117 lines
4.0 KiB
C
117 lines
4.0 KiB
C
/* Definitions of target machine for GNU compiler. ARM RISCiX version.
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Copyright (C) 1993 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
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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 \
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"-Darm -Driscix -Dunix -Asystem(unix) -Acpu(arm) -Amachine(arm)"
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#endif
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#if 0
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#define CPP_PREDEFINES "-Darm -Driscos -Acpu(arm) -Amachine(arm)"
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#endif
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#ifndef CPP_SPEC
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#define CPP_SPEC "%{m6:-D__arm6__} \
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%{mbsd:%{pedantic:%e-mbsd and -pedantic incompatible} -D_BSD_C} \
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%{mxopen:%{mbsd:%e-mbsd and -mxopen incompatible} \
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%{pedantic:%e-mxopen and -pedantic incompatible} -D_XOPEN_C} \
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%{!mbsd:%{!mxopen:%{!ansi: -D_BSD_C}}}"
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#endif
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/* RISCiX has some wierd symbol name munging, that is done to the object module
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after assembly, which enables multiple libraries to be supported within
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one (possibly shared) library. It basically changes the symbol name of
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certain symbols (for example _bcopy is converted to _$bcopy if using BSD)
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Symrename's parameters are determined as follows:
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-mno-symrename Don't run symrename
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-mbsd symrename -BSD <file>
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-mxopen symrename -XOPEN <file>
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-ansi symrename - <file>
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<none> symrename -BSD <file>
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*/
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#ifndef ASM_FINAL_SPEC
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#if !defined (CROSS_COMPILER)
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#define ASM_FINAL_SPEC "\
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%{!mno-symrename: \
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\n /usr/bin/symrename \
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-%{mbsd:%{ansi:%e-mbsd and -ansi incompatible}BSD}\
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%{mxopen:%{mbsd:%e-mbsd and -mxopen incompatible}\
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%{ansi:%e-mxopen and -ansi incompatible}XOPEN}\
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%{!mbsd:%{!mxopen:%{!ansi:BSD}}} %{c:%{o*:%*}%{!o*:%b.o}}%{!c:%U.o}}"
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#endif
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#endif
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/* None of these is actually used in cc1, so they modify bit 31 */
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#define ARM_EXTRA_TARGET_SWITCHES \
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{"bsd", 0x80000000}, {"xopen", 0x80000000}, {"no-symrename", 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 supports the function atexit form the
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ANSI C standard. If this is not defined, and INIT_SECTION_ASM_OP 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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#define HAVE_ATEXIT 1
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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 niether. */
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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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#include "arm/arm.h"
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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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