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