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libbpf: Make few internal helpers available outside of libbpf.c

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Make skip_mods_and_typedefs(), btf_kind_str(), and btf_func_linkage() helpers
available outside of libbpf.c, to be used by static linker code.

Also do few cleanups (error code fixes, comment clean up, etc) that don't
deserve their own commit.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210423181348.1801389-9-andrii@kernel.org
This commit is contained in:
Andrii Nakryiko
2021-04-23 11:13:38 -07:00
committed by Andrii Nakryiko
parent 4dcf439178
commit 24b5d82967
3 changed files with 16 additions and 18 deletions
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13
src/libbpf.c
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@@ -69,8 +69,6 @@
#define __printf(a, b) __attribute__((format(printf, a, b)))
static struct bpf_map *bpf_object__add_map(struct bpf_object *obj);
static const struct btf_type *
skip_mods_and_typedefs(const struct btf *btf, __u32 id, __u32 *res_id);
static bool prog_is_subprog(const struct bpf_object *obj, const struct bpf_program *prog);
static int __base_pr(enum libbpf_print_level level, const char *format,
@@ -1906,7 +1904,7 @@ static int bpf_object__init_user_maps(struct bpf_object *obj, bool strict)
return 0;
}
static const struct btf_type *
const struct btf_type *
skip_mods_and_typedefs(const struct btf *btf, __u32 id, __u32 *res_id)
{
const struct btf_type *t = btf__type_by_id(btf, id);
@@ -1961,16 +1959,11 @@ static const char *__btf_kind_str(__u16 kind)
}
}
static const char *btf_kind_str(const struct btf_type *t)
const char *btf_kind_str(const struct btf_type *t)
{
return __btf_kind_str(btf_kind(t));
}
static enum btf_func_linkage btf_func_linkage(const struct btf_type *t)
{
return (enum btf_func_linkage)BTF_INFO_VLEN(t->info);
}
/*
* Fetch integer attribute of BTF map definition. Such attributes are
* represented using a pointer to an array, in which dimensionality of array
@@ -7036,7 +7029,7 @@ static bool insn_is_helper_call(struct bpf_insn *insn, enum bpf_func_id *func_id
return false;
}
static int bpf_object__sanitize_prog(struct bpf_object* obj, struct bpf_program *prog)
static int bpf_object__sanitize_prog(struct bpf_object *obj, struct bpf_program *prog)
{
struct bpf_insn *insn = prog->insns;
enum bpf_func_id func_id;