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libbpf: Fix uninitialized variable in btf_parse_type_sec

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Fix obvious unitialized variable use that wasn't reported by compiler. libbpf
Makefile changes to catch such errors are added separately.

Fixes: 3289959b97 ("libbpf: Support BTF loading and raw data output in both endianness")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200929220604.833631-1-andriin@fb.com
This commit is contained in:
Andrii Nakryiko 2020-09-29 15:06:02 -07:00 committed by Alexei Starovoitov
parent 67e4ca7495
commit 3343391345
1 changed files with 1 additions and 1 deletions
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tools/lib/bpf/btf.c
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@ -347,7 +347,7 @@ static int btf_parse_type_sec(struct btf *btf)
struct btf_header *hdr = btf->hdr;
void *next_type = btf->types_data;
void *end_type = next_type + hdr->type_len;
int err, i, type_size;
int err, i = 0, type_size;
/* VOID (type_id == 0) is specially handled by btf__get_type_by_id(),
* so ensure we can never properly use its offset from index by