[linux-2.6-block.git] / scripts / tags.sh

#!/bin/bash
# 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

# RCS_FIND_IGNORE has escaped ()s -- remove them.
ignore="$(echo "$RCS_FIND_IGNORE" | sed 's|\\||g' )"
# tags and cscope files should also ignore MODVERSION *.mod.c files
ignore="$ignore ( -name *.mod.c ) -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

# ignore userspace tools
ignore="$ignore ( -path ${tree}tools ) -prune -o"

# 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 $subarchprune $prune -name "$2" \
		-not -type l -print;
}

# find sources in arch/$1/include
find_arch_include_sources()
{
	include=$(find ${tree}arch/$1/ $subarchprune \
					-name include -type d -print);
	if [ -n "$include" ]; then
		archincludedir="$archincludedir $include"
		find $include $ignore -name "$2" -not -type l -print;
	fi
}

# find sources in include/
find_include_sources()
{
	find ${tree}include $ignore -name config -prune -o -name "$1" \
		-not -type l -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" -not -type l -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_compiled_sources()
{
	for i in $(all_sources); do
		case "$i" in
			*.[cS])
				j=${i/\.[cS]/\.o}
				if [ -e $j ]; then
					echo $i
				fi
				;;
			*)
				echo $i
				;;
		esac
	done
}

all_target_sources()
{
	if [ -n "$COMPILED_SOURCE" ]; then
		all_compiled_sources
	else
		all_sources
	fi
}

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

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

dogtags()
{
	all_target_sources | gtags -i -f -
}

# Basic regular expressions with an optional /kind-spec/ for ctags and
# the following limitations:
# - No regex modifiers
# - Use \{0,1\} instead of \?, because etags expects an unescaped ?
# - \s is not working with etags, use a space or [ \t]
# - \w works, but does not match underscores in etags
# - etags regular expressions have to match at the start of a line;
#   a ^[^#] is prepended by setup_regex unless an anchor is already present
regex_asm=(
	'/^\(ENTRY\|_GLOBAL\)(\([[:alnum:]_\\]*\)).*/\2/'
)
regex_c=(
	'/^SYSCALL_DEFINE[0-9](\([[:alnum:]_]*\).*/sys_\1/'
	'/^COMPAT_SYSCALL_DEFINE[0-9](\([[:alnum:]_]*\).*/compat_sys_\1/'
	'/^TRACE_EVENT(\([[:alnum:]_]*\).*/trace_\1/'
	'/^TRACE_EVENT(\([[:alnum:]_]*\).*/trace_\1_rcuidle/'
	'/^DEFINE_EVENT([^,)]*, *\([[:alnum:]_]*\).*/trace_\1/'
	'/^DEFINE_EVENT([^,)]*, *\([[:alnum:]_]*\).*/trace_\1_rcuidle/'
	'/^DEFINE_INSN_CACHE_OPS(\([[:alnum:]_]*\).*/get_\1_slot/'
	'/^DEFINE_INSN_CACHE_OPS(\([[:alnum:]_]*\).*/free_\1_slot/'
	'/^PAGEFLAG(\([[:alnum:]_]*\).*/Page\1/'
	'/^PAGEFLAG(\([[:alnum:]_]*\).*/SetPage\1/'
	'/^PAGEFLAG(\([[:alnum:]_]*\).*/ClearPage\1/'
	'/^TESTSETFLAG(\([[:alnum:]_]*\).*/TestSetPage\1/'
	'/^TESTPAGEFLAG(\([[:alnum:]_]*\).*/Page\1/'
	'/^SETPAGEFLAG(\([[:alnum:]_]*\).*/SetPage\1/'
	'/\<__SETPAGEFLAG(\([[:alnum:]_]*\).*/__SetPage\1/'
	'/\<TESTCLEARFLAG(\([[:alnum:]_]*\).*/TestClearPage\1/'
	'/\<__TESTCLEARFLAG(\([[:alnum:]_]*\).*/TestClearPage\1/'
	'/\<CLEARPAGEFLAG(\([[:alnum:]_]*\).*/ClearPage\1/'
	'/\<__CLEARPAGEFLAG(\([[:alnum:]_]*\).*/__ClearPage\1/'
	'/^__PAGEFLAG(\([[:alnum:]_]*\).*/__SetPage\1/'
	'/^__PAGEFLAG(\([[:alnum:]_]*\).*/__ClearPage\1/'
	'/^PAGEFLAG_FALSE(\([[:alnum:]_]*\).*/Page\1/'
	'/\<TESTSCFLAG(\([[:alnum:]_]*\).*/TestSetPage\1/'
	'/\<TESTSCFLAG(\([[:alnum:]_]*\).*/TestClearPage\1/'
	'/\<SETPAGEFLAG_NOOP(\([[:alnum:]_]*\).*/SetPage\1/'
	'/\<CLEARPAGEFLAG_NOOP(\([[:alnum:]_]*\).*/ClearPage\1/'
	'/\<__CLEARPAGEFLAG_NOOP(\([[:alnum:]_]*\).*/__ClearPage\1/'
	'/\<TESTCLEARFLAG_FALSE(\([[:alnum:]_]*\).*/TestClearPage\1/'
	'/^PAGE_MAPCOUNT_OPS(\([[:alnum:]_]*\).*/Page\1/'
	'/^PAGE_MAPCOUNT_OPS(\([[:alnum:]_]*\).*/__SetPage\1/'
	'/^PAGE_MAPCOUNT_OPS(\([[:alnum:]_]*\).*/__ClearPage\1/'
	'/^TASK_PFA_TEST([^,]*, *\([[:alnum:]_]*\))/task_\1/'
	'/^TASK_PFA_SET([^,]*, *\([[:alnum:]_]*\))/task_set_\1/'
	'/^TASK_PFA_CLEAR([^,]*, *\([[:alnum:]_]*\))/task_clear_\1/'
	'/^DEF_MMIO_\(IN\|OUT\)_[XD](\([[:alnum:]_]*\),[^)]*)/\2/'
	'/^DEBUGGER_BOILERPLATE(\([[:alnum:]_]*\))/\1/'
	'/^DEF_PCI_AC_\(\|NO\)RET(\([[:alnum:]_]*\).*/\2/'
	'/^PCI_OP_READ(\(\w*\).*[1-4])/pci_bus_read_config_\1/'
	'/^PCI_OP_WRITE(\(\w*\).*[1-4])/pci_bus_write_config_\1/'
	'/\<DEFINE_\(MUTEX\|SEMAPHORE\|SPINLOCK\)(\([[:alnum:]_]*\)/\2/v/'
	'/\<DEFINE_\(RAW_SPINLOCK\|RWLOCK\|SEQLOCK\)(\([[:alnum:]_]*\)/\2/v/'
	'/\<DECLARE_\(RWSEM\|COMPLETION\)(\([[:alnum:]_]\+\)/\2/v/'
	'/\<DECLARE_BITMAP(\([[:alnum:]_]*\)/\1/v/'
	'/\(^\|\s\)\(\|L\|H\)LIST_HEAD(\([[:alnum:]_]*\)/\3/v/'
	'/\(^\|\s\)RADIX_TREE(\([[:alnum:]_]*\)/\2/v/'
	'/\<DEFINE_PER_CPU([^,]*, *\([[:alnum:]_]*\)/\1/v/'
	'/\<DEFINE_PER_CPU_SHARED_ALIGNED([^,]*, *\([[:alnum:]_]*\)/\1/v/'
	'/\<DECLARE_WAIT_QUEUE_HEAD(\([[:alnum:]_]*\)/\1/v/'
	'/\<DECLARE_\(TASKLET\|WORK\|DELAYED_WORK\)(\([[:alnum:]_]*\)/\2/v/'
	'/\(^\s\)OFFSET(\([[:alnum:]_]*\)/\2/v/'
	'/\(^\s\)DEFINE(\([[:alnum:]_]*\)/\2/v/'
	'/\<DEFINE_HASHTABLE(\([[:alnum:]_]*\)/\1/v/'
)
regex_kconfig=(
	'/^[[:blank:]]*\(menu\|\)config[[:blank:]]\+\([[:alnum:]_]\+\)/\2/'
	'/^[[:blank:]]*\(menu\|\)config[[:blank:]]\+\([[:alnum:]_]\+\)/CONFIG_\2/'
)
setup_regex()
{
	local mode=$1 lang tmp=() r
	shift

	regex=()
	for lang; do
		case "$lang" in
		asm)       tmp=("${regex_asm[@]}") ;;
		c)         tmp=("${regex_c[@]}") ;;
		kconfig)   tmp=("${regex_kconfig[@]}") ;;
		esac
		for r in "${tmp[@]}"; do
			if test "$mode" = "exuberant"; then
				regex[${#regex[@]}]="--regex-$lang=${r}b"
			else
				# Remove ctags /kind-spec/
				case "$r" in
				/*/*/?/)
					r=${r%?/}
				esac
				# Prepend ^[^#] unless already anchored
				case "$r" in
				/^*) ;;
				*)
					r="/^[^#]*${r#/}"
				esac
				regex[${#regex[@]}]="--regex=$r"
			fi
		done
	done
}

exuberant()
{
	setup_regex exuberant asm c
	all_target_sources | xargs $1 -a                        \
	-I __initdata,__exitdata,__initconst,			\
	-I __initdata_memblock					\
	-I __refdata,__attribute,__maybe_unused,__always_unused \
	-I __acquires,__releases,__deprecated			\
	-I __read_mostly,__aligned,____cacheline_aligned        \
	-I ____cacheline_aligned_in_smp                         \
	-I __cacheline_aligned,__cacheline_aligned_in_smp	\
	-I ____cacheline_internodealigned_in_smp                \
	-I __used,__packed,__packed2__,__must_check,__must_hold	\
	-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL,ACPI_EXPORT_SYMBOL   \
	-I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
	-I static,const						\
	--extra=+fq --c-kinds=+px --fields=+iaS --langmap=c:+.h \
	"${regex[@]}"

	setup_regex exuberant kconfig
	all_kconfigs | xargs $1 -a                              \
	--langdef=kconfig --language-force=kconfig "${regex[@]}"

}

emacs()
{
	setup_regex emacs asm c
	all_target_sources | xargs $1 -a "${regex[@]}"

	setup_regex emacs kconfig
	all_kconfigs | xargs $1 -a "${regex[@]}"
}

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_target_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
elif [ "${SRCARCH}" = "arm" -a "${SUBARCH}" != "" ]; then
	subarchdir=$(find ${tree}arch/$SRCARCH/ -name "mach-*" -type d -o \
							-name "plat-*" -type d);
	for i in $subarchdir; do
		case "$i" in
			*"mach-"${SUBARCH})
				;;
			*"plat-"${SUBARCH})
				;;
			*)
				subarchprune="$subarchprune \
						-wholename $i -prune -o"
				;;
		esac
	done
fi

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

	"gtags")
		dogtags
		;;

	"tags")
		rm -f tags
		xtags ctags
		remove_structs=y
		;;

	"TAGS")
		rm -f TAGS
		xtags etags
		remove_structs=y
		;;
esac

# Remove structure forward declarations.
if [ -n "$remove_structs" ]; then
    LANG=C sed -i -e '/^\([a-zA-Z_][a-zA-Z0-9_]*\)\t.*\t\/\^struct \1;.*\$\/;"\tx$/d' $1
fi
Commit	Line	Data
	1	#!/bin/bash
	2	# Generate tags or cscope files
	3	# Usage tags.sh <mode>
	4	#
	5	# mode may be any of: tags, TAGS, cscope
	6	#
	7	# Uses the following environment variables:
	8	# ARCH, SUBARCH, SRCARCH, srctree, src, obj
	9
	10	if [ "$KBUILD_VERBOSE" = "1" ]; then
	11	set -x
	12	fi
	13
	14	# RCS_FIND_IGNORE has escaped ()s -- remove them.
	15	ignore="$(echo "$RCS_FIND_IGNORE" \| sed 's\|\\\|\|g' )"
	16	# tags and cscope files should also ignore MODVERSION *.mod.c files
	17	ignore="$ignore ( -name *.mod.c ) -prune -o"
	18
	19	# Do not use full path if we do not use O=.. builds
	20	# Use make O=. {tags\|cscope}
	21	# to force full paths for a non-O= build
	22	if [ "${KBUILD_SRC}" = "" ]; then
	23	tree=
	24	else
	25	tree=${srctree}/
	26	fi
	27
	28	# ignore userspace tools
	29	ignore="$ignore ( -path ${tree}tools ) -prune -o"
	30
	31	# Find all available archs
	32	find_all_archs()
	33	{
	34	ALLSOURCE_ARCHS=""
	35	for arch in `ls ${tree}arch`; do
	36	ALLSOURCE_ARCHS="${ALLSOURCE_ARCHS} "${arch##\/}
	37	done
	38	}
	39
	40	# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
	41	if [ "${ALLSOURCE_ARCHS}" = "" ]; then
	42	ALLSOURCE_ARCHS=${SRCARCH}
	43	elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
	44	find_all_archs
	45	fi
	46
	47	# find sources in arch/$ARCH
	48	find_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/$1/include
	58	find_arch_include_sources()
	59	{
	60	include=$(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/
	69	find_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
	77	find_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
	84	find_sources()
	85	{
	86	find_arch_sources $1 "$2"
	87	}
	88
	89	all_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
	103	all_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 $i
	115	;;
	116	esac
	117	done
	118	}
	119
	120	all_target_sources()
	121	{
	122	if [ -n "$COMPILED_SOURCE" ]; then
	123	all_compiled_sources
	124	else
	125	all_sources
	126	fi
	127	}
	128
	129	all_kconfigs()
	130	{
	131	for arch in $ALLSOURCE_ARCHS; do
	132	find_sources $arch 'Kconfig*'
	133	done
	134	find_other_sources 'Kconfig*'
	135	}
	136
	137	docscope()
	138	{
	139	(echo \-k; echo \-q; all_target_sources) > cscope.files
	140	cscope -b -f cscope.out
	141	}
	142
	143	dogtags()
	144	{
	145	all_target_sources \| gtags -i -f -
	146	}
	147
	148	# Basic regular expressions with an optional /kind-spec/ for ctags and
	149	# the following limitations:
	150	# - No regex modifiers
	151	# - Use \{0,1\} instead of \?, because etags expects an unescaped ?
	152	# - \s is not working with etags, use a space or [ \t]
	153	# - \w works, but does not match underscores in etags
	154	# - etags regular expressions have to match at the start of a line;
	155	# a ^[^#] is prepended by setup_regex unless an anchor is already present
	156	regex_asm=(
	157	'/^\(ENTRY\\|_GLOBAL\)(\([[:alnum:]_\\]\))./\2/'
	158	)
	159	regex_c=(
	160	'/^SYSCALL_DEFINE[0-9](\([[:alnum:]_]\)./sys_\1/'
	161	'/^COMPAT_SYSCALL_DEFINE[0-9](\([[:alnum:]_]\)./compat_sys_\1/'
	162	'/^TRACE_EVENT(\([[:alnum:]_]\)./trace_\1/'
	163	'/^TRACE_EVENT(\([[:alnum:]_]\)./trace_\1_rcuidle/'
	164	'/^DEFINE_EVENT([^,)], \([[:alnum:]_]\)./trace_\1/'
	165	'/^DEFINE_EVENT([^,)], \([[:alnum:]_]\)./trace_\1_rcuidle/'
	166	'/^DEFINE_INSN_CACHE_OPS(\([[:alnum:]_]\)./get_\1_slot/'
	167	'/^DEFINE_INSN_CACHE_OPS(\([[:alnum:]_]\)./free_\1_slot/'
	168	'/^PAGEFLAG(\([[:alnum:]_]\)./Page\1/'
	169	'/^PAGEFLAG(\([[:alnum:]_]\)./SetPage\1/'
	170	'/^PAGEFLAG(\([[:alnum:]_]\)./ClearPage\1/'
	171	'/^TESTSETFLAG(\([[:alnum:]_]\)./TestSetPage\1/'
	172	'/^TESTPAGEFLAG(\([[:alnum:]_]\)./Page\1/'
	173	'/^SETPAGEFLAG(\([[:alnum:]_]\)./SetPage\1/'
	174	'/\<__SETPAGEFLAG(\([[:alnum:]_]\)./__SetPage\1/'
	175	'/\<TESTCLEARFLAG(\([[:alnum:]_]\)./TestClearPage\1/'
	176	'/\<__TESTCLEARFLAG(\([[:alnum:]_]\)./TestClearPage\1/'
	177	'/\<CLEARPAGEFLAG(\([[:alnum:]_]\)./ClearPage\1/'
	178	'/\<__CLEARPAGEFLAG(\([[:alnum:]_]\)./__ClearPage\1/'
	179	'/^__PAGEFLAG(\([[:alnum:]_]\)./__SetPage\1/'
	180	'/^__PAGEFLAG(\([[:alnum:]_]\)./__ClearPage\1/'
	181	'/^PAGEFLAG_FALSE(\([[:alnum:]_]\)./Page\1/'
	182	'/\<TESTSCFLAG(\([[:alnum:]_]\)./TestSetPage\1/'
	183	'/\<TESTSCFLAG(\([[:alnum:]_]\)./TestClearPage\1/'
	184	'/\<SETPAGEFLAG_NOOP(\([[:alnum:]_]\)./SetPage\1/'
	185	'/\<CLEARPAGEFLAG_NOOP(\([[:alnum:]_]\)./ClearPage\1/'
	186	'/\<__CLEARPAGEFLAG_NOOP(\([[:alnum:]_]\)./__ClearPage\1/'
	187	'/\<TESTCLEARFLAG_FALSE(\([[:alnum:]_]\)./TestClearPage\1/'
	188	'/^PAGE_MAPCOUNT_OPS(\([[:alnum:]_]\)./Page\1/'
	189	'/^PAGE_MAPCOUNT_OPS(\([[:alnum:]_]\)./__SetPage\1/'
	190	'/^PAGE_MAPCOUNT_OPS(\([[:alnum:]_]\)./__ClearPage\1/'
	191	'/^TASK_PFA_TEST([^,], \([[:alnum:]_]*\))/task_\1/'
	192	'/^TASK_PFA_SET([^,], \([[:alnum:]_]*\))/task_set_\1/'
	193	'/^TASK_PFA_CLEAR([^,], \([[:alnum:]_]*\))/task_clear_\1/'
	194	'/^DEF_MMIO_\(IN\\|OUT\)_[XD](\([[:alnum:]_]\),[^)])/\2/'
	195	'/^DEBUGGER_BOILERPLATE(\([[:alnum:]_]*\))/\1/'
	196	'/^DEF_PCI_AC_\(\\|NO\)RET(\([[:alnum:]_]\)./\2/'
	197	'/^PCI_OP_READ(\(\w\).[1-4])/pci_bus_read_config_\1/'
	198	'/^PCI_OP_WRITE(\(\w\).[1-4])/pci_bus_write_config_\1/'
	199	'/\<DEFINE_\(MUTEX\\|SEMAPHORE\\|SPINLOCK\)(\([[:alnum:]_]*\)/\2/v/'
	200	'/\<DEFINE_\(RAW_SPINLOCK\\|RWLOCK\\|SEQLOCK\)(\([[:alnum:]_]*\)/\2/v/'
	201	'/\<DECLARE_\(RWSEM\\|COMPLETION\)(\([[:alnum:]_]\+\)/\2/v/'
	202	'/\<DECLARE_BITMAP(\([[:alnum:]_]*\)/\1/v/'
	203	'/\(^\\|\s\)\(\\|L\\|H\)LIST_HEAD(\([[:alnum:]_]*\)/\3/v/'
	204	'/\(^\\|\s\)RADIX_TREE(\([[:alnum:]_]*\)/\2/v/'
	205	'/\<DEFINE_PER_CPU([^,], \([[:alnum:]_]*\)/\1/v/'
	206	'/\<DEFINE_PER_CPU_SHARED_ALIGNED([^,], \([[:alnum:]_]*\)/\1/v/'
	207	'/\<DECLARE_WAIT_QUEUE_HEAD(\([[:alnum:]_]*\)/\1/v/'
	208	'/\<DECLARE_\(TASKLET\\|WORK\\|DELAYED_WORK\)(\([[:alnum:]_]*\)/\2/v/'
	209	'/\(^\s\)OFFSET(\([[:alnum:]_]*\)/\2/v/'
	210	'/\(^\s\)DEFINE(\([[:alnum:]_]*\)/\2/v/'
	211	'/\<DEFINE_HASHTABLE(\([[:alnum:]_]*\)/\1/v/'
	212	)
	213	regex_kconfig=(
	214	'/^[[:blank:]]*\(menu\\|\)config[[:blank:]]\+\([[:alnum:]_]\+\)/\2/'
	215	'/^[[:blank:]]*\(menu\\|\)config[[:blank:]]\+\([[:alnum:]_]\+\)/CONFIG_\2/'
	216	)
	217	setup_regex()
	218	{
	219	local mode=$1 lang tmp=() r
	220	shift
	221
	222	regex=()
	223	for lang; do
	224	case "$lang" in
	225	asm) tmp=("${regex_asm[@]}") ;;
	226	c) tmp=("${regex_c[@]}") ;;
	227	kconfig) tmp=("${regex_kconfig[@]}") ;;
	228	esac
	229	for r in "${tmp[@]}"; do
	230	if test "$mode" = "exuberant"; then
	231	regex[${#regex[@]}]="--regex-$lang=${r}b"
	232	else
	233	# Remove ctags /kind-spec/
	234	case "$r" in
	235	///?/)
	236	r=${r%?/}
	237	esac
	238	# Prepend ^[^#] unless already anchored
	239	case "$r" in
	240	/^*) ;;
	241	*)
	242	r="/^[^#]*${r#/}"
	243	esac
	244	regex[${#regex[@]}]="--regex=$r"
	245	fi
	246	done
	247	done
	248	}
	249
	250	exuberant()
	251	{
	252	setup_regex exuberant asm c
	253	all_target_sources \| xargs $1 -a \
	254	-I __initdata,__exitdata,__initconst, \
	255	-I __initdata_memblock \
	256	-I __refdata,__attribute,__maybe_unused,__always_unused \
	257	-I __acquires,__releases,__deprecated \
	258	-I __read_mostly,__aligned,____cacheline_aligned \
	259	-I ____cacheline_aligned_in_smp \
	260	-I __cacheline_aligned,__cacheline_aligned_in_smp \
	261	-I ____cacheline_internodealigned_in_smp \
	262	-I __used,__packed,__packed2__,__must_check,__must_hold \
	263	-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL,ACPI_EXPORT_SYMBOL \
	264	-I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
	265	-I static,const \
	266	--extra=+fq --c-kinds=+px --fields=+iaS --langmap=c:+.h \
	267	"${regex[@]}"
	268
	269	setup_regex exuberant kconfig
	270	all_kconfigs \| xargs $1 -a \
	271	--langdef=kconfig --language-force=kconfig "${regex[@]}"
	272
	273	}
	274
	275	emacs()
	276	{
	277	setup_regex emacs asm c
	278	all_target_sources \| xargs $1 -a "${regex[@]}"
	279
	280	setup_regex emacs kconfig
	281	all_kconfigs \| xargs $1 -a "${regex[@]}"
	282	}
	283
	284	xtags()
	285	{
	286	if $1 --version 2>&1 \| grep -iq exuberant; then
	287	exuberant $1
	288	elif $1 --version 2>&1 \| grep -iq emacs; then
	289	emacs $1
	290	else
	291	all_target_sources \| xargs $1 -a
	292	fi
	293	}
	294
	295	# Support um (which uses SUBARCH)
	296	if [ "${ARCH}" = "um" ]; then
	297	if [ "$SUBARCH" = "i386" ]; then
	298	archinclude=x86
	299	elif [ "$SUBARCH" = "x86_64" ]; then
	300	archinclude=x86
	301	else
	302	archinclude=${SUBARCH}
	303	fi
	304	elif [ "${SRCARCH}" = "arm" -a "${SUBARCH}" != "" ]; then
	305	subarchdir=$(find ${tree}arch/$SRCARCH/ -name "mach-*" -type d -o \
	306	-name "plat-*" -type d);
	307	for i in $subarchdir; do
	308	case "$i" in
	309	*"mach-"${SUBARCH})
	310	;;
	311	*"plat-"${SUBARCH})
	312	;;
	313	*)
	314	subarchprune="$subarchprune \
	315	-wholename $i -prune -o"
	316	;;
	317	esac
	318	done
	319	fi
	320
	321	remove_structs=
	322	case "$1" in
	323	"cscope")
	324	docscope
	325	;;
	326
	327	"gtags")
	328	dogtags
	329	;;
	330
	331	"tags")
	332	rm -f tags
	333	xtags ctags
	334	remove_structs=y
	335	;;
	336
	337	"TAGS")
	338	rm -f TAGS
	339	xtags etags
	340	remove_structs=y
	341	;;
	342	esac
	343
	344	# Remove structure forward declarations.
	345	if [ -n "$remove_structs" ]; then
	346	LANG=C sed -i -e '/^\([a-zA-Z_][a-zA-Z0-9_]\)\t.\t\/\^struct \1;.*\$\/;"\tx$/d' $1
	347	fi