This commit upgrades Github Actions workers to ubuntu-22.04
As part of that change, we (currently) no longer need the backports
nor toolchain-r/test PPAs, because ubuntu-22.04 include
recent-enough version of QEMU and gcc
This shouldn't cause any breaking changes, so a toolchain rebuild is not
required.
As per Hendiadyoin's request, math errno is disabled by default, which
should enable some extra compiler optimizations in LibGL and LibSoftGPU
code that uses math functions heavily.
Co-Authored-By: Ali Mohammad Pur <mpfard@serenityos.org>
The LLVM patch has been broken up into smaller commits and moved to a
separate directory. CI should look at this new location to determine if
the toolchain needs to be rebuilt.
This rule seems to be confused about basic syntax of C++.
It flags with false positives such as:
```
The object was created but it is not being used. If you wish
to call constructor, 'this->set_y::set_y(....)' should be used.
```
Lets suppress it until it can be fixed.
This rule appears to be fundamentally broken for our code base, it
flags `void` functions all over the place, as well as constructors.
Lets suppress it for now.
Now that clang-format-14 ubuntu packages are available, it's time to
finally upgrade our clang-format version. This version brings with it
a bunch of useful features with const-placement being the most notable.
These will be enabled in the following commits.
This rule attempts to flag invisible Unicode characters which would
potentially be used by an attacker to hide code that humans can't see.
https://pvs-studio.com/en/docs/warnings/v1076/
AKA the "Trojan Source" attack: https://arxiv.org/abs/2111.00169
Unfortunately our `LibUnicode` source code contains these hidden
characters as they are part of the Unicode character set that the
library exposes. So we have, and will always have 100s of false
positives.
This rule appears to produce a lot of noise, most of them look like
false positives (400+). Lets suppress for now to try to move the signal
to noise ratio higher for PVS-Studio.
Reference: https://pvs-studio.com/en/docs/warnings/v1047/
Much like the sonar cloud workflow, this workflow runs pvs-studio
static analysis, and uploads the SARIF results to github. This
is the most "convenient" way to publish results, but unfortunately
users need write access to the repository to reach static analysis
results rendered in github.
As a work around folks can just look at the logs where issues are
printed during analysis, this works reasonably well.
In the future it might make sense to also render the results as HTML
and publish them using github page, much like we do with man pages.
I believe the pvs-studio plog-converter tool supports that as well.
https://pvs-studio.com/en/docs/manual/0036/
