/* RISC-V ELF specific backend routines.
- Copyright (C) 2011-2018 Free Software Foundation, Inc.
+ Copyright (C) 2011-2020 Free Software Foundation, Inc.
Contributed by Andrew Waterman (andrew@sifive.com).
Based on MIPS target.
riscv_reloc_type_lookup (bfd *, bfd_reloc_code_real_type);
extern reloc_howto_type *
-riscv_elf_rtype_to_howto (unsigned int r_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;
+ void (*get_default_version) (const char *,
+ unsigned int *,
+ unsigned int *);
+} 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 *);
+
+extern char *
+riscv_arch_str (unsigned, const riscv_subset_list_t *);
+
+extern size_t
+riscv_estimate_digit (unsigned);
+
+/* ISA extension name class. E.g. "zbb" corresponds to RV_ISA_CLASS_Z,
+ "xargs" corresponds to RV_ISA_CLASS_X, etc. Order is important
+ here. */
+
+typedef enum riscv_isa_ext_class
+ {
+ RV_ISA_CLASS_S,
+ RV_ISA_CLASS_Z,
+ RV_ISA_CLASS_X,
+ RV_ISA_CLASS_UNKNOWN
+ } riscv_isa_ext_class_t;
+
+/* Classify the argument 'ext' into one of riscv_isa_ext_class_t. */
+
+riscv_isa_ext_class_t
+riscv_get_prefix_class (const char *);