Commit ec6438a9 authored by Andrii Nakryiko's avatar Andrii Nakryiko Committed by Alexei Starovoitov
Browse files

selftests/bpf: add CO-RE relocs nesting tests 



Add a bunch of test validating correct handling of nested
structs/unions.

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 002d3afc

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

+39 −0
Original line number Diff line number Diff line
@@ -28,6 +28,29 @@ 
	.fails = true,							\

}



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

	.a = { .a = { .a = 42 } },					\

	.b = { .b = { .b = 0xc001 } },					\

}



#define NESTING_CASE_COMMON(name)					\

	.case_name = #name,						\

	.bpf_obj_file = "test_core_reloc_nesting.o",			\

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



#define NESTING_CASE(name) {						\

	NESTING_CASE_COMMON(name),					\

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

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

	.output = NESTING_DATA(core_reloc_nesting),			\

	.output_len = sizeof(struct core_reloc_nesting)			\

}



#define NESTING_ERR_CASE(name) {					\

	NESTING_CASE_COMMON(name),					\

	.fails = true,							\

}



struct core_reloc_test_case {

	const char *case_name;

	const char *bpf_obj_file;
@@ -57,6 +80,22 @@ static struct core_reloc_test_case test_cases[] = { 
	FLAVORS_CASE(flavors),



	FLAVORS_ERR_CASE(flavors__err_wrong_name),



	/* various struct/enum nesting and resolution scenarios */

	NESTING_CASE(nesting),

	NESTING_CASE(nesting___anon_embed),

	NESTING_CASE(nesting___struct_union_mixup),

	NESTING_CASE(nesting___extra_nesting),

	NESTING_CASE(nesting___dup_compat_types),



	NESTING_ERR_CASE(nesting___err_missing_field),

	NESTING_ERR_CASE(nesting___err_array_field),

	NESTING_ERR_CASE(nesting___err_missing_container),

	NESTING_ERR_CASE(nesting___err_nonstruct_container),

	NESTING_ERR_CASE(nesting___err_array_container),

	NESTING_ERR_CASE(nesting___err_dup_incompat_types),

	NESTING_ERR_CASE(nesting___err_partial_match_dups),

	NESTING_ERR_CASE(nesting___err_too_deep),

};



struct data {

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

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



void f(struct core_reloc_nesting x) {}

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

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



void f(struct core_reloc_nesting___anon_embed x) {}

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

0 → 100644
+5 −0
Original line number Diff line number Diff line 
#include "core_reloc_types.h"



void f1(struct core_reloc_nesting___dup_compat_types x) {}

void f2(struct core_reloc_nesting___dup_compat_types__2 x) {}

void f3(struct core_reloc_nesting___dup_compat_types__3 x) {}

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

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



void f(struct core_reloc_nesting___err_array_container x) {}