 103 | goto out; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 104 | } |
| 105 | |
| 106 | snprintf(filename, sizeof(filename), "/proc/%d/task", pid); |
| 107 | |
| 108 | tasks = opendir(filename); |
| 109 | if (tasks == NULL) |
| 110 | goto out_race; |
| 111 | |
| 112 | while (!readdir_r(tasks, &dirent, &next) && next) { |
| 113 | char *end; |
| 114 | pid = strtol(dirent.d_name, &end, 10); |
| 115 | if (*end) |
| 116 | continue; |
| 117 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 118 | event->comm.tid = pid; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 119 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 120 | process(event, &synth_sample, session); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 121 | } |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 122 | |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 123 | closedir(tasks); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 124 | out: |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 125 | fclose(fp); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 126 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 127 | return tgid; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 128 | } |
| 129 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 130 | static int perf_event__synthesize_mmap_events(union perf_event *event, |
| 131 | pid_t pid, pid_t tgid, |
| 132 | perf_event__handler_t process, |
| 133 | struct perf_session *session) |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 134 | { |
| 135 | char filename[PATH_MAX]; |
| 136 | FILE *fp; |
| 137 | |
| 138 | snprintf(filename, sizeof(filename), "/proc/%d/maps", pid); |
| 139 | |
| 140 | fp = fopen(filename, "r"); |
| 141 | if (fp == NULL) { |
| 142 | /* |
| 143 | * We raced with a task exiting - just return: |
| 144 | */ |
| 145 | pr_debug("couldn't open %s\n", filename); |
| 146 | return -1; |
| 147 | } |
| 148 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 149 | event->header.type = PERF_RECORD_MMAP; |
| 150 | /* |
| 151 | * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c |
| 152 | */ |
| 153 | event->header.misc = PERF_RECORD_MISC_USER; |
| 154 | |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 155 | while (1) { |
| 156 | char bf[BUFSIZ], *pbf = bf; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 157 | int n; |
| 158 | size_t size; |
| 159 | if (fgets(bf, sizeof(bf), fp) == NULL) |
| 160 | break; |
| 161 | |
| 162 | /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */ |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 163 | n = hex2u64(pbf, &event->mmap.start); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 164 | if (n < 0) |
| 165 | continue; |
| 166 | pbf += n + 1; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 167 | n = hex2u64(pbf, &event->mmap.len); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 168 | if (n < 0) |
| 169 | continue; |
| 170 | pbf += n + 3; |
| 171 | if (*pbf == 'x') { /* vm_exec */ |
Anton Blanchard | 6a0e55d | 2011-08-30 09:15:06 +1000 | [diff] [blame] | 172 | char anonstr[] = "//anon\n"; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 173 | char *execname = strchr(bf, '/'); |
| 174 | |
| 175 | /* Catch VDSO */ |
| 176 | if (execname == NULL) |
| 177 | execname = strstr(bf, "[vdso]"); |
| 178 | |
Anton Blanchard | 6a0e55d | 2011-08-30 09:15:06 +1000 | [diff] [blame] | 179 | /* Catch anonymous mmaps */ |
| 180 | if ((execname == NULL) && !strstr(bf, "[")) |
| 181 | execname = anonstr; |
| 182 | |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 183 | if (execname == NULL) |
| 184 | continue; |
| 185 | |
Anton Blanchard | 4af8b35 | 2010-04-03 22:53:31 +1100 | [diff] [blame] | 186 | pbf += 3; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 187 | n = hex2u64(pbf, &event->mmap.pgoff); |
Anton Blanchard | 4af8b35 | 2010-04-03 22:53:31 +1100 | [diff] [blame] | 188 | |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 189 | size = strlen(execname); |
| 190 | execname[size - 1] = '\0'; /* Remove \n */ |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 191 | memcpy(event->mmap.filename, execname, size); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 192 | size = ALIGN(size, sizeof(u64)); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 193 | event->mmap.len -= event->mmap.start; |
| 194 | event->mmap.header.size = (sizeof(event->mmap) - |
| 195 | (sizeof(event->mmap.filename) - size)); |
| 196 | memset(event->mmap.filename + size, 0, session->id_hdr_size); |
| 197 | event->mmap.header.size += session->id_hdr_size; |
| 198 | event->mmap.pid = tgid; |
| 199 | event->mmap.tid = pid; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 200 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 201 | process(event, &synth_sample, session); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 202 | } |
| 203 | } |
| 204 | |
| 205 | fclose(fp); |
| 206 | return 0; |
| 207 | } |
| 208 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 209 | int perf_event__synthesize_modules(perf_event__handler_t process, |
| 210 | struct perf_session *session, |
| 211 | struct machine *machine) |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 212 | { |
| 213 | struct rb_node *nd; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 214 | struct map_groups *kmaps = &machine->kmaps; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 215 | union perf_event *event = zalloc((sizeof(event->mmap) + |
| 216 | session->id_hdr_size)); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 217 | if (event == NULL) { |
| 218 | pr_debug("Not enough memory synthesizing mmap event " |
| 219 | "for kernel modules\n"); |
| 220 | return -1; |
| 221 | } |
| 222 | |
| 223 | event->header.type = PERF_RECORD_MMAP; |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 224 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 225 | /* |
| 226 | * kernel uses 0 for user space maps, see kernel/perf_event.c |
| 227 | * __perf_event_mmap |
| 228 | */ |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 229 | if (machine__is_host(machine)) |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 230 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 231 | else |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 232 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 233 | |
| 234 | for (nd = rb_first(&kmaps->maps[MAP__FUNCTION]); |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 235 | nd; nd = rb_next(nd)) { |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 236 | size_t size; |
| 237 | struct map *pos = rb_entry(nd, struct map, rb_node); |
| 238 | |
| 239 | if (pos->dso->kernel) |
| 240 | continue; |
| 241 | |
| 242 | size = ALIGN(pos->dso->long_name_len + 1, sizeof(u64)); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 243 | event->mmap.header.type = PERF_RECORD_MMAP; |
| 244 | event->mmap.header.size = (sizeof(event->mmap) - |
| 245 | (sizeof(event->mmap.filename) - size)); |
| 246 | memset(event->mmap.filename + size, 0, session->id_hdr_size); |
| 247 | event->mmap.header.size += session->id_hdr_size; |
| 248 | event->mmap.start = pos->start; |
| 249 | event->mmap.len = pos->end - pos->start; |
| 250 | event->mmap.pid = machine->pid; |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 251 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 252 | memcpy(event->mmap.filename, pos->dso->long_name, |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 253 | pos->dso->long_name_len + 1); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 254 | process(event, &synth_sample, session); |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 255 | } |
| 256 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 257 | free(event); |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 258 | return 0; |
| 259 | } |
| 260 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 261 | static int __event__synthesize_thread(union perf_event *comm_event, |
| 262 | union perf_event *mmap_event, |
| 263 | pid_t pid, perf_event__handler_t process, |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 264 | struct perf_session *session) |
| 265 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 266 | pid_t tgid = perf_event__synthesize_comm(comm_event, pid, 1, process, |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 267 | session); |
| 268 | if (tgid == -1) |
| 269 | return -1; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 270 | return perf_event__synthesize_mmap_events(mmap_event, pid, tgid, |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 271 | process, session); |
| 272 | } |
| 273 | |
Arnaldo Carvalho de Melo | 7c940c1 | 2011-02-11 11:45:54 -0200 | [diff] [blame] | 274 | int perf_event__synthesize_thread_map(struct thread_map *threads, |
| 275 | perf_event__handler_t process, |
| 276 | struct perf_session *session) |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 277 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 278 | union perf_event *comm_event, *mmap_event; |
Arnaldo Carvalho de Melo | 401b8e1 | 2011-02-10 12:52:47 -0200 | [diff] [blame] | 279 | int err = -1, thread; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 280 | |
| 281 | comm_event = malloc(sizeof(comm_event->comm) + session->id_hdr_size); |
| 282 | if (comm_event == NULL) |
| 283 | goto out; |
| 284 | |
| 285 | mmap_event = malloc(sizeof(mmap_event->mmap) + session->id_hdr_size); |
| 286 | if (mmap_event == NULL) |
| 287 | goto out_free_comm; |
| 288 | |
Arnaldo Carvalho de Melo | 401b8e1 | 2011-02-10 12:52:47 -0200 | [diff] [blame] | 289 | err = 0; |
| 290 | for (thread = 0; thread < threads->nr; ++thread) { |
| 291 | if (__event__synthesize_thread(comm_event, mmap_event, |
| 292 | threads->map[thread], |
| 293 | process, session)) { |
| 294 | err = -1; |
| 295 | break; |
| 296 | } |
| 297 | } |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 298 | free(mmap_event); |
| 299 | out_free_comm: |
| 300 | free(comm_event); |
| 301 | out: |
| 302 | return err; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 303 | } |
| 304 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 305 | int perf_event__synthesize_threads(perf_event__handler_t process, |
| 306 | struct perf_session *session) |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 307 | { |
| 308 | DIR *proc; |
| 309 | struct dirent dirent, *next; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 310 | union perf_event *comm_event, *mmap_event; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 311 | int err = -1; |
| 312 | |
| 313 | comm_event = malloc(sizeof(comm_event->comm) + session->id_hdr_size); |
| 314 | if (comm_event == NULL) |
| 315 | goto out; |
| 316 | |
| 317 | mmap_event = malloc(sizeof(mmap_event->mmap) + session->id_hdr_size); |
| 318 | if (mmap_event == NULL) |
| 319 | goto out_free_comm; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 320 | |
| 321 | proc = opendir("/proc"); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 322 | if (proc == NULL) |
| 323 | goto out_free_mmap; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 324 | |
| 325 | while (!readdir_r(proc, &dirent, &next) && next) { |
| 326 | char *end; |
| 327 | pid_t pid = strtol(dirent.d_name, &end, 10); |
| 328 | |
| 329 | if (*end) /* only interested in proper numerical dirents */ |
| 330 | continue; |
| 331 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 332 | __event__synthesize_thread(comm_event, mmap_event, pid, |
| 333 | process, session); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 334 | } |
| 335 | |
| 336 | closedir(proc); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 337 | err = 0; |
| 338 | out_free_mmap: |
| 339 | free(mmap_event); |
| 340 | out_free_comm: |
| 341 | free(comm_event); |
| 342 | out: |
| 343 | return err; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 344 | } |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 345 | |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 346 | struct process_symbol_args { |
| 347 | const char *name; |
| 348 | u64 start; |
| 349 | }; |
| 350 | |
Arnaldo Carvalho de Melo | 3b01a41 | 2010-12-22 01:08:36 -0200 | [diff] [blame] | 351 | static int find_symbol_cb(void *arg, const char *name, char type, |
| 352 | u64 start, u64 end __used) |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 353 | { |
| 354 | struct process_symbol_args *args = arg; |
| 355 | |
Arnaldo Carvalho de Melo | 881516e | 2010-01-15 18:08:27 -0200 | [diff] [blame] | 356 | /* |
| 357 | * Must be a function or at least an alias, as in PARISC64, where "_text" is |
| 358 | * an 'A' to the same address as "_stext". |
| 359 | */ |
| 360 | if (!(symbol_type__is_a(type, MAP__FUNCTION) || |
| 361 | type == 'A') || strcmp(name, args->name)) |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 362 | return 0; |
| 363 | |
| 364 | args->start = start; |
| 365 | return 1; |
| 366 | } |
| 367 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 368 | int perf_event__synthesize_kernel_mmap(perf_event__handler_t process, |
| 369 | struct perf_session *session, |
| 370 | struct machine *machine, |
| 371 | const char *symbol_name) |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 372 | { |
| 373 | size_t size; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 374 | const char *filename, *mmap_name; |
| 375 | char path[PATH_MAX]; |
| 376 | char name_buff[PATH_MAX]; |
| 377 | struct map *map; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 378 | int err; |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 379 | /* |
| 380 | * We should get this from /sys/kernel/sections/.text, but till that is |
| 381 | * available use this, and after it is use this as a fallback for older |
| 382 | * kernels. |
| 383 | */ |
| 384 | struct process_symbol_args args = { .name = symbol_name, }; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 385 | union perf_event *event = zalloc((sizeof(event->mmap) + |
| 386 | session->id_hdr_size)); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 387 | if (event == NULL) { |
| 388 | pr_debug("Not enough memory synthesizing mmap event " |
| 389 | "for kernel modules\n"); |
| 390 | return -1; |
| 391 | } |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 392 | |
Arnaldo Carvalho de Melo | 48ea8f5 | 2010-04-27 21:19:05 -0300 | [diff] [blame] | 393 | mmap_name = machine__mmap_name(machine, name_buff, sizeof(name_buff)); |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 394 | if (machine__is_host(machine)) { |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 395 | /* |
| 396 | * kernel uses PERF_RECORD_MISC_USER for user space maps, |
| 397 | * see kernel/perf_event.c __perf_event_mmap |
| 398 | */ |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 399 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 400 | filename = "/proc/kallsyms"; |
| 401 | } else { |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 402 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 403 | if (machine__is_default_guest(machine)) |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 404 | filename = (char *) symbol_conf.default_guest_kallsyms; |
| 405 | else { |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 406 | sprintf(path, "%s/proc/kallsyms", machine->root_dir); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 407 | filename = path; |
| 408 | } |
| 409 | } |
| 410 | |
| 411 | if (kallsyms__parse(filename, &args, find_symbol_cb) <= 0) |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 412 | return -ENOENT; |
| 413 | |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 414 | map = machine->vmlinux_maps[MAP__FUNCTION]; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 415 | size = snprintf(event->mmap.filename, sizeof(event->mmap.filename), |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 416 | "%s%s", mmap_name, symbol_name) + 1; |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 417 | size = ALIGN(size, sizeof(u64)); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 418 | event->mmap.header.type = PERF_RECORD_MMAP; |
| 419 | event->mmap.header.size = (sizeof(event->mmap) - |
| 420 | (sizeof(event->mmap.filename) - size) + session->id_hdr_size); |
| 421 | event->mmap.pgoff = args.start; |
| 422 | event->mmap.start = map->start; |
| 423 | event->mmap.len = map->end - event->mmap.start; |
| 424 | event->mmap.pid = machine->pid; |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 425 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 426 | err = process(event, &synth_sample, session); |
| 427 | free(event); |
| 428 | |
| 429 | return err; |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 430 | } |
| 431 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 432 | int perf_event__process_comm(union perf_event *event, |
| 433 | struct perf_sample *sample __used, |
| 434 | struct perf_session *session) |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 435 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 436 | struct thread *thread = perf_session__findnew(session, event->comm.tid); |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 437 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 438 | dump_printf(": %s:%d\n", event->comm.comm, event->comm.tid); |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 439 | |
Arnaldo Carvalho de Melo | d7603d5 | 2011-03-04 14:51:33 -0300 | [diff] [blame] | 440 | if (thread == NULL || thread__set_comm(thread, event->comm.comm)) { |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 441 | dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n"); |
| 442 | return -1; |
| 443 | } |
| 444 | |
| 445 | return 0; |
| 446 | } |
| 447 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 448 | int perf_event__process_lost(union perf_event *event, |
| 449 | struct perf_sample *sample __used, |
| 450 | struct perf_session *session) |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 451 | { |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 452 | dump_printf(": id:%" PRIu64 ": lost:%" PRIu64 "\n", |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 453 | event->lost.id, event->lost.lost); |
| 454 | session->hists.stats.total_lost += event->lost.lost; |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 455 | return 0; |
| 456 | } |
| 457 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 458 | static void perf_event__set_kernel_mmap_len(union perf_event *event, |
| 459 | struct map **maps) |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 460 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 461 | maps[MAP__FUNCTION]->start = event->mmap.start; |
| 462 | maps[MAP__FUNCTION]->end = event->mmap.start + event->mmap.len; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 463 | /* |
| 464 | * Be a bit paranoid here, some perf.data file came with |
| 465 | * a zero sized synthesized MMAP event for the kernel. |
| 466 | */ |
| 467 | if (maps[MAP__FUNCTION]->end == 0) |
Ian Munsie | 9d1faba | 2010-11-25 15:12:53 +1100 | [diff] [blame] | 468 | maps[MAP__FUNCTION]->end = ~0ULL; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 469 | } |
| 470 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 471 | static int perf_event__process_kernel_mmap(union perf_event *event, |
| 472 | struct perf_session *session) |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 473 | { |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 474 | struct map *map; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 475 | char kmmap_prefix[PATH_MAX]; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 476 | struct machine *machine; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 477 | enum dso_kernel_type kernel_type; |
| 478 | bool is_kernel_mmap; |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 479 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 480 | machine = perf_session__findnew_machine(session, event->mmap.pid); |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 481 | if (!machine) { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 482 | pr_err("Can't find id %d's machine\n", event->mmap.pid); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 483 | goto out_problem; |
| 484 | } |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 485 | |
Arnaldo Carvalho de Melo | 48ea8f5 | 2010-04-27 21:19:05 -0300 | [diff] [blame] | 486 | machine__mmap_name(machine, kmmap_prefix, sizeof(kmmap_prefix)); |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 487 | if (machine__is_host(machine)) |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 488 | kernel_type = DSO_TYPE_KERNEL; |
| 489 | else |
| 490 | kernel_type = DSO_TYPE_GUEST_KERNEL; |
| 491 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 492 | is_kernel_mmap = memcmp(event->mmap.filename, |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 493 | kmmap_prefix, |
| 494 | strlen(kmmap_prefix)) == 0; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 495 | if (event->mmap.filename[0] == '/' || |
| 496 | (!is_kernel_mmap && event->mmap.filename[0] == '[')) { |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 497 | |
| 498 | char short_module_name[1024]; |
| 499 | char *name, *dot; |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 500 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 501 | if (event->mmap.filename[0] == '/') { |
| 502 | name = strrchr(event->mmap.filename, '/'); |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 503 | if (name == NULL) |
| 504 | goto out_problem; |
| 505 | |
| 506 | ++name; /* skip / */ |
| 507 | dot = strrchr(name, '.'); |
| 508 | if (dot == NULL) |
| 509 | goto out_problem; |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 510 | snprintf(short_module_name, sizeof(short_module_name), |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 511 | "[%.*s]", (int)(dot - name), name); |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 512 | strxfrchar(short_module_name, '-', '_'); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 513 | } else |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 514 | strcpy(short_module_name, event->mmap.filename); |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 515 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 516 | map = machine__new_module(machine, event->mmap.start, |
| 517 | event->mmap.filename); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 518 | if (map == NULL) |
| 519 | goto out_problem; |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 520 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 521 | name = strdup(short_module_name); |
| 522 | if (name == NULL) |
| 523 | goto out_problem; |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 524 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 525 | map->dso->short_name = name; |
Arnaldo Carvalho de Melo | 6e40625 | 2010-07-29 15:11:30 -0300 | [diff] [blame] | 526 | map->dso->sname_alloc = 1; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 527 | map->end = map->start + event->mmap.len; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 528 | } else if (is_kernel_mmap) { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 529 | const char *symbol_name = (event->mmap.filename + |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 530 | strlen(kmmap_prefix)); |
| 531 | /* |
| 532 | * Should be there already, from the build-id table in |
| 533 | * the header. |
| 534 | */ |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 535 | struct dso *kernel = __dsos__findnew(&machine->kernel_dsos, |
| 536 | kmmap_prefix); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 537 | if (kernel == NULL) |
| 538 | goto out_problem; |
| 539 | |
| 540 | kernel->kernel = kernel_type; |
Arnaldo Carvalho de Melo | d28c622 | 2010-04-27 21:20:43 -0300 | [diff] [blame] | 541 | if (__machine__create_kernel_maps(machine, kernel) < 0) |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 542 | goto out_problem; |
| 543 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 544 | perf_event__set_kernel_mmap_len(event, machine->vmlinux_maps); |
Arnaldo Carvalho de Melo | ec80fde | 2011-05-26 09:53:51 -0300 | [diff] [blame] | 545 | |
| 546 | /* |
| 547 | * Avoid using a zero address (kptr_restrict) for the ref reloc |
| 548 | * symbol. Effectively having zero here means that at record |
| 549 | * time /proc/sys/kernel/kptr_restrict was non zero. |
| 550 | */ |
| 551 | if (event->mmap.pgoff != 0) { |
| 552 | perf_session__set_kallsyms_ref_reloc_sym(machine->vmlinux_maps, |
| 553 | symbol_name, |
| 554 | event->mmap.pgoff); |
| 555 | } |
| 556 | |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 557 | if (machine__is_default_guest(machine)) { |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 558 | /* |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 559 | * preload dso of guest kernel and modules |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 560 | */ |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 561 | dso__load(kernel, machine->vmlinux_maps[MAP__FUNCTION], |
| 562 | NULL); |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 563 | } |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 564 | } |
| 565 | return 0; |
| 566 | out_problem: |
| 567 | return -1; |
| 568 | } |
| 569 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 570 | int perf_event__process_mmap(union perf_event *event, |
| 571 | struct perf_sample *sample __used, |
| 572 | struct perf_session *session) |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 573 | { |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 574 | struct machine *machine; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 575 | struct thread *thread; |
| 576 | struct map *map; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 577 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 578 | int ret = 0; |
| 579 | |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 580 | dump_printf(" %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %s\n", |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 581 | event->mmap.pid, event->mmap.tid, event->mmap.start, |
| 582 | event->mmap.len, event->mmap.pgoff, event->mmap.filename); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 583 | |
| 584 | if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL || |
| 585 | cpumode == PERF_RECORD_MISC_KERNEL) { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 586 | ret = perf_event__process_kernel_mmap(event, session); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 587 | if (ret < 0) |
| 588 | goto out_problem; |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 589 | return 0; |
| 590 | } |
| 591 | |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 592 | machine = perf_session__find_host_machine(session); |
Arnaldo Carvalho de Melo | 4cc4945 | 2010-05-09 21:14:07 -0300 | [diff] [blame] | 593 | if (machine == NULL) |
| 594 | goto out_problem; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 595 | thread = perf_session__findnew(session, event->mmap.pid); |
Arnaldo Carvalho de Melo | d65a458 | 2010-07-30 18:31:28 -0300 | [diff] [blame] | 596 | if (thread == NULL) |
| 597 | goto out_problem; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 598 | map = map__new(&machine->user_dsos, event->mmap.start, |
| 599 | event->mmap.len, event->mmap.pgoff, |
| 600 | event->mmap.pid, event->mmap.filename, |
Dave Martin | 361d134 | 2010-07-27 16:40:02 +0100 | [diff] [blame] | 601 | MAP__FUNCTION); |
Arnaldo Carvalho de Melo | d65a458 | 2010-07-30 18:31:28 -0300 | [diff] [blame] | 602 | if (map == NULL) |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 603 | goto out_problem; |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 604 | |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 605 | thread__insert_map(thread, map); |
| 606 | return 0; |
| 607 | |
| 608 | out_problem: |
| 609 | dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n"); |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 610 | return 0; |
| 611 | } |
| 612 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 613 | int perf_event__process_task(union perf_event *event, |
| 614 | struct perf_sample *sample __used, |
| 615 | struct perf_session *session) |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 616 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 617 | struct thread *thread = perf_session__findnew(session, event->fork.tid); |
| 618 | struct thread *parent = perf_session__findnew(session, event->fork.ptid); |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 619 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 620 | dump_printf("(%d:%d):(%d:%d)\n", event->fork.pid, event->fork.tid, |
| 621 | event->fork.ppid, event->fork.ptid); |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 622 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 623 | if (event->header.type == PERF_RECORD_EXIT) { |
Arnaldo Carvalho de Melo | 720a3ae | 2010-06-17 08:37:44 -0300 | [diff] [blame] | 624 | perf_session__remove_thread(session, thread); |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 625 | return 0; |
Arnaldo Carvalho de Melo | 720a3ae | 2010-06-17 08:37:44 -0300 | [diff] [blame] | 626 | } |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 627 | |
| 628 | if (thread == NULL || parent == NULL || |
| 629 | thread__fork(thread, parent) < 0) { |
| 630 | dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n"); |
| 631 | return -1; |
| 632 | } |
| 633 | |
| 634 | return 0; |
| 635 | } |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 636 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 637 | int perf_event__process(union perf_event *event, struct perf_sample *sample, |
| 638 | struct perf_session *session) |
Srikar Dronamraju | b83f920 | 2010-08-02 18:08:51 +0530 | [diff] [blame] | 639 | { |
| 640 | switch (event->header.type) { |
| 641 | case PERF_RECORD_COMM: |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 642 | perf_event__process_comm(event, sample, session); |
Srikar Dronamraju | b83f920 | 2010-08-02 18:08:51 +0530 | [diff] [blame] | 643 | break; |
| 644 | case PERF_RECORD_MMAP: |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 645 | perf_event__process_mmap(event, sample, session); |
Srikar Dronamraju | b83f920 | 2010-08-02 18:08:51 +0530 | [diff] [blame] | 646 | break; |
| 647 | case PERF_RECORD_FORK: |
| 648 | case PERF_RECORD_EXIT: |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 649 | perf_event__process_task(event, sample, session); |
Srikar Dronamraju | b83f920 | 2010-08-02 18:08:51 +0530 | [diff] [blame] | 650 | break; |
Arnaldo Carvalho de Melo | ef2bf6d | 2011-01-29 09:04:40 -0200 | [diff] [blame] | 651 | case PERF_RECORD_LOST: |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 652 | perf_event__process_lost(event, sample, session); |
Srikar Dronamraju | b83f920 | 2010-08-02 18:08:51 +0530 | [diff] [blame] | 653 | default: |
| 654 | break; |
| 655 | } |
| 656 | |
| 657 | return 0; |
| 658 | } |
| 659 | |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 660 | void thread__find_addr_map(struct thread *self, |
| 661 | struct perf_session *session, u8 cpumode, |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 662 | enum map_type type, pid_t pid, u64 addr, |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 663 | struct addr_location *al) |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 664 | { |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 665 | struct map_groups *mg = &self->mg; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 666 | struct machine *machine = NULL; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 667 | |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 668 | al->thread = self; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 669 | al->addr = addr; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 670 | al->cpumode = cpumode; |
| 671 | al->filtered = false; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 672 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 673 | if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 674 | al->level = 'k'; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 675 | machine = perf_session__find_host_machine(session); |
Arnaldo Carvalho de Melo | 4cc4945 | 2010-05-09 21:14:07 -0300 | [diff] [blame] | 676 | if (machine == NULL) { |
| 677 | al->map = NULL; |
| 678 | return; |
| 679 | } |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 680 | mg = &machine->kmaps; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 681 | } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 682 | al->level = '.'; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 683 | machine = perf_session__find_host_machine(session); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 684 | } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { |
| 685 | al->level = 'g'; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 686 | machine = perf_session__find_machine(session, pid); |
Arnaldo Carvalho de Melo | 4cc4945 | 2010-05-09 21:14:07 -0300 | [diff] [blame] | 687 | if (machine == NULL) { |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 688 | al->map = NULL; |
| 689 | return; |
| 690 | } |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 691 | mg = &machine->kmaps; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 692 | } else { |
| 693 | /* |
| 694 | * 'u' means guest os user space. |
| 695 | * TODO: We don't support guest user space. Might support late. |
| 696 | */ |
| 697 | if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) |
| 698 | al->level = 'u'; |
| 699 | else |
| 700 | al->level = 'H'; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 701 | al->map = NULL; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 702 | |
| 703 | if ((cpumode == PERF_RECORD_MISC_GUEST_USER || |
| 704 | cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && |
| 705 | !perf_guest) |
| 706 | al->filtered = true; |
| 707 | if ((cpumode == PERF_RECORD_MISC_USER || |
| 708 | cpumode == PERF_RECORD_MISC_KERNEL) && |
| 709 | !perf_host) |
| 710 | al->filtered = true; |
| 711 | |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 712 | return; |
| 713 | } |
| 714 | try_again: |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 715 | al->map = map_groups__find(mg, type, al->addr); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 716 | if (al->map == NULL) { |
| 717 | /* |
| 718 | * If this is outside of all known maps, and is a negative |
| 719 | * address, try to look it up in the kernel dso, as it might be |
| 720 | * a vsyscall or vdso (which executes in user-mode). |
| 721 | * |
| 722 | * XXX This is nasty, we should have a symbol list in the |
| 723 | * "[vdso]" dso, but for now lets use the old trick of looking |
| 724 | * in the whole kernel symbol list. |
| 725 | */ |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 726 | if ((long long)al->addr < 0 && |
Andrew Lutomirski | 6c6804f | 2011-03-24 00:36:56 -0400 | [diff] [blame] | 727 | cpumode == PERF_RECORD_MISC_USER && |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 728 | machine && mg != &machine->kmaps) { |
| 729 | mg = &machine->kmaps; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 730 | goto try_again; |
| 731 | } |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 732 | } else |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 733 | al->addr = al->map->map_ip(al->map, al->addr); |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 734 | } |
| 735 | |
| 736 | void thread__find_addr_location(struct thread *self, |
| 737 | struct perf_session *session, u8 cpumode, |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 738 | enum map_type type, pid_t pid, u64 addr, |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 739 | struct addr_location *al, |
| 740 | symbol_filter_t filter) |
| 741 | { |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 742 | thread__find_addr_map(self, session, cpumode, type, pid, addr, al); |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 743 | if (al->map != NULL) |
Arnaldo Carvalho de Melo | 9de89fe | 2010-02-03 16:52:00 -0200 | [diff] [blame] | 744 | al->sym = map__find_symbol(al->map, al->addr, filter); |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 745 | else |
| 746 | al->sym = NULL; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 747 | } |
| 748 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 749 | int perf_event__preprocess_sample(const union perf_event *event, |
| 750 | struct perf_session *session, |
| 751 | struct addr_location *al, |
| 752 | struct perf_sample *sample, |
| 753 | symbol_filter_t filter) |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 754 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 755 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
| 756 | struct thread *thread = perf_session__findnew(session, event->ip.pid); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 757 | |
| 758 | if (thread == NULL) |
| 759 | return -1; |
| 760 | |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 761 | if (symbol_conf.comm_list && |
| 762 | !strlist__has_entry(symbol_conf.comm_list, thread->comm)) |
| 763 | goto out_filtered; |
| 764 | |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 765 | dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); |
Arnaldo Carvalho de Melo | 1f626bc | 2010-05-09 19:57:08 -0300 | [diff] [blame] | 766 | /* |
| 767 | * Have we already created the kernel maps for the host machine? |
| 768 | * |
| 769 | * This should have happened earlier, when we processed the kernel MMAP |
| 770 | * events, but for older perf.data files there was no such thing, so do |
| 771 | * it now. |
| 772 | */ |
| 773 | if (cpumode == PERF_RECORD_MISC_KERNEL && |
| 774 | session->host_machine.vmlinux_maps[MAP__FUNCTION] == NULL) |
| 775 | machine__create_kernel_maps(&session->host_machine); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 776 | |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 777 | thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 778 | event->ip.pid, event->ip.ip, al); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 779 | dump_printf(" ...... dso: %s\n", |
| 780 | al->map ? al->map->dso->long_name : |
| 781 | al->level == 'H' ? "[hypervisor]" : "<not found>"); |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 782 | al->sym = NULL; |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 783 | al->cpu = sample->cpu; |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 784 | |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 785 | if (al->map) { |
| 786 | if (symbol_conf.dso_list && |
| 787 | (!al->map || !al->map->dso || |
| 788 | !(strlist__has_entry(symbol_conf.dso_list, |
| 789 | al->map->dso->short_name) || |
| 790 | (al->map->dso->short_name != al->map->dso->long_name && |
| 791 | strlist__has_entry(symbol_conf.dso_list, |
| 792 | al->map->dso->long_name))))) |
| 793 | goto out_filtered; |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 794 | |
| 795 | al->sym = map__find_symbol(al->map, al->addr, filter); |
| 796 | } |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 797 | |
| 798 | if (symbol_conf.sym_list && al->sym && |
| 799 | !strlist__has_entry(symbol_conf.sym_list, al->sym->name)) |
| 800 | goto out_filtered; |
| 801 | |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 802 | return 0; |
| 803 | |
| 804 | out_filtered: |
| 805 | al->filtered = true; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 806 | return 0; |
| 807 | } |