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Annotation of GNUtools/cc/config/m68k/dpx2.ifile, revision 1.1

1.1     ! root        1: /*
        !             2:  *      dpx2.ifile - for collectless G++ on Bull DPX/2
        !             3:  *     
        !             4:  *      Peter Schauer <[email protected]>
        !             5:  *
        !             6:  *      Install this file as $prefix/gcc-lib/dpx2/VERSION/gcc.ifile
        !             7:  *     and comment out the lines referring to COLLECT at the top
        !             8:  *      of Makefile before building GCC.
        !             9:  *     
        !            10:  *      This file has been tested with gcc-2.2.2 on a DPX/2 340
        !            11:  *      running BOS 2.00.45, if it doesn't work for you, stick
        !            12:  *      with collect.
        !            13:  *     --sjg
        !            14:  */
        !            15: /*
        !            16:  *     Ifile to link with memory configured at 0.
        !            17:  *     BLOCK to an offset that leaves room for many headers ( the value
        !            18:  *     here allows for a file header, an outheader, and up to 11 section 
        !            19:  *     headers on most systems.
        !            20:  *     BIND to an address that excludes page 0 from being mapped. The value
        !            21:  *     used for BLOCK should be or'd into this value. Here I'm setting BLOCK
        !            22:  *     to 0x200 and BIND to ( 0x100000 | value_used_for(BLOCK) )
        !            23:  *     If you are using shared libraries, watch that you don't overlap the
        !            24:  *     address ranges assigned for shared libs.
        !            25:  *
        !            26:  *     GROUP BIND to a location in the next segment.  Here, the only value
        !            27:  *     that you should change (I think) is that within NEXT, which I've set
        !            28:  *     to my hardware segment size. You can always use a larger size, but not
        !            29:  *     a smaller one.
        !            30:  */
        !            31: SECTIONS
        !            32: {
        !            33:        .text BIND(0x100200) BLOCK (0x200) :
        !            34:        {
        !            35:                 /* plenty of room for headers */
        !            36:                *(.init)
        !            37:                *(.text)
        !            38:                _vfork = _fork; /* I got tired of editing peoples sloppy code */
        !            39:                *(.fini)
        !            40:        }
        !            41:        GROUP BIND( NEXT(0x100000) + (ADDR(.text) + (SIZEOF(.text)) % 0x1000)):
        !            42:        {
        !            43:                        .data : {
        !            44:                                ___CTOR_LIST__ = . ; 
        !            45:                                . += 4 ;        /* leading NULL */
        !            46:                                *(.ctor) 
        !            47:                                . += 4 ;        /* trailing NULL */
        !            48:                                ___DTOR_LIST__ = . ;
        !            49:                                . += 4 ;        /* leading NULL */
        !            50:                                *(.dtor) 
        !            51:                                . += 4 ;        /* trailing NULL */
        !            52:                         }
        !            53:                        .bss : { }
        !            54:        }
        !            55: }

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