diff options
| author | Andrii Nakryiko <andriin@fb.com> | 2019-11-01 15:28:10 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-11-04 16:06:56 +0100 |
| commit | 0b163565b918fd5ad1cf8ab7a92cffa06c13b204 (patch) | |
| tree | 48a764d061039d16ec47fbe56f7de6f261416fc6 /tools/testing/selftests/bpf/prog_tests/core_reloc.c | |
| parent | 8b1cb1c9601f835c025af5b3cf0e98c8048ad30b (diff) | |
selftests/bpf: Add field size relocation tests
Add test verifying correctness and logic of field size relocation support in
libbpf.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20191101222810.1246166-6-andriin@fb.com
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/core_reloc.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/core_reloc.c | 39 |
1 files changed, 34 insertions, 5 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc.c b/tools/testing/selftests/bpf/prog_tests/core_reloc.c index 340aa12cea06..00f1f3229542 100644 --- a/tools/testing/selftests/bpf/prog_tests/core_reloc.c +++ b/tools/testing/selftests/bpf/prog_tests/core_reloc.c @@ -174,15 +174,11 @@ .fails = true, \ } -#define EXISTENCE_DATA(struct_name) STRUCT_TO_CHAR_PTR(struct_name) { \ - .a = 42, \ -} - #define EXISTENCE_CASE_COMMON(name) \ .case_name = #name, \ .bpf_obj_file = "test_core_reloc_existence.o", \ .btf_src_file = "btf__core_reloc_" #name ".o", \ - .relaxed_core_relocs = true \ + .relaxed_core_relocs = true #define EXISTENCE_ERR_CASE(name) { \ EXISTENCE_CASE_COMMON(name), \ @@ -225,6 +221,35 @@ .fails = true, \ } +#define SIZE_CASE_COMMON(name) \ + .case_name = #name, \ + .bpf_obj_file = "test_core_reloc_size.o", \ + .btf_src_file = "btf__core_reloc_" #name ".o", \ + .relaxed_core_relocs = true + +#define SIZE_OUTPUT_DATA(type) \ + STRUCT_TO_CHAR_PTR(core_reloc_size_output) { \ + .int_sz = sizeof(((type *)0)->int_field), \ + .struct_sz = sizeof(((type *)0)->struct_field), \ + .union_sz = sizeof(((type *)0)->union_field), \ + .arr_sz = sizeof(((type *)0)->arr_field), \ + .arr_elem_sz = sizeof(((type *)0)->arr_field[0]), \ + .ptr_sz = sizeof(((type *)0)->ptr_field), \ + .enum_sz = sizeof(((type *)0)->enum_field), \ + } + +#define SIZE_CASE(name) { \ + SIZE_CASE_COMMON(name), \ + .input_len = 0, \ + .output = SIZE_OUTPUT_DATA(struct core_reloc_##name), \ + .output_len = sizeof(struct core_reloc_size_output), \ +} + +#define SIZE_ERR_CASE(name) { \ + SIZE_CASE_COMMON(name), \ + .fails = true, \ +} + struct core_reloc_test_case { const char *case_name; const char *bpf_obj_file; @@ -423,6 +448,10 @@ static struct core_reloc_test_case test_cases[] = { .ub2 = 0x0812345678FEDCBA, }), BITFIELDS_ERR_CASE(bitfields___err_too_big_bitfield), + + /* size relocation checks */ + SIZE_CASE(size), + SIZE_CASE(size___diff_sz), }; struct data { |