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VERSION = 2 PATCHLEVEL = 6 |
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SUBLEVEL = 17 |
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EXTRAVERSION = |
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NAME=Crazed Snow-Weasel |
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# *DOCUMENTATION* # To see a list of typical targets execute "make help" # More info can be located in ./README # Comments in this file are targeted only to the developer, do not # expect to learn how to build the kernel reading this file. # Do not print "Entering directory ..." MAKEFLAGS += --no-print-directory # We are using a recursive build, so we need to do a little thinking # to get the ordering right. # # Most importantly: sub-Makefiles should only ever modify files in # their own directory. If in some directory we have a dependency on # a file in another dir (which doesn't happen often, but it's often # unavoidable when linking the built-in.o targets which finally # turn into vmlinux), we will call a sub make in that other dir, and # after that we are sure that everything which is in that other dir # is now up to date. # # The only cases where we need to modify files which have global # effects are thus separated out and done before the recursive # descending is started. They are now explicitly listed as the # prepare rule. # To put more focus on warnings, be less verbose as default # Use 'make V=1' to see the full commands ifdef V ifeq ("$(origin V)", "command line") KBUILD_VERBOSE = $(V) endif endif ifndef KBUILD_VERBOSE KBUILD_VERBOSE = 0 endif # Call sparse as part of compilation of C files # Use 'make C=1' to enable sparse checking ifdef C ifeq ("$(origin C)", "command line") KBUILD_CHECKSRC = $(C) endif endif ifndef KBUILD_CHECKSRC KBUILD_CHECKSRC = 0 endif # Use make M=dir to specify directory of external module to build # Old syntax make ... SUBDIRS=$PWD is still supported # Setting the environment variable KBUILD_EXTMOD take precedence ifdef SUBDIRS KBUILD_EXTMOD ?= $(SUBDIRS) endif ifdef M ifeq ("$(origin M)", "command line") KBUILD_EXTMOD := $(M) endif endif # kbuild supports saving output files in a separate directory. # To locate output files in a separate directory two syntaxes are supported. # In both cases the working directory must be the root of the kernel src. # 1) O= # Use "make O=dir/to/store/output/files/" |
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# |
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# 2) Set KBUILD_OUTPUT # Set the environment variable KBUILD_OUTPUT to point to the directory # where the output files shall be placed. # export KBUILD_OUTPUT=dir/to/store/output/files/ # make # # The O= assignment takes precedence over the KBUILD_OUTPUT environment # variable. # KBUILD_SRC is set on invocation of make in OBJ directory # KBUILD_SRC is not intended to be used by the regular user (for now) ifeq ($(KBUILD_SRC),) # OK, Make called in directory where kernel src resides # Do we want to locate output files in a separate directory? ifdef O ifeq ("$(origin O)", "command line") KBUILD_OUTPUT := $(O) endif endif # That's our default target when none is given on the command line |
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PHONY := _all |
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_all: ifneq ($(KBUILD_OUTPUT),) # Invoke a second make in the output directory, passing relevant variables # check that the output directory actually exists saved-output := $(KBUILD_OUTPUT) KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) $(if $(KBUILD_OUTPUT),, \ $(error output directory "$(saved-output)" does not exist)) |
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PHONY += $(MAKECMDGOALS) |
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$(filter-out _all,$(MAKECMDGOALS)) _all: |
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$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ KBUILD_SRC=$(CURDIR) \ |
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KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile $@ |
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# Leave processing to above invocation of make skip-makefile := 1 endif # ifneq ($(KBUILD_OUTPUT),) endif # ifeq ($(KBUILD_SRC),) # We process the rest of the Makefile if this is the final invocation of make ifeq ($(skip-makefile),) # If building an external module we do not care about the all: rule # but instead _all depend on modules |
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PHONY += all |
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ifeq ($(KBUILD_EXTMOD),) _all: all else _all: modules endif srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) TOPDIR := $(srctree) # FIXME - TOPDIR is obsolete, use srctree/objtree objtree := $(CURDIR) src := $(srctree) obj := $(objtree) |
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VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) |
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export srctree objtree VPATH TOPDIR |
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# SUBARCH tells the usermode build what the underlying arch is. That is set # first, and if a usermode build is happening, the "ARCH=um" on the command # line overrides the setting of ARCH below. If a native build is happening, # then ARCH is assigned, getting whatever value it gets normally, and # SUBARCH is subsequently ignored. SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ -e s/arm.*/arm/ -e s/sa110/arm/ \ |
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-e s/s390x/s390/ -e s/parisc64/parisc/ \ |
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-e s/ppc.*/powerpc/ -e s/mips.*/mips/ ) |
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# Cross compiling and selecting different set of gcc/bin-utils # --------------------------------------------------------------------------- # # When performing cross compilation for other architectures ARCH shall be set # to the target architecture. (See arch/* for the possibilities). # ARCH can be set during invocation of make: # make ARCH=ia64 # Another way is to have ARCH set in the environment. # The default ARCH is the host where make is executed. # CROSS_COMPILE specify the prefix used for all executables used # during compilation. Only gcc and related bin-utils executables # are prefixed with $(CROSS_COMPILE). # CROSS_COMPILE can be set on the command line # make CROSS_COMPILE=ia64-linux- # Alternatively CROSS_COMPILE can be set in the environment. # Default value for CROSS_COMPILE is not to prefix executables # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile ARCH ?= $(SUBARCH) CROSS_COMPILE ?= # Architecture as present in compile.h UTS_MACHINE := $(ARCH) |
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KCONFIG_CONFIG ?= .config |
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# SHELL used by kbuild CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ else if [ -x /bin/bash ]; then echo /bin/bash; \ else echo sh; fi ; fi) |
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HOSTCC = gcc HOSTCXX = g++ HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer HOSTCXXFLAGS = -O2 |
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# Decide whether to build built-in, modular, or both. # Normally, just do built-in. |
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KBUILD_MODULES := KBUILD_BUILTIN := 1 # If we have only "make modules", don't compile built-in objects. # When we're building modules with modversions, we need to consider # the built-in objects during the descend as well, in order to |
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# make sure the checksums are up to date before we record them. |
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ifeq ($(MAKECMDGOALS),modules) KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) endif # If we have "make <whatever> modules", compile modules # in addition to whatever we do anyway. # Just "make" or "make all" shall build modules as well ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) KBUILD_MODULES := 1 endif ifeq ($(MAKECMDGOALS),) KBUILD_MODULES := 1 endif |
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export KBUILD_MODULES KBUILD_BUILTIN |
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export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD # Beautify output # --------------------------------------------------------------------------- # # Normally, we echo the whole command before executing it. By making # that echo $($(quiet)$(cmd)), we now have the possibility to set # $(quiet) to choose other forms of output instead, e.g. # # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< # # If $(quiet) is empty, the whole command will be printed. # If it is set to "quiet_", only the short version will be printed. |
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# If it is set to "silent_", nothing will be printed at all, since |
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# the variable $(silent_cmd_cc_o_c) doesn't exist. # |
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# A simple variant is to prefix commands with $(Q) - that's useful |
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# for commands that shall be hidden in non-verbose mode. # # $(Q)ln $@ :< # # If KBUILD_VERBOSE equals 0 then the above command will be hidden. # If KBUILD_VERBOSE equals 1 then the above command is displayed. ifeq ($(KBUILD_VERBOSE),1) quiet = Q = else quiet=quiet_ Q = @ endif # If the user is running make -s (silent mode), suppress echoing of # commands ifneq ($(findstring s,$(MAKEFLAGS)),) quiet=silent_ endif export quiet Q KBUILD_VERBOSE |
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# Look for make include files relative to root of kernel src MAKEFLAGS += --include-dir=$(srctree) |
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# We need some generic definitions |
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include $(srctree)/scripts/Kbuild.include |
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# Do not use make's built-in rules and variables |
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# This increases performance and avoid hard-to-debug behavour |
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MAKEFLAGS += -rR |
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# Make variables (CC, etc...) AS = $(CROSS_COMPILE)as LD = $(CROSS_COMPILE)ld CC = $(CROSS_COMPILE)gcc CPP = $(CC) -E AR = $(CROSS_COMPILE)ar NM = $(CROSS_COMPILE)nm STRIP = $(CROSS_COMPILE)strip OBJCOPY = $(CROSS_COMPILE)objcopy OBJDUMP = $(CROSS_COMPILE)objdump AWK = awk GENKSYMS = scripts/genksyms/genksyms DEPMOD = /sbin/depmod KALLSYMS = scripts/kallsyms PERL = perl CHECK = sparse |
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CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise $(CF) |
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MODFLAGS = -DMODULE CFLAGS_MODULE = $(MODFLAGS) AFLAGS_MODULE = $(MODFLAGS) LDFLAGS_MODULE = -r CFLAGS_KERNEL = AFLAGS_KERNEL = # Use LINUXINCLUDE when you must reference the include/ directory. # Needed to be compatible with the O= option LINUXINCLUDE := -Iinclude \ |
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$(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \ |
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-include include/linux/autoconf.h |
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CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE) |
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CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ -fno-strict-aliasing -fno-common AFLAGS := -D__ASSEMBLY__ |
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# Read KERNELRELEASE from include/config/kernel.release (if it exists) KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) |
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KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) |
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export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION export ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS |
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export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS |
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export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE |
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export AFLAGS AFLAGS_KERNEL AFLAGS_MODULE # When compiling out-of-tree modules, put MODVERDIR in the module # tree rather than in the kernel tree. The kernel tree might # even be read-only. export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions |
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# Files to ignore in find ... statements |
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RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git |
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# =========================================================================== # Rules shared between *config targets and build targets # Basic helpers built in scripts/ |
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PHONY += scripts_basic |
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scripts_basic: $(Q)$(MAKE) $(build)=scripts/basic |
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# To avoid any implicit rule to kick in, define an empty command. scripts/basic/%: scripts_basic ; |
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PHONY += outputmakefile |
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# outputmakefile generates a Makefile in the output directory, if using a # separate output directory. This allows convenient use of make in the # output directory. |
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outputmakefile: |
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ifneq ($(KBUILD_SRC),) $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) endif |
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# To make sure we do not include .config for any of the *config targets # catch them early, and hand them over to scripts/kconfig/Makefile # It is allowed to specify more targets when calling make, including # mixing *config targets and build targets. |
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# For example 'make oldconfig all'. |
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# Detect when mixed targets is specified, and make a second invocation # of make so .config is not included in this case either (for *config). no-dot-config-targets := clean mrproper distclean \ |
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cscope TAGS tags help %docs check% \ kernelrelease kernelversion |
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config-targets := 0 mixed-targets := 0 dot-config := 1 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) dot-config := 0 endif endif ifeq ($(KBUILD_EXTMOD),) ifneq ($(filter config %config,$(MAKECMDGOALS)),) config-targets := 1 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) mixed-targets := 1 endif endif endif ifeq ($(mixed-targets),1) # =========================================================================== # We're called with mixed targets (*config and build targets). # Handle them one by one. %:: FORCE $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ else ifeq ($(config-targets),1) # =========================================================================== # *config targets only - make sure prerequisites are updated, and descend # in scripts/kconfig to make the *config target # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. # KBUILD_DEFCONFIG may point out an alternative default configuration # used for 'make defconfig' include $(srctree)/arch/$(ARCH)/Makefile export KBUILD_DEFCONFIG |
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config %config: scripts_basic outputmakefile FORCE |
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$(Q)mkdir -p include/linux include/config |
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$(Q)$(MAKE) $(build)=scripts/kconfig $@ else # =========================================================================== # Build targets only - this includes vmlinux, arch specific targets, clean # targets and others. In general all targets except *config targets. ifeq ($(KBUILD_EXTMOD),) # Additional helpers built in scripts/ # Carefully list dependencies so we do not try to build scripts twice |
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# in parallel |
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PHONY += scripts |
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scripts: scripts_basic include/config/auto.conf |
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$(Q)$(MAKE) $(build)=$(@) |
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# Objects we will link into vmlinux / subdirs we need to visit init-y := init/ drivers-y := drivers/ sound/ net-y := net/ libs-y := lib/ core-y := usr/ endif # KBUILD_EXTMOD ifeq ($(dot-config),1) # In this section, we need .config # Read in dependencies to all Kconfig* files, make sure to run # oldconfig if changes are detected. |
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-include include/config/auto.conf.cmd -include include/config/auto.conf |
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# To avoid any implicit rule to kick in, define an empty command |
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$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; |
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# If .config is newer than include/config/auto.conf, someone tinkered |
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# with it and forgot to run make oldconfig. |
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# if auto.conf.cmd is missing then we are probably in a cleaned tree so |
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# we execute the config step to be sure to catch updated Kconfig files |
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include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd |
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ifeq ($(KBUILD_EXTMOD),) |
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$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig else |
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$(error kernel configuration not valid - run 'make prepare' in $(srctree) to update it) endif |
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else # Dummy target needed, because used as prerequisite |
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include/config/auto.conf: ; |
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endif # The all: target is the default when no target is given on the # command line. # This allow a user to issue only 'make' to build a kernel including modules |
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# Defaults vmlinux but it is usually overridden in the arch makefile |
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all: vmlinux ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE CFLAGS += -Os else CFLAGS += -O2 endif |
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ifdef CONFIG_FRAME_POINTER |
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CFLAGS += -fno-omit-frame-pointer $(call cc-option,-fno-optimize-sibling-calls,) |
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else CFLAGS += -fomit-frame-pointer endif |
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ifdef CONFIG_UNWIND_INFO CFLAGS += -fasynchronous-unwind-tables endif |
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ifdef CONFIG_DEBUG_INFO CFLAGS += -g endif include $(srctree)/arch/$(ARCH)/Makefile |
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# arch Makefile may override CC so keep this after arch Makefile is included |
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NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) |
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CHECKFLAGS += $(NOSTDINC_FLAGS) |
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# warn about C99 declaration after statement CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) |
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# disable pointer signed / unsigned warnings in gcc 4.0 |
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CFLAGS += $(call cc-option,-Wno-pointer-sign,) # Default kernel image to build when no specific target is given. |
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# KBUILD_IMAGE may be overruled on the command line or |
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# set in the environment # Also any assignments in arch/$(ARCH)/Makefile take precedence over # this default value export KBUILD_IMAGE ?= vmlinux # # INSTALL_PATH specifies where to place the updated kernel and system map # images. Default is /boot, but you can set it to other values export INSTALL_PATH ?= /boot # # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory # relocations required by build roots. This is not defined in the |
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# makefile but the argument can be passed to make if needed. |
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# |
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MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
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export MODLIB |
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# # INSTALL_MOD_STRIP, if defined, will cause modules to be # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then # the default option --strip-debug will be used. Otherwise, # INSTALL_MOD_STRIP will used as the options to the strip command. ifdef INSTALL_MOD_STRIP ifeq ($(INSTALL_MOD_STRIP),1) mod_strip_cmd = $STRIP) --strip-debug else mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) endif # INSTALL_MOD_STRIP=1 else mod_strip_cmd = true endif # INSTALL_MOD_STRIP export mod_strip_cmd |
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ifeq ($(KBUILD_EXTMOD),) |
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core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ |
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vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ $(net-y) $(net-m) $(libs-y) $(libs-m))) vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ $(init-n) $(init-) \ $(core-n) $(core-) $(drivers-n) $(drivers-) \ $(net-n) $(net-) $(libs-n) $(libs-)))) init-y := $(patsubst %/, %/built-in.o, $(init-y)) core-y := $(patsubst %/, %/built-in.o, $(core-y)) drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) net-y := $(patsubst %/, %/built-in.o, $(net-y)) libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) libs-y := $(libs-y1) $(libs-y2) # Build vmlinux # --------------------------------------------------------------------------- |
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# vmlinux is built from the objects selected by $(vmlinux-init) and |
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# $(vmlinux-main). Most are built-in.o files from top-level directories # in the kernel tree, others are specified in arch/$(ARCH)Makefile. # Ordering when linking is important, and $(vmlinux-init) must be first. # # vmlinux # ^ # | # +-< $(vmlinux-init) # | +--< init/version.o + more # | # +--< $(vmlinux-main) # | +--< driver/built-in.o mm/built-in.o + more # | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) # # vmlinux version (uname -v) cannot be updated during normal # descending-into-subdirs phase since we do not yet know if we need to # update vmlinux. # Therefore this step is delayed until just before final link of vmlinux - # except in the kallsyms case where it is done just before adding the # symbols to the kernel. # # System.map is generated to document addresses of all kernel symbols vmlinux-init := $(head-y) $(init-y) vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) vmlinux-all := $(vmlinux-init) $(vmlinux-main) vmlinux-lds := arch/$(ARCH)/kernel/vmlinux.lds # Rule to link vmlinux - also used during CONFIG_KALLSYMS # May be overridden by arch/$(ARCH)/Makefile quiet_cmd_vmlinux__ ?= LD $@ cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ -T $(vmlinux-lds) $(vmlinux-init) \ --start-group $(vmlinux-main) --end-group \ $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) FORCE ,$^) # Generate new vmlinux version quiet_cmd_vmlinux_version = GEN .version cmd_vmlinux_version = set -e; \ |
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if [ ! -r .version ]; then \ rm -f .version; \ echo 1 >.version; \ else \ mv .version .old_version; \ expr 0$$(cat .old_version) + 1 >.version; \ fi; \ |
1da177e4c
|
581 582 583 |
$(MAKE) $(build)=init # Generate System.map |
070b98bfd
|
584 |
quiet_cmd_sysmap = SYSMAP |
1da177e4c
|
585 586 587 588 589 |
cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap # Link of vmlinux # If CONFIG_KALLSYMS is set .version is already updated # Generate System.map and verify that the content is consistent |
39ca371c4
|
590 591 |
# Use + in front of the vmlinux_version rule to silent warning with make -j2 # First command is ':' to allow us to use + in front of the rule |
1da177e4c
|
592 |
define rule_vmlinux__ |
39ca371c4
|
593 |
: |
1da177e4c
|
594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 |
$(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) $(call cmd,vmlinux__) $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd $(Q)$(if $($(quiet)cmd_sysmap), \ echo ' $($(quiet)cmd_sysmap) System.map' &&) \ $(cmd_sysmap) $@ System.map; \ if [ $$? -ne 0 ]; then \ rm -f $@; \ /bin/false; \ fi; $(verify_kallsyms) endef ifdef CONFIG_KALLSYMS # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) # It's a three stage process: # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is # empty # Running kallsyms on that gives us .tmp_kallsyms1.o with # the right size - vmlinux version (uname -v) is updated during this step # o .tmp_vmlinux2 now has a __kallsyms section of the right size, # but due to the added section, some addresses have shifted. # From here, we generate a correct .tmp_kallsyms2.o # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. # o Verify that the System.map from vmlinux matches the map from # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a # temporary bypass to allow the kernel to be built while the # maintainers work out what went wrong with kallsyms. ifdef CONFIG_KALLSYMS_EXTRA_PASS last_kallsyms := 3 else last_kallsyms := 2 endif kallsyms.o := .tmp_kallsyms$(last_kallsyms).o define verify_kallsyms $(Q)$(if $($(quiet)cmd_sysmap), \ echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map $(Q)cmp -s System.map .tmp_System.map || \ (echo Inconsistent kallsyms data; \ echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ rm .tmp_kallsyms* ; /bin/false ) endef # Update vmlinux version before link # Use + in front of this rule to silent warning about make -j1 |
72ba47c1b
|
648 |
# First command is ':' to allow us to use + in front of this rule |
1da177e4c
|
649 650 |
cmd_ksym_ld = $(cmd_vmlinux__) define rule_ksym_ld |
72ba47c1b
|
651 |
: |
1da177e4c
|
652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 |
+$(call cmd,vmlinux_version) $(call cmd,vmlinux__) $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd endef # Generate .S file with all kernel symbols quiet_cmd_kallsyms = KSYM $@ cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE $(call if_changed_dep,as_o_S) .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) $(call cmd,kallsyms) # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE $(call if_changed_rule,ksym_ld) .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE $(call if_changed,vmlinux__) .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE $(call if_changed,vmlinux__) # Needs to visit scripts/ before $(KALLSYMS) can be used. $(KALLSYMS): scripts ; |
33bc25eae
|
680 681 682 683 684 685 686 687 688 |
# Generate some data for debugging strange kallsyms problems debug_kallsyms: .tmp_map$(last_kallsyms) .tmp_map%: .tmp_vmlinux% FORCE ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ .tmp_map3: .tmp_map2 .tmp_map2: .tmp_map1 |
1da177e4c
|
689 690 691 692 693 |
endif # ifdef CONFIG_KALLSYMS # vmlinux image - including updated kernel symbols vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) FORCE $(call if_changed_rule,vmlinux__) |
4e25d8bb9
|
694 |
$(Q)rm -f .old_version |
1da177e4c
|
695 696 697 698 699 700 701 702 703 704 |
# The actual objects are generated when descending, # make sure no implicit rule kicks in $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; # Handle descending into subdirectories listed in $(vmlinux-dirs) # Preset locale variables to speed up the build process. Limit locale # tweaks to this spot to avoid wrong language settings when running # make menuconfig etc. # Error messages still appears in the original language |
4f1933620
|
705 |
PHONY += $(vmlinux-dirs) |
5bb782690
|
706 |
$(vmlinux-dirs): prepare scripts |
1da177e4c
|
707 |
$(Q)$(MAKE) $(build)=$@ |
cb58455c4
|
708 |
# Build the kernel release string |
f1d28fb04
|
709 |
# The KERNELRELEASE is stored in a file named include/config/kernel.release |
cb58455c4
|
710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 |
# to be used when executing for example make install or make modules_install # # Take the contents of any files called localversion* and the config # variable CONFIG_LOCALVERSION and append them to KERNELRELEASE. # LOCALVERSION from the command line override all of this nullstring := space := $(nullstring) # end of line ___localver = $(objtree)/localversion* $(srctree)/localversion* __localver = $(sort $(wildcard $(___localver))) # skip backup files (containing '~') _localver = $(foreach f, $(__localver), $(if $(findstring ~, $(f)),,$(f))) localver = $(subst $(space),, \ $(shell cat /dev/null $(_localver)) \ $(patsubst "%",%,$(CONFIG_LOCALVERSION))) |
070b98bfd
|
727 |
|
cb58455c4
|
728 729 |
# If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called # and if the SCM is know a tag from the SCM is appended. |
070b98bfd
|
730 |
# The appended tag is determined by the SCM used. |
cb58455c4
|
731 732 733 734 735 736 737 738 739 740 741 |
# # Currently, only git is supported. # Other SCMs can edit scripts/setlocalversion and add the appropriate # checks as needed. ifdef CONFIG_LOCALVERSION_AUTO _localver-auto = $(shell $(CONFIG_SHELL) \ $(srctree)/scripts/setlocalversion $(srctree)) localver-auto = $(LOCALVERSION)$(_localver-auto) endif localver-full = $(localver)$(localver-auto) |
f1d28fb04
|
742 |
# Store (new) KERNELRELASE string in include/config/kernel.release |
2244cbd8a
|
743 |
kernelrelease = $(KERNELVERSION)$(localver-full) |
f1d28fb04
|
744 |
include/config/kernel.release: include/config/auto.conf FORCE |
2244cbd8a
|
745 746 |
$(Q)rm -f $@ $(Q)echo $(kernelrelease) > $@ |
cb58455c4
|
747 |
|
1da177e4c
|
748 |
# Things we need to do before we recursively start building the kernel |
5bb782690
|
749 750 751 752 |
# or the modules are listed in "prepare". # A multi level approach is used. prepareN is processed before prepareN-1. # archprepare is used in arch Makefiles and when processed asm symlink, # version.h and scripts_basic is processed / created. |
1da177e4c
|
753 |
|
5bb782690
|
754 |
# Listed in dependency order |
4f1933620
|
755 |
PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 |
5bb782690
|
756 757 |
# prepare-all is deprecated, use prepare as valid replacement |
4f1933620
|
758 |
PHONY += prepare-all |
1da177e4c
|
759 |
|
86feeaa81
|
760 |
# prepare3 is used to check if we are building in a separate output directory, |
1da177e4c
|
761 762 763 |
# and if so do: # 1) Check that make has not been executed in the kernel src $(srctree) # 2) Create the include2 directory, used for the second asm symlink |
f1d28fb04
|
764 |
prepare3: include/config/kernel.release |
1da177e4c
|
765 766 |
ifneq ($(KBUILD_SRC),) @echo ' Using $(srctree) as source for kernel' |
c955ccafc
|
767 |
$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ |
1da177e4c
|
768 769 770 771 772 773 774 |
echo " $(srctree) is not clean, please run 'make mrproper'";\ echo " in the '$(srctree)' directory.";\ /bin/false; \ fi; $(Q)if [ ! -d include2 ]; then mkdir -p include2; fi; $(Q)ln -fsn $(srctree)/include/asm-$(ARCH) include2/asm endif |
86feeaa81
|
775 776 |
# prepare2 creates a makefile if using a separate output directory prepare2: prepare3 outputmakefile |
1da177e4c
|
777 |
|
86feeaa81
|
778 |
prepare1: prepare2 include/linux/version.h include/asm \ |
2e3646e51
|
779 |
include/config/auto.conf |
1da177e4c
|
780 |
ifneq ($(KBUILD_MODULES),) |
1da177e4c
|
781 |
$(Q)mkdir -p $(MODVERDIR) |
fca1dff21
|
782 |
$(Q)rm -f $(MODVERDIR)/* |
1da177e4c
|
783 |
endif |
5bb782690
|
784 785 786 |
archprepare: prepare1 scripts_basic prepare0: archprepare FORCE |
8d36a6236
|
787 |
$(Q)$(MAKE) $(build)=. |
86feeaa81
|
788 |
|
1da177e4c
|
789 |
# All the preparing.. |
5bb782690
|
790 |
prepare prepare-all: prepare0 |
1da177e4c
|
791 |
|
070b98bfd
|
792 793 |
# Leave this as default for preprocessing vmlinux.lds.S, which is now # done in arch/$(ARCH)/kernel/Makefile |
1da177e4c
|
794 795 |
export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) |
070b98bfd
|
796 797 798 |
# FIXME: The asm symlink changes when $(ARCH) changes. That's # hard to detect, but I suppose "make mrproper" is a good idea # before switching between archs anyway. |
1da177e4c
|
799 800 801 802 803 |
include/asm: @echo ' SYMLINK $@ -> include/asm-$(ARCH)' $(Q)if [ ! -d include ]; then mkdir -p include; fi; @ln -fsn asm-$(ARCH) $@ |
1da177e4c
|
804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 |
# Generate some files # --------------------------------------------------------------------------- # KERNELRELEASE can change from a few different places, meaning version.h # needs to be updated, so this check is forced on all builds uts_len := 64 define filechk_version.h if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ exit 1; \ fi; \ (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\"; \ echo \#define LINUX_VERSION_CODE `expr $(VERSION) \\* 65536 + $(PATCHLEVEL) \\* 256 + $(SUBLEVEL)`; \ echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))'; \ ) endef |
f1d28fb04
|
822 |
include/linux/version.h: $(srctree)/Makefile include/config/kernel.release FORCE |
1da177e4c
|
823 824 825 |
$(call filechk,version.h) # --------------------------------------------------------------------------- |
4f1933620
|
826 |
PHONY += depend dep |
1da177e4c
|
827 828 829 830 831 832 833 |
depend dep: @echo '*** Warning: make $@ is unnecessary now.' # --------------------------------------------------------------------------- # Modules ifdef CONFIG_MODULES |
070b98bfd
|
834 |
# By default, build modules as well |
1da177e4c
|
835 836 837 838 |
all: modules # Build modules |
4f1933620
|
839 |
PHONY += modules |
1da177e4c
|
840 841 842 843 844 845 |
modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) @echo ' Building modules, stage 2.'; $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost # Target to prepare building external modules |
4f1933620
|
846 |
PHONY += modules_prepare |
5bb782690
|
847 |
modules_prepare: prepare scripts |
1da177e4c
|
848 849 |
# Target to install modules |
4f1933620
|
850 |
PHONY += modules_install |
1da177e4c
|
851 |
modules_install: _modinst_ _modinst_post |
4f1933620
|
852 |
PHONY += _modinst_ |
1da177e4c
|
853 |
_modinst_: |
ce454d4d7
|
854 |
@if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ |
1da177e4c
|
855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 |
echo "Warning: you may need to install module-init-tools"; \ echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ sleep 1; \ fi @rm -rf $(MODLIB)/kernel @rm -f $(MODLIB)/source @mkdir -p $(MODLIB)/kernel @ln -s $(srctree) $(MODLIB)/source @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ rm -f $(MODLIB)/build ; \ ln -s $(objtree) $(MODLIB)/build ; \ fi $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modinst # If System.map exists, run depmod. This deliberately does not have a # dependency on System.map since that would run the dependency tree on # vmlinux. This depmod is only for convenience to give the initial # boot a modules.dep even before / is mounted read-write. However the # boot script depmod is the master version. ifeq "$(strip $(INSTALL_MOD_PATH))" "" depmod_opts := else depmod_opts := -b $(INSTALL_MOD_PATH) -r endif |
4f1933620
|
879 |
PHONY += _modinst_post |
1da177e4c
|
880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 |
_modinst_post: _modinst_ if [ -r System.map -a -x $(DEPMOD) ]; then $(DEPMOD) -ae -F System.map $(depmod_opts) $(KERNELRELEASE); fi else # CONFIG_MODULES # Modules not configured # --------------------------------------------------------------------------- modules modules_install: FORCE @echo @echo "The present kernel configuration has modules disabled." @echo "Type 'make config' and enable loadable module support." @echo "Then build a kernel with module support enabled." @echo @exit 1 endif # CONFIG_MODULES |
1da177e4c
|
897 898 899 900 901 902 903 904 905 906 907 908 909 910 |
### # Cleaning is done on three levels. # make clean Delete most generated files # Leave enough to build external modules # make mrproper Delete the current configuration, and all generated files # make distclean Remove editor backup files, patch leftover files and the like # Directories & files removed with 'make clean' CLEAN_DIRS += $(MODVERDIR) CLEAN_FILES += vmlinux System.map \ .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map # Directories & files removed with 'make mrproper' MRPROPER_DIRS += include/config include2 |
50aa88e28
|
911 |
MRPROPER_FILES += .config .config.old include/asm .version .old_version \ |
1da177e4c
|
912 |
include/linux/autoconf.h include/linux/version.h \ |
f1d28fb04
|
913 |
Module.symvers tags TAGS cscope* |
1da177e4c
|
914 915 916 917 918 |
# clean - Delete most, but leave enough to build external modules # clean: rm-dirs := $(CLEAN_DIRS) clean: rm-files := $(CLEAN_FILES) |
86feeaa81
|
919 |
clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs)) |
1da177e4c
|
920 |
|
4f1933620
|
921 |
PHONY += $(clean-dirs) clean archclean |
1da177e4c
|
922 923 924 925 926 927 928 |
$(clean-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) clean: archclean $(clean-dirs) $(call cmd,rmdirs) $(call cmd,rmfiles) @find . $(RCS_FIND_IGNORE) \ |
070b98bfd
|
929 |
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
15fde6751
|
930 931 |
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ -o -name '*.symtypes' \) \ |
1da177e4c
|
932 933 934 935 936 937 938 |
-type f -print | xargs rm -f # mrproper - Delete all generated files, including .config # mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) |
4f1933620
|
939 |
PHONY += $(mrproper-dirs) mrproper archmrproper |
1da177e4c
|
940 941 942 943 944 945 946 947 948 |
$(mrproper-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) mrproper: clean archmrproper $(mrproper-dirs) $(call cmd,rmdirs) $(call cmd,rmfiles) # distclean # |
4f1933620
|
949 |
PHONY += distclean |
1da177e4c
|
950 951 952 |
distclean: mrproper @find $(srctree) $(RCS_FIND_IGNORE) \ |
070b98bfd
|
953 |
\( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
1da177e4c
|
954 |
-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ |
070b98bfd
|
955 |
-o -name '.*.rej' -o -size 0 \ |
1da177e4c
|
956 957 958 959 960 961 962 963 |
-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ -type f -print | xargs rm -f # Packaging of the kernel to various formats # --------------------------------------------------------------------------- # rpm target kept for backward compatibility package-dir := $(srctree)/scripts/package |
031ecc6de
|
964 |
%pkg: include/config/kernel.release FORCE |
6c2133e11
|
965 |
$(Q)$(MAKE) $(build)=$(package-dir) $@ |
031ecc6de
|
966 |
rpm: include/config/kernel.release FORCE |
6c2133e11
|
967 |
$(Q)$(MAKE) $(build)=$(package-dir) $@ |
1da177e4c
|
968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 |
# Brief documentation of the typical targets used # --------------------------------------------------------------------------- boards := $(wildcard $(srctree)/arch/$(ARCH)/configs/*_defconfig) boards := $(notdir $(boards)) help: @echo 'Cleaning targets:' @echo ' clean - remove most generated files but keep the config' @echo ' mrproper - remove all generated files + config + various backup files' @echo '' @echo 'Configuration targets:' @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help @echo '' @echo 'Other generic targets:' @echo ' all - Build all targets marked with [*]' @echo '* vmlinux - Build the bare kernel' @echo '* modules - Build all modules' |
9cc5d74c8
|
988 |
@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
1da177e4c
|
989 990 |
@echo ' dir/ - Build all files in dir and below' @echo ' dir/file.[ois] - Build specified target only' |
155ad605b
|
991 |
@echo ' dir/file.ko - Build module including final link' |
1da177e4c
|
992 993 994 |
@echo ' rpm - Build a kernel as an RPM package' @echo ' tags/TAGS - Generate tags file for editors' @echo ' cscope - Generate cscope index' |
6d1288425
|
995 |
@echo ' kernelrelease - Output the release version string' |
cb58455c4
|
996 |
@echo ' kernelversion - Output the version stored in Makefile' |
1da177e4c
|
997 998 |
@echo '' @echo 'Static analysers' |
1da177e4c
|
999 1000 1001 1002 |
@echo ' checkstack - Generate a list of stack hogs' @echo ' namespacecheck - Name space analysis on compiled kernel' @echo '' @echo 'Kernel packaging:' |
6c2133e11
|
1003 |
@$(MAKE) $(build)=$(package-dir) help |
1da177e4c
|
1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 |
@echo '' @echo 'Documentation targets:' @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp @echo '' @echo 'Architecture specific targets ($(ARCH)):' @$(if $(archhelp),$(archhelp),\ echo ' No architecture specific help defined for $(ARCH)') @echo '' @$(if $(boards), \ $(foreach b, $(boards), \ printf " %-24s - Build for %s\ " $(b) $(subst _defconfig,,$(b));) \ echo '') @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' @echo ' make O=dir [targets] Locate all output files in "dir", including .config' @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse)' @echo ' make C=2 [targets] Force check of all c source with $$CHECK (sparse)' @echo '' @echo 'Execute "make" or "make all" to build all targets marked with [*] ' @echo 'For further info see the ./README file' # Documentation targets # --------------------------------------------------------------------------- %docs: scripts_basic FORCE $(Q)$(MAKE) $(build)=Documentation/DocBook $@ else # KBUILD_EXTMOD ### # External module support. # When building external modules the kernel used as basis is considered # read-only, and no consistency checks are made and the make # system is not used on the basis kernel. If updates are required # in the basis kernel ordinary make commands (without M=...) must # be used. # # The following are the only valid targets when building external # modules. # make M=dir clean Delete all automatically generated files # make M=dir modules Make all modules in specified dir # make M=dir Same as 'make M=dir modules' # make M=dir modules_install |
070b98bfd
|
1048 |
# Install the modules built in the module directory |
1da177e4c
|
1049 1050 1051 1052 |
# Assumes install directory is already created # We are always building modules KBUILD_MODULES := 1 |
4f1933620
|
1053 |
PHONY += crmodverdir |
1da177e4c
|
1054 1055 |
crmodverdir: $(Q)mkdir -p $(MODVERDIR) |
fca1dff21
|
1056 |
$(Q)rm -f $(MODVERDIR)/* |
1da177e4c
|
1057 |
|
4f1933620
|
1058 |
PHONY += $(objtree)/Module.symvers |
1da177e4c
|
1059 1060 1061 1062 1063 1064 1065 1066 |
$(objtree)/Module.symvers: @test -e $(objtree)/Module.symvers || ( \ echo; \ echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ echo " is missing; modules will have no dependencies and modversions."; \ echo ) module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) |
4f1933620
|
1067 |
PHONY += $(module-dirs) modules |
1da177e4c
|
1068 1069 1070 1071 1072 1073 |
$(module-dirs): crmodverdir $(objtree)/Module.symvers $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) modules: $(module-dirs) @echo ' Building modules, stage 2.'; $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost |
4f1933620
|
1074 |
PHONY += modules_install |
a67dc21a3
|
1075 |
modules_install: _emodinst_ _emodinst_post |
e63046630
|
1076 |
|
4f1933620
|
1077 1078 |
install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) PHONY += _emodinst_ |
a67dc21a3
|
1079 |
_emodinst_: |
a67dc21a3
|
1080 |
$(Q)mkdir -p $(MODLIB)/$(install-dir) |
1da177e4c
|
1081 |
$(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modinst |
a67dc21a3
|
1082 1083 1084 1085 1086 1087 1088 1089 |
# Run depmod only is we have System.map and depmod is executable quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) cmd_depmod = if [ -r System.map -a -x $(DEPMOD) ]; then \ $(DEPMOD) -ae -F System.map \ $(if $(strip $(INSTALL_MOD_PATH)), \ -b $(INSTALL_MOD_PATH) -r) \ $(KERNELRELEASE); \ fi |
4f1933620
|
1090 |
PHONY += _emodinst_post |
a67dc21a3
|
1091 1092 |
_emodinst_post: _emodinst_ $(call cmd,depmod) |
1da177e4c
|
1093 |
clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) |
4f1933620
|
1094 |
PHONY += $(clean-dirs) clean |
1da177e4c
|
1095 1096 1097 1098 1099 1100 1101 |
$(clean-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) clean: rm-dirs := $(MODVERDIR) clean: $(clean-dirs) $(call cmd,rmdirs) @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \ |
070b98bfd
|
1102 |
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
1da177e4c
|
1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 |
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ -type f -print | xargs rm -f help: @echo ' Building external modules.' @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' @echo '' @echo ' modules - default target, build the module(s)' @echo ' modules_install - install the module' @echo ' clean - remove generated files in module directory only' @echo '' |
06300b21f
|
1114 1115 |
# Dummies... |
4f1933620
|
1116 |
PHONY += prepare scripts |
06300b21f
|
1117 1118 |
prepare: ; scripts: ; |
1da177e4c
|
1119 1120 1121 1122 1123 1124 1125 1126 |
endif # KBUILD_EXTMOD # Generate tags for editors # --------------------------------------------------------------------------- #We want __srctree to totally vanish out when KBUILD_OUTPUT is not set #(which is the most common case IMHO) to avoid unneeded clutter in the big tags file. #Adding $(srctree) adds about 20M on i386 to the size of the output file! |
f182ae626
|
1127 |
ifeq ($(src),$(obj)) |
1da177e4c
|
1128 1129 1130 1131 |
__srctree = else __srctree = $(srctree)/ endif |
2ab23c95a
|
1132 1133 1134 1135 1136 1137 1138 |
ifeq ($(ALLSOURCE_ARCHS),) ifeq ($(ARCH),um) ALLINCLUDE_ARCHS := $(ARCH) $(SUBARCH) else ALLINCLUDE_ARCHS := $(ARCH) endif else |
070b98bfd
|
1139 |
#Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behavour. |
2ab23c95a
|
1140 1141 |
ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS) endif |
a0674e88d
|
1142 |
ALLSOURCE_ARCHS := $(ARCH) |
e838db685
|
1143 1144 |
define find-sources ( find $(__srctree) $(RCS_FIND_IGNORE) \ |
1da177e4c
|
1145 |
\( -name include -o -name arch \) -prune -o \ |
e838db685
|
1146 |
-name $1 -print; \ |
a0674e88d
|
1147 1148 |
for ARCH in $(ALLSOURCE_ARCHS) ; do \ find $(__srctree)arch/$${ARCH} $(RCS_FIND_IGNORE) \ |
e838db685
|
1149 |
-name $1 -print; \ |
a0674e88d
|
1150 |
done ; \ |
1da177e4c
|
1151 |
find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \ |
e838db685
|
1152 |
-name $1 -print; \ |
1da177e4c
|
1153 1154 |
find $(__srctree)include $(RCS_FIND_IGNORE) \ \( -name config -o -name 'asm-*' \) -prune \ |
e838db685
|
1155 |
-o -name $1 -print; \ |
2ab23c95a
|
1156 |
for ARCH in $(ALLINCLUDE_ARCHS) ; do \ |
a0674e88d
|
1157 |
find $(__srctree)include/asm-$${ARCH} $(RCS_FIND_IGNORE) \ |
e838db685
|
1158 |
-name $1 -print; \ |
a0674e88d
|
1159 |
done ; \ |
1da177e4c
|
1160 |
find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \ |
e838db685
|
1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 |
-name $1 -print ) endef define all-sources $(call find-sources,'*.[chS]') endef define all-kconfigs $(call find-sources,'Kconfig*') endef define all-defconfigs $(call find-sources,'defconfig') |
1da177e4c
|
1172 1173 1174 |
endef quiet_cmd_cscope-file = FILELST cscope.files |
acbef459a
|
1175 |
cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files |
1da177e4c
|
1176 1177 |
quiet_cmd_cscope = MAKE cscope.out |
acbef459a
|
1178 |
cmd_cscope = cscope -b |
1da177e4c
|
1179 1180 1181 1182 1183 1184 |
cscope: FORCE $(call cmd,cscope-file) $(call cmd,cscope) quiet_cmd_TAGS = MAKE $@ |
66d609ec8
|
1185 1186 |
define cmd_TAGS rm -f $@; \ |
54e08a239
|
1187 1188 1189 1190 |
ETAGSF=`etags --version | grep -i exuberant >/dev/null && \ echo "-I __initdata,__exitdata,__acquires,__releases \ -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \ --extra=+f --c-kinds=+px"`; \ |
e838db685
|
1191 1192 1193 1194 1195 1196 1197 |
$(all-sources) | xargs etags $$ETAGSF -a; \ if test "x$$ETAGSF" = x; then \ $(all-kconfigs) | xargs etags -a \ --regex='/^config[ \t]+\([a-zA-Z0-9_]+\)/\1/'; \ $(all-defconfigs) | xargs etags -a \ --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'; \ fi |
66d609ec8
|
1198 1199 1200 1201 |
endef TAGS: FORCE $(call cmd,TAGS) |
1da177e4c
|
1202 |
|
1da177e4c
|
1203 1204 1205 1206 |
quiet_cmd_tags = MAKE $@ define cmd_tags rm -f $@; \ |
54e08a239
|
1207 1208 1209 1210 |
CTAGSF=`ctags --version | grep -i exuberant >/dev/null && \ echo "-I __initdata,__exitdata,__acquires,__releases \ -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \ --extra=+f --c-kinds=+px"`; \ |
f6333eb4e
|
1211 |
$(all-sources) | xargs ctags $$CTAGSF -a |
1da177e4c
|
1212 |
endef |
1da177e4c
|
1213 1214 1215 1216 1217 1218 |
tags: FORCE $(call cmd,tags) # Scripts to check various things for consistency # --------------------------------------------------------------------------- |
1da177e4c
|
1219 1220 1221 1222 1223 1224 1225 1226 1227 |
includecheck: find * $(RCS_FIND_IGNORE) \ -name '*.[hcS]' -type f -print | sort \ | xargs $(PERL) -w scripts/checkincludes.pl versioncheck: find * $(RCS_FIND_IGNORE) \ -name '*.[hcS]' -type f -print | sort \ | xargs $(PERL) -w scripts/checkversion.pl |
1da177e4c
|
1228 1229 1230 1231 1232 |
namespacecheck: $(PERL) $(srctree)/scripts/namespace.pl endif #ifeq ($(config-targets),1) endif #ifeq ($(mixed-targets),1) |
c30a02e02
|
1233 |
PHONY += checkstack kernelrelease kernelversion |
1da177e4c
|
1234 1235 1236 1237 1238 |
checkstack: $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ $(PERL) $(src)/scripts/checkstack.pl $(ARCH) kernelrelease: |
f1d28fb04
|
1239 1240 |
$(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \ $(error kernelrelease not valid - run 'make prepare' to update it)) |
cb58455c4
|
1241 |
kernelversion: |
2244cbd8a
|
1242 |
@echo $(KERNELVERSION) |
1da177e4c
|
1243 |
|
06300b21f
|
1244 1245 |
# Single targets # --------------------------------------------------------------------------- |
bc2546a67
|
1246 1247 1248 1249 1250 1251 1252 1253 1254 |
# Single targets are compatible with: # - build whith mixed source and output # - build with separate output dir 'make O=...' # - external modules # # target-dir => where to store outputfile # build-dir => directory in kernel source tree to use ifeq ($(KBUILD_EXTMOD),) |
aa360879e
|
1255 |
build-dir = $(patsubst %/,%,$(dir $@)) |
bc2546a67
|
1256 1257 1258 1259 1260 1261 |
target-dir = $(dir $@) else zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) endif |
f6ecebd65
|
1262 |
%.s: %.c prepare scripts FORCE |
bc2546a67
|
1263 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1264 |
%.i: %.c prepare scripts FORCE |
bc2546a67
|
1265 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1266 |
%.o: %.c prepare scripts FORCE |
bc2546a67
|
1267 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1268 |
%.lst: %.c prepare scripts FORCE |
bc2546a67
|
1269 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1270 |
%.s: %.S prepare scripts FORCE |
bc2546a67
|
1271 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1272 |
%.o: %.S prepare scripts FORCE |
bc2546a67
|
1273 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
15fde6751
|
1274 1275 |
%.symtypes: %.c prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
06300b21f
|
1276 |
|
bc2546a67
|
1277 1278 |
# Modules / %/: prepare scripts FORCE |
06300b21f
|
1279 |
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
bc2546a67
|
1280 1281 |
$(build)=$(build-dir) %.ko: prepare scripts FORCE |
06300b21f
|
1282 |
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
bc2546a67
|
1283 |
$(build)=$(build-dir) $(@:.ko=.o) |
06300b21f
|
1284 |
$(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost |
1da177e4c
|
1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 |
# FIXME Should go into a make.lib or something # =========================================================================== quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) cmd_rmdirs = rm -rf $(rm-dirs) quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) cmd_rmfiles = rm -f $(rm-files) a_flags = -Wp,-MD,$(depfile) $(AFLAGS) $(AFLAGS_KERNEL) \ $(NOSTDINC_FLAGS) $(CPPFLAGS) \ $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(*F).o) quiet_cmd_as_o_S = AS $@ cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< # read all saved command lines targets := $(wildcard $(sort $(targets))) cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) ifneq ($(cmd_files),) $(cmd_files): ; # Do not try to update included dependency files include $(cmd_files) endif |
1da177e4c
|
1311 1312 1313 1314 |
# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir # Usage: # $(Q)$(MAKE) $(clean)=dir clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj |
1da177e4c
|
1315 |
endif # skip-makefile |
4f1933620
|
1316 |
PHONY += FORCE |
1da177e4c
|
1317 |
FORCE: |
4f1933620
|
1318 1319 1320 1321 1322 |
# Declare the contents of the .PHONY variable as phony. We keep that # information in a variable se we can use it in if_changed and friends. .PHONY: $(PHONY) |