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Diffstat (limited to '')
-rw-r--r-- | tools/testing/selftests/bpf/progs/test_btf_nokv.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_btf_nokv.c b/tools/testing/selftests/bpf/progs/test_btf_nokv.c new file mode 100644 index 000000000..506da7fd2 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_btf_nokv.c @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2018 Facebook */ +#include <linux/bpf.h> +#include <bpf/bpf_helpers.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, +}; + +__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"; |