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-rw-r--r--tools/testing/selftests/bpf/progs/test_obj_id.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_obj_id.c b/tools/testing/selftests/bpf/progs/test_obj_id.c
new file mode 100644
index 000000000..ded71b3ff
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_obj_id.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2017 Facebook
+ */
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+ __uint(type, BPF_MAP_TYPE_ARRAY);
+ __uint(max_entries, 1);
+ __type(key, __u32);
+ __type(value, __u64);
+} test_map_id SEC(".maps");
+
+SEC("raw_tp/sys_enter")
+int test_obj_id(void *ctx)
+{
+ __u32 key = 0;
+ __u64 *value;
+
+ value = bpf_map_lookup_elem(&test_map_id, &key);
+
+ return 0;
+}