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bug#31946: 27.0.50; The NSM should warn about more TLS problems


From: Andy Moreton
Subject: bug#31946: 27.0.50; The NSM should warn about more TLS problems
Date: Tue, 27 Aug 2019 16:25:58 +0100
User-agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0

On 27/08/2019 8:23 am, Eli Zaretskii wrote:
From: Andy Moreton <address@hidden>
Date: Mon, 26 Aug 2019 23:56:06 +0100

> Looks like something is wrong with how I'm using gnutls_free when it
> comes from the DLL.  I need to look into that.

Found it I think. gnutls_free is a pointer of type gnutls_free_function,
so the value returned from GetProcAddress is a data pointer, not a
function address. Something like the following patch appears to work
i.e. no longer crashes with the recipe above.

Yes, thanks.  I was struggling with the same thing, but evidently
there's a limit to what I can do after 11PM at my age ;-)

If this is the right fix then we will need to add e.g. DEF_DLL_DATA and
LOAD_DLL_DATA macros for runtime import of data (and an equivalent to
get_proc_addr to use the right types for runtime data imports).

I think there's no need to invent harness for a single user, we can
simply do that by hand.  Please try the patch below, it's against the
current master (it also removes the unnecessary intermediate buffer
allocation while at that).

Your patch works (tested with package-list and gnus) - please install.

Thanks,

   AndyM





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