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| author |   Martin KaFai Lau <kafai@fb.com> | 2018-07-24 08:40:22 -0700 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2018-07-25 06:57:55 +0200 |
| commit | 38d5d3b3d5dbc0e0bb51fa6f7559d0d5a27916f6 (patch) | |
| tree | c19295299de7d53fcacffb42ea67b3c00206aeab /tools/testing/selftests/bpf/test_btf_haskv.c | |
| parent | bpf: Replace [u]int32_t and [u]int64_t in libbpf (diff) | |
| download | linux-dev-38d5d3b3d5dbc0e0bb51fa6f7559d0d5a27916f6.tar.xz linux-dev-38d5d3b3d5dbc0e0bb51fa6f7559d0d5a27916f6.zip | |
bpf: Introduce BPF_ANNOTATE_KV_PAIR
This patch introduces BPF_ANNOTATE_KV_PAIR to signal the
bpf loader about the btf key_type and value_type of a bpf map.
Please refer to the changes in test_btf_haskv.c for its usage.
Both iproute2 and libbpf loader will then have the same
convention to find out the map's btf_key_type_id and
btf_value_type_id from a map's name.
Fixes: 8a138aed4a80 ("bpf: btf: Add BTF support to libbpf")
Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/testing/selftests/bpf/test_btf_haskv.c')
| -rw-r--r-- | tools/testing/selftests/bpf/test_btf_haskv.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/tools/testing/selftests/bpf/test_btf_haskv.c b/tools/testing/selftests/bpf/test_btf_haskv.c index 8c7ca096ecf2..b21b876f475d 100644 --- a/tools/testing/selftests/bpf/test_btf_haskv.c +++ b/tools/testing/selftests/bpf/test_btf_haskv.c @@ -10,11 +10,6 @@ struct ipv_counts { unsigned int v6; }; -typedef int btf_map_key; -typedef struct ipv_counts btf_map_value; -btf_map_key dumm_key; -btf_map_value dummy_value; - struct bpf_map_def SEC("maps") btf_map = { .type = BPF_MAP_TYPE_ARRAY, .key_size = sizeof(int), @@ -22,6 +17,8 @@ struct bpf_map_def SEC("maps") btf_map = { .max_entries = 4, }; +BPF_ANNOTATE_KV_PAIR(btf_map, int, struct ipv_counts); + struct dummy_tracepoint_args { unsigned long long pad; struct sock *sock; |