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Date:	Mon, 8 Oct 2007 10:35:53 -0400
From:	Christopher Faylor <cgf-use-the-mailinglist-please AT cygwin DOT com>
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Subject:	Re: [gdb] Data watchpoints in Windows weirdness. Call for testers.
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On Mon, Oct 08, 2007 at 02:43:31PM +0200, Corinna Vinschen wrote:
>On Oct  3 01:47, Pedro Alves wrote:
>> By a long shot, Cygwin doesn't do anything funny like hooking
>> GetThreadContext, does it?
>
>cgf might be better suited to answer this, but AFAICS, Cygwin
>doesn't hook any system function.  It just uses them.

Cygwin doesn't hook GetThreadContext or any other system call.  It does play
with the threads stack frame when the thread is first created however.

>OTOH, there are two calls to SetThreadContext in Cygwin, both of them
>changing Eip.  Could that be a problem?

Those should only be triggered in circumstances where a cygwin program
is interrupted outside of the cygwin dll itself.

cgf

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