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[binutils.git] / bfd / cpu-h8300.c
blob0fd77d64e390eacfc18c0661224e577ef0967abf
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, 2005, 2007 Free Software Foundation, Inc.
4 Hacked by Steve Chamberlain of Cygnus Support.
6 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
23 #include "sysdep.h"
24 #include "bfd.h"
25 #include "libbfd.h"
27 static bfd_boolean
28 h8300_scan (const struct bfd_arch_info *info, const char *string)
30 if (*string != 'h' && *string != 'H')
31 return FALSE;
33 string++;
34 if (*string != '8')
35 return FALSE;
37 string++;
38 if (*string == '/')
39 string++;
41 if (*string != '3')
42 return FALSE;
43 string++;
44 if (*string != '0')
45 return FALSE;
46 string++;
47 if (*string != '0')
48 return FALSE;
49 string++;
50 if (*string == '-')
51 string++;
53 /* In ELF linker scripts, we typically express the architecture/machine
54 as architecture:machine.
56 So if we've matched so far and encounter a colon, try to match the
57 string following the colon. */
58 if (*string == ':')
60 string++;
61 return h8300_scan (info, string);
64 if (*string == 'h' || *string == 'H')
66 string++;
67 if (*string == 'n' || *string == 'N')
68 return (info->mach == bfd_mach_h8300hn);
70 return (info->mach == bfd_mach_h8300h);
72 else if (*string == 's' || *string == 'S')
74 string++;
75 if (*string == 'n' || *string == 'N')
76 return (info->mach == bfd_mach_h8300sn);
78 if (*string == 'x' || *string == 'X')
80 string++;
81 if (*string == 'n' || *string == 'N')
82 return (info->mach == bfd_mach_h8300sxn);
84 return (info->mach == bfd_mach_h8300sx);
87 return (info->mach == bfd_mach_h8300s);
89 else
90 return info->mach == bfd_mach_h8300;
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. */
97 static const bfd_arch_info_type *
98 compatible (const bfd_arch_info_type *in, const bfd_arch_info_type *out)
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)
109 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;
117 static const bfd_arch_info_type h8300sxn_info_struct =
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 */
127 FALSE, /* the default machine */
128 compatible,
129 h8300_scan,
133 static const bfd_arch_info_type h8300sx_info_struct =
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 */
143 FALSE, /* the default machine */
144 compatible,
145 h8300_scan,
146 &h8300sxn_info_struct
149 static const bfd_arch_info_type h8300sn_info_struct =
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. */
159 FALSE, /* The default machine. */
160 compatible,
161 h8300_scan,
162 &h8300sx_info_struct
165 static const bfd_arch_info_type h8300hn_info_struct =
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. */
175 FALSE, /* The default machine. */
176 compatible,
177 h8300_scan,
178 &h8300sn_info_struct
181 static const bfd_arch_info_type h8300s_info_struct =
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. */
191 FALSE, /* The default machine. */
192 compatible,
193 h8300_scan,
194 & h8300hn_info_struct
197 static const bfd_arch_info_type h8300h_info_struct =
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. */
207 FALSE, /* The default machine. */
208 compatible,
209 h8300_scan,
210 &h8300s_info_struct
213 const bfd_arch_info_type bfd_h8300_arch =
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. */
223 TRUE, /* The default machine. */
224 compatible,
225 h8300_scan,
226 &h8300h_info_struct
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. */
232 bfd_vma
233 bfd_h8300_pad_address (bfd *abfd, bfd_vma address)
235 /* Cope with bfd_vma's larger than 32 bits. */
236 address &= 0xffffffffu;
238 switch (bfd_get_mach (abfd))
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;
249 case bfd_mach_h8300h:
250 /* Sign extend a 24-bit address. */
251 if (address >= 0x800000)
252 return address | 0xff000000u;
253 return address;
255 case bfd_mach_h8300s:
256 case bfd_mach_h8300sx:
257 return address;
259 default:
260 abort ();