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/* Definitions of target machine for GNU compiler. ARM RISCiX 1.1x version.
Copyright (C) 1993, 1995, 1997 Free Software Foundation, Inc.
Contributed by Richard Earnshaw (rwe11@cl.cam.ac.uk), based on original
work by Pieter `Tiggr' Schoenmakers (rcpieter@win.tue.nl)
and Martin Simmons (@harleqn.co.uk).
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. */
/* RISCiX 1.1x is basically the same as 1.2x except that it doesn't have
symrename or atexit. */
/* Translation to find startup files. On RISCiX boxes, gcrt0.o is in
/usr/lib. */
#define STARTFILE_SPEC \
"%{pg:/usr/lib/gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
#ifndef CPP_PREDEFINES
#define CPP_PREDEFINES "-Darm -Driscix -Dunix -Asystem(unix) -Acpu(arm) -Amachine(arm)"
#endif
/* Riscix 1.1 doesn't have X/OPEN support, so only accept -mbsd (but ignore
it).
By not having -mxopen and -mno-symrename, we get warning messages,
but everything still compiles. */
/* None of these is actually used in cc1, so they modify bit 31 */
#define SUBTARGET_SWITCHES \
{"bsd", 0x80000000, ""},
/* Run-time Target Specification. */
#define TARGET_VERSION \
fputs (" (ARM/RISCiX)", stderr);
/* This is used in ASM_FILE_START */
#define ARM_OS_NAME "RISCiX"
#ifdef riscos
#define TARGET_WHEN_DEBUGGING 3
#else
#define TARGET_WHEN_DEBUGGING 1
#endif
/* 'char' is signed by default on RISCiX, unsigned on RISCOS. */
#ifdef riscos
#define DEFAULT_SIGNED_CHAR 0
#else
#define DEFAULT_SIGNED_CHAR 1
#endif
/* Define this if the target system supports the function atexit form the
ANSI C standard. If this is not defined, and INIT_SECTION_ASM_OP is not
defined, a default exit function will be provided to support C++.
The man page only describes on_exit, but atexit is also there.
This seems to be missing in early versions. */
/*#define HAVE_ATEXIT 1 */
/* Some systems use __main in a way incompatible with its use in gcc, in these
cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
give the same symbol without quotes for an alternative entry point. You
must define both, or neither. */
#ifndef NAME__MAIN
#define NAME__MAIN "__gccmain"
#define SYMBOL__MAIN __gccmain
#endif
/* Override the normal default CPU */
#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm2
/* r10 is reserved by RISCiX */
#define SUBTARGET_CONDITIONAL_REGISTER_USAGE \
fixed_regs[10] = 1; \
call_used_regs[10] = 1;
#include "arm/aout.h"
#undef CPP_SPEC
#define CPP_SPEC "\
%(cpp_cpu_arch) %(cpp_apcs_pc) %(cpp_float) %{!ansi: -D_BSD_C} \
"
/* The native RISCiX assembler does not support stabs of any kind; because
the native assembler is not used by the compiler, Acorn didn't feel it was
necessary to put them in! */
#ifdef DBX_DEBUGGING_INFO
#undef DBX_DEBUGGING_INFO
#endif
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