diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_btf_haskv.c')
-rw-r--r-- | tools/testing/selftests/bpf/progs/test_btf_haskv.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_btf_haskv.c b/tools/testing/selftests/bpf/progs/test_btf_haskv.c new file mode 100644 index 000000000..31538c9ed --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_btf_haskv.c @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2018 Facebook */ +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> +#include "bpf_legacy.h" + +int _version SEC("version") = 1; + +struct ipv_counts { + unsigned int v4; + unsigned int v6; +}; + +struct bpf_map_def SEC("maps") btf_map = { + .type = BPF_MAP_TYPE_ARRAY, + .key_size = sizeof(int), + .value_size = sizeof(struct ipv_counts), + .max_entries = 4, +}; + +BPF_ANNOTATE_KV_PAIR(btf_map, int, struct ipv_counts); + +__attribute__((noinline)) +int test_long_fname_2(void) +{ + struct ipv_counts *counts; + int key = 0; + + counts = bpf_map_lookup_elem(&btf_map, &key); + if (!counts) + return 0; + + counts->v6++; + + return 0; +} + +__attribute__((noinline)) +int test_long_fname_1(void) +{ + return test_long_fname_2(); +} + +SEC("dummy_tracepoint") +int _dummy_tracepoint(void *arg) +{ + return test_long_fname_1(); +} + +char _license[] SEC("license") = "GPL"; |