^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #include <stdbool.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <sys/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <sys/stat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <fcntl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include "evlist.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include "evsel.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "thread_map.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "record.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include "tests.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "debug.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "util/mmap.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <perf/mmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #ifndef O_DIRECTORY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define O_DIRECTORY 00200000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #ifndef AT_FDCWD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define AT_FDCWD -100
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) int test__syscall_openat_tp_fields(struct test *test __maybe_unused, int subtest __maybe_unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) struct record_opts opts = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) .target = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) .uid = UINT_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) .uses_mmap = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) .no_buffering = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) .freq = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) .mmap_pages = 256,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) .raw_samples = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) const char *filename = "/etc/passwd";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) int flags = O_RDONLY | O_DIRECTORY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct evlist *evlist = evlist__new();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct evsel *evsel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) int err = -1, i, nr_events = 0, nr_polls = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) char sbuf[STRERR_BUFSIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) if (evlist == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) pr_debug("%s: perf_evlist__new\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) evsel = evsel__newtp("syscalls", "sys_enter_openat");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) if (IS_ERR(evsel)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) pr_debug("%s: evsel__newtp\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) goto out_delete_evlist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) evlist__add(evlist, evsel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) err = perf_evlist__create_maps(evlist, &opts.target);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) pr_debug("%s: perf_evlist__create_maps\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) goto out_delete_evlist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) evsel__config(evsel, &opts, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) perf_thread_map__set_pid(evlist->core.threads, 0, getpid());
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) err = evlist__open(evlist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) pr_debug("perf_evlist__open: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) str_error_r(errno, sbuf, sizeof(sbuf)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) goto out_delete_evlist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) err = evlist__mmap(evlist, UINT_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) pr_debug("evlist__mmap: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) str_error_r(errno, sbuf, sizeof(sbuf)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) goto out_delete_evlist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) evlist__enable(evlist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * Generate the event:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) openat(AT_FDCWD, filename, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) while (1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) int before = nr_events;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) for (i = 0; i < evlist->core.nr_mmaps; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) union perf_event *event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct mmap *md;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) md = &evlist->mmap[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) if (perf_mmap__read_init(&md->core) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) while ((event = perf_mmap__read_event(&md->core)) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) const u32 type = event->header.type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) int tp_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) struct perf_sample sample;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) ++nr_events;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) if (type != PERF_RECORD_SAMPLE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) perf_mmap__consume(&md->core);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) err = evsel__parse_sample(evsel, event, &sample);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) pr_debug("Can't parse sample, err = %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) goto out_delete_evlist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) tp_flags = evsel__intval(evsel, &sample, "flags");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) if (flags != tp_flags) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) pr_debug("%s: Expected flags=%#x, got %#x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) __func__, flags, tp_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) goto out_delete_evlist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) goto out_ok;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) perf_mmap__read_done(&md->core);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) if (nr_events == before)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) evlist__poll(evlist, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) if (++nr_polls > 5) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) pr_debug("%s: no events!\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) goto out_delete_evlist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) out_ok:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) out_delete_evlist:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) evlist__delete(evlist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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