diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_obj_id.c')
-rw-r--r-- | tools/testing/selftests/bpf/progs/test_obj_id.c | 24 |
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; +} |