#!/bin/sh
# Generate tags or cscope files
# Usage tags.sh <mode>
#
# mode may be any of: tags, TAGS, cscope
# Uses the following environment variables:
# ARCH, SUBARCH, srctree, src, obj
if [ "$KBUILD_VERBOSE" = "1" ]; then
set -x
fi
# This is a duplicate of RCS_FIND_IGNORE without escaped '()'
ignore="( -name SCCS -o -name BitKeeper -o -name .svn -o \
-name CVS -o -name .pc -o -name .hg -o \
-name .git ) \
-prune -o"
# Do not use full path is we do not use O=.. builds
if [ "${KBUILD_SRC}" = "" ]; then
tree=
else
tree=${srctree}/
# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
if [ "${ALLSOURCE_ARCHS}" = "" ]; then
ALLSOURCE_ARCHS=${SRCARCH}
# find sources in arch/$ARCH
find_arch_sources()
{
find ${tree}arch/$1 $ignore -name "$2" -print;
}
# find sources in arch/$1/include
find_arch_include_sources()
find ${tree}arch/$1/include $ignore -name "$2" -print;
# find sources in include/
find_include_sources()
find ${tree}include $ignore -name config -prune -o -name "$1" -print;
# find sources in rest of tree
# we could benefit from a list of dirs to search in here
find_other_sources()
find ${tree}* $ignore \
\( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
-name "$1" -print;
find_sources()
find_arch_sources $1 "$2"
all_sources()
for arch in $ALLSOURCE_ARCHS
do
find_sources $arch '*.[chS]'
done
if [ ! -z "$archinclude" ]; then
find_arch_include_sources $archinclude '*.[chS]'
find_include_sources '*.[chS]'
find_other_sources '*.[chS]'
all_kconfigs()
for arch in $ALLSOURCE_ARCHS; do
find_sources $arch 'Kconfig*'
find_other_sources 'Kconfig*'
all_defconfigs()
find_sources $ALLSOURCE_ARCHS "defconfig"
docscope()
(echo \-k; echo \-q; all_sources) > cscope.files
cscope -b -f cscope.out
exuberant()
all_sources | xargs $1 -a \
-I __initdata,__exitdata,__acquires,__releases \
-I __read_mostly,____cacheline_aligned \
-I ____cacheline_aligned_in_smp \
-I ____cacheline_internodealigned_in_smp \
-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
--extra=+f --c-kinds=+px \
--regex-asm='/^ENTRY\(([^)]*)\).*/\1/' \
--regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\1/'
all_kconfigs | xargs $1 -a \
--langdef=kconfig --language-force=kconfig \
--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'
--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'
all_defconfigs | xargs -r $1 -a \
--langdef=dotconfig --language-force=dotconfig \
--regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
emacs()
--regex='/^ENTRY(\([^)]*\)).*/\1/' \
--regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/'
--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'
--regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
xtags()
if $1 --version 2>&1 | grep -iq exuberant; then
exuberant $1
elif $1 --version 2>&1 | grep -iq emacs; then
emacs $1
all_sources | xargs $1 -a
# Support um (which uses SUBARCH)
if [ "${ARCH}" = "um" ]; then
if [ "$SUBARCH" = "i386" ]; then
archinclude=x86
elif [ "$SUBARCH" = "x86_64" ]; then
archinclude=${SUBARCH}
case "$1" in
"cscope")
docscope
;;
"tags")
xtags ctags
"TAGS")
xtags etags
esac