[Vm-dev] Cannot build successfully latest VM

[Nicolas Cellier]

Hi Clement,
I let a comment on line 1972 of src/plugins/BitBltPlugin/BitBltPlugin.c
<https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/1dd1a9c0d61ed1c367fb226e59ce0386af3bf5ed#diff-e013b6766a05037812d48960702c0910>
on commit
https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/1dd1a9c0d61ed1c367fb226e59ce0386af3bf5ed

and another one in
https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/4ff34235c24ea2fd690287f96a73834e744ad6c9

The problem is that a local variable unskew was generated as unsigned int
instead of int in BitBlt, but we then test if unskew < 0 which is obviously
going to be eliminated as dead code...

I did not try to compile the VM, but I'm pretty sure this is related.

2017-11-23 17:00 GMT+01:00 Clément Bera <bera.clement at gmail.com>:

>
> Hi,
>
> The latest VM that I build from open-smalltalk VM 2278 or 2280 does not
> work (Stack overflow at start-up OR bugged UI with strange color making any
> text impossible to read).
>
> I have the problem on 2 different computers, Mac OS X and Linux.
>
> I am able to build successfully the VM from 2274 but I can do it only with
> a previous version of the platform files (else I got a linking error -
> scavengeLog: used but not implemented).
>
> I am not sure the problem comes from the recent platform files or the
> recent changes in the VMMaker packages since they need each other to be
> able to be compiled.
>
> What is the right way to work around this problem ?
>
> I am about to commit on VMMaker package Sista update but I cannot merge
> with 2280 since I can't compile a working VM from there, so I'll commit
> without merging if I cannot solve this problem
>
> Thanks,
>
> --
> Clément Béra
> https://clementbera.wordpress.com/
>
>
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