[thirdparty/kernel/linux.git] / scripts / tags.sh

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0-only
# Generate tags or cscope files
# Usage tags.sh <mode>
#
# mode may be any of: tags, gtags, TAGS, cscope
#
# Uses the following environment variables:
# SUBARCH, SRCARCH, srctree

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"

# ignore arbitrary directories
if [ -n "${IGNORE_DIRS}" ]; then
	for i in ${IGNORE_DIRS}; do
		ignore="${ignore} ( -path $i ) -prune -o"
	done
fi

# Use make KBUILD_ABS_SRCTREE=1 {tags|cscope}
# to force full paths for a non-O= build
if [ "${srctree}" = "." -o -z "${srctree}" ]; then
	tree=
else
	tree=${srctree}/
fi

# gtags(1) refuses to index any file outside of its current working dir.
# If gtags indexing is requested and the build output directory is not
# the kernel source tree, index all files in absolute-path form.
if [[ "$1" == "gtags" && -n "${tree}" ]]; then
	tree=$(realpath "$tree")/
fi

# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
if [ "${ALLSOURCE_ARCHS}" = "" ]; then
	ALLSOURCE_ARCHS=${SRCARCH}
elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
	ALLSOURCE_ARCHS=$(find ${tree}arch/ -mindepth 1 -maxdepth 1 -type d -printf '%f ')
fi

# find sources in arch/$1
find_arch_sources()
{
	for i in $archincludedir; do
		prune="$prune ( -path $i ) -prune -o"
	done
	find ${tree}arch/$1 $ignore $prune -name "$2" -not -type l -print;
}

# find sources in arch/$1/include
find_arch_include_sources()
{
	include=$(find ${tree}arch/$1/ -name include -type d -print);
	if [ -n "$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 \
	     \( -path ${tree}include -o -path ${tree}arch -o -name '.tmp_*' \) -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()
{
	{
		echo include/generated/autoconf.h
		find $ignore -name "*.cmd" -exec \
			grep -Poh '(?<=^  )\S+|(?<== )\S+[^\\](?=$)' {} \+ |
		awk '!a[$0]++'
	} | xargs realpath -esq $([ -z "$KBUILD_ABS_SRCTREE" ] && echo --relative-to=.) |
	sort -u
}

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

all_kconfigs()
{
	find ${tree}arch/ -maxdepth 1 $ignore \
	       -name "Kconfig*" -not -type l -print;
	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 -C "${tree:-.}" -f - "$PWD"
}

# 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=(
	'/^\(ENTRY\|_GLOBAL\)([[:space:]]*\([[:alnum:]_\\]*\)).*/\2/'
)
regex_c=(
	'/^SYSCALL_DEFINE[0-9]([[:space:]]*\([[:alnum:]_]*\).*/sys_\1/'
	'/^BPF_CALL_[0-9]([[:space:]]*\([[:alnum:]_]*\).*/\1/'
	'/^COMPAT_SYSCALL_DEFINE[0-9]([[:space:]]*\([[:alnum:]_]*\).*/compat_sys_\1/'
	'/^TRACE_EVENT([[:space:]]*\([[:alnum:]_]*\).*/trace_\1/'
	'/^TRACE_EVENT([[:space:]]*\([[:alnum:]_]*\).*/trace_\1_rcuidle/'
	'/^DEFINE_EVENT([^,)]*,[[:space:]]*\([[:alnum:]_]*\).*/trace_\1/'
	'/^DEFINE_EVENT([^,)]*,[[:space:]]*\([[:alnum:]_]*\).*/trace_\1_rcuidle/'
	'/^DEFINE_INSN_CACHE_OPS([[:space:]]*\([[:alnum:]_]*\).*/get_\1_slot/'
	'/^DEFINE_INSN_CACHE_OPS([[:space:]]*\([[:alnum:]_]*\).*/free_\1_slot/'
	'/^PAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/Page\1/'
	'/^PAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/SetPage\1/'
	'/^PAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/ClearPage\1/'
	'/^TESTSETFLAG([[:space:]]*\([[:alnum:]_]*\).*/TestSetPage\1/'
	'/^TESTPAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/Page\1/'
	'/^SETPAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/SetPage\1/'
	'/\<__SETPAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/__SetPage\1/'
	'/\<TESTCLEARFLAG([[:space:]]*\([[:alnum:]_]*\).*/TestClearPage\1/'
	'/\<__TESTCLEARFLAG([[:space:]]*\([[:alnum:]_]*\).*/TestClearPage\1/'
	'/\<CLEARPAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/ClearPage\1/'
	'/\<__CLEARPAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/__ClearPage\1/'
	'/^__PAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/__SetPage\1/'
	'/^__PAGEFLAG([[:space:]]*\([[:alnum:]_]*\).*/__ClearPage\1/'
	'/^PAGEFLAG_FALSE([[:space:]]*\([[:alnum:]_]*\).*/Page\1/'
	'/\<TESTSCFLAG([[:space:]]*\([[:alnum:]_]*\).*/TestSetPage\1/'
	'/\<TESTSCFLAG([[:space:]]*\([[:alnum:]_]*\).*/TestClearPage\1/'
	'/\<SETPAGEFLAG_NOOP([[:space:]]*\([[:alnum:]_]*\).*/SetPage\1/'
	'/\<CLEARPAGEFLAG_NOOP([[:space:]]*\([[:alnum:]_]*\).*/ClearPage\1/'
	'/\<__CLEARPAGEFLAG_NOOP([[:space:]]*\([[:alnum:]_]*\).*/__ClearPage\1/'
	'/\<TESTCLEARFLAG_FALSE([[:space:]]*\([[:alnum:]_]*\).*/TestClearPage\1/'
	'/^PAGE_TYPE_OPS([[:space:]]*\([[:alnum:]_]*\).*/Page\1/'
	'/^PAGE_TYPE_OPS([[:space:]]*\([[:alnum:]_]*\).*/__SetPage\1/'
	'/^PAGE_TYPE_OPS([[:space:]]*\([[:alnum:]_]*\).*/__ClearPage\1/'
	'/^TASK_PFA_TEST([^,]*,[[:space:]]*\([[:alnum:]_]*\))/task_\1/'
	'/^TASK_PFA_SET([^,]*,[[:space:]]*\([[:alnum:]_]*\))/task_set_\1/'
	'/^TASK_PFA_CLEAR([^,]*,[[:space:]]*\([[:alnum:]_]*\))/task_clear_\1/'
	'/^DEF_MMIO_\(IN\|OUT\)_[XD]([[:space:]]*\([[:alnum:]_]*\),[^)]*)/\2/'
	'/^DEBUGGER_BOILERPLATE([[:space:]]*\([[:alnum:]_]*\))/\1/'
	'/^DEF_PCI_AC_\(\|NO\)RET([[:space:]]*\([[:alnum:]_]*\).*/\2/'
	'/^PCI_OP_READ([[:space:]]*\(\w*\).*[1-4])/pci_bus_read_config_\1/'
	'/^PCI_OP_WRITE([[:space:]]*\(\w*\).*[1-4])/pci_bus_write_config_\1/'
	'/\<DEFINE_\(RT_MUTEX\|MUTEX\|SEMAPHORE\|SPINLOCK\)([[:space:]]*\([[:alnum:]_]*\)/\2/v/'
	'/\<DEFINE_\(RAW_SPINLOCK\|RWLOCK\|SEQLOCK\)([[:space:]]*\([[:alnum:]_]*\)/\2/v/'
	'/\<DECLARE_\(RWSEM\|COMPLETION\)([[:space:]]*\([[:alnum:]_]\+\)/\2/v/'
	'/\<DECLARE_BITMAP([[:space:]]*\([[:alnum:]_]*\)/\1/v/'
	'/\(^\|\s\)\(\|L\|H\)LIST_HEAD([[:space:]]*\([[:alnum:]_]*\)/\3/v/'
	'/\(^\|\s\)RADIX_TREE([[:space:]]*\([[:alnum:]_]*\)/\2/v/'
	'/\<DEFINE_PER_CPU([^,]*,[[:space:]]*\([[:alnum:]_]*\)/\1/v/'
	'/\<DEFINE_PER_CPU_SHARED_ALIGNED([^,]*,[[:space:]]*\([[:alnum:]_]*\)/\1/v/'
	'/\<DECLARE_WAIT_QUEUE_HEAD([[:space:]]*\([[:alnum:]_]*\)/\1/v/'
	'/\<DECLARE_\(TASKLET\|WORK\|DELAYED_WORK\)([[:space:]]*\([[:alnum:]_]*\)/\2/v/'
	'/\(^\s\)OFFSET([[:space:]]*\([[:alnum:]_]*\)/\2/v/'
	'/\(^\s\)DEFINE([[:space:]]*\([[:alnum:]_]*\)/\2/v/'
	'/\<\(DEFINE\|DECLARE\)_HASHTABLE([[:space:]]*\([[:alnum:]_]*\)/\2/v/'
	'/\<DEFINE_ID\(R\|A\)([[:space:]]*\([[:alnum:]_]\+\)/\2/'
	'/\<DEFINE_WD_CLASS([[:space:]]*\([[:alnum:]_]\+\)/\1/'
	'/\<ATOMIC_NOTIFIER_HEAD([[:space:]]*\([[:alnum:]_]\+\)/\1/'
	'/\<RAW_NOTIFIER_HEAD([[:space:]]*\([[:alnum:]_]\+\)/\1/'
	'/\<DECLARE_FAULT_ATTR([[:space:]]*\([[:alnum:]_]\+\)/\1/'
	'/\<BLOCKING_NOTIFIER_HEAD([[:space:]]*\([[:alnum:]_]\+\)/\1/'
	'/\<DEVICE_ATTR_\(RW\|RO\|WO\)([[:space:]]*\([[:alnum:]_]\+\)/dev_attr_\2/'
	'/\<DRIVER_ATTR_\(RW\|RO\|WO\)([[:space:]]*\([[:alnum:]_]\+\)/driver_attr_\2/'
	'/\<\(DEFINE\|DECLARE\)_STATIC_KEY_\(TRUE\|FALSE\)\(\|_RO\)([[:space:]]*\([[:alnum:]_]\+\)/\4/'
	'/^SEQCOUNT_LOCKTYPE(\([^,]*\),[[:space:]]*\([^,]*\),[^)]*)/seqcount_\2_t/'
	'/^SEQCOUNT_LOCKTYPE(\([^,]*\),[[:space:]]*\([^,]*\),[^)]*)/seqcount_\2_init/'
)
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()
{
	CTAGS_EXTRA="extra"
	if $1 --version 2>&1 | grep -iq universal; then
	    CTAGS_EXTRA="extras"
	fi
	setup_regex exuberant asm c
	all_target_sources | xargs $1 -a                        \
	-I __initdata,__exitdata,__initconst,__ro_after_init	\
	-I __initdata_memblock					\
	-I __refdata,__attribute,__maybe_unused,__always_unused \
	-I __acquires,__releases,__deprecated,__always_inline	\
	-I __read_mostly,__aligned,____cacheline_aligned        \
	-I ____cacheline_aligned_in_smp                         \
	-I __cacheline_aligned,__cacheline_aligned_in_smp	\
	-I ____cacheline_internodealigned_in_smp                \
	-I __used,__packed,__packed2__,__must_check,__must_hold	\
	-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL,ACPI_EXPORT_SYMBOL   \
	-I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
	-I static,const						\
	--$CTAGS_EXTRA=+fq --c-kinds=+px --fields=+iaS --langmap=c:+.h \
	"${regex[@]}"

	KCONFIG_ARGS=()
	if ! $1 --list-languages | grep -iq kconfig; then
		setup_regex exuberant kconfig
		KCONFIG_ARGS=(--langdef=kconfig --language-force=kconfig "${regex[@]}")
	fi
	all_kconfigs | xargs $1 -a "${KCONFIG_ARGS[@]}"
}

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
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
    LC_ALL=C sed -i -e '/^\([a-zA-Z_][a-zA-Z0-9_]*\)\t.*\t\/\^struct \1;.*\$\/;"\tx$/d' $1
fi
Commit	Line	Data
93209d65	1	#!/bin/bash
457c8996	2	# SPDX-License-Identifier: GPL-2.0-only
a680eedc SR	3	# Generate tags or cscope files
	4	# Usage tags.sh <mode>
	5	#
4f3f263d	6	# mode may be any of: tags, gtags, TAGS, cscope
a680eedc SR	7	#
a680eedc SR	8	# Uses the following environment variables:
b3b3eb9d	9	# SUBARCH, SRCARCH, srctree
a680eedc	10
6ae4b986	11	if [[ "$KBUILD_VERBOSE" =~ 1 ]]; then
a680eedc SR	12	set -x
	13	fi
	14
ae63b2d7 PB	15	# RCS_FIND_IGNORE has escaped ()s -- remove them.
	16	ignore="$(echo "$RCS_FIND_IGNORE" \| sed 's\|\\\|\|g' )"
	17	# tags and cscope files should also ignore MODVERSION *.mod.c files
	18	ignore="$ignore ( -name *.mod.c ) -prune -o"
a680eedc	19
40bf2fcd PMA	20	# ignore arbitrary directories
	21	if [ -n "${IGNORE_DIRS}" ]; then
	22	for i in ${IGNORE_DIRS}; do
	23	ignore="${ignore} ( -path $i ) -prune -o"
	24	done
	25	fi
	26
95fd3f87	27	# Use make KBUILD_ABS_SRCTREE=1 {tags\|cscope}
e93bc1a0	28	# to force full paths for a non-O= build
c69ef1c8	29	if [ "${srctree}" = "." -o -z "${srctree}" ]; then
a680eedc SR	30	tree=
a680eedc SR	31	else
709cc372	32	tree=${srctree}/
a680eedc SR	33	fi
a680eedc SR	34
e1b37563 AD	35	# gtags(1) refuses to index any file outside of its current working dir.
	36	# If gtags indexing is requested and the build output directory is not
	37	# the kernel source tree, index all files in absolute-path form.
	38	if [[ "$1" == "gtags" && -n "${tree}" ]]; then
	39	tree=$(realpath "$tree")/
	40	fi
	41
4f628248 JS	42	# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
	43	if [ "${ALLSOURCE_ARCHS}" = "" ]; then
	44	ALLSOURCE_ARCHS=${SRCARCH}
bc75cc6b	45	elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
656c1077	46	ALLSOURCE_ARCHS=$(find ${tree}arch/ -mindepth 1 -maxdepth 1 -type d -printf '%f ')
4f628248 JS	47	fi
4f628248 JS	48
b3b3eb9d	49	# find sources in arch/$1
a680eedc SR	50	find_arch_sources()
a680eedc SR	51	{
f81b1be4	52	for i in $archincludedir; do
f9fefa98	53	prune="$prune ( -path $i ) -prune -o"
f81b1be4	54	done
d1db881d	55	find ${tree}arch/$1 $ignore $prune -name "$2" -not -type l -print;
a680eedc SR	56	}
	57
	58	# find sources in arch/$1/include
	59	find_arch_include_sources()
	60	{
d1db881d	61	include=$(find ${tree}arch/$1/ -name include -type d -print);
f81b1be4 GL	62	if [ -n "$include" ]; then
f81b1be4 GL	63	archincludedir="$archincludedir $include"
9b24a15d	64	find $include $ignore -name "$2" -not -type l -print;
f81b1be4	65	fi
a680eedc SR	66	}
	67
	68	# find sources in include/
	69	find_include_sources()
	70	{
9b24a15d YD	71	find ${tree}include $ignore -name config -prune -o -name "$1" \
9b24a15d YD	72	-not -type l -print;
a680eedc SR	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 \
99443f81	80	\( -path ${tree}include -o -path ${tree}arch -o -name '.tmp_*' \) -prune -o \
9b24a15d	81	-name "$1" -not -type l -print;
a680eedc SR	82	}
	83
	84	find_sources()
	85	{
709cc372	86	find_arch_sources $1 "$2"
a680eedc SR	87	}
	88
	89	all_sources()
	90	{
a8bac511	91	find_arch_include_sources ${SRCARCH} '*.[chS]'
a680eedc	92	if [ ! -z "$archinclude" ]; then
709cc372	93	find_arch_include_sources $archinclude '*.[chS]'
a680eedc	94	fi
4f628248	95	find_include_sources '*.[chS]'
f81b1be4 GL	96	for arch in $ALLSOURCE_ARCHS
	97	do
	98	find_sources $arch '*.[chS]'
	99	done
4f628248	100	find_other_sources '*.[chS]'
a680eedc SR	101	}
a680eedc SR	102
923e02ec JK	103	all_compiled_sources()
923e02ec JK	104	{
7394d2eb CC	105	{
	106	echo include/generated/autoconf.h
	107	find $ignore -name "*.cmd" -exec \
82089b00	108	grep -Poh '(?<=^ )\S+\|(?<== )\S+[^\\](?=$)' {} \+ \|
7394d2eb	109	awk '!a[$0]++'
d60be533	110	} \| xargs realpath -esq $([ -z "$KBUILD_ABS_SRCTREE" ] && echo --relative-to=.) \|
7394d2eb	111	sort -u
923e02ec JK	112	}
	113
	114	all_target_sources()
	115	{
	116	if [ -n "$COMPILED_SOURCE" ]; then
	117	all_compiled_sources
	118	else
	119	all_sources
	120	fi
	121	}
	122
a680eedc SR	123	all_kconfigs()
a680eedc SR	124	{
7659c655 HT	125	find ${tree}arch/ -maxdepth 1 $ignore \
7659c655 HT	126	-name "Kconfig*" -not -type l -print;
953fae66 AD	127	for arch in $ALLSOURCE_ARCHS; do
	128	find_sources $arch 'Kconfig*'
	129	done
	130	find_other_sources 'Kconfig*'
a680eedc SR	131	}
a680eedc SR	132
a680eedc SR	133	docscope()
a680eedc SR	134	{
923e02ec	135	(echo \-k; echo \-q; all_target_sources) > cscope.files
a680eedc SR	136	cscope -b -f cscope.out
	137	}
	138
f4ed1009 JK	139	dogtags()
f4ed1009 JK	140	{
e1b37563	141	all_target_sources \| gtags -i -C "${tree:-.}" -f - "$PWD"
f4ed1009 JK	142	}
f4ed1009 JK	143
93209d65 MM	144	# Basic regular expressions with an optional /kind-spec/ for ctags and
	145	# the following limitations:
	146	# - No regex modifiers
	147	# - Use \{0,1\} instead of \?, because etags expects an unescaped ?
	148	# - \s is not working with etags, use a space or [ \t]
	149	# - \w works, but does not match underscores in etags
	150	# - etags regular expressions have to match at the start of a line;
	151	# a ^[^#] is prepended by setup_regex unless an anchor is already present
	152	regex_asm=(
b6379e73	153	'/^\(ENTRY\\|_GLOBAL\)([[:space:]]\([[:alnum:]_\\]\)).*/\2/'
93209d65 MM	154	)
93209d65 MM	155	regex_c=(
b6379e73 ZL	156	'/^SYSCALL_DEFINE[0-9]([[:space:]]\([[:alnum:]_]\).*/sys_\1/'
	157	'/^BPF_CALL_[0-9]([[:space:]]\([[:alnum:]_]\).*/\1/'
	158	'/^COMPAT_SYSCALL_DEFINE[0-9]([[:space:]]\([[:alnum:]_]\).*/compat_sys_\1/'
	159	'/^TRACE_EVENT([[:space:]]\([[:alnum:]_]\).*/trace_\1/'
	160	'/^TRACE_EVENT([[:space:]]\([[:alnum:]_]\).*/trace_\1_rcuidle/'
	161	'/^DEFINE_EVENT([^,)],[[:space:]]\([[:alnum:]_]\)./trace_\1/'
	162	'/^DEFINE_EVENT([^,)],[[:space:]]\([[:alnum:]_]\)./trace_\1_rcuidle/'
	163	'/^DEFINE_INSN_CACHE_OPS([[:space:]]\([[:alnum:]_]\).*/get_\1_slot/'
	164	'/^DEFINE_INSN_CACHE_OPS([[:space:]]\([[:alnum:]_]\).*/free_\1_slot/'
	165	'/^PAGEFLAG([[:space:]]\([[:alnum:]_]\).*/Page\1/'
	166	'/^PAGEFLAG([[:space:]]\([[:alnum:]_]\).*/SetPage\1/'
	167	'/^PAGEFLAG([[:space:]]\([[:alnum:]_]\).*/ClearPage\1/'
	168	'/^TESTSETFLAG([[:space:]]\([[:alnum:]_]\).*/TestSetPage\1/'
	169	'/^TESTPAGEFLAG([[:space:]]\([[:alnum:]_]\).*/Page\1/'
	170	'/^SETPAGEFLAG([[:space:]]\([[:alnum:]_]\).*/SetPage\1/'
	171	'/\<__SETPAGEFLAG([[:space:]]\([[:alnum:]_]\).*/__SetPage\1/'
	172	'/\<TESTCLEARFLAG([[:space:]]\([[:alnum:]_]\).*/TestClearPage\1/'
	173	'/\<__TESTCLEARFLAG([[:space:]]\([[:alnum:]_]\).*/TestClearPage\1/'
	174	'/\<CLEARPAGEFLAG([[:space:]]\([[:alnum:]_]\).*/ClearPage\1/'
	175	'/\<__CLEARPAGEFLAG([[:space:]]\([[:alnum:]_]\).*/__ClearPage\1/'
	176	'/^__PAGEFLAG([[:space:]]\([[:alnum:]_]\).*/__SetPage\1/'
	177	'/^__PAGEFLAG([[:space:]]\([[:alnum:]_]\).*/__ClearPage\1/'
	178	'/^PAGEFLAG_FALSE([[:space:]]\([[:alnum:]_]\).*/Page\1/'
	179	'/\<TESTSCFLAG([[:space:]]\([[:alnum:]_]\).*/TestSetPage\1/'
	180	'/\<TESTSCFLAG([[:space:]]\([[:alnum:]_]\).*/TestClearPage\1/'
	181	'/\<SETPAGEFLAG_NOOP([[:space:]]\([[:alnum:]_]\).*/SetPage\1/'
	182	'/\<CLEARPAGEFLAG_NOOP([[:space:]]\([[:alnum:]_]\).*/ClearPage\1/'
	183	'/\<__CLEARPAGEFLAG_NOOP([[:space:]]\([[:alnum:]_]\).*/__ClearPage\1/'
	184	'/\<TESTCLEARFLAG_FALSE([[:space:]]\([[:alnum:]_]\).*/TestClearPage\1/'
	185	'/^PAGE_TYPE_OPS([[:space:]]\([[:alnum:]_]\).*/Page\1/'
	186	'/^PAGE_TYPE_OPS([[:space:]]\([[:alnum:]_]\).*/__SetPage\1/'
	187	'/^PAGE_TYPE_OPS([[:space:]]\([[:alnum:]_]\).*/__ClearPage\1/'
	188	'/^TASK_PFA_TEST([^,],[[:space:]]\([[:alnum:]_]*\))/task_\1/'
	189	'/^TASK_PFA_SET([^,],[[:space:]]\([[:alnum:]_]*\))/task_set_\1/'
	190	'/^TASK_PFA_CLEAR([^,],[[:space:]]\([[:alnum:]_]*\))/task_clear_\1/'
	191	'/^DEF_MMIO_\(IN\\|OUT\)_[XD]([[:space:]]\([[:alnum:]_]\),[^)]*)/\2/'
	192	'/^DEBUGGER_BOILERPLATE([[:space:]]\([[:alnum:]_]\))/\1/'
	193	'/^DEF_PCI_AC_\(\\|NO\)RET([[:space:]]\([[:alnum:]_]\).*/\2/'
	194	'/^PCI_OP_READ([[:space:]]\(\w\).*[1-4])/pci_bus_read_config_\1/'
	195	'/^PCI_OP_WRITE([[:space:]]\(\w\).*[1-4])/pci_bus_write_config_\1/'
	196	'/\<DEFINE_\(RT_MUTEX\\|MUTEX\\|SEMAPHORE\\|SPINLOCK\)([[:space:]]\([[:alnum:]_]\)/\2/v/'
	197	'/\<DEFINE_\(RAW_SPINLOCK\\|RWLOCK\\|SEQLOCK\)([[:space:]]\([[:alnum:]_]\)/\2/v/'
	198	'/\<DECLARE_\(RWSEM\\|COMPLETION\)([[:space:]]*\([[:alnum:]_]\+\)/\2/v/'
	199	'/\<DECLARE_BITMAP([[:space:]]\([[:alnum:]_]\)/\1/v/'
	200	'/\(^\\|\s\)\(\\|L\\|H\)LIST_HEAD([[:space:]]\([[:alnum:]_]\)/\3/v/'
	201	'/\(^\\|\s\)RADIX_TREE([[:space:]]\([[:alnum:]_]\)/\2/v/'
	202	'/\<DEFINE_PER_CPU([^,],[[:space:]]\([[:alnum:]_]*\)/\1/v/'
	203	'/\<DEFINE_PER_CPU_SHARED_ALIGNED([^,],[[:space:]]\([[:alnum:]_]*\)/\1/v/'
	204	'/\<DECLARE_WAIT_QUEUE_HEAD([[:space:]]\([[:alnum:]_]\)/\1/v/'
	205	'/\<DECLARE_\(TASKLET\\|WORK\\|DELAYED_WORK\)([[:space:]]\([[:alnum:]_]\)/\2/v/'
	206	'/\(^\s\)OFFSET([[:space:]]\([[:alnum:]_]\)/\2/v/'
	207	'/\(^\s\)DEFINE([[:space:]]\([[:alnum:]_]\)/\2/v/'
	208	'/\<\(DEFINE\\|DECLARE\)_HASHTABLE([[:space:]]\([[:alnum:]_]\)/\2/v/'
	209	'/\<DEFINE_ID\(R\\|A\)([[:space:]]*\([[:alnum:]_]\+\)/\2/'
	210	'/\<DEFINE_WD_CLASS([[:space:]]*\([[:alnum:]_]\+\)/\1/'
	211	'/\<ATOMIC_NOTIFIER_HEAD([[:space:]]*\([[:alnum:]_]\+\)/\1/'
	212	'/\<RAW_NOTIFIER_HEAD([[:space:]]*\([[:alnum:]_]\+\)/\1/'
	213	'/\<DECLARE_FAULT_ATTR([[:space:]]*\([[:alnum:]_]\+\)/\1/'
	214	'/\<BLOCKING_NOTIFIER_HEAD([[:space:]]*\([[:alnum:]_]\+\)/\1/'
	215	'/\<DEVICE_ATTR_\(RW\\|RO\\|WO\)([[:space:]]*\([[:alnum:]_]\+\)/dev_attr_\2/'
	216	'/\<DRIVER_ATTR_\(RW\\|RO\\|WO\)([[:space:]]*\([[:alnum:]_]\+\)/driver_attr_\2/'
	217	'/\<\(DEFINE\\|DECLARE\)_STATIC_KEY_\(TRUE\\|FALSE\)\(\\|_RO\)([[:space:]]*\([[:alnum:]_]\+\)/\4/'
6eb6d059 PZ	218	'/^SEQCOUNT_LOCKTYPE(\([^,]\),[[:space:]]\([^,]\),[^)])/seqcount_\2_t/'
6eb6d059 PZ	219	'/^SEQCOUNT_LOCKTYPE(\([^,]\),[[:space:]]\([^,]\),[^)])/seqcount_\2_init/'
93209d65 MM	220	)
	221	regex_kconfig=(
	222	'/^[[:blank:]]*\(menu\\|\)config[[:blank:]]\+\([[:alnum:]_]\+\)/\2/'
	223	'/^[[:blank:]]*\(menu\\|\)config[[:blank:]]\+\([[:alnum:]_]\+\)/CONFIG_\2/'
	224	)
	225	setup_regex()
	226	{
	227	local mode=$1 lang tmp=() r
	228	shift
	229
	230	regex=()
	231	for lang; do
	232	case "$lang" in
	233	asm) tmp=("${regex_asm[@]}") ;;
	234	c) tmp=("${regex_c[@]}") ;;
	235	kconfig) tmp=("${regex_kconfig[@]}") ;;
	236	esac
	237	for r in "${tmp[@]}"; do
	238	if test "$mode" = "exuberant"; then
	239	regex[${#regex[@]}]="--regex-$lang=${r}b"
	240	else
	241	# Remove ctags /kind-spec/
	242	case "$r" in
	243	///?/)
	244	r=${r%?/}
	245	esac
	246	# Prepend ^[^#] unless already anchored
	247	case "$r" in
	248	/^*) ;;
	249	*)
	250	r="/^[^#]*${r#/}"
	251	esac
	252	regex[${#regex[@]}]="--regex=$r"
	253	fi
	254	done
	255	done
	256	}
	257
a680eedc SR	258	exuberant()
a680eedc SR	259	{
d06246eb PG	260	CTAGS_EXTRA="extra"
	261	if $1 --version 2>&1 \| grep -iq universal; then
	262	CTAGS_EXTRA="extras"
	263	fi
93209d65	264	setup_regex exuberant asm c
923e02ec	265	all_target_sources \| xargs $1 -a \
e23ba825	266	-I __initdata,__exitdata,__initconst,__ro_after_init \
22c1587a	267	-I __initdata_memblock \
f5a82137	268	-I __refdata,__attribute,__maybe_unused,__always_unused \
cd68a525	269	-I __acquires,__releases,__deprecated,__always_inline \
1b2643f0	270	-I __read_mostly,__aligned,____cacheline_aligned \
a680eedc	271	-I ____cacheline_aligned_in_smp \
f5a82137	272	-I __cacheline_aligned,__cacheline_aligned_in_smp \
a680eedc	273	-I ____cacheline_internodealigned_in_smp \
1b2643f0	274	-I __used,__packed,__packed2__,__must_check,__must_hold \
f5a82137	275	-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL,ACPI_EXPORT_SYMBOL \
7db86dc9	276	-I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
1b2643f0	277	-I static,const \
d06246eb	278	--$CTAGS_EXTRA=+fq --c-kinds=+px --fields=+iaS --langmap=c:+.h \
d0c75f33	279	"${regex[@]}"
a680eedc	280
21773790 KH	281	KCONFIG_ARGS=()
	282	if ! $1 --list-languages \| grep -iq kconfig; then
	283	setup_regex exuberant kconfig
	284	KCONFIG_ARGS=(--langdef=kconfig --language-force=kconfig "${regex[@]}")
	285	fi
	286	all_kconfigs \| xargs $1 -a "${KCONFIG_ARGS[@]}"
a680eedc SR	287	}
	288
	289	emacs()
	290	{
93209d65 MM	291	setup_regex emacs asm c
93209d65 MM	292	all_target_sources \| xargs $1 -a "${regex[@]}"
a680eedc	293
93209d65 MM	294	setup_regex emacs kconfig
93209d65 MM	295	all_kconfigs \| xargs $1 -a "${regex[@]}"
a680eedc SR	296	}
	297
	298	xtags()
	299	{
	300	if $1 --version 2>&1 \| grep -iq exuberant; then
	301	exuberant $1
	302	elif $1 --version 2>&1 \| grep -iq emacs; then
	303	emacs $1
	304	else
923e02ec	305	all_target_sources \| xargs $1 -a
bb66fc67	306	fi
a680eedc SR	307	}
a680eedc SR	308
a680eedc	309	# Support um (which uses SUBARCH)
a6ba0cb3 JS	310	if [ "${ARCH}" = "um" ]; then
a6ba0cb3 JS	311	if [ "$SUBARCH" = "i386" ]; then
a680eedc	312	archinclude=x86
a6ba0cb3	313	elif [ "$SUBARCH" = "x86_64" ]; then
a680eedc SR	314	archinclude=x86
	315	else
	316	archinclude=${SUBARCH}
	317	fi
	318	fi
	319
66979224	320	remove_structs=
a680eedc SR	321	case "$1" in
	322	"cscope")
	323	docscope
	324	;;
	325
f4ed1009 JK	326	"gtags")
	327	dogtags
	328	;;
	329
a680eedc	330	"tags")
2e6cb8b0	331	rm -f tags
a680eedc	332	xtags ctags
66979224	333	remove_structs=y
a680eedc SR	334	;;
	335
	336	"TAGS")
2e6cb8b0	337	rm -f TAGS
a680eedc	338	xtags etags
66979224	339	remove_structs=y
a680eedc SR	340	;;
a680eedc SR	341	esac
66979224 YB	342
66979224 YB	343	# Remove structure forward declarations.
0eb043d0	344	if [ -n "$remove_structs" ]; then
77a88274	345	LC_ALL=C sed -i -e '/^\([a-zA-Z_][a-zA-Z0-9_]\)\t.\t\/\^struct \1;.*\$\/;"\tx$/d' $1
66979224	346	fi