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/* 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"); \
}
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