5 NAME=Sliding Snow Leopard
8 # To see a list of typical targets execute "make help"
9 # More info can be located in ./README
10 # Comments in this file are targeted only to the developer, do not
11 # expect to learn how to build the kernel reading this file.
13 # Do not print "Entering directory ..."
14 MAKEFLAGS += --no-print-directory
16 # We are using a recursive build, so we need to do a little thinking
17 # to get the ordering right.
19 # Most importantly: sub-Makefiles should only ever modify files in
20 # their own directory. If in some directory we have a dependency on
21 # a file in another dir (which doesn't happen often, but it's often
22 # unavoidable when linking the built-in.o targets which finally
23 # turn into vmlinux), we will call a sub make in that other dir, and
24 # after that we are sure that everything which is in that other dir
27 # The only cases where we need to modify files which have global
28 # effects are thus separated out and done before the recursive
29 # descending is started. They are now explicitly listed as the
32 # To put more focus on warnings, be less verbose as default
33 # Use 'make V=1' to see the full commands
36 ifeq ("$(origin V)", "command line")
44 # Call sparse as part of compilation of C files
45 # Use 'make C=1' to enable sparse checking
48 ifeq ("$(origin C)", "command line")
49 KBUILD_CHECKSRC = $(C)
52 ifndef KBUILD_CHECKSRC
56 # Use make M=dir to specify directory of external module to build
57 # Old syntax make ... SUBDIRS=$PWD is still supported
58 # Setting the environment variable KBUILD_EXTMOD take precedence
60 KBUILD_EXTMOD ?= $(SUBDIRS)
63 ifeq ("$(origin M)", "command line")
69 # kbuild supports saving output files in a separate directory.
70 # To locate output files in a separate directory two syntaxes are supported.
71 # In both cases the working directory must be the root of the kernel src.
73 # Use "make O=dir/to/store/output/files/"
75 # 2) Set KBUILD_OUTPUT
76 # Set the environment variable KBUILD_OUTPUT to point to the directory
77 # where the output files shall be placed.
78 # export KBUILD_OUTPUT=dir/to/store/output/files/
81 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
85 # KBUILD_SRC is set on invocation of make in OBJ directory
86 # KBUILD_SRC is not intended to be used by the regular user (for now)
89 # OK, Make called in directory where kernel src resides
90 # Do we want to locate output files in a separate directory?
92 ifeq ("$(origin O)", "command line")
97 # That's our default target when none is given on the command line
101 ifneq ($(KBUILD_OUTPUT),)
102 # Invoke a second make in the output directory, passing relevant variables
103 # check that the output directory actually exists
104 saved-output := $(KBUILD_OUTPUT)
105 KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
106 $(if $(KBUILD_OUTPUT),, \
107 $(error output directory "$(saved-output)" does not exist))
109 .PHONY: $(MAKECMDGOALS)
111 $(filter-out _all,$(MAKECMDGOALS)) _all:
112 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
113 KBUILD_SRC=$(CURDIR) \
114 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile $@
116 # Leave processing to above invocation of make
118 endif # ifneq ($(KBUILD_OUTPUT),)
119 endif # ifeq ($(KBUILD_SRC),)
121 # We process the rest of the Makefile if this is the final invocation of make
122 ifeq ($(skip-makefile),)
124 # If building an external module we do not care about the all: rule
125 # but instead _all depend on modules
127 ifeq ($(KBUILD_EXTMOD),)
133 srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
135 # FIXME - TOPDIR is obsolete, use srctree/objtree
142 export srctree objtree VPATH TOPDIR
145 space := $(nullstring) # end of line
147 # Take the contents of any files called localversion* and the config
148 # variable CONFIG_LOCALVERSION and append them to KERNELRELEASE. Be
149 # careful not to include files twice if building in the source
150 # directory. LOCALVERSION from the command line override all of this
152 localver := $(objtree)/localversion* $(srctree)/localversion*
153 localver := $(sort $(wildcard $(localver)))
154 # skip backup files (containing '~')
155 localver := $(foreach f, $(localver), $(if $(findstring ~, $(f)),,$(f)))
157 LOCALVERSION = $(subst $(space),, \
158 $(shell cat /dev/null $(localver)) \
159 $(patsubst "%",%,$(CONFIG_LOCALVERSION)))
161 KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)$(LOCALVERSION)
163 # SUBARCH tells the usermode build what the underlying arch is. That is set
164 # first, and if a usermode build is happening, the "ARCH=um" on the command
165 # line overrides the setting of ARCH below. If a native build is happening,
166 # then ARCH is assigned, getting whatever value it gets normally, and
167 # SUBARCH is subsequently ignored.
169 SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
170 -e s/arm.*/arm/ -e s/sa110/arm/ \
171 -e s/s390x/s390/ -e s/parisc64/parisc/ \
172 -e s/ppc64/powerpc/ )
174 # Cross compiling and selecting different set of gcc/bin-utils
175 # ---------------------------------------------------------------------------
177 # When performing cross compilation for other architectures ARCH shall be set
178 # to the target architecture. (See arch/* for the possibilities).
179 # ARCH can be set during invocation of make:
181 # Another way is to have ARCH set in the environment.
182 # The default ARCH is the host where make is executed.
184 # CROSS_COMPILE specify the prefix used for all executables used
185 # during compilation. Only gcc and related bin-utils executables
186 # are prefixed with $(CROSS_COMPILE).
187 # CROSS_COMPILE can be set on the command line
188 # make CROSS_COMPILE=ia64-linux-
189 # Alternatively CROSS_COMPILE can be set in the environment.
190 # Default value for CROSS_COMPILE is not to prefix executables
191 # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
196 # Architecture as present in compile.h
197 UTS_MACHINE := $(ARCH)
199 # SHELL used by kbuild
200 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
201 else if [ -x /bin/bash ]; then echo /bin/bash; \
202 else echo sh; fi ; fi)
206 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
209 # Decide whether to build built-in, modular, or both.
210 # Normally, just do built-in.
215 # If we have only "make modules", don't compile built-in objects.
216 # When we're building modules with modversions, we need to consider
217 # the built-in objects during the descend as well, in order to
218 # make sure the checksums are uptodate before we record them.
220 ifeq ($(MAKECMDGOALS),modules)
221 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
224 # If we have "make <whatever> modules", compile modules
225 # in addition to whatever we do anyway.
226 # Just "make" or "make all" shall build modules as well
228 ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
232 ifeq ($(MAKECMDGOALS),)
236 export KBUILD_MODULES KBUILD_BUILTIN
237 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
240 # ---------------------------------------------------------------------------
242 # Normally, we echo the whole command before executing it. By making
243 # that echo $($(quiet)$(cmd)), we now have the possibility to set
244 # $(quiet) to choose other forms of output instead, e.g.
246 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
247 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
249 # If $(quiet) is empty, the whole command will be printed.
250 # If it is set to "quiet_", only the short version will be printed.
251 # If it is set to "silent_", nothing wil be printed at all, since
252 # the variable $(silent_cmd_cc_o_c) doesn't exist.
254 # A simple variant is to prefix commands with $(Q) - that's useful
255 # for commands that shall be hidden in non-verbose mode.
259 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
260 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
262 ifeq ($(KBUILD_VERBOSE),1)
270 # If the user is running make -s (silent mode), suppress echoing of
273 ifneq ($(findstring s,$(MAKEFLAGS)),)
277 export quiet Q KBUILD_VERBOSE
280 # cc support functions to be used (only) in arch/$(ARCH)/Makefile
281 # See documentation in Documentation/kbuild/makefiles.txt
284 # Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586)
286 cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
287 > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
290 # Usage: flag := $(call cc-option-yn, -march=winchip-c6)
291 cc-option-yn = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
292 > /dev/null 2>&1; then echo "y"; else echo "n"; fi;)
295 # Prefix align with either -falign or -malign
296 cc-option-align = $(subst -functions=0,,\
297 $(call cc-option,-falign-functions=0,-malign-functions=0))
300 # Usage gcc-ver := $(call cc-version $(CC))
301 cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh \
302 $(if $(1), $(1), $(CC)))
305 # Look for make include files relative to root of kernel src
306 MAKEFLAGS += --include-dir=$(srctree)
308 # We need some generic definitions
309 include $(srctree)/scripts/Kbuild.include
311 # For maximum performance (+ possibly random breakage, uncomment
316 # Make variables (CC, etc...)
318 AS = $(CROSS_COMPILE)as
319 LD = $(CROSS_COMPILE)ld
320 CC = $(CROSS_COMPILE)gcc
322 AR = $(CROSS_COMPILE)ar
323 NM = $(CROSS_COMPILE)nm
324 STRIP = $(CROSS_COMPILE)strip
325 OBJCOPY = $(CROSS_COMPILE)objcopy
326 OBJDUMP = $(CROSS_COMPILE)objdump
328 GENKSYMS = scripts/genksyms/genksyms
329 DEPMOD = /sbin/depmod
330 KALLSYMS = scripts/kallsyms
334 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise $(CF)
336 CFLAGS_MODULE = $(MODFLAGS)
337 AFLAGS_MODULE = $(MODFLAGS)
343 # Use LINUXINCLUDE when you must reference the include/ directory.
344 # Needed to be compatible with the O= option
345 LINUXINCLUDE := -Iinclude \
346 $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \
347 -include include/linux/autoconf.h
349 CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)
351 CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
352 -fno-strict-aliasing -fno-common \
354 AFLAGS := -D__ASSEMBLY__
356 export VERSION PATCHLEVEL SUBLEVEL EXTRAVERSION LOCALVERSION KERNELRELEASE \
357 ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \
358 CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE \
359 HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
361 export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
362 export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
363 export AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
365 # When compiling out-of-tree modules, put MODVERDIR in the module
366 # tree rather than in the kernel tree. The kernel tree might
368 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
370 # Files to ignore in find ... statements
372 RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o
373 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git
375 # ===========================================================================
376 # Rules shared between *config targets and build targets
378 # Basic helpers built in scripts/
379 .PHONY: scripts_basic
381 $(Q)$(MAKE) $(build)=scripts/basic
383 # To avoid any implicit rule to kick in, define an empty command.
384 scripts/basic/%: scripts_basic ;
386 .PHONY: outputmakefile
387 # outputmakefile generate a Makefile to be placed in output directory, if
388 # using a seperate output directory. This allows convinient use
389 # of make in output directory
391 $(Q)if test ! $(srctree) -ef $(objtree); then \
392 $(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
393 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) \
394 > $(objtree)/Makefile; \
395 echo ' GEN $(objtree)/Makefile'; \
398 # To make sure we do not include .config for any of the *config targets
399 # catch them early, and hand them over to scripts/kconfig/Makefile
400 # It is allowed to specify more targets when calling make, including
401 # mixing *config targets and build targets.
402 # For example 'make oldconfig all'.
403 # Detect when mixed targets is specified, and make a second invocation
404 # of make so .config is not included in this case either (for *config).
406 no-dot-config-targets := clean mrproper distclean \
407 cscope TAGS tags help %docs check%
413 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
414 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
419 ifeq ($(KBUILD_EXTMOD),)
420 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
422 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
428 ifeq ($(mixed-targets),1)
429 # ===========================================================================
430 # We're called with mixed targets (*config and build targets).
431 # Handle them one by one.
434 $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@
437 ifeq ($(config-targets),1)
438 # ===========================================================================
439 # *config targets only - make sure prerequisites are updated, and descend
440 # in scripts/kconfig to make the *config target
442 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
443 # KBUILD_DEFCONFIG may point out an alternative default configuration
444 # used for 'make defconfig'
445 include $(srctree)/arch/$(ARCH)/Makefile
446 export KBUILD_DEFCONFIG
448 config %config: scripts_basic outputmakefile FORCE
449 $(Q)mkdir -p include/linux
450 $(Q)$(MAKE) $(build)=scripts/kconfig $@
453 # ===========================================================================
454 # Build targets only - this includes vmlinux, arch specific targets, clean
455 # targets and others. In general all targets except *config targets.
457 ifeq ($(KBUILD_EXTMOD),)
458 # Additional helpers built in scripts/
459 # Carefully list dependencies so we do not try to build scripts twice
462 scripts: scripts_basic include/config/MARKER
463 $(Q)$(MAKE) $(build)=$(@)
465 scripts_basic: include/linux/autoconf.h
467 # Objects we will link into vmlinux / subdirs we need to visit
469 drivers-y := drivers/ sound/
473 endif # KBUILD_EXTMOD
475 ifeq ($(dot-config),1)
476 # In this section, we need .config
478 # Read in dependencies to all Kconfig* files, make sure to run
479 # oldconfig if changes are detected.
484 # If .config needs to be updated, it will be done via the dependency
485 # that autoconf has on .config.
486 # To avoid any implicit rule to kick in, define an empty command
487 .config .kconfig.d: ;
489 # If .config is newer than include/linux/autoconf.h, someone tinkered
490 # with it and forgot to run make oldconfig.
491 # If kconfig.d is missing then we are probarly in a cleaned tree so
492 # we execute the config step to be sure to catch updated Kconfig files
493 include/linux/autoconf.h: .kconfig.d .config
494 $(Q)mkdir -p include/linux
495 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
497 # Dummy target needed, because used as prerequisite
498 include/linux/autoconf.h: ;
501 # The all: target is the default when no target is given on the
503 # This allow a user to issue only 'make' to build a kernel including modules
504 # Defaults vmlinux but it is usually overriden in the arch makefile
507 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
513 #Add align options if CONFIG_CC_* is not equal to 0
514 add-align = $(if $(filter-out 0,$($(1))),$(cc-option-align)$(2)=$($(1)))
515 CFLAGS += $(call add-align,CONFIG_CC_ALIGN_FUNCTIONS,-functions)
516 CFLAGS += $(call add-align,CONFIG_CC_ALIGN_LABELS,-labels)
517 CFLAGS += $(call add-align,CONFIG_CC_ALIGN_LOOPS,-loops)
518 CFLAGS += $(call add-align,CONFIG_CC_ALIGN_JUMPS,-jumps)
520 ifdef CONFIG_FRAME_POINTER
521 CFLAGS += -fno-omit-frame-pointer $(call cc-option,-fno-optimize-sibling-calls,)
523 CFLAGS += -fomit-frame-pointer
526 ifdef CONFIG_DEBUG_INFO
530 include $(srctree)/arch/$(ARCH)/Makefile
532 # arch Makefile may override CC so keep this after arch Makefile is included
533 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
534 CHECKFLAGS += $(NOSTDINC_FLAGS)
536 # warn about C99 declaration after statement
537 CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
539 # disable pointer signedness warnings in gcc 4.0
540 CFLAGS += $(call cc-option,-Wno-pointer-sign,)
542 # Default kernel image to build when no specific target is given.
543 # KBUILD_IMAGE may be overruled on the commandline or
544 # set in the environment
545 # Also any assignments in arch/$(ARCH)/Makefile take precedence over
547 export KBUILD_IMAGE ?= vmlinux
550 # INSTALL_PATH specifies where to place the updated kernel and system map
551 # images. Default is /boot, but you can set it to other values
552 export INSTALL_PATH ?= /boot
554 # If CONFIG_LOCALVERSION_AUTO is set, we automatically perform some tests
555 # and try to determine if the current source tree is a release tree, of any sort,
556 # or if is a pure development tree.
558 # A 'release tree' is any tree with a git TAG associated
559 # with it. The primary goal of this is to make it safe for a native
560 # git/CVS/SVN user to build a release tree (i.e, 2.6.9) and also to
561 # continue developing against the current Linus tree, without having the Linus
562 # tree overwrite the 2.6.9 tree when installed.
564 # Currently, only git is supported.
565 # Other SCMs can edit scripts/setlocalversion and add the appropriate
569 ifdef CONFIG_LOCALVERSION_AUTO
570 localversion-auto := $(shell $(PERL) $(srctree)/scripts/setlocalversion $(srctree))
571 LOCALVERSION := $(LOCALVERSION)$(localversion-auto)
575 # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
576 # relocations required by build roots. This is not defined in the
577 # makefile but the arguement can be passed to make if needed.
580 MODLIB := $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
584 ifeq ($(KBUILD_EXTMOD),)
585 core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
587 vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
588 $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
589 $(net-y) $(net-m) $(libs-y) $(libs-m)))
591 vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \
593 $(core-n) $(core-) $(drivers-n) $(drivers-) \
594 $(net-n) $(net-) $(libs-n) $(libs-))))
596 init-y := $(patsubst %/, %/built-in.o, $(init-y))
597 core-y := $(patsubst %/, %/built-in.o, $(core-y))
598 drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y))
599 net-y := $(patsubst %/, %/built-in.o, $(net-y))
600 libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))
601 libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))
602 libs-y := $(libs-y1) $(libs-y2)
605 # ---------------------------------------------------------------------------
606 # vmlinux is build from the objects selected by $(vmlinux-init) and
607 # $(vmlinux-main). Most are built-in.o files from top-level directories
608 # in the kernel tree, others are specified in arch/$(ARCH)Makefile.
609 # Ordering when linking is important, and $(vmlinux-init) must be first.
614 # +-< $(vmlinux-init)
615 # | +--< init/version.o + more
617 # +--< $(vmlinux-main)
618 # | +--< driver/built-in.o mm/built-in.o + more
620 # +-< kallsyms.o (see description in CONFIG_KALLSYMS section)
622 # vmlinux version (uname -v) cannot be updated during normal
623 # descending-into-subdirs phase since we do not yet know if we need to
625 # Therefore this step is delayed until just before final link of vmlinux -
626 # except in the kallsyms case where it is done just before adding the
627 # symbols to the kernel.
629 # System.map is generated to document addresses of all kernel symbols
631 vmlinux-init := $(head-y) $(init-y)
632 vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y)
633 vmlinux-all := $(vmlinux-init) $(vmlinux-main)
634 vmlinux-lds := arch/$(ARCH)/kernel/vmlinux.lds
636 # Rule to link vmlinux - also used during CONFIG_KALLSYMS
637 # May be overridden by arch/$(ARCH)/Makefile
638 quiet_cmd_vmlinux__ ?= LD $@
639 cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \
640 -T $(vmlinux-lds) $(vmlinux-init) \
641 --start-group $(vmlinux-main) --end-group \
642 $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) FORCE ,$^)
644 # Generate new vmlinux version
645 quiet_cmd_vmlinux_version = GEN .version
646 cmd_vmlinux_version = set -e; \
647 if [ ! -r .version ]; then \
651 mv .version .old_version; \
652 expr 0$$(cat .old_version) + 1 >.version; \
654 $(MAKE) $(build)=init
656 # Generate System.map
657 quiet_cmd_sysmap = SYSMAP
658 cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
661 # If CONFIG_KALLSYMS is set .version is already updated
662 # Generate System.map and verify that the content is consistent
663 # Use + in front of the vmlinux_version rule to silent warning with make -j2
664 # First command is ':' to allow us to use + in front of the rule
665 define rule_vmlinux__
667 $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version))
669 $(call cmd,vmlinux__)
670 $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd
672 $(Q)$(if $($(quiet)cmd_sysmap), \
673 echo ' $($(quiet)cmd_sysmap) System.map' &&) \
674 $(cmd_sysmap) $@ System.map; \
675 if [ $$? -ne 0 ]; then \
683 ifdef CONFIG_KALLSYMS
684 # Generate section listing all symbols and add it into vmlinux $(kallsyms.o)
685 # It's a three stage process:
686 # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is
688 # Running kallsyms on that gives us .tmp_kallsyms1.o with
689 # the right size - vmlinux version (uname -v) is updated during this step
690 # o .tmp_vmlinux2 now has a __kallsyms section of the right size,
691 # but due to the added section, some addresses have shifted.
692 # From here, we generate a correct .tmp_kallsyms2.o
693 # o The correct .tmp_kallsyms2.o is linked into the final vmlinux.
694 # o Verify that the System.map from vmlinux matches the map from
695 # .tmp_vmlinux2, just in case we did not generate kallsyms correctly.
696 # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using
697 # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a
698 # temporary bypass to allow the kernel to be built while the
699 # maintainers work out what went wrong with kallsyms.
701 ifdef CONFIG_KALLSYMS_EXTRA_PASS
707 kallsyms.o := .tmp_kallsyms$(last_kallsyms).o
709 define verify_kallsyms
710 $(Q)$(if $($(quiet)cmd_sysmap), \
711 echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \
712 $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map
713 $(Q)cmp -s System.map .tmp_System.map || \
714 (echo Inconsistent kallsyms data; \
715 echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \
716 rm .tmp_kallsyms* ; /bin/false )
719 # Update vmlinux version before link
720 # Use + in front of this rule to silent warning about make -j1
721 # First command is ':' to allow us to use + in front of this rule
722 cmd_ksym_ld = $(cmd_vmlinux__)
725 +$(call cmd,vmlinux_version)
726 $(call cmd,vmlinux__)
727 $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd
730 # Generate .S file with all kernel symbols
731 quiet_cmd_kallsyms = KSYM $@
732 cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \
733 $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@
735 .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE
736 $(call if_changed_dep,as_o_S)
738 .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS)
741 # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version
742 .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE
743 $(call if_changed_rule,ksym_ld)
745 .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE
746 $(call if_changed,vmlinux__)
748 .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE
749 $(call if_changed,vmlinux__)
751 # Needs to visit scripts/ before $(KALLSYMS) can be used.
752 $(KALLSYMS): scripts ;
754 # Generate some data for debugging strange kallsyms problems
755 debug_kallsyms: .tmp_map$(last_kallsyms)
757 .tmp_map%: .tmp_vmlinux% FORCE
758 ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@
764 endif # ifdef CONFIG_KALLSYMS
766 # vmlinux image - including updated kernel symbols
767 vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) FORCE
768 $(call if_changed_rule,vmlinux__)
769 $(Q)rm -f .old_version
771 # The actual objects are generated when descending,
772 # make sure no implicit rule kicks in
773 $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ;
775 # Handle descending into subdirectories listed in $(vmlinux-dirs)
776 # Preset locale variables to speed up the build process. Limit locale
777 # tweaks to this spot to avoid wrong language settings when running
778 # make menuconfig etc.
779 # Error messages still appears in the original language
781 .PHONY: $(vmlinux-dirs)
782 $(vmlinux-dirs): prepare scripts
783 $(Q)$(MAKE) $(build)=$@
785 # Things we need to do before we recursively start building the kernel
786 # or the modules are listed in "prepare".
787 # A multi level approach is used. prepareN is processed before prepareN-1.
788 # archprepare is used in arch Makefiles and when processed asm symlink,
789 # version.h and scripts_basic is processed / created.
791 # Listed in dependency order
792 .PHONY: prepare archprepare prepare0 prepare1 prepare2 prepare3
794 # prepare-all is deprecated, use prepare as valid replacement
797 # prepare3 is used to check if we are building in a separate output directory,
799 # 1) Check that make has not been executed in the kernel src $(srctree)
800 # 2) Create the include2 directory, used for the second asm symlink
803 ifneq ($(KBUILD_SRC),)
804 @echo ' Using $(srctree) as source for kernel'
805 $(Q)if [ -f $(srctree)/.config ]; then \
806 echo " $(srctree) is not clean, please run 'make mrproper'";\
807 echo " in the '$(srctree)' directory.";\
810 $(Q)if [ ! -d include2 ]; then mkdir -p include2; fi;
811 $(Q)ln -fsn $(srctree)/include/asm-$(ARCH) include2/asm
814 # prepare2 creates a makefile if using a separate output directory
815 prepare2: prepare3 outputmakefile
817 prepare1: prepare2 include/linux/version.h include/asm \
818 include/config/MARKER
819 ifneq ($(KBUILD_MODULES),)
820 $(Q)rm -rf $(MODVERDIR)
821 $(Q)mkdir -p $(MODVERDIR)
824 archprepare: prepare1 scripts_basic
826 prepare0: archprepare FORCE
827 $(Q)$(MAKE) $(build)=.
829 # All the preparing..
830 prepare prepare-all: prepare0
832 # Leave this as default for preprocessing vmlinux.lds.S, which is now
833 # done in arch/$(ARCH)/kernel/Makefile
835 export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
838 # ---------------------------------------------------------------------------
840 %.s: %.c scripts FORCE
841 $(Q)$(MAKE) $(build)=$(@D) $@
842 %.i: %.c scripts FORCE
843 $(Q)$(MAKE) $(build)=$(@D) $@
844 %.o: %.c scripts FORCE
845 $(Q)$(MAKE) $(build)=$(@D) $@
847 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) $(build)=$(@D) $(@:.ko=.o)
848 $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
849 %/: scripts prepare FORCE
850 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) $(build)=$(@D)
851 %.lst: %.c scripts FORCE
852 $(Q)$(MAKE) $(build)=$(@D) $@
853 %.s: %.S scripts FORCE
854 $(Q)$(MAKE) $(build)=$(@D) $@
855 %.o: %.S scripts FORCE
856 $(Q)$(MAKE) $(build)=$(@D) $@
858 # FIXME: The asm symlink changes when $(ARCH) changes. That's
859 # hard to detect, but I suppose "make mrproper" is a good idea
860 # before switching between archs anyway.
863 @echo ' SYMLINK $@ -> include/asm-$(ARCH)'
864 $(Q)if [ ! -d include ]; then mkdir -p include; fi;
865 @ln -fsn asm-$(ARCH) $@
867 # Split autoconf.h into include/linux/config/*
869 include/config/MARKER: scripts/basic/split-include include/linux/autoconf.h
870 @echo ' SPLIT include/linux/autoconf.h -> include/config/*'
871 @scripts/basic/split-include include/linux/autoconf.h include/config
874 # Generate some files
875 # ---------------------------------------------------------------------------
877 # KERNELRELEASE can change from a few different places, meaning version.h
878 # needs to be updated, so this check is forced on all builds
882 define filechk_version.h
883 if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \
884 echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \
887 (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\"; \
888 echo \#define LINUX_VERSION_CODE `expr $(VERSION) \\* 65536 + $(PATCHLEVEL) \\* 256 + $(SUBLEVEL)`; \
889 echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))'; \
893 include/linux/version.h: $(srctree)/Makefile FORCE
894 $(call filechk,version.h)
896 # ---------------------------------------------------------------------------
900 @echo '*** Warning: make $@ is unnecessary now.'
902 # ---------------------------------------------------------------------------
907 # By default, build modules as well
914 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)
915 @echo ' Building modules, stage 2.';
916 $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
919 # Target to prepare building external modules
920 .PHONY: modules_prepare
921 modules_prepare: prepare scripts
923 # Target to install modules
924 .PHONY: modules_install
925 modules_install: _modinst_ _modinst_post
929 @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \
930 echo "Warning: you may need to install module-init-tools"; \
931 echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\
934 @rm -rf $(MODLIB)/kernel
935 @rm -f $(MODLIB)/source
936 @mkdir -p $(MODLIB)/kernel
937 @ln -s $(srctree) $(MODLIB)/source
938 @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \
939 rm -f $(MODLIB)/build ; \
940 ln -s $(objtree) $(MODLIB)/build ; \
942 $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modinst
944 # If System.map exists, run depmod. This deliberately does not have a
945 # dependency on System.map since that would run the dependency tree on
946 # vmlinux. This depmod is only for convenience to give the initial
947 # boot a modules.dep even before / is mounted read-write. However the
948 # boot script depmod is the master version.
949 ifeq "$(strip $(INSTALL_MOD_PATH))" ""
952 depmod_opts := -b $(INSTALL_MOD_PATH) -r
954 .PHONY: _modinst_post
955 _modinst_post: _modinst_
956 if [ -r System.map -a -x $(DEPMOD) ]; then $(DEPMOD) -ae -F System.map $(depmod_opts) $(KERNELRELEASE); fi
958 else # CONFIG_MODULES
960 # Modules not configured
961 # ---------------------------------------------------------------------------
963 modules modules_install: FORCE
965 @echo "The present kernel configuration has modules disabled."
966 @echo "Type 'make config' and enable loadable module support."
967 @echo "Then build a kernel with module support enabled."
971 endif # CONFIG_MODULES
974 # Cleaning is done on three levels.
975 # make clean Delete most generated files
976 # Leave enough to build external modules
977 # make mrproper Delete the current configuration, and all generated files
978 # make distclean Remove editor backup files, patch leftover files and the like
980 # Directories & files removed with 'make clean'
981 CLEAN_DIRS += $(MODVERDIR)
982 CLEAN_FILES += vmlinux System.map \
983 .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map
985 # Directories & files removed with 'make mrproper'
986 MRPROPER_DIRS += include/config include2
987 MRPROPER_FILES += .config .config.old include/asm .version \
988 include/linux/autoconf.h include/linux/version.h \
989 Module.symvers tags TAGS cscope*
991 # clean - Delete most, but leave enough to build external modules
993 clean: rm-dirs := $(CLEAN_DIRS)
994 clean: rm-files := $(CLEAN_FILES)
995 clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs))
997 .PHONY: $(clean-dirs) clean archclean
999 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1001 clean: archclean $(clean-dirs)
1004 @find . $(RCS_FIND_IGNORE) \
1005 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1006 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \
1007 -type f -print | xargs rm -f
1009 # mrproper - Delete all generated files, including .config
1011 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1012 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1013 mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)
1015 .PHONY: $(mrproper-dirs) mrproper archmrproper
1017 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1019 mrproper: clean archmrproper $(mrproper-dirs)
1028 @find $(srctree) $(RCS_FIND_IGNORE) \
1029 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1030 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1031 -o -name '.*.rej' -o -size 0 \
1032 -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
1033 -type f -print | xargs rm -f
1036 # Packaging of the kernel to various formats
1037 # ---------------------------------------------------------------------------
1038 # rpm target kept for backward compatibility
1039 package-dir := $(srctree)/scripts/package
1044 $(Q)$(MAKE) -f $(package-dir)/Makefile $@
1046 $(Q)$(MAKE) -f $(package-dir)/Makefile $@
1049 # Brief documentation of the typical targets used
1050 # ---------------------------------------------------------------------------
1052 boards := $(wildcard $(srctree)/arch/$(ARCH)/configs/*_defconfig)
1053 boards := $(notdir $(boards))
1056 @echo 'Cleaning targets:'
1057 @echo ' clean - remove most generated files but keep the config'
1058 @echo ' mrproper - remove all generated files + config + various backup files'
1060 @echo 'Configuration targets:'
1061 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1063 @echo 'Other generic targets:'
1064 @echo ' all - Build all targets marked with [*]'
1065 @echo '* vmlinux - Build the bare kernel'
1066 @echo '* modules - Build all modules'
1067 @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
1068 @echo ' dir/ - Build all files in dir and below'
1069 @echo ' dir/file.[ois] - Build specified target only'
1070 @echo ' dir/file.ko - Build module including final link'
1071 @echo ' rpm - Build a kernel as an RPM package'
1072 @echo ' tags/TAGS - Generate tags file for editors'
1073 @echo ' cscope - Generate cscope index'
1074 @echo ' kernelrelease - Output the release version string'
1076 @echo 'Static analysers'
1077 @echo ' buildcheck - List dangling references to vmlinux discarded sections'
1078 @echo ' and init sections from non-init sections'
1079 @echo ' checkstack - Generate a list of stack hogs'
1080 @echo ' namespacecheck - Name space analysis on compiled kernel'
1082 @echo 'Kernel packaging:'
1083 @$(MAKE) -f $(package-dir)/Makefile help
1085 @echo 'Documentation targets:'
1086 @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp
1088 @echo 'Architecture specific targets ($(ARCH)):'
1089 @$(if $(archhelp),$(archhelp),\
1090 echo ' No architecture specific help defined for $(ARCH)')
1093 $(foreach b, $(boards), \
1094 printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \
1097 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1098 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1099 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse)'
1100 @echo ' make C=2 [targets] Force check of all c source with $$CHECK (sparse)'
1102 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1103 @echo 'For further info see the ./README file'
1106 # Documentation targets
1107 # ---------------------------------------------------------------------------
1108 %docs: scripts_basic FORCE
1109 $(Q)$(MAKE) $(build)=Documentation/DocBook $@
1111 else # KBUILD_EXTMOD
1114 # External module support.
1115 # When building external modules the kernel used as basis is considered
1116 # read-only, and no consistency checks are made and the make
1117 # system is not used on the basis kernel. If updates are required
1118 # in the basis kernel ordinary make commands (without M=...) must
1121 # The following are the only valid targets when building external
1123 # make M=dir clean Delete all automatically generated files
1124 # make M=dir modules Make all modules in specified dir
1125 # make M=dir Same as 'make M=dir modules'
1126 # make M=dir modules_install
1127 # Install the modules build in the module directory
1128 # Assumes install directory is already created
1130 # We are always building modules
1134 $(Q)mkdir -p $(MODVERDIR)
1136 .PHONY: $(objtree)/Module.symvers
1137 $(objtree)/Module.symvers:
1138 @test -e $(objtree)/Module.symvers || ( \
1140 echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \
1141 echo " is missing; modules will have no dependencies and modversions."; \
1144 module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))
1145 .PHONY: $(module-dirs) modules
1146 $(module-dirs): crmodverdir $(objtree)/Module.symvers
1147 $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
1149 modules: $(module-dirs)
1150 @echo ' Building modules, stage 2.';
1151 $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
1153 .PHONY: modules_install
1155 $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modinst
1157 clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))
1159 .PHONY: $(clean-dirs) clean
1161 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1163 clean: rm-dirs := $(MODVERDIR)
1164 clean: $(clean-dirs)
1166 @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \
1167 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1168 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \
1169 -type f -print | xargs rm -f
1172 @echo ' Building external modules.'
1173 @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target'
1175 @echo ' modules - default target, build the module(s)'
1176 @echo ' modules_install - install the module'
1177 @echo ' clean - remove generated files in module directory only'
1179 endif # KBUILD_EXTMOD
1181 # Generate tags for editors
1182 # ---------------------------------------------------------------------------
1184 #We want __srctree to totally vanish out when KBUILD_OUTPUT is not set
1185 #(which is the most common case IMHO) to avoid unneeded clutter in the big tags file.
1186 #Adding $(srctree) adds about 20M on i386 to the size of the output file!
1188 ifeq ($(src),$(obj))
1191 __srctree = $(srctree)/
1194 ifeq ($(ALLSOURCE_ARCHS),)
1196 ALLINCLUDE_ARCHS := $(ARCH) $(SUBARCH)
1198 ALLINCLUDE_ARCHS := $(ARCH)
1201 #Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behaviour.
1202 ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS)
1205 ALLSOURCE_ARCHS := $(ARCH)
1208 ( find $(__srctree) $(RCS_FIND_IGNORE) \
1209 \( -name include -o -name arch \) -prune -o \
1210 -name '*.[chS]' -print; \
1211 for ARCH in $(ALLSOURCE_ARCHS) ; do \
1212 find $(__srctree)arch/$${ARCH} $(RCS_FIND_IGNORE) \
1213 -name '*.[chS]' -print; \
1215 find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \
1216 -name '*.[chS]' -print; \
1217 find $(__srctree)include $(RCS_FIND_IGNORE) \
1218 \( -name config -o -name 'asm-*' \) -prune \
1219 -o -name '*.[chS]' -print; \
1220 for ARCH in $(ALLINCLUDE_ARCHS) ; do \
1221 find $(__srctree)include/asm-$${ARCH} $(RCS_FIND_IGNORE) \
1222 -name '*.[chS]' -print; \
1224 find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \
1225 -name '*.[chS]' -print )
1228 quiet_cmd_cscope-file = FILELST cscope.files
1229 cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files
1231 quiet_cmd_cscope = MAKE cscope.out
1232 cmd_cscope = cscope -b
1235 $(call cmd,cscope-file)
1238 quiet_cmd_TAGS = MAKE $@
1241 ETAGSF=`etags --version | grep -i exuberant >/dev/null && \
1242 echo "-I __initdata,__exitdata,__acquires,__releases \
1243 -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
1244 --extra=+f --c-kinds=+px"`; \
1245 $(all-sources) | xargs etags $$ETAGSF -a
1252 quiet_cmd_tags = MAKE $@
1255 CTAGSF=`ctags --version | grep -i exuberant >/dev/null && \
1256 echo "-I __initdata,__exitdata,__acquires,__releases \
1257 -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
1258 --extra=+f --c-kinds=+px"`; \
1259 $(all-sources) | xargs ctags $$CTAGSF -a
1266 # Scripts to check various things for consistency
1267 # ---------------------------------------------------------------------------
1270 find * $(RCS_FIND_IGNORE) \
1271 -name '*.[hcS]' -type f -print | sort \
1272 | xargs $(PERL) -w scripts/checkincludes.pl
1275 find * $(RCS_FIND_IGNORE) \
1276 -name '*.[hcS]' -type f -print | sort \
1277 | xargs $(PERL) -w scripts/checkversion.pl
1280 $(PERL) $(srctree)/scripts/reference_discarded.pl
1281 $(PERL) $(srctree)/scripts/reference_init.pl
1284 $(PERL) $(srctree)/scripts/namespace.pl
1286 endif #ifeq ($(config-targets),1)
1287 endif #ifeq ($(mixed-targets),1)
1291 $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
1292 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1295 @echo $(KERNELRELEASE)
1297 # FIXME Should go into a make.lib or something
1298 # ===========================================================================
1300 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1301 cmd_rmdirs = rm -rf $(rm-dirs)
1303 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1304 cmd_rmfiles = rm -f $(rm-files)
1307 a_flags = -Wp,-MD,$(depfile) $(AFLAGS) $(AFLAGS_KERNEL) \
1308 $(NOSTDINC_FLAGS) $(CPPFLAGS) \
1309 $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(*F).o)
1311 quiet_cmd_as_o_S = AS $@
1312 cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
1314 # read all saved command lines
1316 targets := $(wildcard $(sort $(targets)))
1317 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1319 ifneq ($(cmd_files),)
1320 $(cmd_files): ; # Do not try to update included dependency files
1321 include $(cmd_files)
1324 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
1326 # $(Q)$(MAKE) $(clean)=dir
1327 clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
1329 endif # skip-makefile