scripts/tags.sh

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