Subversion Repositories openrisc_2011-10-31

/* Definitions of target machine for GCC.  m68k/ColdFire based uClinux system
   using ELF objects with special linker post-processing to produce FLAT
   executables.
 
   Copyright (C) 2003, 2007 Free Software Foundation, Inc.
 
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/>.  */
 
 
/* The old uClinux ABI used 80-byte "long double"s for ColdFire too.  */
#undef LONG_DOUBLE_TYPE_SIZE
#define LONG_DOUBLE_TYPE_SIZE 80
#undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 80
 
/* Undo the definition of STARTFILE_SPEC from m68kelf.h so we'll
   pick the default from gcc.c (just link crt0.o from multilib dir).  */
#undef	STARTFILE_SPEC
 
/* Override the default LIB_SPEC from gcc.c.  We don't currently support
   profiling, or libg.a.  */
#undef LIB_SPEC
#define LIB_SPEC "\
%{mid-shared-library:-R libc.gdb%s -elf2flt -shared-lib-id 0} -lc \
"
 
/* we don't want a .eh_frame section.  */
#define EH_FRAME_IN_DATA_SECTION
 
/* ??? Quick hack to get constructors working.  Make this look more like a
   COFF target, so the existing dejagnu/libgloss support works.  A better
   solution would be to make the necessary dejagnu and libgloss changes so
   that we can use normal the ELF constructor mechanism.  */
#undef INIT_SECTION_ASM_OP
#undef FINI_SECTION_ASM_OP
#undef ENDFILE_SPEC
#define ENDFILE_SPEC ""
 
/* Bring in standard linux defines */
#undef TARGET_OS_CPP_BUILTINS
#define TARGET_OS_CPP_BUILTINS()		\
  do						\
    {						\
	builtin_define_std ("mc68000");		\
	builtin_define ("__uClinux__");		\
	builtin_define_std ("linux");		\
	builtin_define_std ("unix");		\
	builtin_define ("__gnu_linux__");	\
	builtin_assert ("system=linux");	\
	builtin_assert ("system=unix");		\
	builtin_assert ("system=posix");	\
	if (TARGET_ID_SHARED_LIBRARY)		\
	  builtin_define ("__ID_SHARED_LIBRARY__"); \
    }						\
  while (0)