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
  26 extern reloc_howto_type *
  27 riscv_reloc_name_lookup (bfd *, const char *);
  28
  29 extern reloc_howto_type *
  30 riscv_reloc_type_lookup (bfd *, bfd_reloc_code_real_type);
  31
  32 extern reloc_howto_type *
  33 riscv_elf_rtype_to_howto (bfd *, unsigned int r_type);
  34
  35 #define RISCV_DONT_CARE_VERSION -1
  36
  37 /* The information of architecture attribute.  */
  38 struct riscv_subset_t
  39 {
  40   const char *name;
  41   int major_version;
  42   int minor_version;
  43   struct riscv_subset_t *next;
  44 };
  45
  46 typedef struct riscv_subset_t riscv_subset_t;
  47
  48 typedef struct {
  49   riscv_subset_t *head;
  50   riscv_subset_t *tail;
  51 } riscv_subset_list_t;
  52
  53 extern void
  54 riscv_release_subset_list (riscv_subset_list_t *);
  55
  56 extern void
  57 riscv_add_subset (riscv_subset_list_t *,
  58                   const char *,
  59                   int, int);
  60
  61 extern riscv_subset_t *
  62 riscv_lookup_subset (const riscv_subset_list_t *,
  63                      const char *);
  64
  65 extern riscv_subset_t *
  66 riscv_lookup_subset_version (const riscv_subset_list_t *,
  67                              const char *,
  68                              int, int);
  69
  70 typedef struct {
  71   riscv_subset_list_t *subset_list;
  72   void (*error_handler) (const char *,
  73                          ...) ATTRIBUTE_PRINTF_1;
  74   unsigned *xlen;
  75   void (*get_default_version) (const char *,
  76                               unsigned int *,
  77                               unsigned int *);
  78 } riscv_parse_subset_t;
  79
  80 extern bfd_boolean
  81 riscv_parse_subset (riscv_parse_subset_t *,
  82                     const char *);
  83
  84 extern const char *
  85 riscv_supported_std_ext (void);
  86
  87 extern void
  88 riscv_release_subset_list (riscv_subset_list_t *);
  89
  90 extern char *
  91 riscv_arch_str (unsigned, const riscv_subset_list_t *);
  92
  93 extern size_t
  94 riscv_estimate_digit (unsigned);
  95
  96 /* ISA extension name class. E.g. "zbb" corresponds to RV_ISA_CLASS_Z,
  97    "xargs" corresponds to RV_ISA_CLASS_X, etc.  Order is important
  98    here.  */
  99
 100 typedef enum riscv_isa_ext_class
 101   {
 102    RV_ISA_CLASS_S,
 103    RV_ISA_CLASS_Z,
 104    RV_ISA_CLASS_X,
 105    RV_ISA_CLASS_UNKNOWN
 106   } riscv_isa_ext_class_t;
 107
 108 /* Classify the argument 'ext' into one of riscv_isa_ext_class_t.  */
 109
 110 riscv_isa_ext_class_t
 111 riscv_get_prefix_class (const char *);