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perf/core improvements and fixes:

Browse Source 
New features:
 
 - Make -a/--all-cpus be the default target in 'perf record' and 'perf stat',
   just like it is with 'perf trace' (Jiri Olsa)
 
 - Introduce -q/--quiet to the 'annotate', 'diff' and 'report', fix up
   its behaviour in 'record'. This makes the output more compact by
   elliminating headers, leaving just the histogram lines (Namhyung Kim)
 
 Fixes:
 
 - Handle offline/absent CPUs (Jan Stancek)
 
 Infrastructure:
 
 - Filter out -specs=/a/b/c from CC options when building the python
   support, allowing that feature to be built with clang (Arnaldo Carvalho de Melo)
 
 - Fix DEBUG=1 build with clang (Arnaldo Carvalho de Melo)
 
 Trivial:
 
 - Fix spelling of 'preempt' in a libtraceevent function name (Steven Rostedt)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-4.11-20170220' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

New features:

 - Make -a/--all-cpus be the default target in 'perf record' and 'perf stat',
   just like it is with 'perf trace' (Jiri Olsa)

 - Introduce -q/--quiet to the 'annotate', 'diff' and 'report', fix up
   its behaviour in 'record'. This makes the output more compact by
   elliminating headers, leaving just the histogram lines (Namhyung Kim)

Fixes:

 - Handle offline/absent CPUs (Jan Stancek)

Infrastructure changes:

 - Filter out -specs=/a/b/c from CC options when building the python
   support, allowing that feature to be built with clang (Arnaldo Carvalho de Melo)

 - Fix DEBUG=1 build with clang (Arnaldo Carvalho de Melo)

Trivial changes:

 - Fix spelling of 'preempt' in a libtraceevent function name (Steven Rostedt)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2017-02-21 09:05:29 +01:00
commit 8a5897fec9
54 changed files with 256 additions and 129 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
tools/build/Makefile
View File

@ -35,8 +35,8 @@ all: $(OUTPUT)fixdep
clean:
$(call QUIET_CLEAN, fixdep)
$(Q)find . -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
$(Q)rm -f fixdep
$(Q)find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
$(Q)rm -f $(OUTPUT)fixdep
$(OUTPUT)fixdep-in.o: FORCE
$(Q)$(MAKE) $(build)=fixdep

3
tools/build/Makefile.include
View File

@ -3,4 +3,7 @@ build := -f $(srctree)/tools/build/Makefile.build dir=. obj
fixdep:
$(Q)$(MAKE) -C $(srctree)/tools/build CFLAGS= LDFLAGS= $(OUTPUT)fixdep
fixdep-clean:
$(Q)$(MAKE) -C $(srctree)/tools/build clean
.PHONY: fixdep

4
tools/lib/traceevent/event-parse.c
View File

@ -5204,13 +5204,13 @@ int pevent_data_pid(struct pevent *pevent, struct pevent_record *rec)
}
/**
* pevent_data_prempt_count - parse the preempt count from the record
* pevent_data_preempt_count - parse the preempt count from the record
* @pevent: a handle to the pevent
* @rec: the record to parse
*
* This returns the preempt count from a record.
*/
int pevent_data_prempt_count(struct pevent *pevent, struct pevent_record *rec)
int pevent_data_preempt_count(struct pevent *pevent, struct pevent_record *rec)
{
return parse_common_pc(pevent, rec->data);
}

2
tools/lib/traceevent/event-parse.h
View File

@ -709,7 +709,7 @@ void pevent_data_lat_fmt(struct pevent *pevent,
int pevent_data_type(struct pevent *pevent, struct pevent_record *rec);
struct event_format *pevent_data_event_from_type(struct pevent *pevent, int type);
int pevent_data_pid(struct pevent *pevent, struct pevent_record *rec);
int pevent_data_prempt_count(struct pevent *pevent, struct pevent_record *rec);
int pevent_data_preempt_count(struct pevent *pevent, struct pevent_record *rec);
int pevent_data_flags(struct pevent *pevent, struct pevent_record *rec);
const char *pevent_data_comm_from_pid(struct pevent *pevent, int pid);
struct cmdline;

4
tools/perf/Documentation/perf-annotate.txt
View File

@ -39,6 +39,10 @@ OPTIONS
--verbose::
Be more verbose. (Show symbol address, etc)
-q::
--quiet::
Do not show any message. (Suppress -v)
-D::
--dump-raw-trace::
Dump raw trace in ASCII.

4
tools/perf/Documentation/perf-diff.txt
View File

@ -73,6 +73,10 @@ OPTIONS
Be verbose, for instance, show the raw counts in addition to the
diff.
-q::
--quiet::
Do not show any message. (Suppress -v)
-f::
--force::
Don't do ownership validation.

2
tools/perf/Documentation/perf-record.txt
View File

@ -157,7 +157,7 @@ OPTIONS
-a::
--all-cpus::
System-wide collection from all CPUs.
System-wide collection from all CPUs (default if no target is specified).
-p::
--pid=::

4
tools/perf/Documentation/perf-report.txt
View File

@ -25,6 +25,10 @@ OPTIONS
--verbose::
Be more verbose. (show symbol address, etc)
-q::
--quiet::
Do not show any message. (Suppress -v)
-n::
--show-nr-samples::
Show the number of samples for each symbol

2
tools/perf/Documentation/perf-stat.txt
View File

@ -63,7 +63,7 @@ report::
-a::
--all-cpus::
system-wide collection from all CPUs
system-wide collection from all CPUs (default if no target is specified)
-c::
--scale::

7
tools/perf/Makefile.config
View File

@ -175,6 +175,10 @@ PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
ifeq ($(CC), clang)
PYTHON_EMBED_CCOPTS := $(filter-out -specs=%,$(PYTHON_EMBED_CCOPTS))
endif
FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
@ -601,6 +605,9 @@ else
PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
ifeq ($(CC), clang)
PYTHON_EMBED_CCOPTS := $(filter-out -specs=%,$(PYTHON_EMBED_CCOPTS))
endif
FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
ifneq ($(feature-libpython), 1)

4
tools/perf/Makefile.perf
View File

@ -726,13 +726,13 @@ config-clean:
$(call QUIET_CLEAN, config)
$(Q)$(MAKE) -C $(srctree)/tools/build/feature/ $(if $(OUTPUT),OUTPUT=$(OUTPUT)feature/,) clean >/dev/null
clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean config-clean
clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean config-clean fixdep-clean
$(call QUIET_CLEAN, core-objs) $(RM) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(LANG_BINDINGS)
$(Q)find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
$(Q)$(RM) $(OUTPUT).config-detected
$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32 $(OUTPUT)pmu-events/jevents $(OUTPUT)$(LIBJVMTI).so
$(call QUIET_CLEAN, core-gen) $(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)FEATURE-DUMP $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex* \
$(OUTPUT)util/intel-pt-decoder/inat-tables.c $(OUTPUT)fixdep \
$(OUTPUT)util/intel-pt-decoder/inat-tables.c \
$(OUTPUT)tests/llvm-src-{base,kbuild,prologue,relocation}.c \
$(OUTPUT)pmu-events/pmu-events.c
$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean

4
tools/perf/builtin-annotate.c
View File

@ -410,6 +410,7 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused)
OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show symbol address, etc)"),
OPT_BOOLEAN('q', "quiet", &quiet, "do now show any message"),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
OPT_BOOLEAN(0, "gtk", &annotate.use_gtk, "Use the GTK interface"),
@ -463,6 +464,9 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused)
annotate.sym_hist_filter = argv[0];
}
if (quiet)
perf_quiet_option();
file.path = input_name;
annotate.session = perf_session__new(&file, false, &annotate.tool);

14
tools/perf/builtin-diff.c
View File

@ -691,7 +691,7 @@ static void hists__process(struct hists *hists)
hists__precompute(hists);
hists__output_resort(hists, NULL);
hists__fprintf(hists, true, 0, 0, 0, stdout,
hists__fprintf(hists, !quiet, 0, 0, 0, stdout,
symbol_conf.use_callchain);
}
@ -739,12 +739,14 @@ static void data_process(void)
hists__link(hists_base, hists);
}
fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n",
perf_evsel__name(evsel_base));
if (!quiet) {
fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n",
perf_evsel__name(evsel_base));
}
first = false;
if (verbose || data__files_cnt > 2)
if (verbose > 0 || ((data__files_cnt > 2) && !quiet))
data__fprintf();
/* Don't sort callchain for perf diff */
@ -807,6 +809,7 @@ static const char * const diff_usage[] = {
static const struct option options[] = {
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show symbol address, etc)"),
OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"),
OPT_BOOLEAN('b', "baseline-only", &show_baseline_only,
"Show only items with match in baseline"),
OPT_CALLBACK('c', "compute", &compute,
@ -1328,6 +1331,9 @@ int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused)
argc = parse_options(argc, argv, options, diff_usage, 0);
if (quiet)
perf_quiet_option();
if (symbol__init(NULL) < 0)
return -1;

4
tools/perf/builtin-mem.c
View File

@ -42,8 +42,8 @@ static int parse_record_events(const struct option *opt,
fprintf(stderr, "%-13s%-*s%s\n",
e->tag,
verbose ? 25 : 0,
verbose ? perf_mem_events__name(j) : "",
verbose > 0 ? 25 : 0,
verbose > 0 ? perf_mem_events__name(j) : "",
e->supported ? ": available" : "");
}
exit(0);

8
tools/perf/builtin-record.c
View File

@ -432,7 +432,7 @@ static int record__open(struct record *rec)
try_again:
if (perf_evsel__open(pos, pos->cpus, pos->threads) < 0) {
if (perf_evsel__fallback(pos, errno, msg, sizeof(msg))) {
if (verbose)
if (verbose > 0)
ui__warning("%s\n", msg);
goto try_again;
}
@ -1677,8 +1677,12 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused)
argc = parse_options(argc, argv, record_options, record_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
if (quiet)
perf_quiet_option();
/* Make system wide (-a) the default target. */
if (!argc && target__none(&rec->opts.target))
usage_with_options(record_usage, record_options);
rec->opts.target.system_wide = true;
if (nr_cgroups && !rec->opts.target.system_wide) {
usage_with_options_msg(record_usage, record_options,

21
tools/perf/builtin-report.c
View File

@ -320,6 +320,9 @@ static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report
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;
@ -372,7 +375,11 @@ static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
{
struct perf_evsel *pos;
fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n", evlist->stats.total_lost_samples);
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 = perf_evsel__name(pos);
@ -382,7 +389,7 @@ static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
continue;
hists__fprintf_nr_sample_events(hists, rep, evname, stdout);
hists__fprintf(hists, true, 0, 0, rep->min_percent, stdout,
hists__fprintf(hists, !quiet, 0, 0, rep->min_percent, stdout,
symbol_conf.use_callchain);
fprintf(stdout, "\n\n");
}
@ -716,6 +723,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
"input file name"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show symbol address, etc)"),
OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
@ -863,6 +871,9 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
report.symbol_filter_str = argv[0];
}
if (quiet)
perf_quiet_option();
if (symbol_conf.vmlinux_name &&
access(symbol_conf.vmlinux_name, R_OK)) {
pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name);
@ -983,14 +994,14 @@ repeat:
goto error;
}
if (report.header || report.header_only) {
if ((report.header || report.header_only) && !quiet) {
perf_session__fprintf_info(session, stdout,
report.show_full_info);
if (report.header_only) {
ret = 0;
goto error;
}
} else if (use_browser == 0) {
} else if (use_browser == 0 && !quiet) {
fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
stdout);
}
@ -1009,7 +1020,7 @@ repeat:
* providing it only in verbose mode not to bloat too
* much struct symbol.
*/
if (verbose) {
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

12
tools/perf/builtin-sched.c
View File

@ -460,7 +460,7 @@ static struct task_desc *register_pid(struct perf_sched *sched,
BUG_ON(!sched->tasks);
sched->tasks[task->nr] = task;
if (verbose)
if (verbose > 0)
printf("registered task #%ld, PID %ld (%s)\n", sched->nr_tasks, pid, comm);
return task;
@ -794,7 +794,7 @@ replay_wakeup_event(struct perf_sched *sched,
const u32 pid = perf_evsel__intval(evsel, sample, "pid");
struct task_desc *waker, *wakee;
if (verbose) {
if (verbose > 0) {
printf("sched_wakeup event %p\n", evsel);
printf(" ... pid %d woke up %s/%d\n", sample->tid, comm, pid);
@ -822,7 +822,7 @@ static int replay_switch_event(struct perf_sched *sched,
int cpu = sample->cpu;
s64 delta;
if (verbose)
if (verbose > 0)
printf("sched_switch event %p\n", evsel);
if (cpu >= MAX_CPUS || cpu < 0)
@ -870,7 +870,7 @@ static int replay_fork_event(struct perf_sched *sched,
goto out_put;
}
if (verbose) {
if (verbose > 0) {
printf("fork event\n");
printf("... parent: %s/%d\n", thread__comm_str(parent), parent->tid);
printf("... child: %s/%d\n", thread__comm_str(child), child->tid);
@ -1573,7 +1573,7 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel,
timestamp__scnprintf_usec(timestamp, stimestamp, sizeof(stimestamp));
color_fprintf(stdout, color, " %12s secs ", stimestamp);
if (new_shortname || (verbose && sched_in->tid)) {
if (new_shortname || (verbose > 0 && sched_in->tid)) {
const char *pid_color = color;
if (thread__has_color(sched_in))
@ -2050,7 +2050,7 @@ static void save_task_callchain(struct perf_sched *sched,
if (thread__resolve_callchain(thread, cursor, evsel, sample,
NULL, NULL, sched->max_stack + 2) != 0) {
if (verbose)
if (verbose > 0)
error("Failed to resolve callchain. Skipping\n");
return;

11
tools/perf/builtin-stat.c
View File

@ -573,7 +573,7 @@ try_again:
if (errno == EINVAL || errno == ENOSYS ||
errno == ENOENT || errno == EOPNOTSUPP ||
errno == ENXIO) {
if (verbose)
if (verbose > 0)
ui__warning("%s event is not supported by the kernel.\n",
perf_evsel__name(counter));
counter->supported = false;
@ -582,7 +582,7 @@ try_again:
!(counter->leader->nr_members > 1))
continue;
} else if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) {
if (verbose)
if (verbose > 0)
ui__warning("%s\n", msg);
goto try_again;
}
@ -1765,7 +1765,7 @@ static inline int perf_env__get_cpu(struct perf_env *env, struct cpu_map *map, i
cpu = map->map[idx];
if (cpu >= env->nr_cpus_online)
if (cpu >= env->nr_cpus_avail)
return -1;
return cpu;
@ -2445,8 +2445,9 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
} else if (big_num_opt == 0) /* User passed --no-big-num */
big_num = false;
/* Make system wide (-a) the default target. */
if (!argc && target__none(&target))
usage_with_options(stat_usage, stat_options);
target.system_wide = true;
if (run_count < 0) {
pr_err("Run count must be a positive number\n");
@ -2538,7 +2539,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
status = 0;
for (run_idx = 0; forever || run_idx < run_count; run_idx++) {
if (run_count != 1 && verbose)
if (run_count != 1 && verbose > 0)
fprintf(output, "[ perf stat: executing run #%d ... ]\n",
run_idx + 1);

2
tools/perf/builtin-top.c
View File

@ -871,7 +871,7 @@ try_again:
if (perf_evsel__open(counter, top->evlist->cpus,
top->evlist->threads) < 0) {
if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) {
if (verbose)
if (verbose > 0)
ui__warning("%s\n", msg);
goto try_again;
}

6
tools/perf/builtin-trace.c
View File

@ -1399,7 +1399,7 @@ static struct syscall *trace__syscall_info(struct trace *trace,
return &trace->syscalls.table[id];
out_cant_read:
if (verbose) {
if (verbose > 0) {
fprintf(trace->output, "Problems reading syscall %d", id);
if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL)
fprintf(trace->output, "(%s)", trace->syscalls.table[id].name);
@ -1801,10 +1801,10 @@ static void print_location(FILE *f, struct perf_sample *sample,
bool print_dso, bool print_sym)
{
if ((verbose || print_dso) && al->map)
if ((verbose > 0 || print_dso) && al->map)
fprintf(f, "%s@", al->map->dso->long_name);
if ((verbose || print_sym) && al->sym)
if ((verbose > 0 || print_sym) && al->sym)
fprintf(f, "%s+0x%" PRIx64, al->sym->name,
al->addr - al->sym->start);
else if (al->map)

2
tools/perf/pmu-events/json.c
View File

@ -49,7 +49,7 @@ static char *mapfile(const char *fn, size_t *size)
int err;
int fd = open(fn, O_RDONLY);
if (fd < 0 && verbose && fn) {
if (fd < 0 && verbose > 0 && fn) {
pr_err("Error opening events file '%s': %s\n", fn,
strerror(errno));
}

2
tools/perf/tests/attr.c
View File

@ -144,7 +144,7 @@ static int run_dir(const char *d, const char *perf)
int vcnt = min(verbose, (int) sizeof(v) - 1);
char cmd[3*PATH_MAX];
if (verbose)
if (verbose > 0)
vcnt++;
snprintf(cmd, 3*PATH_MAX, PYTHON " %s/attr.py -d %s/attr/ -p %s %.*s",

2
tools/perf/tests/builtin-test.c
View File

@ -299,7 +299,7 @@ static int run_test(struct test *test, int subtest)
if (!dont_fork) {
pr_debug("test child forked, pid %d\n", getpid());
if (!verbose) {
if (verbose <= 0) {
int nullfd = open("/dev/null", O_WRONLY);
if (nullfd >= 0) {

2
tools/perf/tests/code-reading.c
View File

@ -599,7 +599,7 @@ static int do_test_code_reading(bool try_kcore)
continue;
}
if (verbose) {
if (verbose > 0) {
char errbuf[512];
perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf));
pr_debug("perf_evlist__open() failed!\n%s\n", errbuf);

2
tools/perf/tests/fdarray.c
View File

@ -19,7 +19,7 @@ static int fdarray__fprintf_prefix(struct fdarray *fda, const char *prefix, FILE
{
int printed = 0;
if (!verbose)
if (verbose <= 0)
return 0;
printed += fprintf(fp, "\n%s: ", prefix);

2
tools/perf/tests/llvm.c
View File

@ -76,7 +76,7 @@ test_llvm__fetch_bpf_obj(void **p_obj_buf,
* Skip this test if user's .perfconfig doesn't set [llvm] section
* and clang is not found in $PATH, and this is not perf test -v
*/
if (!force && (verbose == 0 &&
if (!force && (verbose <= 0 &&
!llvm_param.user_set_param &&
llvm__search_clang())) {
pr_debug("No clang and no verbosive, skip this test\n");

2
tools/perf/tests/parse-events.c
View File

@ -1808,7 +1808,7 @@ static void debug_warn(const char *warn, va_list params)
{
char msg[1024];
if (!verbose)
if (verbose <= 0)
return;
vsnprintf(msg, sizeof(msg), warn, params);

4
tools/perf/tests/perf-record.c
View File

@ -172,13 +172,13 @@ int test__PERF_RECORD(int subtest __maybe_unused)
err = perf_evlist__parse_sample(evlist, event, &sample);
if (err < 0) {
if (verbose)
if (verbose > 0)
perf_event__fprintf(event, stderr);
pr_debug("Couldn't parse sample\n");
goto out_delete_evlist;
}
if (verbose) {
if (verbose > 0) {
pr_info("%" PRIu64" %d ", sample.time, sample.cpu);
perf_event__fprintf(event, stderr);
}

2
tools/perf/tests/python-use.c
View File

@ -15,7 +15,7 @@ int test__python_use(int subtest __maybe_unused)
int ret;
if (asprintf(&cmd, "echo \"import sys ; sys.path.append('%s'); import perf\" | %s %s",
PYTHONPATH, PYTHON, verbose ? "" : "2> /dev/null") < 0)
PYTHONPATH, PYTHON, verbose > 0 ? "" : "2> /dev/null") < 0)
return -1;
ret = system(cmd) ? -1 : 0;

6
tools/perf/tests/thread-map.c
View File

@ -109,7 +109,7 @@ int test__thread_map_remove(int subtest __maybe_unused)
TEST_ASSERT_VAL("failed to allocate thread_map",
threads);
if (verbose)
if (verbose > 0)
thread_map__fprintf(threads, stderr);
TEST_ASSERT_VAL("failed to remove thread",
@ -117,7 +117,7 @@ int test__thread_map_remove(int subtest __maybe_unused)
TEST_ASSERT_VAL("thread_map count != 1", threads->nr == 1);
if (verbose)
if (verbose > 0)
thread_map__fprintf(threads, stderr);
TEST_ASSERT_VAL("failed to remove thread",
@ -125,7 +125,7 @@ int test__thread_map_remove(int subtest __maybe_unused)
TEST_ASSERT_VAL("thread_map count != 0", threads->nr == 0);
if (verbose)
if (verbose > 0)
thread_map__fprintf(threads, stderr);
TEST_ASSERT_VAL("failed to not remove thread",

4
tools/perf/tests/topology.c
View File

@ -65,7 +65,9 @@ static int check_cpu_topology(char *path, struct cpu_map *map)
session = perf_session__new(&file, false, NULL);
TEST_ASSERT_VAL("can't get session", session);
for (i = 0; i < session->header.env.nr_cpus_online; i++) {
for (i = 0; i < session->header.env.nr_cpus_avail; i++) {
if (!cpu_map__has(map, i))
continue;
pr_debug("CPU %d, core %d, socket %d\n", i,
session->header.env.cpu[i].core_id,
session->header.env.cpu[i].socket_id);

2
tools/perf/tests/vmlinux-kallsyms.c
View File

@ -168,7 +168,7 @@ next_pair:
err = -1;
}
if (!verbose)
if (verbose <= 0)
goto out;
header_printed = false;

6
tools/perf/ui/browsers/map.c
View File

@ -73,7 +73,7 @@ static int map_browser__run(struct map_browser *browser)
if (ui_browser__show(&browser->b, browser->map->dso->long_name,
"Press ESC to exit, %s / to search",
verbose ? "" : "restart with -v to use") < 0)
verbose > 0 ? "" : "restart with -v to use") < 0)
return -1;
while (1) {
@ -81,7 +81,7 @@ static int map_browser__run(struct map_browser *browser)
switch (key) {
case '/':
if (verbose)
if (verbose > 0)
map_browser__search(browser);
default:
break;
@ -117,7 +117,7 @@ int map__browse(struct map *map)
if (maxaddr < pos->end)
maxaddr = pos->end;
if (verbose) {
if (verbose > 0) {
u32 *idx = symbol__browser_index(pos);
*idx = mb.b.nr_entries;
}

2
tools/perf/ui/hist.c
View File

@ -648,7 +648,7 @@ unsigned int hists__sort_list_width(struct hists *hists)
ret += fmt->width(fmt, &dummy_hpp, hists);
}
if (verbose && hists__has(hists, sym)) /* Addr + origin */
if (verbose > 0 && hists__has(hists, sym)) /* Addr + origin */
ret += 3 + BITS_PER_LONG / 4;
return ret;

2
tools/perf/util/annotate.c
View File

@ -1768,7 +1768,7 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map,
printf("%-*.*s----\n",
graph_dotted_len, graph_dotted_len, graph_dotted_line);
if (verbose)
if (verbose > 0)
symbol__annotate_hits(sym, evsel);
list_for_each_entry(pos, &notes->src->source, node) {

22
tools/perf/util/cpumap.c
View File

@ -9,6 +9,7 @@
#include "asm/bug.h"
static int max_cpu_num;
static int max_present_cpu_num;
static int max_node_num;
static int *cpunode_map;
@ -442,6 +443,7 @@ static void set_max_cpu_num(void)
/* set up default */
max_cpu_num = 4096;
max_present_cpu_num = 4096;
mnt = sysfs__mountpoint();
if (!mnt)
@ -455,6 +457,17 @@ static void set_max_cpu_num(void)
}
ret = get_max_num(path, &max_cpu_num);
if (ret)
goto out;
/* get the highest present cpu number for a sparse allocation */
ret = snprintf(path, PATH_MAX, "%s/devices/system/cpu/present", mnt);
if (ret == PATH_MAX) {
pr_err("sysfs path crossed PATH_MAX(%d) size\n", PATH_MAX);
goto out;
}
ret = get_max_num(path, &max_present_cpu_num);
out:
if (ret)
@ -505,6 +518,15 @@ int cpu__max_cpu(void)
return max_cpu_num;
}
int cpu__max_present_cpu(void)
{
if (unlikely(!max_present_cpu_num))
set_max_cpu_num();
return max_present_cpu_num;
}
int cpu__get_node(int cpu)
{
if (unlikely(cpunode_map == NULL)) {

1
tools/perf/util/cpumap.h
View File

@ -62,6 +62,7 @@ int cpu__setup_cpunode_map(void);
int cpu__max_node(void);
int cpu__max_cpu(void);
int cpu__max_present_cpu(void);
int cpu__get_node(int cpu);
int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res,

17
tools/perf/util/debug.c
View File

@ -203,11 +203,28 @@ int perf_debug_option(const char *str)
v = (v < 0) || (v > 10) ? 0 : v;
}
if (quiet)
v = -1;
*var->ptr = v;
free(s);
return 0;
}
int perf_quiet_option(void)
{
struct debug_variable *var = &debug_variables[0];
/* disable all debug messages */
while (var->name) {
*var->ptr = -1;
var++;
}
quiet = true;
return 0;
}
#define DEBUG_WRAPPER(__n, __l) \
static int pr_ ## __n ## _wrapper(const char *fmt, ...) \
{ \

1
tools/perf/util/debug.h
View File

@ -54,5 +54,6 @@ int veprintf(int level, int var, const char *fmt, va_list args);
int perf_debug_option(const char *str);
void perf_debug_setup(void);
int perf_quiet_option(void);
#endif /* __PERF_DEBUG_H */

2
tools/perf/util/dso.c
View File

@ -1058,7 +1058,7 @@ int dso__name_len(const struct dso *dso)
{
if (!dso)
return strlen("[unknown]");
if (verbose)
if (verbose > 0)
return dso->long_name_len;
return dso->short_name_len;

2
tools/perf/util/env.c
View File

@ -66,7 +66,7 @@ int perf_env__read_cpu_topology_map(struct perf_env *env)
return 0;
if (env->nr_cpus_avail == 0)
env->nr_cpus_avail = sysconf(_SC_NPROCESSORS_CONF);
env->nr_cpus_avail = cpu__max_present_cpu();
nr_cpus = env->nr_cpus_avail;
if (nr_cpus == -1)

33
tools/perf/util/header.c
View File

@ -295,11 +295,7 @@ static int write_nrcpus(int fd, struct perf_header *h __maybe_unused,
u32 nrc, nra;
int ret;
nr = sysconf(_SC_NPROCESSORS_CONF);
if (nr < 0)
return -1;
nrc = (u32)(nr & UINT_MAX);
nrc = cpu__max_present_cpu();
nr = sysconf(_SC_NPROCESSORS_ONLN);
if (nr < 0)
@ -505,24 +501,29 @@ static void free_cpu_topo(struct cpu_topo *tp)
static struct cpu_topo *build_cpu_topology(void)
{
struct cpu_topo *tp;
struct cpu_topo *tp = NULL;
void *addr;
u32 nr, i;
size_t sz;
long ncpus;
int ret = -1;
struct cpu_map *map;
ncpus = sysconf(_SC_NPROCESSORS_CONF);
if (ncpus < 0)
ncpus = cpu__max_present_cpu();
/* build online CPU map */
map = cpu_map__new(NULL);
if (map == NULL) {
pr_debug("failed to get system cpumap\n");
return NULL;
}
nr = (u32)(ncpus & UINT_MAX);
sz = nr * sizeof(char *);
addr = calloc(1, sizeof(*tp) + 2 * sz);
if (!addr)
return NULL;
goto out_free;
tp = addr;
tp->cpu_nr = nr;
@ -532,10 +533,16 @@ static struct cpu_topo *build_cpu_topology(void)
tp->thread_siblings = addr;
for (i = 0; i < nr; i++) {
if (!cpu_map__has(map, i))
continue;
ret = build_cpu_topo(tp, i);
if (ret < 0)
break;
}
out_free:
cpu_map__put(map);
if (ret) {
free_cpu_topo(tp);
tp = NULL;
@ -1126,7 +1133,7 @@ static void print_cpu_topology(struct perf_header *ph, int fd __maybe_unused,
{
int nr, i;
char *str;
int cpu_nr = ph->env.nr_cpus_online;
int cpu_nr = ph->env.nr_cpus_avail;
nr = ph->env.nr_sibling_cores;
str = ph->env.sibling_cores;
@ -1781,7 +1788,7 @@ static int process_cpu_topology(struct perf_file_section *section,
u32 nr, i;
char *str;
struct strbuf sb;
int cpu_nr = ph->env.nr_cpus_online;
int cpu_nr = ph->env.nr_cpus_avail;
u64 size = 0;
ph->env.cpu = calloc(cpu_nr, sizeof(*ph->env.cpu));
@ -1862,7 +1869,7 @@ static int process_cpu_topology(struct perf_file_section *section,
if (ph->needs_swap)
nr = bswap_32(nr);
if (nr > (u32)cpu_nr) {
if (nr != (u32)-1 && nr > (u32)cpu_nr) {
pr_debug("socket_id number is too big."
"You may need to upgrade the perf tool.\n");
goto free_cpu;

6
tools/perf/util/hist.c
View File

@ -69,7 +69,7 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
*/
if (h->ms.sym) {
symlen = h->ms.sym->namelen + 4;
if (verbose)
if (verbose > 0)
symlen += BITS_PER_LONG / 4 + 2 + 3;
hists__new_col_len(hists, HISTC_SYMBOL, symlen);
} else {
@ -93,7 +93,7 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
if (h->branch_info) {
if (h->branch_info->from.sym) {
symlen = (int)h->branch_info->from.sym->namelen + 4;
if (verbose)
if (verbose > 0)
symlen += BITS_PER_LONG / 4 + 2 + 3;
hists__new_col_len(hists, HISTC_SYMBOL_FROM, symlen);
@ -107,7 +107,7 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
if (h->branch_info->to.sym) {
symlen = (int)h->branch_info->to.sym->namelen + 4;
if (verbose)
if (verbose > 0)
symlen += BITS_PER_LONG / 4 + 2 + 3;
hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen);

71
tools/perf/util/parse-events.c
View File

@ -2318,24 +2318,20 @@ int parse_events__is_hardcoded_term(struct parse_events_term *term)
return term->type_term != PARSE_EVENTS__TERM_TYPE_USER;
}
static int new_term(struct parse_events_term **_term, int type_val,
int type_term, char *config,
char *str, u64 num, int err_term, int err_val)
static int new_term(struct parse_events_term **_term,
struct parse_events_term *temp,
char *str, u64 num)
{
struct parse_events_term *term;
term = zalloc(sizeof(*term));
term = malloc(sizeof(*term));
if (!term)
return -ENOMEM;
*term = *temp;
INIT_LIST_HEAD(&term->list);
term->type_val = type_val;
term->type_term = type_term;
term->config = config;
term->err_term = err_term;
term->err_val = err_val;
switch (type_val) {
switch (term->type_val) {
case PARSE_EVENTS__TERM_TYPE_NUM:
term->val.num = num;
break;
@ -2353,15 +2349,22 @@ static int new_term(struct parse_events_term **_term, int type_val,
int parse_events_term__num(struct parse_events_term **term,
int type_term, char *config, u64 num,
bool no_value,
void *loc_term_, void *loc_val_)
{
YYLTYPE *loc_term = loc_term_;
YYLTYPE *loc_val = loc_val_;
return new_term(term, PARSE_EVENTS__TERM_TYPE_NUM, type_term,
config, NULL, num,
loc_term ? loc_term->first_column : 0,
loc_val ? loc_val->first_column : 0);
struct parse_events_term temp = {
.type_val = PARSE_EVENTS__TERM_TYPE_NUM,
.type_term = type_term,
.config = config,
.no_value = no_value,
.err_term = loc_term ? loc_term->first_column : 0,
.err_val = loc_val ? loc_val->first_column : 0,
};
return new_term(term, &temp, NULL, num);
}
int parse_events_term__str(struct parse_events_term **term,
@ -2371,37 +2374,45 @@ int parse_events_term__str(struct parse_events_term **term,
YYLTYPE *loc_term = loc_term_;
YYLTYPE *loc_val = loc_val_;
return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, type_term,
config, str, 0,
loc_term ? loc_term->first_column : 0,
loc_val ? loc_val->first_column : 0);
struct parse_events_term temp = {
.type_val = PARSE_EVENTS__TERM_TYPE_STR,
.type_term = type_term,
.config = config,
.err_term = loc_term ? loc_term->first_column : 0,
.err_val = loc_val ? loc_val->first_column : 0,
};
return new_term(term, &temp, str, 0);
}
int parse_events_term__sym_hw(struct parse_events_term **term,
char *config, unsigned idx)
{
struct event_symbol *sym;
struct parse_events_term temp = {
.type_val = PARSE_EVENTS__TERM_TYPE_STR,
.type_term = PARSE_EVENTS__TERM_TYPE_USER,
.config = config ?: (char *) "event",
};
BUG_ON(idx >= PERF_COUNT_HW_MAX);
sym = &event_symbols_hw[idx];
if (config)
return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
PARSE_EVENTS__TERM_TYPE_USER, config,
(char *) sym->symbol, 0, 0, 0);
else
return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
PARSE_EVENTS__TERM_TYPE_USER,
(char *) "event", (char *) sym->symbol,
0, 0, 0);
return new_term(term, &temp, (char *) sym->symbol, 0);
}
int parse_events_term__clone(struct parse_events_term **new,
struct parse_events_term *term)
{
return new_term(new, term->type_val, term->type_term, term->config,
term->val.str, term->val.num,
term->err_term, term->err_val);
struct parse_events_term temp = {
.type_val = term->type_val,
.type_term = term->type_term,
.config = term->config,
.err_term = term->err_term,
.err_val = term->err_val,
};
return new_term(new, &temp, term->val.str, term->val.num);
}
void parse_events_terms__purge(struct list_head *terms)

2
tools/perf/util/parse-events.h
View File

@ -94,6 +94,7 @@ struct parse_events_term {
int type_term;
struct list_head list;
bool used;
bool no_value;
/* error string indexes for within parsed string */
int err_term;
@ -122,6 +123,7 @@ void parse_events__shrink_config_terms(void);
int parse_events__is_hardcoded_term(struct parse_events_term *term);
int parse_events_term__num(struct parse_events_term **term,
int type_term, char *config, u64 num,
bool novalue,
void *loc_term, void *loc_val);
int parse_events_term__str(struct parse_events_term **term,
int type_term, char *config, char *str,

14
tools/perf/util/parse-events.y
View File

@ -252,7 +252,7 @@ PE_KERNEL_PMU_EVENT sep_dc
if (!strcasecmp(alias->name, $1)) {
ALLOC_LIST(head);
ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
$1, 1, &@1, NULL));
$1, 1, false, &@1, NULL));
list_add_tail(&term->list, head);
if (!parse_events_add_pmu(data, list,
@ -282,7 +282,7 @@ PE_PMU_EVENT_PRE '-' PE_PMU_EVENT_SUF sep_dc
ALLOC_LIST(head);
ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
&pmu_name, 1, &@1, NULL));
&pmu_name, 1, false, &@1, NULL));
list_add_tail(&term->list, head);
ALLOC_LIST(list);
@ -548,7 +548,7 @@ PE_NAME '=' PE_VALUE
struct parse_events_term *term;
ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
$1, $3, &@1, &@3));
$1, $3, false, &@1, &@3));
$$ = term;
}
|
@ -566,7 +566,7 @@ PE_NAME
struct parse_events_term *term;
ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
$1, 1, &@1, NULL));
$1, 1, true, &@1, NULL));
$$ = term;
}
|
@ -591,7 +591,7 @@ PE_TERM '=' PE_VALUE
{
struct parse_events_term *term;
ABORT_ON(parse_events_term__num(&term, (int)$1, NULL, $3, &@1, &@3));
ABORT_ON(parse_events_term__num(&term, (int)$1, NULL, $3, false, &@1, &@3));
$$ = term;
}
|
@ -599,7 +599,7 @@ PE_TERM
{
struct parse_events_term *term;
ABORT_ON(parse_events_term__num(&term, (int)$1, NULL, 1, &@1, NULL));
ABORT_ON(parse_events_term__num(&term, (int)$1, NULL, 1, true, &@1, NULL));
$$ = term;
}
|
@ -620,7 +620,7 @@ PE_NAME array '=' PE_VALUE
struct parse_events_term *term;
ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
$1, $4, &@1, &@4));
$1, $4, false, &@1, &@4));
term->array = $2;
$$ = term;
}

21
tools/perf/util/pmu.c
View File

@ -745,7 +745,7 @@ static int pmu_resolve_param_term(struct parse_events_term *term,
}
}
if (verbose)
if (verbose > 0)
printf("Required parameter '%s' not specified\n", term->config);
return -1;
@ -803,7 +803,7 @@ static int pmu_config_term(struct list_head *formats,
format = pmu_find_format(formats, term->config);
if (!format) {
if (verbose)
if (verbose > 0)
printf("Invalid event/parameter '%s'\n", term->config);
if (err) {
char *pmu_term = pmu_formats_string(formats);
@ -834,11 +834,20 @@ static int pmu_config_term(struct list_head *formats,
* Either directly use a numeric term, or try to translate string terms
* using event parameters.
*/
if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM)
if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM) {
if (term->no_value &&
bitmap_weight(format->bits, PERF_PMU_FORMAT_BITS) > 1) {
if (err) {
err->idx = term->err_val;
err->str = strdup("no value assigned for term");
}
return -EINVAL;
}
val = term->val.num;
else if (term->type_val == PARSE_EVENTS__TERM_TYPE_STR) {
} else if (term->type_val == PARSE_EVENTS__TERM_TYPE_STR) {
if (strcmp(term->val.str, "?")) {
if (verbose) {
if (verbose > 0) {
pr_info("Invalid sysfs entry %s=%s\n",
term->config, term->val.str);
}
@ -1223,7 +1232,7 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
printf("%*s", 8, "[");
wordwrap(aliases[j].desc, 8, columns, 0);
printf("]\n");
if (verbose)
if (verbose > 0)
printf("%*s%s/%s/\n", 8, "", aliases[j].pmu, aliases[j].str);
} else
printf(" %-50s [Kernel PMU event]\n", aliases[j].name);

2
tools/perf/util/probe-event.c
View File

@ -594,7 +594,7 @@ static int find_perf_probe_point_from_dwarf(struct probe_trace_point *tp,
pr_debug("try to find information at %" PRIx64 " in %s\n", addr,
tp->module ? : "kernel");
dinfo = debuginfo_cache__open(tp->module, verbose == 0);
dinfo = debuginfo_cache__open(tp->module, verbose <= 0);
if (dinfo)
ret = debuginfo__find_probe_point(dinfo,
(unsigned long)addr, pp);

4
tools/perf/util/scripting-engines/trace-event-python.c
View File

@ -368,10 +368,10 @@ static PyObject *python_process_callchain(struct perf_sample *sample,
if (node->map) {
struct map *map = node->map;
const char *dsoname = "[unknown]";
if (map && map->dso && (map->dso->name || map->dso->long_name)) {
if (map && map->dso) {
if (symbol_conf.show_kernel_path && map->dso->long_name)
dsoname = map->dso->long_name;
else if (map->dso->name)
else
dsoname = map->dso->name;
}
pydict_set_item_string_decref(pyelem, "dso",

2
tools/perf/util/session.c
View File

@ -932,7 +932,7 @@ static void branch_stack__printf(struct perf_sample *sample)
printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 " %hu cycles %s%s%s%s %x\n",
i, e->from, e->to,
e->flags.cycles,
(unsigned short)e->flags.cycles,
e->flags.mispred ? "M" : " ",
e->flags.predicted ? "P" : " ",
e->flags.abort ? "A" : " ",

9
tools/perf/util/setup.py
View File

@ -1,8 +1,15 @@
#!/usr/bin/python2
from distutils.core import setup, Extension
from os import getenv
cc = getenv("CC")
if cc == "clang":
from _sysconfigdata import build_time_vars
from re import sub
build_time_vars["CFLAGS"] = sub("-specs=[^ ]+", "", build_time_vars["CFLAGS"])
from distutils.core import setup, Extension
from distutils.command.build_ext import build_ext as _build_ext
from distutils.command.install_lib import install_lib as _install_lib

8
tools/perf/util/sort.c
View File

@ -151,7 +151,7 @@ static int64_t _sort__dso_cmp(struct map *map_l, struct map *map_r)
if (!dso_l || !dso_r)
return cmp_null(dso_r, dso_l);
if (verbose) {
if (verbose > 0) {
dso_name_l = dso_l->long_name;
dso_name_r = dso_r->long_name;
} else {
@ -172,8 +172,8 @@ static int _hist_entry__dso_snprintf(struct map *map, char *bf,
size_t size, unsigned int width)
{
if (map && map->dso) {
const char *dso_name = !verbose ? map->dso->short_name :
map->dso->long_name;
const char *dso_name = verbose > 0 ? map->dso->long_name :
map->dso->short_name;
return repsep_snprintf(bf, size, "%-*.*s", width, width, dso_name);
}
@ -261,7 +261,7 @@ static int _hist_entry__sym_snprintf(struct map *map, struct symbol *sym,
{
size_t ret = 0;
if (verbose) {
if (verbose > 0) {
char o = map ? dso__symtab_origin(map->dso) : '!';
ret += repsep_snprintf(bf, size, "%-#*llx %c ",
BITS_PER_LONG / 4 + 2, ip, o);

2
tools/perf/util/stat.c
View File

@ -344,7 +344,7 @@ int perf_stat_process_counter(struct perf_stat_config *config,
for (i = 0; i < 3; i++)
update_stats(&ps->res_stats[i], count[i]);
if (verbose) {
if (verbose > 0) {
fprintf(config->output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
perf_evsel__name(counter), count[0], count[1], count[2]);
}

2
tools/perf/util/symbol-elf.c
View File

@ -213,7 +213,7 @@ static bool want_demangle(bool is_kernel_sym)
static char *demangle_sym(struct dso *dso, int kmodule, const char *elf_name)
{
int demangle_flags = verbose ? (DMGL_PARAMS | DMGL_ANSI) : DMGL_NO_OPTS;
int demangle_flags = verbose > 0 ? (DMGL_PARAMS | DMGL_ANSI) : DMGL_NO_OPTS;
char *demangled = NULL;
/*