Commit f4db3dd5 authored by Yonghong Song's avatar Yonghong Song Committed by Alexei Starovoitov
Browse files

selftests/bpf: Add a test for enum64 value relocations 



Add a test for enum64 value relocations.
The test will be skipped if clang version is 14 or lower
since enum64 is only supported from version 15.

Acked-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Signed-off-by: default avatarYonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220607062718.3726307-1-yhs@fb.com


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent adc26d13

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

+58 −0
Original line number Diff line number Diff line
@@ -363,6 +363,25 @@ static int duration = 0; 
	.fails = true,							\

}



#define ENUM64VAL_CASE_COMMON(name)					\

	.case_name = #name,						\

	.bpf_obj_file = "test_core_reloc_enum64val.o",			\

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

	.raw_tp_name = "sys_enter",					\

	.prog_name = "test_core_enum64val"



#define ENUM64VAL_CASE(name, ...) {					\

	ENUM64VAL_CASE_COMMON(name),					\

	.output = STRUCT_TO_CHAR_PTR(core_reloc_enum64val_output)	\

			__VA_ARGS__,					\

	.output_len = sizeof(struct core_reloc_enum64val_output),	\

}



#define ENUM64VAL_ERR_CASE(name) {					\

	ENUM64VAL_CASE_COMMON(name),					\

	.fails = true,							\

}



struct core_reloc_test_case;



typedef int (*setup_test_fn)(struct core_reloc_test_case *test);
@@ -831,6 +850,45 @@ static const struct core_reloc_test_case test_cases[] = { 
		.anon_val2 = 0x222,

	}),

	ENUMVAL_ERR_CASE(enumval___err_missing),



	/* 64bit enumerator value existence and value relocations */

	ENUM64VAL_CASE(enum64val, {

		.unsigned_val1_exists = true,

		.unsigned_val2_exists = true,

		.unsigned_val3_exists = true,

		.signed_val1_exists = true,

		.signed_val2_exists = true,

		.signed_val3_exists = true,

		.unsigned_val1 = 0x1ffffffffULL,

		.unsigned_val2 = 0x2,

		.signed_val1 = 0x1ffffffffLL,

		.signed_val2 = -2,

	}),

	ENUM64VAL_CASE(enum64val___diff, {

		.unsigned_val1_exists = true,

		.unsigned_val2_exists = true,

		.unsigned_val3_exists = true,

		.signed_val1_exists = true,

		.signed_val2_exists = true,

		.signed_val3_exists = true,

		.unsigned_val1 = 0x101ffffffffULL,

		.unsigned_val2 = 0x202ffffffffULL,

		.signed_val1 = -101,

		.signed_val2 = -202,

	}),

	ENUM64VAL_CASE(enum64val___val3_missing, {

		.unsigned_val1_exists = true,

		.unsigned_val2_exists = true,

		.unsigned_val3_exists = false,

		.signed_val1_exists = true,

		.signed_val2_exists = true,

		.signed_val3_exists = false,

		.unsigned_val1 = 0x111ffffffffULL,

		.unsigned_val2 = 0x222,

		.signed_val1 = 0x111ffffffffLL,

		.signed_val2 = -222,

	}),

	ENUM64VAL_ERR_CASE(enum64val___err_missing),

};



struct data {

tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val.c

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



void f(struct core_reloc_enum64val x) {}

tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___diff.c

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



void f(struct core_reloc_enum64val___diff x) {}

tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___err_missing.c

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



void f(struct core_reloc_enum64val___err_missing x) {}

tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___val3_missing.c

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



void f(struct core_reloc_enum64val___val3_missing x) {}