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Re: Porting NPTL to GNU/kFreeBSD?
On Sat, Nov 12, 2005 at 01:38:38AM +0000, Brian M. Carlson wrote:
> Are there any portability traps of which I need to be aware (other than the
> obvious)?
Like that the library is fundamentally designed around Linux process
assumption, ELF TLS, and the futex system?
A fully POSIX thread library for your port is a good idea, which LinuxThreads
isn't. However, I am skeptical about how much mileage you'll be able
to get from NPTL without duplicating some of its interfaces in FreeBSD.
> FreeBSD's libpthread/libkse is M:N, while libthr is 1:1. I am unsure whether
> libthr's kernel support works on i386, so I'd like to get NPTL to
> conditionally support M:N if possible. Is this a silly idea?
Yes, this is a silly idea. NPTL is built on the assumption that kernel
processes are extremely lightweight.
--
Daniel Jacobowitz
CodeSourcery, LLC