mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
![Stefani Seibold](/assets/img/avatar_default.png)
The tag file generated by the tags.sh script has some issue. First: The identifier-list miss the DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL special handling, which can result in a wrong tag, not to jump to the right variable definition or function implementation. Second: It makes no real sense to include function prototypes and external and forward variable declarations, because jumping to a tag will sometimes go to this and not to the real definition and implementation. The information about the declaration is still there at the definition and implementation place. So this patch make it lot easier to navigate through the kernel source tree using vi. Signed-off-by: Stefani Seibold <stefani@seibold.net> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
176 lines
4.1 KiB
Bash
Executable file
176 lines
4.1 KiB
Bash
Executable file
#!/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 [ "$KBUILD_VERBOSE" = "1" ]; then
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set -x
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fi
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# This is a duplicate of RCS_FIND_IGNORE without escaped '()'
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ignore="( -name SCCS -o -name BitKeeper -o -name .svn -o \
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-name CVS -o -name .pc -o -name .hg -o \
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-name .git ) \
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-prune -o"
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# Do not use full path is we do not use O=.. builds
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if [ "${KBUILD_SRC}" = "" ]; then
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tree=
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else
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tree=${srctree}/
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fi
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# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
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if [ "${ALLSOURCE_ARCHS}" = "" ]; then
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ALLSOURCE_ARCHS=${SRCARCH}
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fi
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# find sources in arch/$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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}
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all_sources()
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{
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for arch in $ALLSOURCE_ARCHS
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do
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find_sources $arch '*.[chS]'
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done
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if [ ! -z "$archinclude" ]; then
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find_arch_include_sources $archinclude '*.[chS]'
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fi
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find_include_sources '*.[chS]'
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find_other_sources '*.[chS]'
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}
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all_kconfigs()
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{
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for arch in $ALLSOURCE_ARCHS; do
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find_sources $arch 'Kconfig*'
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done
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find_other_sources 'Kconfig*'
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}
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all_defconfigs()
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{
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find_sources $ALLSOURCE_ARCHS "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 | 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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-I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
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--extra=+f --c-kinds=-px \
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--regex-asm='/^ENTRY\(([^)]*)\).*/\1/' \
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--regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\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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--regex='/^ENTRY(\([^)]*\)).*/\1/' \
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--regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/'
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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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rm -f tags
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xtags ctags
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;;
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"TAGS")
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rm -f TAGS
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xtags etags
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;;
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esac
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