v4.19.13 snapshot.
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
new file mode 100644
index 0000000..74c4ae1
--- /dev/null
+++ b/tools/perf/ui/stdio/hist.c
@@ -0,0 +1,850 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stdio.h>
+#include <linux/string.h>
+
+#include "../../util/util.h"
+#include "../../util/hist.h"
+#include "../../util/sort.h"
+#include "../../util/evsel.h"
+#include "../../util/srcline.h"
+#include "../../util/string2.h"
+#include "../../util/thread.h"
+#include "../../util/sane_ctype.h"
+
+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_node *node,
+ struct callchain_list *chain,
+ int depth, int depth_mask, int period,
+ u64 total_samples, int left_margin)
+{
+ int i;
+ size_t ret = 0;
+ char bf[1024], *alloc_str = NULL;
+ char buf[64];
+ const char *str;
+
+ 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) {
+ ret += fprintf(fp, "--");
+ ret += callchain_node__fprintf_value(node, fp, total_samples);
+ ret += fprintf(fp, "--");
+ } else
+ ret += fprintf(fp, "%s", " ");
+ }
+
+ str = callchain_list__sym_name(chain, bf, sizeof(bf), false);
+
+ if (symbol_conf.show_branchflag_count) {
+ callchain_list_counts__printf_value(chain, NULL,
+ buf, sizeof(buf));
+
+ if (asprintf(&alloc_str, "%s%s", str, buf) < 0)
+ str = "Not enough memory!";
+ else
+ str = alloc_str;
+ }
+
+ fputs(str, fp);
+ fputc('\n', fp);
+ free(alloc_str);
+
+ 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 rb_root *root,
+ u64 total_samples, int depth,
+ int depth_mask, int left_margin)
+{
+ struct rb_node *node, *next;
+ struct callchain_node *child = NULL;
+ struct callchain_list *chain;
+ int new_depth_mask = depth_mask;
+ u64 remaining;
+ size_t ret = 0;
+ int i;
+ uint entries_printed = 0;
+ int cumul_count = 0;
+
+ remaining = total_samples;
+
+ node = rb_first(root);
+ while (node) {
+ u64 new_total;
+ u64 cumul;
+
+ child = rb_entry(node, struct callchain_node, rb_node);
+ cumul = callchain_cumul_hits(child);
+ remaining -= cumul;
+ cumul_count += callchain_cumul_counts(child);
+
+ /*
+ * 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, child, chain, depth,
+ new_depth_mask, i++,
+ total_samples,
+ left_margin);
+ }
+
+ if (callchain_param.mode == CHAIN_GRAPH_REL)
+ new_total = child->children_hit;
+ else
+ new_total = total_samples;
+
+ ret += __callchain__fprintf_graph(fp, &child->rb_root, 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 != total_samples) {
+ struct callchain_node rem_node = {
+ .hit = remaining,
+ };
+
+ if (!rem_sq_bracket)
+ return ret;
+
+ if (callchain_param.value == CCVAL_COUNT && child && child->parent) {
+ rem_node.count = child->parent->children_count - cumul_count;
+ if (rem_node.count <= 0)
+ return ret;
+ }
+
+ new_depth_mask &= ~(1 << (depth - 1));
+ ret += ipchain__fprintf_graph(fp, &rem_node, &rem_hits, depth,
+ new_depth_mask, 0, total_samples,
+ left_margin);
+ }
+
+ return ret;
+}
+
+/*
+ * If have one single callchain root, don't bother printing
+ * its percentage (100 % in fractal mode and the same percentage
+ * than the hist in graph mode). This also avoid one level of column.
+ *
+ * However when percent-limit applied, it's possible that single callchain
+ * node have different (non-100% in fractal mode) percentage.
+ */
+static bool need_percent_display(struct rb_node *node, u64 parent_samples)
+{
+ struct callchain_node *cnode;
+
+ if (rb_next(node))
+ return true;
+
+ cnode = rb_entry(node, struct callchain_node, rb_node);
+ return callchain_cumul_hits(cnode) != parent_samples;
+}
+
+static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
+ u64 total_samples, u64 parent_samples,
+ int left_margin)
+{
+ struct callchain_node *cnode;
+ struct callchain_list *chain;
+ u32 entries_printed = 0;
+ bool printed = false;
+ struct rb_node *node;
+ int i = 0;
+ int ret = 0;
+ char bf[1024];
+
+ node = rb_first(root);
+ if (node && !need_percent_display(node, parent_samples)) {
+ cnode = rb_entry(node, struct callchain_node, rb_node);
+ list_for_each_entry(chain, &cnode->val, list) {
+ /*
+ * If we sort by symbol, the first entry is the same than
+ * the symbol. No need to print it otherwise it appears as
+ * displayed twice.
+ */
+ if (!i++ && field_order == NULL &&
+ sort_order && strstarts(sort_order, "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);
+
+ ret += fprintf(fp, "%s",
+ callchain_list__sym_name(chain, bf,
+ sizeof(bf),
+ false));
+
+ if (symbol_conf.show_branchflag_count)
+ ret += callchain_list_counts__printf_value(
+ chain, fp, NULL, 0);
+ ret += fprintf(fp, "\n");
+
+ if (++entries_printed == callchain_param.print_limit)
+ break;
+ }
+ root = &cnode->rb_root;
+ }
+
+ if (callchain_param.mode == CHAIN_GRAPH_REL)
+ total_samples = parent_samples;
+
+ ret += __callchain__fprintf_graph(fp, root, total_samples,
+ 1, 1, left_margin);
+ if (ret) {
+ /* do not add a blank line if it printed nothing */
+ ret += fprintf(fp, "\n");
+ }
+
+ return ret;
+}
+
+static size_t __callchain__fprintf_flat(FILE *fp, struct callchain_node *node,
+ u64 total_samples)
+{
+ struct callchain_list *chain;
+ size_t ret = 0;
+ char bf[1024];
+
+ if (!node)
+ return 0;
+
+ ret += __callchain__fprintf_flat(fp, node->parent, total_samples);
+
+
+ list_for_each_entry(chain, &node->val, list) {
+ if (chain->ip >= PERF_CONTEXT_MAX)
+ continue;
+ ret += fprintf(fp, " %s\n", callchain_list__sym_name(chain,
+ bf, sizeof(bf), false));
+ }
+
+ return ret;
+}
+
+static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *tree,
+ u64 total_samples)
+{
+ size_t ret = 0;
+ u32 entries_printed = 0;
+ struct callchain_node *chain;
+ struct rb_node *rb_node = rb_first(tree);
+
+ while (rb_node) {
+ chain = rb_entry(rb_node, struct callchain_node, rb_node);
+
+ ret += fprintf(fp, " ");
+ ret += callchain_node__fprintf_value(chain, fp, total_samples);
+ ret += fprintf(fp, "\n");
+ ret += __callchain__fprintf_flat(fp, chain, total_samples);
+ ret += fprintf(fp, "\n");
+ if (++entries_printed == callchain_param.print_limit)
+ break;
+
+ rb_node = rb_next(rb_node);
+ }
+
+ return ret;
+}
+
+static size_t __callchain__fprintf_folded(FILE *fp, struct callchain_node *node)
+{
+ const char *sep = symbol_conf.field_sep ?: ";";
+ struct callchain_list *chain;
+ size_t ret = 0;
+ char bf[1024];
+ bool first;
+
+ if (!node)
+ return 0;
+
+ ret += __callchain__fprintf_folded(fp, node->parent);
+
+ first = (ret == 0);
+ list_for_each_entry(chain, &node->val, list) {
+ if (chain->ip >= PERF_CONTEXT_MAX)
+ continue;
+ ret += fprintf(fp, "%s%s", first ? "" : sep,
+ callchain_list__sym_name(chain,
+ bf, sizeof(bf), false));
+ first = false;
+ }
+
+ return ret;
+}
+
+static size_t callchain__fprintf_folded(FILE *fp, struct rb_root *tree,
+ u64 total_samples)
+{
+ size_t ret = 0;
+ u32 entries_printed = 0;
+ struct callchain_node *chain;
+ struct rb_node *rb_node = rb_first(tree);
+
+ while (rb_node) {
+
+ chain = rb_entry(rb_node, struct callchain_node, rb_node);
+
+ ret += callchain_node__fprintf_value(chain, fp, total_samples);
+ ret += fprintf(fp, " ");
+ ret += __callchain__fprintf_folded(fp, chain);
+ ret += fprintf(fp, "\n");
+ if (++entries_printed == callchain_param.print_limit)
+ break;
+
+ rb_node = rb_next(rb_node);
+ }
+
+ return ret;
+}
+
+static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
+ u64 total_samples, int left_margin,
+ FILE *fp)
+{
+ u64 parent_samples = he->stat.period;
+
+ if (symbol_conf.cumulate_callchain)
+ parent_samples = he->stat_acc->period;
+
+ switch (callchain_param.mode) {
+ case CHAIN_GRAPH_REL:
+ return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples,
+ parent_samples, left_margin);
+ break;
+ case CHAIN_GRAPH_ABS:
+ return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples,
+ parent_samples, left_margin);
+ break;
+ case CHAIN_FLAT:
+ return callchain__fprintf_flat(fp, &he->sorted_chain, total_samples);
+ break;
+ case CHAIN_FOLDED:
+ return callchain__fprintf_folded(fp, &he->sorted_chain, total_samples);
+ break;
+ case CHAIN_NONE:
+ break;
+ default:
+ pr_err("Bad callchain mode\n");
+ }
+
+ return 0;
+}
+
+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;
+ struct perf_hpp_fmt *fmt;
+ char *start = hpp->buf;
+ int ret;
+ bool first = true;
+
+ if (symbol_conf.exclude_other && !he->parent)
+ return 0;
+
+ perf_hpp_list__for_each_format(hpp_list, fmt) {
+ if (perf_hpp__should_skip(fmt, he->hists))
+ continue;
+
+ /*
+ * 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);
+ } else
+ first = false;
+
+ if (perf_hpp__use_color() && fmt->color)
+ ret = fmt->color(fmt, hpp, he);
+ else
+ ret = fmt->entry(fmt, hpp, he);
+
+ ret = hist_entry__snprintf_alignment(he, hpp, fmt, ret);
+ advance_hpp(hpp, ret);
+ }
+
+ return hpp->buf - start;
+}
+
+static int hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp)
+{
+ 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;
+
+ 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) {
+ /*
+ * 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);
+ } else
+ first = false;
+
+ if (perf_hpp__use_color() && fmt->color)
+ ret = fmt->color(fmt, hpp, he);
+ else
+ ret = fmt->entry(fmt, hpp, he);
+
+ ret = hist_entry__snprintf_alignment(he, hpp, fmt, ret);
+ advance_hpp(hpp, ret);
+ }
+
+ if (!sep)
+ ret = scnprintf(hpp->buf, hpp->size, "%*s",
+ (hists->nr_hpp_node - 2) * HIERARCHY_INDENT, "");
+ advance_hpp(hpp, ret);
+
+ 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
+ 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));
+ }
+ 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;
+}