Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
aeb00b1a | 2 | #include <stdbool.h> |
8dd2a131 | 3 | #include <linux/err.h> |
8520a98d | 4 | #include <linux/string.h> |
bafae98e ACM |
5 | #include <sys/types.h> |
6 | #include <sys/stat.h> | |
7 | #include <fcntl.h> | |
dc447eed JO |
8 | #include "evlist.h" |
9 | #include "evsel.h" | |
10 | #include "thread_map.h" | |
aeb00b1a | 11 | #include "record.h" |
dc447eed | 12 | #include "tests.h" |
84f5d36f | 13 | #include "debug.h" |
a43783ae | 14 | #include <errno.h> |
dc447eed | 15 | |
ab6526b2 ACM |
16 | #ifndef O_DIRECTORY |
17 | #define O_DIRECTORY 00200000 | |
18 | #endif | |
19 | #ifndef AT_FDCWD | |
20 | #define AT_FDCWD -100 | |
21 | #endif | |
22 | ||
81f17c90 | 23 | int test__syscall_openat_tp_fields(struct test *test __maybe_unused, int subtest __maybe_unused) |
dc447eed | 24 | { |
b4006796 | 25 | struct record_opts opts = { |
dc447eed JO |
26 | .target = { |
27 | .uid = UINT_MAX, | |
28 | .uses_mmap = true, | |
29 | }, | |
509051ea ACM |
30 | .no_buffering = true, |
31 | .freq = 1, | |
32 | .mmap_pages = 256, | |
33 | .raw_samples = true, | |
dc447eed JO |
34 | }; |
35 | const char *filename = "/etc/passwd"; | |
36 | int flags = O_RDONLY | O_DIRECTORY; | |
0f98b11c | 37 | struct evlist *evlist = evlist__new(); |
32dcd021 | 38 | struct evsel *evsel; |
dc447eed | 39 | int err = -1, i, nr_events = 0, nr_polls = 0; |
ba3dfff8 | 40 | char sbuf[STRERR_BUFSIZE]; |
dc447eed JO |
41 | |
42 | if (evlist == NULL) { | |
43 | pr_debug("%s: perf_evlist__new\n", __func__); | |
44 | goto out; | |
45 | } | |
46 | ||
43f322b4 | 47 | evsel = perf_evsel__newtp("syscalls", "sys_enter_openat"); |
8dd2a131 | 48 | if (IS_ERR(evsel)) { |
dc447eed JO |
49 | pr_debug("%s: perf_evsel__newtp\n", __func__); |
50 | goto out_delete_evlist; | |
51 | } | |
52 | ||
a1cf3a75 | 53 | evlist__add(evlist, evsel); |
dc447eed JO |
54 | |
55 | err = perf_evlist__create_maps(evlist, &opts.target); | |
56 | if (err < 0) { | |
57 | pr_debug("%s: perf_evlist__create_maps\n", __func__); | |
58 | goto out_delete_evlist; | |
59 | } | |
60 | ||
e68ae9cf | 61 | perf_evsel__config(evsel, &opts, NULL); |
dc447eed | 62 | |
03617c22 | 63 | perf_thread_map__set_pid(evlist->core.threads, 0, getpid()); |
dc447eed | 64 | |
474ddc4c | 65 | err = evlist__open(evlist); |
dc447eed | 66 | if (err < 0) { |
ba3dfff8 | 67 | pr_debug("perf_evlist__open: %s\n", |
c8b5f2c9 | 68 | str_error_r(errno, sbuf, sizeof(sbuf))); |
03ad9747 | 69 | goto out_delete_evlist; |
dc447eed JO |
70 | } |
71 | ||
f74b9d3a | 72 | err = perf_evlist__mmap(evlist, UINT_MAX); |
dc447eed | 73 | if (err < 0) { |
ba3dfff8 | 74 | pr_debug("perf_evlist__mmap: %s\n", |
c8b5f2c9 | 75 | str_error_r(errno, sbuf, sizeof(sbuf))); |
f26e1c7c | 76 | goto out_delete_evlist; |
dc447eed JO |
77 | } |
78 | ||
1c87f165 | 79 | evlist__enable(evlist); |
dc447eed JO |
80 | |
81 | /* | |
82 | * Generate the event: | |
83 | */ | |
43f322b4 | 84 | openat(AT_FDCWD, filename, flags); |
dc447eed JO |
85 | |
86 | while (1) { | |
87 | int before = nr_events; | |
88 | ||
89 | for (i = 0; i < evlist->nr_mmaps; i++) { | |
90 | union perf_event *event; | |
1d1b5632 | 91 | struct perf_mmap *md; |
dc447eed | 92 | |
1d1b5632 | 93 | md = &evlist->mmap[i]; |
b9bae2c8 | 94 | if (perf_mmap__read_init(md) < 0) |
1d1b5632 KL |
95 | continue; |
96 | ||
0019dc87 | 97 | while ((event = perf_mmap__read_event(md)) != NULL) { |
dc447eed JO |
98 | const u32 type = event->header.type; |
99 | int tp_flags; | |
100 | struct perf_sample sample; | |
101 | ||
102 | ++nr_events; | |
103 | ||
8e50d384 | 104 | if (type != PERF_RECORD_SAMPLE) { |
d6ace3df | 105 | perf_mmap__consume(md); |
dc447eed | 106 | continue; |
8e50d384 | 107 | } |
dc447eed JO |
108 | |
109 | err = perf_evsel__parse_sample(evsel, event, &sample); | |
110 | if (err) { | |
87191383 | 111 | pr_debug("Can't parse sample, err = %d\n", err); |
983874d1 | 112 | goto out_delete_evlist; |
dc447eed JO |
113 | } |
114 | ||
115 | tp_flags = perf_evsel__intval(evsel, &sample, "flags"); | |
116 | ||
117 | if (flags != tp_flags) { | |
118 | pr_debug("%s: Expected flags=%#x, got %#x\n", | |
119 | __func__, flags, tp_flags); | |
983874d1 | 120 | goto out_delete_evlist; |
dc447eed JO |
121 | } |
122 | ||
123 | goto out_ok; | |
124 | } | |
1d1b5632 | 125 | perf_mmap__read_done(md); |
dc447eed JO |
126 | } |
127 | ||
128 | if (nr_events == before) | |
f66a889d | 129 | perf_evlist__poll(evlist, 10); |
dc447eed JO |
130 | |
131 | if (++nr_polls > 5) { | |
132 | pr_debug("%s: no events!\n", __func__); | |
983874d1 | 133 | goto out_delete_evlist; |
dc447eed JO |
134 | } |
135 | } | |
136 | out_ok: | |
137 | err = 0; | |
dc447eed | 138 | out_delete_evlist: |
c12995a5 | 139 | evlist__delete(evlist); |
dc447eed JO |
140 | out: |
141 | return err; | |
142 | } |