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