linux/tools/perf/tests/pmu.c
Arnaldo Carvalho de Melo 81f17c90f1 perf test: Add 'struct test *' to the test functions
This way we'll be able to pass more test specific parameters without
having to change this function signature.

Will be used by the upcoming 'shell tests', shell scripts that will
call perf tools and check if they work as expected, comparing its
effects on the system (think 'perf probe foo') the output produced, etc.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-wq250w7j1opbzyiynozuajbl@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-08-11 10:42:53 -03:00

177 lines
3.8 KiB
C

#include "parse-events.h"
#include "pmu.h"
#include "util.h"
#include "tests.h"
#include <errno.h>
#include <linux/kernel.h>
/* Simulated format definitions. */
static struct test_format {
const char *name;
const char *value;
} test_formats[] = {
{ "krava01", "config:0-1,62-63\n", },
{ "krava02", "config:10-17\n", },
{ "krava03", "config:5\n", },
{ "krava11", "config1:0,2,4,6,8,20-28\n", },
{ "krava12", "config1:63\n", },
{ "krava13", "config1:45-47\n", },
{ "krava21", "config2:0-3,10-13,20-23,30-33,40-43,50-53,60-63\n", },
{ "krava22", "config2:8,18,48,58\n", },
{ "krava23", "config2:28-29,38\n", },
};
/* Simulated users input. */
static struct parse_events_term test_terms[] = {
{
.config = (char *) "krava01",
.val.num = 15,
.type_val = PARSE_EVENTS__TERM_TYPE_NUM,
.type_term = PARSE_EVENTS__TERM_TYPE_USER,
},
{
.config = (char *) "krava02",
.val.num = 170,
.type_val = PARSE_EVENTS__TERM_TYPE_NUM,
.type_term = PARSE_EVENTS__TERM_TYPE_USER,
},
{
.config = (char *) "krava03",
.val.num = 1,
.type_val = PARSE_EVENTS__TERM_TYPE_NUM,
.type_term = PARSE_EVENTS__TERM_TYPE_USER,
},
{
.config = (char *) "krava11",
.val.num = 27,
.type_val = PARSE_EVENTS__TERM_TYPE_NUM,
.type_term = PARSE_EVENTS__TERM_TYPE_USER,
},
{
.config = (char *) "krava12",
.val.num = 1,
.type_val = PARSE_EVENTS__TERM_TYPE_NUM,
.type_term = PARSE_EVENTS__TERM_TYPE_USER,
},
{
.config = (char *) "krava13",
.val.num = 2,
.type_val = PARSE_EVENTS__TERM_TYPE_NUM,
.type_term = PARSE_EVENTS__TERM_TYPE_USER,
},
{
.config = (char *) "krava21",
.val.num = 119,
.type_val = PARSE_EVENTS__TERM_TYPE_NUM,
.type_term = PARSE_EVENTS__TERM_TYPE_USER,
},
{
.config = (char *) "krava22",
.val.num = 11,
.type_val = PARSE_EVENTS__TERM_TYPE_NUM,
.type_term = PARSE_EVENTS__TERM_TYPE_USER,
},
{
.config = (char *) "krava23",
.val.num = 2,
.type_val = PARSE_EVENTS__TERM_TYPE_NUM,
.type_term = PARSE_EVENTS__TERM_TYPE_USER,
},
};
/*
* Prepare format directory data, exported by kernel
* at /sys/bus/event_source/devices/<dev>/format.
*/
static char *test_format_dir_get(void)
{
static char dir[PATH_MAX];
unsigned int i;
snprintf(dir, PATH_MAX, "/tmp/perf-pmu-test-format-XXXXXX");
if (!mkdtemp(dir))
return NULL;
for (i = 0; i < ARRAY_SIZE(test_formats); i++) {
static char name[PATH_MAX];
struct test_format *format = &test_formats[i];
FILE *file;
snprintf(name, PATH_MAX, "%s/%s", dir, format->name);
file = fopen(name, "w");
if (!file)
return NULL;
if (1 != fwrite(format->value, strlen(format->value), 1, file))
break;
fclose(file);
}
return dir;
}
/* Cleanup format directory. */
static int test_format_dir_put(char *dir)
{
char buf[PATH_MAX];
snprintf(buf, PATH_MAX, "rm -f %s/*\n", dir);
if (system(buf))
return -1;
snprintf(buf, PATH_MAX, "rmdir %s\n", dir);
return system(buf);
}
static struct list_head *test_terms_list(void)
{
static LIST_HEAD(terms);
unsigned int i;
for (i = 0; i < ARRAY_SIZE(test_terms); i++)
list_add_tail(&test_terms[i].list, &terms);
return &terms;
}
int test__pmu(struct test *test __maybe_unused, int subtest __maybe_unused)
{
char *format = test_format_dir_get();
LIST_HEAD(formats);
struct list_head *terms = test_terms_list();
int ret;
if (!format)
return -EINVAL;
do {
struct perf_event_attr attr;
memset(&attr, 0, sizeof(attr));
ret = perf_pmu__format_parse(format, &formats);
if (ret)
break;
ret = perf_pmu__config_terms(&formats, &attr, terms,
false, NULL);
if (ret)
break;
ret = -EINVAL;
if (attr.config != 0xc00000000002a823)
break;
if (attr.config1 != 0x8000400000000145)
break;
if (attr.config2 != 0x0400000020041d07)
break;
ret = 0;
} while (0);
test_format_dir_put(format);
return ret;
}