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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
8dd2a131 | 2 | #include <linux/err.h> |
dc447eed JO |
3 | #include "perf.h" |
4 | #include "evlist.h" | |
5 | #include "evsel.h" | |
6 | #include "thread_map.h" | |
7 | #include "tests.h" | |
84f5d36f | 8 | #include "debug.h" |
a43783ae | 9 | #include <errno.h> |
dc447eed | 10 | |
ab6526b2 ACM |
11 | #ifndef O_DIRECTORY |
12 | #define O_DIRECTORY 00200000 | |
13 | #endif | |
14 | #ifndef AT_FDCWD | |
15 | #define AT_FDCWD -100 | |
16 | #endif | |
17 | ||
81f17c90 | 18 | int test__syscall_openat_tp_fields(struct test *test __maybe_unused, int subtest __maybe_unused) |
dc447eed | 19 | { |
b4006796 | 20 | struct record_opts opts = { |
dc447eed JO |
21 | .target = { |
22 | .uid = UINT_MAX, | |
23 | .uses_mmap = true, | |
24 | }, | |
509051ea ACM |
25 | .no_buffering = true, |
26 | .freq = 1, | |
27 | .mmap_pages = 256, | |
28 | .raw_samples = true, | |
dc447eed JO |
29 | }; |
30 | const char *filename = "/etc/passwd"; | |
31 | int flags = O_RDONLY | O_DIRECTORY; | |
334fe7a3 | 32 | struct perf_evlist *evlist = perf_evlist__new(); |
dc447eed JO |
33 | struct perf_evsel *evsel; |
34 | int err = -1, i, nr_events = 0, nr_polls = 0; | |
ba3dfff8 | 35 | char sbuf[STRERR_BUFSIZE]; |
dc447eed JO |
36 | |
37 | if (evlist == NULL) { | |
38 | pr_debug("%s: perf_evlist__new\n", __func__); | |
39 | goto out; | |
40 | } | |
41 | ||
43f322b4 | 42 | evsel = perf_evsel__newtp("syscalls", "sys_enter_openat"); |
8dd2a131 | 43 | if (IS_ERR(evsel)) { |
dc447eed JO |
44 | pr_debug("%s: perf_evsel__newtp\n", __func__); |
45 | goto out_delete_evlist; | |
46 | } | |
47 | ||
48 | perf_evlist__add(evlist, evsel); | |
49 | ||
50 | err = perf_evlist__create_maps(evlist, &opts.target); | |
51 | if (err < 0) { | |
52 | pr_debug("%s: perf_evlist__create_maps\n", __func__); | |
53 | goto out_delete_evlist; | |
54 | } | |
55 | ||
e68ae9cf | 56 | perf_evsel__config(evsel, &opts, NULL); |
dc447eed | 57 | |
e13798c7 | 58 | thread_map__set_pid(evlist->threads, 0, getpid()); |
dc447eed JO |
59 | |
60 | err = perf_evlist__open(evlist); | |
61 | if (err < 0) { | |
ba3dfff8 | 62 | pr_debug("perf_evlist__open: %s\n", |
c8b5f2c9 | 63 | str_error_r(errno, sbuf, sizeof(sbuf))); |
03ad9747 | 64 | goto out_delete_evlist; |
dc447eed JO |
65 | } |
66 | ||
67 | err = perf_evlist__mmap(evlist, UINT_MAX, false); | |
68 | if (err < 0) { | |
ba3dfff8 | 69 | pr_debug("perf_evlist__mmap: %s\n", |
c8b5f2c9 | 70 | str_error_r(errno, sbuf, sizeof(sbuf))); |
f26e1c7c | 71 | goto out_delete_evlist; |
dc447eed JO |
72 | } |
73 | ||
74 | perf_evlist__enable(evlist); | |
75 | ||
76 | /* | |
77 | * Generate the event: | |
78 | */ | |
43f322b4 | 79 | openat(AT_FDCWD, filename, flags); |
dc447eed JO |
80 | |
81 | while (1) { | |
82 | int before = nr_events; | |
83 | ||
84 | for (i = 0; i < evlist->nr_mmaps; i++) { | |
85 | union perf_event *event; | |
86 | ||
87 | while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) { | |
88 | const u32 type = event->header.type; | |
89 | int tp_flags; | |
90 | struct perf_sample sample; | |
91 | ||
92 | ++nr_events; | |
93 | ||
8e50d384 ZZ |
94 | if (type != PERF_RECORD_SAMPLE) { |
95 | perf_evlist__mmap_consume(evlist, i); | |
dc447eed | 96 | continue; |
8e50d384 | 97 | } |
dc447eed JO |
98 | |
99 | err = perf_evsel__parse_sample(evsel, event, &sample); | |
100 | if (err) { | |
87191383 | 101 | pr_debug("Can't parse sample, err = %d\n", err); |
983874d1 | 102 | goto out_delete_evlist; |
dc447eed JO |
103 | } |
104 | ||
105 | tp_flags = perf_evsel__intval(evsel, &sample, "flags"); | |
106 | ||
107 | if (flags != tp_flags) { | |
108 | pr_debug("%s: Expected flags=%#x, got %#x\n", | |
109 | __func__, flags, tp_flags); | |
983874d1 | 110 | goto out_delete_evlist; |
dc447eed JO |
111 | } |
112 | ||
113 | goto out_ok; | |
114 | } | |
115 | } | |
116 | ||
117 | if (nr_events == before) | |
f66a889d | 118 | perf_evlist__poll(evlist, 10); |
dc447eed JO |
119 | |
120 | if (++nr_polls > 5) { | |
121 | pr_debug("%s: no events!\n", __func__); | |
983874d1 | 122 | goto out_delete_evlist; |
dc447eed JO |
123 | } |
124 | } | |
125 | out_ok: | |
126 | err = 0; | |
dc447eed JO |
127 | out_delete_evlist: |
128 | perf_evlist__delete(evlist); | |
129 | out: | |
130 | return err; | |
131 | } |