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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
10if [ "$KBUILD_VERBOSE" = "1" ]; then
11 set -x
12fi
13
14# This is a duplicate of RCS_FIND_IGNORE without escaped '()'
15ignore="( -name SCCS -o -name BitKeeper -o -name .svn -o \
16 -name CVS -o -name .pc -o -name .hg -o \
17 -name .git ) \
18 -prune -o"
19
20# Do not use full path if we do not use O=.. builds
21# Use make O=. {tags|cscope}
22# to force full paths for a non-O= build
23if [ "${KBUILD_SRC}" = "" ]; then
24 tree=
25else
26 tree=${srctree}/
27fi
28
29# Find all available archs
30find_all_archs()
31{
32 ALLSOURCE_ARCHS=""
33 for arch in `ls ${tree}arch`; do
34 ALLSOURCE_ARCHS="${ALLSOURCE_ARCHS} "${arch##\/}
35 done
36}
37
38# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
39if [ "${ALLSOURCE_ARCHS}" = "" ]; then
40 ALLSOURCE_ARCHS=${SRCARCH}
41elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
42 find_all_archs
43fi
44
45# find sources in arch/$ARCH
46find_arch_sources()
47{
48 for i in $archincludedir; do
49 prune="$prune -wholename $i -prune -o"
50 done
51 find ${tree}arch/$1 $ignore $prune -name "$2" -print;
52}
53
54# find sources in arch/$1/include
55find_arch_include_sources()
56{
57 include=$(find ${tree}arch/$1/ -name include -type d);
58 if [ -n "$include" ]; then
59 archincludedir="$archincludedir $include"
60 find $include $ignore -name "$2" -print;
61 fi
62}
63
64# find sources in include/
65find_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
72find_other_sources()
73{
74 find ${tree}* $ignore \
75 \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
76 -name "$1" -print;
77}
78
79find_sources()
80{
81 find_arch_sources $1 "$2"
82}
83
84all_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
98all_kconfigs()
99{
100 for arch in $ALLSOURCE_ARCHS; do
101 find_sources $arch 'Kconfig*'
102 done
103 find_other_sources 'Kconfig*'
104}
105
106all_defconfigs()
107{
108 find_sources $ALLSOURCE_ARCHS "defconfig"
109}
110
111docscope()
112{
113 (echo \-k; echo \-q; all_sources) > cscope.files
114 cscope -b -f cscope.out
115}
116
117dogtags()
118{
119 all_sources | gtags -f -
120}
121
122exuberant()
123{
124 all_sources | xargs $1 -a \
125 -I __initdata,__exitdata,__acquires,__releases \
126 -I __read_mostly,____cacheline_aligned \
127 -I ____cacheline_aligned_in_smp \
128 -I ____cacheline_internodealigned_in_smp \
129 -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
130 -I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
131 --extra=+f --c-kinds=+px \
132 --regex-asm='/^ENTRY\(([^)]*)\).*/\1/' \
133 --regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\1/' \
134 --regex-c++='/^TRACE_EVENT\(([^,)]*).*/trace_\1/' \
135 --regex-c++='/^DEFINE_EVENT\([^,)]*, *([^,)]*).*/trace_\1/'
136
137 all_kconfigs | xargs $1 -a \
138 --langdef=kconfig --language-force=kconfig \
139 --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'
140
141 all_kconfigs | xargs $1 -a \
142 --langdef=kconfig --language-force=kconfig \
143 --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'
144
145 all_defconfigs | xargs -r $1 -a \
146 --langdef=dotconfig --language-force=dotconfig \
147 --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
148
149}
150
151emacs()
152{
153 all_sources | xargs $1 -a \
154 --regex='/^ENTRY(\([^)]*\)).*/\1/' \
155 --regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/' \
156 --regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1/' \
157 --regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1/'
158
159 all_kconfigs | xargs $1 -a \
160 --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
161
162 all_kconfigs | xargs $1 -a \
163 --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'
164
165 all_defconfigs | xargs -r $1 -a \
166 --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
167}
168
169xtags()
170{
171 if $1 --version 2>&1 | grep -iq exuberant; then
172 exuberant $1
173 elif $1 --version 2>&1 | grep -iq emacs; then
174 emacs $1
175 else
176 all_sources | xargs $1 -a
177 fi
178}
179
180
181# Support um (which uses SUBARCH)
182if [ "${ARCH}" = "um" ]; then
183 if [ "$SUBARCH" = "i386" ]; then
184 archinclude=x86
185 elif [ "$SUBARCH" = "x86_64" ]; then
186 archinclude=x86
187 else
188 archinclude=${SUBARCH}
189 fi
190fi
191
192case "$1" in
193 "cscope")
194 docscope
195 ;;
196
197 "gtags")
198 dogtags
199 ;;
200
201 "tags")
202 rm -f tags
203 xtags ctags
204 ;;
205
206 "TAGS")
207 rm -f TAGS
208 xtags etags
209 ;;
210esac
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0-only
3# Generate tags or cscope files
4# Usage tags.sh <mode>
5#
6# mode may be any of: tags, gtags, TAGS, cscope
7#
8# Uses the following environment variables:
9# SUBARCH, SRCARCH, srctree
10
11if [[ "$KBUILD_VERBOSE" =~ 1 ]]; then
12 set -x
13fi
14
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="$ignore ( -name *.mod.c ) -prune -o"
19
20# ignore arbitrary directories
21if [ -n "${IGNORE_DIRS}" ]; then
22 for i in ${IGNORE_DIRS}; do
23 ignore="${ignore} ( -path $i ) -prune -o"
24 done
25fi
26
27# Use make KBUILD_ABS_SRCTREE=1 {tags|cscope}
28# to force full paths for a non-O= build
29if [ "${srctree}" = "." -o -z "${srctree}" ]; then
30 tree=
31else
32 tree=${srctree}/
33fi
34
35# gtags(1) refuses to index any file outside of its current working dir.
36# If gtags indexing is requested and the build output directory is not
37# the kernel source tree, index all files in absolute-path form.
38if [[ "$1" == "gtags" && -n "${tree}" ]]; then
39 tree=$(realpath "$tree")/
40fi
41
42# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
43if [ "${ALLSOURCE_ARCHS}" = "" ]; then
44 ALLSOURCE_ARCHS=${SRCARCH}
45elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
46 ALLSOURCE_ARCHS=$(find ${tree}arch/ -mindepth 1 -maxdepth 1 -type d -printf '%f ')
47fi
48
49# find sources in arch/$1
50find_arch_sources()
51{
52 for i in $archincludedir; do
53 local prune="$prune ( -path $i ) -prune -o"
54 done
55 find ${tree}arch/$1 $ignore $prune -name "$2" -not -type l -print;
56}
57
58# find sources in arch/$1/include
59find_arch_include_sources()
60{
61 local include=$(find ${tree}arch/$1/ -name include -type d -print);
62 if [ -n "$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/
69find_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
77find_other_sources()
78{
79 find ${tree}* $ignore \
80 \( -path ${tree}include -o -path ${tree}arch -o -name '.tmp_*' \) -prune -o \
81 -name "$1" -not -type l -print;
82}
83
84all_sources()
85{
86 find_arch_include_sources ${SRCARCH} '*.[chS]'
87 if [ -n "$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_arch_sources $arch '*.[chS]'
94 done
95 find_other_sources '*.[chS]'
96}
97
98all_compiled_sources()
99{
100 {
101 echo include/generated/autoconf.h
102 find $ignore -name "*.cmd" -exec \
103 grep -Poh '(?<=^ )\S+|(?<== )\S+[^\\](?=$)' {} \+ |
104 awk '!a[$0]++'
105 } | xargs realpath -esq $([ -z "$KBUILD_ABS_SRCTREE" ] && echo --relative-to=.) |
106 sort -u
107}
108
109all_target_sources()
110{
111 if [ -n "$COMPILED_SOURCE" ]; then
112 all_compiled_sources
113 else
114 all_sources
115 fi
116}
117
118all_kconfigs()
119{
120 find ${tree}arch/ -maxdepth 1 $ignore \
121 -name "Kconfig*" -not -type l -print;
122 for arch in $ALLSOURCE_ARCHS; do
123 find_arch_sources $arch 'Kconfig*'
124 done
125 find_other_sources 'Kconfig*'
126}
127
128docscope()
129{
130 (echo \-k; echo \-q; all_target_sources) > cscope.files
131 cscope -b -f cscope.out
132}
133
134dogtags()
135{
136 all_target_sources | gtags -i -C "${tree:-.}" -f - "$PWD"
137}
138
139# Basic regular expressions with an optional /kind-spec/ for ctags and
140# the following limitations:
141# - No regex modifiers
142# - Use \{0,1\} instead of \?, because etags expects an unescaped ?
143# - \s is not working with etags, use a space or [ \t]
144# - \w works, but does not match underscores in etags
145# - etags regular expressions have to match at the start of a line;
146# a ^[^#] is prepended by setup_regex unless an anchor is already present
147regex_asm=(
148 '/^\(ENTRY\|_GLOBAL\)([[:space:]]*\([[:alnum:]_\\]*\)).*/\2/'
149)
150regex_c=(
151 '/^SYSCALL_DEFINE[0-9]([[:space:]]*\([[:alnum:]_]*\).*/sys_\1/'
152 '/^BPF_CALL_[0-9]([[:space:]]*\([[:alnum:]_]*\).*/\1/'
153 '/^COMPAT_SYSCALL_DEFINE[0-9]([[:space:]]*\([[:alnum:]_]*\).*/compat_sys_\1/'
154 '/^TRACE_EVENT([[:space:]]*\([[:alnum:]_]*\).*/trace_\1/'
155 '/^DEFINE_EVENT([^,)]*,[[:space:]]*\([[:alnum:]_]*\).*/trace_\1/'
156 '/^DEFINE_INSN_CACHE_OPS([[:space:]]*\([[:alnum:]_]*\).*/get_\1_slot/'
157 '/^DEFINE_INSN_CACHE_OPS([[:space:]]*\([[:alnum:]_]*\).*/free_\1_slot/'
158 '/^PAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/Page\1/'
159 '/^PAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/SetPage\1/'
160 '/^PAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/ClearPage\1/'
161 '/^TESTSETFLAG([[:space:]]*\([[:alnum:]_]*\).*/TestSetPage\1/'
162 '/^TESTPAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/Page\1/'
163 '/^SETPAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/SetPage\1/'
164 '/\<__SETPAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/__SetPage\1/'
165 '/\<TESTCLEARFLAG([[:space:]]*\([[:alnum:]_]*\).*/TestClearPage\1/'
166 '/\<__TESTCLEARFLAG([[:space:]]*\([[:alnum:]_]*\).*/TestClearPage\1/'
167 '/\<CLEARPAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/ClearPage\1/'
168 '/\<__CLEARPAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/__ClearPage\1/'
169 '/^__PAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/__SetPage\1/'
170 '/^__PAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/__ClearPage\1/'
171 '/^PAGEFLAG_FALSE([[:space:]]*\([[:alnum:]_]*\).*/Page\1/'
172 '/\<TESTSCFLAG([[:space:]]*\([[:alnum:]_]*\).*/TestSetPage\1/'
173 '/\<TESTSCFLAG([[:space:]]*\([[:alnum:]_]*\).*/TestClearPage\1/'
174 '/\<SETPAGEFLAG_NOOP([[:space:]]*\([[:alnum:]_]*\).*/SetPage\1/'
175 '/\<CLEARPAGEFLAG_NOOP([[:space:]]*\([[:alnum:]_]*\).*/ClearPage\1/'
176 '/\<__CLEARPAGEFLAG_NOOP([[:space:]]*\([[:alnum:]_]*\).*/__ClearPage\1/'
177 '/\<TESTCLEARFLAG_FALSE([[:space:]]*\([[:alnum:]_]*\).*/TestClearPage\1/'
178 '/^PAGE_TYPE_OPS([[:space:]]*\([[:alnum:]_]*\).*/Page\1/'
179 '/^PAGE_TYPE_OPS([[:space:]]*\([[:alnum:]_]*\).*/__SetPage\1/'
180 '/^PAGE_TYPE_OPS([[:space:]]*\([[:alnum:]_]*\).*/__ClearPage\1/'
181 '/^TASK_PFA_TEST([^,]*,[[:space:]]*\([[:alnum:]_]*\))/task_\1/'
182 '/^TASK_PFA_SET([^,]*,[[:space:]]*\([[:alnum:]_]*\))/task_set_\1/'
183 '/^TASK_PFA_CLEAR([^,]*,[[:space:]]*\([[:alnum:]_]*\))/task_clear_\1/'
184 '/^DEF_MMIO_\(IN\|OUT\)_[XD]([[:space:]]*\([[:alnum:]_]*\),[^)]*)/\2/'
185 '/^DEBUGGER_BOILERPLATE([[:space:]]*\([[:alnum:]_]*\))/\1/'
186 '/^DEF_PCI_AC_\(\|NO\)RET([[:space:]]*\([[:alnum:]_]*\).*/\2/'
187 '/^PCI_OP_READ([[:space:]]*\(\w*\).*[1-4])/pci_bus_read_config_\1/'
188 '/^PCI_OP_WRITE([[:space:]]*\(\w*\).*[1-4])/pci_bus_write_config_\1/'
189 '/\<DEFINE_\(RT_MUTEX\|MUTEX\|SEMAPHORE\|SPINLOCK\)([[:space:]]*\([[:alnum:]_]*\)/\2/v/'
190 '/\<DEFINE_\(RAW_SPINLOCK\|RWLOCK\|SEQLOCK\)([[:space:]]*\([[:alnum:]_]*\)/\2/v/'
191 '/\<DECLARE_\(RWSEM\|COMPLETION\)([[:space:]]*\([[:alnum:]_]\+\)/\2/v/'
192 '/\<DECLARE_BITMAP([[:space:]]*\([[:alnum:]_]\+\)/\1/v/'
193 '/\(^\|\s\)\(\|L\|H\)LIST_HEAD([[:space:]]*\([[:alnum:]_]*\)/\3/v/'
194 '/\(^\|\s\)RADIX_TREE([[:space:]]*\([[:alnum:]_]*\)/\2/v/'
195 '/\<DEFINE_PER_CPU([^,]*,[[:space:]]*\([[:alnum:]_]*\)/\1/v/'
196 '/\<DEFINE_PER_CPU_SHARED_ALIGNED([^,]*,[[:space:]]*\([[:alnum:]_]*\)/\1/v/'
197 '/\<DECLARE_WAIT_QUEUE_HEAD([[:space:]]*\([[:alnum:]_]*\)/\1/v/'
198 '/\<DECLARE_\(TASKLET\|WORK\|DELAYED_WORK\)([[:space:]]*\([[:alnum:]_]*\)/\2/v/'
199 '/\(^\s\)OFFSET([[:space:]]*\([[:alnum:]_]*\)/\2/v/'
200 '/\(^\s\)DEFINE([[:space:]]*\([[:alnum:]_]*\)/\2/v/'
201 '/\<\(DEFINE\|DECLARE\)_HASHTABLE([[:space:]]*\([[:alnum:]_]*\)/\2/v/'
202 '/\<DEFINE_ID\(R\|A\)([[:space:]]*\([[:alnum:]_]\+\)/\2/'
203 '/\<DEFINE_WD_CLASS([[:space:]]*\([[:alnum:]_]\+\)/\1/'
204 '/\<ATOMIC_NOTIFIER_HEAD([[:space:]]*\([[:alnum:]_]\+\)/\1/'
205 '/\<RAW_NOTIFIER_HEAD([[:space:]]*\([[:alnum:]_]\+\)/\1/'
206 '/\<DECLARE_FAULT_ATTR([[:space:]]*\([[:alnum:]_]\+\)/\1/'
207 '/\<BLOCKING_NOTIFIER_HEAD([[:space:]]*\([[:alnum:]_]\+\)/\1/'
208 '/\<DEVICE_ATTR_\(RW\|RO\|WO\)([[:space:]]*\([[:alnum:]_]\+\)/dev_attr_\2/'
209 '/\<DRIVER_ATTR_\(RW\|RO\|WO\)([[:space:]]*\([[:alnum:]_]\+\)/driver_attr_\2/'
210 '/\<\(DEFINE\|DECLARE\)_STATIC_KEY_\(TRUE\|FALSE\)\(\|_RO\)([[:space:]]*\([[:alnum:]_]\+\)/\4/'
211 '/^SEQCOUNT_LOCKTYPE(\([^,]*\),[[:space:]]*\([^,]*\),[^)]*)/seqcount_\2_t/'
212 '/^SEQCOUNT_LOCKTYPE(\([^,]*\),[[:space:]]*\([^,]*\),[^)]*)/seqcount_\2_init/'
213 '/^\<DECLARE_IDTENTRY[[:alnum:]_]*([^,)]*,[[:space:]]*\([[:alnum:]_]\+\)/\1/'
214 '/^\<DEFINE_IDTENTRY[[:alnum:]_]*([[:space:]]*\([[:alnum:]_]\+\)/\1/'
215)
216regex_kconfig=(
217 '/^[[:blank:]]*\(menu\|\)config[[:blank:]]\+\([[:alnum:]_]\+\)/\2/'
218 '/^[[:blank:]]*\(menu\|\)config[[:blank:]]\+\([[:alnum:]_]\+\)/CONFIG_\2/'
219)
220setup_regex()
221{
222 local mode=$1 lang tmp=() r
223 shift
224
225 regex=()
226 for lang; do
227 case "$lang" in
228 asm) tmp=("${regex_asm[@]}") ;;
229 c) tmp=("${regex_c[@]}") ;;
230 kconfig) tmp=("${regex_kconfig[@]}") ;;
231 esac
232 for r in "${tmp[@]}"; do
233 if test "$mode" = "exuberant"; then
234 regex[${#regex[@]}]="--regex-$lang=${r}b"
235 else
236 # Remove ctags /kind-spec/
237 case "$r" in
238 /*/*/?/)
239 r=${r%?/}
240 esac
241 # Prepend ^[^#] unless already anchored
242 case "$r" in
243 /^*) ;;
244 *)
245 r="/^[^#]*${r#/}"
246 esac
247 regex[${#regex[@]}]="--regex=$r"
248 fi
249 done
250 done
251}
252
253exuberant()
254{
255 CTAGS_EXTRA="extra"
256 if $1 --version 2>&1 | grep -iq universal; then
257 CTAGS_EXTRA="extras"
258 fi
259 setup_regex exuberant asm c
260 # identifiers to ignore by ctags
261 local ign=(
262 ACPI_EXPORT_SYMBOL
263 DEFINE_{TRACE,MUTEX}
264 EXPORT_SYMBOL EXPORT_SYMBOL_GPL
265 EXPORT_TRACEPOINT_SYMBOL EXPORT_TRACEPOINT_SYMBOL_GPL
266 ____cacheline_aligned ____cacheline_aligned_in_smp
267 ____cacheline_internodealigned_in_smp
268 __acquires __aligned __always_inline __always_unused
269 __attribute
270 __cacheline_aligned __cacheline_aligned_in_smp
271 __deprecated
272 __exitdata
273 __initconst __initdata __initdata_memblock
274 __maybe_unused __must_check __must_hold
275 __packed __packed2__
276 __read_mostly __refdata __releases __ro_after_init
277 __used
278 const
279 static
280 )
281 all_target_sources | \
282 xargs $1 -a -I "$(IFS=','; echo "${ign[*]}")" \
283 --$CTAGS_EXTRA=+fq --c-kinds=+px --fields=+iaS --langmap=c:+.h \
284 "${regex[@]}"
285
286 KCONFIG_ARGS=()
287 if ! $1 --list-languages | grep -iq kconfig; then
288 setup_regex exuberant kconfig
289 KCONFIG_ARGS=(--langdef=kconfig --language-force=kconfig "${regex[@]}")
290 fi
291 all_kconfigs | xargs $1 -a "${KCONFIG_ARGS[@]}"
292}
293
294emacs()
295{
296 setup_regex emacs asm c
297 all_target_sources | xargs $1 -a "${regex[@]}"
298
299 setup_regex emacs kconfig
300 all_kconfigs | xargs $1 -a "${regex[@]}"
301}
302
303xtags()
304{
305 if $1 --version 2>&1 | grep -iq exuberant; then
306 exuberant $1
307 elif $1 --version 2>&1 | grep -iq emacs; then
308 emacs $1
309 else
310 all_target_sources | xargs $1 -a
311 fi
312}
313
314# Support um (which uses SUBARCH)
315if [ "${ARCH}" = "um" ]; then
316 if [ "$SUBARCH" = "i386" ]; then
317 archinclude=x86
318 elif [ "$SUBARCH" = "x86_64" ]; then
319 archinclude=x86
320 else
321 archinclude=${SUBARCH}
322 fi
323fi
324
325remove_structs=
326case "$1" in
327 "cscope")
328 docscope
329 ;;
330
331 "gtags")
332 dogtags
333 ;;
334
335 "tags")
336 rm -f tags
337 xtags ctags
338 remove_structs=y
339 ;;
340
341 "TAGS")
342 rm -f TAGS
343 xtags etags
344 remove_structs=y
345 ;;
346esac
347
348# Remove structure forward declarations.
349if [ -n "$remove_structs" ]; then
350 LC_ALL=C sed -i -e '/^\([a-zA-Z_][a-zA-Z0-9_]*\)\t.*\t\/\^struct \1;.*\$\/;"\tx$/d' $1
351fi