1/* Definitions of target machine for GNU compiler, 2 for PowerPC e500 machines running GNU/Linux. 3 Copyright (C) 2003, 2004 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, 51 Franklin Street, Fifth Floor, Boston, 21 MA 02110-1301, 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 | MASK_STRICT_ALIGN) 29 30#undef TARGET_SPE_ABI 31#undef TARGET_SPE 32#undef TARGET_E500 33#undef TARGET_ISEL 34#undef TARGET_FPRS 35#undef TARGET_E500_SINGLE 36#undef TARGET_E500_DOUBLE 37 38#define TARGET_SPE_ABI rs6000_spe_abi 39#define TARGET_SPE rs6000_spe 40#define TARGET_E500 (rs6000_cpu == PROCESSOR_PPC8540) 41#define TARGET_ISEL rs6000_isel 42#define TARGET_FPRS (rs6000_float_gprs == 0) 43#define TARGET_E500_SINGLE (TARGET_HARD_FLOAT && rs6000_float_gprs == 1) 44#define TARGET_E500_DOUBLE (TARGET_HARD_FLOAT && rs6000_float_gprs == 2) 45 46#undef SUBSUBTARGET_OVERRIDE_OPTIONS 47#define SUBSUBTARGET_OVERRIDE_OPTIONS \ 48 if (rs6000_select[1].string == NULL) \ 49 rs6000_cpu = PROCESSOR_PPC8540; \ 50 if (!rs6000_explicit_options.abi) \ 51 rs6000_spe_abi = 1; \ 52 if (!rs6000_explicit_options.float_gprs) \ 53 rs6000_float_gprs = 1; \ 54 /* See note below. */ \ 55 /*if (!rs6000_explicit_options.long_double)*/ \ 56 /* rs6000_long_double_type_size = 128;*/ \ 57 if (!rs6000_explicit_options.spe) \ 58 rs6000_spe = 1; \ 59 if (!rs6000_explicit_options.isel) \ 60 rs6000_isel = 1; \ 61 if (target_flags & MASK_64BIT) \ 62 error ("-m64 not supported in this configuration") 63 64/* The e500 ABI says that either long doubles are 128 bits, or if 65 implemented in any other size, the compiler/linker should error out. 66 We have no emulation libraries for 128 bit long doubles, and I hate 67 the dozens of failures on the regression suite. So I'm breaking ABI 68 specifications, until I properly fix the emulation. 69 70 Enable these later. 71#undef CPP_LONGDOUBLE_DEFAULT_SPEC 72#define CPP_LONGDOUBLE_DEFAULT_SPEC "-D__LONG_DOUBLE_128__=1" 73*/ 74 75#undef ASM_DEFAULT_SPEC 76#define ASM_DEFAULT_SPEC "-mppc -mspe -me500" 77