88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
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/* BFD back-end for i386 a.out binaries.
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Copyright (C) 1990-2022 Free Software Foundation, Inc.
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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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/* The only 386 aout system we have here is GO32 from DJ.
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These numbers make BFD work with that. If your aout 386 system
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doesn't work with these, we'll have to split them into different
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files. Send me (sac@cygnus.com) the runes to make it work on your
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system, and I'll stick it in for the next release. */
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#define N_HEADER_IN_TEXT(x) 0
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#define N_TXTOFF(x) 0x20
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#define N_TXTADDR(x) (N_MAGIC (x) == ZMAGIC ? 0x1020 : 0)
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#define N_TXTSIZE(x) ((x)->a_text)
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#define TARGET_PAGE_SIZE 4096
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#define SEGMENT_SIZE 0x400000
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#define DEFAULT_ARCH bfd_arch_i386
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/* Do not "beautify" the CONCAT* macro args. Traditional C will not
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remove whitespace added here, and thus will fail to concatenate
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the tokens. */
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#define MY(OP) CONCAT2 (i386_aout_,OP)
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#define TARGETNAME "a.out-i386"
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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 "aout/aout64.h"
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#include "libaout.h"
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/* Set the machine type correctly. */
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static bool
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i386aout_write_object_contents (bfd *abfd)
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{
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struct external_exec exec_bytes;
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struct internal_exec *execp = exec_hdr (abfd);
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N_SET_MACHTYPE (execp, M_386);
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obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
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WRITE_HEADERS (abfd, execp);
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return true;
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}
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#define MY_write_object_contents i386aout_write_object_contents
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#define MY_backend_data & MY (backend_data)
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static const struct aout_backend_data MY (backend_data);
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#include "aout-target.h"
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static const struct aout_backend_data MY (backend_data) =
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{
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0, /* Zmagic contiguous. */
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1, /* Text incl header. */
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0, /* Entry is text address. */
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0, /* Exec_hdr_flags. */
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0, /* Text vma? */
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MY (set_sizes),
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1, /* Exec header not counted. */
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0, /* Add_dynamic_symbols. */
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0, /* Add_one_symbol. */
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0, /* Link_dynamic_object. */
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0, /* Write_dynamic_symbol. */
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0, /* Check_dynamic_reloc. */
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0 /* Finish_dynamic_link. */
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};
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