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/* RISC-V ELF specific backend routines.
Copyright (C) 2011-2020 Free Software Foundation, Inc.
Contributed by Andrew Waterman (andrew@sifive.com).
Based on MIPS target.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING3. If not,
see <http://www.gnu.org/licenses/>. */
#include "elf/common.h"
#include "elf/internal.h"
#include "opcode/riscv.h"
extern reloc_howto_type *
riscv_reloc_name_lookup (bfd *, const char *);
extern reloc_howto_type *
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;
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 *);
extern int
riscv_get_priv_spec_class (const char *, enum riscv_priv_spec_class *);
extern int
riscv_get_priv_spec_class_from_numbers (unsigned int,
unsigned int,
unsigned int,
enum riscv_priv_spec_class *);
extern const char *
riscv_get_priv_spec_name (enum riscv_priv_spec_class);
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