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    SubjectRe: X32 psABI status
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    On Sat, Feb 12, 2011 at 1:10 PM, Florian Weimer <fw@deneb.enyo.de> wrote:
    > * H. J. Lu:
    >
    >> We made lots of progresses on x32 pABI:
    >>
    >> https://sites.google.com/site/x32abi/
    >>
    >> 1. Kernel interface with syscall is close to be finalized.
    >> 2. GCC x32 branch is stabilizing.
    >> 3. The Bionic C library works with the syscall kernel interface.
    >>
    >> The next major milestone will be x32 glibc port.
    >
    > It is a bit difficult to extract useful information from these
    > resources.

    That is true. Contributions are more than welcome.

    > Is off_t 32 bits?  Why is the ia32 compatiblity kernel interface used?

    Yes.

    > I'm sure a lot of people want to get rid of that in cases where they
    > control the whole software stack.

    That is debatable. The current thought is the x32 user space API
    is the same as is ia32. time_t is also an issue.

    > Is stack alignment to 16 bytes beneficial for X32?
    >

    Even ia32 uses 16byte stack alignment and we will make it
    official soon via an amendment to the i386 psABI.

    --
    H.J.
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