diff options
| author | Andrii Nakryiko <andriin@fb.com> | 2019-08-07 14:39:54 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2019-08-07 14:43:49 -0700 |
| commit | 002d3afce65518dc5dfc398a37c2be2a6bf559c4 (patch) | |
| tree | 45f989fae4a4f266e5b8913ead75b31e7c1a791e /tools/testing/selftests/bpf/prog_tests/core_reloc.c | |
| parent | df36e621418b0de4d4afec5f8002d45ee636bb5c (diff) | |
selftests/bpf: add CO-RE relocs struct flavors tests
Add tests verifying that BPF program can use various struct/union
"flavors" to extract data from the same target struct/union.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/core_reloc.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/core_reloc.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc.c b/tools/testing/selftests/bpf/prog_tests/core_reloc.c index 4323a459c8a2..59fd9cb207ab 100644 --- a/tools/testing/selftests/bpf/prog_tests/core_reloc.c +++ b/tools/testing/selftests/bpf/prog_tests/core_reloc.c @@ -1,5 +1,32 @@ // SPDX-License-Identifier: GPL-2.0 #include <test_progs.h> +#include "progs/core_reloc_types.h" + +#define STRUCT_TO_CHAR_PTR(struct_name) (const char *)&(struct struct_name) + +#define FLAVORS_DATA(struct_name) STRUCT_TO_CHAR_PTR(struct_name) { \ + .a = 42, \ + .b = 0xc001, \ + .c = 0xbeef, \ +} + +#define FLAVORS_CASE_COMMON(name) \ + .case_name = #name, \ + .bpf_obj_file = "test_core_reloc_flavors.o", \ + .btf_src_file = "btf__core_reloc_" #name ".o" \ + +#define FLAVORS_CASE(name) { \ + FLAVORS_CASE_COMMON(name), \ + .input = FLAVORS_DATA(core_reloc_##name), \ + .input_len = sizeof(struct core_reloc_##name), \ + .output = FLAVORS_DATA(core_reloc_flavors), \ + .output_len = sizeof(struct core_reloc_flavors), \ +} + +#define FLAVORS_ERR_CASE(name) { \ + FLAVORS_CASE_COMMON(name), \ + .fails = true, \ +} struct core_reloc_test_case { const char *case_name; @@ -23,6 +50,13 @@ static struct core_reloc_test_case test_cases[] = { .output = "\1", /* true */ .output_len = 1, }, + + /* validate BPF program can use multiple flavors to match against + * single target BTF type + */ + FLAVORS_CASE(flavors), + + FLAVORS_ERR_CASE(flavors__err_wrong_name), }; struct data { |