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[/] [or1k/] [branches/] [oc/] [gdb-5.0/] [bfd/] [coff-sparc.c] - Blame information for rev 1765

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1 104 markom
/* BFD back-end for Sparc COFF files.
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   Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999
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   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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8
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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
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#include "bfd.h"
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#include "sysdep.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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36
enum reloc_type
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  {
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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
52
  };
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54
#if 0
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static CONST char *CONST reloc_type_names[] =
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{
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  "R_SPARC_NONE",
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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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};
71
#endif
72
 
73
/* 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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78
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;
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{
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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;
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    }
95
 
96
  return bfd_reloc_continue;
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}
98
 
99
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),
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),
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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),
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),
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  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),
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  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),
125
};
126
 
127
struct coff_reloc_map {
128
  bfd_reloc_code_real_type bfd_reloc_val;
129
  unsigned char coff_reloc_val;
130
};
131
 
132
static 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 },
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  { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
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  { 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 },
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  { 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
 
160
static reloc_howto_type *
161
coff_sparc_reloc_type_lookup (abfd, code)
162
     bfd *abfd ATTRIBUTE_UNUSED;
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
 
175
static void
176
rtype2howto (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
 
200
/* Enable Sparc-specific hacks in coffcode.h. */
201
 
202
#define COFF_SPARC
203
 
204
#include "coffcode.h"
205
 
206
#ifndef TARGET_SYM
207
#define TARGET_SYM sparccoff_vec
208
#endif
209
 
210
#ifndef TARGET_NAME
211
#define TARGET_NAME "coff-sparc"
212
#endif
213
 
214
CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, D_PAGED, 0, '_', NULL)

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