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-rw-r--r--tools/lib/bpf/btf.h29
1 files changed, 25 insertions, 4 deletions
diff --git a/tools/lib/bpf/btf.h b/tools/lib/bpf/btf.h
index d9ac73a02cde..8d73f7f5551f 100644
--- a/tools/lib/bpf/btf.h
+++ b/tools/lib/bpf/btf.h
@@ -8,14 +8,12 @@
#include <linux/btf.h>
#include <linux/types.h>
+#include "libbpf_common.h"
+
#ifdef __cplusplus
extern "C" {
#endif
-#ifndef LIBBPF_API
-#define LIBBPF_API __attribute__((visibility("default")))
-#endif
-
#define BTF_ELF_SEC ".BTF"
#define BTF_EXT_ELF_SEC ".BTF.ext"
#define MAPS_ELF_SEC ".maps"
@@ -79,6 +77,7 @@ LIBBPF_API const struct btf_type *btf__type_by_id(const struct btf *btf,
__u32 id);
LIBBPF_API __s64 btf__resolve_size(const struct btf *btf, __u32 type_id);
LIBBPF_API int btf__resolve_type(const struct btf *btf, __u32 type_id);
+LIBBPF_API int btf__align_of(const struct btf *btf, __u32 id);
LIBBPF_API int btf__fd(const struct btf *btf);
LIBBPF_API const void *btf__get_raw_data(const struct btf *btf, __u32 *size);
LIBBPF_API const char *btf__name_by_offset(const struct btf *btf, __u32 offset);
@@ -127,6 +126,28 @@ LIBBPF_API void btf_dump__free(struct btf_dump *d);
LIBBPF_API int btf_dump__dump_type(struct btf_dump *d, __u32 id);
+struct btf_dump_emit_type_decl_opts {
+ /* size of this struct, for forward/backward compatiblity */
+ size_t sz;
+ /* optional field name for type declaration, e.g.:
+ * - struct my_struct <FNAME>
+ * - void (*<FNAME>)(int)
+ * - char (*<FNAME>)[123]
+ */
+ const char *field_name;
+ /* extra indentation level (in number of tabs) to emit for multi-line
+ * type declarations (e.g., anonymous struct); applies for lines
+ * starting from the second one (first line is assumed to have
+ * necessary indentation already
+ */
+ int indent_level;
+};
+#define btf_dump_emit_type_decl_opts__last_field indent_level
+
+LIBBPF_API int
+btf_dump__emit_type_decl(struct btf_dump *d, __u32 id,
+ const struct btf_dump_emit_type_decl_opts *opts);
+
/*
* A set of helpers for easier BTF types handling
*/