1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
|
/* BFD back-end for Motorola 88000 COFF "Binary Compatibility Standard" files.
Copyright (C) 1990-2016 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#define M88 1 /* Customize various include files */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "coff/m88k.h"
#include "coff/internal.h"
#include "libcoff.h"
static bfd_reloc_status_type m88k_special_reloc
(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
#define GET_SCNHDR_NRELOC H_GET_32
#define GET_SCNHDR_NLNNO H_GET_32
/* On coff-m88k, local labels start with '@'. */
#define coff_bfd_is_local_label_name m88k_is_local_label_name
static bfd_boolean
m88k_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name)
{
return name[0] == '@';
}
static bfd_reloc_status_type
m88k_special_reloc (bfd *abfd,
arelent *reloc_entry,
asymbol *symbol,
void * data,
asection *input_section,
bfd *output_bfd,
char **error_message ATTRIBUTE_UNUSED)
{
reloc_howto_type *howto = reloc_entry->howto;
switch (howto->type)
{
case R_HVRT16:
case R_LVRT16:
if (output_bfd != (bfd *) NULL)
{
/* This is a partial relocation, and we want to apply the
relocation to the reloc entry rather than the raw data.
Modify the reloc inplace to reflect what we now know. */
reloc_entry->address += input_section->output_offset;
}
else
{
bfd_vma output_base = 0;
bfd_vma addr = reloc_entry->address;
bfd_vma x = bfd_get_16 (abfd, (bfd_byte *) data + addr);
asection *reloc_target_output_section;
long relocation = 0;
/* Work out which section the relocation is targeted at and the
initial relocation command value. */
/* Get symbol value. (Common symbols are special.) */
if (bfd_is_com_section (symbol->section))
relocation = 0;
else
relocation = symbol->value;
reloc_target_output_section = symbol->section->output_section;
/* Convert input-section-relative symbol value to absolute. */
if (output_bfd)
output_base = 0;
else
output_base = reloc_target_output_section->vma;
relocation += output_base + symbol->section->output_offset;
/* Add in supplied addend. */
relocation += ((reloc_entry->addend << howto->bitsize) + x);
reloc_entry->addend = 0;
relocation >>= (bfd_vma) howto->rightshift;
/* Shift everything up to where it's going to be used */
relocation <<= (bfd_vma) howto->bitpos;
if (relocation)
bfd_put_16 (abfd, (bfd_vma) relocation,
(unsigned char *) data + addr);
}
/* If we are not producing relocatable output, return an error if
the symbol is not defined. */
if (bfd_is_und_section (symbol->section) && output_bfd == (bfd *) NULL)
return bfd_reloc_undefined;
return bfd_reloc_ok;
default:
if (output_bfd != (bfd *) NULL)
{
/* This is a partial relocation, and we want to apply the
relocation to the reloc entry rather than the raw data.
Modify the reloc inplace to reflect what we now know. */
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
break;
}
if (output_bfd == (bfd *) NULL)
return bfd_reloc_continue;
return bfd_reloc_ok;
}
static reloc_howto_type howto_table[] =
{
HOWTO (R_PCR16L, /* type */
02, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
m88k_special_reloc, /* special_function */
"PCR16L", /* name */
FALSE, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
TRUE), /* pcrel_offset */
HOWTO (R_PCR26L, /* type */
02, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
m88k_special_reloc, /* special_function */
"PCR26L", /* name */
FALSE, /* partial_inplace */
0x03ffffff, /* src_mask */
0x03ffffff, /* dst_mask */
TRUE), /* pcrel_offset */
HOWTO (R_VRT16, /* type */
00, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
m88k_special_reloc, /* special_function */
"VRT16", /* name */
FALSE, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
TRUE), /* pcrel_offset */
HOWTO (R_HVRT16, /* type */
16, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
m88k_special_reloc, /* special_function */
"HVRT16", /* name */
FALSE, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
TRUE), /* pcrel_offset */
HOWTO (R_LVRT16, /* type */
00, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
m88k_special_reloc, /* special_function */
"LVRT16", /* name */
FALSE, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
TRUE), /* pcrel_offset */
HOWTO (R_VRT32, /* type */
00, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
m88k_special_reloc, /* special_function */
"VRT32", /* name */
FALSE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
TRUE), /* pcrel_offset */
};
/* Code to turn an external r_type into a pointer to an entry in the
above howto table. */
static void
rtype2howto (arelent *cache_ptr, struct internal_reloc *dst)
{
if (dst->r_type >= R_PCR16L && dst->r_type <= R_VRT32)
{
cache_ptr->howto = howto_table + dst->r_type - R_PCR16L;
}
else
{
BFD_ASSERT (0);
}
}
#define RTYPE2HOWTO(cache_ptr, dst) rtype2howto (cache_ptr, dst)
/* Code to swap in the reloc offset */
#define SWAP_IN_RELOC_OFFSET H_GET_16
#define SWAP_OUT_RELOC_OFFSET H_PUT_16
#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
reloc_processing(relent, reloc, symbols, abfd, section)
static void
reloc_processing (arelent *relent,
struct internal_reloc *reloc,
asymbol **symbols,
bfd *abfd,
asection *section)
{
relent->address = reloc->r_vaddr;
rtype2howto (relent, reloc);
if (((int) reloc->r_symndx) > 0)
{
relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
}
else
{
relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
}
relent->addend = reloc->r_offset;
relent->address -= section->vma;
}
#define BADMAG(x) MC88BADMAG(x)
#ifndef bfd_pe_print_pdata
#define bfd_pe_print_pdata NULL
#endif
#include "coffcode.h"
#undef coff_write_armap
CREATE_BIG_COFF_TARGET_VEC (m88k_coff_bcs_vec, "coff-m88kbcs", 0, 0, '_', NULL, COFF_SWAP_TABLE)
|
