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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [bfd/] [coff-sparc.c] - Blame information for rev 834

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1 227 jeremybenn
/* BFD back-end for Sparc COFF files.
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   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001,
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   2002, 2003, 2005, 2007, 2008  Free Software Foundation, Inc.
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   Written by Cygnus Support.
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   This file is part of BFD, the Binary File Descriptor library.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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   MA 02110-1301, USA.  */
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#include "sysdep.h"
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#include "bfd.h"
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#include "libbfd.h"
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#include "coff/sparc.h"
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#include "coff/internal.h"
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#include "libcoff.h"
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#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
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#define BADMAG(x) ((x).f_magic != SPARCMAGIC && (x).f_magic != LYNXCOFFMAGIC)
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/* The page size is a guess based on ELF.  */
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#define COFF_PAGE_SIZE 0x10000
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37
 
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static reloc_howto_type *coff_sparc_reloc_type_lookup
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  PARAMS ((bfd *, bfd_reloc_code_real_type));
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static void rtype2howto PARAMS ((arelent *, struct internal_reloc *));
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42
enum reloc_type
43
  {
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    R_SPARC_NONE = 0,
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    R_SPARC_8,          R_SPARC_16,             R_SPARC_32,
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    R_SPARC_DISP8,      R_SPARC_DISP16,         R_SPARC_DISP32,
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    R_SPARC_WDISP30,    R_SPARC_WDISP22,
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    R_SPARC_HI22,       R_SPARC_22,
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    R_SPARC_13,         R_SPARC_LO10,
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    R_SPARC_GOT10,      R_SPARC_GOT13,          R_SPARC_GOT22,
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    R_SPARC_PC10,       R_SPARC_PC22,
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    R_SPARC_WPLT30,
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    R_SPARC_COPY,
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    R_SPARC_GLOB_DAT,   R_SPARC_JMP_SLOT,
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    R_SPARC_RELATIVE,
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    R_SPARC_UA32,
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    R_SPARC_max
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  };
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/* This is stolen pretty directly from elf.c.  */
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static bfd_reloc_status_type
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bfd_coff_generic_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR,
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                                asection *, bfd *, char **));
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static bfd_reloc_status_type
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bfd_coff_generic_reloc (abfd, reloc_entry, symbol, data, input_section,
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                        output_bfd, error_message)
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     bfd *abfd ATTRIBUTE_UNUSED;
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     arelent *reloc_entry;
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     asymbol *symbol;
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     PTR data ATTRIBUTE_UNUSED;
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     asection *input_section;
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     bfd *output_bfd;
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     char **error_message ATTRIBUTE_UNUSED;
75
{
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  if (output_bfd != (bfd *) NULL
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      && (symbol->flags & BSF_SECTION_SYM) == 0)
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    {
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      reloc_entry->address += input_section->output_offset;
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      return bfd_reloc_ok;
81
    }
82
 
83
  return bfd_reloc_continue;
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}
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86
static reloc_howto_type coff_sparc_howto_table[] =
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{
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  HOWTO(R_SPARC_NONE,    0,0, 0,FALSE,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_NONE",    FALSE,0,0x00000000,TRUE),
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  HOWTO(R_SPARC_8,       0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_8",       FALSE,0,0x000000ff,TRUE),
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  HOWTO(R_SPARC_16,      0,1,16,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_16",      FALSE,0,0x0000ffff,TRUE),
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  HOWTO(R_SPARC_32,      0,2,32,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_32",      FALSE,0,0xffffffff,TRUE),
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  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),
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  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),
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  HOWTO(R_SPARC_HI22,   10,2,22,FALSE,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_HI22",    FALSE,0,0x003fffff,TRUE),
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  HOWTO(R_SPARC_22,      0,2,22,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_22",      FALSE,0,0x003fffff,TRUE),
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  HOWTO(R_SPARC_13,      0,2,13,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_13",      FALSE,0,0x00001fff,TRUE),
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  HOWTO(R_SPARC_LO10,    0,2,10,FALSE,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_LO10",    FALSE,0,0x000003ff,TRUE),
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  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),
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  HOWTO(R_SPARC_PC22,    0,2,22,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC22",    FALSE,0,0x003fffff,TRUE),
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  HOWTO(R_SPARC_WPLT30,  0,0,00,FALSE,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_WPLT30",  FALSE,0,0x00000000,TRUE),
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  HOWTO(R_SPARC_COPY,    0,0,00,FALSE,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_COPY",    FALSE,0,0x00000000,TRUE),
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  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),
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  HOWTO(R_SPARC_RELATIVE,0,0,00,FALSE,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
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  HOWTO(R_SPARC_UA32,    0,0,00,FALSE,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_UA32",    FALSE,0,0x00000000,TRUE),
112
};
113
 
114
struct coff_reloc_map {
115
  bfd_reloc_code_real_type bfd_reloc_val;
116
  unsigned char coff_reloc_val;
117
};
118
 
119
static const struct coff_reloc_map sparc_reloc_map[] =
120
{
121
  { BFD_RELOC_NONE, R_SPARC_NONE, },
122
  { BFD_RELOC_16, R_SPARC_16, },
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  { 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
 
147
static reloc_howto_type *
148
coff_sparc_reloc_type_lookup (abfd, code)
149
     bfd *abfd ATTRIBUTE_UNUSED;
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
 
162
static reloc_howto_type *
163
coff_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
 
180
static void
181
rtype2howto (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
 
191
#define SWAP_IN_RELOC_OFFSET    H_GET_32
192
#define SWAP_OUT_RELOC_OFFSET   H_PUT_32
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
 
205
/* Enable Sparc-specific hacks in coffcode.h.  */
206
 
207
#define COFF_SPARC
208
 
209
#define bfd_pe_print_pdata      NULL
210
 
211
#include "coffcode.h"
212
 
213
#ifndef TARGET_SYM
214
#define TARGET_SYM sparccoff_vec
215
#endif
216
 
217
#ifndef TARGET_NAME
218
#define TARGET_NAME "coff-sparc"
219
#endif
220
 
221
CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, D_PAGED, 0, '_', NULL, COFF_SWAP_TABLE)

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