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Commit 0f836e5f authored by David Woodhouse's avatar David Woodhouse Committed by Linus Torvalds
Browse files

[PATCH] Add CONFIG_HEADERS_CHECK option to automatically run 'make headers_check' 



In order to encourage people to notice when they break the exported
headers, add a config option which automatically runs the sanity checks
when building vmlinux.  That way, those who use allyesconfig will notice
failures.

Signed-off-by: default avatarDavid Woodhouse <dwmw2@infradead.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent c21be1c9

Makefile

+3 −0
Original line number Diff line number Diff line
@@ -741,6 +741,9 @@ endif # ifdef CONFIG_KALLSYMS 


# vmlinux image - including updated kernel symbols

vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) FORCE

ifdef CONFIG_HEADERS_CHECK

	$(Q)$(MAKE) headers_check

endif

	$(call if_changed_rule,vmlinux__)

	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@

	$(Q)rm -f .old_version

lib/Kconfig.debug

+13 −0
Original line number Diff line number Diff line
@@ -371,6 +371,19 @@ config FORCED_INLINING 
	  become the default in the future, until then this option is there to

	  test gcc for this.



config HEADERS_CHECK

	bool "Run 'make headers_check' when building vmlinux"

	help

	  This option will extract the user-visible kernel headers whenever

	  building the kernel, and will run basic sanity checks on them to

	  ensure that exported files do not attempt to include files which

	  were not exported, etc.



	  If you're making modifications to header files which are

	  relevant for userspace, say 'Y', and check the headers

	  exported to $(INSTALL_HDR_PATH) (usually 'usr/include' in

	  your build tree), to make sure they're suitable.



config RCU_TORTURE_TEST

	tristate "torture tests for RCU"

	depends on DEBUG_KERNEL