1 /* BFD library support routines for the Renesas H8/300 architecture.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 2000, 2001, 2002,
3 2003, 2004 Free Software Foundation, Inc.
4 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 2 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,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 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, MA 02110-1301, USA. */
21
22 #include "bfd.h"
23 #include "sysdep.h"
24 #include "libbfd.h"
25
26 static bfd_boolean
h8300_scan(const struct bfd_arch_info * info,const char * string)27 h8300_scan (const struct bfd_arch_info *info, const char *string)
28 {
29 if (*string != 'h' && *string != 'H')
30 return FALSE;
31
32 string++;
33 if (*string != '8')
34 return FALSE;
35
36 string++;
37 if (*string == '/')
38 string++;
39
40 if (*string != '3')
41 return FALSE;
42 string++;
43 if (*string != '0')
44 return FALSE;
45 string++;
46 if (*string != '0')
47 return FALSE;
48 string++;
49 if (*string == '-')
50 string++;
51
52 /* In ELF linker scripts, we typically express the architecture/machine
53 as architecture:machine.
54
55 So if we've matched so far and encounter a colon, try to match the
56 string following the colon. */
57 if (*string == ':')
58 {
59 string++;
60 return h8300_scan (info, string);
61 }
62
63 if (*string == 'h' || *string == 'H')
64 {
65 string++;
66 if (*string == 'n' || *string == 'N')
67 return (info->mach == bfd_mach_h8300hn);
68
69 return (info->mach == bfd_mach_h8300h);
70 }
71 else if (*string == 's' || *string == 'S')
72 {
73 string++;
74 if (*string == 'n' || *string == 'N')
75 return (info->mach == bfd_mach_h8300sn);
76
77 if (*string == 'x' || *string == 'X')
78 {
79 string++;
80 if (*string == 'n' || *string == 'N')
81 return (info->mach == bfd_mach_h8300sxn);
82
83 return (info->mach == bfd_mach_h8300sx);
84 }
85
86 return (info->mach == bfd_mach_h8300s);
87 }
88 else
89 return info->mach == bfd_mach_h8300;
90 }
91
92 /* This routine is provided two arch_infos and works out the machine
93 which would be compatible with both and returns a pointer to its
94 info structure. */
95
96 static const bfd_arch_info_type *
compatible(const bfd_arch_info_type * in,const bfd_arch_info_type * out)97 compatible (const bfd_arch_info_type *in, const bfd_arch_info_type *out)
98 {
99 if (in->arch != out->arch)
100 return 0;
101 if (in->mach == bfd_mach_h8300sx && out->mach == bfd_mach_h8300s)
102 return in;
103 if (in->mach == bfd_mach_h8300s && out->mach == bfd_mach_h8300sx)
104 return out;
105 if (in->mach == bfd_mach_h8300sxn && out->mach == bfd_mach_h8300sn)
106 return in;
107 if (in->mach == bfd_mach_h8300sn && out->mach == bfd_mach_h8300sxn)
108 return out;
109 /* It's really not a good idea to mix and match modes. */
110 if (in->mach != out->mach)
111 return 0;
112 else
113 return in;
114 }
115
116 static const bfd_arch_info_type h8300sxn_info_struct =
117 {
118 32, /* 32 bits in a word */
119 16, /* 16 bits in an address */
120 8, /* 8 bits in a byte */
121 bfd_arch_h8300,
122 bfd_mach_h8300sxn,
123 "h8300sxn", /* arch_name */
124 "h8300sxn", /* printable name */
125 1,
126 FALSE, /* the default machine */
127 compatible,
128 h8300_scan,
129 0
130 };
131
132 static const bfd_arch_info_type h8300sx_info_struct =
133 {
134 32, /* 32 bits in a word */
135 32, /* 32 bits in an address */
136 8, /* 8 bits in a byte */
137 bfd_arch_h8300,
138 bfd_mach_h8300sx,
139 "h8300sx", /* arch_name */
140 "h8300sx", /* printable name */
141 1,
142 FALSE, /* the default machine */
143 compatible,
144 h8300_scan,
145 &h8300sxn_info_struct
146 };
147
148 static const bfd_arch_info_type h8300sn_info_struct =
149 {
150 32, /* 32 bits in a word. */
151 16, /* 16 bits in an address. */
152 8, /* 8 bits in a byte. */
153 bfd_arch_h8300,
154 bfd_mach_h8300sn,
155 "h8300sn", /* Architecture name. */
156 "h8300sn", /* Printable name. */
157 1,
158 FALSE, /* The default machine. */
159 compatible,
160 h8300_scan,
161 &h8300sx_info_struct
162 };
163
164 static const bfd_arch_info_type h8300hn_info_struct =
165 {
166 32, /* 32 bits in a word. */
167 16, /* 16 bits in an address. */
168 8, /* 8 bits in a byte. */
169 bfd_arch_h8300,
170 bfd_mach_h8300hn,
171 "h8300hn", /* Architecture name. */
172 "h8300hn", /* Printable name. */
173 1,
174 FALSE, /* The default machine. */
175 compatible,
176 h8300_scan,
177 &h8300sn_info_struct
178 };
179
180 static const bfd_arch_info_type h8300s_info_struct =
181 {
182 32, /* 32 bits in a word. */
183 32, /* 32 bits in an address. */
184 8, /* 8 bits in a byte. */
185 bfd_arch_h8300,
186 bfd_mach_h8300s,
187 "h8300s", /* Architecture name. */
188 "h8300s", /* Printable name. */
189 1,
190 FALSE, /* The default machine. */
191 compatible,
192 h8300_scan,
193 & h8300hn_info_struct
194 };
195
196 static const bfd_arch_info_type h8300h_info_struct =
197 {
198 32, /* 32 bits in a word. */
199 32, /* 32 bits in an address. */
200 8, /* 8 bits in a byte. */
201 bfd_arch_h8300,
202 bfd_mach_h8300h,
203 "h8300h", /* Architecture name. */
204 "h8300h", /* Printable name. */
205 1,
206 FALSE, /* The default machine. */
207 compatible,
208 h8300_scan,
209 &h8300s_info_struct
210 };
211
212 const bfd_arch_info_type bfd_h8300_arch =
213 {
214 16, /* 16 bits in a word. */
215 16, /* 16 bits in an address. */
216 8, /* 8 bits in a byte. */
217 bfd_arch_h8300,
218 bfd_mach_h8300,
219 "h8300", /* Architecture name. */
220 "h8300", /* Printable name. */
221 1,
222 TRUE, /* The default machine. */
223 compatible,
224 h8300_scan,
225 &h8300h_info_struct
226 };
227
228 /* Pad the given address to 32 bits, converting 16-bit and 24-bit
229 addresses into the values they would have had on a h8s target. */
230
231 bfd_vma
bfd_h8300_pad_address(bfd * abfd,bfd_vma address)232 bfd_h8300_pad_address (bfd *abfd, bfd_vma address)
233 {
234 /* Cope with bfd_vma's larger than 32 bits. */
235 address &= 0xffffffffu;
236
237 switch (bfd_get_mach (abfd))
238 {
239 case bfd_mach_h8300:
240 case bfd_mach_h8300hn:
241 case bfd_mach_h8300sn:
242 case bfd_mach_h8300sxn:
243 /* Sign extend a 16-bit address. */
244 if (address >= 0x8000)
245 return address | 0xffff0000u;
246 return address;
247
248 case bfd_mach_h8300h:
249 /* Sign extend a 24-bit address. */
250 if (address >= 0x800000)
251 return address | 0xff000000u;
252 return address;
253
254 case bfd_mach_h8300s:
255 case bfd_mach_h8300sx:
256 return address;
257
258 default:
259 abort ();
260 }
261 }
262