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jeremybenn |
/* Definitions of target machine for GNU compiler.
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ARM Linux-based GNU systems version.
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Copyright (C) 1997, 1998, 1999, 2000, 2001, 2004, 2007
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Free Software Foundation, Inc.
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Contributed by Russell King <rmk92@ecs.soton.ac.uk>.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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/* This is how we tell the assembler that a symbol is weak.
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GAS always supports weak symbols. */
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/* Unsigned chars produces much better code than signed. */
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#define DEFAULT_SIGNED_CHAR 0
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#undef SUBTARGET_CPP_SPEC
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#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
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#undef SIZE_TYPE
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#define SIZE_TYPE "unsigned int"
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "int"
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/* Use the AAPCS type for wchar_t, or the previous Linux default for
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non-AAPCS. */
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#undef WCHAR_TYPE
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#define WCHAR_TYPE (TARGET_AAPCS_BASED ? "unsigned int" : "long int")
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE BITS_PER_WORD
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/* Clear the instruction cache from `beg' to `end'. This makes an
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inline system call to SYS_cacheflush. */
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#define CLEAR_INSN_CACHE(BEG, END) \
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{ \
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register unsigned long _beg __asm ("a1") = (unsigned long) (BEG); \
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register unsigned long _end __asm ("a2") = (unsigned long) (END); \
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register unsigned long _flg __asm ("a3") = 0; \
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__asm __volatile ("swi 0x9f0002 @ sys_cacheflush" \
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: "=r" (_beg) \
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: "0" (_beg), "r" (_end), "r" (_flg)); \
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}
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