Re: [9fans] gsoc linuxemu project help

[David Leimbach <leimy2k@gmail.com>]

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2009/3/26 Zhao Shuai <upczhsh@163.com>

>
> >Does creative masoshism count as GSoC project?  I dont know :)
> >
> >Hm...  These points all belong to the big topic, getting modern linux
> >distro binaries (NTPL stuff) to work.  This would be a good thing
> >because I'm stuck on some old debian sarge that was just moved to the
> >archives.
> >
> >Step one would be to get the simple single-threaded stuff to run like
> >echo and cat.  The part point here is TLS.  I had a somewhat working
> >plan9 driver for it but never packaged it up because i wanted the
> >whole thing working before submitting a kernel patch. You may later
> >progress to multithreaded apps wich use futex syscall.
> >
> >The way I work on linuxemu is randomly trying stuff out, see where it
> >crashes...  try to understand why it crashes...  implement/fix
> >syscalls and try again.  Sometimes it easy and sometimes you scratch
> >your head for a several months.  Its hard to estimate the time needed
> >to get X running because you never know what crazy optimization shit
> >the linux/libc guys come up with next to make you suffer.
> >
> >Here is always a huge risk of failure in linuxemu because all the
> >details are in Ulrich Dreppers head only or encrypted with
> >c-preprocessor-ifdef-encryption in the glibc-code so getting help is
> >very hard and most of the stuff you have to find out yourself (this
> >may cause brain damage over time).
> >
> >I cant (officialy) mentor you as I'm short of time and have no
> >scientific background or something, but I will try to give you all
> >infeormation/code and support I have...  Its good to hear that someone
> >starts taking over some work!  :) Just drop me an email.  I may be
> >in irc from time to time too but dont count on it.
> >
> >--
> >cinap
>
>

>
> If nothing else in linuxemu can make a GSoc project, I would like to give NTPL a try.
>
> Is NTPL the same thing as NPTL, and everyone is just repeatedly spelling
their acronyms incorrectly?



>
> Now I wonder how does Linuxemu work? I guess it parses the linux binary and whenever
> encounter a system call, emulate using Plan 9's function. I haven't dig into the source
> code, just guess.
>
>
>
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