Blame view
Makefile
50.9 KB
1da177e4c
|
1 2 |
VERSION = 2 PATCHLEVEL = 6 |
c56eb8fb6
|
3 |
SUBLEVEL = 38 |
85e2efbb1
|
4 |
EXTRAVERSION = -rc5 |
cd07202cc
|
5 |
NAME = Flesh-Eating Bats with Fangs |
1da177e4c
|
6 7 8 9 10 11 |
# *DOCUMENTATION* # To see a list of typical targets execute "make help" # More info can be located in ./README # Comments in this file are targeted only to the developer, do not # expect to learn how to build the kernel reading this file. |
15964864c
|
12 13 |
# Do not: # o use make's built-in rules and variables |
d384e35a2
|
14 |
# (this increases performance and avoids hard-to-debug behaviour); |
15964864c
|
15 16 |
# o print "Entering directory ..."; MAKEFLAGS += -rR --no-print-directory |
1da177e4c
|
17 |
|
c051346b7
|
18 |
# Avoid funny character set dependencies |
06b5dc646
|
19 |
unexport LC_ALL |
c051346b7
|
20 21 |
LC_COLLATE=C LC_NUMERIC=C |
07105202b
|
22 |
export LC_COLLATE LC_NUMERIC |
c051346b7
|
23 |
|
1da177e4c
|
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 |
# We are using a recursive build, so we need to do a little thinking # to get the ordering right. # # Most importantly: sub-Makefiles should only ever modify files in # their own directory. If in some directory we have a dependency on # a file in another dir (which doesn't happen often, but it's often # unavoidable when linking the built-in.o targets which finally # turn into vmlinux), we will call a sub make in that other dir, and # after that we are sure that everything which is in that other dir # is now up to date. # # The only cases where we need to modify files which have global # effects are thus separated out and done before the recursive # descending is started. They are now explicitly listed as the # prepare rule. # To put more focus on warnings, be less verbose as default # Use 'make V=1' to see the full commands |
b8b0618cf
|
42 43 |
ifeq ("$(origin V)", "command line") KBUILD_VERBOSE = $(V) |
1da177e4c
|
44 45 46 47 |
endif ifndef KBUILD_VERBOSE KBUILD_VERBOSE = 0 endif |
1c7bafe72
|
48 49 50 51 52 53 54 55 56 |
# Call a source code checker (by default, "sparse") as part of the # C compilation. # # Use 'make C=1' to enable checking of only re-compiled files. # Use 'make C=2' to enable checking of *all* source files, regardless # of whether they are re-compiled or not. # # See the file "Documentation/sparse.txt" for more details, including # where to get the "sparse" utility. |
1da177e4c
|
57 |
|
b8b0618cf
|
58 59 |
ifeq ("$(origin C)", "command line") KBUILD_CHECKSRC = $(C) |
1da177e4c
|
60 61 62 63 64 65 66 67 68 69 70 |
endif ifndef KBUILD_CHECKSRC KBUILD_CHECKSRC = 0 endif # Use make M=dir to specify directory of external module to build # Old syntax make ... SUBDIRS=$PWD is still supported # Setting the environment variable KBUILD_EXTMOD take precedence ifdef SUBDIRS KBUILD_EXTMOD ?= $(SUBDIRS) endif |
1da177e4c
|
71 |
|
b8b0618cf
|
72 73 74 |
ifeq ("$(origin M)", "command line") KBUILD_EXTMOD := $(M) endif |
1da177e4c
|
75 76 77 78 79 80 |
# kbuild supports saving output files in a separate directory. # To locate output files in a separate directory two syntaxes are supported. # In both cases the working directory must be the root of the kernel src. # 1) O= # Use "make O=dir/to/store/output/files/" |
070b98bfd
|
81 |
# |
1da177e4c
|
82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 |
# 2) Set KBUILD_OUTPUT # Set the environment variable KBUILD_OUTPUT to point to the directory # where the output files shall be placed. # export KBUILD_OUTPUT=dir/to/store/output/files/ # make # # The O= assignment takes precedence over the KBUILD_OUTPUT environment # variable. # KBUILD_SRC is set on invocation of make in OBJ directory # KBUILD_SRC is not intended to be used by the regular user (for now) ifeq ($(KBUILD_SRC),) # OK, Make called in directory where kernel src resides # Do we want to locate output files in a separate directory? |
b8b0618cf
|
98 99 |
ifeq ("$(origin O)", "command line") KBUILD_OUTPUT := $(O) |
1da177e4c
|
100 101 102 |
endif # That's our default target when none is given on the command line |
4f1933620
|
103 |
PHONY := _all |
1da177e4c
|
104 |
_all: |
1cacc9ab8
|
105 106 |
# Cancel implicit rules on top Makefile $(CURDIR)/Makefile Makefile: ; |
1da177e4c
|
107 108 109 110 111 112 113 |
ifneq ($(KBUILD_OUTPUT),) # Invoke a second make in the output directory, passing relevant variables # check that the output directory actually exists saved-output := $(KBUILD_OUTPUT) KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) $(if $(KBUILD_OUTPUT),, \ $(error output directory "$(saved-output)" does not exist)) |
1da177e4c
|
114 |
|
0b35786d7
|
115 |
PHONY += $(MAKECMDGOALS) sub-make |
1cacc9ab8
|
116 |
$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make |
0b35786d7
|
117 118 119 |
$(Q)@: sub-make: FORCE |
23a45e2c0
|
120 121 |
$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ KBUILD_SRC=$(CURDIR) \ |
0b35786d7
|
122 123 |
KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ $(filter-out _all sub-make,$(MAKECMDGOALS)) |
1da177e4c
|
124 125 126 127 128 129 130 131 132 133 134 |
# Leave processing to above invocation of make skip-makefile := 1 endif # ifneq ($(KBUILD_OUTPUT),) endif # ifeq ($(KBUILD_SRC),) # We process the rest of the Makefile if this is the final invocation of make ifeq ($(skip-makefile),) # If building an external module we do not care about the all: rule # but instead _all depend on modules |
4f1933620
|
135 |
PHONY += all |
1da177e4c
|
136 137 138 139 140 141 142 |
ifeq ($(KBUILD_EXTMOD),) _all: all else _all: modules endif srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) |
1da177e4c
|
143 144 145 |
objtree := $(CURDIR) src := $(srctree) obj := $(objtree) |
0f558c333
|
146 |
VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) |
1da177e4c
|
147 |
|
112942353
|
148 |
export srctree objtree VPATH |
1da177e4c
|
149 |
|
1da177e4c
|
150 151 152 153 154 155 156 157 158 |
# SUBARCH tells the usermode build what the underlying arch is. That is set # first, and if a usermode build is happening, the "ARCH=um" on the command # line overrides the setting of ARCH below. If a native build is happening, # then ARCH is assigned, getting whatever value it gets normally, and # SUBARCH is subsequently ignored. SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ -e s/arm.*/arm/ -e s/sa110/arm/ \ |
39990b5eb
|
159 |
-e s/s390x/s390/ -e s/parisc64/parisc/ \ |
236b19574
|
160 |
-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ |
3cc000b58
|
161 |
-e s/sh[234].*/sh/ ) |
1da177e4c
|
162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 |
# Cross compiling and selecting different set of gcc/bin-utils # --------------------------------------------------------------------------- # # When performing cross compilation for other architectures ARCH shall be set # to the target architecture. (See arch/* for the possibilities). # ARCH can be set during invocation of make: # make ARCH=ia64 # Another way is to have ARCH set in the environment. # The default ARCH is the host where make is executed. # CROSS_COMPILE specify the prefix used for all executables used # during compilation. Only gcc and related bin-utils executables # are prefixed with $(CROSS_COMPILE). # CROSS_COMPILE can be set on the command line # make CROSS_COMPILE=ia64-linux- # Alternatively CROSS_COMPILE can be set in the environment. |
843364660
|
179 180 |
# A third alternative is to store a setting in .config so that plain # "make" in the configured kernel build directory always uses that. |
1da177e4c
|
181 182 |
# Default value for CROSS_COMPILE is not to prefix executables # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile |
4ce6efed4
|
183 |
export KBUILD_BUILDHOST := $(SUBARCH) |
2331d1a6c
|
184 |
ARCH ?= $(SUBARCH) |
843364660
|
185 |
CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) |
1da177e4c
|
186 187 |
# Architecture as present in compile.h |
6752ed90d
|
188 189 |
UTS_MACHINE := $(ARCH) SRCARCH := $(ARCH) |
1da177e4c
|
190 |
|
d746d647f
|
191 192 193 194 195 196 197 |
# Additional ARCH settings for x86 ifeq ($(ARCH),i386) SRCARCH := x86 endif ifeq ($(ARCH),x86_64) SRCARCH := x86 endif |
74b469f2e
|
198 |
|
5e5387900
|
199 |
# Additional ARCH settings for sparc |
e69f58c03
|
200 201 202 |
ifeq ($(ARCH),sparc32) SRCARCH := sparc endif |
a439fe51a
|
203 |
ifeq ($(ARCH),sparc64) |
5e5387900
|
204 |
SRCARCH := sparc |
a439fe51a
|
205 |
endif |
2fb9b1bd9
|
206 |
|
3cc000b58
|
207 208 209 210 |
# Additional ARCH settings for sh ifeq ($(ARCH),sh64) SRCARCH := sh endif |
5e5387900
|
211 212 |
# Where to locate arch specific headers hdr-arch := $(SRCARCH) |
49148020b
|
213 214 215 |
ifeq ($(ARCH),m68knommu) hdr-arch := m68k endif |
14cdd3c40
|
216 |
KCONFIG_CONFIG ?= .config |
41263fc67
|
217 |
export KCONFIG_CONFIG |
14cdd3c40
|
218 |
|
1da177e4c
|
219 220 221 222 |
# SHELL used by kbuild CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ else if [ -x /bin/bash ]; then echo /bin/bash; \ else echo sh; fi ; fi) |
070b98bfd
|
223 224 |
HOSTCC = gcc HOSTCXX = g++ |
25583d4b5
|
225 |
HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer |
070b98bfd
|
226 |
HOSTCXXFLAGS = -O2 |
1da177e4c
|
227 |
|
070b98bfd
|
228 229 |
# Decide whether to build built-in, modular, or both. # Normally, just do built-in. |
1da177e4c
|
230 231 232 233 234 235 236 |
KBUILD_MODULES := KBUILD_BUILTIN := 1 # If we have only "make modules", don't compile built-in objects. # When we're building modules with modversions, we need to consider # the built-in objects during the descend as well, in order to |
070b98bfd
|
237 |
# make sure the checksums are up to date before we record them. |
1da177e4c
|
238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 |
ifeq ($(MAKECMDGOALS),modules) KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) endif # If we have "make <whatever> modules", compile modules # in addition to whatever we do anyway. # Just "make" or "make all" shall build modules as well ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) KBUILD_MODULES := 1 endif ifeq ($(MAKECMDGOALS),) KBUILD_MODULES := 1 endif |
e579d351b
|
254 |
export KBUILD_MODULES KBUILD_BUILTIN |
1da177e4c
|
255 256 257 258 259 260 261 262 263 264 265 266 267 268 |
export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD # Beautify output # --------------------------------------------------------------------------- # # Normally, we echo the whole command before executing it. By making # that echo $($(quiet)$(cmd)), we now have the possibility to set # $(quiet) to choose other forms of output instead, e.g. # # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< # # If $(quiet) is empty, the whole command will be printed. # If it is set to "quiet_", only the short version will be printed. |
070b98bfd
|
269 |
# If it is set to "silent_", nothing will be printed at all, since |
1da177e4c
|
270 271 |
# the variable $(silent_cmd_cc_o_c) doesn't exist. # |
a58a414fd
|
272 |
# A simple variant is to prefix commands with $(Q) - that's useful |
1da177e4c
|
273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 |
# for commands that shall be hidden in non-verbose mode. # # $(Q)ln $@ :< # # If KBUILD_VERBOSE equals 0 then the above command will be hidden. # If KBUILD_VERBOSE equals 1 then the above command is displayed. ifeq ($(KBUILD_VERBOSE),1) quiet = Q = else quiet=quiet_ Q = @ endif # If the user is running make -s (silent mode), suppress echoing of # commands ifneq ($(findstring s,$(MAKEFLAGS)),) quiet=silent_ endif export quiet Q KBUILD_VERBOSE |
1da177e4c
|
296 297 298 |
# Look for make include files relative to root of kernel src MAKEFLAGS += --include-dir=$(srctree) |
1cacc9ab8
|
299 300 |
# We need some generic definitions (do not try to remake the file). $(srctree)/scripts/Kbuild.include: ; |
15964864c
|
301 |
include $(srctree)/scripts/Kbuild.include |
1da177e4c
|
302 303 304 305 306 307 308 309 310 311 312 313 314 315 |
# Make variables (CC, etc...) AS = $(CROSS_COMPILE)as LD = $(CROSS_COMPILE)ld CC = $(CROSS_COMPILE)gcc CPP = $(CC) -E AR = $(CROSS_COMPILE)ar NM = $(CROSS_COMPILE)nm STRIP = $(CROSS_COMPILE)strip OBJCOPY = $(CROSS_COMPILE)objcopy OBJDUMP = $(CROSS_COMPILE)objdump AWK = awk GENKSYMS = scripts/genksyms/genksyms |
caa27b66b
|
316 |
INSTALLKERNEL := installkernel |
1da177e4c
|
317 318 319 320 |
DEPMOD = /sbin/depmod KALLSYMS = scripts/kallsyms PERL = perl CHECK = sparse |
80a7d1d99
|
321 322 |
CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ -Wbitwise -Wno-return-void $(CF) |
6588169d5
|
323 324 325 |
CFLAGS_MODULE = AFLAGS_MODULE = LDFLAGS_MODULE = |
1da177e4c
|
326 327 |
CFLAGS_KERNEL = AFLAGS_KERNEL = |
2521f2c22
|
328 |
CFLAGS_GCOV = -fprofile-arcs -ftest-coverage |
1da177e4c
|
329 330 331 332 |
# Use LINUXINCLUDE when you must reference the include/ directory. # Needed to be compatible with the O= option |
24a675e8b
|
333 |
LINUXINCLUDE := -I$(srctree)/arch/$(hdr-arch)/include -Iinclude \ |
96f13045b
|
334 |
$(if $(KBUILD_SRC), -I$(srctree)/include) \ |
264a26838
|
335 |
-include include/generated/autoconf.h |
1da177e4c
|
336 |
|
d8672b40d
|
337 |
KBUILD_CPPFLAGS := -D__KERNEL__ |
1da177e4c
|
338 |
|
a0f97e06a
|
339 |
KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ |
94bed2a9c
|
340 |
-fno-strict-aliasing -fno-common \ |
a8735821d
|
341 |
-Werror-implicit-function-declaration \ |
a3ca86aea
|
342 343 |
-Wno-format-security \ -fno-delete-null-pointer-checks |
80c00ba94
|
344 345 |
KBUILD_AFLAGS_KERNEL := KBUILD_CFLAGS_KERNEL := |
222d394d3
|
346 |
KBUILD_AFLAGS := -D__ASSEMBLY__ |
6588169d5
|
347 348 349 |
KBUILD_AFLAGS_MODULE := -DMODULE KBUILD_CFLAGS_MODULE := -DMODULE KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds |
1da177e4c
|
350 |
|
f1d28fb04
|
351 352 |
# Read KERNELRELEASE from include/config/kernel.release (if it exists) KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) |
2244cbd8a
|
353 |
KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) |
cb58455c4
|
354 |
|
070b98bfd
|
355 |
export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION |
80ef88d6d
|
356 |
export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC |
caa27b66b
|
357 358 |
export CPP AR NM STRIP OBJCOPY OBJDUMP export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE |
070b98bfd
|
359 |
export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS |
1da177e4c
|
360 |
|
06c5040cd
|
361 |
export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS |
2521f2c22
|
362 |
export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV |
222d394d3
|
363 |
export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE |
6588169d5
|
364 |
export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE |
80c00ba94
|
365 |
export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL |
1da177e4c
|
366 367 368 369 370 |
# When compiling out-of-tree modules, put MODVERDIR in the module # tree rather than in the kernel tree. The kernel tree might # even be read-only. export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions |
1da177e4c
|
371 |
# Files to ignore in find ... statements |
406119f49
|
372 373 |
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 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git |
1da177e4c
|
374 375 376 377 378 |
# =========================================================================== # Rules shared between *config targets and build targets # Basic helpers built in scripts/ |
4f1933620
|
379 |
PHONY += scripts_basic |
1da177e4c
|
380 381 |
scripts_basic: $(Q)$(MAKE) $(build)=scripts/basic |
638adb056
|
382 |
$(Q)rm -f .tmp_quiet_recordmcount |
1da177e4c
|
383 |
|
cd05e6bdc
|
384 385 |
# To avoid any implicit rule to kick in, define an empty command. scripts/basic/%: scripts_basic ; |
4f1933620
|
386 |
PHONY += outputmakefile |
fd5f0cd6b
|
387 388 389 |
# outputmakefile generates a Makefile in the output directory, if using a # separate output directory. This allows convenient use of make in the # output directory. |
1da177e4c
|
390 |
outputmakefile: |
fd5f0cd6b
|
391 |
ifneq ($(KBUILD_SRC),) |
929799973
|
392 |
$(Q)ln -fsn $(srctree) source |
fd5f0cd6b
|
393 394 395 |
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) endif |
1da177e4c
|
396 397 398 399 400 |
# To make sure we do not include .config for any of the *config targets # catch them early, and hand them over to scripts/kconfig/Makefile # It is allowed to specify more targets when calling make, including # mixing *config targets and build targets. |
070b98bfd
|
401 |
# For example 'make oldconfig all'. |
1da177e4c
|
402 403 |
# Detect when mixed targets is specified, and make a second invocation # of make so .config is not included in this case either (for *config). |
3eb3c740f
|
404 |
no-dot-config-targets := clean mrproper distclean \ |
74425eee7
|
405 |
cscope TAGS tags help %docs check% coccicheck \ |
3eb3c740f
|
406 |
include/linux/version.h headers_% \ |
4aed2fd8e
|
407 |
kernelversion %src-pkg |
1da177e4c
|
408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 |
config-targets := 0 mixed-targets := 0 dot-config := 1 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) dot-config := 0 endif endif ifeq ($(KBUILD_EXTMOD),) ifneq ($(filter config %config,$(MAKECMDGOALS)),) config-targets := 1 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) mixed-targets := 1 endif endif endif ifeq ($(mixed-targets),1) # =========================================================================== # We're called with mixed targets (*config and build targets). # Handle them one by one. %:: FORCE $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ else ifeq ($(config-targets),1) # =========================================================================== # *config targets only - make sure prerequisites are updated, and descend # in scripts/kconfig to make the *config target # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. # KBUILD_DEFCONFIG may point out an alternative default configuration # used for 'make defconfig' |
74b469f2e
|
445 |
include $(srctree)/arch/$(SRCARCH)/Makefile |
61bee2044
|
446 |
export KBUILD_DEFCONFIG KBUILD_KCONFIG |
1da177e4c
|
447 |
|
31110ebbe
|
448 449 450 451 452 |
config: scripts_basic outputmakefile FORCE $(Q)mkdir -p include/linux include/config $(Q)$(MAKE) $(build)=scripts/kconfig $@ %config: scripts_basic outputmakefile FORCE |
c955ccafc
|
453 |
$(Q)mkdir -p include/linux include/config |
1da177e4c
|
454 455 456 457 458 459 460 461 462 463 |
$(Q)$(MAKE) $(build)=scripts/kconfig $@ else # =========================================================================== # Build targets only - this includes vmlinux, arch specific targets, clean # targets and others. In general all targets except *config targets. ifeq ($(KBUILD_EXTMOD),) # Additional helpers built in scripts/ # Carefully list dependencies so we do not try to build scripts twice |
070b98bfd
|
464 |
# in parallel |
4f1933620
|
465 |
PHONY += scripts |
bc081dd6e
|
466 |
scripts: scripts_basic include/config/auto.conf include/config/tristate.conf |
1da177e4c
|
467 |
$(Q)$(MAKE) $(build)=$(@) |
1da177e4c
|
468 469 |
# Objects we will link into vmlinux / subdirs we need to visit init-y := init/ |
4d2acfbfd
|
470 |
drivers-y := drivers/ sound/ firmware/ |
1da177e4c
|
471 472 473 474 475 476 |
net-y := net/ libs-y := lib/ core-y := usr/ endif # KBUILD_EXTMOD ifeq ($(dot-config),1) |
9ee4e3365
|
477 478 |
# Read in config -include include/config/auto.conf |
1da177e4c
|
479 |
|
9ee4e3365
|
480 |
ifeq ($(KBUILD_EXTMOD),) |
1da177e4c
|
481 482 |
# Read in dependencies to all Kconfig* files, make sure to run # oldconfig if changes are detected. |
c955ccafc
|
483 |
-include include/config/auto.conf.cmd |
1da177e4c
|
484 |
|
1da177e4c
|
485 |
# To avoid any implicit rule to kick in, define an empty command |
14cdd3c40
|
486 |
$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; |
1da177e4c
|
487 |
|
c955ccafc
|
488 |
# If .config is newer than include/config/auto.conf, someone tinkered |
752625cff
|
489 |
# with it and forgot to run make oldconfig. |
070b98bfd
|
490 |
# if auto.conf.cmd is missing then we are probably in a cleaned tree so |
752625cff
|
491 |
# we execute the config step to be sure to catch updated Kconfig files |
bc081dd6e
|
492 |
include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd |
1da177e4c
|
493 494 |
$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig else |
264a26838
|
495 |
# external modules needs include/generated/autoconf.h and include/config/auto.conf |
9ee4e3365
|
496 497 498 499 |
# but do not care if they are up-to-date. Use auto.conf to trigger the test PHONY += include/config/auto.conf include/config/auto.conf: |
264a26838
|
500 |
$(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ |
9ee4e3365
|
501 502 |
echo; \ echo " ERROR: Kernel configuration is invalid."; \ |
264a26838
|
503 |
echo " include/generated/autoconf.h or $@ are missing.";\ |
9ee4e3365
|
504 505 506 507 508 |
echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ echo; \ /bin/false) endif # KBUILD_EXTMOD |
c955ccafc
|
509 |
|
1da177e4c
|
510 511 |
else # Dummy target needed, because used as prerequisite |
c955ccafc
|
512 |
include/config/auto.conf: ; |
9ee4e3365
|
513 |
endif # $(dot-config) |
1da177e4c
|
514 515 516 517 |
# The all: target is the default when no target is given on the # command line. # This allow a user to issue only 'make' to build a kernel including modules |
c84471614
|
518 |
# Defaults to vmlinux, but the arch makefile usually adds further targets |
1da177e4c
|
519 520 521 |
all: vmlinux ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE |
a0f97e06a
|
522 |
KBUILD_CFLAGS += -Os |
1da177e4c
|
523 |
else |
a0f97e06a
|
524 |
KBUILD_CFLAGS += -O2 |
1da177e4c
|
525 |
endif |
bef5b54bd
|
526 |
include $(srctree)/arch/$(SRCARCH)/Makefile |
08f67461c
|
527 |
ifneq ($(CONFIG_FRAME_WARN),0) |
35bb5b1e0
|
528 529 |
KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) endif |
e06b8b98d
|
530 |
# Force gcc to behave correct even for buggy distributions |
5d707e9c8
|
531 |
ifndef CONFIG_CC_STACKPROTECTOR |
e06b8b98d
|
532 |
KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) |
5d707e9c8
|
533 |
endif |
e06b8b98d
|
534 |
|
1da177e4c
|
535 |
ifdef CONFIG_FRAME_POINTER |
a0f97e06a
|
536 |
KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls |
1da177e4c
|
537 |
else |
7e9501fde
|
538 539 540 541 542 543 |
# Some targets (ARM with Thumb2, for example), can't be built with frame # pointers. For those, we don't have FUNCTION_TRACER automatically # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is # incompatible with -fomit-frame-pointer with current GCC, so we don't use # -fomit-frame-pointer with FUNCTION_TRACER. ifndef CONFIG_FUNCTION_TRACER |
a0f97e06a
|
544 |
KBUILD_CFLAGS += -fomit-frame-pointer |
1da177e4c
|
545 |
endif |
7e9501fde
|
546 |
endif |
1da177e4c
|
547 548 |
ifdef CONFIG_DEBUG_INFO |
a0f97e06a
|
549 |
KBUILD_CFLAGS += -g |
222d394d3
|
550 |
KBUILD_AFLAGS += -gdwarf-2 |
1da177e4c
|
551 |
endif |
d6f4ceb79
|
552 553 554 |
ifdef CONFIG_DEBUG_INFO_REDUCED KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) endif |
606576ce8
|
555 |
ifdef CONFIG_FUNCTION_TRACER |
16444a8a4
|
556 |
KBUILD_CFLAGS += -pg |
72441cb1f
|
557 |
ifdef CONFIG_DYNAMIC_FTRACE |
cf4db2597
|
558 |
ifdef CONFIG_HAVE_C_RECORDMCOUNT |
72441cb1f
|
559 560 561 562 |
BUILD_C_RECORDMCOUNT := y export BUILD_C_RECORDMCOUNT endif endif |
16444a8a4
|
563 |
endif |
91341d4b2
|
564 565 566 567 |
# We trigger additional mismatches with less inlining ifdef CONFIG_DEBUG_SECTION_MISMATCH KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) endif |
e8e699317
|
568 |
# arch Makefile may override CC so keep this after arch Makefile is included |
e8f5bdb02
|
569 |
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) |
e8e699317
|
570 |
CHECKFLAGS += $(NOSTDINC_FLAGS) |
1da177e4c
|
571 |
# warn about C99 declaration after statement |
a0f97e06a
|
572 |
KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) |
1da177e4c
|
573 |
|
070b98bfd
|
574 |
# disable pointer signed / unsigned warnings in gcc 4.0 |
a0f97e06a
|
575 |
KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,) |
1da177e4c
|
576 |
|
fe8d0a410
|
577 |
# disable invalid "can't wrap" optimizations for signed / pointers |
a137802ee
|
578 |
KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) |
d0115552c
|
579 |
|
8f7f5c9fc
|
580 581 |
# conserve stack if available KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) |
bf5438fca
|
582 583 584 585 |
# check for 'asm goto' ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO endif |
06c5040cd
|
586 |
# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments |
69ee0b352
|
587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 |
# But warn user when we do so warn-assign = \ $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)") ifneq ($(KCPPFLAGS),) $(call warn-assign,CPPFLAGS) KBUILD_CPPFLAGS += $(KCPPFLAGS) endif ifneq ($(KAFLAGS),) $(call warn-assign,AFLAGS) KBUILD_AFLAGS += $(KAFLAGS) endif ifneq ($(KCFLAGS),) $(call warn-assign,CFLAGS) KBUILD_CFLAGS += $(KCFLAGS) endif |
52bcc3308
|
603 |
|
18991197b
|
604 605 |
# Use --build-id when available. LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ |
f86fd3066
|
606 |
$(call cc-ldoption, -Wl$(comma)--build-id,)) |
6588169d5
|
607 |
KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) |
18991197b
|
608 |
LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) |
5d7d18f5b
|
609 |
ifeq ($(CONFIG_STRIP_ASM_SYMS),y) |
d79a27195
|
610 |
LDFLAGS_vmlinux += $(call ld-option, -X,) |
5d7d18f5b
|
611 |
endif |
1da177e4c
|
612 |
# Default kernel image to build when no specific target is given. |
070b98bfd
|
613 |
# KBUILD_IMAGE may be overruled on the command line or |
1da177e4c
|
614 615 616 617 618 619 620 621 622 623 624 625 626 |
# set in the environment # Also any assignments in arch/$(ARCH)/Makefile take precedence over # this default value export KBUILD_IMAGE ?= vmlinux # # INSTALL_PATH specifies where to place the updated kernel and system map # images. Default is /boot, but you can set it to other values export INSTALL_PATH ?= /boot # # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory # relocations required by build roots. This is not defined in the |
070b98bfd
|
627 |
# makefile but the argument can be passed to make if needed. |
1da177e4c
|
628 |
# |
df9df036d
|
629 |
MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
1da177e4c
|
630 |
export MODLIB |
ac031f26e
|
631 |
# |
2ea038917
|
632 633 634 635 |
# INSTALL_MOD_STRIP, if defined, will cause modules to be # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then # the default option --strip-debug will be used. Otherwise, # INSTALL_MOD_STRIP will used as the options to the strip command. |
ac031f26e
|
636 637 |
ifdef INSTALL_MOD_STRIP ifeq ($(INSTALL_MOD_STRIP),1) |
2ea038917
|
638 |
mod_strip_cmd = $(STRIP) --strip-debug |
ac031f26e
|
639 |
else |
2ea038917
|
640 |
mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) |
ac031f26e
|
641 642 |
endif # INSTALL_MOD_STRIP=1 else |
2ea038917
|
643 |
mod_strip_cmd = true |
ac031f26e
|
644 645 |
endif # INSTALL_MOD_STRIP export mod_strip_cmd |
1da177e4c
|
646 647 |
ifeq ($(KBUILD_EXTMOD),) |
3a65dfe8c
|
648 |
core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ |
1da177e4c
|
649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 |
vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ $(net-y) $(net-m) $(libs-y) $(libs-m))) vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ $(init-n) $(init-) \ $(core-n) $(core-) $(drivers-n) $(drivers-) \ $(net-n) $(net-) $(libs-n) $(libs-)))) init-y := $(patsubst %/, %/built-in.o, $(init-y)) core-y := $(patsubst %/, %/built-in.o, $(core-y)) drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) net-y := $(patsubst %/, %/built-in.o, $(net-y)) libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) libs-y := $(libs-y1) $(libs-y2) # Build vmlinux # --------------------------------------------------------------------------- |
070b98bfd
|
669 |
# vmlinux is built from the objects selected by $(vmlinux-init) and |
1da177e4c
|
670 |
# $(vmlinux-main). Most are built-in.o files from top-level directories |
2462566f2
|
671 |
# in the kernel tree, others are specified in arch/$(ARCH)/Makefile. |
1da177e4c
|
672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 |
# Ordering when linking is important, and $(vmlinux-init) must be first. # # vmlinux # ^ # | # +-< $(vmlinux-init) # | +--< init/version.o + more # | # +--< $(vmlinux-main) # | +--< driver/built-in.o mm/built-in.o + more # | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) # # vmlinux version (uname -v) cannot be updated during normal # descending-into-subdirs phase since we do not yet know if we need to # update vmlinux. # Therefore this step is delayed until just before final link of vmlinux - # except in the kallsyms case where it is done just before adding the # symbols to the kernel. # # System.map is generated to document addresses of all kernel symbols vmlinux-init := $(head-y) $(init-y) vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) vmlinux-all := $(vmlinux-init) $(vmlinux-main) |
6752ed90d
|
697 |
vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds |
85bd2fddd
|
698 |
export KBUILD_VMLINUX_OBJS := $(vmlinux-all) |
1da177e4c
|
699 700 701 702 703 704 705 |
# Rule to link vmlinux - also used during CONFIG_KALLSYMS # May be overridden by arch/$(ARCH)/Makefile quiet_cmd_vmlinux__ ?= LD $@ cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ -T $(vmlinux-lds) $(vmlinux-init) \ --start-group $(vmlinux-main) --end-group \ |
741f98fe2
|
706 |
$(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) |
1da177e4c
|
707 708 709 710 |
# Generate new vmlinux version quiet_cmd_vmlinux_version = GEN .version cmd_vmlinux_version = set -e; \ |
4e25d8bb9
|
711 712 713 714 715 716 717 |
if [ ! -r .version ]; then \ rm -f .version; \ echo 1 >.version; \ else \ mv .version .old_version; \ expr 0$$(cat .old_version) + 1 >.version; \ fi; \ |
1da177e4c
|
718 719 720 |
$(MAKE) $(build)=init # Generate System.map |
070b98bfd
|
721 |
quiet_cmd_sysmap = SYSMAP |
1da177e4c
|
722 723 724 725 726 |
cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap # Link of vmlinux # If CONFIG_KALLSYMS is set .version is already updated # Generate System.map and verify that the content is consistent |
39ca371c4
|
727 728 |
# Use + in front of the vmlinux_version rule to silent warning with make -j2 # First command is ':' to allow us to use + in front of the rule |
1da177e4c
|
729 |
define rule_vmlinux__ |
39ca371c4
|
730 |
: |
1da177e4c
|
731 732 733 734 |
$(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) $(call cmd,vmlinux__) $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd |
4635281c8
|
735 736 737 738 739 740 |
$(Q)$(if $($(quiet)cmd_sysmap), \ echo ' $($(quiet)cmd_sysmap) System.map' &&) \ $(cmd_sysmap) $@ System.map; \ if [ $$? -ne 0 ]; then \ rm -f $@; \ /bin/false; \ |
1da177e4c
|
741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 |
fi; $(verify_kallsyms) endef ifdef CONFIG_KALLSYMS # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) # It's a three stage process: # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is # empty # Running kallsyms on that gives us .tmp_kallsyms1.o with # the right size - vmlinux version (uname -v) is updated during this step # o .tmp_vmlinux2 now has a __kallsyms section of the right size, # but due to the added section, some addresses have shifted. # From here, we generate a correct .tmp_kallsyms2.o # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. # o Verify that the System.map from vmlinux matches the map from # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a # temporary bypass to allow the kernel to be built while the # maintainers work out what went wrong with kallsyms. ifdef CONFIG_KALLSYMS_EXTRA_PASS last_kallsyms := 3 else last_kallsyms := 2 endif kallsyms.o := .tmp_kallsyms$(last_kallsyms).o define verify_kallsyms |
4635281c8
|
773 774 |
$(Q)$(if $($(quiet)cmd_sysmap), \ echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ |
1da177e4c
|
775 |
$(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map |
4635281c8
|
776 777 778 |
$(Q)cmp -s System.map .tmp_System.map || \ (echo Inconsistent kallsyms data; \ echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ |
1da177e4c
|
779 780 781 782 783 |
rm .tmp_kallsyms* ; /bin/false ) endef # Update vmlinux version before link # Use + in front of this rule to silent warning about make -j1 |
72ba47c1b
|
784 |
# First command is ':' to allow us to use + in front of this rule |
1da177e4c
|
785 786 |
cmd_ksym_ld = $(cmd_vmlinux__) define rule_ksym_ld |
72ba47c1b
|
787 |
: |
1da177e4c
|
788 789 790 791 792 793 794 |
+$(call cmd,vmlinux_version) $(call cmd,vmlinux__) $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd endef # Generate .S file with all kernel symbols quiet_cmd_kallsyms = KSYM $@ |
2ea038917
|
795 796 |
cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ |
9bb482476
|
797 |
|
2ea038917
|
798 |
.tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE |
1da177e4c
|
799 |
$(call if_changed_dep,as_o_S) |
2ea038917
|
800 |
.tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) |
1da177e4c
|
801 802 803 |
$(call cmd,kallsyms) # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version |
2ea038917
|
804 805 |
.tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE $(call if_changed_rule,ksym_ld) |
1da177e4c
|
806 |
|
2ea038917
|
807 808 |
.tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE $(call if_changed,vmlinux__) |
1da177e4c
|
809 |
|
2ea038917
|
810 811 |
.tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE $(call if_changed,vmlinux__) |
1da177e4c
|
812 813 814 |
# Needs to visit scripts/ before $(KALLSYMS) can be used. $(KALLSYMS): scripts ; |
33bc25eae
|
815 816 817 818 819 820 821 822 823 |
# Generate some data for debugging strange kallsyms problems debug_kallsyms: .tmp_map$(last_kallsyms) .tmp_map%: .tmp_vmlinux% FORCE ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ .tmp_map3: .tmp_map2 .tmp_map2: .tmp_map1 |
1da177e4c
|
824 |
endif # ifdef CONFIG_KALLSYMS |
741f98fe2
|
825 826 827 828 829 |
# Do modpost on a prelinked vmlinux. The finally linked vmlinux has # relevant sections renamed as per the linker script. quiet_cmd_vmlinux-modpost = LD $@ cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \ $(vmlinux-init) --start-group $(vmlinux-main) --end-group \ |
90ebd878a
|
830 |
$(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^) |
741f98fe2
|
831 832 833 834 835 836 |
define rule_vmlinux-modpost : +$(call cmd,vmlinux-modpost) $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@ $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd endef |
1da177e4c
|
837 |
# vmlinux image - including updated kernel symbols |
310f8243a
|
838 |
vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE |
0f836e5fe
|
839 |
ifdef CONFIG_HEADERS_CHECK |
0e7af8d04
|
840 |
$(Q)$(MAKE) -f $(srctree)/Makefile headers_check |
0f836e5fe
|
841 |
endif |
267c4025f
|
842 843 844 |
ifdef CONFIG_SAMPLES $(Q)$(MAKE) $(build)=samples endif |
3794f3e81
|
845 846 847 |
ifdef CONFIG_BUILD_DOCSRC $(Q)$(MAKE) $(build)=Documentation endif |
741f98fe2
|
848 |
$(call vmlinux-modpost) |
1da177e4c
|
849 |
$(call if_changed_rule,vmlinux__) |
4e25d8bb9
|
850 |
$(Q)rm -f .old_version |
1da177e4c
|
851 |
|
310f8243a
|
852 |
# build vmlinux.o first to catch section mismatch errors early |
cf87dcd14
|
853 854 855 |
ifdef CONFIG_KALLSYMS .tmp_vmlinux1: vmlinux.o endif |
90ebd878a
|
856 857 858 |
modpost-init := $(filter-out init/built-in.o, $(vmlinux-init)) vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE |
741f98fe2
|
859 |
$(call if_changed_rule,vmlinux-modpost) |
1da177e4c
|
860 861 862 863 864 865 866 867 868 |
# The actual objects are generated when descending, # make sure no implicit rule kicks in $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; # Handle descending into subdirectories listed in $(vmlinux-dirs) # Preset locale variables to speed up the build process. Limit locale # tweaks to this spot to avoid wrong language settings when running # make menuconfig etc. # Error messages still appears in the original language |
4f1933620
|
869 |
PHONY += $(vmlinux-dirs) |
5bb782690
|
870 |
$(vmlinux-dirs): prepare scripts |
1da177e4c
|
871 |
$(Q)$(MAKE) $(build)=$@ |
f1d28fb04
|
872 |
# Store (new) KERNELRELASE string in include/config/kernel.release |
f1d28fb04
|
873 |
include/config/kernel.release: include/config/auto.conf FORCE |
2244cbd8a
|
874 |
$(Q)rm -f $@ |
7263e715c
|
875 |
$(Q)echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" > $@ |
cb58455c4
|
876 |
|
1da177e4c
|
877 |
# Things we need to do before we recursively start building the kernel |
5bb782690
|
878 879 880 881 |
# or the modules are listed in "prepare". # A multi level approach is used. prepareN is processed before prepareN-1. # archprepare is used in arch Makefiles and when processed asm symlink, # version.h and scripts_basic is processed / created. |
1da177e4c
|
882 |
|
5bb782690
|
883 |
# Listed in dependency order |
4f1933620
|
884 |
PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 |
5bb782690
|
885 |
|
86feeaa81
|
886 |
# prepare3 is used to check if we are building in a separate output directory, |
1da177e4c
|
887 888 |
# and if so do: # 1) Check that make has not been executed in the kernel src $(srctree) |
f1d28fb04
|
889 |
prepare3: include/config/kernel.release |
1da177e4c
|
890 |
ifneq ($(KBUILD_SRC),) |
fd54f5028
|
891 |
@$(kecho) ' Using $(srctree) as source for kernel' |
c955ccafc
|
892 |
$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ |
1da177e4c
|
893 894 895 896 |
echo " $(srctree) is not clean, please run 'make mrproper'";\ echo " in the '$(srctree)' directory.";\ /bin/false; \ fi; |
1da177e4c
|
897 |
endif |
86feeaa81
|
898 899 |
# prepare2 creates a makefile if using a separate output directory prepare2: prepare3 outputmakefile |
1da177e4c
|
900 |
|
273b281fa
|
901 |
prepare1: prepare2 include/linux/version.h include/generated/utsrelease.h \ |
f7f16b779
|
902 |
include/config/auto.conf |
7bb9d092d
|
903 |
$(cmd_crmodverdir) |
1da177e4c
|
904 |
|
5bb782690
|
905 906 907 |
archprepare: prepare1 scripts_basic prepare0: archprepare FORCE |
8d36a6236
|
908 |
$(Q)$(MAKE) $(build)=. |
c53aeca05
|
909 |
$(Q)$(MAKE) $(build)=. missing-syscalls |
86feeaa81
|
910 |
|
1da177e4c
|
911 |
# All the preparing.. |
d395efb54
|
912 |
prepare: prepare0 |
1da177e4c
|
913 |
|
1da177e4c
|
914 915 916 917 918 919 920 |
# Generate some files # --------------------------------------------------------------------------- # KERNELRELEASE can change from a few different places, meaning version.h # needs to be updated, so this check is forced on all builds uts_len := 64 |
63104eec2
|
921 922 923 924 925 926 927 |
define filechk_utsrelease.h if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ exit 1; \ fi; \ (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) endef |
1da177e4c
|
928 929 |
define filechk_version.h |
63104eec2
|
930 931 932 |
(echo \#define LINUX_VERSION_CODE $(shell \ expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \ echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) |
1da177e4c
|
933 |
endef |
63104eec2
|
934 |
include/linux/version.h: $(srctree)/Makefile FORCE |
1da177e4c
|
935 |
$(call filechk,version.h) |
273b281fa
|
936 |
include/generated/utsrelease.h: include/config/kernel.release FORCE |
63104eec2
|
937 |
$(call filechk,utsrelease.h) |
179efcb47
|
938 939 940 |
PHONY += headerdep headerdep: $(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl |
1da177e4c
|
941 |
# --------------------------------------------------------------------------- |
4f1933620
|
942 |
PHONY += depend dep |
1da177e4c
|
943 944 945 946 |
depend dep: @echo '*** Warning: make $@ is unnecessary now.' # --------------------------------------------------------------------------- |
88ecf814c
|
947 948 949 950 951 952 953 954 955 956 |
# Firmware install INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware export INSTALL_FW_PATH PHONY += firmware_install firmware_install: FORCE @mkdir -p $(objtree)/firmware $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install # --------------------------------------------------------------------------- |
8d730cfb5
|
957 |
# Kernel headers |
8d730cfb5
|
958 |
|
e6883b187
|
959 960 |
#Default location for installed headers export INSTALL_HDR_PATH = $(objtree)/usr |
6d7162758
|
961 |
|
e6883b187
|
962 |
hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj |
2fb9b1bd9
|
963 964 965 |
# If we do an all arch process set dst to asm-$(hdr-arch) hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) |
e6883b187
|
966 967 968 |
PHONY += __headers __headers: include/linux/version.h scripts_basic FORCE |
398477d4b
|
969 |
$(Q)$(MAKE) $(build)=scripts scripts/unifdef |
e6883b187
|
970 971 |
PHONY += headers_install_all |
2fb9b1bd9
|
972 973 |
headers_install_all: $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install |
6d7162758
|
974 |
|
8d730cfb5
|
975 |
PHONY += headers_install |
e6883b187
|
976 |
headers_install: __headers |
c95fa08a3
|
977 |
$(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild),, \ |
2fb9b1bd9
|
978 |
$(error Headers not exportable for the $(SRCARCH) architecture)) |
88181ec30
|
979 |
$(Q)$(MAKE) $(hdr-inst)=include |
c95fa08a3
|
980 |
$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst) |
8d730cfb5
|
981 |
|
1f85712e6
|
982 983 |
PHONY += headers_check_all headers_check_all: headers_install_all |
2fb9b1bd9
|
984 |
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check |
1f85712e6
|
985 |
|
684753599
|
986 987 |
PHONY += headers_check headers_check: headers_install |
88181ec30
|
988 |
$(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1 |
c95fa08a3
|
989 |
$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst) HDRCHECK=1 |
684753599
|
990 |
|
8d730cfb5
|
991 |
# --------------------------------------------------------------------------- |
1da177e4c
|
992 993 994 |
# Modules ifdef CONFIG_MODULES |
070b98bfd
|
995 |
# By default, build modules as well |
1da177e4c
|
996 |
|
73d1393eb
|
997 |
all: modules |
1da177e4c
|
998 999 |
# Build modules |
551559e13
|
1000 1001 1002 1003 |
# # A module can be listed more than once in obj-m resulting in # duplicate lines in modules.order files. Those are removed # using awk while concatenating to the final file. |
1da177e4c
|
1004 |
|
4f1933620
|
1005 |
PHONY += modules |
2da30e703
|
1006 |
modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin |
551559e13
|
1007 |
$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order |
fd54f5028
|
1008 |
@$(kecho) ' Building modules, stage 2.'; |
b805aa0e7
|
1009 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
44463f7dd
|
1010 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild |
1da177e4c
|
1011 |
|
a6c366324
|
1012 1013 |
modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin |
73d1393eb
|
1014 |
%/modules.builtin: include/config/auto.conf |
a6c366324
|
1015 |
$(Q)$(MAKE) $(modbuiltin)=$* |
1da177e4c
|
1016 1017 |
# Target to prepare building external modules |
4f1933620
|
1018 |
PHONY += modules_prepare |
5bb782690
|
1019 |
modules_prepare: prepare scripts |
1da177e4c
|
1020 1021 |
# Target to install modules |
4f1933620
|
1022 |
PHONY += modules_install |
1da177e4c
|
1023 |
modules_install: _modinst_ _modinst_post |
4f1933620
|
1024 |
PHONY += _modinst_ |
2da30e703
|
1025 |
_modinst_: |
ce454d4d7
|
1026 |
@if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ |
1da177e4c
|
1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 |
echo "Warning: you may need to install module-init-tools"; \ echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ sleep 1; \ fi @rm -rf $(MODLIB)/kernel @rm -f $(MODLIB)/source @mkdir -p $(MODLIB)/kernel @ln -s $(srctree) $(MODLIB)/source @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ rm -f $(MODLIB)/build ; \ ln -s $(objtree) $(MODLIB)/build ; \ fi |
551559e13
|
1039 |
@cp -f $(objtree)/modules.order $(MODLIB)/ |
bc081dd6e
|
1040 |
@cp -f $(objtree)/modules.builtin $(MODLIB)/ |
b805aa0e7
|
1041 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1da177e4c
|
1042 |
|
50a8ec31c
|
1043 |
# This depmod is only for convenience to give the initial |
1da177e4c
|
1044 1045 |
# boot a modules.dep even before / is mounted read-write. However the # boot script depmod is the master version. |
4f1933620
|
1046 |
PHONY += _modinst_post |
1da177e4c
|
1047 |
_modinst_post: _modinst_ |
88ecf814c
|
1048 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst |
50a8ec31c
|
1049 |
$(call cmd,depmod) |
1da177e4c
|
1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 |
else # CONFIG_MODULES # Modules not configured # --------------------------------------------------------------------------- modules modules_install: FORCE @echo @echo "The present kernel configuration has modules disabled." @echo "Type 'make config' and enable loadable module support." @echo "Then build a kernel with module support enabled." @echo @exit 1 endif # CONFIG_MODULES |
1da177e4c
|
1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 |
### # Cleaning is done on three levels. # make clean Delete most generated files # Leave enough to build external modules # make mrproper Delete the current configuration, and all generated files # make distclean Remove editor backup files, patch leftover files and the like # Directories & files removed with 'make clean' CLEAN_DIRS += $(MODVERDIR) CLEAN_FILES += vmlinux System.map \ .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map # Directories & files removed with 'make mrproper' |
96f13045b
|
1078 |
MRPROPER_DIRS += include/config usr/include include/generated |
f7f16b779
|
1079 |
MRPROPER_FILES += .config .config.old .version .old_version \ |
264a26838
|
1080 |
include/linux/version.h \ |
8723eaeff
|
1081 |
Module.symvers tags TAGS cscope* |
1da177e4c
|
1082 1083 1084 1085 1086 |
# clean - Delete most, but leave enough to build external modules # clean: rm-dirs := $(CLEAN_DIRS) clean: rm-files := $(CLEAN_FILES) |
c47f214ac
|
1087 |
clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation) |
1da177e4c
|
1088 |
|
4f1933620
|
1089 |
PHONY += $(clean-dirs) clean archclean |
1da177e4c
|
1090 1091 |
$(clean-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
88d7be031
|
1092 |
clean: archclean |
1da177e4c
|
1093 1094 1095 1096 1097 1098 |
# mrproper - Delete all generated files, including .config # mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) |
4f1933620
|
1099 |
PHONY += $(mrproper-dirs) mrproper archmrproper |
1da177e4c
|
1100 1101 1102 1103 1104 1105 1106 1107 1108 |
$(mrproper-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) mrproper: clean archmrproper $(mrproper-dirs) $(call cmd,rmdirs) $(call cmd,rmfiles) # distclean # |
4f1933620
|
1109 |
PHONY += distclean |
1da177e4c
|
1110 1111 1112 |
distclean: mrproper @find $(srctree) $(RCS_FIND_IGNORE) \ |
070b98bfd
|
1113 |
\( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
1da177e4c
|
1114 |
-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ |
070b98bfd
|
1115 |
-o -name '.*.rej' -o -size 0 \ |
1da177e4c
|
1116 1117 1118 1119 1120 1121 1122 1123 |
-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ -type f -print | xargs rm -f # Packaging of the kernel to various formats # --------------------------------------------------------------------------- # rpm target kept for backward compatibility package-dir := $(srctree)/scripts/package |
bafb67470
|
1124 1125 |
%src-pkg: FORCE $(Q)$(MAKE) $(build)=$(package-dir) $@ |
031ecc6de
|
1126 |
%pkg: include/config/kernel.release FORCE |
6c2133e11
|
1127 |
$(Q)$(MAKE) $(build)=$(package-dir) $@ |
031ecc6de
|
1128 |
rpm: include/config/kernel.release FORCE |
6c2133e11
|
1129 |
$(Q)$(MAKE) $(build)=$(package-dir) $@ |
1da177e4c
|
1130 1131 1132 1133 |
# Brief documentation of the typical targets used # --------------------------------------------------------------------------- |
5dffbe811
|
1134 |
boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) |
1da177e4c
|
1135 |
boards := $(notdir $(boards)) |
5dffbe811
|
1136 1137 |
board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) board-dirs := $(sort $(notdir $(board-dirs:/=))) |
1da177e4c
|
1138 1139 1140 |
help: @echo 'Cleaning targets:' |
5ea084ef9
|
1141 |
@echo ' clean - Remove most generated files but keep the config and' |
5cc8d246d
|
1142 |
@echo ' enough build support to build external modules' |
5ea084ef9
|
1143 |
@echo ' mrproper - Remove all generated files + config + various backup files' |
5cc8d246d
|
1144 |
@echo ' distclean - mrproper + remove editor backup and patch files' |
1da177e4c
|
1145 1146 1147 1148 1149 1150 1151 1152 |
@echo '' @echo 'Configuration targets:' @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help @echo '' @echo 'Other generic targets:' @echo ' all - Build all targets marked with [*]' @echo '* vmlinux - Build the bare kernel' @echo '* modules - Build all modules' |
9cc5d74c8
|
1153 |
@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
88ecf814c
|
1154 1155 |
@echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' |
1da177e4c
|
1156 |
@echo ' dir/ - Build all files in dir and below' |
627189797
|
1157 1158 1159 |
@echo ' dir/file.[oisS] - Build specified target only' @echo ' dir/file.lst - Build specified mixed source/assembly target only' @echo ' (requires a recent binutils and recent build (System.map))' |
155ad605b
|
1160 |
@echo ' dir/file.ko - Build module including final link' |
c4d5ee67c
|
1161 |
@echo ' modules_prepare - Set up for building external modules' |
1da177e4c
|
1162 1163 |
@echo ' tags/TAGS - Generate tags file for editors' @echo ' cscope - Generate cscope index' |
6d1288425
|
1164 |
@echo ' kernelrelease - Output the release version string' |
cb58455c4
|
1165 |
@echo ' kernelversion - Output the version stored in Makefile' |
2fb9b1bd9
|
1166 |
@echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ |
59df3230f
|
1167 |
echo ' (default: $(INSTALL_HDR_PATH))'; \ |
2fb9b1bd9
|
1168 |
echo '' |
1da177e4c
|
1169 |
@echo 'Static analysers' |
1da177e4c
|
1170 1171 |
@echo ' checkstack - Generate a list of stack hogs' @echo ' namespacecheck - Name space analysis on compiled kernel' |
aa025e7d5
|
1172 |
@echo ' versioncheck - Sanity check on version.h usage' |
ec2d987f9
|
1173 |
@echo ' includecheck - Check for duplicate included header files' |
295ac0518
|
1174 |
@echo ' export_report - List the usages of all exported symbols' |
179efcb47
|
1175 |
@echo ' headers_check - Sanity check on exported headers' |
74425eee7
|
1176 1177 1178 |
@echo ' headerdep - Detect inclusion cycles in headers' @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help @echo '' |
1da177e4c
|
1179 |
@echo 'Kernel packaging:' |
6c2133e11
|
1180 |
@$(MAKE) $(build)=$(package-dir) help |
1da177e4c
|
1181 1182 1183 1184 |
@echo '' @echo 'Documentation targets:' @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp @echo '' |
01dee1881
|
1185 |
@echo 'Architecture specific targets ($(SRCARCH)):' |
1da177e4c
|
1186 |
@$(if $(archhelp),$(archhelp),\ |
01dee1881
|
1187 |
echo ' No architecture specific help defined for $(SRCARCH)') |
1da177e4c
|
1188 1189 1190 1191 1192 1193 |
@echo '' @$(if $(boards), \ $(foreach b, $(boards), \ printf " %-24s - Build for %s\ " $(b) $(subst _defconfig,,$(b));) \ echo '') |
5dffbe811
|
1194 1195 1196 1197 1198 1199 1200 |
@$(if $(board-dirs), \ $(foreach b, $(board-dirs), \ printf " %-16s - Show %s-specific targets\ " help-$(b) $(b);) \ printf " %-16s - Show all of the above\ " help-boards; \ echo '') |
1da177e4c
|
1201 1202 |
@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' |
45d506bd6
|
1203 |
@echo ' make V=2 [targets] 2 => give reason for rebuild of target' |
1da177e4c
|
1204 |
@echo ' make O=dir [targets] Locate all output files in "dir", including .config' |
701842e3b
|
1205 1206 |
@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' @echo ' make C=2 [targets] Force check of all c source with $$CHECK' |
1da177e4c
|
1207 1208 1209 |
@echo '' @echo 'Execute "make" or "make all" to build all targets marked with [*] ' @echo 'For further info see the ./README file' |
5dffbe811
|
1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 |
help-board-dirs := $(addprefix help-,$(board-dirs)) help-boards: $(help-board-dirs) boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) $(help-board-dirs): help-%: @echo 'Architecture specific targets ($(SRCARCH) $*):' @$(if $(boards-per-dir), \ $(foreach b, $(boards-per-dir), \ printf " %-24s - Build for %s\ " $*/$(b) $(subst _defconfig,,$(b));) \ echo '') |
1da177e4c
|
1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 |
# Documentation targets # --------------------------------------------------------------------------- %docs: scripts_basic FORCE $(Q)$(MAKE) $(build)=Documentation/DocBook $@ else # KBUILD_EXTMOD ### # External module support. # When building external modules the kernel used as basis is considered # read-only, and no consistency checks are made and the make # system is not used on the basis kernel. If updates are required # in the basis kernel ordinary make commands (without M=...) must # be used. # # The following are the only valid targets when building external # modules. # make M=dir clean Delete all automatically generated files # make M=dir modules Make all modules in specified dir # make M=dir Same as 'make M=dir modules' # make M=dir modules_install |
070b98bfd
|
1244 |
# Install the modules built in the module directory |
1da177e4c
|
1245 1246 1247 1248 |
# Assumes install directory is already created # We are always building modules KBUILD_MODULES := 1 |
4f1933620
|
1249 |
PHONY += crmodverdir |
1da177e4c
|
1250 |
crmodverdir: |
7bb9d092d
|
1251 |
$(cmd_crmodverdir) |
1da177e4c
|
1252 |
|
4f1933620
|
1253 |
PHONY += $(objtree)/Module.symvers |
1da177e4c
|
1254 1255 1256 1257 1258 1259 1260 1261 |
$(objtree)/Module.symvers: @test -e $(objtree)/Module.symvers || ( \ echo; \ echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ echo " is missing; modules will have no dependencies and modversions."; \ echo ) module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) |
4f1933620
|
1262 |
PHONY += $(module-dirs) modules |
1da177e4c
|
1263 1264 1265 1266 |
$(module-dirs): crmodverdir $(objtree)/Module.symvers $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) modules: $(module-dirs) |
fd54f5028
|
1267 |
@$(kecho) ' Building modules, stage 2.'; |
b805aa0e7
|
1268 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1da177e4c
|
1269 |
|
4f1933620
|
1270 |
PHONY += modules_install |
a67dc21a3
|
1271 |
modules_install: _emodinst_ _emodinst_post |
e63046630
|
1272 |
|
4f1933620
|
1273 1274 |
install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) PHONY += _emodinst_ |
a67dc21a3
|
1275 |
_emodinst_: |
a67dc21a3
|
1276 |
$(Q)mkdir -p $(MODLIB)/$(install-dir) |
b805aa0e7
|
1277 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1da177e4c
|
1278 |
|
4f1933620
|
1279 |
PHONY += _emodinst_post |
a67dc21a3
|
1280 1281 |
_emodinst_post: _emodinst_ $(call cmd,depmod) |
1da177e4c
|
1282 |
clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) |
4f1933620
|
1283 |
PHONY += $(clean-dirs) clean |
1da177e4c
|
1284 1285 1286 1287 |
$(clean-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) clean: rm-dirs := $(MODVERDIR) |
88d7be031
|
1288 |
clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers |
1da177e4c
|
1289 1290 1291 1292 1293 1294 1295 1296 1297 |
help: @echo ' Building external modules.' @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' @echo '' @echo ' modules - default target, build the module(s)' @echo ' modules_install - install the module' @echo ' clean - remove generated files in module directory only' @echo '' |
06300b21f
|
1298 1299 |
# Dummies... |
4f1933620
|
1300 |
PHONY += prepare scripts |
06300b21f
|
1301 1302 |
prepare: ; scripts: ; |
1da177e4c
|
1303 |
endif # KBUILD_EXTMOD |
88d7be031
|
1304 1305 1306 1307 1308 1309 1310 1311 1312 |
clean: $(clean-dirs) $(call cmd,rmdirs) $(call cmd,rmfiles) @find $(or $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ -o -name '*.symtypes' -o -name 'modules.order' \ -o -name modules.builtin -o -name '.tmp_*.o.*' \ -o -name '*.gcno' \) -type f -print | xargs rm -f |
1da177e4c
|
1313 1314 |
# Generate tags for editors # --------------------------------------------------------------------------- |
a680eedc6
|
1315 1316 |
quiet_cmd_tags = GEN $@ cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ |
1da177e4c
|
1317 |
|
a680eedc6
|
1318 |
tags TAGS cscope: FORCE |
1da177e4c
|
1319 |
$(call cmd,tags) |
1da177e4c
|
1320 1321 |
# Scripts to check various things for consistency # --------------------------------------------------------------------------- |
1da177e4c
|
1322 1323 1324 |
includecheck: find * $(RCS_FIND_IGNORE) \ -name '*.[hcS]' -type f -print | sort \ |
800074345
|
1325 |
| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl |
1da177e4c
|
1326 1327 1328 1329 |
versioncheck: find * $(RCS_FIND_IGNORE) \ -name '*.[hcS]' -type f -print | sort \ |
800074345
|
1330 |
| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl |
1da177e4c
|
1331 |
|
74425eee7
|
1332 1333 |
coccicheck: $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ |
1da177e4c
|
1334 1335 |
namespacecheck: $(PERL) $(srctree)/scripts/namespace.pl |
295ac0518
|
1336 1337 |
export_report: $(PERL) $(srctree)/scripts/export_report.pl |
1da177e4c
|
1338 1339 |
endif #ifeq ($(config-targets),1) endif #ifeq ($(mixed-targets),1) |
c30a02e02
|
1340 |
PHONY += checkstack kernelrelease kernelversion |
e3ccf6e36
|
1341 |
|
011e3a9ad
|
1342 1343 1344 1345 1346 1347 1348 1349 1350 |
# UML needs a little special treatment here. It wants to use the host # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone # else wants $(ARCH), including people doing cross-builds, which means # that $(SUBARCH) doesn't work here. ifeq ($(ARCH), um) CHECKSTACK_ARCH := $(SUBARCH) else CHECKSTACK_ARCH := $(ARCH) endif |
1da177e4c
|
1351 1352 |
checkstack: $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ |
011e3a9ad
|
1353 |
$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) |
1da177e4c
|
1354 |
|
7b8ea53d7
|
1355 1356 |
kernelrelease: @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" |
01ab17887
|
1357 |
|
cb58455c4
|
1358 |
kernelversion: |
2244cbd8a
|
1359 |
@echo $(KERNELVERSION) |
1da177e4c
|
1360 |
|
06300b21f
|
1361 1362 |
# Single targets # --------------------------------------------------------------------------- |
bc2546a67
|
1363 |
# Single targets are compatible with: |
e1b8513d2
|
1364 |
# - build with mixed source and output |
bc2546a67
|
1365 1366 1367 1368 1369 1370 1371 |
# - build with separate output dir 'make O=...' # - external modules # # target-dir => where to store outputfile # build-dir => directory in kernel source tree to use ifeq ($(KBUILD_EXTMOD),) |
aa360879e
|
1372 |
build-dir = $(patsubst %/,%,$(dir $@)) |
bc2546a67
|
1373 1374 1375 1376 1377 1378 |
target-dir = $(dir $@) else zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) endif |
f6ecebd65
|
1379 |
%.s: %.c prepare scripts FORCE |
bc2546a67
|
1380 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1381 |
%.i: %.c prepare scripts FORCE |
bc2546a67
|
1382 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1383 |
%.o: %.c prepare scripts FORCE |
bc2546a67
|
1384 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1385 |
%.lst: %.c prepare scripts FORCE |
bc2546a67
|
1386 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1387 |
%.s: %.S prepare scripts FORCE |
bc2546a67
|
1388 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1389 |
%.o: %.S prepare scripts FORCE |
bc2546a67
|
1390 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
15fde6751
|
1391 1392 |
%.symtypes: %.c prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
06300b21f
|
1393 |
|
bc2546a67
|
1394 |
# Modules |
31110ebbe
|
1395 1396 1397 1398 1399 |
/: prepare scripts FORCE $(cmd_crmodverdir) $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ $(build)=$(build-dir) %/: prepare scripts FORCE |
7bb9d092d
|
1400 |
$(cmd_crmodverdir) |
06300b21f
|
1401 |
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
bc2546a67
|
1402 1403 |
$(build)=$(build-dir) %.ko: prepare scripts FORCE |
7bb9d092d
|
1404 |
$(cmd_crmodverdir) |
06300b21f
|
1405 |
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
bc2546a67
|
1406 |
$(build)=$(build-dir) $(@:.ko=.o) |
b805aa0e7
|
1407 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
06300b21f
|
1408 |
|
1da177e4c
|
1409 1410 1411 1412 1413 1414 1415 1416 |
# FIXME Should go into a make.lib or something # =========================================================================== quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) cmd_rmdirs = rm -rf $(rm-dirs) quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) cmd_rmfiles = rm -f $(rm-files) |
bc3c26fe6
|
1417 |
# Run depmod only if we have System.map and depmod is executable |
50a8ec31c
|
1418 1419 |
quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) cmd_depmod = \ |
d8d2e78a0
|
1420 |
if [ -r System.map -a -x $(DEPMOD) ]; then \ |
50a8ec31c
|
1421 |
$(DEPMOD) -ae -F System.map \ |
75bccd881
|
1422 |
$(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) ) \ |
50a8ec31c
|
1423 1424 |
$(KERNELRELEASE); \ fi |
7bb9d092d
|
1425 |
# Create temporary dir for module support files |
ab19f8794
|
1426 1427 1428 |
# clean it up only when building all modules cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) |
1da177e4c
|
1429 |
|
222d394d3
|
1430 |
a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ |
80c00ba94
|
1431 |
$(KBUILD_AFLAGS_KERNEL) \ |
d8672b40d
|
1432 |
$(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \ |
5e8d780d7
|
1433 |
$(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) |
1da177e4c
|
1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 |
quiet_cmd_as_o_S = AS $@ cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< # read all saved command lines targets := $(wildcard $(sort $(targets))) cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) ifneq ($(cmd_files),) $(cmd_files): ; # Do not try to update included dependency files include $(cmd_files) endif |
1da177e4c
|
1447 1448 1449 1450 |
# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir # Usage: # $(Q)$(MAKE) $(clean)=dir clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj |
1da177e4c
|
1451 |
endif # skip-makefile |
4f1933620
|
1452 |
PHONY += FORCE |
1da177e4c
|
1453 |
FORCE: |
4f1933620
|
1454 |
|
4f1933620
|
1455 |
# Declare the contents of the .PHONY variable as phony. We keep that |
fe8d0a410
|
1456 |
# information in a variable so we can use it in if_changed and friends. |
4f1933620
|
1457 |
.PHONY: $(PHONY) |