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/* Definitions for TILE-Gx running Linux-based GNU systems with ELF.
   Copyright (C) 2011, 2012
   Free Software Foundation, Inc.
   Contributed by Walter Lee (walt@tilera.com)
 
   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 3, 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 GCC; see the file COPYING3.  If not see
   <http://www.gnu.org/licenses/>.  */
 
#undef CPP_SPEC
#define CPP_SPEC "%{pthread:-D_REENTRANT}"
 
#undef ASM_SPEC
#define ASM_SPEC "%{m32:--32} %{m64:--64}"
 
#undef	LINK_SPEC
#define LINK_SPEC "%{m64:-m elf64tilegx} %{m32:-m elf32tilegx} \
  %{shared:-shared} \
  %{!shared: \
    %{!static: \
      %{rdynamic:-export-dynamic} \
      -dynamic-linker \
        %{ m32: /lib32/ld.so.1} \
        %{!m32: /lib/ld.so.1}} \
    %{static:-static}}"
 
#define MULTILIB_DEFAULTS { "m64" }
 
#define NO_PROFILE_COUNTERS	1
 
#undef MCOUNT_NAME
#define MCOUNT_NAME "__mcount"
 
#undef NEED_INDICATE_EXEC_STACK
#define NEED_INDICATE_EXEC_STACK 1
 
#ifdef TARGET_LIBC_PROVIDES_SSP
/* TILE-Gx glibc provides __stack_chk_guard two pointer-size words before
   tp. */
#define TARGET_THREAD_SSP_OFFSET (-2 * GET_MODE_SIZE (ptr_mode))
#endif
 
/* For __clear_cache in libgcc2.c.  */
#ifdef IN_LIBGCC2
 
#include <arch/icache.h>
 
/* Use the minimum page size of 4K.  Alternatively we can call
   getpagesize() but it introduces a libc dependence.  */
#undef CLEAR_INSN_CACHE
#define CLEAR_INSN_CACHE(beg, end) invalidate_icache (beg, end - beg, 4096)
 
#else
 
/* define CLEAR_INSN_CACHE so that gcc knows to expand __builtin__clear_cache
   to the libraray call.  */
#undef CLEAR_INSN_CACHE
#define CLEAR_INSN_CACHE 1
 
#endif