[PATCH bpf-next v4 07/13] tools/bpf: add new fields for program load in lib/bpf

[Yonghong Song]

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.

Acked-by: Martin KaFai Lau <ka...@fb.com>
Signed-off-by: Yonghong Song <y...@fb.com>
---
 tools/lib/bpf/bpf.c | 4 ++++
 tools/lib/bpf/bpf.h | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index 03f9bcc4ef50..06fc5e91ac51 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -196,6 +196,10 @@ 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));
 
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h
index 26a51538213c..8bdfd806253a 100644
--- a/tools/lib/bpf/bpf.h
+++ b/tools/lib/bpf/bpf.h
@@ -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 */
-- 
2.17.1