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    SubjectRe: [PATCH 29/30] microblaze_mmu_v1: stat.h MMU update
    Arnd Bergmann wrote:
    > On Thursday 30 April 2009, Michal Simek wrote:
    >> 2. header cleanup -> some of them is pain because I have to recompile toolchain
    >> that's should be a big deal but after recompilation kernel, user apps I am getting some problems.
    > Yes, I understand that you have a circular dependency there, but fixing
    > the ABI can only become harder with time, as more people start using
    > the current kernel/toolchain combination.

    Here is the one advantage that in mainline are only some drivers for Microblaze
    and the rest is in petalinux. And people can use whole distribution.

    >> 3. syscall cleanup -> we still have old libc and I can't simple remove ancient syscalls
    > I had hoped that the way I set __ARCH_WANT_SYSCALL_* in the microblaze
    > unistd.h would provide an easy way to migrate, because this still defines
    > almost all traditional system calls (I haven't double-checked if some more
    > are currently used on microblaze, but they would be easy to add).
    > This means that as a first step, rebuilding the tool chain (as above) should
    > be sufficient and not require source-level changes to libc. From that point,
    > you can remove the remaining __ARCH_WANT_SYSCALL_* defintions one by one,
    > and change the libc accordingly.
    > I could also try building uclibc with the generic headers if I find the
    > time. Which version do you use, just upstream or do you have a private
    > libc tree with more changes?

    That's good question but harder answer.
    Glibc is any ancient 3-4 years non mainline version. There are some backports too.
    I have some comments to it but it is better not to write them.

    uclibc version is a little bit better. I had functional port half year mainline version
    + some private fixes. Currently John W is working on it to get working version with gcc 4.1.2.
    He has some troubles with it but I hope he solve it soon.

    We have troubles because none have taken care about. I hope that we are able to update
    all the things and repair everything what wrong it.


    > Arnd <><

    Michal Simek, Ing. (M.Eng)
    w: p: +42-0-721842854

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