LXR linux/tools/perf/tests/evsel-tp-sched.c

   1// SPDX-License-Identifier: GPL-2.0
   2#include <linux/err.h>
   3#include <traceevent/event-parse.h>
   4#include "evsel.h"
   5#include "tests.h"
   6#include "debug.h"
   7
   8static int perf_evsel__test_field(struct perf_evsel *evsel, const char *name,
   9                                  int size, bool should_be_signed)
  10{
  11        struct format_field *field = perf_evsel__field(evsel, name);
  12        int is_signed;
  13        int ret = 0;
  14
  15        if (field == NULL) {
  16                pr_debug("%s: \"%s\" field not found!\n", evsel->name, name);
  17                return -1;
  18        }
  19
  20        is_signed = !!(field->flags | FIELD_IS_SIGNED);
  21        if (should_be_signed && !is_signed) {
  22                pr_debug("%s: \"%s\" signedness(%d) is wrong, should be %d\n",
  23                         evsel->name, name, is_signed, should_be_signed);
  24                ret = -1;
  25        }
  26
  27        if (field->size != size) {
  28                pr_debug("%s: \"%s\" size (%d) should be %d!\n",
  29                         evsel->name, name, field->size, size);
  30                ret = -1;
  31        }
  32
  33        return ret;
  34}
  35
  36int test__perf_evsel__tp_sched_test(struct test *test __maybe_unused, int subtest __maybe_unused)
  37{
  38        struct perf_evsel *evsel = perf_evsel__newtp("sched", "sched_switch");
  39        int ret = 0;
  40
  41        if (IS_ERR(evsel)) {
  42                pr_debug("perf_evsel__newtp failed with %ld\n", PTR_ERR(evsel));
  43                return -1;
  44        }
  45
  46        if (perf_evsel__test_field(evsel, "prev_comm", 16, true))
  47                ret = -1;
  48
  49        if (perf_evsel__test_field(evsel, "prev_pid", 4, true))
  50                ret = -1;
  51
  52        if (perf_evsel__test_field(evsel, "prev_prio", 4, true))
  53                ret = -1;
  54
  55        if (perf_evsel__test_field(evsel, "prev_state", sizeof(long), true))
  56                ret = -1;
  57
  58        if (perf_evsel__test_field(evsel, "next_comm", 16, true))
  59                ret = -1;
  60
  61        if (perf_evsel__test_field(evsel, "next_pid", 4, true))
  62                ret = -1;
  63
  64        if (perf_evsel__test_field(evsel, "next_prio", 4, true))
  65                ret = -1;
  66
  67        perf_evsel__delete(evsel);
  68
  69        evsel = perf_evsel__newtp("sched", "sched_wakeup");
  70
  71        if (IS_ERR(evsel)) {
  72                pr_debug("perf_evsel__newtp failed with %ld\n", PTR_ERR(evsel));
  73                return -1;
  74        }
  75
  76        if (perf_evsel__test_field(evsel, "comm", 16, true))
  77                ret = -1;
  78
  79        if (perf_evsel__test_field(evsel, "pid", 4, true))
  80                ret = -1;
  81
  82        if (perf_evsel__test_field(evsel, "prio", 4, true))
  83                ret = -1;
  84
  85        if (perf_evsel__test_field(evsel, "target_cpu", 4, true))
  86                ret = -1;
  87
  88        return ret;
  89}
  90