1 // SPDX-License-Identifier: GPL-2.0
4 #include <linux/string.h>
10 #include "thread_map.h"
14 #include "util/mmap.h"
16 #include <perf/mmap.h>
19 #define O_DIRECTORY 00200000
25 static int test__syscall_openat_tp_fields(struct test_suite *test __maybe_unused,
26 int subtest __maybe_unused)
28 struct record_opts opts = {
38 const char *filename = "/etc/passwd";
39 int flags = O_RDONLY | O_DIRECTORY;
40 struct evlist *evlist = evlist__new();
42 int err = -1, i, nr_events = 0, nr_polls = 0;
43 char sbuf[STRERR_BUFSIZE];
46 pr_debug("%s: evlist__new\n", __func__);
50 evsel = evsel__newtp("syscalls", "sys_enter_openat");
52 pr_debug("%s: evsel__newtp\n", __func__);
53 goto out_delete_evlist;
56 evlist__add(evlist, evsel);
58 err = evlist__create_maps(evlist, &opts.target);
60 pr_debug("%s: evlist__create_maps\n", __func__);
61 goto out_delete_evlist;
64 evsel__config(evsel, &opts, NULL);
66 perf_thread_map__set_pid(evlist->core.threads, 0, getpid());
68 err = evlist__open(evlist);
70 pr_debug("perf_evlist__open: %s\n",
71 str_error_r(errno, sbuf, sizeof(sbuf)));
72 goto out_delete_evlist;
75 err = evlist__mmap(evlist, UINT_MAX);
77 pr_debug("evlist__mmap: %s\n",
78 str_error_r(errno, sbuf, sizeof(sbuf)));
79 goto out_delete_evlist;
82 evlist__enable(evlist);
87 openat(AT_FDCWD, filename, flags);
90 int before = nr_events;
92 for (i = 0; i < evlist->core.nr_mmaps; i++) {
93 union perf_event *event;
96 md = &evlist->mmap[i];
97 if (perf_mmap__read_init(&md->core) < 0)
100 while ((event = perf_mmap__read_event(&md->core)) != NULL) {
101 const u32 type = event->header.type;
103 struct perf_sample sample;
107 if (type != PERF_RECORD_SAMPLE) {
108 perf_mmap__consume(&md->core);
112 err = evsel__parse_sample(evsel, event, &sample);
114 pr_debug("Can't parse sample, err = %d\n", err);
115 goto out_delete_evlist;
118 tp_flags = evsel__intval(evsel, &sample, "flags");
120 if (flags != tp_flags) {
121 pr_debug("%s: Expected flags=%#x, got %#x\n",
122 __func__, flags, tp_flags);
123 goto out_delete_evlist;
128 perf_mmap__read_done(&md->core);
131 if (nr_events == before)
132 evlist__poll(evlist, 10);
134 if (++nr_polls > 5) {
135 pr_debug("%s: no events!\n", __func__);
136 goto out_delete_evlist;
142 evlist__delete(evlist);
147 DEFINE_SUITE("syscalls:sys_enter_openat event fields", syscall_openat_tp_fields);