Home | History | Annotate | Line # | Download | only in bfd
coff-loongarch64.c revision 1.1.1.1.4.2 
      1 /* BFD back-end for LoongArch64 COFF files.
      2    Copyright (C) 2022 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 
     22 #ifndef COFF_WITH_peLoongArch64
     23 #define COFF_WITH_peLoongArch64
     24 #endif
     25 
     26 /* Note we have to make sure not to include headers twice.
     27    Not all headers are wrapped in #ifdef guards, so we define
     28    PEI_HEADERS to prevent double including here.  */
     29 #ifndef PEI_HEADERS
     30 #include "sysdep.h"
     31 #include "bfd.h"
     32 #include "libbfd.h"
     33 #include "coff/loongarch64.h"
     34 #include "coff/internal.h"
     35 #include "coff/pe.h"
     36 #include "libcoff.h"
     37 #include "libiberty.h"
     38 #endif
     39 
     40 #include "libcoff.h"
     41 
     42 /* The page size is a guess based on ELF.  */
     43 
     44 #define COFF_PAGE_SIZE 0x4000
     45 
     46 /* All users of this file have bfd_octets_per_byte (abfd, sec) == 1.  */
     47 #define OCTETS_PER_BYTE(ABFD, SEC) 1
     48 
     49 #ifndef PCRELOFFSET
     50 #define PCRELOFFSET true
     51 #endif
     52 
     53 /* Currently we don't handle any relocations.  */
     54 static reloc_howto_type pe_loongarch64_std_reloc_howto[] =
     55   {
     56 
     57   };
     58 
     59 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER  2
     60 
     61 #ifndef NUM_ELEM
     62 #define NUM_ELEM(a) ((sizeof (a)) / sizeof ((a)[0]))
     63 #endif
     64 
     65 #define NUM_RELOCS NUM_ELEM (pe_loongarch64_std_reloc_howto)
     66 
     67 #define RTYPE2HOWTO(cache_ptr, dst)             \
     68   (cache_ptr)->howto = NULL
     69 
     70 #ifndef bfd_pe_print_pdata
     71 #define bfd_pe_print_pdata      NULL
     72 #endif
     73 
     74 /* Handle include/coff/loongarch64.h external_reloc.  */
     75 #define SWAP_IN_RELOC_OFFSET	H_GET_32
     76 #define SWAP_OUT_RELOC_OFFSET	H_PUT_32
     77 
     78 /* Return TRUE if this relocation should
     79    appear in the output .reloc section.  */
     80 
     81 static bool
     82 in_reloc_p (bfd * abfd ATTRIBUTE_UNUSED,
     83 	    reloc_howto_type * howto)
     84 {
     85   return !howto->pc_relative;
     86 }
     87 
     88 #include "coffcode.h"
     89 
     90 /* Target vectors.  */
     91 const bfd_target
     92 #ifdef TARGET_SYM
     93   TARGET_SYM =
     94 #else
     95   loongarch64_pei_vec =
     96 #endif
     97 {
     98 #ifdef TARGET_NAME
     99   TARGET_NAME,
    100 #else
    101  "pei-loongarch64",			/* Name.  */
    102 #endif
    103   bfd_target_coff_flavour,
    104   BFD_ENDIAN_LITTLE,		/* Data byte order is little.  */
    105   BFD_ENDIAN_LITTLE,		/* Header byte order is little.  */
    106 
    107   (HAS_RELOC | EXEC_P		/* Object flags.  */
    108    | HAS_LINENO | HAS_DEBUG
    109    | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS),
    110 
    111   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* Section flags.  */
    112 #if defined(COFF_WITH_PE)
    113    | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY | SEC_DEBUGGING
    114 #endif
    115    | SEC_CODE | SEC_DATA | SEC_EXCLUDE ),
    116 
    117 #ifdef TARGET_UNDERSCORE
    118   TARGET_UNDERSCORE,		/* Leading underscore.  */
    119 #else
    120   0,				/* Leading underscore.  */
    121 #endif
    122   '/',				/* Ar_pad_char.  */
    123   15,				/* Ar_max_namelen.  */
    124   0,				/* match priority.  */
    125   TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols.  */
    126 
    127      /* Data conversion functions.  */
    128      bfd_getl64, bfd_getl_signed_64, bfd_putl64,
    129      bfd_getl32, bfd_getl_signed_32, bfd_putl32,
    130      bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data.  */
    131      /* Header conversion functions.  */
    132      bfd_getl64, bfd_getl_signed_64, bfd_putl64,
    133      bfd_getl32, bfd_getl_signed_32, bfd_putl32,
    134      bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Hdrs.  */
    135 
    136   /* Note that we allow an object file to be treated as a core file as well.  */
    137   {				/* bfd_check_format.  */
    138     _bfd_dummy_target,
    139     coff_object_p,
    140     bfd_generic_archive_p,
    141     coff_object_p
    142   },
    143   {				/* bfd_set_format.  */
    144     _bfd_bool_bfd_false_error,
    145     coff_mkobject,
    146     _bfd_generic_mkarchive,
    147     _bfd_bool_bfd_false_error
    148   },
    149   {				/* bfd_write_contents.  */
    150     _bfd_bool_bfd_false_error,
    151     coff_write_object_contents,
    152     _bfd_write_archive_contents,
    153     _bfd_bool_bfd_false_error
    154   },
    155 
    156   BFD_JUMP_TABLE_GENERIC (coff),
    157   BFD_JUMP_TABLE_COPY (coff),
    158   BFD_JUMP_TABLE_CORE (_bfd_nocore),
    159   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
    160   BFD_JUMP_TABLE_SYMBOLS (coff),
    161   BFD_JUMP_TABLE_RELOCS (coff),
    162   BFD_JUMP_TABLE_WRITE (coff),
    163   BFD_JUMP_TABLE_LINK (coff),
    164   BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
    165 
    166   NULL,
    167 
    168   COFF_SWAP_TABLE
    169 };
    170