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From Dirk-Willem van Gulik <>
Subject Re: Purify/Insure++ (fwd)
Date Thu, 15 Jan 1998 10:45:58 GMT

Does anyone have experience with it; I cannot get it
to work on BSD.


---------- Forwarded message ----------
Date: Wed, 14 Jan 1998 09:54:55 -0600
From: Dan Nelson <>
To: "Jordan K. Hubbard" <>
Cc: hackers@FreeBSD.ORG, The Hermit Hacker <>
Subject: Re: Purify/Insure++

In the last episode (Jan 13), Jordan K. Hubbard said:
> > 	I guess this begs the question as to what they would consider a
> > large enough market in order to do the port?  Same for pretty much
> > any commercial port, how many ppl would have to commit to
> > purchasing a copy to make it viable for them?
> In other words, "Forget it."  If we want Insure or Purify in the free
> software world, we're going to have to do our own versions and hope
> that there aren't too many software patents on the process.

Not sure if this is in the same area of "debugging" tools or in a
different niche, but I've had good results with the bounds-checking gcc
patch to 2.7.2.  It slows down your program quite a bit when enabled,
but does range and type checking on every variable, pointer, and array
in your code.   Makes finding buffer-overflow bugs a no-brainer.

The code is for 2.7.2, but should build on with minimal
patching.  Wonder if the egcc people are thinking about a
bounds-checking patch; would be a nice addition.

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