Thread specific data

Thread specific data

[Anumula Venkat]

Hello Friends,

    Can somebody help in knowing how to access thread
data structures on kernel side.i.e accessing thread
specific data in stack segment.

Regards
Venkat

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Re: Thread specific data

[Christoph Hellwig]

On Sun, Dec 16, 2001 at 04:52:19AM -0800, Anumula Venkat wrote:
> Hello Friends,
> 
>     Can somebody help in knowing how to access thread
> data structures on kernel side.i.e accessing thread
> specific data in stack segment.

The Linux kernel has a unified process/thread concept so there isn't
really a 'thread data structure' in the kernel.  See linux/sched.h
for details.

For userspace stack this is handle by glibc/linuxthreads.  On i686
it uses sys_modify_ldt to get per-thread segments, not sure how it
is handled on older CPUs / other architectures.

	Christoph

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