ef503831d8
Most uses of the evsel constructor are followed by a call to perf_evlist__add with an idex of evlist->nr_entries, so make rename the current constructor to perf_evsel__new_idx and remove the need for passing the constructor for the common case. We still need the new_idx variant because the way groups are handled, with evsel->nr_members holding the number of entries in an evlist, partitioning the evlist into sublists inside a single linked list. This asks for a clarifying refactoring, but for now simplify the non parser cases, so that tool writers don't have to bother with evsel idx setting. Cc: Adrian Hunter <adrian.hunter@intel.com> 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: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zy9tskx6jqm2rmw7468zze2a@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
123 lines
2.5 KiB
C
123 lines
2.5 KiB
C
#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();
|
|
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");
|
|
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);
|
|
|
|
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_maps;
|
|
}
|
|
|
|
err = perf_evlist__mmap(evlist, UINT_MAX, false);
|
|
if (err < 0) {
|
|
pr_debug("perf_evlist__mmap: %s\n", strerror(errno));
|
|
goto out_close_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) {
|
|
perf_evlist__mmap_consume(evlist, i);
|
|
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_close_evlist:
|
|
perf_evlist__close(evlist);
|
|
out_delete_maps:
|
|
perf_evlist__delete_maps(evlist);
|
|
out_delete_evlist:
|
|
perf_evlist__delete(evlist);
|
|
out:
|
|
return err;
|
|
}
|