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/* SPARC-specific support for 32-bit ELF
Copyright 1993 Free Software Foundation, Inc.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "libelf.h"
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
static reloc_howto_type elf_sparc_howto_table[] =
{
HOWTO(R_SPARC_NONE, 0,0, 0,false,0,false,false, bfd_elf_generic_reloc,"R_SPARC_NONE", false,0,0x00000000,false),
HOWTO(R_SPARC_8, 0,0, 8,false,0,true, true, bfd_elf_generic_reloc,"R_SPARC_8", false,0,0x000000ff,false),
HOWTO(R_SPARC_16, 0,1,16,false,0,true, true, bfd_elf_generic_reloc,"R_SPARC_16", false,0,0x0000ffff,false),
HOWTO(R_SPARC_32, 0,2,32,false,0,true, true, bfd_elf_generic_reloc,"R_SPARC_32", false,0,0xffffffff,false),
HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_DISP8", false,0,0x000000ff,false),
HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_DISP16", false,0,0x0000ffff,false),
HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_DISP32", false,0,0x00ffffff,false),
HOWTO(R_SPARC_WDISP30,2,2,30,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_WDISP30",false,0,0x3fffffff,false),
HOWTO(R_SPARC_WDISP22,2,2,22,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_WDISP22",false,0,0x003fffff,false),
HOWTO(R_SPARC_HI22, 10,2,22,false,0,true, false, bfd_elf_generic_reloc,"R_SPARC_HI22", false,0,0x003fffff,false),
HOWTO(R_SPARC_22, 0,2,22,false,0,true, true, bfd_elf_generic_reloc,"R_SPARC_22", false,0,0x003fffff,false),
HOWTO(R_SPARC_13, 0,1,13,false,0,true, true, bfd_elf_generic_reloc,"R_SPARC_13", false,0,0x00001fff,false),
HOWTO(R_SPARC_LO10, 0,1,10,false,0,true, false, bfd_elf_generic_reloc,"R_SPARC_LO10", false,0,0x000003ff,false),
HOWTO(R_SPARC_GOT10, 0,1,10,false,0,false, true, bfd_elf_generic_reloc,"R_SPARC_GOT10", false,0,0x000003ff,false),
HOWTO(R_SPARC_GOT13, 0,1,13,false,0,false, true, bfd_elf_generic_reloc,"R_SPARC_GOT13", false,0,0x00001fff,false),
HOWTO(R_SPARC_GOT22, 10,2,22,false,0,false, true, bfd_elf_generic_reloc,"R_SPARC_GOT22", false,0,0x003fffff,false),
HOWTO(R_SPARC_PC10, 0,1,10,false,0,true, true, bfd_elf_generic_reloc,"R_SPARC_PC10", false,0,0x000003ff,false),
HOWTO(R_SPARC_PC22, 0,2,22,false,0,true, true, bfd_elf_generic_reloc,"R_SPARC_PC22", false,0,0x003fffff,false),
HOWTO(R_SPARC_WPLT30, 0,0,00,false,0,false,false, bfd_elf_generic_reloc,"R_SPARC_WPLT30", false,0,0x00000000,false),
HOWTO(R_SPARC_COPY, 0,0,00,false,0,false,false, bfd_elf_generic_reloc,"R_SPARC_COPY", false,0,0x00000000,false),
HOWTO(R_SPARC_GLOB_DAT,0,0,00,false,0,false,false,bfd_elf_generic_reloc,"R_SPARC_GLOB_DAT",false,0,0x00000000,false),
HOWTO(R_SPARC_JMP_SLOT,0,0,00,false,0,false,false,bfd_elf_generic_reloc,"R_SPARC_JMP_SLOT",false,0,0x00000000,false),
HOWTO(R_SPARC_RELATIVE,0,0,00,false,0,false,false,bfd_elf_generic_reloc,"R_SPARC_RELATIVE",false,0,0x00000000,false),
HOWTO(R_SPARC_UA32, 0,0,00,false,0,false,false,bfd_elf_generic_reloc,"R_SPARC_UA32", false,0,0x00000000,false),
};
struct elf_reloc_map {
unsigned char bfd_reloc_val;
unsigned char elf_reloc_val;
};
static CONST struct elf_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 CONST struct reloc_howto_struct *
DEFUN (bfd_elf32_bfd_reloc_type_lookup, (abfd, code),
bfd *abfd AND
bfd_reloc_code_real_type code)
{
int i;
for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++)
{
if (sparc_reloc_map[i].bfd_reloc_val == code)
return &elf_sparc_howto_table[(int) sparc_reloc_map[i].elf_reloc_val];
}
return 0;
}
static void
DEFUN (elf_info_to_howto, (abfd, cache_ptr, dst),
bfd *abfd AND
arelent *cache_ptr AND
Elf32_Internal_Rela *dst)
{
BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_SPARC_max);
cache_ptr->howto = &elf_sparc_howto_table[ELF32_R_TYPE(dst->r_info)];
}
#define TARGET_BIG_SYM bfd_elf32_sparc_vec
#define TARGET_BIG_NAME "elf32-sparc"
#define ELF_ARCH bfd_arch_sparc
#include "elf32-target.h"
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