r3900.h

gcc-2.95.3 Linux下最常用的C编译器

/* Definitions of MIPS sub target machine for GNU compiler. 
   Toshiba r3900.  You should include mips.h after this.

   Copyright (C) 1989, 90-6, 1997 Free Software Foundation, Inc.
   Contributed by Gavin Koch ([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.  */

#define SUBTARGET_CPP_SPEC "\
%{!mabi=32: %{!mabi=n32: %{!mabi=64: -D__mips_eabi}}} \
%{!msingle-float:-D__mips_soft_float} \
%{mhard-float:%e-mhard-float not supported.} \
%{msingle-float:%{msoft-float: \
  %e-msingle-float and -msoft-float can not both be specified.}}"

/* The following is needed because -mips3 and -mips4 set gp64 which in
   combination with abi=eabi, causes long64 to be set. */
#define SUBTARGET_CPP_SIZE_SPEC "\
%{mips3:-D__SIZE_TYPE__=long\\ unsigned\\ int -D__PTRDIFF_TYPE__=long\\ int} \
%{mips4:-D__SIZE_TYPE__=long\\ unsigned\\ int -D__PTRDIFF_TYPE__=long\\ int} \
%{!mips3:%{!mips4:%{!m4650:\
  -D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int}}} "

/* by default (if not mips-something-else) produce code for the r3900 */
#define SUBTARGET_CC1_SPEC "\
%{mhard-float:%e-mhard-float not supported.} \
%{msingle-float:%{msoft-float: \
  %e-msingle-float and -msoft-float can not both be specified.}}"

#define TARGET_DEFAULT (MASK_SOFT_FLOAT | MASK_MIPS3900)
#define MIPS_CPU_STRING_DEFAULT "R3900"
#define MIPS_ISA_DEFAULT 1

#define MULTILIB_DEFAULTS { "EB", "msoft-float" }

/* We use the MIPS EABI by default.  */
#define MIPS_ABI_DEFAULT ABI_EABI


/* Debugging */

#define DWARF2_DEBUGGING_INFO
#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG

/* For the 'preferred' cases ("gN" and "ggdbN") we need to tell the 
   gnu assembler not to generate debugging information. */
   
#define SUBTARGET_ASM_DEBUGGING_SPEC "\
%{!mmips-as: \
  %{g:-g0} %{g0:-g0} %{g1:-g0} %{g2:-g0} %{g3:-g0} \
  %{ggdb:-g0} %{ggdb0:-g0} %{ggdb1:-g0} %{ggdb2:-g0} %{ggdb3:-g0} \
  %{gdwarf-2*:-g0}} \
%{gstabs:-g} %{gstabs0:-g0} %{gstabs1:-g1} %{gstabs2:-g2} %{gstabs3:-g3} \
%{gstabs+:-g} %{gstabs+0:-g0} %{gstabs+1:-g1} %{gstabs+2:-g2} %{gstabs+3:-g3} \
%{gcoff:-g} %{gcoff0:-g0} %{gcoff1:-g1} %{gcoff2:-g2} %{gcoff3:-g3}"

/* eof */