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tools/bpf: add new fields for program load in lib/bpf 

The new fields are added for program load in lib/bpf so
application uses api bpf_load_program_xattr() is able
to load program with btf and func_info data.

This functionality will be used in next patch
by bpf selftest test_btf.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Yonghong Song 2018-11-19 15:29:14 -08:00 committed by Alexei Starovoitov
parent cc19435cb2
commit 7e0d0fb552
2 changed files with 8 additions and 0 deletions
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4
tools/lib/bpf/bpf.c
View File

@ -205,6 +205,10 @@ int bpf_load_program_xattr(const struct bpf_load_program_attr *load_attr,
attr.log_level = 0;
attr.kern_version = load_attr->kern_version;
attr.prog_ifindex = load_attr->prog_ifindex;
attr.prog_btf_fd = load_attr->prog_btf_fd;
attr.func_info_rec_size = load_attr->func_info_rec_size;
attr.func_info_cnt = load_attr->func_info_cnt;
attr.func_info = ptr_to_u64(load_attr->func_info);
memcpy(attr.prog_name, load_attr->name,
min(name_len, BPF_OBJ_NAME_LEN - 1));

4
tools/lib/bpf/bpf.h
View File

@ -74,6 +74,10 @@ struct bpf_load_program_attr {
const char *license;
__u32 kern_version;
__u32 prog_ifindex;
__u32 prog_btf_fd;
__u32 func_info_rec_size;
const void *func_info;
__u32 func_info_cnt;
};
/* Flags to direct loading requirements */