1 files changed, 52 insertions, 0 deletions
diff --git a/bfd/elfxx-riscv.h b/bfd/elfxx-riscv.h
index 836f05d..64e41b8 100644
--- a/bfd/elfxx-riscv.h
+++ b/bfd/elfxx-riscv.h
@@ -31,3 +31,55 @@ riscv_reloc_type_lookup (bfd *, bfd_reloc_code_real_type);
 
 extern reloc_howto_type *
 riscv_elf_rtype_to_howto (bfd *, unsigned int r_type);
+
+#define RISCV_DONT_CARE_VERSION -1
+
+/* The information of architecture attribute.  */
+struct riscv_subset_t
+{
+  const char *name;
+  int major_version;
+  int minor_version;
+  struct riscv_subset_t *next;
+};
+
+typedef struct riscv_subset_t riscv_subset_t;
+
+typedef struct {
+  riscv_subset_t *head;
+  riscv_subset_t *tail;
+} riscv_subset_list_t;
+
+extern void
+riscv_release_subset_list (riscv_subset_list_t *);
+
+extern void
+riscv_add_subset (riscv_subset_list_t *,
+		  const char *,
+		  int, int);
+
+extern riscv_subset_t *
+riscv_lookup_subset (const riscv_subset_list_t *,
+		     const char *);
+
+extern riscv_subset_t *
+riscv_lookup_subset_version (const riscv_subset_list_t *,
+			     const char *,
+			     int, int);
+
+typedef struct {
+  riscv_subset_list_t *subset_list;
+  void (*error_handler) (const char *,
+			 ...) ATTRIBUTE_PRINTF_1;
+  unsigned *xlen;
+} riscv_parse_subset_t;
+
+extern bfd_boolean
+riscv_parse_subset (riscv_parse_subset_t *,
+		    const char *);
+
+extern const char *
+riscv_supported_std_ext (void);
+
+extern void
+riscv_release_subset_list (riscv_subset_list_t *);