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authorMartin KaFai Lau <kafai@fb.com>2018-06-02 19:06:51 +0300
committerAlexei Starovoitov <ast@kernel.org>2018-06-02 21:22:36 +0300
commit8175383f2320dbc1b4e803d857ed499ed3e76199 (patch)
treee567188ab587107f05d7faebe771de2e50ff241a /tools
parentb9308ae696b2c35e862636eec631d95ff958c33d (diff)
downloadlinux-8175383f2320dbc1b4e803d857ed499ed3e76199.tar.xz
bpf: btf: Ensure t->type == 0 for BTF_KIND_FWD
The t->type in BTF_KIND_FWD is not used. It must be 0. This patch ensures that and also adds a test case in test_btf.c Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/bpf/test_btf.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/test_btf.c b/tools/testing/selftests/bpf/test_btf.c
index fd8246e84149..3619f3023088 100644
--- a/tools/testing/selftests/bpf/test_btf.c
+++ b/tools/testing/selftests/bpf/test_btf.c
@@ -1242,6 +1242,28 @@ static struct btf_raw_test raw_tests[] = {
.err_str = "Invalid btf_info",
},
+{
+ .descr = "fwd test. t->type != 0\"",
+ .raw_types = {
+ /* int */ /* [1] */
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+ /* fwd type */ /* [2] */
+ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 1),
+ BTF_END_RAW,
+ },
+ .str_sec = "",
+ .str_sec_size = sizeof(""),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "fwd_test_map",
+ .key_size = sizeof(int),
+ .value_size = sizeof(int),
+ .key_type_id = 1,
+ .value_type_id = 1,
+ .max_entries = 4,
+ .btf_load_err = true,
+ .err_str = "type != 0",
+},
+
}; /* struct btf_raw_test raw_tests[] */
static const char *get_next_str(const char *start, const char *end)