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tags and cscope support really belongs in a shell script
as they do not benefit from the make functionality. Moving the support to a shell script has several benefits: - The readability of the code has increased a lot - More people is able to extend the tags support - We see less changes to the top-level Makefile The shell script version includes improvements from: Alexey Dobriyan <adobriyan@gmail.com> (jump to kconfig symbols) Alexey Dobriyan <adobriyan@gmail.com> (drop ./ in paths) Ian Campbell <ijc@hellion.org.uk> (simplified find algorithms) This version has a few caveats: => It does not support ALLSOURCE_ARCHS - it is easy to add if it is really used => It assumes all archs have moved to arch/$ARCH/include - until that happens we have a few additional hits in the archs Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Tested-by: Ian Campbell <ijc@hellion.org.uk>
This commit is contained in:
Sam Ravnborg
parent
f6682f9157
commit
a680eedc6c
117
Makefile
117
Makefile
@ -1409,123 +1409,12 @@ endif # KBUILD_EXTMOD
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# Generate tags for editors
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# ---------------------------------------------------------------------------
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quiet_cmd_tags = GEN $@
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cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@
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#We want __srctree to totally vanish out when KBUILD_OUTPUT is not set
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#(which is the most common case IMHO) to avoid unneeded clutter in the big tags file.
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#Adding $(srctree) adds about 20M on i386 to the size of the output file!
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ifeq ($(src),$(obj))
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__srctree =
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else
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__srctree = $(srctree)/
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endif
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ifeq ($(ALLSOURCE_ARCHS),)
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ifeq ($(ARCH),um)
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ALLINCLUDE_ARCHS := $(ARCH) $(SUBARCH)
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else
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ALLINCLUDE_ARCHS := $(SRCARCH)
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endif
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else
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#Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behaviour.
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ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS)
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endif
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ALLSOURCE_ARCHS := $(SRCARCH)
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define find-sources
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( for arch in $(ALLSOURCE_ARCHS) ; do \
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find $(__srctree)arch/$${arch} $(RCS_FIND_IGNORE) \
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-wholename $(__srctree)arch/$${arch}/include/asm -type d -prune \
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-o -name $1 -print; \
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done ; \
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find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \
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-name $1 -print; \
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find $(__srctree)include $(RCS_FIND_IGNORE) \
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\( -name config -o -name 'asm-*' \) -prune \
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-o -name $1 -print; \
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for arch in $(ALLINCLUDE_ARCHS) ; do \
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test -e $(__srctree)include/asm-$${arch} && \
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find $(__srctree)include/asm-$${arch} $(RCS_FIND_IGNORE) \
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-name $1 -print; \
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test -e $(__srctree)arch/$${arch}/include/asm && \
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find $(__srctree)arch/$${arch}/include/asm $(RCS_FIND_IGNORE) \
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-name $1 -print; \
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done ; \
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find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \
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-name $1 -print; \
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find $(__srctree) $(RCS_FIND_IGNORE) \
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\( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
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-name $1 -print; \
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)
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endef
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define all-sources
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$(call find-sources,'*.[chS]')
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endef
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define all-kconfigs
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$(call find-sources,'Kconfig*')
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endef
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define all-defconfigs
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$(call find-sources,'defconfig')
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endef
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define xtags
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if $1 --version 2>&1 | grep -iq exuberant; then \
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$(all-sources) | xargs $1 -a \
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-I __initdata,__exitdata,__acquires,__releases \
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-I __read_mostly,____cacheline_aligned,____cacheline_aligned_in_smp,____cacheline_internodealigned_in_smp \
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-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
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--extra=+f --c-kinds=+px \
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--regex-asm='/^ENTRY\(([^)]*)\).*/\1/'; \
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$(all-kconfigs) | xargs $1 -a \
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--langdef=kconfig \
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--language-force=kconfig \
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--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'; \
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$(all-defconfigs) | xargs -r $1 -a \
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--langdef=dotconfig \
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--language-force=dotconfig \
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--regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'; \
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elif $1 --version 2>&1 | grep -iq emacs; then \
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$(all-sources) | xargs $1 -a; \
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$(all-kconfigs) | xargs $1 -a \
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--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'; \
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$(all-defconfigs) | xargs -r $1 -a \
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--regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'; \
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else \
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$(all-sources) | xargs $1 -a; \
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fi
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endef
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quiet_cmd_cscope-file = FILELST cscope.files
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cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files
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quiet_cmd_cscope = MAKE cscope.out
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cmd_cscope = cscope -b -f cscope.out
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cscope: FORCE
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$(call cmd,cscope-file)
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$(call cmd,cscope)
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quiet_cmd_TAGS = MAKE $@
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define cmd_TAGS
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rm -f $@; \
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$(call xtags,etags)
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endef
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TAGS: FORCE
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$(call cmd,TAGS)
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quiet_cmd_tags = MAKE $@
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define cmd_tags
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rm -f $@; \
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$(call xtags,ctags)
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endef
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tags: FORCE
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tags TAGS cscope: FORCE
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$(call cmd,tags)
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# Scripts to check various things for consistency
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# ---------------------------------------------------------------------------
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160
scripts/tags.sh
Executable file
160
scripts/tags.sh
Executable file
@ -0,0 +1,160 @@
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#!/bin/sh
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# Generate tags or cscope files
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# Usage tags.sh <mode>
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#
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# mode may be any of: tags, TAGS, cscope
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#
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# Uses the following environment variables:
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# ARCH, SUBARCH, srctree, src, obj
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if [ $KBUILD_VERBOSE == 1 ]; then
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set -x
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fi
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# This is a duplicate of RCS_FIND_IGNORE without escaped '()'
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ignore="( -name SCCS -o -name BitKeeper -o -name .svn -o \
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-name CVS -o -name .pc -o -name .hg -o \
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-name .git ) \
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-prune -o"
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# Do not use full path is we do not use O=.. builds
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if [ ${src} == ${obj} ]; then
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tree=
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else
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tree=${srctree}
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fi
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# find sources in arch/$ARCH
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find_arch_sources()
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{
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find ${tree}arch/$1 $ignore -name $2 -print;
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}
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# find sources in arch/$1/include
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find_arch_include_sources()
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{
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find ${tree}arch/$1/include $ignore -name $2 -print;
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}
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# find sources in include/
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find_include_sources()
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{
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find ${tree}include $ignore -name config -prune -o -name $1 -print;
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}
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# find sources in rest of tree
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# we could benefit from a list of dirs to search in here
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find_other_sources()
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{
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find ${tree}* $ignore \
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\( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
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-name $1 -print;
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}
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find_sources()
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{
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find_arch_sources $1 $2
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find_include_sources $2
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find_other_sources $2
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}
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all_sources()
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{
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find_sources $SRCARCH *.[chS]
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if [ ! -z "$archinclude" ]; then
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find_arch_include_sources $archinclude *.[chS]
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fi
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}
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all_kconfigs()
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{
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find_sources $SRCARCH "Kconfig*"
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}
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all_defconfigs()
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{
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find_sources $SRCARCH "defconfig"
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}
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docscope()
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{
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(echo \-k; echo \-q; all_sources) > cscope.files
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cscope -b -f cscope.out
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}
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exuberant()
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{
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all_sources > all
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all_sources | xargs $1 -a \
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-I __initdata,__exitdata,__acquires,__releases \
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-I __read_mostly,____cacheline_aligned \
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-I ____cacheline_aligned_in_smp \
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-I ____cacheline_internodealigned_in_smp \
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-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
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--extra=+f --c-kinds=+px \
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--regex-asm='/^ENTRY\(([^)]*)\).*/\1/'
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all_kconfigs | xargs $1 -a \
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--langdef=kconfig --language-force=kconfig \
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--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'
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all_kconfigs | xargs $1 -a \
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--langdef=kconfig --language-force=kconfig \
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--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'
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all_defconfigs | xargs -r $1 -a \
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--langdef=dotconfig --language-force=dotconfig \
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--regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
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}
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emacs()
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{
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all_sources | xargs $1 -a
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all_kconfigs | xargs $1 -a \
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--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
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all_kconfigs | xargs $1 -a \
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--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'
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all_defconfigs | xargs -r $1 -a \
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--regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
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}
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xtags()
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{
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if $1 --version 2>&1 | grep -iq exuberant; then
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exuberant $1
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elif $1 --version 2>&1 | grep -iq emacs; then
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emacs $1
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else
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all_sources | xargs $1 -a
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fi
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}
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# Support um (which uses SUBARCH)
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if [ ${ARCH} == um ]; then
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if [ $SUBARCH == i386 ]; then
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archinclude=x86
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elif [ $SUBARCH == x86_64 ]; then
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archinclude=x86
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else
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archinclude=${SUBARCH}
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fi
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fi
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case "$1" in
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"cscope")
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docscope
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;;
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"tags")
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xtags ctags
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;;
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"TAGS")
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xtags etags
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;;
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esac
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