894 lines
32 KiB
C
894 lines
32 KiB
C
/* 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
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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 2, 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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#ifndef BFD_ASSEMBLER
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#define WORKING_DOT_WORD
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#define WARN_SIGNED_OVERFLOW_WORD
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#define OBJ_COFF_OMIT_OPTIONAL_HEADER
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#define BFD_HEADERS
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#define BFD
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#endif
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#include "targ-cpu.h"
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#include "bfd.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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#include "coff/i386.h"
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#ifdef TE_PE
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#define TARGET_FORMAT "pe-i386"
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#endif
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#ifndef TARGET_FORMAT
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#define TARGET_FORMAT "coff-i386"
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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_A29K
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#include "coff/a29k.h"
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#define TARGET_FORMAT "coff-a29k-big"
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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_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_MAXQ20
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#include "coff/maxq.h"
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#define TARGET_FORMAT "coff-maxq"
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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_M88K
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#include "coff/m88k.h"
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#define TARGET_FORMAT "coff-m88kbcs"
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#endif
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#ifdef TC_W65
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#include "coff/w65.h"
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#define TARGET_FORMAT "coff-w65"
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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_TIC80
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#include "coff/tic80.h"
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#define TARGET_FORMAT "coff-tic80"
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#define ALIGNMENT_IN_S_FLAGS 1
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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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/* PE weak symbols need USE_UNIQUE. */
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#define USE_UNIQUE 1
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#endif
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/* Targets may also set this. Also, if BFD_ASSEMBLER is defined, this
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will already have been defined. */
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#undef SYMBOLS_NEED_BACKPOINTERS
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#define SYMBOLS_NEED_BACKPOINTERS 1
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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_read_begin_hook coff_obj_read_begin_hook
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/* This file really contains two implementations of the COFF back end.
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They are in the process of being merged, but this is only a
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preliminary, mechanical merging. Many definitions that are
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identical between the two are still found in both versions.
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The first version, with BFD_ASSEMBLER defined, uses high-level BFD
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interfaces and data structures. The second version, with
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BFD_ASSEMBLER not defined, also uses BFD, but mostly for swapping
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data structures and for doing the actual I/O. The latter defines
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the preprocessor symbols BFD and BFD_HEADERS. Try not to let this
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confuse you.
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These two are in the process of being merged, and eventually the
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BFD_ASSEMBLER version should take over completely. Release timing
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issues and namespace problems convinced me to merge the two
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together in this fashion, a little sooner than I would have liked.
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The real merge should be much better done by the time the next
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release comes out.
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For now, the structure of this file is:
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<common>
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#ifdef BFD_ASSEMBLER
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<one version>
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#else
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<other version>
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#endif
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<common>
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Unfortunately, the common portions are very small at the moment,
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and many declarations or definitions are duplicated. The structure
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of obj-coff.c is similar.
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See doc/internals.texi for a brief discussion of the history, if
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you care.
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Ken Raeburn, 5 May 1994. */
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#ifdef BFD_ASSEMBLER
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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_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;
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extern symbolS *coff_last_function;
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#define obj_emit_lineno(WHERE, LINE, FILE_START) abort ()
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#define obj_app_file(name, app) c_dot_file_symbol (name, app)
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#define obj_frob_symbol(S,P) coff_frob_symbol (S, & P)
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#define obj_frob_section(S) coff_frob_section (S)
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#define obj_frob_file_after_relocs() coff_frob_file_after_relocs ()
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#ifndef obj_adjust_symtab
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#define obj_adjust_symtab() coff_adjust_symtab ()
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#endif
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/* Forward the segment of a forwarded symbol, handle assignments that
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just copy symbol values, etc. */
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#ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
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#ifndef TE_I386AIX
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#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
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(SF_GET_GET_SEGMENT (dest) \
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? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
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: 0)
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#else
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#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
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(SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \
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? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
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: 0)
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#endif
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#endif
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/* Sanity check. */
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#ifdef TC_I960
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#ifndef C_LEAFSTAT
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hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
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#endif /* no C_LEAFSTAT */
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#endif /* TC_I960 */
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#else /* not BFD_ASSEMBLER */
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#if defined TC_A29K || defined TC_OR32
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/* Allow translate from aout relocs to coff relocs. */
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#define NO_RELOC 20
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#define RELOC_32 1
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#define RELOC_8 2
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#define RELOC_CONST 3
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#define RELOC_CONSTH 4
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#define RELOC_JUMPTARG 5
|
|
#define RELOC_BASE22 6
|
|
#define RELOC_HI22 7
|
|
#define RELOC_LO10 8
|
|
#define RELOC_BASE13 9
|
|
#define RELOC_WDISP22 10
|
|
#define RELOC_WDISP30 11
|
|
#endif
|
|
|
|
extern const segT N_TYPE_seg[];
|
|
|
|
/* Magic number of paged executable. */
|
|
#define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE 0x8300
|
|
|
|
/* SYMBOL TABLE */
|
|
|
|
/* Symbol table entry data type. */
|
|
|
|
typedef struct
|
|
{
|
|
/* Basic symbol. */
|
|
struct internal_syment ost_entry;
|
|
/* Auxiliary entry. */
|
|
union internal_auxent ost_auxent[OBJ_COFF_MAX_AUXENTRIES];
|
|
/* obj_coff internal use only flags. */
|
|
unsigned int ost_flags;
|
|
} obj_symbol_type;
|
|
|
|
/* Symbol table macros and constants. */
|
|
|
|
/* Possible and useful section number in symbol table
|
|
The values of TEXT, DATA and BSS may not be portable. */
|
|
|
|
#define C_ABS_SECTION N_ABS
|
|
#define C_UNDEF_SECTION N_UNDEF
|
|
#define C_DEBUG_SECTION N_DEBUG
|
|
#define C_NTV_SECTION N_TV
|
|
#define C_PTV_SECTION P_TV
|
|
#define C_REGISTER_SECTION 50
|
|
|
|
/* Macros to extract information from a symbol table entry.
|
|
This syntactic indirection allows independence regarding a.out or coff.
|
|
The argument (s) of all these macros is a pointer to a symbol table entry. */
|
|
|
|
/* Predicates. */
|
|
/* True if the symbol is external. */
|
|
#define S_IS_EXTERNAL(s) \
|
|
((s)->sy_symbol.ost_entry.n_scnum == C_UNDEF_SECTION)
|
|
|
|
/* True if symbol has been defined, ie :
|
|
section > 0 (DATA, TEXT or BSS)
|
|
section == 0 and value > 0 (external bss symbol). */
|
|
#define S_IS_DEFINED(s) \
|
|
((s)->sy_symbol.ost_entry.n_scnum > C_UNDEF_SECTION \
|
|
|| ((s)->sy_symbol.ost_entry.n_scnum == C_UNDEF_SECTION \
|
|
&& S_GET_VALUE (s) > 0) \
|
|
|| ((s)->sy_symbol.ost_entry.n_scnum == C_ABS_SECTION))
|
|
|
|
/* Return true for symbols that should not be reduced to section
|
|
symbols or eliminated from expressions, because they may be
|
|
overridden by the linker. */
|
|
#define S_FORCE_RELOC(s, strict) \
|
|
(!SEG_NORMAL (S_GET_SEGMENT (s)) || (strict && S_IS_WEAK (s)))
|
|
|
|
/* True if a debug special symbol entry. */
|
|
#define S_IS_DEBUG(s) \
|
|
((s)->sy_symbol.ost_entry.n_scnum == C_DEBUG_SECTION)
|
|
|
|
/* True if a symbol is local symbol name. */
|
|
/* A symbol name whose name includes ^A is a gas internal pseudo symbol. */
|
|
#define S_IS_LOCAL(s) \
|
|
((s)->sy_symbol.ost_entry.n_scnum == C_REGISTER_SECTION \
|
|
|| (S_LOCAL_NAME(s) && ! flag_keep_locals && ! S_IS_DEBUG (s)) \
|
|
|| strchr (S_GET_NAME (s), '\001') != NULL \
|
|
|| strchr (S_GET_NAME (s), '\002') != NULL \
|
|
|| (flag_strip_local_absolute \
|
|
&& !S_IS_EXTERNAL (s) \
|
|
&& (s)->sy_symbol.ost_entry.n_scnum == C_ABS_SECTION))
|
|
|
|
/* True if a symbol can be multiply defined (bss symbols have this def
|
|
though it is bad practice). */
|
|
#define S_IS_COMMON(s) ((s)->sy_symbol.ost_entry.n_scnum == 0 \
|
|
&& S_GET_VALUE (s) != 0)
|
|
|
|
/* True if a symbol name is in the string table, i.e. its length is > 8. */
|
|
#define S_IS_STRING(s) (strlen (S_GET_NAME (s)) > 8 ? 1 : 0)
|
|
|
|
/* True if a symbol is defined as weak. */
|
|
#ifdef TE_PE
|
|
#define S_IS_WEAK(s) \
|
|
( (s)->sy_symbol.ost_entry.n_sclass == C_NT_WEAK \
|
|
|| (s)->sy_symbol.ost_entry.n_sclass == C_WEAKEXT)
|
|
#else
|
|
#define S_IS_WEAK(s) \
|
|
((s)->sy_symbol.ost_entry.n_sclass == C_WEAKEXT)
|
|
#endif
|
|
|
|
/* Accessors. */
|
|
/* The name of the symbol. */
|
|
#define S_GET_NAME(s) ((char *) (s)->sy_symbol.ost_entry.n_offset)
|
|
|
|
/* The pointer to the string table. */
|
|
#define S_GET_OFFSET(s) ((s)->sy_symbol.ost_entry.n_offset)
|
|
|
|
/* The numeric value of the segment. */
|
|
#define S_GET_SEGMENT(s) s_get_segment (s)
|
|
|
|
/* The data type. */
|
|
#define S_GET_DATA_TYPE(s) ((s)->sy_symbol.ost_entry.n_type)
|
|
|
|
/* The storage class. */
|
|
#define S_GET_STORAGE_CLASS(s) ((s)->sy_symbol.ost_entry.n_sclass)
|
|
|
|
/* The number of auxiliary entries. */
|
|
#define S_GET_NUMBER_AUXILIARY(s) ((s)->sy_symbol.ost_entry.n_numaux)
|
|
|
|
/* Modifiers. */
|
|
/* Set the name of the symbol. */
|
|
#define S_SET_NAME(s, v) \
|
|
((s)->sy_symbol.ost_entry.n_offset = (unsigned long) (v))
|
|
|
|
/* Set the offset of the symbol. */
|
|
#define S_SET_OFFSET(s, v) \
|
|
((s)->sy_symbol.ost_entry.n_offset = (v))
|
|
|
|
/* The numeric value of the segment. */
|
|
#define S_SET_SEGMENT(s, v) \
|
|
((s)->sy_symbol.ost_entry.n_scnum = SEGMENT_TO_SYMBOL_TYPE (v))
|
|
|
|
/* The data type. */
|
|
#define S_SET_DATA_TYPE(s, v) \
|
|
((s)->sy_symbol.ost_entry.n_type = (v))
|
|
|
|
/* The storage class. */
|
|
#define S_SET_STORAGE_CLASS(s, v) \
|
|
((s)->sy_symbol.ost_entry.n_sclass = (v))
|
|
|
|
/* The number of auxiliary entries. */
|
|
#define S_SET_NUMBER_AUXILIARY(s, v) \
|
|
((s)->sy_symbol.ost_entry.n_numaux = (v))
|
|
|
|
/* Additional modifiers. */
|
|
/* The symbol is external (does not mean undefined). */
|
|
#define S_SET_EXTERNAL(s) \
|
|
do \
|
|
{ \
|
|
S_SET_STORAGE_CLASS (s, C_EXT); \
|
|
SF_CLEAR_LOCAL (s); \
|
|
} \
|
|
while (0)
|
|
|
|
/* Auxiliary entry macros. SA_ stands for symbol auxiliary. */
|
|
/* Omit the tv related fields. */
|
|
/* Accessors. */
|
|
#define SYM_AUXENT(S) (&(S)->sy_symbol.ost_auxent[0])
|
|
|
|
#define SA_GET_SYM_TAGNDX(s) (SYM_AUXENT (s)->x_sym.x_tagndx.l)
|
|
#define SA_GET_SYM_LNNO(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
|
|
#define SA_GET_SYM_SIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
|
|
#define SA_GET_SYM_FSIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
|
|
#define SA_GET_SYM_LNNOPTR(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
|
|
#define SA_GET_SYM_ENDNDX(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx.l)
|
|
#define SA_GET_SYM_DIMEN(s,i) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
|
|
#define SA_GET_FILE_FNAME(s) (SYM_AUXENT (s)->x_file.x_fname)
|
|
#define SA_GET_FILE_FNAME_OFFSET(s) (SYM_AUXENT (s)->x_file.x_n.x_offset)
|
|
#define SA_GET_FILE_FNAME_ZEROS(s) (SYM_AUXENT (s)->x_file.x_n.x_zeroes)
|
|
#define SA_GET_SCN_SCNLEN(s) (SYM_AUXENT (s)->x_scn.x_scnlen)
|
|
#define SA_GET_SCN_NRELOC(s) (SYM_AUXENT (s)->x_scn.x_nreloc)
|
|
#define SA_GET_SCN_NLINNO(s) (SYM_AUXENT (s)->x_scn.x_nlinno)
|
|
|
|
/* Modifiers. */
|
|
#define SA_SET_SYM_TAGNDX(s,v) (SYM_AUXENT (s)->x_sym.x_tagndx.l = (v))
|
|
#define SA_SET_SYM_LNNO(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno = (v))
|
|
#define SA_SET_SYM_SIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size = (v))
|
|
#define SA_SET_SYM_FSIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize = (v))
|
|
#define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr = (v))
|
|
#define SA_SET_SYM_ENDNDX(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx.l = (v))
|
|
#define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)] = (v))
|
|
#define SA_SET_FILE_FNAME(s,v) strncpy (SYM_AUXENT (s)->x_file.x_fname,(v),FILNMLEN)
|
|
#define SA_SET_FILE_FNAME_OFFSET(s,v) (SYM_AUXENT (s)->x_file.x_n.x_offset = (v))
|
|
#define SA_SET_FILE_FNAME_ZEROS(s,v) (SYM_AUXENT (s)->x_file.x_n.x_zeroes = (v))
|
|
#define SA_SET_SCN_SCNLEN(s,v) (SYM_AUXENT (s)->x_scn.x_scnlen = (v))
|
|
#define SA_SET_SCN_NRELOC(s,v) (SYM_AUXENT (s)->x_scn.x_nreloc = (v))
|
|
#define SA_SET_SCN_NLINNO(s,v) (SYM_AUXENT (s)->x_scn.x_nlinno = (v))
|
|
|
|
/* Internal use only definitions. SF_ stands for symbol flags.
|
|
|
|
These values can be assigned to sy_symbol.ost_flags field of a symbolS.
|
|
|
|
You'll break i960 if you shift the SYSPROC bits anywhere else. for
|
|
more on the balname/callname hack, see tc-i960.h. b.out is done
|
|
differently. */
|
|
|
|
#define SF_I960_MASK 0x000001ff /* Bits 0-8 are used by the i960 port. */
|
|
#define SF_SYSPROC 0x0000003f /* bits 0-5 are used to store the sysproc number. */
|
|
#define SF_IS_SYSPROC 0x00000040 /* bit 6 marks symbols that are sysprocs. */
|
|
#define SF_BALNAME 0x00000080 /* bit 7 marks BALNAME symbols. */
|
|
#define SF_CALLNAME 0x00000100 /* bit 8 marks CALLNAME symbols. */
|
|
|
|
#define SF_NORMAL_MASK 0x0000ffff /* bits 12-15 are general purpose. */
|
|
|
|
#define SF_STATICS 0x00001000 /* Mark the .text & all symbols. */
|
|
#define SF_DEFINED 0x00002000 /* Symbol is defined in this file. */
|
|
#define SF_STRING 0x00004000 /* Symbol name length > 8. */
|
|
#define SF_LOCAL 0x00008000 /* Symbol must not be emitted. */
|
|
|
|
#define SF_DEBUG_MASK 0xffff0000 /* bits 16-31 are debug info. */
|
|
|
|
#define SF_FUNCTION 0x00010000 /* The symbol is a function. */
|
|
#define SF_PROCESS 0x00020000 /* Process symbol before write. */
|
|
#define SF_TAGGED 0x00040000 /* Is associated with a tag. */
|
|
#define SF_TAG 0x00080000 /* Is a tag. */
|
|
#define SF_DEBUG 0x00100000 /* Is in debug or abs section. */
|
|
#define SF_GET_SEGMENT 0x00200000 /* Get the section of the forward symbol. */
|
|
#define SF_ADJ_LNNOPTR 0x00400000 /* Has a lnnoptr. */
|
|
/* All other bits are unused. */
|
|
|
|
/* Accessors. */
|
|
#define SF_GET(s) ((s)->sy_symbol.ost_flags)
|
|
#define SF_GET_NORMAL_FIELD(s) (SF_GET (s) & SF_NORMAL_MASK)
|
|
#define SF_GET_DEBUG_FIELD(s) (SF_GET (s) & SF_DEBUG_MASK)
|
|
#define SF_GET_FILE(s) (SF_GET (s) & SF_FILE)
|
|
#define SF_GET_STATICS(s) (SF_GET (s) & SF_STATICS)
|
|
#define SF_GET_DEFINED(s) (SF_GET (s) & SF_DEFINED)
|
|
#define SF_GET_STRING(s) (SF_GET (s) & SF_STRING)
|
|
#define SF_GET_LOCAL(s) (SF_GET (s) & SF_LOCAL)
|
|
#define SF_GET_FUNCTION(s) (SF_GET (s) & SF_FUNCTION)
|
|
#define SF_GET_PROCESS(s) (SF_GET (s) & SF_PROCESS)
|
|
#define SF_GET_DEBUG(s) (SF_GET (s) & SF_DEBUG)
|
|
#define SF_GET_TAGGED(s) (SF_GET (s) & SF_TAGGED)
|
|
#define SF_GET_TAG(s) (SF_GET (s) & SF_TAG)
|
|
#define SF_GET_GET_SEGMENT(s) (SF_GET (s) & SF_GET_SEGMENT)
|
|
#define SF_GET_ADJ_LNNOPTR(s) (SF_GET (s) & SF_ADJ_LNNOPTR)
|
|
#define SF_GET_I960(s) (SF_GET (s) & SF_I960_MASK) /* Used by i960. */
|
|
#define SF_GET_BALNAME(s) (SF_GET (s) & SF_BALNAME) /* Used by i960. */
|
|
#define SF_GET_CALLNAME(s) (SF_GET (s) & SF_CALLNAME) /* Used by i960. */
|
|
#define SF_GET_IS_SYSPROC(s) (SF_GET (s) & SF_IS_SYSPROC) /* Used by i960. */
|
|
#define SF_GET_SYSPROC(s) (SF_GET (s) & SF_SYSPROC) /* Used by i960. */
|
|
|
|
/* Modifiers. */
|
|
#define SF_SET(s,v) (SF_GET (s) = (v))
|
|
#define SF_SET_NORMAL_FIELD(s,v)(SF_GET (s) |= ((v) & SF_NORMAL_MASK))
|
|
#define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
|
|
#define SF_SET_FILE(s) (SF_GET (s) |= SF_FILE)
|
|
#define SF_SET_STATICS(s) (SF_GET (s) |= SF_STATICS)
|
|
#define SF_SET_DEFINED(s) (SF_GET (s) |= SF_DEFINED)
|
|
#define SF_SET_STRING(s) (SF_GET (s) |= SF_STRING)
|
|
#define SF_SET_LOCAL(s) (SF_GET (s) |= SF_LOCAL)
|
|
#define SF_CLEAR_LOCAL(s) (SF_GET (s) &= ~SF_LOCAL)
|
|
#define SF_SET_FUNCTION(s) (SF_GET (s) |= SF_FUNCTION)
|
|
#define SF_SET_PROCESS(s) (SF_GET (s) |= SF_PROCESS)
|
|
#define SF_SET_DEBUG(s) (SF_GET (s) |= SF_DEBUG)
|
|
#define SF_SET_TAGGED(s) (SF_GET (s) |= SF_TAGGED)
|
|
#define SF_SET_TAG(s) (SF_GET (s) |= SF_TAG)
|
|
#define SF_SET_GET_SEGMENT(s) (SF_GET (s) |= SF_GET_SEGMENT)
|
|
#define SF_SET_ADJ_LNNOPTR(s) (SF_GET (s) |= SF_ADJ_LNNOPTR)
|
|
#define SF_SET_I960(s,v) (SF_GET (s) |= ((v) & SF_I960_MASK)) /* Used by i960. */
|
|
#define SF_SET_BALNAME(s) (SF_GET (s) |= SF_BALNAME) /* Used by i960. */
|
|
#define SF_SET_CALLNAME(s) (SF_GET (s) |= SF_CALLNAME) /* Used by i960. */
|
|
#define SF_SET_IS_SYSPROC(s) (SF_GET (s) |= SF_IS_SYSPROC) /* Used by i960. */
|
|
#define SF_SET_SYSPROC(s,v) (SF_GET (s) |= ((v) & SF_SYSPROC)) /* Used by i960. */
|
|
|
|
/* File header macro and type definition. */
|
|
|
|
/* File position calculators. Beware to use them when all the
|
|
appropriate fields are set in the header. */
|
|
|
|
#ifdef OBJ_COFF_OMIT_OPTIONAL_HEADER
|
|
#define OBJ_COFF_AOUTHDRSZ (0)
|
|
#else
|
|
#define OBJ_COFF_AOUTHDRSZ (AOUTHDRSZ)
|
|
#endif
|
|
|
|
#define H_GET_TEXT_FILE_OFFSET(h) \
|
|
(long) (FILHSZ \
|
|
+ OBJ_COFF_AOUTHDRSZ \
|
|
+ H_GET_NUMBER_OF_SECTIONS (h) * SCNHSZ)
|
|
|
|
#define H_GET_DATA_FILE_OFFSET(h) \
|
|
(long) (H_GET_TEXT_FILE_OFFSET (h) \
|
|
+ H_GET_TEXT_SIZE (h))
|
|
|
|
#define H_GET_BSS_FILE_OFFSET(h) 0
|
|
|
|
#define H_GET_RELOCATION_FILE_OFFSET(h) \
|
|
(long) (H_GET_DATA_FILE_OFFSET (h) \
|
|
+ H_GET_DATA_SIZE (h))
|
|
|
|
#define H_GET_LINENO_FILE_OFFSET(h) \
|
|
(long) (H_GET_RELOCATION_FILE_OFFSET (h) \
|
|
+ H_GET_RELOCATION_SIZE (h))
|
|
|
|
#define H_GET_SYMBOL_TABLE_FILE_OFFSET(h) \
|
|
(long) (H_GET_LINENO_FILE_OFFSET (h) \
|
|
+ H_GET_LINENO_SIZE (h))
|
|
|
|
#define H_GET_FILE_SIZE(h) \
|
|
(long) (H_GET_SYMBOL_TABLE_FILE_OFFSET (h) \
|
|
+ H_GET_SYMBOL_TABLE_SIZE (h) \
|
|
+ (h)->string_table_size)
|
|
|
|
/* Accessors. */
|
|
/* aouthdr. */
|
|
#define H_GET_MAGIC_NUMBER(h) ((h)->aouthdr.magic)
|
|
#define H_GET_VERSION_STAMP(h) ((h)->aouthdr.vstamp)
|
|
#define H_GET_TEXT_SIZE(h) ((h)->aouthdr.tsize)
|
|
#define H_GET_DATA_SIZE(h) ((h)->aouthdr.dsize)
|
|
#define H_GET_BSS_SIZE(h) ((h)->aouthdr.bsize)
|
|
#define H_GET_ENTRY_POINT(h) ((h)->aouthdr.entry)
|
|
#define H_GET_TEXT_START(h) ((h)->aouthdr.text_start)
|
|
#define H_GET_DATA_START(h) ((h)->aouthdr.data_start)
|
|
/* filehdr. */
|
|
#define H_GET_FILE_MAGIC_NUMBER(h) ((h)->filehdr.f_magic)
|
|
#define H_GET_NUMBER_OF_SECTIONS(h) ((h)->filehdr.f_nscns)
|
|
#define H_GET_TIME_STAMP(h) ((h)->filehdr.f_timdat)
|
|
#define H_GET_SYMBOL_TABLE_POINTER(h) ((h)->filehdr.f_symptr)
|
|
#define H_GET_SYMBOL_COUNT(h) ((h)->filehdr.f_nsyms)
|
|
#define H_GET_SYMBOL_TABLE_SIZE(h) (H_GET_SYMBOL_COUNT(h) * SYMESZ)
|
|
#define H_GET_SIZEOF_OPTIONAL_HEADER(h) ((h)->filehdr.f_opthdr)
|
|
#define H_GET_FLAGS(h) ((h)->filehdr.f_flags)
|
|
/* Extra fields to achieve bsd a.out compatibility and for convenience. */
|
|
#define H_GET_RELOCATION_SIZE(h) ((h)->relocation_size)
|
|
#define H_GET_STRING_SIZE(h) ((h)->string_table_size)
|
|
#define H_GET_LINENO_SIZE(h) ((h)->lineno_size)
|
|
|
|
#ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER
|
|
#define H_GET_HEADER_SIZE(h) (sizeof (FILHDR) \
|
|
+ sizeof (AOUTHDR)\
|
|
+ (H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ))
|
|
#else /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
|
|
#define H_GET_HEADER_SIZE(h) (sizeof (FILHDR) \
|
|
+ (H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ))
|
|
#endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
|
|
|
|
#define H_GET_TEXT_RELOCATION_SIZE(h) (text_section_header.s_nreloc * RELSZ)
|
|
#define H_GET_DATA_RELOCATION_SIZE(h) (data_section_header.s_nreloc * RELSZ)
|
|
|
|
/* Modifiers. */
|
|
/* aouthdr. */
|
|
#define H_SET_MAGIC_NUMBER(h,v) ((h)->aouthdr.magic = (v))
|
|
#define H_SET_VERSION_STAMP(h,v) ((h)->aouthdr.vstamp = (v))
|
|
#define H_SET_TEXT_SIZE(h,v) ((h)->aouthdr.tsize = (v))
|
|
#define H_SET_DATA_SIZE(h,v) ((h)->aouthdr.dsize = (v))
|
|
#define H_SET_BSS_SIZE(h,v) ((h)->aouthdr.bsize = (v))
|
|
#define H_SET_ENTRY_POINT(h,v) ((h)->aouthdr.entry = (v))
|
|
#define H_SET_TEXT_START(h,v) ((h)->aouthdr.text_start = (v))
|
|
#define H_SET_DATA_START(h,v) ((h)->aouthdr.data_start = (v))
|
|
/* filehdr. */
|
|
#define H_SET_FILE_MAGIC_NUMBER(h,v) ((h)->filehdr.f_magic = (v))
|
|
#define H_SET_NUMBER_OF_SECTIONS(h,v) ((h)->filehdr.f_nscns = (v))
|
|
#define H_SET_TIME_STAMP(h,v) ((h)->filehdr.f_timdat = (v))
|
|
#define H_SET_SYMBOL_TABLE_POINTER(h,v) ((h)->filehdr.f_symptr = (v))
|
|
#define H_SET_SYMBOL_TABLE_SIZE(h,v) ((h)->filehdr.f_nsyms = (v))
|
|
#define H_SET_SIZEOF_OPTIONAL_HEADER(h,v) ((h)->filehdr.f_opthdr = (v))
|
|
#define H_SET_FLAGS(h,v) ((h)->filehdr.f_flags = (v))
|
|
/* Extra fields to achieve bsd a.out compatibility and for convenience. */
|
|
#define H_SET_RELOCATION_SIZE(h,t,d) ((h)->relocation_size = (t)+(d))
|
|
#define H_SET_STRING_SIZE(h,v) ((h)->string_table_size = (v))
|
|
#define H_SET_LINENO_SIZE(h,v) ((h)->lineno_size = (v))
|
|
|
|
/* Segment flipping. */
|
|
|
|
typedef struct
|
|
{
|
|
struct internal_aouthdr aouthdr; /* a.out header. */
|
|
struct internal_filehdr filehdr; /* File header, not machine dep. */
|
|
long string_table_size; /* names + '\0' + sizeof (int). */
|
|
long relocation_size; /* Cumulated size of relocation
|
|
information for all sections in
|
|
bytes. */
|
|
long lineno_size; /* Size of the line number information
|
|
table in bytes. */
|
|
} object_headers;
|
|
|
|
struct lineno_list
|
|
{
|
|
struct bfd_internal_lineno line;
|
|
char *frag; /* Frag to which the line number is related. */
|
|
struct lineno_list *next; /* Forward chain pointer. */
|
|
};
|
|
|
|
#define obj_segment_name(i) (segment_info[(int) (i)].scnhdr.s_name)
|
|
|
|
#define obj_add_segment(s) obj_coff_add_segment (s)
|
|
|
|
/* 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 struct internal_scnhdr data_section_header;
|
|
extern struct internal_scnhdr text_section_header;
|
|
|
|
/* Forward the segment of a forwarded symbol. */
|
|
#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
|
|
(SF_GET_GET_SEGMENT (dest) \
|
|
? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
|
|
: 0)
|
|
|
|
#ifdef TE_PE
|
|
#define obj_handle_link_once(t) obj_coff_pe_handle_link_once (t)
|
|
#endif
|
|
|
|
#endif /* not BFD_ASSEMBLER */
|
|
|
|
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)
|
|
|
|
#ifdef BFD_ASSEMBLER
|
|
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);
|
|
#else
|
|
extern void obj_extra_stuff (object_headers *);
|
|
#endif
|
|
extern void coff_obj_symbol_new_hook (symbolS *);
|
|
extern void coff_obj_read_begin_hook (void);
|
|
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);
|
|
#endif /* OBJ_FORMAT_H */
|