| 1 | VERSION = 2␊ |
| 2 | PATCHLEVEL = 6␊ |
| 3 | SUBLEVEL = 24␊ |
| 4 | EXTRAVERSION = .3␊ |
| 5 | NAME = Err Metey! A Heury Beelge-a Ret!␊ |
| 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:␊ |
| 14 | # o use make's built-in rules and variables␊ |
| 15 | # (this increases performance and avoids hard-to-debug behaviour);␊ |
| 16 | # o print "Entering directory ...";␊ |
| 17 | MAKEFLAGS += -rR --no-print-directory␊ |
| 18 | ␊ |
| 19 | # We are using a recursive build, so we need to do a little thinking␊ |
| 20 | # to get the ordering right.␊ |
| 21 | #␊ |
| 22 | # Most importantly: sub-Makefiles should only ever modify files in␊ |
| 23 | # their own directory. If in some directory we have a dependency on␊ |
| 24 | # a file in another dir (which doesn't happen often, but it's often␊ |
| 25 | # unavoidable when linking the built-in.o targets which finally␊ |
| 26 | # turn into vmlinux), we will call a sub make in that other dir, and␊ |
| 27 | # after that we are sure that everything which is in that other dir␊ |
| 28 | # is now up to date.␊ |
| 29 | #␊ |
| 30 | # The only cases where we need to modify files which have global␊ |
| 31 | # effects are thus separated out and done before the recursive␊ |
| 32 | # descending is started. They are now explicitly listed as the␊ |
| 33 | # prepare rule.␊ |
| 34 | ␊ |
| 35 | # To put more focus on warnings, be less verbose as default␊ |
| 36 | # Use 'make V=1' to see the full commands␊ |
| 37 | ␊ |
| 38 | ifdef V␊ |
| 39 | ifeq ("$(origin V)", "command line")␊ |
| 40 | KBUILD_VERBOSE = $(V)␊ |
| 41 | endif␊ |
| 42 | endif␊ |
| 43 | ifndef KBUILD_VERBOSE␊ |
| 44 | KBUILD_VERBOSE = 0␊ |
| 45 | endif␊ |
| 46 | ␊ |
| 47 | # Call a source code checker (by default, "sparse") as part of the␊ |
| 48 | # C compilation.␊ |
| 49 | #␊ |
| 50 | # Use 'make C=1' to enable checking of only re-compiled files.␊ |
| 51 | # Use 'make C=2' to enable checking of *all* source files, regardless␊ |
| 52 | # of whether they are re-compiled or not.␊ |
| 53 | #␊ |
| 54 | # See the file "Documentation/sparse.txt" for more details, including␊ |
| 55 | # where to get the "sparse" utility.␊ |
| 56 | ␊ |
| 57 | ifdef C␊ |
| 58 | ifeq ("$(origin C)", "command line")␊ |
| 59 | KBUILD_CHECKSRC = $(C)␊ |
| 60 | endif␊ |
| 61 | endif␊ |
| 62 | ifndef KBUILD_CHECKSRC␊ |
| 63 | KBUILD_CHECKSRC = 0␊ |
| 64 | endif␊ |
| 65 | ␊ |
| 66 | # Use make M=dir to specify directory of external module to build␊ |
| 67 | # Old syntax make ... SUBDIRS=$PWD is still supported␊ |
| 68 | # Setting the environment variable KBUILD_EXTMOD take precedence␊ |
| 69 | ifdef SUBDIRS␊ |
| 70 | KBUILD_EXTMOD ?= $(SUBDIRS)␊ |
| 71 | endif␊ |
| 72 | ifdef M␊ |
| 73 | ifeq ("$(origin M)", "command line")␊ |
| 74 | KBUILD_EXTMOD := $(M)␊ |
| 75 | endif␊ |
| 76 | endif␊ |
| 77 | ␊ |
| 78 | ␊ |
| 79 | # kbuild supports saving output files in a separate directory.␊ |
| 80 | # To locate output files in a separate directory two syntaxes are supported.␊ |
| 81 | # In both cases the working directory must be the root of the kernel src.␊ |
| 82 | # 1) O=␊ |
| 83 | # Use "make O=dir/to/store/output/files/"␊ |
| 84 | #␊ |
| 85 | # 2) Set KBUILD_OUTPUT␊ |
| 86 | # Set the environment variable KBUILD_OUTPUT to point to the directory␊ |
| 87 | # where the output files shall be placed.␊ |
| 88 | # export KBUILD_OUTPUT=dir/to/store/output/files/␊ |
| 89 | # make␊ |
| 90 | #␊ |
| 91 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment␊ |
| 92 | # variable.␊ |
| 93 | ␊ |
| 94 | ␊ |
| 95 | # KBUILD_SRC is set on invocation of make in OBJ directory␊ |
| 96 | # KBUILD_SRC is not intended to be used by the regular user (for now)␊ |
| 97 | ifeq ($(KBUILD_SRC),)␊ |
| 98 | ␊ |
| 99 | # OK, Make called in directory where kernel src resides␊ |
| 100 | # Do we want to locate output files in a separate directory?␊ |
| 101 | ifdef O␊ |
| 102 | ifeq ("$(origin O)", "command line")␊ |
| 103 | KBUILD_OUTPUT := $(O)␊ |
| 104 | endif␊ |
| 105 | endif␊ |
| 106 | ␊ |
| 107 | # That's our default target when none is given on the command line␊ |
| 108 | PHONY := _all␊ |
| 109 | _all:␊ |
| 110 | ␊ |
| 111 | # Cancel implicit rules on top Makefile␊ |
| 112 | $(CURDIR)/Makefile Makefile: ;␊ |
| 113 | ␊ |
| 114 | ifneq ($(KBUILD_OUTPUT),)␊ |
| 115 | # Invoke a second make in the output directory, passing relevant variables␊ |
| 116 | # check that the output directory actually exists␊ |
| 117 | saved-output := $(KBUILD_OUTPUT)␊ |
| 118 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)␊ |
| 119 | $(if $(KBUILD_OUTPUT),, \␊ |
| 120 | $(error output directory "$(saved-output)" does not exist))␊ |
| 121 | ␊ |
| 122 | PHONY += $(MAKECMDGOALS) sub-make␊ |
| 123 | ␊ |
| 124 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make␊ |
| 125 | ␉$(Q)@:␊ |
| 126 | ␊ |
| 127 | sub-make: FORCE␊ |
| 128 | ␉$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \␊ |
| 129 | ␉KBUILD_SRC=$(CURDIR) \␊ |
| 130 | ␉KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \␊ |
| 131 | ␉$(filter-out _all sub-make,$(MAKECMDGOALS))␊ |
| 132 | ␊ |
| 133 | # Leave processing to above invocation of make␊ |
| 134 | skip-makefile := 1␊ |
| 135 | endif # ifneq ($(KBUILD_OUTPUT),)␊ |
| 136 | endif # ifeq ($(KBUILD_SRC),)␊ |
| 137 | ␊ |
| 138 | # We process the rest of the Makefile if this is the final invocation of make␊ |
| 139 | ifeq ($(skip-makefile),)␊ |
| 140 | ␊ |
| 141 | # If building an external module we do not care about the all: rule␊ |
| 142 | # but instead _all depend on modules␊ |
| 143 | PHONY += all␊ |
| 144 | ifeq ($(KBUILD_EXTMOD),)␊ |
| 145 | _all: all␊ |
| 146 | else␊ |
| 147 | _all: modules␊ |
| 148 | endif␊ |
| 149 | ␊ |
| 150 | srctree␉␉:= $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))␊ |
| 151 | TOPDIR␉␉:= $(srctree)␊ |
| 152 | # FIXME - TOPDIR is obsolete, use srctree/objtree␊ |
| 153 | objtree␉␉:= $(CURDIR)␊ |
| 154 | src␉␉:= $(srctree)␊ |
| 155 | obj␉␉:= $(objtree)␊ |
| 156 | ␊ |
| 157 | VPATH␉␉:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))␊ |
| 158 | ␊ |
| 159 | export srctree objtree VPATH TOPDIR␊ |
| 160 | ␊ |
| 161 | ␊ |
| 162 | # SUBARCH tells the usermode build what the underlying arch is. That is set␊ |
| 163 | # first, and if a usermode build is happening, the "ARCH=um" on the command␊ |
| 164 | # line overrides the setting of ARCH below. If a native build is happening,␊ |
| 165 | # then ARCH is assigned, getting whatever value it gets normally, and ␊ |
| 166 | # SUBARCH is subsequently ignored.␊ |
| 167 | ␊ |
| 168 | SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \␊ |
| 169 | ␉␉␉␉ -e s/arm.*/arm/ -e s/sa110/arm/ \␊ |
| 170 | ␉␉␉␉ -e s/s390x/s390/ -e s/parisc64/parisc/ \␊ |
| 171 | ␉␉␉␉ -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \␊ |
| 172 | ␉␉␉␉ -e s/sh[234].*/sh/ )␊ |
| 173 | ␊ |
| 174 | # Cross compiling and selecting different set of gcc/bin-utils␊ |
| 175 | # ---------------------------------------------------------------------------␊ |
| 176 | #␊ |
| 177 | # When performing cross compilation for other architectures ARCH shall be set␊ |
| 178 | # to the target architecture. (See arch/* for the possibilities).␊ |
| 179 | # ARCH can be set during invocation of make:␊ |
| 180 | # make ARCH=ia64␊ |
| 181 | # Another way is to have ARCH set in the environment.␊ |
| 182 | # The default ARCH is the host where make is executed.␊ |
| 183 | ␊ |
| 184 | # CROSS_COMPILE specify the prefix used for all executables used␊ |
| 185 | # during compilation. Only gcc and related bin-utils executables␊ |
| 186 | # are prefixed with $(CROSS_COMPILE).␊ |
| 187 | # CROSS_COMPILE can be set on the command line␊ |
| 188 | # make CROSS_COMPILE=ia64-linux-␊ |
| 189 | # Alternatively CROSS_COMPILE can be set in the environment.␊ |
| 190 | # Default value for CROSS_COMPILE is not to prefix executables␊ |
| 191 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile␊ |
| 192 | ␊ |
| 193 | ARCH␉␉?= mips␊ |
| 194 | CROSS_COMPILE␉?= mipsel-linux-␊ |
| 195 | ␊ |
| 196 | # Architecture as present in compile.h␊ |
| 197 | UTS_MACHINE ␉:= $(ARCH)␊ |
| 198 | SRCARCH ␉:= $(ARCH)␊ |
| 199 | ␊ |
| 200 | # Additional ARCH settings for x86␊ |
| 201 | ifeq ($(ARCH),i386)␊ |
| 202 | SRCARCH := x86␊ |
| 203 | endif␊ |
| 204 | ifeq ($(ARCH),x86_64)␊ |
| 205 | SRCARCH := x86␊ |
| 206 | endif␊ |
| 207 | ␊ |
| 208 | KCONFIG_CONFIG␉?= .config␊ |
| 209 | ␊ |
| 210 | # SHELL used by kbuild␊ |
| 211 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \␊ |
| 212 | ␉ else if [ -x /bin/bash ]; then echo /bin/bash; \␊ |
| 213 | ␉ else echo sh; fi ; fi)␊ |
| 214 | ␊ |
| 215 | HOSTCC = gcc␊ |
| 216 | HOSTCXX = g++␊ |
| 217 | HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer␊ |
| 218 | HOSTCXXFLAGS = -O2␊ |
| 219 | ␊ |
| 220 | # Decide whether to build built-in, modular, or both.␊ |
| 221 | # Normally, just do built-in.␊ |
| 222 | ␊ |
| 223 | KBUILD_MODULES :=␊ |
| 224 | KBUILD_BUILTIN := 1␊ |
| 225 | ␊ |
| 226 | #␉If we have only "make modules", don't compile built-in objects.␊ |
| 227 | #␉When we're building modules with modversions, we need to consider␊ |
| 228 | #␉the built-in objects during the descend as well, in order to␊ |
| 229 | #␉make sure the checksums are up to date before we record them.␊ |
| 230 | ␊ |
| 231 | ifeq ($(MAKECMDGOALS),modules)␊ |
| 232 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)␊ |
| 233 | endif␊ |
| 234 | ␊ |
| 235 | #␉If we have "make <whatever> modules", compile modules␊ |
| 236 | #␉in addition to whatever we do anyway.␊ |
| 237 | #␉Just "make" or "make all" shall build modules as well␊ |
| 238 | ␊ |
| 239 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)␊ |
| 240 | KBUILD_MODULES := 1␊ |
| 241 | endif␊ |
| 242 | ␊ |
| 243 | ifeq ($(MAKECMDGOALS),)␊ |
| 244 | KBUILD_MODULES := 1␊ |
| 245 | endif␊ |
| 246 | ␊ |
| 247 | export KBUILD_MODULES KBUILD_BUILTIN␊ |
| 248 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD␊ |
| 249 | ␊ |
| 250 | # Beautify output␊ |
| 251 | # ---------------------------------------------------------------------------␊ |
| 252 | #␊ |
| 253 | # Normally, we echo the whole command before executing it. By making␊ |
| 254 | # that echo $($(quiet)$(cmd)), we now have the possibility to set␊ |
| 255 | # $(quiet) to choose other forms of output instead, e.g.␊ |
| 256 | #␊ |
| 257 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@␊ |
| 258 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<␊ |
| 259 | #␊ |
| 260 | # If $(quiet) is empty, the whole command will be printed.␊ |
| 261 | # If it is set to "quiet_", only the short version will be printed. ␊ |
| 262 | # If it is set to "silent_", nothing will be printed at all, since␊ |
| 263 | # the variable $(silent_cmd_cc_o_c) doesn't exist.␊ |
| 264 | #␊ |
| 265 | # A simple variant is to prefix commands with $(Q) - that's useful␊ |
| 266 | # for commands that shall be hidden in non-verbose mode.␊ |
| 267 | #␊ |
| 268 | #␉$(Q)ln $@ :<␊ |
| 269 | #␊ |
| 270 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden.␊ |
| 271 | # If KBUILD_VERBOSE equals 1 then the above command is displayed.␊ |
| 272 | ␊ |
| 273 | ifeq ($(KBUILD_VERBOSE),1)␊ |
| 274 | quiet =␊ |
| 275 | Q =␊ |
| 276 | else␊ |
| 277 | quiet=quiet_␊ |
| 278 | Q = @␊ |
| 279 | endif␊ |
| 280 | ␊ |
| 281 | # If the user is running make -s (silent mode), suppress echoing of␊ |
| 282 | # commands␊ |
| 283 | ␊ |
| 284 | ifneq ($(findstring s,$(MAKEFLAGS)),)␊ |
| 285 | quiet=silent_␊ |
| 286 | endif␊ |
| 287 | ␊ |
| 288 | export quiet Q KBUILD_VERBOSE␊ |
| 289 | ␊ |
| 290 | ␊ |
| 291 | # Look for make include files relative to root of kernel src␊ |
| 292 | MAKEFLAGS += --include-dir=$(srctree)␊ |
| 293 | ␊ |
| 294 | # We need some generic definitions (do not try to remake the file).␊ |
| 295 | $(srctree)/scripts/Kbuild.include: ;␊ |
| 296 | include $(srctree)/scripts/Kbuild.include␊ |
| 297 | ␊ |
| 298 | # Make variables (CC, etc...)␊ |
| 299 | ␊ |
| 300 | AS␉␉= $(CROSS_COMPILE)as␊ |
| 301 | LD␉␉= $(CROSS_COMPILE)ld␊ |
| 302 | CC␉␉= $(CROSS_COMPILE)gcc␊ |
| 303 | CPP␉␉= $(CC) -E␊ |
| 304 | AR␉␉= $(CROSS_COMPILE)ar␊ |
| 305 | NM␉␉= $(CROSS_COMPILE)nm␊ |
| 306 | STRIP␉␉= $(CROSS_COMPILE)strip␊ |
| 307 | OBJCOPY␉␉= $(CROSS_COMPILE)objcopy␊ |
| 308 | OBJDUMP␉␉= $(CROSS_COMPILE)objdump␊ |
| 309 | AWK␉␉= awk␊ |
| 310 | GENKSYMS␉= scripts/genksyms/genksyms␊ |
| 311 | DEPMOD␉␉= /sbin/depmod␊ |
| 312 | KALLSYMS␉= scripts/kallsyms␊ |
| 313 | PERL␉␉= perl␊ |
| 314 | CHECK␉␉= sparse␊ |
| 315 | ␊ |
| 316 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise $(CF)␊ |
| 317 | MODFLAGS␉= -DMODULE␊ |
| 318 | CFLAGS_MODULE = $(MODFLAGS)␊ |
| 319 | AFLAGS_MODULE = $(MODFLAGS)␊ |
| 320 | LDFLAGS_MODULE =␊ |
| 321 | CFLAGS_KERNEL␉=␊ |
| 322 | AFLAGS_KERNEL␉=␊ |
| 323 | ␊ |
| 324 | ␊ |
| 325 | # Use LINUXINCLUDE when you must reference the include/ directory.␊ |
| 326 | # Needed to be compatible with the O= option␊ |
| 327 | LINUXINCLUDE := -Iinclude \␊ |
| 328 | $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \␊ |
| 329 | ␉␉ -include include/linux/autoconf.h␊ |
| 330 | ␊ |
| 331 | KBUILD_CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)␊ |
| 332 | ␊ |
| 333 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \␊ |
| 334 | ␉␉ -fno-strict-aliasing -fno-common \␊ |
| 335 | ␉␉ -Werror-implicit-function-declaration␊ |
| 336 | KBUILD_AFLAGS := -D__ASSEMBLY__␊ |
| 337 | ␊ |
| 338 | # Read KERNELRELEASE from include/config/kernel.release (if it exists)␊ |
| 339 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)␊ |
| 340 | KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)␊ |
| 341 | ␊ |
| 342 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION␊ |
| 343 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC␊ |
| 344 | export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE␊ |
| 345 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS␊ |
| 346 | ␊ |
| 347 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS␊ |
| 348 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE␊ |
| 349 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE␊ |
| 350 | ␊ |
| 351 | # When compiling out-of-tree modules, put MODVERDIR in the module␊ |
| 352 | # tree rather than in the kernel tree. The kernel tree might␊ |
| 353 | # even be read-only.␊ |
| 354 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions␊ |
| 355 | ␊ |
| 356 | # Files to ignore in find ... statements␊ |
| 357 | ␊ |
| 358 | 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␊ |
| 359 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git␊ |
| 360 | ␊ |
| 361 | # ===========================================================================␊ |
| 362 | # Rules shared between *config targets and build targets␊ |
| 363 | ␊ |
| 364 | # Basic helpers built in scripts/␊ |
| 365 | PHONY += scripts_basic␊ |
| 366 | scripts_basic:␊ |
| 367 | ␉$(Q)$(MAKE) $(build)=scripts/basic␊ |
| 368 | ␊ |
| 369 | # To avoid any implicit rule to kick in, define an empty command.␊ |
| 370 | scripts/basic/%: scripts_basic ;␊ |
| 371 | ␊ |
| 372 | PHONY += outputmakefile␊ |
| 373 | # outputmakefile generates a Makefile in the output directory, if using a␊ |
| 374 | # separate output directory. This allows convenient use of make in the␊ |
| 375 | # output directory.␊ |
| 376 | outputmakefile:␊ |
| 377 | ifneq ($(KBUILD_SRC),)␊ |
| 378 | ␉$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \␊ |
| 379 | ␉ $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)␊ |
| 380 | endif␊ |
| 381 | ␊ |
| 382 | # To make sure we do not include .config for any of the *config targets␊ |
| 383 | # catch them early, and hand them over to scripts/kconfig/Makefile␊ |
| 384 | # It is allowed to specify more targets when calling make, including␊ |
| 385 | # mixing *config targets and build targets.␊ |
| 386 | # For example 'make oldconfig all'.␊ |
| 387 | # Detect when mixed targets is specified, and make a second invocation␊ |
| 388 | # of make so .config is not included in this case either (for *config).␊ |
| 389 | ␊ |
| 390 | no-dot-config-targets := clean mrproper distclean \␊ |
| 391 | ␉␉␉ cscope TAGS tags help %docs check% \␊ |
| 392 | ␉␉␉ include/linux/version.h headers_% \␊ |
| 393 | ␉␉␉ kernelrelease kernelversion␊ |
| 394 | ␊ |
| 395 | config-targets := 0␊ |
| 396 | mixed-targets := 0␊ |
| 397 | dot-config := 1␊ |
| 398 | ␊ |
| 399 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)␊ |
| 400 | ␉ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)␊ |
| 401 | ␉␉dot-config := 0␊ |
| 402 | ␉endif␊ |
| 403 | endif␊ |
| 404 | ␊ |
| 405 | ifeq ($(KBUILD_EXTMOD),)␊ |
| 406 | ifneq ($(filter config %config,$(MAKECMDGOALS)),)␊ |
| 407 | config-targets := 1␊ |
| 408 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)␊ |
| 409 | mixed-targets := 1␊ |
| 410 | endif␊ |
| 411 | endif␊ |
| 412 | endif␊ |
| 413 | ␊ |
| 414 | ifeq ($(mixed-targets),1)␊ |
| 415 | # ===========================================================================␊ |
| 416 | # We're called with mixed targets (*config and build targets).␊ |
| 417 | # Handle them one by one.␊ |
| 418 | ␊ |
| 419 | %:: FORCE␊ |
| 420 | ␉$(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@␊ |
| 421 | ␊ |
| 422 | else␊ |
| 423 | ifeq ($(config-targets),1)␊ |
| 424 | # ===========================================================================␊ |
| 425 | # *config targets only - make sure prerequisites are updated, and descend␊ |
| 426 | # in scripts/kconfig to make the *config target␊ |
| 427 | ␊ |
| 428 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.␊ |
| 429 | # KBUILD_DEFCONFIG may point out an alternative default configuration␊ |
| 430 | # used for 'make defconfig'␊ |
| 431 | include $(srctree)/arch/$(SRCARCH)/Makefile␊ |
| 432 | export KBUILD_DEFCONFIG␊ |
| 433 | ␊ |
| 434 | config %config: scripts_basic outputmakefile FORCE␊ |
| 435 | ␉$(Q)mkdir -p include/linux include/config␊ |
| 436 | ␉$(Q)$(MAKE) $(build)=scripts/kconfig $@␊ |
| 437 | ␊ |
| 438 | else␊ |
| 439 | # ===========================================================================␊ |
| 440 | # Build targets only - this includes vmlinux, arch specific targets, clean␊ |
| 441 | # targets and others. In general all targets except *config targets.␊ |
| 442 | ␊ |
| 443 | ifeq ($(KBUILD_EXTMOD),)␊ |
| 444 | # Additional helpers built in scripts/␊ |
| 445 | # Carefully list dependencies so we do not try to build scripts twice␊ |
| 446 | # in parallel␊ |
| 447 | PHONY += scripts␊ |
| 448 | scripts: scripts_basic include/config/auto.conf␊ |
| 449 | ␉$(Q)$(MAKE) $(build)=$(@)␊ |
| 450 | ␊ |
| 451 | # Objects we will link into vmlinux / subdirs we need to visit␊ |
| 452 | init-y␉␉:= init/␊ |
| 453 | drivers-y␉:= sound/ drivers/␊ |
| 454 | net-y␉␉:= net/␊ |
| 455 | libs-y␉␉:= lib/␊ |
| 456 | core-y␉␉:= usr/␊ |
| 457 | endif # KBUILD_EXTMOD␊ |
| 458 | ␊ |
| 459 | ifeq ($(dot-config),1)␊ |
| 460 | # Read in config␊ |
| 461 | -include include/config/auto.conf␊ |
| 462 | ␊ |
| 463 | ifeq ($(KBUILD_EXTMOD),)␊ |
| 464 | # Read in dependencies to all Kconfig* files, make sure to run␊ |
| 465 | # oldconfig if changes are detected.␊ |
| 466 | -include include/config/auto.conf.cmd␊ |
| 467 | ␊ |
| 468 | # To avoid any implicit rule to kick in, define an empty command␊ |
| 469 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;␊ |
| 470 | ␊ |
| 471 | # If .config is newer than include/config/auto.conf, someone tinkered␊ |
| 472 | # with it and forgot to run make oldconfig.␊ |
| 473 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so␊ |
| 474 | # we execute the config step to be sure to catch updated Kconfig files␊ |
| 475 | include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd␊ |
| 476 | ␉$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig␊ |
| 477 | else␊ |
| 478 | # external modules needs include/linux/autoconf.h and include/config/auto.conf␊ |
| 479 | # but do not care if they are up-to-date. Use auto.conf to trigger the test␊ |
| 480 | PHONY += include/config/auto.conf␊ |
| 481 | ␊ |
| 482 | include/config/auto.conf:␊ |
| 483 | ␉$(Q)test -e include/linux/autoconf.h -a -e $@ || (␉␉\␊ |
| 484 | ␉echo;␉␉␉␉␉␉␉␉\␊ |
| 485 | ␉echo " ERROR: Kernel configuration is invalid.";␉␉\␊ |
| 486 | ␉echo " include/linux/autoconf.h or $@ are missing.";␉\␊ |
| 487 | ␉echo " Run 'make oldconfig && make prepare' on kernel src to fix it.";␉\␊ |
| 488 | ␉echo;␉␉␉␉␉␉␉␉\␊ |
| 489 | ␉/bin/false)␊ |
| 490 | ␊ |
| 491 | endif # KBUILD_EXTMOD␊ |
| 492 | ␊ |
| 493 | else␊ |
| 494 | # Dummy target needed, because used as prerequisite␊ |
| 495 | include/config/auto.conf: ;␊ |
| 496 | endif # $(dot-config)␊ |
| 497 | ␊ |
| 498 | # The all: target is the default when no target is given on the␊ |
| 499 | # command line.␊ |
| 500 | # This allow a user to issue only 'make' to build a kernel including modules␊ |
| 501 | # Defaults vmlinux but it is usually overridden in the arch makefile␊ |
| 502 | all: vmlinux␊ |
| 503 | ␊ |
| 504 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE␊ |
| 505 | KBUILD_CFLAGS␉+= -Os␊ |
| 506 | else␊ |
| 507 | KBUILD_CFLAGS␉+= -O2␊ |
| 508 | endif␊ |
| 509 | ␊ |
| 510 | include $(srctree)/arch/$(SRCARCH)/Makefile␊ |
| 511 | ␊ |
| 512 | ifdef CONFIG_FRAME_POINTER␊ |
| 513 | KBUILD_CFLAGS␉+= -fno-omit-frame-pointer -fno-optimize-sibling-calls␊ |
| 514 | else␊ |
| 515 | KBUILD_CFLAGS␉+= -fomit-frame-pointer␊ |
| 516 | endif␊ |
| 517 | ␊ |
| 518 | ifdef CONFIG_DEBUG_INFO␊ |
| 519 | KBUILD_CFLAGS␉+= -g␊ |
| 520 | KBUILD_AFLAGS␉+= -gdwarf-2␊ |
| 521 | endif␊ |
| 522 | ␊ |
| 523 | # Force gcc to behave correct even for buggy distributions␊ |
| 524 | KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector)␊ |
| 525 | ␊ |
| 526 | # arch Makefile may override CC so keep this after arch Makefile is included␊ |
| 527 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)␊ |
| 528 | CHECKFLAGS += $(NOSTDINC_FLAGS)␊ |
| 529 | ␊ |
| 530 | # warn about C99 declaration after statement␊ |
| 531 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)␊ |
| 532 | ␊ |
| 533 | # disable pointer signed / unsigned warnings in gcc 4.0␊ |
| 534 | KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,)␊ |
| 535 | ␊ |
| 536 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments␊ |
| 537 | # But warn user when we do so␊ |
| 538 | warn-assign = \␊ |
| 539 | $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)")␊ |
| 540 | ␊ |
| 541 | ifneq ($(KCPPFLAGS),)␊ |
| 542 | $(call warn-assign,CPPFLAGS)␊ |
| 543 | KBUILD_CPPFLAGS += $(KCPPFLAGS)␊ |
| 544 | endif␊ |
| 545 | ifneq ($(KAFLAGS),)␊ |
| 546 | $(call warn-assign,AFLAGS)␊ |
| 547 | KBUILD_AFLAGS += $(KAFLAGS)␊ |
| 548 | endif␊ |
| 549 | ifneq ($(KCFLAGS),)␊ |
| 550 | $(call warn-assign,CFLAGS)␊ |
| 551 | KBUILD_CFLAGS += $(KCFLAGS)␊ |
| 552 | endif␊ |
| 553 | ␊ |
| 554 | # Use --build-id when available.␊ |
| 555 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\␊ |
| 556 | ␉␉␉ $(call ld-option, -Wl$(comma)--build-id,))␊ |
| 557 | LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)␊ |
| 558 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)␊ |
| 559 | ␊ |
| 560 | # Default kernel image to build when no specific target is given.␊ |
| 561 | # KBUILD_IMAGE may be overruled on the command line or␊ |
| 562 | # set in the environment␊ |
| 563 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over␊ |
| 564 | # this default value␊ |
| 565 | export KBUILD_IMAGE ?= vmlinux␊ |
| 566 | ␊ |
| 567 | #␊ |
| 568 | # INSTALL_PATH specifies where to place the updated kernel and system map␊ |
| 569 | # images. Default is /boot, but you can set it to other values␊ |
| 570 | export␉INSTALL_PATH ?= /boot␊ |
| 571 | ␊ |
| 572 | #␊ |
| 573 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory␊ |
| 574 | # relocations required by build roots. This is not defined in the␊ |
| 575 | # makefile but the argument can be passed to make if needed.␊ |
| 576 | #␊ |
| 577 | ␊ |
| 578 | MODLIB␉= $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)␊ |
| 579 | export MODLIB␊ |
| 580 | ␊ |
| 581 | #␊ |
| 582 | # INSTALL_MOD_STRIP, if defined, will cause modules to be␊ |
| 583 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then␊ |
| 584 | # the default option --strip-debug will be used. Otherwise,␊ |
| 585 | # INSTALL_MOD_STRIP will used as the options to the strip command.␊ |
| 586 | ␊ |
| 587 | ifdef INSTALL_MOD_STRIP␊ |
| 588 | ifeq ($(INSTALL_MOD_STRIP),1)␊ |
| 589 | mod_strip_cmd = $(STRIP) --strip-debug␊ |
| 590 | else␊ |
| 591 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)␊ |
| 592 | endif # INSTALL_MOD_STRIP=1␊ |
| 593 | else␊ |
| 594 | mod_strip_cmd = true␊ |
| 595 | endif # INSTALL_MOD_STRIP␊ |
| 596 | export mod_strip_cmd␊ |
| 597 | ␊ |
| 598 | ␊ |
| 599 | ifeq ($(KBUILD_EXTMOD),)␊ |
| 600 | core-y␉␉+= kernel/ mm/ fs/ ipc/ security/ crypto/ block/␊ |
| 601 | ␊ |
| 602 | vmlinux-dirs␉:= $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \␊ |
| 603 | ␉␉ $(core-y) $(core-m) $(drivers-y) $(drivers-m) \␊ |
| 604 | ␉␉ $(net-y) $(net-m) $(libs-y) $(libs-m)))␊ |
| 605 | ␊ |
| 606 | vmlinux-alldirs␉:= $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \␊ |
| 607 | ␉␉ $(init-n) $(init-) \␊ |
| 608 | ␉␉ $(core-n) $(core-) $(drivers-n) $(drivers-) \␊ |
| 609 | ␉␉ $(net-n) $(net-) $(libs-n) $(libs-))))␊ |
| 610 | ␊ |
| 611 | init-y␉␉:= $(patsubst %/, %/built-in.o, $(init-y))␊ |
| 612 | core-y␉␉:= $(patsubst %/, %/built-in.o, $(core-y))␊ |
| 613 | drivers-y␉:= $(patsubst %/, %/built-in.o, $(drivers-y))␊ |
| 614 | net-y␉␉:= $(patsubst %/, %/built-in.o, $(net-y))␊ |
| 615 | libs-y1␉␉:= $(patsubst %/, %/lib.a, $(libs-y))␊ |
| 616 | libs-y2␉␉:= $(patsubst %/, %/built-in.o, $(libs-y))␊ |
| 617 | libs-y␉␉:= $(libs-y1) $(libs-y2)␊ |
| 618 | ␊ |
| 619 | # Build vmlinux␊ |
| 620 | # ---------------------------------------------------------------------------␊ |
| 621 | # vmlinux is built from the objects selected by $(vmlinux-init) and␊ |
| 622 | # $(vmlinux-main). Most are built-in.o files from top-level directories␊ |
| 623 | # in the kernel tree, others are specified in arch/$(ARCH)/Makefile.␊ |
| 624 | # Ordering when linking is important, and $(vmlinux-init) must be first.␊ |
| 625 | #␊ |
| 626 | # vmlinux␊ |
| 627 | # ^␊ |
| 628 | # |␊ |
| 629 | # +-< $(vmlinux-init)␊ |
| 630 | # | +--< init/version.o + more␊ |
| 631 | # |␊ |
| 632 | # +--< $(vmlinux-main)␊ |
| 633 | # | +--< driver/built-in.o mm/built-in.o + more␊ |
| 634 | # |␊ |
| 635 | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section)␊ |
| 636 | #␊ |
| 637 | # vmlinux version (uname -v) cannot be updated during normal␊ |
| 638 | # descending-into-subdirs phase since we do not yet know if we need to␊ |
| 639 | # update vmlinux.␊ |
| 640 | # Therefore this step is delayed until just before final link of vmlinux -␊ |
| 641 | # except in the kallsyms case where it is done just before adding the␊ |
| 642 | # symbols to the kernel.␊ |
| 643 | #␊ |
| 644 | # System.map is generated to document addresses of all kernel symbols␊ |
| 645 | ␊ |
| 646 | vmlinux-init := $(head-y) $(init-y)␊ |
| 647 | vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y)␊ |
| 648 | vmlinux-all := $(vmlinux-init) $(vmlinux-main)␊ |
| 649 | vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds␊ |
| 650 | export KBUILD_VMLINUX_OBJS := $(vmlinux-all)␊ |
| 651 | ␊ |
| 652 | # Rule to link vmlinux - also used during CONFIG_KALLSYMS␊ |
| 653 | # May be overridden by arch/$(ARCH)/Makefile␊ |
| 654 | quiet_cmd_vmlinux__ ?= LD $@␊ |
| 655 | cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \␊ |
| 656 | -T $(vmlinux-lds) $(vmlinux-init) \␊ |
| 657 | --start-group $(vmlinux-main) --end-group \␊ |
| 658 | $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^)␊ |
| 659 | ␊ |
| 660 | # Generate new vmlinux version␊ |
| 661 | quiet_cmd_vmlinux_version = GEN .version␊ |
| 662 | cmd_vmlinux_version = set -e; \␊ |
| 663 | ␉if [ ! -r .version ]; then␉␉␉\␊ |
| 664 | ␉ rm -f .version;␉␉␉␉\␊ |
| 665 | ␉ echo 1 >.version;␉␉␉␉\␊ |
| 666 | ␉else␉␉␉␉␉␉\␊ |
| 667 | ␉ mv .version .old_version;␉␉␉\␊ |
| 668 | ␉ expr 0$$(cat .old_version) + 1 >.version;␉\␊ |
| 669 | ␉fi;␉␉␉␉␉␉\␊ |
| 670 | ␉$(MAKE) $(build)=init␊ |
| 671 | ␊ |
| 672 | # Generate System.map␊ |
| 673 | quiet_cmd_sysmap = SYSMAP␊ |
| 674 | cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap␊ |
| 675 | ␊ |
| 676 | # Link of vmlinux␊ |
| 677 | # If CONFIG_KALLSYMS is set .version is already updated␊ |
| 678 | # Generate System.map and verify that the content is consistent␊ |
| 679 | # Use + in front of the vmlinux_version rule to silent warning with make -j2␊ |
| 680 | # First command is ':' to allow us to use + in front of the rule␊ |
| 681 | define rule_vmlinux__␊ |
| 682 | ␉:␊ |
| 683 | ␉$(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version))␊ |
| 684 | ␊ |
| 685 | ␉$(call cmd,vmlinux__)␊ |
| 686 | ␉$(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd␊ |
| 687 | ␊ |
| 688 | ␉$(Q)$(if $($(quiet)cmd_sysmap), \␊ |
| 689 | ␉ echo ' $($(quiet)cmd_sysmap) System.map' &&) \␊ |
| 690 | ␉$(cmd_sysmap) $@ System.map; \␊ |
| 691 | ␉if [ $$? -ne 0 ]; then \␊ |
| 692 | ␉␉rm -f $@; \␊ |
| 693 | ␉␉/bin/false; \␊ |
| 694 | ␉fi;␊ |
| 695 | ␉$(verify_kallsyms)␊ |
| 696 | endef␊ |
| 697 | ␊ |
| 698 | ␊ |
| 699 | ifdef CONFIG_KALLSYMS␊ |
| 700 | # Generate section listing all symbols and add it into vmlinux $(kallsyms.o)␊ |
| 701 | # It's a three stage process:␊ |
| 702 | # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is␊ |
| 703 | # empty␊ |
| 704 | # Running kallsyms on that gives us .tmp_kallsyms1.o with␊ |
| 705 | # the right size - vmlinux version (uname -v) is updated during this step␊ |
| 706 | # o .tmp_vmlinux2 now has a __kallsyms section of the right size,␊ |
| 707 | # but due to the added section, some addresses have shifted.␊ |
| 708 | # From here, we generate a correct .tmp_kallsyms2.o␊ |
| 709 | # o The correct .tmp_kallsyms2.o is linked into the final vmlinux.␊ |
| 710 | # o Verify that the System.map from vmlinux matches the map from␊ |
| 711 | # .tmp_vmlinux2, just in case we did not generate kallsyms correctly.␊ |
| 712 | # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using␊ |
| 713 | # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a␊ |
| 714 | # temporary bypass to allow the kernel to be built while the␊ |
| 715 | # maintainers work out what went wrong with kallsyms.␊ |
| 716 | ␊ |
| 717 | ifdef CONFIG_KALLSYMS_EXTRA_PASS␊ |
| 718 | last_kallsyms := 3␊ |
| 719 | else␊ |
| 720 | last_kallsyms := 2␊ |
| 721 | endif␊ |
| 722 | ␊ |
| 723 | kallsyms.o := .tmp_kallsyms$(last_kallsyms).o␊ |
| 724 | ␊ |
| 725 | define verify_kallsyms␊ |
| 726 | ␉$(Q)$(if $($(quiet)cmd_sysmap), \␊ |
| 727 | ␉ echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \␊ |
| 728 | ␉ $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map␊ |
| 729 | ␉$(Q)cmp -s System.map .tmp_System.map || \␊ |
| 730 | ␉␉(echo Inconsistent kallsyms data; \␊ |
| 731 | ␉␉ echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \␊ |
| 732 | ␉␉ rm .tmp_kallsyms* ; /bin/false )␊ |
| 733 | endef␊ |
| 734 | ␊ |
| 735 | # Update vmlinux version before link␊ |
| 736 | # Use + in front of this rule to silent warning about make -j1␊ |
| 737 | # First command is ':' to allow us to use + in front of this rule␊ |
| 738 | cmd_ksym_ld = $(cmd_vmlinux__)␊ |
| 739 | define rule_ksym_ld␊ |
| 740 | ␉: ␊ |
| 741 | ␉+$(call cmd,vmlinux_version)␊ |
| 742 | ␉$(call cmd,vmlinux__)␊ |
| 743 | ␉$(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd␊ |
| 744 | endef␊ |
| 745 | ␊ |
| 746 | # Generate .S file with all kernel symbols␊ |
| 747 | quiet_cmd_kallsyms = KSYM $@␊ |
| 748 | cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \␊ |
| 749 | $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@␊ |
| 750 | ␊ |
| 751 | .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE␊ |
| 752 | ␉$(call if_changed_dep,as_o_S)␊ |
| 753 | ␊ |
| 754 | .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS)␊ |
| 755 | ␉$(call cmd,kallsyms)␊ |
| 756 | ␊ |
| 757 | # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version␊ |
| 758 | .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE␊ |
| 759 | ␉$(call if_changed_rule,ksym_ld)␊ |
| 760 | ␊ |
| 761 | .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE␊ |
| 762 | ␉$(call if_changed,vmlinux__)␊ |
| 763 | ␊ |
| 764 | .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE␊ |
| 765 | ␉$(call if_changed,vmlinux__)␊ |
| 766 | ␊ |
| 767 | # Needs to visit scripts/ before $(KALLSYMS) can be used.␊ |
| 768 | $(KALLSYMS): scripts ;␊ |
| 769 | ␊ |
| 770 | # Generate some data for debugging strange kallsyms problems␊ |
| 771 | debug_kallsyms: .tmp_map$(last_kallsyms)␊ |
| 772 | ␊ |
| 773 | .tmp_map%: .tmp_vmlinux% FORCE␊ |
| 774 | ␉($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@␊ |
| 775 | ␊ |
| 776 | .tmp_map3: .tmp_map2␊ |
| 777 | ␊ |
| 778 | .tmp_map2: .tmp_map1␊ |
| 779 | ␊ |
| 780 | endif # ifdef CONFIG_KALLSYMS␊ |
| 781 | ␊ |
| 782 | # Do modpost on a prelinked vmlinux. The finally linked vmlinux has␊ |
| 783 | # relevant sections renamed as per the linker script.␊ |
| 784 | quiet_cmd_vmlinux-modpost = LD $@␊ |
| 785 | cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \␊ |
| 786 | ␉ $(vmlinux-init) --start-group $(vmlinux-main) --end-group \␊ |
| 787 | ␉ $(filter-out $(vmlinux-init) $(vmlinux-main) $(vmlinux-lds) FORCE ,$^)␊ |
| 788 | define rule_vmlinux-modpost␊ |
| 789 | ␉:␊ |
| 790 | ␉+$(call cmd,vmlinux-modpost)␊ |
| 791 | ␉$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@␊ |
| 792 | ␉$(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd␊ |
| 793 | endef␊ |
| 794 | ␊ |
| 795 | # vmlinux image - including updated kernel symbols␊ |
| 796 | vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) vmlinux.o FORCE␊ |
| 797 | ifdef CONFIG_HEADERS_CHECK␊ |
| 798 | ␉$(Q)$(MAKE) -f $(srctree)/Makefile headers_check␊ |
| 799 | endif␊ |
| 800 | ifdef CONFIG_SAMPLES␊ |
| 801 | ␉$(Q)$(MAKE) $(build)=samples␊ |
| 802 | endif␊ |
| 803 | ␉$(call vmlinux-modpost)␊ |
| 804 | ␉$(call if_changed_rule,vmlinux__)␊ |
| 805 | ␉$(Q)rm -f .old_version␊ |
| 806 | ␊ |
| 807 | vmlinux.o: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) FORCE␊ |
| 808 | ␉$(call if_changed_rule,vmlinux-modpost)␊ |
| 809 | ␊ |
| 810 | # The actual objects are generated when descending, ␊ |
| 811 | # make sure no implicit rule kicks in␊ |
| 812 | $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ;␊ |
| 813 | ␊ |
| 814 | # Handle descending into subdirectories listed in $(vmlinux-dirs)␊ |
| 815 | # Preset locale variables to speed up the build process. Limit locale␊ |
| 816 | # tweaks to this spot to avoid wrong language settings when running␊ |
| 817 | # make menuconfig etc.␊ |
| 818 | # Error messages still appears in the original language␊ |
| 819 | ␊ |
| 820 | PHONY += $(vmlinux-dirs)␊ |
| 821 | $(vmlinux-dirs): prepare scripts␊ |
| 822 | ␉$(Q)$(MAKE) $(build)=$@␊ |
| 823 | ␊ |
| 824 | # Build the kernel release string␊ |
| 825 | #␊ |
| 826 | # The KERNELRELEASE value built here is stored in the file␊ |
| 827 | # include/config/kernel.release, and is used when executing several␊ |
| 828 | # make targets, such as "make install" or "make modules_install."␊ |
| 829 | #␊ |
| 830 | # The eventual kernel release string consists of the following fields,␊ |
| 831 | # shown in a hierarchical format to show how smaller parts are concatenated␊ |
| 832 | # to form the larger and final value, with values coming from places like␊ |
| 833 | # the Makefile, kernel config options, make command line options and/or␊ |
| 834 | # SCM tag information.␊ |
| 835 | #␊ |
| 836 | #␉$(KERNELVERSION)␊ |
| 837 | #␉ $(VERSION)␉␉␉eg, 2␊ |
| 838 | #␉ $(PATCHLEVEL)␉␉␉eg, 6␊ |
| 839 | #␉ $(SUBLEVEL)␉␉␉eg, 18␊ |
| 840 | #␉ $(EXTRAVERSION)␉␉eg, -rc6␊ |
| 841 | #␉$(localver-full)␊ |
| 842 | #␉ $(localver)␊ |
| 843 | #␉ localversion*␉␉(files without backups, containing '~')␊ |
| 844 | #␉ $(CONFIG_LOCALVERSION)␉(from kernel config setting)␊ |
| 845 | #␉ $(localver-auto)␉␉(only if CONFIG_LOCALVERSION_AUTO is set)␊ |
| 846 | #␉ ./scripts/setlocalversion␉(SCM tag, if one exists)␊ |
| 847 | #␉ $(LOCALVERSION)␉␉(from make command line if provided)␊ |
| 848 | #␊ |
| 849 | # Note how the final $(localver-auto) string is included *only* if the␊ |
| 850 | # kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the␊ |
| 851 | # moment, only git is supported but other SCMs can edit the script␊ |
| 852 | # scripts/setlocalversion and add the appropriate checks as needed.␊ |
| 853 | ␊ |
| 854 | pattern = ".*/localversion[^~]*"␊ |
| 855 | string = $(shell cat /dev/null \␊ |
| 856 | ␉ `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`)␊ |
| 857 | ␊ |
| 858 | localver = $(subst $(space),, $(string) \␊ |
| 859 | ␉␉␉ $(patsubst "%",%,$(CONFIG_LOCALVERSION)))␊ |
| 860 | ␊ |
| 861 | # If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called␊ |
| 862 | # and if the SCM is know a tag from the SCM is appended.␊ |
| 863 | # The appended tag is determined by the SCM used.␊ |
| 864 | #␊ |
| 865 | # Currently, only git is supported.␊ |
| 866 | # Other SCMs can edit scripts/setlocalversion and add the appropriate␊ |
| 867 | # checks as needed.␊ |
| 868 | ifdef CONFIG_LOCALVERSION_AUTO␊ |
| 869 | ␉_localver-auto = $(shell $(CONFIG_SHELL) \␊ |
| 870 | ␉ $(srctree)/scripts/setlocalversion $(srctree))␊ |
| 871 | ␉localver-auto = $(LOCALVERSION)$(_localver-auto)␊ |
| 872 | endif␊ |
| 873 | ␊ |
| 874 | localver-full = $(localver)$(localver-auto)␊ |
| 875 | ␊ |
| 876 | # Store (new) KERNELRELASE string in include/config/kernel.release␊ |
| 877 | kernelrelease = $(KERNELVERSION)$(localver-full)␊ |
| 878 | include/config/kernel.release: include/config/auto.conf FORCE␊ |
| 879 | ␉$(Q)rm -f $@␊ |
| 880 | ␉$(Q)echo $(kernelrelease) > $@␊ |
| 881 | ␊ |
| 882 | ␊ |
| 883 | # Things we need to do before we recursively start building the kernel␊ |
| 884 | # or the modules are listed in "prepare".␊ |
| 885 | # A multi level approach is used. prepareN is processed before prepareN-1.␊ |
| 886 | # archprepare is used in arch Makefiles and when processed asm symlink,␊ |
| 887 | # version.h and scripts_basic is processed / created.␊ |
| 888 | ␊ |
| 889 | # Listed in dependency order␊ |
| 890 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3␊ |
| 891 | ␊ |
| 892 | # prepare3 is used to check if we are building in a separate output directory,␊ |
| 893 | # and if so do:␊ |
| 894 | # 1) Check that make has not been executed in the kernel src $(srctree)␊ |
| 895 | # 2) Create the include2 directory, used for the second asm symlink␊ |
| 896 | prepare3: include/config/kernel.release␊ |
| 897 | ifneq ($(KBUILD_SRC),)␊ |
| 898 | ␉@echo ' Using $(srctree) as source for kernel'␊ |
| 899 | ␉$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \␊ |
| 900 | ␉␉echo " $(srctree) is not clean, please run 'make mrproper'";\␊ |
| 901 | ␉␉echo " in the '$(srctree)' directory.";\␊ |
| 902 | ␉␉/bin/false; \␊ |
| 903 | ␉fi;␊ |
| 904 | ␉$(Q)if [ ! -d include2 ]; then mkdir -p include2; fi;␊ |
| 905 | ␉$(Q)ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm␊ |
| 906 | endif␊ |
| 907 | ␊ |
| 908 | # prepare2 creates a makefile if using a separate output directory␊ |
| 909 | prepare2: prepare3 outputmakefile␊ |
| 910 | ␊ |
| 911 | prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \␊ |
| 912 | include/asm include/config/auto.conf␊ |
| 913 | ␉$(cmd_crmodverdir)␊ |
| 914 | ␊ |
| 915 | archprepare: prepare1 scripts_basic␊ |
| 916 | ␊ |
| 917 | prepare0: archprepare FORCE␊ |
| 918 | ␉$(Q)$(MAKE) $(build)=.␊ |
| 919 | ␉$(Q)$(MAKE) $(build)=. missing-syscalls␊ |
| 920 | ␊ |
| 921 | # All the preparing..␊ |
| 922 | prepare: prepare0␊ |
| 923 | ␊ |
| 924 | # Leave this as default for preprocessing vmlinux.lds.S, which is now␊ |
| 925 | # done in arch/$(ARCH)/kernel/Makefile␊ |
| 926 | ␊ |
| 927 | export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)␊ |
| 928 | ␊ |
| 929 | # The asm symlink changes when $(ARCH) changes.␊ |
| 930 | # Detect this and ask user to run make mrproper␊ |
| 931 | ␊ |
| 932 | include/asm: FORCE␊ |
| 933 | ␉$(Q)set -e; asmlink=`readlink include/asm | cut -d '-' -f 2`; \␊ |
| 934 | ␉if [ -L include/asm ]; then \␊ |
| 935 | ␉␉if [ "$$asmlink" != "$(SRCARCH)" ]; then \␊ |
| 936 | ␉␉␉echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \␊ |
| 937 | ␉␉␉echo " set ARCH or save .config and run 'make mrproper' to fix it"; \␊ |
| 938 | ␉␉␉exit 1; \␊ |
| 939 | ␉␉fi; \␊ |
| 940 | ␉else \␊ |
| 941 | ␉␉echo ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \␊ |
| 942 | ␉␉if [ ! -d include ]; then \␊ |
| 943 | ␉␉␉mkdir -p include; \␊ |
| 944 | ␉␉fi; \␊ |
| 945 | ␉␉ln -fsn asm-$(SRCARCH) $@; \␊ |
| 946 | ␉fi␊ |
| 947 | ␊ |
| 948 | # Generate some files␊ |
| 949 | # ---------------------------------------------------------------------------␊ |
| 950 | ␊ |
| 951 | # KERNELRELEASE can change from a few different places, meaning version.h␊ |
| 952 | # needs to be updated, so this check is forced on all builds␊ |
| 953 | ␊ |
| 954 | uts_len := 64␊ |
| 955 | define filechk_utsrelease.h␊ |
| 956 | ␉if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \␊ |
| 957 | ␉ echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \␊ |
| 958 | ␉ exit 1; \␊ |
| 959 | ␉fi; \␊ |
| 960 | ␉(echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";)␊ |
| 961 | endef␊ |
| 962 | ␊ |
| 963 | define filechk_version.h␊ |
| 964 | ␉(echo \#define LINUX_VERSION_CODE $(shell \␊ |
| 965 | ␉expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \␊ |
| 966 | ␉echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)␊ |
| 967 | endef␊ |
| 968 | ␊ |
| 969 | include/linux/version.h: $(srctree)/Makefile FORCE␊ |
| 970 | ␉$(call filechk,version.h)␊ |
| 971 | ␊ |
| 972 | include/linux/utsrelease.h: include/config/kernel.release FORCE␊ |
| 973 | ␉$(call filechk,utsrelease.h)␊ |
| 974 | ␊ |
| 975 | # ---------------------------------------------------------------------------␊ |
| 976 | ␊ |
| 977 | PHONY += depend dep␊ |
| 978 | depend dep:␊ |
| 979 | ␉@echo '*** Warning: make $@ is unnecessary now.'␊ |
| 980 | ␊ |
| 981 | # ---------------------------------------------------------------------------␊ |
| 982 | # Kernel headers␊ |
| 983 | INSTALL_HDR_PATH=$(objtree)/usr␊ |
| 984 | export INSTALL_HDR_PATH␊ |
| 985 | ␊ |
| 986 | HDRFILTER=generic i386 x86_64␊ |
| 987 | HDRARCHES=$(filter-out $(HDRFILTER),$(patsubst $(srctree)/include/asm-%/Kbuild,%,$(wildcard $(srctree)/include/asm-*/Kbuild)))␊ |
| 988 | ␊ |
| 989 | PHONY += headers_install_all␊ |
| 990 | headers_install_all: include/linux/version.h scripts_basic FORCE␊ |
| 991 | ␉$(Q)$(MAKE) $(build)=scripts scripts/unifdef␊ |
| 992 | ␉$(Q)for arch in $(HDRARCHES); do \␊ |
| 993 | ␉ $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch ;\␊ |
| 994 | ␉ done␊ |
| 995 | ␊ |
| 996 | PHONY += headers_install␊ |
| 997 | headers_install: include/linux/version.h scripts_basic FORCE␊ |
| 998 | ␉@if [ ! -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \␊ |
| 999 | ␉ echo '*** Error: Headers not exportable for this architecture ($(SRCARCH))'; \␊ |
| 1000 | ␉ exit 1 ; fi␊ |
| 1001 | ␉$(Q)$(MAKE) $(build)=scripts scripts/unifdef␊ |
| 1002 | ␉$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst ARCH=$(SRCARCH) obj=include␊ |
| 1003 | ␊ |
| 1004 | PHONY += headers_check_all␊ |
| 1005 | headers_check_all: headers_install_all␊ |
| 1006 | ␉$(Q)for arch in $(HDRARCHES); do \␊ |
| 1007 | ␉ $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch HDRCHECK=1 ;\␊ |
| 1008 | ␉ done␊ |
| 1009 | ␊ |
| 1010 | PHONY += headers_check␊ |
| 1011 | headers_check: headers_install␊ |
| 1012 | ␉$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst ARCH=$(SRCARCH) obj=include HDRCHECK=1␊ |
| 1013 | ␊ |
| 1014 | # ---------------------------------------------------------------------------␊ |
| 1015 | # Modules␊ |
| 1016 | ␊ |
| 1017 | ifdef CONFIG_MODULES␊ |
| 1018 | ␊ |
| 1019 | # By default, build modules as well␊ |
| 1020 | ␊ |
| 1021 | all: modules␊ |
| 1022 | ␊ |
| 1023 | #␉Build modules␊ |
| 1024 | ␊ |
| 1025 | PHONY += modules␊ |
| 1026 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)␊ |
| 1027 | ␉@echo ' Building modules, stage 2.';␊ |
| 1028 | ␉$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost␊ |
| 1029 | ␊ |
| 1030 | ␊ |
| 1031 | # Target to prepare building external modules␊ |
| 1032 | PHONY += modules_prepare␊ |
| 1033 | modules_prepare: prepare scripts␊ |
| 1034 | ␊ |
| 1035 | # Target to install modules␊ |
| 1036 | PHONY += modules_install␊ |
| 1037 | modules_install: _modinst_ _modinst_post␊ |
| 1038 | ␊ |
| 1039 | PHONY += _modinst_␊ |
| 1040 | _modinst_:␊ |
| 1041 | ␉@if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \␊ |
| 1042 | ␉␉echo "Warning: you may need to install module-init-tools"; \␊ |
| 1043 | ␉␉echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\␊ |
| 1044 | ␉␉sleep 1; \␊ |
| 1045 | ␉fi␊ |
| 1046 | ␉@rm -rf $(MODLIB)/kernel␊ |
| 1047 | ␉@rm -f $(MODLIB)/source␊ |
| 1048 | ␉@mkdir -p $(MODLIB)/kernel␊ |
| 1049 | ␉@ln -s $(srctree) $(MODLIB)/source␊ |
| 1050 | ␉@if [ ! $(objtree) -ef $(MODLIB)/build ]; then \␊ |
| 1051 | ␉␉rm -f $(MODLIB)/build ; \␊ |
| 1052 | ␉␉ln -s $(objtree) $(MODLIB)/build ; \␊ |
| 1053 | ␉fi␊ |
| 1054 | ␉$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst␊ |
| 1055 | ␊ |
| 1056 | # This depmod is only for convenience to give the initial␊ |
| 1057 | # boot a modules.dep even before / is mounted read-write. However the␊ |
| 1058 | # boot script depmod is the master version.␊ |
| 1059 | PHONY += _modinst_post␊ |
| 1060 | _modinst_post: _modinst_␊ |
| 1061 | ␉$(call cmd,depmod)␊ |
| 1062 | ␊ |
| 1063 | else # CONFIG_MODULES␊ |
| 1064 | ␊ |
| 1065 | # Modules not configured␊ |
| 1066 | # ---------------------------------------------------------------------------␊ |
| 1067 | ␊ |
| 1068 | modules modules_install: FORCE␊ |
| 1069 | ␉@echo␊ |
| 1070 | ␉@echo "The present kernel configuration has modules disabled."␊ |
| 1071 | ␉@echo "Type 'make config' and enable loadable module support."␊ |
| 1072 | ␉@echo "Then build a kernel with module support enabled."␊ |
| 1073 | ␉@echo␊ |
| 1074 | ␉@exit 1␊ |
| 1075 | ␊ |
| 1076 | endif # CONFIG_MODULES␊ |
| 1077 | ␊ |
| 1078 | ###␊ |
| 1079 | # Cleaning is done on three levels.␊ |
| 1080 | # make clean Delete most generated files␊ |
| 1081 | # Leave enough to build external modules␊ |
| 1082 | # make mrproper Delete the current configuration, and all generated files␊ |
| 1083 | # make distclean Remove editor backup files, patch leftover files and the like␊ |
| 1084 | ␊ |
| 1085 | # Directories & files removed with 'make clean'␊ |
| 1086 | CLEAN_DIRS += $(MODVERDIR)␊ |
| 1087 | CLEAN_FILES +=␉vmlinux System.map \␊ |
| 1088 | .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map␊ |
| 1089 | ␊ |
| 1090 | # Directories & files removed with 'make mrproper'␊ |
| 1091 | MRPROPER_DIRS += include/config include2 usr/include␊ |
| 1092 | MRPROPER_FILES += .config .config.old include/asm .version .old_version \␊ |
| 1093 | include/linux/autoconf.h include/linux/version.h \␊ |
| 1094 | include/linux/utsrelease.h \␊ |
| 1095 | ␉␉ Module.symvers tags TAGS cscope*␊ |
| 1096 | ␊ |
| 1097 | # clean - Delete most, but leave enough to build external modules␊ |
| 1098 | #␊ |
| 1099 | clean: rm-dirs := $(CLEAN_DIRS)␊ |
| 1100 | clean: rm-files := $(CLEAN_FILES)␊ |
| 1101 | clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs))␊ |
| 1102 | ␊ |
| 1103 | PHONY += $(clean-dirs) clean archclean␊ |
| 1104 | $(clean-dirs):␊ |
| 1105 | ␉$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)␊ |
| 1106 | ␊ |
| 1107 | clean: archclean $(clean-dirs)␊ |
| 1108 | ␉$(call cmd,rmdirs)␊ |
| 1109 | ␉$(call cmd,rmfiles)␊ |
| 1110 | ␉@find . $(RCS_FIND_IGNORE) \␊ |
| 1111 | ␉␉\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \␊ |
| 1112 | ␉␉-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \␊ |
| 1113 | ␉␉-o -name '*.symtypes' \) \␊ |
| 1114 | ␉␉-type f -print | xargs rm -f␊ |
| 1115 | ␊ |
| 1116 | # mrproper - Delete all generated files, including .config␊ |
| 1117 | #␊ |
| 1118 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))␊ |
| 1119 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES))␊ |
| 1120 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)␊ |
| 1121 | ␊ |
| 1122 | PHONY += $(mrproper-dirs) mrproper archmrproper␊ |
| 1123 | $(mrproper-dirs):␊ |
| 1124 | ␉$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)␊ |
| 1125 | ␊ |
| 1126 | mrproper: clean archmrproper $(mrproper-dirs)␊ |
| 1127 | ␉$(call cmd,rmdirs)␊ |
| 1128 | ␉$(call cmd,rmfiles)␊ |
| 1129 | ␊ |
| 1130 | # distclean␊ |
| 1131 | #␊ |
| 1132 | PHONY += distclean␊ |
| 1133 | ␊ |
| 1134 | distclean: mrproper␊ |
| 1135 | ␉@find $(srctree) $(RCS_FIND_IGNORE) \␊ |
| 1136 | ␉␉\( -name '*.orig' -o -name '*.rej' -o -name '*~' \␊ |
| 1137 | ␉␉-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \␊ |
| 1138 | ␉␉-o -name '.*.rej' -o -size 0 \␊ |
| 1139 | ␉␉-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \␊ |
| 1140 | ␉␉-type f -print | xargs rm -f␊ |
| 1141 | ␊ |
| 1142 | ␊ |
| 1143 | # Packaging of the kernel to various formats␊ |
| 1144 | # ---------------------------------------------------------------------------␊ |
| 1145 | # rpm target kept for backward compatibility␊ |
| 1146 | package-dir␉:= $(srctree)/scripts/package␊ |
| 1147 | ␊ |
| 1148 | %pkg: include/config/kernel.release FORCE␊ |
| 1149 | ␉$(Q)$(MAKE) $(build)=$(package-dir) $@␊ |
| 1150 | rpm: include/config/kernel.release FORCE␊ |
| 1151 | ␉$(Q)$(MAKE) $(build)=$(package-dir) $@␊ |
| 1152 | ␊ |
| 1153 | ␊ |
| 1154 | # Brief documentation of the typical targets used␊ |
| 1155 | # ---------------------------------------------------------------------------␊ |
| 1156 | ␊ |
| 1157 | boards := $(wildcard $(srctree)/arch/$(ARCH)/configs/*_defconfig)␊ |
| 1158 | boards := $(notdir $(boards))␊ |
| 1159 | ␊ |
| 1160 | help:␊ |
| 1161 | ␉@echo 'Cleaning targets:'␊ |
| 1162 | ␉@echo ' clean␉␉ - Remove most generated files but keep the config and'␊ |
| 1163 | ␉@echo ' enough build support to build external modules'␊ |
| 1164 | ␉@echo ' mrproper␉ - Remove all generated files + config + various backup files'␊ |
| 1165 | ␉@echo ' distclean␉ - mrproper + remove editor backup and patch files'␊ |
| 1166 | ␉@echo ''␊ |
| 1167 | ␉@echo 'Configuration targets:'␊ |
| 1168 | ␉@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help␊ |
| 1169 | ␉@echo ''␊ |
| 1170 | ␉@echo 'Other generic targets:'␊ |
| 1171 | ␉@echo ' all␉␉ - Build all targets marked with [*]'␊ |
| 1172 | ␉@echo '* vmlinux␉ - Build the bare kernel'␊ |
| 1173 | ␉@echo '* modules␉ - Build all modules'␊ |
| 1174 | ␉@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'␊ |
| 1175 | ␉@echo ' dir/ - Build all files in dir and below'␊ |
| 1176 | ␉@echo ' dir/file.[ois] - Build specified target only'␊ |
| 1177 | ␉@echo ' dir/file.ko - Build module including final link'␊ |
| 1178 | ␉@echo ' rpm␉␉ - Build a kernel as an RPM package'␊ |
| 1179 | ␉@echo ' tags/TAGS␉ - Generate tags file for editors'␊ |
| 1180 | ␉@echo ' cscope␉ - Generate cscope index'␊ |
| 1181 | ␉@echo ' kernelrelease␉ - Output the release version string'␊ |
| 1182 | ␉@echo ' kernelversion␉ - Output the version stored in Makefile'␊ |
| 1183 | ␉@if [ -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \␊ |
| 1184 | ␉ echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \␊ |
| 1185 | ␉ echo ' (default: $(INSTALL_HDR_PATH))'; \␊ |
| 1186 | ␉ fi␊ |
| 1187 | ␉@echo ''␊ |
| 1188 | ␉@echo 'Static analysers'␊ |
| 1189 | ␉@echo ' checkstack - Generate a list of stack hogs'␊ |
| 1190 | ␉@echo ' namespacecheck - Name space analysis on compiled kernel'␊ |
| 1191 | ␉@echo ' export_report - List the usages of all exported symbols'␊ |
| 1192 | ␉@if [ -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \␊ |
| 1193 | ␉ echo ' headers_check - Sanity check on exported headers'; \␊ |
| 1194 | ␉ fi␊ |
| 1195 | ␉@echo ''␊ |
| 1196 | ␉@echo 'Kernel packaging:'␊ |
| 1197 | ␉@$(MAKE) $(build)=$(package-dir) help␊ |
| 1198 | ␉@echo ''␊ |
| 1199 | ␉@echo 'Documentation targets:'␊ |
| 1200 | ␉@$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp␊ |
| 1201 | ␉@echo ''␊ |
| 1202 | ␉@echo 'Architecture specific targets ($(ARCH)):'␊ |
| 1203 | ␉@$(if $(archhelp),$(archhelp),\␊ |
| 1204 | ␉␉echo ' No architecture specific help defined for $(ARCH)')␊ |
| 1205 | ␉@echo ''␊ |
| 1206 | ␉@$(if $(boards), \␊ |
| 1207 | ␉␉$(foreach b, $(boards), \␊ |
| 1208 | ␉␉printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \␊ |
| 1209 | ␉␉echo '')␊ |
| 1210 | ␊ |
| 1211 | ␉@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'␊ |
| 1212 | ␉@echo ' make V=2 [targets] 2 => give reason for rebuild of target'␊ |
| 1213 | ␉@echo ' make O=dir [targets] Locate all output files in "dir", including .config'␊ |
| 1214 | ␉@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'␊ |
| 1215 | ␉@echo ' make C=2 [targets] Force check of all c source with $$CHECK'␊ |
| 1216 | ␉@echo ''␊ |
| 1217 | ␉@echo 'Execute "make" or "make all" to build all targets marked with [*] '␊ |
| 1218 | ␉@echo 'For further info see the ./README file'␊ |
| 1219 | ␊ |
| 1220 | ␊ |
| 1221 | # Documentation targets␊ |
| 1222 | # ---------------------------------------------------------------------------␊ |
| 1223 | %docs: scripts_basic FORCE␊ |
| 1224 | ␉$(Q)$(MAKE) $(build)=Documentation/DocBook $@␊ |
| 1225 | ␊ |
| 1226 | else # KBUILD_EXTMOD␊ |
| 1227 | ␊ |
| 1228 | ###␊ |
| 1229 | # External module support.␊ |
| 1230 | # When building external modules the kernel used as basis is considered␊ |
| 1231 | # read-only, and no consistency checks are made and the make␊ |
| 1232 | # system is not used on the basis kernel. If updates are required␊ |
| 1233 | # in the basis kernel ordinary make commands (without M=...) must␊ |
| 1234 | # be used.␊ |
| 1235 | #␊ |
| 1236 | # The following are the only valid targets when building external␊ |
| 1237 | # modules.␊ |
| 1238 | # make M=dir clean Delete all automatically generated files␊ |
| 1239 | # make M=dir modules Make all modules in specified dir␊ |
| 1240 | # make M=dir␉ Same as 'make M=dir modules'␊ |
| 1241 | # make M=dir modules_install␊ |
| 1242 | # Install the modules built in the module directory␊ |
| 1243 | # Assumes install directory is already created␊ |
| 1244 | ␊ |
| 1245 | # We are always building modules␊ |
| 1246 | KBUILD_MODULES := 1␊ |
| 1247 | PHONY += crmodverdir␊ |
| 1248 | crmodverdir:␊ |
| 1249 | ␉$(cmd_crmodverdir)␊ |
| 1250 | ␊ |
| 1251 | PHONY += $(objtree)/Module.symvers␊ |
| 1252 | $(objtree)/Module.symvers:␊ |
| 1253 | ␉@test -e $(objtree)/Module.symvers || ( \␊ |
| 1254 | ␉echo; \␊ |
| 1255 | ␉echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \␊ |
| 1256 | ␉echo " is missing; modules will have no dependencies and modversions."; \␊ |
| 1257 | ␉echo )␊ |
| 1258 | ␊ |
| 1259 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))␊ |
| 1260 | PHONY += $(module-dirs) modules␊ |
| 1261 | $(module-dirs): crmodverdir $(objtree)/Module.symvers␊ |
| 1262 | ␉$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)␊ |
| 1263 | ␊ |
| 1264 | modules: $(module-dirs)␊ |
| 1265 | ␉@echo ' Building modules, stage 2.';␊ |
| 1266 | ␉$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost␊ |
| 1267 | ␊ |
| 1268 | PHONY += modules_install␊ |
| 1269 | modules_install: _emodinst_ _emodinst_post␊ |
| 1270 | ␊ |
| 1271 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)␊ |
| 1272 | PHONY += _emodinst_␊ |
| 1273 | _emodinst_:␊ |
| 1274 | ␉$(Q)mkdir -p $(MODLIB)/$(install-dir)␊ |
| 1275 | ␉$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst␊ |
| 1276 | ␊ |
| 1277 | PHONY += _emodinst_post␊ |
| 1278 | _emodinst_post: _emodinst_␊ |
| 1279 | ␉$(call cmd,depmod)␊ |
| 1280 | ␊ |
| 1281 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))␊ |
| 1282 | ␊ |
| 1283 | PHONY += $(clean-dirs) clean␊ |
| 1284 | $(clean-dirs):␊ |
| 1285 | ␉$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)␊ |
| 1286 | ␊ |
| 1287 | clean:␉rm-dirs := $(MODVERDIR)␊ |
| 1288 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers␊ |
| 1289 | clean: $(clean-dirs)␊ |
| 1290 | ␉$(call cmd,rmdirs)␊ |
| 1291 | ␉$(call cmd,rmfiles)␊ |
| 1292 | ␉@find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \␊ |
| 1293 | ␉␉\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \␊ |
| 1294 | ␉␉-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \␊ |
| 1295 | ␉␉-type f -print | xargs rm -f␊ |
| 1296 | ␊ |
| 1297 | help:␊ |
| 1298 | ␉@echo ' Building external modules.'␊ |
| 1299 | ␉@echo ' Syntax: make -C path/to/kernel/src M=$$PWD target'␊ |
| 1300 | ␉@echo ''␊ |
| 1301 | ␉@echo ' modules - default target, build the module(s)'␊ |
| 1302 | ␉@echo ' modules_install - install the module'␊ |
| 1303 | ␉@echo ' clean - remove generated files in module directory only'␊ |
| 1304 | ␉@echo ''␊ |
| 1305 | ␊ |
| 1306 | # Dummies...␊ |
| 1307 | PHONY += prepare scripts␊ |
| 1308 | prepare: ;␊ |
| 1309 | scripts: ;␊ |
| 1310 | endif # KBUILD_EXTMOD␊ |
| 1311 | ␊ |
| 1312 | # Generate tags for editors␊ |
| 1313 | # ---------------------------------------------------------------------------␊ |
| 1314 | ␊ |
| 1315 | #We want __srctree to totally vanish out when KBUILD_OUTPUT is not set␊ |
| 1316 | #(which is the most common case IMHO) to avoid unneeded clutter in the big tags file.␊ |
| 1317 | #Adding $(srctree) adds about 20M on i386 to the size of the output file!␊ |
| 1318 | ␊ |
| 1319 | ifeq ($(src),$(obj))␊ |
| 1320 | __srctree =␊ |
| 1321 | else␊ |
| 1322 | __srctree = $(srctree)/␊ |
| 1323 | endif␊ |
| 1324 | ␊ |
| 1325 | ifeq ($(ALLSOURCE_ARCHS),)␊ |
| 1326 | ifeq ($(ARCH),um)␊ |
| 1327 | ALLINCLUDE_ARCHS := $(ARCH) $(SUBARCH)␊ |
| 1328 | else␊ |
| 1329 | ALLINCLUDE_ARCHS := $(SRCARCH)␊ |
| 1330 | endif␊ |
| 1331 | else␊ |
| 1332 | #Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behaviour.␊ |
| 1333 | ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS)␊ |
| 1334 | endif␊ |
| 1335 | ␊ |
| 1336 | ALLSOURCE_ARCHS := $(SRCARCH)␊ |
| 1337 | ␊ |
| 1338 | define find-sources␊ |
| 1339 | ( for arch in $(ALLSOURCE_ARCHS) ; do \␊ |
| 1340 | ␉ find $(__srctree)arch/$${arch} $(RCS_FIND_IGNORE) \␊ |
| 1341 | ␉ -name $1 -print; \␊ |
| 1342 | ␉ done ; \␊ |
| 1343 | ␉ find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \␊ |
| 1344 | ␉ -name $1 -print; \␊ |
| 1345 | ␉ find $(__srctree)include $(RCS_FIND_IGNORE) \␊ |
| 1346 | ␉ \( -name config -o -name 'asm-*' \) -prune \␊ |
| 1347 | ␉ -o -name $1 -print; \␊ |
| 1348 | ␉ for arch in $(ALLINCLUDE_ARCHS) ; do \␊ |
| 1349 | ␉ find $(__srctree)include/asm-$${arch} $(RCS_FIND_IGNORE) \␊ |
| 1350 | ␉ -name $1 -print; \␊ |
| 1351 | ␉ done ; \␊ |
| 1352 | ␉ find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \␊ |
| 1353 | ␉ -name $1 -print; \␊ |
| 1354 | ␉ find $(__srctree) $(RCS_FIND_IGNORE) \␊ |
| 1355 | ␉ \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \␊ |
| 1356 | ␉ -name $1 -print; \␊ |
| 1357 | ␉ )␊ |
| 1358 | endef␊ |
| 1359 | ␊ |
| 1360 | define all-sources␊ |
| 1361 | ␉$(call find-sources,'*.[chS]')␊ |
| 1362 | endef␊ |
| 1363 | define all-kconfigs␊ |
| 1364 | ␉$(call find-sources,'Kconfig*')␊ |
| 1365 | endef␊ |
| 1366 | define all-defconfigs␊ |
| 1367 | ␉$(call find-sources,'defconfig')␊ |
| 1368 | endef␊ |
| 1369 | ␊ |
| 1370 | define xtags␊ |
| 1371 | ␉if $1 --version 2>&1 | grep -iq exuberant; then \␊ |
| 1372 | ␉ $(all-sources) | xargs $1 -a \␊ |
| 1373 | ␉␉-I __initdata,__exitdata,__acquires,__releases \␊ |
| 1374 | ␉␉-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \␊ |
| 1375 | ␉␉--extra=+f --c-kinds=+px \␊ |
| 1376 | ␉␉--regex-asm='/^ENTRY\(([^)]*)\).*/\1/'; \␊ |
| 1377 | ␉ $(all-kconfigs) | xargs $1 -a \␊ |
| 1378 | ␉␉--langdef=kconfig \␊ |
| 1379 | ␉␉--language-force=kconfig \␊ |
| 1380 | ␉␉--regex-kconfig='/^[[:blank:]]*config[[:blank:]]+([[:alnum:]_]+)/\1/'; \␊ |
| 1381 | ␉ $(all-defconfigs) | xargs -r $1 -a \␊ |
| 1382 | ␉␉--langdef=dotconfig \␊ |
| 1383 | ␉␉--language-force=dotconfig \␊ |
| 1384 | ␉␉--regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'; \␊ |
| 1385 | ␉elif $1 --version 2>&1 | grep -iq emacs; then \␊ |
| 1386 | ␉ $(all-sources) | xargs $1 -a; \␊ |
| 1387 | ␉ $(all-kconfigs) | xargs $1 -a \␊ |
| 1388 | ␉␉--regex='/^[ \t]*config[ \t]+\([a-zA-Z0-9_]+\)/\1/'; \␊ |
| 1389 | ␉ $(all-defconfigs) | xargs -r $1 -a \␊ |
| 1390 | ␉␉--regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'; \␊ |
| 1391 | ␉else \␊ |
| 1392 | ␉ $(all-sources) | xargs $1 -a; \␊ |
| 1393 | ␉fi␊ |
| 1394 | endef␊ |
| 1395 | ␊ |
| 1396 | quiet_cmd_cscope-file = FILELST cscope.files␊ |
| 1397 | cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files␊ |
| 1398 | ␊ |
| 1399 | quiet_cmd_cscope = MAKE cscope.out␊ |
| 1400 | cmd_cscope = cscope -b␊ |
| 1401 | ␊ |
| 1402 | cscope: FORCE␊ |
| 1403 | ␉$(call cmd,cscope-file)␊ |
| 1404 | ␉$(call cmd,cscope)␊ |
| 1405 | ␊ |
| 1406 | quiet_cmd_TAGS = MAKE $@␊ |
| 1407 | define cmd_TAGS␊ |
| 1408 | ␉rm -f $@; \␊ |
| 1409 | ␉$(call xtags,etags)␊ |
| 1410 | endef␊ |
| 1411 | ␊ |
| 1412 | TAGS: FORCE␊ |
| 1413 | ␉$(call cmd,TAGS)␊ |
| 1414 | ␊ |
| 1415 | quiet_cmd_tags = MAKE $@␊ |
| 1416 | define cmd_tags␊ |
| 1417 | ␉rm -f $@; \␊ |
| 1418 | ␉$(call xtags,ctags)␊ |
| 1419 | endef␊ |
| 1420 | ␊ |
| 1421 | tags: FORCE␊ |
| 1422 | ␉$(call cmd,tags)␊ |
| 1423 | ␊ |
| 1424 | ␊ |
| 1425 | # Scripts to check various things for consistency␊ |
| 1426 | # ---------------------------------------------------------------------------␊ |
| 1427 | ␊ |
| 1428 | includecheck:␊ |
| 1429 | ␉find * $(RCS_FIND_IGNORE) \␊ |
| 1430 | ␉␉-name '*.[hcS]' -type f -print | sort \␊ |
| 1431 | ␉␉| xargs $(PERL) -w scripts/checkincludes.pl␊ |
| 1432 | ␊ |
| 1433 | versioncheck:␊ |
| 1434 | ␉find * $(RCS_FIND_IGNORE) \␊ |
| 1435 | ␉␉-name '*.[hcS]' -type f -print | sort \␊ |
| 1436 | ␉␉| xargs $(PERL) -w scripts/checkversion.pl␊ |
| 1437 | ␊ |
| 1438 | namespacecheck:␊ |
| 1439 | ␉$(PERL) $(srctree)/scripts/namespace.pl␊ |
| 1440 | ␊ |
| 1441 | export_report:␊ |
| 1442 | ␉$(PERL) $(srctree)/scripts/export_report.pl␊ |
| 1443 | ␊ |
| 1444 | endif #ifeq ($(config-targets),1)␊ |
| 1445 | endif #ifeq ($(mixed-targets),1)␊ |
| 1446 | ␊ |
| 1447 | PHONY += checkstack kernelrelease kernelversion␊ |
| 1448 | ␊ |
| 1449 | # UML needs a little special treatment here. It wants to use the host␊ |
| 1450 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone␊ |
| 1451 | # else wants $(ARCH), including people doing cross-builds, which means␊ |
| 1452 | # that $(SUBARCH) doesn't work here.␊ |
| 1453 | ifeq ($(ARCH), um)␊ |
| 1454 | CHECKSTACK_ARCH := $(SUBARCH)␊ |
| 1455 | else␊ |
| 1456 | CHECKSTACK_ARCH := $(ARCH)␊ |
| 1457 | endif␊ |
| 1458 | checkstack:␊ |
| 1459 | ␉$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \␊ |
| 1460 | ␉$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)␊ |
| 1461 | ␊ |
| 1462 | kernelrelease:␊ |
| 1463 | ␉$(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \␊ |
| 1464 | ␉$(error kernelrelease not valid - run 'make prepare' to update it))␊ |
| 1465 | kernelversion:␊ |
| 1466 | ␉@echo $(KERNELVERSION)␊ |
| 1467 | ␊ |
| 1468 | # Single targets␊ |
| 1469 | # ---------------------------------------------------------------------------␊ |
| 1470 | # Single targets are compatible with:␊ |
| 1471 | # - build whith mixed source and output␊ |
| 1472 | # - build with separate output dir 'make O=...'␊ |
| 1473 | # - external modules␊ |
| 1474 | #␊ |
| 1475 | # target-dir => where to store outputfile␊ |
| 1476 | # build-dir => directory in kernel source tree to use␊ |
| 1477 | ␊ |
| 1478 | ifeq ($(KBUILD_EXTMOD),)␊ |
| 1479 | build-dir = $(patsubst %/,%,$(dir $@))␊ |
| 1480 | target-dir = $(dir $@)␊ |
| 1481 | else␊ |
| 1482 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))␊ |
| 1483 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))␊ |
| 1484 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))␊ |
| 1485 | endif␊ |
| 1486 | ␊ |
| 1487 | %.s: %.c prepare scripts FORCE␊ |
| 1488 | ␉$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)␊ |
| 1489 | %.i: %.c prepare scripts FORCE␊ |
| 1490 | ␉$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)␊ |
| 1491 | %.o: %.c prepare scripts FORCE␊ |
| 1492 | ␉$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)␊ |
| 1493 | %.lst: %.c prepare scripts FORCE␊ |
| 1494 | ␉$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)␊ |
| 1495 | %.s: %.S prepare scripts FORCE␊ |
| 1496 | ␉$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)␊ |
| 1497 | %.o: %.S prepare scripts FORCE␊ |
| 1498 | ␉$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)␊ |
| 1499 | %.symtypes: %.c prepare scripts FORCE␊ |
| 1500 | ␉$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)␊ |
| 1501 | ␊ |
| 1502 | # Modules␊ |
| 1503 | / %/: prepare scripts FORCE␊ |
| 1504 | ␉$(cmd_crmodverdir)␊ |
| 1505 | ␉$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \␊ |
| 1506 | ␉$(build)=$(build-dir)␊ |
| 1507 | %.ko: prepare scripts FORCE␊ |
| 1508 | ␉$(cmd_crmodverdir)␊ |
| 1509 | ␉$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \␊ |
| 1510 | ␉$(build)=$(build-dir) $(@:.ko=.o)␊ |
| 1511 | ␉$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost␊ |
| 1512 | ␊ |
| 1513 | # FIXME Should go into a make.lib or something ␊ |
| 1514 | # ===========================================================================␊ |
| 1515 | ␊ |
| 1516 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))␊ |
| 1517 | cmd_rmdirs = rm -rf $(rm-dirs)␊ |
| 1518 | ␊ |
| 1519 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))␊ |
| 1520 | cmd_rmfiles = rm -f $(rm-files)␊ |
| 1521 | ␊ |
| 1522 | # Run depmod only is we have System.map and depmod is executable␊ |
| 1523 | # and we build for the host arch␊ |
| 1524 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE)␊ |
| 1525 | cmd_depmod = \␊ |
| 1526 | ␉if [ -r System.map -a -x $(DEPMOD) ]; then \␊ |
| 1527 | ␉␉$(DEPMOD) -ae -F System.map \␊ |
| 1528 | ␉␉$(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) -r) \␊ |
| 1529 | ␉␉$(KERNELRELEASE); \␊ |
| 1530 | ␉fi␊ |
| 1531 | ␊ |
| 1532 | # Create temporary dir for module support files␊ |
| 1533 | # clean it up only when building all modules␊ |
| 1534 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \␊ |
| 1535 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*)␊ |
| 1536 | ␊ |
| 1537 | a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \␊ |
| 1538 | ␉ $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \␊ |
| 1539 | ␉ $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o)␊ |
| 1540 | ␊ |
| 1541 | quiet_cmd_as_o_S = AS $@␊ |
| 1542 | cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<␊ |
| 1543 | ␊ |
| 1544 | # read all saved command lines␊ |
| 1545 | ␊ |
| 1546 | targets := $(wildcard $(sort $(targets)))␊ |
| 1547 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))␊ |
| 1548 | ␊ |
| 1549 | ifneq ($(cmd_files),)␊ |
| 1550 | $(cmd_files): ;␉# Do not try to update included dependency files␊ |
| 1551 | include $(cmd_files)␊ |
| 1552 | endif␊ |
| 1553 | ␊ |
| 1554 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir␊ |
| 1555 | # Usage:␊ |
| 1556 | # $(Q)$(MAKE) $(clean)=dir␊ |
| 1557 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj␊ |
| 1558 | ␊ |
| 1559 | endif␉# skip-makefile␊ |
| 1560 | ␊ |
| 1561 | PHONY += FORCE␊ |
| 1562 | FORCE:␊ |
| 1563 | ␊ |
| 1564 | # Declare the contents of the .PHONY variable as phony. We keep that␊ |
| 1565 | # information in a variable se we can use it in if_changed and friends.␊ |
| 1566 | .PHONY: $(PHONY)␊ |
| 1567 | |
