1#!/bin/sh 2# Generate tags or cscope files 3# Usage tags.sh <mode> 4# 5# mode may be any of: tags, TAGS, cscope 6# 7# Uses the following environment variables: 8# ARCH, SUBARCH, SRCARCH, srctree, src, obj 9 10if [ "$KBUILD_VERBOSE" = "1" ]; then 11 set -x 12fi 13 14# This is a duplicate of RCS_FIND_IGNORE without escaped '()' 15ignore="( -name SCCS -o -name BitKeeper -o -name .svn -o \ 16 -name CVS -o -name .pc -o -name .hg -o \ 17 -name .git ) \ 18 -prune -o" 19 20# Do not use full path if we do not use O=.. builds 21# Use make O=. {tags|cscope} 22# to force full paths for a non-O= build 23if [ "${KBUILD_SRC}" = "" ]; then 24 tree= 25else 26 tree=${srctree}/ 27fi 28 29# Find all available archs 30find_all_archs() 31{ 32 ALLSOURCE_ARCHS="" 33 for arch in `ls ${tree}arch`; do 34 ALLSOURCE_ARCHS="${ALLSOURCE_ARCHS} "${arch##\/} 35 done 36} 37 38# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH 39if [ "${ALLSOURCE_ARCHS}" = "" ]; then 40 ALLSOURCE_ARCHS=${SRCARCH} 41elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then 42 find_all_archs 43fi 44 45# find sources in arch/$ARCH 46find_arch_sources() 47{ 48 for i in $archincludedir; do 49 prune="$prune -wholename $i -prune -o" 50 done 51 find ${tree}arch/$1 $ignore $prune -name "$2" -print; 52} 53 54# find sources in arch/$1/include 55find_arch_include_sources() 56{ 57 include=$(find ${tree}arch/$1/ -name include -type d); 58 if [ -n "$include" ]; then 59 archincludedir="$archincludedir $include" 60 find $include $ignore -name "$2" -print; 61 fi 62} 63 64# find sources in include/ 65find_include_sources() 66{ 67 find ${tree}include $ignore -name config -prune -o -name "$1" -print; 68} 69 70# find sources in rest of tree 71# we could benefit from a list of dirs to search in here 72find_other_sources() 73{ 74 find ${tree}* $ignore \ 75 \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \ 76 -name "$1" -print; 77} 78 79find_sources() 80{ 81 find_arch_sources $1 "$2" 82} 83 84all_sources() 85{ 86 find_arch_include_sources ${SRCARCH} '*.[chS]' 87 if [ ! -z "$archinclude" ]; then 88 find_arch_include_sources $archinclude '*.[chS]' 89 fi 90 find_include_sources '*.[chS]' 91 for arch in $ALLSOURCE_ARCHS 92 do 93 find_sources $arch '*.[chS]' 94 done 95 find_other_sources '*.[chS]' 96} 97 98all_kconfigs() 99{ 100 for arch in $ALLSOURCE_ARCHS; do 101 find_sources $arch 'Kconfig*' 102 done 103 find_other_sources 'Kconfig*' 104} 105 106all_defconfigs() 107{ 108 find_sources $ALLSOURCE_ARCHS "defconfig" 109} 110 111docscope() 112{ 113 (echo \-k; echo \-q; all_sources) > cscope.files 114 cscope -b -f cscope.out 115} 116 117exuberant() 118{ 119 all_sources | xargs $1 -a \ 120 -I __initdata,__exitdata,__acquires,__releases \ 121 -I __read_mostly,____cacheline_aligned \ 122 -I ____cacheline_aligned_in_smp \ 123 -I ____cacheline_internodealigned_in_smp \ 124 -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \ 125 -I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \ 126 --extra=+f --c-kinds=-px \ 127 --regex-asm='/^ENTRY\(([^)]*)\).*/\1/' \ 128 --regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\1/' 129 130 all_kconfigs | xargs $1 -a \ 131 --langdef=kconfig --language-force=kconfig \ 132 --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/' 133 134 all_kconfigs | xargs $1 -a \ 135 --langdef=kconfig --language-force=kconfig \ 136 --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/' 137 138 all_defconfigs | xargs -r $1 -a \ 139 --langdef=dotconfig --language-force=dotconfig \ 140 --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/' 141 142} 143 144emacs() 145{ 146 all_sources | xargs $1 -a \ 147 --regex='/^ENTRY(\([^)]*\)).*/\1/' \ 148 --regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/' 149 150 all_kconfigs | xargs $1 -a \ 151 --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/' 152 153 all_kconfigs | xargs $1 -a \ 154 --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/' 155 156 all_defconfigs | xargs -r $1 -a \ 157 --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/' 158} 159 160xtags() 161{ 162 if $1 --version 2>&1 | grep -iq exuberant; then 163 exuberant $1 164 elif $1 --version 2>&1 | grep -iq emacs; then 165 emacs $1 166 else 167 all_sources | xargs $1 -a 168 fi 169} 170 171 172# Support um (which uses SUBARCH) 173if [ "${ARCH}" = "um" ]; then 174 if [ "$SUBARCH" = "i386" ]; then 175 archinclude=x86 176 elif [ "$SUBARCH" = "x86_64" ]; then 177 archinclude=x86 178 else 179 archinclude=${SUBARCH} 180 fi 181fi 182 183case "$1" in 184 "cscope") 185 docscope 186 ;; 187 188 "tags") 189 rm -f tags 190 xtags ctags 191 ;; 192 193 "TAGS") 194 rm -f TAGS 195 xtags etags 196 ;; 197esac 198