diff options
Diffstat (limited to 'bfd/m68klynx.c')
| -rw-r--r-- | bfd/m68klynx.c | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/bfd/m68klynx.c b/bfd/m68klynx.c new file mode 100644 index 0000000..73aced8 --- /dev/null +++ b/bfd/m68klynx.c @@ -0,0 +1,264 @@ +/* BFD back-end for m68k binaries under Lynx. + Copyright (C) 1990, 1991, 1992 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. */ + +#define BYTES_IN_WORD 4 +#define ARCH 32 +#define N_SHARED_LIB(x) 0 + +#define TEXT_START_ADDR 0 +#define PAGE_SIZE 4096 +#define SEGMENT_SIZE PAGE_SIZE +#define DEFAULT_ARCH bfd_arch_m68k + +#define MY(OP) CAT(m68klynx_aout,OP) +#define TARGETNAME "a.out-m68k-lynx" + +#include "bfd.h" +#include "sysdep.h" +#include "libbfd.h" + +#include "libaout.h" + +#define MY_BFD_TARGET + +#include "aout-target.h" + +bfd_target m68klynx_aout_vec = +{ + TARGETNAME, /* name */ + bfd_target_aout_flavour, +#ifdef TARGET_IS_BIG_ENDIAN_P + true, /* target byte order (big) */ + true, /* target headers byte order (big) */ +#else + false, /* target byte order (little) */ + false, /* target headers byte order (little) */ +#endif + (HAS_RELOC | EXEC_P | /* object flags */ + HAS_LINENO | HAS_DEBUG | + HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED), + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ + MY_symbol_leading_char, + AR_PAD_CHAR, /* ar_pad_char */ + 15, /* ar_max_namelen */ + 3, /* minimum alignment */ +#ifdef TARGET_IS_BIG_ENDIAN_P + bfd_getb64, bfd_getb_signed_64, bfd_putb64, + bfd_getb32, bfd_getb_signed_32, bfd_putb32, + bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ + bfd_getb64, bfd_getb_signed_64, bfd_putb64, + bfd_getb32, bfd_getb_signed_32, bfd_putb32, + bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ +#else + bfd_getl64, bfd_getl_signed_64, bfd_putl64, + bfd_getl32, bfd_getl_signed_32, bfd_putl32, + bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ + bfd_getl64, bfd_getl_signed_64, bfd_putl64, + bfd_getl32, bfd_getl_signed_32, bfd_putl32, + bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ +#endif + {_bfd_dummy_target, MY_object_p, /* bfd_check_format */ + bfd_generic_archive_p, MY_core_file_p}, + {bfd_false, MY_mkobject, /* bfd_set_format */ + _bfd_generic_mkarchive, bfd_false}, + {bfd_false, MY_write_object_contents, /* bfd_write_contents */ + _bfd_write_archive_contents, bfd_false}, + + MY_core_file_failing_command, + MY_core_file_failing_signal, + MY_core_file_matches_executable_p, + MY_slurp_armap, + MY_slurp_extended_name_table, + MY_truncate_arname, + MY_write_armap, + MY_close_and_cleanup, + MY_set_section_contents, + MY_get_section_contents, + MY_new_section_hook, + MY_get_symtab_upper_bound, + MY_get_symtab, + MY_get_reloc_upper_bound, + MY_canonicalize_reloc, + MY_make_empty_symbol, + MY_print_symbol, + MY_get_symbol_info, + MY_get_lineno, + MY_set_arch_mach, + MY_openr_next_archived_file, + MY_find_nearest_line, + MY_generic_stat_arch_elt, + MY_sizeof_headers, + MY_bfd_debug_info_start, + MY_bfd_debug_info_end, + MY_bfd_debug_info_accumulate, + bfd_generic_get_relocated_section_contents, + bfd_generic_relax_section, + bfd_generic_seclet_link, + MY_reloc_howto_type_lookup, + MY_make_debug_symbol, + (PTR) MY_backend_data, +}; + +/* BFD back-end for Motorola 68000 COFF binaries. + Copyright 1990, 1991, 1992, 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#undef OMAGIC +#undef N_ABS +#undef exec_hdr +#undef obj_sym_filepos + +#include "obstack.h" +#include "coff/m68k.h" +#include "coff/internal.h" +#include "libcoff.h" + +#define COFF_LONG_FILENAMES + +#ifdef ONLY_DECLARE_RELOCS +extern reloc_howto_type m68kcoff_howto_table[]; +#else +reloc_howto_type m68kcoff_howto_table[] = +{ + HOWTO(R_RELBYTE, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "8", true, 0x000000ff,0x000000ff, false), + HOWTO(R_RELWORD, 0, 1, 16, false, 0, complain_overflow_bitfield, 0, "16", true, 0x0000ffff,0x0000ffff, false), + HOWTO(R_RELLONG, 0, 2, 32, false, 0, complain_overflow_bitfield, 0, "32", true, 0xffffffff,0xffffffff, false), + HOWTO(R_PCRBYTE, 0, 0, 8, true, 0, complain_overflow_signed, 0, "DISP8", true, 0x000000ff,0x000000ff, false), + HOWTO(R_PCRWORD, 0, 1, 16, true, 0, complain_overflow_signed, 0, "DISP16", true, 0x0000ffff,0x0000ffff, false), + HOWTO(R_PCRLONG, 0, 2, 32, true, 0, complain_overflow_signed, 0, "DISP32", true, 0xffffffff,0xffffffff, false), + HOWTO(R_RELLONG_NEG, 0, -2, 32, false, 0, complain_overflow_bitfield, 0, "-32", true, 0xffffffff,0xffffffff, false), +}; +#endif /* not ONLY_DECLARE_RELOCS */ + +#ifndef BADMAG +#define BADMAG(x) M68KBADMAG(x) +#endif +#define M68 1 /* Customize coffcode.h */ + +/* Turn a howto into a reloc number */ + +#ifdef ONLY_DECLARE_RELOCS +extern void m68k_rtype2howto PARAMS ((arelent *internal, int relocentry)); +extern int m68k_howto2rtype PARAMS ((CONST struct reloc_howto_struct *)); +#else +void +m68k_rtype2howto(internal, relocentry) + arelent *internal; + int relocentry; +{ + switch (relocentry) + { + case R_RELBYTE: internal->howto = m68kcoff_howto_table + 0; break; + case R_RELWORD: internal->howto = m68kcoff_howto_table + 1; break; + case R_RELLONG: internal->howto = m68kcoff_howto_table + 2; break; + case R_PCRBYTE: internal->howto = m68kcoff_howto_table + 3; break; + case R_PCRWORD: internal->howto = m68kcoff_howto_table + 4; break; + case R_PCRLONG: internal->howto = m68kcoff_howto_table + 5; break; + case R_RELLONG_NEG: internal->howto = m68kcoff_howto_table + 6; break; + } +} + +int +m68k_howto2rtype (internal) + CONST struct reloc_howto_struct *internal; +{ + if (internal->pc_relative) + { + switch (internal->bitsize) + { + case 32: return R_PCRLONG; + case 16: return R_PCRWORD; + case 8: return R_PCRBYTE; + } + } + else + { + switch (internal->bitsize) + { + case 32: return R_RELLONG; + case 16: return R_RELWORD; + case 8: return R_RELBYTE; + } + } + return R_RELLONG; +} +#endif /* not ONLY_DECLARE_RELOCS */ + +#define RTYPE2HOWTO(internal, relocentry) \ + m68k_rtype2howto(internal, (relocentry)->r_type) + +#define SELECT_RELOC(external, internal) \ + external = m68k_howto2rtype(internal); + +#include "coffcode.h" + +bfd_target m68klynx_coff_vec = +{ + "coff-m68k-lynx", + + bfd_target_coff_flavour, + true, /* data byte order is big */ + true, /* header byte order is big */ + + (HAS_RELOC | EXEC_P | /* object flags */ + HAS_LINENO | HAS_DEBUG | + HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT), + + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ +#ifdef NAMES_HAVE_UNDERSCORE + '_', +#else + 0, /* leading underscore */ +#endif + '/', /* ar_pad_char */ + 15, /* ar_max_namelen */ + 1, /* minimum section alignment */ + bfd_getb64, bfd_getb_signed_64, bfd_putb64, + bfd_getb32, bfd_getb_signed_32, bfd_putb32, + bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ + bfd_getb64, bfd_getb_signed_64, bfd_putb64, + bfd_getb32, bfd_getb_signed_32, bfd_putb32, + bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ + + {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ + bfd_generic_archive_p, _bfd_dummy_target}, + {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ + bfd_false}, + {bfd_false, coff_write_object_contents, /* bfd_write_contents */ + _bfd_write_archive_contents, bfd_false}, + + JUMP_TABLE(coff), + COFF_SWAP_TABLE + }; |