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   riscv_subset_t *head;
  51   riscv_subset_t *tail;
  52 } riscv_subset_list_t;
  53
  54 extern void
  55 riscv_release_subset_list (riscv_subset_list_t *);
  56
  57 extern void
  58 riscv_add_subset (riscv_subset_list_t *,
  59                   const char *,
  60                   int, int);
  61
  62 extern riscv_subset_t *
  63 riscv_lookup_subset (const riscv_subset_list_t *,
  64                      const char *);
  65
  66 extern riscv_subset_t *
  67 riscv_lookup_subset_version (const riscv_subset_list_t *,
  68                              const char *,
  69                              int, int);
  70
  71 typedef struct {
  72   riscv_subset_list_t *subset_list;
  73   void (*error_handler) (const char *,
  74                          ...) ATTRIBUTE_PRINTF_1;
  75   unsigned *xlen;
  76   void (*get_default_version) (const char *,
  77                               unsigned int *,
  78                               unsigned int *);
  79 } riscv_parse_subset_t;
  80
  81 extern bfd_boolean
  82 riscv_parse_subset (riscv_parse_subset_t *,
  83                     const char *);
  84
  85 extern const char *
  86 riscv_supported_std_ext (void);
  87
  88 extern void
  89 riscv_release_subset_list (riscv_subset_list_t *);
  90
  91 extern char *
  92 riscv_arch_str (unsigned, const riscv_subset_list_t *);
  93
  94 extern size_t
  95 riscv_estimate_digit (unsigned);
  96
  97 /* ISA extension name class. E.g. "zbb" corresponds to RV_ISA_CLASS_Z,
  98    "xargs" corresponds to RV_ISA_CLASS_X, etc.  Order is important
  99    here.  */
 100
 101 typedef enum riscv_isa_ext_class
 102   {
 103    RV_ISA_CLASS_S,
 104    RV_ISA_CLASS_Z,
 105    RV_ISA_CLASS_X,
 106    RV_ISA_CLASS_UNKNOWN
 107   } riscv_isa_ext_class_t;
 108
 109 /* Classify the argument 'ext' into one of riscv_isa_ext_class_t.  */
 110
 111 riscv_isa_ext_class_t
 112 riscv_get_prefix_class (const char *);
 113
 114 extern int
 115 riscv_get_priv_spec_class (const char *, enum riscv_priv_spec_class *);
 116
 117 extern int
 118 riscv_get_priv_spec_class_from_numbers (unsigned int,
 119                                         unsigned int,
 120                                         unsigned int,
 121                                         enum riscv_priv_spec_class *);
 122
 123 extern const char *
 124 riscv_get_priv_spec_name (enum riscv_priv_spec_class);