Commit e838db68 authored by Masatake YAMATO's avatar Masatake YAMATO Committed by Sam Ravnborg
Browse files

kbuild: adding symbols in Kconfig and defconfig to TAGS 



I'm using TAGS generated from "make TAGS" to read the kernel source code.

When I met a ifdef block

	  #ifdef CONFIG_FOO
	  	 ...
	  #endif

in the soruce code I would like to know the meaning CONFIG_FOO
to decide whether I should read inside the ifdef block
or not. meaning CONFIG_FOO is well documented in Kconfig.
So it is nice if I can jump to CONFIG_FOO entry in Kconfig
from "#ifdef CONFIG_FOO" with the tag jump.

Here is the patch to add symbols in Kconfig and defconfig to TAGS
in "make TAGS" operation.

Signed-off-by: default avatarMasatake YAMATO <jet@gyve.org>
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent 6803dc0e

Makefile

+25 −9
Original line number Diff line number Diff line
@@ -1192,25 +1192,35 @@ endif 


ALLSOURCE_ARCHS := $(ARCH)



define all-sources

define find-sources

        ( find $(__srctree) $(RCS_FIND_IGNORE) \

	       \( -name include -o -name arch \) -prune -o \

	       -name '*.[chS]' -print; \

	       -name $1 -print; \

	  for ARCH in $(ALLSOURCE_ARCHS) ; do \

	       find $(__srctree)arch/$${ARCH} $(RCS_FIND_IGNORE) \

	            -name '*.[chS]' -print; \

	            -name $1 -print; \

	  done ; \

	  find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \

	       -name '*.[chS]' -print; \

	       -name $1 -print; \

	  find $(__srctree)include $(RCS_FIND_IGNORE) \

	       \( -name config -o -name 'asm-*' \) -prune \

	       -o -name '*.[chS]' -print; \

	       -o -name $1 -print; \

	  for ARCH in $(ALLINCLUDE_ARCHS) ; do \

	       find $(__srctree)include/asm-$${ARCH} $(RCS_FIND_IGNORE) \

	            -name '*.[chS]' -print; \

	            -name $1 -print; \

	  done ; \

	  find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \

	       -name '*.[chS]' -print )

	       -name $1 -print )

endef



define all-sources

	$(call find-sources,'*.[chS]')

endef

define all-kconfigs

	$(call find-sources,'Kconfig*')

endef

define all-defconfigs

	$(call find-sources,'defconfig')

endef



quiet_cmd_cscope-file = FILELST cscope.files
@@ -1230,7 +1240,13 @@ define cmd_TAGS 
                echo "-I __initdata,__exitdata,__acquires,__releases  \

                      -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL              \

                      --extra=+f --c-kinds=+px"`;                     \

                $(all-sources) | xargs etags $$ETAGSF -a

                $(all-sources) | xargs etags $$ETAGSF -a;             \

	if test "x$$ETAGSF" = x; then                                 \

		$(all-kconfigs) | xargs etags -a                      \

		--regex='/^config[ \t]+\([a-zA-Z0-9_]+\)/\1/';        \

		$(all-defconfigs) | xargs etags -a                    \

		--regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/';     \

	fi

endef



TAGS: FORCE

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