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Date: Fri, 16 Mar 2007 11:35:47 -0500
From: Charles Wilson <news@cwilson.no.fastmail.spam.com>
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Subject: Re: mdemo ltdl failure
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Dave Korn wrote:

>> What's odd is that this bug in argz_insert() is very ticklish: it
>> triggers on "tests/mdemo/Makefile", but not when argz_insert is called
>> with "./tests/mdemo/Makefile".
> 
>   Isn't that just exactly what you would expect, given that you're talking
> about sorting things in ascii order?  The period collates very early in ascii
> sort order, whereas a lower-case t comes much later; hence if you specify the
> '.' you get the makefile at the start of the list instead of the end.

Ah, but in the ./ case, the sequence is:

"./tests/mdemo/config", NULL
"./tests/mdemo/foo1", NULL
"./tests/mdemo/foo2", NULL
"./tests/mdemo/libfoo2", NULL
"./tests/mdemo/libmlib", NULL
"./tests/mdemo/libsub", NULL
"./tests/mdemo/libtool", NULL
"./tests/mdemo/main", NULL
"./tests/mdemo/Makefile", == *pargz

So again, the sort order is exactly the same: everything gets 
argz_append()ed, until entry=="<stuff>/Makefile" comes along, which 
needs to be argz_insert()ed.

>> I need to verify this using a debug-built cygwin kernel, but it looks
>> like within newlib's argz_insert(), the call to realloc() is not
>> operating correctly in this instance.
> 
>   Sounds like it should be quite easy to PPAST then.

Not really.  I remembered the business with the detached .dbg info, so 
I'm trying to use that (without success -- more in a separate thread).

--
Chuck


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