1 /* Definitions of target machine for GNU compiler. 2 ARM Linux-based GNU systems version. 3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2004 4 Free Software Foundation, Inc. 5 Contributed by Russell King <rmk92@ecs.soton.ac.uk>. 6 7 This file is part of GCC. 8 9 GCC is free software; you can redistribute it and/or modify it 10 under the terms of the GNU General Public License as published 11 by the Free Software Foundation; either version 2, or (at your 12 option) any later version. 13 14 GCC is distributed in the hope that it will be useful, but WITHOUT 15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 17 License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program; see the file COPYING. If not, write to 21 the Free Software Foundation, 51 Franklin Street, Fifth Floor, 22 Boston, MA 02110-1301, USA. */ 23 24 /* This is how we tell the assembler that a symbol is weak. 25 GAS always supports weak symbols. */ 26 27 /* Unsigned chars produces much better code than signed. */ 28 #define DEFAULT_SIGNED_CHAR 0 29 30 #undef SUBTARGET_CPP_SPEC 31 #define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}" 32 33 #undef SIZE_TYPE 34 #define SIZE_TYPE "unsigned int" 35 36 #undef PTRDIFF_TYPE 37 #define PTRDIFF_TYPE "int" 38 39 #undef WCHAR_TYPE 40 #define WCHAR_TYPE "long int" 41 42 #undef WCHAR_TYPE_SIZE 43 #define WCHAR_TYPE_SIZE BITS_PER_WORD 44 45 /* Clear the instruction cache from `beg' to `end'. This makes an 46 inline system call to SYS_cacheflush. */ 47 #define CLEAR_INSN_CACHE(BEG, END) \ 48 { \ 49 register unsigned long _beg __asm ("a1") = (unsigned long) (BEG); \ 50 register unsigned long _end __asm ("a2") = (unsigned long) (END); \ 51 register unsigned long _flg __asm ("a3") = 0; \ 52 __asm __volatile ("swi 0x9f0002 @ sys_cacheflush" \ 53 : "=r" (_beg) \ 54 : "0" (_beg), "r" (_end), "r" (_flg)); \ 55 } 56