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Diffstat (limited to 'tools/perf/builtin-test.c')
-rw-r--r--tools/perf/builtin-test.c353
1 files changed, 337 insertions, 16 deletions
diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c
index 1d592f5cbea..484f26cc0c0 100644
--- a/tools/perf/builtin-test.c
+++ b/tools/perf/builtin-test.c
@@ -14,11 +14,13 @@
#include "util/symbol.h"
#include "util/thread_map.h"
#include "util/pmu.h"
+#include "event-parse.h"
#include "../../include/linux/hw_breakpoint.h"
#include <sys/mman.h>
-static int vmlinux_matches_kallsyms_filter(struct map *map __used, struct symbol *sym)
+static int vmlinux_matches_kallsyms_filter(struct map *map __maybe_unused,
+ struct symbol *sym)
{
bool *visited = symbol__priv(sym);
*visited = true;
@@ -294,7 +296,7 @@ static int test__open_syscall_event(void)
goto out_thread_map_delete;
}
- if (perf_evsel__open_per_thread(evsel, threads, false, NULL) < 0) {
+ if (perf_evsel__open_per_thread(evsel, threads) < 0) {
pr_debug("failed to open counter: %s, "
"tweak /proc/sys/kernel/perf_event_paranoid?\n",
strerror(errno));
@@ -369,7 +371,7 @@ static int test__open_syscall_event_on_all_cpus(void)
goto out_thread_map_delete;
}
- if (perf_evsel__open(evsel, cpus, threads, false, NULL) < 0) {
+ if (perf_evsel__open(evsel, cpus, threads) < 0) {
pr_debug("failed to open counter: %s, "
"tweak /proc/sys/kernel/perf_event_paranoid?\n",
strerror(errno));
@@ -533,7 +535,7 @@ static int test__basic_mmap(void)
perf_evlist__add(evlist, evsels[i]);
- if (perf_evsel__open(evsels[i], cpus, threads, false, NULL) < 0) {
+ if (perf_evsel__open(evsels[i], cpus, threads) < 0) {
pr_debug("failed to open counter: %s, "
"tweak /proc/sys/kernel/perf_event_paranoid?\n",
strerror(errno));
@@ -562,7 +564,7 @@ static int test__basic_mmap(void)
goto out_munmap;
}
- err = perf_evlist__parse_sample(evlist, event, &sample, false);
+ err = perf_evlist__parse_sample(evlist, event, &sample);
if (err) {
pr_err("Can't parse sample, err = %d\n", err);
goto out_munmap;
@@ -710,7 +712,7 @@ static int test__PERF_RECORD(void)
/*
* Config the evsels, setting attr->comm on the first one, etc.
*/
- evsel = list_entry(evlist->entries.next, struct perf_evsel, node);
+ evsel = perf_evlist__first(evlist);
evsel->attr.sample_type |= PERF_SAMPLE_CPU;
evsel->attr.sample_type |= PERF_SAMPLE_TID;
evsel->attr.sample_type |= PERF_SAMPLE_TIME;
@@ -737,7 +739,7 @@ static int test__PERF_RECORD(void)
* Call sys_perf_event_open on all the fds on all the evsels,
* grouping them if asked to.
*/
- err = perf_evlist__open(evlist, opts.group);
+ err = perf_evlist__open(evlist);
if (err < 0) {
pr_debug("perf_evlist__open: %s\n", strerror(errno));
goto out_delete_evlist;
@@ -779,7 +781,7 @@ static int test__PERF_RECORD(void)
if (type < PERF_RECORD_MAX)
nr_events[type]++;
- err = perf_evlist__parse_sample(evlist, event, &sample, false);
+ err = perf_evlist__parse_sample(evlist, event, &sample);
if (err < 0) {
if (verbose)
perf_event__fprintf(event, stderr);
@@ -996,7 +998,9 @@ static u64 mmap_read_self(void *addr)
/*
* If the RDPMC instruction faults then signal this back to the test parent task:
*/
-static void segfault_handler(int sig __used, siginfo_t *info __used, void *uc __used)
+static void segfault_handler(int sig __maybe_unused,
+ siginfo_t *info __maybe_unused,
+ void *uc __maybe_unused)
{
exit(-1);
}
@@ -1023,14 +1027,16 @@ static int __test__rdpmc(void)
fd = sys_perf_event_open(&attr, 0, -1, -1, 0);
if (fd < 0) {
- die("Error: sys_perf_event_open() syscall returned "
- "with %d (%s)\n", fd, strerror(errno));
+ pr_err("Error: sys_perf_event_open() syscall returned "
+ "with %d (%s)\n", fd, strerror(errno));
+ return -1;
}
addr = mmap(NULL, page_size, PROT_READ, MAP_SHARED, fd, 0);
if (addr == (void *)(-1)) {
- die("Error: mmap() syscall returned "
- "with (%s)\n", strerror(errno));
+ pr_err("Error: mmap() syscall returned with (%s)\n",
+ strerror(errno));
+ goto out_close;
}
for (n = 0; n < 6; n++) {
@@ -1051,9 +1057,9 @@ static int __test__rdpmc(void)
}
munmap(addr, page_size);
- close(fd);
-
pr_debug(" ");
+out_close:
+ close(fd);
if (!delta_sum)
return -1;
@@ -1092,6 +1098,309 @@ static int test__perf_pmu(void)
return perf_pmu__test();
}
+static int perf_evsel__roundtrip_cache_name_test(void)
+{
+ char name[128];
+ int type, op, err = 0, ret = 0, i, idx;
+ struct perf_evsel *evsel;
+ struct perf_evlist *evlist = perf_evlist__new(NULL, NULL);
+
+ if (evlist == NULL)
+ return -ENOMEM;
+
+ for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
+ for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
+ /* skip invalid cache type */
+ if (!perf_evsel__is_cache_op_valid(type, op))
+ continue;
+
+ for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
+ __perf_evsel__hw_cache_type_op_res_name(type, op, i,
+ name, sizeof(name));
+ err = parse_events(evlist, name, 0);
+ if (err)
+ ret = err;
+ }
+ }
+ }
+
+ idx = 0;
+ evsel = perf_evlist__first(evlist);
+
+ for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
+ for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
+ /* skip invalid cache type */
+ if (!perf_evsel__is_cache_op_valid(type, op))
+ continue;
+
+ for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
+ __perf_evsel__hw_cache_type_op_res_name(type, op, i,
+ name, sizeof(name));
+ if (evsel->idx != idx)
+ continue;
+
+ ++idx;
+
+ if (strcmp(perf_evsel__name(evsel), name)) {
+ pr_debug("%s != %s\n", perf_evsel__name(evsel), name);
+ ret = -1;
+ }
+
+ evsel = perf_evsel__next(evsel);
+ }
+ }
+ }
+
+ perf_evlist__delete(evlist);
+ return ret;
+}
+
+static int __perf_evsel__name_array_test(const char *names[], int nr_names)
+{
+ int i, err;
+ struct perf_evsel *evsel;
+ struct perf_evlist *evlist = perf_evlist__new(NULL, NULL);
+
+ if (evlist == NULL)
+ return -ENOMEM;
+
+ for (i = 0; i < nr_names; ++i) {
+ err = parse_events(evlist, names[i], 0);
+ if (err) {
+ pr_debug("failed to parse event '%s', err %d\n",
+ names[i], err);
+ goto out_delete_evlist;
+ }
+ }
+
+ err = 0;
+ list_for_each_entry(evsel, &evlist->entries, node) {
+ if (strcmp(perf_evsel__name(evsel), names[evsel->idx])) {
+ --err;
+ pr_debug("%s != %s\n", perf_evsel__name(evsel), names[evsel->idx]);
+ }
+ }
+
+out_delete_evlist:
+ perf_evlist__delete(evlist);
+ return err;
+}
+
+#define perf_evsel__name_array_test(names) \
+ __perf_evsel__name_array_test(names, ARRAY_SIZE(names))
+
+static int perf_evsel__roundtrip_name_test(void)
+{
+ int err = 0, ret = 0;
+
+ err = perf_evsel__name_array_test(perf_evsel__hw_names);
+ if (err)
+ ret = err;
+
+ err = perf_evsel__name_array_test(perf_evsel__sw_names);
+ if (err)
+ ret = err;
+
+ err = perf_evsel__roundtrip_cache_name_test();
+ if (err)
+ ret = err;
+
+ return ret;
+}
+
+static int perf_evsel__test_field(struct perf_evsel *evsel, const char *name,
+ int size, bool should_be_signed)
+{
+ struct format_field *field = perf_evsel__field(evsel, name);
+ int is_signed;
+ int ret = 0;
+
+ if (field == NULL) {
+ pr_debug("%s: \"%s\" field not found!\n", evsel->name, name);
+ return -1;
+ }
+
+ is_signed = !!(field->flags | FIELD_IS_SIGNED);
+ if (should_be_signed && !is_signed) {
+ pr_debug("%s: \"%s\" signedness(%d) is wrong, should be %d\n",
+ evsel->name, name, is_signed, should_be_signed);
+ ret = -1;
+ }
+
+ if (field->size != size) {
+ pr_debug("%s: \"%s\" size (%d) should be %d!\n",
+ evsel->name, name, field->size, size);
+ ret = -1;
+ }
+
+ return ret;
+}
+
+static int perf_evsel__tp_sched_test(void)
+{
+ struct perf_evsel *evsel = perf_evsel__newtp("sched", "sched_switch", 0);
+ int ret = 0;
+
+ if (evsel == NULL) {
+ pr_debug("perf_evsel__new\n");
+ return -1;
+ }
+
+ if (perf_evsel__test_field(evsel, "prev_comm", 16, true))
+ ret = -1;
+
+ if (perf_evsel__test_field(evsel, "prev_pid", 4, true))
+ ret = -1;
+
+ if (perf_evsel__test_field(evsel, "prev_prio", 4, true))
+ ret = -1;
+
+ if (perf_evsel__test_field(evsel, "prev_state", 8, true))
+ ret = -1;
+
+ if (perf_evsel__test_field(evsel, "next_comm", 16, true))
+ ret = -1;
+
+ if (perf_evsel__test_field(evsel, "next_pid", 4, true))
+ ret = -1;
+
+ if (perf_evsel__test_field(evsel, "next_prio", 4, true))
+ ret = -1;
+
+ perf_evsel__delete(evsel);
+
+ evsel = perf_evsel__newtp("sched", "sched_wakeup", 0);
+
+ if (perf_evsel__test_field(evsel, "comm", 16, true))
+ ret = -1;
+
+ if (perf_evsel__test_field(evsel, "pid", 4, true))
+ ret = -1;
+
+ if (perf_evsel__test_field(evsel, "prio", 4, true))
+ ret = -1;
+
+ if (perf_evsel__test_field(evsel, "success", 4, true))
+ ret = -1;
+
+ if (perf_evsel__test_field(evsel, "target_cpu", 4, true))
+ ret = -1;
+
+ return ret;
+}
+
+static int test__syscall_open_tp_fields(void)
+{
+ struct perf_record_opts opts = {
+ .target = {
+ .uid = UINT_MAX,
+ .uses_mmap = true,
+ },
+ .no_delay = true,
+ .freq = 1,
+ .mmap_pages = 256,
+ .raw_samples = true,
+ };
+ const char *filename = "/etc/passwd";
+ int flags = O_RDONLY | O_DIRECTORY;
+ struct perf_evlist *evlist = perf_evlist__new(NULL, NULL);
+ struct perf_evsel *evsel;
+ int err = -1, i, nr_events = 0, nr_polls = 0;
+
+ if (evlist == NULL) {
+ pr_debug("%s: perf_evlist__new\n", __func__);
+ goto out;
+ }
+
+ evsel = perf_evsel__newtp("syscalls", "sys_enter_open", 0);
+ if (evsel == NULL) {
+ pr_debug("%s: perf_evsel__newtp\n", __func__);
+ goto out_delete_evlist;
+ }
+
+ perf_evlist__add(evlist, evsel);
+
+ err = perf_evlist__create_maps(evlist, &opts.target);
+ if (err < 0) {
+ pr_debug("%s: perf_evlist__create_maps\n", __func__);
+ goto out_delete_evlist;
+ }
+
+ perf_evsel__config(evsel, &opts, evsel);
+
+ evlist->threads->map[0] = getpid();
+
+ err = perf_evlist__open(evlist);
+ if (err < 0) {
+ pr_debug("perf_evlist__open: %s\n", strerror(errno));
+ goto out_delete_evlist;
+ }
+
+ err = perf_evlist__mmap(evlist, UINT_MAX, false);
+ if (err < 0) {
+ pr_debug("perf_evlist__mmap: %s\n", strerror(errno));
+ goto out_delete_evlist;
+ }
+
+ perf_evlist__enable(evlist);
+
+ /*
+ * Generate the event:
+ */
+ open(filename, flags);
+
+ while (1) {
+ int before = nr_events;
+
+ for (i = 0; i < evlist->nr_mmaps; i++) {
+ union perf_event *event;
+
+ while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) {
+ const u32 type = event->header.type;
+ int tp_flags;
+ struct perf_sample sample;
+
+ ++nr_events;
+
+ if (type != PERF_RECORD_SAMPLE)
+ continue;
+
+ err = perf_evsel__parse_sample(evsel, event, &sample);
+ if (err) {
+ pr_err("Can't parse sample, err = %d\n", err);
+ goto out_munmap;
+ }
+
+ tp_flags = perf_evsel__intval(evsel, &sample, "flags");
+
+ if (flags != tp_flags) {
+ pr_debug("%s: Expected flags=%#x, got %#x\n",
+ __func__, flags, tp_flags);
+ goto out_munmap;
+ }
+
+ goto out_ok;
+ }
+ }
+
+ if (nr_events == before)
+ poll(evlist->pollfd, evlist->nr_fds, 10);
+
+ if (++nr_polls > 5) {
+ pr_debug("%s: no events!\n", __func__);
+ goto out_munmap;
+ }
+ }
+out_ok:
+ err = 0;
+out_munmap:
+ perf_evlist__munmap(evlist);
+out_delete_evlist:
+ perf_evlist__delete(evlist);
+out:
+ return err;
+}
+
static struct test {
const char *desc;
int (*func)(void);
@@ -1135,6 +1444,18 @@ static struct test {
.func = dso__test_data,
},
{
+ .desc = "roundtrip evsel->name check",
+ .func = perf_evsel__roundtrip_name_test,
+ },
+ {
+ .desc = "Check parsing of sched tracepoints fields",
+ .func = perf_evsel__tp_sched_test,
+ },
+ {
+ .desc = "Generate and check syscalls:sys_enter_open event fields",
+ .func = test__syscall_open_tp_fields,
+ },
+ {
.func = NULL,
},
};
@@ -1199,7 +1520,7 @@ static int perf_test__list(int argc, const char **argv)
return 0;
}
-int cmd_test(int argc, const char **argv, const char *prefix __used)
+int cmd_test(int argc, const char **argv, const char *prefix __maybe_unused)
{
const char * const test_usage[] = {
"perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]",
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 08:25:06 +0000