gcc/config/arm/riscix1-1.h

   1 /* Definitions of target machine for GNU compiler.  ARM RISCiX 1.1x version.
   2    Copyright (C) 1993, 1995, 1997 Free Software Foundation, Inc.
   3    Contributed by Richard Earnshaw (rwe11@cl.cam.ac.uk), based on original
   4               work by Pieter `Tiggr' Schoenmakers (rcpieter@win.tue.nl)
   5               and Martin Simmons (@harleqn.co.uk).
   6
   7 This file is part of GNU CC.
   8
   9 GNU CC is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 2, or (at your option)
  12 any later version.
  13
  14 GNU CC is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with GNU CC; see the file COPYING.  If not, write to
  21 the Free Software Foundation, 59 Temple Place - Suite 330,
  22 Boston, MA 02111-1307, USA.  */
  23
  24 /* RISCiX 1.1x is basically the same as 1.2x except that it doesn't have
  25    symrename or atexit. */
  26
  27 /* Translation to find startup files.  On RISCiX boxes, gcrt0.o is in
  28    /usr/lib.  */
  29 #define STARTFILE_SPEC  \
  30   "%{pg:/usr/lib/gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
  31
  32 #ifndef CPP_PREDEFINES
  33 #define CPP_PREDEFINES  "-Darm -Driscix -Dunix -Asystem(unix) -Acpu(arm) -Amachine(arm)"
  34 #endif
  35
  36 /* Riscix 1.1 doesn't have X/OPEN support, so only accept -mbsd (but ignore
  37    it).
  38    By not having -mxopen and -mno-symrename, we get warning messages,
  39    but everything still compiles.  */
  40 /* None of these is actually used in cc1, so they modify bit 31 */
  41 #define SUBTARGET_SWITCHES \
  42 {"bsd", 0x80000000},
  43
  44
  45 /* Run-time Target Specification.  */
  46 #define TARGET_VERSION  \
  47   fputs (" (ARM/RISCiX)", stderr);
  48
  49 /* This is used in ASM_FILE_START */
  50 #define ARM_OS_NAME "RISCiX"
  51
  52 #ifdef riscos
  53 #define TARGET_WHEN_DEBUGGING  3
  54 #else
  55 #define TARGET_WHEN_DEBUGGING  1
  56 #endif
  57
  58 /* 'char' is signed by default on RISCiX, unsigned on RISCOS.  */
  59 #ifdef riscos
  60 #define DEFAULT_SIGNED_CHAR  0
  61 #else
  62 #define DEFAULT_SIGNED_CHAR  1
  63 #endif
  64
  65 /* Define this if the target system supports the function atexit form the
  66    ANSI C standard.  If this is not defined, and INIT_SECTION_ASM_OP is not
  67    defined, a default exit function will be provided to support C++.
  68    The man page only describes on_exit, but atexit is also there.
  69    This seems to be missing in early versions. */
  70 /*#define HAVE_ATEXIT 1 */
  71 /* Some systems use __main in a way incompatible with its use in gcc, in these
  72    cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
  73    give the same symbol without quotes for an alternative entry point.  You
  74    must define both, or neither. */
  75 #ifndef NAME__MAIN
  76 #define NAME__MAIN "__gccmain"
  77 #define SYMBOL__MAIN __gccmain
  78 #endif
  79
  80 /* Override the normal default CPU */
  81 #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm2
  82
  83 #include "arm/aout.h"
  84
  85 #undef CPP_SPEC
  86 #define CPP_SPEC "\
  87 %(cpp_cpu_arch) %(cpp_apcs_pc) %(cpp_float) %{!ansi: -D_BSD_C} \
  88 "
  89
  90
  91 /* The native RISCiX assembler does not support stabs of any kind; because
  92    the native assembler is not used by the compiler, Acorn didn't feel it was
  93    necessary to put them in!  */
  94
  95 #ifdef DBX_DEBUGGING_INFO
  96 #undef DBX_DEBUGGING_INFO
  97 #endif