Re: [PATCH v3] contrib/plugins: Add a plugin to generate basic block vectors

["Alex Bennée" <alex.bennee@linaro.org>]

Akihiko Odaki <akihiko.odaki@daynix.com> writes:

> SimPoint is a widely used tool to find the ideal microarchitecture
> simulation points so Valgrind[2] and Pin[3] support generating basic
> block vectors for use with them. Let's add a corresponding plugin to
> QEMU too.
>
> Note that this plugin has a different goal with tests/plugin/bb.c.
>
> This plugin creates a vector for each constant interval instead of
> counting the execution of basic blocks for the entire run and able to
> describe the change of execution behavior. Its output is also
> syntactically simple and better suited for parsing, while the output of
> tests/plugin/bb.c is more human-readable.
>
> [1] https://cseweb.ucsd.edu/~calder/simpoint/
> [2] https://valgrind.org/docs/manual/bbv-manual.html
> [3] https://www.intel.com/content/www/us/en/developer/articles/tool/pin-a-dynamic-binary-instrumentation-tool.html
>
> Signed-off-by: Yotaro Nada <yotaro.nada@gmail.com>
> Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>

Queued to plugins/next, thanks.

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro