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/* Definitions of target machine for GNU compiler,
for IBM RS/6000 running MACH.
Copyright (C) 1992 Free Software Foundation, Inc.
Contributed by Richard Kenner (kenner@nyu.edu)
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 GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "rs6000/rs6000.h"
/* We don't define AIX under MACH; instead we define `unix'. */
#undef CPP_PREDEFINES
#define CPP_PREDEFINES "-Drios -D_IBMR2 -Dunix -Asystem(unix) -Asystem(mach) -Acpu(rs6000) -Amachine(rs6000)"
/* Define different binder options for MACH. */
#undef LINK_SPEC
#define LINK_SPEC \
"-T0x10000000 -D0x20000000 -K %{!nostdlib:%{!r*:%{!e*:-e __start}}} \
-bnoso -berrmsg -btextro -bhalt:4 -bnodelcsect"
/* MACH doesn't have atexit. */
#undef HAVE_ATEXIT
/* Don't default to pcc-struct-return, because gcc is the only compiler, and
we want to retain compatibility with older gcc versions. */
#define DEFAULT_PCC_STRUCT_RETURN 0
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