e0fcfb086f
As this isn't used at all in mmap.h but in evlist.h, so to cut down the header dependency tree, move it to where it is used. Also add mmap.h to the places using it but previously getting it indirectly via evlist.h. Add missing pthread.h to evlist.h, as it has a pthread_t struct member and was getting the header via mmap.h. Noticed while processing a Jiri's libperf batch touching mmap.h, where almost everything gets rebuilt because evlist.h is so popular, so cut down't this rebuild the world party. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Song Liu <songliubraving@fb.com> Link: https://lkml.kernel.org/n/tip-he0uljeftl0xfveh3d6vtode@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
144 lines
3.0 KiB
C
144 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <stdbool.h>
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#include <linux/err.h>
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#include <linux/string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include "evlist.h"
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#include "evsel.h"
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#include "thread_map.h"
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#include "record.h"
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#include "tests.h"
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#include "debug.h"
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#include "util/mmap.h"
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#include <errno.h>
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#ifndef O_DIRECTORY
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#define O_DIRECTORY 00200000
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#endif
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#ifndef AT_FDCWD
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#define AT_FDCWD -100
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#endif
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int test__syscall_openat_tp_fields(struct test *test __maybe_unused, int subtest __maybe_unused)
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{
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struct record_opts opts = {
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.target = {
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.uid = UINT_MAX,
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.uses_mmap = true,
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},
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.no_buffering = true,
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.freq = 1,
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.mmap_pages = 256,
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.raw_samples = true,
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};
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const char *filename = "/etc/passwd";
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int flags = O_RDONLY | O_DIRECTORY;
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struct evlist *evlist = evlist__new();
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struct evsel *evsel;
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int err = -1, i, nr_events = 0, nr_polls = 0;
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char sbuf[STRERR_BUFSIZE];
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if (evlist == NULL) {
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pr_debug("%s: perf_evlist__new\n", __func__);
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goto out;
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}
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evsel = perf_evsel__newtp("syscalls", "sys_enter_openat");
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if (IS_ERR(evsel)) {
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pr_debug("%s: perf_evsel__newtp\n", __func__);
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goto out_delete_evlist;
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}
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evlist__add(evlist, evsel);
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err = perf_evlist__create_maps(evlist, &opts.target);
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if (err < 0) {
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pr_debug("%s: perf_evlist__create_maps\n", __func__);
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goto out_delete_evlist;
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}
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perf_evsel__config(evsel, &opts, NULL);
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perf_thread_map__set_pid(evlist->core.threads, 0, getpid());
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err = evlist__open(evlist);
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if (err < 0) {
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pr_debug("perf_evlist__open: %s\n",
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str_error_r(errno, sbuf, sizeof(sbuf)));
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goto out_delete_evlist;
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}
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err = evlist__mmap(evlist, UINT_MAX);
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if (err < 0) {
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pr_debug("evlist__mmap: %s\n",
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str_error_r(errno, sbuf, sizeof(sbuf)));
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goto out_delete_evlist;
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}
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evlist__enable(evlist);
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/*
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* Generate the event:
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*/
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openat(AT_FDCWD, filename, flags);
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while (1) {
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int before = nr_events;
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for (i = 0; i < evlist->nr_mmaps; i++) {
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union perf_event *event;
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struct mmap *md;
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md = &evlist->mmap[i];
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if (perf_mmap__read_init(md) < 0)
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continue;
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while ((event = perf_mmap__read_event(md)) != NULL) {
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const u32 type = event->header.type;
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int tp_flags;
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struct perf_sample sample;
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++nr_events;
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if (type != PERF_RECORD_SAMPLE) {
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perf_mmap__consume(md);
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continue;
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}
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err = perf_evsel__parse_sample(evsel, event, &sample);
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if (err) {
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pr_debug("Can't parse sample, err = %d\n", err);
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goto out_delete_evlist;
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}
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tp_flags = perf_evsel__intval(evsel, &sample, "flags");
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if (flags != tp_flags) {
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pr_debug("%s: Expected flags=%#x, got %#x\n",
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__func__, flags, tp_flags);
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goto out_delete_evlist;
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}
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goto out_ok;
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}
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perf_mmap__read_done(md);
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}
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if (nr_events == before)
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perf_evlist__poll(evlist, 10);
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if (++nr_polls > 5) {
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pr_debug("%s: no events!\n", __func__);
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goto out_delete_evlist;
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}
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}
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out_ok:
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err = 0;
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out_delete_evlist:
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evlist__delete(evlist);
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out:
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return err;
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}
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