source: trunk/src/binutils/bfd/elf32-i860.c@ 1917

Last change on this file since 1917 was 610, checked in by bird, 22 years ago

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1/* Intel i860 specific support for 32-bit ELF.
2 Copyright 1993, 1995, 1999, 2000, 2001, 2002
3 Free Software Foundation, Inc.
4
5 Full i860 support contributed by Jason Eckhardt <[email protected]>.
6
7This file is part of BFD, the Binary File Descriptor library.
8
9This program is free software; you can redistribute it and/or modify
10it under the terms of the GNU General Public License as published by
11the Free Software Foundation; either version 2 of the License, or
12(at your option) any later version.
13
14This program is distributed in the hope that it will be useful,
15but WITHOUT ANY WARRANTY; without even the implied warranty of
16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17GNU General Public License for more details.
18
19You should have received a copy of the GNU General Public License
20along with this program; if not, write to the Free Software
21Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22
23#include "bfd.h"
24#include "sysdep.h"
25#include "libbfd.h"
26#include "elf-bfd.h"
27#include "elf/i860.h"
28
29/* Prototypes. */
30static reloc_howto_type *lookup_howto
31 PARAMS ((unsigned int));
32
33static reloc_howto_type *elf32_i860_reloc_type_lookup
34 PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
35
36static void elf32_i860_info_to_howto_rela
37 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
38
39static bfd_reloc_status_type elf32_i860_relocate_splitn
40 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
41
42static bfd_reloc_status_type elf32_i860_relocate_pc16
43 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
44
45static bfd_reloc_status_type elf32_i860_relocate_pc26
46 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
47
48static bfd_reloc_status_type elf32_i860_relocate_highadj
49 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
50
51static bfd_boolean elf32_i860_relocate_section
52 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
53 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
54
55static bfd_reloc_status_type i860_final_link_relocate
56 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
57 Elf_Internal_Rela *, bfd_vma));
58
59static bfd_boolean elf32_i860_is_local_label_name
60 PARAMS ((bfd *, const char *));
61
62/* This howto table is preliminary. */
63static reloc_howto_type elf32_i860_howto_table [] =
64{
65 /* This relocation does nothing. */
66 HOWTO (R_860_NONE, /* type */
67 0, /* rightshift */
68 2, /* size (0 = byte, 1 = short, 2 = long) */
69 32, /* bitsize */
70 FALSE, /* pc_relative */
71 0, /* bitpos */
72 complain_overflow_bitfield, /* complain_on_overflow */
73 bfd_elf_generic_reloc, /* special_function */
74 "R_860_NONE", /* name */
75 FALSE, /* partial_inplace */
76 0, /* src_mask */
77 0, /* dst_mask */
78 FALSE), /* pcrel_offset */
79
80 /* A 32-bit absolute relocation. */
81 HOWTO (R_860_32, /* type */
82 0, /* rightshift */
83 2, /* size (0 = byte, 1 = short, 2 = long) */
84 32, /* bitsize */
85 FALSE, /* pc_relative */
86 0, /* bitpos */
87 complain_overflow_bitfield, /* complain_on_overflow */
88 bfd_elf_generic_reloc, /* special_function */
89 "R_860_32", /* name */
90 FALSE, /* partial_inplace */
91 0xffffffff, /* src_mask */
92 0xffffffff, /* dst_mask */
93 FALSE), /* pcrel_offset */
94
95 HOWTO (R_860_COPY, /* type */
96 0, /* rightshift */
97 2, /* size (0 = byte, 1 = short, 2 = long) */
98 32, /* bitsize */
99 FALSE, /* pc_relative */
100 0, /* bitpos */
101 complain_overflow_bitfield, /* complain_on_overflow */
102 bfd_elf_generic_reloc, /* special_function */
103 "R_860_COPY", /* name */
104 TRUE, /* partial_inplace */
105 0xffffffff, /* src_mask */
106 0xffffffff, /* dst_mask */
107 FALSE), /* pcrel_offset */
108
109 HOWTO (R_860_GLOB_DAT, /* type */
110 0, /* rightshift */
111 2, /* size (0 = byte, 1 = short, 2 = long) */
112 32, /* bitsize */
113 FALSE, /* pc_relative */
114 0, /* bitpos */
115 complain_overflow_bitfield, /* complain_on_overflow */
116 bfd_elf_generic_reloc, /* special_function */
117 "R_860_GLOB_DAT", /* name */
118 TRUE, /* partial_inplace */
119 0xffffffff, /* src_mask */
120 0xffffffff, /* dst_mask */
121 FALSE), /* pcrel_offset */
122
123 HOWTO (R_860_JUMP_SLOT, /* type */
124 0, /* rightshift */
125 2, /* size (0 = byte, 1 = short, 2 = long) */
126 32, /* bitsize */
127 FALSE, /* pc_relative */
128 0, /* bitpos */
129 complain_overflow_bitfield, /* complain_on_overflow */
130 bfd_elf_generic_reloc, /* special_function */
131 "R_860_JUMP_SLOT", /* name */
132 TRUE, /* partial_inplace */
133 0xffffffff, /* src_mask */
134 0xffffffff, /* dst_mask */
135 FALSE), /* pcrel_offset */
136
137 HOWTO (R_860_RELATIVE, /* type */
138 0, /* rightshift */
139 2, /* size (0 = byte, 1 = short, 2 = long) */
140 32, /* bitsize */
141 FALSE, /* pc_relative */
142 0, /* bitpos */
143 complain_overflow_bitfield, /* complain_on_overflow */
144 bfd_elf_generic_reloc, /* special_function */
145 "R_860_RELATIVE", /* name */
146 TRUE, /* partial_inplace */
147 0xffffffff, /* src_mask */
148 0xffffffff, /* dst_mask */
149 FALSE), /* pcrel_offset */
150
151 /* A 26-bit PC-relative relocation. */
152 HOWTO (R_860_PC26, /* type */
153 2, /* rightshift */
154 2, /* size (0 = byte, 1 = short, 2 = long) */
155 26, /* bitsize */
156 TRUE, /* pc_relative */
157 0, /* bitpos */
158 complain_overflow_bitfield, /* complain_on_overflow */
159 bfd_elf_generic_reloc, /* special_function */
160 "R_860_PC26", /* name */
161 FALSE, /* partial_inplace */
162 0x3ffffff, /* src_mask */
163 0x3ffffff, /* dst_mask */
164 TRUE), /* pcrel_offset */
165
166 HOWTO (R_860_PLT26, /* type */
167 0, /* rightshift */
168 2, /* size (0 = byte, 1 = short, 2 = long) */
169 26, /* bitsize */
170 TRUE, /* pc_relative */
171 0, /* bitpos */
172 complain_overflow_bitfield, /* complain_on_overflow */
173 bfd_elf_generic_reloc, /* special_function */
174 "R_860_PLT26", /* name */
175 TRUE, /* partial_inplace */
176 0xffffffff, /* src_mask */
177 0xffffffff, /* dst_mask */
178 TRUE), /* pcrel_offset */
179
180 /* A 16-bit PC-relative relocation. */
181 HOWTO (R_860_PC16, /* type */
182 2, /* rightshift */
183 2, /* size (0 = byte, 1 = short, 2 = long) */
184 16, /* bitsize */
185 TRUE, /* pc_relative */
186 0, /* bitpos */
187 complain_overflow_bitfield, /* complain_on_overflow */
188 bfd_elf_generic_reloc, /* special_function */
189 "R_860_PC16", /* name */
190 FALSE, /* partial_inplace */
191 0x1f07ff, /* src_mask */
192 0x1f07ff, /* dst_mask */
193 TRUE), /* pcrel_offset */
194
195 HOWTO (R_860_LOW0, /* type */
196 0, /* rightshift */
197 2, /* size (0 = byte, 1 = short, 2 = long) */
198 16, /* bitsize */
199 FALSE, /* pc_relative */
200 0, /* bitpos */
201 complain_overflow_dont, /* complain_on_overflow */
202 bfd_elf_generic_reloc, /* special_function */
203 "R_860_LOW0", /* name */
204 FALSE, /* partial_inplace */
205 0xffff, /* src_mask */
206 0xffff, /* dst_mask */
207 FALSE), /* pcrel_offset */
208
209 HOWTO (R_860_SPLIT0, /* type */
210 0, /* rightshift */
211 2, /* size (0 = byte, 1 = short, 2 = long) */
212 16, /* bitsize */
213 FALSE, /* pc_relative */
214 0, /* bitpos */
215 complain_overflow_dont, /* complain_on_overflow */
216 bfd_elf_generic_reloc, /* special_function */
217 "R_860_SPLIT0", /* name */
218 FALSE, /* partial_inplace */
219 0x1f07ff, /* src_mask */
220 0x1f07ff, /* dst_mask */
221 FALSE), /* pcrel_offset */
222
223 HOWTO (R_860_LOW1, /* type */
224 0, /* rightshift */
225 2, /* size (0 = byte, 1 = short, 2 = long) */
226 16, /* bitsize */
227 FALSE, /* pc_relative */
228 0, /* bitpos */
229 complain_overflow_dont, /* complain_on_overflow */
230 bfd_elf_generic_reloc, /* special_function */
231 "R_860_LOW1", /* name */
232 FALSE, /* partial_inplace */
233 0xfffe, /* src_mask */
234 0xfffe, /* dst_mask */
235 FALSE), /* pcrel_offset */
236
237 HOWTO (R_860_SPLIT1, /* type */
238 0, /* rightshift */
239 2, /* size (0 = byte, 1 = short, 2 = long) */
240 16, /* bitsize */
241 FALSE, /* pc_relative */
242 0, /* bitpos */
243 complain_overflow_dont, /* complain_on_overflow */
244 bfd_elf_generic_reloc, /* special_function */
245 "R_860_SPLIT1", /* name */
246 FALSE, /* partial_inplace */
247 0x1f07fe, /* src_mask */
248 0x1f07fe, /* dst_mask */
249 FALSE), /* pcrel_offset */
250
251 HOWTO (R_860_LOW2, /* type */
252 0, /* rightshift */
253 2, /* size (0 = byte, 1 = short, 2 = long) */
254 16, /* bitsize */
255 FALSE, /* pc_relative */
256 0, /* bitpos */
257 complain_overflow_dont, /* complain_on_overflow */
258 bfd_elf_generic_reloc, /* special_function */
259 "R_860_LOW2", /* name */
260 FALSE, /* partial_inplace */
261 0xfffc, /* src_mask */
262 0xfffc, /* dst_mask */
263 FALSE), /* pcrel_offset */
264
265 HOWTO (R_860_SPLIT2, /* type */
266 0, /* rightshift */
267 2, /* size (0 = byte, 1 = short, 2 = long) */
268 16, /* bitsize */
269 FALSE, /* pc_relative */
270 0, /* bitpos */
271 complain_overflow_dont, /* complain_on_overflow */
272 bfd_elf_generic_reloc, /* special_function */
273 "R_860_SPLIT2", /* name */
274 FALSE, /* partial_inplace */
275 0x1f07fc, /* src_mask */
276 0x1f07fc, /* dst_mask */
277 FALSE), /* pcrel_offset */
278
279 HOWTO (R_860_LOW3, /* type */
280 0, /* rightshift */
281 2, /* size (0 = byte, 1 = short, 2 = long) */
282 16, /* bitsize */
283 FALSE, /* pc_relative */
284 0, /* bitpos */
285 complain_overflow_dont, /* complain_on_overflow */
286 bfd_elf_generic_reloc, /* special_function */
287 "R_860_LOW3", /* name */
288 FALSE, /* partial_inplace */
289 0xfff8, /* src_mask */
290 0xfff8, /* dst_mask */
291 FALSE), /* pcrel_offset */
292