What does "nptl" stand for?

Jakub Jelinek jakub at redhat.com
Wed Jan 21 15:02:33 UTC 2004

On Wed, Jan 21, 2004 at 02:55:30PM +0000, Dave Jones wrote:
> the 2.4.22 is the base kernel from kernel.org that everything is built
> on top of.  the 1.2153 is a CVS ident (so gets bumped with every change
> I check in). the .nptl is 'native posix threading library'.
> glibc does various magick if it finds its running on a 2.6 kernel,
> or a 2.4 kernel with a .nptl suffix. If it doesn't, then it falls back
> to the older threading model iirc.

To be precise, if it finds <= 2.4 kernel without .nptl suffix, FC1 glibc
issues a dummy syscall when starting every program to find out if that
kernel supports NPTL.  The .nptl suffix is a magic which helps avoiding this


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