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, SRCARCH, srctree, src, obj
   9
  10 if [ "$KBUILD_VERBOSE" = "1" ]; then
  11         set -x
  12 fi
  13
  14 # This is a duplicate of RCS_FIND_IGNORE without escaped '()'
  15 ignore="( -name SCCS -o -name BitKeeper -o -name .svn -o \
  16           -name CVS  -o -name .pc       -o -name .hg  -o \
  17           -name .git )                                   \
  18           -prune -o"
  19
  20 # Do not use full path if we do not use O=.. builds
  21 # Use make O=. {tags|cscope}
  22 # to force full paths for a non-O= build
  23 if [ "${KBUILD_SRC}" = "" ]; then
  24         tree=
  25 else
  26         tree=${srctree}/
  27 fi
  28
  29 # Find all available archs
  30 find_all_archs()
  31 {
  32         ALLSOURCE_ARCHS=""
  33         for arch in `ls ${tree}arch`; do
  34                 ALLSOURCE_ARCHS="${ALLSOURCE_ARCHS} "${arch##\/}
  35         done
  36 }
  37
  38 # Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
  39 if [ "${ALLSOURCE_ARCHS}" = "" ]; then
  40         ALLSOURCE_ARCHS=${SRCARCH}
  41 elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
  42         find_all_archs
  43 fi
  44
  45 # find sources in arch/$ARCH
  46 find_arch_sources()
  47 {
  48         for i in $archincludedir; do
  49                 prune="$prune -wholename $i -prune -o"
  50         done
  51         find ${tree}arch/$1 $ignore $subarchprune $prune -name "$2" -print;
  52 }
  53
  54 # find sources in arch/$1/include
  55 find_arch_include_sources()
  56 {
  57         include=$(find ${tree}arch/$1/ $subarchprune \
  58                                         -name include -type d -print);
  59         if [ -n "$include" ]; then
  60                 archincludedir="$archincludedir $include"
  61                 find $include $ignore -name "$2" -print;
  62         fi
  63 }
  64
  65 # find sources in include/
  66 find_include_sources()
  67 {
  68         find ${tree}include $ignore -name config -prune -o -name "$1" -print;
  69 }
  70
  71 # find sources in rest of tree
  72 # we could benefit from a list of dirs to search in here
  73 find_other_sources()
  74 {
  75         find ${tree}* $ignore \
  76              \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
  77                -name "$1" -print;
  78 }
  79
  80 find_sources()
  81 {
  82         find_arch_sources $1 "$2"
  83 }
  84
  85 all_sources()
  86 {
  87         find_arch_include_sources ${SRCARCH} '*.[chS]'
  88         if [ ! -z "$archinclude" ]; then
  89                 find_arch_include_sources $archinclude '*.[chS]'
  90         fi
  91         find_include_sources '*.[chS]'
  92         for arch in $ALLSOURCE_ARCHS
  93         do
  94                 find_sources $arch '*.[chS]'
  95         done
  96         find_other_sources '*.[chS]'
  97 }
  98
  99 all_kconfigs()
 100 {
 101         for arch in $ALLSOURCE_ARCHS; do
 102                 find_sources $arch 'Kconfig*'
 103         done
 104         find_other_sources 'Kconfig*'
 105 }
 106
 107 all_defconfigs()
 108 {
 109         find_sources $ALLSOURCE_ARCHS "defconfig"
 110 }
 111
 112 docscope()
 113 {
 114         (echo \-k; echo \-q; all_sources) > cscope.files
 115         cscope -b -f cscope.out
 116 }
 117
 118 dogtags()
 119 {
 120         all_sources | gtags -i -f -
 121 }
 122
 123 exuberant()
 124 {
 125         all_sources | xargs $1 -a                               \
 126         -I __initdata,__exitdata,__acquires,__releases          \
 127         -I __read_mostly,____cacheline_aligned                  \
 128         -I ____cacheline_aligned_in_smp                         \
 129         -I ____cacheline_internodealigned_in_smp                \
 130         -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL                      \
 131         -I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
 132         --extra=+f --c-kinds=+px                                \
 133         --regex-asm='/^(ENTRY|_GLOBAL)\(([^)]*)\).*/\2/'        \
 134         --regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\1/' \
 135         --regex-c++='/^TRACE_EVENT\(([^,)]*).*/trace_\1/'               \
 136         --regex-c++='/^DEFINE_EVENT\([^,)]*, *([^,)]*).*/trace_\1/'     \
 137         --regex-c++='/PAGEFLAG\(([^,)]*).*/Page\1/'                     \
 138         --regex-c++='/PAGEFLAG\(([^,)]*).*/SetPage\1/'                  \
 139         --regex-c++='/PAGEFLAG\(([^,)]*).*/ClearPage\1/'                \
 140         --regex-c++='/TESTSETFLAG\(([^,)]*).*/TestSetPage\1/'           \
 141         --regex-c++='/TESTPAGEFLAG\(([^,)]*).*/Page\1/'                 \
 142         --regex-c++='/SETPAGEFLAG\(([^,)]*).*/SetPage\1/'               \
 143         --regex-c++='/__SETPAGEFLAG\(([^,)]*).*/__SetPage\1/'           \
 144         --regex-c++='/TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/'       \
 145         --regex-c++='/__TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/'     \
 146         --regex-c++='/CLEARPAGEFLAG\(([^,)]*).*/ClearPage\1/'           \
 147         --regex-c++='/__CLEARPAGEFLAG\(([^,)]*).*/__ClearPage\1/'       \
 148         --regex-c++='/__PAGEFLAG\(([^,)]*).*/__SetPage\1/'              \
 149         --regex-c++='/__PAGEFLAG\(([^,)]*).*/__ClearPage\1/'            \
 150         --regex-c++='/PAGEFLAG_FALSE\(([^,)]*).*/Page\1/'               \
 151         --regex-c++='/TESTSCFLAG\(([^,)]*).*/TestSetPage\1/'            \
 152         --regex-c++='/TESTSCFLAG\(([^,)]*).*/TestClearPage\1/'          \
 153         --regex-c++='/SETPAGEFLAG_NOOP\(([^,)]*).*/SetPage\1/'          \
 154         --regex-c++='/CLEARPAGEFLAG_NOOP\(([^,)]*).*/ClearPage\1/'      \
 155         --regex-c++='/__CLEARPAGEFLAG_NOOP\(([^,)]*).*/__ClearPage\1/'  \
 156         --regex-c++='/TESTCLEARFLAG_FALSE\(([^,)]*).*/TestClearPage\1/' \
 157         --regex-c++='/__TESTCLEARFLAG_FALSE\(([^,)]*).*/__TestClearPage\1/' \
 158         --regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'                \
 159         --regex-c='/PCI_OP_READ\(([a-z]*[a-z]).*[1-4]\)/pci_bus_read_config_\1/' \
 160         --regex-c='/PCI_OP_WRITE\(([a-z]*[a-z]).*[1-4]\)/pci_bus_write_config_\1/'
 161
 162         all_kconfigs | xargs $1 -a                              \
 163         --langdef=kconfig --language-force=kconfig              \
 164         --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'
 165
 166         all_kconfigs | xargs $1 -a                              \
 167         --langdef=kconfig --language-force=kconfig              \
 168         --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'
 169
 170         all_defconfigs | xargs -r $1 -a                         \
 171         --langdef=dotconfig --language-force=dotconfig          \
 172         --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
 173 }
 174
 175 emacs()
 176 {
 177         all_sources | xargs $1 -a                               \
 178         --regex='/^(ENTRY|_GLOBAL)(\([^)]*\)).*/\2/'            \
 179         --regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/'   \
 180         --regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1/'          \
 181         --regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1/' \
 182         --regex='/PAGEFLAG\(([^,)]*).*/Page\1/'                 \
 183         --regex='/PAGEFLAG\(([^,)]*).*/SetPage\1/'              \
 184         --regex='/PAGEFLAG\(([^,)]*).*/ClearPage\1/'            \
 185         --regex='/TESTSETFLAG\(([^,)]*).*/TestSetPage\1/'       \
 186         --regex='/TESTPAGEFLAG\(([^,)]*).*/Page\1/'             \
 187         --regex='/SETPAGEFLAG\(([^,)]*).*/SetPage\1/'           \
 188         --regex='/__SETPAGEFLAG\(([^,)]*).*/__SetPage\1/'       \
 189         --regex='/TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/'   \
 190         --regex='/__TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/' \
 191         --regex='/CLEARPAGEFLAG\(([^,)]*).*/ClearPage\1/'       \
 192         --regex='/__CLEARPAGEFLAG\(([^,)]*).*/__ClearPage\1/'   \
 193         --regex='/__PAGEFLAG\(([^,)]*).*/__SetPage\1/'          \
 194         --regex='/__PAGEFLAG\(([^,)]*).*/__ClearPage\1/'        \
 195         --regex='/PAGEFLAG_FALSE\(([^,)]*).*/Page\1/'           \
 196         --regex='/TESTSCFLAG\(([^,)]*).*/TestSetPage\1/'        \
 197         --regex='/TESTSCFLAG\(([^,)]*).*/TestClearPage\1/'      \
 198         --regex='/SETPAGEFLAG_NOOP\(([^,)]*).*/SetPage\1/'      \
 199         --regex='/CLEARPAGEFLAG_NOOP\(([^,)]*).*/ClearPage\1/'  \
 200         --regex='/__CLEARPAGEFLAG_NOOP\(([^,)]*).*/__ClearPage\1/' \
 201         --regex='/TESTCLEARFLAG_FALSE\(([^,)]*).*/TestClearPage\1/' \
 202         --regex='/__TESTCLEARFLAG_FALSE\(([^,)]*).*/__TestClearPage\1/' \
 203         --regex='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'            \
 204         --regex='/PCI_OP_READ\(([a-z]*[a-z]).*[1-4]\)/pci_bus_read_config_\1/' \
 205         --regex='/PCI_OP_WRITE\(([a-z]*[a-z]).*[1-4]\)/pci_bus_write_config_\1/'
 206
 207         all_kconfigs | xargs $1 -a                              \
 208         --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
 209
 210         all_kconfigs | xargs $1 -a                              \
 211         --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'
 212
 213         all_defconfigs | xargs -r $1 -a                         \
 214         --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
 215 }
 216
 217 xtags()
 218 {
 219         if $1 --version 2>&1 | grep -iq exuberant; then
 220                 exuberant $1
 221         elif $1 --version 2>&1 | grep -iq emacs; then
 222                 emacs $1
 223         else
 224                 all_sources | xargs $1 -a
 225         fi
 226 }
 227
 228
 229 # Support um (which uses SUBARCH)
 230 if [ "${ARCH}" = "um" ]; then
 231         if [ "$SUBARCH" = "i386" ]; then
 232                 archinclude=x86
 233         elif [ "$SUBARCH" = "x86_64" ]; then
 234                 archinclude=x86
 235         else
 236                 archinclude=${SUBARCH}
 237         fi
 238 elif [ "${SRCARCH}" = "arm" -a "${SUBARCH}" != "" ]; then
 239         subarchdir=$(find ${tree}arch/$SRCARCH/ -name "mach-*" -type d -o \
 240                                                         -name "plat-*" -type d);
 241         for i in $subarchdir; do
 242                 case "$i" in
 243                         *"mach-"${SUBARCH})
 244                                 ;;
 245                         *"plat-"${SUBARCH})
 246                                 ;;
 247                         *)
 248                                 subarchprune="$subarchprune \
 249                                                 -wholename $i -prune -o"
 250                                 ;;
 251                 esac
 252         done
 253 fi
 254
 255 remove_structs=
 256 case "$1" in
 257         "cscope")
 258                 docscope
 259                 ;;
 260
 261         "gtags")
 262                 dogtags
 263                 ;;
 264
 265         "tags")
 266                 rm -f tags
 267                 xtags ctags
 268                 remove_structs=y
 269                 ;;
 270
 271         "TAGS")
 272                 rm -f TAGS
 273                 xtags etags
 274                 remove_structs=y
 275                 ;;
 276 esac
 277
 278 # Remove structure forward declarations.
 279 if [ -n "$remove_structs" ]; then
 280     LANG=C sed -i -e '/^\([a-zA-Z_][a-zA-Z0-9_]*\)\t.*\t\/\^struct \1;.*\$\/;"\tx$/d' $1
 281 fi