1 /* BFD back-end for LoongArch64 COFF files.
2 Copyright (C) 2022-2024 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 #include "sysdep.h"
27 #include "bfd.h"
28 #include "libbfd.h"
29 #include "coff/loongarch64.h"
30 #include "coff/internal.h"
31 #include "coff/pe.h"
32 #include "libcoff.h"
33 #include "libiberty.h"
34
35 /* The page size is a guess based on ELF. */
36
37 #define COFF_PAGE_SIZE 0x4000
38
39 /* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */
40 #define OCTETS_PER_BYTE(ABFD, SEC) 1
41
42 #ifndef PCRELOFFSET
43 #define PCRELOFFSET true
44 #endif
45
46 /* Currently we don't handle any relocations. */
47 static reloc_howto_type pe_loongarch64_std_reloc_howto[] =
48 {
49
50 };
51
52 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 2
53
54 #ifndef NUM_ELEM
55 #define NUM_ELEM(a) ((sizeof (a)) / sizeof ((a)[0]))
56 #endif
57
58 #define NUM_RELOCS NUM_ELEM (pe_loongarch64_std_reloc_howto)
59
60 #define RTYPE2HOWTO(cache_ptr, dst) \
61 (cache_ptr)->howto = NULL
62
63 #ifndef bfd_pe_print_pdata
64 #define bfd_pe_print_pdata NULL
65 #endif
66
67 /* Handle include/coff/loongarch64.h external_reloc. */
68 #define SWAP_IN_RELOC_OFFSET H_GET_32
69 #define SWAP_OUT_RELOC_OFFSET H_PUT_32
70
71 /* Return TRUE if this relocation should
72 appear in the output .reloc section. */
73
74 static bool
in_reloc_p(bfd * abfd ATTRIBUTE_UNUSED,reloc_howto_type * howto)75 in_reloc_p (bfd * abfd ATTRIBUTE_UNUSED,
76 reloc_howto_type * howto)
77 {
78 return !howto->pc_relative;
79 }
80
81 #include "coffcode.h"
82
83 /* Target vectors. */
84 const bfd_target
85 #ifdef TARGET_SYM
86 TARGET_SYM =
87 #else
88 loongarch64_pei_vec =
89 #endif
90 {
91 #ifdef TARGET_NAME
92 TARGET_NAME,
93 #else
94 "pei-loongarch64", /* Name. */
95 #endif
96 bfd_target_coff_flavour,
97 BFD_ENDIAN_LITTLE, /* Data byte order is little. */
98 BFD_ENDIAN_LITTLE, /* Header byte order is little. */
99
100 (HAS_RELOC | EXEC_P /* Object flags. */
101 | HAS_LINENO | HAS_DEBUG
102 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS),
103
104 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* Section flags. */
105 #if defined(COFF_WITH_PE)
106 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY | SEC_DEBUGGING
107 #endif
108 | SEC_CODE | SEC_DATA | SEC_EXCLUDE ),
109
110 #ifdef TARGET_UNDERSCORE
111 TARGET_UNDERSCORE, /* Leading underscore. */
112 #else
113 0, /* Leading underscore. */
114 #endif
115 '/', /* Ar_pad_char. */
116 15, /* Ar_max_namelen. */
117 0, /* match priority. */
118 TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
119
120 /* Data conversion functions. */
121 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
122 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
123 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */
124 /* Header conversion functions. */
125 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
126 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
127 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Hdrs. */
128
129 /* Note that we allow an object file to be treated as a core file as well. */
130 { /* bfd_check_format. */
131 _bfd_dummy_target,
132 coff_object_p,
133 bfd_generic_archive_p,
134 coff_object_p
135 },
136 { /* bfd_set_format. */
137 _bfd_bool_bfd_false_error,
138 coff_mkobject,
139 _bfd_generic_mkarchive,
140 _bfd_bool_bfd_false_error
141 },
142 { /* bfd_write_contents. */
143 _bfd_bool_bfd_false_error,
144 coff_write_object_contents,
145 _bfd_write_archive_contents,
146 _bfd_bool_bfd_false_error
147 },
148
149 BFD_JUMP_TABLE_GENERIC (coff),
150 BFD_JUMP_TABLE_COPY (coff),
151 BFD_JUMP_TABLE_CORE (_bfd_nocore),
152 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
153 BFD_JUMP_TABLE_SYMBOLS (coff),
154 BFD_JUMP_TABLE_RELOCS (coff),
155 BFD_JUMP_TABLE_WRITE (coff),
156 BFD_JUMP_TABLE_LINK (coff),
157 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
158
159 NULL,
160
161 COFF_SWAP_TABLE
162 };
163