Re: lib/crypto/chacha.c:65:1: warning: the frame size of 1604 bytes is larger than 1024 bytes

[Herbert Xu]

On Thu, Aug 27, 2020 at 10:10:19AM +0200, Ard Biesheuvel wrote:
>
> Is it really worth it to obsess about this? Special compiler
> instrumentation simply leads to a larger stack footprint in many
> cases, which is why we use a larger stack to begin with (at least we
> do so for Kasan, so if we don't for Ubsan, we should consider it)

Perhaps the stack frame warning should be disabled if both GCOV and
UBSAN are on.

> Past experience also shows that this is highly dependent on the exact
> compiler version, so issues like these are often moving targets.

Interestingly this particular file fails with those options on
gcc 8, 9 and 10.

Cheers,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
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