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=${srctree}/
  25 fi
  26
  27 # find sources in arch/$ARCH
  28 find_arch_sources()
  29 {
  30         find ${tree}arch/$1 $ignore -name "$2" -print;
  31 }
  32
  33 # find sources in arch/$1/include
  34 find_arch_include_sources()
  35 {
  36         find ${tree}arch/$1/include $ignore -name "$2" -print;
  37 }
  38
  39 # find sources in include/
  40 find_include_sources()
  41 {
  42         find ${tree}include $ignore -name config -prune -o -name "$1" -print;
  43 }
  44
  45 # find sources in rest of tree
  46 # we could benefit from a list of dirs to search in here
  47 find_other_sources()
  48 {
  49         find ${tree}* $ignore \
  50              \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
  51                -name "$1" -print;
  52 }
  53
  54 find_sources()
  55 {
  56         find_arch_sources $1 "$2"
  57         find_include_sources "$2"
  58         find_other_sources "$2"
  59 }
  60
  61 all_sources()
  62 {
  63         find_sources $SRCARCH '*.[chS]'
  64         if [ ! -z "$archinclude" ]; then
  65                 find_arch_include_sources $archinclude '*.[chS]'
  66         fi
  67 }
  68
  69 all_kconfigs()
  70 {
  71         find_sources $SRCARCH 'Kconfig*'
  72 }
  73
  74 all_defconfigs()
  75 {
  76         find_sources $SRCARCH "defconfig"
  77 }
  78
  79 docscope()
  80 {
  81         (echo \-k; echo \-q; all_sources) > cscope.files
  82         cscope -b -f cscope.out
  83 }
  84
  85 exuberant()
  86 {
  87         all_sources | xargs $1 -a                               \
  88         -I __initdata,__exitdata,__acquires,__releases          \
  89         -I __read_mostly,____cacheline_aligned                  \
  90         -I ____cacheline_aligned_in_smp                         \
  91         -I ____cacheline_internodealigned_in_smp                \
  92         -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL                      \
  93         --extra=+f --c-kinds=+px                                \
  94         --regex-asm='/^ENTRY\(([^)]*)\).*/\1/'
  95
  96         all_kconfigs | xargs $1 -a                              \
  97         --langdef=kconfig --language-force=kconfig              \
  98         --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'
  99
 100         all_kconfigs | xargs $1 -a                              \
 101         --langdef=kconfig --language-force=kconfig              \
 102         --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'
 103
 104         all_defconfigs | xargs -r $1 -a                         \
 105         --langdef=dotconfig --language-force=dotconfig          \
 106         --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
 107
 108 }
 109
 110 emacs()
 111 {
 112         all_sources | xargs $1 -a
 113
 114         all_kconfigs | xargs $1 -a                              \
 115         --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
 116
 117         all_kconfigs | xargs $1 -a                              \
 118         --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'
 119
 120         all_defconfigs | xargs -r $1 -a                         \
 121         --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
 122 }
 123
 124 xtags()
 125 {
 126         if $1 --version 2>&1 | grep -iq exuberant; then
 127                 exuberant $1
 128         elif $1 --version 2>&1 | grep -iq emacs; then
 129                 emacs $1
 130         else
 131                 all_sources | xargs $1 -a
 132         fi
 133 }
 134
 135
 136 # Support um (which uses SUBARCH)
 137 if [ "${ARCH}" = "um" ]; then
 138         if [ "$SUBARCH" = "i386" ]; then
 139                 archinclude=x86
 140         elif [ "$SUBARCH" = "x86_64" ]; then
 141                 archinclude=x86
 142         else
 143                 archinclude=${SUBARCH}
 144         fi
 145 fi
 146
 147 case "$1" in
 148         "cscope")
 149                 docscope
 150                 ;;
 151
 152         "tags")
 153                 xtags ctags
 154                 ;;
 155
 156         "TAGS")
 157                 xtags etags
 158                 ;;
 159 esac