xref: /openbmc/linux/scripts/tags.sh (revision b85d4594) 
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 [ "$KBUILD_VERBOSE" = "1" ]; then
11	set -x
12fi
13
14# RCS_FIND_IGNORE has escaped ()s -- remove them.
15ignore="$(echo "$RCS_FIND_IGNORE" | sed 's|\\||g' )"
16# tags and cscope files should also ignore MODVERSION *.mod.c files
17ignore="$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
22if [ "${KBUILD_SRC}" = "" ]; then
23	tree=
24else
25	tree=${srctree}/
26fi
27
28# ignore userspace tools
29ignore="$ignore ( -path ${tree}tools ) -prune -o"
30
31# Find all available archs
32find_all_archs()
33{
34	ALLSOURCE_ARCHS=""
35	for arch in `ls ${tree}arch`; do
36		ALLSOURCE_ARCHS="${ALLSOURCE_ARCHS} "${arch##\/}
37	done
38}
39
40# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
41if [ "${ALLSOURCE_ARCHS}" = "" ]; then
42	ALLSOURCE_ARCHS=${SRCARCH}
43elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
44	find_all_archs
45fi
46
47# find sources in arch/$ARCH
48find_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/$1/include
58find_arch_include_sources()
59{
60	include=$(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/
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	     \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
81	       -name "$1" -not -type l -print;
82}
83
84find_sources()
85{
86	find_arch_sources $1 "$2"
87}
88
89all_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
103all_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 $i
115				;;
116		esac
117	done
118}
119
120all_target_sources()
121{
122	if [ -n "$COMPILED_SOURCE" ]; then
123		all_compiled_sources
124	else
125		all_sources
126	fi
127}
128
129all_kconfigs()
130{
131	for arch in $ALLSOURCE_ARCHS; do
132		find_sources $arch 'Kconfig*'
133	done
134	find_other_sources 'Kconfig*'
135}
136
137all_defconfigs()
138{
139	find_sources $ALLSOURCE_ARCHS "defconfig"
140}
141
142docscope()
143{
144	(echo \-k; echo \-q; all_target_sources) > cscope.files
145	cscope -b -f cscope.out
146}
147
148dogtags()
149{
150	all_target_sources | gtags -i -f -
151}
152
153exuberant()
154{
155	all_target_sources | xargs $1 -a                        \
156	-I __initdata,__exitdata,__initconst,			\
157	-I __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='/^COMPAT_SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/compat_sys_\1/' \
172	--regex-c++='/^TRACE_EVENT\(([^,)]*).*/trace_\1/'		\
173	--regex-c++='/^TRACE_EVENT\(([^,)]*).*/trace_\1_rcuidle/'	\
174	--regex-c++='/^DEFINE_EVENT\([^,)]*, *([^,)]*).*/trace_\1/'	\
175	--regex-c++='/^DEFINE_EVENT\([^,)]*, *([^,)]*).*/trace_\1_rcuidle/' \
176	--regex-c++='/PAGEFLAG\(([^,)]*).*/Page\1/'			\
177	--regex-c++='/PAGEFLAG\(([^,)]*).*/SetPage\1/'			\
178	--regex-c++='/PAGEFLAG\(([^,)]*).*/ClearPage\1/'		\
179	--regex-c++='/TESTSETFLAG\(([^,)]*).*/TestSetPage\1/'		\
180	--regex-c++='/TESTPAGEFLAG\(([^,)]*).*/Page\1/'			\
181	--regex-c++='/SETPAGEFLAG\(([^,)]*).*/SetPage\1/'		\
182	--regex-c++='/__SETPAGEFLAG\(([^,)]*).*/__SetPage\1/'		\
183	--regex-c++='/TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/'	\
184	--regex-c++='/__TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/'	\
185	--regex-c++='/CLEARPAGEFLAG\(([^,)]*).*/ClearPage\1/'		\
186	--regex-c++='/__CLEARPAGEFLAG\(([^,)]*).*/__ClearPage\1/'	\
187	--regex-c++='/__PAGEFLAG\(([^,)]*).*/__SetPage\1/'		\
188	--regex-c++='/__PAGEFLAG\(([^,)]*).*/__ClearPage\1/'		\
189	--regex-c++='/PAGEFLAG_FALSE\(([^,)]*).*/Page\1/'		\
190	--regex-c++='/TESTSCFLAG\(([^,)]*).*/TestSetPage\1/'		\
191	--regex-c++='/TESTSCFLAG\(([^,)]*).*/TestClearPage\1/'		\
192	--regex-c++='/SETPAGEFLAG_NOOP\(([^,)]*).*/SetPage\1/'		\
193	--regex-c++='/CLEARPAGEFLAG_NOOP\(([^,)]*).*/ClearPage\1/'	\
194	--regex-c++='/__CLEARPAGEFLAG_NOOP\(([^,)]*).*/__ClearPage\1/'	\
195	--regex-c++='/TESTCLEARFLAG_FALSE\(([^,)]*).*/TestClearPage\1/' \
196	--regex-c++='/__TESTCLEARFLAG_FALSE\(([^,)]*).*/__TestClearPage\1/' \
197	--regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'		\
198	--regex-c++='/TASK_PFA_TEST\([^,]*,\s*([^)]*)\)/task_\1/'	\
199	--regex-c++='/TASK_PFA_SET\([^,]*,\s*([^)]*)\)/task_set_\1/'	\
200	--regex-c++='/TASK_PFA_CLEAR\([^,]*,\s*([^)]*)\)/task_clear_\1/'\
201	--regex-c='/PCI_OP_READ\((\w*).*[1-4]\)/pci_bus_read_config_\1/' \
202	--regex-c='/PCI_OP_WRITE\((\w*).*[1-4]\)/pci_bus_write_config_\1/' \
203	--regex-c='/DEFINE_(MUTEX|SEMAPHORE|SPINLOCK)\((\w*)/\2/v/'	\
204	--regex-c='/DEFINE_(RAW_SPINLOCK|RWLOCK|SEQLOCK)\((\w*)/\2/v/'	\
205	--regex-c='/DECLARE_(RWSEM|COMPLETION)\((\w*)/\2/v/'		\
206	--regex-c='/DECLARE_BITMAP\((\w*)/\1/v/'			\
207	--regex-c='/(^|\s)(|L|H)LIST_HEAD\((\w*)/\3/v/'			\
208	--regex-c='/(^|\s)RADIX_TREE\((\w*)/\2/v/'			\
209	--regex-c='/DEFINE_PER_CPU\(([^,]*,\s*)(\w*).*\)/\2/v/'		\
210	--regex-c='/DEFINE_PER_CPU_SHARED_ALIGNED\(([^,]*,\s*)(\w*).*\)/\2/v/' \
211	--regex-c='/DECLARE_WAIT_QUEUE_HEAD\((\w*)/\1/v/'		\
212	--regex-c='/DECLARE_(TASKLET|WORK|DELAYED_WORK)\((\w*)/\2/v/'	\
213	--regex-c='/DEFINE_PCI_DEVICE_TABLE\((\w*)/\1/v/'		\
214	--regex-c='/(^\s)OFFSET\((\w*)/\2/v/'				\
215	--regex-c='/(^\s)DEFINE\((\w*)/\2/v/'				\
216	--regex-c='/DEFINE_HASHTABLE\((\w*)/\1/v/'
217
218	all_kconfigs | xargs $1 -a                              \
219	--langdef=kconfig --language-force=kconfig              \
220	--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'
221
222	all_kconfigs | xargs $1 -a                              \
223	--langdef=kconfig --language-force=kconfig              \
224	--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'
225
226	all_defconfigs | xargs -r $1 -a                         \
227	--langdef=dotconfig --language-force=dotconfig          \
228	--regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
229}
230
231emacs()
232{
233	all_target_sources | xargs $1 -a                        \
234	--regex='/^\(ENTRY\|_GLOBAL\)(\([^)]*\)).*/\2/'         \
235	--regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/'   \
236	--regex='/^COMPAT_SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/compat_sys_\1/' \
237	--regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1/'		\
238	--regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1_rcuidle/'	\
239	--regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1/' \
240	--regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1_rcuidle/' \
241	--regex='/PAGEFLAG(\([^,)]*\).*/Page\1/'			\
242	--regex='/PAGEFLAG(\([^,)]*\).*/SetPage\1/'		\
243	--regex='/PAGEFLAG(\([^,)]*\).*/ClearPage\1/'		\
244	--regex='/TESTSETFLAG(\([^,)]*\).*/TestSetPage\1/'	\
245	--regex='/TESTPAGEFLAG(\([^,)]*\).*/Page\1/'		\
246	--regex='/SETPAGEFLAG(\([^,)]*\).*/SetPage\1/'		\
247	--regex='/__SETPAGEFLAG(\([^,)]*\).*/__SetPage\1/'	\
248	--regex='/TESTCLEARFLAG(\([^,)]*\).*/TestClearPage\1/'	\
249	--regex='/__TESTCLEARFLAG(\([^,)]*\).*/TestClearPage\1/'	\
250	--regex='/CLEARPAGEFLAG(\([^,)]*\).*/ClearPage\1/'	\
251	--regex='/__CLEARPAGEFLAG(\([^,)]*\).*/__ClearPage\1/'	\
252	--regex='/__PAGEFLAG(\([^,)]*\).*/__SetPage\1/'		\
253	--regex='/__PAGEFLAG(\([^,)]*\).*/__ClearPage\1/'	\
254	--regex='/PAGEFLAG_FALSE(\([^,)]*\).*/Page\1/'		\
255	--regex='/TESTSCFLAG(\([^,)]*\).*/TestSetPage\1/'	\
256	--regex='/TESTSCFLAG(\([^,)]*\).*/TestClearPage\1/'	\
257	--regex='/SETPAGEFLAG_NOOP(\([^,)]*\).*/SetPage\1/'	\
258	--regex='/CLEARPAGEFLAG_NOOP(\([^,)]*\).*/ClearPage\1/'	\
259	--regex='/__CLEARPAGEFLAG_NOOP(\([^,)]*\).*/__ClearPage\1/' \
260	--regex='/TESTCLEARFLAG_FALSE(\([^,)]*\).*/TestClearPage\1/' \
261	--regex='/__TESTCLEARFLAG_FALSE(\([^,)]*\).*/__TestClearPage\1/' \
262	--regex='/TASK_PFA_TEST\([^,]*,\s*([^)]*)\)/task_\1/'		\
263	--regex='/TASK_PFA_SET\([^,]*,\s*([^)]*)\)/task_set_\1/'	\
264	--regex='/TASK_PFA_CLEAR\([^,]*,\s*([^)]*)\)/task_clear_\1/'	\
265	--regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'		\
266	--regex='/PCI_OP_READ(\([a-z]*[a-z]\).*[1-4])/pci_bus_read_config_\1/' \
267	--regex='/PCI_OP_WRITE(\([a-z]*[a-z]\).*[1-4])/pci_bus_write_config_\1/'\
268	--regex='/[^#]*DEFINE_HASHTABLE(\([^,)]*\)/\1/'
269
270	all_kconfigs | xargs $1 -a                              \
271	--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
272
273	all_kconfigs | xargs $1 -a                              \
274	--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'
275
276	all_defconfigs | xargs -r $1 -a                         \
277	--regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
278}
279
280xtags()
281{
282	if $1 --version 2>&1 | grep -iq exuberant; then
283		exuberant $1
284	elif $1 --version 2>&1 | grep -iq emacs; then
285		emacs $1
286	else
287		all_target_sources | xargs $1 -a
288	fi
289}
290
291# Support um (which uses SUBARCH)
292if [ "${ARCH}" = "um" ]; then
293	if [ "$SUBARCH" = "i386" ]; then
294		archinclude=x86
295	elif [ "$SUBARCH" = "x86_64" ]; then
296		archinclude=x86
297	else
298		archinclude=${SUBARCH}
299	fi
300elif [ "${SRCARCH}" = "arm" -a "${SUBARCH}" != "" ]; then
301	subarchdir=$(find ${tree}arch/$SRCARCH/ -name "mach-*" -type d -o \
302							-name "plat-*" -type d);
303	for i in $subarchdir; do
304		case "$i" in
305			*"mach-"${SUBARCH})
306				;;
307			*"plat-"${SUBARCH})
308				;;
309			*)
310				subarchprune="$subarchprune \
311						-wholename $i -prune -o"
312				;;
313		esac
314	done
315fi
316
317remove_structs=
318case "$1" in
319	"cscope")
320		docscope
321		;;
322
323	"gtags")
324		dogtags
325		;;
326
327	"tags")
328		rm -f tags
329		xtags ctags
330		remove_structs=y
331		;;
332
333	"TAGS")
334		rm -f TAGS
335		xtags etags
336		remove_structs=y
337		;;
338esac
339
340# Remove structure forward declarations.
341if [ -n "$remove_structs" ]; then
342    LANG=C sed -i -e '/^\([a-zA-Z_][a-zA-Z0-9_]*\)\t.*\t\/\^struct \1;.*\$\/;"\tx$/d' $1
343fi
344