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", |
Stephane Eranian | 5c5e854 | 2013-08-21 12:10:25 +0200 | [diff] [blame] | 14 | [PERF_RECORD_MMAP2] = "MMAP2", |
Frederic Weisbecker | 3cb6d15 | 2011-05-23 13:06:27 +0200 | [diff] [blame] | 15 | [PERF_RECORD_LOST] = "LOST", |
| 16 | [PERF_RECORD_COMM] = "COMM", |
| 17 | [PERF_RECORD_EXIT] = "EXIT", |
| 18 | [PERF_RECORD_THROTTLE] = "THROTTLE", |
| 19 | [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE", |
| 20 | [PERF_RECORD_FORK] = "FORK", |
| 21 | [PERF_RECORD_READ] = "READ", |
| 22 | [PERF_RECORD_SAMPLE] = "SAMPLE", |
| 23 | [PERF_RECORD_HEADER_ATTR] = "ATTR", |
| 24 | [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE", |
| 25 | [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA", |
| 26 | [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID", |
| 27 | [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND", |
Arnaldo Carvalho de Melo | c8446b9 | 2010-05-14 10:36:42 -0300 | [diff] [blame] | 28 | }; |
| 29 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 30 | const char *perf_event__name(unsigned int id) |
Thomas Gleixner | 3835bc0 | 2010-12-07 12:48:42 +0000 | [diff] [blame] | 31 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 32 | if (id >= ARRAY_SIZE(perf_event__names)) |
Thomas Gleixner | 3835bc0 | 2010-12-07 12:48:42 +0000 | [diff] [blame] | 33 | return "INVALID"; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 34 | if (!perf_event__names[id]) |
Thomas Gleixner | 3835bc0 | 2010-12-07 12:48:42 +0000 | [diff] [blame] | 35 | return "UNKNOWN"; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 36 | return perf_event__names[id]; |
Thomas Gleixner | 3835bc0 | 2010-12-07 12:48:42 +0000 | [diff] [blame] | 37 | } |
| 38 | |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 39 | static struct perf_sample synth_sample = { |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 40 | .pid = -1, |
| 41 | .tid = -1, |
| 42 | .time = -1, |
| 43 | .stream_id = -1, |
| 44 | .cpu = -1, |
| 45 | .period = 1, |
| 46 | }; |
| 47 | |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 48 | 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] | 49 | { |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 50 | char filename[PATH_MAX]; |
| 51 | char bf[BUFSIZ]; |
| 52 | FILE *fp; |
| 53 | size_t size = 0; |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 54 | pid_t tgid = -1; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 55 | |
| 56 | snprintf(filename, sizeof(filename), "/proc/%d/status", pid); |
| 57 | |
| 58 | fp = fopen(filename, "r"); |
| 59 | if (fp == NULL) { |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 60 | pr_debug("couldn't open %s\n", filename); |
| 61 | return 0; |
| 62 | } |
| 63 | |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 64 | while (!comm[0] || (tgid < 0)) { |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 65 | if (fgets(bf, sizeof(bf), fp) == NULL) { |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 66 | pr_warning("couldn't get COMM and pgid, malformed %s\n", |
| 67 | filename); |
| 68 | break; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 69 | } |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 70 | |
| 71 | if (memcmp(bf, "Name:", 5) == 0) { |
| 72 | char *name = bf + 5; |
| 73 | while (*name && isspace(*name)) |
| 74 | ++name; |
| 75 | size = strlen(name) - 1; |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 76 | if (size >= len) |
| 77 | size = len - 1; |
| 78 | memcpy(comm, name, size); |
David Ahern | cfbd70c | 2012-02-24 12:31:38 -0700 | [diff] [blame] | 79 | comm[size] = '\0'; |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 80 | |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 81 | } else if (memcmp(bf, "Tgid:", 5) == 0) { |
| 82 | char *tgids = bf + 5; |
| 83 | while (*tgids && isspace(*tgids)) |
| 84 | ++tgids; |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 85 | tgid = atoi(tgids); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 86 | } |
| 87 | } |
| 88 | |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 89 | fclose(fp); |
| 90 | |
| 91 | return tgid; |
| 92 | } |
| 93 | |
| 94 | static pid_t perf_event__synthesize_comm(struct perf_tool *tool, |
| 95 | union perf_event *event, pid_t pid, |
| 96 | int full, |
| 97 | perf_event__handler_t process, |
| 98 | struct machine *machine) |
| 99 | { |
| 100 | char filename[PATH_MAX]; |
| 101 | size_t size; |
| 102 | DIR *tasks; |
| 103 | struct dirent dirent, *next; |
| 104 | pid_t tgid; |
| 105 | |
| 106 | memset(&event->comm, 0, sizeof(event->comm)); |
| 107 | |
| 108 | tgid = perf_event__get_comm_tgid(pid, event->comm.comm, |
| 109 | sizeof(event->comm.comm)); |
| 110 | if (tgid < 0) |
| 111 | goto out; |
| 112 | |
| 113 | event->comm.pid = tgid; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 114 | event->comm.header.type = PERF_RECORD_COMM; |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 115 | |
| 116 | size = strlen(event->comm.comm) + 1; |
Irina Tirdea | 9ac3e48 | 2012-09-11 01:15:01 +0300 | [diff] [blame] | 117 | size = PERF_ALIGN(size, sizeof(u64)); |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 118 | memset(event->comm.comm + size, 0, machine->id_hdr_size); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 119 | event->comm.header.size = (sizeof(event->comm) - |
| 120 | (sizeof(event->comm.comm) - size) + |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 121 | machine->id_hdr_size); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 122 | if (!full) { |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 123 | event->comm.tid = pid; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 124 | |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 125 | if (process(tool, event, &synth_sample, machine) != 0) |
| 126 | return -1; |
| 127 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 128 | goto out; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 129 | } |
| 130 | |
| 131 | snprintf(filename, sizeof(filename), "/proc/%d/task", pid); |
| 132 | |
| 133 | tasks = opendir(filename); |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 134 | if (tasks == NULL) { |
| 135 | pr_debug("couldn't open %s\n", filename); |
| 136 | return 0; |
| 137 | } |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 138 | |
| 139 | while (!readdir_r(tasks, &dirent, &next) && next) { |
| 140 | char *end; |
| 141 | pid = strtol(dirent.d_name, &end, 10); |
| 142 | if (*end) |
| 143 | continue; |
| 144 | |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 145 | /* already have tgid; jut want to update the comm */ |
| 146 | (void) perf_event__get_comm_tgid(pid, event->comm.comm, |
| 147 | sizeof(event->comm.comm)); |
| 148 | |
| 149 | size = strlen(event->comm.comm) + 1; |
Irina Tirdea | 9ac3e48 | 2012-09-11 01:15:01 +0300 | [diff] [blame] | 150 | size = PERF_ALIGN(size, sizeof(u64)); |
David Ahern | f5faf72 | 2011-12-22 11:30:02 -0700 | [diff] [blame] | 151 | memset(event->comm.comm + size, 0, machine->id_hdr_size); |
| 152 | event->comm.header.size = (sizeof(event->comm) - |
| 153 | (sizeof(event->comm.comm) - size) + |
| 154 | machine->id_hdr_size); |
| 155 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 156 | event->comm.tid = pid; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 157 | |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 158 | if (process(tool, event, &synth_sample, machine) != 0) { |
| 159 | tgid = -1; |
| 160 | break; |
| 161 | } |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 162 | } |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 163 | |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 164 | closedir(tasks); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 165 | out: |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 166 | return tgid; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 167 | } |
| 168 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 169 | 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] | 170 | union perf_event *event, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 171 | pid_t pid, pid_t tgid, |
| 172 | perf_event__handler_t process, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 173 | struct machine *machine) |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 174 | { |
| 175 | char filename[PATH_MAX]; |
| 176 | FILE *fp; |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 177 | int rc = 0; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 178 | |
| 179 | snprintf(filename, sizeof(filename), "/proc/%d/maps", pid); |
| 180 | |
| 181 | fp = fopen(filename, "r"); |
| 182 | if (fp == NULL) { |
| 183 | /* |
| 184 | * We raced with a task exiting - just return: |
| 185 | */ |
| 186 | pr_debug("couldn't open %s\n", filename); |
| 187 | return -1; |
| 188 | } |
| 189 | |
Stephane Eranian | 3090ffb | 2013-10-17 19:32:15 +0200 | [diff] [blame^] | 190 | event->header.type = PERF_RECORD_MMAP; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 191 | /* |
| 192 | * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c |
| 193 | */ |
| 194 | event->header.misc = PERF_RECORD_MISC_USER; |
| 195 | |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 196 | while (1) { |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 197 | char bf[BUFSIZ]; |
| 198 | char prot[5]; |
| 199 | char execname[PATH_MAX]; |
| 200 | char anonstr[] = "//anon"; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 201 | size_t size; |
Stephane Eranian | 5c5e854 | 2013-08-21 12:10:25 +0200 | [diff] [blame] | 202 | ssize_t n; |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 203 | |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 204 | if (fgets(bf, sizeof(bf), fp) == NULL) |
| 205 | break; |
| 206 | |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 207 | /* ensure null termination since stack will be reused. */ |
| 208 | strcpy(execname, ""); |
| 209 | |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 210 | /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */ |
Stephane Eranian | 3090ffb | 2013-10-17 19:32:15 +0200 | [diff] [blame^] | 211 | n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %*x:%*x %*u %s\n", |
| 212 | &event->mmap.start, &event->mmap.len, prot, |
| 213 | &event->mmap.pgoff, |
| 214 | execname); |
Stephane Eranian | 5c5e854 | 2013-08-21 12:10:25 +0200 | [diff] [blame] | 215 | |
| 216 | if (n != 8) |
| 217 | continue; |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 218 | |
| 219 | if (prot[2] != 'x') |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 220 | continue; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 221 | |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 222 | if (!strcmp(execname, "")) |
| 223 | strcpy(execname, anonstr); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 224 | |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 225 | size = strlen(execname) + 1; |
Stephane Eranian | 3090ffb | 2013-10-17 19:32:15 +0200 | [diff] [blame^] | 226 | memcpy(event->mmap.filename, execname, size); |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 227 | size = PERF_ALIGN(size, sizeof(u64)); |
Stephane Eranian | 3090ffb | 2013-10-17 19:32:15 +0200 | [diff] [blame^] | 228 | event->mmap.len -= event->mmap.start; |
| 229 | event->mmap.header.size = (sizeof(event->mmap) - |
| 230 | (sizeof(event->mmap.filename) - size)); |
| 231 | memset(event->mmap.filename + size, 0, machine->id_hdr_size); |
| 232 | event->mmap.header.size += machine->id_hdr_size; |
| 233 | event->mmap.pid = tgid; |
| 234 | event->mmap.tid = pid; |
Anton Blanchard | 6a0e55d | 2011-08-30 09:15:06 +1000 | [diff] [blame] | 235 | |
Namhyung Kim | 6064803 | 2012-11-11 23:20:50 +0900 | [diff] [blame] | 236 | if (process(tool, event, &synth_sample, machine) != 0) { |
| 237 | rc = -1; |
| 238 | break; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 239 | } |
| 240 | } |
| 241 | |
| 242 | fclose(fp); |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 243 | return rc; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 244 | } |
| 245 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 246 | int perf_event__synthesize_modules(struct perf_tool *tool, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 247 | perf_event__handler_t process, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 248 | struct machine *machine) |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 249 | { |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 250 | int rc = 0; |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 251 | struct rb_node *nd; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 252 | struct map_groups *kmaps = &machine->kmaps; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 253 | union perf_event *event = zalloc((sizeof(event->mmap) + |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 254 | machine->id_hdr_size)); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 255 | if (event == NULL) { |
| 256 | pr_debug("Not enough memory synthesizing mmap event " |
| 257 | "for kernel modules\n"); |
| 258 | return -1; |
| 259 | } |
| 260 | |
| 261 | event->header.type = PERF_RECORD_MMAP; |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 262 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 263 | /* |
| 264 | * kernel uses 0 for user space maps, see kernel/perf_event.c |
| 265 | * __perf_event_mmap |
| 266 | */ |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 267 | if (machine__is_host(machine)) |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 268 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 269 | else |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 270 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 271 | |
| 272 | for (nd = rb_first(&kmaps->maps[MAP__FUNCTION]); |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 273 | nd; nd = rb_next(nd)) { |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 274 | size_t size; |
| 275 | struct map *pos = rb_entry(nd, struct map, rb_node); |
| 276 | |
| 277 | if (pos->dso->kernel) |
| 278 | continue; |
| 279 | |
Irina Tirdea | 9ac3e48 | 2012-09-11 01:15:01 +0300 | [diff] [blame] | 280 | 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] | 281 | event->mmap.header.type = PERF_RECORD_MMAP; |
| 282 | event->mmap.header.size = (sizeof(event->mmap) - |
| 283 | (sizeof(event->mmap.filename) - size)); |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 284 | memset(event->mmap.filename + size, 0, machine->id_hdr_size); |
| 285 | event->mmap.header.size += machine->id_hdr_size; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 286 | event->mmap.start = pos->start; |
| 287 | event->mmap.len = pos->end - pos->start; |
| 288 | event->mmap.pid = machine->pid; |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 289 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 290 | memcpy(event->mmap.filename, pos->dso->long_name, |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 291 | pos->dso->long_name_len + 1); |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 292 | if (process(tool, event, &synth_sample, machine) != 0) { |
| 293 | rc = -1; |
| 294 | break; |
| 295 | } |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 296 | } |
| 297 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 298 | free(event); |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 299 | return rc; |
Arnaldo Carvalho de Melo | b7cece7 | 2010-01-13 13:22:17 -0200 | [diff] [blame] | 300 | } |
| 301 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 302 | static int __event__synthesize_thread(union perf_event *comm_event, |
| 303 | union perf_event *mmap_event, |
David Ahern | defd8d3 | 2011-12-22 11:30:01 -0700 | [diff] [blame] | 304 | pid_t pid, int full, |
| 305 | perf_event__handler_t process, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 306 | struct perf_tool *tool, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 307 | struct machine *machine) |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 308 | { |
David Ahern | defd8d3 | 2011-12-22 11:30:01 -0700 | [diff] [blame] | 309 | 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] | 310 | process, machine); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 311 | if (tgid == -1) |
| 312 | return -1; |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 313 | 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] | 314 | process, machine); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 315 | } |
| 316 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 317 | int perf_event__synthesize_thread_map(struct perf_tool *tool, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 318 | struct thread_map *threads, |
Arnaldo Carvalho de Melo | 7c940c1 | 2011-02-11 11:45:54 -0200 | [diff] [blame] | 319 | perf_event__handler_t process, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 320 | struct machine *machine) |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 321 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 322 | union perf_event *comm_event, *mmap_event; |
David Ahern | defd8d3 | 2011-12-22 11:30:01 -0700 | [diff] [blame] | 323 | int err = -1, thread, j; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 324 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 325 | 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] | 326 | if (comm_event == NULL) |
| 327 | goto out; |
| 328 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 329 | 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] | 330 | if (mmap_event == NULL) |
| 331 | goto out_free_comm; |
| 332 | |
Arnaldo Carvalho de Melo | 401b8e1 | 2011-02-10 12:52:47 -0200 | [diff] [blame] | 333 | err = 0; |
| 334 | for (thread = 0; thread < threads->nr; ++thread) { |
| 335 | if (__event__synthesize_thread(comm_event, mmap_event, |
David Ahern | defd8d3 | 2011-12-22 11:30:01 -0700 | [diff] [blame] | 336 | threads->map[thread], 0, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 337 | process, tool, machine)) { |
Arnaldo Carvalho de Melo | 401b8e1 | 2011-02-10 12:52:47 -0200 | [diff] [blame] | 338 | err = -1; |
| 339 | break; |
| 340 | } |
David Ahern | defd8d3 | 2011-12-22 11:30:01 -0700 | [diff] [blame] | 341 | |
| 342 | /* |
| 343 | * comm.pid is set to thread group id by |
| 344 | * perf_event__synthesize_comm |
| 345 | */ |
| 346 | if ((int) comm_event->comm.pid != threads->map[thread]) { |
| 347 | bool need_leader = true; |
| 348 | |
| 349 | /* is thread group leader in thread_map? */ |
| 350 | for (j = 0; j < threads->nr; ++j) { |
| 351 | if ((int) comm_event->comm.pid == threads->map[j]) { |
| 352 | need_leader = false; |
| 353 | break; |
| 354 | } |
| 355 | } |
| 356 | |
| 357 | /* if not, generate events for it */ |
| 358 | if (need_leader && |
| 359 | __event__synthesize_thread(comm_event, |
| 360 | mmap_event, |
| 361 | comm_event->comm.pid, 0, |
| 362 | process, tool, machine)) { |
| 363 | err = -1; |
| 364 | break; |
| 365 | } |
| 366 | } |
Arnaldo Carvalho de Melo | 401b8e1 | 2011-02-10 12:52:47 -0200 | [diff] [blame] | 367 | } |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 368 | free(mmap_event); |
| 369 | out_free_comm: |
| 370 | free(comm_event); |
| 371 | out: |
| 372 | return err; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 373 | } |
| 374 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 375 | int perf_event__synthesize_threads(struct perf_tool *tool, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 376 | perf_event__handler_t process, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 377 | struct machine *machine) |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 378 | { |
| 379 | DIR *proc; |
| 380 | struct dirent dirent, *next; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 381 | union perf_event *comm_event, *mmap_event; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 382 | int err = -1; |
| 383 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 384 | 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] | 385 | if (comm_event == NULL) |
| 386 | goto out; |
| 387 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 388 | 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] | 389 | if (mmap_event == NULL) |
| 390 | goto out_free_comm; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 391 | |
| 392 | proc = opendir("/proc"); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 393 | if (proc == NULL) |
| 394 | goto out_free_mmap; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 395 | |
| 396 | while (!readdir_r(proc, &dirent, &next) && next) { |
| 397 | char *end; |
| 398 | pid_t pid = strtol(dirent.d_name, &end, 10); |
| 399 | |
| 400 | if (*end) /* only interested in proper numerical dirents */ |
| 401 | continue; |
Arnaldo Carvalho de Melo | ba361c9 | 2012-10-17 18:50:13 -0300 | [diff] [blame] | 402 | /* |
| 403 | * We may race with exiting thread, so don't stop just because |
| 404 | * one thread couldn't be synthesized. |
| 405 | */ |
| 406 | __event__synthesize_thread(comm_event, mmap_event, pid, 1, |
| 407 | process, tool, machine); |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 408 | } |
| 409 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 410 | err = 0; |
David Ahern | 1e6d532 | 2012-08-26 12:24:42 -0600 | [diff] [blame] | 411 | closedir(proc); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 412 | out_free_mmap: |
| 413 | free(mmap_event); |
| 414 | out_free_comm: |
| 415 | free(comm_event); |
| 416 | out: |
| 417 | return err; |
Arnaldo Carvalho de Melo | 234fbbf | 2009-10-26 19:23:18 -0200 | [diff] [blame] | 418 | } |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 419 | |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 420 | struct process_symbol_args { |
| 421 | const char *name; |
| 422 | u64 start; |
| 423 | }; |
| 424 | |
Arnaldo Carvalho de Melo | 3b01a41 | 2010-12-22 01:08:36 -0200 | [diff] [blame] | 425 | 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] | 426 | u64 start) |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 427 | { |
| 428 | struct process_symbol_args *args = arg; |
| 429 | |
Arnaldo Carvalho de Melo | 881516e | 2010-01-15 18:08:27 -0200 | [diff] [blame] | 430 | /* |
| 431 | * Must be a function or at least an alias, as in PARISC64, where "_text" is |
| 432 | * an 'A' to the same address as "_stext". |
| 433 | */ |
| 434 | if (!(symbol_type__is_a(type, MAP__FUNCTION) || |
| 435 | type == 'A') || strcmp(name, args->name)) |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 436 | return 0; |
| 437 | |
| 438 | args->start = start; |
| 439 | return 1; |
| 440 | } |
| 441 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 442 | int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 443 | perf_event__handler_t process, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 444 | struct machine *machine, |
| 445 | const char *symbol_name) |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 446 | { |
| 447 | size_t size; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 448 | const char *filename, *mmap_name; |
| 449 | char path[PATH_MAX]; |
| 450 | char name_buff[PATH_MAX]; |
| 451 | struct map *map; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 452 | int err; |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 453 | /* |
| 454 | * We should get this from /sys/kernel/sections/.text, but till that is |
| 455 | * available use this, and after it is use this as a fallback for older |
| 456 | * kernels. |
| 457 | */ |
| 458 | struct process_symbol_args args = { .name = symbol_name, }; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 459 | union perf_event *event = zalloc((sizeof(event->mmap) + |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 460 | machine->id_hdr_size)); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 461 | if (event == NULL) { |
| 462 | pr_debug("Not enough memory synthesizing mmap event " |
| 463 | "for kernel modules\n"); |
| 464 | return -1; |
| 465 | } |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 466 | |
Arnaldo Carvalho de Melo | 48ea8f5 | 2010-04-27 21:19:05 -0300 | [diff] [blame] | 467 | 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] | 468 | if (machine__is_host(machine)) { |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 469 | /* |
| 470 | * kernel uses PERF_RECORD_MISC_USER for user space maps, |
| 471 | * see kernel/perf_event.c __perf_event_mmap |
| 472 | */ |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 473 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 474 | filename = "/proc/kallsyms"; |
| 475 | } else { |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 476 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 477 | if (machine__is_default_guest(machine)) |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 478 | filename = (char *) symbol_conf.default_guest_kallsyms; |
| 479 | else { |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 480 | sprintf(path, "%s/proc/kallsyms", machine->root_dir); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 481 | filename = path; |
| 482 | } |
| 483 | } |
| 484 | |
Thomas Jarosch | 0b9e01a | 2013-01-25 11:20:47 +0100 | [diff] [blame] | 485 | if (kallsyms__parse(filename, &args, find_symbol_cb) <= 0) { |
| 486 | free(event); |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 487 | return -ENOENT; |
Thomas Jarosch | 0b9e01a | 2013-01-25 11:20:47 +0100 | [diff] [blame] | 488 | } |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 489 | |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 490 | map = machine->vmlinux_maps[MAP__FUNCTION]; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 491 | size = snprintf(event->mmap.filename, sizeof(event->mmap.filename), |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 492 | "%s%s", mmap_name, symbol_name) + 1; |
Irina Tirdea | 9ac3e48 | 2012-09-11 01:15:01 +0300 | [diff] [blame] | 493 | size = PERF_ALIGN(size, sizeof(u64)); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 494 | event->mmap.header.type = PERF_RECORD_MMAP; |
| 495 | event->mmap.header.size = (sizeof(event->mmap) - |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 496 | (sizeof(event->mmap.filename) - size) + machine->id_hdr_size); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 497 | event->mmap.pgoff = args.start; |
| 498 | event->mmap.start = map->start; |
| 499 | event->mmap.len = map->end - event->mmap.start; |
| 500 | event->mmap.pid = machine->pid; |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 501 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 502 | err = process(tool, event, &synth_sample, machine); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 503 | free(event); |
| 504 | |
| 505 | return err; |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 506 | } |
| 507 | |
Arnaldo Carvalho de Melo | 482ad89 | 2011-12-02 11:06:37 -0200 | [diff] [blame] | 508 | size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) |
| 509 | { |
| 510 | return fprintf(fp, ": %s:%d\n", event->comm.comm, event->comm.tid); |
| 511 | } |
| 512 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 513 | 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] | 514 | union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 515 | struct perf_sample *sample __maybe_unused, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 516 | struct machine *machine) |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 517 | { |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 518 | return machine__process_comm_event(machine, event); |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 519 | } |
| 520 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 521 | 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] | 522 | union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 523 | struct perf_sample *sample __maybe_unused, |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 524 | struct machine *machine) |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 525 | { |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 526 | return machine__process_lost_event(machine, event); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 527 | } |
| 528 | |
Arnaldo Carvalho de Melo | 482ad89 | 2011-12-02 11:06:37 -0200 | [diff] [blame] | 529 | size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) |
| 530 | { |
| 531 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %s\n", |
| 532 | event->mmap.pid, event->mmap.tid, event->mmap.start, |
| 533 | event->mmap.len, event->mmap.pgoff, event->mmap.filename); |
| 534 | } |
| 535 | |
Stephane Eranian | 5c5e854 | 2013-08-21 12:10:25 +0200 | [diff] [blame] | 536 | size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp) |
| 537 | { |
| 538 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 |
| 539 | " %02x:%02x %"PRIu64" %"PRIu64"]: %s\n", |
| 540 | event->mmap2.pid, event->mmap2.tid, event->mmap2.start, |
| 541 | event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj, |
| 542 | event->mmap2.min, event->mmap2.ino, |
| 543 | event->mmap2.ino_generation, |
| 544 | event->mmap2.filename); |
| 545 | } |
| 546 | |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 547 | 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] | 548 | union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 549 | struct perf_sample *sample __maybe_unused, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 550 | struct machine *machine) |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 551 | { |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 552 | return machine__process_mmap_event(machine, event); |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 553 | } |
| 554 | |
Stephane Eranian | 5c5e854 | 2013-08-21 12:10:25 +0200 | [diff] [blame] | 555 | int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused, |
| 556 | union perf_event *event, |
| 557 | struct perf_sample *sample __maybe_unused, |
| 558 | struct machine *machine) |
| 559 | { |
| 560 | return machine__process_mmap2_event(machine, event); |
| 561 | } |
| 562 | |
Arnaldo Carvalho de Melo | 482ad89 | 2011-12-02 11:06:37 -0200 | [diff] [blame] | 563 | size_t perf_event__fprintf_task(union perf_event *event, FILE *fp) |
| 564 | { |
| 565 | return fprintf(fp, "(%d:%d):(%d:%d)\n", |
| 566 | event->fork.pid, event->fork.tid, |
| 567 | event->fork.ppid, event->fork.ptid); |
| 568 | } |
| 569 | |
Arnaldo Carvalho de Melo | f62d3f0 | 2012-10-06 15:44:59 -0300 | [diff] [blame] | 570 | 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] | 571 | union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 572 | struct perf_sample *sample __maybe_unused, |
Arnaldo Carvalho de Melo | f62d3f0 | 2012-10-06 15:44:59 -0300 | [diff] [blame] | 573 | struct machine *machine) |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 574 | { |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 575 | return machine__process_fork_event(machine, event); |
Arnaldo Carvalho de Melo | 62daacb | 2009-11-27 16:29:22 -0200 | [diff] [blame] | 576 | } |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 577 | |
Arnaldo Carvalho de Melo | f62d3f0 | 2012-10-06 15:44:59 -0300 | [diff] [blame] | 578 | int perf_event__process_exit(struct perf_tool *tool __maybe_unused, |
| 579 | union perf_event *event, |
| 580 | struct perf_sample *sample __maybe_unused, |
| 581 | struct machine *machine) |
| 582 | { |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 583 | return machine__process_exit_event(machine, event); |
Arnaldo Carvalho de Melo | f62d3f0 | 2012-10-06 15:44:59 -0300 | [diff] [blame] | 584 | } |
| 585 | |
Arnaldo Carvalho de Melo | 482ad89 | 2011-12-02 11:06:37 -0200 | [diff] [blame] | 586 | size_t perf_event__fprintf(union perf_event *event, FILE *fp) |
| 587 | { |
| 588 | size_t ret = fprintf(fp, "PERF_RECORD_%s", |
| 589 | perf_event__name(event->header.type)); |
| 590 | |
| 591 | switch (event->header.type) { |
| 592 | case PERF_RECORD_COMM: |
| 593 | ret += perf_event__fprintf_comm(event, fp); |
| 594 | break; |
| 595 | case PERF_RECORD_FORK: |
| 596 | case PERF_RECORD_EXIT: |
| 597 | ret += perf_event__fprintf_task(event, fp); |
| 598 | break; |
| 599 | case PERF_RECORD_MMAP: |
| 600 | ret += perf_event__fprintf_mmap(event, fp); |
| 601 | break; |
Stephane Eranian | 5c5e854 | 2013-08-21 12:10:25 +0200 | [diff] [blame] | 602 | case PERF_RECORD_MMAP2: |
| 603 | ret += perf_event__fprintf_mmap2(event, fp); |
| 604 | break; |
Arnaldo Carvalho de Melo | 482ad89 | 2011-12-02 11:06:37 -0200 | [diff] [blame] | 605 | default: |
| 606 | ret += fprintf(fp, "\n"); |
| 607 | } |
| 608 | |
| 609 | return ret; |
| 610 | } |
| 611 | |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 612 | int perf_event__process(struct perf_tool *tool __maybe_unused, |
| 613 | union perf_event *event, |
| 614 | struct perf_sample *sample __maybe_unused, |
| 615 | struct machine *machine) |
Srikar Dronamraju | b83f920 | 2010-08-02 18:08:51 +0530 | [diff] [blame] | 616 | { |
Arnaldo Carvalho de Melo | b0a7d1a | 2012-10-06 16:26:02 -0300 | [diff] [blame] | 617 | return machine__process_event(machine, event); |
Srikar Dronamraju | b83f920 | 2010-08-02 18:08:51 +0530 | [diff] [blame] | 618 | } |
| 619 | |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 620 | void thread__find_addr_map(struct thread *self, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 621 | struct machine *machine, u8 cpumode, |
| 622 | enum map_type type, u64 addr, |
Adrian Hunter | 326f59b | 2013-08-08 14:32:27 +0300 | [diff] [blame] | 623 | struct addr_location *al) |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 624 | { |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 625 | struct map_groups *mg = &self->mg; |
Adrian Hunter | 5b7ba82 | 2013-08-07 14:38:46 +0300 | [diff] [blame] | 626 | bool load_map = false; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 627 | |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 628 | al->thread = self; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 629 | al->addr = addr; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 630 | al->cpumode = cpumode; |
| 631 | al->filtered = false; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 632 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 633 | if (machine == NULL) { |
| 634 | al->map = NULL; |
| 635 | return; |
| 636 | } |
| 637 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 638 | if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 639 | al->level = 'k'; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 640 | mg = &machine->kmaps; |
Adrian Hunter | 5b7ba82 | 2013-08-07 14:38:46 +0300 | [diff] [blame] | 641 | load_map = true; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 642 | } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 643 | al->level = '.'; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 644 | } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { |
| 645 | al->level = 'g'; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 646 | mg = &machine->kmaps; |
Adrian Hunter | 5b7ba82 | 2013-08-07 14:38:46 +0300 | [diff] [blame] | 647 | load_map = true; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 648 | } else { |
| 649 | /* |
| 650 | * 'u' means guest os user space. |
| 651 | * TODO: We don't support guest user space. Might support late. |
| 652 | */ |
| 653 | if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) |
| 654 | al->level = 'u'; |
| 655 | else |
| 656 | al->level = 'H'; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 657 | al->map = NULL; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 658 | |
| 659 | if ((cpumode == PERF_RECORD_MISC_GUEST_USER || |
| 660 | cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && |
| 661 | !perf_guest) |
| 662 | al->filtered = true; |
| 663 | if ((cpumode == PERF_RECORD_MISC_USER || |
| 664 | cpumode == PERF_RECORD_MISC_KERNEL) && |
| 665 | !perf_host) |
| 666 | al->filtered = true; |
| 667 | |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 668 | return; |
| 669 | } |
| 670 | try_again: |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 671 | al->map = map_groups__find(mg, type, al->addr); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 672 | if (al->map == NULL) { |
| 673 | /* |
| 674 | * If this is outside of all known maps, and is a negative |
| 675 | * address, try to look it up in the kernel dso, as it might be |
| 676 | * a vsyscall or vdso (which executes in user-mode). |
| 677 | * |
| 678 | * XXX This is nasty, we should have a symbol list in the |
| 679 | * "[vdso]" dso, but for now lets use the old trick of looking |
| 680 | * in the whole kernel symbol list. |
| 681 | */ |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 682 | if ((long long)al->addr < 0 && |
Andrew Lutomirski | 6c6804fb | 2011-03-24 00:36:56 -0400 | [diff] [blame] | 683 | cpumode == PERF_RECORD_MISC_USER && |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 684 | machine && mg != &machine->kmaps) { |
| 685 | mg = &machine->kmaps; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 686 | goto try_again; |
| 687 | } |
Adrian Hunter | 5b7ba82 | 2013-08-07 14:38:46 +0300 | [diff] [blame] | 688 | } else { |
| 689 | /* |
| 690 | * Kernel maps might be changed when loading symbols so loading |
| 691 | * must be done prior to using kernel maps. |
| 692 | */ |
| 693 | if (load_map) |
Adrian Hunter | 326f59b | 2013-08-08 14:32:27 +0300 | [diff] [blame] | 694 | map__load(al->map, machine->symbol_filter); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 695 | al->addr = al->map->map_ip(al->map, al->addr); |
Adrian Hunter | 5b7ba82 | 2013-08-07 14:38:46 +0300 | [diff] [blame] | 696 | } |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 697 | } |
| 698 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 699 | void thread__find_addr_location(struct thread *thread, struct machine *machine, |
| 700 | u8 cpumode, enum map_type type, u64 addr, |
Adrian Hunter | 61710bd | 2013-08-08 14:32:26 +0300 | [diff] [blame] | 701 | struct addr_location *al) |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 702 | { |
Adrian Hunter | 326f59b | 2013-08-08 14:32:27 +0300 | [diff] [blame] | 703 | thread__find_addr_map(thread, machine, cpumode, type, addr, al); |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 704 | if (al->map != NULL) |
Adrian Hunter | 61710bd | 2013-08-08 14:32:26 +0300 | [diff] [blame] | 705 | al->sym = map__find_symbol(al->map, al->addr, |
| 706 | machine->symbol_filter); |
Arnaldo Carvalho de Melo | 59ee68e | 2010-01-14 23:45:29 -0200 | [diff] [blame] | 707 | else |
| 708 | al->sym = NULL; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 709 | } |
| 710 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 711 | int perf_event__preprocess_sample(const union perf_event *event, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 712 | struct machine *machine, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 713 | struct addr_location *al, |
Adrian Hunter | e44baa3 | 2013-08-08 14:32:25 +0300 | [diff] [blame] | 714 | struct perf_sample *sample) |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 715 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 716 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
Adrian Hunter | ef89325 | 2013-08-27 11:23:06 +0300 | [diff] [blame] | 717 | struct thread *thread = machine__findnew_thread(machine, sample->pid, |
| 718 | sample->pid); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 719 | |
| 720 | if (thread == NULL) |
| 721 | return -1; |
| 722 | |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 723 | if (symbol_conf.comm_list && |
| 724 | !strlist__has_entry(symbol_conf.comm_list, thread->comm)) |
| 725 | goto out_filtered; |
| 726 | |
Adrian Hunter | 3805123 | 2013-07-04 16:20:31 +0300 | [diff] [blame] | 727 | dump_printf(" ... thread: %s:%d\n", thread->comm, thread->tid); |
Arnaldo Carvalho de Melo | 1f626bc | 2010-05-09 19:57:08 -0300 | [diff] [blame] | 728 | /* |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 729 | * Have we already created the kernel maps for this machine? |
Arnaldo Carvalho de Melo | 1f626bc | 2010-05-09 19:57:08 -0300 | [diff] [blame] | 730 | * |
| 731 | * This should have happened earlier, when we processed the kernel MMAP |
| 732 | * events, but for older perf.data files there was no such thing, so do |
| 733 | * it now. |
| 734 | */ |
| 735 | if (cpumode == PERF_RECORD_MISC_KERNEL && |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 736 | machine->vmlinux_maps[MAP__FUNCTION] == NULL) |
| 737 | machine__create_kernel_maps(machine); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 738 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 739 | thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, |
Adrian Hunter | ef89325 | 2013-08-27 11:23:06 +0300 | [diff] [blame] | 740 | sample->ip, al); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 741 | dump_printf(" ...... dso: %s\n", |
| 742 | al->map ? al->map->dso->long_name : |
| 743 | al->level == 'H' ? "[hypervisor]" : "<not found>"); |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 744 | al->sym = NULL; |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 745 | al->cpu = sample->cpu; |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 746 | |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 747 | if (al->map) { |
Namhyung Kim | cb8f4e9 | 2011-12-13 00:16:55 +0900 | [diff] [blame] | 748 | struct dso *dso = al->map->dso; |
| 749 | |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 750 | if (symbol_conf.dso_list && |
Namhyung Kim | cb8f4e9 | 2011-12-13 00:16:55 +0900 | [diff] [blame] | 751 | (!dso || !(strlist__has_entry(symbol_conf.dso_list, |
| 752 | dso->short_name) || |
| 753 | (dso->short_name != dso->long_name && |
| 754 | strlist__has_entry(symbol_conf.dso_list, |
| 755 | dso->long_name))))) |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 756 | goto out_filtered; |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 757 | |
Adrian Hunter | e44baa3 | 2013-08-08 14:32:25 +0300 | [diff] [blame] | 758 | al->sym = map__find_symbol(al->map, al->addr, |
| 759 | machine->symbol_filter); |
Arnaldo Carvalho de Melo | 96415e4 | 2010-03-24 16:40:15 -0300 | [diff] [blame] | 760 | } |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 761 | |
Feng Tang | 1500b93 | 2012-09-07 16:42:23 +0800 | [diff] [blame] | 762 | if (symbol_conf.sym_list && |
| 763 | (!al->sym || !strlist__has_entry(symbol_conf.sym_list, |
| 764 | al->sym->name))) |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 765 | goto out_filtered; |
| 766 | |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 767 | return 0; |
| 768 | |
| 769 | out_filtered: |
| 770 | al->filtered = true; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 771 | return 0; |
| 772 | } |