1 /* Core target definitions for GNU compiler 2 for PowerPC embedded targeted systems with SPE support. 3 Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. 4 Contributed by Aldy Hernandez (aldyh@redhat.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, 51 Franklin Street, Fifth Floor, Boston, 21 MA 02110-1301, USA. */ 22 23 #undef TARGET_DEFAULT 24 #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS | MASK_EABI) 25 26 #undef TARGET_VERSION 27 #define TARGET_VERSION fprintf (stderr, " (PowerPC Embedded SPE)"); 28 29 #undef SUBSUBTARGET_OVERRIDE_OPTIONS 30 #define SUBSUBTARGET_OVERRIDE_OPTIONS \ 31 if (rs6000_select[1].string == NULL) \ 32 rs6000_cpu = PROCESSOR_PPC8540; \ 33 if (!rs6000_explicit_options.abi) \ 34 rs6000_spe_abi = 1; \ 35 if (!rs6000_explicit_options.float_gprs) \ 36 rs6000_float_gprs = 1; \ 37 /* See note below. */ \ 38 /*if (!rs6000_explicit_options.long_double)*/ \ 39 /* rs6000_long_double_type_size = 128;*/ \ 40 if (!rs6000_explicit_options.spe) \ 41 rs6000_spe = 1; \ 42 if (!rs6000_explicit_options.isel) \ 43 rs6000_isel = 1; \ 44 if (target_flags & MASK_64BIT) \ 45 error ("-m64 not supported in this configuration") 46 47 /* The e500 ABI says that either long doubles are 128 bits, or if 48 implemented in any other size, the compiler/linker should error out. 49 We have no emulation libraries for 128 bit long doubles, and I hate 50 the dozens of failures on the regression suite. So I'm breaking ABI 51 specifications, until I properly fix the emulation. 52 53 Enable these later. 54 #undef CPP_LONGDOUBLE_DEFAULT_SPEC 55 #define CPP_LONGDOUBLE_DEFAULT_SPEC "-D__LONG_DOUBLE_128__=1" 56 */ 57 58 #undef ASM_DEFAULT_SPEC 59 #define ASM_DEFAULT_SPEC "-mppc -mspe -me500" 60