path: root/tools/perf/builtin-report.c

/*
 * builtin-report.c
 *
 * Builtin report command: Analyze the perf.data input file,
 * look up and read DSOs and symbol information and display
 * a histogram of results, along various sorting keys.
 */
#include "builtin.h"

#include "util/util.h"
#include "util/cache.h"

#include "util/annotate.h"
#include "util/color.h"
#include <linux/list.h>
#include <linux/rbtree.h>
#include "util/symbol.h"
#include "util/callchain.h"
#include "util/strlist.h"
#include "util/values.h"

#include "perf.h"
#include "util/debug.h"
#include "util/evlist.h"
#include "util/evsel.h"
#include "util/header.h"
#include "util/session.h"
#include "util/tool.h"

#include "util/parse-options.h"
#include "util/parse-events.h"

#include "util/thread.h"
#include "util/sort.h"
#include "util/hist.h"
#include "util/data.h"
#include "arch/common.h"

#include <dlfcn.h>
#include <linux/bitmap.h>

struct perf_report {
	struct perf_tool	tool;
	struct perf_session	*session;
	bool			force, use_tui, use_gtk, use_stdio;
	bool			hide_unresolved;
	bool			dont_use_callchains;
	bool			show_full_info;
	bool			show_threads;
	bool			inverted_callchain;
	bool			mem_mode;
	int			max_stack;
	struct perf_read_values	show_threads_values;
	const char		*pretty_printing_style;
	const char		*cpu_list;
	const char		*symbol_filter_str;
	float			min_percent;
	DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
};

static int perf_report_config(const char *var, const char *value, void *cb)
{
	if (!strcmp(var, "report.group")) {
		symbol_conf.event_group = perf_config_bool(var, value);
		return 0;
	}
	if (!strcmp(var, "report.percent-limit")) {
		struct perf_report *rep = cb;
		rep->min_percent = strtof(value, NULL);
		return 0;
	}

	return perf_default_config(var, value, cb);
}

static int perf_report__add_mem_hist_entry(struct perf_tool *tool,
					   struct addr_location *al,
					   struct perf_sample *sample,
					   struct perf_evsel *evsel,
					   struct machine *machine,
					   union perf_event *event)
{
	struct perf_report *rep = container_of(tool, struct perf_report, tool);
	struct symbol *parent = NULL;
	u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
	int err = 0;
	struct hist_entry *he;
	struct mem_info *mi, *mx;
	uint64_t cost;

	if ((sort__has_parent || symbol_conf.use_callchain) &&
	    sample->callchain) {
		err = machine__resolve_callchain(machine, evsel, al->thread,
						 sample, &parent, al,
						 rep->max_stack);
		if (err)
			return err;
	}

	mi = machine__resolve_mem(machine, al->thread, sample, cpumode);
	if (!mi)
		return -ENOMEM;

	if (rep->hide_unresolved && !al->sym)
		return 0;

	cost = sample->weight;
	if (!cost)
		cost = 1;

	/*
	 * must pass period=weight in order to get the correct
	 * sorting from hists__collapse_resort() which is solely
	 * based on periods. We want sorting be done on nr_events * weight
	 * and this is indirectly achieved by passing period=weight here
	 * and the he_stat__add_period() function.
	 */
	he = __hists__add_entry(&evsel->hists, al, parent, NULL, mi,
				cost, cost, 0);
	if (!he)
		return -ENOMEM;

	/*
	 * In the TUI browser, we are doing integrated annotation,
	 * so we don't allocate the extra space needed because the stdio
	 * code will not use it.
	 */
	if (sort__has_sym && he->ms.sym && use_browser > 0) {
		struct annotation *notes = symbol__annotation(he->ms.sym);

		assert(evsel != NULL);

		if (notes->src == NULL && symbol__alloc_hist(he->ms.sym) < 0)
			goto out;

		err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
		if (err)
			goto out;
	}

	if (sort__has_sym && he->mem_info->daddr.sym && use_browser > 0) {
		struct annotation