blob: 6df95c2698c62981094b345b991b0190e36684eb [file] [log] [blame]
Ingo Molnar53cb8bc2009-05-26 09:17:18 +02001#include "util/util.h"
Ingo Molnar16f762a2009-05-27 09:10:38 +02002#include "builtin.h"
Ingo Molnar53cb8bc2009-05-26 09:17:18 +02003
4#include <libelf.h>
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -03005#include <gelf.h>
6#include <elf.h>
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03007
Arnaldo Carvalho de Melo35a50c82009-05-18 16:24:49 -03008#include "util/list.h"
Ingo Molnara930d2c2009-05-27 09:50:13 +02009#include "util/cache.h"
Arnaldo Carvalho de Melo35a50c82009-05-18 16:24:49 -030010#include "util/rbtree.h"
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030011
Ingo Molnar53cb8bc2009-05-26 09:17:18 +020012#include "perf.h"
13
14#include "util/parse-options.h"
15#include "util/parse-events.h"
16
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030017#define SHOW_KERNEL 1
18#define SHOW_USER 2
19#define SHOW_HV 4
20
Ingo Molnar23ac9cb2009-05-27 09:33:18 +020021static char const *input_name = "perf.data";
Peter Zijlstra450aaa22009-05-27 20:20:23 +020022static char *vmlinux = NULL;
Peter Zijlstra37f440c2009-05-27 20:20:26 +020023static char *sort_order = "pid,symbol";
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030024static int input;
25static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV;
26
Ingo Molnar97b07b62009-05-26 18:48:58 +020027static int dump_trace = 0;
Ingo Molnar16f762a2009-05-27 09:10:38 +020028static int verbose;
Ingo Molnar97b07b62009-05-26 18:48:58 +020029
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030030static unsigned long page_size;
31static unsigned long mmap_window = 32;
32
Ingo Molnar53cb8bc2009-05-26 09:17:18 +020033const char *perf_event_names[] = {
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030034 [PERF_EVENT_MMAP] = " PERF_EVENT_MMAP",
35 [PERF_EVENT_MUNMAP] = " PERF_EVENT_MUNMAP",
36 [PERF_EVENT_COMM] = " PERF_EVENT_COMM",
37};
38
39struct ip_event {
40 struct perf_event_header header;
41 __u64 ip;
42 __u32 pid, tid;
43};
44struct mmap_event {
45 struct perf_event_header header;
46 __u32 pid, tid;
47 __u64 start;
48 __u64 len;
49 __u64 pgoff;
50 char filename[PATH_MAX];
51};
52struct comm_event {
53 struct perf_event_header header;
54 __u32 pid,tid;
55 char comm[16];
56};
57
58typedef union event_union {
59 struct perf_event_header header;
60 struct ip_event ip;
61 struct mmap_event mmap;
62 struct comm_event comm;
63} event_t;
64
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030065struct symbol {
Ingo Molnar16f762a2009-05-27 09:10:38 +020066 struct rb_node rb_node;
67 __u64 start;
68 __u64 end;
69 char name[0];
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030070};
71
72static struct symbol *symbol__new(uint64_t start, uint64_t len, const char *name)
73{
74 struct symbol *self = malloc(sizeof(*self) + strlen(name) + 1);
75
76 if (self != NULL) {
77 self->start = start;
78 self->end = start + len;
79 strcpy(self->name, name);
80 }
81
82 return self;
83}
84
85static void symbol__delete(struct symbol *self)
86{
87 free(self);
88}
89
90static size_t symbol__fprintf(struct symbol *self, FILE *fp)
91{
Ingo Molnar16f762a2009-05-27 09:10:38 +020092 return fprintf(fp, " %llx-%llx %s\n",
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030093 self->start, self->end, self->name);
94}
95
96struct dso {
97 struct list_head node;
Arnaldo Carvalho de Melo35a50c82009-05-18 16:24:49 -030098 struct rb_root syms;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -030099 char name[0];
100};
101
102static struct dso *dso__new(const char *name)
103{
104 struct dso *self = malloc(sizeof(*self) + strlen(name) + 1);
105
106 if (self != NULL) {
107 strcpy(self->name, name);
Arnaldo Carvalho de Melo35a50c82009-05-18 16:24:49 -0300108 self->syms = RB_ROOT;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300109 }
110
111 return self;
112}
113
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300114static void dso__delete_symbols(struct dso *self)
115{
Arnaldo Carvalho de Melo35a50c82009-05-18 16:24:49 -0300116 struct symbol *pos;
117 struct rb_node *next = rb_first(&self->syms);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300118
Arnaldo Carvalho de Melo35a50c82009-05-18 16:24:49 -0300119 while (next) {
120 pos = rb_entry(next, struct symbol, rb_node);
121 next = rb_next(&pos->rb_node);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300122 symbol__delete(pos);
Arnaldo Carvalho de Melo35a50c82009-05-18 16:24:49 -0300123 }
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300124}
125
126static void dso__delete(struct dso *self)
127{
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300128 dso__delete_symbols(self);
129 free(self);
130}
131
132static void dso__insert_symbol(struct dso *self, struct symbol *sym)
133{
Arnaldo Carvalho de Melo35a50c82009-05-18 16:24:49 -0300134 struct rb_node **p = &self->syms.rb_node;
135 struct rb_node *parent = NULL;
136 const uint64_t ip = sym->start;
137 struct symbol *s;
138
139 while (*p != NULL) {
140 parent = *p;
141 s = rb_entry(parent, struct symbol, rb_node);
142 if (ip < s->start)
143 p = &(*p)->rb_left;
144 else
145 p = &(*p)->rb_right;
146 }
147 rb_link_node(&sym->rb_node, parent, p);
148 rb_insert_color(&sym->rb_node, &self->syms);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300149}
150
151static struct symbol *dso__find_symbol(struct dso *self, uint64_t ip)
152{
Ingo Molnar16f762a2009-05-27 09:10:38 +0200153 struct rb_node *n;
154
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300155 if (self == NULL)
156 return NULL;
157
Ingo Molnar16f762a2009-05-27 09:10:38 +0200158 n = self->syms.rb_node;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300159
Arnaldo Carvalho de Melo35a50c82009-05-18 16:24:49 -0300160 while (n) {
161 struct symbol *s = rb_entry(n, struct symbol, rb_node);
162
163 if (ip < s->start)
164 n = n->rb_left;
165 else if (ip > s->end)
166 n = n->rb_right;
167 else
168 return s;
169 }
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300170
171 return NULL;
172}
173
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300174/**
175 * elf_symtab__for_each_symbol - iterate thru all the symbols
176 *
177 * @self: struct elf_symtab instance to iterate
178 * @index: uint32_t index
179 * @sym: GElf_Sym iterator
180 */
181#define elf_symtab__for_each_symbol(syms, nr_syms, index, sym) \
182 for (index = 0, gelf_getsym(syms, index, &sym);\
183 index < nr_syms; \
184 index++, gelf_getsym(syms, index, &sym))
185
186static inline uint8_t elf_sym__type(const GElf_Sym *sym)
187{
188 return GELF_ST_TYPE(sym->st_info);
189}
190
Ingo Molnar53cb8bc2009-05-26 09:17:18 +0200191static inline int elf_sym__is_function(const GElf_Sym *sym)
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300192{
193 return elf_sym__type(sym) == STT_FUNC &&
194 sym->st_name != 0 &&
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +0200195 sym->st_shndx != SHN_UNDEF &&
196 sym->st_size != 0;
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300197}
198
199static inline const char *elf_sym__name(const GElf_Sym *sym,
200 const Elf_Data *symstrs)
201{
202 return symstrs->d_buf + sym->st_name;
203}
204
205static Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,
206 GElf_Shdr *shp, const char *name,
207 size_t *index)
208{
209 Elf_Scn *sec = NULL;
210 size_t cnt = 1;
211
212 while ((sec = elf_nextscn(elf, sec)) != NULL) {
213 char *str;
214
215 gelf_getshdr(sec, shp);
216 str = elf_strptr(elf, ep->e_shstrndx, shp->sh_name);
217 if (!strcmp(name, str)) {
218 if (index)
219 *index = cnt;
220 break;
221 }
222 ++cnt;
223 }
224
225 return sec;
226}
227
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +0200228static int dso__load_sym(struct dso *self, int fd, char *name)
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300229{
Ingo Molnar16f762a2009-05-27 09:10:38 +0200230 Elf_Data *symstrs;
231 uint32_t nr_syms;
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +0200232 int err = -1;
Ingo Molnar16f762a2009-05-27 09:10:38 +0200233 uint32_t index;
234 GElf_Ehdr ehdr;
235 GElf_Shdr shdr;
236 Elf_Data *syms;
237 GElf_Sym sym;
238 Elf_Scn *sec;
239 Elf *elf;
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +0200240 int nr = 0;
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300241
Ingo Molnar16f762a2009-05-27 09:10:38 +0200242 elf = elf_begin(fd, ELF_C_READ_MMAP, NULL);
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300243 if (elf == NULL) {
244 fprintf(stderr, "%s: cannot read %s ELF file.\n",
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +0200245 __func__, name);
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300246 goto out_close;
247 }
248
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300249 if (gelf_getehdr(elf, &ehdr) == NULL) {
250 fprintf(stderr, "%s: cannot get elf header.\n", __func__);
251 goto out_elf_end;
252 }
253
Ingo Molnar16f762a2009-05-27 09:10:38 +0200254 sec = elf_section_by_name(elf, &ehdr, &shdr, ".symtab", NULL);
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300255 if (sec == NULL)
256 sec = elf_section_by_name(elf, &ehdr, &shdr, ".dynsym", NULL);
257
258 if (sec == NULL)
259 goto out_elf_end;
260
Ingo Molnar16f762a2009-05-27 09:10:38 +0200261 syms = elf_getdata(sec, NULL);
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300262 if (syms == NULL)
263 goto out_elf_end;
264
265 sec = elf_getscn(elf, shdr.sh_link);
266 if (sec == NULL)
267 goto out_elf_end;
268
Ingo Molnar16f762a2009-05-27 09:10:38 +0200269 symstrs = elf_getdata(sec, NULL);
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300270 if (symstrs == NULL)
271 goto out_elf_end;
272
Ingo Molnar16f762a2009-05-27 09:10:38 +0200273 nr_syms = shdr.sh_size / shdr.sh_entsize;
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300274
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300275 elf_symtab__for_each_symbol(syms, nr_syms, index, sym) {
Peter Zijlstraf17e04a2009-05-26 15:30:22 +0200276 struct symbol *f;
277
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300278 if (!elf_sym__is_function(&sym))
279 continue;
Peter Zijlstraf17e04a2009-05-26 15:30:22 +0200280
281 sec = elf_getscn(elf, sym.st_shndx);
282 if (!sec)
283 goto out_elf_end;
284
285 gelf_getshdr(sec, &shdr);
286 sym.st_value -= shdr.sh_addr - shdr.sh_offset;
287
288 f = symbol__new(sym.st_value, sym.st_size,
289 elf_sym__name(&sym, symstrs));
290 if (!f)
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300291 goto out_elf_end;
292
293 dso__insert_symbol(self, f);
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +0200294
295 nr++;
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300296 }
297
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +0200298 err = nr;
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300299out_elf_end:
300 elf_end(elf);
301out_close:
Arnaldo Carvalho de Melo62eb9392009-05-18 14:28:47 -0300302 return err;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300303}
304
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +0200305static int dso__load(struct dso *self)
306{
307 int size = strlen(self->name) + sizeof("/usr/lib/debug%s.debug");
308 char *name = malloc(size);
309 int variant = 0;
310 int ret = -1;
311 int fd;
312
313 if (!name)
314 return -1;
315
316more:
317 do {
318 switch (variant) {
319 case 0: /* Fedora */
320 snprintf(name, size, "/usr/lib/debug%s.debug", self->name);
321 break;
322 case 1: /* Ubuntu */
323 snprintf(name, size, "/usr/lib/debug%s", self->name);
324 break;
325 case 2: /* Sane people */
326 snprintf(name, size, "%s", self->name);
327 break;
328
329 default:
330 goto out;
331 }
332 variant++;
333
334 fd = open(name, O_RDONLY);
335 } while (fd < 0);
336
337 ret = dso__load_sym(self, fd, name);
338 close(fd);
339
340 /*
341 * Some people seem to have debuginfo files _WITHOUT_ debug info!?!?
342 */
343 if (!ret)
344 goto more;
345
346out:
347 free(name);
348 return ret;
349}
350
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300351static size_t dso__fprintf(struct dso *self, FILE *fp)
352{
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300353 size_t ret = fprintf(fp, "dso: %s\n", self->name);
354
Arnaldo Carvalho de Melo35a50c82009-05-18 16:24:49 -0300355 struct rb_node *nd;
356 for (nd = rb_first(&self->syms); nd; nd = rb_next(nd)) {
357 struct symbol *pos = rb_entry(nd, struct symbol, rb_node);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300358 ret += symbol__fprintf(pos, fp);
Arnaldo Carvalho de Melo35a50c82009-05-18 16:24:49 -0300359 }
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300360
361 return ret;
362}
363
364static LIST_HEAD(dsos);
365static struct dso *kernel_dso;
366
367static void dsos__add(struct dso *dso)
368{
369 list_add_tail(&dso->node, &dsos);
370}
371
372static struct dso *dsos__find(const char *name)
373{
374 struct dso *pos;
375
376 list_for_each_entry(pos, &dsos, node)
377 if (strcmp(pos->name, name) == 0)
378 return pos;
379 return NULL;
380}
381
382static struct dso *dsos__findnew(const char *name)
383{
384 struct dso *dso = dsos__find(name);
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +0200385 int nr;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300386
387 if (dso == NULL) {
388 dso = dso__new(name);
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +0200389 if (!dso)
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300390 goto out_delete_dso;
391
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +0200392 nr = dso__load(dso);
393 if (nr < 0) {
394 fprintf(stderr, "Failed to open: %s\n", name);
395 goto out_delete_dso;
396 }
397 if (!nr) {
398 fprintf(stderr,
399 "Failed to find debug symbols for: %s, maybe install a debug package?\n",
400 name);
401 }
402
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300403 dsos__add(dso);
404 }
405
406 return dso;
407
408out_delete_dso:
409 dso__delete(dso);
410 return NULL;
411}
412
Ingo Molnar16f762a2009-05-27 09:10:38 +0200413static void dsos__fprintf(FILE *fp)
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300414{
415 struct dso *pos;
416
417 list_for_each_entry(pos, &dsos, node)
418 dso__fprintf(pos, fp);
419}
420
Arnaldo Carvalho de Melod8d16562009-05-26 19:20:57 -0300421static int hex(char ch)
422{
423 if ((ch >= '0') && (ch <= '9'))
424 return ch - '0';
425 if ((ch >= 'a') && (ch <= 'f'))
426 return ch - 'a' + 10;
427 if ((ch >= 'A') && (ch <= 'F'))
428 return ch - 'A' + 10;
429 return -1;
430}
431
432/*
433 * While we find nice hex chars, build a long_val.
434 * Return number of chars processed.
435 */
Ingo Molnar16f762a2009-05-27 09:10:38 +0200436static int hex2long(char *ptr, unsigned long *long_val)
Arnaldo Carvalho de Melod8d16562009-05-26 19:20:57 -0300437{
438 const char *p = ptr;
439 *long_val = 0;
440
441 while (*p) {
442 const int hex_val = hex(*p);
443
444 if (hex_val < 0)
445 break;
446
447 *long_val = (*long_val << 4) | hex_val;
448 p++;
449 }
450
451 return p - ptr;
452}
453
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300454static int load_kallsyms(void)
455{
Ingo Molnaraf836322009-05-27 08:38:48 +0200456 struct rb_node *nd, *prevnd;
457 char *line = NULL;
458 FILE *file;
459 size_t n;
460
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300461 kernel_dso = dso__new("[kernel]");
462 if (kernel_dso == NULL)
463 return -1;
464
Ingo Molnaraf836322009-05-27 08:38:48 +0200465 file = fopen("/proc/kallsyms", "r");
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300466 if (file == NULL)
467 goto out_delete_dso;
468
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300469 while (!feof(file)) {
Arnaldo Carvalho de Melod8d16562009-05-26 19:20:57 -0300470 unsigned long start;
Ingo Molnaraf836322009-05-27 08:38:48 +0200471 struct symbol *sym;
472 int line_len, len;
473 char symbol_type;
474
475 line_len = getline(&line, &n, file);
Arnaldo Carvalho de Melod8d16562009-05-26 19:20:57 -0300476 if (line_len < 0)
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300477 break;
478
479 if (!line)
480 goto out_delete_dso;
481
Arnaldo Carvalho de Melod8d16562009-05-26 19:20:57 -0300482 line[--line_len] = '\0'; /* \n */
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300483
Ingo Molnaraf836322009-05-27 08:38:48 +0200484 len = hex2long(line, &start);
485
Arnaldo Carvalho de Melo03f63162009-05-26 19:21:55 -0300486 len++;
487 if (len + 2 >= line_len)
488 continue;
489
Ingo Molnaraf836322009-05-27 08:38:48 +0200490 symbol_type = toupper(line[len]);
Arnaldo Carvalho de Melo03f63162009-05-26 19:21:55 -0300491 /*
492 * We're interested only in code ('T'ext)
493 */
Ingo Molnaraf836322009-05-27 08:38:48 +0200494 if (symbol_type != 'T' && symbol_type != 'W')
Arnaldo Carvalho de Melod8d16562009-05-26 19:20:57 -0300495 continue;
496 /*
497 * Well fix up the end later, when we have all sorted.
498 */
Ingo Molnaraf836322009-05-27 08:38:48 +0200499 sym = symbol__new(start, 0xdead, line + len + 2);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300500
Arnaldo Carvalho de Melod8d16562009-05-26 19:20:57 -0300501 if (sym == NULL)
502 goto out_delete_dso;
503
504 dso__insert_symbol(kernel_dso, sym);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300505 }
506
Arnaldo Carvalho de Meloabd54f62009-05-26 12:21:34 -0300507 /*
508 * Now that we have all sorted out, just set the ->end of all
509 * symbols
510 */
Ingo Molnaraf836322009-05-27 08:38:48 +0200511 prevnd = rb_first(&kernel_dso->syms);
Arnaldo Carvalho de Meloabd54f62009-05-26 12:21:34 -0300512
513 if (prevnd == NULL)
514 goto out_delete_line;
515
516 for (nd = rb_next(prevnd); nd; nd = rb_next(nd)) {
517 struct symbol *prev = rb_entry(prevnd, struct symbol, rb_node),
518 *curr = rb_entry(nd, struct symbol, rb_node);
519
520 prev->end = curr->start - 1;
521 prevnd = nd;
522 }
523
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300524 dsos__add(kernel_dso);
525 free(line);
526 fclose(file);
Ingo Molnaraf836322009-05-27 08:38:48 +0200527
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300528 return 0;
529
Arnaldo Carvalho de Melo59d81022009-05-26 11:14:27 -0300530out_delete_line:
531 free(line);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300532out_delete_dso:
533 dso__delete(kernel_dso);
534 return -1;
535}
536
Peter Zijlstra450aaa22009-05-27 20:20:23 +0200537static int load_kernel(void)
538{
539 int fd, nr;
540
541 if (!vmlinux)
542 goto kallsyms;
543
544 fd = open(vmlinux, O_RDONLY);
545 if (fd < 0)
546 goto kallsyms;
547
548 kernel_dso = dso__new("[kernel]");
549 if (!kernel_dso)
550 goto fail_open;
551
552 nr = dso__load_sym(kernel_dso, fd, vmlinux);
553
554 if (nr <= 0)
555 goto fail_load;
556
557 dsos__add(kernel_dso);
558 close(fd);
559
560 return 0;
561
562fail_load:
563 dso__delete(kernel_dso);
564fail_open:
565 close(fd);
566kallsyms:
567 return load_kallsyms();
568}
569
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300570struct map {
571 struct list_head node;
572 uint64_t start;
573 uint64_t end;
574 uint64_t pgoff;
575 struct dso *dso;
576};
577
578static struct map *map__new(struct mmap_event *event)
579{
580 struct map *self = malloc(sizeof(*self));
581
582 if (self != NULL) {
583 self->start = event->start;
584 self->end = event->start + event->len;
585 self->pgoff = event->pgoff;
586
587 self->dso = dsos__findnew(event->filename);
588 if (self->dso == NULL)
589 goto out_delete;
590 }
591 return self;
592out_delete:
593 free(self);
594 return NULL;
595}
596
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300597struct thread;
598
599static const char *thread__name(struct thread *self, char *bf, size_t size);
600
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300601struct thread {
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -0300602 struct rb_node rb_node;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300603 struct list_head maps;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300604 pid_t pid;
605 char *comm;
606};
607
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300608static const char *thread__name(struct thread *self, char *bf, size_t size)
609{
610 if (self->comm)
611 return self->comm;
612
613 snprintf(bf, sizeof(bf), ":%u", self->pid);
614 return bf;
615}
616
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300617static struct thread *thread__new(pid_t pid)
618{
619 struct thread *self = malloc(sizeof(*self));
620
621 if (self != NULL) {
622 self->pid = pid;
623 self->comm = NULL;
624 INIT_LIST_HEAD(&self->maps);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300625 }
626
627 return self;
628}
629
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300630static int thread__set_comm(struct thread *self, const char *comm)
631{
632 self->comm = strdup(comm);
633 return self->comm ? 0 : -ENOMEM;
634}
635
Ingo Molnar16f762a2009-05-27 09:10:38 +0200636static struct rb_root threads;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300637
638static struct thread *threads__findnew(pid_t pid)
639{
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -0300640 struct rb_node **p = &threads.rb_node;
641 struct rb_node *parent = NULL;
642 struct thread *th;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300643
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -0300644 while (*p != NULL) {
645 parent = *p;
646 th = rb_entry(parent, struct thread, rb_node);
647
648 if (th->pid == pid)
649 return th;
650
651 if (pid < th->pid)
652 p = &(*p)->rb_left;
653 else
654 p = &(*p)->rb_right;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300655 }
656
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -0300657 th = thread__new(pid);
658 if (th != NULL) {
659 rb_link_node(&th->rb_node, parent, p);
660 rb_insert_color(&th->rb_node, &threads);
661 }
662 return th;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300663}
664
665static void thread__insert_map(struct thread *self, struct map *map)
666{
667 list_add_tail(&map->node, &self->maps);
668}
669
670static struct map *thread__find_map(struct thread *self, uint64_t ip)
671{
Ingo Molnar16f762a2009-05-27 09:10:38 +0200672 struct map *pos;
673
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300674 if (self == NULL)
675 return NULL;
676
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300677 list_for_each_entry(pos, &self->maps, node)
678 if (ip >= pos->start && ip <= pos->end)
679 return pos;
680
681 return NULL;
682}
683
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200684/*
685 * histogram, sorted on item, collects counts
686 */
687
688static struct rb_root hist;
689
690struct hist_entry {
691 struct rb_node rb_node;
692
693 struct thread *thread;
694 struct map *map;
695 struct dso *dso;
696 struct symbol *sym;
697 uint64_t ip;
698 char level;
699
700 uint32_t count;
701};
702
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200703/*
704 * configurable sorting bits
705 */
706
707struct sort_entry {
708 struct list_head list;
709
710 int64_t (*cmp)(struct hist_entry *, struct hist_entry *);
Ingo Molnar2d655372009-05-27 21:36:22 +0200711 size_t (*print_header)(FILE *fp);
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200712 size_t (*print)(FILE *fp, struct hist_entry *);
713};
714
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200715static int64_t
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200716sort__thread_cmp(struct hist_entry *left, struct hist_entry *right)
717{
718 return right->thread->pid - left->thread->pid;
719}
720
721static size_t
722sort__thread_print(FILE *fp, struct hist_entry *self)
723{
724 char bf[32];
725
Ingo Molnar2d655372009-05-27 21:36:22 +0200726 return fprintf(fp, " %16s",
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200727 thread__name(self->thread, bf, sizeof(bf)));
728}
729
730static struct sort_entry sort_thread = {
731 .cmp = sort__thread_cmp,
732 .print = sort__thread_print,
733};
734
735static int64_t
Peter Zijlstra992444b2009-05-27 20:20:27 +0200736sort__comm_cmp(struct hist_entry *left, struct hist_entry *right)
737{
738 char *comm_l = left->thread->comm;
739 char *comm_r = right->thread->comm;
740
741 if (!comm_l || !comm_r) {
742 if (!comm_l && !comm_r)
743 return 0;
744 else if (!comm_l)
745 return -1;
746 else
747 return 1;
748 }
749
750 return strcmp(comm_l, comm_r);
751}
752
753static size_t
754sort__comm_print(FILE *fp, struct hist_entry *self)
755{
Ingo Molnar2d655372009-05-27 21:36:22 +0200756 return fprintf(fp, " %16s", self->thread->comm ?: "<unknown>");
Peter Zijlstra992444b2009-05-27 20:20:27 +0200757}
758
759static struct sort_entry sort_comm = {
760 .cmp = sort__comm_cmp,
761 .print = sort__comm_print,
762};
763
764static int64_t
Peter Zijlstra55e5ec42009-05-27 20:20:28 +0200765sort__dso_cmp(struct hist_entry *left, struct hist_entry *right)
766{
767 struct dso *dso_l = left->dso;
768 struct dso *dso_r = right->dso;
769
770 if (!dso_l || !dso_r) {
771 if (!dso_l && !dso_r)
772 return 0;
773 else if (!dso_l)
774 return -1;
775 else
776 return 1;
777 }
778
779 return strcmp(dso_l->name, dso_r->name);
780}
781
782static size_t
783sort__dso_print(FILE *fp, struct hist_entry *self)
784{
Ingo Molnar2d655372009-05-27 21:36:22 +0200785 return fprintf(fp, " %64s", self->dso ? self->dso->name : "<unknown>");
Peter Zijlstra55e5ec42009-05-27 20:20:28 +0200786}
787
788static struct sort_entry sort_dso = {
789 .cmp = sort__dso_cmp,
790 .print = sort__dso_print,
791};
792
793static int64_t
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200794sort__sym_cmp(struct hist_entry *left, struct hist_entry *right)
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300795{
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200796 uint64_t ip_l, ip_r;
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200797
798 if (left->sym == right->sym)
799 return 0;
800
801 ip_l = left->sym ? left->sym->start : left->ip;
802 ip_r = right->sym ? right->sym->start : right->ip;
803
804 return (int64_t)(ip_r - ip_l);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -0300805}
806
Ingo Molnar2d655372009-05-27 21:36:22 +0200807static size_t sort__sym_print_header(FILE *fp)
808{
809 size_t ret = 0;
810
811 ret += fprintf(fp, "#\n");
812 ret += fprintf(fp, "# Overhead Command File: Symbol\n");
813 ret += fprintf(fp, "# ........ ....... ............\n");
814 ret += fprintf(fp, "#\n");
815
816 return ret;
817}
818
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200819static size_t
820sort__sym_print(FILE *fp, struct hist_entry *self)
821{
822 size_t ret = 0;
823
Ingo Molnar2d655372009-05-27 21:36:22 +0200824 ret += fprintf(fp, " [%c] ", self->level);
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200825
826 if (verbose)
Ingo Molnar2d655372009-05-27 21:36:22 +0200827 ret += fprintf(fp, " %#018llx", (unsigned long long)self->ip);
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200828
829 if (self->level != '.')
Ingo Molnar2d655372009-05-27 21:36:22 +0200830 ret += fprintf(fp, " kernel: %s",
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200831 self->sym ? self->sym->name : "<unknown>");
832 else
Ingo Molnar2d655372009-05-27 21:36:22 +0200833 ret += fprintf(fp, " %s: %s",
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200834 self->dso ? self->dso->name : "<unknown>",
835 self->sym ? self->sym->name : "<unknown>");
836
837 return ret;
838}
839
840static struct sort_entry sort_sym = {
Ingo Molnar2d655372009-05-27 21:36:22 +0200841 .cmp = sort__sym_cmp,
842 .print_header = sort__sym_print_header,
843 .print = sort__sym_print,
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200844};
845
Peter Zijlstra37f440c2009-05-27 20:20:26 +0200846struct sort_dimension {
847 char *name;
848 struct sort_entry *entry;
849 int taken;
850};
851
852static struct sort_dimension sort_dimensions[] = {
853 { .name = "pid", .entry = &sort_thread, },
Peter Zijlstra992444b2009-05-27 20:20:27 +0200854 { .name = "comm", .entry = &sort_comm, },
Peter Zijlstra55e5ec42009-05-27 20:20:28 +0200855 { .name = "dso", .entry = &sort_dso, },
Peter Zijlstra37f440c2009-05-27 20:20:26 +0200856 { .name = "symbol", .entry = &sort_sym, },
857};
858
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200859static LIST_HEAD(hist_entry__sort_list);
860
Peter Zijlstra37f440c2009-05-27 20:20:26 +0200861static int sort_dimension__add(char *tok)
862{
863 int i;
864
865 for (i = 0; i < ARRAY_SIZE(sort_dimensions); i++) {
866 struct sort_dimension *sd = &sort_dimensions[i];
867
868 if (sd->taken)
869 continue;
870
871 if (strcmp(tok, sd->name))
872 continue;
873
874 list_add_tail(&sd->entry->list, &hist_entry__sort_list);
875 sd->taken = 1;
876 return 0;
877 }
878
879 return -ESRCH;
880}
881
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200882static void setup_sorting(void)
883{
Peter Zijlstra37f440c2009-05-27 20:20:26 +0200884 char *tmp, *tok, *str = strdup(sort_order);
885
886 for (tok = strtok_r(str, ", ", &tmp);
887 tok; tok = strtok_r(NULL, ", ", &tmp))
888 sort_dimension__add(tok);
889
890 free(str);
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200891}
892
893static int64_t
894hist_entry__cmp(struct hist_entry *left, struct hist_entry *right)
895{
896 struct sort_entry *se;
897 int64_t cmp = 0;
898
899 list_for_each_entry(se, &hist_entry__sort_list, list) {
900 cmp = se->cmp(left, right);
901 if (cmp)
902 break;
903 }
904
905 return cmp;
906}
907
908static size_t
909hist_entry__fprintf(FILE *fp, struct hist_entry *self, uint64_t total_samples)
910{
911 struct sort_entry *se;
912 size_t ret;
913
914 if (total_samples) {
Ingo Molnar2d655372009-05-27 21:36:22 +0200915 ret = fprintf(fp, " %5.2f%%",
Peter Zijlstra1aa16732009-05-27 20:20:25 +0200916 (self->count * 100.0) / total_samples);
917 } else
918 ret = fprintf(fp, "%12d ", self->count);
919
920 list_for_each_entry(se, &hist_entry__sort_list, list)
921 ret += se->print(fp, self);
922
923 ret += fprintf(fp, "\n");
924
925 return ret;
926}
927
928/*
929 * collect histogram counts
930 */
931
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200932static int
933hist_entry__add(struct thread *thread, struct map *map, struct dso *dso,
934 struct symbol *sym, uint64_t ip, char level)
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300935{
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200936 struct rb_node **p = &hist.rb_node;
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300937 struct rb_node *parent = NULL;
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200938 struct hist_entry *he;
939 struct hist_entry entry = {
940 .thread = thread,
941 .map = map,
942 .dso = dso,
943 .sym = sym,
944 .ip = ip,
945 .level = level,
946 .count = 1,
947 };
948 int cmp;
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300949
950 while (*p != NULL) {
951 parent = *p;
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200952 he = rb_entry(parent, struct hist_entry, rb_node);
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300953
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200954 cmp = hist_entry__cmp(&entry, he);
955
956 if (!cmp) {
957 he->count++;
958 return 0;
959 }
960
961 if (cmp < 0)
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300962 p = &(*p)->rb_left;
963 else
964 p = &(*p)->rb_right;
965 }
966
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200967 he = malloc(sizeof(*he));
968 if (!he)
969 return -ENOMEM;
970 *he = entry;
971 rb_link_node(&he->rb_node, parent, p);
972 rb_insert_color(&he->rb_node, &hist);
973
974 return 0;
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -0300975}
976
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +0200977/*
978 * reverse the map, sort on count.
979 */
980
981static struct rb_root output_hists;
982
983static void output__insert_entry(struct hist_entry *he)
984{
985 struct rb_node **p = &output_hists.rb_node;
986 struct rb_node *parent = NULL;
987 struct hist_entry *iter;
988
989 while (*p != NULL) {
990 parent = *p;
991 iter = rb_entry(parent, struct hist_entry, rb_node);
992
993 if (he->count > iter->count)
994 p = &(*p)->rb_left;
995 else
996 p = &(*p)->rb_right;
997 }
998
999 rb_link_node(&he->rb_node, parent, p);
1000 rb_insert_color(&he->rb_node, &output_hists);
1001}
1002
1003static void output__resort(void)
1004{
1005 struct rb_node *next = rb_first(&hist);
1006 struct hist_entry *n;
1007
1008 while (next) {
1009 n = rb_entry(next, struct hist_entry, rb_node);
1010 next = rb_next(&n->rb_node);
1011
1012 rb_erase(&n->rb_node, &hist);
1013 output__insert_entry(n);
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -03001014 }
1015}
1016
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +02001017static size_t output__fprintf(FILE *fp, uint64_t total_samples)
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -03001018{
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +02001019 struct hist_entry *pos;
Ingo Molnar2d655372009-05-27 21:36:22 +02001020 struct sort_entry *se;
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -03001021 struct rb_node *nd;
1022 size_t ret = 0;
1023
Ingo Molnar2d655372009-05-27 21:36:22 +02001024 list_for_each_entry(se, &hist_entry__sort_list, list) {
1025 if (se->print_header)
1026 ret += se->print_header(fp);
1027 }
1028
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +02001029 for (nd = rb_first(&output_hists); nd; nd = rb_next(nd)) {
1030 pos = rb_entry(nd, struct hist_entry, rb_node);
1031 ret += hist_entry__fprintf(fp, pos, total_samples);
Arnaldo Carvalho de Melo3a4b8cc2009-05-26 16:19:04 -03001032 }
1033
1034 return ret;
1035}
1036
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +02001037
Ingo Molnar53cb8bc2009-05-26 09:17:18 +02001038static int __cmd_report(void)
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001039{
1040 unsigned long offset = 0;
1041 unsigned long head = 0;
1042 struct stat stat;
1043 char *buf;
1044 event_t *event;
1045 int ret, rc = EXIT_FAILURE;
Peter Zijlstra6142f9e2009-05-26 20:51:47 +02001046 uint32_t size;
Ingo Molnarf49515b2009-05-26 19:03:36 +02001047 unsigned long total = 0, total_mmap = 0, total_comm = 0, total_unknown = 0;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001048
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001049 input = open(input_name, O_RDONLY);
1050 if (input < 0) {
1051 perror("failed to open file");
1052 exit(-1);
1053 }
1054
1055 ret = fstat(input, &stat);
1056 if (ret < 0) {
1057 perror("failed to stat file");
1058 exit(-1);
1059 }
1060
1061 if (!stat.st_size) {
1062 fprintf(stderr, "zero-sized file, nothing to do!\n");
1063 exit(0);
1064 }
1065
Peter Zijlstra450aaa22009-05-27 20:20:23 +02001066 if (load_kernel() < 0) {
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001067 perror("failed to open kallsyms");
1068 return EXIT_FAILURE;
1069 }
1070
1071remap:
1072 buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ,
1073 MAP_SHARED, input, offset);
1074 if (buf == MAP_FAILED) {
1075 perror("failed to mmap file");
1076 exit(-1);
1077 }
1078
1079more:
1080 event = (event_t *)(buf + head);
1081
Peter Zijlstra6142f9e2009-05-26 20:51:47 +02001082 size = event->header.size;
1083 if (!size)
1084 size = 8;
1085
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001086 if (head + event->header.size >= page_size * mmap_window) {
1087 unsigned long shift = page_size * (head / page_size);
1088 int ret;
1089
1090 ret = munmap(buf, page_size * mmap_window);
1091 assert(ret == 0);
1092
1093 offset += shift;
1094 head -= shift;
1095 goto remap;
1096 }
1097
Peter Zijlstra6142f9e2009-05-26 20:51:47 +02001098 size = event->header.size;
1099 if (!size)
1100 goto broken_event;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001101
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001102 if (event->header.misc & PERF_EVENT_MISC_OVERFLOW) {
1103 char level;
1104 int show = 0;
1105 struct dso *dso = NULL;
1106 struct thread *thread = threads__findnew(event->ip.pid);
Peter Zijlstraf17e04a2009-05-26 15:30:22 +02001107 uint64_t ip = event->ip.ip;
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +02001108 struct map *map = NULL;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001109
Ingo Molnar97b07b62009-05-26 18:48:58 +02001110 if (dump_trace) {
Ingo Molnarf49515b2009-05-26 19:03:36 +02001111 fprintf(stderr, "%p [%p]: PERF_EVENT (IP, %d): %d: %p\n",
1112 (void *)(offset + head),
1113 (void *)(long)(event->header.size),
Ingo Molnar97b07b62009-05-26 18:48:58 +02001114 event->header.misc,
1115 event->ip.pid,
Ingo Molnar16f762a2009-05-27 09:10:38 +02001116 (void *)(long)ip);
Ingo Molnar97b07b62009-05-26 18:48:58 +02001117 }
1118
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -03001119 if (thread == NULL) {
1120 fprintf(stderr, "problem processing %d event, bailing out\n",
1121 event->header.type);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001122 goto done;
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -03001123 }
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001124
1125 if (event->header.misc & PERF_EVENT_MISC_KERNEL) {
1126 show = SHOW_KERNEL;
1127 level = 'k';
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +02001128
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001129 dso = kernel_dso;
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +02001130
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001131 } else if (event->header.misc & PERF_EVENT_MISC_USER) {
Ingo Molnar16f762a2009-05-27 09:10:38 +02001132
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001133 show = SHOW_USER;
1134 level = '.';
Ingo Molnar16f762a2009-05-27 09:10:38 +02001135
1136 map = thread__find_map(thread, ip);
Peter Zijlstraf17e04a2009-05-26 15:30:22 +02001137 if (map != NULL) {
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001138 dso = map->dso;
Peter Zijlstraf17e04a2009-05-26 15:30:22 +02001139 ip -= map->start + map->pgoff;
1140 }
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +02001141
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001142 } else {
1143 show = SHOW_HV;
1144 level = 'H';
1145 }
1146
1147 if (show & show_mask) {
Peter Zijlstraf17e04a2009-05-26 15:30:22 +02001148 struct symbol *sym = dso__find_symbol(dso, ip);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001149
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +02001150 if (hist_entry__add(thread, map, dso, sym, ip, level)) {
1151 fprintf(stderr,
1152 "problem incrementing symbol count, bailing out\n");
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001153 goto done;
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -03001154 }
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001155 }
1156 total++;
1157 } else switch (event->header.type) {
1158 case PERF_EVENT_MMAP: {
1159 struct thread *thread = threads__findnew(event->mmap.pid);
1160 struct map *map = map__new(&event->mmap);
1161
Ingo Molnar97b07b62009-05-26 18:48:58 +02001162 if (dump_trace) {
Ingo Molnarf49515b2009-05-26 19:03:36 +02001163 fprintf(stderr, "%p [%p]: PERF_EVENT_MMAP: [%p(%p) @ %p]: %s\n",
1164 (void *)(offset + head),
1165 (void *)(long)(event->header.size),
Ingo Molnar16f762a2009-05-27 09:10:38 +02001166 (void *)(long)event->mmap.start,
1167 (void *)(long)event->mmap.len,
1168 (void *)(long)event->mmap.pgoff,
Ingo Molnar97b07b62009-05-26 18:48:58 +02001169 event->mmap.filename);
1170 }
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -03001171 if (thread == NULL || map == NULL) {
1172 fprintf(stderr, "problem processing PERF_EVENT_MMAP, bailing out\n");
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001173 goto done;
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -03001174 }
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001175 thread__insert_map(thread, map);
Ingo Molnar97b07b62009-05-26 18:48:58 +02001176 total_mmap++;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001177 break;
1178 }
1179 case PERF_EVENT_COMM: {
1180 struct thread *thread = threads__findnew(event->comm.pid);
1181
Ingo Molnar97b07b62009-05-26 18:48:58 +02001182 if (dump_trace) {
Ingo Molnarf49515b2009-05-26 19:03:36 +02001183 fprintf(stderr, "%p [%p]: PERF_EVENT_COMM: %s:%d\n",
1184 (void *)(offset + head),
1185 (void *)(long)(event->header.size),
Ingo Molnar97b07b62009-05-26 18:48:58 +02001186 event->comm.comm, event->comm.pid);
1187 }
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001188 if (thread == NULL ||
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -03001189 thread__set_comm(thread, event->comm.comm)) {
1190 fprintf(stderr, "problem processing PERF_EVENT_COMM, bailing out\n");
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001191 goto done;
Arnaldo Carvalho de Meloce7e4362009-05-19 09:30:23 -03001192 }
Ingo Molnar97b07b62009-05-26 18:48:58 +02001193 total_comm++;
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001194 break;
1195 }
Ingo Molnar97b07b62009-05-26 18:48:58 +02001196 default: {
Peter Zijlstra6142f9e2009-05-26 20:51:47 +02001197broken_event:
Peter Zijlstrab7a16ea2009-05-27 13:35:35 +02001198 if (dump_trace)
1199 fprintf(stderr, "%p [%p]: skipping unknown header type: %d\n",
1200 (void *)(offset + head),
1201 (void *)(long)(event->header.size),
1202 event->header.type);
1203
Ingo Molnar3e706112009-05-26 18:53:17 +02001204 total_unknown++;
Peter Zijlstra6142f9e2009-05-26 20:51:47 +02001205
1206 /*
1207 * assume we lost track of the stream, check alignment, and
1208 * increment a single u64 in the hope to catch on again 'soon'.
1209 */
1210
1211 if (unlikely(head & 7))
1212 head &= ~7ULL;
1213
1214 size = 8;
Ingo Molnar97b07b62009-05-26 18:48:58 +02001215 }
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001216 }
1217
Peter Zijlstra6142f9e2009-05-26 20:51:47 +02001218 head += size;
Ingo Molnarf49515b2009-05-26 19:03:36 +02001219
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001220 if (offset + head < stat.st_size)
1221 goto more;
1222
1223 rc = EXIT_SUCCESS;
1224done:
1225 close(input);
Ingo Molnar97b07b62009-05-26 18:48:58 +02001226
1227 if (dump_trace) {
Ingo Molnar3e706112009-05-26 18:53:17 +02001228 fprintf(stderr, " IP events: %10ld\n", total);
1229 fprintf(stderr, " mmap events: %10ld\n", total_mmap);
1230 fprintf(stderr, " comm events: %10ld\n", total_comm);
1231 fprintf(stderr, " unknown events: %10ld\n", total_unknown);
Ingo Molnar97b07b62009-05-26 18:48:58 +02001232
1233 return 0;
1234 }
1235
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +02001236 if (verbose >= 2)
Ingo Molnar16f762a2009-05-27 09:10:38 +02001237 dsos__fprintf(stdout);
Ingo Molnar16f762a2009-05-27 09:10:38 +02001238
Peter Zijlstrae7fb08b2009-05-27 20:20:24 +02001239 output__resort();
1240 output__fprintf(stdout, total);
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001241
Arnaldo Carvalho de Melo8fa66bd2009-05-18 12:45:42 -03001242 return rc;
1243}
1244
Ingo Molnar53cb8bc2009-05-26 09:17:18 +02001245static const char * const report_usage[] = {
1246 "perf report [<options>] <command>",
1247 NULL
1248};
1249
1250static const struct option options[] = {
1251 OPT_STRING('i', "input", &input_name, "file",
1252 "input file name"),
Arnaldo Carvalho de Melo815e7772009-05-26 19:46:14 -03001253 OPT_BOOLEAN('v', "verbose", &verbose,
1254 "be more verbose (show symbol address, etc)"),
Ingo Molnar97b07b62009-05-26 18:48:58 +02001255 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1256 "dump raw trace in ASCII"),
Peter Zijlstra450aaa22009-05-27 20:20:23 +02001257 OPT_STRING('k', "vmlinux", &vmlinux, "file", "vmlinux pathname"),
Peter Zijlstra37f440c2009-05-27 20:20:26 +02001258 OPT_STRING('s', "sort", &sort_order, "foo", "bar"),
Ingo Molnar53cb8bc2009-05-26 09:17:18 +02001259 OPT_END()
1260};
1261
1262int cmd_report(int argc, const char **argv, const char *prefix)
1263{
1264 elf_version(EV_CURRENT);
1265
1266 page_size = getpagesize();
1267
1268 parse_options(argc, argv, options, report_usage, 0);
1269
Peter Zijlstra1aa16732009-05-27 20:20:25 +02001270 setup_sorting();
1271
Ingo Molnara930d2c2009-05-27 09:50:13 +02001272 setup_pager();
1273
Ingo Molnar53cb8bc2009-05-26 09:17:18 +02001274 return __cmd_report();
1275}