libbpf: Add missed btf_ext__raw_data() API

Another API that was declared in libbpf.map but actual implementation
was missing. btf_ext__get_raw_data() was intended as a discouraged alias
to consistently-named btf_ext__raw_data(), so make this an actuality.

Fixes: 20eccf29e297 ("libbpf: hide and discourage inconsistently named getters")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20240201172027.604869-5-andrii@kernel.org

diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c
index 845034d..a17b4c9 100644 (file)
--- a/tools/lib/bpf/btf.c
+++ b/tools/lib/bpf/btf.c
@@ -3050,12 +3050,16 @@ done:
        return btf_ext;
 }
 
-const void *btf_ext__get_raw_data(const struct btf_ext *btf_ext, __u32 *size)
+const void *btf_ext__raw_data(const struct btf_ext *btf_ext, __u32 *size)
 {
        *size = btf_ext->data_size;
        return btf_ext->data;
 }
 
+__attribute__((alias("btf_ext__raw_data")))
+const void *btf_ext__get_raw_data(const struct btf_ext *btf_ext, __u32 *size);
+
+
 struct btf_dedup;
 
 static struct btf_dedup *btf_dedup_new(struct btf *btf, const struct btf_dedup_opts *opts);

diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map
index 386964f..86804fd 100644 (file)
--- a/tools/lib/bpf/libbpf.map
+++ b/tools/lib/bpf/libbpf.map
@@ -325,7 +325,6 @@ LIBBPF_0.7.0 {
                bpf_xdp_detach;
                bpf_xdp_query;
                bpf_xdp_query_id;
-               btf_ext__raw_data;
                libbpf_probe_bpf_helper;
                libbpf_probe_bpf_map_type;
                libbpf_probe_bpf_prog_type;
@@ -413,4 +412,5 @@ LIBBPF_1.4.0 {
        global:
                bpf_token_create;
                btf__new_split;
+               btf_ext__raw_data;
 } LIBBPF_1.3.0;

diff --git a/tools/lib/bpf/linker.c b/tools/lib/bpf/linker.c
index 16bca56..0d4be82 100644 (file)
--- a/tools/lib/bpf/linker.c
+++ b/tools/lib/bpf/linker.c
@@ -2732,7 +2732,7 @@ static int finalize_btf(struct bpf_linker *linker)
 
        /* Emit .BTF.ext section */
        if (linker->btf_ext) {
-               raw_data = btf_ext__get_raw_data(linker->btf_ext, &raw_sz);
+               raw_data = btf_ext__raw_data(linker->btf_ext, &raw_sz);
                if (!raw_data)
                        return -ENOMEM;