forked from KolibriOS/kolibrios
416 lines
14 KiB
C
416 lines
14 KiB
C
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/* coff object file format
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Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
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1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009
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Free Software Foundation, Inc.
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This file is part of GAS.
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GAS 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, or (at your option)
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any later version.
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GAS 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 GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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#ifndef OBJ_FORMAT_H
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#define OBJ_FORMAT_H
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#define OBJ_COFF 1
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#include "targ-cpu.h"
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/* This internal_lineno crap is to stop namespace pollution from the
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bfd internal coff headerfile. */
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#define internal_lineno bfd_internal_lineno
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#include "coff/internal.h"
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#undef internal_lineno
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/* CPU-specific setup: */
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#ifdef TC_ARM
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#include "coff/arm.h"
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#ifndef TARGET_FORMAT
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#define TARGET_FORMAT "coff-arm"
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#endif
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#endif
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#ifdef TC_PPC
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#ifdef TE_PE
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#include "coff/powerpc.h"
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#else
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#include "coff/rs6000.h"
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#endif
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#endif
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#ifdef TC_SPARC
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#include "coff/sparc.h"
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#endif
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#ifdef TC_I386
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#ifdef TE_PEP
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#include "coff/x86_64.h"
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#else
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#include "coff/i386.h"
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#endif
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#ifndef TARGET_FORMAT
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#ifdef TE_PEP
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#define TARGET_FORMAT "coff-x86-64"
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#else
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#define TARGET_FORMAT "coff-i386"
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#endif
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#endif
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#endif
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#ifdef TC_M68K
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#include "coff/m68k.h"
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#ifndef TARGET_FORMAT
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#define TARGET_FORMAT "coff-m68k"
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#endif
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#endif
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#ifdef TC_OR32
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#include "coff/or32.h"
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#define TARGET_FORMAT "coff-or32-big"
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#endif
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#ifdef TC_I960
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#include "coff/i960.h"
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#define TARGET_FORMAT "coff-Intel-little"
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#endif
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#ifdef TC_Z80
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#include "coff/z80.h"
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#define TARGET_FORMAT "coff-z80"
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#endif
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#ifdef TC_Z8K
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#include "coff/z8k.h"
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#define TARGET_FORMAT "coff-z8k"
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#endif
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#ifdef TC_H8300
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#include "coff/h8300.h"
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#define TARGET_FORMAT "coff-h8300"
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#endif
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#ifdef TC_H8500
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#include "coff/h8500.h"
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#define TARGET_FORMAT "coff-h8500"
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#endif
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#ifdef TC_SH
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#ifdef TE_PE
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#define COFF_WITH_PE
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#endif
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#include "coff/sh.h"
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#ifdef TE_PE
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#define TARGET_FORMAT "pe-shl"
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#else
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#define TARGET_FORMAT \
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(!target_big_endian \
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? (sh_small ? "coff-shl-small" : "coff-shl") \
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: (sh_small ? "coff-sh-small" : "coff-sh"))
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#endif
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#endif
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#ifdef TC_MIPS
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#define COFF_WITH_PE
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#include "coff/mipspe.h"
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#undef TARGET_FORMAT
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#define TARGET_FORMAT "pe-mips"
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#endif
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#ifdef TC_TIC30
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#include "coff/tic30.h"
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#define TARGET_FORMAT "coff-tic30"
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#endif
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#ifdef TC_TIC4X
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#include "coff/tic4x.h"
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#define TARGET_FORMAT "coff2-tic4x"
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#endif
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#ifdef TC_TIC54X
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#include "coff/tic54x.h"
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#define TARGET_FORMAT "coff1-c54x"
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#endif
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#ifdef TC_MCORE
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#include "coff/mcore.h"
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#ifndef TARGET_FORMAT
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#define TARGET_FORMAT "pe-mcore"
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#endif
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#endif
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#ifdef TE_PE
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#define obj_set_weak_hook pecoff_obj_set_weak_hook
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#define obj_clear_weak_hook pecoff_obj_clear_weak_hook
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#endif
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#ifndef OBJ_COFF_MAX_AUXENTRIES
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#define OBJ_COFF_MAX_AUXENTRIES 1
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#endif
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#define obj_symbol_new_hook coff_obj_symbol_new_hook
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#define obj_symbol_clone_hook coff_obj_symbol_clone_hook
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#define obj_read_begin_hook coff_obj_read_begin_hook
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#include "bfd/libcoff.h"
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#define OUTPUT_FLAVOR bfd_target_coff_flavour
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/* Alter the field names, for now, until we've fixed up the other
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references to use the new name. */
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#ifdef TC_I960
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#define TC_SYMFIELD_TYPE symbolS *
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#define sy_tc bal
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#endif
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#define OBJ_SYMFIELD_TYPE unsigned long
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#define sy_obj sy_obj_flags
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/* We can't use the predefined section symbols in bfd/section.c, as
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COFF symbols have extra fields. See bfd/libcoff.h:coff_symbol_type. */
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#ifndef obj_sec_sym_ok_for_reloc
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#define obj_sec_sym_ok_for_reloc(SEC) ((SEC)->owner != 0)
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#endif
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#define SYM_AUXENT(S) \
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(&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent)
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#define SYM_AUXINFO(S) \
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(&coffsymbol (symbol_get_bfdsym (S))->native[1])
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/* The number of auxiliary entries. */
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#define S_GET_NUMBER_AUXILIARY(s) \
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(coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux)
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/* The number of auxiliary entries. */
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#define S_SET_NUMBER_AUXILIARY(s, v) (S_GET_NUMBER_AUXILIARY (s) = (v))
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/* True if a symbol name is in the string table, i.e. its length is > 8. */
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#define S_IS_STRING(s) (strlen (S_GET_NAME (s)) > 8 ? 1 : 0)
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/* Auxiliary entry macros. SA_ stands for symbol auxiliary. */
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/* Omit the tv related fields. */
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/* Accessors. */
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#define SA_GET_SYM_TAGNDX(s) (SYM_AUXENT (s)->x_sym.x_tagndx.l)
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#define SA_GET_SYM_LNNO(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
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#define SA_GET_SYM_SIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
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#define SA_GET_SYM_FSIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
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#define SA_GET_SYM_LNNOPTR(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
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#define SA_GET_SYM_ENDNDX(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx)
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#define SA_GET_SYM_DIMEN(s,i) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
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#define SA_GET_FILE_FNAME(s) (SYM_AUXENT (s)->x_file.x_fname)
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#define SA_GET_SCN_SCNLEN(s) (SYM_AUXENT (s)->x_scn.x_scnlen)
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#define SA_GET_SCN_NRELOC(s) (SYM_AUXENT (s)->x_scn.x_nreloc)
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#define SA_GET_SCN_NLINNO(s) (SYM_AUXENT (s)->x_scn.x_nlinno)
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#define SA_SET_SYM_LNNO(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno = (v))
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#define SA_SET_SYM_SIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size = (v))
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#define SA_SET_SYM_FSIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize = (v))
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#define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr = (v))
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#define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)] = (v))
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#define SA_SET_FILE_FNAME(s,v) strncpy (SYM_AUXENT (s)->x_file.x_fname, (v), FILNMLEN)
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#define SA_SET_SCN_SCNLEN(s,v) (SYM_AUXENT (s)->x_scn.x_scnlen = (v))
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#define SA_SET_SCN_NRELOC(s,v) (SYM_AUXENT (s)->x_scn.x_nreloc = (v))
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#define SA_SET_SCN_NLINNO(s,v) (SYM_AUXENT (s)->x_scn.x_nlinno = (v))
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/* Internal use only definitions. SF_ stands for symbol flags.
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These values can be assigned to sy_symbol.ost_flags field of a symbolS.
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You'll break i960 if you shift the SYSPROC bits anywhere else. for
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more on the balname/callname hack, see tc-i960.h. b.out is done
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differently. */
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#define SF_I960_MASK 0x000001ff /* Bits 0-8 are used by the i960 port. */
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#define SF_SYSPROC 0x0000003f /* bits 0-5 are used to store the sysproc number. */
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#define SF_IS_SYSPROC 0x00000040 /* bit 6 marks symbols that are sysprocs. */
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#define SF_BALNAME 0x00000080 /* bit 7 marks BALNAME symbols. */
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#define SF_CALLNAME 0x00000100 /* bit 8 marks CALLNAME symbols. */
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#define SF_NORMAL_MASK 0x0000ffff /* bits 12-15 are general purpose. */
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#define SF_STATICS 0x00001000 /* Mark the .text & all symbols. */
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#define SF_DEFINED 0x00002000 /* Symbol is defined in this file. */
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#define SF_STRING 0x00004000 /* Symbol name length > 8. */
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#define SF_LOCAL 0x00008000 /* Symbol must not be emitted. */
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#define SF_DEBUG_MASK 0xffff0000 /* bits 16-31 are debug info. */
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#define SF_FUNCTION 0x00010000 /* The symbol is a function. */
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#define SF_PROCESS 0x00020000 /* Process symbol before write. */
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#define SF_TAGGED 0x00040000 /* Is associated with a tag. */
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#define SF_TAG 0x00080000 /* Is a tag. */
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#define SF_DEBUG 0x00100000 /* Is in debug or abs section. */
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#define SF_GET_SEGMENT 0x00200000 /* Get the section of the forward symbol. */
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/* All other bits are unused. */
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/* Accessors. */
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#define SF_GET(s) (* symbol_get_obj (s))
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#define SF_GET_DEBUG(s) (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING)
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#define SF_SET_DEBUG(s) (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING)
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#define SF_GET_NORMAL_FIELD(s) (SF_GET (s) & SF_NORMAL_MASK)
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#define SF_GET_DEBUG_FIELD(s) (SF_GET (s) & SF_DEBUG_MASK)
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#define SF_GET_FILE(s) (SF_GET (s) & SF_FILE)
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#define SF_GET_STATICS(s) (SF_GET (s) & SF_STATICS)
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#define SF_GET_DEFINED(s) (SF_GET (s) & SF_DEFINED)
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#define SF_GET_STRING(s) (SF_GET (s) & SF_STRING)
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#define SF_GET_LOCAL(s) (SF_GET (s) & SF_LOCAL)
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#define SF_GET_FUNCTION(s) (SF_GET (s) & SF_FUNCTION)
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#define SF_GET_PROCESS(s) (SF_GET (s) & SF_PROCESS)
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#define SF_GET_TAGGED(s) (SF_GET (s) & SF_TAGGED)
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#define SF_GET_TAG(s) (SF_GET (s) & SF_TAG)
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#define SF_GET_GET_SEGMENT(s) (SF_GET (s) & SF_GET_SEGMENT)
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#define SF_GET_I960(s) (SF_GET (s) & SF_I960_MASK) /* Used by i960. */
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#define SF_GET_BALNAME(s) (SF_GET (s) & SF_BALNAME) /* Used by i960. */
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#define SF_GET_CALLNAME(s) (SF_GET (s) & SF_CALLNAME) /* Used by i960. */
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#define SF_GET_IS_SYSPROC(s) (SF_GET (s) & SF_IS_SYSPROC) /* Used by i960. */
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#define SF_GET_SYSPROC(s) (SF_GET (s) & SF_SYSPROC) /* Used by i960. */
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/* Modifiers. */
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#define SF_SET(s,v) (SF_GET (s) = (v))
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#define SF_SET_NORMAL_FIELD(s,v)(SF_GET (s) |= ((v) & SF_NORMAL_MASK))
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#define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
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#define SF_SET_FILE(s) (SF_GET (s) |= SF_FILE)
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#define SF_SET_STATICS(s) (SF_GET (s) |= SF_STATICS)
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#define SF_SET_DEFINED(s) (SF_GET (s) |= SF_DEFINED)
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#define SF_SET_STRING(s) (SF_GET (s) |= SF_STRING)
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#define SF_SET_LOCAL(s) (SF_GET (s) |= SF_LOCAL)
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#define SF_CLEAR_LOCAL(s) (SF_GET (s) &= ~SF_LOCAL)
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#define SF_SET_FUNCTION(s) (SF_GET (s) |= SF_FUNCTION)
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#define SF_SET_PROCESS(s) (SF_GET (s) |= SF_PROCESS)
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#define SF_SET_TAGGED(s) (SF_GET (s) |= SF_TAGGED)
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#define SF_SET_TAG(s) (SF_GET (s) |= SF_TAG)
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#define SF_SET_GET_SEGMENT(s) (SF_GET (s) |= SF_GET_SEGMENT)
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#define SF_SET_I960(s,v) (SF_GET (s) |= ((v) & SF_I960_MASK)) /* Used by i960. */
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#define SF_SET_BALNAME(s) (SF_GET (s) |= SF_BALNAME) /* Used by i960. */
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#define SF_SET_CALLNAME(s) (SF_GET (s) |= SF_CALLNAME) /* Used by i960. */
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#define SF_SET_IS_SYSPROC(s) (SF_GET (s) |= SF_IS_SYSPROC) /* Used by i960. */
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#define SF_SET_SYSPROC(s,v) (SF_GET (s) |= ((v) & SF_SYSPROC)) /* Used by i960. */
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/* Line number handling. */
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extern int text_lineno_number;
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extern int coff_line_base;
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extern int coff_n_line_nos;
|
||
|
|
extern symbolS *coff_last_function;
|
||
|
|
|
||
|
|
#define obj_emit_lineno(WHERE, LINE, FILE_START) abort ()
|
||
|
|
#define obj_app_file(name, app) c_dot_file_symbol (name, app)
|
||
|
|
#define obj_frob_symbol(S,P) coff_frob_symbol (S, & P)
|
||
|
|
#define obj_frob_section(S) coff_frob_section (S)
|
||
|
|
#define obj_frob_file_after_relocs() coff_frob_file_after_relocs ()
|
||
|
|
#ifndef obj_adjust_symtab
|
||
|
|
#define obj_adjust_symtab() coff_adjust_symtab ()
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Forward the segment of a forwarded symbol, handle assignments that
|
||
|
|
just copy symbol values, etc. */
|
||
|
|
#ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
|
||
|
|
#ifndef TE_I386AIX
|
||
|
|
#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
|
||
|
|
(SF_GET_GET_SEGMENT (dest) \
|
||
|
|
? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
|
||
|
|
: 0)
|
||
|
|
#else
|
||
|
|
#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
|
||
|
|
(SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \
|
||
|
|
? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
|
||
|
|
: 0)
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Sanity check. */
|
||
|
|
|
||
|
|
#ifdef TC_I960
|
||
|
|
#ifndef C_LEAFSTAT
|
||
|
|
hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
|
||
|
|
#endif /* no C_LEAFSTAT */
|
||
|
|
#endif /* TC_I960 */
|
||
|
|
|
||
|
|
extern const pseudo_typeS coff_pseudo_table[];
|
||
|
|
|
||
|
|
#ifndef obj_pop_insert
|
||
|
|
#define obj_pop_insert() pop_insert (coff_pseudo_table)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK
|
||
|
|
to redefine the symbol later on. This can happen if C symbols use
|
||
|
|
a prefix, and a symbol is defined both with and without the prefix,
|
||
|
|
as in start/_start/__start in gcc/libgcc1-test.c. */
|
||
|
|
#define RESOLVE_SYMBOL_REDEFINITION(sym) \
|
||
|
|
(SF_GET_GET_SEGMENT (sym) \
|
||
|
|
? (sym->sy_frag = frag_now, \
|
||
|
|
S_SET_VALUE (sym, frag_now_fix ()), \
|
||
|
|
S_SET_SEGMENT (sym, now_seg), \
|
||
|
|
0) \
|
||
|
|
: 0)
|
||
|
|
|
||
|
|
/* Stabs in a coff file go into their own section. */
|
||
|
|
#define SEPARATE_STAB_SECTIONS 1
|
||
|
|
|
||
|
|
/* We need 12 bytes at the start of the section to hold some initial
|
||
|
|
information. */
|
||
|
|
#define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg)
|
||
|
|
|
||
|
|
/* Store the number of relocations in the section aux entry. */
|
||
|
|
#define SET_SECTION_RELOCS(sec, relocs, n) \
|
||
|
|
SA_SET_SCN_NRELOC (section_symbol (sec), n)
|
||
|
|
|
||
|
|
#define obj_app_file(name, app) c_dot_file_symbol (name, app)
|
||
|
|
|
||
|
|
extern int S_SET_DATA_TYPE (symbolS *, int);
|
||
|
|
extern int S_SET_STORAGE_CLASS (symbolS *, int);
|
||
|
|
extern int S_GET_STORAGE_CLASS (symbolS *);
|
||
|
|
extern void SA_SET_SYM_ENDNDX (symbolS *, symbolS *);
|
||
|
|
extern void coff_add_linesym (symbolS *);
|
||
|
|
extern void c_dot_file_symbol (const char *, int);
|
||
|
|
extern void coff_frob_symbol (symbolS *, int *);
|
||
|
|
extern void coff_adjust_symtab (void);
|
||
|
|
extern void coff_frob_section (segT);
|
||
|
|
extern void coff_adjust_section_syms (bfd *, asection *, void *);
|
||
|
|
extern void coff_frob_file_after_relocs (void);
|
||
|
|
extern void coff_obj_symbol_new_hook (symbolS *);
|
||
|
|
extern void coff_obj_symbol_clone_hook (symbolS *, symbolS *);
|
||
|
|
extern void coff_obj_read_begin_hook (void);
|
||
|
|
#ifdef TE_PE
|
||
|
|
extern void pecoff_obj_set_weak_hook (symbolS *);
|
||
|
|
extern void pecoff_obj_clear_weak_hook (symbolS *);
|
||
|
|
#endif
|
||
|
|
extern void obj_coff_section (int);
|
||
|
|
extern segT obj_coff_add_segment (const char *);
|
||
|
|
extern void obj_coff_section (int);
|
||
|
|
extern void c_dot_file_symbol (const char *, int);
|
||
|
|
extern segT s_get_segment (symbolS *);
|
||
|
|
#ifndef tc_coff_symbol_emit_hook
|
||
|
|
extern void tc_coff_symbol_emit_hook (symbolS *);
|
||
|
|
#endif
|
||
|
|
extern void obj_coff_pe_handle_link_once (void);
|
||
|
|
extern void obj_coff_init_stab_section (segT);
|
||
|
|
extern void c_section_header (struct internal_scnhdr *,
|
||
|
|
char *, long, long, long, long,
|
||
|
|
long, long, long, long);
|
||
|
|
extern void obj_coff_seh_do_final (void);
|
||
|
|
|
||
|
|
#ifndef obj_coff_generate_pdata
|
||
|
|
#define obj_coff_generate_pdata obj_coff_seh_do_final
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* OBJ_FORMAT_H */
|