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Annotation of GNUtools/cc/config/arm/riscix1-1.h, revision 1.1.1.1

1.1       root        1: /* Definitions of target machine for GNU compiler.  ARM RISCiX 1.1x version.
                      2:    Copyright (C) 1993 Free Software Foundation, Inc.
                      3:    Contributed by Richard Earnshaw ([email protected]), based on original
                      4:              work by Pieter `Tiggr' Schoenmakers ([email protected])
                      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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
                     22: 
                     23: /* RISCix 1.1x is basically the same as 1.2x except that it doesn't have
                     24:    symrename or atexit. */
                     25: 
                     26: /* Translation to find startup files.  On RISCiX boxes, gcrt0.o is in
                     27:    /usr/lib.  */
                     28: #define STARTFILE_SPEC  \
                     29:   "%{pg:/usr/lib/gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
                     30: 
                     31: #ifndef CPP_PREDEFINES
                     32: #define CPP_PREDEFINES  "-Darm -Driscix -Dunix -Asystem(unix) -Acpu(arm) -Amachine(arm)"
                     33: #endif
                     34: 
                     35: #ifndef CPP_SPEC
                     36: #define CPP_SPEC "%{m6:-D__arm6__} %{!ansi: -D_BSD_C}"
                     37: #endif
                     38: 
                     39: /* Riscix 1.1 doesn't have X/OPEN support, so only accept -mbsd (but ignore
                     40:    it).  
                     41:    By not having -mxopen and -mno-symrename, we get warning messages,
                     42:    but everything still compiles.  */
                     43: /* None of these is actually used in cc1, so they modify bit 31 */
                     44: #define ARM_EXTRA_TARGET_SWITCHES \
                     45: {"bsd", 0x80000000}, 
                     46: 
                     47:     
                     48: 
                     49: /* Run-time Target Specification.  */
                     50: #define TARGET_VERSION  \
                     51:   fputs (" (ARM/RISCiX)", stderr);
                     52: 
                     53: /* This is used in ASM_FILE_START */
                     54: #define ARM_OS_NAME "RISCiX"
                     55: 
                     56: #ifdef riscos
                     57: #define TARGET_WHEN_DEBUGGING  3
                     58: #else
                     59: #define TARGET_WHEN_DEBUGGING  1
                     60: #endif
                     61: 
                     62: /* 'char' is signed by default on RISCiX, unsigned on RISCOS.  */
                     63: #ifdef riscos
                     64: #define DEFAULT_SIGNED_CHAR  0
                     65: #else
                     66: #define DEFAULT_SIGNED_CHAR  1
                     67: #endif
                     68: 
                     69: /* Define this if the target system supports the function atexit form the
                     70:    ANSI C standard.  If this is not defined, and INIT_SECTION_ASM_OP is not
                     71:    defined, a default exit function will be provided to support C++.  
                     72:    The man page only describes on_exit, but atexit is also there.  
                     73:    This seems to be missing in early versions. */
                     74: /*#define HAVE_ATEXIT 1 */
                     75: /* Some systems use __main in a way incompatible with its use in gcc, in these
                     76:    cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
                     77:    give the same symbol without quotes for an alternative entry point.  You
                     78:    must define both, or niether. */
                     79: #ifndef NAME__MAIN
                     80: #define NAME__MAIN "__gccmain"
                     81: #define SYMBOL__MAIN __gccmain
                     82: #endif
                     83: 
                     84: #include "arm/arm.h"
                     85: 
                     86: /* The native RISCiX assembler does not support stabs of any kind; because
                     87:    the native assembler is not used by the compiler, Acorn didn't feel it was
                     88:    necessary to put them in!  */
                     89: 
                     90: #ifdef DBX_DEBUGGING_INFO
                     91: #undef DBX_DEBUGGING_INFO
                     92: #endif

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