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VERSION = 2 PATCHLEVEL = 6 |
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SUBLEVEL = 30 |
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EXTRAVERSION = -rc8 |
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NAME = Man-Eating Seals of Antiquity |
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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[234].*/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 ($(ARCH),x86_64) SRCARCH := x86 endif |
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# Additional ARCH settings for sparc |
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ifeq ($(ARCH),sparc64) |
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SRCARCH := sparc |
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endif |
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# Additional ARCH settings for sh ifeq ($(ARCH),sh64) SRCARCH := sh endif |
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# Where to locate arch specific headers hdr-arch := $(SRCARCH) |
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ifeq ($(ARCH),m68knommu) hdr-arch := m68k 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 -Wno-return-void $(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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-I$(srctree)/arch/$(hdr-arch)/include \ -include include/linux/autoconf.h |
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KBUILD_CPPFLAGS := -D__KERNEL__ |
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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),) |
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$(Q)ln -fsn $(srctree) source |
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$(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 KBUILD_KCONFIG |
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config: scripts_basic outputmakefile FORCE $(Q)mkdir -p include/linux include/config $(Q)$(MAKE) $(build)=scripts/kconfig $@ %config: scripts_basic outputmakefile FORCE |
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$(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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|
1da177e4c Linux-2.6.12-rc2 |
495 496 |
else # Dummy target needed, because used as prerequisite |
c955ccafc kconfig: fix .con... |
497 |
include/config/auto.conf: ; |
9ee4e3365 kbuild: external ... |
498 |
endif # $(dot-config) |
1da177e4c Linux-2.6.12-rc2 |
499 500 501 502 |
# 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 |
070b98bfd kbuild: trivial f... |
503 |
# Defaults vmlinux but it is usually overridden in the arch makefile |
1da177e4c Linux-2.6.12-rc2 |
504 505 506 |
all: vmlinux ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE |
a0f97e06a kbuild: enable 'm... |
507 |
KBUILD_CFLAGS += -Os |
1da177e4c Linux-2.6.12-rc2 |
508 |
else |
a0f97e06a kbuild: enable 'm... |
509 |
KBUILD_CFLAGS += -O2 |
1da177e4c Linux-2.6.12-rc2 |
510 |
endif |
bef5b54bd Fix MIPS cross-co... |
511 |
include $(srctree)/arch/$(SRCARCH)/Makefile |
35bb5b1e0 Add option to ena... |
512 513 514 |
ifneq (CONFIG_FRAME_WARN,0) KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) endif |
e06b8b98d kbuild: allow -fs... |
515 |
# Force gcc to behave correct even for buggy distributions |
5d707e9c8 stackprotector: u... |
516 |
ifndef CONFIG_CC_STACKPROTECTOR |
e06b8b98d kbuild: allow -fs... |
517 |
KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) |
5d707e9c8 stackprotector: u... |
518 |
endif |
e06b8b98d kbuild: allow -fs... |
519 |
|
1da177e4c Linux-2.6.12-rc2 |
520 |
ifdef CONFIG_FRAME_POINTER |
a0f97e06a kbuild: enable 'm... |
521 |
KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls |
1da177e4c Linux-2.6.12-rc2 |
522 |
else |
a0f97e06a kbuild: enable 'm... |
523 |
KBUILD_CFLAGS += -fomit-frame-pointer |
1da177e4c Linux-2.6.12-rc2 |
524 525 526 |
endif ifdef CONFIG_DEBUG_INFO |
a0f97e06a kbuild: enable 'm... |
527 |
KBUILD_CFLAGS += -g |
222d394d3 kbuild: enable 'm... |
528 |
KBUILD_AFLAGS += -gdwarf-2 |
1da177e4c Linux-2.6.12-rc2 |
529 |
endif |
606576ce8 ftrace: rename FT... |
530 |
ifdef CONFIG_FUNCTION_TRACER |
16444a8a4 ftrace: add basic... |
531 532 |
KBUILD_CFLAGS += -pg endif |
91341d4b2 kbuild: introduce... |
533 534 535 536 |
# We trigger additional mismatches with less inlining ifdef CONFIG_DEBUG_SECTION_MISMATCH KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) endif |
e8e699317 [PATCH] kbuild: S... |
537 |
# arch Makefile may override CC so keep this after arch Makefile is included |
e8f5bdb02 [PATCH] Makefile ... |
538 |
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) |
e8e699317 [PATCH] kbuild: S... |
539 |
CHECKFLAGS += $(NOSTDINC_FLAGS) |
1da177e4c Linux-2.6.12-rc2 |
540 |
# warn about C99 declaration after statement |
a0f97e06a kbuild: enable 'm... |
541 |
KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) |
1da177e4c Linux-2.6.12-rc2 |
542 |
|
070b98bfd kbuild: trivial f... |
543 |
# disable pointer signed / unsigned warnings in gcc 4.0 |
a0f97e06a kbuild: enable 'm... |
544 |
KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,) |
1da177e4c Linux-2.6.12-rc2 |
545 |
|
fe8d0a410 kbuild: fix a few... |
546 |
# disable invalid "can't wrap" optimizations for signed / pointers |
d0115552c Move cc-option to... |
547 |
KBUILD_CFLAGS += $(call cc-option,-fwrapv) |
003086497 Build with -fno-d... |
548 549 |
# revert to pre-gcc-4.4 behaviour of .eh_frame KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) |
06c5040cd kbuild: enable 'm... |
550 |
# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments |
69ee0b352 kbuild: do not pi... |
551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 |
# 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 kbuild: enable us... |
567 |
|
18991197b Use --build-id ld... |
568 569 570 571 572 |
# 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 += $(LDFLAGS_BUILD_ID) |
5d7d18f5b kbuild: make it p... |
573 574 575 |
ifeq ($(CONFIG_STRIP_ASM_SYMS),y) LDFLAGS_vmlinux += -X endif |
1da177e4c Linux-2.6.12-rc2 |
576 |
# Default kernel image to build when no specific target is given. |
070b98bfd kbuild: trivial f... |
577 |
# KBUILD_IMAGE may be overruled on the command line or |
1da177e4c Linux-2.6.12-rc2 |
578 579 580 581 582 583 584 585 586 587 588 589 590 |
# 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 kbuild: trivial f... |
591 |
# makefile but the argument can be passed to make if needed. |
1da177e4c Linux-2.6.12-rc2 |
592 |
# |
df9df036d kbuild: fix 'make... |
593 |
MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
1da177e4c Linux-2.6.12-rc2 |
594 |
export MODLIB |
ac031f26e kbuild: add optio... |
595 |
# |
2ea038917 Revert "kbuild: s... |
596 597 598 599 |
# INSTALL_MOD_STRIP, if defined, will cause modules to be # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then # the default option --strip-debug will be used. Otherwise, # INSTALL_MOD_STRIP will used as the options to the strip command. |
ac031f26e kbuild: add optio... |
600 601 |
ifdef INSTALL_MOD_STRIP ifeq ($(INSTALL_MOD_STRIP),1) |
2ea038917 Revert "kbuild: s... |
602 |
mod_strip_cmd = $(STRIP) --strip-debug |
ac031f26e kbuild: add optio... |
603 |
else |
2ea038917 Revert "kbuild: s... |
604 |
mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) |
ac031f26e kbuild: add optio... |
605 606 |
endif # INSTALL_MOD_STRIP=1 else |
2ea038917 Revert "kbuild: s... |
607 |
mod_strip_cmd = true |
ac031f26e kbuild: add optio... |
608 609 |
endif # INSTALL_MOD_STRIP export mod_strip_cmd |
1da177e4c Linux-2.6.12-rc2 |
610 611 |
ifeq ($(KBUILD_EXTMOD),) |
3a65dfe8c [BLOCK] Move all ... |
612 |
core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ |
1da177e4c Linux-2.6.12-rc2 |
613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 |
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 kbuild: trivial f... |
633 |
# vmlinux is built from the objects selected by $(vmlinux-init) and |
1da177e4c Linux-2.6.12-rc2 |
634 |
# $(vmlinux-main). Most are built-in.o files from top-level directories |
2462566f2 kbuild: add a mis... |
635 |
# in the kernel tree, others are specified in arch/$(ARCH)/Makefile. |
1da177e4c Linux-2.6.12-rc2 |
636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 |
# 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) $(vmlinux-main) |
6752ed90d Kbuild: allow arc... |
661 |
vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds |
85bd2fddd kbuild: fix secti... |
662 |
export KBUILD_VMLINUX_OBJS := $(vmlinux-all) |
1da177e4c Linux-2.6.12-rc2 |
663 664 665 666 667 668 669 |
# Rule to link vmlinux - also used during CONFIG_KALLSYMS # May be overridden by arch/$(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 kbuild: do sectio... |
670 |
$(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) |
1da177e4c Linux-2.6.12-rc2 |
671 672 673 674 |
# Generate new vmlinux version quiet_cmd_vmlinux_version = GEN .version cmd_vmlinux_version = set -e; \ |
4e25d8bb9 [PATCH] kbuild: a... |
675 676 677 678 679 680 681 |
if [ ! -r .version ]; then \ rm -f .version; \ echo 1 >.version; \ else \ mv .version .old_version; \ expr 0$$(cat .old_version) + 1 >.version; \ fi; \ |
1da177e4c Linux-2.6.12-rc2 |
682 683 684 |
$(MAKE) $(build)=init # Generate System.map |
070b98bfd kbuild: trivial f... |
685 |
quiet_cmd_sysmap = SYSMAP |
1da177e4c Linux-2.6.12-rc2 |
686 687 688 689 690 |
cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap # Link of vmlinux # If CONFIG_KALLSYMS is set .version is already updated # Generate System.map and verify that the content is consistent |
39ca371c4 [PATCH] kbuild: E... |
691 692 |
# Use + in front of the vmlinux_version rule to silent warning with make -j2 # First command is ':' to allow us to use + in front of the rule |
1da177e4c Linux-2.6.12-rc2 |
693 |
define rule_vmlinux__ |
39ca371c4 [PATCH] kbuild: E... |
694 |
: |
1da177e4c Linux-2.6.12-rc2 |
695 696 697 698 |
$(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) $(call cmd,vmlinux__) $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd |
4635281c8 kbuild: preperly ... |
699 700 701 702 703 704 |
$(Q)$(if $($(quiet)cmd_sysmap), \ echo ' $($(quiet)cmd_sysmap) System.map' &&) \ $(cmd_sysmap) $@ System.map; \ if [ $$? -ne 0 ]; then \ rm -f $@; \ /bin/false; \ |
1da177e4c Linux-2.6.12-rc2 |
705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 |
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 kbuild: preperly ... |
737 738 |
$(Q)$(if $($(quiet)cmd_sysmap), \ echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ |
1da177e4c Linux-2.6.12-rc2 |
739 |
$(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map |
4635281c8 kbuild: preperly ... |
740 741 742 |
$(Q)cmp -s System.map .tmp_System.map || \ (echo Inconsistent kallsyms data; \ echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ |
1da177e4c Linux-2.6.12-rc2 |
743 744 745 746 747 |
rm .tmp_kallsyms* ; /bin/false ) endef # Update vmlinux version before link # Use + in front of this rule to silent warning about make -j1 |
72ba47c1b kbuild: silence m... |
748 |
# First command is ':' to allow us to use + in front of this rule |
1da177e4c Linux-2.6.12-rc2 |
749 750 |
cmd_ksym_ld = $(cmd_vmlinux__) define rule_ksym_ld |
72ba47c1b kbuild: silence m... |
751 |
: |
1da177e4c Linux-2.6.12-rc2 |
752 753 754 755 756 757 758 |
+$(call cmd,vmlinux_version) $(call cmd,vmlinux__) $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd endef # Generate .S file with all kernel symbols quiet_cmd_kallsyms = KSYM $@ |
2ea038917 Revert "kbuild: s... |
759 760 |
cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ |
9bb482476 allow stripping o... |
761 |
|
2ea038917 Revert "kbuild: s... |
762 |
.tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE |
1da177e4c Linux-2.6.12-rc2 |
763 |
$(call if_changed_dep,as_o_S) |
2ea038917 Revert "kbuild: s... |
764 |
.tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) |
1da177e4c Linux-2.6.12-rc2 |
765 766 767 |
$(call cmd,kallsyms) # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version |
2ea038917 Revert "kbuild: s... |
768 769 |
.tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE $(call if_changed_rule,ksym_ld) |
1da177e4c Linux-2.6.12-rc2 |
770 |
|
2ea038917 Revert "kbuild: s... |
771 772 |
.tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE $(call if_changed,vmlinux__) |
1da177e4c Linux-2.6.12-rc2 |
773 |
|
2ea038917 Revert "kbuild: s... |
774 775 |
.tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE $(call if_changed,vmlinux__) |
1da177e4c Linux-2.6.12-rc2 |
776 777 778 |
# Needs to visit scripts/ before $(KALLSYMS) can be used. $(KALLSYMS): scripts ; |
33bc25eae kbuild: Add targe... |
779 780 781 782 783 784 785 786 787 |
# Generate some data for debugging strange kallsyms problems debug_kallsyms: .tmp_map$(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 Linux-2.6.12-rc2 |
788 |
endif # ifdef CONFIG_KALLSYMS |
741f98fe2 kbuild: do sectio... |
789 790 791 792 793 |
# 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 kbuild: fix vmlin... |
794 |
$(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^) |
741f98fe2 kbuild: do sectio... |
795 796 797 798 799 800 |
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 Linux-2.6.12-rc2 |
801 |
# vmlinux image - including updated kernel symbols |
310f8243a kbuild: link vmli... |
802 |
vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE |
0f836e5fe [PATCH] Add CONFI... |
803 |
ifdef CONFIG_HEADERS_CHECK |
0e7af8d04 [PATCH] Fix heade... |
804 |
$(Q)$(MAKE) -f $(srctree)/Makefile headers_check |
0f836e5fe [PATCH] Add CONFI... |
805 |
endif |
267c4025f markers: Add samp... |
806 807 808 |
ifdef CONFIG_SAMPLES $(Q)$(MAKE) $(build)=samples endif |
3794f3e81 docsrc: build Doc... |
809 810 811 |
ifdef CONFIG_BUILD_DOCSRC $(Q)$(MAKE) $(build)=Documentation endif |
741f98fe2 kbuild: do sectio... |
812 |
$(call vmlinux-modpost) |
1da177e4c Linux-2.6.12-rc2 |
813 |
$(call if_changed_rule,vmlinux__) |
4e25d8bb9 [PATCH] kbuild: a... |
814 |
$(Q)rm -f .old_version |
1da177e4c Linux-2.6.12-rc2 |
815 |
|
310f8243a kbuild: link vmli... |
816 |
# build vmlinux.o first to catch section mismatch errors early |
cf87dcd14 kbuild: fix build... |
817 818 819 |
ifdef CONFIG_KALLSYMS .tmp_vmlinux1: vmlinux.o endif |
90ebd878a kbuild: fix vmlin... |
820 821 822 |
modpost-init := $(filter-out init/built-in.o, $(vmlinux-init)) vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE |
741f98fe2 kbuild: do sectio... |
823 |
$(call if_changed_rule,vmlinux-modpost) |
1da177e4c Linux-2.6.12-rc2 |
824 825 826 827 828 829 830 831 832 |
# 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 kbuild: change kb... |
833 |
PHONY += $(vmlinux-dirs) |
5bb782690 kbuild: rename pr... |
834 |
$(vmlinux-dirs): prepare scripts |
1da177e4c Linux-2.6.12-rc2 |
835 |
$(Q)$(MAKE) $(build)=$@ |
cb58455c4 kbuild: KERNELREL... |
836 |
# Build the kernel release string |
cb58455c4 kbuild: KERNELREL... |
837 |
# |
1ef988569 kbuild: correct a... |
838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 |
# 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 [PATCH] kbuild: c... |
855 |
# localversion* (files without backups, containing '~') |
1ef988569 kbuild: correct a... |
856 857 858 859 860 861 862 863 864 |
# $(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 kbuild: KERNELREL... |
865 |
|
76c329563 [PATCH] kbuild: c... |
866 867 |
pattern = ".*/localversion[^~]*" string = $(shell cat /dev/null \ |
fd19e44f4 don't use 'localv... |
868 |
`find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`) |
cb58455c4 kbuild: KERNELREL... |
869 |
|
76c329563 [PATCH] kbuild: c... |
870 871 |
localver = $(subst $(space),, $(string) \ $(patsubst "%",%,$(CONFIG_LOCALVERSION))) |
070b98bfd kbuild: trivial f... |
872 |
|
cb58455c4 kbuild: KERNELREL... |
873 874 |
# If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called # and if the SCM is know a tag from the SCM is appended. |
070b98bfd kbuild: trivial f... |
875 |
# The appended tag is determined by the SCM used. |
cb58455c4 kbuild: KERNELREL... |
876 |
# |
b925dbfe3 kbuild: fix 'make... |
877 878 879 |
# .scmversion is used when generating rpm packages so we do not loose # the version information from the SCM when we do the build of the kernel # from the copied source |
cb58455c4 kbuild: KERNELREL... |
880 |
ifdef CONFIG_LOCALVERSION_AUTO |
b925dbfe3 kbuild: fix 'make... |
881 882 883 884 885 886 887 |
ifeq ($(wildcard .scmversion),) _localver-auto = $(shell $(CONFIG_SHELL) \ $(srctree)/scripts/setlocalversion $(srctree)) else _localver-auto = $(shell cat .scmversion 2> /dev/null) endif |
cb58455c4 kbuild: KERNELREL... |
888 889 890 891 |
localver-auto = $(LOCALVERSION)$(_localver-auto) endif localver-full = $(localver)$(localver-auto) |
f1d28fb04 kconfig: move .ke... |
892 |
# Store (new) KERNELRELASE string in include/config/kernel.release |
2244cbd8a kbuild: create .k... |
893 |
kernelrelease = $(KERNELVERSION)$(localver-full) |
f1d28fb04 kconfig: move .ke... |
894 |
include/config/kernel.release: include/config/auto.conf FORCE |
2244cbd8a kbuild: create .k... |
895 896 |
$(Q)rm -f $@ $(Q)echo $(kernelrelease) > $@ |
cb58455c4 kbuild: KERNELREL... |
897 |
|
1da177e4c Linux-2.6.12-rc2 |
898 |
# Things we need to do before we recursively start building the kernel |
5bb782690 kbuild: rename pr... |
899 900 901 902 |
# 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 Linux-2.6.12-rc2 |
903 |
|
5bb782690 kbuild: rename pr... |
904 |
# Listed in dependency order |
4f1933620 kbuild: change kb... |
905 |
PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 |
5bb782690 kbuild: rename pr... |
906 |
|
86feeaa81 kbuild: full depe... |
907 |
# prepare3 is used to check if we are building in a separate output directory, |
1da177e4c Linux-2.6.12-rc2 |
908 909 910 |
# and if so do: # 1) Check that make has not been executed in the kernel src $(srctree) # 2) Create the include2 directory, used for the second asm symlink |
f1d28fb04 kconfig: move .ke... |
911 |
prepare3: include/config/kernel.release |
1da177e4c Linux-2.6.12-rc2 |
912 |
ifneq ($(KBUILD_SRC),) |
fd54f5028 kbuild: use KECHO... |
913 |
@$(kecho) ' Using $(srctree) as source for kernel' |
c955ccafc kconfig: fix .con... |
914 |
$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ |
1da177e4c Linux-2.6.12-rc2 |
915 916 917 918 |
echo " $(srctree) is not clean, please run 'make mrproper'";\ echo " in the '$(srctree)' directory.";\ /bin/false; \ fi; |
7a48bdd01 kbuild: fix O=.. ... |
919 920 |
$(Q)if [ ! -d include2 ]; then \ mkdir -p include2; \ |
2e57d0511 kbuild: asm symli... |
921 |
ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm; \ |
7a48bdd01 kbuild: fix O=.. ... |
922 |
fi |
1da177e4c Linux-2.6.12-rc2 |
923 |
endif |
86feeaa81 kbuild: full depe... |
924 925 |
# prepare2 creates a makefile if using a separate output directory prepare2: prepare3 outputmakefile |
1da177e4c Linux-2.6.12-rc2 |
926 |
|
3eb3c740f [PATCH] fix linux... |
927 928 |
prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \ include/asm include/config/auto.conf |
7bb9d092d kbuild: fix first... |
929 |
$(cmd_crmodverdir) |
1da177e4c Linux-2.6.12-rc2 |
930 |
|
5bb782690 kbuild: rename pr... |
931 932 933 |
archprepare: prepare1 scripts_basic prepare0: archprepare FORCE |
8d36a6236 kbuild: fix gener... |
934 |
$(Q)$(MAKE) $(build)=. |
c53aeca05 kbuild: complain ... |
935 |
$(Q)$(MAKE) $(build)=. missing-syscalls |
86feeaa81 kbuild: full depe... |
936 |
|
1da177e4c Linux-2.6.12-rc2 |
937 |
# All the preparing.. |
d395efb54 [PATCH] Kbuild: R... |
938 |
prepare: prepare0 |
1da177e4c Linux-2.6.12-rc2 |
939 |
|
070b98bfd kbuild: trivial f... |
940 941 |
# Leave this as default for preprocessing vmlinux.lds.S, which is now # done in arch/$(ARCH)/kernel/Makefile |
1da177e4c Linux-2.6.12-rc2 |
942 943 |
export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) |
fc333b2df kbuild: check asm... |
944 945 |
# The asm symlink changes when $(ARCH) changes. # Detect this and ask user to run make mrproper |
dcc2da1a9 kbuild: improve c... |
946 |
# If asm is a stale symlink (point to dir that does not exist) remove it |
2e57d0511 kbuild: asm symli... |
947 948 949 950 951 |
define check-symlink set -e; \ if [ -L include/asm ]; then \ asmlink=`readlink include/asm | cut -d '-' -f 2`; \ if [ "$$asmlink" != "$(SRCARCH)" ]; then \ |
fc333b2df kbuild: check asm... |
952 953 |
echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \ echo " set ARCH or save .config and run 'make mrproper' to fix it"; \ |
2e57d0511 kbuild: asm symli... |
954 955 |
exit 1; \ fi; \ |
dcc2da1a9 kbuild: improve c... |
956 957 958 959 |
test -e $$asmlink || rm include/asm; \ elif [ -d include/asm ]; then \ echo "ERROR: $@ is a directory but a symlink was expected";\ exit 1; \ |
fc333b2df kbuild: check asm... |
960 |
fi |
2e57d0511 kbuild: asm symli... |
961 962 963 |
endef # We create the target directory of the symlink if it does |
5a9e67b1a trivial: chack ->... |
964 |
# not exist so the test in check-symlink works and we have a |
2e57d0511 kbuild: asm symli... |
965 966 967 |
# directory for generated filesas used by some architectures. define create-symlink if [ ! -L include/asm ]; then \ |
fd54f5028 kbuild: use KECHO... |
968 |
$(kecho) ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \ |
2e57d0511 kbuild: asm symli... |
969 970 971 972 |
if [ ! -d include/asm-$(SRCARCH) ]; then \ mkdir -p include/asm-$(SRCARCH); \ fi; \ ln -fsn asm-$(SRCARCH) $@; \ |
fc333b2df kbuild: check asm... |
973 |
fi |
2e57d0511 kbuild: asm symli... |
974 975 976 977 978 |
endef include/asm: FORCE $(Q)$(check-symlink) $(Q)$(create-symlink) |
1da177e4c Linux-2.6.12-rc2 |
979 |
|
1da177e4c Linux-2.6.12-rc2 |
980 981 982 983 984 985 986 |
# 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 kbuild: introduce... |
987 988 989 990 991 992 993 |
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 Linux-2.6.12-rc2 |
994 995 |
define filechk_version.h |
63104eec2 kbuild: introduce... |
996 997 998 |
(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 Linux-2.6.12-rc2 |
999 |
endef |
63104eec2 kbuild: introduce... |
1000 |
include/linux/version.h: $(srctree)/Makefile FORCE |
1da177e4c Linux-2.6.12-rc2 |
1001 |
$(call filechk,version.h) |
63104eec2 kbuild: introduce... |
1002 1003 |
include/linux/utsrelease.h: include/config/kernel.release FORCE $(call filechk,utsrelease.h) |
179efcb47 kbuild: add heade... |
1004 1005 1006 |
PHONY += headerdep headerdep: $(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl |
1da177e4c Linux-2.6.12-rc2 |
1007 |
# --------------------------------------------------------------------------- |
4f1933620 kbuild: change kb... |
1008 |
PHONY += depend dep |
1da177e4c Linux-2.6.12-rc2 |
1009 1010 1011 1012 |
depend dep: @echo '*** Warning: make $@ is unnecessary now.' # --------------------------------------------------------------------------- |
88ecf814c firmware: Add fir... |
1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 |
# 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 Basic implementat... |
1023 |
# Kernel headers |
8d730cfb5 Basic implementat... |
1024 |
|
e6883b187 kbuild: refactor ... |
1025 1026 |
#Default location for installed headers export INSTALL_HDR_PATH = $(objtree)/usr |
6d7162758 New 'make headers... |
1027 |
|
e6883b187 kbuild: refactor ... |
1028 |
hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj |
2fb9b1bd9 kbuild: prepare h... |
1029 1030 1031 1032 1033 1034 1035 1036 |
# Find out where the Kbuild file is located to support # arch/$(ARCH)/include/asm hdr-dir = $(strip \ $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild), \ arch/$(hdr-arch)/include/asm, include/asm-$(hdr-arch))) # If we do an all arch process set dst to asm-$(hdr-arch) hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) |
e6883b187 kbuild: refactor ... |
1037 1038 1039 |
PHONY += __headers __headers: include/linux/version.h scripts_basic FORCE |
398477d4b Merge git://git.i... |
1040 |
$(Q)$(MAKE) $(build)=scripts scripts/unifdef |
e6883b187 kbuild: refactor ... |
1041 1042 |
PHONY += headers_install_all |
2fb9b1bd9 kbuild: prepare h... |
1043 1044 |
headers_install_all: $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install |
6d7162758 New 'make headers... |
1045 |
|
8d730cfb5 Basic implementat... |
1046 |
PHONY += headers_install |
e6883b187 kbuild: refactor ... |
1047 |
headers_install: __headers |
2fb9b1bd9 kbuild: prepare h... |
1048 1049 |
$(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \ $(error Headers not exportable for the $(SRCARCH) architecture)) |
88181ec30 kbuild: only one ... |
1050 |
$(Q)$(MAKE) $(hdr-inst)=include |
2fb9b1bd9 kbuild: prepare h... |
1051 |
$(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) |
8d730cfb5 Basic implementat... |
1052 |
|
1f85712e6 [PATCH] new tople... |
1053 1054 |
PHONY += headers_check_all headers_check_all: headers_install_all |
2fb9b1bd9 kbuild: prepare h... |
1055 |
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check |
1f85712e6 [PATCH] new tople... |
1056 |
|
684753599 Basic implementat... |
1057 1058 |
PHONY += headers_check headers_check: headers_install |
88181ec30 kbuild: only one ... |
1059 |
$(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1 |
2fb9b1bd9 kbuild: prepare h... |
1060 |
$(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1 |
684753599 Basic implementat... |
1061 |
|
8d730cfb5 Basic implementat... |
1062 |
# --------------------------------------------------------------------------- |
1da177e4c Linux-2.6.12-rc2 |
1063 1064 1065 |
# Modules ifdef CONFIG_MODULES |
070b98bfd kbuild: trivial f... |
1066 |
# By default, build modules as well |
1da177e4c Linux-2.6.12-rc2 |
1067 1068 1069 1070 |
all: modules # Build modules |
551559e13 kbuild: implement... |
1071 1072 1073 1074 |
# # 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 Linux-2.6.12-rc2 |
1075 |
|
4f1933620 kbuild: change kb... |
1076 |
PHONY += modules |
1da177e4c Linux-2.6.12-rc2 |
1077 |
modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) |
551559e13 kbuild: implement... |
1078 |
$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order |
fd54f5028 kbuild: use KECHO... |
1079 |
@$(kecho) ' Building modules, stage 2.'; |
b805aa0e7 kbuild: make -rR ... |
1080 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
44463f7dd firmware: create ... |
1081 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild |
1da177e4c Linux-2.6.12-rc2 |
1082 1083 1084 |
# Target to prepare building external modules |
4f1933620 kbuild: change kb... |
1085 |
PHONY += modules_prepare |
5bb782690 kbuild: rename pr... |
1086 |
modules_prepare: prepare scripts |
1da177e4c Linux-2.6.12-rc2 |
1087 1088 |
# Target to install modules |
4f1933620 kbuild: change kb... |
1089 |
PHONY += modules_install |
1da177e4c Linux-2.6.12-rc2 |
1090 |
modules_install: _modinst_ _modinst_post |
4f1933620 kbuild: change kb... |
1091 |
PHONY += _modinst_ |
1da177e4c Linux-2.6.12-rc2 |
1092 |
_modinst_: |
ce454d4d7 [PATCH] kbuild: W... |
1093 |
@if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ |
1da177e4c Linux-2.6.12-rc2 |
1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 |
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 kbuild: implement... |
1106 |
@cp -f $(objtree)/modules.order $(MODLIB)/ |
b805aa0e7 kbuild: make -rR ... |
1107 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1da177e4c Linux-2.6.12-rc2 |
1108 |
|
50a8ec31c kbuild: disable d... |
1109 |
# This depmod is only for convenience to give the initial |
1da177e4c Linux-2.6.12-rc2 |
1110 1111 |
# boot a modules.dep even before / is mounted read-write. However the # boot script depmod is the master version. |
4f1933620 kbuild: change kb... |
1112 |
PHONY += _modinst_post |
1da177e4c Linux-2.6.12-rc2 |
1113 |
_modinst_post: _modinst_ |
88ecf814c firmware: Add fir... |
1114 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst |
50a8ec31c kbuild: disable d... |
1115 |
$(call cmd,depmod) |
1da177e4c Linux-2.6.12-rc2 |
1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 |
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 Linux-2.6.12-rc2 |
1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 |
### # 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' |
f14875a3e kbuild: support i... |
1144 |
MRPROPER_DIRS += include/config include2 usr/include include/generated |
50aa88e28 kbuild: ensure mr... |
1145 |
MRPROPER_FILES += .config .config.old include/asm .version .old_version \ |
3eb3c740f [PATCH] fix linux... |
1146 1147 |
include/linux/autoconf.h include/linux/version.h \ include/linux/utsrelease.h \ |
7d3cc8b6d Don't clean bound... |
1148 |
include/linux/bounds.h include/asm*/asm-offsets.h \ |
c28ca3aaa kbuild: remove Mo... |
1149 |
Module.symvers Module.markers tags TAGS cscope* |
1da177e4c Linux-2.6.12-rc2 |
1150 1151 1152 1153 1154 |
# clean - Delete most, but leave enough to build external modules # clean: rm-dirs := $(CLEAN_DIRS) clean: rm-files := $(CLEAN_FILES) |
3794f3e81 docsrc: build Doc... |
1155 |
clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs) Documentation) |
1da177e4c Linux-2.6.12-rc2 |
1156 |
|
4f1933620 kbuild: change kb... |
1157 |
PHONY += $(clean-dirs) clean archclean |
1da177e4c Linux-2.6.12-rc2 |
1158 1159 1160 1161 1162 1163 1164 |
$(clean-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) clean: archclean $(clean-dirs) $(call cmd,rmdirs) $(call cmd,rmfiles) @find . $(RCS_FIND_IGNORE) \ |
070b98bfd kbuild: trivial f... |
1165 |
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
15fde6751 kbuild: support f... |
1166 |
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ |
d35cb360c markers: fix dupl... |
1167 |
-o -name '*.symtypes' -o -name 'modules.order' \ |
6b36ab27d kbuild: make clea... |
1168 |
-o -name 'Module.markers' -o -name '.tmp_*.o.*' \) \ |
1da177e4c Linux-2.6.12-rc2 |
1169 1170 1171 1172 1173 1174 1175 |
-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 kbuild: change kb... |
1176 |
PHONY += $(mrproper-dirs) mrproper archmrproper |
1da177e4c Linux-2.6.12-rc2 |
1177 1178 1179 1180 1181 1182 1183 1184 1185 |
$(mrproper-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) mrproper: clean archmrproper $(mrproper-dirs) $(call cmd,rmdirs) $(call cmd,rmfiles) # distclean # |
4f1933620 kbuild: change kb... |
1186 |
PHONY += distclean |
1da177e4c Linux-2.6.12-rc2 |
1187 1188 1189 |
distclean: mrproper @find $(srctree) $(RCS_FIND_IGNORE) \ |
070b98bfd kbuild: trivial f... |
1190 |
\( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
1da177e4c Linux-2.6.12-rc2 |
1191 |
-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ |
070b98bfd kbuild: trivial f... |
1192 |
-o -name '.*.rej' -o -size 0 \ |
1da177e4c Linux-2.6.12-rc2 |
1193 1194 1195 1196 1197 1198 1199 1200 |
-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ -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 kbuild: add depen... |
1201 |
%pkg: include/config/kernel.release FORCE |
6c2133e11 kbuild: fix make ... |
1202 |
$(Q)$(MAKE) $(build)=$(package-dir) $@ |
031ecc6de kbuild: add depen... |
1203 |
rpm: include/config/kernel.release FORCE |
6c2133e11 kbuild: fix make ... |
1204 |
$(Q)$(MAKE) $(build)=$(package-dir) $@ |
1da177e4c Linux-2.6.12-rc2 |
1205 1206 1207 1208 |
# Brief documentation of the typical targets used # --------------------------------------------------------------------------- |
5dffbe811 kbuild: show defc... |
1209 |
boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) |
1da177e4c Linux-2.6.12-rc2 |
1210 |
boards := $(notdir $(boards)) |
5dffbe811 kbuild: show defc... |
1211 1212 |
board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) board-dirs := $(sort $(notdir $(board-dirs:/=))) |
1da177e4c Linux-2.6.12-rc2 |
1213 1214 1215 |
help: @echo 'Cleaning targets:' |
5ea084ef9 Use consistent ca... |
1216 |
@echo ' clean - Remove most generated files but keep the config and' |
5cc8d246d kbuild: add distc... |
1217 |
@echo ' enough build support to build external modules' |
5ea084ef9 Use consistent ca... |
1218 |
@echo ' mrproper - Remove all generated files + config + various backup files' |
5cc8d246d kbuild: add distc... |
1219 |
@echo ' distclean - mrproper + remove editor backup and patch files' |
1da177e4c Linux-2.6.12-rc2 |
1220 1221 1222 1223 1224 1225 1226 1227 |
@echo '' @echo 'Configuration targets:' @$(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 kbuild: document ... |
1228 |
@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
88ecf814c firmware: Add fir... |
1229 1230 |
@echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' |
1da177e4c Linux-2.6.12-rc2 |
1231 1232 |
@echo ' dir/ - Build all files in dir and below' @echo ' dir/file.[ois] - Build specified target only' |
155ad605b [PATCH] kbuild: b... |
1233 |
@echo ' dir/file.ko - Build module including final link' |
c4d5ee67c kbuild: "make pre... |
1234 |
@echo ' modules_prepare - Set up for building external modules' |
1da177e4c Linux-2.6.12-rc2 |
1235 1236 |
@echo ' tags/TAGS - Generate tags file for editors' @echo ' cscope - Generate cscope index' |
6d1288425 [PATCH] kbuild: a... |
1237 |
@echo ' kernelrelease - Output the release version string' |
cb58455c4 kbuild: KERNELREL... |
1238 |
@echo ' kernelversion - Output the version stored in Makefile' |
2fb9b1bd9 kbuild: prepare h... |
1239 |
@echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ |
59df3230f [PATCH] `make hel... |
1240 |
echo ' (default: $(INSTALL_HDR_PATH))'; \ |
2fb9b1bd9 kbuild: prepare h... |
1241 |
echo '' |
1da177e4c Linux-2.6.12-rc2 |
1242 |
@echo 'Static analysers' |
1da177e4c Linux-2.6.12-rc2 |
1243 1244 |
@echo ' checkstack - Generate a list of stack hogs' @echo ' namespacecheck - Name space analysis on compiled kernel' |
aa025e7d5 kbuild: document ... |
1245 |
@echo ' versioncheck - Sanity check on version.h usage' |
ec2d987f9 kbuild: add 'incl... |
1246 |
@echo ' includecheck - Check for duplicate included header files' |
295ac0518 kbuild: call expo... |
1247 |
@echo ' export_report - List the usages of all exported symbols' |
179efcb47 kbuild: add heade... |
1248 1249 |
@echo ' headers_check - Sanity check on exported headers' @echo ' headerdep - Detect inclusion cycles in headers'; \ |
2fb9b1bd9 kbuild: prepare h... |
1250 |
echo '' |
1da177e4c Linux-2.6.12-rc2 |
1251 |
@echo 'Kernel packaging:' |
6c2133e11 kbuild: fix make ... |
1252 |
@$(MAKE) $(build)=$(package-dir) help |
1da177e4c Linux-2.6.12-rc2 |
1253 1254 1255 1256 |
@echo '' @echo 'Documentation targets:' @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp @echo '' |
01dee1881 kbuild: fix help ... |
1257 |
@echo 'Architecture specific targets ($(SRCARCH)):' |
1da177e4c Linux-2.6.12-rc2 |
1258 |
@$(if $(archhelp),$(archhelp),\ |
01dee1881 kbuild: fix help ... |
1259 |
echo ' No architecture specific help defined for $(SRCARCH)') |
1da177e4c Linux-2.6.12-rc2 |
1260 1261 1262 1263 1264 1265 |
@echo '' @$(if $(boards), \ $(foreach b, $(boards), \ printf " %-24s - Build for %s\ " $(b) $(subst _defconfig,,$(b));) \ echo '') |
5dffbe811 kbuild: show defc... |
1266 1267 1268 1269 1270 1271 1272 |
@$(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 Linux-2.6.12-rc2 |
1273 1274 |
@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' |
45d506bd6 kbuild: make V=2 ... |
1275 |
@echo ' make V=2 [targets] 2 => give reason for rebuild of target' |
1da177e4c Linux-2.6.12-rc2 |
1276 |
@echo ' make O=dir [targets] Locate all output files in "dir", including .config' |
701842e3b kbuild: documenta... |
1277 1278 |
@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 Linux-2.6.12-rc2 |
1279 1280 1281 |
@echo '' @echo 'Execute "make" or "make all" to build all targets marked with [*] ' @echo 'For further info see the ./README file' |
5dffbe811 kbuild: show defc... |
1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 |
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 Linux-2.6.12-rc2 |
1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 |
# 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 kbuild: trivial f... |
1316 |
# Install the modules built in the module directory |
1da177e4c Linux-2.6.12-rc2 |
1317 1318 1319 1320 |
# Assumes install directory is already created # We are always building modules KBUILD_MODULES := 1 |
4f1933620 kbuild: change kb... |
1321 |
PHONY += crmodverdir |
1da177e4c Linux-2.6.12-rc2 |
1322 |
crmodverdir: |
7bb9d092d kbuild: fix first... |
1323 |
$(cmd_crmodverdir) |
1da177e4c Linux-2.6.12-rc2 |
1324 |
|
4f1933620 kbuild: change kb... |
1325 |
PHONY += $(objtree)/Module.symvers |
1da177e4c Linux-2.6.12-rc2 |
1326 1327 1328 1329 1330 1331 1332 1333 |
$(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 kbuild: change kb... |
1334 |
PHONY += $(module-dirs) modules |
1da177e4c Linux-2.6.12-rc2 |
1335 1336 1337 1338 |
$(module-dirs): crmodverdir $(objtree)/Module.symvers $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) modules: $(module-dirs) |
fd54f5028 kbuild: use KECHO... |
1339 |
@$(kecho) ' Building modules, stage 2.'; |
b805aa0e7 kbuild: make -rR ... |
1340 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1da177e4c Linux-2.6.12-rc2 |
1341 |
|
4f1933620 kbuild: change kb... |
1342 |
PHONY += modules_install |
a67dc21a3 kbuild: run depmo... |
1343 |
modules_install: _emodinst_ _emodinst_post |
e63046630 kbuild: remove a ... |
1344 |
|
4f1933620 kbuild: change kb... |
1345 1346 |
install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) PHONY += _emodinst_ |
a67dc21a3 kbuild: run depmo... |
1347 |
_emodinst_: |
a67dc21a3 kbuild: run depmo... |
1348 |
$(Q)mkdir -p $(MODLIB)/$(install-dir) |
b805aa0e7 kbuild: make -rR ... |
1349 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1da177e4c Linux-2.6.12-rc2 |
1350 |
|
4f1933620 kbuild: change kb... |
1351 |
PHONY += _emodinst_post |
a67dc21a3 kbuild: run depmo... |
1352 1353 |
_emodinst_post: _emodinst_ $(call cmd,depmod) |
1da177e4c Linux-2.6.12-rc2 |
1354 |
clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) |
4f1933620 kbuild: change kb... |
1355 |
PHONY += $(clean-dirs) clean |
1da177e4c Linux-2.6.12-rc2 |
1356 1357 1358 1359 |
$(clean-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) clean: rm-dirs := $(MODVERDIR) |
0c56042ad kbuild: clean Mod... |
1360 1361 1362 |
clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers \ $(KBUILD_EXTMOD)/Module.markers \ $(KBUILD_EXTMOD)/modules.order |
1da177e4c Linux-2.6.12-rc2 |
1363 1364 |
clean: $(clean-dirs) $(call cmd,rmdirs) |
c34114f4a kbuild: clean Mod... |
1365 |
$(call cmd,rmfiles) |
1da177e4c Linux-2.6.12-rc2 |
1366 |
@find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \ |
070b98bfd kbuild: trivial f... |
1367 |
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
1da177e4c Linux-2.6.12-rc2 |
1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 |
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ -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 kbuild: support b... |
1379 1380 |
# Dummies... |
4f1933620 kbuild: change kb... |
1381 |
PHONY += prepare scripts |
06300b21f kbuild: support b... |
1382 1383 |
prepare: ; scripts: ; |
1da177e4c Linux-2.6.12-rc2 |
1384 1385 1386 1387 |
endif # KBUILD_EXTMOD # Generate tags for editors # --------------------------------------------------------------------------- |
a680eedc6 tags and cscope s... |
1388 1389 |
quiet_cmd_tags = GEN $@ cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ |
1da177e4c Linux-2.6.12-rc2 |
1390 |
|
a680eedc6 tags and cscope s... |
1391 |
tags TAGS cscope: FORCE |
1da177e4c Linux-2.6.12-rc2 |
1392 |
$(call cmd,tags) |
1da177e4c Linux-2.6.12-rc2 |
1393 1394 |
# Scripts to check various things for consistency # --------------------------------------------------------------------------- |
1da177e4c Linux-2.6.12-rc2 |
1395 1396 1397 |
includecheck: find * $(RCS_FIND_IGNORE) \ -name '*.[hcS]' -type f -print | sort \ |
800074345 kbuild: Add missi... |
1398 |
| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl |
1da177e4c Linux-2.6.12-rc2 |
1399 1400 1401 1402 |
versioncheck: find * $(RCS_FIND_IGNORE) \ -name '*.[hcS]' -type f -print | sort \ |
800074345 kbuild: Add missi... |
1403 |
| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl |
1da177e4c Linux-2.6.12-rc2 |
1404 |
|
1da177e4c Linux-2.6.12-rc2 |
1405 1406 |
namespacecheck: $(PERL) $(srctree)/scripts/namespace.pl |
295ac0518 kbuild: call expo... |
1407 1408 |
export_report: $(PERL) $(srctree)/scripts/export_report.pl |
1da177e4c Linux-2.6.12-rc2 |
1409 1410 |
endif #ifeq ($(config-targets),1) endif #ifeq ($(mixed-targets),1) |
c30a02e02 kbuild: `make ker... |
1411 |
PHONY += checkstack kernelrelease kernelversion |
e3ccf6e36 [PATCH] uml: add ... |
1412 |
|
011e3a9ad [PATCH] Fix cross... |
1413 1414 1415 1416 1417 1418 1419 1420 1421 |
# 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 Linux-2.6.12-rc2 |
1422 1423 |
checkstack: $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ |
011e3a9ad [PATCH] Fix cross... |
1424 |
$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) |
1da177e4c Linux-2.6.12-rc2 |
1425 1426 |
kernelrelease: |
f1d28fb04 kconfig: move .ke... |
1427 1428 |
$(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \ $(error kernelrelease not valid - run 'make prepare' to update it)) |
cb58455c4 kbuild: KERNELREL... |
1429 |
kernelversion: |
2244cbd8a kbuild: create .k... |
1430 |
@echo $(KERNELVERSION) |
1da177e4c Linux-2.6.12-rc2 |
1431 |
|
06300b21f kbuild: support b... |
1432 1433 |
# Single targets # --------------------------------------------------------------------------- |
bc2546a67 kbuild: fix build... |
1434 |
# Single targets are compatible with: |
e1b8513d2 Typoes: "whith" ... |
1435 |
# - build with mixed source and output |
bc2546a67 kbuild: fix build... |
1436 1437 1438 1439 1440 1441 1442 |
# - build with separate output dir 'make O=...' # - external modules # # target-dir => where to store outputfile # build-dir => directory in kernel source tree to use ifeq ($(KBUILD_EXTMOD),) |
aa360879e kbuild: fix make ... |
1443 |
build-dir = $(patsubst %/,%,$(dir $@)) |
bc2546a67 kbuild: fix build... |
1444 1445 1446 1447 1448 1449 |
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 kbuild: fix make ... |
1450 |
%.s: %.c prepare scripts FORCE |
bc2546a67 kbuild: fix build... |
1451 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65 kbuild: fix make ... |
1452 |
%.i: %.c prepare scripts FORCE |
bc2546a67 kbuild: fix build... |
1453 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65 kbuild: fix make ... |
1454 |
%.o: %.c prepare scripts FORCE |
bc2546a67 kbuild: fix build... |
1455 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65 kbuild: fix make ... |
1456 |
%.lst: %.c prepare scripts FORCE |
bc2546a67 kbuild: fix build... |
1457 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65 kbuild: fix make ... |
1458 |
%.s: %.S prepare scripts FORCE |
bc2546a67 kbuild: fix build... |
1459 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
f6ecebd65 kbuild: fix make ... |
1460 |
%.o: %.S prepare scripts FORCE |
bc2546a67 kbuild: fix build... |
1461 |
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
15fde6751 kbuild: support f... |
1462 1463 |
%.symtypes: %.c prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
06300b21f kbuild: support b... |
1464 |
|
bc2546a67 kbuild: fix build... |
1465 |
# Modules |
31110ebbe kbuild: fix make ... |
1466 1467 1468 1469 1470 |
/: prepare scripts FORCE $(cmd_crmodverdir) $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ $(build)=$(build-dir) %/: prepare scripts FORCE |
7bb9d092d kbuild: fix first... |
1471 |
$(cmd_crmodverdir) |
06300b21f kbuild: support b... |
1472 |
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
bc2546a67 kbuild: fix build... |
1473 1474 |
$(build)=$(build-dir) %.ko: prepare scripts FORCE |
7bb9d092d kbuild: fix first... |
1475 |
$(cmd_crmodverdir) |
06300b21f kbuild: support b... |
1476 |
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
bc2546a67 kbuild: fix build... |
1477 |
$(build)=$(build-dir) $(@:.ko=.o) |
b805aa0e7 kbuild: make -rR ... |
1478 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
06300b21f kbuild: support b... |
1479 |
|
1da177e4c Linux-2.6.12-rc2 |
1480 1481 1482 1483 1484 1485 1486 1487 |
# 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 fix typo "is" -> ... |
1488 |
# Run depmod only if we have System.map and depmod is executable |
50a8ec31c kbuild: disable d... |
1489 1490 |
quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) cmd_depmod = \ |
d8d2e78a0 kbuild: allow dep... |
1491 |
if [ -r System.map -a -x $(DEPMOD) ]; then \ |
50a8ec31c kbuild: disable d... |
1492 |
$(DEPMOD) -ae -F System.map \ |
75bccd881 kbuild: remove un... |
1493 |
$(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) ) \ |
50a8ec31c kbuild: disable d... |
1494 1495 |
$(KERNELRELEASE); \ fi |
7bb9d092d kbuild: fix first... |
1496 |
# Create temporary dir for module support files |
ab19f8794 kbuild: fix modul... |
1497 1498 1499 |
# clean it up only when building all modules cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) |
1da177e4c Linux-2.6.12-rc2 |
1500 |
|
222d394d3 kbuild: enable 'm... |
1501 |
a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ |
d8672b40d kbuild: expand -I... |
1502 |
$(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \ |
5e8d780d7 kbuild: fix ia64 ... |
1503 |
$(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) |
1da177e4c Linux-2.6.12-rc2 |
1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 |
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 Linux-2.6.12-rc2 |
1517 1518 1519 1520 |
# 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 Linux-2.6.12-rc2 |
1521 |
endif # skip-makefile |
4f1933620 kbuild: change kb... |
1522 |
PHONY += FORCE |
1da177e4c Linux-2.6.12-rc2 |
1523 |
FORCE: |
4f1933620 kbuild: change kb... |
1524 |
|
4f1933620 kbuild: change kb... |
1525 |
# Declare the contents of the .PHONY variable as phony. We keep that |
fe8d0a410 kbuild: fix a few... |
1526 |
# information in a variable so we can use it in if_changed and friends. |
4f1933620 kbuild: change kb... |
1527 |
.PHONY: $(PHONY) |