| /* Definitions of target machine for GNU compiler. |
| ARM Linux-based GNU systems version. |
| Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc. |
| Contributed by Russell King <rmk92@ecs.soton.ac.uk>. |
| |
| This file is part of GNU CC. |
| |
| GNU CC 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. |
| |
| GNU CC 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. */ |
| |
| /* |
| * We are using GAS, so stabs should work. |
| */ |
| |
| #ifndef DBX_DEBUGGING_INFO |
| #define DBX_DEBUGGING_INFO 1 |
| #endif |
| |
| /* |
| * This is how we tell the assembler that a symbol is weak. GAS always |
| * supports weak symbols. |
| */ |
| |
| #define ASM_WEAKEN_LABEL(FILE,NAME) \ |
| do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \ |
| fputc ('\n', FILE); } while (0) |
| |
| /* This is used in ASM_FILE_START */ |
| #undef ARM_OS_NAME |
| #define ARM_OS_NAME "Linux" |
| |
| /* 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} %{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__}" |
| |
| #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 synchronise 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"); \ |
| } |