1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
5 * Parts came from builtin-annotate.c, see those files for further
13 #include "util.h" // hex_width()
30 #include "bpf-event.h"
31 #include "bpf-utils.h"
32 #include "block-range.h"
34 #include "util/event.h"
35 #include "arch/common.h"
38 #include <linux/bitops.h>
39 #include <linux/kernel.h>
40 #include <linux/string.h>
41 #include <subcmd/parse-options.h>
42 #include <subcmd/run-command.h>
44 /* FIXME: For the HE_COLORSET */
45 #include "ui/browser.h"
48 * FIXME: Using the same values as slang.h,
49 * but that header may not be available everywhere
51 #define LARROW_CHAR ((unsigned char)',')
52 #define RARROW_CHAR ((unsigned char)'+')
53 #define DARROW_CHAR ((unsigned char)'.')
54 #define UARROW_CHAR ((unsigned char)'-')
56 #include <linux/ctype.h>
58 struct annotation_options annotation__default_options = {
62 .offset_level = ANNOTATION__OFFSET_JUMP_TARGETS,
63 .percent_type = PERCENT_PERIOD_LOCAL,
66 static regex_t file_lineno;
68 static struct ins_ops *ins__find(struct arch *arch, const char *name);
69 static void ins__sort(struct arch *arch);
70 static int disasm_line__parse(char *line, const char **namep, char **rawp);
74 struct ins *instructions;
75 size_t nr_instructions;
76 size_t nr_instructions_allocated;
77 struct ins_ops *(*associate_instruction_ops)(struct arch *arch, const char *name);
78 bool sorted_instructions;
83 int (*init)(struct arch *arch, char *cpuid);
84 bool (*ins_is_fused)(struct arch *arch, const char *ins1,
88 char skip_functions_char;
92 static struct ins_ops call_ops;
93 static struct ins_ops dec_ops;
94 static struct ins_ops jump_ops;
95 static struct ins_ops mov_ops;
96 static struct ins_ops nop_ops;
97 static struct ins_ops lock_ops;
98 static struct ins_ops ret_ops;
100 static int arch__grow_instructions(struct arch *arch)
102 struct ins *new_instructions;
103 size_t new_nr_allocated;
105 if (arch->nr_instructions_allocated == 0 && arch->instructions)
106 goto grow_from_non_allocated_table;
108 new_nr_allocated = arch->nr_instructions_allocated + 128;
109 new_instructions = realloc(arch->instructions, new_nr_allocated * sizeof(struct ins));
110 if (new_instructions == NULL)
113 out_update_instructions:
114 arch->instructions = new_instructions;
115 arch->nr_instructions_allocated = new_nr_allocated;
118 grow_from_non_allocated_table:
119 new_nr_allocated = arch->nr_instructions + 128;
120 new_instructions = calloc(new_nr_allocated, sizeof(struct ins));
121 if (new_instructions == NULL)
124 memcpy(new_instructions, arch->instructions, arch->nr_instructions);
125 goto out_update_instructions;
128 static int arch__associate_ins_ops(struct arch* arch, const char *name, struct ins_ops *ops)
132 if (arch->nr_instructions == arch->nr_instructions_allocated &&
133 arch__grow_instructions(arch))
136 ins = &arch->instructions[arch->nr_instructions];
137 ins->name = strdup(name);
142 arch->nr_instructions++;
148 #include "arch/arc/annotate/instructions.c"
149 #include "arch/arm/annotate/instructions.c"
150 #include "arch/arm64/annotate/instructions.c"
151 #include "arch/csky/annotate/instructions.c"
152 #include "arch/mips/annotate/instructions.c"
153 #include "arch/x86/annotate/instructions.c"
154 #include "arch/powerpc/annotate/instructions.c"
155 #include "arch/riscv64/annotate/instructions.c"
156 #include "arch/s390/annotate/instructions.c"
157 #include "arch/sparc/annotate/instructions.c"
159 static struct arch architectures[] = {
162 .init = arc__annotate_init,
166 .init = arm__annotate_init,
170 .init = arm64__annotate_init,
174 .init = csky__annotate_init,
178 .init = mips__annotate_init,
185 .init = x86__annotate_init,
186 .instructions = x86__instructions,
187 .nr_instructions = ARRAY_SIZE(x86__instructions),
194 .init = powerpc__annotate_init,
198 .init = riscv64__annotate_init,
202 .init = s390__annotate_init,
209 .init = sparc__annotate_init,
216 static void ins__delete(struct ins_operands *ops)
220 zfree(&ops->source.raw);
221 zfree(&ops->source.name);
222 zfree(&ops->target.raw);
223 zfree(&ops->target.name);
226 static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
227 struct ins_operands *ops, int max_ins_name)
229 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->raw);
232 int ins__scnprintf(struct ins *ins, char *bf, size_t size,
233 struct ins_operands *ops, int max_ins_name)
235 if (ins->ops->scnprintf)
236 return ins->ops->scnprintf(ins, bf, size, ops, max_ins_name);
238 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
241 bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2)
243 if (!arch || !arch->ins_is_fused)
246 return arch->ins_is_fused(arch, ins1, ins2);
249 static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
251 char *endptr, *tok, *name;
252 struct map *map = ms->map;
253 struct addr_map_symbol target = {
254 .ms = { .map = map, },
257 ops->target.addr = strtoull(ops->raw, &endptr, 16);
259 name = strchr(endptr, '<');
265 if (arch->objdump.skip_functions_char &&
266 strchr(name, arch->objdump.skip_functions_char))
269 tok = strchr(name, '>');
274 ops->target.name = strdup(name);
277 if (ops->target.name == NULL)
280 target.addr = map__objdump_2mem(map, ops->target.addr);
282 if (maps__find_ams(ms->maps, &target) == 0 &&
283 map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
284 ops->target.sym = target.ms.sym;
289 tok = strchr(endptr, '*');
293 /* Indirect call can use a non-rip register and offset: callq *0x8(%rbx).
294 * Do not parse such instruction. */
295 if (strstr(endptr, "(%r") == NULL)
296 ops->target.addr = strtoull(endptr, NULL, 16);
301 static int call__scnprintf(struct ins *ins, char *bf, size_t size,
302 struct ins_operands *ops, int max_ins_name)
305 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name);
307 if (ops->target.addr == 0)
308 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
310 if (ops->target.name)
311 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.name);
313 return scnprintf(bf, size, "%-*s *%" PRIx64, max_ins_name, ins->name, ops->target.addr);
316 static struct ins_ops call_ops = {
317 .parse = call__parse,
318 .scnprintf = call__scnprintf,
321 bool ins__is_call(const struct ins *ins)
323 return ins->ops == &call_ops || ins->ops == &s390_call_ops;
327 * Prevents from matching commas in the comment section, e.g.:
328 * ffff200008446e70: b.cs ffff2000084470f4 <generic_exec_single+0x314> // b.hs, b.nlast
330 * and skip comma as part of function arguments, e.g.:
331 * 1d8b4ac <linemap_lookup(line_maps const*, unsigned int)+0xcc>
333 static inline const char *validate_comma(const char *c, struct ins_operands *ops)
335 if (ops->raw_comment && c > ops->raw_comment)
338 if (ops->raw_func_start && c > ops->raw_func_start)
344 static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
346 struct map *map = ms->map;
347 struct symbol *sym = ms->sym;
348 struct addr_map_symbol target = {
349 .ms = { .map = map, },
351 const char *c = strchr(ops->raw, ',');
354 ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char);
355 ops->raw_func_start = strchr(ops->raw, '<');
357 c = validate_comma(c, ops);
360 * Examples of lines to parse for the _cpp_lex_token@@Base
363 * 1159e6c: jne 115aa32 <_cpp_lex_token@@Base+0xf92>
364 * 1159e8b: jne c469be <cpp_named_operator2name@@Base+0xa72>
366 * The first is a jump to an offset inside the same function,
367 * the second is to another function, i.e. that 0xa72 is an
368 * offset in the cpp_named_operator2name@@base function.
371 * skip over possible up to 2 operands to get to address, e.g.:
372 * tbnz w0, #26, ffff0000083cd190 <security_file_permission+0xd0>
375 ops->target.addr = strtoull(c, NULL, 16);
376 if (!ops->target.addr) {
378 c = validate_comma(c, ops);
380 ops->target.addr = strtoull(c, NULL, 16);
383 ops->target.addr = strtoull(ops->raw, NULL, 16);
386 target.addr = map__objdump_2mem(map, ops->target.addr);
387 start = map->unmap_ip(map, sym->start),
388 end = map->unmap_ip(map, sym->end);
390 ops->target.outside = target.addr < start || target.addr > end;
393 * FIXME: things like this in _cpp_lex_token (gcc's cc1 program):
395 cpp_named_operator2name@@Base+0xa72
397 * Point to a place that is after the cpp_named_operator2name
398 * boundaries, i.e. in the ELF symbol table for cc1
399 * cpp_named_operator2name is marked as being 32-bytes long, but it in
400 * fact is much larger than that, so we seem to need a symbols__find()
401 * routine that looks for >= current->start and < next_symbol->start,
402 * possibly just for C++ objects?
404 * For now lets just make some progress by marking jumps to outside the
405 * current function as call like.
407 * Actual navigation will come next, with further understanding of how
408 * the symbol searching and disassembly should be done.
410 if (maps__find_ams(ms->maps, &target) == 0 &&
411 map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
412 ops->target.sym = target.ms.sym;
414 if (!ops->target.outside) {
415 ops->target.offset = target.addr - start;
416 ops->target.offset_avail = true;
418 ops->target.offset_avail = false;
424 static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
425 struct ins_operands *ops, int max_ins_name)
429 if (!ops->target.addr || ops->target.offset < 0)
430 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
432 if (ops->target.outside && ops->target.sym != NULL)
433 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name);
435 c = strchr(ops->raw, ',');
436 c = validate_comma(c, ops);
439 const char *c2 = strchr(c + 1, ',');
441 c2 = validate_comma(c2, ops);
442 /* check for 3-op insn */
447 /* mirror arch objdump's space-after-comma style */
452 return scnprintf(bf, size, "%-*s %.*s%" PRIx64, max_ins_name,
453 ins->name, c ? c - ops->raw : 0, ops->raw,
457 static struct ins_ops jump_ops = {
458 .parse = jump__parse,
459 .scnprintf = jump__scnprintf,
462 bool ins__is_jump(const struct ins *ins)
464 return ins->ops == &jump_ops;
467 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
469 char *endptr, *name, *t;
471 if (strstr(raw, "(%rip)") == NULL)
474 *addrp = strtoull(comment, &endptr, 16);
475 if (endptr == comment)
477 name = strchr(endptr, '<');
483 t = strchr(name, '>');
488 *namep = strdup(name);
494 static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
496 ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
497 if (ops->locked.ops == NULL)
500 if (disasm_line__parse(ops->raw, &ops->locked.ins.name, &ops->locked.ops->raw) < 0)
503 ops->locked.ins.ops = ins__find(arch, ops->locked.ins.name);
505 if (ops->locked.ins.ops == NULL)
508 if (ops->locked.ins.ops->parse &&
509 ops->locked.ins.ops->parse(arch, ops->locked.ops, ms) < 0)
515 zfree(&ops->locked.ops);
519 static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
520 struct ins_operands *ops, int max_ins_name)
524 if (ops->locked.ins.ops == NULL)
525 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
527 printed = scnprintf(bf, size, "%-*s ", max_ins_name, ins->name);
528 return printed + ins__scnprintf(&ops->locked.ins, bf + printed,
529 size - printed, ops->locked.ops, max_ins_name);
532 static void lock__delete(struct ins_operands *ops)
534 struct ins *ins = &ops->locked.ins;
536 if (ins->ops && ins->ops->free)
537 ins->ops->free(ops->locked.ops);
539 ins__delete(ops->locked.ops);
541 zfree(&ops->locked.ops);
542 zfree(&ops->target.raw);
543 zfree(&ops->target.name);
546 static struct ins_ops lock_ops = {
547 .free = lock__delete,
548 .parse = lock__parse,
549 .scnprintf = lock__scnprintf,
552 static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
554 char *s = strchr(ops->raw, ','), *target, *comment, prev;
560 ops->source.raw = strdup(ops->raw);
563 if (ops->source.raw == NULL)
567 comment = strchr(s, arch->objdump.comment_char);
572 s = strchr(s, '\0') - 1;
574 while (s > target && isspace(s[0]))
580 ops->target.raw = strdup(target);
583 if (ops->target.raw == NULL)
584 goto out_free_source;
589 comment = skip_spaces(comment);
590 comment__symbol(ops->source.raw, comment + 1, &ops->source.addr, &ops->source.name);
591 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
596 zfree(&ops->source.raw);
600 static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
601 struct ins_operands *ops, int max_ins_name)
603 return scnprintf(bf, size, "%-*s %s,%s", max_ins_name, ins->name,
604 ops->source.name ?: ops->source.raw,
605 ops->target.name ?: ops->target.raw);
608 static struct ins_ops mov_ops = {
610 .scnprintf = mov__scnprintf,
613 static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
615 char *target, *comment, *s, prev;
617 target = s = ops->raw;
619 while (s[0] != '\0' && !isspace(s[0]))
624 ops->target.raw = strdup(target);
627 if (ops->target.raw == NULL)
630 comment = strchr(s, arch->objdump.comment_char);
634 comment = skip_spaces(comment);
635 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
640 static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
641 struct ins_operands *ops, int max_ins_name)
643 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name,
644 ops->target.name ?: ops->target.raw);
647 static struct ins_ops dec_ops = {
649 .scnprintf = dec__scnprintf,
652 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
653 struct ins_operands *ops __maybe_unused, int max_ins_name)
655 return scnprintf(bf, size, "%-*s", max_ins_name, "nop");
658 static struct ins_ops nop_ops = {
659 .scnprintf = nop__scnprintf,
662 static struct ins_ops ret_ops = {
663 .scnprintf = ins__raw_scnprintf,
666 bool ins__is_ret(const struct ins *ins)
668 return ins->ops == &ret_ops;
671 bool ins__is_lock(const struct ins *ins)
673 return ins->ops == &lock_ops;
676 static int ins__key_cmp(const void *name, const void *insp)
678 const struct ins *ins = insp;
680 return strcmp(name, ins->name);
683 static int ins__cmp(const void *a, const void *b)
685 const struct ins *ia = a;
686 const struct ins *ib = b;
688 return strcmp(ia->name, ib->name);
691 static void ins__sort(struct arch *arch)
693 const int nmemb = arch->nr_instructions;
695 qsort(arch->instructions, nmemb, sizeof(struct ins), ins__cmp);
698 static struct ins_ops *__ins__find(struct arch *arch, const char *name)
701 const int nmemb = arch->nr_instructions;
703 if (!arch->sorted_instructions) {
705 arch->sorted_instructions = true;
708 ins = bsearch(name, arch->instructions, nmemb, sizeof(struct ins), ins__key_cmp);
709 return ins ? ins->ops : NULL;
712 static struct ins_ops *ins__find(struct arch *arch, const char *name)
714 struct ins_ops *ops = __ins__find(arch, name);
716 if (!ops && arch->associate_instruction_ops)
717 ops = arch->associate_instruction_ops(arch, name);
722 static int arch__key_cmp(const void *name, const void *archp)
724 const struct arch *arch = archp;
726 return strcmp(name, arch->name);
729 static int arch__cmp(const void *a, const void *b)
731 const struct arch *aa = a;
732 const struct arch *ab = b;
734 return strcmp(aa->name, ab->name);
737 static void arch__sort(void)
739 const int nmemb = ARRAY_SIZE(architectures);
741 qsort(architectures, nmemb, sizeof(struct arch), arch__cmp);
744 static struct arch *arch__find(const char *name)
746 const int nmemb = ARRAY_SIZE(architectures);
754 return bsearch(name, architectures, nmemb, sizeof(struct arch), arch__key_cmp);
757 static struct annotated_source *annotated_source__new(void)
759 struct annotated_source *src = zalloc(sizeof(*src));
762 INIT_LIST_HEAD(&src->source);
767 static __maybe_unused void annotated_source__delete(struct annotated_source *src)
771 zfree(&src->histograms);
772 zfree(&src->cycles_hist);
776 static int annotated_source__alloc_histograms(struct annotated_source *src,
777 size_t size, int nr_hists)
779 size_t sizeof_sym_hist;
782 * Add buffer of one element for zero length symbol.
783 * When sample is taken from first instruction of
784 * zero length symbol, perf still resolves it and
785 * shows symbol name in perf report and allows to
791 /* Check for overflow when calculating sizeof_sym_hist */
792 if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(struct sym_hist_entry))
795 sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(struct sym_hist_entry));
797 /* Check for overflow in zalloc argument */
798 if (sizeof_sym_hist > SIZE_MAX / nr_hists)
801 src->sizeof_sym_hist = sizeof_sym_hist;
802 src->nr_histograms = nr_hists;
803 src->histograms = calloc(nr_hists, sizeof_sym_hist) ;
804 return src->histograms ? 0 : -1;
807 /* The cycles histogram is lazily allocated. */
808 static int symbol__alloc_hist_cycles(struct symbol *sym)
810 struct annotation *notes = symbol__annotation(sym);
811 const size_t size = symbol__size(sym);
813 notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist));
814 if (notes->src->cycles_hist == NULL)
819 void symbol__annotate_zero_histograms(struct symbol *sym)
821 struct annotation *notes = symbol__annotation(sym);
823 pthread_mutex_lock(¬es->lock);
824 if (notes->src != NULL) {
825 memset(notes->src->histograms, 0,
826 notes->src->nr_histograms * notes->src->sizeof_sym_hist);
827 if (notes->src->cycles_hist)
828 memset(notes->src->cycles_hist, 0,
829 symbol__size(sym) * sizeof(struct cyc_hist));
831 pthread_mutex_unlock(¬es->lock);
834 static int __symbol__account_cycles(struct cyc_hist *ch,
836 unsigned offset, unsigned cycles,
840 * For now we can only account one basic block per
841 * final jump. But multiple could be overlapping.
842 * Always account the longest one. So when
843 * a shorter one has been already seen throw it away.
845 * We separately always account the full cycles.
847 ch[offset].num_aggr++;
848 ch[offset].cycles_aggr += cycles;
850 if (cycles > ch[offset].cycles_max)
851 ch[offset].cycles_max = cycles;
853 if (ch[offset].cycles_min) {
854 if (cycles && cycles < ch[offset].cycles_min)
855 ch[offset].cycles_min = cycles;
857 ch[offset].cycles_min = cycles;
859 if (!have_start && ch[offset].have_start)
861 if (ch[offset].num) {
862 if (have_start && (!ch[offset].have_start ||
863 ch[offset].start > start)) {
864 ch[offset].have_start = 0;
865 ch[offset].cycles = 0;
867 if (ch[offset].reset < 0xffff)
869 } else if (have_start &&
870 ch[offset].start < start)
874 if (ch[offset].num < NUM_SPARKS)
875 ch[offset].cycles_spark[ch[offset].num] = cycles;
877 ch[offset].have_start = have_start;
878 ch[offset].start = start;
879 ch[offset].cycles += cycles;
884 static int __symbol__inc_addr_samples(struct map_symbol *ms,
885 struct annotated_source *src, int evidx, u64 addr,
886 struct perf_sample *sample)
888 struct symbol *sym = ms->sym;
892 pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, ms->map->unmap_ip(ms->map, addr));
894 if ((addr < sym->start || addr >= sym->end) &&
895 (addr != sym->end || sym->start != sym->end)) {
896 pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n",
897 __func__, __LINE__, sym->name, sym->start, addr, sym->end);
901 offset = addr - sym->start;
902 h = annotated_source__histogram(src, evidx);
904 pr_debug("%s(%d): ENOMEM! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 ", func: %d\n",
905 __func__, __LINE__, sym->name, sym->start, addr, sym->end, sym->type == STT_FUNC);
909 h->addr[offset].nr_samples++;
910 h->period += sample->period;
911 h->addr[offset].period += sample->period;
913 pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
914 ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n",
915 sym->start, sym->name, addr, addr - sym->start, evidx,
916 h->addr[offset].nr_samples, h->addr[offset].period);
920 static struct cyc_hist *symbol__cycles_hist(struct symbol *sym)
922 struct annotation *notes = symbol__annotation(sym);
924 if (notes->src == NULL) {
925 notes->src = annotated_source__new();
926 if (notes->src == NULL)
928 goto alloc_cycles_hist;
931 if (!notes->src->cycles_hist) {
933 symbol__alloc_hist_cycles(sym);
936 return notes->src->cycles_hist;
939 struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists)
941 struct annotation *notes = symbol__annotation(sym);
943 if (notes->src == NULL) {
944 notes->src = annotated_source__new();
945 if (notes->src == NULL)
947 goto alloc_histograms;
950 if (notes->src->histograms == NULL) {
952 annotated_source__alloc_histograms(notes->src, symbol__size(sym),
959 static int symbol__inc_addr_samples(struct map_symbol *ms,
960 struct evsel *evsel, u64 addr,
961 struct perf_sample *sample)
963 struct symbol *sym = ms->sym;
964 struct annotated_source *src;
968 src = symbol__hists(sym, evsel->evlist->core.nr_entries);
969 return src ? __symbol__inc_addr_samples(ms, src, evsel->core.idx, addr, sample) : 0;
972 static int symbol__account_cycles(u64 addr, u64 start,
973 struct symbol *sym, unsigned cycles)
975 struct cyc_hist *cycles_hist;
980 cycles_hist = symbol__cycles_hist(sym);
981 if (cycles_hist == NULL)
983 if (addr < sym->start || addr >= sym->end)
987 if (start < sym->start || start >= sym->end)
992 offset = addr - sym->start;
993 return __symbol__account_cycles(cycles_hist,
994 start ? start - sym->start : 0,
999 int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
1000 struct addr_map_symbol *start,
1010 * Only set start when IPC can be computed. We can only
1011 * compute it when the basic block is completely in a single
1013 * Special case the case when the jump is elsewhere, but
1014 * it starts on the function start.
1017 (start->ms.sym == ams->ms.sym ||
1019 start->addr == ams->ms.sym->start + ams->ms.map->start)))
1020 saddr = start->al_addr;
1022 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
1024 start ? start->addr : 0,
1025 ams->ms.sym ? ams->ms.sym->start + ams->ms.map->start : 0,
1027 err = symbol__account_cycles(ams->al_addr, saddr, ams->ms.sym, cycles);
1029 pr_debug2("account_cycles failed %d\n", err);
1033 static unsigned annotation__count_insn(struct annotation *notes, u64 start, u64 end)
1035 unsigned n_insn = 0;
1038 for (offset = start; offset <= end; offset++) {
1039 if (notes->offsets[offset])
1045 static void annotation__count_and_fill(struct annotation *notes, u64 start, u64 end, struct cyc_hist *ch)
1048 unsigned int cover_insn = 0;
1051 n_insn = annotation__count_insn(notes, start, end);
1052 if (n_insn && ch->num && ch->cycles) {
1053 float ipc = n_insn / ((double)ch->cycles / (double)ch->num);
1055 /* Hide data when there are too many overlaps. */
1056 if (ch->reset >= 0x7fff)
1059 for (offset = start; offset <= end; offset++) {
1060 struct annotation_line *al = notes->offsets[offset];
1062 if (al && al->ipc == 0.0) {
1069 notes->hit_cycles += ch->cycles;
1070 notes->hit_insn += n_insn * ch->num;
1071 notes->cover_insn += cover_insn;
1076 void annotation__compute_ipc(struct annotation *notes, size_t size)
1080 if (!notes->src || !notes->src->cycles_hist)
1083 notes->total_insn = annotation__count_insn(notes, 0, size - 1);
1084 notes->hit_cycles = 0;
1085 notes->hit_insn = 0;
1086 notes->cover_insn = 0;
1088 pthread_mutex_lock(¬es->lock);
1089 for (offset = size - 1; offset >= 0; --offset) {
1090 struct cyc_hist *ch;
1092 ch = ¬es->src->cycles_hist[offset];
1093 if (ch && ch->cycles) {
1094 struct annotation_line *al;
1097 annotation__count_and_fill(notes, ch->start, offset, ch);
1098 al = notes->offsets[offset];
1099 if (al && ch->num_aggr) {
1100 al->cycles = ch->cycles_aggr / ch->num_aggr;
1101 al->cycles_max = ch->cycles_max;
1102 al->cycles_min = ch->cycles_min;
1104 notes->have_cycles = true;
1107 pthread_mutex_unlock(¬es->lock);
1110 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
1111 struct evsel *evsel)
1113 return symbol__inc_addr_samples(&ams->ms, evsel, ams->al_addr, sample);
1116 int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
1117 struct evsel *evsel, u64 ip)
1119 return symbol__inc_addr_samples(&he->ms, evsel, ip, sample);
1122 static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms)
1124 dl->ins.ops = ins__find(arch, dl->ins.name);
1129 if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, ms) < 0)
1133 static int disasm_line__parse(char *line, const char **namep, char **rawp)
1135 char tmp, *name = skip_spaces(line);
1137 if (name[0] == '\0')
1142 while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
1147 *namep = strdup(name);
1153 *rawp = strim(*rawp);
1161 struct annotate_args {
1163 struct map_symbol ms;
1164 struct evsel *evsel;
1165 struct annotation_options *options;
1172 static void annotation_line__init(struct annotation_line *al,
1173 struct annotate_args *args,
1176 al->offset = args->offset;
1177 al->line = strdup(args->line);
1178 al->line_nr = args->line_nr;
1179 al->fileloc = args->fileloc;
1183 static void annotation_line__exit(struct annotation_line *al)
1185 free_srcline(al->path);
1189 static size_t disasm_line_size(int nr)
1191 struct annotation_line *al;
1193 return (sizeof(struct disasm_line) + (sizeof(al->data[0]) * nr));
1197 * Allocating the disasm annotation line data with
1198 * following structure:
1200 * -------------------------------------------
1201 * struct disasm_line | struct annotation_line
1202 * -------------------------------------------
1204 * We have 'struct annotation_line' member as last member
1205 * of 'struct disasm_line' to have an easy access.
1207 static struct disasm_line *disasm_line__new(struct annotate_args *args)
1209 struct disasm_line *dl = NULL;
1212 if (evsel__is_group_event(args->evsel))
1213 nr = args->evsel->core.nr_members;
1215 dl = zalloc(disasm_line_size(nr));
1219 annotation_line__init(&dl->al, args, nr);
1220 if (dl->al.line == NULL)
1223 if (args->offset != -1) {
1224 if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0)
1227 disasm_line__init_ins(dl, args->arch, &args->ms);
1233 zfree(&dl->al.line);
1239 void disasm_line__free(struct disasm_line *dl)
1241 if (dl->ins.ops && dl->ins.ops->free)
1242 dl->ins.ops->free(&dl->ops);
1244 ins__delete(&dl->ops);
1245 zfree(&dl->ins.name);
1246 annotation_line__exit(&dl->al);
1250 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name)
1252 if (raw || !dl->ins.ops)
1253 return scnprintf(bf, size, "%-*s %s", max_ins_name, dl->ins.name, dl->ops.raw);
1255 return ins__scnprintf(&dl->ins, bf, size, &dl->ops, max_ins_name);
1258 void annotation__init(struct annotation *notes)
1260 pthread_mutex_init(¬es->lock, NULL);
1263 void annotation__exit(struct annotation *notes)
1265 annotated_source__delete(notes->src);
1266 pthread_mutex_destroy(¬es->lock);
1269 static void annotation_line__add(struct annotation_line *al, struct list_head *head)
1271 list_add_tail(&al->node, head);
1274 struct annotation_line *
1275 annotation_line__next(struct annotation_line *pos, struct list_head *head)
1277 list_for_each_entry_continue(pos, head, node)
1278 if (pos->offset >= 0)
1284 static const char *annotate__address_color(struct block_range *br)
1286 double cov = block_range__coverage(br);
1289 /* mark red for >75% coverage */
1291 return PERF_COLOR_RED;
1293 /* mark dull for <1% coverage */
1295 return PERF_COLOR_NORMAL;
1298 return PERF_COLOR_MAGENTA;
1301 static const char *annotate__asm_color(struct block_range *br)
1303 double cov = block_range__coverage(br);
1306 /* mark dull for <1% coverage */
1308 return PERF_COLOR_NORMAL;
1311 return PERF_COLOR_BLUE;
1314 static void annotate__branch_printf(struct block_range *br, u64 addr)
1316 bool emit_comment = true;
1322 if (br->is_target && br->start == addr) {
1323 struct block_range *branch = br;
1327 * Find matching branch to our target.
1329 while (!branch->is_branch)
1330 branch = block_range__next(branch);
1332 p = 100 *(double)br->entry / branch->coverage;
1336 emit_comment = false;
1341 * The percentage of coverage joined at this target in relation
1342 * to the next branch.
1344 printf(" +%.2f%%", p);
1348 if (br->is_branch && br->end == addr) {
1349 double p = 100*(double)br->taken / br->coverage;
1353 emit_comment = false;
1358 * The percentage of coverage leaving at this branch, and
1359 * its prediction ratio.
1361 printf(" -%.2f%% (p:%.2f%%)", p, 100*(double)br->pred / br->taken);
1366 static int disasm_line__print(struct disasm_line *dl, u64 start, int addr_fmt_width)
1368 s64 offset = dl->al.offset;
1369 const u64 addr = start + offset;
1370 struct block_range *br;
1372 br = block_range__find(addr);
1373 color_fprintf(stdout, annotate__address_color(br), " %*" PRIx64 ":", addr_fmt_width, addr);
1374 color_fprintf(stdout, annotate__asm_color(br), "%s", dl->al.line);
1375 annotate__branch_printf(br, addr);
1380 annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start,
1381 struct evsel *evsel, u64 len, int min_pcnt, int printed,
1382 int max_lines, struct annotation_line *queue, int addr_fmt_width,
1385 struct disasm_line *dl = container_of(al, struct disasm_line, al);
1386 static const char *prev_line;
1388 if (al->offset != -1) {
1389 double max_percent = 0.0;
1390 int i, nr_percent = 1;
1392 struct annotation *notes = symbol__annotation(sym);
1394 for (i = 0; i < al->data_nr; i++) {
1397 percent = annotation_data__percent(&al->data[i],
1400 if (percent > max_percent)
1401 max_percent = percent;
1404 if (al->data_nr > nr_percent)
1405 nr_percent = al->data_nr;
1407 if (max_percent < min_pcnt)
1410 if (max_lines && printed >= max_lines)
1413 if (queue != NULL) {
1414 list_for_each_entry_from(queue, ¬es->src->source, node) {
1417 annotation_line__print(queue, sym, start, evsel, len,
1418 0, 0, 1, NULL, addr_fmt_width,
1423 color = get_percent_color(max_percent);
1425 for (i = 0; i < nr_percent; i++) {
1426 struct annotation_data *data = &al->data[i];
1429 percent = annotation_data__percent(data, percent_type);
1430 color = get_percent_color(percent);
1432 if (symbol_conf.show_total_period)
1433 color_fprintf(stdout, color, " %11" PRIu64,
1435 else if (symbol_conf.show_nr_samples)
1436 color_fprintf(stdout, color, " %7" PRIu64,
1437 data->he.nr_samples);
1439 color_fprintf(stdout, color, " %7.2f", percent);
1444 disasm_line__print(dl, start, addr_fmt_width);
1447 * Also color the filename and line if needed, with
1448 * the same color than the percentage. Don't print it
1449 * twice for close colored addr with the same filename:line
1452 if (!prev_line || strcmp(prev_line, al->path)) {
1453 color_fprintf(stdout, color, " // %s", al->path);
1454 prev_line = al->path;
1459 } else if (max_lines && printed >= max_lines)
1462 int width = symbol_conf.show_total_period ? 12 : 8;
1467 if (evsel__is_group_event(evsel))
1468 width *= evsel->core.nr_members;
1471 printf(" %*s:\n", width, " ");
1473 printf(" %*s: %-*d %s\n", width, " ", addr_fmt_width, al->line_nr, al->line);
1480 * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
1481 * which looks like following
1483 * 0000000000415500 <_init>:
1484 * 415500: sub $0x8,%rsp
1485 * 415504: mov 0x2f5ad5(%rip),%rax # 70afe0 <_DYNAMIC+0x2f8>
1486 * 41550b: test %rax,%rax
1487 * 41550e: je 415515 <_init+0x15>
1488 * 415510: callq 416e70 <__gmon_start__@plt>
1489 * 415515: add $0x8,%rsp
1492 * it will be parsed and saved into struct disasm_line as
1493 * <offset> <name> <ops.raw>
1495 * The offset will be a relative offset from the start of the symbol and -1
1496 * means that it's not a disassembly line so should be treated differently.
1497 * The ops.raw part will be parsed further according to type of the instruction.
1499 static int symbol__parse_objdump_line(struct symbol *sym,
1500 struct annotate_args *args,
1501 char *parsed_line, int *line_nr, char **fileloc)
1503 struct map *map = args->ms.map;
1504 struct annotation *notes = symbol__annotation(sym);
1505 struct disasm_line *dl;
1507 s64 line_ip, offset = -1;
1508 regmatch_t match[2];
1510 /* /filename:linenr ? Save line number and ignore. */
1511 if (regexec(&file_lineno, parsed_line, 2, match, 0) == 0) {
1512 *line_nr = atoi(parsed_line + match[1].rm_so);
1513 *fileloc = strdup(parsed_line);
1517 /* Process hex address followed by ':'. */
1518 line_ip = strtoull(parsed_line, &tmp, 16);
1519 if (parsed_line != tmp && tmp[0] == ':' && tmp[1] != '\0') {
1520 u64 start = map__rip_2objdump(map, sym->start),
1521 end = map__rip_2objdump(map, sym->end);
1523 offset = line_ip - start;
1524 if ((u64)line_ip < start || (u64)line_ip >= end)
1527 parsed_line = tmp + 1;
1530 args->offset = offset;
1531 args->line = parsed_line;
1532 args->line_nr = *line_nr;
1533 args->fileloc = *fileloc;
1536 dl = disasm_line__new(args);
1542 if (!disasm_line__has_local_offset(dl)) {
1543 dl->ops.target.offset = dl->ops.target.addr -
1544 map__rip_2objdump(map, sym->start);
1545 dl->ops.target.offset_avail = true;
1548 /* kcore has no symbols, so add the call target symbol */
1549 if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) {
1550 struct addr_map_symbol target = {
1551 .addr = dl->ops.target.addr,
1552 .ms = { .map = map, },
1555 if (!maps__find_ams(args->ms.maps, &target) &&
1556 target.ms.sym->start == target.al_addr)
1557 dl->ops.target.sym = target.ms.sym;
1560 annotation_line__add(&dl->al, ¬es->src->source);
1565 static __attribute__((constructor)) void symbol__init_regexpr(void)
1567 regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
1570 static void delete_last_nop(struct symbol *sym)
1572 struct annotation *notes = symbol__annotation(sym);
1573 struct list_head *list = ¬es->src->source;
1574 struct disasm_line *dl;
1576 while (!list_empty(list)) {
1577 dl = list_entry(list->prev, struct disasm_line, al.node);
1580 if (dl->ins.ops != &nop_ops)
1583 if (!strstr(dl->al.line, " nop ") &&
1584 !strstr(dl->al.line, " nopl ") &&
1585 !strstr(dl->al.line, " nopw "))
1589 list_del_init(&dl->al.node);
1590 disasm_line__free(dl);
1594 int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, size_t buflen)
1596 struct dso *dso = ms->map->dso;
1598 BUG_ON(buflen == 0);
1601 str_error_r(errnum, buf, buflen);
1606 case SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX: {
1607 char bf[SBUILD_ID_SIZE + 15] = " with build id ";
1608 char *build_id_msg = NULL;
1610 if (dso->has_build_id) {
1611 build_id__sprintf(&dso->bid, bf + 15);
1614 scnprintf(buf, buflen,
1615 "No vmlinux file%s\nwas found in the path.\n\n"
1616 "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
1618 " perf buildid-cache -vu vmlinux\n\n"
1620 " --vmlinux vmlinux\n", build_id_msg ?: "");
1623 case SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF:
1624 scnprintf(buf, buflen, "Please link with binutils's libopcode to enable BPF annotation");
1626 case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP:
1627 scnprintf(buf, buflen, "Problems with arch specific instruction name regular expressions.");
1629 case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING:
1630 scnprintf(buf, buflen, "Problems while parsing the CPUID in the arch specific initialization.");
1632 case SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE:
1633 scnprintf(buf, buflen, "Invalid BPF file: %s.", dso->long_name);
1635 case SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF:
1636 scnprintf(buf, buflen, "The %s BPF file has no BTF section, compile with -g or use pahole -J.",
1640 scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum);
1647 static int dso__disassemble_filename(struct dso *dso, char *filename, size_t filename_size)
1649 char linkname[PATH_MAX];
1650 char *build_id_filename;
1651 char *build_id_path = NULL;
1655 if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
1656 !dso__is_kcore(dso))
1657 return SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX;
1659 build_id_filename = dso__build_id_filename(dso, NULL, 0, false);
1660 if (build_id_filename) {
1661 __symbol__join_symfs(filename, filename_size, build_id_filename);
1662 free(build_id_filename);
1664 if (dso->has_build_id)
1669 build_id_path = strdup(filename);
1674 * old style build-id cache has name of XX/XXXXXXX.. while
1675 * new style has XX/XXXXXXX../{elf,kallsyms,vdso}.
1676 * extract the build-id part of dirname in the new style only.
1678 pos = strrchr(build_id_path, '/');
1679 if (pos && strlen(pos) < SBUILD_ID_SIZE - 2)
1680 dirname(build_id_path);
1682 if (dso__is_kcore(dso))
1685 len = readlink(build_id_path, linkname, sizeof(linkname) - 1);
1689 linkname[len] = '\0';
1690 if (strstr(linkname, DSO__NAME_KALLSYMS) ||
1691 access(filename, R_OK)) {
1694 * If we don't have build-ids or the build-id file isn't in the
1695 * cache, or is just a kallsyms file, well, lets hope that this
1696 * DSO is the same as when 'perf record' ran.
1698 __symbol__join_symfs(filename, filename_size, dso->long_name);
1701 free(build_id_path);
1705 #if defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1706 #define PACKAGE "perf"
1708 #include <dis-asm.h>
1709 #include <bpf/bpf.h>
1710 #include <bpf/btf.h>
1711 #include <bpf/libbpf.h>
1712 #include <linux/btf.h>
1714 static int symbol__disassemble_bpf(struct symbol *sym,
1715 struct annotate_args *args)
1717 struct annotation *notes = symbol__annotation(sym);
1718 struct annotation_options *opts = args->options;
1719 struct bpf_prog_linfo *prog_linfo = NULL;
1720 struct bpf_prog_info_node *info_node;
1721 int len = sym->end - sym->start;
1722 disassembler_ftype disassemble;
1723 struct map *map = args->ms.map;
1724 struct perf_bpil *info_linear;
1725 struct disassemble_info info;
1726 struct dso *dso = map->dso;
1727 int pc = 0, count, sub_id;
1728 struct btf *btf = NULL;
1729 char tpath[PATH_MAX];
1737 if (dso->binary_type != DSO_BINARY_TYPE__BPF_PROG_INFO)
1738 return SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE;
1740 pr_debug("%s: handling sym %s addr %" PRIx64 " len %" PRIx64 "\n", __func__,
1741 sym->name, sym->start, sym->end - sym->start);
1743 memset(tpath, 0, sizeof(tpath));
1744 perf_exe(tpath, sizeof(tpath));
1746 bfdf = bfd_openr(tpath, NULL);
1748 assert(bfd_check_format(bfdf, bfd_object));
1750 s = open_memstream(&buf, &buf_size);
1755 init_disassemble_info(&info, s,
1756 (fprintf_ftype) fprintf);
1758 info.arch = bfd_get_arch(bfdf);
1759 info.mach = bfd_get_mach(bfdf);
1761 info_node = perf_env__find_bpf_prog_info(dso->bpf_prog.env,
1764 ret = SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF;
1767 info_linear = info_node->info_linear;
1768 sub_id = dso->bpf_prog.sub_id;
1770 info.buffer = (void *)(uintptr_t)(info_linear->info.jited_prog_insns);
1771 info.buffer_length = info_linear->info.jited_prog_len;
1773 if (info_linear->info.nr_line_info)
1774 prog_linfo = bpf_prog_linfo__new(&info_linear->info);
1776 if (info_linear->info.btf_id) {
1777 struct btf_node *node;
1779 node = perf_env__find_btf(dso->bpf_prog.env,
1780 info_linear->info.btf_id);
1782 btf = btf__new((__u8 *)(node->data),
1786 disassemble_init_for_target(&info);
1788 #ifdef DISASM_FOUR_ARGS_SIGNATURE
1789 disassemble = disassembler(info.arch,
1790 bfd_big_endian(bfdf),
1794 disassemble = disassembler(bfdf);
1796 assert(disassemble);
1800 const struct bpf_line_info *linfo = NULL;
1801 struct disasm_line *dl;
1802 size_t prev_buf_size;
1803 const char *srcline;
1806 addr = pc + ((u64 *)(uintptr_t)(info_linear->info.jited_ksyms))[sub_id];
1807 count = disassemble(pc, &info);
1810 linfo = bpf_prog_linfo__lfind_addr_func(prog_linfo,
1815 srcline = btf__name_by_offset(btf, linfo->line_off);
1821 prev_buf_size = buf_size;
1824 if (!opts->hide_src_code && srcline) {
1826 args->line = strdup(srcline);
1828 args->fileloc = NULL;
1830 dl = disasm_line__new(args);
1832 annotation_line__add(&dl->al,
1833 ¬es->src->source);
1838 args->line = buf + prev_buf_size;
1840 args->fileloc = NULL;
1842 dl = disasm_line__new(args);
1844 annotation_line__add(&dl->al, ¬es->src->source);
1847 } while (count > 0 && pc < len);
1857 #else // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1858 static int symbol__disassemble_bpf(struct symbol *sym __maybe_unused,
1859 struct annotate_args *args __maybe_unused)
1861 return SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF;
1863 #endif // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1866 symbol__disassemble_bpf_image(struct symbol *sym,
1867 struct annotate_args *args)
1869 struct annotation *notes = symbol__annotation(sym);
1870 struct disasm_line *dl;
1873 args->line = strdup("to be implemented");
1875 args->fileloc = NULL;
1876 dl = disasm_line__new(args);
1878 annotation_line__add(&dl->al, ¬es->src->source);
1885 * Possibly create a new version of line with tabs expanded. Returns the
1886 * existing or new line, storage is updated if a new line is allocated. If
1887 * allocation fails then NULL is returned.
1889 static char *expand_tabs(char *line, char **storage, size_t *storage_len)
1891 size_t i, src, dst, len, new_storage_len, num_tabs;
1893 size_t line_len = strlen(line);
1895 for (num_tabs = 0, i = 0; i < line_len; i++)
1896 if (line[i] == '\t')
1903 * Space for the line and '\0', less the leading and trailing
1904 * spaces. Each tab may introduce 7 additional spaces.
1906 new_storage_len = line_len + 1 + (num_tabs * 7);
1908 new_line = malloc(new_storage_len);
1909 if (new_line == NULL) {
1910 pr_err("Failure allocating memory for tab expansion\n");
1915 * Copy regions starting at src and expand tabs. If there are two
1916 * adjacent tabs then 'src == i', the memcpy is of size 0 and the spaces
1919 for (i = 0, src = 0, dst = 0; i < line_len && num_tabs; i++) {
1920 if (line[i] == '\t') {
1922 memcpy(&new_line[dst], &line[src], len);
1924 new_line[dst++] = ' ';
1925 while (dst % 8 != 0)
1926 new_line[dst++] = ' ';
1932 /* Expand the last region. */
1933 len = line_len - src;
1934 memcpy(&new_line[dst], &line[src], len);
1936 new_line[dst] = '\0';
1939 *storage = new_line;
1940 *storage_len = new_storage_len;
1945 static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
1947 struct annotation_options *opts = args->options;
1948 struct map *map = args->ms.map;
1949 struct dso *dso = map->dso;
1952 char symfs_filename[PATH_MAX];
1953 struct kcore_extract kce;
1954 bool delete_extract = false;
1955 bool decomp = false;
1957 char *fileloc = NULL;
1961 const char *objdump_argv[] = {
1964 NULL, /* Will be the objdump command to run. */
1966 NULL, /* Will be the symfs path. */
1969 struct child_process objdump_process;
1970 int err = dso__disassemble_filename(dso, symfs_filename, sizeof(symfs_filename));
1975 pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
1976 symfs_filename, sym->name, map->unmap_ip(map, sym->start),
1977 map->unmap_ip(map, sym->end));
1979 pr_debug("annotating [%p] %30s : [%p] %30s\n",
1980 dso, dso->long_name, sym, sym->name);
1982 if (dso->binary_type == DSO_BINARY_TYPE__BPF_PROG_INFO) {
1983 return symbol__disassemble_bpf(sym, args);
1984 } else if (dso->binary_type == DSO_BINARY_TYPE__BPF_IMAGE) {
1985 return symbol__disassemble_bpf_image(sym, args);
1986 } else if (dso__is_kcore(dso)) {
1987 kce.kcore_filename = symfs_filename;
1988 kce.addr = map__rip_2objdump(map, sym->start);
1989 kce.offs = sym->start;
1990 kce.len = sym->end - sym->start;
1991 if (!kcore_extract__create(&kce)) {
1992 delete_extract = true;
1993 strlcpy(symfs_filename, kce.extract_filename,
1994 sizeof(symfs_filename));
1996 } else if (dso__needs_decompress(dso)) {
1997 char tmp[KMOD_DECOMP_LEN];
1999 if (dso__decompress_kmodule_path(dso, symfs_filename,
2000 tmp, sizeof(tmp)) < 0)
2004 strcpy(symfs_filename, tmp);
2007 err = asprintf(&command,
2008 "%s %s%s --start-address=0x%016" PRIx64
2009 " --stop-address=0x%016" PRIx64
2010 " -l -d %s %s %s %c%s%c %s%s -C \"$1\"",
2011 opts->objdump_path ?: "objdump",
2012 opts->disassembler_style ? "-M " : "",
2013 opts->disassembler_style ?: "",
2014 map__rip_2objdump(map, sym->start),
2015 map__rip_2objdump(map, sym->end),
2016 opts->show_asm_raw ? "" : "--no-show-raw-insn",
2017 opts->annotate_src ? "-S" : "",
2018 opts->prefix ? "--prefix " : "",
2019 opts->prefix ? '"' : ' ',
2021 opts->prefix ? '"' : ' ',
2022 opts->prefix_strip ? "--prefix-strip=" : "",
2023 opts->prefix_strip ?: "");
2026 pr_err("Failure allocating memory for the command to run\n");
2027 goto out_remove_tmp;
2030 pr_debug("Executing: %s\n", command);
2032 objdump_argv[2] = command;
2033 objdump_argv[4] = symfs_filename;
2035 /* Create a pipe to read from for stdout */
2036 memset(&objdump_process, 0, sizeof(objdump_process));
2037 objdump_process.argv = objdump_argv;
2038 objdump_process.out = -1;
2039 objdump_process.err = -1;
2040 if (start_command(&objdump_process)) {
2041 pr_err("Failure starting to run %s\n", command);
2043 goto out_free_command;
2046 file = fdopen(objdump_process.out, "r");
2048 pr_err("Failure creating FILE stream for %s\n", command);
2050 * If we were using debug info should retry with
2054 goto out_close_stdout;
2057 /* Storage for getline. */
2062 while (!feof(file)) {
2064 char *expanded_line;
2066 if (getline(&line, &line_len, file) < 0 || !line)
2069 /* Skip lines containing "filename:" */
2070 match = strstr(line, symfs_filename);
2071 if (match && match[strlen(symfs_filename)] == ':')
2074 expanded_line = strim(line);
2075 expanded_line = expand_tabs(expanded_line, &line, &line_len);
2080 * The source code line number (lineno) needs to be kept in
2081 * across calls to symbol__parse_objdump_line(), so that it
2082 * can associate it with the instructions till the next one.
2083 * See disasm_line__new() and struct disasm_line::line_nr.
2085 if (symbol__parse_objdump_line(sym, args, expanded_line,
2086 &lineno, &fileloc) < 0)
2092 err = finish_command(&objdump_process);
2094 pr_err("Error running %s\n", command);
2098 pr_err("No output from %s\n", command);
2102 * kallsyms does not have symbol sizes so there may a nop at the end.
2105 if (dso__is_kcore(dso))
2106 delete_last_nop(sym);
2111 close(objdump_process.out);
2118 unlink(symfs_filename);
2121 kcore_extract__delete(&kce);
2126 static void calc_percent(struct sym_hist *sym_hist,
2127 struct hists *hists,
2128 struct annotation_data *data,
2129 s64 offset, s64 end)
2131 unsigned int hits = 0;
2134 while (offset < end) {
2135 hits += sym_hist->addr[offset].nr_samples;
2136 period += sym_hist->addr[offset].period;
2140 if (sym_hist->nr_samples) {
2141 data->he.period = period;
2142 data->he.nr_samples = hits;
2143 data->percent[PERCENT_HITS_LOCAL] = 100.0 * hits / sym_hist->nr_samples;
2146 if (hists->stats.nr_non_filtered_samples)
2147 data->percent[PERCENT_HITS_GLOBAL] = 100.0 * hits / hists->stats.nr_non_filtered_samples;
2149 if (sym_hist->period)
2150 data->percent[PERCENT_PERIOD_LOCAL] = 100.0 * period / sym_hist->period;
2152 if (hists->stats.total_period)
2153 data->percent[PERCENT_PERIOD_GLOBAL] = 100.0 * period / hists->stats.total_period;
2156 static void annotation__calc_percent(struct annotation *notes,
2157 struct evsel *leader, s64 len)
2159 struct annotation_line *al, *next;
2160 struct evsel *evsel;
2162 list_for_each_entry(al, ¬es->src->source, node) {
2166 if (al->offset == -1)
2169 next = annotation_line__next(al, ¬es->src->source);
2170 end = next ? next->offset : len;
2172 for_each_group_evsel(evsel, leader) {
2173 struct hists *hists = evsel__hists(evsel);
2174 struct annotation_data *data;
2175 struct sym_hist *sym_hist;
2177 BUG_ON(i >= al->data_nr);
2179 sym_hist = annotation__histogram(notes, evsel->core.idx);
2180 data = &al->data[i++];
2182 calc_percent(sym_hist, hists, data, al->offset, end);
2187 void symbol__calc_percent(struct symbol *sym, struct evsel *evsel)
2189 struct annotation *notes = symbol__annotation(sym);
2191 annotation__calc_percent(notes, evsel, symbol__size(sym));
2194 int symbol__annotate(struct map_symbol *ms, struct evsel *evsel,
2195 struct annotation_options *options, struct arch **parch)
2197 struct symbol *sym = ms->sym;
2198 struct annotation *notes = symbol__annotation(sym);
2199 struct annotate_args args = {
2203 struct perf_env *env = evsel__env(evsel);
2204 const char *arch_name = perf_env__arch(env);
2211 args.arch = arch = arch__find(arch_name);
2213 pr_err("%s: unsupported arch %s\n", __func__, arch_name);
2221 err = arch->init(arch, env ? env->cpuid : NULL);
2223 pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name);
2229 notes->start = map__rip_2objdump(ms->map, sym->start);
2231 return symbol__disassemble(sym, &args);
2234 static void insert_source_line(struct rb_root *root, struct annotation_line *al,
2235 struct annotation_options *opts)
2237 struct annotation_line *iter;
2238 struct rb_node **p = &root->rb_node;
2239 struct rb_node *parent = NULL;
2242 while (*p != NULL) {
2244 iter = rb_entry(parent, struct annotation_line, rb_node);
2246 ret = strcmp(iter->path, al->path);
2248 for (i = 0; i < al->data_nr; i++) {
2249 iter->data[i].percent_sum += annotation_data__percent(&al->data[i],
2250 opts->percent_type);
2258 p = &(*p)->rb_right;
2261 for (i = 0; i < al->data_nr; i++) {
2262 al->data[i].percent_sum = annotation_data__percent(&al->data[i],
2263 opts->percent_type);
2266 rb_link_node(&al->rb_node, parent, p);
2267 rb_insert_color(&al->rb_node, root);
2270 static int cmp_source_line(struct annotation_line *a, struct annotation_line *b)
2274 for (i = 0; i < a->data_nr; i++) {
2275 if (a->data[i].percent_sum == b->data[i].percent_sum)
2277 return a->data[i].percent_sum > b->data[i].percent_sum;
2283 static void __resort_source_line(struct rb_root *root, struct annotation_line *al)
2285 struct annotation_line *iter;
2286 struct rb_node **p = &root->rb_node;
2287 struct rb_node *parent = NULL;
2289 while (*p != NULL) {
2291 iter = rb_entry(parent, struct annotation_line, rb_node);
2293 if (cmp_source_line(al, iter))
2296 p = &(*p)->rb_right;
2299 rb_link_node(&al->rb_node, parent, p);
2300 rb_insert_color(&al->rb_node, root);
2303 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
2305 struct annotation_line *al;
2306 struct rb_node *node;
2308 node = rb_first(src_root);
2310 struct rb_node *next;
2312 al = rb_entry(node, struct annotation_line, rb_node);
2313 next = rb_next(node);
2314 rb_erase(node, src_root);
2316 __resort_source_line(dest_root, al);
2321 static void print_summary(struct rb_root *root, const char *filename)
2323 struct annotation_line *al;
2324 struct rb_node *node;
2326 printf("\nSorted summary for file %s\n", filename);
2327 printf("----------------------------------------------\n\n");
2329 if (RB_EMPTY_ROOT(root)) {
2330 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
2334 node = rb_first(root);
2336 double percent, percent_max = 0.0;
2341 al = rb_entry(node, struct annotation_line, rb_node);
2342 for (i = 0; i < al->data_nr; i++) {
2343 percent = al->data[i].percent_sum;
2344 color = get_percent_color(percent);
2345 color_fprintf(stdout, color, " %7.2f", percent);
2347 if (percent > percent_max)
2348 percent_max = percent;
2352 color = get_percent_color(percent_max);
2353 color_fprintf(stdout, color, " %s\n", path);
2355 node = rb_next(node);
2359 static void symbol__annotate_hits(struct symbol *sym, struct evsel *evsel)
2361 struct annotation *notes = symbol__annotation(sym);
2362 struct sym_hist *h = annotation__histogram(notes, evsel->core.idx);
2363 u64 len = symbol__size(sym), offset;
2365 for (offset = 0; offset < len; ++offset)
2366 if (h->addr[offset].nr_samples != 0)
2367 printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
2368 sym->start + offset, h->addr[offset].nr_samples);
2369 printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->nr_samples", h->nr_samples);
2372 static int annotated_source__addr_fmt_width(struct list_head *lines, u64 start)
2375 struct annotation_line *line;
2377 list_for_each_entry_reverse(line, lines, node) {
2378 if (line->offset != -1)
2379 return scnprintf(bf, sizeof(bf), "%" PRIx64, start + line->offset);
2385 int symbol__annotate_printf(struct map_symbol *ms, struct evsel *evsel,
2386 struct annotation_options *opts)
2388 struct map *map = ms->map;
2389 struct symbol *sym = ms->sym;
2390 struct dso *dso = map->dso;
2392 const char *d_filename;
2393 const char *evsel_name = evsel__name(evsel);
2394 struct annotation *notes = symbol__annotation(sym);
2395 struct sym_hist *h = annotation__histogram(notes, evsel->core.idx);
2396 struct annotation_line *pos, *queue = NULL;
2397 u64 start = map__rip_2objdump(map, sym->start);
2398 int printed = 2, queue_len = 0, addr_fmt_width;
2400 bool context = opts->context;
2402 int width = symbol_conf.show_total_period ? 12 : 8;
2403 int graph_dotted_len;
2406 filename = strdup(dso->long_name);
2410 if (opts->full_path)
2411 d_filename = filename;
2413 d_filename = basename(filename);
2415 len = symbol__size(sym);
2417 if (evsel__is_group_event(evsel)) {
2418 width *= evsel->core.nr_members;
2419 evsel__group_desc(evsel, buf, sizeof(buf));
2423 graph_dotted_len = printf(" %-*.*s| Source code & Disassembly of %s for %s (%" PRIu64 " samples, "
2425 width, width, symbol_conf.show_total_period ? "Period" :
2426 symbol_conf.show_nr_samples ? "Samples" : "Percent",
2427 d_filename, evsel_name, h->nr_samples,
2428 percent_type_str(opts->percent_type));
2430 printf("%-*.*s----\n",
2431 graph_dotted_len, graph_dotted_len, graph_dotted_line);
2434 symbol__annotate_hits(sym, evsel);
2436 addr_fmt_width = annotated_source__addr_fmt_width(¬es->src->source, start);
2438 list_for_each_entry(pos, ¬es->src->source, node) {
2441 if (context && queue == NULL) {
2446 err = annotation_line__print(pos, sym, start, evsel, len,
2447 opts->min_pcnt, printed, opts->max_lines,
2448 queue, addr_fmt_width, opts->percent_type);
2454 printed += queue_len;
2460 /* filtered by max_lines */
2466 * Filtered by min_pcnt or non IP lines when
2471 if (queue_len == context)
2472 queue = list_entry(queue->node.next, typeof(*queue), node);
2484 static void FILE__set_percent_color(void *fp __maybe_unused,
2485 double percent __maybe_unused,
2486 bool current __maybe_unused)
2490 static int FILE__set_jumps_percent_color(void *fp __maybe_unused,
2491 int nr __maybe_unused, bool current __maybe_unused)
2496 static int FILE__set_color(void *fp __maybe_unused, int color __maybe_unused)
2501 static void FILE__printf(void *fp, const char *fmt, ...)
2505 va_start(args, fmt);
2506 vfprintf(fp, fmt, args);
2510 static void FILE__write_graph(void *fp, int graph)
2515 case DARROW_CHAR: s = "↓"; break;
2516 case UARROW_CHAR: s = "↑"; break;
2517 case LARROW_CHAR: s = "←"; break;
2518 case RARROW_CHAR: s = "→"; break;
2519 default: s = "?"; break;
2525 static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp,
2526 struct annotation_options *opts)
2528 struct annotation *notes = symbol__annotation(sym);
2529 struct annotation_write_ops wops = {
2532 .set_color = FILE__set_color,
2533 .set_percent_color = FILE__set_percent_color,
2534 .set_jumps_percent_color = FILE__set_jumps_percent_color,
2535 .printf = FILE__printf,
2536 .write_graph = FILE__write_graph,
2538 struct annotation_line *al;
2540 list_for_each_entry(al, ¬es->src->source, node) {
2541 if (annotation_line__filter(al, notes))
2543 annotation_line__write(al, notes, &wops, opts);
2545 wops.first_line = false;
2551 int map_symbol__annotation_dump(struct map_symbol *ms, struct evsel *evsel,
2552 struct annotation_options *opts)
2554 const char *ev_name = evsel__name(evsel);
2560 if (asprintf(&filename, "%s.annotation", ms->sym->name) < 0)
2563 fp = fopen(filename, "w");
2565 goto out_free_filename;
2567 if (evsel__is_group_event(evsel)) {
2568 evsel__group_desc(evsel, buf, sizeof(buf));
2572 fprintf(fp, "%s() %s\nEvent: %s\n\n",
2573 ms->sym->name, ms->map->dso->long_name, ev_name);
2574 symbol__annotate_fprintf2(ms->sym, fp, opts);
2583 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
2585 struct annotation *notes = symbol__annotation(sym);
2586 struct sym_hist *h = annotation__histogram(notes, evidx);
2588 memset(h, 0, notes->src->sizeof_sym_hist);
2591 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
2593 struct annotation *notes = symbol__annotation(sym);
2594 struct sym_hist *h = annotation__histogram(notes, evidx);
2595 int len = symbol__size(sym), offset;
2598 for (offset = 0; offset < len; ++offset) {
2599 h->addr[offset].nr_samples = h->addr[offset].nr_samples * 7 / 8;
2600 h->nr_samples += h->addr[offset].nr_samples;
2604 void annotated_source__purge(struct annotated_source *as)
2606 struct annotation_line *al, *n;
2608 list_for_each_entry_safe(al, n, &as->source, node) {
2609 list_del_init(&al->node);
2610 disasm_line__free(disasm_line(al));
2614 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
2618 if (dl->al.offset == -1)
2619 return fprintf(fp, "%s\n", dl->al.line);
2621 printed = fprintf(fp, "%#" PRIx64 " %s", dl->al.offset, dl->ins.name);
2623 if (dl->ops.raw[0] != '\0') {
2624 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
2628 return printed + fprintf(fp, "\n");
2631 size_t disasm__fprintf(struct list_head *head, FILE *fp)
2633 struct disasm_line *pos;
2636 list_for_each_entry(pos, head, al.node)
2637 printed += disasm_line__fprintf(pos, fp);
2642 bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym)
2644 if (!dl || !dl->ins.ops || !ins__is_jump(&dl->ins) ||
2645 !disasm_line__has_local_offset(dl) || dl->ops.target.offset < 0 ||
2646 dl->ops.target.offset >= (s64)symbol__size(sym))
2652 void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym)
2654 u64 offset, size = symbol__size(sym);
2656 /* PLT symbols contain external offsets */
2657 if (strstr(sym->name, "@plt"))
2660 for (offset = 0; offset < size; ++offset) {
2661 struct annotation_line *al = notes->offsets[offset];
2662 struct disasm_line *dl;
2664 dl = disasm_line(al);
2666 if (!disasm_line__is_valid_local_jump(dl, sym))
2669 al = notes->offsets[dl->ops.target.offset];
2672 * FIXME: Oops, no jump target? Buggy disassembler? Or do we
2673 * have to adjust to the previous offset?
2678 if (++al->jump_sources > notes->max_jump_sources)
2679 notes->max_jump_sources = al->jump_sources;
2683 void annotation__set_offsets(struct annotation *notes, s64 size)
2685 struct annotation_line *al;
2687 notes->max_line_len = 0;
2688 notes->nr_entries = 0;
2689 notes->nr_asm_entries = 0;
2691 list_for_each_entry(al, ¬es->src->source, node) {
2692 size_t line_len = strlen(al->line);
2694 if (notes->max_line_len < line_len)
2695 notes->max_line_len = line_len;
2696 al->idx = notes->nr_entries++;
2697 if (al->offset != -1) {
2698 al->idx_asm = notes->nr_asm_entries++;
2700 * FIXME: short term bandaid to cope with assembly
2701 * routines that comes with labels in the same column
2702 * as the address in objdump, sigh.
2704 * E.g. copy_user_generic_unrolled
2706 if (al->offset < size)
2707 notes->offsets[al->offset] = al;
2713 static inline int width_jumps(int n)
2722 static int annotation__max_ins_name(struct annotation *notes)
2724 int max_name = 0, len;
2725 struct annotation_line *al;
2727 list_for_each_entry(al, ¬es->src->source, node) {
2728 if (al->offset == -1)
2731 len = strlen(disasm_line(al)->ins.name);
2739 void annotation__init_column_widths(struct annotation *notes, struct symbol *sym)
2741 notes->widths.addr = notes->widths.target =
2742 notes->widths.min_addr = hex_width(symbol__size(sym));
2743 notes->widths.max_addr = hex_width(sym->end);
2744 notes->widths.jumps = width_jumps(notes->max_jump_sources);
2745 notes->widths.max_ins_name = annotation__max_ins_name(notes);
2748 void annotation__update_column_widths(struct annotation *notes)
2750 if (notes->options->use_offset)
2751 notes->widths.target = notes->widths.min_addr;
2753 notes->widths.target = notes->widths.max_addr;
2755 notes->widths.addr = notes->widths.target;
2757 if (notes->options->show_nr_jumps)
2758 notes->widths.addr += notes->widths.jumps + 1;
2761 static void annotation__calc_lines(struct annotation *notes, struct map *map,
2762 struct rb_root *root,
2763 struct annotation_options *opts)
2765 struct annotation_line *al;
2766 struct rb_root tmp_root = RB_ROOT;
2768 list_for_each_entry(al, ¬es->src->source, node) {
2769 double percent_max = 0.0;
2772 for (i = 0; i < al->data_nr; i++) {
2775 percent = annotation_data__percent(&al->data[i],
2776 opts->percent_type);
2778 if (percent > percent_max)
2779 percent_max = percent;
2782 if (percent_max <= 0.5)
2785 al->path = get_srcline(map->dso, notes->start + al->offset, NULL,
2786 false, true, notes->start + al->offset);
2787 insert_source_line(&tmp_root, al, opts);
2790 resort_source_line(root, &tmp_root);
2793 static void symbol__calc_lines(struct map_symbol *ms, struct rb_root *root,
2794 struct annotation_options *opts)
2796 struct annotation *notes = symbol__annotation(ms->sym);
2798 annotation__calc_lines(notes, ms->map, root, opts);
2801 int symbol__tty_annotate2(struct map_symbol *ms, struct evsel *evsel,
2802 struct annotation_options *opts)
2804 struct dso *dso = ms->map->dso;
2805 struct symbol *sym = ms->sym;
2806 struct rb_root source_line = RB_ROOT;
2807 struct hists *hists = evsel__hists(evsel);
2811 err = symbol__annotate2(ms, evsel, opts, NULL);
2815 dso->annotate_warned = true;
2816 symbol__strerror_disassemble(ms, err, msg, sizeof(msg));
2817 ui__error("Couldn't annotate %s:\n%s", sym->name, msg);
2821 if (opts->print_lines) {
2822 srcline_full_filename = opts->full_path;
2823 symbol__calc_lines(ms, &source_line, opts);
2824 print_summary(&source_line, dso->long_name);
2827 hists__scnprintf_title(hists, buf, sizeof(buf));
2828 fprintf(stdout, "%s, [percent: %s]\n%s() %s\n",
2829 buf, percent_type_str(opts->percent_type), sym->name, dso->long_name);
2830 symbol__annotate_fprintf2(sym, stdout, opts);
2832 annotated_source__purge(symbol__annotation(sym)->src);
2837 int symbol__tty_annotate(struct map_symbol *ms, struct evsel *evsel,
2838 struct annotation_options *opts)
2840 struct dso *dso = ms->map->dso;
2841 struct symbol *sym = ms->sym;
2842 struct rb_root source_line = RB_ROOT;
2845 err = symbol__annotate(ms, evsel, opts, NULL);
2849 dso->annotate_warned = true;
2850 symbol__strerror_disassemble(ms, err, msg, sizeof(msg));
2851 ui__error("Couldn't annotate %s:\n%s", sym->name, msg);
2855 symbol__calc_percent(sym, evsel);
2857 if (opts->print_lines) {
2858 srcline_full_filename = opts->full_path;
2859 symbol__calc_lines(ms, &source_line, opts);
2860 print_summary(&source_line, dso->long_name);
2863 symbol__annotate_printf(ms, evsel, opts);
2865 annotated_source__purge(symbol__annotation(sym)->src);
2870 bool ui__has_annotation(void)
2872 return use_browser == 1 && perf_hpp_list.sym;
2876 static double annotation_line__max_percent(struct annotation_line *al,
2877 struct annotation *notes,
2878 unsigned int percent_type)
2880 double percent_max = 0.0;
2883 for (i = 0; i < notes->nr_events; i++) {
2886 percent = annotation_data__percent(&al->data[i],
2889 if (percent > percent_max)
2890 percent_max = percent;
2896 static void disasm_line__write(struct disasm_line *dl, struct annotation *notes,
2897 void *obj, char *bf, size_t size,
2898 void (*obj__printf)(void *obj, const char *fmt, ...),
2899 void (*obj__write_graph)(void *obj, int graph))
2901 if (dl->ins.ops && dl->ins.ops->scnprintf) {
2902 if (ins__is_jump(&dl->ins)) {
2905 if (dl->ops.target.outside)
2907 fwd = dl->ops.target.offset > dl->al.offset;
2908 obj__write_graph(obj, fwd ? DARROW_CHAR : UARROW_CHAR);
2909 obj__printf(obj, " ");
2910 } else if (ins__is_call(&dl->ins)) {
2912 obj__write_graph(obj, RARROW_CHAR);
2913 obj__printf(obj, " ");
2914 } else if (ins__is_ret(&dl->ins)) {
2915 obj__write_graph(obj, LARROW_CHAR);
2916 obj__printf(obj, " ");
2918 obj__printf(obj, " ");
2921 obj__printf(obj, " ");
2924 disasm_line__scnprintf(dl, bf, size, !notes->options->use_offset, notes->widths.max_ins_name);
2927 static void ipc_coverage_string(char *bf, int size, struct annotation *notes)
2929 double ipc = 0.0, coverage = 0.0;
2931 if (notes->hit_cycles)
2932 ipc = notes->hit_insn / ((double)notes->hit_cycles);
2934 if (notes->total_insn) {
2935 coverage = notes->cover_insn * 100.0 /
2936 ((double)notes->total_insn);
2939 scnprintf(bf, size, "(Average IPC: %.2f, IPC Coverage: %.1f%%)",
2943 static void __annotation_line__write(struct annotation_line *al, struct annotation *notes,
2944 bool first_line, bool current_entry, bool change_color, int width,
2945 void *obj, unsigned int percent_type,
2946 int (*obj__set_color)(void *obj, int color),
2947 void (*obj__set_percent_color)(void *obj, double percent, bool current),
2948 int (*obj__set_jumps_percent_color)(void *obj, int nr, bool current),
2949 void (*obj__printf)(void *obj, const char *fmt, ...),
2950 void (*obj__write_graph)(void *obj, int graph))
2953 double percent_max = annotation_line__max_percent(al, notes, percent_type);
2954 int pcnt_width = annotation__pcnt_width(notes),
2955 cycles_width = annotation__cycles_width(notes);
2956 bool show_title = false;
2960 if (first_line && (al->offset == -1 || percent_max == 0.0)) {
2961 if (notes->have_cycles) {
2962 if (al->ipc == 0.0 && al->cycles == 0)
2968 if (al->offset != -1 && percent_max != 0.0) {
2971 for (i = 0; i < notes->nr_events; i++) {
2974 percent = annotation_data__percent(&al->data[i], percent_type);
2976 obj__set_percent_color(obj, percent, current_entry);
2977 if (symbol_conf.show_total_period) {
2978 obj__printf(obj, "%11" PRIu64 " ", al->data[i].he.period);
2979 } else if (symbol_conf.show_nr_samples) {
2980 obj__printf(obj, "%6" PRIu64 " ",
2981 al->data[i].he.nr_samples);
2983 obj__printf(obj, "%6.2f ", percent);
2987 obj__set_percent_color(obj, 0, current_entry);
2990 obj__printf(obj, "%-*s", pcnt_width, " ");
2992 obj__printf(obj, "%-*s", pcnt_width,
2993 symbol_conf.show_total_period ? "Period" :
2994 symbol_conf.show_nr_samples ? "Samples" : "Percent");
2998 if (notes->have_cycles) {
3000 obj__printf(obj, "%*.2f ", ANNOTATION__IPC_WIDTH - 1, al->ipc);
3001 else if (!show_title)
3002 obj__printf(obj, "%*s", ANNOTATION__IPC_WIDTH, " ");
3004 obj__printf(obj, "%*s ", ANNOTATION__IPC_WIDTH - 1, "IPC");
3006 if (!notes->options->show_minmax_cycle) {
3008 obj__printf(obj, "%*" PRIu64 " ",
3009 ANNOTATION__CYCLES_WIDTH - 1, al->cycles);
3010 else if (!show_title)
3011 obj__printf(obj, "%*s",
3012 ANNOTATION__CYCLES_WIDTH, " ");
3014 obj__printf(obj, "%*s ",
3015 ANNOTATION__CYCLES_WIDTH - 1,
3021 scnprintf(str, sizeof(str),
3022 "%" PRIu64 "(%" PRIu64 "/%" PRIu64 ")",
3023 al->cycles, al->cycles_min,
3026 obj__printf(obj, "%*s ",
3027 ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
3029 } else if (!show_title)
3030 obj__printf(obj, "%*s",
3031 ANNOTATION__MINMAX_CYCLES_WIDTH,
3034 obj__printf(obj, "%*s ",
3035 ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
3039 if (show_title && !*al->line) {
3040 ipc_coverage_string(bf, sizeof(bf), notes);
3041 obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf);
3045 obj__printf(obj, " ");
3048 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " ");
3049 else if (al->offset == -1) {
3050 if (al->line_nr && notes->options->show_linenr)
3051 printed = scnprintf(bf, sizeof(bf), "%-*d ", notes->widths.addr + 1, al->line_nr);
3053 printed = scnprintf(bf, sizeof(bf), "%-*s ", notes->widths.addr, " ");
3054 obj__printf(obj, bf);
3055 obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line);
3057 u64 addr = al->offset;
3060 if (!notes->options->use_offset)
3061 addr += notes->start;
3063 if (!notes->options->use_offset) {
3064 printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr);
3066 if (al->jump_sources &&
3067 notes->options->offset_level >= ANNOTATION__OFFSET_JUMP_TARGETS) {
3068 if (notes->options->show_nr_jumps) {
3070 printed = scnprintf(bf, sizeof(bf), "%*d ",
3071 notes->widths.jumps,
3073 prev = obj__set_jumps_percent_color(obj, al->jump_sources,
3075 obj__printf(obj, bf);
3076 obj__set_color(obj, prev);
3079 printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ",
3080 notes->widths.target, addr);
3081 } else if (ins__is_call(&disasm_line(al)->ins) &&
3082 notes->options->offset_level >= ANNOTATION__OFFSET_CALL) {
3084 } else if (notes->options->offset_level == ANNOTATION__MAX_OFFSET_LEVEL) {
3087 printed = scnprintf(bf, sizeof(bf), "%-*s ",
3088 notes->widths.addr, " ");
3093 color = obj__set_color(obj, HE_COLORSET_ADDR);
3094 obj__printf(obj, bf);
3096 obj__set_color(obj, color);
3098 disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph);
3100 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf);
3105 void annotation_line__write(struct annotation_line *al, struct annotation *notes,
3106 struct annotation_write_ops *wops,
3107 struct annotation_options *opts)
3109 __annotation_line__write(al, notes, wops->first_line, wops->current_entry,
3110 wops->change_color, wops->width, wops->obj,
3112 wops->set_color, wops->set_percent_color,
3113 wops->set_jumps_percent_color, wops->printf,
3117 int symbol__annotate2(struct map_symbol *ms, struct evsel *evsel,
3118 struct annotation_options *options, struct arch **parch)
3120 struct symbol *sym = ms->sym;
3121 struct annotation *notes = symbol__annotation(sym);
3122 size_t size = symbol__size(sym);
3123 int nr_pcnt = 1, err;
3125 notes->offsets = zalloc(size * sizeof(struct annotation_line *));
3126 if (notes->offsets == NULL)
3129 if (evsel__is_group_event(evsel))
3130 nr_pcnt = evsel->core.nr_members;
3132 err = symbol__annotate(ms, evsel, options, parch);
3134 goto out_free_offsets;
3136 notes->options = options;
3138 symbol__calc_percent(sym, evsel);
3140 annotation__set_offsets(notes, size);
3141 annotation__mark_jump_targets(notes, sym);
3142 annotation__compute_ipc(notes, size);
3143 annotation__init_column_widths(notes, sym);
3144 notes->nr_events = nr_pcnt;
3146 annotation__update_column_widths(notes);
3152 zfree(¬es->offsets);
3156 static int annotation__config(const char *var, const char *value, void *data)
3158 struct annotation_options *opt = data;
3160 if (!strstarts(var, "annotate."))
3163 if (!strcmp(var, "annotate.offset_level")) {
3164 perf_config_u8(&opt->offset_level, "offset_level", value);
3166 if (opt->offset_level > ANNOTATION__MAX_OFFSET_LEVEL)
3167 opt->offset_level = ANNOTATION__MAX_OFFSET_LEVEL;
3168 else if (opt->offset_level < ANNOTATION__MIN_OFFSET_LEVEL)
3169 opt->offset_level = ANNOTATION__MIN_OFFSET_LEVEL;
3170 } else if (!strcmp(var, "annotate.hide_src_code")) {
3171 opt->hide_src_code = perf_config_bool("hide_src_code", value);
3172 } else if (!strcmp(var, "annotate.jump_arrows")) {
3173 opt->jump_arrows = perf_config_bool("jump_arrows", value);
3174 } else if (!strcmp(var, "annotate.show_linenr")) {
3175 opt->show_linenr = perf_config_bool("show_linenr", value);
3176 } else if (!strcmp(var, "annotate.show_nr_jumps")) {
3177 opt->show_nr_jumps = perf_config_bool("show_nr_jumps", value);
3178 } else if (!strcmp(var, "annotate.show_nr_samples")) {
3179 symbol_conf.show_nr_samples = perf_config_bool("show_nr_samples",
3181 } else if (!strcmp(var, "annotate.show_total_period")) {
3182 symbol_conf.show_total_period = perf_config_bool("show_total_period",
3184 } else if (!strcmp(var, "annotate.use_offset")) {
3185 opt->use_offset = perf_config_bool("use_offset", value);
3186 } else if (!strcmp(var, "annotate.disassembler_style")) {
3187 opt->disassembler_style = value;
3188 } else if (!strcmp(var, "annotate.demangle")) {
3189 symbol_conf.demangle = perf_config_bool("demangle", value);
3190 } else if (!strcmp(var, "annotate.demangle_kernel")) {
3191 symbol_conf.demangle_kernel = perf_config_bool("demangle_kernel", value);
3193 pr_debug("%s variable unknown, ignoring...", var);
3199 void annotation_config__init(struct annotation_options *opt)
3201 perf_config(annotation__config, opt);
3204 static unsigned int parse_percent_type(char *str1, char *str2)
3206 unsigned int type = (unsigned int) -1;
3208 if (!strcmp("period", str1)) {
3209 if (!strcmp("local", str2))
3210 type = PERCENT_PERIOD_LOCAL;
3211 else if (!strcmp("global", str2))
3212 type = PERCENT_PERIOD_GLOBAL;
3215 if (!strcmp("hits", str1)) {
3216 if (!strcmp("local", str2))
3217 type = PERCENT_HITS_LOCAL;
3218 else if (!strcmp("global", str2))
3219 type = PERCENT_HITS_GLOBAL;
3225 int annotate_parse_percent_type(const struct option *opt, const char *_str,
3226 int unset __maybe_unused)
3228 struct annotation_options *opts = opt->value;
3233 str1 = strdup(_str);
3237 str2 = strchr(str1, '-');
3243 type = parse_percent_type(str1, str2);
3244 if (type == (unsigned int) -1)
3245 type = parse_percent_type(str2, str1);
3246 if (type != (unsigned int) -1) {
3247 opts->percent_type = type;
3256 int annotate_check_args(struct annotation_options *args)
3258 if (args->prefix_strip && !args->prefix) {
3259 pr_err("--prefix-strip requires --prefix\n");