// SPDX-License-Identifier: GPL-2.0
/*
* 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/config.h"
#include "util/annotate.h"
#include "util/color.h"
#include "util/dso.h"
#include <linux/list.h>
#include <linux/rbtree.h>
#include <linux/err.h>
#include <linux/zalloc.h>
#include "util/map.h"
#include "util/symbol.h"
#include "util/map_symbol.h"
#include "util/mem-events.h"
#include "util/branch.h"
#include "util/callchain.h"
#include "util/values.h"
#include "perf.h"
#include "util/debug.h"
#include "util/evlist.h"
#include "util/evsel.h"
#include "util/evswitch.h"
#include "util/header.h"
#include "util/mem-info.h"
#include "util/session.h"
#include "util/srcline.h"
#include "util/tool.h"
#include <subcmd/parse-options.h>
#include <subcmd/exec-cmd.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 "util/time-utils.h"
#include "util/auxtrace.h"
#include "util/units.h"
#include "util/util.h" // perf_tip()
#include "ui/ui.h"
#include "ui/progress.h"
#include "util/block-info.h"
#include <dlfcn.h>
#include <errno.h>
#include <inttypes.h>
#include <regex.h>
#include <linux/ctype.h>
#include <signal.h>
#include <linux/bitmap.h>
#include <linux/list_sort.h>
#include <linux/string.h>
#include <linux/stringify.h>
#include <linux/time64.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <linux/mman.h>
#ifdef HAVE_LIBTRACEEVENT
#include <traceevent/event-parse.h>
#endif
struct report {
struct perf_tool tool;
struct perf_session *session;
struct evswitch evswitch;
#ifdef HAVE_SLANG_SUPPORT
bool use_tui;
#endif
#ifdef HAVE_GTK2_SUPPORT
bool use_gtk;
#endif
bool use_stdio;
bool show_full_info;
bool show_threads;
bool inverted_callchain;
bool mem_mode;
bool stats_mode;
bool tasks_mode;
bool mmaps_mode;
bool header;
bool header_only;
bool nonany_branch_mode;
bool group_set;
bool stitch_lbr;
bool disable_order;
bool skip_empty;
bool data_type;
int max_stack;
struct perf_read_values show_threads_values;
const char *pretty_printing_style;
const char *cpu_list;
const char *symbol_filter_str;
const char *time_str;
struct perf_time_interval *ptime_range;
int range_size;
int range_num;
float min_percent;
u64 nr_entries;
u64 queue_size;
u64 total_cycles;
int socket_filter;
DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
struct branch_type_stat brtype_stat;
bool symbol_ipc;
bool total_cycles_mode;
struct block_report *block_reports;
int nr_block_reports;
};
static int report__config(const char *var, const char *value, void *cb)
{
struct report *rep = cb;
if (!strcmp(var, "report.group")) {
symbol_conf.event_group = perf_config_bool(var, value);
return 0;
}
if (!strcmp(var, "report.percent-limit")) {
double pcnt = strtof(value, NULL);
rep->min_percent = pcnt;
callchain_param.min_percent = pcnt;
return 0;
}
if (!strcmp(var, "report.children")) {
symbol_conf.cumulate_callchain = perf_config_bool(var, value);
return 0;
}
if (!strcmp(var, "report.queue-size"))
return perf_config_u64(&rep->queue_size, var, value);
if (!strcmp(var, "report.sort_order")) {
default_sort_order = strdup(value);
if (!default_sort_order) {
pr_err("Not enough memory for report.sort_order\n");
return -1;
}
return 0;
}
if (!strcmp(var, "report.skip-empty")) {
rep->skip_empty = perf_config_bool(var, value);
return 0;
}
pr_debug("%s variable unknown, ignoring...", var);
return 0;
}
static int hist_iter__report_callback(struct hist_entry_iter *iter,
struct addr_location *al, bool single,
void *arg)
{
int err = 0;
struct report *rep = arg;
struct hist_entry *he = iter->he;
struct evsel *evsel = iter->evsel;
struct perf_sample *sample = iter->sample;
struct mem_info *mi;
struct branch_info *bi;
if (!ui__has_annotation() && !rep->symbol_ipc)
return 0;
if (sort__mode == SORT_MODE__BRANCH) {
bi = he->branch_info;
err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
if (err)
goto out;
err = addr_map_symbol__inc_samples(&bi->to, sample, evsel);
} else if (rep->mem_mode) {
mi = he->mem_info;
err = addr_map_symbol__inc_samples(mem_info__daddr(mi), sample, evsel);
if (err)
goto out;
err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
} else if (symbol_conf.cumulate_callchain) {
if (single)
err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
} else {
err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
}
out:
return err;
}
static int hist_iter__branch_callback(struct hist_entry_iter *iter,
struct addr_location *al __maybe_unused,
bool single __maybe_unused,
void *arg)
{
struct hist_entry *he = iter->he;
struct report *rep = arg;
struct branch_info *bi = he->branch_info;
struct perf_sample *sample = iter->sample;
struct evsel *evsel = iter->evsel;
int err;
branch_type_count(&rep->brtype_stat, &bi->flags,
bi->from.addr, bi->to.addr);
if (!ui__has_annotation() && !rep->symbol_ipc)
return 0;
err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
if (err)
goto out;
err = addr_map_symbol__inc_samples(&bi->to, sample, evsel);
out:
return err;
}
static void setup_forced_leader(struct report *report,
struct evlist *evlist)
{
if (report->group_set)
evlist__force_leader(evlist);
}
static int process_feature_event(struct perf_session *session,
union perf_event *event)
{
struct report *rep = container_of(session->tool, struct report, tool);
if (event->feat.feat_id < HEADER_LAST_FEATURE)
return perf_event__process_feature(session, event);
if (event->feat.feat_id != HEADER_LAST_FEATURE) {
pr_err("failed: wrong feature ID: %" PRI_lu64 "\n",
event->feat.feat_id);
return -1;
} else if (rep->header_only) {
session_done = 1;
}
/*
* (feat_id = HEADER_LAST_FEATURE) is the end marker which
* means all features are received, now we can force the
* group if needed.
*/
setup_forced_leader(rep, session->evlist);
return 0;
}
static int process_sample_event(const struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample,
struct evsel *evsel,
struct machine *machine)
{
struct report *rep = container_of(tool, struct report, tool);
struct addr_location al;
struct hist_entry_iter iter = {
.evsel = evsel,
.sample = sample,
.hide_unresolved = symbol_conf.hide_unresolved,
.add_entry_cb = hist_iter__report_callback,
};
int ret = 0;
if (perf_time__ranges_skip_sample(rep->ptime_range, rep->range_num,
sample->time)) {
return 0;
}
if (evswitch__discard(&rep->evswitch, evsel))
return 0;
addr_location__init(&al);
if (machine__resolve(machine, &al, sample) < 0) {
pr_debug("problem processing %d event, skipping it.\n",
event->header.type);
ret = -1;
goto out_put;
}
if (rep->stitch_lbr)
thread__set_lbr_stitch_enable(al.thread, true);
if (symbol_conf.hide_unresolved && al.sym == NULL)
goto out_put;
if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
goto out_put;
if (sort__mode == SORT_MODE__BRANCH) {
/*
* A non-synthesized event might not have a branch stack if
* branch stacks have been synthesized (using itrace options).
*/
if (!sample->branch_stack)
goto out_put;
iter.add_entry_cb = hist_iter__branch_callback;
iter.ops = &hist_iter_branch;
} else if (rep->mem_mode) {
iter.ops = &hist_iter_mem;
} else if (symbol_conf.cumulate_callchain) {
iter.ops = &hist_iter_cumulative;
} else {
iter.ops = &hist_iter_normal;
}
if (al.map != NULL)
dso__set_hit(map__dso(al.map));
if (ui__has_annotation() || rep->symbol_ipc || rep->total_cycles_mode) {
hist__account_cycles(sample->branch_stack, &al, sample,
rep->nonany_branch_mode,
&rep->total_cycles, evsel);
}
ret = hist_entry_iter__add(&iter, &al, rep->max_stack, rep);
if (ret < 0)
pr_debug("problem adding hist entry, skipping event\n");
out_put:
addr_location__exit(&al);
return ret;
}
static int process_read_event(const struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample __maybe_unused,
struct evsel *evsel,
struct machine *machine __maybe_unused)
{
struct report *rep = container_of(tool, struct report, tool);
if (rep->show_threads) {
const char *name = evsel__name(evsel);
int err = perf_read_values_add_value(&rep->show_threads_values,
event->read.pid, event->read.tid,
evsel->core.idx,
name,
event->read.value);
if (err)
return err;
}
return 0;
}
/* For pipe mode, sample_type is not currently set */
static int report__setup_sample_type(struct report *rep)
{
struct perf_session *session = rep->session;
u64 sample_type = evlist__combined_sample_type(session->evlist);
bool is_pipe = perf_data__is_pipe(session->data);
struct evsel *evsel;
if (session->itrace_synth_opts->callchain ||
session->itrace_synth_opts->add_callchain ||
(!is_pipe &&
perf_header__has_feat(&session->header, HEADER_AUXTRACE) &&
!session->itrace_synth_opts->set))
sample_type |= PERF_SAMPLE_CALLCHAIN;
if (session->itrace_synth_opts->last_branch ||
session->itrace_synth_opts->add_last_branch)
sample_type |= PERF_SAMPLE_BRANCH_STACK;
if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
if (perf_hpp_list.parent) {
ui__error("Selected --sort parent, but no "
"callchain data. Did you call "
"'perf record' without -g?\n");
return -EINVAL;
}
if (symbol_conf.use_callchain &&
!symbol_conf.show_branchflag_count) {
ui__error("Selected -g or --branch-history.\n"
"But no callchain or branch data.\n"
"Did you call 'perf record' without -g or -b?\n");
return -1;
}
} else if (!callchain_param.enabled &&
callchain_param.mode != CHAIN_NONE &&
!symbol_conf.use_callchain) {
symbol_conf.use_callchain = true;
if (callchain_register_param(&callchain_param) < 0) {
ui__error("Can't register callchain params.\n");
return -EINVAL;
}
}
if (symbol_conf.cumulate_callchain) {
/* Silently ignore if callchain is missing */
if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
symbol_conf.cumulate_callchain = false;
perf_hpp__cancel_cumulate();
}
}
if (sort__mode == SORT_MODE__BRANCH) {
if (!is_pipe &&
!(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
ui__error("Selected -b but no branch data. "
"Did you call perf record without -b?\n");
return -1;
}
}
if (sort__mode == SORT_MODE__MEMORY) {
/*
* FIXUP: prior to kernel 5.18, Arm SPE missed to set
* PERF_SAMPLE_DATA_SRC bit in sample type. For backward
* compatibility, set the bit if it's an old perf data file.
*/
evlist__for_each_entry(session->evlist, evsel) {
if (strstr(evsel__name(evsel), "arm_spe") &&
!(sample_type & PERF_SAMPLE_DATA_SRC)) {
evsel->core.attr.sample_type |= PERF_SAMPLE_DATA_SRC;
sample_type |= PERF_SAMPLE_DATA_SRC;
}
}
if (!is_pipe && !(sample_type & PERF_SAMPLE_DATA_SRC)) {
ui__error("Selected --mem-mode but no mem data. "
"Did you call perf record without -d?\n");
return -1;
}
}
callchain_param_setup(sample_type, perf_env__arch(&rep->session->header.env));
if (rep->stitch_lbr && (callchain_param.record_mode != CALLCHAIN_LBR)) {
ui__warning("Can't find LBR callchain. Switch off --stitch-lbr.\n"
"Please apply --call-graph lbr when recording.\n");
rep->stitch_lbr = false;
}
/* ??? handle more cases than just ANY? */
if (!(evlist__combined_branch_type(session->evlist) & PERF_SAMPLE_BRANCH_ANY))
rep->nonany_branch_mode = true;
#if !defined(HAVE_LIBUNWIND_SUPPORT) && !defined(HAVE_DWARF_SUPPORT)
if (dwarf_callchain_users) {
ui__warning("Please install libunwind or libdw "
"development packages during the perf build.\n");
}
#endif
return 0;
}
static void sig_handler(int sig __maybe_unused)
{
session_done = 1;
}
static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep,
const char *evname, FILE *fp)
{
size_t ret;
char unit;
unsigned long nr_samples = hists->stats.nr_samples;
u64 nr_events = hists->stats.total_period;
struct evsel *evsel = hists_to_evsel(hists);
char buf[512];
size_t size = sizeof(buf);
int socked_id = hists->socket_filter;
if (quiet)
return 0;
if (symbol_conf.filter_relative) {
nr_samples = hists->stats.nr_non_filtered_samples;
nr_events = hists->stats.total_non_filtered_period;
}
if (evsel__is_group_event(evsel)) {
struct evsel *pos;
evsel__group_desc(evsel, buf, size);
evname = buf;
for_each_group_member(pos, evsel) {
const struct hists *pos_hists = evsel__hists(pos);
if (symbol_conf.filter_relative) {
nr_samples += pos_hists->stats.nr_non_filtered_samples;
nr_events += pos_hists->stats.total_non_filtered_period;
} else {
nr_samples += pos_hists->stats.nr_samples;
nr_events += pos_hists->stats.total_period;
}
}
}
nr_samples = convert_unit(nr_samples, &unit);
ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);
if (evname != NULL) {
ret += fprintf(fp, " of event%s '%s'",
evsel->core.nr_members > 1 ? "s" : "", evname);
}
if (rep->time_str)
ret += fprintf(fp, " (time slices: %s)", rep->time_str);
if (symbol_conf.show_ref_callgraph && evname && strstr(evname, "call-graph=no")) {
ret += fprintf(fp, ", show reference callgraph");
}
if (rep->mem_mode) {
ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events);
ret += fprintf(fp, "\n# Sort order : %s", sort_order ? : default_mem_sort_order);
} else
ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
if (socked_id > -1)
ret += fprintf(fp, "\n# Processor Socket: %d", socked_id);
return ret + fprintf(fp, "\n#\n");
}
static int evlist__tui_block_hists_browse(struct evlist *evlist, struct report *rep)
{
struct evsel *pos;
int i = 0, ret;
evlist__for_each_entry(evlist, pos) {
ret = report__browse_block_hists(&rep->block_reports[i++].hist,
rep->min_percent, pos,
&rep->session->header.env);
if (ret != 0)
return ret;
}
return 0;
}
static int evlist__tty_browse_hists(struct evlist *evlist, struct report *rep, const char *help)
{
struct evsel *pos;
int i = 0;
if (!quiet) {
fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n",
evlist->stats.total_lost_samples);
}
evlist__for_each_entry(evlist, pos) {
struct hists *hists = evsel__hists(pos);
const char *evname = evsel__name(pos);
i++;
if (symbol_conf.event_group && !evsel__is_group_leader(pos))
continue;
if (rep->skip_empty && !hists->stats.nr_samples)
continue;
hists__fprintf_nr_sample_events(hists, rep, evname, stdout);
if (rep->total_cycles_mode) {
char *buf;
if (!annotation_br_cntr_abbr_list(&buf, pos, true)) {
fprintf(stdout, "%s", buf);
fprintf(stdout, "#\n");
free(buf);
}
report__browse_block_hists(&rep->block_reports[i - 1].hist,
rep->min_percent, pos, NULL);
continue;
}
hists__fprintf(hists, !quiet, 0, 0, rep->min_percent, stdout,
!(symbol_conf.use_callchain ||
symbol_conf.show_branchflag_count));
fprintf(stdout, "\n\n");
}
if (!quiet)
fprintf(stdout, "#\n# (%s)\n#\n", help);
if (rep->show_threads) {
bool style = !strcmp(rep->pretty_printing_style, "raw");
perf_read_values_display(stdout, &rep->show_threads_values,
style);
perf_read_values_destroy(&rep->show_threads_values);
}
if (sort__mode == SORT_MODE__BRANCH)
branch_type_stat_display(stdout, &rep->brtype_stat);
return 0;
}
static void report__warn_kptr_restrict(const struct report *rep)
{
struct map *kernel_map = machine__kernel_map(&rep->session->machines.host);
struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL;
if (evlist__exclude_kernel(rep->session->evlist))
return;
if (kernel_map == NULL ||
(dso__hit(map__dso(kernel_map)) &&
(kernel_kmap->ref_reloc_sym == NULL ||
kernel_kmap->ref_reloc_sym->addr == 0))) {
const char *desc =
"As no suitable kallsyms nor vmlinux was found, kernel samples\n"
"can't be resolved.";
if (kernel_map && map__has_symbols(kernel_map)) {
desc = "If some relocation was applied (e.g. "
"kexec) symbols may be misresolved.";
}
ui__warning(
"Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
"Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
"Samples in kernel modules can't be resolved as well.\n\n",
desc);
}
}
static int report__gtk_browse_hists(struct report *rep, const char *help)
{
int (*hist_browser)(struct evlist *evlist, const char *help,
struct hist_browser_timer *timer, float min_pcnt);
hist_browser = dlsym(perf_gtk_handle, "evlist__gtk_browse_hists");
if (hist_browser == NULL) {
ui__error("GTK browser not found!\n");
return -1;
}
return hist_browser(rep->session->evlist, help, NULL, rep->min_percent);
}
static int report__browse_hists(struct report *rep)
{
int ret;
struct perf_session *session = rep->session;
struct evlist *evlist = session->evlist;
char *help = NULL, *path = NULL;
path = system_path(TIPDIR);
if (perf_tip(&help, path) || help == NULL) {
/* fallback for people who don't install perf ;-) */
free(path);
path = system_path(DOCDIR);
if (perf_tip(&help, path) || help == NULL)
help = strdup("Cannot load tips.txt file, please install perf!");
}
free(path);
switch (use_browser) {
case 1:
if (rep->total_cycles_mode) {
ret = evlist__tui_block_hists_browse(evlist, rep);
break;
}
ret = evlist__tui_browse_hists(evlist, help, NULL, rep->min_percent,
&session->header.env, true);
/*
* Usually "ret" is the last pressed key, and we only
* care if the key notifies us to switch data file.
*/
if (ret != K_SWITCH_INPUT_DATA && ret != K_RELOAD)
ret = 0;
break;
case 2:
ret = report__gtk_browse_hists(rep, help);
break;
default:
ret = evlist__tty_browse_hists(evlist, rep, help);
break;
}
free(help);
return ret;
}
static int report__collapse_hists(struct report *rep)
{
struct perf_session *session = rep->session;
struct evlist *evlist = session->evlist;
struct ui_progress prog;
struct evsel *pos;
int ret = 0;
/*
* The pipe data needs to setup hierarchy hpp formats now, because it
* cannot know about evsels in the data before reading the data. The
* normal file data saves the event (attribute) info in the header
* section, but pipe does not have the luxury.
*/
if (perf_data__is_pipe(session->data)) {
if (perf_hpp__setup_hists_formats(&perf_hpp_list, evlist) < 0) {
ui__error("Failed to setup hierarchy output formats\n");
return -1;
}
}
ui_progress__init(&prog, rep->nr_entries, "Merging related events...");
evlist__for_each_entry(rep->session->evlist, pos) {
struct hists *hists = evsel__hists(pos);
if (pos->core.idx == 0)
hists->symbol_filter_str = rep->symbol_filter_str;
hists->socket_filter = rep->socket_filter;
ret = hists__collapse_resort(hists, &prog);
if (ret < 0)
break;
/* Non-group events are considered as leader */
if (symbol_conf.event_group && !evsel__is_group_leader(pos)) {
struct hists *leader_hists = evsel__hists(evsel__leader(pos));
hists__match(leader_hists, hists);
hists__link(leader_hists, hists);
}
}
ui_progress__finish();
return ret;
}
static int hists__resort_cb(struct hist_entry *he, void *arg)
{
struct report *rep = arg;
struct symbol *sym = he->ms.sym;
if (rep->symbol_ipc && sym && !sym->annotate2) {
struct evsel *evsel = hists_to_evsel(he->hists);
symbol__annotate2(&he->ms, evsel, NULL);
}
return 0;
}
static void report__output_resort(struct report *rep)
{
struct ui_progress prog;
struct evsel *pos;
ui_progress__init(&prog, rep->nr_entries, "Sorting events for output...");
evlist__for_each_entry(rep->session->evlist, pos) {
evsel__output_resort_cb(pos, &prog, hists__resort_cb, rep);
}
ui_progress__finish();
}
static int count_sample_event(const struct perf_tool *tool __maybe_unused,
union perf_event *event __maybe_unused,
struct perf_sample *sample __maybe_unused,
struct evsel *evsel,
struct machine *machine __maybe_unused)
{
struct hists *hists = evsel__hists(evsel);
hists__inc_nr_events(hists);
return 0;
}
static int count_lost_samples_event(const struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample,
struct machine *machine __maybe_unused)
{
struct report *rep = container_of(tool, struct report, tool);
struct evsel *evsel;
evsel = evlist__id2evsel(rep->session->evlist, sample->id);
if (evsel) {
struct hists *hists = evsel__hists(evsel);
u32 count = event->lost_samples.lost;
if (event->header.misc & PERF_RECORD_MISC_LOST_SAMPLES_BPF)
hists__inc_nr_dropped_samples(hists, count);
else
hists__inc_nr_lost_samples(hists, count);
}
return 0;
}
static int process_attr(const struct perf_tool *tool __maybe_unused,
union perf_event *event,
struct evlist **pevlist);
static void stats_setup(struct report *rep)
{
perf_tool__init(&rep->tool, /*ordered_events=*/false);
rep->tool.attr = process_attr;
rep->tool.sample = count_sample_event;
rep->tool.lost_samples = count_lost_samples_event;
rep->tool.event_update = perf_event__process_event_update;
rep->tool.no_warn = true;
}
static int stats_print(struct report *rep)
{
struct perf_session *session = rep->session;
perf_session__fprintf_nr_events(session, stdout);
evlist__fprintf_nr_events(session->evlist, stdout);
return 0;
}
static void tasks_setup(struct report *rep)
{
perf_tool__init(&rep->tool, /*ordered_events=*/true);
if (rep->mmaps_mode) {
rep->tool.mmap = perf_event__process_mmap;
rep->tool.mmap2 = perf_event__process_mmap2;
}
rep->tool.attr = process_attr;
rep->tool.comm = perf_event__process_comm;
rep->tool.exit = perf_event__process_exit;
rep->tool.fork = perf_event__process_fork;
rep->tool.no_warn = true;
}
struct maps__fprintf_task_args {
int indent;
FILE *fp;
size_t printed;
};
static int maps__fprintf_task_cb(struct map *map, void *data)
{
struct maps__fprintf_task_args *args = data;
const struct dso *dso = map__dso(map);
u32 prot = map__prot(map);
int ret;
ret = fprintf(args->fp,
"%*s %" PRIx64 "-%" PRIx64 " %c%c%c%c %08" PRIx64 " %" PRIu64 " %s\n",
args->indent, "", map__start(map), map__end(map),
prot & PROT_READ ? 'r' : '-',
prot & PROT_WRITE ? 'w' : '-',
prot & PROT_EXEC ? 'x' : '-',
map__flags(map) ? 's' : 'p',
map__pgoff(map),
dso__id_const(dso)->ino, dso__name(dso));
if (ret < 0)
return ret;
args->printed += ret;
return 0;
}
static size_t maps__fprintf_task(struct maps *maps, int indent, FILE *fp)
{
struct maps__fprintf_task_args args = {
.indent = indent,
.fp = fp,
.printed = 0,
};
maps__for_each_map(maps, maps__fprintf_task_cb, &args);
return args.printed;
}
static int thread_level(struct machine *machine, const struct thread *thread)
{
struct thread *parent_thread;
int res;
if (thread__tid(thread) <= 0)
return 0;
if (thread__ppid(thread) <= 0)
return 1;
parent_thread = machine__find_thread(machine, -1, thread__ppid(thread));
if (!parent_thread) {
pr_err("Missing parent thread of %d\n", thread__tid(thread));
return 0;
}
res = 1 + thread_level(machine, parent_thread);
thread__put(parent_thread);
return res;
}
static void task__print_level(struct machine *machine, struct thread *thread, FILE *fp)
{
int level = thread_level(machine, thread);
int comm_indent = fprintf(fp, " %8d %8d %8d |%*s",
thread__pid(thread), thread__tid(thread),
thread__ppid(thread), level, "");
fprintf(fp, "%s\n", thread__comm_str(thread));
maps__fprintf_task(thread__maps(thread), comm_indent, fp);
}
/*
* Sort two thread list nodes such that they form a tree. The first node is the
* root of the tree, its children are ordered numerically after it. If a child
* has children itself then they appear immediately after their parent. For
* example, the 4 threads in the order they'd appear in the list:
* - init with a TID 1 and a parent of 0
* - systemd with a TID 3000 and a parent of init/1
* - systemd child thread with TID 4000, the parent is 3000
* - NetworkManager is a child of init with a TID of 3500.
*/
static int task_list_cmp(void *priv, const struct list_head *la, const struct list_head *lb)
{
struct machine *machine = priv;
struct thread_list *task_a = list_entry(la, struct thread_list, list);
struct thread_list *task_b = list_entry(lb, struct thread_list, list);
struct thread *a = task_a->thread;
struct thread *b = task_b->thread;
int level_a, level_b, res;
/* Same thread? */
if (thread__tid(a) == thread__tid(b))
return 0;
/* Compare a and b to root. */
if (thread__tid(a) == 0)
return -1;
if (thread__tid(b) == 0)
return 1;
/* If parents match sort by tid. */
if (thread__ppid(a) == thread__ppid(b))
return thread__tid(a) < thread__tid(b) ? -1 : 1;
/*
* Find a and b such that if they are a child of each other a and b's
* tid's match, otherwise a and b have a common parent and distinct
* tid's to sort by. First make the depths of the threads match.
*/
level_a = thread_level(machine, a);
level_b = thread_level(machine, b);
a = thread__get(a);
b = thread__get(b);
for (int i = level_a; i > level_b; i--) {
struct thread *parent = machine__find_thread(machine, -1, thread__ppid(a));
thread__put(a);
if (!parent) {
pr_err("Missing parent thread of %d\n", thread__tid(a));
thread__put(b);
return -1;
}
a = parent;
}
for (int i = level_b; i > level_a; i--) {
struct thread *parent = machine__find_thread(machine, -1, thread__ppid(b));
thread__put(b);
if (!parent) {
pr_err("Missing parent thread of %d\n", thread__tid(b));
thread__put(a);
return 1;
}
b = parent;
}
/* Search up to a common parent. */
while (thread__ppid(a) != thread__ppid(b)) {
struct thread *parent;
parent = machine__find_thread(machine, -1, thread__ppid(a));
thread__put(a);
if (!parent)
pr_err("Missing parent thread of %d\n", thread__tid(a));
a = parent;
parent = machine__find_thread(machine, -1, thread__ppid(b));
thread__put(b);
if (!parent)
pr_err("Missing parent thread of %d\n", thread__tid(b));
b = parent;
if (!a || !b) {
/* Handle missing parent (unexpected) with some sanity. */
thread__put(a);
thread__put(b);
return !a && !b ? 0 : (!a ? -1 : 1);
}
}
if (thread__tid(a) == thread__tid(b)) {
/* a is a child of b or vice-versa, deeper levels appear later. */
res = level_a < level_b ? -1 : (level_a > level_b ? 1 : 0);
} else {
/* Sort by tid now the parent is the same. */
res = thread__tid(a) < thread__tid(b) ? -1 : 1;
}
thread__put(a);
thread__put(b);
return res;
}
static int tasks_print(struct report *rep, FILE *fp)
{
struct machine *machine = &rep->session->machines.host;
LIST_HEAD(tasks);
int ret;
ret = machine__thread_list(machine, &tasks);
if (!ret) {
struct thread_list *task;
list_sort(machine, &tasks, task_list_cmp);
fprintf(fp, "# %8s %8s %8s %s\n", "pid", "tid", "ppid", "comm");
list_for_each_entry(task, &tasks, list)
task__print_level(machine, task->thread, fp);
}
thread_list__delete(&tasks);
return ret;
}
static int __cmd_report(struct report *rep)
{
int ret;
struct perf_session *session = rep->session;
struct evsel *pos;
struct perf_data *data = session->data;
signal(SIGINT, sig_handler);
if (rep->cpu_list) {
ret = perf_session__cpu_bitmap(session, rep->cpu_list,
rep->cpu_bitmap);
if (ret) {
ui__error("failed to set cpu bitmap\n");
return ret;
}
session->itrace_synth_opts->cpu_bitmap = rep->cpu_bitmap;
}
if (rep->show_threads) {
ret = perf_read_values_init(&rep->show_threads_values);
if (ret)
return ret;
}
ret = report__setup_sample_type(rep);
if (ret) {
/* report__setup_sample_type() already showed error message */
return ret;
}
if (rep->stats_mode)
stats_setup(rep);
if (rep->tasks_mode)
tasks_setup(rep);
ret = perf_session__process_events(session);
if (ret) {
ui__error("failed to process sample\n");
return ret;
}
evlist__check_mem_load_aux(session->evlist);
if (rep->stats_mode)
return stats_print(rep);
if (rep->tasks_mode)
return tasks_print(rep, stdout);
report__warn_kptr_restrict(rep);
evlist__for_each_entry(session->evlist, pos)
rep->nr_entries += evsel__hists(pos)->nr_entries;
if (use_browser == 0) {
if (verbose > 3)
perf_session__fprintf(session, stdout);
if (verbose > 2)
perf_session__fprintf_dsos(session, stdout);
if (dump_trace) {
stats_print(rep);
return 0;
}
}
ret = report__collapse_hists(rep);
if (ret) {
ui__error("failed to process hist entry\n");
return ret;
}
if (session_done())
return 0;
/*
* recalculate number of entries after collapsing since it
* might be changed during the collapse phase.
*/
rep->nr_entries = 0;
evlist__for_each_entry(session->evlist, pos)
rep->nr_entries += evsel__hists(pos)->nr_entries;
if (rep->nr_entries == 0) {
ui__error("The %s data has no samples!\n", data->path);
return 0;
}
report__output_resort(rep);
if (rep->total_cycles_mode) {
int nr_hpps = 4;
int block_hpps[PERF_HPP_REPORT__BLOCK_MAX_INDEX] = {
PERF_HPP_REPORT__BLOCK_TOTAL_CYCLES_PCT,
PERF_HPP_REPORT__BLOCK_LBR_CYCLES,
PERF_HPP_REPORT__BLOCK_CYCLES_PCT,
PERF_HPP_REPORT__BLOCK_AVG_CYCLES,
};
if (session->evlist->nr_br_cntr > 0)
block_hpps[nr_hpps++] = PERF_HPP_REPORT__BLOCK_BRANCH_COUNTER;
block_hpps[nr_hpps++] = PERF_HPP_REPORT__BLOCK_RANGE;
block_hpps[nr_hpps++] = PERF_HPP_REPORT__BLOCK_DSO;
rep->block_reports = block_info__create_report(session->evlist,
rep->total_cycles,
block_hpps, nr_hpps,
&rep->nr_block_reports);
if (!rep->block_reports)
return -1;
}
return report__browse_hists(rep);
}
static int
report_parse_callchain_opt(const struct option *opt, const char *arg, int unset)
{
struct callchain_param *callchain = opt->value;
callchain->enabled = !unset;
/*
* --no-call-graph
*/
if (unset) {
symbol_conf.use_callchain = false;
callchain->mode = CHAIN_NONE;
return 0;
}
return parse_callchain_report_opt(arg);
}
static int
parse_time_quantum(const struct option *opt, const char *arg,
int unset __maybe_unused)
{
unsigned long *time_q = opt->value;
char *end;
*time_q = strtoul(arg, &end, 0);
if (end == arg)
goto parse_err;
if (*time_q == 0) {
pr_err("time quantum cannot be 0");
return -1;
}
end = skip_spaces(end);
if (*end == 0)
return 0;
if (!strcmp(end, "s")) {
*time_q *= NSEC_PER_SEC;
return 0;
}
if (!strcmp(end, "ms")) {
*time_q *= NSEC_PER_MSEC;
return 0;
}
if (!strcmp(end, "us")) {
*time_q *= NSEC_PER_USEC;
return 0;
}
if (!strcmp(end, "ns"))
return 0;
parse_err:
pr_err("Cannot parse time quantum `%s'\n", arg);
return -1;
}
int
report_parse_ignore_callees_opt(const struct option *opt __maybe_unused,
const char *arg, int unset __maybe_unused)
{
if (arg) {
int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED);
if (err) {
char buf[BUFSIZ];
regerror(err, &ignore_callees_regex, buf, sizeof(buf));
pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf);
return -1;
}
have_ignore_callees = 1;
}
return 0;
}
static int
parse_branch_mode(const struct option *opt,
const char *str __maybe_unused, int unset)
{
int *branch_mode = opt->value;
*branch_mode = !unset;
return 0;
}
static int
parse_percent_limit(const struct option *opt, const char *str,
int unset __maybe_unused)
{
struct report *rep = opt->value;
double pcnt = strtof(str, NULL);
rep->min_percent = pcnt;
callchain_param.min_percent = pcnt;
return 0;
}
static int process_attr(const struct perf_tool *tool __maybe_unused,
union perf_event *event,
struct evlist **pevlist)
{
u64 sample_type;
int err;
err = perf_event__process_attr(tool, event, pevlist);
if (err)
return err;
/*
* Check if we need to enable callchains based
* on events sample_type.
*/
sample_type = evlist__combined_sample_type(*pevlist);
callchain_param_setup(sample_type, perf_env__arch((*pevlist)->env));
return 0;
}
int cmd_report(int argc, const char **argv)
{
struct perf_session *session;
struct itrace_synth_opts itrace_synth_opts = { .set = 0, };
struct stat st;
bool has_br_stack = false;
int branch_mode = -1;
int last_key = 0;
bool branch_call_mode = false;
#define CALLCHAIN_DEFAULT_OPT "graph,0.5,caller,function,percent"
static const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
CALLCHAIN_REPORT_HELP
"\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
const char * const report_usage[] = {
"perf report [<options>]",
NULL
};
struct report report = {
.max_stack = PERF_MAX_STACK_DEPTH,
.pretty_printing_style = "normal",
.socket_filter = -1,
.skip_empty = true,
};
char *sort_order_help = sort_help("sort by key(s):", SORT_MODE__NORMAL);
char *field_order_help = sort_help("output field(s):", SORT_MODE__NORMAL);
const char *disassembler_style = NULL, *objdump_path = NULL, *addr2line_path = NULL;
const struct option options[] = {
OPT_STRING('i', "input", &input_name, "file",
"input file name"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show symbol address, etc)"),
OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any warnings or messages"),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
OPT_BOOLEAN(0, "stats", &report.stats_mode, "Display event stats"),
OPT_BOOLEAN(0, "tasks", &report.tasks_mode, "Display recorded tasks"),
OPT_BOOLEAN(0, "mmaps", &report.mmaps_mode, "Display recorded tasks memory maps"),
OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
"file", "vmlinux pathname"),
OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux,
"don't load vmlinux even if found"),
OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
"file", "kallsyms pathname"),
OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
"load module symbols - WARNING: use only with -k and LIVE kernel"),
OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
"Show a column with the number of samples"),
OPT_BOOLEAN('T', "threads", &report.show_threads,
"Show per-thread event counters"),
OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
"pretty printing style key: normal raw"),
#ifdef HAVE_SLANG_SUPPORT
OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
#endif
#ifdef HAVE_GTK2_SUPPORT
OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
#endif
OPT_BOOLEAN(0, "stdio", &report.use_stdio,
"Use the stdio interface"),
OPT_BOOLEAN(0, "header", &report.header, "Show data header."),
OPT_BOOLEAN(0, "header-only", &report.header_only,
"Show only data header."),
OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
sort_order_help),
OPT_STRING('F', "fields", &field_order, "key[,keys...]",
field_order_help),
OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization,
"Show sample percentage for different cpu modes"),
OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
"Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN),
OPT_STRING('p', "parent", &parent_pattern, "regex",
"regex filter to identify parent, see: '--sort parent'"),
OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
"Only display entries with parent-match"),
OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
"print_type,threshold[,print_limit],order,sort_key[,branch],value",
report_callchain_help, &report_parse_callchain_opt,
callchain_default_opt),
OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
"Accumulate callchains of children and show total overhead as well. "
"Enabled by default, use --no-children to disable."),
OPT_INTEGER(0, "max-stack", &report.max_stack,
"Set the maximum stack depth when parsing the callchain, "
"anything beyond the specified depth will be ignored. "
"Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
"alias for inverted call graph"),
OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
"ignore callees of these functions in call graphs",
report_parse_ignore_callees_opt),
OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
"only consider symbols in these dsos"),
OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
"only consider symbols in these comms"),
OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
"only consider symbols in these pids"),
OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
"only consider symbols in these tids"),
OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
"only consider these symbols"),
OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
"only show symbols that (partially) match with this filter"),
OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
"width[,width...]",
"don't try to adjust column width, use these fixed values"),
OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
"separator for columns, no spaces will be added between "
"columns '.' is reserved."),
OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved,
"Only display entries resolved to a symbol"),
OPT_CALLBACK(0, "symfs", NULL, "directory",
"Look for files with symbols relative to this directory",
symbol__config_symfs),
OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
"list of cpus to profile"),
OPT_BOOLEAN('I', "show-info", &report.show_full_info,
"Display extended information about perf.data file"),
OPT_BOOLEAN(0, "source", &annotate_opts.annotate_src,
"Interleave source code with assembly code (default)"),
OPT_BOOLEAN(0, "asm-raw", &annotate_opts.show_asm_raw,
"Display raw encoding of assembly instructions (default)"),
OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
"Specify disassembler style (e.g. -M intel for intel syntax)"),
OPT_STRING(0, "prefix", &annotate_opts.prefix, "prefix",
"Add prefix to source file path names in programs (with --prefix-strip)"),
OPT_STRING(0, "prefix-strip", &annotate_opts.prefix_strip, "N",
"Strip first N entries of source file path name in programs (with --prefix)"),
OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
"Show a column with the sum of periods"),
OPT_BOOLEAN_SET(0, "group", &symbol_conf.event_group, &report.group_set,
"Show event group information together"),
OPT_INTEGER(0, "group-sort-idx", &symbol_conf.group_sort_idx,
"Sort the output by the event at the index n in group. "
"If n is invalid, sort by the first event. "
"WARNING: should be used on grouped events."),
OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
"use branch records for per branch histogram filling",
parse_branch_mode),
OPT_BOOLEAN(0, "branch-history", &branch_call_mode,
"add last branch records to call history"),
OPT_STRING(0, "objdump", &objdump_path, "path",
"objdump binary to use for disassembly and annotations"),
OPT_STRING(0, "addr2line", &addr2line_path, "path",
"addr2line binary to use for line numbers"),
OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
"Disable symbol demangling"),
OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
"Enable kernel symbol demangling"),
OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
OPT_INTEGER(0, "samples", &symbol_conf.res_sample,
"Number of samples to save per histogram entry for individual browsing"),
OPT_CALLBACK(0, "percent-limit", &report, "percent",
"Don't show entries under that percent", parse_percent_limit),
OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
"how to display percentage of filtered entries", parse_filter_percentage),
OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
"Instruction Tracing options\n" ITRACE_HELP,
itrace_parse_synth_opts),
OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
"Show full source file name path for source lines"),
OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph,
"Show callgraph from reference event"),
OPT_BOOLEAN(0, "stitch-lbr", &report.stitch_lbr,
"Enable LBR callgraph stitching approach"),
OPT_INTEGER(0, "socket-filter", &report.socket_filter,
"only show processor socket that match with this filter"),
OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
"Show raw trace event output (do not use print fmt or plugins)"),
OPT_BOOLEAN('H', "hierarchy", &symbol_conf.report_hierarchy,
"Show entries in a hierarchy"),
OPT_CALLBACK_DEFAULT(0, "stdio-color", NULL, "mode",
"'always' (default), 'never' or 'auto' only applicable to --stdio mode",
stdio__config_color, "always"),
OPT_STRING(0, "time", &report.time_str, "str",
"Time span of interest (start,stop)"),
OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
"Show inline function"),
OPT_CALLBACK(0, "percent-type", &annotate_opts, "local-period",
"Set percent type local/global-period/hits",
annotate_parse_percent_type),
OPT_BOOLEAN(0, "ns", &symbol_conf.nanosecs, "Show times in nanosecs"),
OPT_CALLBACK(0, "time-quantum", &symbol_conf.time_quantum, "time (ms|us|ns|s)",
"Set time quantum for time sort key (default 100ms)",
parse_time_quantum),
OPTS_EVSWITCH(&report.evswitch),
OPT_BOOLEAN(0, "total-cycles", &report.total_cycles_mode,
"Sort all blocks by 'Sampled Cycles%'"),
OPT_BOOLEAN(0, "disable-order", &report.disable_order,
"Disable raw trace ordering"),
OPT_BOOLEAN(0, "skip-empty", &report.skip_empty,
"Do not display empty (or dummy) events in the output"),
OPT_END()
};
struct perf_data data = {
.mode = PERF_DATA_MODE_READ,
};
int ret = hists__init();
char sort_tmp[128];
bool ordered_events = true;
if (ret < 0)
goto exit;
/*
* tasks_mode require access to exited threads to list those that are in
* the data file. Off-cpu events are synthesized after other events and
* reference exited threads.
*/
symbol_conf.keep_exited_threads = true;
annotation_options__init();
ret = perf_config(report__config, &report);
if (ret)
goto exit;
argc = parse_options(argc, argv, options, report_usage, 0);
if (argc) {
/*
* Special case: if there's an argument left then assume that
* it's a symbol filter:
*/
if (argc > 1)
usage_with_options(report_usage, options);
report.symbol_filter_str = argv[0];
}
if (disassembler_style) {
annotate_opts.disassembler_style = strdup(disassembler_style);
if (!annotate_opts.disassembler_style)
return -ENOMEM;
}
if (objdump_path) {
annotate_opts.objdump_path = strdup(objdump_path);
if (!annotate_opts.objdump_path)
return -ENOMEM;
}
if (addr2line_path) {
symbol_conf.addr2line_path = strdup(addr2line_path);
if (!symbol_conf.addr2line_path)
return -ENOMEM;
}
if (annotate_check_args() < 0) {
ret = -EINVAL;
goto exit;
}
if (report.mmaps_mode)
report.tasks_mode = true;
if (dump_trace && report.disable_order)
ordered_events = false;
if (quiet)
perf_quiet_option();
ret = symbol__validate_sym_arguments();
if (ret)
goto exit;
if (report.inverted_callchain)
callchain_param.order = ORDER_CALLER;
if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
callchain_param.order = ORDER_CALLER;
if ((itrace_synth_opts.callchain || itrace_synth_opts.add_callchain) &&
(int)itrace_synth_opts.callchain_sz > report.max_stack)
report.max_stack = itrace_synth_opts.callchain_sz;
if (!input_name || !strlen(input_name)) {
if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
input_name = "-";
else
input_name = "perf.data";
}
data.path = input_name;
data.force = symbol_conf.force;
symbol_conf.skip_empty = report.skip_empty;
repeat:
perf_tool__init(&report.tool, ordered_events);
report.tool.sample = process_sample_event;
report.tool.mmap = perf_event__process_mmap;
report.tool.mmap2 = perf_event__process_mmap2;
report.tool.comm = perf_event__process_comm;
report.tool.namespaces = perf_event__process_namespaces;
report.tool.cgroup = perf_event__process_cgroup;
report.tool.exit = perf_event__process_exit;
report.tool.fork = perf_event__process_fork;
report.tool.lost = perf_event__process_lost;
report.tool.read = process_read_event;
report.tool.attr = process_attr;
#ifdef HAVE_LIBTRACEEVENT
report.tool.tracing_data = perf_event__process_tracing_data;
#endif
report.tool.build_id = perf_event__process_build_id;
report.tool.id_index = perf_event__process_id_index;
report.tool.auxtrace_info = perf_event__process_auxtrace_info;
report.tool.auxtrace = perf_event__process_auxtrace;
report.tool.event_update = perf_event__process_event_update;
report.tool.feature = process_feature_event;
report.tool.ordering_requires_timestamps = true;
session = perf_session__new(&data, &report.tool);
if (IS_ERR(session)) {
ret = PTR_ERR(session);
goto exit;
}
ret = evswitch__init(&report.evswitch, session->evlist, stderr);
if (ret)
goto exit;
if (zstd_init(&(session->zstd_data), 0) < 0)
pr_warning("Decompression initialization failed. Reported data may be incomplete.\n");
if (report.queue_size) {
ordered_events__set_alloc_size(&session->ordered_events,
report.queue_size);
}
session->itrace_synth_opts = &itrace_synth_opts;
report.session = session;
has_br_stack = perf_header__has_feat(&session->header,
HEADER_BRANCH_STACK);
if (evlist__combined_sample_type(session->evlist) & PERF_SAMPLE_STACK_USER)
has_br_stack = false;
setup_forced_leader(&report, session->evlist);
if (symbol_conf.group_sort_idx && evlist__nr_groups(session->evlist) == 0) {
parse_options_usage(NULL, options, "group-sort-idx", 0);
ret = -EINVAL;
goto error;
}
if (itrace_synth_opts.last_branch || itrace_synth_opts.add_last_branch)
has_br_stack = true;
if (has_br_stack && branch_call_mode)
symbol_conf.show_branchflag_count = true;
memset(&report.brtype_stat, 0, sizeof(struct branch_type_stat));
/*
* Branch mode is a tristate:
* -1 means default, so decide based on the file having branch data.
* 0/1 means the user chose a mode.
*/
if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) &&
!branch_call_mode) {
sort__mode = SORT_MODE__BRANCH;
symbol_conf.cumulate_callchain = false;
}
if (branch_call_mode) {
callchain_param.key = CCKEY_ADDRESS;
callchain_param.branch_callstack = true;
symbol_conf.use_callchain = true;
callchain_register_param(&callchain_param);
if (sort_order == NULL)
sort_order = "srcline,symbol,dso";
}
if (report.mem_mode) {
if (sort__mode == SORT_MODE__BRANCH) {
pr_err("branch and mem mode incompatible\n");
goto error;
}
sort__mode = SORT_MODE__MEMORY;
symbol_conf.cumulate_callchain = false;
}
if (symbol_conf.report_hierarchy) {
/* disable incompatible options */
symbol_conf.cumulate_callchain = false;
if (field_order) {
pr_err("Error: --hierarchy and --fields options cannot be used together\n");
parse_options_usage(report_usage, options, "F", 1);
parse_options_usage(NULL, options, "hierarchy", 0);
goto error;
}
perf_hpp_list.need_collapse = true;
}
if (report.use_stdio)
use_browser = 0;
#ifdef HAVE_SLANG_SUPPORT
else if (report.use_tui)
use_browser = 1;
#endif
#ifdef HAVE_GTK2_SUPPORT
else if (report.use_gtk)
use_browser = 2;
#endif
/* Force tty output for header output and per-thread stat. */
if (report.header || report.header_only || report.show_threads)
use_browser = 0;
if (report.header || report.header_only)
report.tool.show_feat_hdr = SHOW_FEAT_HEADER;
if (report.show_full_info)
report.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO;
if (report.stats_mode || report.tasks_mode)
use_browser = 0;
if (report.stats_mode && report.tasks_mode) {
pr_err("Error: --tasks and --mmaps can't be used together with --stats\n");
goto error;
}
if (report.total_cycles_mode) {
if (sort__mode != SORT_MODE__BRANCH)
report.total_cycles_mode = false;
else
sort_order = NULL;
}
if (sort_order && strstr(sort_order, "type")) {
report.data_type = true;
annotate_opts.annotate_src = false;
#ifndef HAVE_DWARF_GETLOCATIONS_SUPPORT
pr_err("Error: Data type profiling is disabled due to missing DWARF support\n");
goto error;
#endif
}
if (strcmp(input_name, "-") != 0)
setup_browser(true);
else
use_browser = 0;
if (report.data_type && use_browser == 1) {
symbol_conf.annotate_data_member = true;
symbol_conf.annotate_data_sample = true;
}
if (sort_order && strstr(sort_order, "ipc")) {
parse_options_usage(report_usage, options, "s", 1);
goto error;
}
if (sort_order && strstr(sort_order, "symbol")) {
if (sort__mode == SORT_MODE__BRANCH) {
snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s",
sort_order, "ipc_lbr");
report.symbol_ipc = true;
} else {
snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s",
sort_order, "ipc_null");
}
sort_order = sort_tmp;
}
if ((last_key != K_SWITCH_INPUT_DATA && last_key != K_RELOAD) &&
(setup_sorting(session->evlist) < 0)) {
if (sort_order)
parse_options_usage(report_usage, options, "s", 1);
if (field_order)
parse_options_usage(sort_order ? NULL : report_usage,
options, "F", 1);
goto error;
}
if ((report.header || report.header_only) && !quiet) {
perf_session__fprintf_info(session, stdout,
report.show_full_info);
if (report.header_only) {
if (data.is_pipe) {
/*
* we need to process first few records
* which contains PERF_RECORD_HEADER_FEATURE.
*/
perf_session__process_events(session);
}
ret = 0;
goto error;
}
} else if (use_browser == 0 && !quiet &&
!report.stats_mode && !report.tasks_mode) {
fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
stdout);
}
/*
* Only in the TUI browser we are doing integrated annotation,
* so don't allocate extra space that won't be used in the stdio
* implementation.
*/
if (ui__has_annotation() || report.symbol_ipc || report.data_type ||
report.total_cycles_mode) {
ret = symbol__annotation_init();
if (ret < 0)
goto error;
/*
* For searching by name on the "Browse map details".
* providing it only in verbose mode not to bloat too
* much struct symbol.
*/
if (verbose > 0) {
/*
* XXX: Need to provide a less kludgy way to ask for
* more space per symbol, the u32 is for the index on
* the ui browser.
* See symbol__browser_index.
*/
symbol_conf.priv_size += sizeof(u32);
}
annotation_config__init();
}
if (symbol__init(&session->header.env) < 0)
goto error;
if (report.time_str) {
ret = perf_time__parse_for_ranges(report.time_str, session,
&report.ptime_range,
&report.range_size,
&report.range_num);
if (ret < 0)
goto error;
itrace_synth_opts__set_time_range(&itrace_synth_opts,
report.ptime_range,
report.range_num);
}
#ifdef HAVE_LIBTRACEEVENT
if (session->tevent.pevent &&
tep_set_function_resolver(session->tevent.pevent,
machine__resolve_kernel_addr,
&session->machines.host) < 0) {
pr_err("%s: failed to set libtraceevent function resolver\n",
__func__);
return -1;
}
#endif
sort__setup_elide(stdout);
ret = __cmd_report(&report);
if (ret == K_SWITCH_INPUT_DATA || ret == K_RELOAD) {
perf_session__delete(session);
last_key = K_SWITCH_INPUT_DATA;
goto repeat;
} else
ret = 0;
if (!use_browser && (verbose > 2 || debug_kmaps))
perf_session__dump_kmaps(session);
error:
if (report.ptime_range) {
itrace_synth_opts__clear_time_range(&itrace_synth_opts);
zfree(&report.ptime_range);
}
if (report.block_reports) {
block_info__free_report(report.block_reports,
report.nr_block_reports);
report.block_reports = NULL;
}
zstd_fini(&(session->zstd_data));
perf_session__delete(session);
exit:
annotation_options__exit();
free(sort_order_help);
free(field_order_help);
return ret;
}
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