Xiao Guangrong | b8f46c5 | 2010-02-03 11:53:14 +0800 | [diff] [blame] | 1 | #define _FILE_OFFSET_BITS 64 |
| 2 | |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 3 | #include <linux/kernel.h> |
| 4 | |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 5 | #include <byteswap.h> |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 6 | #include <unistd.h> |
| 7 | #include <sys/types.h> |
Arnaldo Carvalho de Melo | a41794c | 2010-05-18 18:29:23 -0300 | [diff] [blame] | 8 | #include <sys/mman.h> |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 9 | |
Arnaldo Carvalho de Melo | e248de3 | 2011-03-05 21:40:06 -0300 | [diff] [blame] | 10 | #include "evlist.h" |
| 11 | #include "evsel.h" |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 12 | #include "session.h" |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 13 | #include "tool.h" |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 14 | #include "sort.h" |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 15 | #include "util.h" |
Anton Blanchard | 5d67be9 | 2011-07-04 21:57:50 +1000 | [diff] [blame] | 16 | #include "cpumap.h" |
Arnaldo Carvalho de Melo | da37896 | 2012-06-27 13:08:42 -0300 | [diff] [blame] | 17 | #include "event-parse.h" |
Jiri Olsa | 0f6a301 | 2012-08-07 15:20:45 +0200 | [diff] [blame] | 18 | #include "perf_regs.h" |
Jiri Olsa | 71ad0f5 | 2012-08-07 15:20:46 +0200 | [diff] [blame] | 19 | #include "unwind.h" |
Jiri Olsa | 7dbf4dc | 2012-09-10 18:50:19 +0200 | [diff] [blame] | 20 | #include "vdso.h" |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 21 | |
| 22 | static int perf_session__open(struct perf_session *self, bool force) |
| 23 | { |
| 24 | struct stat input_stat; |
| 25 | |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 26 | if (!strcmp(self->filename, "-")) { |
| 27 | self->fd_pipe = true; |
| 28 | self->fd = STDIN_FILENO; |
| 29 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 30 | if (perf_session__read_header(self, self->fd) < 0) |
Stephane Eranian | 69996df | 2012-02-09 23:21:06 +0100 | [diff] [blame] | 31 | pr_err("incompatible file format (rerun with -v to learn more)"); |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 32 | |
| 33 | return 0; |
| 34 | } |
| 35 | |
Xiao Guangrong | f887f30 | 2010-02-04 16:46:42 +0800 | [diff] [blame] | 36 | self->fd = open(self->filename, O_RDONLY); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 37 | if (self->fd < 0) { |
Andy Isaacson | 0f2c3de | 2010-06-11 20:36:15 -0700 | [diff] [blame] | 38 | int err = errno; |
| 39 | |
| 40 | pr_err("failed to open %s: %s", self->filename, strerror(err)); |
| 41 | if (err == ENOENT && !strcmp(self->filename, "perf.data")) |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 42 | pr_err(" (try 'perf record' first)"); |
| 43 | pr_err("\n"); |
| 44 | return -errno; |
| 45 | } |
| 46 | |
| 47 | if (fstat(self->fd, &input_stat) < 0) |
| 48 | goto out_close; |
| 49 | |
| 50 | if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) { |
| 51 | pr_err("file %s not owned by current user or root\n", |
| 52 | self->filename); |
| 53 | goto out_close; |
| 54 | } |
| 55 | |
| 56 | if (!input_stat.st_size) { |
| 57 | pr_info("zero-sized file (%s), nothing to do!\n", |
| 58 | self->filename); |
| 59 | goto out_close; |
| 60 | } |
| 61 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 62 | if (perf_session__read_header(self, self->fd) < 0) { |
Stephane Eranian | 69996df | 2012-02-09 23:21:06 +0100 | [diff] [blame] | 63 | pr_err("incompatible file format (rerun with -v to learn more)"); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 64 | goto out_close; |
| 65 | } |
| 66 | |
Arnaldo Carvalho de Melo | c2a7065 | 2011-06-02 11:04:54 -0300 | [diff] [blame] | 67 | if (!perf_evlist__valid_sample_type(self->evlist)) { |
| 68 | pr_err("non matching sample_type"); |
| 69 | goto out_close; |
| 70 | } |
| 71 | |
| 72 | if (!perf_evlist__valid_sample_id_all(self->evlist)) { |
| 73 | pr_err("non matching sample_id_all"); |
| 74 | goto out_close; |
| 75 | } |
| 76 | |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 77 | self->size = input_stat.st_size; |
| 78 | return 0; |
| 79 | |
| 80 | out_close: |
| 81 | close(self->fd); |
| 82 | self->fd = -1; |
| 83 | return -1; |
| 84 | } |
| 85 | |
Arnaldo Carvalho de Melo | 7b56cce | 2012-08-01 19:31:00 -0300 | [diff] [blame] | 86 | void perf_session__set_id_hdr_size(struct perf_session *session) |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 87 | { |
Arnaldo Carvalho de Melo | 7b56cce | 2012-08-01 19:31:00 -0300 | [diff] [blame] | 88 | u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist); |
| 89 | |
| 90 | session->host_machine.id_hdr_size = id_hdr_size; |
| 91 | machines__set_id_hdr_size(&session->machines, id_hdr_size); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 92 | } |
| 93 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 94 | int perf_session__create_kernel_maps(struct perf_session *self) |
| 95 | { |
Arnaldo Carvalho de Melo | d118f8b | 2010-05-10 12:51:05 -0300 | [diff] [blame] | 96 | int ret = machine__create_kernel_maps(&self->host_machine); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 97 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 98 | if (ret >= 0) |
Arnaldo Carvalho de Melo | d118f8b | 2010-05-10 12:51:05 -0300 | [diff] [blame] | 99 | ret = machines__create_guest_kernel_maps(&self->machines); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 100 | return ret; |
| 101 | } |
| 102 | |
Arnaldo Carvalho de Melo | 076c6e45 | 2010-08-02 18:18:28 -0300 | [diff] [blame] | 103 | static void perf_session__destroy_kernel_maps(struct perf_session *self) |
| 104 | { |
| 105 | machine__destroy_kernel_maps(&self->host_machine); |
| 106 | machines__destroy_guest_kernel_maps(&self->machines); |
| 107 | } |
| 108 | |
Ian Munsie | 21ef97f | 2010-12-10 14:09:16 +1100 | [diff] [blame] | 109 | struct perf_session *perf_session__new(const char *filename, int mode, |
| 110 | bool force, bool repipe, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 111 | struct perf_tool *tool) |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 112 | { |
Robert Richter | efad141 | 2011-12-07 10:02:54 +0100 | [diff] [blame] | 113 | struct perf_session *self; |
| 114 | struct stat st; |
| 115 | size_t len; |
| 116 | |
| 117 | if (!filename || !strlen(filename)) { |
| 118 | if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) |
| 119 | filename = "-"; |
| 120 | else |
| 121 | filename = "perf.data"; |
| 122 | } |
| 123 | |
| 124 | len = strlen(filename); |
| 125 | self = zalloc(sizeof(*self) + len); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 126 | |
| 127 | if (self == NULL) |
| 128 | goto out; |
| 129 | |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 130 | memcpy(self->filename, filename, len); |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 131 | /* |
| 132 | * On 64bit we can mmap the data file in one go. No need for tiny mmap |
| 133 | * slices. On 32bit we use 32MB. |
| 134 | */ |
| 135 | #if BITS_PER_LONG == 64 |
| 136 | self->mmap_window = ULLONG_MAX; |
| 137 | #else |
| 138 | self->mmap_window = 32 * 1024 * 1024ULL; |
| 139 | #endif |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 140 | self->machines = RB_ROOT; |
Tom Zanussi | 454c407 | 2010-05-01 01:41:20 -0500 | [diff] [blame] | 141 | self->repipe = repipe; |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 142 | INIT_LIST_HEAD(&self->ordered_samples.samples); |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 143 | INIT_LIST_HEAD(&self->ordered_samples.sample_cache); |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 144 | INIT_LIST_HEAD(&self->ordered_samples.to_free); |
Arnaldo Carvalho de Melo | 1f626bc | 2010-05-09 19:57:08 -0300 | [diff] [blame] | 145 | machine__init(&self->host_machine, "", HOST_KERNEL_ID); |
Jiri Olsa | 4bf9ce1 | 2012-03-22 14:37:26 +0100 | [diff] [blame] | 146 | hists__init(&self->hists); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 147 | |
Arnaldo Carvalho de Melo | 64abebf7 | 2010-01-27 21:05:52 -0200 | [diff] [blame] | 148 | if (mode == O_RDONLY) { |
| 149 | if (perf_session__open(self, force) < 0) |
| 150 | goto out_delete; |
Arnaldo Carvalho de Melo | 7b56cce | 2012-08-01 19:31:00 -0300 | [diff] [blame] | 151 | perf_session__set_id_hdr_size(self); |
Arnaldo Carvalho de Melo | 64abebf7 | 2010-01-27 21:05:52 -0200 | [diff] [blame] | 152 | } else if (mode == O_WRONLY) { |
| 153 | /* |
| 154 | * In O_RDONLY mode this will be performed when reading the |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 155 | * kernel MMAP event, in perf_event__process_mmap(). |
Arnaldo Carvalho de Melo | 64abebf7 | 2010-01-27 21:05:52 -0200 | [diff] [blame] | 156 | */ |
| 157 | if (perf_session__create_kernel_maps(self) < 0) |
| 158 | goto out_delete; |
| 159 | } |
Arnaldo Carvalho de Melo | d549c769 | 2009-12-27 21:37:02 -0200 | [diff] [blame] | 160 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 161 | if (tool && tool->ordering_requires_timestamps && |
Arnaldo Carvalho de Melo | 5e56247 | 2012-08-01 19:25:26 -0300 | [diff] [blame] | 162 | tool->ordered_samples && !perf_evlist__sample_id_all(self->evlist)) { |
Ian Munsie | 21ef97f | 2010-12-10 14:09:16 +1100 | [diff] [blame] | 163 | dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 164 | tool->ordered_samples = false; |
Ian Munsie | 21ef97f | 2010-12-10 14:09:16 +1100 | [diff] [blame] | 165 | } |
| 166 | |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 167 | out: |
| 168 | return self; |
Arnaldo Carvalho de Melo | 4aa6563 | 2009-12-13 19:50:29 -0200 | [diff] [blame] | 169 | out_delete: |
| 170 | perf_session__delete(self); |
| 171 | return NULL; |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 172 | } |
| 173 | |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 174 | static void machine__delete_dead_threads(struct machine *machine) |
Arnaldo Carvalho de Melo | d65a458 | 2010-07-30 18:31:28 -0300 | [diff] [blame] | 175 | { |
| 176 | struct thread *n, *t; |
| 177 | |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 178 | list_for_each_entry_safe(t, n, &machine->dead_threads, node) { |
Arnaldo Carvalho de Melo | d65a458 | 2010-07-30 18:31:28 -0300 | [diff] [blame] | 179 | list_del(&t->node); |
| 180 | thread__delete(t); |
| 181 | } |
| 182 | } |
| 183 | |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 184 | static void perf_session__delete_dead_threads(struct perf_session *session) |
| 185 | { |
| 186 | machine__delete_dead_threads(&session->host_machine); |
| 187 | } |
| 188 | |
| 189 | static void machine__delete_threads(struct machine *self) |
Arnaldo Carvalho de Melo | d65a458 | 2010-07-30 18:31:28 -0300 | [diff] [blame] | 190 | { |
| 191 | struct rb_node *nd = rb_first(&self->threads); |
| 192 | |
| 193 | while (nd) { |
| 194 | struct thread *t = rb_entry(nd, struct thread, rb_node); |
| 195 | |
| 196 | rb_erase(&t->rb_node, &self->threads); |
| 197 | nd = rb_next(nd); |
| 198 | thread__delete(t); |
| 199 | } |
| 200 | } |
| 201 | |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 202 | static void perf_session__delete_threads(struct perf_session *session) |
| 203 | { |
| 204 | machine__delete_threads(&session->host_machine); |
| 205 | } |
| 206 | |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 207 | void perf_session__delete(struct perf_session *self) |
| 208 | { |
Arnaldo Carvalho de Melo | 076c6e45 | 2010-08-02 18:18:28 -0300 | [diff] [blame] | 209 | perf_session__destroy_kernel_maps(self); |
Arnaldo Carvalho de Melo | d65a458 | 2010-07-30 18:31:28 -0300 | [diff] [blame] | 210 | perf_session__delete_dead_threads(self); |
| 211 | perf_session__delete_threads(self); |
| 212 | machine__exit(&self->host_machine); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 213 | close(self->fd); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 214 | free(self); |
Jiri Olsa | 7dbf4dc | 2012-09-10 18:50:19 +0200 | [diff] [blame] | 215 | vdso__exit(); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 216 | } |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 217 | |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 218 | void machine__remove_thread(struct machine *self, struct thread *th) |
Arnaldo Carvalho de Melo | 720a3ae | 2010-06-17 08:37:44 -0300 | [diff] [blame] | 219 | { |
Arnaldo Carvalho de Melo | 70597f2 | 2010-08-02 18:59:28 -0300 | [diff] [blame] | 220 | self->last_match = NULL; |
Arnaldo Carvalho de Melo | 720a3ae | 2010-06-17 08:37:44 -0300 | [diff] [blame] | 221 | rb_erase(&th->rb_node, &self->threads); |
| 222 | /* |
| 223 | * We may have references to this thread, for instance in some hist_entry |
| 224 | * instances, so just move them to a separate list. |
| 225 | */ |
| 226 | list_add_tail(&th->node, &self->dead_threads); |
| 227 | } |
| 228 | |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 229 | static bool symbol__match_parent_regex(struct symbol *sym) |
| 230 | { |
| 231 | if (sym->name && !regexec(&parent_regex, sym->name, 0, NULL, 0)) |
| 232 | return 1; |
| 233 | |
| 234 | return 0; |
| 235 | } |
| 236 | |
Roberto Agostino Vitillo | b538752 | 2012-02-09 23:21:01 +0100 | [diff] [blame] | 237 | static const u8 cpumodes[] = { |
| 238 | PERF_RECORD_MISC_USER, |
| 239 | PERF_RECORD_MISC_KERNEL, |
| 240 | PERF_RECORD_MISC_GUEST_USER, |
| 241 | PERF_RECORD_MISC_GUEST_KERNEL |
| 242 | }; |
| 243 | #define NCPUMODES (sizeof(cpumodes)/sizeof(u8)) |
| 244 | |
| 245 | static void ip__resolve_ams(struct machine *self, struct thread *thread, |
| 246 | struct addr_map_symbol *ams, |
| 247 | u64 ip) |
| 248 | { |
| 249 | struct addr_location al; |
| 250 | size_t i; |
| 251 | u8 m; |
| 252 | |
| 253 | memset(&al, 0, sizeof(al)); |
| 254 | |
| 255 | for (i = 0; i < NCPUMODES; i++) { |
| 256 | m = cpumodes[i]; |
| 257 | /* |
| 258 | * We cannot use the header.misc hint to determine whether a |
| 259 | * branch stack address is user, kernel, guest, hypervisor. |
| 260 | * Branches may straddle the kernel/user/hypervisor boundaries. |
| 261 | * Thus, we have to try consecutively until we find a match |
| 262 | * or else, the symbol is unknown |
| 263 | */ |
| 264 | thread__find_addr_location(thread, self, m, MAP__FUNCTION, |
| 265 | ip, &al, NULL); |
| 266 | if (al.sym) |
| 267 | goto found; |
| 268 | } |
| 269 | found: |
| 270 | ams->addr = ip; |
Stephane Eranian | a68c2c5 | 2012-03-08 23:47:48 +0100 | [diff] [blame] | 271 | ams->al_addr = al.addr; |
Roberto Agostino Vitillo | b538752 | 2012-02-09 23:21:01 +0100 | [diff] [blame] | 272 | ams->sym = al.sym; |
| 273 | ams->map = al.map; |
| 274 | } |
| 275 | |
| 276 | struct branch_info *machine__resolve_bstack(struct machine *self, |
| 277 | struct thread *thr, |
| 278 | struct branch_stack *bs) |
| 279 | { |
| 280 | struct branch_info *bi; |
| 281 | unsigned int i; |
| 282 | |
| 283 | bi = calloc(bs->nr, sizeof(struct branch_info)); |
| 284 | if (!bi) |
| 285 | return NULL; |
| 286 | |
| 287 | for (i = 0; i < bs->nr; i++) { |
| 288 | ip__resolve_ams(self, thr, &bi[i].to, bs->entries[i].to); |
| 289 | ip__resolve_ams(self, thr, &bi[i].from, bs->entries[i].from); |
| 290 | bi[i].flags = bs->entries[i].flags; |
| 291 | } |
| 292 | return bi; |
| 293 | } |
| 294 | |
Jiri Olsa | 71ad0f5 | 2012-08-07 15:20:46 +0200 | [diff] [blame] | 295 | static int machine__resolve_callchain_sample(struct machine *machine, |
| 296 | struct thread *thread, |
| 297 | struct ip_callchain *chain, |
| 298 | struct symbol **parent) |
| 299 | |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 300 | { |
| 301 | u8 cpumode = PERF_RECORD_MISC_USER; |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 302 | unsigned int i; |
Frederic Weisbecker | 1b3a0e9 | 2011-01-14 04:51:58 +0100 | [diff] [blame] | 303 | int err; |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 304 | |
Namhyung Kim | 4726064 | 2012-05-31 14:43:26 +0900 | [diff] [blame] | 305 | callchain_cursor_reset(&callchain_cursor); |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 306 | |
Namhyung Kim | 114067b | 2012-05-31 14:43:27 +0900 | [diff] [blame] | 307 | if (chain->nr > PERF_MAX_STACK_DEPTH) { |
| 308 | pr_warning("corrupted callchain. skipping...\n"); |
| 309 | return 0; |
| 310 | } |
| 311 | |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 312 | for (i = 0; i < chain->nr; i++) { |
Sam Liao | d797fdc | 2011-06-07 23:49:46 +0800 | [diff] [blame] | 313 | u64 ip; |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 314 | struct addr_location al; |
| 315 | |
Sam Liao | d797fdc | 2011-06-07 23:49:46 +0800 | [diff] [blame] | 316 | if (callchain_param.order == ORDER_CALLEE) |
| 317 | ip = chain->ips[i]; |
| 318 | else |
| 319 | ip = chain->ips[chain->nr - i - 1]; |
| 320 | |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 321 | if (ip >= PERF_CONTEXT_MAX) { |
| 322 | switch (ip) { |
| 323 | case PERF_CONTEXT_HV: |
Jiri Olsa | 71ad0f5 | 2012-08-07 15:20:46 +0200 | [diff] [blame] | 324 | cpumode = PERF_RECORD_MISC_HYPERVISOR; |
| 325 | break; |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 326 | case PERF_CONTEXT_KERNEL: |
Jiri Olsa | 71ad0f5 | 2012-08-07 15:20:46 +0200 | [diff] [blame] | 327 | cpumode = PERF_RECORD_MISC_KERNEL; |
| 328 | break; |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 329 | case PERF_CONTEXT_USER: |
Jiri Olsa | 71ad0f5 | 2012-08-07 15:20:46 +0200 | [diff] [blame] | 330 | cpumode = PERF_RECORD_MISC_USER; |
| 331 | break; |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 332 | default: |
Namhyung Kim | 114067b | 2012-05-31 14:43:27 +0900 | [diff] [blame] | 333 | pr_debug("invalid callchain context: " |
| 334 | "%"PRId64"\n", (s64) ip); |
| 335 | /* |
| 336 | * It seems the callchain is corrupted. |
| 337 | * Discard all. |
| 338 | */ |
| 339 | callchain_cursor_reset(&callchain_cursor); |
| 340 | return 0; |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 341 | } |
| 342 | continue; |
| 343 | } |
| 344 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 345 | al.filtered = false; |
Jiri Olsa | 71ad0f5 | 2012-08-07 15:20:46 +0200 | [diff] [blame] | 346 | thread__find_addr_location(thread, machine, cpumode, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 347 | MAP__FUNCTION, ip, &al, NULL); |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 348 | if (al.sym != NULL) { |
| 349 | if (sort__has_parent && !*parent && |
| 350 | symbol__match_parent_regex(al.sym)) |
| 351 | *parent = al.sym; |
Arnaldo Carvalho de Melo | d599db3 | 2009-12-15 20:04:42 -0200 | [diff] [blame] | 352 | if (!symbol_conf.use_callchain) |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 353 | break; |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 354 | } |
Frederic Weisbecker | 1b3a0e9 | 2011-01-14 04:51:58 +0100 | [diff] [blame] | 355 | |
Namhyung Kim | 4726064 | 2012-05-31 14:43:26 +0900 | [diff] [blame] | 356 | err = callchain_cursor_append(&callchain_cursor, |
Frederic Weisbecker | 1b3a0e9 | 2011-01-14 04:51:58 +0100 | [diff] [blame] | 357 | ip, al.map, al.sym); |
| 358 | if (err) |
| 359 | return err; |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 360 | } |
| 361 | |
Frederic Weisbecker | 1b3a0e9 | 2011-01-14 04:51:58 +0100 | [diff] [blame] | 362 | return 0; |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 363 | } |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 364 | |
Jiri Olsa | 71ad0f5 | 2012-08-07 15:20:46 +0200 | [diff] [blame] | 365 | static int unwind_entry(struct unwind_entry *entry, void *arg) |
| 366 | { |
| 367 | struct callchain_cursor *cursor = arg; |
| 368 | return callchain_cursor_append(cursor, entry->ip, |
| 369 | entry->map, entry->sym); |
| 370 | } |
| 371 | |
| 372 | int machine__resolve_callchain(struct machine *machine, |
| 373 | struct perf_evsel *evsel, |
| 374 | struct thread *thread, |
| 375 | struct perf_sample *sample, |
| 376 | struct symbol **parent) |
| 377 | |
| 378 | { |
| 379 | int ret; |
| 380 | |
| 381 | callchain_cursor_reset(&callchain_cursor); |
| 382 | |
| 383 | ret = machine__resolve_callchain_sample(machine, thread, |
| 384 | sample->callchain, parent); |
| 385 | if (ret) |
| 386 | return ret; |
| 387 | |
| 388 | /* Can we do dwarf post unwind? */ |
| 389 | if (!((evsel->attr.sample_type & PERF_SAMPLE_REGS_USER) && |
| 390 | (evsel->attr.sample_type & PERF_SAMPLE_STACK_USER))) |
| 391 | return 0; |
| 392 | |
Jiri Olsa | bdde371 | 2012-09-10 18:50:16 +0200 | [diff] [blame] | 393 | /* Bail out if nothing was captured. */ |
| 394 | if ((!sample->user_regs.regs) || |
| 395 | (!sample->user_stack.size)) |
| 396 | return 0; |
| 397 | |
Jiri Olsa | 71ad0f5 | 2012-08-07 15:20:46 +0200 | [diff] [blame] | 398 | return unwind__get_entries(unwind_entry, &callchain_cursor, machine, |
| 399 | thread, evsel->attr.sample_regs_user, |
| 400 | sample); |
| 401 | |
| 402 | } |
| 403 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame^] | 404 | static int process_event_synth_tracing_data_stub(union perf_event *event |
| 405 | __maybe_unused, |
| 406 | struct perf_session *session |
| 407 | __maybe_unused) |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 408 | { |
| 409 | dump_printf(": unhandled!\n"); |
| 410 | return 0; |
| 411 | } |
| 412 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame^] | 413 | static int process_event_synth_attr_stub(union perf_event *event __maybe_unused, |
| 414 | struct perf_evlist **pevlist |
| 415 | __maybe_unused) |
Arnaldo Carvalho de Melo | 10d0f08 | 2011-11-11 22:45:41 -0200 | [diff] [blame] | 416 | { |
| 417 | dump_printf(": unhandled!\n"); |
| 418 | return 0; |
| 419 | } |
| 420 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame^] | 421 | static int process_event_sample_stub(struct perf_tool *tool __maybe_unused, |
| 422 | union perf_event *event __maybe_unused, |
| 423 | struct perf_sample *sample __maybe_unused, |
| 424 | struct perf_evsel *evsel __maybe_unused, |
| 425 | struct machine *machine __maybe_unused) |
Arnaldo Carvalho de Melo | 9e69c21 | 2011-03-15 15:44:01 -0300 | [diff] [blame] | 426 | { |
| 427 | dump_printf(": unhandled!\n"); |
| 428 | return 0; |
| 429 | } |
| 430 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame^] | 431 | static int process_event_stub(struct perf_tool *tool __maybe_unused, |
| 432 | union perf_event *event __maybe_unused, |
| 433 | struct perf_sample *sample __maybe_unused, |
| 434 | struct machine *machine __maybe_unused) |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 435 | { |
| 436 | dump_printf(": unhandled!\n"); |
| 437 | return 0; |
| 438 | } |
| 439 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame^] | 440 | static int process_finished_round_stub(struct perf_tool *tool __maybe_unused, |
| 441 | union perf_event *event __maybe_unused, |
| 442 | struct perf_session *perf_session |
| 443 | __maybe_unused) |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 444 | { |
| 445 | dump_printf(": unhandled!\n"); |
| 446 | return 0; |
| 447 | } |
| 448 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame^] | 449 | static int process_event_type_stub(struct perf_tool *tool __maybe_unused, |
| 450 | union perf_event *event __maybe_unused) |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 451 | { |
| 452 | dump_printf(": unhandled!\n"); |
| 453 | return 0; |
| 454 | } |
| 455 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 456 | static int process_finished_round(struct perf_tool *tool, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 457 | union perf_event *event, |
| 458 | struct perf_session *session); |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 459 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 460 | static void perf_tool__fill_defaults(struct perf_tool *tool) |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 461 | { |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 462 | if (tool->sample == NULL) |
| 463 | tool->sample = process_event_sample_stub; |
| 464 | if (tool->mmap == NULL) |
| 465 | tool->mmap = process_event_stub; |
| 466 | if (tool->comm == NULL) |
| 467 | tool->comm = process_event_stub; |
| 468 | if (tool->fork == NULL) |
| 469 | tool->fork = process_event_stub; |
| 470 | if (tool->exit == NULL) |
| 471 | tool->exit = process_event_stub; |
| 472 | if (tool->lost == NULL) |
| 473 | tool->lost = perf_event__process_lost; |
| 474 | if (tool->read == NULL) |
| 475 | tool->read = process_event_sample_stub; |
| 476 | if (tool->throttle == NULL) |
| 477 | tool->throttle = process_event_stub; |
| 478 | if (tool->unthrottle == NULL) |
| 479 | tool->unthrottle = process_event_stub; |
| 480 | if (tool->attr == NULL) |
| 481 | tool->attr = process_event_synth_attr_stub; |
| 482 | if (tool->event_type == NULL) |
| 483 | tool->event_type = process_event_type_stub; |
| 484 | if (tool->tracing_data == NULL) |
| 485 | tool->tracing_data = process_event_synth_tracing_data_stub; |
| 486 | if (tool->build_id == NULL) |
| 487 | tool->build_id = process_finished_round_stub; |
| 488 | if (tool->finished_round == NULL) { |
| 489 | if (tool->ordered_samples) |
| 490 | tool->finished_round = process_finished_round; |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 491 | else |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 492 | tool->finished_round = process_finished_round_stub; |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 493 | } |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 494 | } |
David Ahern | 80c0120 | 2012-06-08 11:47:51 -0300 | [diff] [blame] | 495 | |
| 496 | void mem_bswap_32(void *src, int byte_size) |
| 497 | { |
| 498 | u32 *m = src; |
| 499 | while (byte_size > 0) { |
| 500 | *m = bswap_32(*m); |
| 501 | byte_size -= sizeof(u32); |
| 502 | ++m; |
| 503 | } |
| 504 | } |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 505 | |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 506 | void mem_bswap_64(void *src, int byte_size) |
| 507 | { |
| 508 | u64 *m = src; |
| 509 | |
| 510 | while (byte_size > 0) { |
| 511 | *m = bswap_64(*m); |
| 512 | byte_size -= sizeof(u64); |
| 513 | ++m; |
| 514 | } |
| 515 | } |
| 516 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 517 | static void swap_sample_id_all(union perf_event *event, void *data) |
| 518 | { |
| 519 | void *end = (void *) event + event->header.size; |
| 520 | int size = end - data; |
| 521 | |
| 522 | BUG_ON(size % sizeof(u64)); |
| 523 | mem_bswap_64(data, size); |
| 524 | } |
| 525 | |
| 526 | static void perf_event__all64_swap(union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame^] | 527 | bool sample_id_all __maybe_unused) |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 528 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 529 | struct perf_event_header *hdr = &event->header; |
| 530 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 531 | } |
| 532 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 533 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 534 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 535 | event->comm.pid = bswap_32(event->comm.pid); |
| 536 | event->comm.tid = bswap_32(event->comm.tid); |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 537 | |
| 538 | if (sample_id_all) { |
| 539 | void *data = &event->comm.comm; |
| 540 | |
Irina Tirdea | 9ac3e48 | 2012-09-11 01:15:01 +0300 | [diff] [blame] | 541 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 542 | swap_sample_id_all(event, data); |
| 543 | } |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 544 | } |
| 545 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 546 | static void perf_event__mmap_swap(union perf_event *event, |
| 547 | bool sample_id_all) |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 548 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 549 | event->mmap.pid = bswap_32(event->mmap.pid); |
| 550 | event->mmap.tid = bswap_32(event->mmap.tid); |
| 551 | event->mmap.start = bswap_64(event->mmap.start); |
| 552 | event->mmap.len = bswap_64(event->mmap.len); |
| 553 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 554 | |
| 555 | if (sample_id_all) { |
| 556 | void *data = &event->mmap.filename; |
| 557 | |
Irina Tirdea | 9ac3e48 | 2012-09-11 01:15:01 +0300 | [diff] [blame] | 558 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 559 | swap_sample_id_all(event, data); |
| 560 | } |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 561 | } |
| 562 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 563 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 564 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 565 | event->fork.pid = bswap_32(event->fork.pid); |
| 566 | event->fork.tid = bswap_32(event->fork.tid); |
| 567 | event->fork.ppid = bswap_32(event->fork.ppid); |
| 568 | event->fork.ptid = bswap_32(event->fork.ptid); |
| 569 | event->fork.time = bswap_64(event->fork.time); |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 570 | |
| 571 | if (sample_id_all) |
| 572 | swap_sample_id_all(event, &event->fork + 1); |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 573 | } |
| 574 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 575 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 576 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 577 | event->read.pid = bswap_32(event->read.pid); |
| 578 | event->read.tid = bswap_32(event->read.tid); |
| 579 | event->read.value = bswap_64(event->read.value); |
| 580 | event->read.time_enabled = bswap_64(event->read.time_enabled); |
| 581 | event->read.time_running = bswap_64(event->read.time_running); |
| 582 | event->read.id = bswap_64(event->read.id); |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 583 | |
| 584 | if (sample_id_all) |
| 585 | swap_sample_id_all(event, &event->read + 1); |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 586 | } |
| 587 | |
Jiri Olsa | e108c66 | 2012-05-16 08:59:03 +0200 | [diff] [blame] | 588 | static u8 revbyte(u8 b) |
| 589 | { |
| 590 | int rev = (b >> 4) | ((b & 0xf) << 4); |
| 591 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); |
| 592 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); |
| 593 | return (u8) rev; |
| 594 | } |
| 595 | |
| 596 | /* |
| 597 | * XXX this is hack in attempt to carry flags bitfield |
| 598 | * throught endian village. ABI says: |
| 599 | * |
| 600 | * Bit-fields are allocated from right to left (least to most significant) |
| 601 | * on little-endian implementations and from left to right (most to least |
| 602 | * significant) on big-endian implementations. |
| 603 | * |
| 604 | * The above seems to be byte specific, so we need to reverse each |
| 605 | * byte of the bitfield. 'Internet' also says this might be implementation |
| 606 | * specific and we probably need proper fix and carry perf_event_attr |
| 607 | * bitfield flags in separate data file FEAT_ section. Thought this seems |
| 608 | * to work for now. |
| 609 | */ |
| 610 | static void swap_bitfield(u8 *p, unsigned len) |
| 611 | { |
| 612 | unsigned i; |
| 613 | |
| 614 | for (i = 0; i < len; i++) { |
| 615 | *p = revbyte(*p); |
| 616 | p++; |
| 617 | } |
| 618 | } |
| 619 | |
David Ahern | eda3913 | 2011-07-15 12:34:09 -0600 | [diff] [blame] | 620 | /* exported for swapping attributes in file header */ |
| 621 | void perf_event__attr_swap(struct perf_event_attr *attr) |
| 622 | { |
| 623 | attr->type = bswap_32(attr->type); |
| 624 | attr->size = bswap_32(attr->size); |
| 625 | attr->config = bswap_64(attr->config); |
| 626 | attr->sample_period = bswap_64(attr->sample_period); |
| 627 | attr->sample_type = bswap_64(attr->sample_type); |
| 628 | attr->read_format = bswap_64(attr->read_format); |
| 629 | attr->wakeup_events = bswap_32(attr->wakeup_events); |
| 630 | attr->bp_type = bswap_32(attr->bp_type); |
| 631 | attr->bp_addr = bswap_64(attr->bp_addr); |
| 632 | attr->bp_len = bswap_64(attr->bp_len); |
Jiri Olsa | e108c66 | 2012-05-16 08:59:03 +0200 | [diff] [blame] | 633 | |
| 634 | swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64)); |
David Ahern | eda3913 | 2011-07-15 12:34:09 -0600 | [diff] [blame] | 635 | } |
| 636 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 637 | static void perf_event__hdr_attr_swap(union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame^] | 638 | bool sample_id_all __maybe_unused) |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 639 | { |
| 640 | size_t size; |
| 641 | |
David Ahern | eda3913 | 2011-07-15 12:34:09 -0600 | [diff] [blame] | 642 | perf_event__attr_swap(&event->attr.attr); |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 643 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 644 | size = event->header.size; |
| 645 | size -= (void *)&event->attr.id - (void *)event; |
| 646 | mem_bswap_64(event->attr.id, size); |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 647 | } |
| 648 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 649 | static void perf_event__event_type_swap(union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame^] | 650 | bool sample_id_all __maybe_unused) |
Tom Zanussi | cd19a03 | 2010-04-01 23:59:20 -0500 | [diff] [blame] | 651 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 652 | event->event_type.event_type.event_id = |
| 653 | bswap_64(event->event_type.event_type.event_id); |
Tom Zanussi | cd19a03 | 2010-04-01 23:59:20 -0500 | [diff] [blame] | 654 | } |
| 655 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 656 | static void perf_event__tracing_data_swap(union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame^] | 657 | bool sample_id_all __maybe_unused) |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 658 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 659 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 660 | } |
| 661 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 662 | typedef void (*perf_event__swap_op)(union perf_event *event, |
| 663 | bool sample_id_all); |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 664 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 665 | static perf_event__swap_op perf_event__swap_ops[] = { |
| 666 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, |
| 667 | [PERF_RECORD_COMM] = perf_event__comm_swap, |
| 668 | [PERF_RECORD_FORK] = perf_event__task_swap, |
| 669 | [PERF_RECORD_EXIT] = perf_event__task_swap, |
| 670 | [PERF_RECORD_LOST] = perf_event__all64_swap, |
| 671 | [PERF_RECORD_READ] = perf_event__read_swap, |
| 672 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, |
David Ahern | eda3913 | 2011-07-15 12:34:09 -0600 | [diff] [blame] | 673 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 674 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
| 675 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, |
| 676 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, |
| 677 | [PERF_RECORD_HEADER_MAX] = NULL, |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 678 | }; |
| 679 | |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 680 | struct sample_queue { |
| 681 | u64 timestamp; |
Thomas Gleixner | e4c2df1 | 2010-12-07 12:48:50 +0000 | [diff] [blame] | 682 | u64 file_offset; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 683 | union perf_event *event; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 684 | struct list_head list; |
| 685 | }; |
| 686 | |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 687 | static void perf_session_free_sample_buffers(struct perf_session *session) |
| 688 | { |
| 689 | struct ordered_samples *os = &session->ordered_samples; |
| 690 | |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 691 | while (!list_empty(&os->to_free)) { |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 692 | struct sample_queue *sq; |
| 693 | |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 694 | sq = list_entry(os->to_free.next, struct sample_queue, list); |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 695 | list_del(&sq->list); |
| 696 | free(sq); |
| 697 | } |
| 698 | } |
| 699 | |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 700 | static int perf_session_deliver_event(struct perf_session *session, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 701 | union perf_event *event, |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 702 | struct perf_sample *sample, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 703 | struct perf_tool *tool, |
Thomas Gleixner | f74725d | 2010-12-07 12:48:53 +0000 | [diff] [blame] | 704 | u64 file_offset); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 705 | |
David Ahern | d25380cd | 2012-08-26 12:24:41 -0600 | [diff] [blame] | 706 | static int flush_sample_queue(struct perf_session *s, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 707 | struct perf_tool *tool) |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 708 | { |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 709 | struct ordered_samples *os = &s->ordered_samples; |
| 710 | struct list_head *head = &os->samples; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 711 | struct sample_queue *tmp, *iter; |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 712 | struct perf_sample sample; |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 713 | u64 limit = os->next_flush; |
| 714 | u64 last_ts = os->last_sample ? os->last_sample->timestamp : 0ULL; |
Arnaldo Carvalho de Melo | 8866056 | 2011-10-29 12:41:45 -0200 | [diff] [blame] | 715 | unsigned idx = 0, progress_next = os->nr_samples / 16; |
Frederic Weisbecker | 5538bec | 2011-05-22 02:17:22 +0200 | [diff] [blame] | 716 | int ret; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 717 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 718 | if (!tool->ordered_samples || !limit) |
David Ahern | d25380cd | 2012-08-26 12:24:41 -0600 | [diff] [blame] | 719 | return 0; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 720 | |
| 721 | list_for_each_entry_safe(iter, tmp, head, list) { |
| 722 | if (iter->timestamp > limit) |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 723 | break; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 724 | |
Arnaldo Carvalho de Melo | cb0b29e | 2012-08-02 11:42:57 -0300 | [diff] [blame] | 725 | ret = perf_evlist__parse_sample(s->evlist, iter->event, &sample, |
| 726 | s->header.needs_swap); |
Frederic Weisbecker | 5538bec | 2011-05-22 02:17:22 +0200 | [diff] [blame] | 727 | if (ret) |
| 728 | pr_err("Can't parse sample, err = %d\n", ret); |
David Ahern | d25380cd | 2012-08-26 12:24:41 -0600 | [diff] [blame] | 729 | else { |
| 730 | ret = perf_session_deliver_event(s, iter->event, &sample, tool, |
| 731 | iter->file_offset); |
| 732 | if (ret) |
| 733 | return ret; |
| 734 | } |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 735 | |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 736 | os->last_flush = iter->timestamp; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 737 | list_del(&iter->list); |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 738 | list_add(&iter->list, &os->sample_cache); |
Arnaldo Carvalho de Melo | 8866056 | 2011-10-29 12:41:45 -0200 | [diff] [blame] | 739 | if (++idx >= progress_next) { |
| 740 | progress_next += os->nr_samples / 16; |
| 741 | ui_progress__update(idx, os->nr_samples, |
| 742 | "Processing time ordered events..."); |
| 743 | } |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 744 | } |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 745 | |
| 746 | if (list_empty(head)) { |
| 747 | os->last_sample = NULL; |
| 748 | } else if (last_ts <= limit) { |
| 749 | os->last_sample = |
| 750 | list_entry(head->prev, struct sample_queue, list); |
| 751 | } |
Arnaldo Carvalho de Melo | 8866056 | 2011-10-29 12:41:45 -0200 | [diff] [blame] | 752 | |
| 753 | os->nr_samples = 0; |
David Ahern | d25380cd | 2012-08-26 12:24:41 -0600 | [diff] [blame] | 754 | |
| 755 | return 0; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 756 | } |
| 757 | |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 758 | /* |
| 759 | * When perf record finishes a pass on every buffers, it records this pseudo |
| 760 | * event. |
| 761 | * We record the max timestamp t found in the pass n. |
| 762 | * Assuming these timestamps are monotonic across cpus, we know that if |
| 763 | * a buffer still has events with timestamps below t, they will be all |
| 764 | * available and then read in the pass n + 1. |
| 765 | * Hence when we start to read the pass n + 2, we can safely flush every |
| 766 | * events with timestamps below t. |
| 767 | * |
| 768 | * ============ PASS n ================= |
| 769 | * CPU 0 | CPU 1 |
| 770 | * | |
| 771 | * cnt1 timestamps | cnt2 timestamps |
| 772 | * 1 | 2 |
| 773 | * 2 | 3 |
| 774 | * - | 4 <--- max recorded |
| 775 | * |
| 776 | * ============ PASS n + 1 ============== |
| 777 | * CPU 0 | CPU 1 |
| 778 | * | |
| 779 | * cnt1 timestamps | cnt2 timestamps |
| 780 | * 3 | 5 |
| 781 | * 4 | 6 |
| 782 | * 5 | 7 <---- max recorded |
| 783 | * |
| 784 | * Flush every events below timestamp 4 |
| 785 | * |
| 786 | * ============ PASS n + 2 ============== |
| 787 | * CPU 0 | CPU 1 |
| 788 | * | |
| 789 | * cnt1 timestamps | cnt2 timestamps |
| 790 | * 6 | 8 |
| 791 | * 7 | 9 |
| 792 | * - | 10 |
| 793 | * |
| 794 | * Flush every events below timestamp 7 |
| 795 | * etc... |
| 796 | */ |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 797 | static int process_finished_round(struct perf_tool *tool, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame^] | 798 | union perf_event *event __maybe_unused, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 799 | struct perf_session *session) |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 800 | { |
David Ahern | d25380cd | 2012-08-26 12:24:41 -0600 | [diff] [blame] | 801 | int ret = flush_sample_queue(session, tool); |
| 802 | if (!ret) |
| 803 | session->ordered_samples.next_flush = session->ordered_samples.max_timestamp; |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 804 | |
David Ahern | d25380cd | 2012-08-26 12:24:41 -0600 | [diff] [blame] | 805 | return ret; |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 806 | } |
| 807 | |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 808 | /* The queue is ordered by time */ |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 809 | static void __queue_event(struct sample_queue *new, struct perf_session *s) |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 810 | { |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 811 | struct ordered_samples *os = &s->ordered_samples; |
| 812 | struct sample_queue *sample = os->last_sample; |
| 813 | u64 timestamp = new->timestamp; |
| 814 | struct list_head *p; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 815 | |
Arnaldo Carvalho de Melo | 8866056 | 2011-10-29 12:41:45 -0200 | [diff] [blame] | 816 | ++os->nr_samples; |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 817 | os->last_sample = new; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 818 | |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 819 | if (!sample) { |
| 820 | list_add(&new->list, &os->samples); |
| 821 | os->max_timestamp = timestamp; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 822 | return; |
| 823 | } |
| 824 | |
| 825 | /* |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 826 | * last_sample might point to some random place in the list as it's |
| 827 | * the last queued event. We expect that the new event is close to |
| 828 | * this. |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 829 | */ |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 830 | if (sample->timestamp <= timestamp) { |
| 831 | while (sample->timestamp <= timestamp) { |
| 832 | p = sample->list.next; |
| 833 | if (p == &os->samples) { |
| 834 | list_add_tail(&new->list, &os->samples); |
| 835 | os->max_timestamp = timestamp; |
| 836 | return; |
| 837 | } |
| 838 | sample = list_entry(p, struct sample_queue, list); |
| 839 | } |
| 840 | list_add_tail(&new->list, &sample->list); |
| 841 | } else { |
| 842 | while (sample->timestamp > timestamp) { |
| 843 | p = sample->list.prev; |
| 844 | if (p == &os->samples) { |
| 845 | list_add(&new->list, &os->samples); |
| 846 | return; |
| 847 | } |
| 848 | sample = list_entry(p, struct sample_queue, list); |
| 849 | } |
| 850 | list_add(&new->list, &sample->list); |
| 851 | } |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 852 | } |
| 853 | |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 854 | #define MAX_SAMPLE_BUFFER (64 * 1024 / sizeof(struct sample_queue)) |
| 855 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 856 | static int perf_session_queue_event(struct perf_session *s, union perf_event *event, |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 857 | struct perf_sample *sample, u64 file_offset) |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 858 | { |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 859 | struct ordered_samples *os = &s->ordered_samples; |
| 860 | struct list_head *sc = &os->sample_cache; |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 861 | u64 timestamp = sample->time; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 862 | struct sample_queue *new; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 863 | |
Thomas Gleixner | 79a14c1 | 2010-12-07 12:48:44 +0000 | [diff] [blame] | 864 | if (!timestamp || timestamp == ~0ULL) |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 865 | return -ETIME; |
| 866 | |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 867 | if (timestamp < s->ordered_samples.last_flush) { |
| 868 | printf("Warning: Timestamp below last timeslice flush\n"); |
| 869 | return -EINVAL; |
| 870 | } |
| 871 | |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 872 | if (!list_empty(sc)) { |
| 873 | new = list_entry(sc->next, struct sample_queue, list); |
| 874 | list_del(&new->list); |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 875 | } else if (os->sample_buffer) { |
| 876 | new = os->sample_buffer + os->sample_buffer_idx; |
| 877 | if (++os->sample_buffer_idx == MAX_SAMPLE_BUFFER) |
| 878 | os->sample_buffer = NULL; |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 879 | } else { |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 880 | os->sample_buffer = malloc(MAX_SAMPLE_BUFFER * sizeof(*new)); |
| 881 | if (!os->sample_buffer) |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 882 | return -ENOMEM; |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 883 | list_add(&os->sample_buffer->list, &os->to_free); |
| 884 | os->sample_buffer_idx = 2; |
| 885 | new = os->sample_buffer + 1; |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 886 | } |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 887 | |
| 888 | new->timestamp = timestamp; |
Thomas Gleixner | e4c2df1 | 2010-12-07 12:48:50 +0000 | [diff] [blame] | 889 | new->file_offset = file_offset; |
Thomas Gleixner | fe17420 | 2010-11-30 17:49:49 +0000 | [diff] [blame] | 890 | new->event = event; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 891 | |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 892 | __queue_event(new, s); |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 893 | |
| 894 | return 0; |
| 895 | } |
| 896 | |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 897 | static void callchain__printf(struct perf_sample *sample) |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 898 | { |
| 899 | unsigned int i; |
| 900 | |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 901 | printf("... chain: nr:%" PRIu64 "\n", sample->callchain->nr); |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 902 | |
| 903 | for (i = 0; i < sample->callchain->nr; i++) |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 904 | printf("..... %2d: %016" PRIx64 "\n", |
| 905 | i, sample->callchain->ips[i]); |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 906 | } |
| 907 | |
Roberto Agostino Vitillo | b538752 | 2012-02-09 23:21:01 +0100 | [diff] [blame] | 908 | static void branch_stack__printf(struct perf_sample *sample) |
| 909 | { |
| 910 | uint64_t i; |
| 911 | |
| 912 | printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); |
| 913 | |
| 914 | for (i = 0; i < sample->branch_stack->nr; i++) |
| 915 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n", |
| 916 | i, sample->branch_stack->entries[i].from, |
| 917 | sample->branch_stack->entries[i].to); |
| 918 | } |
| 919 | |
Jiri Olsa | 0f6a301 | 2012-08-07 15:20:45 +0200 | [diff] [blame] | 920 | static void regs_dump__printf(u64 mask, u64 *regs) |
| 921 | { |
| 922 | unsigned rid, i = 0; |
| 923 | |
| 924 | for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) { |
| 925 | u64 val = regs[i++]; |
| 926 | |
| 927 | printf(".... %-5s 0x%" PRIx64 "\n", |
| 928 | perf_reg_name(rid), val); |
| 929 | } |
| 930 | } |
| 931 | |
| 932 | static void regs_user__printf(struct perf_sample *sample, u64 mask) |
| 933 | { |
| 934 | struct regs_dump *user_regs = &sample->user_regs; |
| 935 | |
| 936 | if (user_regs->regs) { |
| 937 | printf("... user regs: mask 0x%" PRIx64 "\n", mask); |
| 938 | regs_dump__printf(mask, user_regs->regs); |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | static void stack_user__printf(struct stack_dump *dump) |
| 943 | { |
| 944 | printf("... ustack: size %" PRIu64 ", offset 0x%x\n", |
| 945 | dump->size, dump->offset); |
| 946 | } |
| 947 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 948 | static void perf_session__print_tstamp(struct perf_session *session, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 949 | union perf_event *event, |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 950 | struct perf_sample *sample) |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 951 | { |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 952 | u64 sample_type = perf_evlist__sample_type(session->evlist); |
| 953 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 954 | if (event->header.type != PERF_RECORD_SAMPLE && |
Arnaldo Carvalho de Melo | 5e56247 | 2012-08-01 19:25:26 -0300 | [diff] [blame] | 955 | !perf_evlist__sample_id_all(session->evlist)) { |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 956 | fputs("-1 -1 ", stdout); |
| 957 | return; |
| 958 | } |
| 959 | |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 960 | if ((sample_type & PERF_SAMPLE_CPU)) |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 961 | printf("%u ", sample->cpu); |
| 962 | |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 963 | if (sample_type & PERF_SAMPLE_TIME) |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 964 | printf("%" PRIu64 " ", sample->time); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 965 | } |
| 966 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 967 | static void dump_event(struct perf_session *session, union perf_event *event, |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 968 | u64 file_offset, struct perf_sample *sample) |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 969 | { |
| 970 | if (!dump_trace) |
| 971 | return; |
| 972 | |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 973 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
| 974 | file_offset, event->header.size, event->header.type); |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 975 | |
| 976 | trace_event(event); |
| 977 | |
| 978 | if (sample) |
| 979 | perf_session__print_tstamp(session, event, sample); |
| 980 | |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 981 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 982 | event->header.size, perf_event__name(event->header.type)); |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 983 | } |
| 984 | |
Jiri Olsa | 0f6a301 | 2012-08-07 15:20:45 +0200 | [diff] [blame] | 985 | static void dump_sample(struct perf_evsel *evsel, union perf_event *event, |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 986 | struct perf_sample *sample) |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 987 | { |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 988 | u64 sample_type; |
| 989 | |
Arnaldo Carvalho de Melo | ddbc24b | 2010-12-09 12:20:20 -0200 | [diff] [blame] | 990 | if (!dump_trace) |
| 991 | return; |
| 992 | |
David Ahern | 7cec092 | 2011-05-30 13:08:23 -0600 | [diff] [blame] | 993 | printf("(IP, %d): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 994 | event->header.misc, sample->pid, sample->tid, sample->ip, |
David Ahern | 7cec092 | 2011-05-30 13:08:23 -0600 | [diff] [blame] | 995 | sample->period, sample->addr); |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 996 | |
Jiri Olsa | 0f6a301 | 2012-08-07 15:20:45 +0200 | [diff] [blame] | 997 | sample_type = evsel->attr.sample_type; |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 998 | |
| 999 | if (sample_type & PERF_SAMPLE_CALLCHAIN) |
Arnaldo Carvalho de Melo | ddbc24b | 2010-12-09 12:20:20 -0200 | [diff] [blame] | 1000 | callchain__printf(sample); |
Roberto Agostino Vitillo | b538752 | 2012-02-09 23:21:01 +0100 | [diff] [blame] | 1001 | |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 1002 | if (sample_type & PERF_SAMPLE_BRANCH_STACK) |
Roberto Agostino Vitillo | b538752 | 2012-02-09 23:21:01 +0100 | [diff] [blame] | 1003 | branch_stack__printf(sample); |
Jiri Olsa | 0f6a301 | 2012-08-07 15:20:45 +0200 | [diff] [blame] | 1004 | |
| 1005 | if (sample_type & PERF_SAMPLE_REGS_USER) |
| 1006 | regs_user__printf(sample, evsel->attr.sample_regs_user); |
| 1007 | |
| 1008 | if (sample_type & PERF_SAMPLE_STACK_USER) |
| 1009 | stack_user__printf(&sample->user_stack); |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 1010 | } |
| 1011 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1012 | static struct machine * |
| 1013 | perf_session__find_machine_for_cpumode(struct perf_session *session, |
| 1014 | union perf_event *event) |
| 1015 | { |
| 1016 | const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
| 1017 | |
David Ahern | 7c0f4a4 | 2012-07-20 17:25:48 -0600 | [diff] [blame] | 1018 | if (perf_guest && |
| 1019 | ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || |
| 1020 | (cpumode == PERF_RECORD_MISC_GUEST_USER))) { |
Nikunj A. Dadhania | 7fb0a5e | 2012-04-09 13:52:23 +0530 | [diff] [blame] | 1021 | u32 pid; |
| 1022 | |
| 1023 | if (event->header.type == PERF_RECORD_MMAP) |
| 1024 | pid = event->mmap.pid; |
| 1025 | else |
| 1026 | pid = event->ip.pid; |
| 1027 | |
David Ahern | 207b579 | 2012-07-01 16:11:37 -0600 | [diff] [blame] | 1028 | return perf_session__findnew_machine(session, pid); |
Nikunj A. Dadhania | 7fb0a5e | 2012-04-09 13:52:23 +0530 | [diff] [blame] | 1029 | } |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1030 | |
| 1031 | return perf_session__find_host_machine(session); |
| 1032 | } |
| 1033 | |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1034 | static int perf_session_deliver_event(struct perf_session *session, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1035 | union perf_event *event, |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 1036 | struct perf_sample *sample, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1037 | struct perf_tool *tool, |
Thomas Gleixner | 532e726 | 2010-12-07 12:48:55 +0000 | [diff] [blame] | 1038 | u64 file_offset) |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1039 | { |
Arnaldo Carvalho de Melo | 9e69c21 | 2011-03-15 15:44:01 -0300 | [diff] [blame] | 1040 | struct perf_evsel *evsel; |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1041 | struct machine *machine; |
Arnaldo Carvalho de Melo | 9e69c21 | 2011-03-15 15:44:01 -0300 | [diff] [blame] | 1042 | |
Thomas Gleixner | 532e726 | 2010-12-07 12:48:55 +0000 | [diff] [blame] | 1043 | dump_event(session, event, file_offset, sample); |
| 1044 | |
Arnaldo Carvalho de Melo | 7b27509 | 2011-10-29 12:15:04 -0200 | [diff] [blame] | 1045 | evsel = perf_evlist__id2evsel(session->evlist, sample->id); |
| 1046 | if (evsel != NULL && event->header.type != PERF_RECORD_SAMPLE) { |
| 1047 | /* |
| 1048 | * XXX We're leaving PERF_RECORD_SAMPLE unnacounted here |
| 1049 | * because the tools right now may apply filters, discarding |
| 1050 | * some of the samples. For consistency, in the future we |
| 1051 | * should have something like nr_filtered_samples and remove |
| 1052 | * the sample->period from total_sample_period, etc, KISS for |
| 1053 | * now tho. |
| 1054 | * |
| 1055 | * Also testing against NULL allows us to handle files without |
| 1056 | * attr.sample_id_all and/or without PERF_SAMPLE_ID. In the |
| 1057 | * future probably it'll be a good idea to restrict event |
| 1058 | * processing via perf_session to files with both set. |
| 1059 | */ |
| 1060 | hists__inc_nr_events(&evsel->hists, event->header.type); |
| 1061 | } |
| 1062 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1063 | machine = perf_session__find_machine_for_cpumode(session, event); |
| 1064 | |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1065 | switch (event->header.type) { |
| 1066 | case PERF_RECORD_SAMPLE: |
Jiri Olsa | 0f6a301 | 2012-08-07 15:20:45 +0200 | [diff] [blame] | 1067 | dump_sample(evsel, event, sample); |
Arnaldo Carvalho de Melo | 9e69c21 | 2011-03-15 15:44:01 -0300 | [diff] [blame] | 1068 | if (evsel == NULL) { |
| 1069 | ++session->hists.stats.nr_unknown_id; |
Jiri Olsa | 6782206 | 2012-04-12 14:21:01 +0200 | [diff] [blame] | 1070 | return 0; |
Arnaldo Carvalho de Melo | 9e69c21 | 2011-03-15 15:44:01 -0300 | [diff] [blame] | 1071 | } |
Joerg Roedel | 0c09571 | 2012-02-10 18:05:04 +0100 | [diff] [blame] | 1072 | if (machine == NULL) { |
| 1073 | ++session->hists.stats.nr_unprocessable_samples; |
Jiri Olsa | 6782206 | 2012-04-12 14:21:01 +0200 | [diff] [blame] | 1074 | return 0; |
Joerg Roedel | 0c09571 | 2012-02-10 18:05:04 +0100 | [diff] [blame] | 1075 | } |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1076 | return tool->sample(tool, event, sample, evsel, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1077 | case PERF_RECORD_MMAP: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1078 | return tool->mmap(tool, event, sample, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1079 | case PERF_RECORD_COMM: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1080 | return tool->comm(tool, event, sample, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1081 | case PERF_RECORD_FORK: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1082 | return tool->fork(tool, event, sample, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1083 | case PERF_RECORD_EXIT: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1084 | return tool->exit(tool, event, sample, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1085 | case PERF_RECORD_LOST: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1086 | if (tool->lost == perf_event__process_lost) |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1087 | session->hists.stats.total_lost += event->lost.lost; |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1088 | return tool->lost(tool, event, sample, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1089 | case PERF_RECORD_READ: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1090 | return tool->read(tool, event, sample, evsel, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1091 | case PERF_RECORD_THROTTLE: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1092 | return tool->throttle(tool, event, sample, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1093 | case PERF_RECORD_UNTHROTTLE: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1094 | return tool->unthrottle(tool, event, sample, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1095 | default: |
| 1096 | ++session->hists.stats.nr_unknown_events; |
| 1097 | return -1; |
| 1098 | } |
| 1099 | } |
| 1100 | |
Thomas Gleixner | 3dfc2c0 | 2010-12-07 12:48:58 +0000 | [diff] [blame] | 1101 | static int perf_session__preprocess_sample(struct perf_session *session, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1102 | union perf_event *event, struct perf_sample *sample) |
Thomas Gleixner | 3dfc2c0 | 2010-12-07 12:48:58 +0000 | [diff] [blame] | 1103 | { |
| 1104 | if (event->header.type != PERF_RECORD_SAMPLE || |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 1105 | !(perf_evlist__sample_type(session->evlist) & PERF_SAMPLE_CALLCHAIN)) |
Thomas Gleixner | 3dfc2c0 | 2010-12-07 12:48:58 +0000 | [diff] [blame] | 1106 | return 0; |
| 1107 | |
| 1108 | if (!ip_callchain__valid(sample->callchain, event)) { |
| 1109 | pr_debug("call-chain problem with event, skipping it.\n"); |
| 1110 | ++session->hists.stats.nr_invalid_chains; |
| 1111 | session->hists.stats.total_invalid_chains += sample->period; |
| 1112 | return -EINVAL; |
| 1113 | } |
| 1114 | return 0; |
| 1115 | } |
| 1116 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1117 | static int perf_session__process_user_event(struct perf_session *session, union perf_event *event, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1118 | struct perf_tool *tool, u64 file_offset) |
Thomas Gleixner | ba74f06 | 2010-12-07 12:49:01 +0000 | [diff] [blame] | 1119 | { |
Arnaldo Carvalho de Melo | 10d0f08 | 2011-11-11 22:45:41 -0200 | [diff] [blame] | 1120 | int err; |
| 1121 | |
Thomas Gleixner | ba74f06 | 2010-12-07 12:49:01 +0000 | [diff] [blame] | 1122 | dump_event(session, event, file_offset, NULL); |
| 1123 | |
| 1124 | /* These events are processed right away */ |
| 1125 | switch (event->header.type) { |
| 1126 | case PERF_RECORD_HEADER_ATTR: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1127 | err = tool->attr(event, &session->evlist); |
Arnaldo Carvalho de Melo | 10d0f08 | 2011-11-11 22:45:41 -0200 | [diff] [blame] | 1128 | if (err == 0) |
Arnaldo Carvalho de Melo | 7b56cce | 2012-08-01 19:31:00 -0300 | [diff] [blame] | 1129 | perf_session__set_id_hdr_size(session); |
Arnaldo Carvalho de Melo | 10d0f08 | 2011-11-11 22:45:41 -0200 | [diff] [blame] | 1130 | return err; |
Thomas Gleixner | ba74f06 | 2010-12-07 12:49:01 +0000 | [diff] [blame] | 1131 | case PERF_RECORD_HEADER_EVENT_TYPE: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1132 | return tool->event_type(tool, event); |
Thomas Gleixner | ba74f06 | 2010-12-07 12:49:01 +0000 | [diff] [blame] | 1133 | case PERF_RECORD_HEADER_TRACING_DATA: |
| 1134 | /* setup for reading amidst mmap */ |
| 1135 | lseek(session->fd, file_offset, SEEK_SET); |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1136 | return tool->tracing_data(event, session); |
Thomas Gleixner | ba74f06 | 2010-12-07 12:49:01 +0000 | [diff] [blame] | 1137 | case PERF_RECORD_HEADER_BUILD_ID: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1138 | return tool->build_id(tool, event, session); |
Thomas Gleixner | ba74f06 | 2010-12-07 12:49:01 +0000 | [diff] [blame] | 1139 | case PERF_RECORD_FINISHED_ROUND: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1140 | return tool->finished_round(tool, event, session); |
Thomas Gleixner | ba74f06 | 2010-12-07 12:49:01 +0000 | [diff] [blame] | 1141 | default: |
| 1142 | return -EINVAL; |
| 1143 | } |
| 1144 | } |
| 1145 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 1146 | static void event_swap(union perf_event *event, bool sample_id_all) |
| 1147 | { |
| 1148 | perf_event__swap_op swap; |
| 1149 | |
| 1150 | swap = perf_event__swap_ops[event->header.type]; |
| 1151 | if (swap) |
| 1152 | swap(event, sample_id_all); |
| 1153 | } |
| 1154 | |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1155 | static int perf_session__process_event(struct perf_session *session, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1156 | union perf_event *event, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1157 | struct perf_tool *tool, |
Thomas Gleixner | 0331ee0 | 2010-11-30 17:49:38 +0000 | [diff] [blame] | 1158 | u64 file_offset) |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1159 | { |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 1160 | struct perf_sample sample; |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1161 | int ret; |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 1162 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 1163 | if (session->header.needs_swap) |
Arnaldo Carvalho de Melo | 5e56247 | 2012-08-01 19:25:26 -0300 | [diff] [blame] | 1164 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 1165 | |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 1166 | if (event->header.type >= PERF_RECORD_HEADER_MAX) |
| 1167 | return -EINVAL; |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 1168 | |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 1169 | hists__inc_nr_events(&session->hists, event->header.type); |
| 1170 | |
| 1171 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1172 | return perf_session__process_user_event(session, event, tool, file_offset); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1173 | |
Thomas Gleixner | 3dfc2c0 | 2010-12-07 12:48:58 +0000 | [diff] [blame] | 1174 | /* |
| 1175 | * For all kernel events we get the sample data |
| 1176 | */ |
Arnaldo Carvalho de Melo | cb0b29e | 2012-08-02 11:42:57 -0300 | [diff] [blame] | 1177 | ret = perf_evlist__parse_sample(session->evlist, event, &sample, |
| 1178 | session->header.needs_swap); |
Frederic Weisbecker | 5538bec | 2011-05-22 02:17:22 +0200 | [diff] [blame] | 1179 | if (ret) |
| 1180 | return ret; |
Thomas Gleixner | 3dfc2c0 | 2010-12-07 12:48:58 +0000 | [diff] [blame] | 1181 | |
| 1182 | /* Preprocess sample records - precheck callchains */ |
| 1183 | if (perf_session__preprocess_sample(session, event, &sample)) |
| 1184 | return 0; |
| 1185 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1186 | if (tool->ordered_samples) { |
Thomas Gleixner | e4c2df1 | 2010-12-07 12:48:50 +0000 | [diff] [blame] | 1187 | ret = perf_session_queue_event(session, event, &sample, |
| 1188 | file_offset); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1189 | if (ret != -ETIME) |
| 1190 | return ret; |
| 1191 | } |
| 1192 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1193 | return perf_session_deliver_event(session, event, &sample, tool, |
Thomas Gleixner | f74725d | 2010-12-07 12:48:53 +0000 | [diff] [blame] | 1194 | file_offset); |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1195 | } |
| 1196 | |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 1197 | void perf_event_header__bswap(struct perf_event_header *self) |
| 1198 | { |
| 1199 | self->type = bswap_32(self->type); |
| 1200 | self->misc = bswap_16(self->misc); |
| 1201 | self->size = bswap_16(self->size); |
| 1202 | } |
| 1203 | |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 1204 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
| 1205 | { |
| 1206 | return machine__findnew_thread(&session->host_machine, pid); |
| 1207 | } |
| 1208 | |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1209 | static struct thread *perf_session__register_idle_thread(struct perf_session *self) |
| 1210 | { |
| 1211 | struct thread *thread = perf_session__findnew(self, 0); |
| 1212 | |
| 1213 | if (thread == NULL || thread__set_comm(thread, "swapper")) { |
| 1214 | pr_err("problem inserting idle task.\n"); |
| 1215 | thread = NULL; |
| 1216 | } |
| 1217 | |
| 1218 | return thread; |
| 1219 | } |
| 1220 | |
Arnaldo Carvalho de Melo | 1109599 | 2011-01-04 16:25:15 -0200 | [diff] [blame] | 1221 | static void perf_session__warn_about_errors(const struct perf_session *session, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1222 | const struct perf_tool *tool) |
Arnaldo Carvalho de Melo | 1109599 | 2011-01-04 16:25:15 -0200 | [diff] [blame] | 1223 | { |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1224 | if (tool->lost == perf_event__process_lost && |
Arnaldo Carvalho de Melo | 7b27509 | 2011-10-29 12:15:04 -0200 | [diff] [blame] | 1225 | session->hists.stats.nr_events[PERF_RECORD_LOST] != 0) { |
| 1226 | ui__warning("Processed %d events and lost %d chunks!\n\n" |
| 1227 | "Check IO/CPU overload!\n\n", |
| 1228 | session->hists.stats.nr_events[0], |
| 1229 | session->hists.stats.nr_events[PERF_RECORD_LOST]); |
Arnaldo Carvalho de Melo | 1109599 | 2011-01-04 16:25:15 -0200 | [diff] [blame] | 1230 | } |
| 1231 | |
| 1232 | if (session->hists.stats.nr_unknown_events != 0) { |
| 1233 | ui__warning("Found %u unknown events!\n\n" |
| 1234 | "Is this an older tool processing a perf.data " |
| 1235 | "file generated by a more recent tool?\n\n" |
| 1236 | "If that is not the case, consider " |
| 1237 | "reporting to linux-kernel@vger.kernel.org.\n\n", |
| 1238 | session->hists.stats.nr_unknown_events); |
| 1239 | } |
| 1240 | |
Arnaldo Carvalho de Melo | 9e69c21 | 2011-03-15 15:44:01 -0300 | [diff] [blame] | 1241 | if (session->hists.stats.nr_unknown_id != 0) { |
| 1242 | ui__warning("%u samples with id not present in the header\n", |
| 1243 | session->hists.stats.nr_unknown_id); |
| 1244 | } |
| 1245 | |
Arnaldo Carvalho de Melo | 1109599 | 2011-01-04 16:25:15 -0200 | [diff] [blame] | 1246 | if (session->hists.stats.nr_invalid_chains != 0) { |
| 1247 | ui__warning("Found invalid callchains!\n\n" |
| 1248 | "%u out of %u events were discarded for this reason.\n\n" |
| 1249 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", |
| 1250 | session->hists.stats.nr_invalid_chains, |
| 1251 | session->hists.stats.nr_events[PERF_RECORD_SAMPLE]); |
| 1252 | } |
Joerg Roedel | 0c09571 | 2012-02-10 18:05:04 +0100 | [diff] [blame] | 1253 | |
| 1254 | if (session->hists.stats.nr_unprocessable_samples != 0) { |
| 1255 | ui__warning("%u unprocessable samples recorded.\n" |
| 1256 | "Do you have a KVM guest running and not using 'perf kvm'?\n", |
| 1257 | session->hists.stats.nr_unprocessable_samples); |
| 1258 | } |
Arnaldo Carvalho de Melo | 1109599 | 2011-01-04 16:25:15 -0200 | [diff] [blame] | 1259 | } |
| 1260 | |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1261 | #define session_done() (*(volatile int *)(&session_done)) |
| 1262 | volatile int session_done; |
| 1263 | |
| 1264 | static int __perf_session__process_pipe_events(struct perf_session *self, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1265 | struct perf_tool *tool) |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1266 | { |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1267 | union perf_event *event; |
| 1268 | uint32_t size, cur_size = 0; |
| 1269 | void *buf = NULL; |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1270 | int skip = 0; |
| 1271 | u64 head; |
| 1272 | int err; |
| 1273 | void *p; |
| 1274 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1275 | perf_tool__fill_defaults(tool); |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1276 | |
| 1277 | head = 0; |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1278 | cur_size = sizeof(union perf_event); |
| 1279 | |
| 1280 | buf = malloc(cur_size); |
| 1281 | if (!buf) |
| 1282 | return -errno; |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1283 | more: |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1284 | event = buf; |
| 1285 | err = readn(self->fd, event, sizeof(struct perf_event_header)); |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1286 | if (err <= 0) { |
| 1287 | if (err == 0) |
| 1288 | goto done; |
| 1289 | |
| 1290 | pr_err("failed to read event header\n"); |
| 1291 | goto out_err; |
| 1292 | } |
| 1293 | |
| 1294 | if (self->header.needs_swap) |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1295 | perf_event_header__bswap(&event->header); |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1296 | |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1297 | size = event->header.size; |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1298 | if (size == 0) |
| 1299 | size = 8; |
| 1300 | |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1301 | if (size > cur_size) { |
| 1302 | void *new = realloc(buf, size); |
| 1303 | if (!new) { |
| 1304 | pr_err("failed to allocate memory to read event\n"); |
| 1305 | goto out_err; |
| 1306 | } |
| 1307 | buf = new; |
| 1308 | cur_size = size; |
| 1309 | event = buf; |
| 1310 | } |
| 1311 | p = event; |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1312 | p += sizeof(struct perf_event_header); |
| 1313 | |
Tom Zanussi | 794e43b | 2010-05-05 00:27:40 -0500 | [diff] [blame] | 1314 | if (size - sizeof(struct perf_event_header)) { |
Arnaldo Carvalho de Melo | 1e7972c | 2011-01-03 16:50:55 -0200 | [diff] [blame] | 1315 | err = readn(self->fd, p, size - sizeof(struct perf_event_header)); |
Tom Zanussi | 794e43b | 2010-05-05 00:27:40 -0500 | [diff] [blame] | 1316 | if (err <= 0) { |
| 1317 | if (err == 0) { |
| 1318 | pr_err("unexpected end of event stream\n"); |
| 1319 | goto done; |
| 1320 | } |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1321 | |
Tom Zanussi | 794e43b | 2010-05-05 00:27:40 -0500 | [diff] [blame] | 1322 | pr_err("failed to read event data\n"); |
| 1323 | goto out_err; |
| 1324 | } |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1325 | } |
| 1326 | |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1327 | if ((skip = perf_session__process_event(self, event, tool, head)) < 0) { |
Jiri Olsa | 9389a46 | 2012-04-16 20:42:51 +0200 | [diff] [blame] | 1328 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1329 | head, event->header.size, event->header.type); |
Jiri Olsa | 9389a46 | 2012-04-16 20:42:51 +0200 | [diff] [blame] | 1330 | err = -EINVAL; |
| 1331 | goto out_err; |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1332 | } |
| 1333 | |
| 1334 | head += size; |
| 1335 | |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1336 | if (skip > 0) |
| 1337 | head += skip; |
| 1338 | |
| 1339 | if (!session_done()) |
| 1340 | goto more; |
| 1341 | done: |
| 1342 | err = 0; |
| 1343 | out_err: |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1344 | free(buf); |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1345 | perf_session__warn_about_errors(self, tool); |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 1346 | perf_session_free_sample_buffers(self); |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1347 | return err; |
| 1348 | } |
| 1349 | |
Frederic Weisbecker | 998bedc | 2011-05-23 13:06:28 +0200 | [diff] [blame] | 1350 | static union perf_event * |
| 1351 | fetch_mmaped_event(struct perf_session *session, |
| 1352 | u64 head, size_t mmap_size, char *buf) |
| 1353 | { |
| 1354 | union perf_event *event; |
| 1355 | |
| 1356 | /* |
| 1357 | * Ensure we have enough space remaining to read |
| 1358 | * the size of the event in the headers. |
| 1359 | */ |
| 1360 | if (head + sizeof(event->header) > mmap_size) |
| 1361 | return NULL; |
| 1362 | |
| 1363 | event = (union perf_event *)(buf + head); |
| 1364 | |
| 1365 | if (session->header.needs_swap) |
| 1366 | perf_event_header__bswap(&event->header); |
| 1367 | |
| 1368 | if (head + event->header.size > mmap_size) |
| 1369 | return NULL; |
| 1370 | |
| 1371 | return event; |
| 1372 | } |
| 1373 | |
Thomas Gleixner | 0331ee0 | 2010-11-30 17:49:38 +0000 | [diff] [blame] | 1374 | int __perf_session__process_events(struct perf_session *session, |
Arnaldo Carvalho de Melo | 6122e4e | 2010-02-03 16:52:05 -0200 | [diff] [blame] | 1375 | u64 data_offset, u64 data_size, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1376 | u64 file_size, struct perf_tool *tool) |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1377 | { |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 1378 | u64 head, page_offset, file_offset, file_pos, progress_next; |
Thomas Gleixner | fe17420 | 2010-11-30 17:49:49 +0000 | [diff] [blame] | 1379 | int err, mmap_prot, mmap_flags, map_idx = 0; |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 1380 | size_t page_size, mmap_size; |
Thomas Gleixner | fe17420 | 2010-11-30 17:49:49 +0000 | [diff] [blame] | 1381 | char *buf, *mmaps[8]; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1382 | union perf_event *event; |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1383 | uint32_t size; |
Thomas Gleixner | 0331ee0 | 2010-11-30 17:49:38 +0000 | [diff] [blame] | 1384 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1385 | perf_tool__fill_defaults(tool); |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1386 | |
Arnaldo Carvalho de Melo | 1b75962 | 2010-01-14 18:30:04 -0200 | [diff] [blame] | 1387 | page_size = sysconf(_SC_PAGESIZE); |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1388 | |
Thomas Gleixner | 0331ee0 | 2010-11-30 17:49:38 +0000 | [diff] [blame] | 1389 | page_offset = page_size * (data_offset / page_size); |
| 1390 | file_offset = page_offset; |
| 1391 | head = data_offset - page_offset; |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1392 | |
Thomas Gleixner | d651328 | 2010-11-30 17:49:44 +0000 | [diff] [blame] | 1393 | if (data_offset + data_size < file_size) |
| 1394 | file_size = data_offset + data_size; |
| 1395 | |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 1396 | progress_next = file_size / 16; |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 1397 | |
| 1398 | mmap_size = session->mmap_window; |
| 1399 | if (mmap_size > file_size) |
| 1400 | mmap_size = file_size; |
| 1401 | |
Thomas Gleixner | fe17420 | 2010-11-30 17:49:49 +0000 | [diff] [blame] | 1402 | memset(mmaps, 0, sizeof(mmaps)); |
| 1403 | |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 1404 | mmap_prot = PROT_READ; |
| 1405 | mmap_flags = MAP_SHARED; |
| 1406 | |
Thomas Gleixner | 0331ee0 | 2010-11-30 17:49:38 +0000 | [diff] [blame] | 1407 | if (session->header.needs_swap) { |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 1408 | mmap_prot |= PROT_WRITE; |
| 1409 | mmap_flags = MAP_PRIVATE; |
| 1410 | } |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1411 | remap: |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 1412 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, session->fd, |
| 1413 | file_offset); |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1414 | if (buf == MAP_FAILED) { |
| 1415 | pr_err("failed to mmap file\n"); |
| 1416 | err = -errno; |
| 1417 | goto out_err; |
| 1418 | } |
Thomas Gleixner | fe17420 | 2010-11-30 17:49:49 +0000 | [diff] [blame] | 1419 | mmaps[map_idx] = buf; |
| 1420 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); |
Thomas Gleixner | d651328 | 2010-11-30 17:49:44 +0000 | [diff] [blame] | 1421 | file_pos = file_offset + head; |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1422 | |
| 1423 | more: |
Frederic Weisbecker | 998bedc | 2011-05-23 13:06:28 +0200 | [diff] [blame] | 1424 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
| 1425 | if (!event) { |
Thomas Gleixner | fe17420 | 2010-11-30 17:49:49 +0000 | [diff] [blame] | 1426 | if (mmaps[map_idx]) { |
| 1427 | munmap(mmaps[map_idx], mmap_size); |
| 1428 | mmaps[map_idx] = NULL; |
| 1429 | } |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1430 | |
Thomas Gleixner | 0331ee0 | 2010-11-30 17:49:38 +0000 | [diff] [blame] | 1431 | page_offset = page_size * (head / page_size); |
| 1432 | file_offset += page_offset; |
| 1433 | head -= page_offset; |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1434 | goto remap; |
| 1435 | } |
| 1436 | |
| 1437 | size = event->header.size; |
| 1438 | |
Thomas Gleixner | d651328 | 2010-11-30 17:49:44 +0000 | [diff] [blame] | 1439 | if (size == 0 || |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1440 | perf_session__process_event(session, event, tool, file_pos) < 0) { |
Jiri Olsa | 9389a46 | 2012-04-16 20:42:51 +0200 | [diff] [blame] | 1441 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
| 1442 | file_offset + head, event->header.size, |
| 1443 | event->header.type); |
| 1444 | err = -EINVAL; |
| 1445 | goto out_err; |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1446 | } |
| 1447 | |
| 1448 | head += size; |
Thomas Gleixner | d651328 | 2010-11-30 17:49:44 +0000 | [diff] [blame] | 1449 | file_pos += size; |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1450 | |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 1451 | if (file_pos >= progress_next) { |
| 1452 | progress_next += file_size / 16; |
Arnaldo Carvalho de Melo | ca59bcb | 2011-10-25 13:29:11 -0200 | [diff] [blame] | 1453 | ui_progress__update(file_pos, file_size, |
| 1454 | "Processing events..."); |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 1455 | } |
| 1456 | |
Thomas Gleixner | d651328 | 2010-11-30 17:49:44 +0000 | [diff] [blame] | 1457 | if (file_pos < file_size) |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1458 | goto more; |
Thomas Gleixner | d651328 | 2010-11-30 17:49:44 +0000 | [diff] [blame] | 1459 | |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1460 | err = 0; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 1461 | /* do the final flush for ordered samples */ |
Thomas Gleixner | 0331ee0 | 2010-11-30 17:49:38 +0000 | [diff] [blame] | 1462 | session->ordered_samples.next_flush = ULLONG_MAX; |
David Ahern | d25380cd | 2012-08-26 12:24:41 -0600 | [diff] [blame] | 1463 | err = flush_sample_queue(session, tool); |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1464 | out_err: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1465 | perf_session__warn_about_errors(session, tool); |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 1466 | perf_session_free_sample_buffers(session); |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1467 | return err; |
| 1468 | } |
Arnaldo Carvalho de Melo | 2729559 | 2009-12-27 21:37:01 -0200 | [diff] [blame] | 1469 | |
Arnaldo Carvalho de Melo | 6122e4e | 2010-02-03 16:52:05 -0200 | [diff] [blame] | 1470 | int perf_session__process_events(struct perf_session *self, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1471 | struct perf_tool *tool) |
Arnaldo Carvalho de Melo | 6122e4e | 2010-02-03 16:52:05 -0200 | [diff] [blame] | 1472 | { |
| 1473 | int err; |
| 1474 | |
| 1475 | if (perf_session__register_idle_thread(self) == NULL) |
| 1476 | return -ENOMEM; |
| 1477 | |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1478 | if (!self->fd_pipe) |
| 1479 | err = __perf_session__process_events(self, |
| 1480 | self->header.data_offset, |
| 1481 | self->header.data_size, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1482 | self->size, tool); |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1483 | else |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1484 | err = __perf_session__process_pipe_events(self, tool); |
Dave Martin | 88ca895 | 2010-07-27 11:46:12 -0300 | [diff] [blame] | 1485 | |
Arnaldo Carvalho de Melo | 6122e4e | 2010-02-03 16:52:05 -0200 | [diff] [blame] | 1486 | return err; |
| 1487 | } |
| 1488 | |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 1489 | bool perf_session__has_traces(struct perf_session *session, const char *msg) |
Arnaldo Carvalho de Melo | 2729559 | 2009-12-27 21:37:01 -0200 | [diff] [blame] | 1490 | { |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 1491 | if (!(perf_evlist__sample_type(session->evlist) & PERF_SAMPLE_RAW)) { |
Arnaldo Carvalho de Melo | d549c769 | 2009-12-27 21:37:02 -0200 | [diff] [blame] | 1492 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
| 1493 | return false; |
Arnaldo Carvalho de Melo | 2729559 | 2009-12-27 21:37:01 -0200 | [diff] [blame] | 1494 | } |
| 1495 | |
Arnaldo Carvalho de Melo | d549c769 | 2009-12-27 21:37:02 -0200 | [diff] [blame] | 1496 | return true; |
Arnaldo Carvalho de Melo | 2729559 | 2009-12-27 21:37:01 -0200 | [diff] [blame] | 1497 | } |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 1498 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1499 | int maps__set_kallsyms_ref_reloc_sym(struct map **maps, |
| 1500 | const char *symbol_name, u64 addr) |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 1501 | { |
| 1502 | char *bracket; |
Arnaldo Carvalho de Melo | 9de89fe | 2010-02-03 16:52:00 -0200 | [diff] [blame] | 1503 | enum map_type i; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1504 | struct ref_reloc_sym *ref; |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 1505 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1506 | ref = zalloc(sizeof(struct ref_reloc_sym)); |
| 1507 | if (ref == NULL) |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 1508 | return -ENOMEM; |
| 1509 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1510 | ref->name = strdup(symbol_name); |
| 1511 | if (ref->name == NULL) { |
| 1512 | free(ref); |
| 1513 | return -ENOMEM; |
| 1514 | } |
| 1515 | |
| 1516 | bracket = strchr(ref->name, ']'); |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 1517 | if (bracket) |
| 1518 | *bracket = '\0'; |
| 1519 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1520 | ref->addr = addr; |
Arnaldo Carvalho de Melo | 9de89fe | 2010-02-03 16:52:00 -0200 | [diff] [blame] | 1521 | |
| 1522 | for (i = 0; i < MAP__NR_TYPES; ++i) { |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1523 | struct kmap *kmap = map__kmap(maps[i]); |
| 1524 | kmap->ref_reloc_sym = ref; |
Arnaldo Carvalho de Melo | 9de89fe | 2010-02-03 16:52:00 -0200 | [diff] [blame] | 1525 | } |
| 1526 | |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 1527 | return 0; |
| 1528 | } |
Arnaldo Carvalho de Melo | 1f626bc | 2010-05-09 19:57:08 -0300 | [diff] [blame] | 1529 | |
| 1530 | size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp) |
| 1531 | { |
| 1532 | return __dsos__fprintf(&self->host_machine.kernel_dsos, fp) + |
| 1533 | __dsos__fprintf(&self->host_machine.user_dsos, fp) + |
| 1534 | machines__fprintf_dsos(&self->machines, fp); |
| 1535 | } |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 1536 | |
| 1537 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp, |
| 1538 | bool with_hits) |
| 1539 | { |
| 1540 | size_t ret = machine__fprintf_dsos_buildid(&self->host_machine, fp, with_hits); |
| 1541 | return ret + machines__fprintf_dsos_buildid(&self->machines, fp, with_hits); |
| 1542 | } |
Arnaldo Carvalho de Melo | e248de3 | 2011-03-05 21:40:06 -0300 | [diff] [blame] | 1543 | |
| 1544 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) |
| 1545 | { |
| 1546 | struct perf_evsel *pos; |
| 1547 | size_t ret = fprintf(fp, "Aggregated stats:\n"); |
| 1548 | |
| 1549 | ret += hists__fprintf_nr_events(&session->hists, fp); |
| 1550 | |
| 1551 | list_for_each_entry(pos, &session->evlist->entries, node) { |
Arnaldo Carvalho de Melo | 7289f83 | 2012-06-12 12:34:58 -0300 | [diff] [blame] | 1552 | ret += fprintf(fp, "%s stats:\n", perf_evsel__name(pos)); |
Arnaldo Carvalho de Melo | e248de3 | 2011-03-05 21:40:06 -0300 | [diff] [blame] | 1553 | ret += hists__fprintf_nr_events(&pos->hists, fp); |
| 1554 | } |
| 1555 | |
| 1556 | return ret; |
| 1557 | } |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1558 | |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 1559 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
| 1560 | { |
| 1561 | /* |
| 1562 | * FIXME: Here we have to actually print all the machines in this |
| 1563 | * session, not just the host... |
| 1564 | */ |
| 1565 | return machine__fprintf(&session->host_machine, fp); |
| 1566 | } |
| 1567 | |
| 1568 | void perf_session__remove_thread(struct perf_session *session, |
| 1569 | struct thread *th) |
| 1570 | { |
| 1571 | /* |
| 1572 | * FIXME: This one makes no sense, we need to remove the thread from |
| 1573 | * the machine it belongs to, perf_session can have many machines, so |
| 1574 | * doing it always on ->host_machine is wrong. Fix when auditing all |
| 1575 | * the 'perf kvm' code. |
| 1576 | */ |
| 1577 | machine__remove_thread(&session->host_machine, th); |
| 1578 | } |
| 1579 | |
David Ahern | 9cbdb70 | 2011-04-06 21:54:20 -0600 | [diff] [blame] | 1580 | struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, |
| 1581 | unsigned int type) |
| 1582 | { |
| 1583 | struct perf_evsel *pos; |
| 1584 | |
| 1585 | list_for_each_entry(pos, &session->evlist->entries, node) { |
| 1586 | if (pos->attr.type == type) |
| 1587 | return pos; |
| 1588 | } |
| 1589 | return NULL; |
| 1590 | } |
| 1591 | |
Jiri Olsa | 71ad0f5 | 2012-08-07 15:20:46 +0200 | [diff] [blame] | 1592 | void perf_evsel__print_ip(struct perf_evsel *evsel, union perf_event *event, |
| 1593 | struct perf_sample *sample, struct machine *machine, |
| 1594 | int print_sym, int print_dso, int print_symoffset) |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1595 | { |
| 1596 | struct addr_location al; |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1597 | struct callchain_cursor_node *node; |
| 1598 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1599 | if (perf_event__preprocess_sample(event, machine, &al, sample, |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1600 | NULL) < 0) { |
| 1601 | error("problem processing %d event, skipping it.\n", |
| 1602 | event->header.type); |
| 1603 | return; |
| 1604 | } |
| 1605 | |
| 1606 | if (symbol_conf.use_callchain && sample->callchain) { |
| 1607 | |
Jiri Olsa | 71ad0f5 | 2012-08-07 15:20:46 +0200 | [diff] [blame] | 1608 | |
| 1609 | if (machine__resolve_callchain(machine, evsel, al.thread, |
| 1610 | sample, NULL) != 0) { |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1611 | if (verbose) |
| 1612 | error("Failed to resolve callchain. Skipping\n"); |
| 1613 | return; |
| 1614 | } |
Namhyung Kim | 4726064 | 2012-05-31 14:43:26 +0900 | [diff] [blame] | 1615 | callchain_cursor_commit(&callchain_cursor); |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1616 | |
| 1617 | while (1) { |
Namhyung Kim | 4726064 | 2012-05-31 14:43:26 +0900 | [diff] [blame] | 1618 | node = callchain_cursor_current(&callchain_cursor); |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1619 | if (!node) |
| 1620 | break; |
| 1621 | |
David Ahern | 787bef1 | 2011-05-27 14:28:43 -0600 | [diff] [blame] | 1622 | printf("\t%16" PRIx64, node->ip); |
| 1623 | if (print_sym) { |
Akihiro Nagai | 547a92e | 2012-01-30 13:42:57 +0900 | [diff] [blame] | 1624 | printf(" "); |
| 1625 | symbol__fprintf_symname(node->sym, stdout); |
David Ahern | 610723f | 2011-05-27 14:28:44 -0600 | [diff] [blame] | 1626 | } |
| 1627 | if (print_dso) { |
Akihiro Nagai | 547a92e | 2012-01-30 13:42:57 +0900 | [diff] [blame] | 1628 | printf(" ("); |
David Ahern | 52deff7 | 2012-05-29 22:58:26 -0600 | [diff] [blame] | 1629 | map__fprintf_dsoname(node->map, stdout); |
Akihiro Nagai | 547a92e | 2012-01-30 13:42:57 +0900 | [diff] [blame] | 1630 | printf(")"); |
David Ahern | 787bef1 | 2011-05-27 14:28:43 -0600 | [diff] [blame] | 1631 | } |
| 1632 | printf("\n"); |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1633 | |
Namhyung Kim | 4726064 | 2012-05-31 14:43:26 +0900 | [diff] [blame] | 1634 | callchain_cursor_advance(&callchain_cursor); |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1635 | } |
| 1636 | |
| 1637 | } else { |
David Ahern | adc4bf9 | 2011-05-30 09:16:27 -0600 | [diff] [blame] | 1638 | printf("%16" PRIx64, sample->ip); |
David Ahern | 787bef1 | 2011-05-27 14:28:43 -0600 | [diff] [blame] | 1639 | if (print_sym) { |
Akihiro Nagai | 547a92e | 2012-01-30 13:42:57 +0900 | [diff] [blame] | 1640 | printf(" "); |
Akihiro Nagai | a978f2a | 2012-01-30 13:43:15 +0900 | [diff] [blame] | 1641 | if (print_symoffset) |
| 1642 | symbol__fprintf_symname_offs(al.sym, &al, |
| 1643 | stdout); |
| 1644 | else |
| 1645 | symbol__fprintf_symname(al.sym, stdout); |
David Ahern | 610723f | 2011-05-27 14:28:44 -0600 | [diff] [blame] | 1646 | } |
| 1647 | |
| 1648 | if (print_dso) { |
Akihiro Nagai | 547a92e | 2012-01-30 13:42:57 +0900 | [diff] [blame] | 1649 | printf(" ("); |
| 1650 | map__fprintf_dsoname(al.map, stdout); |
| 1651 | printf(")"); |
David Ahern | 787bef1 | 2011-05-27 14:28:43 -0600 | [diff] [blame] | 1652 | } |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1653 | } |
| 1654 | } |
Anton Blanchard | 5d67be9 | 2011-07-04 21:57:50 +1000 | [diff] [blame] | 1655 | |
| 1656 | int perf_session__cpu_bitmap(struct perf_session *session, |
| 1657 | const char *cpu_list, unsigned long *cpu_bitmap) |
| 1658 | { |
| 1659 | int i; |
| 1660 | struct cpu_map *map; |
| 1661 | |
| 1662 | for (i = 0; i < PERF_TYPE_MAX; ++i) { |
| 1663 | struct perf_evsel *evsel; |
| 1664 | |
| 1665 | evsel = perf_session__find_first_evtype(session, i); |
| 1666 | if (!evsel) |
| 1667 | continue; |
| 1668 | |
| 1669 | if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) { |
| 1670 | pr_err("File does not contain CPU events. " |
| 1671 | "Remove -c option to proceed.\n"); |
| 1672 | return -1; |
| 1673 | } |
| 1674 | } |
| 1675 | |
| 1676 | map = cpu_map__new(cpu_list); |
David Ahern | 47fbe53 | 2011-11-13 10:45:27 -0700 | [diff] [blame] | 1677 | if (map == NULL) { |
| 1678 | pr_err("Invalid cpu_list\n"); |
| 1679 | return -1; |
| 1680 | } |
Anton Blanchard | 5d67be9 | 2011-07-04 21:57:50 +1000 | [diff] [blame] | 1681 | |
| 1682 | for (i = 0; i < map->nr; i++) { |
| 1683 | int cpu = map->map[i]; |
| 1684 | |
| 1685 | if (cpu >= MAX_NR_CPUS) { |
| 1686 | pr_err("Requested CPU %d too large. " |
| 1687 | "Consider raising MAX_NR_CPUS\n", cpu); |
| 1688 | return -1; |
| 1689 | } |
| 1690 | |
| 1691 | set_bit(cpu, cpu_bitmap); |
| 1692 | } |
| 1693 | |
| 1694 | return 0; |
| 1695 | } |
Stephane Eranian | fbe96f2 | 2011-09-30 15:40:40 +0200 | [diff] [blame] | 1696 | |
| 1697 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, |
| 1698 | bool full) |
| 1699 | { |
| 1700 | struct stat st; |
| 1701 | int ret; |
| 1702 | |
| 1703 | if (session == NULL || fp == NULL) |
| 1704 | return; |
| 1705 | |
| 1706 | ret = fstat(session->fd, &st); |
| 1707 | if (ret == -1) |
| 1708 | return; |
| 1709 | |
| 1710 | fprintf(fp, "# ========\n"); |
| 1711 | fprintf(fp, "# captured on: %s", ctime(&st.st_ctime)); |
| 1712 | perf_header__fprintf_info(session, fp, full); |
| 1713 | fprintf(fp, "# ========\n#\n"); |
| 1714 | } |
Arnaldo Carvalho de Melo | da37896 | 2012-06-27 13:08:42 -0300 | [diff] [blame] | 1715 | |
| 1716 | |
| 1717 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, |
| 1718 | const struct perf_evsel_str_handler *assocs, |
| 1719 | size_t nr_assocs) |
| 1720 | { |
| 1721 | struct perf_evlist *evlist = session->evlist; |
| 1722 | struct event_format *format; |
| 1723 | struct perf_evsel *evsel; |
| 1724 | char *tracepoint, *name; |
| 1725 | size_t i; |
| 1726 | int err; |
| 1727 | |
| 1728 | for (i = 0; i < nr_assocs; i++) { |
| 1729 | err = -ENOMEM; |
| 1730 | tracepoint = strdup(assocs[i].name); |
| 1731 | if (tracepoint == NULL) |
| 1732 | goto out; |
| 1733 | |
| 1734 | err = -ENOENT; |
| 1735 | name = strchr(tracepoint, ':'); |
| 1736 | if (name == NULL) |
| 1737 | goto out_free; |
| 1738 | |
| 1739 | *name++ = '\0'; |
| 1740 | format = pevent_find_event_by_name(session->pevent, |
| 1741 | tracepoint, name); |
| 1742 | if (format == NULL) { |
| 1743 | /* |
| 1744 | * Adding a handler for an event not in the session, |
| 1745 | * just ignore it. |
| 1746 | */ |
| 1747 | goto next; |
| 1748 | } |
| 1749 | |
| 1750 | evsel = perf_evlist__find_tracepoint_by_id(evlist, format->id); |
| 1751 | if (evsel == NULL) |
| 1752 | goto next; |
| 1753 | |
| 1754 | err = -EEXIST; |
| 1755 | if (evsel->handler.func != NULL) |
| 1756 | goto out_free; |
| 1757 | evsel->handler.func = assocs[i].handler; |
| 1758 | next: |
| 1759 | free(tracepoint); |
| 1760 | } |
| 1761 | |
| 1762 | err = 0; |
| 1763 | out: |
| 1764 | return err; |
| 1765 | |
| 1766 | out_free: |
| 1767 | free(tracepoint); |
| 1768 | goto out; |
| 1769 | } |