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