Eric Lee / smarc-ti-linux-kernel | Embedian Git Server

Commit 4f628248a578585472e19e4cba2c604643af8c6c

Authored by Jike Song 2009-01-05 14:57:03 +0800

Committed by Sam Ravnborg 2009-01-08 04:44:21 +0800

kbuild: reintroduce ALLSOURCE_ARCHS support for tags/cscope

This patch reintroduce the ALLSOURCE_ARCHS support for tags/TAGS/
cscope targets. The Kbuild previously has this feature, but after
moving the targets into scripts/tags.sh, ALLSOURCE_ARCHS disappears.

It's something like this:

	$ make ALLSOURCE_ARCHS="x86 mips arm" tags cscope

Signed-off-by: Jike Song <albcamus@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Showing 2 changed files with 20 additions and 5 deletions Inline Diff

Documentation/kbuild/kbuild.txt
scripts/tags.sh

Documentation/kbuild/kbuild.txt

Diff comments View file @ 4f62824

 Environment variables
 KCPPFLAGS
 --------------------------------------------------
 Additional options to pass when preprocessing. The preprocessing options
 will be used in all cases where kbuild do preprocessing including
 building C files and assembler files.
 KAFLAGS
 --------------------------------------------------
 Additional options to the assembler.
 KCFLAGS
 --------------------------------------------------
 Additional options to the C compiler.
 KBUILD_VERBOSE
 --------------------------------------------------
 Set the kbuild verbosity. Can be assinged same values as "V=...".
 See make help for the full list.
 Setting "V=..." takes precedence over KBUILD_VERBOSE.
 KBUILD_EXTMOD
 --------------------------------------------------
 Set the directory to look for the kernel source when building external
 modules.
 The directory can be specified in several ways:
 1) Use "M=..." on the command line
 2) Environmnet variable KBUILD_EXTMOD
 3) Environmnet variable SUBDIRS
 The possibilities are listed in the order they take precedence.
 Using "M=..." will always override the others.
 KBUILD_OUTPUT
 --------------------------------------------------
 Specify the output directory when building the kernel.
 The output directory can also be specificed using "O=...".
 Setting "O=..." takes precedence over KBUILD_OUTPUT
 ARCH
 --------------------------------------------------
 Set ARCH to the architecture to be built.
 In most cases the name of the architecture is the same as the
 directory name found in the arch/ directory.
 But some architectures suach as x86 and sparc has aliases.
 x86: i386 for 32 bit, x86_64 for 64 bit
 sparc: sparc for 32 bit, sparc64 for 64 bit
 CROSS_COMPILE
 --------------------------------------------------
 Specify an optional fixed part of the binutils filename.
 CROSS_COMPILE can be a part of the filename or the full path.
 CROSS_COMPILE is also used for ccache is some setups.
 CF
 --------------------------------------------------
 Additional options for sparse.
 CF is often used on the command-line like this:
     make CF=-Wbitwise C=2
 INSTALL_PATH
 --------------------------------------------------
 INSTALL_PATH specifies where to place the updated kernel and system map
 images. Default is /boot, but you can set it to other values
 MODLIB
 --------------------------------------------------
 Specify where to install modules.
 The default value is:
      $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
 The value can be overridden in which case the default value is ignored.
 INSTALL_MOD_PATH
 --------------------------------------------------
 INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
 relocations required by build roots.  This is not defined in the
 makefile but the argument can be passed to make if needed.
 INSTALL_MOD_STRIP
 --------------------------------------------------
 INSTALL_MOD_STRIP, if defined, will cause modules to be
 stripped after they are installed.  If INSTALL_MOD_STRIP is '1', then
 the default option --strip-debug will be used.  Otherwise,
 INSTALL_MOD_STRIP will used as the options to the strip command.
 INSTALL_FW_PATH
 --------------------------------------------------
 INSTALL_FW_PATH specify where to install the firmware blobs.
 The default value is:
     $(INSTALL_MOD_PATH)/lib/firmware
 The value can be overridden in which case the default value is ignored.
 INSTALL_HDR_PATH
 --------------------------------------------------
 INSTALL_HDR_PATH specify where to install user space headers when
 executing "make headers_*".
 The default value is:
     $(objtree)/usr
 $(objtree) is the directory where output files are saved.
 The output directory is often set using "O=..." on the commandline.
 The value can be overridden in which case the default value is ignored.
 KBUILD_MODPOST_WARN
 --------------------------------------------------
 KBUILD_MODPOST_WARN can be set to avoid error out in case of undefined
 symbols in the final module linking stage.
 KBUILD_MODPOST_FINAL
 --------------------------------------------------
 KBUILD_MODPOST_NOFINAL can be set to skip the final link of modules.
 This is solely usefull to speed up test compiles.
 KBUILD_EXTRA_SYMBOLS
 --------------------------------------------------
 For modules use symbols from another modules.
 See more details in modules.txt.
+ALLSOURCE_ARCHS
+--------------------------------------------------
+For tags/TAGS/cscope targets, you can specify more than one archs
+to be included in the databases, separated by blankspace. e.g.
+    $ make ALLSOURCE_ARCHS="x86 mips arm" tags

scripts/tags.sh

Diff comments View file @ 4f62824

 #!/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, srctree, src, obj
 if [ "$KBUILD_VERBOSE" = "1" ]; then
 	set -x
 fi
 # This is a duplicate of RCS_FIND_IGNORE without escaped '()'
 ignore="( -name SCCS -o -name BitKeeper -o -name .svn -o \
           -name CVS  -o -name .pc       -o -name .hg  -o \
           -name .git )                                   \
           -prune -o"
 # Do not use full path is we do not use O=.. builds
 if [ "${KBUILD_SRC}" = "" ]; then
 	tree=
 else
 	tree=${srctree}/
 fi
+# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
+if [ "${ALLSOURCE_ARCHS}" = "" ]; then
+	ALLSOURCE_ARCHS=${SRCARCH}
+fi
 # find sources in arch/$ARCH
 find_arch_sources()
 {
 	find ${tree}arch/$1 $ignore -name "$2" -print;
 }
 # find sources in arch/$1/include
 find_arch_include_sources()
 {
 	find ${tree}arch/$1/include $ignore -name "$2" -print;
 }
 # 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"
-	find_include_sources "$2"
-	find_other_sources "$2"
 }
 all_sources()
 {
-	find_sources $SRCARCH '*.[chS]'
+	for arch in $ALLSOURCE_ARCHS
+	do
+		find_sources $arch '*.[chS]'
+	done
 	if [ ! -z "$archinclude" ]; then
 		find_arch_include_sources $archinclude '*.[chS]'
 	fi
+	find_include_sources '*.[chS]'
+	find_other_sources '*.[chS]'
 }
 all_kconfigs()
 {
-	find_sources $SRCARCH 'Kconfig*'
+	find_sources $ALLSOURCE_ARCHS 'Kconfig*'
 }
 all_defconfigs()
 {
-	find_sources $SRCARCH "defconfig"
+	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                      \
 	--extra=+f --c-kinds=+px                                \
 	--regex-asm='/^ENTRY\(([^)]*)\).*/\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
 	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")
 		xtags ctags
 		;;
 	"TAGS")
 		xtags etags
 		;;