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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.
eac93a98 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001,
157090f7 3 2002, 2003, 2005, 2007 Free Software Foundation, Inc.
252b5132
RH		 4 Written by Cygnus Support.
5
cd123cb7
NC		 6 This file is part of BFD, the Binary File Descriptor library.
7
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.
12
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.
17
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. */
252b5132 22
252b5132 23#include "sysdep.h"
3db64b00 24#include "bfd.h"
252b5132
RH		 25#include "libbfd.h"
26#include "coff/sparc.h"
27#include "coff/internal.h"
28#include "libcoff.h"
29
30#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
31
32#define BADMAG(x) ((x).f_magic != SPARCMAGIC && (x).f_magic != LYNXCOFFMAGIC)
33
34/* The page size is a guess based on ELF. */
35#define COFF_PAGE_SIZE 0x10000
36
5a65713f
AJ		 37
38static reloc_howto_type *coff_sparc_reloc_type_lookup
39 PARAMS ((bfd *, bfd_reloc_code_real_type));
40static void rtype2howto PARAMS ((arelent *, struct internal_reloc *));
dc810e39 41
252b5132
RH		 42enum reloc_type
43 {
44 R_SPARC_NONE = 0,
cbfe05c4
KH		 45 R_SPARC_8, R_SPARC_16, R_SPARC_32,
46 R_SPARC_DISP8, R_SPARC_DISP16, R_SPARC_DISP32,
252b5132
RH		 47 R_SPARC_WDISP30, R_SPARC_WDISP22,
48 R_SPARC_HI22, R_SPARC_22,
49 R_SPARC_13, R_SPARC_LO10,
50 R_SPARC_GOT10, R_SPARC_GOT13, R_SPARC_GOT22,
51 R_SPARC_PC10, R_SPARC_PC22,
52 R_SPARC_WPLT30,
53 R_SPARC_COPY,
54 R_SPARC_GLOB_DAT, R_SPARC_JMP_SLOT,
55 R_SPARC_RELATIVE,
56 R_SPARC_UA32,
57 R_SPARC_max
58 };
59
252b5132
RH		 60/* This is stolen pretty directly from elf.c. */
61static bfd_reloc_status_type
62bfd_coff_generic_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR,
63 asection *, bfd *, char **));
64
65static bfd_reloc_status_type
66bfd_coff_generic_reloc (abfd, reloc_entry, symbol, data, input_section,
67 output_bfd, error_message)
5f771d47 68 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH		 69 arelent *reloc_entry;
70 asymbol *symbol;
5f771d47 71 PTR data ATTRIBUTE_UNUSED;
252b5132
RH		 72 asection *input_section;
73 bfd *output_bfd;
5f771d47 74 char **error_message ATTRIBUTE_UNUSED;
252b5132
RH		 75{
76 if (output_bfd != (bfd *) NULL
77 && (symbol->flags & BSF_SECTION_SYM) == 0)
78 {
79 reloc_entry->address += input_section->output_offset;
80 return bfd_reloc_ok;
81 }
82
83 return bfd_reloc_continue;
84}
85
cbfe05c4 86static reloc_howto_type coff_sparc_howto_table[] =
252b5132 87{
b34976b6
AM		 88 HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
89 HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_8", FALSE,0,0x000000ff,TRUE),
90 HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
91 HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_32", FALSE,0,0xffffffff,TRUE),
92 HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
93 HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
94 HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP32", FALSE,0,0x00ffffff,TRUE),
95 HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
96 HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
97 HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
98 HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_22", FALSE,0,0x003fffff,TRUE),
99 HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_13", FALSE,0,0x00001fff,TRUE),
100 HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
101 HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
102 HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
103 HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
104 HOWTO(R_SPARC_PC10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
105 HOWTO(R_SPARC_PC22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
106 HOWTO(R_SPARC_WPLT30, 0,0,00,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_WPLT30", FALSE,0,0x00000000,TRUE),
107 HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
108 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),
109 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),
110 HOWTO(R_SPARC_RELATIVE,0,0,00,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
111 HOWTO(R_SPARC_UA32, 0,0,00,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_UA32", FALSE,0,0x00000000,TRUE),
252b5132
RH		 112};
113
114struct coff_reloc_map {
115 bfd_reloc_code_real_type bfd_reloc_val;
116 unsigned char coff_reloc_val;
117};
118
dc810e39 119static const struct coff_reloc_map sparc_reloc_map[] =
252b5132
RH		 120{
121 { BFD_RELOC_NONE, R_SPARC_NONE, },
122 { BFD_RELOC_16, R_SPARC_16, },
123 { BFD_RELOC_8, R_SPARC_8 },
124 { BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
125 { BFD_RELOC_CTOR, R_SPARC_32 }, /* @@ Assumes 32 bits. */
126 { BFD_RELOC_32, R_SPARC_32 },
127 { BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
128 { BFD_RELOC_HI22, R_SPARC_HI22 },
129 { BFD_RELOC_LO10, R_SPARC_LO10, },
130 { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
131 { BFD_RELOC_SPARC22, R_SPARC_22 },
132 { BFD_RELOC_SPARC13, R_SPARC_13 },
133 { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 },
134 { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
135 { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 },
136 { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
137 { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
138 { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
139 { BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
140 { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
141 { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
142 { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
143 { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
144 /* { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */
145};
146
147static reloc_howto_type *
148coff_sparc_reloc_type_lookup (abfd, code)
5f771d47 149 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH		 150 bfd_reloc_code_real_type code;
151{
152 unsigned int i;
153 for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct coff_reloc_map); i++)
154 {
155 if (sparc_reloc_map[i].bfd_reloc_val == code)
156 return &coff_sparc_howto_table[(int) sparc_reloc_map[i].coff_reloc_val];
157 }
158 return 0;
159}
160#define coff_bfd_reloc_type_lookup coff_sparc_reloc_type_lookup
161
157090f7
AM		 162static reloc_howto_type *
163coff_sparc_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
164 const char *r_name)
165{
166 unsigned int i;
167
168 for (i = 0;
169 i < (sizeof (coff_sparc_howto_table)
170 / sizeof (coff_sparc_howto_table[0]));
171 i++)
172 if (coff_sparc_howto_table[i].name != NULL
173 && strcasecmp (coff_sparc_howto_table[i].name, r_name) == 0)
174 return &coff_sparc_howto_table[i];
175
176 return NULL;
177}
178#define coff_bfd_reloc_name_lookup coff_sparc_reloc_name_lookup
179
252b5132
RH		 180static void
181rtype2howto (cache_ptr, dst)
182 arelent *cache_ptr;
183 struct internal_reloc *dst;
184{
185 BFD_ASSERT (dst->r_type < (unsigned int) R_SPARC_max);
186 cache_ptr->howto = &coff_sparc_howto_table[dst->r_type];
187}
188
189#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
190
dc810e39
AM		 191#define SWAP_IN_RELOC_OFFSET H_GET_32
192#define SWAP_OUT_RELOC_OFFSET H_PUT_32
252b5132
RH		 193#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
194 cache_ptr->addend = reloc.r_offset;
195
196/* Clear the r_spare field in relocs. */
197#define SWAP_OUT_RELOC_EXTRA(abfd,src,dst) \
198 do { \
199 dst->r_spare[0] = 0; \
200 dst->r_spare[1] = 0; \
201 } while (0)
202
203#define __A_MAGIC_SET__
204
cbfe05c4 205/* Enable Sparc-specific hacks in coffcode.h. */
252b5132
RH		 206
207#define COFF_SPARC
208
209#include "coffcode.h"
210
c3c89269
NC		 211#ifndef TARGET_SYM
212#define TARGET_SYM sparccoff_vec
252b5132 213#endif
252b5132 214
c3c89269
NC		 215#ifndef TARGET_NAME
216#define TARGET_NAME "coff-sparc"
217#endif
252b5132 218
3fa78519 219CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, D_PAGED, 0, '_', NULL, COFF_SWAP_TABLE)
GDB Binutils - Deliverables
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