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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 -i -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|_GLOBAL)\(([^)]*)\).*/\2/' \
133 --regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\1/' \
134 --regex-c++='/^TRACE_EVENT\(([^,)]*).*/trace_\1/' \
135 --regex-c++='/^DEFINE_EVENT\([^,)]*, *([^,)]*).*/trace_\1/' \
136 --regex-c++='/PAGEFLAG\(([^,)]*).*/Page\1/' \
137 --regex-c++='/PAGEFLAG\(([^,)]*).*/SetPage\1/' \
138 --regex-c++='/PAGEFLAG\(([^,)]*).*/ClearPage\1/' \
139 --regex-c++='/TESTSETFLAG\(([^,)]*).*/TestSetPage\1/' \
140 --regex-c++='/TESTPAGEFLAG\(([^,)]*).*/Page\1/' \
141 --regex-c++='/SETPAGEFLAG\(([^,)]*).*/SetPage\1/' \
142 --regex-c++='/__SETPAGEFLAG\(([^,)]*).*/__SetPage\1/' \
143 --regex-c++='/TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/' \
144 --regex-c++='/__TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/' \
145 --regex-c++='/CLEARPAGEFLAG\(([^,)]*).*/ClearPage\1/' \
146 --regex-c++='/__CLEARPAGEFLAG\(([^,)]*).*/__ClearPage\1/' \
147 --regex-c++='/__PAGEFLAG\(([^,)]*).*/__SetPage\1/' \
148 --regex-c++='/__PAGEFLAG\(([^,)]*).*/__ClearPage\1/' \
149 --regex-c++='/PAGEFLAG_FALSE\(([^,)]*).*/Page\1/' \
150 --regex-c++='/TESTSCFLAG\(([^,)]*).*/TestSetPage\1/' \
151 --regex-c++='/TESTSCFLAG\(([^,)]*).*/TestClearPage\1/' \
152 --regex-c++='/SETPAGEFLAG_NOOP\(([^,)]*).*/SetPage\1/' \
153 --regex-c++='/CLEARPAGEFLAG_NOOP\(([^,)]*).*/ClearPage\1/' \
154 --regex-c++='/__CLEARPAGEFLAG_NOOP\(([^,)]*).*/__ClearPage\1/' \
155 --regex-c++='/TESTCLEARFLAG_FALSE\(([^,)]*).*/TestClearPage\1/' \
156 --regex-c++='/__TESTCLEARFLAG_FALSE\(([^,)]*).*/__TestClearPage\1/'
157
158 all_kconfigs | xargs $1 -a \
159 --langdef=kconfig --language-force=kconfig \
160 --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'
161
162 all_kconfigs | xargs $1 -a \
163 --langdef=kconfig --language-force=kconfig \
164 --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'
165
166 all_defconfigs | xargs -r $1 -a \
167 --langdef=dotconfig --language-force=dotconfig \
168 --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
169}
170
171emacs()
172{
173 all_sources | xargs $1 -a \
174 --regex='/^(ENTRY|_GLOBAL)(\([^)]*\)).*/\2/' \
175 --regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/' \
176 --regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1/' \
177 --regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1/' \
178 --regex='/PAGEFLAG\(([^,)]*).*/Page\1/' \
179 --regex='/PAGEFLAG\(([^,)]*).*/SetPage\1/' \
180 --regex='/PAGEFLAG\(([^,)]*).*/ClearPage\1/' \
181 --regex='/TESTSETFLAG\(([^,)]*).*/TestSetPage\1/' \
182 --regex='/TESTPAGEFLAG\(([^,)]*).*/Page\1/' \
183 --regex='/SETPAGEFLAG\(([^,)]*).*/SetPage\1/' \
184 --regex='/__SETPAGEFLAG\(([^,)]*).*/__SetPage\1/' \
185 --regex='/TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/' \
186 --regex='/__TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/' \
187 --regex='/CLEARPAGEFLAG\(([^,)]*).*/ClearPage\1/' \
188 --regex='/__CLEARPAGEFLAG\(([^,)]*).*/__ClearPage\1/' \
189 --regex='/__PAGEFLAG\(([^,)]*).*/__SetPage\1/' \
190 --regex='/__PAGEFLAG\(([^,)]*).*/__ClearPage\1/' \
191 --regex='/PAGEFLAG_FALSE\(([^,)]*).*/Page\1/' \
192 --regex='/TESTSCFLAG\(([^,)]*).*/TestSetPage\1/' \
193 --regex='/TESTSCFLAG\(([^,)]*).*/TestClearPage\1/' \
194 --regex='/SETPAGEFLAG_NOOP\(([^,)]*).*/SetPage\1/' \
195 --regex='/CLEARPAGEFLAG_NOOP\(([^,)]*).*/ClearPage\1/' \
196 --regex='/__CLEARPAGEFLAG_NOOP\(([^,)]*).*/__ClearPage\1/' \
197 --regex='/TESTCLEARFLAG_FALSE\(([^,)]*).*/TestClearPage\1/' \
198 --regex='/__TESTCLEARFLAG_FALSE\(([^,)]*).*/__TestClearPage\1/'
199
200 all_kconfigs | xargs $1 -a \
201 --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
202
203 all_kconfigs | xargs $1 -a \
204 --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'
205
206 all_defconfigs | xargs -r $1 -a \
207 --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
208}
209
210xtags()
211{
212 if $1 --version 2>&1 | grep -iq exuberant; then
213 exuberant $1
214 elif $1 --version 2>&1 | grep -iq emacs; then
215 emacs $1
216 else
217 all_sources | xargs $1 -a
218 fi
219}
220
221
222# Support um (which uses SUBARCH)
223if [ "${ARCH}" = "um" ]; then
224 if [ "$SUBARCH" = "i386" ]; then
225 archinclude=x86
226 elif [ "$SUBARCH" = "x86_64" ]; then
227 archinclude=x86
228 else
229 archinclude=${SUBARCH}
230 fi
231fi
232
233remove_structs=
234case "$1" in
235 "cscope")
236 docscope
237 ;;
238
239 "gtags")
240 dogtags
241 ;;
242
243 "tags")
244 rm -f tags
245 xtags ctags
246 remove_structs=y
247 ;;
248
249 "TAGS")
250 rm -f TAGS
251 xtags etags
252 remove_structs=y
253 ;;
254esac
255
256# Remove structure forward declarations.
257if [ -n "$remove_structs" ]; then
258 LANG=C sed -i -e '/^\([a-zA-Z_][a-zA-Z0-9_]*\)\t.*\t\/\^struct \1;.*\$\/;"\tx$/d' $1
259fi