gcc/config/rs6000/linuxspe.h

   1 /* Definitions of target machine for GNU compiler,
   2    for PowerPC e500 machines running GNU/Linux.
   3    Copyright (C) 2003 Free Software Foundation, Inc.
   4    Contributed by Aldy Hernandez (aldy@quesejoda.com).
   5
   6    This file is part of GCC.
   7
   8    GCC is free software; you can redistribute it and/or modify it
   9    under the terms of the GNU General Public License as published
  10    by the Free Software Foundation; either version 2, or (at your
  11    option) any later version.
  12
  13    GCC is distributed in the hope that it will be useful, but WITHOUT
  14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  15    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  16    License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with GCC; see the file COPYING.  If not, write to the
  20    Free Software Foundation, 59 Temple Place - Suite 330, Boston,
  21    MA 02111-1307, USA.  */
  22
  23 #undef  TARGET_VERSION
  24 #define TARGET_VERSION fprintf (stderr, " (PowerPC E500 GNU/Linux)");
  25
  26 /* Override rs6000.h and sysv4.h definition.  */
  27 #undef  TARGET_DEFAULT
  28 #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)
  29
  30 #undef TARGET_SPE_ABI
  31 #undef TARGET_SPE
  32 #undef TARGET_E500
  33 #undef TARGET_ISEL
  34 #undef TARGET_FPRS
  35
  36 #define TARGET_SPE_ABI rs6000_spe_abi
  37 #define TARGET_SPE rs6000_spe
  38 #define TARGET_E500 (rs6000_cpu == PROCESSOR_PPC8540)
  39 #define TARGET_ISEL rs6000_isel
  40 #define TARGET_FPRS (!rs6000_float_gprs)
  41
  42 #undef  SUBSUBTARGET_OVERRIDE_OPTIONS
  43 #define SUBSUBTARGET_OVERRIDE_OPTIONS \
  44   if (rs6000_select[1].string == NULL) \
  45     rs6000_cpu = PROCESSOR_PPC8540; \
  46   if (rs6000_abi_string == NULL || strstr (rs6000_abi_string, "spe") == NULL) \
  47     rs6000_spe_abi = 1; \
  48   if (rs6000_float_gprs_string == NULL) \
  49     rs6000_float_gprs = 1; \
  50   /* See note below.  */ \
  51   /*if (rs6000_long_double_size_string == NULL)*/ \
  52   /*  rs6000_long_double_type_size = 128;*/ \
  53   if (rs6000_spe_string == NULL) \
  54     rs6000_spe = 1; \
  55   if (rs6000_isel_string == NULL) \
  56     rs6000_isel = 1
  57
  58 /* The e500 ABI says that either long doubles are 128 bits, or if
  59    implemented in any other size, the compiler/linker should error out.
  60    We have no emulation libraries for 128 bit long doubles, and I hate
  61    the dozens of failures on the regression suite.  So I'm breaking ABI
  62    specifications, until I properly fix the emulation.
  63
  64    Enable these later.
  65 #undef CPP_LONGDOUBLE_DEFAULT_SPEC
  66 #define CPP_LONGDOUBLE_DEFAULT_SPEC "-D__LONG_DOUBLE_128__=1"
  67 */
  68
  69 #undef  ASM_DEFAULT_SPEC
  70 #define ASM_DEFAULT_SPEC "-mppc -mspe -me500"