forked from Minki/linux
perf annotate: Add symbol__calc_lines function
Replace symbol__get_source_line() with symbol__calc_lines(), which calculates the source line tree over the struct annotation_line. This will allow us to remove redundant struct source_line in following patches. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20171011150158.11895-19-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
Arnaldo Carvalho de Melo
parent
073ae601ed
commit
8b4c74dc5c
@ -892,6 +892,7 @@ static void annotation_line__delete(struct annotation_line *al)
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{
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void *ptr = (void *) al - al->privsize;
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free_srcline(al->path);
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zfree(&al->line);
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free(ptr);
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}
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@ -1726,21 +1727,21 @@ int symbol__annotate(struct symbol *sym, struct map *map,
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return symbol__calc_percent(sym, evsel);
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}
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static void insert_source_line(struct rb_root *root, struct source_line *src_line)
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static void insert_source_line(struct rb_root *root, struct annotation_line *al)
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{
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struct source_line *iter;
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struct annotation_line *iter;
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struct rb_node **p = &root->rb_node;
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struct rb_node *parent = NULL;
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int i, ret;
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while (*p != NULL) {
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parent = *p;
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iter = rb_entry(parent, struct source_line, node);
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iter = rb_entry(parent, struct annotation_line, rb_node);
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ret = strcmp(iter->path, src_line->path);
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ret = strcmp(iter->path, al->path);
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if (ret == 0) {
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for (i = 0; i < src_line->nr_pcnt; i++)
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iter->samples[i].percent_sum += src_line->samples[i].percent;
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for (i = 0; i < al->samples_nr; i++)
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iter->samples[i].percent_sum += al->samples[i].percent;
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return;
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}
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@ -1750,18 +1751,18 @@ static void insert_source_line(struct rb_root *root, struct source_line *src_lin
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p = &(*p)->rb_right;
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}
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for (i = 0; i < src_line->nr_pcnt; i++)
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src_line->samples[i].percent_sum = src_line->samples[i].percent;
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for (i = 0; i < al->samples_nr; i++)
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al->samples[i].percent_sum = al->samples[i].percent;
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rb_link_node(&src_line->node, parent, p);
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rb_insert_color(&src_line->node, root);
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rb_link_node(&al->rb_node, parent, p);
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rb_insert_color(&al->rb_node, root);
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}
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static int cmp_source_line(struct source_line *a, struct source_line *b)
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static int cmp_source_line(struct annotation_line *a, struct annotation_line *b)
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{
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int i;
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for (i = 0; i < a->nr_pcnt; i++) {
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for (i = 0; i < a->samples_nr; i++) {
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if (a->samples[i].percent_sum == b->samples[i].percent_sum)
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continue;
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return a->samples[i].percent_sum > b->samples[i].percent_sum;
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@ -1770,135 +1771,47 @@ static int cmp_source_line(struct source_line *a, struct source_line *b)
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return 0;
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}
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static void __resort_source_line(struct rb_root *root, struct source_line *src_line)
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static void __resort_source_line(struct rb_root *root, struct annotation_line *al)
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{
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struct source_line *iter;
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struct annotation_line *iter;
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struct rb_node **p = &root->rb_node;
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struct rb_node *parent = NULL;
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while (*p != NULL) {
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parent = *p;
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iter = rb_entry(parent, struct source_line, node);
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iter = rb_entry(parent, struct annotation_line, rb_node);
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if (cmp_source_line(src_line, iter))
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if (cmp_source_line(al, iter))
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p = &(*p)->rb_left;
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else
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p = &(*p)->rb_right;
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}
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rb_link_node(&src_line->node, parent, p);
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rb_insert_color(&src_line->node, root);
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rb_link_node(&al->rb_node, parent, p);
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rb_insert_color(&al->rb_node, root);
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}
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static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
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{
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struct source_line *src_line;
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struct annotation_line *al;
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struct rb_node *node;
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node = rb_first(src_root);
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while (node) {
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struct rb_node *next;
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src_line = rb_entry(node, struct source_line, node);
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al = rb_entry(node, struct annotation_line, rb_node);
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next = rb_next(node);
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rb_erase(node, src_root);
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__resort_source_line(dest_root, src_line);
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__resort_source_line(dest_root, al);
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node = next;
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}
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}
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static void symbol__free_source_line(struct symbol *sym, int len)
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{
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struct annotation *notes = symbol__annotation(sym);
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struct source_line *src_line = notes->src->lines;
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size_t sizeof_src_line;
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int i;
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sizeof_src_line = sizeof(*src_line) +
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(sizeof(src_line->samples) * (src_line->nr_pcnt - 1));
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for (i = 0; i < len; i++) {
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free_srcline(src_line->path);
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src_line = (void *)src_line + sizeof_src_line;
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}
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zfree(¬es->src->lines);
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}
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/* Get the filename:line for the colored entries */
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static int symbol__get_source_line(struct symbol *sym, struct map *map,
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struct perf_evsel *evsel,
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struct rb_root *root, int len)
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{
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u64 start;
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int i, k;
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int evidx = evsel->idx;
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struct source_line *src_line;
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struct annotation *notes = symbol__annotation(sym);
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struct sym_hist *h = annotation__histogram(notes, evidx);
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struct rb_root tmp_root = RB_ROOT;
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int nr_pcnt = 1;
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u64 nr_samples = h->nr_samples;
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size_t sizeof_src_line = sizeof(struct source_line);
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if (perf_evsel__is_group_event(evsel)) {
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for (i = 1; i < evsel->nr_members; i++) {
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h = annotation__histogram(notes, evidx + i);
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nr_samples += h->nr_samples;
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}
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nr_pcnt = evsel->nr_members;
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sizeof_src_line += (nr_pcnt - 1) * sizeof(src_line->samples);
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}
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if (!nr_samples)
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return 0;
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src_line = notes->src->lines = calloc(len, sizeof_src_line);
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if (!notes->src->lines)
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return -1;
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start = map__rip_2objdump(map, sym->start);
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for (i = 0; i < len; i++) {
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u64 offset;
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double percent_max = 0.0;
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src_line->nr_pcnt = nr_pcnt;
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for (k = 0; k < nr_pcnt; k++) {
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double percent = 0.0;
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h = annotation__histogram(notes, evidx + k);
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nr_samples = h->addr[i].nr_samples;
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if (h->nr_samples)
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percent = 100.0 * nr_samples / h->nr_samples;
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if (percent > percent_max)
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percent_max = percent;
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src_line->samples[k].percent = percent;
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src_line->samples[k].nr = nr_samples;
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}
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if (percent_max <= 0.5)
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goto next;
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offset = start + i;
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src_line->path = get_srcline(map->dso, offset, NULL,
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false, true);
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insert_source_line(&tmp_root, src_line);
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next:
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src_line = (void *)src_line + sizeof_src_line;
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}
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resort_source_line(root, &tmp_root);
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return 0;
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}
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static void print_summary(struct rb_root *root, const char *filename)
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{
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struct source_line *src_line;
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struct annotation_line *al;
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struct rb_node *node;
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printf("\nSorted summary for file %s\n", filename);
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@ -1916,9 +1829,9 @@ static void print_summary(struct rb_root *root, const char *filename)
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char *path;
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int i;
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src_line = rb_entry(node, struct source_line, node);
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for (i = 0; i < src_line->nr_pcnt; i++) {
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percent = src_line->samples[i].percent_sum;
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al = rb_entry(node, struct annotation_line, rb_node);
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for (i = 0; i < al->samples_nr; i++) {
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percent = al->samples[i].percent_sum;
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color = get_percent_color(percent);
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color_fprintf(stdout, color, " %7.2f", percent);
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@ -1926,7 +1839,7 @@ static void print_summary(struct rb_root *root, const char *filename)
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percent_max = percent;
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}
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path = src_line->path;
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path = al->path;
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color = get_percent_color(percent_max);
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color_fprintf(stdout, color, " %s\n", path);
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@ -2091,29 +2004,62 @@ size_t disasm__fprintf(struct list_head *head, FILE *fp)
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return printed;
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}
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static void annotation__calc_lines(struct annotation *notes, struct map *map,
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struct rb_root *root, u64 start)
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{
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struct annotation_line *al;
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struct rb_root tmp_root = RB_ROOT;
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list_for_each_entry(al, ¬es->src->source, node) {
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double percent_max = 0.0;
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int i;
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for (i = 0; i < al->samples_nr; i++) {
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struct annotation_data *sample;
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sample = &al->samples[i];
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if (sample->percent > percent_max)
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percent_max = sample->percent;
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}
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if (percent_max <= 0.5)
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continue;
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al->path = get_srcline(map->dso, start + al->offset, NULL, false, true);
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insert_source_line(&tmp_root, al);
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}
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resort_source_line(root, &tmp_root);
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}
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static void symbol__calc_lines(struct symbol *sym, struct map *map,
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struct rb_root *root)
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{
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struct annotation *notes = symbol__annotation(sym);
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u64 start = map__rip_2objdump(map, sym->start);
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annotation__calc_lines(notes, map, root, start);
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}
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int symbol__tty_annotate(struct symbol *sym, struct map *map,
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struct perf_evsel *evsel, bool print_lines,
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bool full_paths, int min_pcnt, int max_lines)
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{
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struct dso *dso = map->dso;
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struct rb_root source_line = RB_ROOT;
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u64 len;
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if (symbol__annotate(sym, map, evsel, 0, NULL, NULL) < 0)
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return -1;
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len = symbol__size(sym);
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if (print_lines) {
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srcline_full_filename = full_paths;
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symbol__get_source_line(sym, map, evsel, &source_line, len);
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symbol__calc_lines(sym, map, &source_line);
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print_summary(&source_line, dso->long_name);
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}
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symbol__annotate_printf(sym, map, evsel, full_paths,
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min_pcnt, max_lines, 0);
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if (print_lines)
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symbol__free_source_line(sym, len);
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annotated_source__purge(symbol__annotation(sym)->src);
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@ -66,6 +66,7 @@ struct sym_hist_entry {
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struct annotation_data {
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double percent;
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double percent_sum;
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struct sym_hist_entry he;
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};
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@ -78,6 +79,7 @@ struct annotation_line {
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float ipc;
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u64 cycles;
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size_t privsize;
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char *path;
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int samples_nr;
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struct annotation_data samples[0];
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};
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