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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
8dd2a131 | 2 | #include <linux/err.h> |
bafae98e ACM |
3 | #include <sys/types.h> |
4 | #include <sys/stat.h> | |
5 | #include <fcntl.h> | |
dc447eed JO |
6 | #include "perf.h" |
7 | #include "evlist.h" | |
8 | #include "evsel.h" | |
9 | #include "thread_map.h" | |
10 | #include "tests.h" | |
84f5d36f | 11 | #include "debug.h" |
a43783ae | 12 | #include <errno.h> |
dc447eed | 13 | |
ab6526b2 ACM |
14 | #ifndef O_DIRECTORY |
15 | #define O_DIRECTORY 00200000 | |
16 | #endif | |
17 | #ifndef AT_FDCWD | |
18 | #define AT_FDCWD -100 | |
19 | #endif | |
20 | ||
81f17c90 | 21 | int test__syscall_openat_tp_fields(struct test *test __maybe_unused, int subtest __maybe_unused) |
dc447eed | 22 | { |
b4006796 | 23 | struct record_opts opts = { |
dc447eed JO |
24 | .target = { |
25 | .uid = UINT_MAX, | |
26 | .uses_mmap = true, | |
27 | }, | |
509051ea ACM |
28 | .no_buffering = true, |
29 | .freq = 1, | |
30 | .mmap_pages = 256, | |
31 | .raw_samples = true, | |
dc447eed JO |
32 | }; |
33 | const char *filename = "/etc/passwd"; | |
34 | int flags = O_RDONLY | O_DIRECTORY; | |
63503dba | 35 | struct evlist *evlist = perf_evlist__new(); |
32dcd021 | 36 | struct evsel *evsel; |
dc447eed | 37 | int err = -1, i, nr_events = 0, nr_polls = 0; |
ba3dfff8 | 38 | char sbuf[STRERR_BUFSIZE]; |
dc447eed JO |
39 | |
40 | if (evlist == NULL) { | |
41 | pr_debug("%s: perf_evlist__new\n", __func__); | |
42 | goto out; | |
43 | } | |
44 | ||
43f322b4 | 45 | evsel = perf_evsel__newtp("syscalls", "sys_enter_openat"); |
8dd2a131 | 46 | if (IS_ERR(evsel)) { |
dc447eed JO |
47 | pr_debug("%s: perf_evsel__newtp\n", __func__); |
48 | goto out_delete_evlist; | |
49 | } | |
50 | ||
51 | perf_evlist__add(evlist, evsel); | |
52 | ||
53 | err = perf_evlist__create_maps(evlist, &opts.target); | |
54 | if (err < 0) { | |
55 | pr_debug("%s: perf_evlist__create_maps\n", __func__); | |
56 | goto out_delete_evlist; | |
57 | } | |
58 | ||
e68ae9cf | 59 | perf_evsel__config(evsel, &opts, NULL); |
dc447eed | 60 | |
e13798c7 | 61 | thread_map__set_pid(evlist->threads, 0, getpid()); |
dc447eed JO |
62 | |
63 | err = perf_evlist__open(evlist); | |
64 | if (err < 0) { | |
ba3dfff8 | 65 | pr_debug("perf_evlist__open: %s\n", |
c8b5f2c9 | 66 | str_error_r(errno, sbuf, sizeof(sbuf))); |
03ad9747 | 67 | goto out_delete_evlist; |
dc447eed JO |
68 | } |
69 | ||
f74b9d3a | 70 | err = perf_evlist__mmap(evlist, UINT_MAX); |
dc447eed | 71 | if (err < 0) { |
ba3dfff8 | 72 | pr_debug("perf_evlist__mmap: %s\n", |
c8b5f2c9 | 73 | str_error_r(errno, sbuf, sizeof(sbuf))); |
f26e1c7c | 74 | goto out_delete_evlist; |
dc447eed JO |
75 | } |
76 | ||
77 | perf_evlist__enable(evlist); | |
78 | ||
79 | /* | |
80 | * Generate the event: | |
81 | */ | |
43f322b4 | 82 | openat(AT_FDCWD, filename, flags); |
dc447eed JO |
83 | |
84 | while (1) { | |
85 | int before = nr_events; | |
86 | ||
87 | for (i = 0; i < evlist->nr_mmaps; i++) { | |
88 | union perf_event *event; | |
1d1b5632 | 89 | struct perf_mmap *md; |
dc447eed | 90 | |
1d1b5632 | 91 | md = &evlist->mmap[i]; |
b9bae2c8 | 92 | if (perf_mmap__read_init(md) < 0) |
1d1b5632 KL |
93 | continue; |
94 | ||
0019dc87 | 95 | while ((event = perf_mmap__read_event(md)) != NULL) { |
dc447eed JO |
96 | const u32 type = event->header.type; |
97 | int tp_flags; | |
98 | struct perf_sample sample; | |
99 | ||
100 | ++nr_events; | |
101 | ||
8e50d384 | 102 | if (type != PERF_RECORD_SAMPLE) { |
d6ace3df | 103 | perf_mmap__consume(md); |
dc447eed | 104 | continue; |
8e50d384 | 105 | } |
dc447eed JO |
106 | |
107 | err = perf_evsel__parse_sample(evsel, event, &sample); | |
108 | if (err) { | |
87191383 | 109 | pr_debug("Can't parse sample, err = %d\n", err); |
983874d1 | 110 | goto out_delete_evlist; |
dc447eed JO |
111 | } |
112 | ||
113 | tp_flags = perf_evsel__intval(evsel, &sample, "flags"); | |
114 | ||
115 | if (flags != tp_flags) { | |
116 | pr_debug("%s: Expected flags=%#x, got %#x\n", | |
117 | __func__, flags, tp_flags); | |
983874d1 | 118 | goto out_delete_evlist; |
dc447eed JO |
119 | } |
120 | ||
121 | goto out_ok; | |
122 | } | |
1d1b5632 | 123 | perf_mmap__read_done(md); |
dc447eed JO |
124 | } |
125 | ||
126 | if (nr_events == before) | |
f66a889d | 127 | perf_evlist__poll(evlist, 10); |
dc447eed JO |
128 | |
129 | if (++nr_polls > 5) { | |
130 | pr_debug("%s: no events!\n", __func__); | |
983874d1 | 131 | goto out_delete_evlist; |
dc447eed JO |
132 | } |
133 | } | |
134 | out_ok: | |
135 | err = 0; | |
dc447eed JO |
136 | out_delete_evlist: |
137 | perf_evlist__delete(evlist); | |
138 | out: | |
139 | return err; | |
140 | } |