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libbpf: Rename btf__load() as btf__load_into_kernel() 

As part of the effort to move towards a v1.0 for libbpf, rename
btf__load() function, used to "upload" BTF information into the kernel,
as btf__load_into_kernel(). This new name better reflects what the
function does.

References:

- https://github.com/libbpf/libbpf/issues/278
- https://github.com/libbpf/libbpf/wiki/Libbpf:-the-road-to-v1.0#btfh-apis

Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20210729162028.29512-3-quentin@isovalent.com
This commit is contained in:
Quentin Monnet 2021-07-29 17:20:22 +01:00 committed by Andrii Nakryiko
parent 6d2d73cdd6
commit 3c7e585906
4 changed files with 5 additions and 2 deletions
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3
tools/lib/bpf/btf.c
View File

@ -1180,7 +1180,7 @@ int btf__finalize_data(struct bpf_object *obj, struct btf *btf)
static void *btf_get_raw_data(const struct btf *btf, __u32 *size, bool swap_endian);
int btf__load(struct btf *btf)
int btf__load_into_kernel(struct btf *btf)
{
__u32 log_buf_size = 0, raw_size;
char *log_buf = NULL;
@ -1228,6 +1228,7 @@ done:
free(log_buf);
return libbpf_err(err);
}
int btf__load(struct btf *) __attribute__((alias("btf__load_into_kernel")));
int btf__fd(const struct btf *btf)
{

1
tools/lib/bpf/btf.h
View File

@ -46,6 +46,7 @@ LIBBPF_API struct btf *btf__parse_raw_split(const char *path, struct btf *base_b
LIBBPF_API int btf__finalize_data(struct bpf_object *obj, struct btf *btf);
LIBBPF_API int btf__load(struct btf *btf);
LIBBPF_API int btf__load_into_kernel(struct btf *btf);
LIBBPF_API __s32 btf__find_by_name(const struct btf *btf,
const char *type_name);
LIBBPF_API __s32 btf__find_by_name_kind(const struct btf *btf,

2
tools/lib/bpf/libbpf.c
View File

@ -2769,7 +2769,7 @@ static int bpf_object__sanitize_and_load_btf(struct bpf_object *obj)
*/
btf__set_fd(kern_btf, 0);
} else {
err = btf__load(kern_btf);
err = btf__load_into_kernel(kern_btf);
}
if (sanitize) {
if (!err) {

1
tools/lib/bpf/libbpf.map
View File

@ -375,6 +375,7 @@ LIBBPF_0.5.0 {
bpf_map_lookup_and_delete_elem_flags;
bpf_program__attach_kprobe_opts;
bpf_object__gen_loader;
btf__load_into_kernel;
btf_dump__dump_type_data;
libbpf_set_strict_mode;
} LIBBPF_0.4.0;