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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" |
e0fcfb08 | 14 | #include "util/mmap.h" |
a43783ae | 15 | #include <errno.h> |
7728fa0c | 16 | #include <perf/mmap.h> |
dc447eed | 17 | |
ab6526b2 ACM |
18 | #ifndef O_DIRECTORY |
19 | #define O_DIRECTORY 00200000 | |
20 | #endif | |
21 | #ifndef AT_FDCWD | |
22 | #define AT_FDCWD -100 | |
23 | #endif | |
24 | ||
81f17c90 | 25 | int test__syscall_openat_tp_fields(struct test *test __maybe_unused, int subtest __maybe_unused) |
dc447eed | 26 | { |
b4006796 | 27 | struct record_opts opts = { |
dc447eed JO |
28 | .target = { |
29 | .uid = UINT_MAX, | |
30 | .uses_mmap = true, | |
31 | }, | |
509051ea ACM |
32 | .no_buffering = true, |
33 | .freq = 1, | |
34 | .mmap_pages = 256, | |
35 | .raw_samples = true, | |
dc447eed JO |
36 | }; |
37 | const char *filename = "/etc/passwd"; | |
38 | int flags = O_RDONLY | O_DIRECTORY; | |
0f98b11c | 39 | struct evlist *evlist = evlist__new(); |
32dcd021 | 40 | struct evsel *evsel; |
dc447eed | 41 | int err = -1, i, nr_events = 0, nr_polls = 0; |
ba3dfff8 | 42 | char sbuf[STRERR_BUFSIZE]; |
dc447eed JO |
43 | |
44 | if (evlist == NULL) { | |
45 | pr_debug("%s: perf_evlist__new\n", __func__); | |
46 | goto out; | |
47 | } | |
48 | ||
43f322b4 | 49 | evsel = perf_evsel__newtp("syscalls", "sys_enter_openat"); |
8dd2a131 | 50 | if (IS_ERR(evsel)) { |
dc447eed JO |
51 | pr_debug("%s: perf_evsel__newtp\n", __func__); |
52 | goto out_delete_evlist; | |
53 | } | |
54 | ||
a1cf3a75 | 55 | evlist__add(evlist, evsel); |
dc447eed JO |
56 | |
57 | err = perf_evlist__create_maps(evlist, &opts.target); | |
58 | if (err < 0) { | |
59 | pr_debug("%s: perf_evlist__create_maps\n", __func__); | |
60 | goto out_delete_evlist; | |
61 | } | |
62 | ||
6ec17b4e | 63 | evsel__config(evsel, &opts, NULL); |
dc447eed | 64 | |
03617c22 | 65 | perf_thread_map__set_pid(evlist->core.threads, 0, getpid()); |
dc447eed | 66 | |
474ddc4c | 67 | err = evlist__open(evlist); |
dc447eed | 68 | if (err < 0) { |
ba3dfff8 | 69 | pr_debug("perf_evlist__open: %s\n", |
c8b5f2c9 | 70 | str_error_r(errno, sbuf, sizeof(sbuf))); |
03ad9747 | 71 | goto out_delete_evlist; |
dc447eed JO |
72 | } |
73 | ||
9521b5f2 | 74 | err = evlist__mmap(evlist, UINT_MAX); |
dc447eed | 75 | if (err < 0) { |
9521b5f2 | 76 | pr_debug("evlist__mmap: %s\n", |
c8b5f2c9 | 77 | str_error_r(errno, sbuf, sizeof(sbuf))); |
f26e1c7c | 78 | goto out_delete_evlist; |
dc447eed JO |
79 | } |
80 | ||
1c87f165 | 81 | evlist__enable(evlist); |
dc447eed JO |
82 | |
83 | /* | |
84 | * Generate the event: | |
85 | */ | |
43f322b4 | 86 | openat(AT_FDCWD, filename, flags); |
dc447eed JO |
87 | |
88 | while (1) { | |
89 | int before = nr_events; | |
90 | ||
c976ee11 | 91 | for (i = 0; i < evlist->core.nr_mmaps; i++) { |
dc447eed | 92 | union perf_event *event; |
a5830532 | 93 | struct mmap *md; |
dc447eed | 94 | |
1d1b5632 | 95 | md = &evlist->mmap[i]; |
7c4d4182 | 96 | if (perf_mmap__read_init(&md->core) < 0) |
1d1b5632 KL |
97 | continue; |
98 | ||
151ed5d7 | 99 | while ((event = perf_mmap__read_event(&md->core)) != NULL) { |
dc447eed JO |
100 | const u32 type = event->header.type; |
101 | int tp_flags; | |
102 | struct perf_sample sample; | |
103 | ||
104 | ++nr_events; | |
105 | ||
8e50d384 | 106 | if (type != PERF_RECORD_SAMPLE) { |
7728fa0c | 107 | perf_mmap__consume(&md->core); |
dc447eed | 108 | continue; |
8e50d384 | 109 | } |
dc447eed | 110 | |
6b6017a2 | 111 | err = evsel__parse_sample(evsel, event, &sample); |
dc447eed | 112 | if (err) { |
87191383 | 113 | pr_debug("Can't parse sample, err = %d\n", err); |
983874d1 | 114 | goto out_delete_evlist; |
dc447eed JO |
115 | } |
116 | ||
efc0cdc9 | 117 | tp_flags = evsel__intval(evsel, &sample, "flags"); |
dc447eed JO |
118 | |
119 | if (flags != tp_flags) { | |
120 | pr_debug("%s: Expected flags=%#x, got %#x\n", | |
121 | __func__, flags, tp_flags); | |
983874d1 | 122 | goto out_delete_evlist; |
dc447eed JO |
123 | } |
124 | ||
125 | goto out_ok; | |
126 | } | |
32fdc2ca | 127 | perf_mmap__read_done(&md->core); |
dc447eed JO |
128 | } |
129 | ||
130 | if (nr_events == before) | |
80ab2987 | 131 | evlist__poll(evlist, 10); |
dc447eed JO |
132 | |
133 | if (++nr_polls > 5) { | |
134 | pr_debug("%s: no events!\n", __func__); | |
983874d1 | 135 | goto out_delete_evlist; |
dc447eed JO |
136 | } |
137 | } | |
138 | out_ok: | |
139 | err = 0; | |
dc447eed | 140 | out_delete_evlist: |
c12995a5 | 141 | evlist__delete(evlist); |
dc447eed JO |
142 | out: |
143 | return err; | |
144 | } |