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    SubjectRe: [PATCH] x86_64: Implement personality ADDR_LIMIT_32BIT
    > > And personality() is not thread local/safe, so it's not a particularly
    > > good interface to use later.
    > qemu can call personality() before any threads will be created.

    It still makes it unsuitable for a lot of other applications.
    e.g. a JVM using 32bit pointers couldn't use it because it would
    affect native C threads running in the same process.

    > > Per system call switches are preferable
    > > and more flexible.
    > Per syscall switches are cool, but I don't see any advantage from it for
    > qemu.

    Linux interfaces are not supposed to be "interfaces for qemu" but generally
    applicable interfaces.


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