perf/tests/evsel-tp-sched.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 #include <linux/err.h>
0003 #include <traceevent/event-parse.h>
0004 #include "evsel.h"
0005 #include "tests.h"
0006 #include "debug.h"
0007
0008 static int evsel__test_field(struct evsel *evsel, const char *name, int size, bool should_be_signed)
0009 {
0010     struct tep_format_field *field = evsel__field(evsel, name);
0011     int is_signed;
0012     int ret = 0;
0013
0014     if (field == NULL) {
0015         pr_debug("%s: \"%s\" field not found!\n", evsel->name, name);
0016         return -1;
0017     }
0018
0019     is_signed = !!(field->flags & TEP_FIELD_IS_SIGNED);
0020     if (should_be_signed && !is_signed) {
0021         pr_debug("%s: \"%s\" signedness(%d) is wrong, should be %d\n",
0022              evsel->name, name, is_signed, should_be_signed);
0023         ret = -1;
0024     }
0025
0026     if (field->size != size) {
0027         pr_debug("%s: \"%s\" size (%d) should be %d!\n",
0028              evsel->name, name, field->size, size);
0029         ret = -1;
0030     }
0031
0032     return ret;
0033 }
0034
0035 static int test__perf_evsel__tp_sched_test(struct test_suite *test __maybe_unused,
0036                        int subtest __maybe_unused)
0037 {
0038     struct evsel *evsel = evsel__newtp("sched", "sched_switch");
0039     int ret = 0;
0040
0041     if (IS_ERR(evsel)) {
0042         pr_debug("evsel__newtp failed with %ld\n", PTR_ERR(evsel));
0043         return -1;
0044     }
0045
0046     if (evsel__test_field(evsel, "prev_comm", 16, false))
0047         ret = -1;
0048
0049     if (evsel__test_field(evsel, "prev_pid", 4, true))
0050         ret = -1;
0051
0052     if (evsel__test_field(evsel, "prev_prio", 4, true))
0053         ret = -1;
0054
0055     if (evsel__test_field(evsel, "prev_state", sizeof(long), true))
0056         ret = -1;
0057
0058     if (evsel__test_field(evsel, "next_comm", 16, false))
0059         ret = -1;
0060
0061     if (evsel__test_field(evsel, "next_pid", 4, true))
0062         ret = -1;
0063
0064     if (evsel__test_field(evsel, "next_prio", 4, true))
0065         ret = -1;
0066
0067     evsel__delete(evsel);
0068
0069     evsel = evsel__newtp("sched", "sched_wakeup");
0070
0071     if (IS_ERR(evsel)) {
0072         pr_debug("evsel__newtp failed with %ld\n", PTR_ERR(evsel));
0073         return -1;
0074     }
0075
0076     if (evsel__test_field(evsel, "comm", 16, false))
0077         ret = -1;
0078
0079     if (evsel__test_field(evsel, "pid", 4, true))
0080         ret = -1;
0081
0082     if (evsel__test_field(evsel, "prio", 4, true))
0083         ret = -1;
0084
0085     if (evsel__test_field(evsel, "target_cpu", 4, true))
0086         ret = -1;
0087
0088     evsel__delete(evsel);
0089     return ret;
0090 }
0091
0092 DEFINE_SUITE("Parse sched tracepoints fields", perf_evsel__tp_sched_test);