writeback: fix break condition
[linux-2.6.git] / scripts / tags.sh
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, srctree, src, obj
9
10 if [ "$KBUILD_VERBOSE" = "1" ]; then
11         set -x
12 fi
13
14 # This is a duplicate of RCS_FIND_IGNORE without escaped '()'
15 ignore="( -name SCCS -o -name BitKeeper -o -name .svn -o \
16           -name CVS  -o -name .pc       -o -name .hg  -o \
17           -name .git )                                   \
18           -prune -o"
19
20 # Do not use full path is we do not use O=.. builds
21 if [ "${KBUILD_SRC}" = "" ]; then
22         tree=
23 else
24         tree=${srctree}/
25 fi
26
27 # Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
28 if [ "${ALLSOURCE_ARCHS}" = "" ]; then
29         ALLSOURCE_ARCHS=${SRCARCH}
30 fi
31
32 # find sources in arch/$ARCH
33 find_arch_sources()
34 {
35         find ${tree}arch/$1 $ignore -name "$2" -print;
36 }
37
38 # find sources in arch/$1/include
39 find_arch_include_sources()
40 {
41         find ${tree}arch/$1/include $ignore -name "$2" -print;
42 }
43
44 # find sources in include/
45 find_include_sources()
46 {
47         find ${tree}include $ignore -name config -prune -o -name "$1" -print;
48 }
49
50 # find sources in rest of tree
51 # we could benefit from a list of dirs to search in here
52 find_other_sources()
53 {
54         find ${tree}* $ignore \
55              \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
56                -name "$1" -print;
57 }
58
59 find_sources()
60 {
61         find_arch_sources $1 "$2"
62 }
63
64 all_sources()
65 {
66         for arch in $ALLSOURCE_ARCHS
67         do
68                 find_sources $arch '*.[chS]'
69         done
70         if [ ! -z "$archinclude" ]; then
71                 find_arch_include_sources $archinclude '*.[chS]'
72         fi
73         find_include_sources '*.[chS]'
74         find_other_sources '*.[chS]'
75 }
76
77 all_kconfigs()
78 {
79         find_sources $ALLSOURCE_ARCHS 'Kconfig*'
80 }
81
82 all_defconfigs()
83 {
84         find_sources $ALLSOURCE_ARCHS "defconfig"
85 }
86
87 docscope()
88 {
89         (echo \-k; echo \-q; all_sources) > cscope.files
90         cscope -b -f cscope.out
91 }
92
93 exuberant()
94 {
95         all_sources | xargs $1 -a                               \
96         -I __initdata,__exitdata,__acquires,__releases          \
97         -I __read_mostly,____cacheline_aligned                  \
98         -I ____cacheline_aligned_in_smp                         \
99         -I ____cacheline_internodealigned_in_smp                \
100         -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL                      \
101         --extra=+f --c-kinds=+px                                \
102         --regex-asm='/^ENTRY\(([^)]*)\).*/\1/'
103
104         all_kconfigs | xargs $1 -a                              \
105         --langdef=kconfig --language-force=kconfig              \
106         --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'
107
108         all_kconfigs | xargs $1 -a                              \
109         --langdef=kconfig --language-force=kconfig              \
110         --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'
111
112         all_defconfigs | xargs -r $1 -a                         \
113         --langdef=dotconfig --language-force=dotconfig          \
114         --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
115
116 }
117
118 emacs()
119 {
120         all_sources | xargs $1 -a
121
122         all_kconfigs | xargs $1 -a                              \
123         --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
124
125         all_kconfigs | xargs $1 -a                              \
126         --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'
127
128         all_defconfigs | xargs -r $1 -a                         \
129         --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
130 }
131
132 xtags()
133 {
134         if $1 --version 2>&1 | grep -iq exuberant; then
135                 exuberant $1
136         elif $1 --version 2>&1 | grep -iq emacs; then
137                 emacs $1
138         else
139                 all_sources | xargs $1 -a
140         fi
141 }
142
143
144 # Support um (which uses SUBARCH)
145 if [ "${ARCH}" = "um" ]; then
146         if [ "$SUBARCH" = "i386" ]; then
147                 archinclude=x86
148         elif [ "$SUBARCH" = "x86_64" ]; then
149                 archinclude=x86
150         else
151                 archinclude=${SUBARCH}
152         fi
153 fi
154
155 case "$1" in
156         "cscope")
157                 docscope
158                 ;;
159
160         "tags")
161                 xtags ctags
162                 ;;
163
164         "TAGS")
165                 xtags etags
166                 ;;
167 esac