Commit c1f5e7dd authored by Andrii Nakryiko's avatar Andrii Nakryiko Committed by Alexei Starovoitov
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selftests/bpf: add CO-RE relocs ints tests 



Add various tests validating handling compatible/incompatible integer
types.

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 d698f9db

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

+40 −0
Original line number Diff line number Diff line
@@ -145,6 +145,35 @@ 
	.output_len = sizeof(struct core_reloc_ptr_as_arr),		\

}



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

	.u8_field = 1,							\

	.s8_field = 2,							\

	.u16_field = 3,							\

	.s16_field = 4,							\

	.u32_field = 5,							\

	.s32_field = 6,							\

	.u64_field = 7,							\

	.s64_field = 8,							\

}



#define INTS_CASE_COMMON(name)						\

	.case_name = #name,						\

	.bpf_obj_file = "test_core_reloc_ints.o",			\

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



#define INTS_CASE(name) {						\

	INTS_CASE_COMMON(name),						\

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

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

	.output = INTS_DATA(core_reloc_ints),				\

	.output_len = sizeof(struct core_reloc_ints),			\

}



#define INTS_ERR_CASE(name) {						\

	INTS_CASE_COMMON(name),						\

	.fails = true,							\

}



struct core_reloc_test_case {

	const char *case_name;

	const char *bpf_obj_file;
@@ -220,6 +249,17 @@ static struct core_reloc_test_case test_cases[] = { 
	/* handling "ptr is an array" semantics */

	PTR_AS_ARR_CASE(ptr_as_arr),

	PTR_AS_ARR_CASE(ptr_as_arr___diff_sz),



	/* int signedness/sizing/bitfield handling */

	INTS_CASE(ints),

	INTS_CASE(ints___bool),

	INTS_CASE(ints___reverse_sign),



	INTS_ERR_CASE(ints___err_bitfield),

	INTS_ERR_CASE(ints___err_wrong_sz_8),

	INTS_ERR_CASE(ints___err_wrong_sz_16),

	INTS_ERR_CASE(ints___err_wrong_sz_32),

	INTS_ERR_CASE(ints___err_wrong_sz_64),

};



struct data {

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

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



void f(struct core_reloc_ints x) {}

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

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



void f(struct core_reloc_ints___bool x) {}

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

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



void f(struct core_reloc_ints___err_bitfield x) {}

tools/testing/selftests/bpf/progs/btf__core_reloc_ints___err_wrong_sz_16.c

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



void f(struct core_reloc_ints___err_wrong_sz_16 x) {}