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Annotation of GNUtools/cc/config/arm/riscix.h, revision 1.1

1.1     ! root        1: /* Definitions of target machine for GNU compiler.  ARM RISCiX 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: /* Translation to find startup files.  On RISCiX boxes, gcrt0.o is in
        !            24:    /usr/lib.  */
        !            25: #define STARTFILE_SPEC  \
        !            26:   "%{pg:/usr/lib/gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
        !            27: 
        !            28: #ifndef CPP_PREDEFINES
        !            29: #define CPP_PREDEFINES  \
        !            30:     "-Darm -Driscix -Dunix -Asystem(unix) -Acpu(arm) -Amachine(arm)"
        !            31: #endif
        !            32: #if 0
        !            33: #define CPP_PREDEFINES  "-Darm -Driscos -Acpu(arm) -Amachine(arm)"
        !            34: #endif
        !            35: 
        !            36: #ifndef CPP_SPEC
        !            37: #define CPP_SPEC "%{m6:-D__arm6__} \
        !            38:        %{mbsd:%{pedantic:%e-mbsd and -pedantic incompatible} -D_BSD_C} \
        !            39:        %{mxopen:%{mbsd:%e-mbsd and -mxopen incompatible}               \
        !            40:          %{pedantic:%e-mxopen and -pedantic incompatible} -D_XOPEN_C}  \
        !            41:        %{!mbsd:%{!mxopen:%{!ansi: -D_BSD_C}}}"
        !            42: #endif
        !            43: 
        !            44: /* RISCiX has some wierd symbol name munging, that is done to the object module
        !            45:    after assembly, which enables multiple libraries to be supported within
        !            46:    one (possibly shared) library.  It basically changes the symbol name of
        !            47:    certain symbols (for example _bcopy is converted to _$bcopy if using BSD)
        !            48:    Symrename's parameters are determined as follows:
        !            49:      -mno-symrename    Don't run symrename
        !            50:      -mbsd     symrename -BSD <file>
        !            51:      -mxopen   symrename -XOPEN <file>
        !            52:      -ansi     symrename - <file>
        !            53:      <none>    symrename -BSD <file>
        !            54:  */
        !            55: 
        !            56: #ifndef ASM_FINAL_SPEC
        !            57: #if !defined (CROSS_COMPILER)
        !            58: #define ASM_FINAL_SPEC "\
        !            59: %{!mno-symrename: \
        !            60:        \n /usr/bin/symrename \
        !            61:        -%{mbsd:%{ansi:%e-mbsd and -ansi incompatible}BSD}\
        !            62: %{mxopen:%{mbsd:%e-mbsd and -mxopen incompatible}\
        !            63: %{ansi:%e-mxopen and -ansi incompatible}XOPEN}\
        !            64: %{!mbsd:%{!mxopen:%{!ansi:BSD}}} %{c:%{o*:%*}%{!o*:%b.o}}%{!c:%U.o}}"
        !            65: #endif
        !            66: #endif
        !            67: 
        !            68: /* None of these is actually used in cc1, so they modify bit 31 */
        !            69: #define ARM_EXTRA_TARGET_SWITCHES \
        !            70: {"bsd", 0x80000000}, {"xopen", 0x80000000}, {"no-symrename", 0x80000000},
        !            71: 
        !            72:     
        !            73: 
        !            74: /* Run-time Target Specification.  */
        !            75: #define TARGET_VERSION  \
        !            76:   fputs (" (ARM/RISCiX)", stderr);
        !            77: 
        !            78: /* This is used in ASM_FILE_START */
        !            79: #define ARM_OS_NAME "RISCiX"
        !            80: 
        !            81: #ifdef riscos
        !            82: #define TARGET_WHEN_DEBUGGING  3
        !            83: #else
        !            84: #define TARGET_WHEN_DEBUGGING  1
        !            85: #endif
        !            86: 
        !            87: /* 'char' is signed by default on RISCiX, unsigned on RISCOS.  */
        !            88: #ifdef riscos
        !            89: #define DEFAULT_SIGNED_CHAR  0
        !            90: #else
        !            91: #define DEFAULT_SIGNED_CHAR  1
        !            92: #endif
        !            93: 
        !            94: /* Define this if the target system supports the function atexit form the
        !            95:    ANSI C standard.  If this is not defined, and INIT_SECTION_ASM_OP is not
        !            96:    defined, a default exit function will be provided to support C++.  
        !            97:    The man page only describes on_exit, but atexit is also there.  */
        !            98: #define HAVE_ATEXIT 1
        !            99: /* Some systems use __main in a way incompatible with its use in gcc, in these
        !           100:    cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
        !           101:    give the same symbol without quotes for an alternative entry point.  You
        !           102:    must define both, or niether. */
        !           103: #ifndef NAME__MAIN
        !           104: #define NAME__MAIN "__gccmain"
        !           105: #define SYMBOL__MAIN __gccmain
        !           106: #endif
        !           107: 
        !           108: #include "arm/arm.h"
        !           109: 
        !           110: /* The native RISCiX assembler does not support stabs of any kind; because
        !           111:    the native assembler is not used by the compiler, Acorn didn't feel it was
        !           112:    necessary to put them in!  */
        !           113: 
        !           114: #ifdef DBX_DEBUGGING_INFO
        !           115: #undef DBX_DEBUGGING_INFO
        !           116: #endif

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