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
) cdbuilddir
110 $(MAKECMDGOALS
) _all
: cdbuilddir
113 $(if
$(KBUILD_VERBOSE
:1=),@
)$(MAKE
) -C
$(KBUILD_OUTPUT
) \
114 KBUILD_SRC
=$(CURDIR
) \
115 KBUILD_EXTMOD
="$(KBUILD_EXTMOD)" -f
$(CURDIR
)/Makefile
$(MAKECMDGOALS
)
117 # Leave processing to above invocation of make
119 endif # ifneq ($(KBUILD_OUTPUT),)
120 endif # ifeq ($(KBUILD_SRC),)
122 # We process the rest of the Makefile if this is the final invocation of make
123 ifeq ($(skip-makefile
),)
125 # If building an external module we do not care about the all: rule
126 # but instead _all depend on modules
128 ifeq ($(KBUILD_EXTMOD
),)
134 srctree
:= $(if
$(KBUILD_SRC
),$(KBUILD_SRC
),$(CURDIR
))
136 # FIXME - TOPDIR is obsolete, use srctree/objtree
143 export srctree objtree VPATH TOPDIR
146 # SUBARCH tells the usermode build what the underlying arch is. That is set
147 # first, and if a usermode build is happening, the "ARCH=um" on the command
148 # line overrides the setting of ARCH below. If a native build is happening,
149 # then ARCH is assigned, getting whatever value it gets normally, and
150 # SUBARCH is subsequently ignored.
152 SUBARCH
:= $(shell uname
-m | sed
-e s
/i
.86/i386
/ -e s
/sun4u
/sparc64
/ \
153 -e s
/arm.
*/arm
/ -e s
/sa110
/arm
/ \
154 -e s
/s390x
/s390
/ -e s
/parisc64
/parisc
/ \
155 -e s
/ppc.
*/powerpc
/ )
157 # Cross compiling and selecting different set of gcc/bin-utils
158 # ---------------------------------------------------------------------------
160 # When performing cross compilation for other architectures ARCH shall be set
161 # to the target architecture. (See arch/* for the possibilities).
162 # ARCH can be set during invocation of make:
164 # Another way is to have ARCH set in the environment.
165 # The default ARCH is the host where make is executed.
167 # CROSS_COMPILE specify the prefix used for all executables used
168 # during compilation. Only gcc and related bin-utils executables
169 # are prefixed with $(CROSS_COMPILE).
170 # CROSS_COMPILE can be set on the command line
171 # make CROSS_COMPILE=ia64-linux-
172 # Alternatively CROSS_COMPILE can be set in the environment.
173 # Default value for CROSS_COMPILE is not to prefix executables
174 # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
179 # Architecture as present in compile.h
180 UTS_MACHINE
:= $(ARCH
)
182 # SHELL used by kbuild
183 CONFIG_SHELL
:= $(shell if
[ -x
"$$BASH" ]; then echo
$$BASH; \
184 else if
[ -x
/bin
/bash
]; then echo
/bin
/bash
; \
185 else echo sh
; fi
; fi
)
189 HOSTCFLAGS
= -Wall
-Wstrict-prototypes
-O2
-fomit-frame-pointer
192 # Decide whether to build built-in, modular, or both.
193 # Normally, just do built-in.
198 # If we have only "make modules", don't compile built-in objects.
199 # When we're building modules with modversions, we need to consider
200 # the built-in objects during the descend as well, in order to
201 # make sure the checksums are uptodate before we record them.
203 ifeq ($(MAKECMDGOALS
),modules
)
204 KBUILD_BUILTIN
:= $(if
$(CONFIG_MODVERSIONS
),1)
207 # If we have "make <whatever> modules", compile modules
208 # in addition to whatever we do anyway.
209 # Just "make" or "make all" shall build modules as well
211 ifneq ($(filter all _all modules
,$(MAKECMDGOALS
)),)
215 ifeq ($(MAKECMDGOALS
),)
219 export KBUILD_MODULES KBUILD_BUILTIN
220 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
223 # ---------------------------------------------------------------------------
225 # Normally, we echo the whole command before executing it. By making
226 # that echo $($(quiet)$(cmd)), we now have the possibility to set
227 # $(quiet) to choose other forms of output instead, e.g.
229 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
230 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
232 # If $(quiet) is empty, the whole command will be printed.
233 # If it is set to "quiet_", only the short version will be printed.
234 # If it is set to "silent_", nothing wil be printed at all, since
235 # the variable $(silent_cmd_cc_o_c) doesn't exist.
237 # A simple variant is to prefix commands with $(Q) - that's useful
238 # for commands that shall be hidden in non-verbose mode.
242 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
243 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
245 ifeq ($(KBUILD_VERBOSE
),1)
253 # If the user is running make -s (silent mode), suppress echoing of
256 ifneq ($(findstring s
,$(MAKEFLAGS
)),)
260 export quiet Q KBUILD_VERBOSE
263 # cc support functions to be used (only) in arch/$(ARCH)/Makefile
264 # See documentation in Documentation/kbuild/makefiles.txt
267 # Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586)
269 cc-option
= $(shell if
$(CC
) $(CFLAGS
) $(1) -S
-o
/dev
/null
-xc
/dev
/null \
270 > /dev
/null
2>&1; then echo
"$(1)"; else echo
"$(2)"; fi
;)
273 # Usage: flag := $(call cc-option-yn, -march=winchip-c6)
274 cc-option-yn
= $(shell if
$(CC
) $(CFLAGS
) $(1) -S
-o
/dev
/null
-xc
/dev
/null \
275 > /dev
/null
2>&1; then echo
"y"; else echo
"n"; fi
;)
278 # Prefix align with either -falign or -malign
279 cc-option-align
= $(subst -functions
=0,,\
280 $(call cc-option
,-falign-functions
=0,-malign-functions
=0))
283 # Usage gcc-ver := $(call cc-version $(CC))
284 cc-version
= $(shell $(CONFIG_SHELL
) $(srctree
)/scripts
/gcc-version.sh \
285 $(if
$(1), $(1), $(CC
)))
288 # Look for make include files relative to root of kernel src
289 MAKEFLAGS
+= --include-dir
=$(srctree
)
291 # We need some generic definitions
292 include $(srctree
)/scripts
/Kbuild.
include
294 # For maximum performance (+ possibly random breakage, uncomment
299 # Make variables (CC, etc...)
301 AS
= $(CROSS_COMPILE
)as
302 LD
= $(CROSS_COMPILE
)ld
303 CC
= $(CROSS_COMPILE
)gcc
305 AR
= $(CROSS_COMPILE
)ar
306 NM
= $(CROSS_COMPILE
)nm
307 STRIP
= $(CROSS_COMPILE
)strip
308 OBJCOPY
= $(CROSS_COMPILE
)objcopy
309 OBJDUMP
= $(CROSS_COMPILE
)objdump
311 GENKSYMS
= scripts
/genksyms
/genksyms
312 DEPMOD
= /sbin
/depmod
313 KALLSYMS
= scripts
/kallsyms
317 CHECKFLAGS
:= -D__linux__
-Dlinux
-D__STDC__
-Dunix
-D__unix__
-Wbitwise
$(CF
)
319 CFLAGS_MODULE
= $(MODFLAGS
)
320 AFLAGS_MODULE
= $(MODFLAGS
)
326 # Use LINUXINCLUDE when you must reference the include/ directory.
327 # Needed to be compatible with the O= option
328 LINUXINCLUDE
:= -Iinclude \
329 $(if
$(KBUILD_SRC
),-Iinclude2
-I
$(srctree
)/include) \
330 -include include/linux
/autoconf.h
332 CPPFLAGS
:= -D__KERNEL__
$(LINUXINCLUDE
)
334 CFLAGS
:= -Wall
-Wundef
-Wstrict-prototypes
-Wno-trigraphs \
335 -fno-strict-aliasing
-fno-common \
337 AFLAGS
:= -D__ASSEMBLY__
339 # Read KERNELRELEASE from .kernelrelease (if it exists)
340 KERNELRELEASE
= $(shell cat .kernelrelease
2> /dev
/null
)
341 KERNELVERSION
= $(VERSION
).
$(PATCHLEVEL
).
$(SUBLEVEL
)$(EXTRAVERSION
)
343 export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION \
344 ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \
345 CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE \
346 HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
348 export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
349 export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
350 export AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
352 # When compiling out-of-tree modules, put MODVERDIR in the module
353 # tree rather than in the kernel tree. The kernel tree might
355 export MODVERDIR
:= $(if
$(KBUILD_EXTMOD
),$(firstword $(KBUILD_EXTMOD
))/).tmp_versions
357 # Files to ignore in find ... statements
359 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
360 export RCS_TAR_IGNORE
:= --exclude SCCS
--exclude BitKeeper
--exclude .svn
--exclude CVS
--exclude .
pc --exclude .hg
--exclude .git
362 # ===========================================================================
363 # Rules shared between *config targets and build targets
365 # Basic helpers built in scripts/
366 .PHONY
: scripts_basic
368 $(Q
)$(MAKE
) $(build
)=scripts
/basic
370 # To avoid any implicit rule to kick in, define an empty command.
371 scripts
/basic
/%: scripts_basic
;
373 .PHONY
: outputmakefile
374 # outputmakefile generate a Makefile to be placed in output directory, if
375 # using a seperate output directory. This allows convinient use
376 # of make in output directory
378 $(Q
)if
test ! $(srctree
) -ef
$(objtree
); then \
379 $(CONFIG_SHELL
) $(srctree
)/scripts
/mkmakefile \
380 $(srctree
) $(objtree
) $(VERSION
) $(PATCHLEVEL
) \
381 > $(objtree
)/Makefile
; \
382 echo
' GEN $(objtree)/Makefile'; \
385 # To make sure we do not include .config for any of the *config targets
386 # catch them early, and hand them over to scripts/kconfig/Makefile
387 # It is allowed to specify more targets when calling make, including
388 # mixing *config targets and build targets.
389 # For example 'make oldconfig all'.
390 # Detect when mixed targets is specified, and make a second invocation
391 # of make so .config is not included in this case either (for *config).
393 no-dot-config-targets
:= clean mrproper
distclean \
394 cscope TAGS
tags help
%docs
check%
400 ifneq ($(filter $(no-dot-config-targets
), $(MAKECMDGOALS
)),)
401 ifeq ($(filter-out $(no-dot-config-targets
), $(MAKECMDGOALS
)),)
406 ifeq ($(KBUILD_EXTMOD
),)
407 ifneq ($(filter config
%config
,$(MAKECMDGOALS
)),)
409 ifneq ($(filter-out config
%config
,$(MAKECMDGOALS
)),)
415 ifeq ($(mixed-targets
),1)
416 # ===========================================================================
417 # We're called with mixed targets (*config and build targets).
418 # Handle them one by one.
421 $(Q
)$(MAKE
) -C
$(srctree
) KBUILD_SRC
= $@
424 ifeq ($(config-targets
),1)
425 # ===========================================================================
426 # *config targets only - make sure prerequisites are updated, and descend
427 # in scripts/kconfig to make the *config target
429 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
430 # KBUILD_DEFCONFIG may point out an alternative default configuration
431 # used for 'make defconfig'
432 include $(srctree
)/arch
/$(ARCH
)/Makefile
433 export KBUILD_DEFCONFIG
435 config
%config
: scripts_basic outputmakefile FORCE
436 $(Q
)mkdir
-p
include/linux
437 $(Q
)$(MAKE
) $(build
)=scripts
/kconfig
$@
438 $(Q
)$(MAKE
) .kernelrelease
441 # ===========================================================================
442 # Build targets only - this includes vmlinux, arch specific targets, clean
443 # targets and others. In general all targets except *config targets.
445 ifeq ($(KBUILD_EXTMOD
),)
446 # Additional helpers built in scripts/
447 # Carefully list dependencies so we do not try to build scripts twice
450 scripts
: scripts_basic
include/config
/MARKER
451 $(Q
)$(MAKE
) $(build
)=$(@
)
453 scripts_basic
: include/linux
/autoconf.h
455 # Objects we will link into vmlinux / subdirs we need to visit
457 drivers-y
:= drivers
/ sound
/
461 endif # KBUILD_EXTMOD
463 ifeq ($(dot-config
),1)
464 # In this section, we need .config
466 # Read in dependencies to all Kconfig* files, make sure to run
467 # oldconfig if changes are detected.
472 # If .config needs to be updated, it will be done via the dependency
473 # that autoconf has on .config.
474 # To avoid any implicit rule to kick in, define an empty command
475 .config .kconfig.d
: ;
477 # If .config is newer than include/linux/autoconf.h, someone tinkered
478 # with it and forgot to run make oldconfig.
479 # If kconfig.d is missing then we are probarly in a cleaned tree so
480 # we execute the config step to be sure to catch updated Kconfig files
481 include/linux
/autoconf.h
: .kconfig.d .config
482 $(Q
)mkdir
-p
include/linux
483 $(Q
)$(MAKE
) -f
$(srctree
)/Makefile silentoldconfig
485 # Dummy target needed, because used as prerequisite
486 include/linux
/autoconf.h
: ;
489 # The all: target is the default when no target is given on the
491 # This allow a user to issue only 'make' to build a kernel including modules
492 # Defaults vmlinux but it is usually overriden in the arch makefile
495 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
501 #Add align options if CONFIG_CC_* is not equal to 0
502 add-align
= $(if
$(filter-out 0,$($(1))),$(cc-option-align
)$(2)=$($(1)))
503 CFLAGS
+= $(call add-align
,CONFIG_CC_ALIGN_FUNCTIONS
,-functions
)
504 CFLAGS
+= $(call add-align
,CONFIG_CC_ALIGN_LABELS
,-labels
)
505 CFLAGS
+= $(call add-align
,CONFIG_CC_ALIGN_LOOPS
,-loops
)
506 CFLAGS
+= $(call add-align
,CONFIG_CC_ALIGN_JUMPS
,-jumps
)
508 ifdef CONFIG_FRAME_POINTER
509 CFLAGS
+= -fno-omit-frame-pointer
$(call cc-option
,-fno-optimize-sibling-calls
,)
511 CFLAGS
+= -fomit-frame-pointer
514 ifdef CONFIG_DEBUG_INFO
518 include $(srctree
)/arch
/$(ARCH
)/Makefile
520 # arch Makefile may override CC so keep this after arch Makefile is included
521 NOSTDINC_FLAGS
+= -nostdinc
-isystem
$(shell $(CC
) -print-file-name
=include)
522 CHECKFLAGS
+= $(NOSTDINC_FLAGS
)
524 # warn about C99 declaration after statement
525 CFLAGS
+= $(call cc-option
,-Wdeclaration-after-statement
,)
527 # disable pointer signedness warnings in gcc 4.0
528 CFLAGS
+= $(call cc-option
,-Wno-pointer-sign
,)
530 # Default kernel image to build when no specific target is given.
531 # KBUILD_IMAGE may be overruled on the commandline or
532 # set in the environment
533 # Also any assignments in arch/$(ARCH)/Makefile take precedence over
535 export KBUILD_IMAGE ?
= vmlinux
538 # INSTALL_PATH specifies where to place the updated kernel and system map
539 # images. Default is /boot, but you can set it to other values
540 export INSTALL_PATH ?
= /boot
543 # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
544 # relocations required by build roots. This is not defined in the
545 # makefile but the arguement can be passed to make if needed.
548 MODLIB
= $(INSTALL_MOD_PATH
)/lib
/modules
/$(KERNELRELEASE
)
552 ifeq ($(KBUILD_EXTMOD
),)
553 core-y
+= kernel
/ mm
/ fs
/ ipc
/ security
/ crypto
/ block
/
555 vmlinux-dirs
:= $(patsubst %/,%,$(filter %/, $(init-y
) $(init-m
) \
556 $(core-y
) $(core-m
) $(drivers-y
) $(drivers-m
) \
557 $(net-y
) $(net-m
) $(libs-y
) $(libs-m
)))
559 vmlinux-alldirs
:= $(sort $(vmlinux-dirs
) $(patsubst %/,%,$(filter %/, \
561 $(core-n
) $(core-
) $(drivers-n
) $(drivers-
) \
562 $(net-n
) $(net-
) $(libs-n
) $(libs-
))))
564 init-y
:= $(patsubst %/, %/built-in.o
, $(init-y
))
565 core-y
:= $(patsubst %/, %/built-in.o
, $(core-y
))
566 drivers-y
:= $(patsubst %/, %/built-in.o
, $(drivers-y
))
567 net-y
:= $(patsubst %/, %/built-in.o
, $(net-y
))
568 libs-y1
:= $(patsubst %/, %/lib.a
, $(libs-y
))
569 libs-y2
:= $(patsubst %/, %/built-in.o
, $(libs-y
))
570 libs-y
:= $(libs-y1
) $(libs-y2
)
573 # ---------------------------------------------------------------------------
574 # vmlinux is build from the objects selected by $(vmlinux-init) and
575 # $(vmlinux-main). Most are built-in.o files from top-level directories
576 # in the kernel tree, others are specified in arch/$(ARCH)Makefile.
577 # Ordering when linking is important, and $(vmlinux-init) must be first.
582 # +-< $(vmlinux-init)
583 # | +--< init/version.o + more
585 # +--< $(vmlinux-main)
586 # | +--< driver/built-in.o mm/built-in.o + more
588 # +-< kallsyms.o (see description in CONFIG_KALLSYMS section)
590 # vmlinux version (uname -v) cannot be updated during normal
591 # descending-into-subdirs phase since we do not yet know if we need to
593 # Therefore this step is delayed until just before final link of vmlinux -
594 # except in the kallsyms case where it is done just before adding the
595 # symbols to the kernel.
597 # System.map is generated to document addresses of all kernel symbols
599 vmlinux-init
:= $(head-y
) $(init-y
)
600 vmlinux-main
:= $(core-y
) $(libs-y
) $(drivers-y
) $(net-y
)
601 vmlinux-all
:= $(vmlinux-init
) $(vmlinux-main
)
602 vmlinux-lds
:= arch
/$(ARCH
)/kernel
/vmlinux.lds
604 # Rule to link vmlinux - also used during CONFIG_KALLSYMS
605 # May be overridden by arch/$(ARCH)/Makefile
606 quiet_cmd_vmlinux__ ?
= LD
$@
607 cmd_vmlinux__ ?
= $(LD
) $(LDFLAGS
) $(LDFLAGS_vmlinux
) -o
$@ \
608 -T
$(vmlinux-lds
) $(vmlinux-init
) \
609 --start-group
$(vmlinux-main
) --end-group \
610 $(filter-out $(vmlinux-lds
) $(vmlinux-init
) $(vmlinux-main
) FORCE
,$^
)
612 # Generate new vmlinux version
613 quiet_cmd_vmlinux_version
= GEN .version
614 cmd_vmlinux_version
= set
-e
; \
615 if
[ ! -r .version
]; then \
619 mv .version .old_version
; \
620 expr
0$$(cat .old_version
) + 1 >.version
; \
622 $(MAKE
) $(build
)=init
624 # Generate System.map
625 quiet_cmd_sysmap
= SYSMAP
626 cmd_sysmap
= $(CONFIG_SHELL
) $(srctree
)/scripts
/mksysmap
629 # If CONFIG_KALLSYMS is set .version is already updated
630 # Generate System.map and verify that the content is consistent
631 # Use + in front of the vmlinux_version rule to silent warning with make -j2
632 # First command is ':' to allow us to use + in front of the rule
633 define rule_vmlinux__
635 $(if
$(CONFIG_KALLSYMS
),,+$(call cmd
,vmlinux_version
))
637 $(call cmd
,vmlinux__
)
638 $(Q
)echo
'cmd_$@ := $(cmd_vmlinux__)' > $(@D
)/.
$(@F
).cmd
640 $(Q
)$(if
$($(quiet
)cmd_sysmap
), \
641 echo
' $($(quiet)cmd_sysmap) System.map' &&) \
642 $(cmd_sysmap
) $@ System.map
; \
643 if
[ $$?
-ne
0 ]; then \
651 ifdef CONFIG_KALLSYMS
652 # Generate section listing all symbols and add it into vmlinux $(kallsyms.o)
653 # It's a three stage process:
654 # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is
656 # Running kallsyms on that gives us .tmp_kallsyms1.o with
657 # the right size - vmlinux version (uname -v) is updated during this step
658 # o .tmp_vmlinux2 now has a __kallsyms section of the right size,
659 # but due to the added section, some addresses have shifted.
660 # From here, we generate a correct .tmp_kallsyms2.o
661 # o The correct .tmp_kallsyms2.o is linked into the final vmlinux.
662 # o Verify that the System.map from vmlinux matches the map from
663 # .tmp_vmlinux2, just in case we did not generate kallsyms correctly.
664 # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using
665 # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a
666 # temporary bypass to allow the kernel to be built while the
667 # maintainers work out what went wrong with kallsyms.
669 ifdef CONFIG_KALLSYMS_EXTRA_PASS
675 kallsyms.o
:= .tmp_kallsyms
$(last_kallsyms
).o
677 define verify_kallsyms
678 $(Q
)$(if
$($(quiet
)cmd_sysmap
), \
679 echo
' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \
680 $(cmd_sysmap
) .tmp_vmlinux
$(last_kallsyms
) .tmp_System.map
681 $(Q
)cmp
-s System.map .tmp_System.map || \
682 (echo Inconsistent kallsyms data
; \
683 echo Try setting CONFIG_KALLSYMS_EXTRA_PASS
; \
684 rm .tmp_kallsyms
* ; /bin
/false
)
687 # Update vmlinux version before link
688 # Use + in front of this rule to silent warning about make -j1
689 # First command is ':' to allow us to use + in front of this rule
690 cmd_ksym_ld
= $(cmd_vmlinux__
)
693 +$(call cmd
,vmlinux_version
)
694 $(call cmd
,vmlinux__
)
695 $(Q
)echo
'cmd_$@ := $(cmd_vmlinux__)' > $(@D
)/.
$(@F
).cmd
698 # Generate .S file with all kernel symbols
699 quiet_cmd_kallsyms
= KSYM
$@
700 cmd_kallsyms
= $(NM
) -n
$< |
$(KALLSYMS
) \
701 $(if
$(CONFIG_KALLSYMS_ALL
),--all-symbols
) > $@
703 .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o
: %.o
: %.S scripts FORCE
704 $(call if_changed_dep
,as_o_S
)
706 .tmp_kallsyms
%.S
: .tmp_vmlinux
% $(KALLSYMS
)
709 # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version
710 .tmp_vmlinux1
: $(vmlinux-lds
) $(vmlinux-all
) FORCE
711 $(call if_changed_rule
,ksym_ld
)
713 .tmp_vmlinux2
: $(vmlinux-lds
) $(vmlinux-all
) .tmp_kallsyms1.o FORCE
714 $(call if_changed
,vmlinux__
)
716 .tmp_vmlinux3
: $(vmlinux-lds
) $(vmlinux-all
) .tmp_kallsyms2.o FORCE
717 $(call if_changed
,vmlinux__
)
719 # Needs to visit scripts/ before $(KALLSYMS) can be used.
720 $(KALLSYMS
): scripts
;
722 # Generate some data for debugging strange kallsyms problems
723 debug_kallsyms
: .tmp_map
$(last_kallsyms
)
725 .tmp_map
%: .tmp_vmlinux
% FORCE
726 ($(OBJDUMP
) -h
$< |
$(AWK
) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM
) $<) |
sort > $@
732 endif # ifdef CONFIG_KALLSYMS
734 # vmlinux image - including updated kernel symbols
735 vmlinux
: $(vmlinux-lds
) $(vmlinux-init
) $(vmlinux-main
) $(kallsyms.o
) FORCE
736 $(call if_changed_rule
,vmlinux__
)
737 $(Q
)rm -f .old_version
739 # The actual objects are generated when descending,
740 # make sure no implicit rule kicks in
741 $(sort $(vmlinux-init
) $(vmlinux-main
)) $(vmlinux-lds
): $(vmlinux-dirs
) ;
743 # Handle descending into subdirectories listed in $(vmlinux-dirs)
744 # Preset locale variables to speed up the build process. Limit locale
745 # tweaks to this spot to avoid wrong language settings when running
746 # make menuconfig etc.
747 # Error messages still appears in the original language
749 .PHONY
: $(vmlinux-dirs
)
750 $(vmlinux-dirs
): prepare scripts
751 $(Q
)$(MAKE
) $(build
)=$@
753 # Build the kernel release string
754 # The KERNELRELEASE is stored in a file named .kernelrelease
755 # to be used when executing for example make install or make modules_install
757 # Take the contents of any files called localversion* and the config
758 # variable CONFIG_LOCALVERSION and append them to KERNELRELEASE.
759 # LOCALVERSION from the command line override all of this
762 space
:= $(nullstring
) # end of line
764 ___localver
= $(objtree
)/localversion
* $(srctree
)/localversion
*
765 __localver
= $(sort $(wildcard $(___localver
)))
766 # skip backup files (containing '~')
767 _localver
= $(foreach f
, $(__localver
), $(if
$(findstring ~
, $(f
)),,$(f
)))
769 localver
= $(subst $(space
),, \
770 $(shell cat
/dev
/null
$(_localver
)) \
771 $(patsubst "%",%,$(CONFIG_LOCALVERSION
)))
773 # If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called
774 # and if the SCM is know a tag from the SCM is appended.
775 # The appended tag is determinded by the SCM used.
777 # Currently, only git is supported.
778 # Other SCMs can edit scripts/setlocalversion and add the appropriate
780 ifdef CONFIG_LOCALVERSION_AUTO
781 _localver-auto
= $(shell $(CONFIG_SHELL
) \
782 $(srctree
)/scripts
/setlocalversion
$(srctree
))
783 localver-auto
= $(LOCALVERSION
)$(_localver-auto
)
786 localver-full
= $(localver
)$(localver-auto
)
788 # Store (new) KERNELRELASE string in .kernelrelease
789 kernelrelease
= $(KERNELVERSION
)$(localver-full
)
790 .kernelrelease
: FORCE
792 $(Q
)echo
$(kernelrelease
) > $@
795 # Things we need to do before we recursively start building the kernel
796 # or the modules are listed in "prepare".
797 # A multi level approach is used. prepareN is processed before prepareN-1.
798 # archprepare is used in arch Makefiles and when processed asm symlink,
799 # version.h and scripts_basic is processed / created.
801 # Listed in dependency order
802 .PHONY
: prepare archprepare prepare0 prepare1 prepare2 prepare3
804 # prepare-all is deprecated, use prepare as valid replacement
807 # prepare3 is used to check if we are building in a separate output directory,
809 # 1) Check that make has not been executed in the kernel src $(srctree)
810 # 2) Create the include2 directory, used for the second asm symlink
811 prepare3
: .kernelrelease
812 ifneq ($(KBUILD_SRC
),)
813 @echo
' Using $(srctree) as source for kernel'
814 $(Q
)if
[ -f
$(srctree
)/.config
]; then \
815 echo
" $(srctree) is not clean, please run 'make mrproper'";\
816 echo
" in the '$(srctree)' directory.";\
819 $(Q
)if
[ ! -d include2
]; then mkdir
-p include2
; fi
;
820 $(Q
)ln
-fsn
$(srctree
)/include/asm-
$(ARCH
) include2
/asm
823 # prepare2 creates a makefile if using a separate output directory
824 prepare2
: prepare3 outputmakefile
826 prepare1
: prepare2
include/linux
/version.h
include/asm \
827 include/config
/MARKER
828 ifneq ($(KBUILD_MODULES
),)
829 $(Q
)rm -rf
$(MODVERDIR
)
830 $(Q
)mkdir
-p
$(MODVERDIR
)
833 archprepare
: prepare1 scripts_basic
835 prepare0
: archprepare FORCE
836 $(Q
)$(MAKE
) $(build
)=.
838 # All the preparing..
839 prepare prepare-all
: prepare0
841 # Leave this as default for preprocessing vmlinux.lds.S, which is now
842 # done in arch/$(ARCH)/kernel/Makefile
844 export CPPFLAGS_vmlinux.lds
+= -P
-C
-U
$(ARCH
)
847 # ---------------------------------------------------------------------------
849 %.s
: %.c scripts FORCE
850 $(Q
)$(MAKE
) $(build
)=$(@D
) $@
851 %.i
: %.c scripts FORCE
852 $(Q
)$(MAKE
) $(build
)=$(@D
) $@
853 %.o
: %.c scripts FORCE
854 $(Q
)$(MAKE
) $(build
)=$(@D
) $@
856 $(Q
)$(MAKE
) KBUILD_MODULES
=$(if
$(CONFIG_MODULES
),1) $(build
)=$(@D
) $(@
:.ko
=.o
)
857 $(Q
)$(MAKE
) -rR
-f
$(srctree
)/scripts
/Makefile.modpost
858 %/: scripts prepare FORCE
859 $(Q
)$(MAKE
) KBUILD_MODULES
=$(if
$(CONFIG_MODULES
),1) $(build
)=$(@D
)
860 %.lst
: %.c scripts FORCE
861 $(Q
)$(MAKE
) $(build
)=$(@D
) $@
862 %.s
: %.S scripts FORCE
863 $(Q
)$(MAKE
) $(build
)=$(@D
) $@
864 %.o
: %.S scripts FORCE
865 $(Q
)$(MAKE
) $(build
)=$(@D
) $@
867 # FIXME: The asm symlink changes when $(ARCH) changes. That's
868 # hard to detect, but I suppose "make mrproper" is a good idea
869 # before switching between archs anyway.
872 @echo
' SYMLINK $@ -> include/asm-$(ARCH)'
873 $(Q
)if
[ ! -d
include ]; then mkdir
-p
include; fi
;
874 @ln
-fsn asm-
$(ARCH
) $@
876 # Split autoconf.h into include/linux/config/*
878 include/config
/MARKER
: scripts
/basic
/split-include
include/linux
/autoconf.h
879 @echo
' SPLIT include/linux/autoconf.h -> include/config/*'
880 @scripts
/basic
/split-include
include/linux
/autoconf.h
include/config
883 # Generate some files
884 # ---------------------------------------------------------------------------
886 # KERNELRELEASE can change from a few different places, meaning version.h
887 # needs to be updated, so this check is forced on all builds
891 define filechk_version.h
892 if
[ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt
$(uts_len
) ]; then \
893 echo
'"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \
896 (echo \
#define UTS_RELEASE \"$(KERNELRELEASE)\"; \
897 echo \
#define LINUX_VERSION_CODE `expr $(VERSION) \\* 65536 + $(PATCHLEVEL) \\* 256 + $(SUBLEVEL)`; \
898 echo
'#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))'; \
902 include/linux
/version.h
: $(srctree
)/Makefile .config FORCE
903 $(call filechk
,version.h
)
905 # ---------------------------------------------------------------------------
909 @echo
'*** Warning: make $@ is unnecessary now.'
911 # ---------------------------------------------------------------------------
916 # By default, build modules as well
923 modules
: $(vmlinux-dirs
) $(if
$(KBUILD_BUILTIN
),vmlinux
)
924 @echo
' Building modules, stage 2.';
925 $(Q
)$(MAKE
) -rR
-f
$(srctree
)/scripts
/Makefile.modpost
928 # Target to prepare building external modules
929 .PHONY
: modules_prepare
930 modules_prepare
: prepare scripts
932 # Target to install modules
933 .PHONY
: modules_install
934 modules_install
: _modinst_ _modinst_post
938 @if
[ -z
"`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \
939 echo
"Warning: you may need to install module-init-tools"; \
940 echo
"See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\
943 @
rm -rf
$(MODLIB
)/kernel
944 @
rm -f
$(MODLIB
)/source
945 @mkdir
-p
$(MODLIB
)/kernel
946 @ln
-s
$(srctree
) $(MODLIB
)/source
947 @if
[ ! $(objtree
) -ef
$(MODLIB
)/build
]; then \
948 rm -f
$(MODLIB
)/build
; \
949 ln
-s
$(objtree
) $(MODLIB
)/build
; \
951 $(Q
)$(MAKE
) -rR
-f
$(srctree
)/scripts
/Makefile.modinst
953 # If System.map exists, run depmod. This deliberately does not have a
954 # dependency on System.map since that would run the dependency tree on
955 # vmlinux. This depmod is only for convenience to give the initial
956 # boot a modules.dep even before / is mounted read-write. However the
957 # boot script depmod is the master version.
958 ifeq "$(strip $(INSTALL_MOD_PATH))" ""
961 depmod_opts
:= -b
$(INSTALL_MOD_PATH
) -r
963 .PHONY
: _modinst_post
964 _modinst_post
: _modinst_
965 if
[ -r System.map
-a
-x
$(DEPMOD
) ]; then
$(DEPMOD
) -ae
-F System.map
$(depmod_opts
) $(KERNELRELEASE
); fi
967 else # CONFIG_MODULES
969 # Modules not configured
970 # ---------------------------------------------------------------------------
972 modules modules_install
: FORCE
974 @echo
"The present kernel configuration has modules disabled."
975 @echo
"Type 'make config' and enable loadable module support."
976 @echo
"Then build a kernel with module support enabled."
980 endif # CONFIG_MODULES
983 # Cleaning is done on three levels.
984 # make clean Delete most generated files
985 # Leave enough to build external modules
986 # make mrproper Delete the current configuration, and all generated files
987 # make distclean Remove editor backup files, patch leftover files and the like
989 # Directories & files removed with 'make clean'
990 CLEAN_DIRS
+= $(MODVERDIR
)
991 CLEAN_FILES
+= vmlinux System.map \
992 .tmp_kallsyms
* .tmp_version .tmp_vmlinux
* .tmp_System.map
994 # Directories & files removed with 'make mrproper'
995 MRPROPER_DIRS
+= include/config include2
996 MRPROPER_FILES
+= .config .config.old
include/asm .version .old_version \
997 include/linux
/autoconf.h
include/linux
/version.h \
998 .kernelrelease Module.symvers
tags TAGS cscope
*
1000 # clean - Delete most, but leave enough to build external modules
1002 clean: rm-dirs
:= $(CLEAN_DIRS
)
1003 clean: rm-files
:= $(CLEAN_FILES
)
1004 clean-dirs
:= $(addprefix _clean_
,$(srctree
) $(vmlinux-alldirs
))
1006 .PHONY
: $(clean-dirs
) clean archclean
1008 $(Q
)$(MAKE
) $(clean)=$(patsubst _clean_
%,%,$@
)
1010 clean: archclean
$(clean-dirs
)
1013 @find .
$(RCS_FIND_IGNORE
) \
1014 \
( -name
'*.[oas]' -o
-name
'*.ko' -o
-name
'.*.cmd' \
1015 -o
-name
'.*.d' -o
-name
'.*.tmp' -o
-name
'*.mod.c' \
) \
1016 -type f
-print | xargs
rm -f
1018 # mrproper - Delete all generated files, including .config
1020 mrproper
: rm-dirs
:= $(wildcard $(MRPROPER_DIRS
))
1021 mrproper
: rm-files
:= $(wildcard $(MRPROPER_FILES
))
1022 mrproper-dirs
:= $(addprefix _mrproper_
,Documentation
/DocBook scripts
)
1024 .PHONY
: $(mrproper-dirs
) mrproper archmrproper
1026 $(Q
)$(MAKE
) $(clean)=$(patsubst _mrproper_
%,%,$@
)
1028 mrproper
: clean archmrproper
$(mrproper-dirs
)
1037 @find
$(srctree
) $(RCS_FIND_IGNORE
) \
1038 \
( -name
'*.orig' -o
-name
'*.rej' -o
-name
'*~' \
1039 -o
-name
'*.bak' -o
-name
'#*#' -o
-name
'.*.orig' \
1040 -o
-name
'.*.rej' -o
-size
0 \
1041 -o
-name
'*%' -o
-name
'.*.cmd' -o
-name
'core' \
) \
1042 -type f
-print | xargs
rm -f
1045 # Packaging of the kernel to various formats
1046 # ---------------------------------------------------------------------------
1047 # rpm target kept for backward compatibility
1048 package-dir
:= $(srctree
)/scripts
/package
1053 $(Q
)$(MAKE
) -f
$(package-dir
)/Makefile
$@
1055 $(Q
)$(MAKE
) -f
$(package-dir
)/Makefile
$@
1058 # Brief documentation of the typical targets used
1059 # ---------------------------------------------------------------------------
1061 boards
:= $(wildcard $(srctree
)/arch
/$(ARCH
)/configs
/*_defconfig
)
1062 boards
:= $(notdir $(boards
))
1065 @echo
'Cleaning targets:'
1066 @echo
' clean - remove most generated files but keep the config'
1067 @echo
' mrproper - remove all generated files + config + various backup files'
1069 @echo
'Configuration targets:'
1070 @
$(MAKE
) -f
$(srctree
)/scripts
/kconfig
/Makefile help
1072 @echo
'Other generic targets:'
1073 @echo
' all - Build all targets marked with [*]'
1074 @echo
'* vmlinux - Build the bare kernel'
1075 @echo
'* modules - Build all modules'
1076 @echo
' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
1077 @echo
' dir/ - Build all files in dir and below'
1078 @echo
' dir/file.[ois] - Build specified target only'
1079 @echo
' dir/file.ko - Build module including final link'
1080 @echo
' rpm - Build a kernel as an RPM package'
1081 @echo
' tags/TAGS - Generate tags file for editors'
1082 @echo
' cscope - Generate cscope index'
1083 @echo
' kernelrelease - Output the release version string'
1084 @echo
' kernelversion - Output the version stored in Makefile'
1086 @echo
'Static analysers'
1087 @echo
' buildcheck - List dangling references to vmlinux discarded sections'
1088 @echo
' and init sections from non-init sections'
1089 @echo
' checkstack - Generate a list of stack hogs'
1090 @echo
' namespacecheck - Name space analysis on compiled kernel'
1092 @echo
'Kernel packaging:'
1093 @
$(MAKE
) -f
$(package-dir
)/Makefile help
1095 @echo
'Documentation targets:'
1096 @
$(MAKE
) -f
$(srctree
)/Documentation
/DocBook
/Makefile dochelp
1098 @echo
'Architecture specific targets ($(ARCH)):'
1099 @
$(if
$(archhelp
),$(archhelp
),\
1100 echo
' No architecture specific help defined for $(ARCH)')
1103 $(foreach b
, $(boards
), \
1104 printf
" %-24s - Build for %s\\n" $(b
) $(subst _defconfig
,,$(b
));) \
1107 @echo
' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1108 @echo
' make O=dir [targets] Locate all output files in "dir", including .config'
1109 @echo
' make C=1 [targets] Check all c source with $$CHECK (sparse)'
1110 @echo
' make C=2 [targets] Force check of all c source with $$CHECK (sparse)'
1112 @echo
'Execute "make" or "make all" to build all targets marked with [*] '
1113 @echo
'For further info see the ./README file'
1116 # Documentation targets
1117 # ---------------------------------------------------------------------------
1118 %docs
: scripts_basic FORCE
1119 $(Q
)$(MAKE
) $(build
)=Documentation
/DocBook
$@
1121 else # KBUILD_EXTMOD
1124 # External module support.
1125 # When building external modules the kernel used as basis is considered
1126 # read-only, and no consistency checks are made and the make
1127 # system is not used on the basis kernel. If updates are required
1128 # in the basis kernel ordinary make commands (without M=...) must
1131 # The following are the only valid targets when building external
1133 # make M=dir clean Delete all automatically generated files
1134 # make M=dir modules Make all modules in specified dir
1135 # make M=dir Same as 'make M=dir modules'
1136 # make M=dir modules_install
1137 # Install the modules build in the module directory
1138 # Assumes install directory is already created
1140 # We are always building modules
1144 $(Q
)mkdir
-p
$(MODVERDIR
)
1146 .PHONY
: $(objtree
)/Module.symvers
1147 $(objtree
)/Module.symvers
:
1148 @
test -e
$(objtree
)/Module.symvers ||
( \
1150 echo
" WARNING: Symbol version dump $(objtree)/Module.symvers"; \
1151 echo
" is missing; modules will have no dependencies and modversions."; \
1154 module-dirs
:= $(addprefix _module_
,$(KBUILD_EXTMOD
))
1155 .PHONY
: $(module-dirs
) modules
1156 $(module-dirs
): crmodverdir
$(objtree
)/Module.symvers
1157 $(Q
)$(MAKE
) $(build
)=$(patsubst _module_
%,%,$@
)
1159 modules
: $(module-dirs
)
1160 @echo
' Building modules, stage 2.';
1161 $(Q
)$(MAKE
) -rR
-f
$(srctree
)/scripts
/Makefile.modpost
1163 .PHONY
: modules_install
1165 $(Q
)$(MAKE
) -rR
-f
$(srctree
)/scripts
/Makefile.modinst
1167 clean-dirs
:= $(addprefix _clean_
,$(KBUILD_EXTMOD
))
1169 .PHONY
: $(clean-dirs
) clean
1171 $(Q
)$(MAKE
) $(clean)=$(patsubst _clean_
%,%,$@
)
1173 clean: rm-dirs
:= $(MODVERDIR
)
1174 clean: $(clean-dirs
)
1176 @find
$(KBUILD_EXTMOD
) $(RCS_FIND_IGNORE
) \
1177 \
( -name
'*.[oas]' -o
-name
'*.ko' -o
-name
'.*.cmd' \
1178 -o
-name
'.*.d' -o
-name
'.*.tmp' -o
-name
'*.mod.c' \
) \
1179 -type f
-print | xargs
rm -f
1182 @echo
' Building external modules.'
1183 @echo
' Syntax: make -C path/to/kernel/src M=$$PWD target'
1185 @echo
' modules - default target, build the module(s)'
1186 @echo
' modules_install - install the module'
1187 @echo
' clean - remove generated files in module directory only'
1189 endif # KBUILD_EXTMOD
1191 # Generate tags for editors
1192 # ---------------------------------------------------------------------------
1194 #We want __srctree to totally vanish out when KBUILD_OUTPUT is not set
1195 #(which is the most common case IMHO) to avoid unneeded clutter in the big tags file.
1196 #Adding $(srctree) adds about 20M on i386 to the size of the output file!
1198 ifeq ($(src
),$(obj
))
1201 __srctree
= $(srctree
)/
1204 ifeq ($(ALLSOURCE_ARCHS
),)
1206 ALLINCLUDE_ARCHS
:= $(ARCH
) $(SUBARCH
)
1208 ALLINCLUDE_ARCHS
:= $(ARCH
)
1211 #Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behaviour.
1212 ALLINCLUDE_ARCHS
:= $(ALLSOURCE_ARCHS
)
1215 ALLSOURCE_ARCHS
:= $(ARCH
)
1218 ( find
$(__srctree
) $(RCS_FIND_IGNORE
) \
1219 \
( -name
include -o
-name arch \
) -prune
-o \
1220 -name
'*.[chS]' -print; \
1221 for ARCH in
$(ALLSOURCE_ARCHS
) ; do \
1222 find
$(__srctree
)arch
/$${ARCH} $(RCS_FIND_IGNORE
) \
1223 -name
'*.[chS]' -print; \
1225 find
$(__srctree
)security
/selinux
/include $(RCS_FIND_IGNORE
) \
1226 -name
'*.[chS]' -print; \
1227 find
$(__srctree
)include $(RCS_FIND_IGNORE
) \
1228 \
( -name config
-o
-name
'asm-*' \
) -prune \
1229 -o
-name
'*.[chS]' -print; \
1230 for ARCH in
$(ALLINCLUDE_ARCHS
) ; do \
1231 find
$(__srctree
)include/asm-
$${ARCH} $(RCS_FIND_IGNORE
) \
1232 -name
'*.[chS]' -print; \
1234 find
$(__srctree
)include/asm-generic
$(RCS_FIND_IGNORE
) \
1235 -name
'*.[chS]' -print )
1238 quiet_cmd_cscope-file
= FILELST cscope.files
1239 cmd_cscope-file
= (echo \
-k
; echo \
-q
; $(all-sources
)) > cscope.files
1241 quiet_cmd_cscope
= MAKE cscope.out
1242 cmd_cscope
= cscope
-b
1245 $(call cmd
,cscope-file
)
1248 quiet_cmd_TAGS
= MAKE
$@
1251 ETAGSF
=`etags --version | grep -i exuberant >/dev/null && \
1252 echo "-I __initdata,__exitdata,__acquires,__releases \
1253 -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
1254 --extra=+f --c-kinds=+px"`; \
1255 $(all-sources
) | xargs etags
$$ETAGSF -a
1262 quiet_cmd_tags
= MAKE
$@
1265 CTAGSF
=`ctags --version | grep -i exuberant >/dev/null && \
1266 echo "-I __initdata,__exitdata,__acquires,__releases \
1267 -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
1268 --extra=+f --c-kinds=+px"`; \
1269 $(all-sources
) | xargs ctags
$$CTAGSF -a
1276 # Scripts to check various things for consistency
1277 # ---------------------------------------------------------------------------
1280 find
* $(RCS_FIND_IGNORE
) \
1281 -name
'*.[hcS]' -type f
-print |
sort \
1282 | xargs
$(PERL
) -w scripts
/checkincludes.pl
1285 find
* $(RCS_FIND_IGNORE
) \
1286 -name
'*.[hcS]' -type f
-print |
sort \
1287 | xargs
$(PERL
) -w scripts
/checkversion.pl
1290 $(PERL
) $(srctree
)/scripts
/reference_discarded.pl
1291 $(PERL
) $(srctree
)/scripts
/reference_init.pl
1294 $(PERL
) $(srctree
)/scripts
/namespace.pl
1296 endif #ifeq ($(config-targets),1)
1297 endif #ifeq ($(mixed-targets),1)
1301 $(OBJDUMP
) -d vmlinux
$$(find .
-name
'*.ko') | \
1302 $(PERL
) $(src
)/scripts
/checkstack.pl
$(ARCH
)
1305 $(if
$(wildcard .kernelrelease
), $(Q
)echo
$(KERNELRELEASE
), \
1306 $(error kernelrelease not valid
- run
'make *config' to update it
))
1308 @echo
$(KERNELVERSION
)
1310 # FIXME Should go into a make.lib or something
1311 # ===========================================================================
1313 quiet_cmd_rmdirs
= $(if
$(wildcard $(rm-dirs
)),CLEAN
$(wildcard $(rm-dirs
)))
1314 cmd_rmdirs
= rm -rf
$(rm-dirs
)
1316 quiet_cmd_rmfiles
= $(if
$(wildcard $(rm-files
)),CLEAN
$(wildcard $(rm-files
)))
1317 cmd_rmfiles
= rm -f
$(rm-files
)
1320 a_flags
= -Wp
,-MD
,$(depfile
) $(AFLAGS
) $(AFLAGS_KERNEL
) \
1321 $(NOSTDINC_FLAGS
) $(CPPFLAGS
) \
1322 $(modkern_aflags
) $(EXTRA_AFLAGS
) $(AFLAGS_
$(*F
).o
)
1324 quiet_cmd_as_o_S
= AS
$@
1325 cmd_as_o_S
= $(CC
) $(a_flags
) -c
-o
$@
$<
1327 # read all saved command lines
1329 targets
:= $(wildcard $(sort $(targets
)))
1330 cmd_files
:= $(wildcard .
*.cmd
$(foreach f
,$(targets
),$(dir $(f
)).
$(notdir $(f
)).cmd
))
1332 ifneq ($(cmd_files
),)
1333 $(cmd_files
): ; # Do not try to update included dependency files
1334 include $(cmd_files
)
1337 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
1339 # $(Q)$(MAKE) $(clean)=dir
1340 clean := -f
$(if
$(KBUILD_SRC
),$(srctree
)/)scripts
/Makefile.
clean obj
1342 endif # skip-makefile