Re: [9fans] gsoc linuxemu project help

["Zhao Shuai" <upczhsh@163.com>]

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>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.

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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