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Diffstat (limited to 'samples/bpf/tracex6_user.c')
-rw-r--r--samples/bpf/tracex6_user.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/samples/bpf/tracex6_user.c b/samples/bpf/tracex6_user.c
index a05a99a0752f..3341a96fc046 100644
--- a/samples/bpf/tracex6_user.c
+++ b/samples/bpf/tracex6_user.c
@@ -22,6 +22,7 @@
static void check_on_cpu(int cpu, struct perf_event_attr *attr)
{
+ struct bpf_perf_event_value value2;
int pmu_fd, error = 0;
cpu_set_t set;
__u64 value;
@@ -46,8 +47,18 @@ static void check_on_cpu(int cpu, struct perf_event_attr *attr)
fprintf(stderr, "Value missing for CPU %d\n", cpu);
error = 1;
goto on_exit;
+ } else {
+ fprintf(stderr, "CPU %d: %llu\n", cpu, value);
+ }
+ /* The above bpf_map_lookup_elem should trigger the second kprobe */
+ if (bpf_map_lookup_elem(map_fd[2], &cpu, &value2)) {
+ fprintf(stderr, "Value2 missing for CPU %d\n", cpu);
+ error = 1;
+ goto on_exit;
+ } else {
+ fprintf(stderr, "CPU %d: counter: %llu, enabled: %llu, running: %llu\n", cpu,
+ value2.counter, value2.enabled, value2.running);
}
- fprintf(stderr, "CPU %d: %llu\n", cpu, value);
on_exit:
assert(bpf_map_delete_elem(map_fd[0], &cpu) == 0 || error);