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VERSION = 2 PATCHLEVEL = 6 |
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SUBLEVEL = 26 |
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EXTRAVERSION = |
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NAME = Rotary Wombat |
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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. |
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# Do not: # o use make's built-in rules and variables |
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# (this increases performance and avoids hard-to-debug behaviour); |
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# o print "Entering directory ..."; MAKEFLAGS += -rR --no-print-directory |
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# 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 = $(V) endif endif ifndef KBUILD_VERBOSE KBUILD_VERBOSE = 0 endif |
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# Call a source code checker (by default, "sparse") as part of the # C compilation. # # Use 'make C=1' to enable checking of only re-compiled files. # Use 'make C=2' to enable checking of *all* source files, regardless # of whether they are re-compiled or not. # # See the file "Documentation/sparse.txt" for more details, including # where to get the "sparse" utility. |
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ifdef C ifeq ("$(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: |
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# Cancel implicit rules on top Makefile $(CURDIR)/Makefile Makefile: ; |
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ifneq ($(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 += $(MAKECMDGOALS) sub-make |
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$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make |
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$(Q)@: sub-make: FORCE |
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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 \ $(filter-out _all sub-make,$(MAKECMDGOALS)) |
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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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-e s/sh.*/sh/ ) |
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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 |
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export KBUILD_BUILDHOST := $(SUBARCH) |
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ARCH ?= $(SUBARCH) CROSS_COMPILE ?= # Architecture as present in compile.h |
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UTS_MACHINE := $(ARCH) SRCARCH := $(ARCH) |
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# Additional ARCH settings for x86 ifeq ($(ARCH),i386) SRCARCH := x86 endif ifeq ($(ARCH),x86_64) SRCARCH := x86 endif |
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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 (do not try to remake the file). $(srctree)/scripts/Kbuild.include: ; |
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include $(srctree)/scripts/Kbuild.include |
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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 = $(MODFLAGS) |
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LDFLAGS_MODULE = |
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CFLAGS_KERNEL = AFLAGS_KERNEL = # Use LINUXINCLUDE when you must reference the include/ directory. # Needed to be compatible with the O= option LINUXINCLUDE := -Iinclude \ |
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$(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \ |
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-include include/linux/autoconf.h |
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KBUILD_CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE) |
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KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ |
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-fno-strict-aliasing -fno-common \ -Werror-implicit-function-declaration |
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KBUILD_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 |
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export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC |
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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 KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS |
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export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE |
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export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE |
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# 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) $(PATCHLEVEL) endif |
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# To make sure we do not include .config for any of the *config targets # catch them early, and hand them over to scripts/kconfig/Makefile # It is allowed to specify more targets when calling make, including # mixing *config targets and build targets. |
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# For example 'make oldconfig all'. |
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# Detect when mixed targets is specified, and make a second invocation # of make so .config is not included in this case either (for *config). |
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no-dot-config-targets := clean mrproper distclean \ |
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cscope TAGS tags help %docs check% \ |
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include/linux/version.h headers_% \ kernelrelease kernelversion |
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config-targets := 0 mixed-targets := 0 dot-config := 1 ifneq ($(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' |
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include $(srctree)/arch/$(SRCARCH)/Makefile |
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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/ |
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drivers-y := drivers/ sound/ firmware/ |
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net-y := net/ libs-y := lib/ core-y := usr/ endif # KBUILD_EXTMOD ifeq ($(dot-config),1) |
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# Read in config -include include/config/auto.conf |
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ifeq ($(KBUILD_EXTMOD),) |
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# 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 |
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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: $(KCONFIG_CONFIG) include/config/auto.conf.cmd |
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$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig else |
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# external modules needs include/linux/autoconf.h and include/config/auto.conf # but do not care if they are up-to-date. Use auto.conf to trigger the test PHONY += include/config/auto.conf include/config/auto.conf: $(Q)test -e include/linux/autoconf.h -a -e $@ || ( \ echo; \ echo " ERROR: Kernel configuration is invalid."; \ echo " include/linux/autoconf.h or $@ are missing."; \ echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ echo; \ /bin/false) endif # KBUILD_EXTMOD |
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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 # $(dot-config) |
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# 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 |
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KBUILD_CFLAGS += -Os |
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else |
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KBUILD_CFLAGS += -O2 |
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endif |
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include $(srctree)/arch/$(SRCARCH)/Makefile |
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ifneq (CONFIG_FRAME_WARN,0) KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) endif |
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# Force gcc to behave correct even for buggy distributions # Arch Makefiles may override this setting KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) |
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ifdef CONFIG_FRAME_POINTER |
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KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls |
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else |
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KBUILD_CFLAGS += -fomit-frame-pointer |
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endif ifdef CONFIG_DEBUG_INFO |
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KBUILD_CFLAGS += -g |
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KBUILD_AFLAGS += -gdwarf-2 |
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endif |
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ifdef CONFIG_FTRACE KBUILD_CFLAGS += -pg endif |
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# We trigger additional mismatches with less inlining ifdef CONFIG_DEBUG_SECTION_MISMATCH KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) endif |
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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 |
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KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) |
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# disable pointer signed / unsigned warnings in gcc 4.0 |
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KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,) |
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# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments |
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# But warn user when we do so warn-assign = \ $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)") ifneq ($(KCPPFLAGS),) $(call warn-assign,CPPFLAGS) KBUILD_CPPFLAGS += $(KCPPFLAGS) endif ifneq ($(KAFLAGS),) $(call warn-assign,AFLAGS) KBUILD_AFLAGS += $(KAFLAGS) endif ifneq ($(KCFLAGS),) $(call warn-assign,CFLAGS) KBUILD_CFLAGS += $(KCFLAGS) endif |
52bcc3308
|
539 |
|
18991197b
|
540 541 542 543 544 |
# Use --build-id when available. LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ $(call ld-option, -Wl$(comma)--build-id,)) LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) |
1da177e4c
|
545 |
# Default kernel image to build when no specific target is given. |
070b98bfd
|
546 |
# KBUILD_IMAGE may be overruled on the command line or |
1da177e4c
|
547 548 549 550 551 552 553 554 555 556 557 558 559 |
# set in the environment # Also any assignments in arch/$(ARCH)/Makefile take precedence over # this default value export KBUILD_IMAGE ?= vmlinux # # INSTALL_PATH specifies where to place the updated kernel and system map # images. Default is /boot, but you can set it to other values export INSTALL_PATH ?= /boot # # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory # relocations required by build roots. This is not defined in the |
070b98bfd
|
560 |
# makefile but the argument can be passed to make if needed. |
1da177e4c
|
561 |
# |
df9df036d
|
562 |
MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
1da177e4c
|
563 |
export MODLIB |
ac031f26e
|
564 565 566 567 568 569 570 571 |
# # 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) |
e340221ac
|
572 |
mod_strip_cmd = $(STRIP) --strip-debug |
ac031f26e
|
573 574 575 576 577 578 579 |
else mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) endif # INSTALL_MOD_STRIP=1 else mod_strip_cmd = true endif # INSTALL_MOD_STRIP export mod_strip_cmd |
1da177e4c
|
580 581 |
ifeq ($(KBUILD_EXTMOD),) |
3a65dfe8c
|
582 |
core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ |
1da177e4c
|
583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 |
vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ $(net-y) $(net-m) $(libs-y) $(libs-m))) vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ $(init-n) $(init-) \ $(core-n) $(core-) $(drivers-n) $(drivers-) \ $(net-n) $(net-) $(libs-n) $(libs-)))) init-y := $(patsubst %/, %/built-in.o, $(init-y)) core-y := $(patsubst %/, %/built-in.o, $(core-y)) drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) net-y := $(patsubst %/, %/built-in.o, $(net-y)) libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) libs-y := $(libs-y1) $(libs-y2) # Build vmlinux # --------------------------------------------------------------------------- |
070b98bfd
|
603 |
# vmlinux is built from the objects selected by $(vmlinux-init) and |
1da177e4c
|
604 |
# $(vmlinux-main). Most are built-in.o files from top-level directories |
2462566f2
|
605 |
# in the kernel tree, others are specified in arch/$(ARCH)/Makefile. |
1da177e4c
|
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 |
# Ordering when linking is important, and $(vmlinux-init) must be first. # # vmlinux # ^ # | # +-< $(vmlinux-init) # | +--< init/version.o + more # | # +--< $(vmlinux-main) # | +--< driver/built-in.o mm/built-in.o + more # | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) # # vmlinux version (uname -v) cannot be updated during normal # descending-into-subdirs phase since we do not yet know if we need to # update vmlinux. # Therefore this step is delayed until just before final link of vmlinux - # except in the kallsyms case where it is done just before adding the # symbols to the kernel. # # System.map is generated to document addresses of all kernel symbols vmlinux-init := $(head-y) $(init-y) vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) vmlinux-all := $(vmlinux-init) $(vmlinux-main) |
6752ed90d
|
631 |
vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds |
85bd2fddd
|
632 |
export KBUILD_VMLINUX_OBJS := $(vmlinux-all) |
1da177e4c
|
633 634 635 636 637 638 639 |
# Rule to link vmlinux - also used during CONFIG_KALLSYMS # May be overridden by arch/$(ARCH)/Makefile quiet_cmd_vmlinux__ ?= LD $@ cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ -T $(vmlinux-lds) $(vmlinux-init) \ --start-group $(vmlinux-main) --end-group \ |
741f98fe2
|
640 |
$(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) |
1da177e4c
|
641 642 643 644 |
# Generate new vmlinux version quiet_cmd_vmlinux_version = GEN .version cmd_vmlinux_version = set -e; \ |
4e25d8bb9
|
645 646 647 648 649 650 651 |
if [ ! -r .version ]; then \ rm -f .version; \ echo 1 >.version; \ else \ mv .version .old_version; \ expr 0$$(cat .old_version) + 1 >.version; \ fi; \ |
1da177e4c
|
652 653 654 |
$(MAKE) $(build)=init # Generate System.map |
070b98bfd
|
655 |
quiet_cmd_sysmap = SYSMAP |
1da177e4c
|
656 657 658 659 660 |
cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap # Link of vmlinux # If CONFIG_KALLSYMS is set .version is already updated # Generate System.map and verify that the content is consistent |
39ca371c4
|
661 662 |
# Use + in front of the vmlinux_version rule to silent warning with make -j2 # First command is ':' to allow us to use + in front of the rule |
1da177e4c
|
663 |
define rule_vmlinux__ |
39ca371c4
|
664 |
: |
1da177e4c
|
665 666 667 668 |
$(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) $(call cmd,vmlinux__) $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd |
4635281c8
|
669 670 671 672 673 674 |
$(Q)$(if $($(quiet)cmd_sysmap), \ echo ' $($(quiet)cmd_sysmap) System.map' &&) \ $(cmd_sysmap) $@ System.map; \ if [ $$? -ne 0 ]; then \ rm -f $@; \ /bin/false; \ |
1da177e4c
|
675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 |
fi; $(verify_kallsyms) endef ifdef CONFIG_KALLSYMS # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) # It's a three stage process: # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is # empty # Running kallsyms on that gives us .tmp_kallsyms1.o with # the right size - vmlinux version (uname -v) is updated during this step # o .tmp_vmlinux2 now has a __kallsyms section of the right size, # but due to the added section, some addresses have shifted. # From here, we generate a correct .tmp_kallsyms2.o # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. # o Verify that the System.map from vmlinux matches the map from # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a # temporary bypass to allow the kernel to be built while the # maintainers work out what went wrong with kallsyms. ifdef CONFIG_KALLSYMS_EXTRA_PASS last_kallsyms := 3 else last_kallsyms := 2 endif kallsyms.o := .tmp_kallsyms$(last_kallsyms).o define verify_kallsyms |
4635281c8
|
707 708 |
$(Q)$(if $($(quiet)cmd_sysmap), \ echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ |
1da177e4c
|
709 |
$(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map |
4635281c8
|
710 711 712 |
$(Q)cmp -s System.map .tmp_System.map || \ (echo Inconsistent kallsyms data; \ echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ |
1da177e4c
|
713 714 715 716 717 |
rm .tmp_kallsyms* ; /bin/false ) endef # Update vmlinux version before link # Use + in front of this rule to silent warning about make -j1 |
72ba47c1b
|
718 |
# First command is ':' to allow us to use + in front of this rule |
1da177e4c
|
719 720 |
cmd_ksym_ld = $(cmd_vmlinux__) define rule_ksym_ld |
72ba47c1b
|
721 |
: |
1da177e4c
|
722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 |
+$(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. $(KALLSYMS): scripts ; |
33bc25eae
|
750 751 752 753 754 755 756 757 758 |
# Generate some data for debugging strange kallsyms problems debug_kallsyms: .tmp_map$(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
|
759 |
endif # ifdef CONFIG_KALLSYMS |
741f98fe2
|
760 761 762 763 764 |
# Do modpost on a prelinked vmlinux. The finally linked vmlinux has # relevant sections renamed as per the linker script. quiet_cmd_vmlinux-modpost = LD $@ cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \ $(vmlinux-init) --start-group $(vmlinux-main) --end-group \ |
90ebd878a
|
765 |
$(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^) |
741f98fe2
|
766 767 768 769 770 771 |
define rule_vmlinux-modpost : +$(call cmd,vmlinux-modpost) $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@ $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd endef |
1da177e4c
|
772 |
# vmlinux image - including updated kernel symbols |
310f8243a
|
773 |
vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE |
0f836e5fe
|
774 |
ifdef CONFIG_HEADERS_CHECK |
0e7af8d04
|
775 |
$(Q)$(MAKE) -f $(srctree)/Makefile headers_check |
0f836e5fe
|
776 |
endif |
267c4025f
|
777 778 779 |
ifdef CONFIG_SAMPLES $(Q)$(MAKE) $(build)=samples endif |
741f98fe2
|
780 |
$(call vmlinux-modpost) |
1da177e4c
|
781 |
$(call if_changed_rule,vmlinux__) |
4e25d8bb9
|
782 |
$(Q)rm -f .old_version |
1da177e4c
|
783 |
|
310f8243a
|
784 |
# build vmlinux.o first to catch section mismatch errors early |
cf87dcd14
|
785 786 787 |
ifdef CONFIG_KALLSYMS .tmp_vmlinux1: vmlinux.o endif |
90ebd878a
|
788 789 790 |
modpost-init := $(filter-out init/built-in.o, $(vmlinux-init)) vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE |
741f98fe2
|
791 |
$(call if_changed_rule,vmlinux-modpost) |
1da177e4c
|
792 793 794 795 796 797 798 799 800 |
# 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
|
801 |
PHONY += $(vmlinux-dirs) |
5bb782690
|
802 |
$(vmlinux-dirs): prepare scripts |
1da177e4c
|
803 |
$(Q)$(MAKE) $(build)=$@ |
cb58455c4
|
804 |
# Build the kernel release string |
cb58455c4
|
805 |
# |
1ef988569
|
806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 |
# The KERNELRELEASE value built here is stored in the file # include/config/kernel.release, and is used when executing several # make targets, such as "make install" or "make modules_install." # # The eventual kernel release string consists of the following fields, # shown in a hierarchical format to show how smaller parts are concatenated # to form the larger and final value, with values coming from places like # the Makefile, kernel config options, make command line options and/or # SCM tag information. # # $(KERNELVERSION) # $(VERSION) eg, 2 # $(PATCHLEVEL) eg, 6 # $(SUBLEVEL) eg, 18 # $(EXTRAVERSION) eg, -rc6 # $(localver-full) # $(localver) |
76c329563
|
823 |
# localversion* (files without backups, containing '~') |
1ef988569
|
824 825 826 827 828 829 830 831 832 |
# $(CONFIG_LOCALVERSION) (from kernel config setting) # $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set) # ./scripts/setlocalversion (SCM tag, if one exists) # $(LOCALVERSION) (from make command line if provided) # # Note how the final $(localver-auto) string is included *only* if the # kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the # moment, only git is supported but other SCMs can edit the script # scripts/setlocalversion and add the appropriate checks as needed. |
cb58455c4
|
833 |
|
76c329563
|
834 835 |
pattern = ".*/localversion[^~]*" string = $(shell cat /dev/null \ |
fd19e44f4
|
836 |
`find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`) |
cb58455c4
|
837 |
|
76c329563
|
838 839 |
localver = $(subst $(space),, $(string) \ $(patsubst "%",%,$(CONFIG_LOCALVERSION))) |
070b98bfd
|
840 |
|
cb58455c4
|
841 842 |
# If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called # and if the SCM is know a tag from the SCM is appended. |
070b98bfd
|
843 |
# The appended tag is determined by the SCM used. |
cb58455c4
|
844 845 846 847 848 849 850 851 852 853 854 |
# # 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
|
855 |
# Store (new) KERNELRELASE string in include/config/kernel.release |
2244cbd8a
|
856 |
kernelrelease = $(KERNELVERSION)$(localver-full) |
f1d28fb04
|
857 |
include/config/kernel.release: include/config/auto.conf FORCE |
2244cbd8a
|
858 859 |
$(Q)rm -f $@ $(Q)echo $(kernelrelease) > $@ |
cb58455c4
|
860 |
|
1da177e4c
|
861 |
# Things we need to do before we recursively start building the kernel |
5bb782690
|
862 863 864 865 |
# 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
|
866 |
|
5bb782690
|
867 |
# Listed in dependency order |
4f1933620
|
868 |
PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 |
5bb782690
|
869 |
|
86feeaa81
|
870 |
# prepare3 is used to check if we are building in a separate output directory, |
1da177e4c
|
871 872 873 |
# and if so do: # 1) Check that make has not been executed in the kernel src $(srctree) # 2) Create the include2 directory, used for the second asm symlink |
f1d28fb04
|
874 |
prepare3: include/config/kernel.release |
1da177e4c
|
875 876 |
ifneq ($(KBUILD_SRC),) @echo ' Using $(srctree) as source for kernel' |
c955ccafc
|
877 |
$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ |
1da177e4c
|
878 879 880 881 882 |
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; |
96a388de5
|
883 |
$(Q)ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm |
1da177e4c
|
884 |
endif |
86feeaa81
|
885 886 |
# prepare2 creates a makefile if using a separate output directory prepare2: prepare3 outputmakefile |
1da177e4c
|
887 |
|
3eb3c740f
|
888 889 |
prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \ include/asm include/config/auto.conf |
7bb9d092d
|
890 |
$(cmd_crmodverdir) |
1da177e4c
|
891 |
|
5bb782690
|
892 893 894 |
archprepare: prepare1 scripts_basic prepare0: archprepare FORCE |
8d36a6236
|
895 |
$(Q)$(MAKE) $(build)=. |
c53aeca05
|
896 |
$(Q)$(MAKE) $(build)=. missing-syscalls |
86feeaa81
|
897 |
|
1da177e4c
|
898 |
# All the preparing.. |
d395efb54
|
899 |
prepare: prepare0 |
1da177e4c
|
900 |
|
070b98bfd
|
901 902 |
# Leave this as default for preprocessing vmlinux.lds.S, which is now # done in arch/$(ARCH)/kernel/Makefile |
1da177e4c
|
903 904 |
export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) |
fc333b2df
|
905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 |
# The asm symlink changes when $(ARCH) changes. # Detect this and ask user to run make mrproper include/asm: FORCE $(Q)set -e; asmlink=`readlink include/asm | cut -d '-' -f 2`; \ if [ -L include/asm ]; then \ if [ "$$asmlink" != "$(SRCARCH)" ]; then \ echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \ echo " set ARCH or save .config and run 'make mrproper' to fix it"; \ exit 1; \ fi; \ else \ echo ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \ if [ ! -d include ]; then \ mkdir -p include; \ fi; \ ln -fsn asm-$(SRCARCH) $@; \ fi |
1da177e4c
|
923 |
|
1da177e4c
|
924 925 926 927 928 929 930 |
# Generate some files # --------------------------------------------------------------------------- # KERNELRELEASE can change from a few different places, meaning version.h # needs to be updated, so this check is forced on all builds uts_len := 64 |
63104eec2
|
931 932 933 934 935 936 937 |
define filechk_utsrelease.h if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ exit 1; \ fi; \ (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) endef |
1da177e4c
|
938 939 |
define filechk_version.h |
63104eec2
|
940 941 942 |
(echo \#define LINUX_VERSION_CODE $(shell \ expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \ echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) |
1da177e4c
|
943 |
endef |
63104eec2
|
944 |
include/linux/version.h: $(srctree)/Makefile FORCE |
1da177e4c
|
945 |
$(call filechk,version.h) |
63104eec2
|
946 947 |
include/linux/utsrelease.h: include/config/kernel.release FORCE $(call filechk,utsrelease.h) |
1da177e4c
|
948 |
# --------------------------------------------------------------------------- |
4f1933620
|
949 |
PHONY += depend dep |
1da177e4c
|
950 951 952 953 |
depend dep: @echo '*** Warning: make $@ is unnecessary now.' # --------------------------------------------------------------------------- |
88ecf814c
|
954 955 956 957 958 959 960 961 962 963 |
# Firmware install INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware export INSTALL_FW_PATH PHONY += firmware_install firmware_install: FORCE @mkdir -p $(objtree)/firmware $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install # --------------------------------------------------------------------------- |
8d730cfb5
|
964 |
# Kernel headers |
1ab7a1f3b
|
965 |
INSTALL_HDR_PATH=$(objtree)/usr |
8d730cfb5
|
966 |
export INSTALL_HDR_PATH |
96a388de5
|
967 968 |
HDRFILTER=generic i386 x86_64 HDRARCHES=$(filter-out $(HDRFILTER),$(patsubst $(srctree)/include/asm-%/Kbuild,%,$(wildcard $(srctree)/include/asm-*/Kbuild))) |
6d7162758
|
969 970 |
PHONY += headers_install_all |
3eb3c740f
|
971 |
headers_install_all: include/linux/version.h scripts_basic FORCE |
398477d4b
|
972 |
$(Q)$(MAKE) $(build)=scripts scripts/unifdef |
6d7162758
|
973 |
$(Q)for arch in $(HDRARCHES); do \ |
398477d4b
|
974 |
$(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch ;\ |
6d7162758
|
975 |
done |
8d730cfb5
|
976 |
PHONY += headers_install |
3eb3c740f
|
977 |
headers_install: include/linux/version.h scripts_basic FORCE |
96a388de5
|
978 979 |
@if [ ! -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \ echo '*** Error: Headers not exportable for this architecture ($(SRCARCH))'; \ |
f17b7bad3
|
980 |
exit 1 ; fi |
07aea3a71
|
981 |
$(Q)$(MAKE) $(build)=scripts scripts/unifdef |
96a388de5
|
982 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst ARCH=$(SRCARCH) obj=include |
8d730cfb5
|
983 |
|
1f85712e6
|
984 985 986 987 988 |
PHONY += headers_check_all headers_check_all: headers_install_all $(Q)for arch in $(HDRARCHES); do \ $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch HDRCHECK=1 ;\ done |
684753599
|
989 990 |
PHONY += headers_check headers_check: headers_install |
96a388de5
|
991 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst ARCH=$(SRCARCH) obj=include HDRCHECK=1 |
684753599
|
992 |
|
8d730cfb5
|
993 |
# --------------------------------------------------------------------------- |
1da177e4c
|
994 995 996 |
# Modules ifdef CONFIG_MODULES |
070b98bfd
|
997 |
# By default, build modules as well |
1da177e4c
|
998 999 1000 1001 |
all: modules # Build modules |
551559e13
|
1002 1003 1004 1005 |
# # A module can be listed more than once in obj-m resulting in # duplicate lines in modules.order files. Those are removed # using awk while concatenating to the final file. |
1da177e4c
|
1006 |
|
4f1933620
|
1007 |
PHONY += modules |
1da177e4c
|
1008 |
modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) |
551559e13
|
1009 |
$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order |
1da177e4c
|
1010 |
@echo ' Building modules, stage 2.'; |
b805aa0e7
|
1011 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
44463f7dd
|
1012 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild |
1da177e4c
|
1013 1014 1015 |
# Target to prepare building external modules |
4f1933620
|
1016 |
PHONY += modules_prepare |
5bb782690
|
1017 |
modules_prepare: prepare scripts |
1da177e4c
|
1018 1019 |
# Target to install modules |
4f1933620
|
1020 |
PHONY += modules_install |
1da177e4c
|
1021 |
modules_install: _modinst_ _modinst_post |
4f1933620
|
1022 |
PHONY += _modinst_ |
1da177e4c
|
1023 |
_modinst_: |
ce454d4d7
|
1024 |
@if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ |
1da177e4c
|
1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 |
echo "Warning: you may need to install module-init-tools"; \ echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ sleep 1; \ fi @rm -rf $(MODLIB)/kernel @rm -f $(MODLIB)/source @mkdir -p $(MODLIB)/kernel @ln -s $(srctree) $(MODLIB)/source @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ rm -f $(MODLIB)/build ; \ ln -s $(objtree) $(MODLIB)/build ; \ fi |
551559e13
|
1037 |
@cp -f $(objtree)/modules.order $(MODLIB)/ |
b805aa0e7
|
1038 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1da177e4c
|
1039 |
|
50a8ec31c
|
1040 |
# This depmod is only for convenience to give the initial |
1da177e4c
|
1041 1042 |
# boot a modules.dep even before / is mounted read-write. However the # boot script depmod is the master version. |
4f1933620
|
1043 |
PHONY += _modinst_post |
1da177e4c
|
1044 |
_modinst_post: _modinst_ |
88ecf814c
|
1045 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst |
50a8ec31c
|
1046 |
$(call cmd,depmod) |
1da177e4c
|
1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 |
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
|
1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 |
### # 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' |
1ab7a1f3b
|
1075 |
MRPROPER_DIRS += include/config include2 usr/include |
50aa88e28
|
1076 |
MRPROPER_FILES += .config .config.old include/asm .version .old_version \ |
3eb3c740f
|
1077 1078 |
include/linux/autoconf.h include/linux/version.h \ include/linux/utsrelease.h \ |
7d3cc8b6d
|
1079 |
include/linux/bounds.h include/asm*/asm-offsets.h \ |
f1d28fb04
|
1080 |
Module.symvers tags TAGS cscope* |
1da177e4c
|
1081 1082 1083 1084 1085 |
# clean - Delete most, but leave enough to build external modules # clean: rm-dirs := $(CLEAN_DIRS) clean: rm-files := $(CLEAN_FILES) |
86feeaa81
|
1086 |
clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs)) |
1da177e4c
|
1087 |
|
4f1933620
|
1088 |
PHONY += $(clean-dirs) clean archclean |
1da177e4c
|
1089 1090 1091 1092 1093 1094 1095 |
$(clean-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) clean: archclean $(clean-dirs) $(call cmd,rmdirs) $(call cmd,rmfiles) @find . $(RCS_FIND_IGNORE) \ |
070b98bfd
|
1096 |
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
15fde6751
|
1097 |
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ |
d35cb360c
|
1098 1099 |
-o -name '*.symtypes' -o -name 'modules.order' \ -o -name 'Module.markers' \) \ |
1da177e4c
|
1100 1101 1102 1103 1104 1105 1106 |
-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
|
1107 |
PHONY += $(mrproper-dirs) mrproper archmrproper |
1da177e4c
|
1108 1109 1110 1111 1112 1113 1114 1115 1116 |
$(mrproper-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) mrproper: clean archmrproper $(mrproper-dirs) $(call cmd,rmdirs) $(call cmd,rmfiles) # distclean # |
4f1933620
|
1117 |
PHONY += distclean |
1da177e4c
|
1118 1119 1120 |
distclean: mrproper @find $(srctree) $(RCS_FIND_IGNORE) \ |
070b98bfd
|
1121 |
\( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
1da177e4c
|
1122 |
-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ |
070b98bfd
|
1123 |
-o -name '.*.rej' -o -size 0 \ |
1da177e4c
|
1124 1125 1126 1127 1128 1129 1130 1131 |
-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ -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
|
1132 |
%pkg: include/config/kernel.release FORCE |
6c2133e11
|
1133 |
$(Q)$(MAKE) $(build)=$(package-dir) $@ |
031ecc6de
|
1134 |
rpm: include/config/kernel.release FORCE |
6c2133e11
|
1135 |
$(Q)$(MAKE) $(build)=$(package-dir) $@ |
1da177e4c
|
1136 1137 1138 1139 |
# Brief documentation of the typical targets used # --------------------------------------------------------------------------- |
5dffbe811
|
1140 |
boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) |
1da177e4c
|
1141 |
boards := $(notdir $(boards)) |
5dffbe811
|
1142 1143 |
board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) board-dirs := $(sort $(notdir $(board-dirs:/=))) |
1da177e4c
|
1144 1145 1146 |
help: @echo 'Cleaning targets:' |
5ea084ef9
|
1147 |
@echo ' clean - Remove most generated files but keep the config and' |
5cc8d246d
|
1148 |
@echo ' enough build support to build external modules' |
5ea084ef9
|
1149 |
@echo ' mrproper - Remove all generated files + config + various backup files' |
5cc8d246d
|
1150 |
@echo ' distclean - mrproper + remove editor backup and patch files' |
1da177e4c
|
1151 1152 1153 1154 1155 1156 1157 1158 |
@echo '' @echo 'Configuration targets:' @$(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
|
1159 |
@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
88ecf814c
|
1160 1161 |
@echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' |
1da177e4c
|
1162 1163 |
@echo ' dir/ - Build all files in dir and below' @echo ' dir/file.[ois] - Build specified target only' |
155ad605b
|
1164 |
@echo ' dir/file.ko - Build module including final link' |
243f40cec
|
1165 |
@echo ' prepare - Set up for building external modules' |
1da177e4c
|
1166 1167 |
@echo ' tags/TAGS - Generate tags file for editors' @echo ' cscope - Generate cscope index' |
6d1288425
|
1168 |
@echo ' kernelrelease - Output the release version string' |
cb58455c4
|
1169 |
@echo ' kernelversion - Output the version stored in Makefile' |
91e034eff
|
1170 |
@if [ -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \ |
f17b7bad3
|
1171 |
echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ |
59df3230f
|
1172 |
echo ' (default: $(INSTALL_HDR_PATH))'; \ |
f17b7bad3
|
1173 |
fi |
1da177e4c
|
1174 1175 |
@echo '' @echo 'Static analysers' |
1da177e4c
|
1176 1177 |
@echo ' checkstack - Generate a list of stack hogs' @echo ' namespacecheck - Name space analysis on compiled kernel' |
aa025e7d5
|
1178 |
@echo ' versioncheck - Sanity check on version.h usage' |
ec2d987f9
|
1179 |
@echo ' includecheck - Check for duplicate included header files' |
295ac0518
|
1180 |
@echo ' export_report - List the usages of all exported symbols' |
91e034eff
|
1181 |
@if [ -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \ |
f17b7bad3
|
1182 1183 |
echo ' headers_check - Sanity check on exported headers'; \ fi |
1da177e4c
|
1184 1185 |
@echo '' @echo 'Kernel packaging:' |
6c2133e11
|
1186 |
@$(MAKE) $(build)=$(package-dir) help |
1da177e4c
|
1187 1188 1189 1190 |
@echo '' @echo 'Documentation targets:' @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp @echo '' |
01dee1881
|
1191 |
@echo 'Architecture specific targets ($(SRCARCH)):' |
1da177e4c
|
1192 |
@$(if $(archhelp),$(archhelp),\ |
01dee1881
|
1193 |
echo ' No architecture specific help defined for $(SRCARCH)') |
1da177e4c
|
1194 1195 1196 1197 1198 1199 |
@echo '' @$(if $(boards), \ $(foreach b, $(boards), \ printf " %-24s - Build for %s\ " $(b) $(subst _defconfig,,$(b));) \ echo '') |
5dffbe811
|
1200 1201 1202 1203 1204 1205 1206 |
@$(if $(board-dirs), \ $(foreach b, $(board-dirs), \ printf " %-16s - Show %s-specific targets\ " help-$(b) $(b);) \ printf " %-16s - Show all of the above\ " help-boards; \ echo '') |
1da177e4c
|
1207 1208 |
@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' |
45d506bd6
|
1209 |
@echo ' make V=2 [targets] 2 => give reason for rebuild of target' |
1da177e4c
|
1210 |
@echo ' make O=dir [targets] Locate all output files in "dir", including .config' |
701842e3b
|
1211 1212 |
@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' @echo ' make C=2 [targets] Force check of all c source with $$CHECK' |
1da177e4c
|
1213 1214 1215 |
@echo '' @echo 'Execute "make" or "make all" to build all targets marked with [*] ' @echo 'For further info see the ./README file' |
5dffbe811
|
1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 |
help-board-dirs := $(addprefix help-,$(board-dirs)) help-boards: $(help-board-dirs) boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) $(help-board-dirs): help-%: @echo 'Architecture specific targets ($(SRCARCH) $*):' @$(if $(boards-per-dir), \ $(foreach b, $(boards-per-dir), \ printf " %-24s - Build for %s\ " $*/$(b) $(subst _defconfig,,$(b));) \ echo '') |
1da177e4c
|
1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 |
# 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
|
1250 |
# Install the modules built in the module directory |
1da177e4c
|
1251 1252 1253 1254 |
# Assumes install directory is already created # We are always building modules KBUILD_MODULES := 1 |
4f1933620
|
1255 |
PHONY += crmodverdir |
1da177e4c
|
1256 |
crmodverdir: |
7bb9d092d
|
1257 |
$(cmd_crmodverdir) |
1da177e4c
|
1258 |
|
4f1933620
|
1259 |
PHONY += $(objtree)/Module.symvers |
1da177e4c
|
1260 1261 1262 1263 1264 1265 1266 1267 |
$(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
|
1268 |
PHONY += $(module-dirs) modules |
1da177e4c
|
1269 1270 1271 1272 1273 |
$(module-dirs): crmodverdir $(objtree)/Module.symvers $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) modules: $(module-dirs) @echo ' Building modules, stage 2.'; |
b805aa0e7
|
1274 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1da177e4c
|
1275 |
|
4f1933620
|
1276 |
PHONY += modules_install |
a67dc21a3
|
1277 |
modules_install: _emodinst_ _emodinst_post |
e63046630
|
1278 |
|
4f1933620
|
1279 1280 |
install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) PHONY += _emodinst_ |
a67dc21a3
|
1281 |
_emodinst_: |
a67dc21a3
|
1282 |
$(Q)mkdir -p $(MODLIB)/$(install-dir) |
b805aa0e7
|
1283 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1da177e4c
|
1284 |
|
4f1933620
|
1285 |
PHONY += _emodinst_post |
a67dc21a3
|
1286 1287 |
_emodinst_post: _emodinst_ $(call cmd,depmod) |
1da177e4c
|
1288 |
clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) |
4f1933620
|
1289 |
PHONY += $(clean-dirs) clean |
1da177e4c
|
1290 1291 1292 1293 |
$(clean-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) clean: rm-dirs := $(MODVERDIR) |
c34114f4a
|
1294 |
clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers |
1da177e4c
|
1295 1296 |
clean: $(clean-dirs) $(call cmd,rmdirs) |
c34114f4a
|
1297 |
$(call cmd,rmfiles) |
1da177e4c
|
1298 |
@find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \ |
070b98bfd
|
1299 |
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
1da177e4c
|
1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 |
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ -type f -print | xargs rm -f help: @echo ' Building external modules.' @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' @echo '' @echo ' modules - default target, build the module(s)' @echo ' modules_install - install the module' @echo ' clean - remove generated files in module directory only' @echo '' |
06300b21f
|
1311 1312 |
# Dummies... |
4f1933620
|
1313 |
PHONY += prepare scripts |
06300b21f
|
1314 1315 |
prepare: ; scripts: ; |
1da177e4c
|
1316 1317 1318 1319 1320 1321 1322 1323 |
endif # KBUILD_EXTMOD # Generate tags for editors # --------------------------------------------------------------------------- #We want __srctree to totally vanish out when KBUILD_OUTPUT is not set #(which is the most common case IMHO) to avoid unneeded clutter in the big tags file. #Adding $(srctree) adds about 20M on i386 to the size of the output file! |
f182ae626
|
1324 |
ifeq ($(src),$(obj)) |
1da177e4c
|
1325 1326 1327 1328 |
__srctree = else __srctree = $(srctree)/ endif |
2ab23c95a
|
1329 1330 1331 1332 |
ifeq ($(ALLSOURCE_ARCHS),) ifeq ($(ARCH),um) ALLINCLUDE_ARCHS := $(ARCH) $(SUBARCH) else |
2eb4c9509
|
1333 |
ALLINCLUDE_ARCHS := $(SRCARCH) |
2ab23c95a
|
1334 1335 |
endif else |
d384e35a2
|
1336 |
#Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behaviour. |
2ab23c95a
|
1337 1338 |
ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS) endif |
d0974b11e
|
1339 |
ALLSOURCE_ARCHS := $(SRCARCH) |
a0674e88d
|
1340 |
|
e838db685
|
1341 |
define find-sources |
f8bea58b6
|
1342 1343 |
( for arch in $(ALLSOURCE_ARCHS) ; do \ find $(__srctree)arch/$${arch} $(RCS_FIND_IGNORE) \ |
e838db685
|
1344 |
-name $1 -print; \ |
a0674e88d
|
1345 |
done ; \ |
1da177e4c
|
1346 |
find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \ |
e838db685
|
1347 |
-name $1 -print; \ |
1da177e4c
|
1348 1349 |
find $(__srctree)include $(RCS_FIND_IGNORE) \ \( -name config -o -name 'asm-*' \) -prune \ |
e838db685
|
1350 |
-o -name $1 -print; \ |
f8bea58b6
|
1351 1352 |
for arch in $(ALLINCLUDE_ARCHS) ; do \ find $(__srctree)include/asm-$${arch} $(RCS_FIND_IGNORE) \ |
e838db685
|
1353 |
-name $1 -print; \ |
a0674e88d
|
1354 |
done ; \ |
1da177e4c
|
1355 |
find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \ |
dd7e54ade
|
1356 1357 |
-name $1 -print; \ find $(__srctree) $(RCS_FIND_IGNORE) \ |
37ab7a269
|
1358 |
\( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \ |
dd7e54ade
|
1359 1360 |
-name $1 -print; \ ) |
e838db685
|
1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 |
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
|
1371 |
endef |
da7c04083
|
1372 1373 1374 1375 |
define xtags if $1 --version 2>&1 | grep -iq exuberant; then \ $(all-sources) | xargs $1 -a \ -I __initdata,__exitdata,__acquires,__releases \ |
2c81210a2
|
1376 |
-I __read_mostly,____cacheline_aligned,____cacheline_aligned_in_smp,____cacheline_internodealigned_in_smp \ |
da7c04083
|
1377 |
-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \ |
91b943ee4
|
1378 |
--extra=+f --c-kinds=+px \ |
a412c1723
|
1379 |
--regex-asm='/^ENTRY\(([^)]*)\).*/\1/'; \ |
da7c04083
|
1380 1381 1382 |
$(all-kconfigs) | xargs $1 -a \ --langdef=kconfig \ --language-force=kconfig \ |
80ff26241
|
1383 |
--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'; \ |
18e39913d
|
1384 |
$(all-defconfigs) | xargs -r $1 -a \ |
da7c04083
|
1385 1386 1387 1388 1389 1390 |
--langdef=dotconfig \ --language-force=dotconfig \ --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'; \ elif $1 --version 2>&1 | grep -iq emacs; then \ $(all-sources) | xargs $1 -a; \ $(all-kconfigs) | xargs $1 -a \ |
a95bcfac2
|
1391 |
--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'; \ |
18e39913d
|
1392 |
$(all-defconfigs) | xargs -r $1 -a \ |
da7c04083
|
1393 1394 1395 1396 1397 |
--regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'; \ else \ $(all-sources) | xargs $1 -a; \ fi endef |
1da177e4c
|
1398 |
quiet_cmd_cscope-file = FILELST cscope.files |
acbef459a
|
1399 |
cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files |
1da177e4c
|
1400 1401 |
quiet_cmd_cscope = MAKE cscope.out |
acbef459a
|
1402 |
cmd_cscope = cscope -b |
1da177e4c
|
1403 1404 1405 1406 1407 1408 |
cscope: FORCE $(call cmd,cscope-file) $(call cmd,cscope) quiet_cmd_TAGS = MAKE $@ |
66d609ec8
|
1409 1410 |
define cmd_TAGS rm -f $@; \ |
da7c04083
|
1411 |
$(call xtags,etags) |
66d609ec8
|
1412 1413 1414 1415 |
endef TAGS: FORCE $(call cmd,TAGS) |
1da177e4c
|
1416 |
|
1da177e4c
|
1417 1418 1419 |
quiet_cmd_tags = MAKE $@ define cmd_tags rm -f $@; \ |
da7c04083
|
1420 |
$(call xtags,ctags) |
1da177e4c
|
1421 |
endef |
1da177e4c
|
1422 1423 1424 1425 1426 1427 |
tags: FORCE $(call cmd,tags) # Scripts to check various things for consistency # --------------------------------------------------------------------------- |
1da177e4c
|
1428 1429 1430 |
includecheck: find * $(RCS_FIND_IGNORE) \ -name '*.[hcS]' -type f -print | sort \ |
800074345
|
1431 |
| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl |
1da177e4c
|
1432 1433 1434 1435 |
versioncheck: find * $(RCS_FIND_IGNORE) \ -name '*.[hcS]' -type f -print | sort \ |
800074345
|
1436 |
| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl |
1da177e4c
|
1437 |
|
1da177e4c
|
1438 1439 |
namespacecheck: $(PERL) $(srctree)/scripts/namespace.pl |
295ac0518
|
1440 1441 |
export_report: $(PERL) $(srctree)/scripts/export_report.pl |
1da177e4c
|
1442 1443 |
endif #ifeq ($(config-targets),1) endif #ifeq ($(mixed-targets),1) |
c30a02e02
|
1444 |
PHONY += checkstack kernelrelease kernelversion |
e3ccf6e36
|
1445 |
|
011e3a9ad
|
1446 1447 1448 1449 1450 1451 1452 1453 1454 |
# UML needs a little special treatment here. It wants to use the host # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone # else wants $(ARCH), including people doing cross-builds, which means # that $(SUBARCH) doesn't work here. ifeq ($(ARCH), um) CHECKSTACK_ARCH := $(SUBARCH) else CHECKSTACK_ARCH := $(ARCH) endif |
1da177e4c
|
1455 1456 |
checkstack: $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ |
011e3a9ad
|
1457 |
$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) |
1da177e4c
|
1458 1459 |
kernelrelease: |
f1d28fb04
|
1460 1461 |
$(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \ $(error kernelrelease not valid - run 'make prepare' to update it)) |
cb58455c4
|
1462 |
kernelversion: |
2244cbd8a
|
1463 |
@echo $(KERNELVERSION) |
1da177e4c
|
1464 |
|
06300b21f
|
1465 1466 |
# Single targets # --------------------------------------------------------------------------- |
bc2546a67
|
1467 |
# Single targets are compatible with: |
e1b8513d2
|
1468 |
# - build with mixed source and output |
bc2546a67
|
1469 1470 1471 1472 1473 1474 1475 |
# - build with separate output dir 'make O=...' # - external modules # # target-dir => where to store outputfile # build-dir => directory in kernel source tree to use ifeq ($(KBUILD_EXTMOD),) |
aa360879e
|
1476 |
build-dir = $(patsubst %/,%,$(dir $@)) |
bc2546a67
|
1477 1478 1479 1480 1481 1482 |
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
|
1483 |
%.s: %.c prepare scripts FORCE |
bc2546a67
|
1484 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1485 |
%.i: %.c prepare scripts FORCE |
bc2546a67
|
1486 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1487 |
%.o: %.c prepare scripts FORCE |
bc2546a67
|
1488 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1489 |
%.lst: %.c prepare scripts FORCE |
bc2546a67
|
1490 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1491 |
%.s: %.S prepare scripts FORCE |
bc2546a67
|
1492 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65
|
1493 |
%.o: %.S prepare scripts FORCE |
bc2546a67
|
1494 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
15fde6751
|
1495 1496 |
%.symtypes: %.c prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
06300b21f
|
1497 |
|
bc2546a67
|
1498 1499 |
# Modules / %/: prepare scripts FORCE |
7bb9d092d
|
1500 |
$(cmd_crmodverdir) |
06300b21f
|
1501 |
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
bc2546a67
|
1502 1503 |
$(build)=$(build-dir) %.ko: prepare scripts FORCE |
7bb9d092d
|
1504 |
$(cmd_crmodverdir) |
06300b21f
|
1505 |
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
bc2546a67
|
1506 |
$(build)=$(build-dir) $(@:.ko=.o) |
b805aa0e7
|
1507 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
06300b21f
|
1508 |
|
1da177e4c
|
1509 1510 1511 1512 1513 1514 1515 1516 |
# FIXME Should go into a make.lib or something # =========================================================================== quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) cmd_rmdirs = rm -rf $(rm-dirs) quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) cmd_rmfiles = rm -f $(rm-files) |
bc3c26fe6
|
1517 |
# Run depmod only if we have System.map and depmod is executable |
50a8ec31c
|
1518 1519 |
quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) cmd_depmod = \ |
d8d2e78a0
|
1520 |
if [ -r System.map -a -x $(DEPMOD) ]; then \ |
50a8ec31c
|
1521 1522 1523 1524 |
$(DEPMOD) -ae -F System.map \ $(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) -r) \ $(KERNELRELEASE); \ fi |
7bb9d092d
|
1525 |
# Create temporary dir for module support files |
ab19f8794
|
1526 1527 1528 |
# clean it up only when building all modules cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) |
1da177e4c
|
1529 |
|
222d394d3
|
1530 |
a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ |
06c5040cd
|
1531 |
$(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \ |
5e8d780d7
|
1532 |
$(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) |
1da177e4c
|
1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 |
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
|
1546 1547 1548 1549 |
# 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
|
1550 |
endif # skip-makefile |
4f1933620
|
1551 |
PHONY += FORCE |
1da177e4c
|
1552 |
FORCE: |
4f1933620
|
1553 |
|
4f1933620
|
1554 1555 1556 |
# 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) |