forked from torvalds/linux
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
perf tests: Move test__syscall_open_tp_fields into separate object
Separating test__syscall_open_tp_fields test from the builtin-test into open-syscall-tp-fields object. Signed-off-by: Jiri Olsa <[email protected]> Cc: Corey Ashford <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
- Loading branch information
Showing
4 changed files
with
119 additions
and
112 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,117 @@ | ||
#include "perf.h" | ||
#include "evlist.h" | ||
#include "evsel.h" | ||
#include "thread_map.h" | ||
#include "tests.h" | ||
|
||
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; | ||
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters