Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
117exuberant()
118{
119 all_sources | xargs $1 -a \
120 -I __initdata,__exitdata,__acquires,__releases \
121 -I __read_mostly,____cacheline_aligned \
122 -I ____cacheline_aligned_in_smp \
123 -I ____cacheline_internodealigned_in_smp \
124 -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
125 -I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
126 --extra=+f --c-kinds=-px \
127 --regex-asm='/^ENTRY\(([^)]*)\).*/\1/' \
128 --regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\1/'
129
130 all_kconfigs | xargs $1 -a \
131 --langdef=kconfig --language-force=kconfig \
132 --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'
133
134 all_kconfigs | xargs $1 -a \
135 --langdef=kconfig --language-force=kconfig \
136 --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'
137
138 all_defconfigs | xargs -r $1 -a \
139 --langdef=dotconfig --language-force=dotconfig \
140 --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
141
142}
143
144emacs()
145{
146 all_sources | xargs $1 -a \
147 --regex='/^ENTRY(\([^)]*\)).*/\1/' \
148 --regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/'
149
150 all_kconfigs | xargs $1 -a \
151 --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
152
153 all_kconfigs | xargs $1 -a \
154 --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'
155
156 all_defconfigs | xargs -r $1 -a \
157 --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
158}
159
160xtags()
161{
162 if $1 --version 2>&1 | grep -iq exuberant; then
163 exuberant $1
164 elif $1 --version 2>&1 | grep -iq emacs; then
165 emacs $1
166 else
167 all_sources | xargs $1 -a
168 fi
169}
170
171
172# Support um (which uses SUBARCH)
173if [ "${ARCH}" = "um" ]; then
174 if [ "$SUBARCH" = "i386" ]; then
175 archinclude=x86
176 elif [ "$SUBARCH" = "x86_64" ]; then
177 archinclude=x86
178 else
179 archinclude=${SUBARCH}
180 fi
181fi
182
183case "$1" in
184 "cscope")
185 docscope
186 ;;
187
188 "tags")
189 rm -f tags
190 xtags ctags
191 ;;
192
193 "TAGS")
194 rm -f TAGS
195 xtags etags
196 ;;
197esac