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
|
/* BFD back-end for TMS320C30 coff binaries.
Copyright (C) 1998-2020 Free Software Foundation, Inc.
Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au)
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. */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "bfdlink.h"
#include "coff/tic30.h"
#include "coff/internal.h"
#include "libcoff.h"
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)
reloc_howto_type tic30_coff_howto_table[] =
{
HOWTO (R_TIC30_ABS16, 2, 1, 16, FALSE, 0, 0, NULL,
"16", FALSE, 0x0000FFFF, 0x0000FFFF, FALSE),
HOWTO (R_TIC30_ABS24, 2, 2, 24, FALSE, 8, complain_overflow_bitfield, NULL,
"24", FALSE, 0xFFFFFF00, 0xFFFFFF00, FALSE),
HOWTO (R_TIC30_LDP, 18, 0, 24, FALSE, 0, complain_overflow_bitfield, NULL,
"LDP", FALSE, 0x00FF0000, 0x000000FF, FALSE),
HOWTO (R_TIC30_ABS32, 2, 2, 32, FALSE, 0, complain_overflow_bitfield, NULL,
"32", FALSE, 0xFFFFFFFF, 0xFFFFFFFF, FALSE),
HOWTO (R_TIC30_PC16, 2, 1, 16, TRUE, 0, complain_overflow_signed, NULL,
"PCREL", FALSE, 0x0000FFFF, 0x0000FFFF, FALSE),
EMPTY_HOWTO (-1)
};
#ifndef coff_bfd_reloc_type_lookup
#define coff_bfd_reloc_type_lookup tic30_coff_reloc_type_lookup
#define coff_bfd_reloc_name_lookup tic30_coff_reloc_name_lookup
/* For the case statement use the code values used in tc_gen_reloc to
map to the howto table entries that match those in both the aout
and coff implementations. */
static reloc_howto_type *
tic30_coff_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
switch (code)
{
case BFD_RELOC_8:
case BFD_RELOC_TIC30_LDP:
return &tic30_coff_howto_table[2];
case BFD_RELOC_16:
return &tic30_coff_howto_table[0];
case BFD_RELOC_24:
return &tic30_coff_howto_table[1];
case BFD_RELOC_16_PCREL:
return &tic30_coff_howto_table[4];
case BFD_RELOC_32:
return &tic30_coff_howto_table[3];
default:
return (reloc_howto_type *) NULL;
}
}
static reloc_howto_type *
tic30_coff_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
const char *r_name)
{
unsigned int i;
for (i = 0;
i < (sizeof (tic30_coff_howto_table)
/ sizeof (tic30_coff_howto_table[0]));
i++)
if (tic30_coff_howto_table[i].name != NULL
&& strcasecmp (tic30_coff_howto_table[i].name, r_name) == 0)
return &tic30_coff_howto_table[i];
return NULL;
}
#endif
/* Turn a howto into a reloc number. */
static int
coff_tic30_select_reloc (reloc_howto_type *howto)
{
return howto->type;
}
#define SELECT_RELOC(x,howto) x.r_type = coff_tic30_select_reloc(howto)
#define BADMAG(x) TIC30BADMAG(x)
#define TIC30 1 /* Customize coffcode.h */
#define __A_MAGIC_SET__
/* Code to swap in the reloc */
#define SWAP_IN_RELOC_OFFSET H_GET_32
#define SWAP_OUT_RELOC_OFFSET H_PUT_32
#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) dst->r_stuff[0] = 'S'; \
dst->r_stuff[1] = 'C';
/* Code to turn a r_type into a howto ptr, uses the above howto table. */
static void
rtype2howto (arelent *internal, struct internal_reloc *dst)
{
switch (dst->r_type)
{
case R_TIC30_ABS16:
internal->howto = &tic30_coff_howto_table[0];
break;
case R_TIC30_ABS24:
internal->howto = &tic30_coff_howto_table[1];
break;
case R_TIC30_ABS32:
internal->howto = &tic30_coff_howto_table[3];
break;
case R_TIC30_LDP:
internal->howto = &tic30_coff_howto_table[2];
break;
case R_TIC30_PC16:
internal->howto = &tic30_coff_howto_table[4];
break;
default:
internal->howto = NULL;
break;
}
}
#define RTYPE2HOWTO(internal, relocentry) rtype2howto (internal, relocentry)
/* Perform any necessary magic to the addend in a reloc entry */
#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
cache_ptr->addend = ext_reloc.r_offset;
#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 (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;
}
#ifndef bfd_pe_print_pdata
#define bfd_pe_print_pdata NULL
#endif
#include "coffcode.h"
const bfd_target tic30_coff_vec =
{
"coff-tic30", /* name */
bfd_target_coff_flavour,
BFD_ENDIAN_BIG, /* data byte order is big */
BFD_ENDIAN_LITTLE, /* header byte order is little */
(HAS_RELOC | EXEC_P /* object flags */
| HAS_LINENO | HAS_DEBUG
| HAS_SYMS | HAS_LOCALS | WP_TEXT),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
'_', /* leading symbol underscore */
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
{ /* bfd_check_format */
_bfd_dummy_target,
coff_object_p,
bfd_generic_archive_p,
_bfd_dummy_target
},
{ /* bfd_set_format */
_bfd_bool_bfd_false_error,
coff_mkobject,
_bfd_generic_mkarchive,
_bfd_bool_bfd_false_error
},
{ /* bfd_write_contents */
_bfd_bool_bfd_false_error,
coff_write_object_contents,
_bfd_write_archive_contents,
_bfd_bool_bfd_false_error
},
BFD_JUMP_TABLE_GENERIC (coff),
BFD_JUMP_TABLE_COPY (coff),
BFD_JUMP_TABLE_CORE (_bfd_nocore),
BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
BFD_JUMP_TABLE_SYMBOLS (coff),
BFD_JUMP_TABLE_RELOCS (coff),
BFD_JUMP_TABLE_WRITE (coff),
BFD_JUMP_TABLE_LINK (coff),
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
NULL,
COFF_SWAP_TABLE
};
|
