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/* Definitions of target machine for GNU compiler,
for IBM RS/6000 running MACH.
Copyright (C) 1992, 1999 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, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#define TARGET_AIX 0
/* Print subsidiary information on the compiler version in use. */
#define TARGET_VERSION fprintf (stderr, " (Mach-RS/6000)");
/* We don't define AIX under MACH; instead we define `unix'. */
#undef TARGET_OS_CPP_BUILTINS
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
builtin_define_std ("rios"); \
builtin_define ("_IBMR2"); \
builtin_define_std ("unix"); \
builtin_assert ("system=unix"); \
builtin_assert ("system=mach"); \
builtin_assert ("cpu=rs6000"); \
builtin_assert ("machine=rs6000"); \
} \
while (0)
/* 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. */
#define NEED_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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