1#include "perf.h"
  2#include "evlist.h"
  3#include "evsel.h"
  4#include "thread_map.h"
  5#include "tests.h"
  6
  7int test__syscall_open_tp_fields(void)
  8{
  9	struct record_opts opts = {
 10		.target = {
 11			.uid = UINT_MAX,
 12			.uses_mmap = true,
 13		},
 14		.no_buffering = true,
 15		.freq	      = 1,
 16		.mmap_pages   = 256,
 17		.raw_samples  = true,
 18	};
 19	const char *filename = "/etc/passwd";
 20	int flags = O_RDONLY | O_DIRECTORY;
 21	struct perf_evlist *evlist = perf_evlist__new();
 22	struct perf_evsel *evsel;
 23	int err = -1, i, nr_events = 0, nr_polls = 0;
 24
 25	if (evlist == NULL) {
 26		pr_debug("%s: perf_evlist__new\n", __func__);
 27		goto out;
 28	}
 29
 30	evsel = perf_evsel__newtp("syscalls", "sys_enter_open");
 31	if (evsel == NULL) {
 32		pr_debug("%s: perf_evsel__newtp\n", __func__);
 33		goto out_delete_evlist;
 34	}
 35
 36	perf_evlist__add(evlist, evsel);
 37
 38	err = perf_evlist__create_maps(evlist, &opts.target);
 39	if (err < 0) {
 40		pr_debug("%s: perf_evlist__create_maps\n", __func__);
 41		goto out_delete_evlist;
 42	}
 43
 44	perf_evsel__config(evsel, &opts);
 45
 46	evlist->threads->map[0] = getpid();
 47
 48	err = perf_evlist__open(evlist);
 49	if (err < 0) {
 50		pr_debug("perf_evlist__open: %s\n", strerror(errno));
 51		goto out_delete_evlist;
 52	}
 53
 54	err = perf_evlist__mmap(evlist, UINT_MAX, false);
 55	if (err < 0) {
 56		pr_debug("perf_evlist__mmap: %s\n", strerror(errno));
 57		goto out_delete_evlist;
 58	}
 59
 60	perf_evlist__enable(evlist);
 61
 62	/*
 63	 * Generate the event:
 64	 */
 65	open(filename, flags);
 66
 67	while (1) {
 68		int before = nr_events;
 69
 70		for (i = 0; i < evlist->nr_mmaps; i++) {
 71			union perf_event *event;
 72
 73			while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) {
 74				const u32 type = event->header.type;
 75				int tp_flags;
 76				struct perf_sample sample;
 77
 78				++nr_events;
 79
 80				if (type != PERF_RECORD_SAMPLE) {
 81					perf_evlist__mmap_consume(evlist, i);
 82					continue;
 83				}
 84
 85				err = perf_evsel__parse_sample(evsel, event, &sample);
 86				if (err) {
 87					pr_err("Can't parse sample, err = %d\n", err);
 88					goto out_delete_evlist;
 89				}
 90
 91				tp_flags = perf_evsel__intval(evsel, &sample, "flags");
 92
 93				if (flags != tp_flags) {
 94					pr_debug("%s: Expected flags=%#x, got %#x\n",
 95						 __func__, flags, tp_flags);
 96					goto out_delete_evlist;
 97				}
 98
 99				goto out_ok;
100			}
101		}
102
103		if (nr_events == before)
104			poll(evlist->pollfd, evlist->nr_fds, 10);
105
106		if (++nr_polls > 5) {
107			pr_debug("%s: no events!\n", __func__);
108			goto out_delete_evlist;
109		}
110	}
111out_ok:
112	err = 0;
113out_delete_evlist:
114	perf_evlist__delete(evlist);
115out:
116	return err;
117}