From: Ullrich von Bassewitz (uz_at_musoftware.de)
Date: 2003-01-02 22:11:48
Hi!
On Thu, Jan 02, 2003 at 01:00:05AM -0500, Tim Vanderhoek wrote:
> I ran into some trouble with the cc65 compiler trying to access memory
> that had already been free()'d.
[...]
> This problem causes cc65 to crash while compiling libsrc in any
> environment where free() by default trashes memory that is freed.
Thanks a lot for reporting this bug! Older code in the optimizer modules mixes
the creation of replacement code and deletions of old code. After a few bad
experiences, I switched to a new strategy, doing all additions first and then
all deletes. I will rewrite the OptPtrStore stuff using the latter method once
I have some more time.
Just out of curiosity: How did you notice this bug? I think it is in the code
for several versions now and did also survive tests using the Valgrind memory
debugger.
Regards
Uz
--
Ullrich von Bassewitz uz_at_musoftware.de
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