summaryrefslogtreecommitdiffstats
path: root/scripts/tags.sh
blob: bbbe584d44943077a41b22684b5ecdbce18f532a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
#!/bin/sh
# Generate tags or cscope files
# Usage tags.sh <mode>
#
# mode may be any of: tags, TAGS, cscope
#
# Uses the following environment variables:
# ARCH, SUBARCH, SRCARCH, srctree, src, obj

if [ "$KBUILD_VERBOSE" = "1" ]; then
	set -x
fi

# This is a duplicate of RCS_FIND_IGNORE without escaped '()'
ignore="( -name SCCS -o -name BitKeeper -o -name .svn -o \
          -name CVS  -o -name .pc       -o -name .hg  -o \
          -name .git )                                   \
          -prune -o"

# Do not use full path if we do not use O=.. builds
# Use make O=. {tags|cscope}
# to force full paths for a non-O= build
if [ "${KBUILD_SRC}" = "" ]; then
	tree=
else
	tree=${srctree}/
fi

# Find all available archs
find_all_archs()
{
	ALLSOURCE_ARCHS=""
	for arch in `ls ${tree}arch`; do
		ALLSOURCE_ARCHS="${ALLSOURCE_ARCHS} "${arch##\/}
	done
}

# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
if [ "${ALLSOURCE_ARCHS}" = "" ]; then
	ALLSOURCE_ARCHS=${SRCARCH}
elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
	find_all_archs
fi

# find sources in arch/$ARCH
find_arch_sources()
{
	for i in $archincludedir; do
		prune="$prune -wholename $i -prune -o"
	done
	find ${tree}arch/$1 $ignore $prune -name "$2" -print;
}

# find sources in arch/$1/include
find_arch_include_sources()
{
	include=$(find ${tree}arch/$1/ -name include -type d);
	if [ -n "$include" ]; then
		archincludedir="$archincludedir $include"
		find $include $ignore -name "$2" -print;
	fi
}

# find sources in include/
find_include_sources()
{
	find ${tree}include $ignore -name config -prune -o -name "$1" -print;
}

# find sources in rest of tree
# we could benefit from a list of dirs to search in here
find_other_sources()
{
	find ${tree}* $ignore \
	     \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
	       -name "$1" -print;
}

find_sources()
{
	find_arch_sources $1 "$2"
}

all_sources()
{
	find_arch_include_sources ${SRCARCH} '*.[chS]'
	if [ ! -z "$archinclude" ]; then
		find_arch_include_sources $archinclude '*.[chS]'
	fi
	find_include_sources '*.[chS]'
	for arch in $ALLSOURCE_ARCHS
	do
		find_sources $arch '*.[chS]'
	done
	find_other_sources '*.[chS]'
}

all_kconfigs()
{
	for arch in $ALLSOURCE_ARCHS; do
		find_sources $arch 'Kconfig*'
	done
	find_other_sources 'Kconfig*'
}

all_defconfigs()
{
	find_sources $ALLSOURCE_ARCHS "defconfig"
}

docscope()
{
	(echo \-k; echo \-q; all_sources) > cscope.files
	cscope -b -f cscope.out
}

exuberant()
{
	all_sources | xargs $1 -a                               \
	-I __initdata,__exitdata,__acquires,__releases          \
	-I __read_mostly,____cacheline_aligned                  \
	-I ____cacheline_aligned_in_smp                         \
	-I ____cacheline_internodealigned_in_smp                \
	-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL                      \
	-I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
	--extra=+f --c-kinds=-px                                \
	--regex-asm='/^ENTRY\(([^)]*)\).*/\1/'                  \
	--regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\1/' \
	--regex-c++='/^TRACE_EVENT\(([^,)]*).*/trace_\1/'		\
	--regex-c++='/^DEFINE_EVENT\(([^,)]*).*/trace_\1/'

	all_kconfigs | xargs $1 -a                              \
	--langdef=kconfig --language-force=kconfig              \
	--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'

	all_kconfigs | xargs $1 -a                              \
	--langdef=kconfig --language-force=kconfig              \
	--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'

	all_defconfigs | xargs -r $1 -a                         \
	--langdef=dotconfig --language-force=dotconfig          \
	--regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'

}

emacs()
{
	all_sources | xargs $1 -a                               \
	--regex='/^ENTRY(\([^)]*\)).*/\1/'                      \
	--regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/'

	all_kconfigs | xargs $1 -a                              \
	--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'

	all_kconfigs | xargs $1 -a                              \
	--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'

	all_defconfigs | xargs -r $1 -a                         \
	--regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
}

xtags()
{
	if $1 --version 2>&1 | grep -iq exuberant; then
		exuberant $1
	elif $1 --version 2>&1 | grep -iq emacs; then
		emacs $1
	else
		all_sources | xargs $1 -a
        fi
}


# Support um (which uses SUBARCH)
if [ "${ARCH}" = "um" ]; then
	if [ "$SUBARCH" = "i386" ]; then
		archinclude=x86
	elif [ "$SUBARCH" = "x86_64" ]; then
		archinclude=x86
	else
		archinclude=${SUBARCH}
	fi
fi

case "$1" in
	"cscope")
		docscope
		;;

	"tags")
		rm -f tags
		xtags ctags
		;;

	"TAGS")
		rm -f TAGS
		xtags etags
		;;
esac