/* Definitions of target machine for GNU compiler. ARM Linux-based GNU systems version. Copyright (C) 1997, 1998, 1999, 2000, 2001, 2004 Free Software Foundation, Inc. Contributed by Russell King <rmk92@ecs.soton.ac.uk>. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* This is how we tell the assembler that a symbol is weak. GAS always supports weak symbols. */ /* Unsigned chars produces much better code than signed. */ #define DEFAULT_SIGNED_CHAR 0 #undef SUBTARGET_CPP_SPEC #define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE}" #undef SIZE_TYPE #define SIZE_TYPE "unsigned int" #undef PTRDIFF_TYPE #define PTRDIFF_TYPE "int" #undef WCHAR_TYPE #define WCHAR_TYPE "long int" #undef WCHAR_TYPE_SIZE #define WCHAR_TYPE_SIZE BITS_PER_WORD /* Emit code to set up a trampoline and synchronize the caches. */ #undef INITIALIZE_TRAMPOLINE #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \ { \ emit_move_insn (gen_rtx_MEM (SImode, plus_constant ((TRAMP), 8)), \ (CXT)); \ emit_move_insn (gen_rtx_MEM (SImode, plus_constant ((TRAMP), 12)), \ (FNADDR)); \ emit_library_call (gen_rtx_SYMBOL_REF (Pmode, "__clear_cache"), \ 0, VOIDmode, 2, TRAMP, Pmode, \ plus_constant (TRAMP, TRAMPOLINE_SIZE), Pmode); \ } /* Clear the instruction cache from `beg' to `end'. This makes an inline system call to SYS_cacheflush. */ #define CLEAR_INSN_CACHE(BEG, END) \ { \ register unsigned long _beg __asm ("a1") = (unsigned long) (BEG); \ register unsigned long _end __asm ("a2") = (unsigned long) (END); \ register unsigned long _flg __asm ("a3") = 0; \ __asm __volatile ("swi 0x9f0002 @ sys_cacheflush" \ : "=r" (_beg) \ : "0" (_beg), "r" (_end), "r" (_flg)); \ }