[cfe-dev] [RFC] automatic variable initialization

[Kostya Serebryany via cfe-dev]

On Tue, Nov 27, 2018 at 10:43 AM Sean McBride <sean at rogue-research.com>
wrote:

> On Tue, 27 Nov 2018 10:19:03 -0800, Kostya Serebryany via cfe-dev said:
>
> >One more data point: among the bugs found by MSAN in Chrome over the past
> >few years 449 were uninitialized heap and 295 were uninitialized stack.
> >So, the proposed functionality would prevent ~40% (i.e. quite a bit!) of
> >all UUMs in software like Chrome.
>
> I just lurk here, but I think the proposed functionality would be greatly
> appreciated by C/C++/Obj-C developers on macOS, where MemorySanitizer is
> not supported and valgrind can't even launch TextEdit.  If I'm not
> mistaken, it would be the *only* tool on macOS to catch UUMs.
>

It won't catch anything -- but it will prevent the stack UUMs from hurting
you in production.


>
> Cheers,
>
> Sean
>
>
>
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