// SPDX-License-Identifier: GPL-2.0
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#include <stdio.h>
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#include <linux/string.h>
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#include "../../util/util.h"
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#include "../../util/hist.h"
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#include "../../util/sort.h"
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#include "../../util/evsel.h"
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#include "../../util/srcline.h"
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#include "../../util/string2.h"
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#include "../../util/thread.h"
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#include "../../util/sane_ctype.h"
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static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin)
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{
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int i;
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int ret = fprintf(fp, " ");
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for (i = 0; i < left_margin; i++)
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ret += fprintf(fp, " ");
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return ret;
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}
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static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask,
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int left_margin)
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{
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int i;
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size_t ret = callchain__fprintf_left_margin(fp, left_margin);
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for (i = 0; i < depth; i++)
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if (depth_mask & (1 << i))
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ret += fprintf(fp, "| ");
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else
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ret += fprintf(fp, " ");
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ret += fprintf(fp, "\n");
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return ret;
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}
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static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_node *node,
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struct callchain_list *chain,
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int depth, int depth_mask, int period,
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u64 total_samples, int left_margin)
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{
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int i;
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size_t ret = 0;
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char bf[1024], *alloc_str = NULL;
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char buf[64];
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const char *str;
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ret += callchain__fprintf_left_margin(fp, left_margin);
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for (i = 0; i < depth; i++) {
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if (depth_mask & (1 << i))
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ret += fprintf(fp, "|");
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else
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ret += fprintf(fp, " ");
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if (!period && i == depth - 1) {
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ret += fprintf(fp, "--");
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ret += callchain_node__fprintf_value(node, fp, total_samples);
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ret += fprintf(fp, "--");
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} else
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ret += fprintf(fp, "%s", " ");
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}
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str = callchain_list__sym_name(chain, bf, sizeof(bf), false);
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if (symbol_conf.show_branchflag_count) {
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callchain_list_counts__printf_value(chain, NULL,
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buf, sizeof(buf));
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if (asprintf(&alloc_str, "%s%s", str, buf) < 0)
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str = "Not enough memory!";
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else
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str = alloc_str;
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}
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fputs(str, fp);
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fputc('\n', fp);
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free(alloc_str);
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return ret;
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}
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static struct symbol *rem_sq_bracket;
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static struct callchain_list rem_hits;
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static void init_rem_hits(void)
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{
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rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6);
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if (!rem_sq_bracket) {
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fprintf(stderr, "Not enough memory to display remaining hits\n");
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return;
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}
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strcpy(rem_sq_bracket->name, "[...]");
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rem_hits.ms.sym = rem_sq_bracket;
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}
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static size_t __callchain__fprintf_graph(FILE *fp, struct rb_root *root,
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u64 total_samples, int depth,
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int depth_mask, int left_margin)
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{
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struct rb_node *node, *next;
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struct callchain_node *child = NULL;
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struct callchain_list *chain;
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int new_depth_mask = depth_mask;
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u64 remaining;
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size_t ret = 0;
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int i;
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uint entries_printed = 0;
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int cumul_count = 0;
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remaining = total_samples;
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node = rb_first(root);
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while (node) {
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u64 new_total;
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u64 cumul;
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child = rb_entry(node, struct callchain_node, rb_node);
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cumul = callchain_cumul_hits(child);
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remaining -= cumul;
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cumul_count += callchain_cumul_counts(child);
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/*
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* The depth mask manages the output of pipes that show
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* the depth. We don't want to keep the pipes of the current
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* level for the last child of this depth.
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* Except if we have remaining filtered hits. They will
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* supersede the last child
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*/
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next = rb_next(node);
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if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining))
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new_depth_mask &= ~(1 << (depth - 1));
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/*
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* But we keep the older depth mask for the line separator
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* to keep the level link until we reach the last child
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*/
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ret += ipchain__fprintf_graph_line(fp, depth, depth_mask,
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left_margin);
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i = 0;
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list_for_each_entry(chain, &child->val, list) {
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ret += ipchain__fprintf_graph(fp, child, chain, depth,
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new_depth_mask, i++,
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total_samples,
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left_margin);
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}
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if (callchain_param.mode == CHAIN_GRAPH_REL)
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new_total = child->children_hit;
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else
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new_total = total_samples;
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ret += __callchain__fprintf_graph(fp, &child->rb_root, new_total,
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depth + 1,
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new_depth_mask | (1 << depth),
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left_margin);
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node = next;
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if (++entries_printed == callchain_param.print_limit)
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break;
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}
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if (callchain_param.mode == CHAIN_GRAPH_REL &&
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remaining && remaining != total_samples) {
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struct callchain_node rem_node = {
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.hit = remaining,
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};
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if (!rem_sq_bracket)
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return ret;
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if (callchain_param.value == CCVAL_COUNT && child && child->parent) {
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rem_node.count = child->parent->children_count - cumul_count;
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if (rem_node.count <= 0)
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return ret;
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}
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new_depth_mask &= ~(1 << (depth - 1));
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ret += ipchain__fprintf_graph(fp, &rem_node, &rem_hits, depth,
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new_depth_mask, 0, total_samples,
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left_margin);
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}
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return ret;
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}
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/*
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* If have one single callchain root, don't bother printing
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* its percentage (100 % in fractal mode and the same percentage
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* than the hist in graph mode). This also avoid one level of column.
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*
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* However when percent-limit applied, it's possible that single callchain
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* node have different (non-100% in fractal mode) percentage.
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*/
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static bool need_percent_display(struct rb_node *node, u64 parent_samples)
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{
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struct callchain_node *cnode;
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if (rb_next(node))
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return true;
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cnode = rb_entry(node, struct callchain_node, rb_node);
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return callchain_cumul_hits(cnode) != parent_samples;
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}
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static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
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u64 total_samples, u64 parent_samples,
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int left_margin)
|
{
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struct callchain_node *cnode;
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struct callchain_list *chain;
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u32 entries_printed = 0;
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bool printed = false;
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struct rb_node *node;
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int i = 0;
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int ret = 0;
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char bf[1024];
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node = rb_first(root);
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if (node && !need_percent_display(node, parent_samples)) {
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cnode = rb_entry(node, struct callchain_node, rb_node);
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list_for_each_entry(chain, &cnode->val, list) {
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/*
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* If we sort by symbol, the first entry is the same than
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* the symbol. No need to print it otherwise it appears as
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* displayed twice.
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*/
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if (!i++ && field_order == NULL &&
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sort_order && strstarts(sort_order, "sym"))
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continue;
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if (!printed) {
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ret += callchain__fprintf_left_margin(fp, left_margin);
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ret += fprintf(fp, "|\n");
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ret += callchain__fprintf_left_margin(fp, left_margin);
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ret += fprintf(fp, "---");
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left_margin += 3;
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printed = true;
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} else
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ret += callchain__fprintf_left_margin(fp, left_margin);
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ret += fprintf(fp, "%s",
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callchain_list__sym_name(chain, bf,
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sizeof(bf),
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false));
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if (symbol_conf.show_branchflag_count)
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ret += callchain_list_counts__printf_value(
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chain, fp, NULL, 0);
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ret += fprintf(fp, "\n");
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if (++entries_printed == callchain_param.print_limit)
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break;
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}
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root = &cnode->rb_root;
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}
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if (callchain_param.mode == CHAIN_GRAPH_REL)
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total_samples = parent_samples;
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ret += __callchain__fprintf_graph(fp, root, total_samples,
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1, 1, left_margin);
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if (ret) {
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/* do not add a blank line if it printed nothing */
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ret += fprintf(fp, "\n");
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}
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return ret;
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}
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static size_t __callchain__fprintf_flat(FILE *fp, struct callchain_node *node,
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u64 total_samples)
|
{
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struct callchain_list *chain;
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size_t ret = 0;
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char bf[1024];
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if (!node)
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return 0;
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ret += __callchain__fprintf_flat(fp, node->parent, total_samples);
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list_for_each_entry(chain, &node->val, list) {
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if (chain->ip >= PERF_CONTEXT_MAX)
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continue;
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ret += fprintf(fp, " %s\n", callchain_list__sym_name(chain,
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bf, sizeof(bf), false));
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}
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return ret;
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}
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static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *tree,
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u64 total_samples)
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{
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size_t ret = 0;
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u32 entries_printed = 0;
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struct callchain_node *chain;
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struct rb_node *rb_node = rb_first(tree);
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while (rb_node) {
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chain = rb_entry(rb_node, struct callchain_node, rb_node);
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ret += fprintf(fp, " ");
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ret += callchain_node__fprintf_value(chain, fp, total_samples);
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ret += fprintf(fp, "\n");
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ret += __callchain__fprintf_flat(fp, chain, total_samples);
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ret += fprintf(fp, "\n");
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if (++entries_printed == callchain_param.print_limit)
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break;
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rb_node = rb_next(rb_node);
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}
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return ret;
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}
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static size_t __callchain__fprintf_folded(FILE *fp, struct callchain_node *node)
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{
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const char *sep = symbol_conf.field_sep ?: ";";
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struct callchain_list *chain;
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size_t ret = 0;
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char bf[1024];
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bool first;
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if (!node)
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return 0;
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ret += __callchain__fprintf_folded(fp, node->parent);
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first = (ret == 0);
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list_for_each_entry(chain, &node->val, list) {
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if (chain->ip >= PERF_CONTEXT_MAX)
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continue;
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ret += fprintf(fp, "%s%s", first ? "" : sep,
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callchain_list__sym_name(chain,
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bf, sizeof(bf), false));
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first = false;
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}
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return ret;
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}
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static size_t callchain__fprintf_folded(FILE *fp, struct rb_root *tree,
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u64 total_samples)
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{
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size_t ret = 0;
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u32 entries_printed = 0;
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struct callchain_node *chain;
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struct rb_node *rb_node = rb_first(tree);
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while (rb_node) {
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chain = rb_entry(rb_node, struct callchain_node, rb_node);
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ret += callchain_node__fprintf_value(chain, fp, total_samples);
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ret += fprintf(fp, " ");
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ret += __callchain__fprintf_folded(fp, chain);
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ret += fprintf(fp, "\n");
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if (++entries_printed == callchain_param.print_limit)
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break;
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rb_node = rb_next(rb_node);
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}
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return ret;
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}
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static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
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u64 total_samples, int left_margin,
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FILE *fp)
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{
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u64 parent_samples = he->stat.period;
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if (symbol_conf.cumulate_callchain)
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parent_samples = he->stat_acc->period;
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switch (callchain_param.mode) {
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case CHAIN_GRAPH_REL:
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return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples,
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parent_samples, left_margin);
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break;
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case CHAIN_GRAPH_ABS:
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return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples,
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parent_samples, left_margin);
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break;
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case CHAIN_FLAT:
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return callchain__fprintf_flat(fp, &he->sorted_chain, total_samples);
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break;
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case CHAIN_FOLDED:
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return callchain__fprintf_folded(fp, &he->sorted_chain, total_samples);
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break;
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case CHAIN_NONE:
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break;
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default:
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pr_err("Bad callchain mode\n");
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}
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return 0;
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}
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int __hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp,
|
struct perf_hpp_list *hpp_list)
|
{
|
const char *sep = symbol_conf.field_sep;
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struct perf_hpp_fmt *fmt;
|
char *start = hpp->buf;
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int ret;
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bool first = true;
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if (symbol_conf.exclude_other && !he->parent)
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return 0;
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perf_hpp_list__for_each_format(hpp_list, fmt) {
|
if (perf_hpp__should_skip(fmt, he->hists))
|
continue;
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|
/*
|
* If there's no field_sep, we still need
|
* to display initial ' '.
|
*/
|
if (!sep || !first) {
|
ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: " ");
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advance_hpp(hpp, ret);
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} else
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first = false;
|
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if (perf_hpp__use_color() && fmt->color)
|
ret = fmt->color(fmt, hpp, he);
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else
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ret = fmt->entry(fmt, hpp, he);
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ret = hist_entry__snprintf_alignment(he, hpp, fmt, ret);
|
advance_hpp(hpp, ret);
|
}
|
|
return hpp->buf - start;
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}
|
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static int hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp)
|
{
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return __hist_entry__snprintf(he, hpp, he->hists->hpp_list);
|
}
|
|
static int hist_entry__hierarchy_fprintf(struct hist_entry *he,
|
struct perf_hpp *hpp,
|
struct hists *hists,
|
FILE *fp)
|
{
|
const char *sep = symbol_conf.field_sep;
|
struct perf_hpp_fmt *fmt;
|
struct perf_hpp_list_node *fmt_node;
|
char *buf = hpp->buf;
|
size_t size = hpp->size;
|
int ret, printed = 0;
|
bool first = true;
|
|
if (symbol_conf.exclude_other && !he->parent)
|
return 0;
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|
ret = scnprintf(hpp->buf, hpp->size, "%*s", he->depth * HIERARCHY_INDENT, "");
|
advance_hpp(hpp, ret);
|
|
/* the first hpp_list_node is for overhead columns */
|
fmt_node = list_first_entry(&hists->hpp_formats,
|
struct perf_hpp_list_node, list);
|
perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
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/*
|
* If there's no field_sep, we still need
|
* to display initial ' '.
|
*/
|
if (!sep || !first) {
|
ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: " ");
|
advance_hpp(hpp, ret);
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} else
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first = false;
|
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if (perf_hpp__use_color() && fmt->color)
|
ret = fmt->color(fmt, hpp, he);
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else
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ret = fmt->entry(fmt, hpp, he);
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ret = hist_entry__snprintf_alignment(he, hpp, fmt, ret);
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advance_hpp(hpp, ret);
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}
|
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if (!sep)
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ret = scnprintf(hpp->buf, hpp->size, "%*s",
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(hists->nr_hpp_node - 2) * HIERARCHY_INDENT, "");
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advance_hpp(hpp, ret);
|
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printed += fprintf(fp, "%s", buf);
|
|
perf_hpp_list__for_each_format(he->hpp_list, fmt) {
|
hpp->buf = buf;
|
hpp->size = size;
|
|
/*
|
* No need to call hist_entry__snprintf_alignment() since this
|
* fmt is always the last column in the hierarchy mode.
|
*/
|
if (perf_hpp__use_color() && fmt->color)
|
fmt->color(fmt, hpp, he);
|
else
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fmt->entry(fmt, hpp, he);
|
|
/*
|
* dynamic entries are right-aligned but we want left-aligned
|
* in the hierarchy mode
|
*/
|
printed += fprintf(fp, "%s%s", sep ?: " ", ltrim(buf));
|
}
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printed += putc('\n', fp);
|
|
if (he->leaf && hist_entry__has_callchains(he) && symbol_conf.use_callchain) {
|
u64 total = hists__total_period(hists);
|
|
printed += hist_entry_callchain__fprintf(he, total, 0, fp);
|
goto out;
|
}
|
|
out:
|
return printed;
|
}
|
|
static int hist_entry__fprintf(struct hist_entry *he, size_t size,
|
char *bf, size_t bfsz, FILE *fp,
|
bool ignore_callchains)
|
{
|
int ret;
|
int callchain_ret = 0;
|
struct perf_hpp hpp = {
|
.buf = bf,
|
.size = size,
|
};
|
struct hists *hists = he->hists;
|
u64 total_period = hists->stats.total_period;
|
|
if (size == 0 || size > bfsz)
|
size = hpp.size = bfsz;
|
|
if (symbol_conf.report_hierarchy)
|
return hist_entry__hierarchy_fprintf(he, &hpp, hists, fp);
|
|
hist_entry__snprintf(he, &hpp);
|
|
ret = fprintf(fp, "%s\n", bf);
|
|
if (hist_entry__has_callchains(he) && !ignore_callchains)
|
callchain_ret = hist_entry_callchain__fprintf(he, total_period,
|
0, fp);
|
|
ret += callchain_ret;
|
|
return ret;
|
}
|
|
static int print_hierarchy_indent(const char *sep, int indent,
|
const char *line, FILE *fp)
|
{
|
if (sep != NULL || indent < 2)
|
return 0;
|
|
return fprintf(fp, "%-.*s", (indent - 2) * HIERARCHY_INDENT, line);
|
}
|
|
static int hists__fprintf_hierarchy_headers(struct hists *hists,
|
struct perf_hpp *hpp, FILE *fp)
|
{
|
bool first_node, first_col;
|
int indent;
|
int depth;
|
unsigned width = 0;
|
unsigned header_width = 0;
|
struct perf_hpp_fmt *fmt;
|
struct perf_hpp_list_node *fmt_node;
|
const char *sep = symbol_conf.field_sep;
|
|
indent = hists->nr_hpp_node;
|
|
/* preserve max indent depth for column headers */
|
print_hierarchy_indent(sep, indent, spaces, fp);
|
|
/* the first hpp_list_node is for overhead columns */
|
fmt_node = list_first_entry(&hists->hpp_formats,
|
struct perf_hpp_list_node, list);
|
|
perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
|
fmt->header(fmt, hpp, hists, 0, NULL);
|
fprintf(fp, "%s%s", hpp->buf, sep ?: " ");
|
}
|
|
/* combine sort headers with ' / ' */
|
first_node = true;
|
list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
|
if (!first_node)
|
header_width += fprintf(fp, " / ");
|
first_node = false;
|
|
first_col = true;
|
perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
|
if (perf_hpp__should_skip(fmt, hists))
|
continue;
|
|
if (!first_col)
|
header_width += fprintf(fp, "+");
|
first_col = false;
|
|
fmt->header(fmt, hpp, hists, 0, NULL);
|
|
header_width += fprintf(fp, "%s", trim(hpp->buf));
|
}
|
}
|
|
fprintf(fp, "\n# ");
|
|
/* preserve max indent depth for initial dots */
|
print_hierarchy_indent(sep, indent, dots, fp);
|
|
/* the first hpp_list_node is for overhead columns */
|
fmt_node = list_first_entry(&hists->hpp_formats,
|
struct perf_hpp_list_node, list);
|
|
first_col = true;
|
perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
|
if (!first_col)
|
fprintf(fp, "%s", sep ?: "..");
|
first_col = false;
|
|
width = fmt->width(fmt, hpp, hists);
|
fprintf(fp, "%.*s", width, dots);
|
}
|
|
depth = 0;
|
list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
|
first_col = true;
|
width = depth * HIERARCHY_INDENT;
|
|
perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
|
if (perf_hpp__should_skip(fmt, hists))
|
continue;
|
|
if (!first_col)
|
width++; /* for '+' sign between column header */
|
first_col = false;
|
|
width += fmt->width(fmt, hpp, hists);
|
}
|
|
if (width > header_width)
|
header_width = width;
|
|
depth++;
|
}
|
|
fprintf(fp, "%s%-.*s", sep ?: " ", header_width, dots);
|
|
fprintf(fp, "\n#\n");
|
|
return 2;
|
}
|
|
static void fprintf_line(struct hists *hists, struct perf_hpp *hpp,
|
int line, FILE *fp)
|
{
|
struct perf_hpp_fmt *fmt;
|
const char *sep = symbol_conf.field_sep;
|
bool first = true;
|
int span = 0;
|
|
hists__for_each_format(hists, fmt) {
|
if (perf_hpp__should_skip(fmt, hists))
|
continue;
|
|
if (!first && !span)
|
fprintf(fp, "%s", sep ?: " ");
|
else
|
first = false;
|
|
fmt->header(fmt, hpp, hists, line, &span);
|
|
if (!span)
|
fprintf(fp, "%s", hpp->buf);
|
}
|
}
|
|
static int
|
hists__fprintf_standard_headers(struct hists *hists,
|
struct perf_hpp *hpp,
|
FILE *fp)
|
{
|
struct perf_hpp_list *hpp_list = hists->hpp_list;
|
struct perf_hpp_fmt *fmt;
|
unsigned int width;
|
const char *sep = symbol_conf.field_sep;
|
bool first = true;
|
int line;
|
|
for (line = 0; line < hpp_list->nr_header_lines; line++) {
|
/* first # is displayed one level up */
|
if (line)
|
fprintf(fp, "# ");
|
fprintf_line(hists, hpp, line, fp);
|
fprintf(fp, "\n");
|
}
|
|
if (sep)
|
return hpp_list->nr_header_lines;
|
|
first = true;
|
|
fprintf(fp, "# ");
|
|
hists__for_each_format(hists, fmt) {
|
unsigned int i;
|
|
if (perf_hpp__should_skip(fmt, hists))
|
continue;
|
|
if (!first)
|
fprintf(fp, "%s", sep ?: " ");
|
else
|
first = false;
|
|
width = fmt->width(fmt, hpp, hists);
|
for (i = 0; i < width; i++)
|
fprintf(fp, ".");
|
}
|
|
fprintf(fp, "\n");
|
fprintf(fp, "#\n");
|
return hpp_list->nr_header_lines + 2;
|
}
|
|
int hists__fprintf_headers(struct hists *hists, FILE *fp)
|
{
|
char bf[1024];
|
struct perf_hpp dummy_hpp = {
|
.buf = bf,
|
.size = sizeof(bf),
|
};
|
|
fprintf(fp, "# ");
|
|
if (symbol_conf.report_hierarchy)
|
return hists__fprintf_hierarchy_headers(hists, &dummy_hpp, fp);
|
else
|
return hists__fprintf_standard_headers(hists, &dummy_hpp, fp);
|
|
}
|
|
size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
|
int max_cols, float min_pcnt, FILE *fp,
|
bool ignore_callchains)
|
{
|
struct rb_node *nd;
|
size_t ret = 0;
|
const char *sep = symbol_conf.field_sep;
|
int nr_rows = 0;
|
size_t linesz;
|
char *line = NULL;
|
unsigned indent;
|
|
init_rem_hits();
|
|
hists__reset_column_width(hists);
|
|
if (symbol_conf.col_width_list_str)
|
perf_hpp__set_user_width(symbol_conf.col_width_list_str);
|
|
if (show_header)
|
nr_rows += hists__fprintf_headers(hists, fp);
|
|
if (max_rows && nr_rows >= max_rows)
|
goto out;
|
|
linesz = hists__sort_list_width(hists) + 3 + 1;
|
linesz += perf_hpp__color_overhead();
|
line = malloc(linesz);
|
if (line == NULL) {
|
ret = -1;
|
goto out;
|
}
|
|
indent = hists__overhead_width(hists) + 4;
|
|
for (nd = rb_first(&hists->entries); nd; nd = __rb_hierarchy_next(nd, HMD_FORCE_CHILD)) {
|
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
|
float percent;
|
|
if (h->filtered)
|
continue;
|
|
percent = hist_entry__get_percent_limit(h);
|
if (percent < min_pcnt)
|
continue;
|
|
ret += hist_entry__fprintf(h, max_cols, line, linesz, fp, ignore_callchains);
|
|
if (max_rows && ++nr_rows >= max_rows)
|
break;
|
|
/*
|
* If all children are filtered out or percent-limited,
|
* display "no entry >= x.xx%" message.
|
*/
|
if (!h->leaf && !hist_entry__has_hierarchy_children(h, min_pcnt)) {
|
int depth = hists->nr_hpp_node + h->depth + 1;
|
|
print_hierarchy_indent(sep, depth, spaces, fp);
|
fprintf(fp, "%*sno entry >= %.2f%%\n", indent, "", min_pcnt);
|
|
if (max_rows && ++nr_rows >= max_rows)
|
break;
|
}
|
|
if (h->ms.map == NULL && verbose > 1) {
|
map_groups__fprintf(h->thread->mg, fp);
|
fprintf(fp, "%.10s end\n", graph_dotted_line);
|
}
|
}
|
|
free(line);
|
out:
|
zfree(&rem_sq_bracket);
|
|
return ret;
|
}
|
|
size_t events_stats__fprintf(struct events_stats *stats, FILE *fp)
|
{
|
int i;
|
size_t ret = 0;
|
|
for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) {
|
const char *name;
|
|
name = perf_event__name(i);
|
if (!strcmp(name, "UNKNOWN"))
|
continue;
|
|
ret += fprintf(fp, "%16s events: %10d\n", name, stats->nr_events[i]);
|
}
|
|
return ret;
|
}
|
