[Vm-dev] gcc -Wall -pedantic (was: sweep failed to find exact end of memory)

[David T. Lewis]

On Sat, Mar 17, 2007 at 02:54:52PM -0700, Andreas Raab wrote:
> 
> David T. Lewis wrote:
> >Actually, I would not mind putting some time into this if there
> >was a way to organize the work such that any changes I identified
> >could be properly vetted. 
> 
> If you can keep the changes in reasonably small chunks, I think this 
> would be doable. Just try to avoid the one-size-fixes-all approach of 
> throwing several hundred changed methods at a single point in time.

Agreed.

> >I recently came up with a way to browse
> >generated C and inlined C code in Squeak (*), which makes the
> >problem seem considerably less intimidating. I've also done the
> >64 bit updates for some plugins (OSPP et al), so I have a passing
> >familiarity with the issues.
> 
> I doubt that looking at the generated code will help much in general 
> unless you can find a way to run gcc over these methods and have it show 
> us directly the things it doesn't like. As a matter of fact, I think a 
> non-inlined VM would be a much better starting point since it will only 
> report each problem once and not every time it trips over an inlined 
> variant.

Agreed. Although I do like being able to inspect the generated C code
with or without inlining immediately after making a change. Perhaps
it's just because the computer I normally use is rather slow, and I
like having some immediate feedback.

Dave