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    SubjectRe: Generic syscall ABI support
    On 03/27/2013 08:09 PM, Ley Foon Tan wrote:
    > Need advise regarding the generic syscall ABI support.
    >
    > We are planning to upstream our Nios II kernel (arch/nios2) to mainline.
    > But it doesn't support generic syscall ABI yet (It requires an updated
    > Glibc port as well).
    >
    > The question is, is it a requirement for new arch to support generic
    > syscall ABI when upstreaming? Can we upstream a non-generic syscall ABI
    > first and migrate to generic syscall ABI in future?
    > Thanks.
    >
    > Regards
    > LFTAN
    >

    That would be extremely difficult.

    In general, you should use the generic ABI for a new port unless you
    have *very* strong and convincing reasons not to.

    Given how long the Nios2 port has been in upstreaming (unfortunate, I
    like to play with FPGAs ;) it seems worthwhile to adjust it before
    pushing it.

    -hpa



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