Re: [PATCH] Make sysenter support optional

[Ulrich Drepper <drepper@redhat.com>]

Matt Mackall wrote:
> Ok, let me be explicit: think systems with absolutely no facility for
> recording or displaying a backtrace.

You don't know much about unwinding, do you?  The same information is
needed for C++ exception handling, thread cancellation, etc.  Now go on
and tell me you don't need this either.


> As far as I'm aware, uclibc has no vdso support, so it might as well
> not exist for systems using it.

And I told you that the support which magically makes all this sometimes
work without the unwind info in the vdso will sooner or later break.
Then whatever other libc is out there has to get vdso support to be able
to function correctly.

-- 
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖

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