bfd/elfxx-riscv.h

   1 /* RISC-V ELF specific backend routines.
   2    Copyright (C) 2011-2020 Free Software Foundation, Inc.
   3
   4    Contributed by Andrew Waterman (andrew@sifive.com).
   5    Based on MIPS target.
   6
   7    This file is part of BFD, the Binary File Descriptor library.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; see the file COPYING3. If not,
  21    see <http://www.gnu.org/licenses/>.  */
  22
  23 #include "elf/common.h"
  24 #include "elf/internal.h"
  25 #include "opcode/riscv.h"
  26
  27 extern reloc_howto_type *
  28 riscv_reloc_name_lookup (bfd *, const char *);
  29
  30 extern reloc_howto_type *
  31 riscv_reloc_type_lookup (bfd *, bfd_reloc_code_real_type);
  32
  33 extern reloc_howto_type *
  34 riscv_elf_rtype_to_howto (bfd *, unsigned int r_type);
  35
  36 #define RISCV_DONT_CARE_VERSION -1
  37
  38 /* The information of architecture attribute.  */
  39 struct riscv_subset_t
  40 {
  41   const char *name;
  42   int major_version;
  43   int minor_version;
  44   struct riscv_subset_t *next;
  45 };
  46
  47 typedef struct riscv_subset_t riscv_subset_t;
  48
  49 typedef struct
  50 {
  51   riscv_subset_t *head;
  52   riscv_subset_t *tail;
  53 } riscv_subset_list_t;
  54
  55 extern void
  56 riscv_release_subset_list (riscv_subset_list_t *);
  57
  58 extern void
  59 riscv_add_subset (riscv_subset_list_t *,
  60                   const char *,
  61                   int, int);
  62
  63 extern riscv_subset_t *
  64 riscv_lookup_subset (const riscv_subset_list_t *,
  65                      const char *);
  66
  67 extern riscv_subset_t *
  68 riscv_lookup_subset_version (const riscv_subset_list_t *,
  69                              const char *,
  70                              int, int);
  71
  72 typedef struct
  73 {
  74   riscv_subset_list_t *subset_list;
  75   void (*error_handler) (const char *,
  76                          ...) ATTRIBUTE_PRINTF_1;
  77   unsigned *xlen;
  78   void (*get_default_version) (const char *,
  79                                unsigned int *,
  80                                unsigned int *);
  81 } riscv_parse_subset_t;
  82
  83 extern bfd_boolean
  84 riscv_parse_subset (riscv_parse_subset_t *,
  85                     const char *);
  86
  87 extern const char *
  88 riscv_supported_std_ext (void);
  89
  90 extern void
  91 riscv_release_subset_list (riscv_subset_list_t *);
  92
  93 extern char *
  94 riscv_arch_str (unsigned, const riscv_subset_list_t *);
  95
  96 extern size_t
  97 riscv_estimate_digit (unsigned);
  98
  99 /* ISA extension name class. E.g. "zbb" corresponds to RV_ISA_CLASS_Z,
 100    "xargs" corresponds to RV_ISA_CLASS_X, etc.  */
 101
 102 typedef enum riscv_isa_ext_class
 103 {
 104   RV_ISA_CLASS_S,
 105   RV_ISA_CLASS_Z,
 106   RV_ISA_CLASS_X,
 107   RV_ISA_CLASS_UNKNOWN
 108 } riscv_isa_ext_class_t;
 109
 110 riscv_isa_ext_class_t
 111 riscv_get_prefix_class (const char *);
 112
 113 extern int
 114 riscv_get_priv_spec_class (const char *, enum riscv_priv_spec_class *);
 115
 116 extern int
 117 riscv_get_priv_spec_class_from_numbers (unsigned int,
 118                                         unsigned int,
 119                                         unsigned int,
 120                                         enum riscv_priv_spec_class *);
 121
 122 extern const char *
 123 riscv_get_priv_spec_name (enum riscv_priv_spec_class);