Xiao Guangrong | b8f46c5 | 2010-02-03 11:53:14 +0800 | [diff] [blame] | 1 | #define _FILE_OFFSET_BITS 64 |
| 2 | |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 3 | #include <sys/types.h> |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 4 | #include <byteswap.h> |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 5 | #include <unistd.h> |
| 6 | #include <stdio.h> |
| 7 | #include <stdlib.h> |
Frederic Weisbecker | 8671dab | 2009-11-11 04:51:03 +0100 | [diff] [blame] | 8 | #include <linux/list.h> |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 9 | #include <linux/kernel.h> |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 10 | |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 11 | #include "evlist.h" |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 12 | #include "evsel.h" |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 13 | #include "util.h" |
| 14 | #include "header.h" |
Frederic Weisbecker | 03456a1 | 2009-10-06 23:36:47 +0200 | [diff] [blame] | 15 | #include "../perf.h" |
| 16 | #include "trace-event.h" |
Arnaldo Carvalho de Melo | 301a0b0 | 2009-12-13 19:50:25 -0200 | [diff] [blame] | 17 | #include "session.h" |
Frederic Weisbecker | 8671dab | 2009-11-11 04:51:03 +0100 | [diff] [blame] | 18 | #include "symbol.h" |
Frederic Weisbecker | 4778d2e | 2009-11-11 04:51:05 +0100 | [diff] [blame] | 19 | #include "debug.h" |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 20 | |
Stephane Eranian | a1ac1d3 | 2010-06-17 11:39:01 +0200 | [diff] [blame] | 21 | static bool no_buildid_cache = false; |
| 22 | |
Arjan van de Ven | 8755a8f | 2009-09-12 07:52:51 +0200 | [diff] [blame] | 23 | static int event_count; |
| 24 | static struct perf_trace_event_type *events; |
| 25 | |
Arnaldo Carvalho de Melo | ae99fb2 | 2009-12-28 22:48:33 -0200 | [diff] [blame] | 26 | int perf_header__push_event(u64 id, const char *name) |
Arjan van de Ven | 8755a8f | 2009-09-12 07:52:51 +0200 | [diff] [blame] | 27 | { |
Arjan van de Ven | ec60a3f | 2009-09-19 13:36:30 +0200 | [diff] [blame] | 28 | if (strlen(name) > MAX_EVENT_NAME) |
Arnaldo Carvalho de Melo | 6beba7a | 2009-10-21 17:34:06 -0200 | [diff] [blame] | 29 | pr_warning("Event %s will be truncated\n", name); |
Arjan van de Ven | 8755a8f | 2009-09-12 07:52:51 +0200 | [diff] [blame] | 30 | |
| 31 | if (!events) { |
| 32 | events = malloc(sizeof(struct perf_trace_event_type)); |
Arnaldo Carvalho de Melo | ae99fb2 | 2009-12-28 22:48:33 -0200 | [diff] [blame] | 33 | if (events == NULL) |
| 34 | return -ENOMEM; |
Arjan van de Ven | 8755a8f | 2009-09-12 07:52:51 +0200 | [diff] [blame] | 35 | } else { |
Arnaldo Carvalho de Melo | ae99fb2 | 2009-12-28 22:48:33 -0200 | [diff] [blame] | 36 | struct perf_trace_event_type *nevents; |
| 37 | |
| 38 | nevents = realloc(events, (event_count + 1) * sizeof(*events)); |
| 39 | if (nevents == NULL) |
| 40 | return -ENOMEM; |
| 41 | events = nevents; |
Arjan van de Ven | 8755a8f | 2009-09-12 07:52:51 +0200 | [diff] [blame] | 42 | } |
| 43 | memset(&events[event_count], 0, sizeof(struct perf_trace_event_type)); |
| 44 | events[event_count].event_id = id; |
Arjan van de Ven | ec60a3f | 2009-09-19 13:36:30 +0200 | [diff] [blame] | 45 | strncpy(events[event_count].name, name, MAX_EVENT_NAME - 1); |
Arjan van de Ven | 8755a8f | 2009-09-12 07:52:51 +0200 | [diff] [blame] | 46 | event_count++; |
Arnaldo Carvalho de Melo | ae99fb2 | 2009-12-28 22:48:33 -0200 | [diff] [blame] | 47 | return 0; |
Arjan van de Ven | 8755a8f | 2009-09-12 07:52:51 +0200 | [diff] [blame] | 48 | } |
| 49 | |
| 50 | char *perf_header__find_event(u64 id) |
| 51 | { |
| 52 | int i; |
| 53 | for (i = 0 ; i < event_count; i++) { |
| 54 | if (events[i].event_id == id) |
| 55 | return events[i].name; |
| 56 | } |
| 57 | return NULL; |
| 58 | } |
| 59 | |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 60 | static const char *__perf_magic = "PERFFILE"; |
| 61 | |
| 62 | #define PERF_MAGIC (*(u64 *)__perf_magic) |
| 63 | |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 64 | struct perf_file_attr { |
Ingo Molnar | cdd6c48 | 2009-09-21 12:02:48 +0200 | [diff] [blame] | 65 | struct perf_event_attr attr; |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 66 | struct perf_file_section ids; |
| 67 | }; |
| 68 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 69 | void perf_header__set_feat(struct perf_header *header, int feat) |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 70 | { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 71 | set_bit(feat, header->adds_features); |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 72 | } |
| 73 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 74 | void perf_header__clear_feat(struct perf_header *header, int feat) |
Arnaldo Carvalho de Melo | baa2f6c | 2010-11-26 19:39:15 -0200 | [diff] [blame] | 75 | { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 76 | clear_bit(feat, header->adds_features); |
Arnaldo Carvalho de Melo | baa2f6c | 2010-11-26 19:39:15 -0200 | [diff] [blame] | 77 | } |
| 78 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 79 | bool perf_header__has_feat(const struct perf_header *header, int feat) |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 80 | { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 81 | return test_bit(feat, header->adds_features); |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 82 | } |
| 83 | |
Arnaldo Carvalho de Melo | 3726cc7 | 2009-11-17 01:18:12 -0200 | [diff] [blame] | 84 | static int do_write(int fd, const void *buf, size_t size) |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 85 | { |
| 86 | while (size) { |
| 87 | int ret = write(fd, buf, size); |
| 88 | |
| 89 | if (ret < 0) |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 90 | return -errno; |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 91 | |
| 92 | size -= ret; |
| 93 | buf += ret; |
| 94 | } |
Arnaldo Carvalho de Melo | 3726cc7 | 2009-11-17 01:18:12 -0200 | [diff] [blame] | 95 | |
| 96 | return 0; |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 97 | } |
| 98 | |
Arnaldo Carvalho de Melo | f92cb24 | 2010-01-04 16:19:28 -0200 | [diff] [blame] | 99 | #define NAME_ALIGN 64 |
| 100 | |
| 101 | static int write_padded(int fd, const void *bf, size_t count, |
| 102 | size_t count_aligned) |
| 103 | { |
| 104 | static const char zero_buf[NAME_ALIGN]; |
| 105 | int err = do_write(fd, bf, count); |
| 106 | |
| 107 | if (!err) |
| 108 | err = do_write(fd, zero_buf, count_aligned - count); |
| 109 | |
| 110 | return err; |
| 111 | } |
| 112 | |
Arnaldo Carvalho de Melo | 4cf4013 | 2009-12-27 21:37:06 -0200 | [diff] [blame] | 113 | #define dsos__for_each_with_build_id(pos, head) \ |
| 114 | list_for_each_entry(pos, head, node) \ |
| 115 | if (!pos->has_build_id) \ |
| 116 | continue; \ |
| 117 | else |
| 118 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 119 | static int __dsos__write_buildid_table(struct list_head *head, pid_t pid, |
| 120 | u16 misc, int fd) |
Frederic Weisbecker | 8671dab | 2009-11-11 04:51:03 +0100 | [diff] [blame] | 121 | { |
Arnaldo Carvalho de Melo | e30a3d1 | 2009-11-18 20:20:51 -0200 | [diff] [blame] | 122 | struct dso *pos; |
Frederic Weisbecker | 8671dab | 2009-11-11 04:51:03 +0100 | [diff] [blame] | 123 | |
Arnaldo Carvalho de Melo | 4cf4013 | 2009-12-27 21:37:06 -0200 | [diff] [blame] | 124 | dsos__for_each_with_build_id(pos, head) { |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 125 | int err; |
Arnaldo Carvalho de Melo | e30a3d1 | 2009-11-18 20:20:51 -0200 | [diff] [blame] | 126 | struct build_id_event b; |
Arnaldo Carvalho de Melo | 6122e4e | 2010-02-03 16:52:05 -0200 | [diff] [blame] | 127 | size_t len; |
Frederic Weisbecker | 8671dab | 2009-11-11 04:51:03 +0100 | [diff] [blame] | 128 | |
Arnaldo Carvalho de Melo | 6122e4e | 2010-02-03 16:52:05 -0200 | [diff] [blame] | 129 | if (!pos->hit) |
| 130 | continue; |
| 131 | len = pos->long_name_len + 1; |
OGAWA Hirofumi | 7691b1e | 2009-12-06 20:10:49 +0900 | [diff] [blame] | 132 | len = ALIGN(len, NAME_ALIGN); |
Arnaldo Carvalho de Melo | e30a3d1 | 2009-11-18 20:20:51 -0200 | [diff] [blame] | 133 | memset(&b, 0, sizeof(b)); |
| 134 | memcpy(&b.build_id, pos->build_id, sizeof(pos->build_id)); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 135 | b.pid = pid; |
Arnaldo Carvalho de Melo | a89e5abe | 2010-01-07 19:59:39 -0200 | [diff] [blame] | 136 | b.header.misc = misc; |
Arnaldo Carvalho de Melo | e30a3d1 | 2009-11-18 20:20:51 -0200 | [diff] [blame] | 137 | b.header.size = sizeof(b) + len; |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 138 | err = do_write(fd, &b, sizeof(b)); |
| 139 | if (err < 0) |
| 140 | return err; |
Arnaldo Carvalho de Melo | f92cb24 | 2010-01-04 16:19:28 -0200 | [diff] [blame] | 141 | err = write_padded(fd, pos->long_name, |
| 142 | pos->long_name_len + 1, len); |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 143 | if (err < 0) |
| 144 | return err; |
Frederic Weisbecker | 8671dab | 2009-11-11 04:51:03 +0100 | [diff] [blame] | 145 | } |
Arnaldo Carvalho de Melo | 3726cc7 | 2009-11-17 01:18:12 -0200 | [diff] [blame] | 146 | |
| 147 | return 0; |
Frederic Weisbecker | 8671dab | 2009-11-11 04:51:03 +0100 | [diff] [blame] | 148 | } |
| 149 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 150 | static int machine__write_buildid_table(struct machine *machine, int fd) |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 151 | { |
| 152 | int err; |
| 153 | u16 kmisc = PERF_RECORD_MISC_KERNEL, |
| 154 | umisc = PERF_RECORD_MISC_USER; |
| 155 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 156 | if (!machine__is_host(machine)) { |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 157 | kmisc = PERF_RECORD_MISC_GUEST_KERNEL; |
| 158 | umisc = PERF_RECORD_MISC_GUEST_USER; |
| 159 | } |
| 160 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 161 | err = __dsos__write_buildid_table(&machine->kernel_dsos, machine->pid, |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 162 | kmisc, fd); |
| 163 | if (err == 0) |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 164 | err = __dsos__write_buildid_table(&machine->user_dsos, |
| 165 | machine->pid, umisc, fd); |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 166 | return err; |
| 167 | } |
| 168 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 169 | static int dsos__write_buildid_table(struct perf_header *header, int fd) |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 170 | { |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 171 | struct perf_session *session = container_of(header, |
| 172 | struct perf_session, header); |
| 173 | struct rb_node *nd; |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 174 | int err = machine__write_buildid_table(&session->host_machine, fd); |
| 175 | |
| 176 | if (err) |
| 177 | return err; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 178 | |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 179 | for (nd = rb_first(&session->machines); nd; nd = rb_next(nd)) { |
| 180 | struct machine *pos = rb_entry(nd, struct machine, rb_node); |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 181 | err = machine__write_buildid_table(pos, fd); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 182 | if (err) |
| 183 | break; |
| 184 | } |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 185 | return err; |
| 186 | } |
| 187 | |
Arnaldo Carvalho de Melo | ef12a14 | 2010-01-20 15:28:45 -0200 | [diff] [blame] | 188 | int build_id_cache__add_s(const char *sbuild_id, const char *debugdir, |
| 189 | const char *name, bool is_kallsyms) |
Arnaldo Carvalho de Melo | 4cf4013 | 2009-12-27 21:37:06 -0200 | [diff] [blame] | 190 | { |
| 191 | const size_t size = PATH_MAX; |
Franck Bui-Huu | 68a7a77 | 2010-12-10 22:06:26 +0100 | [diff] [blame] | 192 | char *realname = realpath(name, NULL), |
| 193 | *filename = malloc(size), |
Arnaldo Carvalho de Melo | ef12a14 | 2010-01-20 15:28:45 -0200 | [diff] [blame] | 194 | *linkname = malloc(size), *targetname; |
Arnaldo Carvalho de Melo | 4cf4013 | 2009-12-27 21:37:06 -0200 | [diff] [blame] | 195 | int len, err = -1; |
| 196 | |
Franck Bui-Huu | 68a7a77 | 2010-12-10 22:06:26 +0100 | [diff] [blame] | 197 | if (realname == NULL || filename == NULL || linkname == NULL) |
Arnaldo Carvalho de Melo | 4cf4013 | 2009-12-27 21:37:06 -0200 | [diff] [blame] | 198 | goto out_free; |
| 199 | |
Arnaldo Carvalho de Melo | 9e20144 | 2010-01-14 18:30:06 -0200 | [diff] [blame] | 200 | len = snprintf(filename, size, "%s%s%s", |
Franck Bui-Huu | 68a7a77 | 2010-12-10 22:06:26 +0100 | [diff] [blame] | 201 | debugdir, is_kallsyms ? "/" : "", realname); |
Arnaldo Carvalho de Melo | 4cf4013 | 2009-12-27 21:37:06 -0200 | [diff] [blame] | 202 | if (mkdir_p(filename, 0755)) |
| 203 | goto out_free; |
| 204 | |
Arnaldo Carvalho de Melo | ef12a14 | 2010-01-20 15:28:45 -0200 | [diff] [blame] | 205 | snprintf(filename + len, sizeof(filename) - len, "/%s", sbuild_id); |
Arnaldo Carvalho de Melo | 4cf4013 | 2009-12-27 21:37:06 -0200 | [diff] [blame] | 206 | |
Arnaldo Carvalho de Melo | 9e20144 | 2010-01-14 18:30:06 -0200 | [diff] [blame] | 207 | if (access(filename, F_OK)) { |
| 208 | if (is_kallsyms) { |
| 209 | if (copyfile("/proc/kallsyms", filename)) |
| 210 | goto out_free; |
Franck Bui-Huu | 68a7a77 | 2010-12-10 22:06:26 +0100 | [diff] [blame] | 211 | } else if (link(realname, filename) && copyfile(name, filename)) |
Arnaldo Carvalho de Melo | 9e20144 | 2010-01-14 18:30:06 -0200 | [diff] [blame] | 212 | goto out_free; |
| 213 | } |
Arnaldo Carvalho de Melo | 4cf4013 | 2009-12-27 21:37:06 -0200 | [diff] [blame] | 214 | |
| 215 | len = snprintf(linkname, size, "%s/.build-id/%.2s", |
| 216 | debugdir, sbuild_id); |
| 217 | |
| 218 | if (access(linkname, X_OK) && mkdir_p(linkname, 0755)) |
| 219 | goto out_free; |
| 220 | |
| 221 | snprintf(linkname + len, size - len, "/%s", sbuild_id + 2); |
| 222 | targetname = filename + strlen(debugdir) - 5; |
| 223 | memcpy(targetname, "../..", 5); |
| 224 | |
| 225 | if (symlink(targetname, linkname) == 0) |
| 226 | err = 0; |
| 227 | out_free: |
Franck Bui-Huu | 68a7a77 | 2010-12-10 22:06:26 +0100 | [diff] [blame] | 228 | free(realname); |
Arnaldo Carvalho de Melo | 4cf4013 | 2009-12-27 21:37:06 -0200 | [diff] [blame] | 229 | free(filename); |
| 230 | free(linkname); |
| 231 | return err; |
| 232 | } |
| 233 | |
Arnaldo Carvalho de Melo | ef12a14 | 2010-01-20 15:28:45 -0200 | [diff] [blame] | 234 | static int build_id_cache__add_b(const u8 *build_id, size_t build_id_size, |
| 235 | const char *name, const char *debugdir, |
| 236 | bool is_kallsyms) |
| 237 | { |
| 238 | char sbuild_id[BUILD_ID_SIZE * 2 + 1]; |
| 239 | |
| 240 | build_id__sprintf(build_id, build_id_size, sbuild_id); |
| 241 | |
| 242 | return build_id_cache__add_s(sbuild_id, debugdir, name, is_kallsyms); |
| 243 | } |
| 244 | |
| 245 | int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir) |
| 246 | { |
| 247 | const size_t size = PATH_MAX; |
| 248 | char *filename = malloc(size), |
| 249 | *linkname = malloc(size); |
| 250 | int err = -1; |
| 251 | |
| 252 | if (filename == NULL || linkname == NULL) |
| 253 | goto out_free; |
| 254 | |
| 255 | snprintf(linkname, size, "%s/.build-id/%.2s/%s", |
| 256 | debugdir, sbuild_id, sbuild_id + 2); |
| 257 | |
| 258 | if (access(linkname, F_OK)) |
| 259 | goto out_free; |
| 260 | |
| 261 | if (readlink(linkname, filename, size) < 0) |
| 262 | goto out_free; |
| 263 | |
| 264 | if (unlink(linkname)) |
| 265 | goto out_free; |
| 266 | |
| 267 | /* |
| 268 | * Since the link is relative, we must make it absolute: |
| 269 | */ |
| 270 | snprintf(linkname, size, "%s/.build-id/%.2s/%s", |
| 271 | debugdir, sbuild_id, filename); |
| 272 | |
| 273 | if (unlink(linkname)) |
| 274 | goto out_free; |
| 275 | |
| 276 | err = 0; |
| 277 | out_free: |
| 278 | free(filename); |
| 279 | free(linkname); |
| 280 | return err; |
| 281 | } |
| 282 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 283 | static int dso__cache_build_id(struct dso *dso, const char *debugdir) |
Arnaldo Carvalho de Melo | ef12a14 | 2010-01-20 15:28:45 -0200 | [diff] [blame] | 284 | { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 285 | bool is_kallsyms = dso->kernel && dso->long_name[0] != '/'; |
Arnaldo Carvalho de Melo | ef12a14 | 2010-01-20 15:28:45 -0200 | [diff] [blame] | 286 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 287 | return build_id_cache__add_b(dso->build_id, sizeof(dso->build_id), |
| 288 | dso->long_name, debugdir, is_kallsyms); |
Arnaldo Carvalho de Melo | ef12a14 | 2010-01-20 15:28:45 -0200 | [diff] [blame] | 289 | } |
| 290 | |
Arnaldo Carvalho de Melo | 4cf4013 | 2009-12-27 21:37:06 -0200 | [diff] [blame] | 291 | static int __dsos__cache_build_ids(struct list_head *head, const char *debugdir) |
| 292 | { |
| 293 | struct dso *pos; |
| 294 | int err = 0; |
| 295 | |
| 296 | dsos__for_each_with_build_id(pos, head) |
| 297 | if (dso__cache_build_id(pos, debugdir)) |
| 298 | err = -1; |
| 299 | |
| 300 | return err; |
| 301 | } |
| 302 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 303 | static int machine__cache_build_ids(struct machine *machine, const char *debugdir) |
Arnaldo Carvalho de Melo | 4cf4013 | 2009-12-27 21:37:06 -0200 | [diff] [blame] | 304 | { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 305 | int ret = __dsos__cache_build_ids(&machine->kernel_dsos, debugdir); |
| 306 | ret |= __dsos__cache_build_ids(&machine->user_dsos, debugdir); |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 307 | return ret; |
| 308 | } |
| 309 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 310 | static int perf_session__cache_build_ids(struct perf_session *session) |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 311 | { |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 312 | struct rb_node *nd; |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 313 | int ret; |
Arnaldo Carvalho de Melo | 4cf4013 | 2009-12-27 21:37:06 -0200 | [diff] [blame] | 314 | char debugdir[PATH_MAX]; |
| 315 | |
Stephane Eranian | 45de34b | 2010-06-01 21:25:01 +0200 | [diff] [blame] | 316 | snprintf(debugdir, sizeof(debugdir), "%s", buildid_dir); |
Arnaldo Carvalho de Melo | 4cf4013 | 2009-12-27 21:37:06 -0200 | [diff] [blame] | 317 | |
| 318 | if (mkdir(debugdir, 0755) != 0 && errno != EEXIST) |
| 319 | return -1; |
| 320 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 321 | ret = machine__cache_build_ids(&session->host_machine, debugdir); |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 322 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 323 | for (nd = rb_first(&session->machines); nd; nd = rb_next(nd)) { |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 324 | struct machine *pos = rb_entry(nd, struct machine, rb_node); |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 325 | ret |= machine__cache_build_ids(pos, debugdir); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 326 | } |
| 327 | return ret ? -1 : 0; |
| 328 | } |
| 329 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 330 | static bool machine__read_build_ids(struct machine *machine, bool with_hits) |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 331 | { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 332 | bool ret = __dsos__read_build_ids(&machine->kernel_dsos, with_hits); |
| 333 | ret |= __dsos__read_build_ids(&machine->user_dsos, with_hits); |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 334 | return ret; |
| 335 | } |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 336 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 337 | static bool perf_session__read_build_ids(struct perf_session *session, bool with_hits) |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 338 | { |
| 339 | struct rb_node *nd; |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 340 | bool ret = machine__read_build_ids(&session->host_machine, with_hits); |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 341 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 342 | for (nd = rb_first(&session->machines); nd; nd = rb_next(nd)) { |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 343 | struct machine *pos = rb_entry(nd, struct machine, rb_node); |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 344 | ret |= machine__read_build_ids(pos, with_hits); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 345 | } |
| 346 | |
| 347 | return ret; |
Arnaldo Carvalho de Melo | 4cf4013 | 2009-12-27 21:37:06 -0200 | [diff] [blame] | 348 | } |
| 349 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 350 | static int perf_header__adds_write(struct perf_header *header, |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 351 | struct perf_evlist *evlist, int fd) |
Frederic Weisbecker | 2ba0825 | 2009-10-17 17:12:34 +0200 | [diff] [blame] | 352 | { |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 353 | int nr_sections; |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 354 | struct perf_session *session; |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 355 | struct perf_file_section *feat_sec; |
| 356 | int sec_size; |
| 357 | u64 sec_start; |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 358 | int idx = 0, err; |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 359 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 360 | session = container_of(header, struct perf_session, header); |
Arnaldo Carvalho de Melo | baa2f6c | 2010-11-26 19:39:15 -0200 | [diff] [blame] | 361 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 362 | if (perf_header__has_feat(header, HEADER_BUILD_ID && |
Arnaldo Carvalho de Melo | baa2f6c | 2010-11-26 19:39:15 -0200 | [diff] [blame] | 363 | !perf_session__read_build_ids(session, true))) |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 364 | perf_header__clear_feat(header, HEADER_BUILD_ID); |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 365 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 366 | nr_sections = bitmap_weight(header->adds_features, HEADER_FEAT_BITS); |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 367 | if (!nr_sections) |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 368 | return 0; |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 369 | |
| 370 | feat_sec = calloc(sizeof(*feat_sec), nr_sections); |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 371 | if (feat_sec == NULL) |
| 372 | return -ENOMEM; |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 373 | |
| 374 | sec_size = sizeof(*feat_sec) * nr_sections; |
| 375 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 376 | sec_start = header->data_offset + header->data_size; |
Xiao Guangrong | f887f30 | 2010-02-04 16:46:42 +0800 | [diff] [blame] | 377 | lseek(fd, sec_start + sec_size, SEEK_SET); |
Frederic Weisbecker | 2ba0825 | 2009-10-17 17:12:34 +0200 | [diff] [blame] | 378 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 379 | if (perf_header__has_feat(header, HEADER_TRACE_INFO)) { |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 380 | struct perf_file_section *trace_sec; |
| 381 | |
| 382 | trace_sec = &feat_sec[idx++]; |
| 383 | |
Frederic Weisbecker | 2ba0825 | 2009-10-17 17:12:34 +0200 | [diff] [blame] | 384 | /* Write trace info */ |
Xiao Guangrong | f887f30 | 2010-02-04 16:46:42 +0800 | [diff] [blame] | 385 | trace_sec->offset = lseek(fd, 0, SEEK_CUR); |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 386 | read_tracing_data(fd, &evlist->entries); |
Xiao Guangrong | f887f30 | 2010-02-04 16:46:42 +0800 | [diff] [blame] | 387 | trace_sec->size = lseek(fd, 0, SEEK_CUR) - trace_sec->offset; |
Frederic Weisbecker | 2ba0825 | 2009-10-17 17:12:34 +0200 | [diff] [blame] | 388 | } |
Frederic Weisbecker | 8671dab | 2009-11-11 04:51:03 +0100 | [diff] [blame] | 389 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 390 | if (perf_header__has_feat(header, HEADER_BUILD_ID)) { |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 391 | struct perf_file_section *buildid_sec; |
| 392 | |
| 393 | buildid_sec = &feat_sec[idx++]; |
| 394 | |
| 395 | /* Write build-ids */ |
Xiao Guangrong | f887f30 | 2010-02-04 16:46:42 +0800 | [diff] [blame] | 396 | buildid_sec->offset = lseek(fd, 0, SEEK_CUR); |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 397 | err = dsos__write_buildid_table(header, fd); |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 398 | if (err < 0) { |
| 399 | pr_debug("failed to write buildid table\n"); |
| 400 | goto out_free; |
| 401 | } |
Xiao Guangrong | f887f30 | 2010-02-04 16:46:42 +0800 | [diff] [blame] | 402 | buildid_sec->size = lseek(fd, 0, SEEK_CUR) - |
| 403 | buildid_sec->offset; |
Stephane Eranian | a1ac1d3 | 2010-06-17 11:39:01 +0200 | [diff] [blame] | 404 | if (!no_buildid_cache) |
| 405 | perf_session__cache_build_ids(session); |
Frederic Weisbecker | 8671dab | 2009-11-11 04:51:03 +0100 | [diff] [blame] | 406 | } |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 407 | |
Xiao Guangrong | f887f30 | 2010-02-04 16:46:42 +0800 | [diff] [blame] | 408 | lseek(fd, sec_start, SEEK_SET); |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 409 | err = do_write(fd, feat_sec, sec_size); |
| 410 | if (err < 0) |
| 411 | pr_debug("failed to write feature section\n"); |
| 412 | out_free: |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 413 | free(feat_sec); |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 414 | return err; |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 415 | } |
Frederic Weisbecker | 2ba0825 | 2009-10-17 17:12:34 +0200 | [diff] [blame] | 416 | |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 417 | int perf_header__write_pipe(int fd) |
| 418 | { |
| 419 | struct perf_pipe_file_header f_header; |
| 420 | int err; |
| 421 | |
| 422 | f_header = (struct perf_pipe_file_header){ |
| 423 | .magic = PERF_MAGIC, |
| 424 | .size = sizeof(f_header), |
| 425 | }; |
| 426 | |
| 427 | err = do_write(fd, &f_header, sizeof(f_header)); |
| 428 | if (err < 0) { |
| 429 | pr_debug("failed to write perf pipe header\n"); |
| 430 | return err; |
| 431 | } |
| 432 | |
| 433 | return 0; |
| 434 | } |
| 435 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 436 | int perf_session__write_header(struct perf_session *session, |
| 437 | struct perf_evlist *evlist, |
| 438 | int fd, bool at_exit) |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 439 | { |
| 440 | struct perf_file_header f_header; |
| 441 | struct perf_file_attr f_attr; |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 442 | struct perf_header *header = &session->header; |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 443 | struct perf_evsel *attr, *pair = NULL; |
| 444 | int err; |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 445 | |
| 446 | lseek(fd, sizeof(f_header), SEEK_SET); |
| 447 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 448 | if (session->evlist != evlist) |
| 449 | pair = list_entry(session->evlist->entries.next, struct perf_evsel, node); |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 450 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 451 | list_for_each_entry(attr, &evlist->entries, node) { |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 452 | attr->id_offset = lseek(fd, 0, SEEK_CUR); |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 453 | err = do_write(fd, attr->id, attr->ids * sizeof(u64)); |
| 454 | if (err < 0) { |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 455 | out_err_write: |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 456 | pr_debug("failed to write perf header\n"); |
| 457 | return err; |
| 458 | } |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 459 | if (session->evlist != evlist) { |
| 460 | err = do_write(fd, pair->id, pair->ids * sizeof(u64)); |
| 461 | if (err < 0) |
| 462 | goto out_err_write; |
| 463 | attr->ids += pair->ids; |
| 464 | pair = list_entry(pair->node.next, struct perf_evsel, node); |
| 465 | } |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 466 | } |
| 467 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 468 | header->attr_offset = lseek(fd, 0, SEEK_CUR); |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 469 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 470 | list_for_each_entry(attr, &evlist->entries, node) { |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 471 | f_attr = (struct perf_file_attr){ |
| 472 | .attr = attr->attr, |
| 473 | .ids = { |
| 474 | .offset = attr->id_offset, |
| 475 | .size = attr->ids * sizeof(u64), |
| 476 | } |
| 477 | }; |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 478 | err = do_write(fd, &f_attr, sizeof(f_attr)); |
| 479 | if (err < 0) { |
| 480 | pr_debug("failed to write perf header attribute\n"); |
| 481 | return err; |
| 482 | } |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 483 | } |
| 484 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 485 | header->event_offset = lseek(fd, 0, SEEK_CUR); |
| 486 | header->event_size = event_count * sizeof(struct perf_trace_event_type); |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 487 | if (events) { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 488 | err = do_write(fd, events, header->event_size); |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 489 | if (err < 0) { |
| 490 | pr_debug("failed to write perf header events\n"); |
| 491 | return err; |
| 492 | } |
| 493 | } |
Arjan van de Ven | 8755a8f | 2009-09-12 07:52:51 +0200 | [diff] [blame] | 494 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 495 | header->data_offset = lseek(fd, 0, SEEK_CUR); |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 496 | |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 497 | if (at_exit) { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 498 | err = perf_header__adds_write(header, evlist, fd); |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 499 | if (err < 0) |
| 500 | return err; |
| 501 | } |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 502 | |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 503 | f_header = (struct perf_file_header){ |
| 504 | .magic = PERF_MAGIC, |
| 505 | .size = sizeof(f_header), |
| 506 | .attr_size = sizeof(f_attr), |
| 507 | .attrs = { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 508 | .offset = header->attr_offset, |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 509 | .size = evlist->nr_entries * sizeof(f_attr), |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 510 | }, |
| 511 | .data = { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 512 | .offset = header->data_offset, |
| 513 | .size = header->data_size, |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 514 | }, |
Arjan van de Ven | 8755a8f | 2009-09-12 07:52:51 +0200 | [diff] [blame] | 515 | .event_types = { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 516 | .offset = header->event_offset, |
| 517 | .size = header->event_size, |
Arjan van de Ven | 8755a8f | 2009-09-12 07:52:51 +0200 | [diff] [blame] | 518 | }, |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 519 | }; |
| 520 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 521 | memcpy(&f_header.adds_features, &header->adds_features, sizeof(header->adds_features)); |
Frederic Weisbecker | 2ba0825 | 2009-10-17 17:12:34 +0200 | [diff] [blame] | 522 | |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 523 | lseek(fd, 0, SEEK_SET); |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 524 | err = do_write(fd, &f_header, sizeof(f_header)); |
| 525 | if (err < 0) { |
| 526 | pr_debug("failed to write perf header\n"); |
| 527 | return err; |
| 528 | } |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 529 | lseek(fd, header->data_offset + header->data_size, SEEK_SET); |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 530 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 531 | header->frozen = 1; |
Arnaldo Carvalho de Melo | d5eed90 | 2009-11-19 14:55:56 -0200 | [diff] [blame] | 532 | return 0; |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 533 | } |
| 534 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 535 | static int perf_header__getbuffer64(struct perf_header *header, |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 536 | int fd, void *buf, size_t size) |
| 537 | { |
Arnaldo Carvalho de Melo | 1e7972c | 2011-01-03 16:50:55 -0200 | [diff] [blame] | 538 | if (readn(fd, buf, size) <= 0) |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 539 | return -1; |
| 540 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 541 | if (header->needs_swap) |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 542 | mem_bswap_64(buf, size); |
| 543 | |
| 544 | return 0; |
| 545 | } |
| 546 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 547 | int perf_header__process_sections(struct perf_header *header, int fd, |
| 548 | int (*process)(struct perf_file_section *section, |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 549 | struct perf_header *ph, |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 550 | int feat, int fd)) |
Frederic Weisbecker | 2ba0825 | 2009-10-17 17:12:34 +0200 | [diff] [blame] | 551 | { |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 552 | struct perf_file_section *feat_sec; |
| 553 | int nr_sections; |
| 554 | int sec_size; |
| 555 | int idx = 0; |
Arnaldo Carvalho de Melo | 769885f | 2009-12-28 22:48:32 -0200 | [diff] [blame] | 556 | int err = -1, feat = 1; |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 557 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 558 | nr_sections = bitmap_weight(header->adds_features, HEADER_FEAT_BITS); |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 559 | if (!nr_sections) |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 560 | return 0; |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 561 | |
| 562 | feat_sec = calloc(sizeof(*feat_sec), nr_sections); |
| 563 | if (!feat_sec) |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 564 | return -1; |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 565 | |
| 566 | sec_size = sizeof(*feat_sec) * nr_sections; |
| 567 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 568 | lseek(fd, header->data_offset + header->data_size, SEEK_SET); |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 569 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 570 | if (perf_header__getbuffer64(header, fd, feat_sec, sec_size)) |
Arnaldo Carvalho de Melo | 769885f | 2009-12-28 22:48:32 -0200 | [diff] [blame] | 571 | goto out_free; |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 572 | |
Arnaldo Carvalho de Melo | 769885f | 2009-12-28 22:48:32 -0200 | [diff] [blame] | 573 | err = 0; |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 574 | while (idx < nr_sections && feat < HEADER_LAST_FEATURE) { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 575 | if (perf_header__has_feat(header, feat)) { |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 576 | struct perf_file_section *sec = &feat_sec[idx++]; |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 577 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 578 | err = process(sec, header, feat, fd); |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 579 | if (err < 0) |
| 580 | break; |
| 581 | } |
| 582 | ++feat; |
Frederic Weisbecker | 4778d2e | 2009-11-11 04:51:05 +0100 | [diff] [blame] | 583 | } |
Arnaldo Carvalho de Melo | 769885f | 2009-12-28 22:48:32 -0200 | [diff] [blame] | 584 | out_free: |
Frederic Weisbecker | 9e827dd | 2009-11-11 04:51:07 +0100 | [diff] [blame] | 585 | free(feat_sec); |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 586 | return err; |
Arnaldo Carvalho de Melo | 769885f | 2009-12-28 22:48:32 -0200 | [diff] [blame] | 587 | } |
Frederic Weisbecker | 2ba0825 | 2009-10-17 17:12:34 +0200 | [diff] [blame] | 588 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 589 | int perf_file_header__read(struct perf_file_header *header, |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 590 | struct perf_header *ph, int fd) |
| 591 | { |
| 592 | lseek(fd, 0, SEEK_SET); |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 593 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 594 | if (readn(fd, header, sizeof(*header)) <= 0 || |
| 595 | memcmp(&header->magic, __perf_magic, sizeof(header->magic))) |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 596 | return -1; |
| 597 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 598 | if (header->attr_size != sizeof(struct perf_file_attr)) { |
| 599 | u64 attr_size = bswap_64(header->attr_size); |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 600 | |
| 601 | if (attr_size != sizeof(struct perf_file_attr)) |
| 602 | return -1; |
| 603 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 604 | mem_bswap_64(header, offsetof(struct perf_file_header, |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 605 | adds_features)); |
| 606 | ph->needs_swap = true; |
| 607 | } |
| 608 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 609 | if (header->size != sizeof(*header)) { |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 610 | /* Support the previous format */ |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 611 | if (header->size == offsetof(typeof(*header), adds_features)) |
| 612 | bitmap_zero(header->adds_features, HEADER_FEAT_BITS); |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 613 | else |
| 614 | return -1; |
| 615 | } |
| 616 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 617 | memcpy(&ph->adds_features, &header->adds_features, |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 618 | sizeof(ph->adds_features)); |
| 619 | /* |
| 620 | * FIXME: hack that assumes that if we need swap the perf.data file |
| 621 | * may be coming from an arch with a different word-size, ergo different |
| 622 | * DEFINE_BITMAP format, investigate more later, but for now its mostly |
| 623 | * safe to assume that we have a build-id section. Trace files probably |
| 624 | * have several other issues in this realm anyway... |
| 625 | */ |
| 626 | if (ph->needs_swap) { |
| 627 | memset(&ph->adds_features, 0, sizeof(ph->adds_features)); |
| 628 | perf_header__set_feat(ph, HEADER_BUILD_ID); |
| 629 | } |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 630 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 631 | ph->event_offset = header->event_types.offset; |
| 632 | ph->event_size = header->event_types.size; |
| 633 | ph->data_offset = header->data.offset; |
| 634 | ph->data_size = header->data.size; |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 635 | return 0; |
| 636 | } |
| 637 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 638 | static int __event_process_build_id(struct build_id_event *bev, |
| 639 | char *filename, |
| 640 | struct perf_session *session) |
| 641 | { |
| 642 | int err = -1; |
| 643 | struct list_head *head; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 644 | struct machine *machine; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 645 | u16 misc; |
| 646 | struct dso *dso; |
| 647 | enum dso_kernel_type dso_type; |
| 648 | |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 649 | machine = perf_session__findnew_machine(session, bev->pid); |
| 650 | if (!machine) |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 651 | goto out; |
| 652 | |
| 653 | misc = bev->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
| 654 | |
| 655 | switch (misc) { |
| 656 | case PERF_RECORD_MISC_KERNEL: |
| 657 | dso_type = DSO_TYPE_KERNEL; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 658 | head = &machine->kernel_dsos; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 659 | break; |
| 660 | case PERF_RECORD_MISC_GUEST_KERNEL: |
| 661 | dso_type = DSO_TYPE_GUEST_KERNEL; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 662 | head = &machine->kernel_dsos; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 663 | break; |
| 664 | case PERF_RECORD_MISC_USER: |
| 665 | case PERF_RECORD_MISC_GUEST_USER: |
| 666 | dso_type = DSO_TYPE_USER; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 667 | head = &machine->user_dsos; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 668 | break; |
| 669 | default: |
| 670 | goto out; |
| 671 | } |
| 672 | |
| 673 | dso = __dsos__findnew(head, filename); |
| 674 | if (dso != NULL) { |
Tom Zanussi | 454c407 | 2010-05-01 01:41:20 -0500 | [diff] [blame] | 675 | char sbuild_id[BUILD_ID_SIZE * 2 + 1]; |
| 676 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 677 | dso__set_build_id(dso, &bev->build_id); |
Tom Zanussi | 454c407 | 2010-05-01 01:41:20 -0500 | [diff] [blame] | 678 | |
| 679 | if (filename[0] == '[') |
| 680 | dso->kernel = dso_type; |
| 681 | |
| 682 | build_id__sprintf(dso->build_id, sizeof(dso->build_id), |
| 683 | sbuild_id); |
| 684 | pr_debug("build id event received for %s: %s\n", |
| 685 | dso->long_name, sbuild_id); |
| 686 | } |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 687 | |
| 688 | err = 0; |
| 689 | out: |
| 690 | return err; |
| 691 | } |
| 692 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 693 | static int perf_header__read_build_ids(struct perf_header *header, |
| 694 | int input, u64 offset, u64 size) |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 695 | { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 696 | struct perf_session *session = container_of(header, struct perf_session, header); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 697 | struct build_id_event bev; |
| 698 | char filename[PATH_MAX]; |
| 699 | u64 limit = offset + size; |
| 700 | int err = -1; |
| 701 | |
| 702 | while (offset < limit) { |
| 703 | ssize_t len; |
| 704 | |
| 705 | if (read(input, &bev, sizeof(bev)) != sizeof(bev)) |
| 706 | goto out; |
| 707 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 708 | if (header->needs_swap) |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 709 | perf_event_header__bswap(&bev.header); |
| 710 | |
| 711 | len = bev.header.size - sizeof(bev); |
| 712 | if (read(input, filename, len) != len) |
| 713 | goto out; |
| 714 | |
| 715 | __event_process_build_id(&bev, filename, session); |
| 716 | |
| 717 | offset += bev.header.size; |
| 718 | } |
| 719 | err = 0; |
| 720 | out: |
| 721 | return err; |
| 722 | } |
| 723 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 724 | static int perf_file_section__process(struct perf_file_section *section, |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 725 | struct perf_header *ph, |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 726 | int feat, int fd) |
| 727 | { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 728 | if (lseek(fd, section->offset, SEEK_SET) == (off_t)-1) { |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 729 | pr_debug("Failed to lseek to %" PRIu64 " offset for feature " |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 730 | "%d, continuing...\n", section->offset, feat); |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 731 | return 0; |
| 732 | } |
| 733 | |
| 734 | switch (feat) { |
| 735 | case HEADER_TRACE_INFO: |
Tom Zanussi | 454c407 | 2010-05-01 01:41:20 -0500 | [diff] [blame] | 736 | trace_report(fd, false); |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 737 | break; |
| 738 | |
| 739 | case HEADER_BUILD_ID: |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 740 | if (perf_header__read_build_ids(ph, fd, section->offset, section->size)) |
Arnaldo Carvalho de Melo | 37562ea | 2009-11-16 16:32:43 -0200 | [diff] [blame] | 741 | pr_debug("Failed to read buildids, continuing...\n"); |
| 742 | break; |
| 743 | default: |
| 744 | pr_debug("unknown feature %d, continuing...\n", feat); |
| 745 | } |
| 746 | |
| 747 | return 0; |
| 748 | } |
| 749 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 750 | static int perf_file_header__read_pipe(struct perf_pipe_file_header *header, |
Tom Zanussi | 454c407 | 2010-05-01 01:41:20 -0500 | [diff] [blame] | 751 | struct perf_header *ph, int fd, |
| 752 | bool repipe) |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 753 | { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 754 | if (readn(fd, header, sizeof(*header)) <= 0 || |
| 755 | memcmp(&header->magic, __perf_magic, sizeof(header->magic))) |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 756 | return -1; |
| 757 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 758 | if (repipe && do_write(STDOUT_FILENO, header, sizeof(*header)) < 0) |
Tom Zanussi | 454c407 | 2010-05-01 01:41:20 -0500 | [diff] [blame] | 759 | return -1; |
| 760 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 761 | if (header->size != sizeof(*header)) { |
| 762 | u64 size = bswap_64(header->size); |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 763 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 764 | if (size != sizeof(*header)) |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 765 | return -1; |
| 766 | |
| 767 | ph->needs_swap = true; |
| 768 | } |
| 769 | |
| 770 | return 0; |
| 771 | } |
| 772 | |
| 773 | static int perf_header__read_pipe(struct perf_session *session, int fd) |
| 774 | { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 775 | struct perf_header *header = &session->header; |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 776 | struct perf_pipe_file_header f_header; |
| 777 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 778 | if (perf_file_header__read_pipe(&f_header, header, fd, |
Tom Zanussi | 454c407 | 2010-05-01 01:41:20 -0500 | [diff] [blame] | 779 | session->repipe) < 0) { |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 780 | pr_debug("incompatible file format\n"); |
| 781 | return -EINVAL; |
| 782 | } |
| 783 | |
| 784 | session->fd = fd; |
| 785 | |
| 786 | return 0; |
| 787 | } |
| 788 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 789 | int perf_session__read_header(struct perf_session *session, int fd) |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 790 | { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 791 | struct perf_header *header = &session->header; |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 792 | struct perf_file_header f_header; |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 793 | struct perf_file_attr f_attr; |
| 794 | u64 f_id; |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 795 | int nr_attrs, nr_ids, i, j; |
| 796 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 797 | session->evlist = perf_evlist__new(NULL, NULL); |
| 798 | if (session->evlist == NULL) |
| 799 | return -ENOMEM; |
| 800 | |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 801 | if (session->fd_pipe) |
| 802 | return perf_header__read_pipe(session, fd); |
| 803 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 804 | if (perf_file_header__read(&f_header, header, fd) < 0) { |
Arnaldo Carvalho de Melo | 4dc0a04 | 2009-11-19 14:55:55 -0200 | [diff] [blame] | 805 | pr_debug("incompatible file format\n"); |
| 806 | return -EINVAL; |
| 807 | } |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 808 | |
| 809 | nr_attrs = f_header.attrs.size / sizeof(f_attr); |
| 810 | lseek(fd, f_header.attrs.offset, SEEK_SET); |
| 811 | |
| 812 | for (i = 0; i < nr_attrs; i++) { |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 813 | struct perf_evsel *evsel; |
Peter Zijlstra | 1c222bc | 2009-08-06 20:57:41 +0200 | [diff] [blame] | 814 | off_t tmp; |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 815 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 816 | if (perf_header__getbuffer64(header, fd, &f_attr, sizeof(f_attr))) |
Arnaldo Carvalho de Melo | 769885f | 2009-12-28 22:48:32 -0200 | [diff] [blame] | 817 | goto out_errno; |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 818 | |
Peter Zijlstra | 1c222bc | 2009-08-06 20:57:41 +0200 | [diff] [blame] | 819 | tmp = lseek(fd, 0, SEEK_CUR); |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 820 | evsel = perf_evsel__new(&f_attr.attr, i); |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 821 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 822 | if (evsel == NULL) |
| 823 | goto out_delete_evlist; |
| 824 | /* |
| 825 | * Do it before so that if perf_evsel__alloc_id fails, this |
| 826 | * entry gets purged too at perf_evlist__delete(). |
| 827 | */ |
| 828 | perf_evlist__add(session->evlist, evsel); |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 829 | |
| 830 | nr_ids = f_attr.ids.size / sizeof(u64); |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 831 | /* |
| 832 | * We don't have the cpu and thread maps on the header, so |
| 833 | * for allocating the perf_sample_id table we fake 1 cpu and |
| 834 | * hattr->ids threads. |
| 835 | */ |
| 836 | if (perf_evsel__alloc_id(evsel, 1, nr_ids)) |
| 837 | goto out_delete_evlist; |
| 838 | |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 839 | lseek(fd, f_attr.ids.offset, SEEK_SET); |
| 840 | |
| 841 | for (j = 0; j < nr_ids; j++) { |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 842 | if (perf_header__getbuffer64(header, fd, &f_id, sizeof(f_id))) |
Arnaldo Carvalho de Melo | 769885f | 2009-12-28 22:48:32 -0200 | [diff] [blame] | 843 | goto out_errno; |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 844 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 845 | perf_evlist__id_add(session->evlist, evsel, 0, j, f_id); |
Arnaldo Carvalho de Melo | 4dc0a04 | 2009-11-19 14:55:55 -0200 | [diff] [blame] | 846 | } |
Arnaldo Carvalho de Melo | 11deb1f | 2009-11-17 01:18:09 -0200 | [diff] [blame] | 847 | |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 848 | lseek(fd, tmp, SEEK_SET); |
| 849 | } |
| 850 | |
Arjan van de Ven | 8755a8f | 2009-09-12 07:52:51 +0200 | [diff] [blame] | 851 | if (f_header.event_types.size) { |
| 852 | lseek(fd, f_header.event_types.offset, SEEK_SET); |
| 853 | events = malloc(f_header.event_types.size); |
Arnaldo Carvalho de Melo | 4dc0a04 | 2009-11-19 14:55:55 -0200 | [diff] [blame] | 854 | if (events == NULL) |
| 855 | return -ENOMEM; |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 856 | if (perf_header__getbuffer64(header, fd, events, |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 857 | f_header.event_types.size)) |
Arnaldo Carvalho de Melo | 769885f | 2009-12-28 22:48:32 -0200 | [diff] [blame] | 858 | goto out_errno; |
Arjan van de Ven | 8755a8f | 2009-09-12 07:52:51 +0200 | [diff] [blame] | 859 | event_count = f_header.event_types.size / sizeof(struct perf_trace_event_type); |
| 860 | } |
Frederic Weisbecker | 03456a1 | 2009-10-06 23:36:47 +0200 | [diff] [blame] | 861 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 862 | perf_header__process_sections(header, fd, perf_file_section__process); |
Frederic Weisbecker | 4778d2e | 2009-11-11 04:51:05 +0100 | [diff] [blame] | 863 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 864 | lseek(fd, header->data_offset, SEEK_SET); |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 865 | |
Arnaldo Carvalho de Melo | 1c0b04d | 2011-03-09 08:13:19 -0300 | [diff] [blame^] | 866 | header->frozen = 1; |
Arnaldo Carvalho de Melo | 4dc0a04 | 2009-11-19 14:55:55 -0200 | [diff] [blame] | 867 | return 0; |
Arnaldo Carvalho de Melo | 769885f | 2009-12-28 22:48:32 -0200 | [diff] [blame] | 868 | out_errno: |
| 869 | return -errno; |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 870 | |
| 871 | out_delete_evlist: |
| 872 | perf_evlist__delete(session->evlist); |
| 873 | session->evlist = NULL; |
| 874 | return -ENOMEM; |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 875 | } |
Frederic Weisbecker | 0d3a5c8 | 2009-08-16 20:56:37 +0200 | [diff] [blame] | 876 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 877 | u64 perf_evlist__sample_type(struct perf_evlist *evlist) |
Frederic Weisbecker | 0d3a5c8 | 2009-08-16 20:56:37 +0200 | [diff] [blame] | 878 | { |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 879 | struct perf_evsel *pos; |
Frederic Weisbecker | 0d3a5c8 | 2009-08-16 20:56:37 +0200 | [diff] [blame] | 880 | u64 type = 0; |
Frederic Weisbecker | 0d3a5c8 | 2009-08-16 20:56:37 +0200 | [diff] [blame] | 881 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 882 | list_for_each_entry(pos, &evlist->entries, node) { |
Frederic Weisbecker | 0d3a5c8 | 2009-08-16 20:56:37 +0200 | [diff] [blame] | 883 | if (!type) |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 884 | type = pos->attr.sample_type; |
| 885 | else if (type != pos->attr.sample_type) |
Frederic Weisbecker | 0d3a5c8 | 2009-08-16 20:56:37 +0200 | [diff] [blame] | 886 | die("non matching sample_type"); |
| 887 | } |
| 888 | |
| 889 | return type; |
| 890 | } |
| 891 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 892 | bool perf_evlist__sample_id_all(const struct perf_evlist *evlist) |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 893 | { |
| 894 | bool value = false, first = true; |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 895 | struct perf_evsel *pos; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 896 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 897 | list_for_each_entry(pos, &evlist->entries, node) { |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 898 | if (first) { |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 899 | value = pos->attr.sample_id_all; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 900 | first = false; |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 901 | } else if (value != pos->attr.sample_id_all) |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 902 | die("non matching sample_id_all"); |
| 903 | } |
| 904 | |
| 905 | return value; |
| 906 | } |
| 907 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 908 | int perf_event__synthesize_attr(struct perf_event_attr *attr, u16 ids, u64 *id, |
| 909 | perf_event__handler_t process, |
| 910 | struct perf_session *session) |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 911 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 912 | union perf_event *ev; |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 913 | size_t size; |
| 914 | int err; |
| 915 | |
| 916 | size = sizeof(struct perf_event_attr); |
| 917 | size = ALIGN(size, sizeof(u64)); |
| 918 | size += sizeof(struct perf_event_header); |
| 919 | size += ids * sizeof(u64); |
| 920 | |
| 921 | ev = malloc(size); |
| 922 | |
Chris Samuel | ce47dc5 | 2010-11-13 13:35:06 +1100 | [diff] [blame] | 923 | if (ev == NULL) |
| 924 | return -ENOMEM; |
| 925 | |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 926 | ev->attr.attr = *attr; |
| 927 | memcpy(ev->attr.id, id, ids * sizeof(u64)); |
| 928 | |
| 929 | ev->attr.header.type = PERF_RECORD_HEADER_ATTR; |
| 930 | ev->attr.header.size = size; |
| 931 | |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 932 | err = process(ev, NULL, session); |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 933 | |
| 934 | free(ev); |
| 935 | |
| 936 | return err; |
| 937 | } |
| 938 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 939 | int perf_session__synthesize_attrs(struct perf_session *session, |
| 940 | perf_event__handler_t process) |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 941 | { |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 942 | struct perf_evsel *attr; |
| 943 | int err = 0; |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 944 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 945 | list_for_each_entry(attr, &session->evlist->entries, node) { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 946 | err = perf_event__synthesize_attr(&attr->attr, attr->ids, |
| 947 | attr->id, process, session); |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 948 | if (err) { |
| 949 | pr_debug("failed to create perf header attribute\n"); |
| 950 | return err; |
| 951 | } |
| 952 | } |
| 953 | |
| 954 | return err; |
| 955 | } |
| 956 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 957 | int perf_event__process_attr(union perf_event *event, |
| 958 | struct perf_session *session) |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 959 | { |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 960 | unsigned int i, ids, n_ids; |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 961 | struct perf_evsel *evsel; |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 962 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 963 | if (session->evlist == NULL) { |
| 964 | session->evlist = perf_evlist__new(NULL, NULL); |
| 965 | if (session->evlist == NULL) |
| 966 | return -ENOMEM; |
| 967 | } |
| 968 | |
| 969 | evsel = perf_evsel__new(&event->attr.attr, |
| 970 | session->evlist->nr_entries); |
| 971 | if (evsel == NULL) |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 972 | return -ENOMEM; |
| 973 | |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 974 | perf_evlist__add(session->evlist, evsel); |
| 975 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 976 | ids = event->header.size; |
| 977 | ids -= (void *)&event->attr.id - (void *)event; |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 978 | n_ids = ids / sizeof(u64); |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 979 | /* |
| 980 | * We don't have the cpu and thread maps on the header, so |
| 981 | * for allocating the perf_sample_id table we fake 1 cpu and |
| 982 | * hattr->ids threads. |
| 983 | */ |
| 984 | if (perf_evsel__alloc_id(evsel, 1, n_ids)) |
| 985 | return -ENOMEM; |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 986 | |
| 987 | for (i = 0; i < n_ids; i++) { |
Arnaldo Carvalho de Melo | a91e543 | 2011-03-10 11:15:54 -0300 | [diff] [blame] | 988 | perf_evlist__id_add(session->evlist, evsel, 0, i, |
| 989 | event->attr.id[i]); |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 990 | } |
| 991 | |
| 992 | perf_session__update_sample_type(session); |
| 993 | |
| 994 | return 0; |
| 995 | } |
Tom Zanussi | cd19a03 | 2010-04-01 23:59:20 -0500 | [diff] [blame] | 996 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 997 | int perf_event__synthesize_event_type(u64 event_id, char *name, |
| 998 | perf_event__handler_t process, |
| 999 | struct perf_session *session) |
Tom Zanussi | cd19a03 | 2010-04-01 23:59:20 -0500 | [diff] [blame] | 1000 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1001 | union perf_event ev; |
Tom Zanussi | cd19a03 | 2010-04-01 23:59:20 -0500 | [diff] [blame] | 1002 | size_t size = 0; |
| 1003 | int err = 0; |
| 1004 | |
| 1005 | memset(&ev, 0, sizeof(ev)); |
| 1006 | |
| 1007 | ev.event_type.event_type.event_id = event_id; |
| 1008 | memset(ev.event_type.event_type.name, 0, MAX_EVENT_NAME); |
| 1009 | strncpy(ev.event_type.event_type.name, name, MAX_EVENT_NAME - 1); |
| 1010 | |
| 1011 | ev.event_type.header.type = PERF_RECORD_HEADER_EVENT_TYPE; |
| 1012 | size = strlen(name); |
| 1013 | size = ALIGN(size, sizeof(u64)); |
| 1014 | ev.event_type.header.size = sizeof(ev.event_type) - |
| 1015 | (sizeof(ev.event_type.event_type.name) - size); |
| 1016 | |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 1017 | err = process(&ev, NULL, session); |
Tom Zanussi | cd19a03 | 2010-04-01 23:59:20 -0500 | [diff] [blame] | 1018 | |
| 1019 | return err; |
| 1020 | } |
| 1021 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1022 | int perf_event__synthesize_event_types(perf_event__handler_t process, |
| 1023 | struct perf_session *session) |
Tom Zanussi | cd19a03 | 2010-04-01 23:59:20 -0500 | [diff] [blame] | 1024 | { |
| 1025 | struct perf_trace_event_type *type; |
| 1026 | int i, err = 0; |
| 1027 | |
| 1028 | for (i = 0; i < event_count; i++) { |
| 1029 | type = &events[i]; |
| 1030 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1031 | err = perf_event__synthesize_event_type(type->event_id, |
| 1032 | type->name, process, |
| 1033 | session); |
Tom Zanussi | cd19a03 | 2010-04-01 23:59:20 -0500 | [diff] [blame] | 1034 | if (err) { |
| 1035 | pr_debug("failed to create perf header event type\n"); |
| 1036 | return err; |
| 1037 | } |
| 1038 | } |
| 1039 | |
| 1040 | return err; |
| 1041 | } |
| 1042 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1043 | int perf_event__process_event_type(union perf_event *event, |
| 1044 | struct perf_session *session __unused) |
Tom Zanussi | cd19a03 | 2010-04-01 23:59:20 -0500 | [diff] [blame] | 1045 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1046 | if (perf_header__push_event(event->event_type.event_type.event_id, |
| 1047 | event->event_type.event_type.name) < 0) |
Tom Zanussi | cd19a03 | 2010-04-01 23:59:20 -0500 | [diff] [blame] | 1048 | return -ENOMEM; |
| 1049 | |
| 1050 | return 0; |
| 1051 | } |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 1052 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1053 | int perf_event__synthesize_tracing_data(int fd, struct perf_evlist *evlist, |
| 1054 | perf_event__handler_t process, |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 1055 | struct perf_session *session __unused) |
| 1056 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1057 | union perf_event ev; |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 1058 | ssize_t size = 0, aligned_size = 0, padding; |
Kyle McMartin | fb7d0b3 | 2011-01-24 11:13:04 -0500 | [diff] [blame] | 1059 | int err __used = 0; |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 1060 | |
| 1061 | memset(&ev, 0, sizeof(ev)); |
| 1062 | |
| 1063 | ev.tracing_data.header.type = PERF_RECORD_HEADER_TRACING_DATA; |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 1064 | size = read_tracing_data_size(fd, &evlist->entries); |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 1065 | if (size <= 0) |
| 1066 | return size; |
| 1067 | aligned_size = ALIGN(size, sizeof(u64)); |
| 1068 | padding = aligned_size - size; |
| 1069 | ev.tracing_data.header.size = sizeof(ev.tracing_data); |
| 1070 | ev.tracing_data.size = aligned_size; |
| 1071 | |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 1072 | process(&ev, NULL, session); |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 1073 | |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 1074 | err = read_tracing_data(fd, &evlist->entries); |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 1075 | write_padded(fd, NULL, 0, padding); |
| 1076 | |
| 1077 | return aligned_size; |
| 1078 | } |
| 1079 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1080 | int perf_event__process_tracing_data(union perf_event *event, |
| 1081 | struct perf_session *session) |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 1082 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1083 | ssize_t size_read, padding, size = event->tracing_data.size; |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 1084 | off_t offset = lseek(session->fd, 0, SEEK_CUR); |
| 1085 | char buf[BUFSIZ]; |
| 1086 | |
| 1087 | /* setup for reading amidst mmap */ |
| 1088 | lseek(session->fd, offset + sizeof(struct tracing_data_event), |
| 1089 | SEEK_SET); |
| 1090 | |
Tom Zanussi | 454c407 | 2010-05-01 01:41:20 -0500 | [diff] [blame] | 1091 | size_read = trace_report(session->fd, session->repipe); |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 1092 | |
| 1093 | padding = ALIGN(size_read, sizeof(u64)) - size_read; |
| 1094 | |
| 1095 | if (read(session->fd, buf, padding) < 0) |
| 1096 | die("reading input file"); |
Tom Zanussi | 454c407 | 2010-05-01 01:41:20 -0500 | [diff] [blame] | 1097 | if (session->repipe) { |
| 1098 | int retw = write(STDOUT_FILENO, buf, padding); |
| 1099 | if (retw <= 0 || retw != padding) |
| 1100 | die("repiping tracing data padding"); |
| 1101 | } |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 1102 | |
| 1103 | if (size_read + padding != size) |
| 1104 | die("tracing data size mismatch"); |
| 1105 | |
| 1106 | return size_read + padding; |
| 1107 | } |
Tom Zanussi | c7929e4 | 2010-04-01 23:59:22 -0500 | [diff] [blame] | 1108 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1109 | int perf_event__synthesize_build_id(struct dso *pos, u16 misc, |
| 1110 | perf_event__handler_t process, |
| 1111 | struct machine *machine, |
| 1112 | struct perf_session *session) |
Tom Zanussi | c7929e4 | 2010-04-01 23:59:22 -0500 | [diff] [blame] | 1113 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1114 | union perf_event ev; |
Tom Zanussi | c7929e4 | 2010-04-01 23:59:22 -0500 | [diff] [blame] | 1115 | size_t len; |
| 1116 | int err = 0; |
| 1117 | |
| 1118 | if (!pos->hit) |
| 1119 | return err; |
| 1120 | |
| 1121 | memset(&ev, 0, sizeof(ev)); |
| 1122 | |
| 1123 | len = pos->long_name_len + 1; |
| 1124 | len = ALIGN(len, NAME_ALIGN); |
| 1125 | memcpy(&ev.build_id.build_id, pos->build_id, sizeof(pos->build_id)); |
| 1126 | ev.build_id.header.type = PERF_RECORD_HEADER_BUILD_ID; |
| 1127 | ev.build_id.header.misc = misc; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 1128 | ev.build_id.pid = machine->pid; |
Tom Zanussi | c7929e4 | 2010-04-01 23:59:22 -0500 | [diff] [blame] | 1129 | ev.build_id.header.size = sizeof(ev.build_id) + len; |
| 1130 | memcpy(&ev.build_id.filename, pos->long_name, pos->long_name_len); |
| 1131 | |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 1132 | err = process(&ev, NULL, session); |
Tom Zanussi | c7929e4 | 2010-04-01 23:59:22 -0500 | [diff] [blame] | 1133 | |
| 1134 | return err; |
| 1135 | } |
| 1136 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1137 | int perf_event__process_build_id(union perf_event *event, |
| 1138 | struct perf_session *session) |
Tom Zanussi | c7929e4 | 2010-04-01 23:59:22 -0500 | [diff] [blame] | 1139 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1140 | __event_process_build_id(&event->build_id, |
| 1141 | event->build_id.filename, |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1142 | session); |
Tom Zanussi | c7929e4 | 2010-04-01 23:59:22 -0500 | [diff] [blame] | 1143 | return 0; |
| 1144 | } |
Stephane Eranian | a1ac1d3 | 2010-06-17 11:39:01 +0200 | [diff] [blame] | 1145 | |
| 1146 | void disable_buildid_cache(void) |
| 1147 | { |
| 1148 | no_buildid_cache = true; |
| 1149 | } |