powerpc.h

GCC编译器源代码

/* Definitions of target machine for GNU compiler,
   for IBM RS/6000 PowerPC running AIX version 3.2.
   Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
   Contributed by David Edelsohn ([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 "rs6000/rs6000.h"

#undef ASM_SPEC
#define ASM_SPEC "-u %(asm_cpu)"

#undef CPP_PREDEFINES
#define CPP_PREDEFINES "-D_IBMR2 -D_POWER -D_AIX -D_AIX32 \
-Asystem(unix) -Asystem(aix) -Acpu(powerpc) -Amachine(powerpc)"

#undef	CPP_DEFAULT_SPEC
#define	CPP_DEFAULT_SPEC "-D_ARCH_PPC"

#undef	ASM_DEFAULT_SPEC
#define	ASM_DEFAULT_SPEC "-mppc"

#undef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)

#undef PROCESSOR_DEFAULT
#define PROCESSOR_DEFAULT PROCESSOR_PPC601

/* These are not necessary when we pass -u to the assembler, and undefining
   them saves a great deal of space in object files.  */

#undef ASM_OUTPUT_EXTERNAL
#undef ASM_OUTPUT_EXTERNAL_LIBCALL
#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME)	\
{ rtx _symref = XEXP (DECL_RTL (DECL), 0);	\
  if ((TREE_CODE (DECL) == VAR_DECL		\
       || TREE_CODE (DECL) == FUNCTION_DECL)	\
      && (NAME)[strlen (NAME) - 1] != ']')	\
    {						\
      char *_name = (char *) permalloc (strlen (XSTR (_symref, 0)) + 5); \
      strcpy (_name, XSTR (_symref, 0));	\
      strcat (_name, TREE_CODE (DECL) == FUNCTION_DECL ? "[DS]" : "[RW]"); \
      XSTR (_symref, 0) = _name;		\
    }						\
}