linux-stable/tools/testing/selftests/bpf/btf_helpers.h
Andrii Nakryiko 232338fa2f selftests/bpf: Add split BTF dedup selftests
Add selftests validating BTF deduplication for split BTF case. Add a helper
macro that allows to validate entire BTF with raw BTF dump, not just
type-by-type. This saves tons of code and complexity.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20201105043402.2530976-11-andrii@kernel.org
2020-11-05 18:37:31 -08:00

19 lines
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C

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2020 Facebook */
#ifndef __BTF_HELPERS_H
#define __BTF_HELPERS_H
#include <stdio.h>
#include <bpf/btf.h>
int fprintf_btf_type_raw(FILE *out, const struct btf *btf, __u32 id);
const char *btf_type_raw_dump(const struct btf *btf, int type_id);
int btf_validate_raw(struct btf *btf, int nr_types, const char *exp_types[]);
#define VALIDATE_RAW_BTF(btf, raw_types...) \
btf_validate_raw(btf, \
sizeof((const char *[]){raw_types})/sizeof(void *),\
(const char *[]){raw_types})
const char *btf_type_c_dump(const struct btf *btf);
#endif