X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Fi386aout.c;h=b00dc9d9d647a2a3cc060a8ebdc9d9627f11634e;hb=7190276c52b9d86a52aae73d3a0f8b56e7a1f4f1;hp=8ca794131ccf63a5c25eccc99d88f2c50b6a5386;hpb=6a469027327f00bc96ad8bb3d17d15d8c41ab20f;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/i386aout.c b/bfd/i386aout.c index 8ca794131c..b00dc9d9d6 100644 --- a/bfd/i386aout.c +++ b/bfd/i386aout.c @@ -1,158 +1,88 @@ /* BFD back-end for i386 a.out binaries. - Copyright (C) 1990, 1991 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 PAGE_SIZE 4096 -#define SEGMENT_SIZE PAGE_SIZE -#define TEXT_START_ADDR 0x8000 -#define ARCH 32 -#define BYTES_IN_WORD 4 - -#include -#include + Copyright (C) 1990-2019 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 3 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., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ + + +/* The only 386 aout system we have here is GO32 from DJ. + These numbers make BFD work with that. If your aout 386 system + doesn't work with these, we'll have to split them into different + files. Send me (sac@cygnus.com) the runes to make it work on your + system, and I'll stick it in for the next release. */ + +#define N_HEADER_IN_TEXT(x) 0 +#define N_TXTOFF(x) 0x20 +#define N_TXTADDR(x) (N_MAGIC (x) == ZMAGIC ? 0x1020 : 0) +#define N_TXTSIZE(x) ((x)->a_text) +#define TARGET_PAGE_SIZE 4096 +#define SEGMENT_SIZE 0x400000 +#define DEFAULT_ARCH bfd_arch_i386 + +/* Do not "beautify" the CONCAT* macro args. Traditional C will not + remove whitespace added here, and thus will fail to concatenate + the tokens. */ +#define MY(OP) CONCAT2 (i386_aout_,OP) +#define TARGETNAME "a.out-i386" +#define NO_WRITE_HEADER_KLUDGE 1 + +#include "sysdep.h" #include "bfd.h" #include "libbfd.h" -#include "aout64.h" - -/**From: bothner@cs.wisc.edu***********************************************/ -#undef N_TXTOFF -#define N_TXTOFF(x) ( (N_MAGIC((x)) == ZMAGIC) ? PAGE_SIZE : EXEC_BYTES_SIZE) -/**************************************************************************/ +#include "aout/aout64.h" +#include "libaout.h" -#include "stab.gnu.h" -#include "ar.h" -#include "libaout.h" /* BFD a.out internal data structures */ +/* Set the machine type correctly. */ -bfd_target *aout386_callback (); - -bfd_target * -DEFUN(aout386_object_p,(abfd), - bfd *abfd) +static bfd_boolean +i386aout_write_object_contents (bfd *abfd) { struct external_exec exec_bytes; - struct internal_exec exec; + struct internal_exec *execp = exec_hdr (abfd); - if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd) - != EXEC_BYTES_SIZE) { - bfd_error = wrong_format; - return 0; - } + N_SET_MACHTYPE (execp, M_386); - exec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info); + obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; - if (N_BADMAG (exec)) return 0; + WRITE_HEADERS (abfd, execp); - NAME(aout,swap_exec_header_in)(abfd, &exec_bytes, &exec); - return aout_32_some_aout_object_p (abfd, &exec, aout386_callback); + return TRUE; } -/* Finish up the reading of the file header */ -bfd_target * -DEFUN(aout386_callback,(abfd), - bfd *abfd) -{ - struct internal_exec *execp = exec_hdr (abfd); - - WORK_OUT_FILE_POSITIONS(abfd, execp) ; - - /* Determine the architecture and machine type of the object file. */ - bfd_default_set_arch_mach(abfd, bfd_arch_i386, 0); - - return abfd->xvec; -} +#define MY_write_object_contents i386aout_write_object_contents +#define MY_backend_data & MY (backend_data) -/* Write an object file. - Section contents have already been written. We write the - file header, symbols, and relocation. */ +static const struct aout_backend_data MY (backend_data); -boolean -DEFUN(aout386_write_object_contents,(abfd), - bfd *abfd) -{ - bfd_size_type data_pad = 0; - struct external_exec exec_bytes; - struct internal_exec *execp = exec_hdr (abfd); +#include "aout-target.h" - WRITE_HEADERS(abfd, execp); - return true; -} - -/* Transfer vector */ - -/* We use BSD archive files. */ -#define aout386_openr_next_archived_file bfd_generic_openr_next_archived_file -#define aout386_generic_stat_arch_elt bfd_generic_stat_arch_elt -#define aout386_slurp_armap bfd_slurp_bsd_armap -#define aout386_slurp_extended_name_table bfd_true -#define aout386_write_armap bsd_write_armap -#define aout386_truncate_arname bfd_bsd_truncate_arname - -/* We don't support core files here. */ -#define aout386_core_file_failing_command _bfd_dummy_core_file_failing_command -#define aout386_core_file_failing_signal _bfd_dummy_core_file_failing_signal -#define aout386_core_file_matches_executable_p \ - _bfd_dummy_core_file_matches_executable_p -#define aout386_core_file_p _bfd_dummy_target - -#define aout386_bfd_debug_info_start bfd_void -#define aout386_bfd_debug_info_end bfd_void -#define aout386_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void - -#define aout386_mkobject aout_32_mkobject -#define aout386_close_and_cleanup aout_32_close_and_cleanup -#define aout386_set_section_contents aout_32_set_section_contents -#define aout386_get_section_contents aout_32_get_section_contents -#define aout386_new_section_hook aout_32_new_section_hook -#define aout386_get_symtab_upper_bound aout_32_get_symtab_upper_bound -#define aout386_get_symtab aout_32_get_symtab -#define aout386_get_reloc_upper_bound aout_32_get_reloc_upper_bound -#define aout386_canonicalize_reloc aout_32_canonicalize_reloc -#define aout386_make_empty_symbol aout_32_make_empty_symbol -#define aout386_print_symbol aout_32_print_symbol -#define aout386_get_lineno aout_32_get_lineno -#define aout386_set_arch_mach aout_32_set_arch_mach -#define aout386_find_nearest_line aout_32_find_nearest_line -#define aout386_sizeof_headers aout_32_sizeof_headers - -bfd_target i386aout_vec = /* Intel 386 running a.out, embedded. */ +static const struct aout_backend_data MY (backend_data) = { - "a.out-i386", /* name */ - bfd_target_aout_flavour, - false, /* target byte order */ - false, /* target headers byte order */ - (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 */ - ' ', /* ar_pad_char */ - 16, /* ar_max_namelen */ - 1, /* minimum alignment */ - /* data swap routines */ - _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, - /* header swap routines */ - _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, - - {_bfd_dummy_target, aout386_object_p, /* bfd_check_format */ - bfd_generic_archive_p, aout386_core_file_p}, - {bfd_false, aout386_mkobject, /* bfd_set_format */ - _bfd_generic_mkarchive, bfd_false}, - {bfd_false, aout386_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - JUMP_TABLE(aout386) + 0, /* Zmagic contiguous. */ + 1, /* Text incl header. */ + 0, /* Entry is text address. */ + 0, /* Exec_hdr_flags. */ + 0, /* Text vma? */ + MY (set_sizes), + 1, /* Exec header not counted. */ + 0, /* Add_dynamic_symbols. */ + 0, /* Add_one_symbol. */ + 0, /* Link_dynamic_object. */ + 0, /* Write_dynamic_symbol. */ + 0, /* Check_dynamic_reloc. */ + 0 /* Finish_dynamic_link. */ };