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binutils-gdb/bfd/coff-sparc.c
Alan Modra dc810e3900 Touches most files in bfd/, so likely will be blamed for everything.. 
o  bfd_read and bfd_write lose an unnecessary param and become
   bfd_bread and bfd_bwrite.

o  bfd_*alloc now all take a bfd_size_type arg, and will error if
   size_t is too small.  eg. 32 bit host, 64 bit bfd, verrry big files
   or bugs in linker scripts etc.

o  file_ptr becomes a bfd_signed_vma.  Besides matching sizes with
   various other types involved in handling sections, this should make
   it easier for bfd to support a 64 bit off_t on 32 bit hosts that
   provide it.

o  I've made the H_GET_* and H_PUT_* macros (which invoke bfd_h_{get,put}_*)
   generally available.  They now cast their args to bfd_vma and
   bfd_byte * as appropriate, which removes a swag of casts from the
   source.

o  Bug fixes to bfd_get8, aix386_core_vec, elf32_h8_relax_section, and
   aout-encap.c.

o  Zillions of formatting and -Wconversion fixes.
2001-09-18 09:57:26 +00:00

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/* BFD back-end for Sparc COFF files.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001
Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "coff/sparc.h"
#include "coff/internal.h"
#include "libcoff.h"
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
#define BADMAG(x) ((x).f_magic != SPARCMAGIC && (x).f_magic != LYNXCOFFMAGIC)
/* The page size is a guess based on ELF. */
#define COFF_PAGE_SIZE 0x10000
static reloc_howto_type *coff_sparc_reloc_type_lookup
PARAMS ((bfd *, bfd_reloc_code_real_type));
static void rtype2howto PARAMS ((arelent *, struct internal_reloc *));
enum reloc_type
{
R_SPARC_NONE = 0,
R_SPARC_8, R_SPARC_16, R_SPARC_32,
R_SPARC_DISP8, R_SPARC_DISP16, R_SPARC_DISP32,
R_SPARC_WDISP30, R_SPARC_WDISP22,
R_SPARC_HI22, R_SPARC_22,
R_SPARC_13, R_SPARC_LO10,
R_SPARC_GOT10, R_SPARC_GOT13, R_SPARC_GOT22,
R_SPARC_PC10, R_SPARC_PC22,
R_SPARC_WPLT30,
R_SPARC_COPY,
R_SPARC_GLOB_DAT, R_SPARC_JMP_SLOT,
R_SPARC_RELATIVE,
R_SPARC_UA32,
R_SPARC_max
};
#if 0
static const char *const reloc_type_names[] =
{
"R_SPARC_NONE",
"R_SPARC_8", "R_SPARC_16", "R_SPARC_32",
"R_SPARC_DISP8", "R_SPARC_DISP16", "R_SPARC_DISP32",
"R_SPARC_WDISP30", "R_SPARC_WDISP22",
"R_SPARC_HI22", "R_SPARC_22",
"R_SPARC_13", "R_SPARC_LO10",
"R_SPARC_GOT10", "R_SPARC_GOT13", "R_SPARC_GOT22",
"R_SPARC_PC10", "R_SPARC_PC22",
"R_SPARC_WPLT30",
"R_SPARC_COPY",
"R_SPARC_GLOB_DAT", "R_SPARC_JMP_SLOT",
"R_SPARC_RELATIVE",
"R_SPARC_UA32",
};
#endif
/* This is stolen pretty directly from elf.c. */
static bfd_reloc_status_type
bfd_coff_generic_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR,
asection *, bfd *, char **));
static bfd_reloc_status_type
bfd_coff_generic_reloc (abfd, reloc_entry, symbol, data, input_section,
output_bfd, error_message)
bfd *abfd ATTRIBUTE_UNUSED;
arelent *reloc_entry;
asymbol *symbol;
PTR data ATTRIBUTE_UNUSED;
asection *input_section;
bfd *output_bfd;
char **error_message ATTRIBUTE_UNUSED;
{
if (output_bfd != (bfd *) NULL
&& (symbol->flags & BSF_SECTION_SYM) == 0)
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
return bfd_reloc_continue;
}
static reloc_howto_type coff_sparc_howto_table[] =
{
HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_NONE", false,0,0x00000000,true),
HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_8", false,0,0x000000ff,true),
HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_16", false,0,0x0000ffff,true),
HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_32", false,0,0xffffffff,true),
HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP8", false,0,0x000000ff,true),
HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP16", false,0,0x0000ffff,true),
HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP32", false,0,0x00ffffff,true),
HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_WDISP30", false,0,0x3fffffff,true),
HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_WDISP22", false,0,0x003fffff,true),
HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_HI22", false,0,0x003fffff,true),
HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_22", false,0,0x003fffff,true),
HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_13", false,0,0x00001fff,true),
HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_LO10", false,0,0x000003ff,true),
HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT10", false,0,0x000003ff,true),
HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT13", false,0,0x00001fff,true),
HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT22", false,0,0x003fffff,true),
HOWTO(R_SPARC_PC10, 0,2,10,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC10", false,0,0x000003ff,true),
HOWTO(R_SPARC_PC22, 0,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC22", false,0,0x003fffff,true),
HOWTO(R_SPARC_WPLT30, 0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_WPLT30", false,0,0x00000000,true),
HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_COPY", false,0,0x00000000,true),
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),
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),
HOWTO(R_SPARC_RELATIVE,0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_RELATIVE",false,0,0x00000000,true),
HOWTO(R_SPARC_UA32, 0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_UA32", false,0,0x00000000,true),
};
struct coff_reloc_map {
bfd_reloc_code_real_type bfd_reloc_val;
unsigned char coff_reloc_val;
};
static const struct coff_reloc_map sparc_reloc_map[] =
{
{ BFD_RELOC_NONE, R_SPARC_NONE, },
{ BFD_RELOC_16, R_SPARC_16, },
{ BFD_RELOC_8, R_SPARC_8 },
{ BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
{ BFD_RELOC_CTOR, R_SPARC_32 }, /* @@ Assumes 32 bits. */
{ BFD_RELOC_32, R_SPARC_32 },
{ BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
{ BFD_RELOC_HI22, R_SPARC_HI22 },
{ BFD_RELOC_LO10, R_SPARC_LO10, },
{ BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
{ BFD_RELOC_SPARC22, R_SPARC_22 },
{ BFD_RELOC_SPARC13, R_SPARC_13 },
{ BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 },
{ BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
{ BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 },
{ BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
{ BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
{ BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
{ BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
{ BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
{ BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
{ BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
{ BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
/* { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */
};
static reloc_howto_type *
coff_sparc_reloc_type_lookup (abfd, code)
bfd *abfd ATTRIBUTE_UNUSED;
bfd_reloc_code_real_type code;
{
unsigned int i;
for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct coff_reloc_map); i++)
{
if (sparc_reloc_map[i].bfd_reloc_val == code)
return &coff_sparc_howto_table[(int) sparc_reloc_map[i].coff_reloc_val];
}
return 0;
}
#define coff_bfd_reloc_type_lookup coff_sparc_reloc_type_lookup
static void
rtype2howto (cache_ptr, dst)
arelent *cache_ptr;
struct internal_reloc *dst;
{
BFD_ASSERT (dst->r_type < (unsigned int) R_SPARC_max);
cache_ptr->howto = &coff_sparc_howto_table[dst->r_type];
}
#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
#define SWAP_IN_RELOC_OFFSET H_GET_32
#define SWAP_OUT_RELOC_OFFSET H_PUT_32
#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
cache_ptr->addend = reloc.r_offset;
/* Clear the r_spare field in relocs. */
#define SWAP_OUT_RELOC_EXTRA(abfd,src,dst) \
do { \
dst->r_spare[0] = 0; \
dst->r_spare[1] = 0; \
} while (0)
#define __A_MAGIC_SET__
/* Enable Sparc-specific hacks in coffcode.h. */
#define COFF_SPARC
#include "coffcode.h"
#ifndef TARGET_SYM
#define TARGET_SYM sparccoff_vec
#endif
#ifndef TARGET_NAME
#define TARGET_NAME "coff-sparc"
#endif
CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, D_PAGED, 0, '_', NULL)
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