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kbuild: move "quote" to Kbuild.include to be consistent
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55922c9d 1VERSION = 3
38dbfb59 2PATCHLEVEL = 14
55922c9d 3SUBLEVEL = 0
38dbfb59
LT
4EXTRAVERSION = -rc1
5NAME = Shuffling Zombie Juror
1da177e4
LT
6
7# *DOCUMENTATION*
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.
12
15964864
OV
13# Do not:
14# o use make's built-in rules and variables
d384e35a 15# (this increases performance and avoids hard-to-debug behaviour);
15964864
OV
16# o print "Entering directory ...";
17MAKEFLAGS += -rR --no-print-directory
1da177e4 18
c051346b 19# Avoid funny character set dependencies
06b5dc64 20unexport LC_ALL
c051346b
PA
21LC_COLLATE=C
22LC_NUMERIC=C
07105202 23export LC_COLLATE LC_NUMERIC
c051346b 24
ab7474ea
BP
25# Avoid interference with shell env settings
26unexport GREP_OPTIONS
27
1da177e4
LT
28# We are using a recursive build, so we need to do a little thinking
29# to get the ordering right.
30#
31# Most importantly: sub-Makefiles should only ever modify files in
32# their own directory. If in some directory we have a dependency on
33# a file in another dir (which doesn't happen often, but it's often
34# unavoidable when linking the built-in.o targets which finally
35# turn into vmlinux), we will call a sub make in that other dir, and
36# after that we are sure that everything which is in that other dir
37# is now up to date.
38#
39# The only cases where we need to modify files which have global
40# effects are thus separated out and done before the recursive
41# descending is started. They are now explicitly listed as the
42# prepare rule.
43
44# To put more focus on warnings, be less verbose as default
45# Use 'make V=1' to see the full commands
46
b8b0618c
CR
47ifeq ("$(origin V)", "command line")
48 KBUILD_VERBOSE = $(V)
1da177e4
LT
49endif
50ifndef KBUILD_VERBOSE
51 KBUILD_VERBOSE = 0
52endif
53
1c7bafe7
RD
54# Call a source code checker (by default, "sparse") as part of the
55# C compilation.
56#
57# Use 'make C=1' to enable checking of only re-compiled files.
58# Use 'make C=2' to enable checking of *all* source files, regardless
59# of whether they are re-compiled or not.
60#
61# See the file "Documentation/sparse.txt" for more details, including
62# where to get the "sparse" utility.
1da177e4 63
b8b0618c
CR
64ifeq ("$(origin C)", "command line")
65 KBUILD_CHECKSRC = $(C)
1da177e4
LT
66endif
67ifndef KBUILD_CHECKSRC
68 KBUILD_CHECKSRC = 0
69endif
70
71# Use make M=dir to specify directory of external module to build
72# Old syntax make ... SUBDIRS=$PWD is still supported
73# Setting the environment variable KBUILD_EXTMOD take precedence
74ifdef SUBDIRS
75 KBUILD_EXTMOD ?= $(SUBDIRS)
76endif
1da177e4 77
b8b0618c
CR
78ifeq ("$(origin M)", "command line")
79 KBUILD_EXTMOD := $(M)
80endif
1da177e4
LT
81
82# kbuild supports saving output files in a separate directory.
83# To locate output files in a separate directory two syntaxes are supported.
84# In both cases the working directory must be the root of the kernel src.
85# 1) O=
86# Use "make O=dir/to/store/output/files/"
070b98bf 87#
1da177e4
LT
88# 2) Set KBUILD_OUTPUT
89# Set the environment variable KBUILD_OUTPUT to point to the directory
90# where the output files shall be placed.
91# export KBUILD_OUTPUT=dir/to/store/output/files/
92# make
93#
94# The O= assignment takes precedence over the KBUILD_OUTPUT environment
95# variable.
96
97
98# KBUILD_SRC is set on invocation of make in OBJ directory
99# KBUILD_SRC is not intended to be used by the regular user (for now)
100ifeq ($(KBUILD_SRC),)
101
102# OK, Make called in directory where kernel src resides
103# Do we want to locate output files in a separate directory?
b8b0618c
CR
104ifeq ("$(origin O)", "command line")
105 KBUILD_OUTPUT := $(O)
1da177e4
LT
106endif
107
4a5838ad 108ifeq ("$(origin W)", "command line")
28bc20dc 109 export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
4a5838ad
BP
110endif
111
1da177e4 112# That's our default target when none is given on the command line
4f193362 113PHONY := _all
1da177e4
LT
114_all:
115
1cacc9ab
SR
116# Cancel implicit rules on top Makefile
117$(CURDIR)/Makefile Makefile: ;
118
1da177e4
LT
119ifneq ($(KBUILD_OUTPUT),)
120# Invoke a second make in the output directory, passing relevant variables
121# check that the output directory actually exists
122saved-output := $(KBUILD_OUTPUT)
123KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
124$(if $(KBUILD_OUTPUT),, \
125 $(error output directory "$(saved-output)" does not exist))
1da177e4 126
0b35786d
MM
127PHONY += $(MAKECMDGOALS) sub-make
128
1cacc9ab 129$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
16f89098 130 @:
0b35786d
MM
131
132sub-make: FORCE
23a45e2c
SR
133 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
134 KBUILD_SRC=$(CURDIR) \
0b35786d
MM
135 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
136 $(filter-out _all sub-make,$(MAKECMDGOALS))
1da177e4
LT
137
138# Leave processing to above invocation of make
139skip-makefile := 1
140endif # ifneq ($(KBUILD_OUTPUT),)
141endif # ifeq ($(KBUILD_SRC),)
142
143# We process the rest of the Makefile if this is the final invocation of make
144ifeq ($(skip-makefile),)
145
146# If building an external module we do not care about the all: rule
147# but instead _all depend on modules
4f193362 148PHONY += all
1da177e4
LT
149ifeq ($(KBUILD_EXTMOD),)
150_all: all
151else
152_all: modules
153endif
154
155srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
1da177e4
LT
156objtree := $(CURDIR)
157src := $(srctree)
158obj := $(objtree)
159
0f558c33 160VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
1da177e4 161
11294235 162export srctree objtree VPATH
1da177e4 163
1da177e4
LT
164
165# SUBARCH tells the usermode build what the underlying arch is. That is set
166# first, and if a usermode build is happening, the "ARCH=um" on the command
167# line overrides the setting of ARCH below. If a native build is happening,
168# then ARCH is assigned, getting whatever value it gets normally, and
169# SUBARCH is subsequently ignored.
170
ffee0de4
DW
171SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
172 -e s/sun4u/sparc64/ \
1da177e4 173 -e s/arm.*/arm/ -e s/sa110/arm/ \
39990b5e 174 -e s/s390x/s390/ -e s/parisc64/parisc/ \
236b1957 175 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
f1b99392 176 -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
1da177e4
LT
177
178# Cross compiling and selecting different set of gcc/bin-utils
179# ---------------------------------------------------------------------------
180#
181# When performing cross compilation for other architectures ARCH shall be set
182# to the target architecture. (See arch/* for the possibilities).
183# ARCH can be set during invocation of make:
184# make ARCH=ia64
185# Another way is to have ARCH set in the environment.
186# The default ARCH is the host where make is executed.
187
188# CROSS_COMPILE specify the prefix used for all executables used
189# during compilation. Only gcc and related bin-utils executables
190# are prefixed with $(CROSS_COMPILE).
191# CROSS_COMPILE can be set on the command line
192# make CROSS_COMPILE=ia64-linux-
193# Alternatively CROSS_COMPILE can be set in the environment.
84336466
RM
194# A third alternative is to store a setting in .config so that plain
195# "make" in the configured kernel build directory always uses that.
1da177e4
LT
196# Default value for CROSS_COMPILE is not to prefix executables
197# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
2331d1a6 198ARCH ?= $(SUBARCH)
84336466 199CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%)
1da177e4
LT
200
201# Architecture as present in compile.h
6752ed90
TG
202UTS_MACHINE := $(ARCH)
203SRCARCH := $(ARCH)
1da177e4 204
d746d647
SR
205# Additional ARCH settings for x86
206ifeq ($(ARCH),i386)
207 SRCARCH := x86
208endif
209ifeq ($(ARCH),x86_64)
210 SRCARCH := x86
211endif
74b469f2 212
5e538790 213# Additional ARCH settings for sparc
e69f58c0
NK
214ifeq ($(ARCH),sparc32)
215 SRCARCH := sparc
216endif
a439fe51 217ifeq ($(ARCH),sparc64)
5e538790 218 SRCARCH := sparc
a439fe51 219endif
2fb9b1bd 220
3cc000b5
PM
221# Additional ARCH settings for sh
222ifeq ($(ARCH),sh64)
223 SRCARCH := sh
224endif
225
18aecc2b 226# Additional ARCH settings for tile
6738d321
CM
227ifeq ($(ARCH),tilepro)
228 SRCARCH := tile
229endif
18aecc2b
CM
230ifeq ($(ARCH),tilegx)
231 SRCARCH := tile
232endif
233
5e538790
SR
234# Where to locate arch specific headers
235hdr-arch := $(SRCARCH)
236
14cdd3c4 237KCONFIG_CONFIG ?= .config
41263fc6 238export KCONFIG_CONFIG
14cdd3c4 239
1da177e4
LT
240# SHELL used by kbuild
241CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
242 else if [ -x /bin/bash ]; then echo /bin/bash; \
243 else echo sh; fi ; fi)
244
070b98bf
SR
245HOSTCC = gcc
246HOSTCXX = g++
25583d4b 247HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer
070b98bf 248HOSTCXXFLAGS = -O2
1da177e4 249
070b98bf
SR
250# Decide whether to build built-in, modular, or both.
251# Normally, just do built-in.
1da177e4
LT
252
253KBUILD_MODULES :=
254KBUILD_BUILTIN := 1
255
256# If we have only "make modules", don't compile built-in objects.
257# When we're building modules with modversions, we need to consider
258# the built-in objects during the descend as well, in order to
070b98bf 259# make sure the checksums are up to date before we record them.
1da177e4
LT
260
261ifeq ($(MAKECMDGOALS),modules)
262 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
263endif
264
265# If we have "make <whatever> modules", compile modules
266# in addition to whatever we do anyway.
267# Just "make" or "make all" shall build modules as well
268
269ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
270 KBUILD_MODULES := 1
271endif
272
273ifeq ($(MAKECMDGOALS),)
274 KBUILD_MODULES := 1
275endif
276
e579d351 277export KBUILD_MODULES KBUILD_BUILTIN
1da177e4
LT
278export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
279
280# Beautify output
281# ---------------------------------------------------------------------------
282#
283# Normally, we echo the whole command before executing it. By making
284# that echo $($(quiet)$(cmd)), we now have the possibility to set
285# $(quiet) to choose other forms of output instead, e.g.
286#
287# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
288# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
289#
290# If $(quiet) is empty, the whole command will be printed.
291# If it is set to "quiet_", only the short version will be printed.
070b98bf 292# If it is set to "silent_", nothing will be printed at all, since
1da177e4
LT
293# the variable $(silent_cmd_cc_o_c) doesn't exist.
294#
a58a414f 295# A simple variant is to prefix commands with $(Q) - that's useful
1da177e4
LT
296# for commands that shall be hidden in non-verbose mode.
297#
298# $(Q)ln $@ :<
299#
300# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
301# If KBUILD_VERBOSE equals 1 then the above command is displayed.
302
303ifeq ($(KBUILD_VERBOSE),1)
304 quiet =
305 Q =
306else
307 quiet=quiet_
308 Q = @
309endif
310
311# If the user is running make -s (silent mode), suppress echoing of
312# commands
313
e36aaea2
EM
314ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
315ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
316 quiet=silent_
317endif
318else # make-3.8x
e6ac89fa 319ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
1da177e4
LT
320 quiet=silent_
321endif
e36aaea2 322endif
1da177e4
LT
323
324export quiet Q KBUILD_VERBOSE
325
1da177e4
LT
326
327# Look for make include files relative to root of kernel src
328MAKEFLAGS += --include-dir=$(srctree)
329
1cacc9ab
SR
330# We need some generic definitions (do not try to remake the file).
331$(srctree)/scripts/Kbuild.include: ;
15964864 332include $(srctree)/scripts/Kbuild.include
1da177e4
LT
333
334# Make variables (CC, etc...)
335
336AS = $(CROSS_COMPILE)as
337LD = $(CROSS_COMPILE)ld
338CC = $(CROSS_COMPILE)gcc
339CPP = $(CC) -E
340AR = $(CROSS_COMPILE)ar
341NM = $(CROSS_COMPILE)nm
342STRIP = $(CROSS_COMPILE)strip
343OBJCOPY = $(CROSS_COMPILE)objcopy
344OBJDUMP = $(CROSS_COMPILE)objdump
345AWK = awk
346GENKSYMS = scripts/genksyms/genksyms
caa27b66 347INSTALLKERNEL := installkernel
1da177e4 348DEPMOD = /sbin/depmod
1da177e4
LT
349PERL = perl
350CHECK = sparse
351
80a7d1d9
HE
352CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
353 -Wbitwise -Wno-return-void $(CF)
6588169d
SR
354CFLAGS_MODULE =
355AFLAGS_MODULE =
356LDFLAGS_MODULE =
1da177e4
LT
357CFLAGS_KERNEL =
358AFLAGS_KERNEL =
2521f2c2 359CFLAGS_GCOV = -fprofile-arcs -ftest-coverage
1da177e4
LT
360
361
abbf1590
DH
362# Use USERINCLUDE when you must reference the UAPI directories only.
363USERINCLUDE := \
364 -I$(srctree)/arch/$(hdr-arch)/include/uapi \
365 -Iarch/$(hdr-arch)/include/generated/uapi \
366 -I$(srctree)/include/uapi \
367 -Iinclude/generated/uapi \
368 -include $(srctree)/include/linux/kconfig.h
369
1da177e4
LT
370# Use LINUXINCLUDE when you must reference the include/ directory.
371# Needed to be compatible with the O= option
abbf1590
DH
372LINUXINCLUDE := \
373 -I$(srctree)/arch/$(hdr-arch)/include \
374 -Iarch/$(hdr-arch)/include/generated \
375 $(if $(KBUILD_SRC), -I$(srctree)/include) \
376 -Iinclude \
377 $(USERINCLUDE)
1da177e4 378
d8672b40 379KBUILD_CPPFLAGS := -D__KERNEL__
1da177e4 380
a0f97e06 381KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
94bed2a9 382 -fno-strict-aliasing -fno-common \
a8735821 383 -Werror-implicit-function-declaration \
a3ca86ae
ET
384 -Wno-format-security \
385 -fno-delete-null-pointer-checks
80c00ba9
SR
386KBUILD_AFLAGS_KERNEL :=
387KBUILD_CFLAGS_KERNEL :=
222d394d 388KBUILD_AFLAGS := -D__ASSEMBLY__
6588169d
SR
389KBUILD_AFLAGS_MODULE := -DMODULE
390KBUILD_CFLAGS_MODULE := -DMODULE
391KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
1da177e4 392
f1d28fb0
RZ
393# Read KERNELRELEASE from include/config/kernel.release (if it exists)
394KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
cacd54ef 395KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
cb58455c 396
070b98bf 397export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
80ef88d6 398export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
caa27b66
SR
399export CPP AR NM STRIP OBJCOPY OBJDUMP
400export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE
070b98bf 401export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
1da177e4 402
06c5040c 403export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
2521f2c2 404export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV
222d394d 405export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
6588169d 406export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
80c00ba9 407export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
40df759e 408export KBUILD_ARFLAGS
1da177e4
LT
409
410# When compiling out-of-tree modules, put MODVERDIR in the module
411# tree rather than in the kernel tree. The kernel tree might
412# even be read-only.
413export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
414
1da177e4
LT
415# Files to ignore in find ... statements
416
450c6076
JJ
417RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
418 -o -name .pc -o -name .hg -o -name .git \) -prune -o
419export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
420 --exclude CVS --exclude .pc --exclude .hg --exclude .git
1da177e4
LT
421
422# ===========================================================================
423# Rules shared between *config targets and build targets
424
425# Basic helpers built in scripts/
4f193362 426PHONY += scripts_basic
1da177e4
LT
427scripts_basic:
428 $(Q)$(MAKE) $(build)=scripts/basic
638adb05 429 $(Q)rm -f .tmp_quiet_recordmcount
1da177e4 430
cd05e6bd
JB
431# To avoid any implicit rule to kick in, define an empty command.
432scripts/basic/%: scripts_basic ;
433
4f193362 434PHONY += outputmakefile
fd5f0cd6
JB
435# outputmakefile generates a Makefile in the output directory, if using a
436# separate output directory. This allows convenient use of make in the
437# output directory.
1da177e4 438outputmakefile:
fd5f0cd6 439ifneq ($(KBUILD_SRC),)
92979997 440 $(Q)ln -fsn $(srctree) source
fd5f0cd6
JB
441 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
442 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
443endif
1da177e4 444
d8ecc5cd
SR
445# Support for using generic headers in asm-generic
446PHONY += asm-generic
447asm-generic:
448 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
3c5994c8
CM
449 src=asm obj=arch/$(SRCARCH)/include/generated/asm
450 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
451 src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm
d8ecc5cd 452
1da177e4
LT
453# To make sure we do not include .config for any of the *config targets
454# catch them early, and hand them over to scripts/kconfig/Makefile
455# It is allowed to specify more targets when calling make, including
456# mixing *config targets and build targets.
070b98bf 457# For example 'make oldconfig all'.
1da177e4
LT
458# Detect when mixed targets is specified, and make a second invocation
459# of make so .config is not included in this case either (for *config).
460
10b63956 461version_h := include/generated/uapi/linux/version.h
d183e6f5 462
3eb3c740 463no-dot-config-targets := clean mrproper distclean \
f4ed1009 464 cscope gtags TAGS tags help %docs check% coccicheck \
d183e6f5 465 $(version_h) headers_% archheaders archscripts \
4aed2fd8 466 kernelversion %src-pkg
1da177e4
LT
467
468config-targets := 0
469mixed-targets := 0
470dot-config := 1
471
472ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
473 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
474 dot-config := 0
475 endif
476endif
477
478ifeq ($(KBUILD_EXTMOD),)
479 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
480 config-targets := 1
481 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
482 mixed-targets := 1
483 endif
484 endif
485endif
486
487ifeq ($(mixed-targets),1)
488# ===========================================================================
489# We're called with mixed targets (*config and build targets).
490# Handle them one by one.
491
492%:: FORCE
493 $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@
494
495else
496ifeq ($(config-targets),1)
497# ===========================================================================
498# *config targets only - make sure prerequisites are updated, and descend
499# in scripts/kconfig to make the *config target
500
501# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
502# KBUILD_DEFCONFIG may point out an alternative default configuration
503# used for 'make defconfig'
74b469f2 504include $(srctree)/arch/$(SRCARCH)/Makefile
61bee204 505export KBUILD_DEFCONFIG KBUILD_KCONFIG
1da177e4 506
31110ebb
SR
507config: scripts_basic outputmakefile FORCE
508 $(Q)mkdir -p include/linux include/config
509 $(Q)$(MAKE) $(build)=scripts/kconfig $@
510
511%config: scripts_basic outputmakefile FORCE
c955ccaf 512 $(Q)mkdir -p include/linux include/config
1da177e4
LT
513 $(Q)$(MAKE) $(build)=scripts/kconfig $@
514
515else
516# ===========================================================================
517# Build targets only - this includes vmlinux, arch specific targets, clean
518# targets and others. In general all targets except *config targets.
519
520ifeq ($(KBUILD_EXTMOD),)
521# Additional helpers built in scripts/
522# Carefully list dependencies so we do not try to build scripts twice
070b98bf 523# in parallel
4f193362 524PHONY += scripts
a54292f5
AS
525scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \
526 asm-generic
1da177e4
LT
527 $(Q)$(MAKE) $(build)=$(@)
528
1da177e4
LT
529# Objects we will link into vmlinux / subdirs we need to visit
530init-y := init/
4d2acfbf 531drivers-y := drivers/ sound/ firmware/
1da177e4
LT
532net-y := net/
533libs-y := lib/
534core-y := usr/
535endif # KBUILD_EXTMOD
536
537ifeq ($(dot-config),1)
9ee4e336
SR
538# Read in config
539-include include/config/auto.conf
1da177e4 540
9ee4e336 541ifeq ($(KBUILD_EXTMOD),)
1da177e4
LT
542# Read in dependencies to all Kconfig* files, make sure to run
543# oldconfig if changes are detected.
c955ccaf 544-include include/config/auto.conf.cmd
1da177e4 545
1da177e4 546# To avoid any implicit rule to kick in, define an empty command
14cdd3c4 547$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
1da177e4 548
c955ccaf 549# If .config is newer than include/config/auto.conf, someone tinkered
752625cf 550# with it and forgot to run make oldconfig.
070b98bf 551# if auto.conf.cmd is missing then we are probably in a cleaned tree so
752625cf 552# we execute the config step to be sure to catch updated Kconfig files
bc081dd6 553include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
1da177e4 554 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
3041e47e 555else
264a2683 556# external modules needs include/generated/autoconf.h and include/config/auto.conf
9ee4e336
SR
557# but do not care if they are up-to-date. Use auto.conf to trigger the test
558PHONY += include/config/auto.conf
559
560include/config/auto.conf:
264a2683 561 $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \
5369f550
MM
562 echo >&2; \
563 echo >&2 " ERROR: Kernel configuration is invalid."; \
564 echo >&2 " include/generated/autoconf.h or $@ are missing.";\
565 echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \
566 echo >&2 ; \
9ee4e336
SR
567 /bin/false)
568
569endif # KBUILD_EXTMOD
c955ccaf 570
1da177e4
LT
571else
572# Dummy target needed, because used as prerequisite
c955ccaf 573include/config/auto.conf: ;
9ee4e336 574endif # $(dot-config)
1da177e4
LT
575
576# The all: target is the default when no target is given on the
577# command line.
578# This allow a user to issue only 'make' to build a kernel including modules
c8447161 579# Defaults to vmlinux, but the arch makefile usually adds further targets
1da177e4
LT
580all: vmlinux
581
582ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
e74fc973 583KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)
1da177e4 584else
a0f97e06 585KBUILD_CFLAGS += -O2
1da177e4
LT
586endif
587
a1f42beb
PM
588include $(srctree)/arch/$(SRCARCH)/Makefile
589
1873e870
AK
590ifdef CONFIG_READABLE_ASM
591# Disable optimizations that make assembler listings hard to read.
592# reorder blocks reorders the control in the function
593# ipa clone creates specialized cloned functions
594# partial inlining inlines only parts of functions
595KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \
596 $(call cc-option,-fno-ipa-cp-clone,) \
597 $(call cc-option,-fno-partial-inlining)
598endif
599
08f67461 600ifneq ($(CONFIG_FRAME_WARN),0)
35bb5b1e
AK
601KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
602endif
603
19952a92 604# Handle stack protector mode.
8779657d 605ifdef CONFIG_CC_STACKPROTECTOR_REGULAR
19952a92
KC
606 stackp-flag := -fstack-protector
607 ifeq ($(call cc-option, $(stackp-flag)),)
608 $(warning Cannot use CONFIG_CC_STACKPROTECTOR: \
609 -fstack-protector not supported by compiler))
610 endif
8779657d
KC
611else ifdef CONFIG_CC_STACKPROTECTOR_STRONG
612 stackp-flag := -fstack-protector-strong
613 ifeq ($(call cc-option, $(stackp-flag)),)
614 $(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \
615 -fstack-protector-strong not supported by compiler)
616 endif
19952a92
KC
617else
618 # Force off for distro compilers that enable stack protector by default.
619 stackp-flag := $(call cc-option, -fno-stack-protector)
5d707e9c 620endif
19952a92 621KBUILD_CFLAGS += $(stackp-flag)
e06b8b98 622
af0e5d56
DJ
623# This warning generated too much noise in a regular build.
624# Use make W=1 to enable this warning (see scripts/Makefile.build)
8417da6f 625KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
af0e5d56 626
1da177e4 627ifdef CONFIG_FRAME_POINTER
a0f97e06 628KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
1da177e4 629else
7e9501fd
RV
630# Some targets (ARM with Thumb2, for example), can't be built with frame
631# pointers. For those, we don't have FUNCTION_TRACER automatically
632# select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is
633# incompatible with -fomit-frame-pointer with current GCC, so we don't use
634# -fomit-frame-pointer with FUNCTION_TRACER.
635ifndef CONFIG_FUNCTION_TRACER
a0f97e06 636KBUILD_CFLAGS += -fomit-frame-pointer
1da177e4 637endif
7e9501fd 638endif
1da177e4
LT
639
640ifdef CONFIG_DEBUG_INFO
a0f97e06 641KBUILD_CFLAGS += -g
7db43632 642KBUILD_AFLAGS += -Wa,--gdwarf-2
1da177e4
LT
643endif
644
d6f4ceb7 645ifdef CONFIG_DEBUG_INFO_REDUCED
e82c4bb8
AK
646KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \
647 $(call cc-option,-fno-var-tracking)
d6f4ceb7
AK
648endif
649
606576ce 650ifdef CONFIG_FUNCTION_TRACER
a2546fae
SR
651ifdef CONFIG_HAVE_FENTRY
652CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY)
653endif
654KBUILD_CFLAGS += -pg $(CC_USING_FENTRY)
655KBUILD_AFLAGS += $(CC_USING_FENTRY)
72441cb1 656ifdef CONFIG_DYNAMIC_FTRACE
cf4db259 657 ifdef CONFIG_HAVE_C_RECORDMCOUNT
72441cb1
SR
658 BUILD_C_RECORDMCOUNT := y
659 export BUILD_C_RECORDMCOUNT
660 endif
661endif
16444a8a
ACM
662endif
663
91341d4b
SR
664# We trigger additional mismatches with less inlining
665ifdef CONFIG_DEBUG_SECTION_MISMATCH
666KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
667endif
668
e8e69931 669# arch Makefile may override CC so keep this after arch Makefile is included
e8f5bdb0 670NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
e8e69931
SR
671CHECKFLAGS += $(NOSTDINC_FLAGS)
672
1da177e4 673# warn about C99 declaration after statement
a0f97e06 674KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
1da177e4 675
070b98bf 676# disable pointer signed / unsigned warnings in gcc 4.0
8417da6f 677KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
1da177e4 678
fe8d0a41 679# disable invalid "can't wrap" optimizations for signed / pointers
a137802e 680KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow)
d0115552 681
8f7f5c9f
AK
682# conserve stack if available
683KBUILD_CFLAGS += $(call cc-option,-fconserve-stack)
684
80970472
ST
685# disallow errors like 'EXPORT_GPL(foo);' with missing header
686KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int)
687
688# require functions to have arguments in prototypes, not empty 'int foo()'
689KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes)
690
fe7c36c7
JT
691# Prohibit date/time macros, which would make the build non-deterministic
692KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
693
40df759e
MM
694# use the deterministic mode of AR if available
695KBUILD_ARFLAGS := $(call ar-option,D)
696
bf5438fc
JB
697# check for 'asm goto'
698ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y)
699 KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
700endif
701
06c5040c 702# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
70cfe026
OÇ
703KBUILD_CPPFLAGS += $(KCPPFLAGS)
704KBUILD_AFLAGS += $(KAFLAGS)
705KBUILD_CFLAGS += $(KCFLAGS)
52bcc330 706
18991197
RM
707# Use --build-id when available.
708LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
f86fd306 709 $(call cc-ldoption, -Wl$(comma)--build-id,))
6588169d 710KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
18991197
RM
711LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
712
5d7d18f5 713ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
d79a2719 714LDFLAGS_vmlinux += $(call ld-option, -X,)
5d7d18f5
DH
715endif
716
1da177e4 717# Default kernel image to build when no specific target is given.
070b98bf 718# KBUILD_IMAGE may be overruled on the command line or
1da177e4
LT
719# set in the environment
720# Also any assignments in arch/$(ARCH)/Makefile take precedence over
721# this default value
722export KBUILD_IMAGE ?= vmlinux
723
724#
725# INSTALL_PATH specifies where to place the updated kernel and system map
726# images. Default is /boot, but you can set it to other values
727export INSTALL_PATH ?= /boot
728
729#
730# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
731# relocations required by build roots. This is not defined in the
070b98bf 732# makefile but the argument can be passed to make if needed.
1da177e4
LT
733#
734
df9df036 735MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
1da177e4
LT
736export MODLIB
737
ac031f26 738#
2ea03891
SR
739# INSTALL_MOD_STRIP, if defined, will cause modules to be
740# stripped after they are installed. If INSTALL_MOD_STRIP is '1', then
741# the default option --strip-debug will be used. Otherwise,
177b241d 742# INSTALL_MOD_STRIP value will be used as the options to the strip command.
2ea03891 743
ac031f26
TT
744ifdef INSTALL_MOD_STRIP
745ifeq ($(INSTALL_MOD_STRIP),1)
2ea03891 746mod_strip_cmd = $(STRIP) --strip-debug
ac031f26 747else
2ea03891 748mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)
ac031f26
TT
749endif # INSTALL_MOD_STRIP=1
750else
2ea03891 751mod_strip_cmd = true
ac031f26
TT
752endif # INSTALL_MOD_STRIP
753export mod_strip_cmd
754
1bf49dd4 755# Select initial ramdisk compression format, default is gzip(1).
756# This shall be used by the dracut(8) tool while creating an initramfs image.
757#
7ac18156
JB
758INITRD_COMPRESS-y := gzip
759INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2
760INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma
761INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz
762INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo
763INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4
b7000ade
LT
764# do not export INITRD_COMPRESS, since we didn't actually
765# choose a sane default compression above.
766# export INITRD_COMPRESS := $(INITRD_COMPRESS-y)
1da177e4 767
d9d8d7ed 768ifdef CONFIG_MODULE_SIG_ALL
e2a666d5
RR
769MODSECKEY = ./signing_key.priv
770MODPUBKEY = ./signing_key.x509
771export MODPUBKEY
4bc9410c 772mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY)
e2a666d5
RR
773else
774mod_sign_cmd = true
775endif
776export mod_sign_cmd
777
778
1da177e4 779ifeq ($(KBUILD_EXTMOD),)
3a65dfe8 780core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
1da177e4
LT
781
782vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
783 $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
784 $(net-y) $(net-m) $(libs-y) $(libs-m)))
785
786vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \
787 $(init-n) $(init-) \
788 $(core-n) $(core-) $(drivers-n) $(drivers-) \
789 $(net-n) $(net-) $(libs-n) $(libs-))))
790
791init-y := $(patsubst %/, %/built-in.o, $(init-y))
792core-y := $(patsubst %/, %/built-in.o, $(core-y))
793drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y))
794net-y := $(patsubst %/, %/built-in.o, $(net-y))
795libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))
796libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))
797libs-y := $(libs-y1) $(libs-y2)
798
1f2bfbd0 799# Externally visible symbols (used by link-vmlinux.sh)
95698570
SR
800export KBUILD_VMLINUX_INIT := $(head-y) $(init-y)
801export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y)
802export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds
1f2bfbd0 803export LDFLAGS_vmlinux
6615d6c3
MM
804# used by scripts/pacmage/Makefile
805export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt)
9bb48247 806
1f2bfbd0 807vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN)
1da177e4 808
1f2bfbd0
SR
809# Final link of vmlinux
810 cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux)
811quiet_cmd_link-vmlinux = LINK $@
1da177e4 812
1f2bfbd0
SR
813# Include targets which we want to
814# execute if the rest of the kernel build went well.
815vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE
0f836e5f 816ifdef CONFIG_HEADERS_CHECK
0e7af8d0 817 $(Q)$(MAKE) -f $(srctree)/Makefile headers_check
267c4025
MD
818endif
819ifdef CONFIG_SAMPLES
820 $(Q)$(MAKE) $(build)=samples
3794f3e8
RD
821endif
822ifdef CONFIG_BUILD_DOCSRC
823 $(Q)$(MAKE) $(build)=Documentation
0f836e5f 824endif
1f2bfbd0 825 +$(call if_changed,link-vmlinux)
741f98fe 826
1da177e4
LT
827# The actual objects are generated when descending,
828# make sure no implicit rule kicks in
1f2bfbd0 829$(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
1da177e4
LT
830
831# Handle descending into subdirectories listed in $(vmlinux-dirs)
832# Preset locale variables to speed up the build process. Limit locale
833# tweaks to this spot to avoid wrong language settings when running
834# make menuconfig etc.
835# Error messages still appears in the original language
836
4f193362 837PHONY += $(vmlinux-dirs)
5bb78269 838$(vmlinux-dirs): prepare scripts
1da177e4
LT
839 $(Q)$(MAKE) $(build)=$@
840
0d0e7718
MM
841define filechk_kernel.release
842 echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
843endef
844
83a35e36 845# Store (new) KERNELRELEASE string in include/config/kernel.release
f1d28fb0 846include/config/kernel.release: include/config/auto.conf FORCE
0d0e7718 847 $(call filechk,kernel.release)
cb58455c
SR
848
849
1da177e4 850# Things we need to do before we recursively start building the kernel
5bb78269
SR
851# or the modules are listed in "prepare".
852# A multi level approach is used. prepareN is processed before prepareN-1.
853# archprepare is used in arch Makefiles and when processed asm symlink,
854# version.h and scripts_basic is processed / created.
1da177e4 855
5bb78269 856# Listed in dependency order
4f193362 857PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
5bb78269 858
86feeaa8 859# prepare3 is used to check if we are building in a separate output directory,
1da177e4
LT
860# and if so do:
861# 1) Check that make has not been executed in the kernel src $(srctree)
f1d28fb0 862prepare3: include/config/kernel.release
1da177e4 863ifneq ($(KBUILD_SRC),)
fd54f502 864 @$(kecho) ' Using $(srctree) as source for kernel'
c955ccaf 865 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
5369f550
MM
866 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
867 echo >&2 " in the '$(srctree)' directory.";\
1da177e4
LT
868 /bin/false; \
869 fi;
1da177e4
LT
870endif
871
86feeaa8 872# prepare2 creates a makefile if using a separate output directory
d8ecc5cd 873prepare2: prepare3 outputmakefile asm-generic
1da177e4 874
d183e6f5 875prepare1: prepare2 $(version_h) include/generated/utsrelease.h \
f7f16b77 876 include/config/auto.conf
7bb9d092 877 $(cmd_crmodverdir)
1da177e4 878
6520fe55 879archprepare: archheaders archscripts prepare1 scripts_basic
5bb78269
SR
880
881prepare0: archprepare FORCE
8d36a623 882 $(Q)$(MAKE) $(build)=.
86feeaa8 883
1da177e4 884# All the preparing..
d395efb5 885prepare: prepare0
1da177e4 886
1da177e4
LT
887# Generate some files
888# ---------------------------------------------------------------------------
889
890# KERNELRELEASE can change from a few different places, meaning version.h
891# needs to be updated, so this check is forced on all builds
892
893uts_len := 64
63104eec
SR
894define filechk_utsrelease.h
895 if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \
896 echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \
897 exit 1; \
898 fi; \
899 (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";)
900endef
1da177e4
LT
901
902define filechk_version.h
450c6076
JJ
903 (echo \#define LINUX_VERSION_CODE $(shell \
904 expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \
63104eec 905 echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)
1da177e4
LT
906endef
907
d183e6f5 908$(version_h): $(srctree)/Makefile FORCE
1da177e4
LT
909 $(call filechk,version.h)
910
273b281f 911include/generated/utsrelease.h: include/config/kernel.release FORCE
63104eec
SR
912 $(call filechk,utsrelease.h)
913
179efcb4
VN
914PHONY += headerdep
915headerdep:
9663d989
PF
916 $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \
917 $(srctree)/scripts/headerdep.pl -I$(srctree)/include
179efcb4 918
1da177e4
LT
919# ---------------------------------------------------------------------------
920
4f193362 921PHONY += depend dep
1da177e4
LT
922depend dep:
923 @echo '*** Warning: make $@ is unnecessary now.'
924
88ecf814
DW
925# ---------------------------------------------------------------------------
926# Firmware install
927INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware
928export INSTALL_FW_PATH
929
930PHONY += firmware_install
931firmware_install: FORCE
932 @mkdir -p $(objtree)/firmware
933 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install
934
8d730cfb
DW
935# ---------------------------------------------------------------------------
936# Kernel headers
8d730cfb 937
e6883b18
SR
938#Default location for installed headers
939export INSTALL_HDR_PATH = $(objtree)/usr
6d716275 940
e6883b18 941hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
2fb9b1bd
SR
942
943# If we do an all arch process set dst to asm-$(hdr-arch)
944hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)
e6883b18 945
052ad274
PA
946PHONY += archheaders
947archheaders:
948
6520fe55
PA
949PHONY += archscripts
950archscripts:
951
e6883b18 952PHONY += __headers
d183e6f5 953__headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE
e1b702cf 954 $(Q)$(MAKE) $(build)=scripts build_unifdef
e6883b18
SR
955
956PHONY += headers_install_all
2fb9b1bd
SR
957headers_install_all:
958 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install
6d716275 959
8d730cfb 960PHONY += headers_install
e6883b18 961headers_install: __headers
10b63956
DH
962 $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \
963 $(error Headers not exportable for the $(SRCARCH) architecture))
964 $(Q)$(MAKE) $(hdr-inst)=include/uapi
965 $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst)
8d730cfb 966
1f85712e
MF
967PHONY += headers_check_all
968headers_check_all: headers_install_all
2fb9b1bd 969 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check
1f85712e 970
68475359
DW
971PHONY += headers_check
972headers_check: headers_install
10b63956
DH
973 $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
974 $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1
68475359 975
1da177e4
LT
976# ---------------------------------------------------------------------------
977# Modules
978
979ifdef CONFIG_MODULES
980
070b98bf 981# By default, build modules as well
1da177e4 982
73d1393e 983all: modules
1da177e4
LT
984
985# Build modules
551559e1
TH
986#
987# A module can be listed more than once in obj-m resulting in
988# duplicate lines in modules.order files. Those are removed
989# using awk while concatenating to the final file.
1da177e4 990
4f193362 991PHONY += modules
2da30e70 992modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
551559e1 993 $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
fd54f502 994 @$(kecho) ' Building modules, stage 2.';
b805aa0e 995 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
44463f7d 996 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild
1da177e4 997
a6c36632
MM
998modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
999 $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin
1000
73d1393e 1001%/modules.builtin: include/config/auto.conf
a6c36632
MM
1002 $(Q)$(MAKE) $(modbuiltin)=$*
1003
1da177e4
LT
1004
1005# Target to prepare building external modules
4f193362 1006PHONY += modules_prepare
5bb78269 1007modules_prepare: prepare scripts
1da177e4
LT
1008
1009# Target to install modules
4f193362 1010PHONY += modules_install
1da177e4
LT
1011modules_install: _modinst_ _modinst_post
1012
4f193362 1013PHONY += _modinst_
2da30e70 1014_modinst_:
1da177e4
LT
1015 @rm -rf $(MODLIB)/kernel
1016 @rm -f $(MODLIB)/source
1017 @mkdir -p $(MODLIB)/kernel
1018 @ln -s $(srctree) $(MODLIB)/source
1019 @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \
1020 rm -f $(MODLIB)/build ; \
1021 ln -s $(objtree) $(MODLIB)/build ; \
1022 fi
551559e1 1023 @cp -f $(objtree)/modules.order $(MODLIB)/
bc081dd6 1024 @cp -f $(objtree)/modules.builtin $(MODLIB)/
b805aa0e 1025 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
1da177e4 1026
50a8ec31 1027# This depmod is only for convenience to give the initial
1da177e4
LT
1028# boot a modules.dep even before / is mounted read-write. However the
1029# boot script depmod is the master version.
4f193362 1030PHONY += _modinst_post
6d128e1e 1031_modinst_post: _modinst_
88ecf814 1032 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst
50a8ec31 1033 $(call cmd,depmod)
1da177e4 1034
d890f510
JB
1035ifeq ($(CONFIG_MODULE_SIG), y)
1036PHONY += modules_sign
1037modules_sign:
1038 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign
1039endif
1040
1da177e4
LT
1041else # CONFIG_MODULES
1042
1043# Modules not configured
1044# ---------------------------------------------------------------------------
1045
1046modules modules_install: FORCE
5369f550
MM
1047 @echo >&2
1048 @echo >&2 "The present kernel configuration has modules disabled."
1049 @echo >&2 "Type 'make config' and enable loadable module support."
1050 @echo >&2 "Then build a kernel with module support enabled."
1051 @echo >&2
1da177e4
LT
1052 @exit 1
1053
1054endif # CONFIG_MODULES
1055
1da177e4
LT
1056###
1057# Cleaning is done on three levels.
1058# make clean Delete most generated files
1059# Leave enough to build external modules
1060# make mrproper Delete the current configuration, and all generated files
1061# make distclean Remove editor backup files, patch leftover files and the like
1062
1063# Directories & files removed with 'make clean'
1064CLEAN_DIRS += $(MODVERDIR)
1da177e4
LT
1065
1066# Directories & files removed with 'make mrproper'
d8ecc5cd
SR
1067MRPROPER_DIRS += include/config usr/include include/generated \
1068 arch/*/include/generated
d183e6f5 1069MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \
d5b71936
RR
1070 Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1071 signing_key.priv signing_key.x509 x509.genkey \
1072 extra_certificates signing_key.x509.keyid \
9c8cdb71 1073 signing_key.x509.signer include/linux/version.h
1da177e4
LT
1074
1075# clean - Delete most, but leave enough to build external modules
1076#
1077clean: rm-dirs := $(CLEAN_DIRS)
1078clean: rm-files := $(CLEAN_FILES)
fb68d4be 1079clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples)
1da177e4 1080
bd1ee804 1081PHONY += $(clean-dirs) clean archclean vmlinuxclean
1da177e4
LT
1082$(clean-dirs):
1083 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1084
bd1ee804
PM
1085vmlinuxclean:
1086 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean
1087
1088clean: archclean vmlinuxclean
1da177e4
LT
1089
1090# mrproper - Delete all generated files, including .config
1091#
1092mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1093mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1094mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)
1095
4f193362 1096PHONY += $(mrproper-dirs) mrproper archmrproper
1da177e4
LT
1097$(mrproper-dirs):
1098 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1099
1100mrproper: clean archmrproper $(mrproper-dirs)
1101 $(call cmd,rmdirs)
1102 $(call cmd,rmfiles)
1103
1104# distclean
1105#
4f193362 1106PHONY += distclean
1da177e4
LT
1107
1108distclean: mrproper
1109 @find $(srctree) $(RCS_FIND_IGNORE) \
070b98bf 1110 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1da177e4 1111 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
f4b129f5 1112 -o -name '.*.rej' \
1da177e4
LT
1113 -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
1114 -type f -print | xargs rm -f
1115
1116
1117# Packaging of the kernel to various formats
1118# ---------------------------------------------------------------------------
1119# rpm target kept for backward compatibility
1120package-dir := $(srctree)/scripts/package
1121
bafb6747
ACM
1122%src-pkg: FORCE
1123 $(Q)$(MAKE) $(build)=$(package-dir) $@
031ecc6d 1124%pkg: include/config/kernel.release FORCE
6c2133e1 1125 $(Q)$(MAKE) $(build)=$(package-dir) $@
031ecc6d 1126rpm: include/config/kernel.release FORCE
6c2133e1 1127 $(Q)$(MAKE) $(build)=$(package-dir) $@
1da177e4
LT
1128
1129
1130# Brief documentation of the typical targets used
1131# ---------------------------------------------------------------------------
1132
5dffbe81 1133boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)
1da177e4 1134boards := $(notdir $(boards))
5dffbe81
SB
1135board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))
1136board-dirs := $(sort $(notdir $(board-dirs:/=)))
1da177e4
LT
1137
1138help:
1139 @echo 'Cleaning targets:'
5ea084ef 1140 @echo ' clean - Remove most generated files but keep the config and'
5cc8d246 1141 @echo ' enough build support to build external modules'
5ea084ef 1142 @echo ' mrproper - Remove all generated files + config + various backup files'
5cc8d246 1143 @echo ' distclean - mrproper + remove editor backup and patch files'
1da177e4
LT
1144 @echo ''
1145 @echo 'Configuration targets:'
1146 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1147 @echo ''
1148 @echo 'Other generic targets:'
1149 @echo ' all - Build all targets marked with [*]'
1150 @echo '* vmlinux - Build the bare kernel'
1151 @echo '* modules - Build all modules'
9cc5d74c 1152 @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
88ecf814
DW
1153 @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH'
1154 @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'
1da177e4 1155 @echo ' dir/ - Build all files in dir and below'
62718979
JP
1156 @echo ' dir/file.[oisS] - Build specified target only'
1157 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1158 @echo ' (requires a recent binutils and recent build (System.map))'
155ad605 1159 @echo ' dir/file.ko - Build module including final link'
c4d5ee67 1160 @echo ' modules_prepare - Set up for building external modules'
1da177e4
LT
1161 @echo ' tags/TAGS - Generate tags file for editors'
1162 @echo ' cscope - Generate cscope index'
f4ed1009 1163 @echo ' gtags - Generate GNU GLOBAL index'
6d128842 1164 @echo ' kernelrelease - Output the release version string'
cb58455c 1165 @echo ' kernelversion - Output the version stored in Makefile'
c398ff00 1166 @echo ' image_name - Output the image name'
2fb9b1bd 1167 @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
59df3230 1168 echo ' (default: $(INSTALL_HDR_PATH))'; \
2fb9b1bd 1169 echo ''
1da177e4 1170 @echo 'Static analysers'
1da177e4
LT
1171 @echo ' checkstack - Generate a list of stack hogs'
1172 @echo ' namespacecheck - Name space analysis on compiled kernel'
aa025e7d 1173 @echo ' versioncheck - Sanity check on version.h usage'
ec2d987f 1174 @echo ' includecheck - Check for duplicate included header files'
295ac051 1175 @echo ' export_report - List the usages of all exported symbols'
179efcb4 1176 @echo ' headers_check - Sanity check on exported headers'
74425eee
NP
1177 @echo ' headerdep - Detect inclusion cycles in headers'
1178 @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help
1179 @echo ''
1da177e4 1180 @echo 'Kernel packaging:'
6c2133e1 1181 @$(MAKE) $(build)=$(package-dir) help
1da177e4
LT
1182 @echo ''
1183 @echo 'Documentation targets:'
1184 @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp
1185 @echo ''
01dee188 1186 @echo 'Architecture specific targets ($(SRCARCH)):'
1da177e4 1187 @$(if $(archhelp),$(archhelp),\
01dee188 1188 echo ' No architecture specific help defined for $(SRCARCH)')
1da177e4
LT
1189 @echo ''
1190 @$(if $(boards), \
1191 $(foreach b, $(boards), \
1192 printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \
1193 echo '')
5dffbe81
SB
1194 @$(if $(board-dirs), \
1195 $(foreach b, $(board-dirs), \
1196 printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \
1197 printf " %-16s - Show all of the above\\n" help-boards; \
1198 echo '')
1da177e4
LT
1199
1200 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
45d506bd 1201 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1da177e4 1202 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
701842e3
DK
1203 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1204 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
af07ce3e 1205 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
28bc20dc
SR
1206 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1207 @echo ' 1: warnings which may be relevant and do not occur too often'
1208 @echo ' 2: warnings which occur quite often but may still be relevant'
1209 @echo ' 3: more obscure warnings, can most likely be ignored'
a6de553d 1210 @echo ' Multiple levels can be combined with W=12 or W=123'
1da177e4
LT
1211 @echo ''
1212 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1213 @echo 'For further info see the ./README file'
1214
1215
5dffbe81
SB
1216help-board-dirs := $(addprefix help-,$(board-dirs))
1217
1218help-boards: $(help-board-dirs)
1219
1220boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))
1221
1222$(help-board-dirs): help-%:
1223 @echo 'Architecture specific targets ($(SRCARCH) $*):'
1224 @$(if $(boards-per-dir), \
1225 $(foreach b, $(boards-per-dir), \
1226 printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \
1227 echo '')
1228
1229
1da177e4
LT
1230# Documentation targets
1231# ---------------------------------------------------------------------------
1232%docs: scripts_basic FORCE
bffd2020 1233 $(Q)$(MAKE) $(build)=scripts build_docproc
1da177e4
LT
1234 $(Q)$(MAKE) $(build)=Documentation/DocBook $@
1235
1236else # KBUILD_EXTMOD
1237
1238###
1239# External module support.
1240# When building external modules the kernel used as basis is considered
1241# read-only, and no consistency checks are made and the make
1242# system is not used on the basis kernel. If updates are required
1243# in the basis kernel ordinary make commands (without M=...) must
1244# be used.
1245#
1246# The following are the only valid targets when building external
1247# modules.
1248# make M=dir clean Delete all automatically generated files
1249# make M=dir modules Make all modules in specified dir
1250# make M=dir Same as 'make M=dir modules'
1251# make M=dir modules_install
070b98bf 1252# Install the modules built in the module directory
1da177e4
LT
1253# Assumes install directory is already created
1254
1255# We are always building modules
1256KBUILD_MODULES := 1
4f193362 1257PHONY += crmodverdir
1da177e4 1258crmodverdir:
7bb9d092 1259 $(cmd_crmodverdir)
1da177e4 1260
4f193362 1261PHONY += $(objtree)/Module.symvers
1da177e4
LT
1262$(objtree)/Module.symvers:
1263 @test -e $(objtree)/Module.symvers || ( \
1264 echo; \
1265 echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \
1266 echo " is missing; modules will have no dependencies and modversions."; \
1267 echo )
1268
1269module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))
4f193362 1270PHONY += $(module-dirs) modules
1da177e4
LT
1271$(module-dirs): crmodverdir $(objtree)/Module.symvers
1272 $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
1273
1274modules: $(module-dirs)
fd54f502 1275 @$(kecho) ' Building modules, stage 2.';
b805aa0e 1276 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1da177e4 1277
4f193362 1278PHONY += modules_install
a67dc21a 1279modules_install: _emodinst_ _emodinst_post
e6304663 1280
4f193362
PS
1281install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)
1282PHONY += _emodinst_
a67dc21a 1283_emodinst_:
a67dc21a 1284 $(Q)mkdir -p $(MODLIB)/$(install-dir)
b805aa0e 1285 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
1da177e4 1286
4f193362 1287PHONY += _emodinst_post
a67dc21a
SR
1288_emodinst_post: _emodinst_
1289 $(call cmd,depmod)
1290
1da177e4
LT
1291clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))
1292
4f193362 1293PHONY += $(clean-dirs) clean
1da177e4
LT
1294$(clean-dirs):
1295 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1296
1297clean: rm-dirs := $(MODVERDIR)
88d7be03 1298clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers
1da177e4
LT
1299
1300help:
1301 @echo ' Building external modules.'
1302 @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target'
1303 @echo ''
1304 @echo ' modules - default target, build the module(s)'
1305 @echo ' modules_install - install the module'
1306 @echo ' clean - remove generated files in module directory only'
1307 @echo ''
06300b21
SR
1308
1309# Dummies...
4f193362 1310PHONY += prepare scripts
06300b21
SR
1311prepare: ;
1312scripts: ;
1da177e4
LT
1313endif # KBUILD_EXTMOD
1314
88d7be03
MM
1315clean: $(clean-dirs)
1316 $(call cmd,rmdirs)
1317 $(call cmd,rmfiles)
43f67c98 1318 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
88d7be03 1319 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
addbcdbb 1320 -o -name '*.ko.*' \
88d7be03
MM
1321 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1322 -o -name '*.symtypes' -o -name 'modules.order' \
1323 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1324 -o -name '*.gcno' \) -type f -print | xargs rm -f
1325
1da177e4
LT
1326# Generate tags for editors
1327# ---------------------------------------------------------------------------
a680eedc
SR
1328quiet_cmd_tags = GEN $@
1329 cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@
1da177e4 1330
f4ed1009 1331tags TAGS cscope gtags: FORCE
1da177e4
LT
1332 $(call cmd,tags)
1333
1da177e4
LT
1334# Scripts to check various things for consistency
1335# ---------------------------------------------------------------------------
1336
279f3dd3
PF
1337PHONY += includecheck versioncheck coccicheck namespacecheck export_report
1338
1da177e4 1339includecheck:
436f876c 1340 find $(srctree)/* $(RCS_FIND_IGNORE) \
1da177e4 1341 -name '*.[hcS]' -type f -print | sort \
80007434 1342 | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl
1da177e4
LT
1343
1344versioncheck:
2ee2d292 1345 find $(srctree)/* $(RCS_FIND_IGNORE) \
1da177e4 1346 -name '*.[hcS]' -type f -print | sort \
80007434 1347 | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl
1da177e4 1348
74425eee
NP
1349coccicheck:
1350 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1351
1da177e4
LT
1352namespacecheck:
1353 $(PERL) $(srctree)/scripts/namespace.pl
1354
295ac051
AB
1355export_report:
1356 $(PERL) $(srctree)/scripts/export_report.pl
1357
1da177e4
LT
1358endif #ifeq ($(config-targets),1)
1359endif #ifeq ($(mixed-targets),1)
1360
c398ff00 1361PHONY += checkstack kernelrelease kernelversion image_name
e3ccf6e3 1362
011e3a9a
JD
1363# UML needs a little special treatment here. It wants to use the host
1364# toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone
1365# else wants $(ARCH), including people doing cross-builds, which means
1366# that $(SUBARCH) doesn't work here.
1367ifeq ($(ARCH), um)
1368CHECKSTACK_ARCH := $(SUBARCH)
1369else
1370CHECKSTACK_ARCH := $(ARCH)
1371endif
1da177e4
LT
1372checkstack:
1373 $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
011e3a9a 1374 $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
1da177e4 1375
7b8ea53d
AW
1376kernelrelease:
1377 @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
01ab1788 1378
cb58455c 1379kernelversion:
2244cbd8 1380 @echo $(KERNELVERSION)
1da177e4 1381
c398ff00
MM
1382image_name:
1383 @echo $(KBUILD_IMAGE)
1384
ea01fa9f
BP
1385# Clear a bunch of variables before executing the submake
1386tools/: FORCE
bf35182f 1387 $(Q)mkdir -p $(objtree)/tools
a50e4333 1388 $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/
ea01fa9f
BP
1389
1390tools/%: FORCE
bf35182f 1391 $(Q)mkdir -p $(objtree)/tools
a50e4333 1392 $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $*
ea01fa9f 1393
06300b21
SR
1394# Single targets
1395# ---------------------------------------------------------------------------
bc2546a6 1396# Single targets are compatible with:
e1b8513d 1397# - build with mixed source and output
bc2546a6
SR
1398# - build with separate output dir 'make O=...'
1399# - external modules
1400#
1401# target-dir => where to store outputfile
1402# build-dir => directory in kernel source tree to use
1403
1404ifeq ($(KBUILD_EXTMOD),)
aa360879 1405 build-dir = $(patsubst %/,%,$(dir $@))
bc2546a6
SR
1406 target-dir = $(dir $@)
1407else
1408 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1409 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1410 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1411endif
1412
f6ecebd6 1413%.s: %.c prepare scripts FORCE
bc2546a6 1414 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
f6ecebd6 1415%.i: %.c prepare scripts FORCE
bc2546a6 1416 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
f6ecebd6 1417%.o: %.c prepare scripts FORCE
bc2546a6 1418 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
f6ecebd6 1419%.lst: %.c prepare scripts FORCE
bc2546a6 1420 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
f6ecebd6 1421%.s: %.S prepare scripts FORCE
bc2546a6 1422 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
f6ecebd6 1423%.o: %.S prepare scripts FORCE
bc2546a6 1424 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
15fde675
AG
1425%.symtypes: %.c prepare scripts FORCE
1426 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
06300b21 1427
bc2546a6 1428# Modules
31110ebb
SR
1429/: prepare scripts FORCE
1430 $(cmd_crmodverdir)
1431 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1432 $(build)=$(build-dir)
1433%/: prepare scripts FORCE
7bb9d092 1434 $(cmd_crmodverdir)
06300b21 1435 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
bc2546a6
SR
1436 $(build)=$(build-dir)
1437%.ko: prepare scripts FORCE
7bb9d092 1438 $(cmd_crmodverdir)
06300b21 1439 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
bc2546a6 1440 $(build)=$(build-dir) $(@:.ko=.o)
b805aa0e 1441 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
06300b21 1442
1da177e4
LT
1443# FIXME Should go into a make.lib or something
1444# ===========================================================================
1445
1446quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1447 cmd_rmdirs = rm -rf $(rm-dirs)
1448
1449quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1450 cmd_rmfiles = rm -f $(rm-files)
1451