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[deliverable/binutils-gdb.git] / bfd / coff-sparc.c
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252b5132 1/* BFD back-end for Sparc COFF files.
7898deda 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000
5f771d47 3 Free Software Foundation, Inc.
252b5132
RH		 4 Written by Cygnus Support.
5
6This file is part of BFD, the Binary File Descriptor library.
7
8This program is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 2 of the License, or
11(at your option) any later version.
12
13This program is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with this program; if not, write to the Free Software
20Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21
22#include "bfd.h"
23#include "sysdep.h"
24#include "libbfd.h"
25#include "coff/sparc.h"
26#include "coff/internal.h"
27#include "libcoff.h"
28
29#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
30
31#define BADMAG(x) ((x).f_magic != SPARCMAGIC && (x).f_magic != LYNXCOFFMAGIC)
32
33/* The page size is a guess based on ELF. */
34#define COFF_PAGE_SIZE 0x10000
35
36enum reloc_type
37 {
38 R_SPARC_NONE = 0,
cbfe05c4
KH		 39 R_SPARC_8, R_SPARC_16, R_SPARC_32,
40 R_SPARC_DISP8, R_SPARC_DISP16, R_SPARC_DISP32,
252b5132
RH		 41 R_SPARC_WDISP30, R_SPARC_WDISP22,
42 R_SPARC_HI22, R_SPARC_22,
43 R_SPARC_13, R_SPARC_LO10,
44 R_SPARC_GOT10, R_SPARC_GOT13, R_SPARC_GOT22,
45 R_SPARC_PC10, R_SPARC_PC22,
46 R_SPARC_WPLT30,
47 R_SPARC_COPY,
48 R_SPARC_GLOB_DAT, R_SPARC_JMP_SLOT,
49 R_SPARC_RELATIVE,
50 R_SPARC_UA32,
51 R_SPARC_max
52 };
53
54#if 0
55static CONST char *CONST reloc_type_names[] =
56{
57 "R_SPARC_NONE",
58 "R_SPARC_8", "R_SPARC_16", "R_SPARC_32",
59 "R_SPARC_DISP8", "R_SPARC_DISP16", "R_SPARC_DISP32",
60 "R_SPARC_WDISP30", "R_SPARC_WDISP22",
61 "R_SPARC_HI22", "R_SPARC_22",
62 "R_SPARC_13", "R_SPARC_LO10",
63 "R_SPARC_GOT10", "R_SPARC_GOT13", "R_SPARC_GOT22",
64 "R_SPARC_PC10", "R_SPARC_PC22",
65 "R_SPARC_WPLT30",
66 "R_SPARC_COPY",
67 "R_SPARC_GLOB_DAT", "R_SPARC_JMP_SLOT",
68 "R_SPARC_RELATIVE",
69 "R_SPARC_UA32",
70};
71#endif
72
73/* This is stolen pretty directly from elf.c. */
74static bfd_reloc_status_type
75bfd_coff_generic_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR,
76 asection *, bfd *, char **));
77
78static bfd_reloc_status_type
79bfd_coff_generic_reloc (abfd, reloc_entry, symbol, data, input_section,
80 output_bfd, error_message)
5f771d47 81 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH		 82 arelent *reloc_entry;
83 asymbol *symbol;
5f771d47 84 PTR data ATTRIBUTE_UNUSED;
252b5132
RH		 85 asection *input_section;
86 bfd *output_bfd;
5f771d47 87 char **error_message ATTRIBUTE_UNUSED;
252b5132
RH		 88{
89 if (output_bfd != (bfd *) NULL
90 && (symbol->flags & BSF_SECTION_SYM) == 0)
91 {
92 reloc_entry->address += input_section->output_offset;
93 return bfd_reloc_ok;
94 }
95
96 return bfd_reloc_continue;
97}
98
cbfe05c4 99static reloc_howto_type coff_sparc_howto_table[] =
252b5132
RH		 100{
101 HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_NONE", false,0,0x00000000,true),
102 HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_8", false,0,0x000000ff,true),
103 HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_16", false,0,0x0000ffff,true),
104 HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_32", false,0,0xffffffff,true),
105 HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP8", false,0,0x000000ff,true),
106 HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP16", false,0,0x0000ffff,true),
107 HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP32", false,0,0x00ffffff,true),
108 HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_WDISP30", false,0,0x3fffffff,true),
109 HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_WDISP22", false,0,0x003fffff,true),
110 HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_HI22", false,0,0x003fffff,true),
111 HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_22", false,0,0x003fffff,true),
112 HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_13", false,0,0x00001fff,true),
113 HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_LO10", false,0,0x000003ff,true),
114 HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT10", false,0,0x000003ff,true),
115 HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT13", false,0,0x00001fff,true),
116 HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT22", false,0,0x003fffff,true),
117 HOWTO(R_SPARC_PC10, 0,2,10,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC10", false,0,0x000003ff,true),
118 HOWTO(R_SPARC_PC22, 0,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC22", false,0,0x003fffff,true),
119 HOWTO(R_SPARC_WPLT30, 0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_WPLT30", false,0,0x00000000,true),
120 HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_COPY", false,0,0x00000000,true),
121 HOWTO(R_SPARC_GLOB_DAT,0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_GLOB_DAT",false,0,0x00000000,true),
122 HOWTO(R_SPARC_JMP_SLOT,0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_JMP_SLOT",false,0,0x00000000,true),
123 HOWTO(R_SPARC_RELATIVE,0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_RELATIVE",false,0,0x00000000,true),
124 HOWTO(R_SPARC_UA32, 0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_UA32", false,0,0x00000000,true),
125};
126
127struct coff_reloc_map {
128 bfd_reloc_code_real_type bfd_reloc_val;
129 unsigned char coff_reloc_val;
130};
131
132static CONST struct coff_reloc_map sparc_reloc_map[] =
133{
134 { BFD_RELOC_NONE, R_SPARC_NONE, },
135 { BFD_RELOC_16, R_SPARC_16, },
136 { BFD_RELOC_8, R_SPARC_8 },
137 { BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
138 { BFD_RELOC_CTOR, R_SPARC_32 }, /* @@ Assumes 32 bits. */
139 { BFD_RELOC_32, R_SPARC_32 },
140 { BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
141 { BFD_RELOC_HI22, R_SPARC_HI22 },
142 { BFD_RELOC_LO10, R_SPARC_LO10, },
143 { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
144 { BFD_RELOC_SPARC22, R_SPARC_22 },
145 { BFD_RELOC_SPARC13, R_SPARC_13 },
146 { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 },
147 { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
148 { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 },
149 { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
150 { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
151 { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
152 { BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
153 { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
154 { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
155 { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
156 { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
157 /* { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */
158};
159
160static reloc_howto_type *
161coff_sparc_reloc_type_lookup (abfd, code)
5f771d47 162 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH		 163 bfd_reloc_code_real_type code;
164{
165 unsigned int i;
166 for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct coff_reloc_map); i++)
167 {
168 if (sparc_reloc_map[i].bfd_reloc_val == code)
169 return &coff_sparc_howto_table[(int) sparc_reloc_map[i].coff_reloc_val];
170 }
171 return 0;
172}
173#define coff_bfd_reloc_type_lookup coff_sparc_reloc_type_lookup
174
175static void
176rtype2howto (cache_ptr, dst)
177 arelent *cache_ptr;
178 struct internal_reloc *dst;
179{
180 BFD_ASSERT (dst->r_type < (unsigned int) R_SPARC_max);
181 cache_ptr->howto = &coff_sparc_howto_table[dst->r_type];
182}
183
184#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
185
186#define SWAP_IN_RELOC_OFFSET bfd_h_get_32
187#define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
188#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
189 cache_ptr->addend = reloc.r_offset;
190
191/* Clear the r_spare field in relocs. */
192#define SWAP_OUT_RELOC_EXTRA(abfd,src,dst) \
193 do { \
194 dst->r_spare[0] = 0; \
195 dst->r_spare[1] = 0; \
196 } while (0)
197
198#define __A_MAGIC_SET__
199
cbfe05c4 200/* Enable Sparc-specific hacks in coffcode.h. */
252b5132
RH		 201
202#define COFF_SPARC
203
204#include "coffcode.h"
205
c3c89269
NC		 206#ifndef TARGET_SYM
207#define TARGET_SYM sparccoff_vec
252b5132 208#endif
252b5132 209
c3c89269
NC		 210#ifndef TARGET_NAME
211#define TARGET_NAME "coff-sparc"
212#endif
252b5132 213
c3c89269 214CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, D_PAGED, 0, '_', NULL)
GDB Binutils - Deliverables
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