/* Definitions of target machine for GNU compiler. ARM RISCiX 1.1x version. Copyright (C) 1993, 1995, 1997, 1999 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" #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 lacks the function atexit from the ANSI C standard. If this is defined, and ON_EXIT 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. FIXME Should we define ON_EXIT here? */ #define NEED_ATEXIT /* 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" #define SUBTARGET_CPP_SPEC "%{!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