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209 lines
8.4 KiB
C
209 lines
8.4 KiB
C
/* BFD back-end for Sparc COFF files.
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Copyright (C) 1990-2017 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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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
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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 (bfd *abfd ATTRIBUTE_UNUSED,
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arelent *reloc_entry,
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asymbol *symbol,
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void * 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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}
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return bfd_reloc_continue;
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}
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static reloc_howto_type coff_sparc_howto_table[] =
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{
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HOWTO(R_SPARC_NONE, 0,3, 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),
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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),
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HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
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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),
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HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
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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),
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};
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struct coff_reloc_map
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{
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bfd_reloc_code_real_type bfd_reloc_val;
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unsigned char coff_reloc_val;
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};
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static const struct coff_reloc_map sparc_reloc_map[] =
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{
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{ BFD_RELOC_NONE, R_SPARC_NONE, },
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{ BFD_RELOC_16, R_SPARC_16, },
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{ BFD_RELOC_8, R_SPARC_8 },
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{ BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
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{ BFD_RELOC_CTOR, R_SPARC_32 }, /* @@ Assumes 32 bits. */
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{ BFD_RELOC_32, R_SPARC_32 },
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{ BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
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{ BFD_RELOC_HI22, R_SPARC_HI22 },
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{ BFD_RELOC_LO10, R_SPARC_LO10, },
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{ BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
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{ BFD_RELOC_SPARC22, R_SPARC_22 },
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{ BFD_RELOC_SPARC13, R_SPARC_13 },
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{ 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 },
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{ BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
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{ BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
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{ BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
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{ BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
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{ BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
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{ BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
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{ BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
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{ BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
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/* { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */
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};
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static reloc_howto_type *
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coff_sparc_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
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bfd_reloc_code_real_type code)
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{
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unsigned int i;
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for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct coff_reloc_map); i++)
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{
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if (sparc_reloc_map[i].bfd_reloc_val == code)
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return &coff_sparc_howto_table[(int) sparc_reloc_map[i].coff_reloc_val];
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}
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return 0;
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}
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#define coff_bfd_reloc_type_lookup coff_sparc_reloc_type_lookup
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static reloc_howto_type *
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coff_sparc_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
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const char *r_name)
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{
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unsigned int i;
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for (i = 0;
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i < (sizeof (coff_sparc_howto_table)
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/ sizeof (coff_sparc_howto_table[0]));
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i++)
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if (coff_sparc_howto_table[i].name != NULL
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&& strcasecmp (coff_sparc_howto_table[i].name, r_name) == 0)
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return &coff_sparc_howto_table[i];
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return NULL;
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}
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#define coff_bfd_reloc_name_lookup coff_sparc_reloc_name_lookup
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static void
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rtype2howto (arelent *cache_ptr, struct internal_reloc *dst)
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{
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BFD_ASSERT (dst->r_type < (unsigned int) R_SPARC_max);
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cache_ptr->howto = &coff_sparc_howto_table[dst->r_type];
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}
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#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
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#define SWAP_IN_RELOC_OFFSET H_GET_32
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#define SWAP_OUT_RELOC_OFFSET H_PUT_32
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#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
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cache_ptr->addend = reloc.r_offset;
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/* Clear the r_spare field in relocs. */
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#define SWAP_OUT_RELOC_EXTRA(abfd,src,dst) \
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do { \
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dst->r_spare[0] = 0; \
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dst->r_spare[1] = 0; \
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} while (0)
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#define __A_MAGIC_SET__
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/* Enable Sparc-specific hacks in coffcode.h. */
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#define COFF_SPARC
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#define bfd_pe_print_pdata NULL
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#include "coffcode.h"
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#ifndef TARGET_SYM
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#define TARGET_SYM sparc_coff_vec
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#endif
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#ifndef TARGET_NAME
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#define TARGET_NAME "coff-sparc"
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#endif
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CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, D_PAGED, 0, '_', NULL, COFF_SWAP_TABLE)
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