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CONFIG_GCC_PLUGIN_CYC_COMPLEXITY: Compute the cyclomatic complexity of a function

General informations

The Linux kernel configuration item CONFIG_GCC_PLUGIN_CYC_COMPLEXITY:

Help text

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).

Enabling this plugin reports the complexity to stderr during the build. It mainly serves as a simple example of how to create a gcc plugin for the kernel.

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