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