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RE: mdemo ltdl failure
From: |
Dave Korn |
Subject: |
RE: mdemo ltdl failure |
Date: |
Fri, 16 Mar 2007 16:11:03 -0000 |
On 16 March 2007 15:35, Charles Wilson wrote:
>>>>> Well, it's failing all the time for me, but I'm not sure it's a >
>>> segfault. What does "Hangup" mean, when reported by the shell after >
>>> executing the app: Good question, I don't know.
It means SIGHUP.
> I've (almost) tracked down the error: it is caused by yet another bug in
> newlib's argz_insert() (or possibly realloc()! ), as called by
> lt_argz_insert:
This thread should probably be on the newlib list then.
> 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.
> 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.
cheers,
DaveK
--
Can't think of a witty .sigline today....