Re: RFC: import of posix_spawn GSoC results

[yamt%mwd.biglobe.ne.jp@localhost (YAMAMOTO Takashi)]

hi,

> On Thu, Jan 26, 2012 at 03:11:14PM +0000, YAMAMOTO Takashi wrote:
>> do you mean rumphijack?  iirc it sits between application and libc.
> 
> It overwrites the strong syscall symbols, so it covers libc itself as
> well.

a libc implementation of posix_spawn can even bypass plt if it wants,
can't it?

having said that, if rump or whatever want to alter the behaviour of
other libraries by overwriting low-level symbols, it's their responsibility
to do it in a safe way, IMO.

anyway, i don't think an in-kernel implementation is better in this regard.
ie. rump needs to override posix_spawn as a whole.

YAMAMOTO Takashi

> 
> Joerg