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 | MASK_STRICT_ALIGN) 26 27 #undef TARGET_VERSION 28 #define TARGET_VERSION fprintf (stderr, " (PowerPC Embedded SPE)"); 29 30 #undef SUBSUBTARGET_OVERRIDE_OPTIONS 31 #define SUBSUBTARGET_OVERRIDE_OPTIONS \ 32 if (rs6000_select[1].string == NULL) \ 33 rs6000_cpu = PROCESSOR_PPC8540; \ 34 if (!rs6000_explicit_options.abi) \ 35 rs6000_spe_abi = 1; \ 36 if (!rs6000_explicit_options.float_gprs) \ 37 rs6000_float_gprs = 1; \ 38 /* See note below. */ \ 39 /*if (!rs6000_explicit_options.long_double)*/ \ 40 /* rs6000_long_double_type_size = 128;*/ \ 41 if (!rs6000_explicit_options.spe) \ 42 rs6000_spe = 1; \ 43 if (!rs6000_explicit_options.isel) \ 44 rs6000_isel = 1; \ 45 if (target_flags & MASK_64BIT) \ 46 error ("-m64 not supported in this configuration") 47 48 /* The e500 ABI says that either long doubles are 128 bits, or if 49 implemented in any other size, the compiler/linker should error out. 50 We have no emulation libraries for 128 bit long doubles, and I hate 51 the dozens of failures on the regression suite. So I'm breaking ABI 52 specifications, until I properly fix the emulation. 53 54 Enable these later. 55 #undef CPP_LONGDOUBLE_DEFAULT_SPEC 56 #define CPP_LONGDOUBLE_DEFAULT_SPEC "-D__LONG_DOUBLE_128__=1" 57 */ 58 59 #undef ASM_DEFAULT_SPEC 60 #define ASM_DEFAULT_SPEC "-mppc -mspe -me500" 61