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Commit 22d8262c authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'gcc-plugins-v4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux 

Pull gcc plugins updates from Kees Cook:
 "Minor changes to the gcc plugins:

   - add the gcc plugins Makefile to MAINTAINERS to route things
     correctly

   - hide cyc_complexity behind !CONFIG_TEST for the future unhiding of
     plugins generally"

* tag 'gcc-plugins-v4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  gcc-plugins: Adjust Kconfig to avoid cyc_complexity
  MAINTAINERS: add GCC plugins Makefile
parents 52281b38 215e2aa6

MAINTAINERS

+1 −0
Original line number Diff line number Diff line
@@ -5239,6 +5239,7 @@ L: kernel-hardening@lists.openwall.com 
S:	Maintained

F:	scripts/gcc-plugins/

F:	scripts/gcc-plugin.sh

F:	scripts/Makefile.gcc-plugins

F:	Documentation/gcc-plugins.txt



GCOV BASED KERNEL PROFILING

arch/Kconfig

+6 −1
Original line number Diff line number Diff line
@@ -364,8 +364,9 @@ menuconfig GCC_PLUGINS 
	  See Documentation/gcc-plugins.txt for details.



config GCC_PLUGIN_CYC_COMPLEXITY

	bool "Compute the cyclomatic complexity of a function"

	bool "Compute the cyclomatic complexity of a function" if EXPERT

	depends on GCC_PLUGINS

	depends on !COMPILE_TEST

	help

	  The complexity M of a function's control flow graph is defined as:

	   M = E - N + 2P
@@ -375,6 +376,10 @@ config GCC_PLUGIN_CYC_COMPLEXITY 
	  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.



config GCC_PLUGIN_SANCOV

	bool

	depends on GCC_PLUGINS