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 $(Q) - that's usefull
255 # for commands that shall be hidden in non-verbose mode.
259 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
260 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
262 ifeq ($(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 ;)
289 # For backward compatibility
290 check_gcc = $(warning check_gcc is deprecated - use cc-option) \
291 $(call cc-option, $(1),$(2))
294 # Usage: flag := $(call cc-option-yn, -march=winchip-c6)
295 cc-option-yn = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
296 > /dev/null 2>&1; then echo "y"; else echo "n"; fi;)
299 # Prefix align with either -falign or -malign
300 cc-option-align = $(subst -functions=0,,\
301 $(call cc-option,-falign-functions=0,-malign-functions=0))
304 # Usage gcc-ver := $(call cc-version $(CC))
305 cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh \
306 $(if $(1), $(1), $(CC)))
309 # Look for make include files relative to root of kernel src
310 MAKEFLAGS += --include-dir=$(srctree)
312 # We need some generic definitions
313 include $(srctree)/scripts/Kbuild.include
315 # For maximum performance (+ possibly random breakage, uncomment
320 # Make variables (CC, etc...)
322 AS = $(CROSS_COMPILE)as
323 LD = $(CROSS_COMPILE)ld
324 CC = $(CROSS_COMPILE)gcc
326 AR = $(CROSS_COMPILE)ar
327 NM = $(CROSS_COMPILE)nm
328 STRIP = $(CROSS_COMPILE)strip
329 OBJCOPY = $(CROSS_COMPILE)objcopy
330 OBJDUMP = $(CROSS_COMPILE)objdump
332 GENKSYMS = scripts/genksyms/genksyms
333 DEPMOD = /sbin/depmod
334 KALLSYMS = scripts/kallsyms
338 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise $(CF)
340 CFLAGS_MODULE = $(MODFLAGS)
341 AFLAGS_MODULE = $(MODFLAGS)
347 # Use LINUXINCLUDE when you must reference the include/ directory.
348 # Needed to be compatible with the O= option
349 LINUXINCLUDE := -Iinclude \
350 $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \
351 -include include/linux/autoconf.h
353 CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)
355 CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
356 -fno-strict-aliasing -fno-common \
358 AFLAGS := -D__ASSEMBLY__
360 export VERSION PATCHLEVEL SUBLEVEL EXTRAVERSION LOCALVERSION KERNELRELEASE \
361 ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \
362 CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE \
363 HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
365 export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
366 export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
367 export AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
369 # When compiling out-of-tree modules, put MODVERDIR in the module
370 # tree rather than in the kernel tree. The kernel tree might
372 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
374 # Files to ignore in find ... statements
376 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
377 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git
379 # ===========================================================================
380 # Rules shared between *config targets and build targets
382 # Basic helpers built in scripts/
383 .PHONY: scripts_basic
385 $(Q)$(MAKE) $(build)=scripts/basic
387 # To avoid any implicit rule to kick in, define an empty command.
388 scripts/basic/%: scripts_basic ;
390 .PHONY: outputmakefile
391 # outputmakefile generate a Makefile to be placed in output directory, if
392 # using a seperate output directory. This allows convinient use
393 # of make in output directory
395 $(Q)if test ! $(srctree) -ef $(objtree); then \
396 $(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
397 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) \
398 > $(objtree)/Makefile; \
399 echo ' GEN $(objtree)/Makefile'; \
402 # To make sure we do not include .config for any of the *config targets
403 # catch them early, and hand them over to scripts/kconfig/Makefile
404 # It is allowed to specify more targets when calling make, including
405 # mixing *config targets and build targets.
406 # For example 'make oldconfig all'.
407 # Detect when mixed targets is specified, and make a second invocation
408 # of make so .config is not included in this case either (for *config).
410 no-dot-config-targets := clean mrproper distclean \
411 cscope TAGS tags help %docs check%
417 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
418 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
423 ifeq ($(KBUILD_EXTMOD),)
424 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
426 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
432 ifeq ($(mixed-targets),1)
433 # ===========================================================================
434 # We're called with mixed targets (*config and build targets).
435 # Handle them one by one.
438 $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@
441 ifeq ($(config-targets),1)
442 # ===========================================================================
443 # *config targets only - make sure prerequisites are updated, and descend
444 # in scripts/kconfig to make the *config target
446 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
447 # KBUILD_DEFCONFIG may point out an alternative default configuration
448 # used for 'make defconfig'
449 include $(srctree)/arch/$(ARCH)/Makefile
450 export KBUILD_DEFCONFIG
452 config %config: scripts_basic outputmakefile FORCE
453 $(Q)mkdir -p include/linux
454 $(Q)$(MAKE) $(build)=scripts/kconfig $@
457 # ===========================================================================
458 # Build targets only - this includes vmlinux, arch specific targets, clean
459 # targets and others. In general all targets except *config targets.
461 ifeq ($(KBUILD_EXTMOD),)
462 # Additional helpers built in scripts/
463 # Carefully list dependencies so we do not try to build scripts twice
466 scripts: scripts_basic include/config/MARKER
467 $(Q)$(MAKE) $(build)=$(@)
469 scripts_basic: include/linux/autoconf.h
471 # Objects we will link into vmlinux / subdirs we need to visit
473 drivers-y := drivers/ sound/
477 endif # KBUILD_EXTMOD
479 ifeq ($(dot-config),1)
480 # In this section, we need .config
482 # Read in dependencies to all Kconfig* files, make sure to run
483 # oldconfig if changes are detected.
488 # If .config needs to be updated, it will be done via the dependency
489 # that autoconf has on .config.
490 # To avoid any implicit rule to kick in, define an empty command
493 # If .config is newer than include/linux/autoconf.h, someone tinkered
494 # with it and forgot to run make oldconfig
495 include/linux/autoconf.h: .config
496 $(Q)mkdir -p include/linux
497 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
499 # Dummy target needed, because used as prerequisite
500 include/linux/autoconf.h: ;
503 # The all: target is the default when no target is given on the
505 # This allow a user to issue only 'make' to build a kernel including modules
506 # Defaults vmlinux but it is usually overriden in the arch makefile
509 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
515 #Add align options if CONFIG_CC_* is not equal to 0
516 add-align = $(if $(filter-out 0,$($(1))),$(cc-option-align)$(2)=$($(1)))
517 CFLAGS += $(call add-align,CONFIG_CC_ALIGN_FUNCTIONS,-functions)
518 CFLAGS += $(call add-align,CONFIG_CC_ALIGN_LABELS,-labels)
519 CFLAGS += $(call add-align,CONFIG_CC_ALIGN_LOOPS,-loops)
520 CFLAGS += $(call add-align,CONFIG_CC_ALIGN_JUMPS,-jumps)
522 ifdef CONFIG_FRAME_POINTER
523 CFLAGS += -fno-omit-frame-pointer $(call cc-option,-fno-optimize-sibling-calls,)
525 CFLAGS += -fomit-frame-pointer
528 ifdef CONFIG_DEBUG_INFO
532 include $(srctree)/arch/$(ARCH)/Makefile
534 # arch Makefile may override CC so keep this after arch Makefile is included
535 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
536 CHECKFLAGS += $(NOSTDINC_FLAGS)
538 # warn about C99 declaration after statement
539 CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
541 # disable pointer signedness warnings in gcc 4.0
542 CFLAGS += $(call cc-option,-Wno-pointer-sign,)
544 # Default kernel image to build when no specific target is given.
545 # KBUILD_IMAGE may be overruled on the commandline or
546 # set in the environment
547 # Also any assignments in arch/$(ARCH)/Makefile take precedence over
549 export KBUILD_IMAGE ?= vmlinux
552 # INSTALL_PATH specifies where to place the updated kernel and system map
553 # images. Default is /boot, but you can set it to other values
554 export INSTALL_PATH ?= /boot
556 # If CONFIG_LOCALVERSION_AUTO is set, we automatically perform some tests
557 # and try to determine if the current source tree is a release tree, of any sort,
558 # or if is a pure development tree.
560 # A 'release tree' is any tree with a git TAG associated
561 # with it. The primary goal of this is to make it safe for a native
562 # git/CVS/SVN user to build a release tree (i.e, 2.6.9) and also to
563 # continue developing against the current Linus tree, without having the Linus
564 # tree overwrite the 2.6.9 tree when installed.
566 # Currently, only git is supported.
567 # Other SCMs can edit scripts/setlocalversion and add the appropriate
571 ifdef CONFIG_LOCALVERSION_AUTO
572 localversion-auto := $(shell $(PERL) $(srctree)/scripts/setlocalversion $(srctree))
573 LOCALVERSION := $(LOCALVERSION)$(localversion-auto)
577 # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
578 # relocations required by build roots. This is not defined in the
579 # makefile but the arguement can be passed to make if needed.
582 MODLIB := $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
586 ifeq ($(KBUILD_EXTMOD),)
587 core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
589 vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
590 $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
591 $(net-y) $(net-m) $(libs-y) $(libs-m)))
593 vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \
595 $(core-n) $(core-) $(drivers-n) $(drivers-) \
596 $(net-n) $(net-) $(libs-n) $(libs-))))
598 init-y := $(patsubst %/, %/built-in.o, $(init-y))
599 core-y := $(patsubst %/, %/built-in.o, $(core-y))
600 drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y))
601 net-y := $(patsubst %/, %/built-in.o, $(net-y))
602 libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))
603 libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))
604 libs-y := $(libs-y1) $(libs-y2)
607 # ---------------------------------------------------------------------------
608 # vmlinux is build from the objects selected by $(vmlinux-init) and
609 # $(vmlinux-main). Most are built-in.o files from top-level directories
610 # in the kernel tree, others are specified in arch/$(ARCH)Makefile.
611 # Ordering when linking is important, and $(vmlinux-init) must be first.
616 # +-< $(vmlinux-init)
617 # | +--< init/version.o + more
619 # +--< $(vmlinux-main)
620 # | +--< driver/built-in.o mm/built-in.o + more
622 # +-< kallsyms.o (see description in CONFIG_KALLSYMS section)
624 # vmlinux version (uname -v) cannot be updated during normal
625 # descending-into-subdirs phase since we do not yet know if we need to
627 # Therefore this step is delayed until just before final link of vmlinux -
628 # except in the kallsyms case where it is done just before adding the
629 # symbols to the kernel.
631 # System.map is generated to document addresses of all kernel symbols
633 vmlinux-init := $(head-y) $(init-y)
634 vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y)
635 vmlinux-all := $(vmlinux-init) $(vmlinux-main)
636 vmlinux-lds := arch/$(ARCH)/kernel/vmlinux.lds
638 # Rule to link vmlinux - also used during CONFIG_KALLSYMS
639 # May be overridden by arch/$(ARCH)/Makefile
640 quiet_cmd_vmlinux__ ?= LD $@
641 cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \
642 -T $(vmlinux-lds) $(vmlinux-init) \
643 --start-group $(vmlinux-main) --end-group \
644 $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) FORCE ,$^)
646 # Generate new vmlinux version
647 quiet_cmd_vmlinux_version = GEN .version
648 cmd_vmlinux_version = set -e; \
649 if [ ! -r .version ]; then \
653 mv .version .old_version; \
654 expr 0$$(cat .old_version) + 1 >.version; \
656 $(MAKE) $(build)=init
658 # Generate System.map
659 quiet_cmd_sysmap = SYSMAP
660 cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
663 # If CONFIG_KALLSYMS is set .version is already updated
664 # Generate System.map and verify that the content is consistent
665 # Use + in front of the vmlinux_version rule to silent warning with make -j2
666 # First command is ':' to allow us to use + in front of the rule
667 define rule_vmlinux__
669 $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version))
671 $(call cmd,vmlinux__)
672 $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd
674 $(Q)$(if $($(quiet)cmd_sysmap), \
675 echo ' $($(quiet)cmd_sysmap) System.map' &&) \
676 $(cmd_sysmap) $@ System.map; \
677 if [ $$? -ne 0 ]; then \
685 ifdef CONFIG_KALLSYMS
686 # Generate section listing all symbols and add it into vmlinux $(kallsyms.o)
687 # It's a three stage process:
688 # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is
690 # Running kallsyms on that gives us .tmp_kallsyms1.o with
691 # the right size - vmlinux version (uname -v) is updated during this step
692 # o .tmp_vmlinux2 now has a __kallsyms section of the right size,
693 # but due to the added section, some addresses have shifted.
694 # From here, we generate a correct .tmp_kallsyms2.o
695 # o The correct .tmp_kallsyms2.o is linked into the final vmlinux.
696 # o Verify that the System.map from vmlinux matches the map from
697 # .tmp_vmlinux2, just in case we did not generate kallsyms correctly.
698 # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using
699 # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a
700 # temporary bypass to allow the kernel to be built while the
701 # maintainers work out what went wrong with kallsyms.
703 ifdef CONFIG_KALLSYMS_EXTRA_PASS
709 kallsyms.o := .tmp_kallsyms$(last_kallsyms).o
711 define verify_kallsyms
712 $(Q)$(if $($(quiet)cmd_sysmap), \
713 echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \
714 $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map
715 $(Q)cmp -s System.map .tmp_System.map || \
716 (echo Inconsistent kallsyms data; \
717 echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \
718 rm .tmp_kallsyms* ; /bin/false )
721 # Update vmlinux version before link
722 # Use + in front of this rule to silent warning about make -j1
723 # First command is ':' to allow us to use + in front of this rule
724 cmd_ksym_ld = $(cmd_vmlinux__)
727 +$(call cmd,vmlinux_version)
728 $(call cmd,vmlinux__)
729 $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd
732 # Generate .S file with all kernel symbols
733 quiet_cmd_kallsyms = KSYM $@
734 cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \
735 $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@
737 .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE
738 $(call if_changed_dep,as_o_S)
740 .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS)
743 # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version
744 .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE
745 $(call if_changed_rule,ksym_ld)
747 .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE
748 $(call if_changed,vmlinux__)
750 .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE
751 $(call if_changed,vmlinux__)
753 # Needs to visit scripts/ before $(KALLSYMS) can be used.
754 $(KALLSYMS): scripts ;
756 # Generate some data for debugging strange kallsyms problems
757 debug_kallsyms: .tmp_map$(last_kallsyms)
759 .tmp_map%: .tmp_vmlinux% FORCE
760 ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@
766 endif # ifdef CONFIG_KALLSYMS
768 # vmlinux image - including updated kernel symbols
769 vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) FORCE
770 $(call if_changed_rule,vmlinux__)
771 $(Q)rm -f .old_version
773 # The actual objects are generated when descending,
774 # make sure no implicit rule kicks in
775 $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ;
777 # Handle descending into subdirectories listed in $(vmlinux-dirs)
778 # Preset locale variables to speed up the build process. Limit locale
779 # tweaks to this spot to avoid wrong language settings when running
780 # make menuconfig etc.
781 # Error messages still appears in the original language
783 .PHONY: $(vmlinux-dirs)
784 $(vmlinux-dirs): prepare scripts
785 $(Q)$(MAKE) $(build)=$@
787 # Things we need to do before we recursively start building the kernel
788 # or the modules are listed in "prepare".
789 # A multi level approach is used. prepareN is processed before prepareN-1.
790 # archprepare is used in arch Makefiles and when processed asm symlink,
791 # version.h and scripts_basic is processed / created.
793 # Listed in dependency order
794 .PHONY: prepare archprepare prepare0 prepare1 prepare2 prepare3
796 # prepare-all is deprecated, use prepare as valid replacement
799 # prepare3 is used to check if we are building in a separate output directory,
801 # 1) Check that make has not been executed in the kernel src $(srctree)
802 # 2) Create the include2 directory, used for the second asm symlink
805 ifneq ($(KBUILD_SRC),)
806 @echo ' Using $(srctree) as source for kernel'
807 $(Q)if [ -f $(srctree)/.config ]; then \
808 echo " $(srctree) is not clean, please run 'make mrproper'";\
809 echo " in the '$(srctree)' directory.";\
812 $(Q)if [ ! -d include2 ]; then mkdir -p include2; fi;
813 $(Q)ln -fsn $(srctree)/include/asm-$(ARCH) include2/asm
816 # prepare2 creates a makefile if using a separate output directory
817 prepare2: prepare3 outputmakefile
819 prepare1: prepare2 include/linux/version.h include/asm \
820 include/config/MARKER
821 ifneq ($(KBUILD_MODULES),)
822 $(Q)rm -rf $(MODVERDIR)
823 $(Q)mkdir -p $(MODVERDIR)
826 archprepare: prepare1 scripts_basic
828 prepare0: archprepare FORCE
829 $(Q)$(MAKE) $(build)=.
831 # All the preparing..
832 prepare prepare-all: prepare0
834 # Leave this as default for preprocessing vmlinux.lds.S, which is now
835 # done in arch/$(ARCH)/kernel/Makefile
837 export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
840 # ---------------------------------------------------------------------------
842 %.s: %.c scripts FORCE
843 $(Q)$(MAKE) $(build)=$(@D) $@
844 %.i: %.c scripts FORCE
845 $(Q)$(MAKE) $(build)=$(@D) $@
846 %.o: %.c scripts FORCE
847 $(Q)$(MAKE) $(build)=$(@D) $@
849 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) $(build)=$(@D) $(@:.ko=.o)
850 $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
851 %/: scripts prepare FORCE
852 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) $(build)=$(@D)
853 %.lst: %.c scripts FORCE
854 $(Q)$(MAKE) $(build)=$(@D) $@
855 %.s: %.S scripts FORCE
856 $(Q)$(MAKE) $(build)=$(@D) $@
857 %.o: %.S scripts FORCE
858 $(Q)$(MAKE) $(build)=$(@D) $@
860 # FIXME: The asm symlink changes when $(ARCH) changes. That's
861 # hard to detect, but I suppose "make mrproper" is a good idea
862 # before switching between archs anyway.
865 @echo ' SYMLINK $@ -> include/asm-$(ARCH)'
866 $(Q)if [ ! -d include ]; then mkdir -p include; fi;
867 @ln -fsn asm-$(ARCH) $@
869 # Split autoconf.h into include/linux/config/*
871 include/config/MARKER: scripts/basic/split-include include/linux/autoconf.h
872 @echo ' SPLIT include/linux/autoconf.h -> include/config/*'
873 @scripts/basic/split-include include/linux/autoconf.h include/config
876 # Generate some files
877 # ---------------------------------------------------------------------------
879 # KERNELRELEASE can change from a few different places, meaning version.h
880 # needs to be updated, so this check is forced on all builds
884 define filechk_version.h
885 if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \
886 echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \
889 (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\"; \
890 echo \#define LINUX_VERSION_CODE `expr $(VERSION) \\* 65536 + $(PATCHLEVEL) \\* 256 + $(SUBLEVEL)`; \
891 echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))'; \
895 include/linux/version.h: $(srctree)/Makefile FORCE
896 $(call filechk,version.h)
898 # ---------------------------------------------------------------------------
902 @echo '*** Warning: make $@ is unnecessary now.'
904 # ---------------------------------------------------------------------------
909 # By default, build modules as well
916 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)
917 @echo ' Building modules, stage 2.';
918 $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
921 # Target to prepare building external modules
922 .PHONY: modules_prepare
923 modules_prepare: prepare scripts
925 # Target to install modules
926 .PHONY: modules_install
927 modules_install: _modinst_ _modinst_post
931 @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \
932 echo "Warning: you may need to install module-init-tools"; \
933 echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\
936 @rm -rf $(MODLIB)/kernel
937 @rm -f $(MODLIB)/source
938 @mkdir -p $(MODLIB)/kernel
939 @ln -s $(srctree) $(MODLIB)/source
940 @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \
941 rm -f $(MODLIB)/build ; \
942 ln -s $(objtree) $(MODLIB)/build ; \
944 $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modinst
946 # If System.map exists, run depmod. This deliberately does not have a
947 # dependency on System.map since that would run the dependency tree on
948 # vmlinux. This depmod is only for convenience to give the initial
949 # boot a modules.dep even before / is mounted read-write. However the
950 # boot script depmod is the master version.
951 ifeq "$(strip $(INSTALL_MOD_PATH))" ""
954 depmod_opts := -b $(INSTALL_MOD_PATH) -r
956 .PHONY: _modinst_post
957 _modinst_post: _modinst_
958 if [ -r System.map -a -x $(DEPMOD) ]; then $(DEPMOD) -ae -F System.map $(depmod_opts) $(KERNELRELEASE); fi
960 else # CONFIG_MODULES
962 # Modules not configured
963 # ---------------------------------------------------------------------------
965 modules modules_install: FORCE
967 @echo "The present kernel configuration has modules disabled."
968 @echo "Type 'make config' and enable loadable module support."
969 @echo "Then build a kernel with module support enabled."
973 endif # CONFIG_MODULES
976 # Cleaning is done on three levels.
977 # make clean Delete most generated files
978 # Leave enough to build external modules
979 # make mrproper Delete the current configuration, and all generated files
980 # make distclean Remove editor backup files, patch leftover files and the like
982 # Directories & files removed with 'make clean'
983 CLEAN_DIRS += $(MODVERDIR)
984 CLEAN_FILES += vmlinux System.map \
985 .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map
987 # Directories & files removed with 'make mrproper'
988 MRPROPER_DIRS += include/config include2
989 MRPROPER_FILES += .config .config.old include/asm .version \
990 include/linux/autoconf.h include/linux/version.h \
991 Module.symvers tags TAGS cscope*
993 # clean - Delete most, but leave enough to build external modules
995 clean: rm-dirs := $(CLEAN_DIRS)
996 clean: rm-files := $(CLEAN_FILES)
997 clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs))
999 .PHONY: $(clean-dirs) clean archclean
1001 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1003 clean: archclean $(clean-dirs)
1006 @find . $(RCS_FIND_IGNORE) \
1007 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1008 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \
1009 -type f -print | xargs rm -f
1011 # mrproper - Delete all generated files, including .config
1013 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1014 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1015 mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)
1017 .PHONY: $(mrproper-dirs) mrproper archmrproper
1019 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1021 mrproper: clean archmrproper $(mrproper-dirs)
1030 @find $(srctree) $(RCS_FIND_IGNORE) \
1031 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1032 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1033 -o -name '.*.rej' -o -size 0 \
1034 -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
1035 -type f -print | xargs rm -f
1038 # Packaging of the kernel to various formats
1039 # ---------------------------------------------------------------------------
1040 # rpm target kept for backward compatibility
1041 package-dir := $(srctree)/scripts/package
1046 $(Q)$(MAKE) -f $(package-dir)/Makefile $@
1048 $(Q)$(MAKE) -f $(package-dir)/Makefile $@
1051 # Brief documentation of the typical targets used
1052 # ---------------------------------------------------------------------------
1054 boards := $(wildcard $(srctree)/arch/$(ARCH)/configs/*_defconfig)
1055 boards := $(notdir $(boards))
1058 @echo 'Cleaning targets:'
1059 @echo ' clean - remove most generated files but keep the config'
1060 @echo ' mrproper - remove all generated files + config + various backup files'
1062 @echo 'Configuration targets:'
1063 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1065 @echo 'Other generic targets:'
1066 @echo ' all - Build all targets marked with [*]'
1067 @echo '* vmlinux - Build the bare kernel'
1068 @echo '* modules - Build all modules'
1069 @echo ' modules_install - Install all modules'
1070 @echo ' dir/ - Build all files in dir and below'
1071 @echo ' dir/file.[ois] - Build specified target only'
1072 @echo ' dir/file.ko - Build module including final link'
1073 @echo ' rpm - Build a kernel as an RPM package'
1074 @echo ' tags/TAGS - Generate tags file for editors'
1075 @echo ' cscope - Generate cscope index'
1076 @echo ' kernelrelease - Output the release version string'
1078 @echo 'Static analysers'
1079 @echo ' buildcheck - List dangling references to vmlinux discarded sections'
1080 @echo ' and init sections from non-init sections'
1081 @echo ' checkstack - Generate a list of stack hogs'
1082 @echo ' namespacecheck - Name space analysis on compiled kernel'
1084 @echo 'Kernel packaging:'
1085 @$(MAKE) -f $(package-dir)/Makefile help
1087 @echo 'Documentation targets:'
1088 @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp
1090 @echo 'Architecture specific targets ($(ARCH)):'
1091 @$(if $(archhelp),$(archhelp),\
1092 echo ' No architecture specific help defined for $(ARCH)')
1095 $(foreach b, $(boards), \
1096 printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \
1099 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1100 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1101 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse)'
1102 @echo ' make C=2 [targets] Force check of all c source with $$CHECK (sparse)'
1104 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1105 @echo 'For further info see the ./README file'
1108 # Documentation targets
1109 # ---------------------------------------------------------------------------
1110 %docs: scripts_basic FORCE
1111 $(Q)$(MAKE) $(build)=Documentation/DocBook $@
1113 else # KBUILD_EXTMOD
1116 # External module support.
1117 # When building external modules the kernel used as basis is considered
1118 # read-only, and no consistency checks are made and the make
1119 # system is not used on the basis kernel. If updates are required
1120 # in the basis kernel ordinary make commands (without M=...) must
1123 # The following are the only valid targets when building external
1125 # make M=dir clean Delete all automatically generated files
1126 # make M=dir modules Make all modules in specified dir
1127 # make M=dir Same as 'make M=dir modules'
1128 # make M=dir modules_install
1129 # Install the modules build in the module directory
1130 # Assumes install directory is already created
1132 # We are always building modules
1136 $(Q)mkdir -p $(MODVERDIR)
1138 .PHONY: $(objtree)/Module.symvers
1139 $(objtree)/Module.symvers:
1140 @test -e $(objtree)/Module.symvers || ( \
1142 echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \
1143 echo " is missing; modules will have no dependencies and modversions."; \
1146 module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))
1147 .PHONY: $(module-dirs) modules
1148 $(module-dirs): crmodverdir $(objtree)/Module.symvers
1149 $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
1151 modules: $(module-dirs)
1152 @echo ' Building modules, stage 2.';
1153 $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
1155 .PHONY: modules_install
1157 $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modinst
1159 clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))
1161 .PHONY: $(clean-dirs) clean
1163 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1165 clean: rm-dirs := $(MODVERDIR)
1166 clean: $(clean-dirs)
1168 @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \
1169 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1170 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \
1171 -type f -print | xargs rm -f
1174 @echo ' Building external modules.'
1175 @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target'
1177 @echo ' modules - default target, build the module(s)'
1178 @echo ' modules_install - install the module'
1179 @echo ' clean - remove generated files in module directory only'
1181 endif # KBUILD_EXTMOD
1183 # Generate tags for editors
1184 # ---------------------------------------------------------------------------
1186 #We want __srctree to totally vanish out when KBUILD_OUTPUT is not set
1187 #(which is the most common case IMHO) to avoid unneeded clutter in the big tags file.
1188 #Adding $(srctree) adds about 20M on i386 to the size of the output file!
1190 ifeq ($(src),$(obj))
1193 __srctree = $(srctree)/
1196 ifeq ($(ALLSOURCE_ARCHS),)
1198 ALLINCLUDE_ARCHS := $(ARCH) $(SUBARCH)
1200 ALLINCLUDE_ARCHS := $(ARCH)
1203 #Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behaviour.
1204 ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS)
1207 ALLSOURCE_ARCHS := $(ARCH)
1210 ( find $(__srctree) $(RCS_FIND_IGNORE) \
1211 \( -name include -o -name arch \) -prune -o \
1212 -name '*.[chS]' -print; \
1213 for ARCH in $(ALLSOURCE_ARCHS) ; do \
1214 find $(__srctree)arch/$${ARCH} $(RCS_FIND_IGNORE) \
1215 -name '*.[chS]' -print; \
1217 find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \
1218 -name '*.[chS]' -print; \
1219 find $(__srctree)include $(RCS_FIND_IGNORE) \
1220 \( -name config -o -name 'asm-*' \) -prune \
1221 -o -name '*.[chS]' -print; \
1222 for ARCH in $(ALLINCLUDE_ARCHS) ; do \
1223 find $(__srctree)include/asm-$${ARCH} $(RCS_FIND_IGNORE) \
1224 -name '*.[chS]' -print; \
1226 find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \
1227 -name '*.[chS]' -print )
1230 quiet_cmd_cscope-file = FILELST cscope.files
1231 cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files
1233 quiet_cmd_cscope = MAKE cscope.out
1234 cmd_cscope = cscope -b
1237 $(call cmd,cscope-file)
1240 quiet_cmd_TAGS = MAKE $@
1243 ETAGSF=`etags --version | grep -i exuberant >/dev/null && echo "-I __initdata,__exitdata,EXPORT_SYMBOL,EXPORT_SYMBOL_GPL --extra=+f"`; \
1244 $(all-sources) | xargs etags $$ETAGSF -a
1251 quiet_cmd_tags = MAKE $@
1254 CTAGSF=`ctags --version | grep -i exuberant >/dev/null && echo "-I __initdata,__exitdata,EXPORT_SYMBOL,EXPORT_SYMBOL_GPL --extra=+f"`; \
1255 $(all-sources) | xargs ctags $$CTAGSF -a
1262 # Scripts to check various things for consistency
1263 # ---------------------------------------------------------------------------
1266 find * $(RCS_FIND_IGNORE) \
1267 -name '*.[hcS]' -type f -print | sort \
1268 | xargs $(PERL) -w scripts/checkincludes.pl
1271 find * $(RCS_FIND_IGNORE) \
1272 -name '*.[hcS]' -type f -print | sort \
1273 | xargs $(PERL) -w scripts/checkversion.pl
1276 $(PERL) $(srctree)/scripts/reference_discarded.pl
1277 $(PERL) $(srctree)/scripts/reference_init.pl
1280 $(PERL) $(srctree)/scripts/namespace.pl
1282 endif #ifeq ($(config-targets),1)
1283 endif #ifeq ($(mixed-targets),1)
1287 $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
1288 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1291 @echo $(KERNELRELEASE)
1293 # FIXME Should go into a make.lib or something
1294 # ===========================================================================
1296 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1297 cmd_rmdirs = rm -rf $(rm-dirs)
1299 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1300 cmd_rmfiles = rm -f $(rm-files)
1303 a_flags = -Wp,-MD,$(depfile) $(AFLAGS) $(AFLAGS_KERNEL) \
1304 $(NOSTDINC_FLAGS) $(CPPFLAGS) \
1305 $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(*F).o)
1307 quiet_cmd_as_o_S = AS $@
1308 cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
1310 # read all saved command lines
1312 targets := $(wildcard $(sort $(targets)))
1313 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1315 ifneq ($(cmd_files),)
1316 $(cmd_files): ; # Do not try to update included dependency files
1317 include $(cmd_files)
1320 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
1322 # $(Q)$(MAKE) $(clean)=dir
1323 clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
1325 endif # skip-makefile