[aur-general] algoscore

Philipp Überbacher hollunder at lavabit.com
Wed Aug 25 14:26:21 EDT 2010

Excerpts from Christopher Brannon's message of 2010-08-25 20:12:38 +0200:
> Philipp Überbacher <hollunder at lavabit.com> writes:
> > As it happens, this article about algoscore says that it does require
> > either -O2 or -O3 as CFLAGS:
> > http://www.linuxjournal.com/content/algoscore-music-numbers
> Sorry, but this doesn't seem plausible.
> I did get some useful output from valgrind.
> The invalid reads and writes are happening in src/nasal/hash.c, at line
> 132, in the resize function.  The malloc call in that function doesn't
> seem to be allocating enough memory.  The author is aligning his
> pointers, and the malloc call doesn't account for the padding.
> I added a fudge factor to malloc's size argument.
> The patch is here: <http://pastebin.ca/1925235>.
> Unfortunately, I can't do much to test this program, but I can say that
> it no longer crashes with a backtrace.
> -- Chris

The strange thing here is that it didn't crash when it was built from
ROX-filer, which I believe just executes AppRun, a simple shell script
to compile algoscore.

One thing that causes it to crash here is 'csound_test.as' in the
examples folder. The midi_test.as example works fine though.

"Wir stehen selbst enttäuscht und sehn betroffen / Den Vorhang zu
und alle Fragen offen." Bertolt Brecht, Der gute Mensch von Sezuan

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