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 [ "$KBUILD_VERBOSE" = "1" ]; then
  11         set -x
  12 fi
  13
  14 # RCS_FIND_IGNORE has escaped ()s -- remove them.
  15 ignore="$(echo "$RCS_FIND_IGNORE" | sed 's|\\||g' )"
  16 # tags and cscope files should also ignore MODVERSION *.mod.c files
  17 ignore="$ignore ( -name *.mod.c ) -prune -o"
  18
  19 # Do not use full path if we do not use O=.. builds
  20 # Use make O=. {tags|cscope}
  21 # to force full paths for a non-O= build
  22 if [ "${KBUILD_SRC}" = "" ]; then
  23         tree=
  24 else
  25         tree=${srctree}/
  26 fi
  27
  28 # ignore userspace tools
  29 ignore="$ignore ( -path ${tree}tools ) -prune -o"
  30
  31 # Find all available archs
  32 find_all_archs()
  33 {
  34         ALLSOURCE_ARCHS=""
  35         for arch in `ls ${tree}arch`; do
  36                 ALLSOURCE_ARCHS="${ALLSOURCE_ARCHS} "${arch##\/}
  37         done
  38 }
  39
  40 # Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
  41 if [ "${ALLSOURCE_ARCHS}" = "" ]; then
  42         ALLSOURCE_ARCHS=${SRCARCH}
  43 elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
  44         find_all_archs
  45 fi
  46
  47 # find sources in arch/$ARCH
  48 find_arch_sources()
  49 {
  50         for i in $archincludedir; do
  51                 prune="$prune -wholename $i -prune -o"
  52         done
  53         find ${tree}arch/$1 $ignore $subarchprune $prune -name "$2" \
  54                 -not -type l -print;
  55 }
  56
  57 # find sources in arch/$1/include
  58 find_arch_include_sources()
  59 {
  60         include=$(find ${tree}arch/$1/ $subarchprune \
  61                                         -name include -type d -print);
  62         if [ -n "$include" ]; then
  63                 archincludedir="$archincludedir $include"
  64                 find $include $ignore -name "$2" -not -type l -print;
  65         fi
  66 }
  67
  68 # find sources in include/
  69 find_include_sources()
  70 {
  71         find ${tree}include $ignore -name config -prune -o -name "$1" \
  72                 -not -type l -print;
  73 }
  74
  75 # find sources in rest of tree
  76 # we could benefit from a list of dirs to search in here
  77 find_other_sources()
  78 {
  79         find ${tree}* $ignore \
  80              \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
  81                -name "$1" -not -type l -print;
  82 }
  83
  84 find_sources()
  85 {
  86         find_arch_sources $1 "$2"
  87 }
  88
  89 all_sources()
  90 {
  91         find_arch_include_sources ${SRCARCH} '*.[chS]'
  92         if [ ! -z "$archinclude" ]; then
  93                 find_arch_include_sources $archinclude '*.[chS]'
  94         fi
  95         find_include_sources '*.[chS]'
  96         for arch in $ALLSOURCE_ARCHS
  97         do
  98                 find_sources $arch '*.[chS]'
  99         done
 100         find_other_sources '*.[chS]'
 101 }
 102
 103 all_compiled_sources()
 104 {
 105         for i in $(all_sources); do
 106                 case "$i" in
 107                         *.[cS])
 108                                 j=${i/\.[cS]/\.o}
 109                                 if [ -e $j ]; then
 110                                         echo $i
 111                                 fi
 112                                 ;;
 113                         *)
 114                                 echo $i
 115                                 ;;
 116                 esac
 117         done
 118 }
 119
 120 all_target_sources()
 121 {
 122         if [ -n "$COMPILED_SOURCE" ]; then
 123                 all_compiled_sources
 124         else
 125                 all_sources
 126         fi
 127 }
 128
 129 all_kconfigs()
 130 {
 131         for arch in $ALLSOURCE_ARCHS; do
 132                 find_sources $arch 'Kconfig*'
 133         done
 134         find_other_sources 'Kconfig*'
 135 }
 136
 137 all_defconfigs()
 138 {
 139         find_sources $ALLSOURCE_ARCHS "defconfig"
 140 }
 141
 142 docscope()
 143 {
 144         (echo \-k; echo \-q; all_target_sources) > cscope.files
 145         cscope -b -f cscope.out
 146 }
 147
 148 dogtags()
 149 {
 150         all_target_sources | gtags -i -f -
 151 }
 152
 153 exuberant()
 154 {
 155         all_target_sources | xargs $1 -a                        \
 156         -I __initdata,__exitdata,__initconst,                   \
 157         -I __cpuinitdata,__initdata_memblock                    \
 158         -I __refdata,__attribute,__maybe_unused,__always_unused \
 159         -I __acquires,__releases,__deprecated                   \
 160         -I __read_mostly,__aligned,____cacheline_aligned        \
 161         -I ____cacheline_aligned_in_smp                         \
 162         -I __cacheline_aligned,__cacheline_aligned_in_smp       \
 163         -I ____cacheline_internodealigned_in_smp                \
 164         -I __used,__packed,__packed2__,__must_check,__must_hold \
 165         -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL,ACPI_EXPORT_SYMBOL   \
 166         -I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
 167         -I static,const                                         \
 168         --extra=+f --c-kinds=+px                                \
 169         --regex-asm='/^(ENTRY|_GLOBAL)\(([^)]*)\).*/\2/'        \
 170         --regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\1/' \
 171         --regex-c++='/^TRACE_EVENT\(([^,)]*).*/trace_\1/'               \
 172         --regex-c++='/^DEFINE_EVENT\([^,)]*, *([^,)]*).*/trace_\1/'     \
 173         --regex-c++='/PAGEFLAG\(([^,)]*).*/Page\1/'                     \
 174         --regex-c++='/PAGEFLAG\(([^,)]*).*/SetPage\1/'                  \
 175         --regex-c++='/PAGEFLAG\(([^,)]*).*/ClearPage\1/'                \
 176         --regex-c++='/TESTSETFLAG\(([^,)]*).*/TestSetPage\1/'           \
 177         --regex-c++='/TESTPAGEFLAG\(([^,)]*).*/Page\1/'                 \
 178         --regex-c++='/SETPAGEFLAG\(([^,)]*).*/SetPage\1/'               \
 179         --regex-c++='/__SETPAGEFLAG\(([^,)]*).*/__SetPage\1/'           \
 180         --regex-c++='/TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/'       \
 181         --regex-c++='/__TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/'     \
 182         --regex-c++='/CLEARPAGEFLAG\(([^,)]*).*/ClearPage\1/'           \
 183         --regex-c++='/__CLEARPAGEFLAG\(([^,)]*).*/__ClearPage\1/'       \
 184         --regex-c++='/__PAGEFLAG\(([^,)]*).*/__SetPage\1/'              \
 185         --regex-c++='/__PAGEFLAG\(([^,)]*).*/__ClearPage\1/'            \
 186         --regex-c++='/PAGEFLAG_FALSE\(([^,)]*).*/Page\1/'               \
 187         --regex-c++='/TESTSCFLAG\(([^,)]*).*/TestSetPage\1/'            \
 188         --regex-c++='/TESTSCFLAG\(([^,)]*).*/TestClearPage\1/'          \
 189         --regex-c++='/SETPAGEFLAG_NOOP\(([^,)]*).*/SetPage\1/'          \
 190         --regex-c++='/CLEARPAGEFLAG_NOOP\(([^,)]*).*/ClearPage\1/'      \
 191         --regex-c++='/__CLEARPAGEFLAG_NOOP\(([^,)]*).*/__ClearPage\1/'  \
 192         --regex-c++='/TESTCLEARFLAG_FALSE\(([^,)]*).*/TestClearPage\1/' \
 193         --regex-c++='/__TESTCLEARFLAG_FALSE\(([^,)]*).*/__TestClearPage\1/' \
 194         --regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'                \
 195         --regex-c++='/TESTPCGFLAG\(([^,)]*).*/PageCgroup\1/'            \
 196         --regex-c++='/SETPCGFLAG\(([^,)]*).*/SetPageCgroup\1/'          \
 197         --regex-c++='/CLEARPCGFLAG\(([^,)]*).*/ClearPageCgroup\1/'      \
 198         --regex-c++='/TESTCLEARPCGFLAG\(([^,)]*).*/TestClearPageCgroup\1/' \
 199         --regex-c='/PCI_OP_READ\((\w*).*[1-4]\)/pci_bus_read_config_\1/' \
 200         --regex-c='/PCI_OP_WRITE\((\w*).*[1-4]\)/pci_bus_write_config_\1/' \
 201         --regex-c='/DEFINE_(MUTEX|SEMAPHORE|SPINLOCK)\((\w*)/\2/v/'     \
 202         --regex-c='/DEFINE_(RAW_SPINLOCK|RWLOCK|SEQLOCK)\((\w*)/\2/v/'  \
 203         --regex-c='/DECLARE_(RWSEM|COMPLETION)\((\w*)/\2/v/'            \
 204         --regex-c='/DECLARE_BITMAP\((\w*)/\1/v/'                        \
 205         --regex-c='/(^|\s)(|L|H)LIST_HEAD\((\w*)/\3/v/'                 \
 206         --regex-c='/(^|\s)RADIX_TREE\((\w*)/\2/v/'                      \
 207         --regex-c='/DEFINE_PER_CPU\(([^,]*,\s*)(\w*).*\)/\2/v/'         \
 208         --regex-c='/DEFINE_PER_CPU_SHARED_ALIGNED\(([^,]*,\s*)(\w*).*\)/\2/v/' \
 209         --regex-c='/DECLARE_WAIT_QUEUE_HEAD\((\w*)/\1/v/'               \
 210         --regex-c='/DECLARE_(TASKLET|WORK|DELAYED_WORK)\((\w*)/\2/v/'   \
 211         --regex-c='/DEFINE_PCI_DEVICE_TABLE\((\w*)/\1/v/'               \
 212         --regex-c='/(^\s)OFFSET\((\w*)/\2/v/'                           \
 213         --regex-c='/(^\s)DEFINE\((\w*)/\2/v/'                           \
 214         --regex-c='/DEFINE_HASHTABLE\((\w*)/\1/v/'
 215
 216         all_kconfigs | xargs $1 -a                              \
 217         --langdef=kconfig --language-force=kconfig              \
 218         --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'
 219
 220         all_kconfigs | xargs $1 -a                              \
 221         --langdef=kconfig --language-force=kconfig              \
 222         --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'
 223
 224         all_defconfigs | xargs -r $1 -a                         \
 225         --langdef=dotconfig --language-force=dotconfig          \
 226         --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
 227 }
 228
 229 emacs()
 230 {
 231         all_target_sources | xargs $1 -a                        \
 232         --regex='/^\(ENTRY\|_GLOBAL\)(\([^)]*\)).*/\2/'         \
 233         --regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/'   \
 234         --regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1/'          \
 235         --regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1/' \
 236         --regex='/PAGEFLAG(\([^,)]*\).*/Page\1/'                        \
 237         --regex='/PAGEFLAG(\([^,)]*\).*/SetPage\1/'             \
 238         --regex='/PAGEFLAG(\([^,)]*\).*/ClearPage\1/'           \
 239         --regex='/TESTSETFLAG(\([^,)]*\).*/TestSetPage\1/'      \
 240         --regex='/TESTPAGEFLAG(\([^,)]*\).*/Page\1/'            \
 241         --regex='/SETPAGEFLAG(\([^,)]*\).*/SetPage\1/'          \
 242         --regex='/__SETPAGEFLAG(\([^,)]*\).*/__SetPage\1/'      \
 243         --regex='/TESTCLEARFLAG(\([^,)]*\).*/TestClearPage\1/'  \
 244         --regex='/__TESTCLEARFLAG(\([^,)]*\).*/TestClearPage\1/'        \
 245         --regex='/CLEARPAGEFLAG(\([^,)]*\).*/ClearPage\1/'      \
 246         --regex='/__CLEARPAGEFLAG(\([^,)]*\).*/__ClearPage\1/'  \
 247         --regex='/__PAGEFLAG(\([^,)]*\).*/__SetPage\1/'         \
 248         --regex='/__PAGEFLAG(\([^,)]*\).*/__ClearPage\1/'       \
 249         --regex='/PAGEFLAG_FALSE(\([^,)]*\).*/Page\1/'          \
 250         --regex='/TESTSCFLAG(\([^,)]*\).*/TestSetPage\1/'       \
 251         --regex='/TESTSCFLAG(\([^,)]*\).*/TestClearPage\1/'     \
 252         --regex='/SETPAGEFLAG_NOOP(\([^,)]*\).*/SetPage\1/'     \
 253         --regex='/CLEARPAGEFLAG_NOOP(\([^,)]*\).*/ClearPage\1/' \
 254         --regex='/__CLEARPAGEFLAG_NOOP(\([^,)]*\).*/__ClearPage\1/' \
 255         --regex='/TESTCLEARFLAG_FALSE(\([^,)]*\).*/TestClearPage\1/' \
 256         --regex='/__TESTCLEARFLAG_FALSE(\([^,)]*\).*/__TestClearPage\1/' \
 257         --regex='/TESTPCGFLAG\(([^,)]*).*/PageCgroup\1/'        \
 258         --regex='/SETPCGFLAG\(([^,)]*).*/SetPageCgroup\1/'      \
 259         --regex='/CLEARPCGFLAG\(([^,)]*).*/ClearPageCgroup\1/'  \
 260         --regex='/TESTCLEARPCGFLAG\(([^,)]*).*/TestClearPageCgroup\1/' \
 261         --regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'           \
 262         --regex='/PCI_OP_READ(\([a-z]*[a-z]\).*[1-4])/pci_bus_read_config_\1/' \
 263         --regex='/PCI_OP_WRITE(\([a-z]*[a-z]\).*[1-4])/pci_bus_write_config_\1/'\
 264         --regex='/DEFINE_HASHTABLE\((\w*)/\1/v/'
 265
 266         all_kconfigs | xargs $1 -a                              \
 267         --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
 268
 269         all_kconfigs | xargs $1 -a                              \
 270         --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'
 271
 272         all_defconfigs | xargs -r $1 -a                         \
 273         --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
 274 }
 275
 276 xtags()
 277 {
 278         if $1 --version 2>&1 | grep -iq exuberant; then
 279                 exuberant $1
 280         elif $1 --version 2>&1 | grep -iq emacs; then
 281                 emacs $1
 282         else
 283                 all_target_sources | xargs $1 -a
 284         fi
 285 }
 286
 287 # Support um (which uses SUBARCH)
 288 if [ "${ARCH}" = "um" ]; then
 289         if [ "$SUBARCH" = "i386" ]; then
 290                 archinclude=x86
 291         elif [ "$SUBARCH" = "x86_64" ]; then
 292                 archinclude=x86
 293         else
 294                 archinclude=${SUBARCH}
 295         fi
 296 elif [ "${SRCARCH}" = "arm" -a "${SUBARCH}" != "" ]; then
 297         subarchdir=$(find ${tree}arch/$SRCARCH/ -name "mach-*" -type d -o \
 298                                                         -name "plat-*" -type d);
 299         for i in $subarchdir; do
 300                 case "$i" in
 301                         *"mach-"${SUBARCH})
 302                                 ;;
 303                         *"plat-"${SUBARCH})
 304                                 ;;
 305                         *)
 306                                 subarchprune="$subarchprune \
 307                                                 -wholename $i -prune -o"
 308                                 ;;
 309                 esac
 310         done
 311 fi
 312
 313 remove_structs=
 314 case "$1" in
 315         "cscope")
 316                 docscope
 317                 ;;
 318
 319         "gtags")
 320                 dogtags
 321                 ;;
 322
 323         "tags")
 324                 rm -f tags
 325                 xtags ctags
 326                 remove_structs=y
 327                 ;;
 328
 329         "TAGS")
 330                 rm -f TAGS
 331                 xtags etags
 332                 remove_structs=y
 333                 ;;
 334 esac
 335
 336 # Remove structure forward declarations.
 337 if [ -n "$remove_structs" ]; then
 338     LANG=C sed -i -e '/^\([a-zA-Z_][a-zA-Z0-9_]*\)\t.*\t\/\^struct \1;.*\$\/;"\tx$/d' $1
 339 fi