openharmony/third_party_libbpf
1
0
Fork 0
mirror of https://gitee.com/openharmony/third_party_libbpf synced 2024-10-07 06:23:25 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

libbpf: Open code raw_tp_open and link_create commands.

Browse Source 
Open code raw_tracepoint_open and link_create used by light skeleton
to be able to avoid full libbpf eventually.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20220131220528.98088-4-alexei.starovoitov@gmail.com
This commit is contained in:
Alexei Starovoitov 2022-01-31 14:05:24 -08:00 committed by Andrii Nakryiko
parent bd402dccaf
commit a7a3a8811c
1 changed files with 26 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
src/skel_internal.h
View File

@ -110,6 +110,32 @@ static inline int skel_map_update_elem(int fd, const void *key,
return skel_sys_bpf(BPF_MAP_UPDATE_ELEM, &attr, attr_sz);
}
static inline int skel_raw_tracepoint_open(const char *name, int prog_fd)
{
const size_t attr_sz = offsetofend(union bpf_attr, raw_tracepoint.prog_fd);
union bpf_attr attr;
memset(&attr, 0, attr_sz);
attr.raw_tracepoint.name = (long) name;
attr.raw_tracepoint.prog_fd = prog_fd;
return skel_sys_bpf(BPF_RAW_TRACEPOINT_OPEN, &attr, attr_sz);
}
static inline int skel_link_create(int prog_fd, int target_fd,
enum bpf_attach_type attach_type)
{
const size_t attr_sz = offsetofend(union bpf_attr, link_create.iter_info_len);
union bpf_attr attr;
memset(&attr, 0, attr_sz);
attr.link_create.prog_fd = prog_fd;
attr.link_create.target_fd = target_fd;
attr.link_create.attach_type = attach_type;
return skel_sys_bpf(BPF_LINK_CREATE, &attr, attr_sz);
}
static inline int bpf_load_and_run(struct bpf_load_and_run_opts *opts)
{
int map_fd = -1, prog_fd = -1, key = 0, err;