Help:Question about m68k-coff gcc-lib and newlib?

["Cliff Tsai" <clifftsai at minecard dot com dot tw>]

Hi:

    After build m68k-coff,I found there are following dirs and files under  \m68k-coff\lib\gcc-lib\m68k-coff\2.95.2

    \m5200\ligcc.a

    \m68000\libgcc.a

    \mcpu32libgcc.a

    \msoft-float\libgcc.a

    (*)libgcc.a

     .

     .

  Question:

 

    (1) I don't know the /msoft-float/libgcc.a  is for what kind of cpu(m68k,m5200,mcpu32...)

 

    (2) the (*)libgcc.a is for what kind of cpu?

  

    (3) How to change the configuration:

       

        I've found t-m68kbare,t-m68kelf,t-mot3300....under gcc\config\m68k.

        For example in t-m68kbare:

 

        MULTILIB_OPTIONS = m68000/m68020/m5200/mcpu32 m68881/msoft-float
        MULTILIB_DIRNAMES =
        MULTILIB_MATCHES = m68000=mc68000 m68000=m68302 mcpu32=m68332 m68020=mc68020    \    

            m68020=m68040 m68020=m68060

        MULTILIB_EXCEPTIONS = m68000/msoft-float m5200/m68881 m5200/msoft-float mcpu32/m68881    \   

            mcpu32/msoft-float

             .......

 

       Do I need to write my own t-m68kcoff?

 

    (4) When build m68k-coff-gcc,what t-*** file does it use to configure it's gcc-lib

   

    (5) When configure newlib for m68k.Does it use the same t-*** file as in (4) ?