104 lines
3.3 KiB
C
104 lines
3.3 KiB
C
/* Definitions of target machine for GNU compiler. ARM RISCiX 1.1x version.
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Copyright (C) 1993, 1995, 1997, 1999 Free Software Foundation, Inc.
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Contributed by Richard Earnshaw (rwe11@cl.cam.ac.uk), based on original
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work by Pieter `Tiggr' Schoenmakers (rcpieter@win.tue.nl)
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and Martin Simmons (@harleqn.co.uk).
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* RISCiX 1.1x is basically the same as 1.2x except that it doesn't have
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symrename or atexit. */
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/* Translation to find startup files. On RISCiX boxes, gcrt0.o is in
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/usr/lib. */
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#define STARTFILE_SPEC \
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"%{pg:/usr/lib/gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
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#ifndef CPP_PREDEFINES
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#define CPP_PREDEFINES "-Darm -Driscix -Dunix -Asystem=unix"
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#endif
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/* Riscix 1.1 doesn't have X/OPEN support, so only accept -mbsd (but ignore
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it).
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By not having -mxopen and -mno-symrename, we get warning messages,
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but everything still compiles. */
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/* None of these is actually used in cc1, so they modify bit 31 */
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#define SUBTARGET_SWITCHES \
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{"bsd", 0x80000000, ""},
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/* Run-time Target Specification. */
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#define TARGET_VERSION \
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fputs (" (ARM/RISCiX)", stderr);
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/* This is used in ASM_FILE_START */
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#define ARM_OS_NAME "RISCiX"
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#ifdef riscos
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#define TARGET_WHEN_DEBUGGING 3
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#else
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#define TARGET_WHEN_DEBUGGING 1
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#endif
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/* 'char' is signed by default on RISCiX, unsigned on RISCOS. */
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#ifdef riscos
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#define DEFAULT_SIGNED_CHAR 0
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#else
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#define DEFAULT_SIGNED_CHAR 1
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#endif
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/* Define this if the target system lacks the function atexit from the
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ANSI C standard. If this is defined, and ON_EXIT is not
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defined, a default exit function will be provided to support C++.
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The man page only describes on_exit, but atexit is also there.
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This seems to be missing in early versions.
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FIXME Should we define ON_EXIT here? */
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#define NEED_ATEXIT
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/* Some systems use __main in a way incompatible with its use in gcc, in these
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cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
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give the same symbol without quotes for an alternative entry point. You
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must define both, or neither. */
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#ifndef NAME__MAIN
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#define NAME__MAIN "__gccmain"
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#define SYMBOL__MAIN __gccmain
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#endif
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/* Override the normal default CPU */
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#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm2
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/* r10 is reserved by RISCiX */
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#define SUBTARGET_CONDITIONAL_REGISTER_USAGE \
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fixed_regs[10] = 1; \
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call_used_regs[10] = 1;
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#include "arm/aout.h"
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#define SUBTARGET_CPP_SPEC "%{!ansi: -D_BSD_C}"
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/* The native RISCiX assembler does not support stabs of any kind; because
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the native assembler is not used by the compiler, Acorn didn't feel it was
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necessary to put them in! */
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#ifdef DBX_DEBUGGING_INFO
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#undef DBX_DEBUGGING_INFO
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#endif
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