Re: [kernel-hardening] [PATCH v8 3/4] Add Cyclomatic complexity GCC plugin

[Andrew Donnellan]

On 13/05/16 09:58, Emese Revfy wrote:
> Add a very simple plugin to demonstrate the GCC plugin infrastructure. This GCC
> plugin computes the cyclomatic complexity of each function.

...

> +config GCC_PLUGIN_CYC_COMPLEXITY
> +	bool "Compute the cyclomatic complexity of a function"
> +	depends on GCC_PLUGINS
> +	help
> +	  The complexity M of a function's control flow graph is defined as:
> +	   M = E - N + 2P
> +	  where
> +
> +	  E = the number of edges
> +	  N = the number of nodes
> +	  P = the number of connected components (exit nodes).
> +

If this plugin is intended primarily as a demonstration it's probably 
worth mentioning this in the Kconfig description.

--
Andrew Donnellan              OzLabs, ADL Canberra
andrew.donnellan@xxxxxxxxxxx  IBM Australia Limited