1 /* BFD back-end for LoongArch64 COFF files.
2 Copyright (C) 2022-2023 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
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 };