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Date:	Thu, 05 Nov 2009 04:04:47 -0600
From:	"Yaakov (Cygwin/X)" <yselkowitz AT users DOT sourceforge DOT net>
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To:	cygwin AT cygwin DOT com
Subject:	Re: malloc overrides
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On 05/11/2009 03:56, Corinna Vinschen wrote:
> You can replace malloc with your own implementation, but it has to be a
> *working* implementation.  Early in the per-process DLL initialization
> there's a call to free(malloc(16)), which is used to figure out if
> Cygwin's malloc has been overridden with an application-supplied version
> of malloc.  Since your malloc calls exit, this goes down the gutter.  At
> this early stage in initialization, Cygwin can't handle the exit call
> correctly.
>
> Unless we can implement a way to figure out if the application provides
> malloc without actually calling malloc, the above testcases are bound to
> fail.

Thanks for the explanation.  So what are the correct answers to the 
questions the code is trying to answer?


Yaakov

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