Which target should i assign?

[hesi726]

    Which target should i assign when I want build a cross-compile with gcc at my i686-linux-2.2.14 for sun saloris(sparc)?
Is it sparc-elf?If so,after i build the cross-compile ,what should i do? 
    For example , I compile and link a "Hello,World" program with
sparc-elf-gcc at my linux machine,but it don't work at solaris ,
why?
    I sutdy gcc recently,please help me!
    Thanks very much!
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