powerpc/mm: Remove unused variable declaration
[linux-2.6-block.git] / scripts / tags.sh
CommitLineData
93209d65 1#!/bin/bash
457c8996 2# SPDX-License-Identifier: GPL-2.0-only
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3# Generate tags or cscope files
4# Usage tags.sh <mode>
5#
6# mode may be any of: tags, TAGS, cscope
7#
8# Uses the following environment variables:
a8bac511 9# ARCH, SUBARCH, SRCARCH, srctree, src, obj
a680eedc 10
a6ba0cb3 11if [ "$KBUILD_VERBOSE" = "1" ]; then
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12 set -x
13fi
14
ae63b2d7
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15# RCS_FIND_IGNORE has escaped ()s -- remove them.
16ignore="$(echo "$RCS_FIND_IGNORE" | sed 's|\\||g' )"
17# tags and cscope files should also ignore MODVERSION *.mod.c files
18ignore="$ignore ( -name *.mod.c ) -prune -o"
a680eedc 19
4431d4ce 20# Do not use full path if we do not use O=.. builds
e93bc1a0
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21# Use make O=. {tags|cscope}
22# to force full paths for a non-O= build
c69ef1c8 23if [ "${srctree}" = "." -o -z "${srctree}" ]; then
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24 tree=
25else
709cc372 26 tree=${srctree}/
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27fi
28
8c38a532
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29# ignore userspace tools
30ignore="$ignore ( -path ${tree}tools ) -prune -o"
31
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32# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
33if [ "${ALLSOURCE_ARCHS}" = "" ]; then
34 ALLSOURCE_ARCHS=${SRCARCH}
bc75cc6b 35elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
656c1077 36 ALLSOURCE_ARCHS=$(find ${tree}arch/ -mindepth 1 -maxdepth 1 -type d -printf '%f ')
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37fi
38
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39# find sources in arch/$ARCH
40find_arch_sources()
41{
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42 for i in $archincludedir; do
43 prune="$prune -wholename $i -prune -o"
44 done
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45 find ${tree}arch/$1 $ignore $subarchprune $prune -name "$2" \
46 -not -type l -print;
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47}
48
49# find sources in arch/$1/include
50find_arch_include_sources()
51{
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52 include=$(find ${tree}arch/$1/ $subarchprune \
53 -name include -type d -print);
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GL
54 if [ -n "$include" ]; then
55 archincludedir="$archincludedir $include"
9b24a15d 56 find $include $ignore -name "$2" -not -type l -print;
f81b1be4 57 fi
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58}
59
60# find sources in include/
61find_include_sources()
62{
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63 find ${tree}include $ignore -name config -prune -o -name "$1" \
64 -not -type l -print;
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65}
66
67# find sources in rest of tree
68# we could benefit from a list of dirs to search in here
69find_other_sources()
70{
71 find ${tree}* $ignore \
99443f81 72 \( -path ${tree}include -o -path ${tree}arch -o -name '.tmp_*' \) -prune -o \
9b24a15d 73 -name "$1" -not -type l -print;
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74}
75
76find_sources()
77{
709cc372 78 find_arch_sources $1 "$2"
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79}
80
81all_sources()
82{
a8bac511 83 find_arch_include_sources ${SRCARCH} '*.[chS]'
a680eedc 84 if [ ! -z "$archinclude" ]; then
709cc372 85 find_arch_include_sources $archinclude '*.[chS]'
a680eedc 86 fi
4f628248 87 find_include_sources '*.[chS]'
f81b1be4
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88 for arch in $ALLSOURCE_ARCHS
89 do
90 find_sources $arch '*.[chS]'
91 done
4f628248 92 find_other_sources '*.[chS]'
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93}
94
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95all_compiled_sources()
96{
97 for i in $(all_sources); do
98 case "$i" in
99 *.[cS])
100 j=${i/\.[cS]/\.o}
cbf52a3e 101 j="${j#$tree}"
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102 if [ -e $j ]; then
103 echo $i
104 fi
105 ;;
106 *)
107 echo $i
108 ;;
109 esac
110 done
111}
112
113all_target_sources()
114{
115 if [ -n "$COMPILED_SOURCE" ]; then
116 all_compiled_sources
117 else
118 all_sources
119 fi
120}
121
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122all_kconfigs()
123{
7659c655
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124 find ${tree}arch/ -maxdepth 1 $ignore \
125 -name "Kconfig*" -not -type l -print;
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126 for arch in $ALLSOURCE_ARCHS; do
127 find_sources $arch 'Kconfig*'
128 done
129 find_other_sources 'Kconfig*'
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130}
131
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132docscope()
133{
923e02ec 134 (echo \-k; echo \-q; all_target_sources) > cscope.files
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135 cscope -b -f cscope.out
136}
137
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138dogtags()
139{
923e02ec 140 all_target_sources | gtags -i -f -
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141}
142
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143# Basic regular expressions with an optional /kind-spec/ for ctags and
144# the following limitations:
145# - No regex modifiers
146# - Use \{0,1\} instead of \?, because etags expects an unescaped ?
147# - \s is not working with etags, use a space or [ \t]
148# - \w works, but does not match underscores in etags
149# - etags regular expressions have to match at the start of a line;
150# a ^[^#] is prepended by setup_regex unless an anchor is already present
151regex_asm=(
152 '/^\(ENTRY\|_GLOBAL\)(\([[:alnum:]_\\]*\)).*/\2/'
153)
154regex_c=(
155 '/^SYSCALL_DEFINE[0-9](\([[:alnum:]_]*\).*/sys_\1/'
24d4e34f 156 '/^BPF_CALL_[0-9](\([[:alnum:]_]*\).*/\1/'
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157 '/^COMPAT_SYSCALL_DEFINE[0-9](\([[:alnum:]_]*\).*/compat_sys_\1/'
158 '/^TRACE_EVENT(\([[:alnum:]_]*\).*/trace_\1/'
159 '/^TRACE_EVENT(\([[:alnum:]_]*\).*/trace_\1_rcuidle/'
160 '/^DEFINE_EVENT([^,)]*, *\([[:alnum:]_]*\).*/trace_\1/'
161 '/^DEFINE_EVENT([^,)]*, *\([[:alnum:]_]*\).*/trace_\1_rcuidle/'
0a9e7da6
NR
162 '/^DEFINE_INSN_CACHE_OPS(\([[:alnum:]_]*\).*/get_\1_slot/'
163 '/^DEFINE_INSN_CACHE_OPS(\([[:alnum:]_]*\).*/free_\1_slot/'
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MM
164 '/^PAGEFLAG(\([[:alnum:]_]*\).*/Page\1/'
165 '/^PAGEFLAG(\([[:alnum:]_]*\).*/SetPage\1/'
166 '/^PAGEFLAG(\([[:alnum:]_]*\).*/ClearPage\1/'
167 '/^TESTSETFLAG(\([[:alnum:]_]*\).*/TestSetPage\1/'
168 '/^TESTPAGEFLAG(\([[:alnum:]_]*\).*/Page\1/'
169 '/^SETPAGEFLAG(\([[:alnum:]_]*\).*/SetPage\1/'
170 '/\<__SETPAGEFLAG(\([[:alnum:]_]*\).*/__SetPage\1/'
171 '/\<TESTCLEARFLAG(\([[:alnum:]_]*\).*/TestClearPage\1/'
172 '/\<__TESTCLEARFLAG(\([[:alnum:]_]*\).*/TestClearPage\1/'
173 '/\<CLEARPAGEFLAG(\([[:alnum:]_]*\).*/ClearPage\1/'
174 '/\<__CLEARPAGEFLAG(\([[:alnum:]_]*\).*/__ClearPage\1/'
175 '/^__PAGEFLAG(\([[:alnum:]_]*\).*/__SetPage\1/'
176 '/^__PAGEFLAG(\([[:alnum:]_]*\).*/__ClearPage\1/'
177 '/^PAGEFLAG_FALSE(\([[:alnum:]_]*\).*/Page\1/'
178 '/\<TESTSCFLAG(\([[:alnum:]_]*\).*/TestSetPage\1/'
179 '/\<TESTSCFLAG(\([[:alnum:]_]*\).*/TestClearPage\1/'
180 '/\<SETPAGEFLAG_NOOP(\([[:alnum:]_]*\).*/SetPage\1/'
181 '/\<CLEARPAGEFLAG_NOOP(\([[:alnum:]_]*\).*/ClearPage\1/'
182 '/\<__CLEARPAGEFLAG_NOOP(\([[:alnum:]_]*\).*/__ClearPage\1/'
183 '/\<TESTCLEARFLAG_FALSE(\([[:alnum:]_]*\).*/TestClearPage\1/'
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MW
184 '/^PAGE_TYPE_OPS(\([[:alnum:]_]*\).*/Page\1/'
185 '/^PAGE_TYPE_OPS(\([[:alnum:]_]*\).*/__SetPage\1/'
186 '/^PAGE_TYPE_OPS(\([[:alnum:]_]*\).*/__ClearPage\1/'
93209d65
MM
187 '/^TASK_PFA_TEST([^,]*, *\([[:alnum:]_]*\))/task_\1/'
188 '/^TASK_PFA_SET([^,]*, *\([[:alnum:]_]*\))/task_set_\1/'
189 '/^TASK_PFA_CLEAR([^,]*, *\([[:alnum:]_]*\))/task_clear_\1/'
190 '/^DEF_MMIO_\(IN\|OUT\)_[XD](\([[:alnum:]_]*\),[^)]*)/\2/'
191 '/^DEBUGGER_BOILERPLATE(\([[:alnum:]_]*\))/\1/'
192 '/^DEF_PCI_AC_\(\|NO\)RET(\([[:alnum:]_]*\).*/\2/'
193 '/^PCI_OP_READ(\(\w*\).*[1-4])/pci_bus_read_config_\1/'
194 '/^PCI_OP_WRITE(\(\w*\).*[1-4])/pci_bus_write_config_\1/'
cd68a525 195 '/\<DEFINE_\(RT_MUTEX\|MUTEX\|SEMAPHORE\|SPINLOCK\)(\([[:alnum:]_]*\)/\2/v/'
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MM
196 '/\<DEFINE_\(RAW_SPINLOCK\|RWLOCK\|SEQLOCK\)(\([[:alnum:]_]*\)/\2/v/'
197 '/\<DECLARE_\(RWSEM\|COMPLETION\)(\([[:alnum:]_]\+\)/\2/v/'
198 '/\<DECLARE_BITMAP(\([[:alnum:]_]*\)/\1/v/'
199 '/\(^\|\s\)\(\|L\|H\)LIST_HEAD(\([[:alnum:]_]*\)/\3/v/'
200 '/\(^\|\s\)RADIX_TREE(\([[:alnum:]_]*\)/\2/v/'
201 '/\<DEFINE_PER_CPU([^,]*, *\([[:alnum:]_]*\)/\1/v/'
202 '/\<DEFINE_PER_CPU_SHARED_ALIGNED([^,]*, *\([[:alnum:]_]*\)/\1/v/'
203 '/\<DECLARE_WAIT_QUEUE_HEAD(\([[:alnum:]_]*\)/\1/v/'
204 '/\<DECLARE_\(TASKLET\|WORK\|DELAYED_WORK\)(\([[:alnum:]_]*\)/\2/v/'
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205 '/\(^\s\)OFFSET(\([[:alnum:]_]*\)/\2/v/'
206 '/\(^\s\)DEFINE(\([[:alnum:]_]*\)/\2/v/'
1f6904f7 207 '/\<\(DEFINE\|DECLARE\)_HASHTABLE(\([[:alnum:]_]*\)/\2/v/'
cd68a525
KT
208 '/\<DEFINE_ID\(R\|A\)(\([[:alnum:]_]\+\)/\2/'
209 '/\<DEFINE_WD_CLASS(\([[:alnum:]_]\+\)/\1/'
210 '/\<ATOMIC_NOTIFIER_HEAD(\([[:alnum:]_]\+\)/\1/'
211 '/\<RAW_NOTIFIER_HEAD(\([[:alnum:]_]\+\)/\1/'
212 '/\<DECLARE_FAULT_ATTR(\([[:alnum:]_]\+\)/\1/'
213 '/\<BLOCKING_NOTIFIER_HEAD(\([[:alnum:]_]\+\)/\1/'
214 '/\<DEVICE_ATTR_\(RW\|RO\|WO\)(\([[:alnum:]_]\+\)/dev_attr_\2/'
215 '/\<DRIVER_ATTR_\(RW\|RO\|WO\)(\([[:alnum:]_]\+\)/driver_attr_\2/'
216 '/\<\(DEFINE\|DECLARE\)_STATIC_KEY_\(TRUE\|FALSE\)\(\|_RO\)(\([[:alnum:]_]\+\)/\4/'
93209d65
MM
217)
218regex_kconfig=(
219 '/^[[:blank:]]*\(menu\|\)config[[:blank:]]\+\([[:alnum:]_]\+\)/\2/'
220 '/^[[:blank:]]*\(menu\|\)config[[:blank:]]\+\([[:alnum:]_]\+\)/CONFIG_\2/'
221)
222setup_regex()
223{
224 local mode=$1 lang tmp=() r
225 shift
226
227 regex=()
228 for lang; do
229 case "$lang" in
230 asm) tmp=("${regex_asm[@]}") ;;
231 c) tmp=("${regex_c[@]}") ;;
232 kconfig) tmp=("${regex_kconfig[@]}") ;;
233 esac
234 for r in "${tmp[@]}"; do
235 if test "$mode" = "exuberant"; then
236 regex[${#regex[@]}]="--regex-$lang=${r}b"
237 else
238 # Remove ctags /kind-spec/
239 case "$r" in
240 /*/*/?/)
241 r=${r%?/}
242 esac
243 # Prepend ^[^#] unless already anchored
244 case "$r" in
245 /^*) ;;
246 *)
247 r="/^[^#]*${r#/}"
248 esac
249 regex[${#regex[@]}]="--regex=$r"
250 fi
251 done
252 done
253}
254
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SR
255exuberant()
256{
93209d65 257 setup_regex exuberant asm c
923e02ec 258 all_target_sources | xargs $1 -a \
e23ba825 259 -I __initdata,__exitdata,__initconst,__ro_after_init \
22c1587a 260 -I __initdata_memblock \
f5a82137 261 -I __refdata,__attribute,__maybe_unused,__always_unused \
cd68a525 262 -I __acquires,__releases,__deprecated,__always_inline \
1b2643f0 263 -I __read_mostly,__aligned,____cacheline_aligned \
a680eedc 264 -I ____cacheline_aligned_in_smp \
f5a82137 265 -I __cacheline_aligned,__cacheline_aligned_in_smp \
a680eedc 266 -I ____cacheline_internodealigned_in_smp \
1b2643f0 267 -I __used,__packed,__packed2__,__must_check,__must_hold \
f5a82137 268 -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL,ACPI_EXPORT_SYMBOL \
7db86dc9 269 -I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
1b2643f0 270 -I static,const \
d0c75f33
MM
271 --extra=+fq --c-kinds=+px --fields=+iaS --langmap=c:+.h \
272 "${regex[@]}"
a680eedc 273
93209d65 274 setup_regex exuberant kconfig
a680eedc 275 all_kconfigs | xargs $1 -a \
93209d65 276 --langdef=kconfig --language-force=kconfig "${regex[@]}"
a680eedc 277
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SR
278}
279
280emacs()
281{
93209d65
MM
282 setup_regex emacs asm c
283 all_target_sources | xargs $1 -a "${regex[@]}"
a680eedc 284
93209d65
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285 setup_regex emacs kconfig
286 all_kconfigs | xargs $1 -a "${regex[@]}"
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287}
288
289xtags()
290{
291 if $1 --version 2>&1 | grep -iq exuberant; then
292 exuberant $1
293 elif $1 --version 2>&1 | grep -iq emacs; then
294 emacs $1
295 else
923e02ec 296 all_target_sources | xargs $1 -a
bb66fc67 297 fi
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SR
298}
299
a680eedc 300# Support um (which uses SUBARCH)
a6ba0cb3
JS
301if [ "${ARCH}" = "um" ]; then
302 if [ "$SUBARCH" = "i386" ]; then
a680eedc 303 archinclude=x86
a6ba0cb3 304 elif [ "$SUBARCH" = "x86_64" ]; then
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SR
305 archinclude=x86
306 else
307 archinclude=${SUBARCH}
308 fi
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JK
309elif [ "${SRCARCH}" = "arm" -a "${SUBARCH}" != "" ]; then
310 subarchdir=$(find ${tree}arch/$SRCARCH/ -name "mach-*" -type d -o \
311 -name "plat-*" -type d);
779d5eb3
SP
312 mach_suffix=$SUBARCH
313 plat_suffix=$SUBARCH
314
315 # Special cases when $plat_suffix != $mach_suffix
316 case $mach_suffix in
317 "omap1" | "omap2")
318 plat_suffix="omap"
319 ;;
320 esac
321
322 if [ ! -d ${tree}arch/$SRCARCH/mach-$mach_suffix ]; then
323 echo "Warning: arch/arm/mach-$mach_suffix/ not found." >&2
324 echo " Fix your \$SUBARCH appropriately" >&2
325 fi
326
59658509
JK
327 for i in $subarchdir; do
328 case "$i" in
779d5eb3 329 *"mach-"${mach_suffix})
59658509 330 ;;
779d5eb3 331 *"plat-"${plat_suffix})
59658509
JK
332 ;;
333 *)
334 subarchprune="$subarchprune \
335 -wholename $i -prune -o"
336 ;;
337 esac
338 done
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339fi
340
66979224 341remove_structs=
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342case "$1" in
343 "cscope")
344 docscope
345 ;;
346
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347 "gtags")
348 dogtags
349 ;;
350
a680eedc 351 "tags")
2e6cb8b0 352 rm -f tags
a680eedc 353 xtags ctags
66979224 354 remove_structs=y
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355 ;;
356
357 "TAGS")
2e6cb8b0 358 rm -f TAGS
a680eedc 359 xtags etags
66979224 360 remove_structs=y
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361 ;;
362esac
66979224
YB
363
364# Remove structure forward declarations.
0eb043d0 365if [ -n "$remove_structs" ]; then
66979224
YB
366 LANG=C sed -i -e '/^\([a-zA-Z_][a-zA-Z0-9_]*\)\t.*\t\/\^struct \1;.*\$\/;"\tx$/d' $1
367fi