bfd/coff-riscv64.c

   1 /* BFD back-end for RISC-V 64-bit COFF files.
   2    Copyright (C) 2023 Free Software Foundation, Inc.
   3
   4    This file is part of BFD, the Binary File Descriptor library.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  19    MA 02110-1301, USA.  */
  20
  21 #include "sysdep.h"
  22 #include "bfd.h"
  23 #include "libbfd.h"
  24 #include "coff/riscv64.h"
  25 #include "coff/internal.h"
  26 #include "coff/pe.h"
  27 #include "libcoff.h"
  28 #include "libiberty.h"
  29
  30 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER  2
  31
  32 #ifndef bfd_pe_print_pdata
  33 #define bfd_pe_print_pdata      NULL
  34 #endif
  35
  36 #define RTYPE2HOWTO(cache_ptr, dst)             \
  37   (cache_ptr)->howto = NULL
  38
  39 /* Return TRUE if this relocation should
  40    appear in the output .reloc section.  */
  41
  42 static bool
  43 in_reloc_p (bfd *abfd ATTRIBUTE_UNUSED,
  44             reloc_howto_type *howto)
  45 {
  46   return !howto->pc_relative;
  47 }
  48
  49 #include "coffcode.h"
  50
  51 /* Target vectors.  */
  52 const bfd_target
  53 #ifdef TARGET_SYM
  54   TARGET_SYM =
  55 #else
  56   riscv64_coff_vec =
  57 #endif
  58 {
  59 #ifdef TARGET_NAME
  60   TARGET_NAME,
  61 #else
  62  "coff-riscv64-little",         /* Name.  */
  63 #endif
  64   bfd_target_coff_flavour,
  65   BFD_ENDIAN_LITTLE,            /* Data byte order is little.  */
  66   BFD_ENDIAN_LITTLE,            /* Header byte order is little.  */
  67
  68   (HAS_RELOC | EXEC_P           /* Object flags.  */
  69    | HAS_LINENO | HAS_DEBUG
  70    | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS),
  71
  72   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* Section flags.  */
  73 #if defined(COFF_WITH_PE)
  74    | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY | SEC_DEBUGGING
  75 #endif
  76    | SEC_CODE | SEC_DATA | SEC_EXCLUDE ),
  77
  78 #ifdef TARGET_UNDERSCORE
  79   TARGET_UNDERSCORE,            /* Leading underscore.  */
  80 #else
  81   0,                            /* Leading underscore.  */
  82 #endif
  83   '/',                          /* Ar_pad_char.  */
  84   15,                           /* Ar_max_namelen.  */
  85   0,                            /* match priority.  */
  86   TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols.  */
  87
  88      /* Data conversion functions.  */
  89      bfd_getl64, bfd_getl_signed_64, bfd_putl64,
  90      bfd_getl32, bfd_getl_signed_32, bfd_putl32,
  91      bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data.  */
  92      /* Header conversion functions.  */
  93      bfd_getl64, bfd_getl_signed_64, bfd_putl64,
  94      bfd_getl32, bfd_getl_signed_32, bfd_putl32,
  95      bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Hdrs.  */
  96
  97   /* Note that we allow an object file to be treated as a core file as well.  */
  98   {                             /* bfd_check_format.  */
  99     _bfd_dummy_target,
 100     coff_object_p,
 101     bfd_generic_archive_p,
 102     coff_object_p
 103   },
 104   {                             /* bfd_set_format.  */
 105     _bfd_bool_bfd_false_error,
 106     coff_mkobject,
 107     _bfd_generic_mkarchive,
 108     _bfd_bool_bfd_false_error
 109   },
 110   {                             /* bfd_write_contents.  */
 111     _bfd_bool_bfd_false_error,
 112     coff_write_object_contents,
 113     _bfd_write_archive_contents,
 114     _bfd_bool_bfd_false_error
 115   },
 116
 117   BFD_JUMP_TABLE_GENERIC (coff),
 118   BFD_JUMP_TABLE_COPY (coff),
 119   BFD_JUMP_TABLE_CORE (_bfd_nocore),
 120   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 121   BFD_JUMP_TABLE_SYMBOLS (coff),
 122   BFD_JUMP_TABLE_RELOCS (coff),
 123   BFD_JUMP_TABLE_WRITE (coff),
 124   BFD_JUMP_TABLE_LINK (coff),
 125   BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
 126
 127   NULL,
 128
 129   COFF_SWAP_TABLE
 130 };