1 /* BFD library support routines for the Renesas H8/300 architecture.
2 Copyright (C) 1990-2016 Free Software Foundation, Inc.
3 Hacked by Steve Chamberlain of Cygnus Support.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
21
22 #include "sysdep.h"
23 #include "bfd.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 bfd_arch_default_fill,
130 0
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 bfd_arch_default_fill,
147 &h8300sxn_info_struct
148 };
149
150 static const bfd_arch_info_type h8300sn_info_struct =
151 {
152 32, /* 32 bits in a word. */
153 16, /* 16 bits in an address. */
154 8, /* 8 bits in a byte. */
155 bfd_arch_h8300,
156 bfd_mach_h8300sn,
157 "h8300sn", /* Architecture name. */
158 "h8300sn", /* Printable name. */
159 1,
160 FALSE, /* The default machine. */
161 compatible,
162 h8300_scan,
163 bfd_arch_default_fill,
164 &h8300sx_info_struct
165 };
166
167 static const bfd_arch_info_type h8300hn_info_struct =
168 {
169 32, /* 32 bits in a word. */
170 16, /* 16 bits in an address. */
171 8, /* 8 bits in a byte. */
172 bfd_arch_h8300,
173 bfd_mach_h8300hn,
174 "h8300hn", /* Architecture name. */
175 "h8300hn", /* Printable name. */
176 1,
177 FALSE, /* The default machine. */
178 compatible,
179 h8300_scan,
180 bfd_arch_default_fill,
181 &h8300sn_info_struct
182 };
183
184 static const bfd_arch_info_type h8300s_info_struct =
185 {
186 32, /* 32 bits in a word. */
187 32, /* 32 bits in an address. */
188 8, /* 8 bits in a byte. */
189 bfd_arch_h8300,
190 bfd_mach_h8300s,
191 "h8300s", /* Architecture name. */
192 "h8300s", /* Printable name. */
193 1,
194 FALSE, /* The default machine. */
195 compatible,
196 h8300_scan,
197 bfd_arch_default_fill,
198 & h8300hn_info_struct
199 };
200
201 static const bfd_arch_info_type h8300h_info_struct =
202 {
203 32, /* 32 bits in a word. */
204 32, /* 32 bits in an address. */
205 8, /* 8 bits in a byte. */
206 bfd_arch_h8300,
207 bfd_mach_h8300h,
208 "h8300h", /* Architecture name. */
209 "h8300h", /* Printable name. */
210 1,
211 FALSE, /* The default machine. */
212 compatible,
213 h8300_scan,
214 bfd_arch_default_fill,
215 &h8300s_info_struct
216 };
217
218 const bfd_arch_info_type bfd_h8300_arch =
219 {
220 16, /* 16 bits in a word. */
221 16, /* 16 bits in an address. */
222 8, /* 8 bits in a byte. */
223 bfd_arch_h8300,
224 bfd_mach_h8300,
225 "h8300", /* Architecture name. */
226 "h8300", /* Printable name. */
227 1,
228 TRUE, /* The default machine. */
229 compatible,
230 h8300_scan,
231 bfd_arch_default_fill,
232 &h8300h_info_struct
233 };
234
235 /* Pad the given address to 32 bits, converting 16-bit and 24-bit
236 addresses into the values they would have had on a h8s target. */
237
238 bfd_vma
bfd_h8300_pad_address(bfd * abfd,bfd_vma address)239 bfd_h8300_pad_address (bfd *abfd, bfd_vma address)
240 {
241 /* Cope with bfd_vma's larger than 32 bits. */
242 address &= 0xffffffffu;
243
244 switch (bfd_get_mach (abfd))
245 {
246 case bfd_mach_h8300:
247 case bfd_mach_h8300hn:
248 case bfd_mach_h8300sn:
249 case bfd_mach_h8300sxn:
250 /* Sign extend a 16-bit address. */
251 if (address >= 0x8000)
252 return address | 0xffff0000u;
253 return address;
254
255 case bfd_mach_h8300h:
256 /* Sign extend a 24-bit address. */
257 if (address >= 0x800000)
258 return address | 0xff000000u;
259 return address;
260
261 case bfd_mach_h8300s:
262 case bfd_mach_h8300sx:
263 return address;
264
265 default:
266 abort ();
267 }
268 }
269