mirror of
https://github.com/torvalds/linux.git
synced 2024-11-25 21:51:40 +00:00
fd3f518fc1
Remove unnecessary include of internal threadmap.h and refcount.h in thread_map.h. Switch to using public APIs when possible or including the internal header file in the C file. Fix a transitive dependency in openat-syscall.c broken by the clean up. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Nicolas Schier <nicolas@fjasle.eu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: bpf@vger.kernel.org Link: http://lore.kernel.org/lkml/20221109184914.1357295-13-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <errno.h>
|
|
#include <inttypes.h>
|
|
#include <api/fs/tracing_path.h>
|
|
#include <linux/err.h>
|
|
#include <linux/string.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include "thread_map.h"
|
|
#include "evsel.h"
|
|
#include "debug.h"
|
|
#include "tests.h"
|
|
#include "util/counts.h"
|
|
|
|
static int test__openat_syscall_event(struct test_suite *test __maybe_unused,
|
|
int subtest __maybe_unused)
|
|
{
|
|
int err = TEST_FAIL, fd;
|
|
struct evsel *evsel;
|
|
unsigned int nr_openat_calls = 111, i;
|
|
struct perf_thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX);
|
|
char sbuf[STRERR_BUFSIZE];
|
|
char errbuf[BUFSIZ];
|
|
|
|
if (threads == NULL) {
|
|
pr_debug("thread_map__new\n");
|
|
return TEST_FAIL;
|
|
}
|
|
|
|
evsel = evsel__newtp("syscalls", "sys_enter_openat");
|
|
if (IS_ERR(evsel)) {
|
|
tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "syscalls", "sys_enter_openat");
|
|
pr_debug("%s\n", errbuf);
|
|
err = TEST_SKIP;
|
|
goto out_thread_map_delete;
|
|
}
|
|
|
|
if (evsel__open_per_thread(evsel, threads) < 0) {
|
|
pr_debug("failed to open counter: %s, "
|
|
"tweak /proc/sys/kernel/perf_event_paranoid?\n",
|
|
str_error_r(errno, sbuf, sizeof(sbuf)));
|
|
err = TEST_SKIP;
|
|
goto out_evsel_delete;
|
|
}
|
|
|
|
for (i = 0; i < nr_openat_calls; ++i) {
|
|
fd = openat(0, "/etc/passwd", O_RDONLY);
|
|
close(fd);
|
|
}
|
|
|
|
if (evsel__read_on_cpu(evsel, 0, 0) < 0) {
|
|
pr_debug("evsel__read_on_cpu\n");
|
|
goto out_close_fd;
|
|
}
|
|
|
|
if (perf_counts(evsel->counts, 0, 0)->val != nr_openat_calls) {
|
|
pr_debug("evsel__read_on_cpu: expected to intercept %d calls, got %" PRIu64 "\n",
|
|
nr_openat_calls, perf_counts(evsel->counts, 0, 0)->val);
|
|
goto out_close_fd;
|
|
}
|
|
|
|
err = TEST_OK;
|
|
out_close_fd:
|
|
perf_evsel__close_fd(&evsel->core);
|
|
out_evsel_delete:
|
|
evsel__delete(evsel);
|
|
out_thread_map_delete:
|
|
perf_thread_map__put(threads);
|
|
return err;
|
|
}
|
|
|
|
static struct test_case tests__openat_syscall_event[] = {
|
|
TEST_CASE_REASON("Detect openat syscall event",
|
|
openat_syscall_event,
|
|
"permissions"),
|
|
{ .name = NULL, }
|
|
};
|
|
|
|
struct test_suite suite__openat_syscall_event = {
|
|
.desc = "Detect openat syscall event",
|
|
.test_cases = tests__openat_syscall_event,
|
|
};
|