Commit 20a9ad2e authored by Andrii Nakryiko's avatar Andrii Nakryiko Committed by Alexei Starovoitov
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selftests/bpf: add CO-RE relocs array tests 



Add tests for various array handling/relocation scenarios.

Signed-off-by: default avatarAndrii Nakryiko <andriin@fb.com>
Acked-by: default avatarSong Liu <songliubraving@fb.com>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent ec6438a9

tools/testing/selftests/bpf/prog_tests/core_reloc.c

+41 −0
Original line number Diff line number Diff line
@@ -51,6 +51,36 @@ 
	.fails = true,							\

}



#define ARRAYS_DATA(struct_name) STRUCT_TO_CHAR_PTR(struct_name) {	\

	.a = { [2] = 1 },						\

	.b = { [1] = { [2] = { [3] = 2 } } },				\

	.c = { [1] = { .c =  3 } },					\

	.d = { [0] = { [0] = { .d = 4 } } },				\

}



#define ARRAYS_CASE_COMMON(name)					\

	.case_name = #name,						\

	.bpf_obj_file = "test_core_reloc_arrays.o",			\

	.btf_src_file = "btf__core_reloc_" #name ".o"



#define ARRAYS_CASE(name) {						\

	ARRAYS_CASE_COMMON(name),					\

	.input = ARRAYS_DATA(core_reloc_##name),			\

	.input_len = sizeof(struct core_reloc_##name),			\

	.output = STRUCT_TO_CHAR_PTR(core_reloc_arrays_output) {	\

		.a2   = 1,						\

		.b123 = 2,						\

		.c1c  = 3,						\

		.d00d = 4,						\

	},								\

	.output_len = sizeof(struct core_reloc_arrays_output)		\

}



#define ARRAYS_ERR_CASE(name) {						\

	ARRAYS_CASE_COMMON(name),					\

	.fails = true,							\

}



struct core_reloc_test_case {

	const char *case_name;

	const char *bpf_obj_file;
@@ -96,6 +126,17 @@ static struct core_reloc_test_case test_cases[] = { 
	NESTING_ERR_CASE(nesting___err_dup_incompat_types),

	NESTING_ERR_CASE(nesting___err_partial_match_dups),

	NESTING_ERR_CASE(nesting___err_too_deep),



	/* various array access relocation scenarios */

	ARRAYS_CASE(arrays),

	ARRAYS_CASE(arrays___diff_arr_dim),

	ARRAYS_CASE(arrays___diff_arr_val_sz),



	ARRAYS_ERR_CASE(arrays___err_too_small),

	ARRAYS_ERR_CASE(arrays___err_too_shallow),

	ARRAYS_ERR_CASE(arrays___err_non_array),

	ARRAYS_ERR_CASE(arrays___err_wrong_val_type1),

	ARRAYS_ERR_CASE(arrays___err_wrong_val_type2),

};



struct data {

tools/testing/selftests/bpf/progs/btf__core_reloc_arrays.c

0 → 100644
+3 −0
Original line number Diff line number Diff line 
#include "core_reloc_types.h"



void f(struct core_reloc_arrays x) {}

tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___diff_arr_dim.c

0 → 100644
+3 −0
Original line number Diff line number Diff line 
#include "core_reloc_types.h"



void f(struct core_reloc_arrays___diff_arr_dim x) {}

tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___diff_arr_val_sz.c

0 → 100644
+3 −0
Original line number Diff line number Diff line 
#include "core_reloc_types.h"



void f(struct core_reloc_arrays___diff_arr_val_sz x) {}

tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_non_array.c

0 → 100644
+3 −0
Original line number Diff line number Diff line 
#include "core_reloc_types.h"



void f(struct core_reloc_arrays___err_non_array x) {}