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 | f62d3f0 | 2012-10-06 15:44:59 -0300 | [diff] [blame] | 4 | #include "machine.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 | |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 47 | static pid_t perf_event__get_comm_tgid(pid_t pid, char *comm, size_t len) |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 48 | { |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 49 | char filename[PATH_MAX]; |
| 50 | char bf[BUFSIZ]; |
| 51 | FILE *fp; |
| 52 | size_t size = 0; |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 53 | pid_t tgid = -1; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 54 | |
| 55 | snprintf(filename, sizeof(filename), "/proc/%d/status", pid); |
| 56 | |
| 57 | fp = fopen(filename, "r"); |
| 58 | if (fp == NULL) { |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 59 | pr_debug("couldn't open %s\n", filename); |
| 60 | return 0; |
| 61 | } |
| 62 | |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 63 | while (!comm[0] || (tgid < 0)) { |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 64 | if (fgets(bf, sizeof(bf), fp) == NULL) { |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 65 | pr_warning("couldn't get COMM and pgid, malformed %s\n", |
| 66 | filename); |
| 67 | break; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 68 | } |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 69 | |
| 70 | if (memcmp(bf, "Name:", 5) == 0) { |
| 71 | char *name = bf + 5; |
| 72 | while (*name && isspace(*name)) |
| 73 | ++name; |
| 74 | size = strlen(name) - 1; |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 75 | if (size >= len) |
| 76 | size = len - 1; |
| 77 | memcpy(comm, name, size); |
David Ahern | cfbd70c | 2012-02-24 12:31:38 -0700 | [diff] [blame] | 78 | comm[size] = '\0'; |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 79 | |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 80 | } else if (memcmp(bf, "Tgid:", 5) == 0) { |
| 81 | char *tgids = bf + 5; |
| 82 | while (*tgids && isspace(*tgids)) |
| 83 | ++tgids; |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 84 | tgid = atoi(tgids); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 85 | } |
| 86 | } |
| 87 | |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 88 | fclose(fp); |
| 89 | |
| 90 | return tgid; |
| 91 | } |
| 92 | |
| 93 | static pid_t perf_event__synthesize_comm(struct perf_tool *tool, |
| 94 | union perf_event *event, pid_t pid, |
| 95 | int full, |
| 96 | perf_event__handler_t process, |
| 97 | struct machine *machine) |
| 98 | { |
| 99 | char filename[PATH_MAX]; |
| 100 | size_t size; |
| 101 | DIR *tasks; |
| 102 | struct dirent dirent, *next; |
| 103 | pid_t tgid; |
| 104 | |
| 105 | memset(&event->comm, 0, sizeof(event->comm)); |
| 106 | |
| 107 | tgid = perf_event__get_comm_tgid(pid, event->comm.comm, |
| 108 | sizeof(event->comm.comm)); |
| 109 | if (tgid < 0) |
| 110 | goto out; |
| 111 | |
| 112 | event->comm.pid = tgid; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 113 | event->comm.header.type = PERF_RECORD_COMM; |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 114 | |
| 115 | size = strlen(event->comm.comm) + 1; |
Irina Tirdea | 9ac3e48 | 2012-09-11 01:15:01 +0300 | [diff] [blame] | 116 | size = PERF_ALIGN(size, sizeof(u64)); |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 117 | memset(event->comm.comm + size, 0, machine->id_hdr_size); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 118 | event->comm.header.size = (sizeof(event->comm) - |
| 119 | (sizeof(event->comm.comm) - size) + |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 120 | machine->id_hdr_size); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 121 | if (!full) { |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 122 | event->comm.tid = pid; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 123 | |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 124 | if (process(tool, event, &synth_sample, machine) != 0) |
| 125 | return -1; |
| 126 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 127 | goto out; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 128 | } |
| 129 | |
| 130 | snprintf(filename, sizeof(filename), "/proc/%d/task", pid); |
| 131 | |
| 132 | tasks = opendir(filename); |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 133 | if (tasks == NULL) { |
| 134 | pr_debug("couldn't open %s\n", filename); |
| 135 | return 0; |
| 136 | } |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 137 | |
| 138 | while (!readdir_r(tasks, &dirent, &next) && next) { |
| 139 | char *end; |
| 140 | pid = strtol(dirent.d_name, &end, 10); |
| 141 | if (*end) |
| 142 | continue; |
| 143 | |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 144 | /* already have tgid; jut want to update the comm */ |
| 145 | (void) perf_event__get_comm_tgid(pid, event->comm.comm, |
| 146 | sizeof(event->comm.comm)); |
| 147 | |
| 148 | size = strlen(event->comm.comm) + 1; |
Irina Tirdea | 9ac3e48 | 2012-09-11 01:15:01 +0300 | [diff] [blame] | 149 | size = PERF_ALIGN(size, sizeof(u64)); |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 150 | memset(event->comm.comm + size, 0, machine->id_hdr_size); |
| 151 | event->comm.header.size = (sizeof(event->comm) - |
| 152 | (sizeof(event->comm.comm) - size) + |
| 153 | machine->id_hdr_size); |
| 154 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 155 | event->comm.tid = pid; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 156 | |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 157 | if (process(tool, event, &synth_sample, machine) != 0) { |
| 158 | tgid = -1; |
| 159 | break; |
| 160 | } |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 161 | } |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 162 | |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 163 | closedir(tasks); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 164 | out: |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 165 | return tgid; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 166 | } |
| 167 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 168 | static int perf_event__synthesize_mmap_events(struct perf_tool *tool, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 169 | union perf_event *event, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 170 | pid_t pid, pid_t tgid, |
| 171 | perf_event__handler_t process, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 172 | struct machine *machine) |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 173 | { |
| 174 | char filename[PATH_MAX]; |
| 175 | FILE *fp; |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 176 | int rc = 0; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 177 | |
| 178 | snprintf(filename, sizeof(filename), "/proc/%d/maps", pid); |
| 179 | |
| 180 | fp = fopen(filename, "r"); |
| 181 | if (fp == NULL) { |
| 182 | /* |
| 183 | * We raced with a task exiting - just return: |
| 184 | */ |
| 185 | pr_debug("couldn't open %s\n", filename); |
| 186 | return -1; |
| 187 | } |
| 188 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 189 | event->header.type = PERF_RECORD_MMAP; |
| 190 | /* |
| 191 | * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c |
| 192 | */ |
| 193 | event->header.misc = PERF_RECORD_MISC_USER; |
| 194 | |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 195 | while (1) { |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 196 | char bf[BUFSIZ]; |
| 197 | char prot[5]; |
| 198 | char execname[PATH_MAX]; |
| 199 | char anonstr[] = "//anon"; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 200 | size_t size; |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 201 | |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 202 | if (fgets(bf, sizeof(bf), fp) == NULL) |
| 203 | break; |
| 204 | |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 205 | /* ensure null termination since stack will be reused. */ |
| 206 | strcpy(execname, ""); |
| 207 | |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 208 | /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */ |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 209 | sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %*x:%*x %*u %s\n", |
| 210 | &event->mmap.start, &event->mmap.len, prot, |
| 211 | &event->mmap.pgoff, execname); |
| 212 | |
| 213 | if (prot[2] != 'x') |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 214 | continue; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 215 | |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 216 | if (!strcmp(execname, "")) |
| 217 | strcpy(execname, anonstr); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 218 | |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 219 | size = strlen(execname) + 1; |
| 220 | memcpy(event->mmap.filename, execname, size); |
| 221 | size = PERF_ALIGN(size, sizeof(u64)); |
| 222 | event->mmap.len -= event->mmap.start; |
| 223 | event->mmap.header.size = (sizeof(event->mmap) - |
| 224 | (sizeof(event->mmap.filename) - size)); |
| 225 | memset(event->mmap.filename + size, 0, machine->id_hdr_size); |
| 226 | event->mmap.header.size += machine->id_hdr_size; |
| 227 | event->mmap.pid = tgid; |
| 228 | event->mmap.tid = pid; |
Anton Blanchard | 6a0e55d | 2011-08-30 09:15:06 +1000 | [diff] [blame] | 229 | |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 230 | if (process(tool, event, &synth_sample, machine) != 0) { |
| 231 | rc = -1; |
| 232 | break; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 233 | } |
| 234 | } |
| 235 | |
| 236 | fclose(fp); |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 237 | return rc; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 238 | } |
| 239 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 240 | int perf_event__synthesize_modules(struct perf_tool *tool, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 241 | perf_event__handler_t process, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 242 | struct machine *machine) |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 243 | { |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 244 | int rc = 0; |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 245 | struct rb_node *nd; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 246 | struct map_groups *kmaps = &machine->kmaps; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 247 | union perf_event *event = zalloc((sizeof(event->mmap) + |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 248 | machine->id_hdr_size)); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 249 | if (event == NULL) { |
| 250 | pr_debug("Not enough memory synthesizing mmap event " |
| 251 | "for kernel modules\n"); |
| 252 | return -1; |
| 253 | } |
| 254 | |
| 255 | event->header.type = PERF_RECORD_MMAP; |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 256 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 257 | /* |
| 258 | * kernel uses 0 for user space maps, see kernel/perf_event.c |
| 259 | * __perf_event_mmap |
| 260 | */ |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 261 | if (machine__is_host(machine)) |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 262 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 263 | else |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 264 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 265 | |
| 266 | for (nd = rb_first(&kmaps->maps[MAP__FUNCTION]); |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 267 | nd; nd = rb_next(nd)) { |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 268 | size_t size; |
| 269 | struct map *pos = rb_entry(nd, struct map, rb_node); |
| 270 | |
| 271 | if (pos->dso->kernel) |
| 272 | continue; |
| 273 | |
Irina Tirdea | 9ac3e48 | 2012-09-11 01:15:01 +0300 | [diff] [blame] | 274 | size = PERF_ALIGN(pos->dso->long_name_len + 1, sizeof(u64)); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 275 | event->mmap.header.type = PERF_RECORD_MMAP; |
| 276 | event->mmap.header.size = (sizeof(event->mmap) - |
| 277 | (sizeof(event->mmap.filename) - size)); |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 278 | memset(event->mmap.filename + size, 0, machine->id_hdr_size); |
| 279 | event->mmap.header.size += machine->id_hdr_size; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 280 | event->mmap.start = pos->start; |
| 281 | event->mmap.len = pos->end - pos->start; |
| 282 | event->mmap.pid = machine->pid; |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 283 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 284 | memcpy(event->mmap.filename, pos->dso->long_name, |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 285 | pos->dso->long_name_len + 1); |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 286 | if (process(tool, event, &synth_sample, machine) != 0) { |
| 287 | rc = -1; |
| 288 | break; |
| 289 | } |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 290 | } |
| 291 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 292 | free(event); |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 293 | return rc; |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 294 | } |
| 295 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 296 | static int __event__synthesize_thread(union perf_event *comm_event, |
| 297 | union perf_event *mmap_event, |
David Ahern | defd8d3 | 2011-12-22 11:30:01 -0700 | [diff] [blame] | 298 | pid_t pid, int full, |
| 299 | perf_event__handler_t process, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 300 | struct perf_tool *tool, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 301 | struct machine *machine) |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 302 | { |
David Ahern | defd8d3 | 2011-12-22 11:30:01 -0700 | [diff] [blame] | 303 | pid_t tgid = perf_event__synthesize_comm(tool, comm_event, pid, full, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 304 | process, machine); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 305 | if (tgid == -1) |
| 306 | return -1; |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 307 | return perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 308 | process, machine); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 309 | } |
| 310 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 311 | int perf_event__synthesize_thread_map(struct perf_tool *tool, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 312 | struct thread_map *threads, |
Arnaldo Carvalho de Melo | 7c940c1 | 2011-02-11 11:45:54 -0200 | [diff] [blame] | 313 | perf_event__handler_t process, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 314 | struct machine *machine) |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 315 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 316 | union perf_event *comm_event, *mmap_event; |
David Ahern | defd8d3 | 2011-12-22 11:30:01 -0700 | [diff] [blame] | 317 | int err = -1, thread, j; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 318 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 319 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 320 | if (comm_event == NULL) |
| 321 | goto out; |
| 322 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 323 | mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 324 | if (mmap_event == NULL) |
| 325 | goto out_free_comm; |
| 326 | |
Arnaldo Carvalho de Melo | 401b8e1 | 2011-02-10 12:52:47 -0200 | [diff] [blame] | 327 | err = 0; |
| 328 | for (thread = 0; thread < threads->nr; ++thread) { |
| 329 | if (__event__synthesize_thread(comm_event, mmap_event, |
David Ahern | defd8d3 | 2011-12-22 11:30:01 -0700 | [diff] [blame] | 330 | threads->map[thread], 0, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 331 | process, tool, machine)) { |
Arnaldo Carvalho de Melo | 401b8e1 | 2011-02-10 12:52:47 -0200 | [diff] [blame] | 332 | err = -1; |
| 333 | break; |
| 334 | } |
David Ahern | defd8d3 | 2011-12-22 11:30:01 -0700 | [diff] [blame] | 335 | |
| 336 | /* |
| 337 | * comm.pid is set to thread group id by |
| 338 | * perf_event__synthesize_comm |
| 339 | */ |
| 340 | if ((int) comm_event->comm.pid != threads->map[thread]) { |
| 341 | bool need_leader = true; |
| 342 | |
| 343 | /* is thread group leader in thread_map? */ |
| 344 | for (j = 0; j < threads->nr; ++j) { |
| 345 | if ((int) comm_event->comm.pid == threads->map[j]) { |
| 346 | need_leader = false; |
| 347 | break; |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | /* if not, generate events for it */ |
| 352 | if (need_leader && |
| 353 | __event__synthesize_thread(comm_event, |
| 354 | mmap_event, |
| 355 | comm_event->comm.pid, 0, |
| 356 | process, tool, machine)) { |
| 357 | err = -1; |
| 358 | break; |
| 359 | } |
| 360 | } |
Arnaldo Carvalho de Melo | 401b8e1 | 2011-02-10 12:52:47 -0200 | [diff] [blame] | 361 | } |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 362 | free(mmap_event); |
| 363 | out_free_comm: |
| 364 | free(comm_event); |
| 365 | out: |
| 366 | return err; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 367 | } |
| 368 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 369 | int perf_event__synthesize_threads(struct perf_tool *tool, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 370 | perf_event__handler_t process, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 371 | struct machine *machine) |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 372 | { |
| 373 | DIR *proc; |
| 374 | struct dirent dirent, *next; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 375 | union perf_event *comm_event, *mmap_event; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 376 | int err = -1; |
| 377 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 378 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 379 | if (comm_event == NULL) |
| 380 | goto out; |
| 381 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 382 | mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 383 | if (mmap_event == NULL) |
| 384 | goto out_free_comm; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 385 | |
| 386 | proc = opendir("/proc"); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 387 | if (proc == NULL) |
| 388 | goto out_free_mmap; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 389 | |
| 390 | while (!readdir_r(proc, &dirent, &next) && next) { |
| 391 | char *end; |
| 392 | pid_t pid = strtol(dirent.d_name, &end, 10); |
| 393 | |
| 394 | if (*end) /* only interested in proper numerical dirents */ |
| 395 | continue; |
Arnaldo Carvalho de Melo | ba361c9 | 2012-10-17 18:50:13 -0300 | [diff] [blame] | 396 | /* |
| 397 | * We may race with exiting thread, so don't stop just because |
| 398 | * one thread couldn't be synthesized. |
| 399 | */ |
| 400 | __event__synthesize_thread(comm_event, mmap_event, pid, 1, |
| 401 | process, tool, machine); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 402 | } |
| 403 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 404 | err = 0; |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 405 | closedir(proc); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 406 | out_free_mmap: |
| 407 | free(mmap_event); |
| 408 | out_free_comm: |
| 409 | free(comm_event); |
| 410 | out: |
| 411 | return err; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 412 | } |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 413 | |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 414 | struct process_symbol_args { |
| 415 | const char *name; |
| 416 | u64 start; |
| 417 | }; |
| 418 | |
Arnaldo Carvalho de Melo | 3b01a41 | 2010-12-22 01:08:36 -0200 | [diff] [blame] | 419 | static int find_symbol_cb(void *arg, const char *name, char type, |
Cody P Schafer | 8215152 | 2012-08-10 15:22:48 -0700 | [diff] [blame] | 420 | u64 start) |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 421 | { |
| 422 | struct process_symbol_args *args = arg; |
| 423 | |
Arnaldo Carvalho de Melo | 881516e | 2010-01-15 18:08:27 -0200 | [diff] [blame] | 424 | /* |
| 425 | * Must be a function or at least an alias, as in PARISC64, where "_text" is |
| 426 | * an 'A' to the same address as "_stext". |
| 427 | */ |
| 428 | if (!(symbol_type__is_a(type, MAP__FUNCTION) || |
| 429 | type == 'A') || strcmp(name, args->name)) |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 430 | return 0; |
| 431 | |
| 432 | args->start = start; |
| 433 | return 1; |
| 434 | } |
| 435 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 436 | int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 437 | perf_event__handler_t process, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 438 | struct machine *machine, |
| 439 | const char *symbol_name) |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 440 | { |
| 441 | size_t size; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 442 | const char *filename, *mmap_name; |
| 443 | char path[PATH_MAX]; |
| 444 | char name_buff[PATH_MAX]; |
| 445 | struct map *map; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 446 | int err; |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 447 | /* |
| 448 | * We should get this from /sys/kernel/sections/.text, but till that is |
| 449 | * available use this, and after it is use this as a fallback for older |
| 450 | * kernels. |
| 451 | */ |
| 452 | struct process_symbol_args args = { .name = symbol_name, }; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 453 | union perf_event *event = zalloc((sizeof(event->mmap) + |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 454 | machine->id_hdr_size)); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 455 | if (event == NULL) { |
| 456 | pr_debug("Not enough memory synthesizing mmap event " |
| 457 | "for kernel modules\n"); |
| 458 | return -1; |
| 459 | } |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 460 | |
Arnaldo Carvalho de Melo | 48ea8f5 | 2010-04-27 21:19:05 -0300 | [diff] [blame] | 461 | 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] | 462 | if (machine__is_host(machine)) { |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 463 | /* |
| 464 | * kernel uses PERF_RECORD_MISC_USER for user space maps, |
| 465 | * see kernel/perf_event.c __perf_event_mmap |
| 466 | */ |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 467 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 468 | filename = "/proc/kallsyms"; |
| 469 | } else { |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 470 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 471 | if (machine__is_default_guest(machine)) |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 472 | filename = (char *) symbol_conf.default_guest_kallsyms; |
| 473 | else { |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 474 | sprintf(path, "%s/proc/kallsyms", machine->root_dir); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 475 | filename = path; |
| 476 | } |
| 477 | } |
| 478 | |
Thomas Jarosch | 0b9e01a | 2013-01-25 11:20:47 +0100 | [diff] [blame] | 479 | if (kallsyms__parse(filename, &args, find_symbol_cb) <= 0) { |
| 480 | free(event); |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 481 | return -ENOENT; |
Thomas Jarosch | 0b9e01a | 2013-01-25 11:20:47 +0100 | [diff] [blame] | 482 | } |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 483 | |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 484 | map = machine->vmlinux_maps[MAP__FUNCTION]; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 485 | size = snprintf(event->mmap.filename, sizeof(event->mmap.filename), |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 486 | "%s%s", mmap_name, symbol_name) + 1; |
Irina Tirdea | 9ac3e48 | 2012-09-11 01:15:01 +0300 | [diff] [blame] | 487 | size = PERF_ALIGN(size, sizeof(u64)); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 488 | event->mmap.header.type = PERF_RECORD_MMAP; |
| 489 | event->mmap.header.size = (sizeof(event->mmap) - |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 490 | (sizeof(event->mmap.filename) - size) + machine->id_hdr_size); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 491 | event->mmap.pgoff = args.start; |
| 492 | event->mmap.start = map->start; |
| 493 | event->mmap.len = map->end - event->mmap.start; |
| 494 | event->mmap.pid = machine->pid; |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 495 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 496 | err = process(tool, event, &synth_sample, machine); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 497 | free(event); |
| 498 | |
| 499 | return err; |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 500 | } |
| 501 | |
Arnaldo Carvalho de Melo | 482ad89 | 2011-12-02 11:06:37 -0200 | [diff] [blame] | 502 | size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) |
| 503 | { |
| 504 | return fprintf(fp, ": %s:%d\n", event->comm.comm, event->comm.tid); |
| 505 | } |
| 506 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 507 | int perf_event__process_comm(struct perf_tool *tool __maybe_unused, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 508 | union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 509 | struct perf_sample *sample __maybe_unused, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 510 | struct machine *machine) |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 511 | { |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 512 | return machine__process_comm_event(machine, event); |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 513 | } |
| 514 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 515 | int perf_event__process_lost(struct perf_tool *tool __maybe_unused, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 516 | union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 517 | struct perf_sample *sample __maybe_unused, |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 518 | struct machine *machine) |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 519 | { |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 520 | return machine__process_lost_event(machine, event); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 521 | } |
| 522 | |
Arnaldo Carvalho de Melo | 482ad89 | 2011-12-02 11:06:37 -0200 | [diff] [blame] | 523 | size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) |
| 524 | { |
| 525 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %s\n", |
| 526 | event->mmap.pid, event->mmap.tid, event->mmap.start, |
| 527 | event->mmap.len, event->mmap.pgoff, event->mmap.filename); |
| 528 | } |
| 529 | |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 530 | int perf_event__process_mmap(struct perf_tool *tool __maybe_unused, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 531 | union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 532 | struct perf_sample *sample __maybe_unused, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 533 | struct machine *machine) |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 534 | { |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 535 | return machine__process_mmap_event(machine, event); |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 536 | } |
| 537 | |
Arnaldo Carvalho de Melo | 482ad89 | 2011-12-02 11:06:37 -0200 | [diff] [blame] | 538 | size_t perf_event__fprintf_task(union perf_event *event, FILE *fp) |
| 539 | { |
| 540 | return fprintf(fp, "(%d:%d):(%d:%d)\n", |
| 541 | event->fork.pid, event->fork.tid, |
| 542 | event->fork.ppid, event->fork.ptid); |
| 543 | } |
| 544 | |
Arnaldo Carvalho de Melo | f62d3f0 | 2012-10-06 15:44:59 -0300 | [diff] [blame] | 545 | int perf_event__process_fork(struct perf_tool *tool __maybe_unused, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 546 | union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 547 | struct perf_sample *sample __maybe_unused, |
Arnaldo Carvalho de Melo | f62d3f0 | 2012-10-06 15:44:59 -0300 | [diff] [blame] | 548 | struct machine *machine) |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 549 | { |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 550 | return machine__process_fork_event(machine, event); |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 551 | } |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 552 | |
Arnaldo Carvalho de Melo | f62d3f0 | 2012-10-06 15:44:59 -0300 | [diff] [blame] | 553 | int perf_event__process_exit(struct perf_tool *tool __maybe_unused, |
| 554 | union perf_event *event, |
| 555 | struct perf_sample *sample __maybe_unused, |
| 556 | struct machine *machine) |
| 557 | { |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 558 | return machine__process_exit_event(machine, event); |
Arnaldo Carvalho de Melo | f62d3f0 | 2012-10-06 15:44:59 -0300 | [diff] [blame] | 559 | } |
| 560 | |
Arnaldo Carvalho de Melo | 482ad89 | 2011-12-02 11:06:37 -0200 | [diff] [blame] | 561 | size_t perf_event__fprintf(union perf_event *event, FILE *fp) |
| 562 | { |
| 563 | size_t ret = fprintf(fp, "PERF_RECORD_%s", |
| 564 | perf_event__name(event->header.type)); |
| 565 | |
| 566 | switch (event->header.type) { |
| 567 | case PERF_RECORD_COMM: |
| 568 | ret += perf_event__fprintf_comm(event, fp); |
| 569 | break; |
| 570 | case PERF_RECORD_FORK: |
| 571 | case PERF_RECORD_EXIT: |
| 572 | ret += perf_event__fprintf_task(event, fp); |
| 573 | break; |
| 574 | case PERF_RECORD_MMAP: |
| 575 | ret += perf_event__fprintf_mmap(event, fp); |
| 576 | break; |
| 577 | default: |
| 578 | ret += fprintf(fp, "\n"); |
| 579 | } |
| 580 | |
| 581 | return ret; |
| 582 | } |
| 583 | |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 584 | int perf_event__process(struct perf_tool *tool __maybe_unused, |
| 585 | union perf_event *event, |
| 586 | struct perf_sample *sample __maybe_unused, |
| 587 | struct machine *machine) |
Srikar Dronamraju | b83f920 | 2010-08-02 18:08:51 +0530 | [diff] [blame] | 588 | { |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 589 | return machine__process_event(machine, event); |
Srikar Dronamraju | b83f920 | 2010-08-02 18:08:51 +0530 | [diff] [blame] | 590 | } |
| 591 | |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 592 | void thread__find_addr_map(struct thread *self, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 593 | struct machine *machine, u8 cpumode, |
| 594 | enum map_type type, u64 addr, |
Adrian Hunter | 5b7ba82 | 2013-08-07 14:38:46 +0300 | [diff] [blame^] | 595 | struct addr_location *al, symbol_filter_t filter) |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 596 | { |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 597 | struct map_groups *mg = &self->mg; |
Adrian Hunter | 5b7ba82 | 2013-08-07 14:38:46 +0300 | [diff] [blame^] | 598 | bool load_map = false; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 599 | |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 600 | al->thread = self; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 601 | al->addr = addr; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 602 | al->cpumode = cpumode; |
| 603 | al->filtered = false; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 604 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 605 | if (machine == NULL) { |
| 606 | al->map = NULL; |
| 607 | return; |
| 608 | } |
| 609 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 610 | if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 611 | al->level = 'k'; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 612 | mg = &machine->kmaps; |
Adrian Hunter | 5b7ba82 | 2013-08-07 14:38:46 +0300 | [diff] [blame^] | 613 | load_map = true; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 614 | } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 615 | al->level = '.'; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 616 | } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { |
| 617 | al->level = 'g'; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 618 | mg = &machine->kmaps; |
Adrian Hunter | 5b7ba82 | 2013-08-07 14:38:46 +0300 | [diff] [blame^] | 619 | load_map = true; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 620 | } else { |
| 621 | /* |
| 622 | * 'u' means guest os user space. |
| 623 | * TODO: We don't support guest user space. Might support late. |
| 624 | */ |
| 625 | if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) |
| 626 | al->level = 'u'; |
| 627 | else |
| 628 | al->level = 'H'; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 629 | al->map = NULL; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 630 | |
| 631 | if ((cpumode == PERF_RECORD_MISC_GUEST_USER || |
| 632 | cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && |
| 633 | !perf_guest) |
| 634 | al->filtered = true; |
| 635 | if ((cpumode == PERF_RECORD_MISC_USER || |
| 636 | cpumode == PERF_RECORD_MISC_KERNEL) && |
| 637 | !perf_host) |
| 638 | al->filtered = true; |
| 639 | |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 640 | return; |
| 641 | } |
| 642 | try_again: |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 643 | al->map = map_groups__find(mg, type, al->addr); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 644 | if (al->map == NULL) { |
| 645 | /* |
| 646 | * If this is outside of all known maps, and is a negative |
| 647 | * address, try to look it up in the kernel dso, as it might be |
| 648 | * a vsyscall or vdso (which executes in user-mode). |
| 649 | * |
| 650 | * XXX This is nasty, we should have a symbol list in the |
| 651 | * "[vdso]" dso, but for now lets use the old trick of looking |
| 652 | * in the whole kernel symbol list. |
| 653 | */ |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 654 | if ((long long)al->addr < 0 && |
Andrew Lutomirski | 6c6804fb | 2011-03-24 00:36:56 -0400 | [diff] [blame] | 655 | cpumode == PERF_RECORD_MISC_USER && |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 656 | machine && mg != &machine->kmaps) { |
| 657 | mg = &machine->kmaps; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 658 | goto try_again; |
| 659 | } |
Adrian Hunter | 5b7ba82 | 2013-08-07 14:38:46 +0300 | [diff] [blame^] | 660 | } else { |
| 661 | /* |
| 662 | * Kernel maps might be changed when loading symbols so loading |
| 663 | * must be done prior to using kernel maps. |
| 664 | */ |
| 665 | if (load_map) |
| 666 | map__load(al->map, filter); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 667 | al->addr = al->map->map_ip(al->map, al->addr); |
Adrian Hunter | 5b7ba82 | 2013-08-07 14:38:46 +0300 | [diff] [blame^] | 668 | } |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 669 | } |
| 670 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 671 | void thread__find_addr_location(struct thread *thread, struct machine *machine, |
| 672 | u8 cpumode, enum map_type type, u64 addr, |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 673 | struct addr_location *al, |
| 674 | symbol_filter_t filter) |
| 675 | { |
Adrian Hunter | 5b7ba82 | 2013-08-07 14:38:46 +0300 | [diff] [blame^] | 676 | thread__find_addr_map(thread, machine, cpumode, type, addr, al, filter); |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 677 | if (al->map != NULL) |
Arnaldo Carvalho de Melo | 9de89fe | 2010-02-03 16:52:00 -0200 | [diff] [blame] | 678 | al->sym = map__find_symbol(al->map, al->addr, filter); |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 679 | else |
| 680 | al->sym = NULL; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 681 | } |
| 682 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 683 | int perf_event__preprocess_sample(const union perf_event *event, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 684 | struct machine *machine, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 685 | struct addr_location *al, |
| 686 | struct perf_sample *sample, |
| 687 | symbol_filter_t filter) |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 688 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 689 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 690 | struct thread *thread = machine__findnew_thread(machine, event->ip.pid); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 691 | |
| 692 | if (thread == NULL) |
| 693 | return -1; |
| 694 | |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 695 | if (symbol_conf.comm_list && |
| 696 | !strlist__has_entry(symbol_conf.comm_list, thread->comm)) |
| 697 | goto out_filtered; |
| 698 | |
Adrian Hunter | 3805123 | 2013-07-04 16:20:31 +0300 | [diff] [blame] | 699 | dump_printf(" ... thread: %s:%d\n", thread->comm, thread->tid); |
Arnaldo Carvalho de Melo | 1f626bc | 2010-05-09 19:57:08 -0300 | [diff] [blame] | 700 | /* |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 701 | * Have we already created the kernel maps for this machine? |
Arnaldo Carvalho de Melo | 1f626bc | 2010-05-09 19:57:08 -0300 | [diff] [blame] | 702 | * |
| 703 | * This should have happened earlier, when we processed the kernel MMAP |
| 704 | * events, but for older perf.data files there was no such thing, so do |
| 705 | * it now. |
| 706 | */ |
| 707 | if (cpumode == PERF_RECORD_MISC_KERNEL && |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 708 | machine->vmlinux_maps[MAP__FUNCTION] == NULL) |
| 709 | machine__create_kernel_maps(machine); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 710 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 711 | thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, |
Adrian Hunter | 5b7ba82 | 2013-08-07 14:38:46 +0300 | [diff] [blame^] | 712 | event->ip.ip, al, filter); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 713 | dump_printf(" ...... dso: %s\n", |
| 714 | al->map ? al->map->dso->long_name : |
| 715 | al->level == 'H' ? "[hypervisor]" : "<not found>"); |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 716 | al->sym = NULL; |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 717 | al->cpu = sample->cpu; |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 718 | |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 719 | if (al->map) { |
Namhyung Kim | cb8f4e9 | 2011-12-13 00:16:55 +0900 | [diff] [blame] | 720 | struct dso *dso = al->map->dso; |
| 721 | |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 722 | if (symbol_conf.dso_list && |
Namhyung Kim | cb8f4e9 | 2011-12-13 00:16:55 +0900 | [diff] [blame] | 723 | (!dso || !(strlist__has_entry(symbol_conf.dso_list, |
| 724 | dso->short_name) || |
| 725 | (dso->short_name != dso->long_name && |
| 726 | strlist__has_entry(symbol_conf.dso_list, |
| 727 | dso->long_name))))) |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 728 | goto out_filtered; |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 729 | |
| 730 | al->sym = map__find_symbol(al->map, al->addr, filter); |
| 731 | } |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 732 | |
Feng Tang | 1500b93 | 2012-09-07 16:42:23 +0800 | [diff] [blame] | 733 | if (symbol_conf.sym_list && |
| 734 | (!al->sym || !strlist__has_entry(symbol_conf.sym_list, |
| 735 | al->sym->name))) |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 736 | goto out_filtered; |
| 737 | |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 738 | return 0; |
| 739 | |
| 740 | out_filtered: |
| 741 | al->filtered = true; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 742 | return 0; |
| 743 | } |