| #include "util.h" |
| #include "build-id.h" |
| #include "hist.h" |
| #include "session.h" |
| #include "sort.h" |
| #include <math.h> |
| |
| enum hist_filter { |
| HIST_FILTER__DSO, |
| HIST_FILTER__THREAD, |
| HIST_FILTER__PARENT, |
| }; |
| |
| struct callchain_param callchain_param = { |
| .mode = CHAIN_GRAPH_REL, |
| .min_percent = 0.5 |
| }; |
| |
| u16 hists__col_len(struct hists *self, enum hist_column col) |
| { |
| return self->col_len[col]; |
| } |
| |
| void hists__set_col_len(struct hists *self, enum hist_column col, u16 len) |
| { |
| self->col_len[col] = len; |
| } |
| |
| bool hists__new_col_len(struct hists *self, enum hist_column col, u16 len) |
| { |
| if (len > hists__col_len(self, col)) { |
| hists__set_col_len(self, col, len); |
| return true; |
| } |
| return false; |
| } |
| |
| static void hists__reset_col_len(struct hists *self) |
| { |
| enum hist_column col; |
| |
| for (col = 0; col < HISTC_NR_COLS; ++col) |
| hists__set_col_len(self, col, 0); |
| } |
| |
| static void hists__calc_col_len(struct hists *self, struct hist_entry *h) |
| { |
| u16 len; |
| |
| if (h->ms.sym) |
| hists__new_col_len(self, HISTC_SYMBOL, h->ms.sym->namelen); |
| |
| len = thread__comm_len(h->thread); |
| if (hists__new_col_len(self, HISTC_COMM, len)) |
| hists__set_col_len(self, HISTC_THREAD, len + 6); |
| |
| if (h->ms.map) { |
| len = dso__name_len(h->ms.map->dso); |
| hists__new_col_len(self, HISTC_DSO, len); |
| } |
| } |
| |
| static void hist_entry__add_cpumode_period(struct hist_entry *self, |
| unsigned int cpumode, u64 period) |
| { |
| switch (cpumode) { |
| case PERF_RECORD_MISC_KERNEL: |
| self->period_sys += period; |
| break; |
| case PERF_RECORD_MISC_USER: |
| self->period_us += period; |
| break; |
| case PERF_RECORD_MISC_GUEST_KERNEL: |
| self->period_guest_sys += period; |
| break; |
| case PERF_RECORD_MISC_GUEST_USER: |
| self->period_guest_us += period; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /* |
| * histogram, sorted on item, collects periods |
| */ |
| |
| static struct hist_entry *hist_entry__new(struct hist_entry *template) |
| { |
| size_t callchain_size = symbol_conf.use_callchain ? sizeof(struct callchain_root) : 0; |
| struct hist_entry *self = malloc(sizeof(*self) + callchain_size); |
| |
| if (self != NULL) { |
| *self = *template; |
| self->nr_events = 1; |
| if (self->ms.map) |
| self->ms.map->referenced = true; |
| if (symbol_conf.use_callchain) |
| callchain_init(self->callchain); |
| } |
| |
| return self; |
| } |
| |
| static void hists__inc_nr_entries(struct hists *self, struct hist_entry *h) |
| { |
| if (!h->filtered) { |
| hists__calc_col_len(self, h); |
| ++self->nr_entries; |
| } |
| } |
| |
| static u8 symbol__parent_filter(const struct symbol *parent) |
| { |
| if (symbol_conf.exclude_other && parent == NULL) |
| return 1 << HIST_FILTER__PARENT; |
| return 0; |
| } |
| |
| struct hist_entry *__hists__add_entry(struct hists *self, |
| struct addr_location *al, |
| struct symbol *sym_parent, u64 period) |
| { |
| struct rb_node **p = &self->entries.rb_node; |
| struct rb_node *parent = NULL; |
| struct hist_entry *he; |
| struct hist_entry entry = { |
| .thread = al->thread, |
| .ms = { |
| .map = al->map, |
| .sym = al->sym, |
| }, |
| .cpu = al->cpu, |
| .ip = al->addr, |
| .level = al->level, |
| .period = period, |
| .parent = sym_parent, |
| .filtered = symbol__parent_filter(sym_parent), |
| }; |
| int cmp; |
| |
| while (*p != NULL) { |
| parent = *p; |
| he = rb_entry(parent, struct hist_entry, rb_node); |
| |
| cmp = hist_entry__cmp(&entry, he); |
| |
| if (!cmp) { |
| he->period += period; |
| ++he->nr_events; |
| goto out; |
| } |
| |
| if (cmp < 0) |
| p = &(*p)->rb_left; |
| else |
| p = &(*p)->rb_right; |
| } |
| |
| he = hist_entry__new(&entry); |
| if (!he) |
| return NULL; |
| rb_link_node(&he->rb_node, parent, p); |
| rb_insert_color(&he->rb_node, &self->entries); |
| hists__inc_nr_entries(self, he); |
| out: |
| hist_entry__add_cpumode_period(he, al->cpumode, period); |
| return he; |
| } |
| |
| int64_t |
| hist_entry__cmp(struct hist_entry *left, struct hist_entry *right) |
| { |
| struct sort_entry *se; |
| int64_t cmp = 0; |
| |
| list_for_each_entry(se, &hist_entry__sort_list, list) { |
| cmp = se->se_cmp(left, right); |
| if (cmp) |
| break; |
| } |
| |
| return cmp; |
| } |
| |
| int64_t |
| hist_entry__collapse(struct hist_entry *left, struct hist_entry *right) |
| { |
| struct sort_entry *se; |
| int64_t cmp = 0; |
| |
| list_for_each_entry(se, &hist_entry__sort_list, list) { |
| int64_t (*f)(struct hist_entry *, struct hist_entry *); |
| |
| f = se->se_collapse ?: se->se_cmp; |
| |
| cmp = f(left, right); |
| if (cmp) |
| break; |
| } |
| |
| return cmp; |
| } |
| |
| void hist_entry__free(struct hist_entry *he) |
| { |
| free(he); |
| } |
| |
| /* |
| * collapse the histogram |
| */ |
| |
| static bool hists__collapse_insert_entry(struct hists *self, |
| struct rb_root *root, |
| struct hist_entry *he) |
| { |
| struct rb_node **p = &root->rb_node; |
| struct rb_node *parent = NULL; |
| struct hist_entry *iter; |
| int64_t cmp; |
| |
| while (*p != NULL) { |
| parent = *p; |
| iter = rb_entry(parent, struct hist_entry, rb_node); |
| |
| cmp = hist_entry__collapse(iter, he); |
| |
| if (!cmp) { |
| iter->period += he->period; |
| if (symbol_conf.use_callchain) { |
| callchain_cursor_reset(&self->callchain_cursor); |
| callchain_merge(&self->callchain_cursor, iter->callchain, |
| he->callchain); |
| } |
| hist_entry__free(he); |
| return false; |
| } |
| |
| if (cmp < 0) |
| p = &(*p)->rb_left; |
| else |
| p = &(*p)->rb_right; |
| } |
| |
| rb_link_node(&he->rb_node, parent, p); |
| rb_insert_color(&he->rb_node, root); |
| return true; |
| } |
| |
| void hists__collapse_resort(struct hists *self) |
| { |
| struct rb_root tmp; |
| struct rb_node *next; |
| struct hist_entry *n; |
| |
| if (!sort__need_collapse) |
| return; |
| |
| tmp = RB_ROOT; |
| next = rb_first(&self->entries); |
| self->nr_entries = 0; |
| hists__reset_col_len(self); |
| |
| while (next) { |
| n = rb_entry(next, struct hist_entry, rb_node); |
| next = rb_next(&n->rb_node); |
| |
| rb_erase(&n->rb_node, &self->entries); |
| if (hists__collapse_insert_entry(self, &tmp, n)) |
| hists__inc_nr_entries(self, n); |
| } |
| |
| self->entries = tmp; |
| } |
| |
| /* |
| * reverse the map, sort on period. |
| */ |
| |
| static void __hists__insert_output_entry(struct rb_root *entries, |
| struct hist_entry *he, |
| u64 min_callchain_hits) |
| { |
| struct rb_node **p = &entries->rb_node; |
| struct rb_node *parent = NULL; |
| struct hist_entry *iter; |
| |
| if (symbol_conf.use_callchain) |
| callchain_param.sort(&he->sorted_chain, he->callchain, |
| min_callchain_hits, &callchain_param); |
| |
| while (*p != NULL) { |
| parent = *p; |
| iter = rb_entry(parent, struct hist_entry, rb_node); |
| |
| if (he->period > iter->period) |
| p = &(*p)->rb_left; |
| else |
| p = &(*p)->rb_right; |
| } |
| |
| rb_link_node(&he->rb_node, parent, p); |
| rb_insert_color(&he->rb_node, entries); |
| } |
| |
| void hists__output_resort(struct hists *self) |
| { |
| struct rb_root tmp; |
| struct rb_node *next; |
| struct hist_entry *n; |
| u64 min_callchain_hits; |
| |
| min_callchain_hits = self->stats.total_period * (callchain_param.min_percent / 100); |
| |
| tmp = RB_ROOT; |
| next = rb_first(&self->entries); |
| |
| self->nr_entries = 0; |
| hists__reset_col_len(self); |
| |
| while (next) { |
| n = rb_entry(next, struct hist_entry, rb_node); |
| next = rb_next(&n->rb_node); |
| |
| rb_erase(&n->rb_node, &self->entries); |
| __hists__insert_output_entry(&tmp, n, min_callchain_hits); |
| hists__inc_nr_entries(self, n); |
| } |
| |
| self->entries = tmp; |
| } |
| |
| static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin) |
| { |
| int i; |
| int ret = fprintf(fp, " "); |
| |
| for (i = 0; i < left_margin; i++) |
| ret += fprintf(fp, " "); |
| |
| return ret; |
| } |
| |
| static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask, |
| int left_margin) |
| { |
| int i; |
| size_t ret = callchain__fprintf_left_margin(fp, left_margin); |
| |
| for (i = 0; i < depth; i++) |
| if (depth_mask & (1 << i)) |
| ret += fprintf(fp, "| "); |
| else |
| ret += fprintf(fp, " "); |
| |
| ret += fprintf(fp, "\n"); |
| |
| return ret; |
| } |
| |
| static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain, |
| int depth, int depth_mask, int period, |
| u64 total_samples, u64 hits, |
| int left_margin) |
| { |
| int i; |
| size_t ret = 0; |
| |
| ret += callchain__fprintf_left_margin(fp, left_margin); |
| for (i = 0; i < depth; i++) { |
| if (depth_mask & (1 << i)) |
| ret += fprintf(fp, "|"); |
| else |
| ret += fprintf(fp, " "); |
| if (!period && i == depth - 1) { |
| double percent; |
| |
| percent = hits * 100.0 / total_samples; |
| ret += percent_color_fprintf(fp, "--%2.2f%%-- ", percent); |
| } else |
| ret += fprintf(fp, "%s", " "); |
| } |
| if (chain->ms.sym) |
| ret += fprintf(fp, "%s\n", chain->ms.sym->name); |
| else |
| ret += fprintf(fp, "%p\n", (void *)(long)chain->ip); |
| |
| return ret; |
| } |
| |
| static struct symbol *rem_sq_bracket; |
| static struct callchain_list rem_hits; |
| |
| static void init_rem_hits(void) |
| { |
| rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6); |
| if (!rem_sq_bracket) { |
| fprintf(stderr, "Not enough memory to display remaining hits\n"); |
| return; |
| } |
| |
| strcpy(rem_sq_bracket->name, "[...]"); |
| rem_hits.ms.sym = rem_sq_bracket; |
| } |
| |
| static size_t __callchain__fprintf_graph(FILE *fp, struct callchain_node *self, |
| u64 total_samples, int depth, |
| int depth_mask, int left_margin) |
| { |
| struct rb_node *node, *next; |
| struct callchain_node *child; |
| struct callchain_list *chain; |
| int new_depth_mask = depth_mask; |
| u64 new_total; |
| u64 remaining; |
| size_t ret = 0; |
| int i; |
| uint entries_printed = 0; |
| |
| if (callchain_param.mode == CHAIN_GRAPH_REL) |
| new_total = self->children_hit; |
| else |
| new_total = total_samples; |
| |
| remaining = new_total; |
| |
| node = rb_first(&self->rb_root); |
| while (node) { |
| u64 cumul; |
| |
| child = rb_entry(node, struct callchain_node, rb_node); |
| cumul = callchain_cumul_hits(child); |
| remaining -= cumul; |
| |
| /* |
| * The depth mask manages the output of pipes that show |
| * the depth. We don't want to keep the pipes of the current |
| * level for the last child of this depth. |
| * Except if we have remaining filtered hits. They will |
| * supersede the last child |
| */ |
| next = rb_next(node); |
| if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining)) |
| new_depth_mask &= ~(1 << (depth - 1)); |
| |
| /* |
| * But we keep the older depth mask for the line separator |
| * to keep the level link until we reach the last child |
| */ |
| ret += ipchain__fprintf_graph_line(fp, depth, depth_mask, |
| left_margin); |
| i = 0; |
| list_for_each_entry(chain, &child->val, list) { |
| ret += ipchain__fprintf_graph(fp, chain, depth, |
| new_depth_mask, i++, |
| new_total, |
| cumul, |
| left_margin); |
| } |
| ret += __callchain__fprintf_graph(fp, child, new_total, |
| depth + 1, |
| new_depth_mask | (1 << depth), |
| left_margin); |
| node = next; |
| if (++entries_printed == callchain_param.print_limit) |
| break; |
| } |
| |
| if (callchain_param.mode == CHAIN_GRAPH_REL && |
| remaining && remaining != new_total) { |
| |
| if (!rem_sq_bracket) |
| return ret; |
| |
| new_depth_mask &= ~(1 << (depth - 1)); |
| |
| ret += ipchain__fprintf_graph(fp, &rem_hits, depth, |
| new_depth_mask, 0, new_total, |
| remaining, left_margin); |
| } |
| |
| return ret; |
| } |
| |
| static size_t callchain__fprintf_graph(FILE *fp, struct callchain_node *self, |
| u64 total_samples, int left_margin) |
| { |
| struct callchain_list *chain; |
| bool printed = false; |
| int i = 0; |
| int ret = 0; |
| u32 entries_printed = 0; |
| |
| list_for_each_entry(chain, &self->val, list) { |
| if (!i++ && sort__first_dimension == SORT_SYM) |
| continue; |
| |
| if (!printed) { |
| ret += callchain__fprintf_left_margin(fp, left_margin); |
| ret += fprintf(fp, "|\n"); |
| ret += callchain__fprintf_left_margin(fp, left_margin); |
| ret += fprintf(fp, "---"); |
| |
| left_margin += 3; |
| printed = true; |
| } else |
| ret += callchain__fprintf_left_margin(fp, left_margin); |
| |
| if (chain->ms.sym) |
| ret += fprintf(fp, " %s\n", chain->ms.sym->name); |
| else |
| ret += fprintf(fp, " %p\n", (void *)(long)chain->ip); |
| |
| if (++entries_printed == callchain_param.print_limit) |
| break; |
| } |
| |
| ret += __callchain__fprintf_graph(fp, self, total_samples, 1, 1, left_margin); |
| |
| return ret; |
| } |
| |
| static size_t callchain__fprintf_flat(FILE *fp, struct callchain_node *self, |
| u64 total_samples) |
| { |
| struct callchain_list *chain; |
| size_t ret = 0; |
| |
| if (!self) |
| return 0; |
| |
| ret += callchain__fprintf_flat(fp, self->parent, total_samples); |
| |
| |
| list_for_each_entry(chain, &self->val, list) { |
| if (chain->ip >= PERF_CONTEXT_MAX) |
| continue; |
| if (chain->ms.sym) |
| ret += fprintf(fp, " %s\n", chain->ms.sym->name); |
| else |
| ret += fprintf(fp, " %p\n", |
| (void *)(long)chain->ip); |
| } |
| |
| return ret; |
| } |
| |
| static size_t hist_entry_callchain__fprintf(FILE *fp, struct hist_entry *self, |
| u64 total_samples, int left_margin) |
| { |
| struct rb_node *rb_node; |
| struct callchain_node *chain; |
| size_t ret = 0; |
| u32 entries_printed = 0; |
| |
| rb_node = rb_first(&self->sorted_chain); |
| while (rb_node) { |
| double percent; |
| |
| chain = rb_entry(rb_node, struct callchain_node, rb_node); |
| percent = chain->hit * 100.0 / total_samples; |
| switch (callchain_param.mode) { |
| case CHAIN_FLAT: |
| ret += percent_color_fprintf(fp, " %6.2f%%\n", |
| percent); |
| ret += callchain__fprintf_flat(fp, chain, total_samples); |
| break; |
| case CHAIN_GRAPH_ABS: /* Falldown */ |
| case CHAIN_GRAPH_REL: |
| ret += callchain__fprintf_graph(fp, chain, total_samples, |
| left_margin); |
| case CHAIN_NONE: |
| default: |
| break; |
| } |
| ret += fprintf(fp, "\n"); |
| if (++entries_printed == callchain_param.print_limit) |
| break; |
| rb_node = rb_next(rb_node); |
| } |
| |
| return ret; |
| } |
| |
| int hist_entry__snprintf(struct hist_entry *self, char *s, size_t size, |
| struct hists *hists, struct hists *pair_hists, |
| bool show_displacement, long displacement, |
| bool color, u64 session_total) |
| { |
| struct sort_entry *se; |
| u64 period, total, period_sys, period_us, period_guest_sys, period_guest_us; |
| const char *sep = symbol_conf.field_sep; |
| int ret; |
| |
| if (symbol_conf.exclude_other && !self->parent) |
| return 0; |
| |
| if (pair_hists) { |
| period = self->pair ? self->pair->period : 0; |
| total = pair_hists->stats.total_period; |
| period_sys = self->pair ? self->pair->period_sys : 0; |
| period_us = self->pair ? self->pair->period_us : 0; |
| period_guest_sys = self->pair ? self->pair->period_guest_sys : 0; |
| period_guest_us = self->pair ? self->pair->period_guest_us : 0; |
| } else { |
| period = self->period; |
| total = session_total; |
| period_sys = self->period_sys; |
| period_us = self->period_us; |
| period_guest_sys = self->period_guest_sys; |
| period_guest_us = self->period_guest_us; |
| } |
| |
| if (total) { |
| if (color) |
| ret = percent_color_snprintf(s, size, |
| sep ? "%.2f" : " %6.2f%%", |
| (period * 100.0) / total); |
| else |
| ret = snprintf(s, size, sep ? "%.2f" : " %6.2f%%", |
| (period * 100.0) / total); |
| if (symbol_conf.show_cpu_utilization) { |
| ret += percent_color_snprintf(s + ret, size - ret, |
| sep ? "%.2f" : " %6.2f%%", |
| (period_sys * 100.0) / total); |
| ret += percent_color_snprintf(s + ret, size - ret, |
| sep ? "%.2f" : " %6.2f%%", |
| (period_us * 100.0) / total); |
| if (perf_guest) { |
| ret += percent_color_snprintf(s + ret, |
| size - ret, |
| sep ? "%.2f" : " %6.2f%%", |
| (period_guest_sys * 100.0) / |
| total); |
| ret += percent_color_snprintf(s + ret, |
| size - ret, |
| sep ? "%.2f" : " %6.2f%%", |
| (period_guest_us * 100.0) / |
| total); |
| } |
| } |
| } else |
| ret = snprintf(s, size, sep ? "%" PRIu64 : "%12" PRIu64 " ", period); |
| |
| if (symbol_conf.show_nr_samples) { |
| if (sep) |
| ret += snprintf(s + ret, size - ret, "%c%" PRIu64, *sep, period); |
| else |
| ret += snprintf(s + ret, size - ret, "%11" PRIu64, period); |
| } |
| |
| if (pair_hists) { |
| char bf[32]; |
| double old_percent = 0, new_percent = 0, diff; |
| |
| if (total > 0) |
| old_percent = (period * 100.0) / total; |
| if (session_total > 0) |
| new_percent = (self->period * 100.0) / session_total; |
| |
| diff = new_percent - old_percent; |
| |
| if (fabs(diff) >= 0.01) |
| snprintf(bf, sizeof(bf), "%+4.2F%%", diff); |
| else |
| snprintf(bf, sizeof(bf), " "); |
| |
| if (sep) |
| ret += snprintf(s + ret, size - ret, "%c%s", *sep, bf); |
| else |
| ret += snprintf(s + ret, size - ret, "%11.11s", bf); |
| |
| if (show_displacement) { |
| if (displacement) |
| snprintf(bf, sizeof(bf), "%+4ld", displacement); |
| else |
| snprintf(bf, sizeof(bf), " "); |
| |
| if (sep) |
| ret += snprintf(s + ret, size - ret, "%c%s", *sep, bf); |
| else |
| ret += snprintf(s + ret, size - ret, "%6.6s", bf); |
| } |
| } |
| |
| list_for_each_entry(se, &hist_entry__sort_list, list) { |
| if (se->elide) |
| continue; |
| |
| ret += snprintf(s + ret, size - ret, "%s", sep ?: " "); |
| ret += se->se_snprintf(self, s + ret, size - ret, |
| hists__col_len(hists, se->se_width_idx)); |
| } |
| |
| return ret; |
| } |
| |
| int hist_entry__fprintf(struct hist_entry *self, struct hists *hists, |
| struct hists *pair_hists, bool show_displacement, |
| long displacement, FILE *fp, u64 session_total) |
| { |
| char bf[512]; |
| hist_entry__snprintf(self, bf, sizeof(bf), hists, pair_hists, |
| show_displacement, displacement, |
| true, session_total); |
| return fprintf(fp, "%s\n", bf); |
| } |
| |
| static size_t hist_entry__fprintf_callchain(struct hist_entry *self, |
| struct hists *hists, FILE *fp, |
| u64 session_total) |
| { |
| int left_margin = 0; |
| |
| if (sort__first_dimension == SORT_COMM) { |
| struct sort_entry *se = list_first_entry(&hist_entry__sort_list, |
| typeof(*se), list); |
| left_margin = hists__col_len(hists, se->se_width_idx); |
| left_margin -= thread__comm_len(self->thread); |
| } |
| |
| return hist_entry_callchain__fprintf(fp, self, session_total, |
| left_margin); |
| } |
| |
| size_t hists__fprintf(struct hists *self, struct hists *pair, |
| bool show_displacement, FILE *fp) |
| { |
| struct sort_entry *se; |
| struct rb_node *nd; |
| size_t ret = 0; |
| unsigned long position = 1; |
| long displacement = 0; |
| unsigned int width; |
| const char *sep = symbol_conf.field_sep; |
| const char *col_width = symbol_conf.col_width_list_str; |
| |
| init_rem_hits(); |
| |
| fprintf(fp, "# %s", pair ? "Baseline" : "Overhead"); |
| |
| if (symbol_conf.show_nr_samples) { |
| if (sep) |
| fprintf(fp, "%cSamples", *sep); |
| else |
| fputs(" Samples ", fp); |
| } |
| |
| if (symbol_conf.show_cpu_utilization) { |
| if (sep) { |
| ret += fprintf(fp, "%csys", *sep); |
| ret += fprintf(fp, "%cus", *sep); |
| if (perf_guest) { |
| ret += fprintf(fp, "%cguest sys", *sep); |
| ret += fprintf(fp, "%cguest us", *sep); |
| } |
| } else { |
| ret += fprintf(fp, " sys "); |
| ret += fprintf(fp, " us "); |
| if (perf_guest) { |
| ret += fprintf(fp, " guest sys "); |
| ret += fprintf(fp, " guest us "); |
| } |
| } |
| } |
| |
| if (pair) { |
| if (sep) |
| ret += fprintf(fp, "%cDelta", *sep); |
| else |
| ret += fprintf(fp, " Delta "); |
| |
| if (show_displacement) { |
| if (sep) |
| ret += fprintf(fp, "%cDisplacement", *sep); |
| else |
| ret += fprintf(fp, " Displ"); |
| } |
| } |
| |
| list_for_each_entry(se, &hist_entry__sort_list, list) { |
| if (se->elide) |
| continue; |
| if (sep) { |
| fprintf(fp, "%c%s", *sep, se->se_header); |
| continue; |
| } |
| width = strlen(se->se_header); |
| if (symbol_conf.col_width_list_str) { |
| if (col_width) { |
| hists__set_col_len(self, se->se_width_idx, |
| atoi(col_width)); |
| col_width = strchr(col_width, ','); |
| if (col_width) |
| ++col_width; |
| } |
| } |
| if (!hists__new_col_len(self, se->se_width_idx, width)) |
| width = hists__col_len(self, se->se_width_idx); |
| fprintf(fp, " %*s", width, se->se_header); |
| } |
| fprintf(fp, "\n"); |
| |
| if (sep) |
| goto print_entries; |
| |
| fprintf(fp, "# ........"); |
| if (symbol_conf.show_nr_samples) |
| fprintf(fp, " .........."); |
| if (pair) { |
| fprintf(fp, " .........."); |
| if (show_displacement) |
| fprintf(fp, " ....."); |
| } |
| list_for_each_entry(se, &hist_entry__sort_list, list) { |
| unsigned int i; |
| |
| if (se->elide) |
| continue; |
| |
| fprintf(fp, " "); |
| width = hists__col_len(self, se->se_width_idx); |
| if (width == 0) |
| width = strlen(se->se_header); |
| for (i = 0; i < width; i++) |
| fprintf(fp, "."); |
| } |
| |
| fprintf(fp, "\n#\n"); |
| |
| print_entries: |
| for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) { |
| struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); |
| |
| if (show_displacement) { |
| if (h->pair != NULL) |
| displacement = ((long)h->pair->position - |
| (long)position); |
| else |
| displacement = 0; |
| ++position; |
| } |
| ret += hist_entry__fprintf(h, self, pair, show_displacement, |
| displacement, fp, self->stats.total_period); |
| |
| if (symbol_conf.use_callchain) |
| ret += hist_entry__fprintf_callchain(h, self, fp, |
| self->stats.total_period); |
| if (h->ms.map == NULL && verbose > 1) { |
| __map_groups__fprintf_maps(&h->thread->mg, |
| MAP__FUNCTION, verbose, fp); |
| fprintf(fp, "%.10s end\n", graph_dotted_line); |
| } |
| } |
| |
| free(rem_sq_bracket); |
| |
| return ret; |
| } |
| |
| /* |
| * See hists__fprintf to match the column widths |
| */ |
| unsigned int hists__sort_list_width(struct hists *self) |
| { |
| struct sort_entry *se; |
| int ret = 9; /* total % */ |
| |
| if (symbol_conf.show_cpu_utilization) { |
| ret += 7; /* count_sys % */ |
| ret += 6; /* count_us % */ |
| if (perf_guest) { |
| ret += 13; /* count_guest_sys % */ |
| ret += 12; /* count_guest_us % */ |
| } |
| } |
| |
| if (symbol_conf.show_nr_samples) |
| ret += 11; |
| |
| list_for_each_entry(se, &hist_entry__sort_list, list) |
| if (!se->elide) |
| ret += 2 + hists__col_len(self, se->se_width_idx); |
| |
| if (verbose) /* Addr + origin */ |
| ret += 3 + BITS_PER_LONG / 4; |
| |
| return ret; |
| } |
| |
| static void hists__remove_entry_filter(struct hists *self, struct hist_entry *h, |
| enum hist_filter filter) |
| { |
| h->filtered &= ~(1 << filter); |
| if (h->filtered) |
| return; |
| |
| ++self->nr_entries; |
| if (h->ms.unfolded) |
| self->nr_entries += h->nr_rows; |
| h->row_offset = 0; |
| self->stats.total_period += h->period; |
| self->stats.nr_events[PERF_RECORD_SAMPLE] += h->nr_events; |
| |
| hists__calc_col_len(self, h); |
| } |
| |
| void hists__filter_by_dso(struct hists *self, const struct dso *dso) |
| { |
| struct rb_node *nd; |
| |
| self->nr_entries = self->stats.total_period = 0; |
| self->stats.nr_events[PERF_RECORD_SAMPLE] = 0; |
| hists__reset_col_len(self); |
| |
| for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) { |
| struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); |
| |
| if (symbol_conf.exclude_other && !h->parent) |
| continue; |
| |
| if (dso != NULL && (h->ms.map == NULL || h->ms.map->dso != dso)) { |
| h->filtered |= (1 << HIST_FILTER__DSO); |
| continue; |
| } |
| |
| hists__remove_entry_filter(self, h, HIST_FILTER__DSO); |
| } |
| } |
| |
| void hists__filter_by_thread(struct hists *self, const struct thread *thread) |
| { |
| struct rb_node *nd; |
| |
| self->nr_entries = self->stats.total_period = 0; |
| self->stats.nr_events[PERF_RECORD_SAMPLE] = 0; |
| hists__reset_col_len(self); |
| |
| for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) { |
| struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); |
| |
| if (thread != NULL && h->thread != thread) { |
| h->filtered |= (1 << HIST_FILTER__THREAD); |
| continue; |
| } |
| |
| hists__remove_entry_filter(self, h, HIST_FILTER__THREAD); |
| } |
| } |
| |
| static int symbol__alloc_hist(struct symbol *self) |
| { |
| struct sym_priv *priv = symbol__priv(self); |
| const int size = (sizeof(*priv->hist) + |
| (self->end - self->start) * sizeof(u64)); |
| |
| priv->hist = zalloc(size); |
| return priv->hist == NULL ? -1 : 0; |
| } |
| |
| int hist_entry__inc_addr_samples(struct hist_entry *self, u64 ip) |
| { |
| unsigned int sym_size, offset; |
| struct symbol *sym = self->ms.sym; |
| struct sym_priv *priv; |
| struct sym_hist *h; |
| |
| if (!sym || !self->ms.map) |
| return 0; |
| |
| priv = symbol__priv(sym); |
| if (priv->hist == NULL && symbol__alloc_hist(sym) < 0) |
| return -ENOMEM; |
| |
| sym_size = sym->end - sym->start; |
| offset = ip - sym->start; |
| |
| pr_debug3("%s: ip=%#" PRIx64 "\n", __func__, self->ms.map->unmap_ip(self->ms.map, ip)); |
| |
| if (offset >= sym_size) |
| return 0; |
| |
| h = priv->hist; |
| h->sum++; |
| h->ip[offset]++; |
| |
| pr_debug3("%#" PRIx64 " %s: period++ [ip: %#" PRIx64 ", %#" PRIx64 |
| "] => %" PRIu64 "\n", self->ms.sym->start, self->ms.sym->name, |
| ip, ip - self->ms.sym->start, h->ip[offset]); |
| return 0; |
| } |
| |
| static struct objdump_line *objdump_line__new(s64 offset, char *line, size_t privsize) |
| { |
| struct objdump_line *self = malloc(sizeof(*self) + privsize); |
| |
| if (self != NULL) { |
| self->offset = offset; |
| self->line = line; |
| } |
| |
| return self; |
| } |
| |
| void objdump_line__free(struct objdump_line *self) |
| { |
| free(self->line); |
| free(self); |
| } |
| |
| static void objdump__add_line(struct list_head *head, struct objdump_line *line) |
| { |
| list_add_tail(&line->node, head); |
| } |
| |
| struct objdump_line *objdump__get_next_ip_line(struct list_head *head, |
| struct objdump_line *pos) |
| { |
| list_for_each_entry_continue(pos, head, node) |
| if (pos->offset >= 0) |
| return pos; |
| |
| return NULL; |
| } |
| |
| static int hist_entry__parse_objdump_line(struct hist_entry *self, FILE *file, |
| struct list_head *head, size_t privsize) |
| { |
| struct symbol *sym = self->ms.sym; |
| struct objdump_line *objdump_line; |
| char *line = NULL, *tmp, *tmp2, *c; |
| size_t line_len; |
| s64 line_ip, offset = -1; |
| |
| if (getline(&line, &line_len, file) < 0) |
| return -1; |
| |
| if (!line) |
| return -1; |
| |
| while (line_len != 0 && isspace(line[line_len - 1])) |
| line[--line_len] = '\0'; |
| |
| c = strchr(line, '\n'); |
| if (c) |
| *c = 0; |
| |
| line_ip = -1; |
| |
| /* |
| * Strip leading spaces: |
| */ |
| tmp = line; |
| while (*tmp) { |
| if (*tmp != ' ') |
| break; |
| tmp++; |
| } |
| |
| if (*tmp) { |
| /* |
| * Parse hexa addresses followed by ':' |
| */ |
| line_ip = strtoull(tmp, &tmp2, 16); |
| if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0') |
| line_ip = -1; |
| } |
| |
| if (line_ip != -1) { |
| u64 start = map__rip_2objdump(self->ms.map, sym->start), |
| end = map__rip_2objdump(self->ms.map, sym->end); |
| |
| offset = line_ip - start; |
| if (offset < 0 || (u64)line_ip > end) |
| offset = -1; |
| } |
| |
| objdump_line = objdump_line__new(offset, line, privsize); |
| if (objdump_line == NULL) { |
| free(line); |
| return -1; |
| } |
| objdump__add_line(head, objdump_line); |
| |
| return 0; |
| } |
| |
| int hist_entry__annotate(struct hist_entry *self, struct list_head *head, |
| size_t privsize) |
| { |
| struct symbol *sym = self->ms.sym; |
| struct map *map = self->ms.map; |
| struct dso *dso = map->dso; |
| char *filename = dso__build_id_filename(dso, NULL, 0); |
| bool free_filename = true; |
| char command[PATH_MAX * 2]; |
| FILE *file; |
| int err = 0; |
| u64 len; |
| char symfs_filename[PATH_MAX]; |
| |
| if (filename) { |
| snprintf(symfs_filename, sizeof(symfs_filename), "%s%s", |
| symbol_conf.symfs, filename); |
| } |
| |
| if (filename == NULL) { |
| if (dso->has_build_id) { |
| pr_err("Can't annotate %s: not enough memory\n", |
| sym->name); |
| return -ENOMEM; |
| } |
| goto fallback; |
| } else if (readlink(symfs_filename, command, sizeof(command)) < 0 || |
| strstr(command, "[kernel.kallsyms]") || |
| access(symfs_filename, R_OK)) { |
| free(filename); |
| fallback: |
| /* |
| * If we don't have build-ids or the build-id file isn't in the |
| * cache, or is just a kallsyms file, well, lets hope that this |
| * DSO is the same as when 'perf record' ran. |
| */ |
| filename = dso->long_name; |
| snprintf(symfs_filename, sizeof(symfs_filename), "%s%s", |
| symbol_conf.symfs, filename); |
| free_filename = false; |
| } |
| |
| if (dso->origin == DSO__ORIG_KERNEL) { |
| if (dso->annotate_warned) |
| goto out_free_filename; |
| err = -ENOENT; |
| dso->annotate_warned = 1; |
| pr_err("Can't annotate %s: No vmlinux file was found in the " |
| "path\n", sym->name); |
| goto out_free_filename; |
| } |
| |
| pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__, |
| filename, sym->name, map->unmap_ip(map, sym->start), |
| map->unmap_ip(map, sym->end)); |
| |
| len = sym->end - sym->start; |
| |
| pr_debug("annotating [%p] %30s : [%p] %30s\n", |
| dso, dso->long_name, sym, sym->name); |
| |
| snprintf(command, sizeof(command), |
| "objdump --start-address=0x%016" PRIx64 " --stop-address=0x%016" PRIx64 " -dS -C %s|grep -v %s|expand", |
| map__rip_2objdump(map, sym->start), |
| map__rip_2objdump(map, sym->end), |
| symfs_filename, filename); |
| |
| pr_debug("Executing: %s\n", command); |
| |
| file = popen(command, "r"); |
| if (!file) |
| goto out_free_filename; |
| |
| while (!feof(file)) |
| if (hist_entry__parse_objdump_line(self, file, head, privsize) < 0) |
| break; |
| |
| pclose(file); |
| out_free_filename: |
| if (free_filename) |
| free(filename); |
| return err; |
| } |
| |
| void hists__inc_nr_events(struct hists *self, u32 type) |
| { |
| ++self->stats.nr_events[0]; |
| ++self->stats.nr_events[type]; |
| } |
| |
| size_t hists__fprintf_nr_events(struct hists *self, FILE *fp) |
| { |
| int i; |
| size_t ret = 0; |
| |
| for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) { |
| const char *name = event__get_event_name(i); |
| |
| if (!strcmp(name, "UNKNOWN")) |
| continue; |
| |
| ret += fprintf(fp, "%16s events: %10d\n", name, |
| self->stats.nr_events[i]); |
| } |
| |
| return ret; |
| } |