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Date: | Wed, 13 Nov 2002 23:31:53 -0500 |
From: | Christopher Faylor <cgf AT redhat DOT com> |
To: | cygwin-developers AT cygwin DOT com |
Subject: | Re: dll_list::detach() can stackdump |
Message-ID: | <20021114043153.GA8734@redhat.com> |
Reply-To: | cygwin-developers AT cygwin DOT com |
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References: | <20021107171831 DOT GA1752 AT tishler DOT net> <20021112145848 DOT GF792 AT tishler DOT net> |
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In-Reply-To: | <20021112145848.GF792@tishler.net> |
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On Tue, Nov 12, 2002 at 09:58:48AM -0500, Jason Tishler wrote: >Although, the following patch: > > http://cygwin.com/ml/cygwin-patches/2002-q4/msg00103.html > >fixes the problem for newly built DLLs, it does not (and cannot) correct >old (i.e., previously built) DLLs. > >What is the best way to solve this issue? Should dll_list::detach() be >changed to call IsBadReadPtr() to prevent stackdumps? I think I have rewritten dll_list::detach to avoid the reliance on a passed-in pointer so that the above patch is no longer necessary. I tried it with a simple test case and it seemed to work ok. I didn't try it with a fork() case, though. Can you confirm that this fixes your problem? Thanks for tracking this down so thoroughly, btw. cgf
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