bfd/elfxx-riscv.h

   1 /* RISC-V ELF specific backend routines.
   2    Copyright (C) 2011-2023 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 #include "cpu-riscv.h"
  27
  28 #define RISCV_UNKNOWN_VERSION -1
  29
  30 struct riscv_elf_params
  31 {
  32   /* Whether to relax code sequences to GP-relative addressing.  */
  33   bool relax_gp;
  34 };
  35
  36 extern void riscv_elf32_set_options (struct bfd_link_info *,
  37                                      struct riscv_elf_params *);
  38 extern void riscv_elf64_set_options (struct bfd_link_info *,
  39                                      struct riscv_elf_params *);
  40
  41 extern reloc_howto_type *
  42 riscv_reloc_name_lookup (bfd *, const char *);
  43
  44 extern reloc_howto_type *
  45 riscv_reloc_type_lookup (bfd *, bfd_reloc_code_real_type);
  46
  47 extern reloc_howto_type *
  48 riscv_elf_rtype_to_howto (bfd *, unsigned int r_type);
  49
  50 /* The information of architecture attribute.  */
  51 struct riscv_subset_t
  52 {
  53   const char *name;
  54   int major_version;
  55   int minor_version;
  56   struct riscv_subset_t *next;
  57 };
  58
  59 typedef struct riscv_subset_t riscv_subset_t;
  60
  61 typedef struct
  62 {
  63   riscv_subset_t *head;
  64   riscv_subset_t *tail;
  65   const char *arch_str;
  66 } riscv_subset_list_t;
  67
  68 extern void
  69 riscv_release_subset_list (riscv_subset_list_t *);
  70
  71 extern void
  72 riscv_add_subset (riscv_subset_list_t *,
  73                   const char *,
  74                   int, int);
  75
  76 extern bool
  77 riscv_lookup_subset (const riscv_subset_list_t *,
  78                      const char *,
  79                      riscv_subset_t **);
  80
  81 typedef struct
  82 {
  83   riscv_subset_list_t *subset_list;
  84   void (*error_handler) (const char *,
  85                          ...) ATTRIBUTE_PRINTF_1;
  86   unsigned *xlen;
  87   enum riscv_spec_class *isa_spec;
  88   bool check_unknown_prefixed_ext;
  89 } riscv_parse_subset_t;
  90
  91 extern bool
  92 riscv_parse_subset (riscv_parse_subset_t *,
  93                     const char *);
  94
  95 extern void
  96 riscv_release_subset_list (riscv_subset_list_t *);
  97
  98 extern char *
  99 riscv_arch_str (unsigned, const riscv_subset_list_t *);
 100
 101 extern size_t
 102 riscv_estimate_digit (unsigned);
 103
 104 extern int
 105 riscv_compare_subsets (const char *, const char *);
 106
 107 extern riscv_subset_list_t *
 108 riscv_copy_subset_list (riscv_subset_list_t *);
 109
 110 extern bool
 111 riscv_update_subset (riscv_parse_subset_t *, const char *);
 112
 113 extern bool
 114 riscv_subset_supports (riscv_parse_subset_t *, const char *);
 115
 116 extern bool
 117 riscv_multi_subset_supports (riscv_parse_subset_t *, enum riscv_insn_class);
 118
 119 extern const char *
 120 riscv_multi_subset_supports_ext (riscv_parse_subset_t *, enum riscv_insn_class);
 121
 122 extern void
 123 bfd_elf32_riscv_set_data_segment_info (struct bfd_link_info *, int *);
 124 extern void
 125 bfd_elf64_riscv_set_data_segment_info (struct bfd_link_info *, int *);