netdev - [PATCH v2 bpf-next 3/4] libbpf: allow specifying both ELF and raw BTF for CO-RE BTF override

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Message-ID: <20201007202946.3684483-4-andrii@kernel.org>
Date:   Wed, 7 Oct 2020 13:29:45 -0700
From:   Andrii Nakryiko <andrii@...nel.org>
To:     <bpf@...r.kernel.org>, <netdev@...r.kernel.org>, <ast@...com>,
        <daniel@...earbox.net>
CC:     <andrii@...nel.org>, <kernel-team@...com>,
        Luka Perkov <luka.perkov@...tura.hr>,
        Tony Ambardar <tony.ambardar@...il.com>,
        Andrii Nakryiko <andriin@...com>
Subject: [PATCH v2 bpf-next 3/4] libbpf: allow specifying both ELF and raw BTF for CO-RE BTF override

From: Andrii Nakryiko <andriin@...com>

Use generalized BTF parsing logic, making it possible to parse BTF both from
ELF file, as well as a raw BTF dump. This makes it easier to write custom
tests with manually generated BTFs.

Signed-off-by: Andrii Nakryiko <andrii@...nel.org>
---
 tools/lib/bpf/libbpf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 032cf0049ddb..105cb8ad1d75 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -5842,7 +5842,7 @@ bpf_object__relocate_core(struct bpf_object *obj, const char *targ_btf_path)
 		return 0;
 
 	if (targ_btf_path)
-		targ_btf = btf__parse_elf(targ_btf_path, NULL);
+		targ_btf = btf__parse(targ_btf_path, NULL);
 	else
 		targ_btf = obj->btf_vmlinux;
 	if (IS_ERR_OR_NULL(targ_btf)) {
-- 
2.24.1