summaryrefslogtreecommitdiff
path: root/tools/testing
diff options
context:
space:
mode:
Diffstat (limited to 'tools/testing')
-rw-r--r--tools/testing/selftests/bpf/prog_tests/bpf_iter.c21
-rw-r--r--tools/testing/selftests/bpf/progs/bpf_iter_task_file.c10
2 files changed, 30 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
index 7375d9a6d242..fe1a83b9875c 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
@@ -132,17 +132,38 @@ static void test_task_stack(void)
bpf_iter_task_stack__destroy(skel);
}
+static void *do_nothing(void *arg)
+{
+ pthread_exit(arg);
+}
+
static void test_task_file(void)
{
struct bpf_iter_task_file *skel;
+ pthread_t thread_id;
+ void *ret;
skel = bpf_iter_task_file__open_and_load();
if (CHECK(!skel, "bpf_iter_task_file__open_and_load",
"skeleton open_and_load failed\n"))
return;
+ skel->bss->tgid = getpid();
+
+ if (CHECK(pthread_create(&thread_id, NULL, &do_nothing, NULL),
+ "pthread_create", "pthread_create failed\n"))
+ goto done;
+
do_dummy_read(skel->progs.dump_task_file);
+ if (CHECK(pthread_join(thread_id, &ret) || ret != NULL,
+ "pthread_join", "pthread_join failed\n"))
+ goto done;
+
+ CHECK(skel->bss->count != 0, "check_count",
+ "invalid non pthread file visit count %d\n", skel->bss->count);
+
+done:
bpf_iter_task_file__destroy(skel);
}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_task_file.c b/tools/testing/selftests/bpf/progs/bpf_iter_task_file.c
index 8b787baa2654..b2f7c7c5f952 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_task_file.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_task_file.c
@@ -6,6 +6,9 @@
char _license[] SEC("license") = "GPL";
+int count = 0;
+int tgid = 0;
+
SEC("iter/task_file")
int dump_task_file(struct bpf_iter__task_file *ctx)
{
@@ -17,8 +20,13 @@ int dump_task_file(struct bpf_iter__task_file *ctx)
if (task == (void *)0 || file == (void *)0)
return 0;
- if (ctx->meta->seq_num == 0)
+ if (ctx->meta->seq_num == 0) {
+ count = 0;
BPF_SEQ_PRINTF(seq, " tgid gid fd file\n");
+ }
+
+ if (tgid == task->tgid && task->tgid != task->pid)
+ count++;
BPF_SEQ_PRINTF(seq, "%8d %8d %8d %lx\n", task->tgid, task->pid, fd,
(long)file->f_op);