dguxbcs.h

gcc编译工具没有什么特别

/* Definitions of target machine for GNU compiler.
   Motorola m88100 running DG/UX.
   Copyright (C) 1988, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
   Contributed by Michael Tiemann ([e-mail])
   Currently maintained by ([e-mail])

This file is part of GNU CC.

GNU CC 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, or (at your option)
any later version.

GNU CC 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 GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

#include "m88k/dgux.h"

/* dgux.h builds an elf gcc which compiles elf objects by default.
   dguxbcs.h builds a bcs gcc which compiles bcs objects by default.
   The default can be overridden in either case with -msvr3 and -msvr4 */

/* Default switches */
#undef	TARGET_DEFAULT
#define TARGET_DEFAULT	(MASK_CHECK_ZERO_DIV	 | \
			 MASK_OCS_DEBUG_INFO	 | \
			 MASK_OCS_FRAME_POSITION | \
			 MASK_SVR3)

/* Assembler support (-V, silicon filter, legends for mxdb).  */
#undef	ASM_SPEC
#define ASM_SPEC "%{pipe:%{!.s: - }\
		   %{msvr4:%{!m88110:-KV3 }%{m88110:-KV04.00 }}}\
		  %(asm_cpu)"

/* If -m88100 is in effect, add -Dm88100; similarly for -m88110.
   Here, the CPU_DEFAULT is assumed to be -m88000.  If not -ansi,
   -traditional, or restricting include files to one specific source
   target, specify full DG/UX features.  */
#undef	CPP_SPEC
#define	CPP_SPEC "%(cpp_cpu) \
		  %{!msvr4:-D_M88KBCS_TARGET} %{msvr4:-D_DGUX_TARGET}"

/* Linker and library spec's.
   -msvr3 is the default if -msvr4 is not specified. */
#undef	LIB_SPEC
#define LIB_SPEC "%{msvr4:%{!shared:-lstaticdgc}} %{!shared:%{!symbolic:-lc}}"

#undef	STARTFILE_SPEC
#define STARTFILE_SPEC "%(startfile_default)"

#undef  STARTFILE_CRTBEGIN_SPEC
#define STARTFILE_CRTBEGIN_SPEC "\
			 %{!msvr4:m88kdgux.ld%s bcscrtbegin.o%s} \
			 %{msvr4:crtbegin.o%s}"