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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [bfd/] [cpu-h8300.c] - Blame information for rev 298

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Line No. Rev Author Line
1 24 jeremybenn
/* BFD library support routines for the Renesas H8/300 architecture.
2
   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 2000, 2001, 2002,
3 225 jeremybenn
   2003, 2004, 2005, 2007 Free Software Foundation, Inc.
4 24 jeremybenn
   Hacked by Steve Chamberlain of Cygnus Support.
5
 
6
   This file is part of BFD, the Binary File Descriptor library.
7
 
8
   This program is free software; you can redistribute it and/or modify
9
   it under the terms of the GNU General Public License as published by
10
   the Free Software Foundation; either version 3 of the License, or
11
   (at your option) any later version.
12
 
13
   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
   GNU General Public License for more details.
17
 
18
   You should have received a copy of the GNU General Public License
19
   along with this program; if not, write to the Free Software
20
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21
   MA 02110-1301, USA.  */
22
 
23
#include "sysdep.h"
24
#include "bfd.h"
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#include "libbfd.h"
26
 
27
static bfd_boolean
28
h8300_scan (const struct bfd_arch_info *info, const char *string)
29
{
30
  if (*string != 'h' && *string != 'H')
31
    return FALSE;
32
 
33
  string++;
34
  if (*string != '8')
35
    return FALSE;
36
 
37
  string++;
38
  if (*string == '/')
39
    string++;
40
 
41
  if (*string != '3')
42
    return FALSE;
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  string++;
44
  if (*string != '0')
45
    return FALSE;
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  string++;
47
  if (*string != '0')
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    return FALSE;
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  string++;
50
  if (*string == '-')
51
    string++;
52
 
53
  /* In ELF linker scripts, we typically express the architecture/machine
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     as architecture:machine.
55
 
56
     So if we've matched so far and encounter a colon, try to match the
57
     string following the colon.  */
58
  if (*string == ':')
59
    {
60
      string++;
61
      return h8300_scan (info, string);
62
    }
63
 
64
  if (*string == 'h' || *string == 'H')
65
    {
66
      string++;
67
      if (*string == 'n' || *string == 'N')
68
        return (info->mach == bfd_mach_h8300hn);
69
 
70
      return (info->mach == bfd_mach_h8300h);
71
    }
72
  else if (*string == 's' || *string == 'S')
73
    {
74
      string++;
75
      if (*string == 'n' || *string == 'N')
76
        return (info->mach == bfd_mach_h8300sn);
77
 
78
      if (*string == 'x' || *string == 'X')
79
        {
80
          string++;
81
          if (*string == 'n' || *string == 'N')
82
            return (info->mach == bfd_mach_h8300sxn);
83
 
84
          return (info->mach == bfd_mach_h8300sx);
85
        }
86
 
87
      return (info->mach == bfd_mach_h8300s);
88
    }
89
  else
90
    return info->mach == bfd_mach_h8300;
91
}
92
 
93
/* This routine is provided two arch_infos and works out the machine
94
   which would be compatible with both and returns a pointer to its
95
   info structure.  */
96
 
97
static const bfd_arch_info_type *
98
compatible (const bfd_arch_info_type *in, const bfd_arch_info_type *out)
99
{
100
  if (in->arch != out->arch)
101
    return 0;
102
  if (in->mach == bfd_mach_h8300sx && out->mach == bfd_mach_h8300s)
103
    return in;
104
  if (in->mach == bfd_mach_h8300s && out->mach == bfd_mach_h8300sx)
105
    return out;
106
  if (in->mach == bfd_mach_h8300sxn && out->mach == bfd_mach_h8300sn)
107
    return in;
108
  if (in->mach == bfd_mach_h8300sn && out->mach == bfd_mach_h8300sxn)
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    return out;
110
  /* It's really not a good idea to mix and match modes.  */
111
  if (in->mach != out->mach)
112
    return 0;
113
  else
114
    return in;
115
}
116
 
117
static const bfd_arch_info_type h8300sxn_info_struct =
118
{
119
  32,                           /* 32 bits in a word */
120
  16,                           /* 16 bits in an address */
121
  8,                            /* 8 bits in a byte */
122
  bfd_arch_h8300,
123
  bfd_mach_h8300sxn,
124
  "h8300sxn",                   /* arch_name  */
125
  "h8300sxn",                   /* printable name */
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  1,
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  FALSE,                        /* the default machine */
128
  compatible,
129
  h8300_scan,
130
 
131
};
132
 
133
static const bfd_arch_info_type h8300sx_info_struct =
134
{
135
  32,                           /* 32 bits in a word */
136
  32,                           /* 32 bits in an address */
137
  8,                            /* 8 bits in a byte */
138
  bfd_arch_h8300,
139
  bfd_mach_h8300sx,
140
  "h8300sx",                    /* arch_name  */
141
  "h8300sx",                    /* printable name */
142
  1,
143
  FALSE,                        /* the default machine */
144
  compatible,
145
  h8300_scan,
146
  &h8300sxn_info_struct
147
};
148
 
149
static const bfd_arch_info_type h8300sn_info_struct =
150
{
151
  32,                           /* 32 bits in a word.  */
152
  16,                           /* 16 bits in an address.  */
153
  8,                            /* 8 bits in a byte.  */
154
  bfd_arch_h8300,
155
  bfd_mach_h8300sn,
156
  "h8300sn",                    /* Architecture name.  */
157
  "h8300sn",                    /* Printable name.  */
158
  1,
159
  FALSE,                        /* The default machine.  */
160
  compatible,
161
  h8300_scan,
162
  &h8300sx_info_struct
163
};
164
 
165
static const bfd_arch_info_type h8300hn_info_struct =
166
{
167
  32,                           /* 32 bits in a word.  */
168
  16,                           /* 16 bits in an address.  */
169
  8,                            /* 8 bits in a byte.  */
170
  bfd_arch_h8300,
171
  bfd_mach_h8300hn,
172
  "h8300hn",                    /* Architecture name.  */
173
  "h8300hn",                    /* Printable name.  */
174
  1,
175
  FALSE,                        /* The default machine.  */
176
  compatible,
177
  h8300_scan,
178
  &h8300sn_info_struct
179
};
180
 
181
static const bfd_arch_info_type h8300s_info_struct =
182
{
183
  32,                           /* 32 bits in a word.  */
184
  32,                           /* 32 bits in an address.  */
185
  8,                            /* 8 bits in a byte.  */
186
  bfd_arch_h8300,
187
  bfd_mach_h8300s,
188
  "h8300s",                     /* Architecture name.  */
189
  "h8300s",                     /* Printable name.  */
190
  1,
191
  FALSE,                        /* The default machine.  */
192
  compatible,
193
  h8300_scan,
194
  & h8300hn_info_struct
195
};
196
 
197
static const bfd_arch_info_type h8300h_info_struct =
198
{
199
  32,                           /* 32 bits in a word.  */
200
  32,                           /* 32 bits in an address.  */
201
  8,                            /* 8 bits in a byte.  */
202
  bfd_arch_h8300,
203
  bfd_mach_h8300h,
204
  "h8300h",                     /* Architecture name.  */
205
  "h8300h",                     /* Printable name.  */
206
  1,
207
  FALSE,                        /* The default machine.  */
208
  compatible,
209
  h8300_scan,
210
  &h8300s_info_struct
211
};
212
 
213
const bfd_arch_info_type bfd_h8300_arch =
214
{
215
  16,                           /* 16 bits in a word.  */
216
  16,                           /* 16 bits in an address.  */
217
  8,                            /* 8 bits in a byte.  */
218
  bfd_arch_h8300,
219
  bfd_mach_h8300,
220
  "h8300",                      /* Architecture name.  */
221
  "h8300",                      /* Printable name.  */
222
  1,
223
  TRUE,                         /* The default machine.  */
224
  compatible,
225
  h8300_scan,
226
  &h8300h_info_struct
227
};
228
 
229
/* Pad the given address to 32 bits, converting 16-bit and 24-bit
230
   addresses into the values they would have had on a h8s target.  */
231
 
232
bfd_vma
233
bfd_h8300_pad_address (bfd *abfd, bfd_vma address)
234
{
235
  /* Cope with bfd_vma's larger than 32 bits.  */
236
  address &= 0xffffffffu;
237
 
238
  switch (bfd_get_mach (abfd))
239
    {
240
    case bfd_mach_h8300:
241
    case bfd_mach_h8300hn:
242
    case bfd_mach_h8300sn:
243
    case bfd_mach_h8300sxn:
244
      /* Sign extend a 16-bit address.  */
245
      if (address >= 0x8000)
246
        return address | 0xffff0000u;
247
      return address;
248
 
249
    case bfd_mach_h8300h:
250
      /* Sign extend a 24-bit address.  */
251
      if (address >= 0x800000)
252
        return address | 0xff000000u;
253
      return address;
254
 
255
    case bfd_mach_h8300s:
256
    case bfd_mach_h8300sx:
257
      return address;
258
 
259
    default:
260
      abort ();
261
    }
262
}

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