linuxspe.h

linux下编程用 编译软件

/* Definitions of target machine for GNU compiler,
   for PowerPC e500 machines running GNU/Linux.
   Copyright (C) 2003, 2004 Free Software Foundation, Inc.
   Contributed by Aldy Hernandez ([e-mail]).

   This file is part of GCC.

   GCC 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.

   GCC 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 GCC; see the file COPYING.  If not, write to the
   Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
   MA 02110-1301, USA.  */

#undef  TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (PowerPC E500 GNU/Linux)");

/* Override rs6000.h and sysv4.h definition.  */
#undef	TARGET_DEFAULT
#define	TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)

#undef TARGET_SPE_ABI
#undef TARGET_SPE
#undef TARGET_E500
#undef TARGET_ISEL
#undef TARGET_FPRS
#undef TARGET_E500_SINGLE
#undef TARGET_E500_DOUBLE

#define TARGET_SPE_ABI rs6000_spe_abi
#define TARGET_SPE rs6000_spe
#define TARGET_E500 (rs6000_cpu == PROCESSOR_PPC8540)
#define TARGET_ISEL rs6000_isel
#define TARGET_FPRS (rs6000_float_gprs == 0)
#define TARGET_E500_SINGLE (TARGET_HARD_FLOAT && rs6000_float_gprs == 1)
#define TARGET_E500_DOUBLE (TARGET_HARD_FLOAT && rs6000_float_gprs == 2)

#undef  SUBSUBTARGET_OVERRIDE_OPTIONS
#define SUBSUBTARGET_OVERRIDE_OPTIONS \
  if (rs6000_select[1].string == NULL) \
    rs6000_cpu = PROCESSOR_PPC8540; \
  if (!rs6000_explicit_options.abi) \
    rs6000_spe_abi = 1; \
  if (!rs6000_explicit_options.float_gprs) \
    rs6000_float_gprs = 1; \
  /* See note below.  */ \
  /*if (!rs6000_explicit_options.long_double)*/ \
  /*  rs6000_long_double_type_size = 128;*/ \
  if (!rs6000_explicit_options.spe) \
    rs6000_spe = 1; \
  if (!rs6000_explicit_options.isel) \
    rs6000_isel = 1; \
  if (target_flags & MASK_64BIT) \
    error ("-m64 not supported in this configuration")

/* The e500 ABI says that either long doubles are 128 bits, or if
   implemented in any other size, the compiler/linker should error out.
   We have no emulation libraries for 128 bit long doubles, and I hate
   the dozens of failures on the regression suite.  So I'm breaking ABI
   specifications, until I properly fix the emulation.

   Enable these later.
#undef CPP_LONGDOUBLE_DEFAULT_SPEC
#define CPP_LONGDOUBLE_DEFAULT_SPEC "-D__LONG_DOUBLE_128__=1"
*/

#undef  ASM_DEFAULT_SPEC
#define	ASM_DEFAULT_SPEC "-mppc -mspe -me500"