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perf test: Add test for the sched tracepoint format fields

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So that we make sure the routines that do event format parsing are
working on at least two well know scheduler tracepoints.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-g3rm9b3wtim4djx3z8dkftrj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2012-09-18 11:56:28 -03:00
parent efd2b924d3
commit 6a6cd11d4e
1 changed files with 86 additions and 0 deletions
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86
tools/perf/builtin-test.c
View file

@ -14,6 +14,7 @@
#include "util/symbol.h" #include "util/symbol.h"
#include "util/thread_map.h" #include "util/thread_map.h"
#include "util/pmu.h" #include "util/pmu.h"
#include "event-parse.h"
#include "../../include/linux/hw_breakpoint.h" #include "../../include/linux/hw_breakpoint.h"
#include <sys/mman.h> #include <sys/mman.h>
@ -1207,6 +1208,87 @@ static int perf_evsel__roundtrip_name_test(void)
return ret; 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 0;
}
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 0;
}
static struct test { static struct test {
const char *desc; const char *desc;
int (*func)(void); int (*func)(void);
@ -1253,6 +1335,10 @@ static struct test {
.desc = "roundtrip evsel->name check", .desc = "roundtrip evsel->name check",
.func = perf_evsel__roundtrip_name_test, .func = perf_evsel__roundtrip_name_test,
}, },
{
.desc = "Check parsing of sched tracepoints fields",
.func = perf_evsel__tp_sched_test,
},
{ {
.func = NULL, .func = NULL,
}, },