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Re: [Libunwind-devel] [PATCH] Enable debug_frame code by default on x86*
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From: |
Chris January |
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Subject: |
Re: [Libunwind-devel] [PATCH] Enable debug_frame code by default on x86* |
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Date: |
Mon, 16 Sep 2013 10:59:15 +0100 |
On Mon, 2013-09-16 at 11:47 +0200, Jean Pihet wrote:
> The dwarf unwinding feature is being used on ARM and supported on
> x86, cf. [1], [2]. Enable it by default on those platforms.
The .debug_frame parsing code uses code that is less async-signal-safe
than the rest of libunwind - which makes it troublesome to use from a
signal handler. I would caution against enabling it by default for that
reason.
Regards,
Chris January - VP Engineering - Allinea Software Ltd.