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* Makefile.in (aout-sparcle.o): New target.
[deliverable/binutils-gdb.git] / bfd / elf32-v850.c
CommitLineData
01b49cb3
C		 1/* V850-specific support for 32-bit ELF
2 Copyright (C) 1994, 1995 Free Software Foundation, Inc.
3
4This file is part of BFD, the Binary File Descriptor library.
5
6This program is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2 of the License, or
9(at your option) any later version.
10
11This program is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with this program; if not, write to the Free Software
18Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19
20#include "bfd.h"
21#include "sysdep.h"
22#include "libbfd.h"
23#include "elf-bfd.h"
24
25static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
26 PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
27static void v850_info_to_howto_rel
28 PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
29
30
31/* Try to minimize the amount of space occupied by relocation tables
32 on the ROM (not that the ROM won't be swamped by other ELF overhead). */
33#define USE_REL
34
35enum reloc_type
36{
37 R_V850_NONE = 0,
38 R_V850_9_PCREL,
39 R_V850_22_PCREL,
40 R_V850_HI16_S,
41 R_V850_HI16,
42 R_V850_LO16,
237b5c4c
JL		 43 R_V850_32,
44 R_V850_16,
45 R_V850_8,
01b49cb3
C		 46 R_V850_max
47};
48
49static reloc_howto_type elf_v850_howto_table[] =
50{
51 /* This reloc does nothing. */
52 HOWTO (R_V850_NONE, /* type */
53 0, /* rightshift */
54 2, /* size (0 = byte, 1 = short, 2 = long) */
55 32, /* bitsize */
56 false, /* pc_relative */
57 0, /* bitpos */
58 complain_overflow_bitfield, /* complain_on_overflow */
59 bfd_elf_generic_reloc, /* special_function */
60 "R_V850_NONE", /* name */
61 false, /* partial_inplace */
62 0, /* src_mask */
63 0, /* dst_mask */
64 false), /* pcrel_offset */
65
66 /* A PC relative 9 bit branch. */
67 HOWTO (R_V850_9_PCREL, /* type */
68 2, /* rightshift */
69 2, /* size (0 = byte, 1 = short, 2 = long) */
70 26, /* bitsize */
71 true, /* pc_relative */
72 0, /* bitpos */
73 complain_overflow_bitfield, /* complain_on_overflow */
74 bfd_elf_generic_reloc, /* special_function */
75 "R_V850_9_PCREL", /* name */
76 false, /* partial_inplace */
77 0x00ffffff, /* src_mask */
78 0x00ffffff, /* dst_mask */
79 true), /* pcrel_offset */
80
81 /* A PC relative 22 bit branch. */
82 HOWTO (R_V850_22_PCREL, /* type */
83 2, /* rightshift */
84 2, /* size (0 = byte, 1 = short, 2 = long) */
85 22, /* bitsize */
86 true, /* pc_relative */
87 7, /* bitpos */
88 complain_overflow_signed, /* complain_on_overflow */
89 bfd_elf_generic_reloc, /* special_function */
90 "R_V850_22_PCREL", /* name */
91 false, /* partial_inplace */
92 0x07ffff80, /* src_mask */
93 0x07ffff80, /* dst_mask */
94 true), /* pcrel_offset */
95
96 /* High 16 bits of symbol value. */
97 HOWTO (R_V850_HI16_S, /* type */
98 0, /* rightshift */
99 1, /* size (0 = byte, 1 = short, 2 = long) */
100 16, /* bitsize */
101 false, /* pc_relative */
102 16, /* bitpos */
103 complain_overflow_dont,/* complain_on_overflow */
104 bfd_elf_generic_reloc, /* special_function */
105 "R_V850_HI16_S", /* name */
106 true, /* partial_inplace */
107 0xffff, /* src_mask */
108 0xffff, /* dst_mask */
109 false), /* pcrel_offset */
110
111 /* High 16 bits of symbol value. */
112 HOWTO (R_V850_HI16, /* type */
113 0, /* rightshift */
114 1, /* size (0 = byte, 1 = short, 2 = long) */
115 16, /* bitsize */
116 false, /* pc_relative */
117 16, /* bitpos */
118 complain_overflow_dont,/* complain_on_overflow */
119 bfd_elf_generic_reloc, /* special_function */
120 "R_V850_HI16", /* name */
121 true, /* partial_inplace */
122 0xffff, /* src_mask */
123 0xffff, /* dst_mask */
124 false), /* pcrel_offset */
125
126 /* Low 16 bits of symbol value. */
127 HOWTO (R_V850_LO16, /* type */
128 0, /* rightshift */
129 1, /* size (0 = byte, 1 = short, 2 = long) */
130 16, /* bitsize */
131 false, /* pc_relative */
132 16, /* bitpos */
133 complain_overflow_dont,/* complain_on_overflow */
134 bfd_elf_generic_reloc, /* special_function */
135 "R_V850_LO16", /* name */
136 true, /* partial_inplace */
137 0xffff, /* src_mask */
138 0xffff, /* dst_mask */
139 false), /* pcrel_offset */
237b5c4c
JL		 140
141 /* Simple 32bit reloc. */
142 HOWTO (R_V850_32, /* type */
143 0, /* rightshift */
144 2, /* size (0 = byte, 1 = short, 2 = long) */
145 32, /* bitsize */
146 false, /* pc_relative */
147 0, /* bitpos */
148 complain_overflow_dont,/* complain_on_overflow */
149 bfd_elf_generic_reloc, /* special_function */
150 "R_V850_32", /* name */
151 false, /* partial_inplace */
152 0, /* src_mask */
153 0xffffffff, /* dst_mask */
154 false), /* pcrel_offset */
155
156 /* Simple 16bit reloc. */
157 HOWTO (R_V850_16, /* type */
158 0, /* rightshift */
159 1, /* size (0 = byte, 1 = short, 2 = long) */
160 16, /* bitsize */
161 false, /* pc_relative */
162 0, /* bitpos */
163 complain_overflow_dont,/* complain_on_overflow */
164 bfd_elf_generic_reloc, /* special_function */
165 "R_V850_16", /* name */
166 false, /* partial_inplace */
167 0, /* src_mask */
168 0xffff, /* dst_mask */
169 false), /* pcrel_offset */
170
171 /* Simple 8bit reloc. */
172 HOWTO (R_V850_8, /* type */
173 0, /* rightshift */
174 0, /* size (0 = byte, 1 = short, 2 = long) */
175 8, /* bitsize */
176 false, /* pc_relative */
177 0, /* bitpos */
178 complain_overflow_dont,/* complain_on_overflow */
179 bfd_elf_generic_reloc, /* special_function */
180 "R_V850_8", /* name */
181 false, /* partial_inplace */
182 0, /* src_mask */
183 0xff, /* dst_mask */
184 false), /* pcrel_offset */
01b49cb3
C		 185};
186
187/* Map BFD reloc types to V850 ELF reloc types. */
188
189struct v850_reloc_map
190{
191 unsigned char bfd_reloc_val;
192 unsigned char elf_reloc_val;
193};
194
195static const struct v850_reloc_map v850_reloc_map[] =
196{
197 { BFD_RELOC_NONE, R_V850_NONE, },
198 { BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL, },
199 { BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL, },
200 { BFD_RELOC_HI16_S, R_V850_HI16_S, },
201 { BFD_RELOC_HI16, R_V850_HI16, },
202 { BFD_RELOC_LO16, R_V850_LO16, },
237b5c4c
JL		 203 { BFD_RELOC_32, R_V850_32, },
204 { BFD_RELOC_16, R_V850_16, },
205 { BFD_RELOC_8, R_V850_8, },
01b49cb3
C		 206};
207
208static reloc_howto_type *
209bfd_elf32_bfd_reloc_type_lookup (abfd, code)
210 bfd *abfd;
211 bfd_reloc_code_real_type code;
212{
213 unsigned int i;
214
215 for (i = 0;
216 i < sizeof (v850_reloc_map) / sizeof (struct v850_reloc_map);
217 i++)
218 {
219 if (v850_reloc_map[i].bfd_reloc_val == code)
220 return &elf_v850_howto_table[v850_reloc_map[i].elf_reloc_val];
221 }
222
223 return NULL;
224}
225
226/* Set the howto pointer for an V850 ELF reloc. */
227
228static void
229v850_info_to_howto_rel (abfd, cache_ptr, dst)
230 bfd *abfd;
231 arelent *cache_ptr;
232 Elf32_Internal_Rel *dst;
233{
234 unsigned int r_type;
235
236 r_type = ELF32_R_TYPE (dst->r_info);
237 BFD_ASSERT (r_type < (unsigned int) R_V850_max);
238 cache_ptr->howto = &elf_v850_howto_table[r_type];
239}
240
241#define TARGET_BIG_SYM bfd_elf32_v850_vec
242#define TARGET_BIG_NAME "elf32-v850"
243#define ELF_ARCH bfd_arch_v850
244#define ELF_MACHINE_CODE EM_CYGNUS_V850
245#define ELF_MAXPAGESIZE 0x1000
246
247#define elf_info_to_howto 0
248#define elf_info_to_howto_rel v850_info_to_howto_rel
249
250#include "elf32-target.h"
GDB Binutils - Deliverables
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