projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | VERSION = 2 |
| 2 | PATCHLEVEL = 6 | |
| 2664b250 | 3 | SUBLEVEL = 16 |
| bd71c2b1 | 4 | EXTRAVERSION =-rc4 |
| df7addbb | 5 | NAME=Sliding Snow Leopard |
| 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 | ||
| 13 | # Do not print "Entering directory ..." | |
| 14 | MAKEFLAGS += --no-print-directory | |
| 15 | ||
| 16 | # We are using a recursive build, so we need to do a little thinking | |
| 17 | # to get the ordering right. | |
| 18 | # | |
| 19 | # Most importantly: sub-Makefiles should only ever modify files in | |
| 20 | # their own directory. If in some directory we have a dependency on | |
| 21 | # a file in another dir (which doesn't happen often, but it's often | |
| 22 | # unavoidable when linking the built-in.o targets which finally | |
| 23 | # turn into vmlinux), we will call a sub make in that other dir, and | |
| 24 | # after that we are sure that everything which is in that other dir | |
| 25 | # is now up to date. | |
| 26 | # | |
| 27 | # The only cases where we need to modify files which have global | |
| 28 | # effects are thus separated out and done before the recursive | |
| 29 | # descending is started. They are now explicitly listed as the | |
| 30 | # prepare rule. | |
| 31 | ||
| 32 | # To put more focus on warnings, be less verbose as default | |
| 33 | # Use 'make V=1' to see the full commands | |
| 34 | ||
| 35 | ifdef V | |
| 36 | ifeq ("$(origin V)", "command line") | |
| 37 | KBUILD_VERBOSE = $(V) | |
| 38 | endif | |
| 39 | endif | |
| 40 | ifndef KBUILD_VERBOSE | |
| 41 | KBUILD_VERBOSE = 0 | |
| 42 | endif | |
| 43 | ||
| 44 | # Call sparse as part of compilation of C files | |
| 45 | # Use 'make C=1' to enable sparse checking | |
| 46 | ||
| 47 | ifdef C | |
| 48 | ifeq ("$(origin C)", "command line") | |
| 49 | KBUILD_CHECKSRC = $(C) | |
| 50 | endif | |
| 51 | endif | |
| 52 | ifndef KBUILD_CHECKSRC | |
| 53 | KBUILD_CHECKSRC = 0 | |
| 54 | endif | |
| 55 | ||
| 56 | # Use make M=dir to specify directory of external module to build | |
| 57 | # Old syntax make ... SUBDIRS=$PWD is still supported | |
| 58 | # Setting the environment variable KBUILD_EXTMOD take precedence | |
| 59 | ifdef SUBDIRS | |
| 60 | KBUILD_EXTMOD ?= $(SUBDIRS) | |
| 61 | endif | |
| 62 | ifdef M | |
| 63 | ifeq ("$(origin M)", "command line") | |
| 64 | KBUILD_EXTMOD := $(M) | |
| 65 | endif | |
| 66 | endif | |
| 67 | ||
| 68 | ||
| 69 | # kbuild supports saving output files in a separate directory. | |
| 70 | # To locate output files in a separate directory two syntaxes are supported. | |
| 71 | # In both cases the working directory must be the root of the kernel src. | |
| 72 | # 1) O= | |
| 73 | # Use "make O=dir/to/store/output/files/" | |
| 74 | # | |
| 75 | # 2) Set KBUILD_OUTPUT | |
| 76 | # Set the environment variable KBUILD_OUTPUT to point to the directory | |
| 77 | # where the output files shall be placed. | |
| 78 | # export KBUILD_OUTPUT=dir/to/store/output/files/ | |
| 79 | # make | |
| 80 | # | |
| 81 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment | |
| 82 | # variable. | |
| 83 | ||
| 84 | ||
| 85 | # KBUILD_SRC is set on invocation of make in OBJ directory | |
| 86 | # KBUILD_SRC is not intended to be used by the regular user (for now) | |
| 87 | ifeq ($(KBUILD_SRC),) | |
| 88 | ||
| 89 | # OK, Make called in directory where kernel src resides | |
| 90 | # Do we want to locate output files in a separate directory? | |
| 91 | ifdef O | |
| 92 | ifeq ("$(origin O)", "command line") | |
| 93 | KBUILD_OUTPUT := $(O) | |
| 94 | endif | |
| 95 | endif | |
| 96 | ||
| 97 | # That's our default target when none is given on the command line | |
| 98 | .PHONY: _all | |
| 99 | _all: | |
| 100 | ||
| 101 | ifneq ($(KBUILD_OUTPUT),) | |
| 102 | # Invoke a second make in the output directory, passing relevant variables | |
| 103 | # check that the output directory actually exists | |
| 104 | saved-output := $(KBUILD_OUTPUT) | |
| 105 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) | |
| 106 | $(if $(KBUILD_OUTPUT),, \ | |
| 107 | $(error output directory "$(saved-output)" does not exist)) | |
| 108 | ||
| 36cbbe5e | 109 | .PHONY: $(MAKECMDGOALS) |
| 1da177e4 | 110 | |
| 36cbbe5e | 111 | $(filter-out _all,$(MAKECMDGOALS)) _all: |
| 23a45e2c SR |
112 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ |
| 113 | KBUILD_SRC=$(CURDIR) \ | |
| 36cbbe5e | 114 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile $@ |
| 1da177e4 LT |
115 | |
| 116 | # Leave processing to above invocation of make | |
| 117 | skip-makefile := 1 | |
| 118 | endif # ifneq ($(KBUILD_OUTPUT),) | |
| 119 | endif # ifeq ($(KBUILD_SRC),) | |
| 120 | ||
| 121 | # We process the rest of the Makefile if this is the final invocation of make | |
| 122 | ifeq ($(skip-makefile),) | |
| 123 | ||
| 124 | # If building an external module we do not care about the all: rule | |
| 125 | # but instead _all depend on modules | |
| 126 | .PHONY: all | |
| 127 | ifeq ($(KBUILD_EXTMOD),) | |
| 128 | _all: all | |
| 129 | else | |
| 130 | _all: modules | |
| 131 | endif | |
| 132 | ||
| 133 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) | |
| 134 | TOPDIR := $(srctree) | |
| 135 | # FIXME - TOPDIR is obsolete, use srctree/objtree | |
| 136 | objtree := $(CURDIR) | |
| 137 | src := $(srctree) | |
| 138 | obj := $(objtree) | |
| 139 | ||
| 06300b21 | 140 | VPATH := $(srctree):$(KBUILD_EXTMOD) |
| 1da177e4 LT |
141 | |
| 142 | export srctree objtree VPATH TOPDIR | |
| 143 | ||
| 1da177e4 LT |
144 | |
| 145 | # SUBARCH tells the usermode build what the underlying arch is. That is set | |
| 146 | # first, and if a usermode build is happening, the "ARCH=um" on the command | |
| 147 | # line overrides the setting of ARCH below. If a native build is happening, | |
| 148 | # then ARCH is assigned, getting whatever value it gets normally, and | |
| 149 | # SUBARCH is subsequently ignored. | |
| 150 | ||
| 151 | SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ | |
| 152 | -e s/arm.*/arm/ -e s/sa110/arm/ \ | |
| 39990b5e | 153 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ |
| 8999257c | 154 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ ) |
| 1da177e4 LT |
155 | |
| 156 | # Cross compiling and selecting different set of gcc/bin-utils | |
| 157 | # --------------------------------------------------------------------------- | |
| 158 | # | |
| 159 | # When performing cross compilation for other architectures ARCH shall be set | |
| 160 | # to the target architecture. (See arch/* for the possibilities). | |
| 161 | # ARCH can be set during invocation of make: | |
| 162 | # make ARCH=ia64 | |
| 163 | # Another way is to have ARCH set in the environment. | |
| 164 | # The default ARCH is the host where make is executed. | |
| 165 | ||
| 166 | # CROSS_COMPILE specify the prefix used for all executables used | |
| 167 | # during compilation. Only gcc and related bin-utils executables | |
| 168 | # are prefixed with $(CROSS_COMPILE). | |
| 169 | # CROSS_COMPILE can be set on the command line | |
| 170 | # make CROSS_COMPILE=ia64-linux- | |
| 171 | # Alternatively CROSS_COMPILE can be set in the environment. | |
| 172 | # Default value for CROSS_COMPILE is not to prefix executables | |
| 173 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile | |
| 174 | ||
| 175 | ARCH ?= $(SUBARCH) | |
| 176 | CROSS_COMPILE ?= | |
| 177 | ||
| 178 | # Architecture as present in compile.h | |
| 179 | UTS_MACHINE := $(ARCH) | |
| 180 | ||
| 181 | # SHELL used by kbuild | |
| 182 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ | |
| 183 | else if [ -x /bin/bash ]; then echo /bin/bash; \ | |
| 184 | else echo sh; fi ; fi) | |
| 185 | ||
| 186 | HOSTCC = gcc | |
| 187 | HOSTCXX = g++ | |
| 188 | HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer | |
| 189 | HOSTCXXFLAGS = -O2 | |
| 190 | ||
| 191 | # Decide whether to build built-in, modular, or both. | |
| 192 | # Normally, just do built-in. | |
| 193 | ||
| 194 | KBUILD_MODULES := | |
| 195 | KBUILD_BUILTIN := 1 | |
| 196 | ||
| 197 | # If we have only "make modules", don't compile built-in objects. | |
| 198 | # When we're building modules with modversions, we need to consider | |
| 199 | # the built-in objects during the descend as well, in order to | |
| 200 | # make sure the checksums are uptodate before we record them. | |
| 201 | ||
| 202 | ifeq ($(MAKECMDGOALS),modules) | |
| 203 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) | |
| 204 | endif | |
| 205 | ||
| 206 | # If we have "make <whatever> modules", compile modules | |
| 207 | # in addition to whatever we do anyway. | |
| 208 | # Just "make" or "make all" shall build modules as well | |
| 209 | ||
| 210 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) | |
| 211 | KBUILD_MODULES := 1 | |
| 212 | endif | |
| 213 | ||
| 214 | ifeq ($(MAKECMDGOALS),) | |
| 215 | KBUILD_MODULES := 1 | |
| 216 | endif | |
| 217 | ||
| e579d351 | 218 | export KBUILD_MODULES KBUILD_BUILTIN |
| 1da177e4 LT |
219 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD |
| 220 | ||
| 221 | # Beautify output | |
| 222 | # --------------------------------------------------------------------------- | |
| 223 | # | |
| 224 | # Normally, we echo the whole command before executing it. By making | |
| 225 | # that echo $($(quiet)$(cmd)), we now have the possibility to set | |
| 226 | # $(quiet) to choose other forms of output instead, e.g. | |
| 227 | # | |
| 228 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ | |
| 229 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< | |
| 230 | # | |
| 231 | # If $(quiet) is empty, the whole command will be printed. | |
| 232 | # If it is set to "quiet_", only the short version will be printed. | |
| 233 | # If it is set to "silent_", nothing wil be printed at all, since | |
| 234 | # the variable $(silent_cmd_cc_o_c) doesn't exist. | |
| 235 | # | |
| a58a414f | 236 | # A simple variant is to prefix commands with $(Q) - that's useful |
| 1da177e4 LT |
237 | # for commands that shall be hidden in non-verbose mode. |
| 238 | # | |
| 239 | # $(Q)ln $@ :< | |
| 240 | # | |
| 241 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. | |
| 242 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. | |
| 243 | ||
| 244 | ifeq ($(KBUILD_VERBOSE),1) | |
| 245 | quiet = | |
| 246 | Q = | |
| 247 | else | |
| 248 | quiet=quiet_ | |
| 249 | Q = @ | |
| 250 | endif | |
| 251 | ||
| 252 | # If the user is running make -s (silent mode), suppress echoing of | |
| 253 | # commands | |
| 254 | ||
| 255 | ifneq ($(findstring s,$(MAKEFLAGS)),) | |
| 256 | quiet=silent_ | |
| 257 | endif | |
| 258 | ||
| 259 | export quiet Q KBUILD_VERBOSE | |
| 260 | ||
| 1da177e4 LT |
261 | |
| 262 | # Look for make include files relative to root of kernel src | |
| 263 | MAKEFLAGS += --include-dir=$(srctree) | |
| 264 | ||
| 8ec4b4ff | 265 | # We need some generic definitions |
| 2a691470 | 266 | include $(srctree)/scripts/Kbuild.include |
| 8ec4b4ff | 267 | |
| 1da177e4 LT |
268 | # For maximum performance (+ possibly random breakage, uncomment |
| 269 | # the following) | |
| 270 | ||
| 271 | #MAKEFLAGS += -rR | |
| 272 | ||
| 273 | # Make variables (CC, etc...) | |
| 274 | ||
| 275 | AS = $(CROSS_COMPILE)as | |
| 276 | LD = $(CROSS_COMPILE)ld | |
| 277 | CC = $(CROSS_COMPILE)gcc | |
| 278 | CPP = $(CC) -E | |
| 279 | AR = $(CROSS_COMPILE)ar | |
| 280 | NM = $(CROSS_COMPILE)nm | |
| 281 | STRIP = $(CROSS_COMPILE)strip | |
| 282 | OBJCOPY = $(CROSS_COMPILE)objcopy | |
| 283 | OBJDUMP = $(CROSS_COMPILE)objdump | |
| 284 | AWK = awk | |
| 285 | GENKSYMS = scripts/genksyms/genksyms | |
| 286 | DEPMOD = /sbin/depmod | |
| 287 | KALLSYMS = scripts/kallsyms | |
| 288 | PERL = perl | |
| 289 | CHECK = sparse | |
| 290 | ||
| af4ca457 | 291 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise $(CF) |
| 1da177e4 LT |
292 | MODFLAGS = -DMODULE |
| 293 | CFLAGS_MODULE = $(MODFLAGS) | |
| 294 | AFLAGS_MODULE = $(MODFLAGS) | |
| 295 | LDFLAGS_MODULE = -r | |
| 296 | CFLAGS_KERNEL = | |
| 297 | AFLAGS_KERNEL = | |
| 298 | ||
| 299 | ||
| 300 | # Use LINUXINCLUDE when you must reference the include/ directory. | |
| 301 | # Needed to be compatible with the O= option | |
| 302 | LINUXINCLUDE := -Iinclude \ | |
| 2dd34b48 | 303 | $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \ |
| e623a3b8 | 304 | -include include/linux/autoconf.h |
| 1da177e4 LT |
305 | |
| 306 | CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE) | |
| 307 | ||
| 3c521e06 | 308 | CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ |
| 1da177e4 LT |
309 | -fno-strict-aliasing -fno-common \ |
| 310 | -ffreestanding | |
| 311 | AFLAGS := -D__ASSEMBLY__ | |
| 312 | ||
| cb58455c SR |
313 | # Read KERNELRELEASE from .kernelrelease (if it exists) |
| 314 | KERNELRELEASE = $(shell cat .kernelrelease 2> /dev/null) | |
| 2244cbd8 | 315 | KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) |
| cb58455c | 316 | |
| 2244cbd8 | 317 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION \ |
| 1da177e4 LT |
318 | ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \ |
| 319 | CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE \ | |
| 320 | HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS | |
| 321 | ||
| 322 | export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS | |
| 323 | export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE | |
| 324 | export AFLAGS AFLAGS_KERNEL AFLAGS_MODULE | |
| 325 | ||
| 326 | # When compiling out-of-tree modules, put MODVERDIR in the module | |
| 327 | # tree rather than in the kernel tree. The kernel tree might | |
| 328 | # even be read-only. | |
| 329 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions | |
| 330 | ||
| 1da177e4 LT |
331 | # Files to ignore in find ... statements |
| 332 | ||
| 406119f4 TM |
333 | 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 |
| 334 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git | |
| 1da177e4 LT |
335 | |
| 336 | # =========================================================================== | |
| 337 | # Rules shared between *config targets and build targets | |
| 338 | ||
| 339 | # Basic helpers built in scripts/ | |
| 340 | .PHONY: scripts_basic | |
| 341 | scripts_basic: | |
| 342 | $(Q)$(MAKE) $(build)=scripts/basic | |
| 343 | ||
| cd05e6bd JB |
344 | # To avoid any implicit rule to kick in, define an empty command. |
| 345 | scripts/basic/%: scripts_basic ; | |
| 346 | ||
| 1da177e4 LT |
347 | .PHONY: outputmakefile |
| 348 | # outputmakefile generate a Makefile to be placed in output directory, if | |
| 349 | # using a seperate output directory. This allows convinient use | |
| 350 | # of make in output directory | |
| 351 | outputmakefile: | |
| 352 | $(Q)if test ! $(srctree) -ef $(objtree); then \ | |
| 353 | $(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ | |
| 354 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) \ | |
| 355 | > $(objtree)/Makefile; \ | |
| 356 | echo ' GEN $(objtree)/Makefile'; \ | |
| 357 | fi | |
| 358 | ||
| 359 | # To make sure we do not include .config for any of the *config targets | |
| 360 | # catch them early, and hand them over to scripts/kconfig/Makefile | |
| 361 | # It is allowed to specify more targets when calling make, including | |
| 362 | # mixing *config targets and build targets. | |
| 363 | # For example 'make oldconfig all'. | |
| 364 | # Detect when mixed targets is specified, and make a second invocation | |
| 365 | # of make so .config is not included in this case either (for *config). | |
| 366 | ||
| 367 | no-dot-config-targets := clean mrproper distclean \ | |
| 6b6a462c | 368 | cscope TAGS tags help %docs check% |
| 1da177e4 LT |
369 | |
| 370 | config-targets := 0 | |
| 371 | mixed-targets := 0 | |
| 372 | dot-config := 1 | |
| 373 | ||
| 374 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) | |
| 375 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) | |
| 376 | dot-config := 0 | |
| 377 | endif | |
| 378 | endif | |
| 379 | ||
| 380 | ifeq ($(KBUILD_EXTMOD),) | |
| 381 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) | |
| 382 | config-targets := 1 | |
| 383 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) | |
| 384 | mixed-targets := 1 | |
| 385 | endif | |
| 386 | endif | |
| 387 | endif | |
| 388 | ||
| 389 | ifeq ($(mixed-targets),1) | |
| 390 | # =========================================================================== | |
| 391 | # We're called with mixed targets (*config and build targets). | |
| 392 | # Handle them one by one. | |
| 393 | ||
| 394 | %:: FORCE | |
| 395 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ | |
| 396 | ||
| 397 | else | |
| 398 | ifeq ($(config-targets),1) | |
| 399 | # =========================================================================== | |
| 400 | # *config targets only - make sure prerequisites are updated, and descend | |
| 401 | # in scripts/kconfig to make the *config target | |
| 402 | ||
| 403 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. | |
| 404 | # KBUILD_DEFCONFIG may point out an alternative default configuration | |
| 405 | # used for 'make defconfig' | |
| 406 | include $(srctree)/arch/$(ARCH)/Makefile | |
| 407 | export KBUILD_DEFCONFIG | |
| 408 | ||
| cd05e6bd JB |
409 | config %config: scripts_basic outputmakefile FORCE |
| 410 | $(Q)mkdir -p include/linux | |
| 1da177e4 | 411 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
| 8c7f75d3 | 412 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= .kernelrelease |
| 1da177e4 LT |
413 | |
| 414 | else | |
| 415 | # =========================================================================== | |
| 416 | # Build targets only - this includes vmlinux, arch specific targets, clean | |
| 417 | # targets and others. In general all targets except *config targets. | |
| 418 | ||
| 419 | ifeq ($(KBUILD_EXTMOD),) | |
| 420 | # Additional helpers built in scripts/ | |
| 421 | # Carefully list dependencies so we do not try to build scripts twice | |
| 422 | # in parrallel | |
| 423 | .PHONY: scripts | |
| 424 | scripts: scripts_basic include/config/MARKER | |
| 425 | $(Q)$(MAKE) $(build)=$(@) | |
| 426 | ||
| 427 | scripts_basic: include/linux/autoconf.h | |
| 428 | ||
| 429 | # Objects we will link into vmlinux / subdirs we need to visit | |
| 430 | init-y := init/ | |
| 431 | drivers-y := drivers/ sound/ | |
| 432 | net-y := net/ | |
| 433 | libs-y := lib/ | |
| 434 | core-y := usr/ | |
| 435 | endif # KBUILD_EXTMOD | |
| 436 | ||
| 437 | ifeq ($(dot-config),1) | |
| 438 | # In this section, we need .config | |
| 439 | ||
| 440 | # Read in dependencies to all Kconfig* files, make sure to run | |
| 441 | # oldconfig if changes are detected. | |
| 752625cf | 442 | -include .kconfig.d |
| 1da177e4 LT |
443 | |
| 444 | include .config | |
| 445 | ||
| 446 | # If .config needs to be updated, it will be done via the dependency | |
| 447 | # that autoconf has on .config. | |
| 448 | # To avoid any implicit rule to kick in, define an empty command | |
| 752625cf | 449 | .config .kconfig.d: ; |
| 1da177e4 LT |
450 | |
| 451 | # If .config is newer than include/linux/autoconf.h, someone tinkered | |
| 752625cf SR |
452 | # with it and forgot to run make oldconfig. |
| 453 | # If kconfig.d is missing then we are probarly in a cleaned tree so | |
| 454 | # we execute the config step to be sure to catch updated Kconfig files | |
| 455 | include/linux/autoconf.h: .kconfig.d .config | |
| 5011cdd0 | 456 | $(Q)mkdir -p include/linux |
| 1da177e4 LT |
457 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig |
| 458 | else | |
| 459 | # Dummy target needed, because used as prerequisite | |
| 460 | include/linux/autoconf.h: ; | |
| 461 | endif | |
| 462 | ||
| 463 | # The all: target is the default when no target is given on the | |
| 464 | # command line. | |
| 465 | # This allow a user to issue only 'make' to build a kernel including modules | |
| 466 | # Defaults vmlinux but it is usually overriden in the arch makefile | |
| 467 | all: vmlinux | |
| 468 | ||
| 469 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE | |
| 470 | CFLAGS += -Os | |
| 471 | else | |
| 472 | CFLAGS += -O2 | |
| 473 | endif | |
| 474 | ||
| 475 | #Add align options if CONFIG_CC_* is not equal to 0 | |
| 476 | add-align = $(if $(filter-out 0,$($(1))),$(cc-option-align)$(2)=$($(1))) | |
| 477 | CFLAGS += $(call add-align,CONFIG_CC_ALIGN_FUNCTIONS,-functions) | |
| 478 | CFLAGS += $(call add-align,CONFIG_CC_ALIGN_LABELS,-labels) | |
| 479 | CFLAGS += $(call add-align,CONFIG_CC_ALIGN_LOOPS,-loops) | |
| 480 | CFLAGS += $(call add-align,CONFIG_CC_ALIGN_JUMPS,-jumps) | |
| 481 | ||
| 482 | ifdef CONFIG_FRAME_POINTER | |
| 0030cbf0 | 483 | CFLAGS += -fno-omit-frame-pointer $(call cc-option,-fno-optimize-sibling-calls,) |
| 1da177e4 LT |
484 | else |
| 485 | CFLAGS += -fomit-frame-pointer | |
| 486 | endif | |
| 487 | ||
| 488 | ifdef CONFIG_DEBUG_INFO | |
| 489 | CFLAGS += -g | |
| 490 | endif | |
| 491 | ||
| 492 | include $(srctree)/arch/$(ARCH)/Makefile | |
| 493 | ||
| e8e69931 | 494 | # arch Makefile may override CC so keep this after arch Makefile is included |
| e8f5bdb0 | 495 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) |
| e8e69931 SR |
496 | CHECKFLAGS += $(NOSTDINC_FLAGS) |
| 497 | ||
| 1da177e4 LT |
498 | # warn about C99 declaration after statement |
| 499 | CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) | |
| 500 | ||
| 501 | # disable pointer signedness warnings in gcc 4.0 | |
| 502 | CFLAGS += $(call cc-option,-Wno-pointer-sign,) | |
| 503 | ||
| 504 | # Default kernel image to build when no specific target is given. | |
| 505 | # KBUILD_IMAGE may be overruled on the commandline or | |
| 506 | # set in the environment | |
| 507 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over | |
| 508 | # this default value | |
| 509 | export KBUILD_IMAGE ?= vmlinux | |
| 510 | ||
| 511 | # | |
| 512 | # INSTALL_PATH specifies where to place the updated kernel and system map | |
| 513 | # images. Default is /boot, but you can set it to other values | |
| 514 | export INSTALL_PATH ?= /boot | |
| 515 | ||
| 516 | # | |
| 517 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory | |
| 518 | # relocations required by build roots. This is not defined in the | |
| 519 | # makefile but the arguement can be passed to make if needed. | |
| 520 | # | |
| 521 | ||
| df9df036 | 522 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
| 1da177e4 LT |
523 | export MODLIB |
| 524 | ||
| 525 | ||
| 526 | ifeq ($(KBUILD_EXTMOD),) | |
| 3a65dfe8 | 527 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ |
| 1da177e4 LT |
528 | |
| 529 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ | |
| 530 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ | |
| 531 | $(net-y) $(net-m) $(libs-y) $(libs-m))) | |
| 532 | ||
| 533 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ | |
| 534 | $(init-n) $(init-) \ | |
| 535 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ | |
| 536 | $(net-n) $(net-) $(libs-n) $(libs-)))) | |
| 537 | ||
| 538 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) | |
| 539 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) | |
| 540 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) | |
| 541 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) | |
| 542 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) | |
| 543 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) | |
| 544 | libs-y := $(libs-y1) $(libs-y2) | |
| 545 | ||
| 546 | # Build vmlinux | |
| 547 | # --------------------------------------------------------------------------- | |
| 548 | # vmlinux is build from the objects selected by $(vmlinux-init) and | |
| 549 | # $(vmlinux-main). Most are built-in.o files from top-level directories | |
| 550 | # in the kernel tree, others are specified in arch/$(ARCH)Makefile. | |
| 551 | # Ordering when linking is important, and $(vmlinux-init) must be first. | |
| 552 | # | |
| 553 | # vmlinux | |
| 554 | # ^ | |
| 555 | # | | |
| 556 | # +-< $(vmlinux-init) | |
| 557 | # | +--< init/version.o + more | |
| 558 | # | | |
| 559 | # +--< $(vmlinux-main) | |
| 560 | # | +--< driver/built-in.o mm/built-in.o + more | |
| 561 | # | | |
| 562 | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) | |
| 563 | # | |
| 564 | # vmlinux version (uname -v) cannot be updated during normal | |
| 565 | # descending-into-subdirs phase since we do not yet know if we need to | |
| 566 | # update vmlinux. | |
| 567 | # Therefore this step is delayed until just before final link of vmlinux - | |
| 568 | # except in the kallsyms case where it is done just before adding the | |
| 569 | # symbols to the kernel. | |
| 570 | # | |
| 571 | # System.map is generated to document addresses of all kernel symbols | |
| 572 | ||
| 573 | vmlinux-init := $(head-y) $(init-y) | |
| 574 | vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) | |
| 575 | vmlinux-all := $(vmlinux-init) $(vmlinux-main) | |
| 576 | vmlinux-lds := arch/$(ARCH)/kernel/vmlinux.lds | |
| 577 | ||
| 578 | # Rule to link vmlinux - also used during CONFIG_KALLSYMS | |
| 579 | # May be overridden by arch/$(ARCH)/Makefile | |
| 580 | quiet_cmd_vmlinux__ ?= LD $@ | |
| 581 | cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ | |
| 582 | -T $(vmlinux-lds) $(vmlinux-init) \ | |
| 583 | --start-group $(vmlinux-main) --end-group \ | |
| 584 | $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) FORCE ,$^) | |
| 585 | ||
| 586 | # Generate new vmlinux version | |
| 587 | quiet_cmd_vmlinux_version = GEN .version | |
| 588 | cmd_vmlinux_version = set -e; \ | |
| 4e25d8bb JB |
589 | if [ ! -r .version ]; then \ |
| 590 | rm -f .version; \ | |
| 591 | echo 1 >.version; \ | |
| 592 | else \ | |
| 593 | mv .version .old_version; \ | |
| 594 | expr 0$$(cat .old_version) + 1 >.version; \ | |
| 595 | fi; \ | |
| 1da177e4 LT |
596 | $(MAKE) $(build)=init |
| 597 | ||
| 598 | # Generate System.map | |
| 599 | quiet_cmd_sysmap = SYSMAP | |
| 600 | cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap | |
| 601 | ||
| 602 | # Link of vmlinux | |
| 603 | # If CONFIG_KALLSYMS is set .version is already updated | |
| 604 | # Generate System.map and verify that the content is consistent | |
| 39ca371c MR |
605 | # Use + in front of the vmlinux_version rule to silent warning with make -j2 |
| 606 | # First command is ':' to allow us to use + in front of the rule | |
| 1da177e4 | 607 | define rule_vmlinux__ |
| 39ca371c | 608 | : |
| 1da177e4 LT |
609 | $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) |
| 610 | ||
| 611 | $(call cmd,vmlinux__) | |
| 612 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd | |
| 613 | ||
| 614 | $(Q)$(if $($(quiet)cmd_sysmap), \ | |
| 615 | echo ' $($(quiet)cmd_sysmap) System.map' &&) \ | |
| 616 | $(cmd_sysmap) $@ System.map; \ | |
| 617 | if [ $$? -ne 0 ]; then \ | |
| 618 | rm -f $@; \ | |
| 619 | /bin/false; \ | |
| 620 | fi; | |
| 621 | $(verify_kallsyms) | |
| 622 | endef | |
| 623 | ||
| 624 | ||
| 625 | ifdef CONFIG_KALLSYMS | |
| 626 | # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) | |
| 627 | # It's a three stage process: | |
| 628 | # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is | |
| 629 | # empty | |
| 630 | # Running kallsyms on that gives us .tmp_kallsyms1.o with | |
| 631 | # the right size - vmlinux version (uname -v) is updated during this step | |
| 632 | # o .tmp_vmlinux2 now has a __kallsyms section of the right size, | |
| 633 | # but due to the added section, some addresses have shifted. | |
| 634 | # From here, we generate a correct .tmp_kallsyms2.o | |
| 635 | # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. | |
| 636 | # o Verify that the System.map from vmlinux matches the map from | |
| 637 | # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. | |
| 638 | # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using | |
| 639 | # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a | |
| 640 | # temporary bypass to allow the kernel to be built while the | |
| 641 | # maintainers work out what went wrong with kallsyms. | |
| 642 | ||
| 643 | ifdef CONFIG_KALLSYMS_EXTRA_PASS | |
| 644 | last_kallsyms := 3 | |
| 645 | else | |
| 646 | last_kallsyms := 2 | |
| 647 | endif | |
| 648 | ||
| 649 | kallsyms.o := .tmp_kallsyms$(last_kallsyms).o | |
| 650 | ||
| 651 | define verify_kallsyms | |
| 652 | $(Q)$(if $($(quiet)cmd_sysmap), \ | |
| 653 | echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ | |
| 654 | $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map | |
| 655 | $(Q)cmp -s System.map .tmp_System.map || \ | |
| 656 | (echo Inconsistent kallsyms data; \ | |
| 657 | echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ | |
| 658 | rm .tmp_kallsyms* ; /bin/false ) | |
| 659 | endef | |
| 660 | ||
| 661 | # Update vmlinux version before link | |
| 662 | # Use + in front of this rule to silent warning about make -j1 | |
| 72ba47c1 | 663 | # First command is ':' to allow us to use + in front of this rule |
| 1da177e4 LT |
664 | cmd_ksym_ld = $(cmd_vmlinux__) |
| 665 | define rule_ksym_ld | |
| 72ba47c1 | 666 | : |
| 1da177e4 LT |
667 | +$(call cmd,vmlinux_version) |
| 668 | $(call cmd,vmlinux__) | |
| 669 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd | |
| 670 | endef | |
| 671 | ||
| 672 | # Generate .S file with all kernel symbols | |
| 673 | quiet_cmd_kallsyms = KSYM $@ | |
| 674 | cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ | |
| 675 | $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ | |
| 676 | ||
| 677 | .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE | |
| 678 | $(call if_changed_dep,as_o_S) | |
| 679 | ||
| 680 | .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) | |
| 681 | $(call cmd,kallsyms) | |
| 682 | ||
| 683 | # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version | |
| 684 | .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE | |
| 685 | $(call if_changed_rule,ksym_ld) | |
| 686 | ||
| 687 | .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE | |
| 688 | $(call if_changed,vmlinux__) | |
| 689 | ||
| 690 | .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE | |
| 691 | $(call if_changed,vmlinux__) | |
| 692 | ||
| 693 | # Needs to visit scripts/ before $(KALLSYMS) can be used. | |
| 694 | $(KALLSYMS): scripts ; | |
| 695 | ||
| 33bc25ea SR |
696 | # Generate some data for debugging strange kallsyms problems |
| 697 | debug_kallsyms: .tmp_map$(last_kallsyms) | |
| 698 | ||
| 699 | .tmp_map%: .tmp_vmlinux% FORCE | |
| 700 | ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ | |
| 701 | ||
| 702 | .tmp_map3: .tmp_map2 | |
| 703 | ||
| 704 | .tmp_map2: .tmp_map1 | |
| 705 | ||
| 1da177e4 LT |
706 | endif # ifdef CONFIG_KALLSYMS |
| 707 | ||
| 708 | # vmlinux image - including updated kernel symbols | |
| 709 | vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) FORCE | |
| 710 | $(call if_changed_rule,vmlinux__) | |
| 4e25d8bb | 711 | $(Q)rm -f .old_version |
| 1da177e4 LT |
712 | |
| 713 | # The actual objects are generated when descending, | |
| 714 | # make sure no implicit rule kicks in | |
| 715 | $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; | |
| 716 | ||
| 717 | # Handle descending into subdirectories listed in $(vmlinux-dirs) | |
| 718 | # Preset locale variables to speed up the build process. Limit locale | |
| 719 | # tweaks to this spot to avoid wrong language settings when running | |
| 720 | # make menuconfig etc. | |
| 721 | # Error messages still appears in the original language | |
| 722 | ||
| 723 | .PHONY: $(vmlinux-dirs) | |
| 5bb78269 | 724 | $(vmlinux-dirs): prepare scripts |
| 1da177e4 LT |
725 | $(Q)$(MAKE) $(build)=$@ |
| 726 | ||
| cb58455c SR |
727 | # Build the kernel release string |
| 728 | # The KERNELRELEASE is stored in a file named .kernelrelease | |
| 729 | # to be used when executing for example make install or make modules_install | |
| 730 | # | |
| 731 | # Take the contents of any files called localversion* and the config | |
| 732 | # variable CONFIG_LOCALVERSION and append them to KERNELRELEASE. | |
| 733 | # LOCALVERSION from the command line override all of this | |
| 734 | ||
| 735 | nullstring := | |
| 736 | space := $(nullstring) # end of line | |
| 737 | ||
| 738 | ___localver = $(objtree)/localversion* $(srctree)/localversion* | |
| 739 | __localver = $(sort $(wildcard $(___localver))) | |
| 740 | # skip backup files (containing '~') | |
| 741 | _localver = $(foreach f, $(__localver), $(if $(findstring ~, $(f)),,$(f))) | |
| 742 | ||
| 743 | localver = $(subst $(space),, \ | |
| 744 | $(shell cat /dev/null $(_localver)) \ | |
| 745 | $(patsubst "%",%,$(CONFIG_LOCALVERSION))) | |
| 746 | ||
| 747 | # If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called | |
| 748 | # and if the SCM is know a tag from the SCM is appended. | |
| 749 | # The appended tag is determinded by the SCM used. | |
| 750 | # | |
| 751 | # Currently, only git is supported. | |
| 752 | # Other SCMs can edit scripts/setlocalversion and add the appropriate | |
| 753 | # checks as needed. | |
| 754 | ifdef CONFIG_LOCALVERSION_AUTO | |
| 755 | _localver-auto = $(shell $(CONFIG_SHELL) \ | |
| 756 | $(srctree)/scripts/setlocalversion $(srctree)) | |
| 757 | localver-auto = $(LOCALVERSION)$(_localver-auto) | |
| 758 | endif | |
| 759 | ||
| 760 | localver-full = $(localver)$(localver-auto) | |
| 761 | ||
| 762 | # Store (new) KERNELRELASE string in .kernelrelease | |
| 2244cbd8 | 763 | kernelrelease = $(KERNELVERSION)$(localver-full) |
| cb58455c | 764 | .kernelrelease: FORCE |
| 2244cbd8 SR |
765 | $(Q)rm -f $@ |
| 766 | $(Q)echo $(kernelrelease) > $@ | |
| cb58455c SR |
767 | |
| 768 | ||
| 1da177e4 | 769 | # Things we need to do before we recursively start building the kernel |
| 5bb78269 SR |
770 | # or the modules are listed in "prepare". |
| 771 | # A multi level approach is used. prepareN is processed before prepareN-1. | |
| 772 | # archprepare is used in arch Makefiles and when processed asm symlink, | |
| 773 | # version.h and scripts_basic is processed / created. | |
| 1da177e4 | 774 | |
| 5bb78269 SR |
775 | # Listed in dependency order |
| 776 | .PHONY: prepare archprepare prepare0 prepare1 prepare2 prepare3 | |
| 777 | ||
| 778 | # prepare-all is deprecated, use prepare as valid replacement | |
| 779 | .PHONY: prepare-all | |
| 1da177e4 | 780 | |
| 86feeaa8 | 781 | # prepare3 is used to check if we are building in a separate output directory, |
| 1da177e4 LT |
782 | # and if so do: |
| 783 | # 1) Check that make has not been executed in the kernel src $(srctree) | |
| 784 | # 2) Create the include2 directory, used for the second asm symlink | |
| cb58455c | 785 | prepare3: .kernelrelease |
| 1da177e4 LT |
786 | ifneq ($(KBUILD_SRC),) |
| 787 | @echo ' Using $(srctree) as source for kernel' | |
| d80e2246 | 788 | $(Q)if [ -f $(srctree)/.config ]; then \ |
| 1da177e4 LT |
789 | echo " $(srctree) is not clean, please run 'make mrproper'";\ |
| 790 | echo " in the '$(srctree)' directory.";\ | |
| 791 | /bin/false; \ | |
| 792 | fi; | |
| 793 | $(Q)if [ ! -d include2 ]; then mkdir -p include2; fi; | |
| 794 | $(Q)ln -fsn $(srctree)/include/asm-$(ARCH) include2/asm | |
| 795 | endif | |
| 796 | ||
| 86feeaa8 SR |
797 | # prepare2 creates a makefile if using a separate output directory |
| 798 | prepare2: prepare3 outputmakefile | |
| 1da177e4 | 799 | |
| 86feeaa8 | 800 | prepare1: prepare2 include/linux/version.h include/asm \ |
| d80e2246 | 801 | include/config/MARKER |
| 1da177e4 LT |
802 | ifneq ($(KBUILD_MODULES),) |
| 803 | $(Q)rm -rf $(MODVERDIR) | |
| 804 | $(Q)mkdir -p $(MODVERDIR) | |
| 805 | endif | |
| 806 | ||
| 5bb78269 SR |
807 | archprepare: prepare1 scripts_basic |
| 808 | ||
| 809 | prepare0: archprepare FORCE | |
| 8d36a623 | 810 | $(Q)$(MAKE) $(build)=. |
| 86feeaa8 | 811 | |
| 1da177e4 | 812 | # All the preparing.. |
| 5bb78269 | 813 | prepare prepare-all: prepare0 |
| 1da177e4 LT |
814 | |
| 815 | # Leave this as default for preprocessing vmlinux.lds.S, which is now | |
| 816 | # done in arch/$(ARCH)/kernel/Makefile | |
| 817 | ||
| 818 | export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) | |
| 819 | ||
| 1da177e4 LT |
820 | # FIXME: The asm symlink changes when $(ARCH) changes. That's |
| 821 | # hard to detect, but I suppose "make mrproper" is a good idea | |
| 822 | # before switching between archs anyway. | |
| 823 | ||
| 824 | include/asm: | |
| 825 | @echo ' SYMLINK $@ -> include/asm-$(ARCH)' | |
| 826 | $(Q)if [ ! -d include ]; then mkdir -p include; fi; | |
| 827 | @ln -fsn asm-$(ARCH) $@ | |
| 828 | ||
| 829 | # Split autoconf.h into include/linux/config/* | |
| 830 | ||
| cd05e6bd | 831 | include/config/MARKER: scripts/basic/split-include include/linux/autoconf.h |
| 1da177e4 LT |
832 | @echo ' SPLIT include/linux/autoconf.h -> include/config/*' |
| 833 | @scripts/basic/split-include include/linux/autoconf.h include/config | |
| 834 | @touch $@ | |
| 835 | ||
| 836 | # Generate some files | |
| 837 | # --------------------------------------------------------------------------- | |
| 838 | ||
| 839 | # KERNELRELEASE can change from a few different places, meaning version.h | |
| 840 | # needs to be updated, so this check is forced on all builds | |
| 841 | ||
| 842 | uts_len := 64 | |
| 843 | ||
| 844 | define filechk_version.h | |
| 845 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ | |
| 846 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ | |
| 847 | exit 1; \ | |
| 848 | fi; \ | |
| 849 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\"; \ | |
| 850 | echo \#define LINUX_VERSION_CODE `expr $(VERSION) \\* 65536 + $(PATCHLEVEL) \\* 256 + $(SUBLEVEL)`; \ | |
| 851 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))'; \ | |
| 852 | ) | |
| 853 | endef | |
| 854 | ||
| 2244cbd8 | 855 | include/linux/version.h: $(srctree)/Makefile .config FORCE |
| 1da177e4 LT |
856 | $(call filechk,version.h) |
| 857 | ||
| 858 | # --------------------------------------------------------------------------- | |
| 859 | ||
| 860 | .PHONY: depend dep | |
| 861 | depend dep: | |
| 862 | @echo '*** Warning: make $@ is unnecessary now.' | |
| 863 | ||
| 864 | # --------------------------------------------------------------------------- | |
| 865 | # Modules | |
| 866 | ||
| 867 | ifdef CONFIG_MODULES | |
| 868 | ||
| 869 | # By default, build modules as well | |
| 870 | ||
| 871 | all: modules | |
| 872 | ||
| 873 | # Build modules | |
| 874 | ||
| 875 | .PHONY: modules | |
| 876 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) | |
| 877 | @echo ' Building modules, stage 2.'; | |
| 878 | $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost | |
| 879 | ||
| 880 | ||
| 881 | # Target to prepare building external modules | |
| 882 | .PHONY: modules_prepare | |
| 5bb78269 | 883 | modules_prepare: prepare scripts |
| 1da177e4 LT |
884 | |
| 885 | # Target to install modules | |
| 886 | .PHONY: modules_install | |
| 887 | modules_install: _modinst_ _modinst_post | |
| 888 | ||
| 889 | .PHONY: _modinst_ | |
| 890 | _modinst_: | |
| ce454d4d | 891 | @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ |
| 1da177e4 LT |
892 | echo "Warning: you may need to install module-init-tools"; \ |
| 893 | echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ | |
| 894 | sleep 1; \ | |
| 895 | fi | |
| 896 | @rm -rf $(MODLIB)/kernel | |
| 897 | @rm -f $(MODLIB)/source | |
| 898 | @mkdir -p $(MODLIB)/kernel | |
| 899 | @ln -s $(srctree) $(MODLIB)/source | |
| 900 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ | |
| 901 | rm -f $(MODLIB)/build ; \ | |
| 902 | ln -s $(objtree) $(MODLIB)/build ; \ | |
| 903 | fi | |
| 904 | $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modinst | |
| 905 | ||
| 906 | # If System.map exists, run depmod. This deliberately does not have a | |
| 907 | # dependency on System.map since that would run the dependency tree on | |
| 908 | # vmlinux. This depmod is only for convenience to give the initial | |
| 909 | # boot a modules.dep even before / is mounted read-write. However the | |
| 910 | # boot script depmod is the master version. | |
| 911 | ifeq "$(strip $(INSTALL_MOD_PATH))" "" | |
| 912 | depmod_opts := | |
| 913 | else | |
| 914 | depmod_opts := -b $(INSTALL_MOD_PATH) -r | |
| 915 | endif | |
| 916 | .PHONY: _modinst_post | |
| 917 | _modinst_post: _modinst_ | |
| 918 | if [ -r System.map -a -x $(DEPMOD) ]; then $(DEPMOD) -ae -F System.map $(depmod_opts) $(KERNELRELEASE); fi | |
| 919 | ||
| 920 | else # CONFIG_MODULES | |
| 921 | ||
| 922 | # Modules not configured | |
| 923 | # --------------------------------------------------------------------------- | |
| 924 | ||
| 925 | modules modules_install: FORCE | |
| 926 | @echo | |
| 927 | @echo "The present kernel configuration has modules disabled." | |
| 928 | @echo "Type 'make config' and enable loadable module support." | |
| 929 | @echo "Then build a kernel with module support enabled." | |
| 930 | @echo | |
| 931 | @exit 1 | |
| 932 | ||
| 933 | endif # CONFIG_MODULES | |
| 934 | ||
| 1da177e4 LT |
935 | ### |
| 936 | # Cleaning is done on three levels. | |
| 937 | # make clean Delete most generated files | |
| 938 | # Leave enough to build external modules | |
| 939 | # make mrproper Delete the current configuration, and all generated files | |
| 940 | # make distclean Remove editor backup files, patch leftover files and the like | |
| 941 | ||
| 942 | # Directories & files removed with 'make clean' | |
| 943 | CLEAN_DIRS += $(MODVERDIR) | |
| 944 | CLEAN_FILES += vmlinux System.map \ | |
| 945 | .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map | |
| 946 | ||
| 947 | # Directories & files removed with 'make mrproper' | |
| 948 | MRPROPER_DIRS += include/config include2 | |
| 50aa88e2 | 949 | MRPROPER_FILES += .config .config.old include/asm .version .old_version \ |
| 1da177e4 | 950 | include/linux/autoconf.h include/linux/version.h \ |
| cb58455c | 951 | .kernelrelease Module.symvers tags TAGS cscope* |
| 1da177e4 LT |
952 | |
| 953 | # clean - Delete most, but leave enough to build external modules | |
| 954 | # | |
| 955 | clean: rm-dirs := $(CLEAN_DIRS) | |
| 956 | clean: rm-files := $(CLEAN_FILES) | |
| 86feeaa8 | 957 | clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs)) |
| 1da177e4 LT |
958 | |
| 959 | .PHONY: $(clean-dirs) clean archclean | |
| 960 | $(clean-dirs): | |
| 961 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | |
| 962 | ||
| 963 | clean: archclean $(clean-dirs) | |
| 964 | $(call cmd,rmdirs) | |
| 965 | $(call cmd,rmfiles) | |
| 966 | @find . $(RCS_FIND_IGNORE) \ | |
| 967 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | |
| 968 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ | |
| 969 | -type f -print | xargs rm -f | |
| 970 | ||
| 971 | # mrproper - Delete all generated files, including .config | |
| 972 | # | |
| 973 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) | |
| 974 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) | |
| 975 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) | |
| 976 | ||
| 977 | .PHONY: $(mrproper-dirs) mrproper archmrproper | |
| 978 | $(mrproper-dirs): | |
| 979 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) | |
| 980 | ||
| 981 | mrproper: clean archmrproper $(mrproper-dirs) | |
| 982 | $(call cmd,rmdirs) | |
| 983 | $(call cmd,rmfiles) | |
| 984 | ||
| 985 | # distclean | |
| 986 | # | |
| 987 | .PHONY: distclean | |
| 988 | ||
| 989 | distclean: mrproper | |
| 990 | @find $(srctree) $(RCS_FIND_IGNORE) \ | |
| 991 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ | |
| 992 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ | |
| 993 | -o -name '.*.rej' -o -size 0 \ | |
| 994 | -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ | |
| 995 | -type f -print | xargs rm -f | |
| 996 | ||
| 997 | ||
| 998 | # Packaging of the kernel to various formats | |
| 999 | # --------------------------------------------------------------------------- | |
| 1000 | # rpm target kept for backward compatibility | |
| 1001 | package-dir := $(srctree)/scripts/package | |
| 1002 | ||
| 1003 | .PHONY: %-pkg rpm | |
| 1004 | ||
| 1005 | %pkg: FORCE | |
| 1006 | $(Q)$(MAKE) -f $(package-dir)/Makefile $@ | |
| 1007 | rpm: FORCE | |
| 1008 | $(Q)$(MAKE) -f $(package-dir)/Makefile $@ | |
| 1009 | ||
| 1010 | ||
| 1011 | # Brief documentation of the typical targets used | |
| 1012 | # --------------------------------------------------------------------------- | |
| 1013 | ||
| 1014 | boards := $(wildcard $(srctree)/arch/$(ARCH)/configs/*_defconfig) | |
| 1015 | boards := $(notdir $(boards)) | |
| 1016 | ||
| 1017 | help: | |
| 1018 | @echo 'Cleaning targets:' | |
| 1019 | @echo ' clean - remove most generated files but keep the config' | |
| 1020 | @echo ' mrproper - remove all generated files + config + various backup files' | |
| 1021 | @echo '' | |
| 1022 | @echo 'Configuration targets:' | |
| 1023 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help | |
| 1024 | @echo '' | |
| 1025 | @echo 'Other generic targets:' | |
| 1026 | @echo ' all - Build all targets marked with [*]' | |
| 1027 | @echo '* vmlinux - Build the bare kernel' | |
| 1028 | @echo '* modules - Build all modules' | |
| 9cc5d74c | 1029 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
| 1da177e4 LT |
1030 | @echo ' dir/ - Build all files in dir and below' |
| 1031 | @echo ' dir/file.[ois] - Build specified target only' | |
| 155ad605 | 1032 | @echo ' dir/file.ko - Build module including final link' |
| 1da177e4 LT |
1033 | @echo ' rpm - Build a kernel as an RPM package' |
| 1034 | @echo ' tags/TAGS - Generate tags file for editors' | |
| 1035 | @echo ' cscope - Generate cscope index' | |
| 6d128842 | 1036 | @echo ' kernelrelease - Output the release version string' |
| cb58455c | 1037 | @echo ' kernelversion - Output the version stored in Makefile' |
| 1da177e4 LT |
1038 | @echo '' |
| 1039 | @echo 'Static analysers' | |
| 1040 | @echo ' buildcheck - List dangling references to vmlinux discarded sections' | |
| 1041 | @echo ' and init sections from non-init sections' | |
| 1042 | @echo ' checkstack - Generate a list of stack hogs' | |
| 1043 | @echo ' namespacecheck - Name space analysis on compiled kernel' | |
| 1044 | @echo '' | |
| 1045 | @echo 'Kernel packaging:' | |
| 1046 | @$(MAKE) -f $(package-dir)/Makefile help | |
| 1047 | @echo '' | |
| 1048 | @echo 'Documentation targets:' | |
| 1049 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp | |
| 1050 | @echo '' | |
| 1051 | @echo 'Architecture specific targets ($(ARCH)):' | |
| 1052 | @$(if $(archhelp),$(archhelp),\ | |
| 1053 | echo ' No architecture specific help defined for $(ARCH)') | |
| 1054 | @echo '' | |
| 1055 | @$(if $(boards), \ | |
| 1056 | $(foreach b, $(boards), \ | |
| 1057 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ | |
| 1058 | echo '') | |
| 1059 | ||
| 1060 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' | |
| 1061 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' | |
| 1062 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse)' | |
| 1063 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK (sparse)' | |
| 1064 | @echo '' | |
| 1065 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' | |
| 1066 | @echo 'For further info see the ./README file' | |
| 1067 | ||
| 1068 | ||
| 1069 | # Documentation targets | |
| 1070 | # --------------------------------------------------------------------------- | |
| 1071 | %docs: scripts_basic FORCE | |
| 1072 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ | |
| 1073 | ||
| 1074 | else # KBUILD_EXTMOD | |
| 1075 | ||
| 1076 | ### | |
| 1077 | # External module support. | |
| 1078 | # When building external modules the kernel used as basis is considered | |
| 1079 | # read-only, and no consistency checks are made and the make | |
| 1080 | # system is not used on the basis kernel. If updates are required | |
| 1081 | # in the basis kernel ordinary make commands (without M=...) must | |
| 1082 | # be used. | |
| 1083 | # | |
| 1084 | # The following are the only valid targets when building external | |
| 1085 | # modules. | |
| 1086 | # make M=dir clean Delete all automatically generated files | |
| 1087 | # make M=dir modules Make all modules in specified dir | |
| 1088 | # make M=dir Same as 'make M=dir modules' | |
| 1089 | # make M=dir modules_install | |
| 1090 | # Install the modules build in the module directory | |
| 1091 | # Assumes install directory is already created | |
| 1092 | ||
| 1093 | # We are always building modules | |
| 1094 | KBUILD_MODULES := 1 | |
| 1095 | .PHONY: crmodverdir | |
| 1096 | crmodverdir: | |
| fb3cbd2e | 1097 | $(Q)rm -rf $(MODVERDIR) |
| 1da177e4 LT |
1098 | $(Q)mkdir -p $(MODVERDIR) |
| 1099 | ||
| 1100 | .PHONY: $(objtree)/Module.symvers | |
| 1101 | $(objtree)/Module.symvers: | |
| 1102 | @test -e $(objtree)/Module.symvers || ( \ | |
| 1103 | echo; \ | |
| 1104 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ | |
| 1105 | echo " is missing; modules will have no dependencies and modversions."; \ | |
| 1106 | echo ) | |
| 1107 | ||
| 1108 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) | |
| 1109 | .PHONY: $(module-dirs) modules | |
| 1110 | $(module-dirs): crmodverdir $(objtree)/Module.symvers | |
| 1111 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) | |
| 1112 | ||
| 1113 | modules: $(module-dirs) | |
| 1114 | @echo ' Building modules, stage 2.'; | |
| 1115 | $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost | |
| 1116 | ||
| 1117 | .PHONY: modules_install | |
| a67dc21a | 1118 | modules_install: _emodinst_ _emodinst_post |
| e6304663 | 1119 | |
| a67dc21a SR |
1120 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) |
| 1121 | .PHONY: _emodinst_ | |
| 1122 | _emodinst_: | |
| 1123 | $(Q)rm -rf $(MODLIB)/$(install-dir) | |
| 1124 | $(Q)mkdir -p $(MODLIB)/$(install-dir) | |
| 1da177e4 LT |
1125 | $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modinst |
| 1126 | ||
| a67dc21a SR |
1127 | # Run depmod only is we have System.map and depmod is executable |
| 1128 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) | |
| 1129 | cmd_depmod = if [ -r System.map -a -x $(DEPMOD) ]; then \ | |
| 1130 | $(DEPMOD) -ae -F System.map \ | |
| 1131 | $(if $(strip $(INSTALL_MOD_PATH)), \ | |
| 1132 | -b $(INSTALL_MOD_PATH) -r) \ | |
| 1133 | $(KERNELRELEASE); \ | |
| 1134 | fi | |
| 1135 | ||
| 1136 | .PHONY: _emodinst_post | |
| 1137 | _emodinst_post: _emodinst_ | |
| 1138 | $(call cmd,depmod) | |
| 1139 | ||
| 1da177e4 LT |
1140 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) |
| 1141 | ||
| 1142 | .PHONY: $(clean-dirs) clean | |
| 1143 | $(clean-dirs): | |
| 1144 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | |
| 1145 | ||
| 1146 | clean: rm-dirs := $(MODVERDIR) | |
| 1147 | clean: $(clean-dirs) | |
| 1148 | $(call cmd,rmdirs) | |
| 1149 | @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \ | |
| 1150 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | |
| 1151 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ | |
| 1152 | -type f -print | xargs rm -f | |
| 1153 | ||
| 1154 | help: | |
| 1155 | @echo ' Building external modules.' | |
| 1156 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' | |
| 1157 | @echo '' | |
| 1158 | @echo ' modules - default target, build the module(s)' | |
| 1159 | @echo ' modules_install - install the module' | |
| 1160 | @echo ' clean - remove generated files in module directory only' | |
| 1161 | @echo '' | |
| 06300b21 SR |
1162 | |
| 1163 | # Dummies... | |
| 1164 | .PHONY: prepare scripts | |
| 1165 | prepare: ; | |
| 1166 | scripts: ; | |
| 1da177e4 LT |
1167 | endif # KBUILD_EXTMOD |
| 1168 | ||
| 1169 | # Generate tags for editors | |
| 1170 | # --------------------------------------------------------------------------- | |
| 1171 | ||
| 1172 | #We want __srctree to totally vanish out when KBUILD_OUTPUT is not set | |
| 1173 | #(which is the most common case IMHO) to avoid unneeded clutter in the big tags file. | |
| 1174 | #Adding $(srctree) adds about 20M on i386 to the size of the output file! | |
| 1175 | ||
| f182ae62 | 1176 | ifeq ($(src),$(obj)) |
| 1da177e4 LT |
1177 | __srctree = |
| 1178 | else | |
| 1179 | __srctree = $(srctree)/ | |
| 1180 | endif | |
| 1181 | ||
| 2ab23c95 PBG |
1182 | ifeq ($(ALLSOURCE_ARCHS),) |
| 1183 | ifeq ($(ARCH),um) | |
| 1184 | ALLINCLUDE_ARCHS := $(ARCH) $(SUBARCH) | |
| 1185 | else | |
| 1186 | ALLINCLUDE_ARCHS := $(ARCH) | |
| 1187 | endif | |
| 1188 | else | |
| 1189 | #Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behaviour. | |
| 1190 | ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS) | |
| 1191 | endif | |
| 1192 | ||
| a0674e88 IC |
1193 | ALLSOURCE_ARCHS := $(ARCH) |
| 1194 | ||
| 1da177e4 LT |
1195 | define all-sources |
| 1196 | ( find $(__srctree) $(RCS_FIND_IGNORE) \ | |
| 1197 | \( -name include -o -name arch \) -prune -o \ | |
| 1198 | -name '*.[chS]' -print; \ | |
| a0674e88 IC |
1199 | for ARCH in $(ALLSOURCE_ARCHS) ; do \ |
| 1200 | find $(__srctree)arch/$${ARCH} $(RCS_FIND_IGNORE) \ | |
| 1201 | -name '*.[chS]' -print; \ | |
| 1202 | done ; \ | |
| 1da177e4 LT |
1203 | find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \ |
| 1204 | -name '*.[chS]' -print; \ | |
| 1205 | find $(__srctree)include $(RCS_FIND_IGNORE) \ | |
| 1206 | \( -name config -o -name 'asm-*' \) -prune \ | |
| 1207 | -o -name '*.[chS]' -print; \ | |
| 2ab23c95 | 1208 | for ARCH in $(ALLINCLUDE_ARCHS) ; do \ |
| a0674e88 IC |
1209 | find $(__srctree)include/asm-$${ARCH} $(RCS_FIND_IGNORE) \ |
| 1210 | -name '*.[chS]' -print; \ | |
| 1211 | done ; \ | |
| 1da177e4 LT |
1212 | find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \ |
| 1213 | -name '*.[chS]' -print ) | |
| 1214 | endef | |
| 1215 | ||
| 1216 | quiet_cmd_cscope-file = FILELST cscope.files | |
| acbef459 | 1217 | cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files |
| 1da177e4 LT |
1218 | |
| 1219 | quiet_cmd_cscope = MAKE cscope.out | |
| acbef459 | 1220 | cmd_cscope = cscope -b |
| 1da177e4 LT |
1221 | |
| 1222 | cscope: FORCE | |
| 1223 | $(call cmd,cscope-file) | |
| 1224 | $(call cmd,cscope) | |
| 1225 | ||
| 1226 | quiet_cmd_TAGS = MAKE $@ | |
| 66d609ec SR |
1227 | define cmd_TAGS |
| 1228 | rm -f $@; \ | |
| 54e08a23 ST |
1229 | ETAGSF=`etags --version | grep -i exuberant >/dev/null && \ |
| 1230 | echo "-I __initdata,__exitdata,__acquires,__releases \ | |
| 1231 | -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \ | |
| 1232 | --extra=+f --c-kinds=+px"`; \ | |
| f6333eb4 | 1233 | $(all-sources) | xargs etags $$ETAGSF -a |
| 66d609ec SR |
1234 | endef |
| 1235 | ||
| 1236 | TAGS: FORCE | |
| 1237 | $(call cmd,TAGS) | |
| 1da177e4 | 1238 | |
| 1da177e4 LT |
1239 | |
| 1240 | quiet_cmd_tags = MAKE $@ | |
| 1241 | define cmd_tags | |
| 1242 | rm -f $@; \ | |
| 54e08a23 ST |
1243 | CTAGSF=`ctags --version | grep -i exuberant >/dev/null && \ |
| 1244 | echo "-I __initdata,__exitdata,__acquires,__releases \ | |
| 1245 | -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \ | |
| 1246 | --extra=+f --c-kinds=+px"`; \ | |
| f6333eb4 | 1247 | $(all-sources) | xargs ctags $$CTAGSF -a |
| 1da177e4 LT |
1248 | endef |
| 1249 | ||
| 1da177e4 LT |
1250 | tags: FORCE |
| 1251 | $(call cmd,tags) | |
| 1252 | ||
| 1253 | ||
| 1254 | # Scripts to check various things for consistency | |
| 1255 | # --------------------------------------------------------------------------- | |
| 1256 | ||
| 1da177e4 LT |
1257 | includecheck: |
| 1258 | find * $(RCS_FIND_IGNORE) \ | |
| 1259 | -name '*.[hcS]' -type f -print | sort \ | |
| 1260 | | xargs $(PERL) -w scripts/checkincludes.pl | |
| 1261 | ||
| 1262 | versioncheck: | |
| 1263 | find * $(RCS_FIND_IGNORE) \ | |
| 1264 | -name '*.[hcS]' -type f -print | sort \ | |
| 1265 | | xargs $(PERL) -w scripts/checkversion.pl | |
| 1266 | ||
| 1267 | buildcheck: | |
| 1268 | $(PERL) $(srctree)/scripts/reference_discarded.pl | |
| 1269 | $(PERL) $(srctree)/scripts/reference_init.pl | |
| 1270 | ||
| 1271 | namespacecheck: | |
| 1272 | $(PERL) $(srctree)/scripts/namespace.pl | |
| 1273 | ||
| 1274 | endif #ifeq ($(config-targets),1) | |
| 1275 | endif #ifeq ($(mixed-targets),1) | |
| 1276 | ||
| 1277 | .PHONY: checkstack | |
| 1278 | checkstack: | |
| 1279 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ | |
| 1280 | $(PERL) $(src)/scripts/checkstack.pl $(ARCH) | |
| 1281 | ||
| 1282 | kernelrelease: | |
| 2244cbd8 SR |
1283 | $(if $(wildcard .kernelrelease), $(Q)echo $(KERNELRELEASE), \ |
| 1284 | $(error kernelrelease not valid - run 'make *config' to update it)) | |
| cb58455c | 1285 | kernelversion: |
| 2244cbd8 | 1286 | @echo $(KERNELVERSION) |
| 1da177e4 | 1287 | |
| 06300b21 SR |
1288 | # Single targets |
| 1289 | # --------------------------------------------------------------------------- | |
| 1290 | # The directory part is taken from first prerequisite, so this | |
| 1291 | # works even with external modules | |
| 1292 | %.s: %.c scripts FORCE | |
| 1293 | $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@) | |
| 1294 | %.i: %.c scripts FORCE | |
| 1295 | $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@) | |
| 1296 | %.o: %.c scripts FORCE | |
| 1297 | $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@) | |
| 1298 | %.lst: %.c scripts FORCE | |
| 1299 | $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@) | |
| 1300 | %.s: %.S scripts FORCE | |
| 1301 | $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@) | |
| 1302 | %.o: %.S scripts FORCE | |
| 1303 | $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@) | |
| 1304 | ||
| 1305 | # For external modules we shall include any directory of the target, | |
| 1306 | # but usual case there is no directory part. | |
| 1307 | # make M=`pwd` module.o => $(dir $@)=./ | |
| 1308 | # make M=`pwd` foo/module.o => $(dir $@)=foo/ | |
| 1309 | # make M=`pwd` / => $(dir $@)=/ | |
| 1310 | ||
| 1311 | ifeq ($(KBUILD_EXTMOD),) | |
| 1312 | target-dir = $(@D) | |
| 1313 | else | |
| 1314 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) | |
| 1315 | target-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) | |
| 1316 | endif | |
| 1317 | ||
| 1318 | / %/: scripts prepare FORCE | |
| 1319 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | |
| 1320 | $(build)=$(target-dir) | |
| 1321 | %.ko: scripts FORCE | |
| 1322 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | |
| 1323 | $(build)=$(target-dir) $(@:.ko=.o) | |
| 1324 | $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost | |
| 1325 | ||
| 1da177e4 LT |
1326 | # FIXME Should go into a make.lib or something |
| 1327 | # =========================================================================== | |
| 1328 | ||
| 1329 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) | |
| 1330 | cmd_rmdirs = rm -rf $(rm-dirs) | |
| 1331 | ||
| 1332 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) | |
| 1333 | cmd_rmfiles = rm -f $(rm-files) | |
| 1334 | ||
| 1335 | ||
| 1336 | a_flags = -Wp,-MD,$(depfile) $(AFLAGS) $(AFLAGS_KERNEL) \ | |
| 1337 | $(NOSTDINC_FLAGS) $(CPPFLAGS) \ | |
| 1338 | $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(*F).o) | |
| 1339 | ||
| 1340 | quiet_cmd_as_o_S = AS $@ | |
| 1341 | cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< | |
| 1342 | ||
| 1343 | # read all saved command lines | |
| 1344 | ||
| 1345 | targets := $(wildcard $(sort $(targets))) | |
| 1346 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | |
| 1347 | ||
| 1348 | ifneq ($(cmd_files),) | |
| 1349 | $(cmd_files): ; # Do not try to update included dependency files | |
| 1350 | include $(cmd_files) | |
| 1351 | endif | |
| 1352 | ||
| 1da177e4 LT |
1353 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir |
| 1354 | # Usage: | |
| 1355 | # $(Q)$(MAKE) $(clean)=dir | |
| 1356 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj | |
| 1357 | ||
| 1da177e4 LT |
1358 | endif # skip-makefile |
| 1359 | ||
| 1360 | FORCE: |