Eric Lee / linux-smarc-t335x-v3.2

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VERSION = 2

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VERSION = 2

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PATCHLEVEL = 6

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PATCHLEVEL = 6

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SUBLEVEL = 31

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SUBLEVEL = 31

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EXTRAVERSION = -rc2

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EXTRAVERSION = -rc3

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NAME = Man-Eating Seals of Antiquity

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NAME = Man-Eating Seals of Antiquity

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# *DOCUMENTATION*

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# *DOCUMENTATION*

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# To see a list of typical targets execute "make help"

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# To see a list of typical targets execute "make help"

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# More info can be located in ./README

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# More info can be located in ./README

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# Comments in this file are targeted only to the developer, do not

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# Comments in this file are targeted only to the developer, do not

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# expect to learn how to build the kernel reading this file.

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# expect to learn how to build the kernel reading this file.

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# Do not:

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# Do not:

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# o use make's built-in rules and variables

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# 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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# (this increases performance and avoids hard-to-debug behaviour);

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# o print "Entering directory ...";

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# o print "Entering directory ...";

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MAKEFLAGS += -rR --no-print-directory

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MAKEFLAGS += -rR --no-print-directory

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# We are using a recursive build, so we need to do a little thinking

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# We are using a recursive build, so we need to do a little thinking

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# to get the ordering right.

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# to get the ordering right.

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#

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#

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# Most importantly: sub-Makefiles should only ever modify files in

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# Most importantly: sub-Makefiles should only ever modify files in

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# their own directory. If in some directory we have a dependency on

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# their own directory. If in some directory we have a dependency on

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# a file in another dir (which doesn't happen often, but it's often

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# a file in another dir (which doesn't happen often, but it's often

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# unavoidable when linking the built-in.o targets which finally

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# unavoidable when linking the built-in.o targets which finally

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# turn into vmlinux), we will call a sub make in that other dir, and

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# turn into vmlinux), we will call a sub make in that other dir, and

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# after that we are sure that everything which is in that other dir

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# after that we are sure that everything which is in that other dir

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# is now up to date.

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# is now up to date.

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#

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#

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# The only cases where we need to modify files which have global

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# The only cases where we need to modify files which have global

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# effects are thus separated out and done before the recursive

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# effects are thus separated out and done before the recursive

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# descending is started. They are now explicitly listed as the

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# descending is started. They are now explicitly listed as the

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# prepare rule.

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# prepare rule.

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# To put more focus on warnings, be less verbose as default

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# To put more focus on warnings, be less verbose as default

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# Use 'make V=1' to see the full commands

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# Use 'make V=1' to see the full commands

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ifeq ("$(origin V)", "command line")

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ifeq ("$(origin V)", "command line")

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KBUILD_VERBOSE = $(V)

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KBUILD_VERBOSE = $(V)

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endif

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endif

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ifndef KBUILD_VERBOSE

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ifndef KBUILD_VERBOSE

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KBUILD_VERBOSE = 0

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KBUILD_VERBOSE = 0

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endif

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endif

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# Call a source code checker (by default, "sparse") as part of the

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# Call a source code checker (by default, "sparse") as part of the

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# C compilation.

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# C compilation.

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#

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#

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# Use 'make C=1' to enable checking of only re-compiled files.

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# Use 'make C=1' to enable checking of only re-compiled files.

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# Use 'make C=2' to enable checking of *all* source files, regardless

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# Use 'make C=2' to enable checking of *all* source files, regardless

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# of whether they are re-compiled or not.

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# of whether they are re-compiled or not.

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#

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#

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# See the file "Documentation/sparse.txt" for more details, including

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# See the file "Documentation/sparse.txt" for more details, including

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# where to get the "sparse" utility.

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# where to get the "sparse" utility.

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ifeq ("$(origin C)", "command line")

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ifeq ("$(origin C)", "command line")

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KBUILD_CHECKSRC = $(C)

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KBUILD_CHECKSRC = $(C)

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endif

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endif

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ifndef KBUILD_CHECKSRC

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ifndef KBUILD_CHECKSRC

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KBUILD_CHECKSRC = 0

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KBUILD_CHECKSRC = 0

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endif

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endif

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# Use make M=dir to specify directory of external module to build

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# Use make M=dir to specify directory of external module to build

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# Old syntax make ... SUBDIRS=$PWD is still supported

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# Old syntax make ... SUBDIRS=$PWD is still supported

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# Setting the environment variable KBUILD_EXTMOD take precedence

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# Setting the environment variable KBUILD_EXTMOD take precedence

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ifdef SUBDIRS

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ifdef SUBDIRS

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KBUILD_EXTMOD ?= $(SUBDIRS)

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KBUILD_EXTMOD ?= $(SUBDIRS)

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endif

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endif

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ifeq ("$(origin M)", "command line")

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ifeq ("$(origin M)", "command line")

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KBUILD_EXTMOD := $(M)

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KBUILD_EXTMOD := $(M)

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endif

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endif

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# kbuild supports saving output files in a separate directory.

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# kbuild supports saving output files in a separate directory.

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# To locate output files in a separate directory two syntaxes are supported.

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# To locate output files in a separate directory two syntaxes are supported.

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# In both cases the working directory must be the root of the kernel src.

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# In both cases the working directory must be the root of the kernel src.

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# 1) O=

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# 1) O=

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# Use "make O=dir/to/store/output/files/"

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# Use "make O=dir/to/store/output/files/"

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#

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#

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# 2) Set KBUILD_OUTPUT

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# 2) Set KBUILD_OUTPUT

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# Set the environment variable KBUILD_OUTPUT to point to the directory

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# Set the environment variable KBUILD_OUTPUT to point to the directory

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# where the output files shall be placed.

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# where the output files shall be placed.

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# export KBUILD_OUTPUT=dir/to/store/output/files/

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# export KBUILD_OUTPUT=dir/to/store/output/files/

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# make

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# make

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#

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#

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# The O= assignment takes precedence over the KBUILD_OUTPUT environment

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# The O= assignment takes precedence over the KBUILD_OUTPUT environment

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# variable.

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# variable.

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# KBUILD_SRC is set on invocation of make in OBJ directory

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# KBUILD_SRC is set on invocation of make in OBJ directory

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# KBUILD_SRC is not intended to be used by the regular user (for now)

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# KBUILD_SRC is not intended to be used by the regular user (for now)

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ifeq ($(KBUILD_SRC),)

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ifeq ($(KBUILD_SRC),)

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# OK, Make called in directory where kernel src resides

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# OK, Make called in directory where kernel src resides

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# Do we want to locate output files in a separate directory?

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# Do we want to locate output files in a separate directory?

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ifeq ("$(origin O)", "command line")

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ifeq ("$(origin O)", "command line")

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KBUILD_OUTPUT := $(O)

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KBUILD_OUTPUT := $(O)

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endif

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endif

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# That's our default target when none is given on the command line

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# That's our default target when none is given on the command line

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PHONY := _all

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PHONY := _all

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_all:

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_all:

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# Cancel implicit rules on top Makefile

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# Cancel implicit rules on top Makefile

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$(CURDIR)/Makefile Makefile: ;

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$(CURDIR)/Makefile Makefile: ;

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ifneq ($(KBUILD_OUTPUT),)

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ifneq ($(KBUILD_OUTPUT),)

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# Invoke a second make in the output directory, passing relevant variables

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# Invoke a second make in the output directory, passing relevant variables

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# check that the output directory actually exists

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# check that the output directory actually exists

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saved-output := $(KBUILD_OUTPUT)

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saved-output := $(KBUILD_OUTPUT)

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KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)

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KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)

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$(if $(KBUILD_OUTPUT),, \

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$(if $(KBUILD_OUTPUT),, \

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$(error output directory "$(saved-output)" does not exist))

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$(error output directory "$(saved-output)" does not exist))

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PHONY += $(MAKECMDGOALS) sub-make

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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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$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make

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$(Q)@:

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$(Q)@:

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sub-make: FORCE

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sub-make: FORCE

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$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \

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$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \

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KBUILD_SRC=$(CURDIR) \

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KBUILD_SRC=$(CURDIR) \

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KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \

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KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \

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$(filter-out _all sub-make,$(MAKECMDGOALS))

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$(filter-out _all sub-make,$(MAKECMDGOALS))

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# Leave processing to above invocation of make

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# Leave processing to above invocation of make

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skip-makefile := 1

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skip-makefile := 1

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endif # ifneq ($(KBUILD_OUTPUT),)

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endif # ifneq ($(KBUILD_OUTPUT),)

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endif # ifeq ($(KBUILD_SRC),)

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endif # ifeq ($(KBUILD_SRC),)

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# We process the rest of the Makefile if this is the final invocation of make

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# We process the rest of the Makefile if this is the final invocation of make

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ifeq ($(skip-makefile),)

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ifeq ($(skip-makefile),)

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# If building an external module we do not care about the all: rule

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# If building an external module we do not care about the all: rule

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# but instead _all depend on modules

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# but instead _all depend on modules

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PHONY += all

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PHONY += all

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ifeq ($(KBUILD_EXTMOD),)

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ifeq ($(KBUILD_EXTMOD),)

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_all: all

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_all: all

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else

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else

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_all: modules

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_all: modules

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endif

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endif

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srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))

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srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))

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objtree := $(CURDIR)

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objtree := $(CURDIR)

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src := $(srctree)

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src := $(srctree)

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obj := $(objtree)

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obj := $(objtree)

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VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))

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VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))

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export srctree objtree VPATH

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export srctree objtree VPATH

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# SUBARCH tells the usermode build what the underlying arch is. That is set

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# SUBARCH tells the usermode build what the underlying arch is. That is set

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# first, and if a usermode build is happening, the "ARCH=um" on the command

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# first, and if a usermode build is happening, the "ARCH=um" on the command

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# line overrides the setting of ARCH below. If a native build is happening,

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# line overrides the setting of ARCH below. If a native build is happening,

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# then ARCH is assigned, getting whatever value it gets normally, and

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# then ARCH is assigned, getting whatever value it gets normally, and

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# SUBARCH is subsequently ignored.

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# SUBARCH is subsequently ignored.

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SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \

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SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \

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-e s/arm.*/arm/ -e s/sa110/arm/ \

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-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/s390x/s390/ -e s/parisc64/parisc/ \

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-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \

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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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-e s/sh[234].*/sh/ )

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# Cross compiling and selecting different set of gcc/bin-utils

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# Cross compiling and selecting different set of gcc/bin-utils

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# ---------------------------------------------------------------------------

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# ---------------------------------------------------------------------------

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#

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#

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# When performing cross compilation for other architectures ARCH shall be set

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# When performing cross compilation for other architectures ARCH shall be set

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# to the target architecture. (See arch/* for the possibilities).

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# to the target architecture. (See arch/* for the possibilities).

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# ARCH can be set during invocation of make:

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# ARCH can be set during invocation of make:

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# make ARCH=ia64

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# make ARCH=ia64

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# Another way is to have ARCH set in the environment.

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# Another way is to have ARCH set in the environment.

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# The default ARCH is the host where make is executed.

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# The default ARCH is the host where make is executed.

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# CROSS_COMPILE specify the prefix used for all executables used

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# CROSS_COMPILE specify the prefix used for all executables used

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# during compilation. Only gcc and related bin-utils executables

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# during compilation. Only gcc and related bin-utils executables

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# are prefixed with $(CROSS_COMPILE).

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# are prefixed with $(CROSS_COMPILE).

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# CROSS_COMPILE can be set on the command line

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# CROSS_COMPILE can be set on the command line

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# make CROSS_COMPILE=ia64-linux-

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# make CROSS_COMPILE=ia64-linux-

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# Alternatively CROSS_COMPILE can be set in the environment.

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# Alternatively CROSS_COMPILE can be set in the environment.

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# Default value for CROSS_COMPILE is not to prefix executables

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# Default value for CROSS_COMPILE is not to prefix executables

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# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile

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# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile

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export KBUILD_BUILDHOST := $(SUBARCH)

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export KBUILD_BUILDHOST := $(SUBARCH)

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ARCH ?= $(SUBARCH)

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ARCH ?= $(SUBARCH)

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CROSS_COMPILE ?=

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CROSS_COMPILE ?=

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# Architecture as present in compile.h

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# Architecture as present in compile.h

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UTS_MACHINE := $(ARCH)

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UTS_MACHINE := $(ARCH)

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SRCARCH := $(ARCH)

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SRCARCH := $(ARCH)

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# Additional ARCH settings for x86

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# Additional ARCH settings for x86

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ifeq ($(ARCH),i386)

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ifeq ($(ARCH),i386)

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SRCARCH := x86

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SRCARCH := x86

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endif

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endif

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ifeq ($(ARCH),x86_64)

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ifeq ($(ARCH),x86_64)

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SRCARCH := x86

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SRCARCH := x86

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endif

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endif

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# Additional ARCH settings for sparc

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# Additional ARCH settings for sparc

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ifeq ($(ARCH),sparc64)

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ifeq ($(ARCH),sparc64)

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SRCARCH := sparc

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SRCARCH := sparc

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endif

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endif

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# Additional ARCH settings for sh

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# Additional ARCH settings for sh

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ifeq ($(ARCH),sh64)

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ifeq ($(ARCH),sh64)

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SRCARCH := sh

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SRCARCH := sh

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endif

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endif

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# Where to locate arch specific headers

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# Where to locate arch specific headers

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hdr-arch := $(SRCARCH)

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hdr-arch := $(SRCARCH)

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ifeq ($(ARCH),m68knommu)

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ifeq ($(ARCH),m68knommu)

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hdr-arch := m68k

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hdr-arch := m68k

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endif

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endif

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KCONFIG_CONFIG ?= .config

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KCONFIG_CONFIG ?= .config

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# SHELL used by kbuild

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# SHELL used by kbuild

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CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \

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CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \

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else if [ -x /bin/bash ]; then echo /bin/bash; \

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else if [ -x /bin/bash ]; then echo /bin/bash; \

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else echo sh; fi ; fi)

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else echo sh; fi ; fi)

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HOSTCC = gcc

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HOSTCC = gcc

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HOSTCXX = g++

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HOSTCXX = g++

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HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer

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HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer

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HOSTCXXFLAGS = -O2

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HOSTCXXFLAGS = -O2

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# Decide whether to build built-in, modular, or both.

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# Decide whether to build built-in, modular, or both.

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# Normally, just do built-in.

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# Normally, just do built-in.

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KBUILD_MODULES :=

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KBUILD_MODULES :=

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KBUILD_BUILTIN := 1

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KBUILD_BUILTIN := 1

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# If we have only "make modules", don't compile built-in objects.

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# If we have only "make modules", don't compile built-in objects.

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# When we're building modules with modversions, we need to consider

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# When we're building modules with modversions, we need to consider

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# the built-in objects during the descend as well, in order to

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# 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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# make sure the checksums are up to date before we record them.

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ifeq ($(MAKECMDGOALS),modules)

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ifeq ($(MAKECMDGOALS),modules)

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KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)

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KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)

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endif

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endif

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# If we have "make <whatever> modules", compile modules

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# If we have "make <whatever> modules", compile modules

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# in addition to whatever we do anyway.

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# in addition to whatever we do anyway.

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# Just "make" or "make all" shall build modules as well

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# Just "make" or "make all" shall build modules as well

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ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)

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ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)

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KBUILD_MODULES := 1

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KBUILD_MODULES := 1

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endif

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endif

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ifeq ($(MAKECMDGOALS),)

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ifeq ($(MAKECMDGOALS),)

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KBUILD_MODULES := 1

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KBUILD_MODULES := 1

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endif

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endif

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export KBUILD_MODULES KBUILD_BUILTIN

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export KBUILD_MODULES KBUILD_BUILTIN

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export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD

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export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD

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# Beautify output

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# Beautify output

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# ---------------------------------------------------------------------------

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# ---------------------------------------------------------------------------

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#

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#

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# Normally, we echo the whole command before executing it. By making

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# Normally, we echo the whole command before executing it. By making

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# that echo $($(quiet)$(cmd)), we now have the possibility to set

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# that echo $($(quiet)$(cmd)), we now have the possibility to set

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# $(quiet) to choose other forms of output instead, e.g.

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# $(quiet) to choose other forms of output instead, e.g.

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#

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#

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# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@

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# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@

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# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<

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# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<

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#

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#

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# If $(quiet) is empty, the whole command will be printed.

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# If $(quiet) is empty, the whole command will be printed.

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# If it is set to "quiet_", only the short version will be printed.

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# 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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# 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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# the variable $(silent_cmd_cc_o_c) doesn't exist.

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#

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#

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# A simple variant is to prefix commands with $(Q) - that's useful

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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.

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# for commands that shall be hidden in non-verbose mode.

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#

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#

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# $(Q)ln $@ :<

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# $(Q)ln $@ :<

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#

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#

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# If KBUILD_VERBOSE equals 0 then the above command will be hidden.

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# If KBUILD_VERBOSE equals 0 then the above command will be hidden.

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# If KBUILD_VERBOSE equals 1 then the above command is displayed.

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# If KBUILD_VERBOSE equals 1 then the above command is displayed.

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ifeq ($(KBUILD_VERBOSE),1)

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ifeq ($(KBUILD_VERBOSE),1)

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quiet =

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quiet =

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Q =

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Q =

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else

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else

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quiet=quiet_

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quiet=quiet_

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Q = @

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Q = @

286

endif

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endif

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# If the user is running make -s (silent mode), suppress echoing of

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# If the user is running make -s (silent mode), suppress echoing of

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# commands

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# commands

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ifneq ($(findstring s,$(MAKEFLAGS)),)

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ifneq ($(findstring s,$(MAKEFLAGS)),)

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quiet=silent_

292

quiet=silent_

293

endif

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endif

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export quiet Q KBUILD_VERBOSE

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export quiet Q KBUILD_VERBOSE

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# Look for make include files relative to root of kernel src

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# Look for make include files relative to root of kernel src

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MAKEFLAGS += --include-dir=$(srctree)

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MAKEFLAGS += --include-dir=$(srctree)

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# We need some generic definitions (do not try to remake the file).

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# We need some generic definitions (do not try to remake the file).

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$(srctree)/scripts/Kbuild.include: ;

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$(srctree)/scripts/Kbuild.include: ;

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include $(srctree)/scripts/Kbuild.include

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include $(srctree)/scripts/Kbuild.include

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# Make variables (CC, etc...)

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# Make variables (CC, etc...)

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AS = $(CROSS_COMPILE)as

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AS = $(CROSS_COMPILE)as

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LD = $(CROSS_COMPILE)ld

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LD = $(CROSS_COMPILE)ld

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CC = $(CROSS_COMPILE)gcc

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CC = $(CROSS_COMPILE)gcc

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CPP = $(CC) -E

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CPP = $(CC) -E

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AR = $(CROSS_COMPILE)ar

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AR = $(CROSS_COMPILE)ar

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NM = $(CROSS_COMPILE)nm

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NM = $(CROSS_COMPILE)nm

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STRIP = $(CROSS_COMPILE)strip

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STRIP = $(CROSS_COMPILE)strip

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OBJCOPY = $(CROSS_COMPILE)objcopy

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OBJCOPY = $(CROSS_COMPILE)objcopy

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OBJDUMP = $(CROSS_COMPILE)objdump

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OBJDUMP = $(CROSS_COMPILE)objdump

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AWK = awk

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AWK = awk

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GENKSYMS = scripts/genksyms/genksyms

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GENKSYMS = scripts/genksyms/genksyms

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DEPMOD = /sbin/depmod

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DEPMOD = /sbin/depmod

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KALLSYMS = scripts/kallsyms

319

KALLSYMS = scripts/kallsyms

320

PERL = perl

320

PERL = perl

321

CHECK = sparse

321

CHECK = sparse

322

323

CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \

323

CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \

324

-Wbitwise -Wno-return-void $(CF)

324

-Wbitwise -Wno-return-void $(CF)

325

MODFLAGS = -DMODULE

325

MODFLAGS = -DMODULE

326

CFLAGS_MODULE = $(MODFLAGS)

326

CFLAGS_MODULE = $(MODFLAGS)

327

AFLAGS_MODULE = $(MODFLAGS)

327

AFLAGS_MODULE = $(MODFLAGS)

328

LDFLAGS_MODULE =

328

LDFLAGS_MODULE =

329

CFLAGS_KERNEL =

329

CFLAGS_KERNEL =

330

AFLAGS_KERNEL =

330

AFLAGS_KERNEL =

331

CFLAGS_GCOV = -fprofile-arcs -ftest-coverage

331

CFLAGS_GCOV = -fprofile-arcs -ftest-coverage

332

333

334

# Use LINUXINCLUDE when you must reference the include/ directory.

334

# Use LINUXINCLUDE when you must reference the include/ directory.

335

# Needed to be compatible with the O= option

335

# Needed to be compatible with the O= option

336

LINUXINCLUDE := -Iinclude \

336

LINUXINCLUDE := -Iinclude \

337

$(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \

337

$(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \

338

-I$(srctree)/arch/$(hdr-arch)/include \

338

-I$(srctree)/arch/$(hdr-arch)/include \

339

-include include/linux/autoconf.h

339

-include include/linux/autoconf.h

340

341

KBUILD_CPPFLAGS := -D__KERNEL__

341

KBUILD_CPPFLAGS := -D__KERNEL__

342

343

KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \

343

KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \

344

-fno-strict-aliasing -fno-common \

344

-fno-strict-aliasing -fno-common \

345

-Werror-implicit-function-declaration \

345

-Werror-implicit-function-declaration \

346

-Wno-format-security

346

-Wno-format-security

347

KBUILD_AFLAGS := -D__ASSEMBLY__

347

KBUILD_AFLAGS := -D__ASSEMBLY__

348

349

# Read KERNELRELEASE from include/config/kernel.release (if it exists)

349

# Read KERNELRELEASE from include/config/kernel.release (if it exists)

350

KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)

350

KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)

351

KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)

351

KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)

352

353

export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION

353

export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION

354

export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC

354

export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC

355

export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE

355

export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE

356

export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS

356

export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS

357

358

export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS

358

export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS

359

export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV

359

export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV

360

export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE

360

export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE

361

362

# When compiling out-of-tree modules, put MODVERDIR in the module

362

# When compiling out-of-tree modules, put MODVERDIR in the module

363

# tree rather than in the kernel tree. The kernel tree might

363

# tree rather than in the kernel tree. The kernel tree might

364

# even be read-only.

364

# even be read-only.

365

export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions

365

export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions

366

367

# Files to ignore in find ... statements

367

# Files to ignore in find ... statements

368

369

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

369

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

370

export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git

370

export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git

371

372

# ===========================================================================

372

# ===========================================================================

373

# Rules shared between *config targets and build targets

373

# Rules shared between *config targets and build targets

374

375

# Basic helpers built in scripts/

375

# Basic helpers built in scripts/

376

PHONY += scripts_basic

376

PHONY += scripts_basic

377

scripts_basic:

377

scripts_basic:

378

$(Q)$(MAKE) $(build)=scripts/basic

378

$(Q)$(MAKE) $(build)=scripts/basic

379

380

# To avoid any implicit rule to kick in, define an empty command.

380

# To avoid any implicit rule to kick in, define an empty command.

381

scripts/basic/%: scripts_basic ;

381

scripts/basic/%: scripts_basic ;

382

383

PHONY += outputmakefile

383

PHONY += outputmakefile

384

# outputmakefile generates a Makefile in the output directory, if using a

384

# outputmakefile generates a Makefile in the output directory, if using a

385

# separate output directory. This allows convenient use of make in the

385

# separate output directory. This allows convenient use of make in the

386

# output directory.

386

# output directory.

387

outputmakefile:

387

outputmakefile:

388

ifneq ($(KBUILD_SRC),)

388

ifneq ($(KBUILD_SRC),)

389

$(Q)ln -fsn $(srctree) source

389

$(Q)ln -fsn $(srctree) source

390

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \

390

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \

391

$(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)

391

$(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)

392

endif

392

endif

393

394

# To make sure we do not include .config for any of the *config targets

394

# To make sure we do not include .config for any of the *config targets

395

# catch them early, and hand them over to scripts/kconfig/Makefile

395

# catch them early, and hand them over to scripts/kconfig/Makefile

396

# It is allowed to specify more targets when calling make, including

396

# It is allowed to specify more targets when calling make, including

397

# mixing *config targets and build targets.

397

# mixing *config targets and build targets.

398

# For example 'make oldconfig all'.

398

# For example 'make oldconfig all'.

399

# Detect when mixed targets is specified, and make a second invocation

399

# Detect when mixed targets is specified, and make a second invocation

400

# of make so .config is not included in this case either (for *config).

400

# of make so .config is not included in this case either (for *config).

401

402

no-dot-config-targets := clean mrproper distclean \

402

no-dot-config-targets := clean mrproper distclean \

403

cscope TAGS tags help %docs check% \

403

cscope TAGS tags help %docs check% \

404

include/linux/version.h headers_% \

404

include/linux/version.h headers_% \

405

kernelrelease kernelversion

405

kernelrelease kernelversion

406

407

config-targets := 0

407

config-targets := 0

408

mixed-targets := 0

408

mixed-targets := 0

409

dot-config := 1

409

dot-config := 1

410

411

ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)

411

ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)

412

ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)

412

ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)

413

dot-config := 0

413

dot-config := 0

414

endif

414

endif

415

endif

415

endif

416

417

ifeq ($(KBUILD_EXTMOD),)

417

ifeq ($(KBUILD_EXTMOD),)

418

ifneq ($(filter config %config,$(MAKECMDGOALS)),)

418

ifneq ($(filter config %config,$(MAKECMDGOALS)),)

419

config-targets := 1

419

config-targets := 1

420

ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)

420

ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)

421

mixed-targets := 1

421

mixed-targets := 1

422

endif

422

endif

423

endif

423

endif

424

endif

424

endif

425

426

ifeq ($(mixed-targets),1)

426

ifeq ($(mixed-targets),1)

427

# ===========================================================================

427

# ===========================================================================

428

# We're called with mixed targets (*config and build targets).

428

# We're called with mixed targets (*config and build targets).

429

# Handle them one by one.

429

# Handle them one by one.

430

431

%:: FORCE

431

%:: FORCE

432

$(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@

432

$(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@

433

434

else

434

else

435

ifeq ($(config-targets),1)

435

ifeq ($(config-targets),1)

436

# ===========================================================================

436

# ===========================================================================

437

# *config targets only - make sure prerequisites are updated, and descend

437

# *config targets only - make sure prerequisites are updated, and descend

438

# in scripts/kconfig to make the *config target

438

# in scripts/kconfig to make the *config target

439

440

# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.

440

# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.

441

# KBUILD_DEFCONFIG may point out an alternative default configuration

441

# KBUILD_DEFCONFIG may point out an alternative default configuration

442

# used for 'make defconfig'

442

# used for 'make defconfig'

443

include $(srctree)/arch/$(SRCARCH)/Makefile

443

include $(srctree)/arch/$(SRCARCH)/Makefile

444

export KBUILD_DEFCONFIG KBUILD_KCONFIG

444

export KBUILD_DEFCONFIG KBUILD_KCONFIG

445

446

config: scripts_basic outputmakefile FORCE

446

config: scripts_basic outputmakefile FORCE

447

$(Q)mkdir -p include/linux include/config

447

$(Q)mkdir -p include/linux include/config

448

$(Q)$(MAKE) $(build)=scripts/kconfig $@

448

$(Q)$(MAKE) $(build)=scripts/kconfig $@

449

450

%config: scripts_basic outputmakefile FORCE

450

%config: scripts_basic outputmakefile FORCE

451

$(Q)mkdir -p include/linux include/config

451

$(Q)mkdir -p include/linux include/config

452

$(Q)$(MAKE) $(build)=scripts/kconfig $@

452

$(Q)$(MAKE) $(build)=scripts/kconfig $@

453

454

else

454

else

455

# ===========================================================================

455

# ===========================================================================

456

# Build targets only - this includes vmlinux, arch specific targets, clean

456

# Build targets only - this includes vmlinux, arch specific targets, clean

457

# targets and others. In general all targets except *config targets.

457

# targets and others. In general all targets except *config targets.

458

459

ifeq ($(KBUILD_EXTMOD),)

459

ifeq ($(KBUILD_EXTMOD),)

460

# Additional helpers built in scripts/

460

# Additional helpers built in scripts/

461

# Carefully list dependencies so we do not try to build scripts twice

461

# Carefully list dependencies so we do not try to build scripts twice

462

# in parallel

462

# in parallel

463

PHONY += scripts

463

PHONY += scripts

464

scripts: scripts_basic include/config/auto.conf

464

scripts: scripts_basic include/config/auto.conf

465

$(Q)$(MAKE) $(build)=$(@)

465

$(Q)$(MAKE) $(build)=$(@)

466

467

# Objects we will link into vmlinux / subdirs we need to visit

467

# Objects we will link into vmlinux / subdirs we need to visit

468

init-y := init/

468

init-y := init/

469

drivers-y := drivers/ sound/ firmware/

469

drivers-y := drivers/ sound/ firmware/

470

net-y := net/

470

net-y := net/

471

libs-y := lib/

471

libs-y := lib/

472

core-y := usr/

472

core-y := usr/

473

endif # KBUILD_EXTMOD

473

endif # KBUILD_EXTMOD

474

475

ifeq ($(dot-config),1)

475

ifeq ($(dot-config),1)

476

# Read in config

476

# Read in config

477

-include include/config/auto.conf

477

-include include/config/auto.conf

478

479

ifeq ($(KBUILD_EXTMOD),)

479

ifeq ($(KBUILD_EXTMOD),)

480

# Read in dependencies to all Kconfig* files, make sure to run

480

# Read in dependencies to all Kconfig* files, make sure to run

481

# oldconfig if changes are detected.

481

# oldconfig if changes are detected.

482

-include include/config/auto.conf.cmd

482

-include include/config/auto.conf.cmd

483

484

# To avoid any implicit rule to kick in, define an empty command

484

# To avoid any implicit rule to kick in, define an empty command

485

$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;

485

$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;

486

487

# If .config is newer than include/config/auto.conf, someone tinkered

487

# If .config is newer than include/config/auto.conf, someone tinkered

488

# with it and forgot to run make oldconfig.

488

# with it and forgot to run make oldconfig.

489

# if auto.conf.cmd is missing then we are probably in a cleaned tree so

489

# if auto.conf.cmd is missing then we are probably in a cleaned tree so

490

# we execute the config step to be sure to catch updated Kconfig files

490

# we execute the config step to be sure to catch updated Kconfig files

491

include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd

491

include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd

492

$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig

492

$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig

493

else

493

else

494

# external modules needs include/linux/autoconf.h and include/config/auto.conf

494

# external modules needs include/linux/autoconf.h and include/config/auto.conf

495

# but do not care if they are up-to-date. Use auto.conf to trigger the test

495

# but do not care if they are up-to-date. Use auto.conf to trigger the test

496

PHONY += include/config/auto.conf

496

PHONY += include/config/auto.conf

497

498

include/config/auto.conf:

498

include/config/auto.conf:

499

$(Q)test -e include/linux/autoconf.h -a -e $@ || ( \

499

$(Q)test -e include/linux/autoconf.h -a -e $@ || ( \

500

echo; \

500

echo; \

501

echo " ERROR: Kernel configuration is invalid."; \

501

echo " ERROR: Kernel configuration is invalid."; \

502

echo " include/linux/autoconf.h or $@ are missing."; \

502

echo " include/linux/autoconf.h or $@ are missing."; \

503

echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \

503

echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \

504

echo; \

504

echo; \

505

/bin/false)

505

/bin/false)

506

507

endif # KBUILD_EXTMOD

507

endif # KBUILD_EXTMOD

508

509

else

509

else

510

# Dummy target needed, because used as prerequisite

510

# Dummy target needed, because used as prerequisite

511

include/config/auto.conf: ;

511

include/config/auto.conf: ;

512

endif # $(dot-config)

512

endif # $(dot-config)

513

514

# The all: target is the default when no target is given on the

514

# The all: target is the default when no target is given on the

515

# command line.

515

# command line.

516

# This allow a user to issue only 'make' to build a kernel including modules

516

# This allow a user to issue only 'make' to build a kernel including modules

517

# Defaults vmlinux but it is usually overridden in the arch makefile

517

# Defaults vmlinux but it is usually overridden in the arch makefile

518

all: vmlinux

518

all: vmlinux

519

520

ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE

520

ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE

521

KBUILD_CFLAGS += -Os

521

KBUILD_CFLAGS += -Os

522

else

522

else

523

KBUILD_CFLAGS += -O2

523

KBUILD_CFLAGS += -O2

524

endif

524

endif

525

526

include $(srctree)/arch/$(SRCARCH)/Makefile

526

include $(srctree)/arch/$(SRCARCH)/Makefile

527

528

ifneq ($(CONFIG_FRAME_WARN),0)

528

ifneq ($(CONFIG_FRAME_WARN),0)

529

KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})

529

KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})

530

endif

530

endif

531

532

# Force gcc to behave correct even for buggy distributions

532

# Force gcc to behave correct even for buggy distributions

533

ifndef CONFIG_CC_STACKPROTECTOR

533

ifndef CONFIG_CC_STACKPROTECTOR

534

KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector)

534

KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector)

535

endif

535

endif

536

537

ifdef CONFIG_FRAME_POINTER

537

ifdef CONFIG_FRAME_POINTER

538

KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls

538

KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls

539

else

539

else

540

KBUILD_CFLAGS += -fomit-frame-pointer

540

KBUILD_CFLAGS += -fomit-frame-pointer

541

endif

541

endif

542

543

ifdef CONFIG_DEBUG_INFO

543

ifdef CONFIG_DEBUG_INFO

544

KBUILD_CFLAGS += -g

544

KBUILD_CFLAGS += -g

545

KBUILD_AFLAGS += -gdwarf-2

545

KBUILD_AFLAGS += -gdwarf-2

546

endif

546

endif

547

548

ifdef CONFIG_FUNCTION_TRACER

548

ifdef CONFIG_FUNCTION_TRACER

549

KBUILD_CFLAGS += -pg

549

KBUILD_CFLAGS += -pg

550

endif

550

endif

551

552

# We trigger additional mismatches with less inlining

552

# We trigger additional mismatches with less inlining

553

ifdef CONFIG_DEBUG_SECTION_MISMATCH

553

ifdef CONFIG_DEBUG_SECTION_MISMATCH

554

KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)

554

KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)

555

endif

555

endif

556

557

# arch Makefile may override CC so keep this after arch Makefile is included

557

# arch Makefile may override CC so keep this after arch Makefile is included

558

NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)

558

NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)

559

CHECKFLAGS += $(NOSTDINC_FLAGS)

559

CHECKFLAGS += $(NOSTDINC_FLAGS)

560

561

# warn about C99 declaration after statement

561

# warn about C99 declaration after statement

562

KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)

562

KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)

563

564

# disable pointer signed / unsigned warnings in gcc 4.0

564

# disable pointer signed / unsigned warnings in gcc 4.0

565

KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,)

565

KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,)

566

567

# disable invalid "can't wrap" optimizations for signed / pointers

567

# disable invalid "can't wrap" optimizations for signed / pointers

568

KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow)

568

KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow)

569

570

# revert to pre-gcc-4.4 behaviour of .eh_frame

570

# revert to pre-gcc-4.4 behaviour of .eh_frame

571

KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)

571

KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)

572

573

# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments

573

# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments

574

# But warn user when we do so

574

# But warn user when we do so

575

warn-assign = \

575

warn-assign = \

576

$(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)")

576

$(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)")

577

578

ifneq ($(KCPPFLAGS),)

578

ifneq ($(KCPPFLAGS),)

579

$(call warn-assign,CPPFLAGS)

579

$(call warn-assign,CPPFLAGS)

580

KBUILD_CPPFLAGS += $(KCPPFLAGS)

580

KBUILD_CPPFLAGS += $(KCPPFLAGS)

581

endif

581

endif

582

ifneq ($(KAFLAGS),)

582

ifneq ($(KAFLAGS),)

583

$(call warn-assign,AFLAGS)

583

$(call warn-assign,AFLAGS)

584

KBUILD_AFLAGS += $(KAFLAGS)

584

KBUILD_AFLAGS += $(KAFLAGS)

585

endif

585

endif

586

ifneq ($(KCFLAGS),)

586

ifneq ($(KCFLAGS),)

587

$(call warn-assign,CFLAGS)

587

$(call warn-assign,CFLAGS)

588

KBUILD_CFLAGS += $(KCFLAGS)

588

KBUILD_CFLAGS += $(KCFLAGS)

589

endif

589

endif

590

591

# Use --build-id when available.

591

# Use --build-id when available.

592

LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\

592

LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\

593

$(call ld-option, -Wl$(comma)--build-id,))

593

$(call ld-option, -Wl$(comma)--build-id,))

594

LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)

594

LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)

595

LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)

595

LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)

596

597

ifeq ($(CONFIG_STRIP_ASM_SYMS),y)

597

ifeq ($(CONFIG_STRIP_ASM_SYMS),y)

598

LDFLAGS_vmlinux += -X

598

LDFLAGS_vmlinux += -X

599

endif

599

endif

600

601

# Default kernel image to build when no specific target is given.

601

# Default kernel image to build when no specific target is given.

602

# KBUILD_IMAGE may be overruled on the command line or

602

# KBUILD_IMAGE may be overruled on the command line or

603

# set in the environment

603

# set in the environment

604

# Also any assignments in arch/$(ARCH)/Makefile take precedence over

604

# Also any assignments in arch/$(ARCH)/Makefile take precedence over

605

# this default value

605

# this default value

606

export KBUILD_IMAGE ?= vmlinux

606

export KBUILD_IMAGE ?= vmlinux

607

608

#

608

#

609

# INSTALL_PATH specifies where to place the updated kernel and system map

609

# INSTALL_PATH specifies where to place the updated kernel and system map

610

# images. Default is /boot, but you can set it to other values

610

# images. Default is /boot, but you can set it to other values

611

export INSTALL_PATH ?= /boot

611

export INSTALL_PATH ?= /boot

612

613

#

613

#

614

# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory

614

# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory

615

# relocations required by build roots. This is not defined in the

615

# relocations required by build roots. This is not defined in the

616

# makefile but the argument can be passed to make if needed.

616

# makefile but the argument can be passed to make if needed.

617

#

617

#

618

619

MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)

619

MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)

620

export MODLIB

620

export MODLIB

621

622

#

622

#

623

# INSTALL_MOD_STRIP, if defined, will cause modules to be

623

# INSTALL_MOD_STRIP, if defined, will cause modules to be

624

# stripped after they are installed. If INSTALL_MOD_STRIP is '1', then

624

# stripped after they are installed. If INSTALL_MOD_STRIP is '1', then

625

# the default option --strip-debug will be used. Otherwise,

625

# the default option --strip-debug will be used. Otherwise,

626

# INSTALL_MOD_STRIP will used as the options to the strip command.

626

# INSTALL_MOD_STRIP will used as the options to the strip command.

627

628

ifdef INSTALL_MOD_STRIP

628

ifdef INSTALL_MOD_STRIP

629

ifeq ($(INSTALL_MOD_STRIP),1)

629

ifeq ($(INSTALL_MOD_STRIP),1)

630

mod_strip_cmd = $(STRIP) --strip-debug

630

mod_strip_cmd = $(STRIP) --strip-debug

631

else

631

else

632

mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)

632

mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)

633

endif # INSTALL_MOD_STRIP=1

633

endif # INSTALL_MOD_STRIP=1

634

else

634

else

635

mod_strip_cmd = true

635

mod_strip_cmd = true

636

endif # INSTALL_MOD_STRIP

636

endif # INSTALL_MOD_STRIP

637

export mod_strip_cmd

637

export mod_strip_cmd

638

639

640

ifeq ($(KBUILD_EXTMOD),)

640

ifeq ($(KBUILD_EXTMOD),)

641

core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/

641

core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/

642

643

vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \

643

vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \

644

$(core-y) $(core-m) $(drivers-y) $(drivers-m) \

644

$(core-y) $(core-m) $(drivers-y) $(drivers-m) \

645

$(net-y) $(net-m) $(libs-y) $(libs-m)))

645

$(net-y) $(net-m) $(libs-y) $(libs-m)))

646

647

vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \

647

vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \

648

$(init-n) $(init-) \

648

$(init-n) $(init-) \

649

$(core-n) $(core-) $(drivers-n) $(drivers-) \

649

$(core-n) $(core-) $(drivers-n) $(drivers-) \

650

$(net-n) $(net-) $(libs-n) $(libs-))))

650

$(net-n) $(net-) $(libs-n) $(libs-))))

651

652

init-y := $(patsubst %/, %/built-in.o, $(init-y))

652

init-y := $(patsubst %/, %/built-in.o, $(init-y))

653

core-y := $(patsubst %/, %/built-in.o, $(core-y))

653

core-y := $(patsubst %/, %/built-in.o, $(core-y))

654

drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y))

654

drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y))

655

net-y := $(patsubst %/, %/built-in.o, $(net-y))

655

net-y := $(patsubst %/, %/built-in.o, $(net-y))

656

libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))

656

libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))

657

libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))

657

libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))

658

libs-y := $(libs-y1) $(libs-y2)

658

libs-y := $(libs-y1) $(libs-y2)

659

660

# Build vmlinux

660

# Build vmlinux

661

# ---------------------------------------------------------------------------

661

# ---------------------------------------------------------------------------

662

# vmlinux is built from the objects selected by $(vmlinux-init) and

662

# vmlinux is built from the objects selected by $(vmlinux-init) and

663

# $(vmlinux-main). Most are built-in.o files from top-level directories

663

# $(vmlinux-main). Most are built-in.o files from top-level directories

664

# in the kernel tree, others are specified in arch/$(ARCH)/Makefile.

664

# in the kernel tree, others are specified in arch/$(ARCH)/Makefile.

665

# Ordering when linking is important, and $(vmlinux-init) must be first.

665

# Ordering when linking is important, and $(vmlinux-init) must be first.

666

#

666

#

667

# vmlinux

667

# vmlinux

668

# ^

668

# ^

669

# |

669

# |

670

# +-< $(vmlinux-init)

670

# +-< $(vmlinux-init)

671

# | +--< init/version.o + more

671

# | +--< init/version.o + more

672

# |

672

# |

673

# +--< $(vmlinux-main)

673

# +--< $(vmlinux-main)

674

# | +--< driver/built-in.o mm/built-in.o + more

674

# | +--< driver/built-in.o mm/built-in.o + more

675

# |

675

# |

676

# +-< kallsyms.o (see description in CONFIG_KALLSYMS section)

676

# +-< kallsyms.o (see description in CONFIG_KALLSYMS section)

677

#

677

#

678

# vmlinux version (uname -v) cannot be updated during normal

678

# vmlinux version (uname -v) cannot be updated during normal

679

# descending-into-subdirs phase since we do not yet know if we need to

679

# descending-into-subdirs phase since we do not yet know if we need to

680

# update vmlinux.

680

# update vmlinux.

681

# Therefore this step is delayed until just before final link of vmlinux -

681

# Therefore this step is delayed until just before final link of vmlinux -

682

# except in the kallsyms case where it is done just before adding the

682

# except in the kallsyms case where it is done just before adding the

683

# symbols to the kernel.

683

# symbols to the kernel.

684

#

684

#

685

# System.map is generated to document addresses of all kernel symbols

685

# System.map is generated to document addresses of all kernel symbols

686

687

vmlinux-init := $(head-y) $(init-y)

687

vmlinux-init := $(head-y) $(init-y)

688

vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y)

688

vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y)

689

vmlinux-all := $(vmlinux-init) $(vmlinux-main)

689

vmlinux-all := $(vmlinux-init) $(vmlinux-main)

690

vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds

690

vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds

691

export KBUILD_VMLINUX_OBJS := $(vmlinux-all)

691

export KBUILD_VMLINUX_OBJS := $(vmlinux-all)

692

693

# Rule to link vmlinux - also used during CONFIG_KALLSYMS

693

# Rule to link vmlinux - also used during CONFIG_KALLSYMS

694

# May be overridden by arch/$(ARCH)/Makefile

694

# May be overridden by arch/$(ARCH)/Makefile

695

quiet_cmd_vmlinux__ ?= LD $@

695

quiet_cmd_vmlinux__ ?= LD $@

696

cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \

696

cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \

697

-T $(vmlinux-lds) $(vmlinux-init) \

697

-T $(vmlinux-lds) $(vmlinux-init) \

698

--start-group $(vmlinux-main) --end-group \

698

--start-group $(vmlinux-main) --end-group \

699

$(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^)

699

$(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^)

700

701

# Generate new vmlinux version

701

# Generate new vmlinux version

702

quiet_cmd_vmlinux_version = GEN .version

702

quiet_cmd_vmlinux_version = GEN .version

703

cmd_vmlinux_version = set -e; \

703

cmd_vmlinux_version = set -e; \

704

if [ ! -r .version ]; then \

704

if [ ! -r .version ]; then \

705

rm -f .version; \

705

rm -f .version; \

706

echo 1 >.version; \

706

echo 1 >.version; \

707

else \

707

else \

708

mv .version .old_version; \

708

mv .version .old_version; \

709

expr 0$$(cat .old_version) + 1 >.version; \

709

expr 0$$(cat .old_version) + 1 >.version; \

710

fi; \

710

fi; \

711

$(MAKE) $(build)=init

711

$(MAKE) $(build)=init

712

713

# Generate System.map

713

# Generate System.map

714

quiet_cmd_sysmap = SYSMAP

714

quiet_cmd_sysmap = SYSMAP

715

cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap

715

cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap

716

717

# Link of vmlinux

717

# Link of vmlinux

718

# If CONFIG_KALLSYMS is set .version is already updated

718

# If CONFIG_KALLSYMS is set .version is already updated

719

# Generate System.map and verify that the content is consistent

719

# Generate System.map and verify that the content is consistent

720

# Use + in front of the vmlinux_version rule to silent warning with make -j2

720

# Use + in front of the vmlinux_version rule to silent warning with make -j2

721

# First command is ':' to allow us to use + in front of the rule

721

# First command is ':' to allow us to use + in front of the rule

722

define rule_vmlinux__

722

define rule_vmlinux__

723

:

723

:

724

$(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version))

724

$(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version))

725

726

$(call cmd,vmlinux__)

726

$(call cmd,vmlinux__)

727

$(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd

727

$(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd

728

729

$(Q)$(if $($(quiet)cmd_sysmap), \

729

$(Q)$(if $($(quiet)cmd_sysmap), \

730

echo ' $($(quiet)cmd_sysmap) System.map' &&) \

730

echo ' $($(quiet)cmd_sysmap) System.map' &&) \

731

$(cmd_sysmap) $@ System.map; \

731

$(cmd_sysmap) $@ System.map; \

732

if [ $$? -ne 0 ]; then \

732

if [ $$? -ne 0 ]; then \

733

rm -f $@; \

733

rm -f $@; \

734

/bin/false; \

734

/bin/false; \

735

fi;

735

fi;

736

$(verify_kallsyms)

736

$(verify_kallsyms)

737

endef

737

endef

738

739

740

ifdef CONFIG_KALLSYMS

740

ifdef CONFIG_KALLSYMS

741

# Generate section listing all symbols and add it into vmlinux $(kallsyms.o)

741

# Generate section listing all symbols and add it into vmlinux $(kallsyms.o)

742

# It's a three stage process:

742

# It's a three stage process:

743

# o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is

743

# o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is

744

# empty

744

# empty

745

# Running kallsyms on that gives us .tmp_kallsyms1.o with

745

# Running kallsyms on that gives us .tmp_kallsyms1.o with

746

# the right size - vmlinux version (uname -v) is updated during this step

746

# the right size - vmlinux version (uname -v) is updated during this step

747

# o .tmp_vmlinux2 now has a __kallsyms section of the right size,

747

# o .tmp_vmlinux2 now has a __kallsyms section of the right size,

748

# but due to the added section, some addresses have shifted.

748

# but due to the added section, some addresses have shifted.

749

# From here, we generate a correct .tmp_kallsyms2.o

749

# From here, we generate a correct .tmp_kallsyms2.o

750

# o The correct .tmp_kallsyms2.o is linked into the final vmlinux.

750

# o The correct .tmp_kallsyms2.o is linked into the final vmlinux.

751

# o Verify that the System.map from vmlinux matches the map from

751

# o Verify that the System.map from vmlinux matches the map from

752

# .tmp_vmlinux2, just in case we did not generate kallsyms correctly.

752

# .tmp_vmlinux2, just in case we did not generate kallsyms correctly.

753

# o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using

753

# o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using

754

# .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a

754

# .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a

755

# temporary bypass to allow the kernel to be built while the

755

# temporary bypass to allow the kernel to be built while the

756

# maintainers work out what went wrong with kallsyms.

756

# maintainers work out what went wrong with kallsyms.

757

758

ifdef CONFIG_KALLSYMS_EXTRA_PASS

758

ifdef CONFIG_KALLSYMS_EXTRA_PASS

759

last_kallsyms := 3

759

last_kallsyms := 3

760

else

760

else

761

last_kallsyms := 2

761

last_kallsyms := 2

762

endif

762

endif

763

764

kallsyms.o := .tmp_kallsyms$(last_kallsyms).o

764

kallsyms.o := .tmp_kallsyms$(last_kallsyms).o

765

766

define verify_kallsyms

766

define verify_kallsyms

767

$(Q)$(if $($(quiet)cmd_sysmap), \

767

$(Q)$(if $($(quiet)cmd_sysmap), \

768

echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \

768

echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \

769

$(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map

769

$(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map

770

$(Q)cmp -s System.map .tmp_System.map || \

770

$(Q)cmp -s System.map .tmp_System.map || \

771

(echo Inconsistent kallsyms data; \

771

(echo Inconsistent kallsyms data; \

772

echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \

772

echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \

773

rm .tmp_kallsyms* ; /bin/false )

773

rm .tmp_kallsyms* ; /bin/false )

774

endef

774

endef

775

776

# Update vmlinux version before link

776

# Update vmlinux version before link

777

# Use + in front of this rule to silent warning about make -j1

777

# Use + in front of this rule to silent warning about make -j1

778

# First command is ':' to allow us to use + in front of this rule

778

# First command is ':' to allow us to use + in front of this rule

779

cmd_ksym_ld = $(cmd_vmlinux__)

779

cmd_ksym_ld = $(cmd_vmlinux__)

780

define rule_ksym_ld

780

define rule_ksym_ld

781

:

781

:

782

+$(call cmd,vmlinux_version)

782

+$(call cmd,vmlinux_version)

783

$(call cmd,vmlinux__)

783

$(call cmd,vmlinux__)

784

$(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd

784

$(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd

785

endef

785

endef

786

787

# Generate .S file with all kernel symbols

787

# Generate .S file with all kernel symbols

788

quiet_cmd_kallsyms = KSYM $@

788

quiet_cmd_kallsyms = KSYM $@

789

cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \

789

cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \

790

$(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@

790

$(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@

791

792

.tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE

792

.tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE

793

$(call if_changed_dep,as_o_S)

793

$(call if_changed_dep,as_o_S)

794

795

.tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS)

795

.tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS)

796

$(call cmd,kallsyms)

796

$(call cmd,kallsyms)

797

798

# .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version

798

# .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version

799

.tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE

799

.tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE

800

$(call if_changed_rule,ksym_ld)

800

$(call if_changed_rule,ksym_ld)

801

802

.tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE

802

.tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE

803

$(call if_changed,vmlinux__)

803

$(call if_changed,vmlinux__)

804

805

.tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE

805

.tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE

806

$(call if_changed,vmlinux__)

806

$(call if_changed,vmlinux__)

807

808

# Needs to visit scripts/ before $(KALLSYMS) can be used.

808

# Needs to visit scripts/ before $(KALLSYMS) can be used.

809

$(KALLSYMS): scripts ;

809

$(KALLSYMS): scripts ;

810

811

# Generate some data for debugging strange kallsyms problems

811

# Generate some data for debugging strange kallsyms problems

812

debug_kallsyms: .tmp_map$(last_kallsyms)

812

debug_kallsyms: .tmp_map$(last_kallsyms)

813

814

.tmp_map%: .tmp_vmlinux% FORCE

814

.tmp_map%: .tmp_vmlinux% FORCE

815

($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@

815

($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@

816

817

.tmp_map3: .tmp_map2

817

.tmp_map3: .tmp_map2

818

819

.tmp_map2: .tmp_map1

819

.tmp_map2: .tmp_map1

820

821

endif # ifdef CONFIG_KALLSYMS

821

endif # ifdef CONFIG_KALLSYMS

822

823

# Do modpost on a prelinked vmlinux. The finally linked vmlinux has

823

# Do modpost on a prelinked vmlinux. The finally linked vmlinux has

824

# relevant sections renamed as per the linker script.

824

# relevant sections renamed as per the linker script.

825

quiet_cmd_vmlinux-modpost = LD $@

825

quiet_cmd_vmlinux-modpost = LD $@

826

cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \

826

cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \

827

$(vmlinux-init) --start-group $(vmlinux-main) --end-group \

827

$(vmlinux-init) --start-group $(vmlinux-main) --end-group \

828

$(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^)

828

$(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^)

829

define rule_vmlinux-modpost

829

define rule_vmlinux-modpost

830

:

830

:

831

+$(call cmd,vmlinux-modpost)

831

+$(call cmd,vmlinux-modpost)

832

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@

832

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@

833

$(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd

833

$(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd

834

endef

834

endef

835

836

# vmlinux image - including updated kernel symbols

836

# vmlinux image - including updated kernel symbols

837

vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE

837

vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE

838

ifdef CONFIG_HEADERS_CHECK

838

ifdef CONFIG_HEADERS_CHECK

839

$(Q)$(MAKE) -f $(srctree)/Makefile headers_check

839

$(Q)$(MAKE) -f $(srctree)/Makefile headers_check

840

endif

840

endif

841

ifdef CONFIG_SAMPLES

841

ifdef CONFIG_SAMPLES

842

$(Q)$(MAKE) $(build)=samples

842

$(Q)$(MAKE) $(build)=samples

843

endif

843

endif

844

ifdef CONFIG_BUILD_DOCSRC

844

ifdef CONFIG_BUILD_DOCSRC

845

$(Q)$(MAKE) $(build)=Documentation

845

$(Q)$(MAKE) $(build)=Documentation

846

endif

846

endif

847

$(call vmlinux-modpost)

847

$(call vmlinux-modpost)

848

$(call if_changed_rule,vmlinux__)

848

$(call if_changed_rule,vmlinux__)

849

$(Q)rm -f .old_version

849

$(Q)rm -f .old_version

850

851

# build vmlinux.o first to catch section mismatch errors early

851

# build vmlinux.o first to catch section mismatch errors early

852

ifdef CONFIG_KALLSYMS

852

ifdef CONFIG_KALLSYMS

853

.tmp_vmlinux1: vmlinux.o

853

.tmp_vmlinux1: vmlinux.o

854

endif

854

endif

855

856

modpost-init := $(filter-out init/built-in.o, $(vmlinux-init))

856

modpost-init := $(filter-out init/built-in.o, $(vmlinux-init))

857

vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE

857

vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE

858

$(call if_changed_rule,vmlinux-modpost)

858

$(call if_changed_rule,vmlinux-modpost)

859

860

# The actual objects are generated when descending,

860

# The actual objects are generated when descending,

861

# make sure no implicit rule kicks in

861

# make sure no implicit rule kicks in

862

$(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ;

862

$(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ;

863

864

# Handle descending into subdirectories listed in $(vmlinux-dirs)

864

# Handle descending into subdirectories listed in $(vmlinux-dirs)

865

# Preset locale variables to speed up the build process. Limit locale

865

# Preset locale variables to speed up the build process. Limit locale

866

# tweaks to this spot to avoid wrong language settings when running

866

# tweaks to this spot to avoid wrong language settings when running

867

# make menuconfig etc.

867

# make menuconfig etc.

868

# Error messages still appears in the original language

868

# Error messages still appears in the original language

869

870

PHONY += $(vmlinux-dirs)

870

PHONY += $(vmlinux-dirs)

871

$(vmlinux-dirs): prepare scripts

871

$(vmlinux-dirs): prepare scripts

872

$(Q)$(MAKE) $(build)=$@

872

$(Q)$(MAKE) $(build)=$@

873

874

# Build the kernel release string

874

# Build the kernel release string

875

#

875

#

876

# The KERNELRELEASE value built here is stored in the file

876

# The KERNELRELEASE value built here is stored in the file

877

# include/config/kernel.release, and is used when executing several

877

# include/config/kernel.release, and is used when executing several

878

# make targets, such as "make install" or "make modules_install."

878

# make targets, such as "make install" or "make modules_install."

879

#

879

#

880

# The eventual kernel release string consists of the following fields,

880

# The eventual kernel release string consists of the following fields,

881

# shown in a hierarchical format to show how smaller parts are concatenated

881

# shown in a hierarchical format to show how smaller parts are concatenated

882

# to form the larger and final value, with values coming from places like

882

# to form the larger and final value, with values coming from places like

883

# the Makefile, kernel config options, make command line options and/or

883

# the Makefile, kernel config options, make command line options and/or

884

# SCM tag information.

884

# SCM tag information.

885

#

885

#

886

# $(KERNELVERSION)

886

# $(KERNELVERSION)

887

# $(VERSION) eg, 2

887

# $(VERSION) eg, 2

888

# $(PATCHLEVEL) eg, 6

888

# $(PATCHLEVEL) eg, 6

889

# $(SUBLEVEL) eg, 18

889

# $(SUBLEVEL) eg, 18

890

# $(EXTRAVERSION) eg, -rc6

890

# $(EXTRAVERSION) eg, -rc6

891

# $(localver-full)

891

# $(localver-full)

892

# $(localver)

892

# $(localver)

893

# localversion* (files without backups, containing '~')

893

# localversion* (files without backups, containing '~')

894

# $(CONFIG_LOCALVERSION) (from kernel config setting)

894

# $(CONFIG_LOCALVERSION) (from kernel config setting)

895

# $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set)

895

# $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set)

896

# ./scripts/setlocalversion (SCM tag, if one exists)

896

# ./scripts/setlocalversion (SCM tag, if one exists)

897

# $(LOCALVERSION) (from make command line if provided)

897

# $(LOCALVERSION) (from make command line if provided)

898

#

898

#

899

# Note how the final $(localver-auto) string is included *only* if the

899

# Note how the final $(localver-auto) string is included *only* if the

900

# kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the

900

# kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the

901

# moment, only git is supported but other SCMs can edit the script

901

# moment, only git is supported but other SCMs can edit the script

902

# scripts/setlocalversion and add the appropriate checks as needed.

902

# scripts/setlocalversion and add the appropriate checks as needed.

903

904

pattern = ".*/localversion[^~]*"

904

pattern = ".*/localversion[^~]*"

905

string = $(shell cat /dev/null \

905

string = $(shell cat /dev/null \

906

`find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`)

906

`find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`)

907

908

localver = $(subst $(space),, $(string) \

908

localver = $(subst $(space),, $(string) \

909

$(patsubst "%",%,$(CONFIG_LOCALVERSION)))

909

$(patsubst "%",%,$(CONFIG_LOCALVERSION)))

910

911

# If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called

911

# If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called

912

# and if the SCM is know a tag from the SCM is appended.

912

# and if the SCM is know a tag from the SCM is appended.

913

# The appended tag is determined by the SCM used.

913

# The appended tag is determined by the SCM used.

914

#

914

#

915

# .scmversion is used when generating rpm packages so we do not loose

915

# .scmversion is used when generating rpm packages so we do not loose

916

# the version information from the SCM when we do the build of the kernel

916

# the version information from the SCM when we do the build of the kernel

917

# from the copied source

917

# from the copied source

918

ifdef CONFIG_LOCALVERSION_AUTO

918

ifdef CONFIG_LOCALVERSION_AUTO

919

920

ifeq ($(wildcard .scmversion),)

920

ifeq ($(wildcard .scmversion),)

921

_localver-auto = $(shell $(CONFIG_SHELL) \

921

_localver-auto = $(shell $(CONFIG_SHELL) \

922

$(srctree)/scripts/setlocalversion $(srctree))

922

$(srctree)/scripts/setlocalversion $(srctree))

923

else

923

else

924

_localver-auto = $(shell cat .scmversion 2> /dev/null)

924

_localver-auto = $(shell cat .scmversion 2> /dev/null)

925

endif

925

endif

926

927

localver-auto = $(LOCALVERSION)$(_localver-auto)

927

localver-auto = $(LOCALVERSION)$(_localver-auto)

928

endif

928

endif

929

930

localver-full = $(localver)$(localver-auto)

930

localver-full = $(localver)$(localver-auto)

931

932

# Store (new) KERNELRELASE string in include/config/kernel.release

932

# Store (new) KERNELRELASE string in include/config/kernel.release

933

kernelrelease = $(KERNELVERSION)$(localver-full)

933

kernelrelease = $(KERNELVERSION)$(localver-full)

934

include/config/kernel.release: include/config/auto.conf FORCE

934

include/config/kernel.release: include/config/auto.conf FORCE

935

$(Q)rm -f $@

935

$(Q)rm -f $@

936

$(Q)echo $(kernelrelease) > $@

936

$(Q)echo $(kernelrelease) > $@

937

938

939

# Things we need to do before we recursively start building the kernel

939

# Things we need to do before we recursively start building the kernel

940

# or the modules are listed in "prepare".

940

# or the modules are listed in "prepare".

941

# A multi level approach is used. prepareN is processed before prepareN-1.

941

# A multi level approach is used. prepareN is processed before prepareN-1.

942

# archprepare is used in arch Makefiles and when processed asm symlink,

942

# archprepare is used in arch Makefiles and when processed asm symlink,

943

# version.h and scripts_basic is processed / created.

943

# version.h and scripts_basic is processed / created.

944

945

# Listed in dependency order

945

# Listed in dependency order

946

PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3

946

PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3

947

948

# prepare3 is used to check if we are building in a separate output directory,

948

# prepare3 is used to check if we are building in a separate output directory,

949

# and if so do:

949

# and if so do:

950

# 1) Check that make has not been executed in the kernel src $(srctree)

950

# 1) Check that make has not been executed in the kernel src $(srctree)

951

# 2) Create the include2 directory, used for the second asm symlink

951

# 2) Create the include2 directory, used for the second asm symlink

952

prepare3: include/config/kernel.release

952

prepare3: include/config/kernel.release

953

ifneq ($(KBUILD_SRC),)

953

ifneq ($(KBUILD_SRC),)

954

@$(kecho) ' Using $(srctree) as source for kernel'

954

@$(kecho) ' Using $(srctree) as source for kernel'

955

$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \

955

$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \

956

echo " $(srctree) is not clean, please run 'make mrproper'";\

956

echo " $(srctree) is not clean, please run 'make mrproper'";\

957

echo " in the '$(srctree)' directory.";\

957

echo " in the '$(srctree)' directory.";\

958

/bin/false; \

958

/bin/false; \

959

fi;

959

fi;

960

$(Q)if [ ! -d include2 ]; then \

960

$(Q)if [ ! -d include2 ]; then \

961

mkdir -p include2; \

961

mkdir -p include2; \

962

ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm; \

962

ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm; \

963

fi

963

fi

964

endif

964

endif

965

966

# prepare2 creates a makefile if using a separate output directory

966

# prepare2 creates a makefile if using a separate output directory

967

prepare2: prepare3 outputmakefile

967

prepare2: prepare3 outputmakefile

968

969

prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \

969

prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \

970

include/asm include/config/auto.conf

970

include/asm include/config/auto.conf

971

$(cmd_crmodverdir)

971

$(cmd_crmodverdir)

972

973

archprepare: prepare1 scripts_basic

973

archprepare: prepare1 scripts_basic

974

975

prepare0: archprepare FORCE

975

prepare0: archprepare FORCE

976

$(Q)$(MAKE) $(build)=.

976

$(Q)$(MAKE) $(build)=.

977

$(Q)$(MAKE) $(build)=. missing-syscalls

977

$(Q)$(MAKE) $(build)=. missing-syscalls

978

979

# All the preparing..

979

# All the preparing..

980

prepare: prepare0

980

prepare: prepare0

981

982

# Leave this as default for preprocessing vmlinux.lds.S, which is now

982

# Leave this as default for preprocessing vmlinux.lds.S, which is now

983

# done in arch/$(ARCH)/kernel/Makefile

983

# done in arch/$(ARCH)/kernel/Makefile

984

985

export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)

985

export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)

986

987

# The asm symlink changes when $(ARCH) changes.

987

# The asm symlink changes when $(ARCH) changes.

988

# Detect this and ask user to run make mrproper

988

# Detect this and ask user to run make mrproper

989

# If asm is a stale symlink (point to dir that does not exist) remove it

989

# If asm is a stale symlink (point to dir that does not exist) remove it

990

define check-symlink

990

define check-symlink

991

set -e; \

991

set -e; \

992

if [ -L include/asm ]; then \

992

if [ -L include/asm ]; then \

993

asmlink=`readlink include/asm | cut -d '-' -f 2`; \

993

asmlink=`readlink include/asm | cut -d '-' -f 2`; \

994

if [ "$$asmlink" != "$(SRCARCH)" ]; then \

994

if [ "$$asmlink" != "$(SRCARCH)" ]; then \

995

echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \

995

echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \

996

echo " set ARCH or save .config and run 'make mrproper' to fix it"; \

996

echo " set ARCH or save .config and run 'make mrproper' to fix it"; \

997

exit 1; \

997

exit 1; \

998

fi; \

998

fi; \

999

test -e $$asmlink || rm include/asm; \

999

test -e $$asmlink || rm include/asm; \

1000

elif [ -d include/asm ]; then \

1000

elif [ -d include/asm ]; then \

1001

echo "ERROR: $@ is a directory but a symlink was expected";\

1001

echo "ERROR: $@ is a directory but a symlink was expected";\

1002

exit 1; \

1002

exit 1; \

1003

fi

1003

fi

1004

endef

1004

endef

1005

1006

# We create the target directory of the symlink if it does

1006

# We create the target directory of the symlink if it does

1007

# not exist so the test in check-symlink works and we have a

1007

# not exist so the test in check-symlink works and we have a

1008

# directory for generated filesas used by some architectures.

1008

# directory for generated filesas used by some architectures.

1009

define create-symlink

1009

define create-symlink

1010

if [ ! -L include/asm ]; then \

1010

if [ ! -L include/asm ]; then \

1011

$(kecho) ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \

1011

$(kecho) ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \

1012

if [ ! -d include/asm-$(SRCARCH) ]; then \

1012

if [ ! -d include/asm-$(SRCARCH) ]; then \

1013

mkdir -p include/asm-$(SRCARCH); \

1013

mkdir -p include/asm-$(SRCARCH); \

1014

fi; \

1014

fi; \

1015

ln -fsn asm-$(SRCARCH) $@; \

1015

ln -fsn asm-$(SRCARCH) $@; \

1016

fi

1016

fi

1017

endef

1017

endef

1018

1019

include/asm: FORCE

1019

include/asm: FORCE

1020

$(Q)$(check-symlink)

1020

$(Q)$(check-symlink)

1021

$(Q)$(create-symlink)

1021

$(Q)$(create-symlink)

1022

1023

# Generate some files

1023

# Generate some files

1024

# ---------------------------------------------------------------------------

1024

# ---------------------------------------------------------------------------

1025

1026

# KERNELRELEASE can change from a few different places, meaning version.h

1026

# KERNELRELEASE can change from a few different places, meaning version.h

1027

# needs to be updated, so this check is forced on all builds

1027

# needs to be updated, so this check is forced on all builds

1028

1029

uts_len := 64

1029

uts_len := 64

1030

define filechk_utsrelease.h

1030

define filechk_utsrelease.h

1031

if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \

1031

if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \

1032

echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \

1032

echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \

1033

exit 1; \

1033

exit 1; \

1034

fi; \

1034

fi; \

1035

(echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";)

1035

(echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";)

1036

endef

1036

endef

1037

1038

define filechk_version.h

1038

define filechk_version.h

1039

(echo \#define LINUX_VERSION_CODE $(shell \

1039

(echo \#define LINUX_VERSION_CODE $(shell \

1040

expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \

1040

expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \

1041

echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)

1041

echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)

1042

endef

1042

endef

1043

1044

include/linux/version.h: $(srctree)/Makefile FORCE

1044

include/linux/version.h: $(srctree)/Makefile FORCE

1045

$(call filechk,version.h)

1045

$(call filechk,version.h)

1046

1047

include/linux/utsrelease.h: include/config/kernel.release FORCE

1047

include/linux/utsrelease.h: include/config/kernel.release FORCE

1048

$(call filechk,utsrelease.h)

1048

$(call filechk,utsrelease.h)

1049

1050

PHONY += headerdep

1050

PHONY += headerdep

1051

headerdep:

1051

headerdep:

1052

$(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl

1052

$(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl

1053

1054

# ---------------------------------------------------------------------------

1054

# ---------------------------------------------------------------------------

1055

1056

PHONY += depend dep

1056

PHONY += depend dep

1057

depend dep:

1057

depend dep:

1058

@echo '*** Warning: make $@ is unnecessary now.'

1058

@echo '*** Warning: make $@ is unnecessary now.'

1059

1060

# ---------------------------------------------------------------------------

1060

# ---------------------------------------------------------------------------

1061

# Firmware install

1061

# Firmware install

1062

INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware

1062

INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware

1063

export INSTALL_FW_PATH

1063

export INSTALL_FW_PATH

1064

1065

PHONY += firmware_install

1065

PHONY += firmware_install

1066

firmware_install: FORCE

1066

firmware_install: FORCE

1067

@mkdir -p $(objtree)/firmware

1067

@mkdir -p $(objtree)/firmware

1068

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install

1068

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install

1069

1070

# ---------------------------------------------------------------------------

1070

# ---------------------------------------------------------------------------

1071

# Kernel headers

1071

# Kernel headers

1072

1073

#Default location for installed headers

1073

#Default location for installed headers

1074

export INSTALL_HDR_PATH = $(objtree)/usr

1074

export INSTALL_HDR_PATH = $(objtree)/usr

1075

1076

hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj

1076

hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj

1077

# Find out where the Kbuild file is located to support

1077

# Find out where the Kbuild file is located to support

1078

# arch/$(ARCH)/include/asm

1078

# arch/$(ARCH)/include/asm

1079

hdr-dir = $(strip \

1079

hdr-dir = $(strip \

1080

$(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild), \

1080

$(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild), \

1081

arch/$(hdr-arch)/include/asm, include/asm-$(hdr-arch)))

1081

arch/$(hdr-arch)/include/asm, include/asm-$(hdr-arch)))

1082

1083

# If we do an all arch process set dst to asm-$(hdr-arch)

1083

# If we do an all arch process set dst to asm-$(hdr-arch)

1084

hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)

1084

hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)

1085

1086

PHONY += __headers

1086

PHONY += __headers

1087

__headers: include/linux/version.h scripts_basic FORCE

1087

__headers: include/linux/version.h scripts_basic FORCE

1088

$(Q)$(MAKE) $(build)=scripts scripts/unifdef

1088

$(Q)$(MAKE) $(build)=scripts scripts/unifdef

1089

1090

PHONY += headers_install_all

1090

PHONY += headers_install_all

1091

headers_install_all:

1091

headers_install_all:

1092

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install

1092

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install

1093

1094

PHONY += headers_install

1094

PHONY += headers_install

1095

headers_install: __headers

1095

headers_install: __headers

1096

$(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \

1096

$(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \

1097

$(error Headers not exportable for the $(SRCARCH) architecture))

1097

$(error Headers not exportable for the $(SRCARCH) architecture))

1098

$(Q)$(MAKE) $(hdr-inst)=include

1098

$(Q)$(MAKE) $(hdr-inst)=include

1099

$(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst)

1099

$(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst)

1100

1101

PHONY += headers_check_all

1101

PHONY += headers_check_all

1102

headers_check_all: headers_install_all

1102

headers_check_all: headers_install_all

1103

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check

1103

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check

1104

1105

PHONY += headers_check

1105

PHONY += headers_check

1106

headers_check: headers_install

1106

headers_check: headers_install

1107

$(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1

1107

$(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1

1108

$(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1

1108

$(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1

1109

1110

# ---------------------------------------------------------------------------

1110

# ---------------------------------------------------------------------------

1111

# Modules

1111

# Modules

1112

1113

ifdef CONFIG_MODULES

1113

ifdef CONFIG_MODULES

1114

1115

# By default, build modules as well

1115

# By default, build modules as well

1116

1117

all: modules

1117

all: modules

1118

1119

# Build modules

1119

# Build modules

1120

#

1120

#

1121

# A module can be listed more than once in obj-m resulting in

1121

# A module can be listed more than once in obj-m resulting in

1122

# duplicate lines in modules.order files. Those are removed

1122

# duplicate lines in modules.order files. Those are removed

1123

# using awk while concatenating to the final file.

1123

# using awk while concatenating to the final file.

1124

1125

PHONY += modules

1125

PHONY += modules

1126

modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)

1126

modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)

1127

$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order

1127

$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order

1128

@$(kecho) ' Building modules, stage 2.';

1128

@$(kecho) ' Building modules, stage 2.';

1129

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost

1129

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost

1130

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild

1130

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild

1131

1132

1133

# Target to prepare building external modules

1133

# Target to prepare building external modules

1134

PHONY += modules_prepare

1134

PHONY += modules_prepare

1135

modules_prepare: prepare scripts

1135

modules_prepare: prepare scripts

1136

1137

# Target to install modules

1137

# Target to install modules

1138

PHONY += modules_install

1138

PHONY += modules_install

1139

modules_install: _modinst_ _modinst_post

1139

modules_install: _modinst_ _modinst_post

1140

1141

PHONY += _modinst_

1141

PHONY += _modinst_

1142

_modinst_:

1142

_modinst_:

1143

@if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \

1143

@if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \

1144

echo "Warning: you may need to install module-init-tools"; \

1144

echo "Warning: you may need to install module-init-tools"; \

1145

echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\

1145

echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\

1146

sleep 1; \

1146

sleep 1; \

1147

fi

1147

fi

1148

@rm -rf $(MODLIB)/kernel

1148

@rm -rf $(MODLIB)/kernel

1149

@rm -f $(MODLIB)/source

1149

@rm -f $(MODLIB)/source

1150

@mkdir -p $(MODLIB)/kernel

1150

@mkdir -p $(MODLIB)/kernel

1151

@ln -s $(srctree) $(MODLIB)/source

1151

@ln -s $(srctree) $(MODLIB)/source

1152

@if [ ! $(objtree) -ef $(MODLIB)/build ]; then \

1152

@if [ ! $(objtree) -ef $(MODLIB)/build ]; then \

1153

rm -f $(MODLIB)/build ; \

1153

rm -f $(MODLIB)/build ; \

1154

ln -s $(objtree) $(MODLIB)/build ; \

1154

ln -s $(objtree) $(MODLIB)/build ; \

1155

fi

1155

fi

1156

@cp -f $(objtree)/modules.order $(MODLIB)/

1156

@cp -f $(objtree)/modules.order $(MODLIB)/

1157

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst

1157

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst

1158

1159

# This depmod is only for convenience to give the initial

1159

# This depmod is only for convenience to give the initial

1160

# boot a modules.dep even before / is mounted read-write. However the

1160

# boot a modules.dep even before / is mounted read-write. However the

1161

# boot script depmod is the master version.

1161

# boot script depmod is the master version.

1162

PHONY += _modinst_post

1162

PHONY += _modinst_post

1163

_modinst_post: _modinst_

1163

_modinst_post: _modinst_

1164

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst

1164

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst

1165

$(call cmd,depmod)

1165

$(call cmd,depmod)

1166

1167

else # CONFIG_MODULES

1167

else # CONFIG_MODULES

1168

1169

# Modules not configured

1169

# Modules not configured

1170

# ---------------------------------------------------------------------------

1170

# ---------------------------------------------------------------------------

1171

1172

modules modules_install: FORCE

1172

modules modules_install: FORCE

1173

@echo

1173

@echo

1174

@echo "The present kernel configuration has modules disabled."

1174

@echo "The present kernel configuration has modules disabled."

1175

@echo "Type 'make config' and enable loadable module support."

1175

@echo "Type 'make config' and enable loadable module support."

1176

@echo "Then build a kernel with module support enabled."

1176

@echo "Then build a kernel with module support enabled."

1177

@echo

1177

@echo

1178

@exit 1

1178

@exit 1

1179

1180

endif # CONFIG_MODULES

1180

endif # CONFIG_MODULES

1181

1182

###

1182

###

1183

# Cleaning is done on three levels.

1183

# Cleaning is done on three levels.

1184

# make clean Delete most generated files

1184

# make clean Delete most generated files

1185

# Leave enough to build external modules

1185

# Leave enough to build external modules

1186

# make mrproper Delete the current configuration, and all generated files

1186

# make mrproper Delete the current configuration, and all generated files

1187

# make distclean Remove editor backup files, patch leftover files and the like

1187

# make distclean Remove editor backup files, patch leftover files and the like

1188

1189

# Directories & files removed with 'make clean'

1189

# Directories & files removed with 'make clean'

1190

CLEAN_DIRS += $(MODVERDIR)

1190

CLEAN_DIRS += $(MODVERDIR)

1191

CLEAN_FILES += vmlinux System.map \

1191

CLEAN_FILES += vmlinux System.map \

1192

.tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map

1192

.tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map

1193

1194

# Directories & files removed with 'make mrproper'

1194

# Directories & files removed with 'make mrproper'

1195

MRPROPER_DIRS += include/config include2 usr/include include/generated

1195

MRPROPER_DIRS += include/config include2 usr/include include/generated

1196

MRPROPER_FILES += .config .config.old include/asm .version .old_version \

1196

MRPROPER_FILES += .config .config.old include/asm .version .old_version \

1197

include/linux/autoconf.h include/linux/version.h \

1197

include/linux/autoconf.h include/linux/version.h \

1198

include/linux/utsrelease.h \

1198

include/linux/utsrelease.h \

1199

include/linux/bounds.h include/asm*/asm-offsets.h \

1199

include/linux/bounds.h include/asm*/asm-offsets.h \

1200

Module.symvers Module.markers tags TAGS cscope*

1200

Module.symvers Module.markers tags TAGS cscope*

1201

1202

# clean - Delete most, but leave enough to build external modules

1202

# clean - Delete most, but leave enough to build external modules

1203

#

1203

#

1204

clean: rm-dirs := $(CLEAN_DIRS)

1204

clean: rm-dirs := $(CLEAN_DIRS)

1205

clean: rm-files := $(CLEAN_FILES)

1205

clean: rm-files := $(CLEAN_FILES)

1206

clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs) Documentation)

1206

clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs) Documentation)

1207

1208

PHONY += $(clean-dirs) clean archclean

1208

PHONY += $(clean-dirs) clean archclean

1209

$(clean-dirs):

1209

$(clean-dirs):

1210

$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)

1210

$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)

1211

1212

clean: archclean $(clean-dirs)

1212

clean: archclean $(clean-dirs)

1213

$(call cmd,rmdirs)

1213

$(call cmd,rmdirs)

1214

$(call cmd,rmfiles)

1214

$(call cmd,rmfiles)

1215

@find . $(RCS_FIND_IGNORE) \

1215

@find . $(RCS_FIND_IGNORE) \

1216

\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \

1216

\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \

1217

-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \

1217

-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \

1218

-o -name '*.symtypes' -o -name 'modules.order' \

1218

-o -name '*.symtypes' -o -name 'modules.order' \

1219

-o -name 'Module.markers' -o -name '.tmp_*.o.*' \

1219

-o -name 'Module.markers' -o -name '.tmp_*.o.*' \

1220

-o -name '*.gcno' \) -type f -print | xargs rm -f

1220

-o -name '*.gcno' \) -type f -print | xargs rm -f

1221

1222

# mrproper - Delete all generated files, including .config

1222

# mrproper - Delete all generated files, including .config

1223

#

1223

#

1224

mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))

1224

mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))

1225

mrproper: rm-files := $(wildcard $(MRPROPER_FILES))

1225

mrproper: rm-files := $(wildcard $(MRPROPER_FILES))

1226

mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)

1226

mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)

1227

1228

PHONY += $(mrproper-dirs) mrproper archmrproper

1228

PHONY += $(mrproper-dirs) mrproper archmrproper

1229

$(mrproper-dirs):

1229

$(mrproper-dirs):

1230

$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)

1230

$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)

1231

1232

mrproper: clean archmrproper $(mrproper-dirs)

1232

mrproper: clean archmrproper $(mrproper-dirs)

1233

$(call cmd,rmdirs)

1233

$(call cmd,rmdirs)

1234

$(call cmd,rmfiles)

1234

$(call cmd,rmfiles)

1235

1236

# distclean

1236

# distclean

1237

#

1237

#

1238

PHONY += distclean

1238

PHONY += distclean

1239

1240

distclean: mrproper

1240

distclean: mrproper

1241

@find $(srctree) $(RCS_FIND_IGNORE) \

1241

@find $(srctree) $(RCS_FIND_IGNORE) \

1242

\( -name '*.orig' -o -name '*.rej' -o -name '*~' \

1242

\( -name '*.orig' -o -name '*.rej' -o -name '*~' \

1243

-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \

1243

-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \

1244

-o -name '.*.rej' -o -size 0 \

1244

-o -name '.*.rej' -o -size 0 \

1245

-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \

1245

-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \

1246

-type f -print | xargs rm -f

1246

-type f -print | xargs rm -f

1247

1248

1249

# Packaging of the kernel to various formats

1249

# Packaging of the kernel to various formats

1250

# ---------------------------------------------------------------------------

1250

# ---------------------------------------------------------------------------

1251

# rpm target kept for backward compatibility

1251

# rpm target kept for backward compatibility

1252

package-dir := $(srctree)/scripts/package

1252

package-dir := $(srctree)/scripts/package

1253

1254

%pkg: include/config/kernel.release FORCE

1254

%pkg: include/config/kernel.release FORCE

1255

$(Q)$(MAKE) $(build)=$(package-dir) $@

1255

$(Q)$(MAKE) $(build)=$(package-dir) $@

1256

rpm: include/config/kernel.release FORCE

1256

rpm: include/config/kernel.release FORCE

1257

$(Q)$(MAKE) $(build)=$(package-dir) $@

1257

$(Q)$(MAKE) $(build)=$(package-dir) $@

1258

1259

1260

# Brief documentation of the typical targets used

1260

# Brief documentation of the typical targets used

1261

# ---------------------------------------------------------------------------

1261

# ---------------------------------------------------------------------------

1262

1263

boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)

1263

boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)

1264

boards := $(notdir $(boards))

1264

boards := $(notdir $(boards))

1265

board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))

1265

board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))

1266

board-dirs := $(sort $(notdir $(board-dirs:/=)))

1266

board-dirs := $(sort $(notdir $(board-dirs:/=)))

1267

1268

help:

1268

help:

1269

@echo 'Cleaning targets:'

1269

@echo 'Cleaning targets:'

1270

@echo ' clean - Remove most generated files but keep the config and'

1270

@echo ' clean - Remove most generated files but keep the config and'

1271

@echo ' enough build support to build external modules'

1271

@echo ' enough build support to build external modules'

1272

@echo ' mrproper - Remove all generated files + config + various backup files'

1272

@echo ' mrproper - Remove all generated files + config + various backup files'

1273

@echo ' distclean - mrproper + remove editor backup and patch files'

1273

@echo ' distclean - mrproper + remove editor backup and patch files'

1274

@echo ''

1274

@echo ''

1275

@echo 'Configuration targets:'

1275

@echo 'Configuration targets:'

1276

@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help

1276

@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help

1277

@echo ''

1277

@echo ''

1278

@echo 'Other generic targets:'

1278

@echo 'Other generic targets:'

1279

@echo ' all - Build all targets marked with [*]'

1279

@echo ' all - Build all targets marked with [*]'

1280

@echo '* vmlinux - Build the bare kernel'

1280

@echo '* vmlinux - Build the bare kernel'

1281

@echo '* modules - Build all modules'

1281

@echo '* modules - Build all modules'

1282

@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'

1282

@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'

1283

@echo ' firmware_install- Install all firmware to INSTALL_FW_PATH'

1283

@echo ' firmware_install- Install all firmware to INSTALL_FW_PATH'

1284

@echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'

1284

@echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'

1285

@echo ' dir/ - Build all files in dir and below'

1285

@echo ' dir/ - Build all files in dir and below'

1286

@echo ' dir/file.[ois] - Build specified target only'

1286

@echo ' dir/file.[ois] - Build specified target only'

1287

@echo ' dir/file.ko - Build module including final link'

1287

@echo ' dir/file.ko - Build module including final link'

1288

@echo ' modules_prepare - Set up for building external modules'

1288

@echo ' modules_prepare - Set up for building external modules'

1289

@echo ' tags/TAGS - Generate tags file for editors'

1289

@echo ' tags/TAGS - Generate tags file for editors'

1290

@echo ' cscope - Generate cscope index'

1290

@echo ' cscope - Generate cscope index'

1291

@echo ' kernelrelease - Output the release version string'

1291

@echo ' kernelrelease - Output the release version string'

1292

@echo ' kernelversion - Output the version stored in Makefile'

1292

@echo ' kernelversion - Output the version stored in Makefile'

1293

@echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \

1293

@echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \

1294

echo ' (default: $(INSTALL_HDR_PATH))'; \

1294

echo ' (default: $(INSTALL_HDR_PATH))'; \

1295

echo ''

1295

echo ''

1296

@echo 'Static analysers'

1296

@echo 'Static analysers'

1297

@echo ' checkstack - Generate a list of stack hogs'

1297

@echo ' checkstack - Generate a list of stack hogs'

1298

@echo ' namespacecheck - Name space analysis on compiled kernel'

1298

@echo ' namespacecheck - Name space analysis on compiled kernel'

1299

@echo ' versioncheck - Sanity check on version.h usage'

1299

@echo ' versioncheck - Sanity check on version.h usage'

1300

@echo ' includecheck - Check for duplicate included header files'

1300

@echo ' includecheck - Check for duplicate included header files'

1301

@echo ' export_report - List the usages of all exported symbols'

1301

@echo ' export_report - List the usages of all exported symbols'

1302

@echo ' headers_check - Sanity check on exported headers'

1302

@echo ' headers_check - Sanity check on exported headers'

1303

@echo ' headerdep - Detect inclusion cycles in headers'; \

1303

@echo ' headerdep - Detect inclusion cycles in headers'; \

1304

echo ''

1304

echo ''

1305

@echo 'Kernel packaging:'

1305

@echo 'Kernel packaging:'

1306

@$(MAKE) $(build)=$(package-dir) help

1306

@$(MAKE) $(build)=$(package-dir) help

1307

@echo ''

1307

@echo ''

1308

@echo 'Documentation targets:'

1308

@echo 'Documentation targets:'

1309

@$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp

1309

@$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp

1310

@echo ''

1310

@echo ''

1311

@echo 'Architecture specific targets ($(SRCARCH)):'

1311

@echo 'Architecture specific targets ($(SRCARCH)):'

1312

@$(if $(archhelp),$(archhelp),\

1312

@$(if $(archhelp),$(archhelp),\

1313

echo ' No architecture specific help defined for $(SRCARCH)')

1313

echo ' No architecture specific help defined for $(SRCARCH)')

1314

@echo ''

1314

@echo ''

1315

@$(if $(boards), \

1315

@$(if $(boards), \

1316

$(foreach b, $(boards), \

1316

$(foreach b, $(boards), \

1317

printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \

1317

printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \

1318

echo '')

1318

echo '')

1319

@$(if $(board-dirs), \

1319

@$(if $(board-dirs), \

1320

$(foreach b, $(board-dirs), \

1320

$(foreach b, $(board-dirs), \

1321

printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \

1321

printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \

1322

printf " %-16s - Show all of the above\\n" help-boards; \

1322

printf " %-16s - Show all of the above\\n" help-boards; \

1323

echo '')

1323

echo '')

1324

1325

@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'

1325

@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'

1326

@echo ' make V=2 [targets] 2 => give reason for rebuild of target'

1326

@echo ' make V=2 [targets] 2 => give reason for rebuild of target'

1327

@echo ' make O=dir [targets] Locate all output files in "dir", including .config'

1327

@echo ' make O=dir [targets] Locate all output files in "dir", including .config'

1328

@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'

1328

@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'

1329

@echo ' make C=2 [targets] Force check of all c source with $$CHECK'

1329

@echo ' make C=2 [targets] Force check of all c source with $$CHECK'

1330

@echo ''

1330

@echo ''

1331

@echo 'Execute "make" or "make all" to build all targets marked with [*] '

1331

@echo 'Execute "make" or "make all" to build all targets marked with [*] '

1332

@echo 'For further info see the ./README file'

1332

@echo 'For further info see the ./README file'

1333

1334

1335

help-board-dirs := $(addprefix help-,$(board-dirs))

1335

help-board-dirs := $(addprefix help-,$(board-dirs))

1336

1337

help-boards: $(help-board-dirs)

1337

help-boards: $(help-board-dirs)

1338

1339

boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))

1339

boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))

1340

1341

$(help-board-dirs): help-%:

1341

$(help-board-dirs): help-%:

1342

@echo 'Architecture specific targets ($(SRCARCH) $*):'

1342

@echo 'Architecture specific targets ($(SRCARCH) $*):'

1343

@$(if $(boards-per-dir), \

1343

@$(if $(boards-per-dir), \

1344

$(foreach b, $(boards-per-dir), \

1344

$(foreach b, $(boards-per-dir), \

1345

printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \

1345

printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \

1346

echo '')

1346

echo '')

1347

1348

1349

# Documentation targets

1349

# Documentation targets

1350

# ---------------------------------------------------------------------------

1350

# ---------------------------------------------------------------------------

1351

%docs: scripts_basic FORCE

1351

%docs: scripts_basic FORCE

1352

$(Q)$(MAKE) $(build)=Documentation/DocBook $@

1352

$(Q)$(MAKE) $(build)=Documentation/DocBook $@

1353

1354

else # KBUILD_EXTMOD

1354

else # KBUILD_EXTMOD

1355

1356

###

1356

###

1357

# External module support.

1357

# External module support.

1358

# When building external modules the kernel used as basis is considered

1358

# When building external modules the kernel used as basis is considered

1359

# read-only, and no consistency checks are made and the make

1359

# read-only, and no consistency checks are made and the make

1360

# system is not used on the basis kernel. If updates are required

1360

# system is not used on the basis kernel. If updates are required

1361

# in the basis kernel ordinary make commands (without M=...) must

1361

# in the basis kernel ordinary make commands (without M=...) must

1362

# be used.

1362

# be used.

1363

#

1363

#

1364

# The following are the only valid targets when building external

1364

# The following are the only valid targets when building external

1365

# modules.

1365

# modules.

1366

# make M=dir clean Delete all automatically generated files

1366

# make M=dir clean Delete all automatically generated files

1367

# make M=dir modules Make all modules in specified dir

1367

# make M=dir modules Make all modules in specified dir

1368

# make M=dir Same as 'make M=dir modules'

1368

# make M=dir Same as 'make M=dir modules'

1369

# make M=dir modules_install

1369

# make M=dir modules_install

1370

# Install the modules built in the module directory

1370

# Install the modules built in the module directory

1371

# Assumes install directory is already created

1371

# Assumes install directory is already created

1372

1373

# We are always building modules

1373

# We are always building modules

1374

KBUILD_MODULES := 1

1374

KBUILD_MODULES := 1

1375

PHONY += crmodverdir

1375

PHONY += crmodverdir

1376

crmodverdir:

1376

crmodverdir:

1377

$(cmd_crmodverdir)

1377

$(cmd_crmodverdir)

1378

1379

PHONY += $(objtree)/Module.symvers

1379

PHONY += $(objtree)/Module.symvers

1380

$(objtree)/Module.symvers:

1380

$(objtree)/Module.symvers:

1381

@test -e $(objtree)/Module.symvers || ( \

1381

@test -e $(objtree)/Module.symvers || ( \

1382

echo; \

1382

echo; \

1383

echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \

1383

echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \

1384

echo " is missing; modules will have no dependencies and modversions."; \

1384

echo " is missing; modules will have no dependencies and modversions."; \

1385

echo )

1385

echo )

1386

1387

module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))

1387

module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))

1388

PHONY += $(module-dirs) modules

1388

PHONY += $(module-dirs) modules

1389

$(module-dirs): crmodverdir $(objtree)/Module.symvers

1389

$(module-dirs): crmodverdir $(objtree)/Module.symvers

1390

$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)

1390

$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)

1391

1392

modules: $(module-dirs)

1392

modules: $(module-dirs)

1393

@$(kecho) ' Building modules, stage 2.';

1393

@$(kecho) ' Building modules, stage 2.';

1394

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost

1394

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost

1395

1396

PHONY += modules_install

1396

PHONY += modules_install

1397

modules_install: _emodinst_ _emodinst_post

1397

modules_install: _emodinst_ _emodinst_post

1398

1399

install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)

1399

install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)

1400

PHONY += _emodinst_

1400

PHONY += _emodinst_

1401

_emodinst_:

1401

_emodinst_:

1402

$(Q)mkdir -p $(MODLIB)/$(install-dir)

1402

$(Q)mkdir -p $(MODLIB)/$(install-dir)

1403

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst

1403

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst

1404

1405

PHONY += _emodinst_post

1405

PHONY += _emodinst_post

1406

_emodinst_post: _emodinst_

1406

_emodinst_post: _emodinst_

1407

$(call cmd,depmod)

1407

$(call cmd,depmod)

1408

1409

clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))

1409

clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))

1410

1411

PHONY += $(clean-dirs) clean

1411

PHONY += $(clean-dirs) clean

1412

$(clean-dirs):

1412

$(clean-dirs):

1413

$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)

1413

$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)

1414

1415

clean: rm-dirs := $(MODVERDIR)

1415

clean: rm-dirs := $(MODVERDIR)

1416

clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers \

1416

clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers \

1417

$(KBUILD_EXTMOD)/Module.markers \

1417

$(KBUILD_EXTMOD)/Module.markers \

1418

$(KBUILD_EXTMOD)/modules.order

1418

$(KBUILD_EXTMOD)/modules.order

1419

clean: $(clean-dirs)

1419

clean: $(clean-dirs)

1420

$(call cmd,rmdirs)

1420

$(call cmd,rmdirs)

1421

$(call cmd,rmfiles)

1421

$(call cmd,rmfiles)

1422

@find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \

1422

@find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \

1423

\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \

1423

\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \

1424

-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \

1424

-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \

1425

-o -name '*.gcno' \) -type f -print | xargs rm -f

1425

-o -name '*.gcno' \) -type f -print | xargs rm -f

1426

1427

help:

1427

help:

1428

@echo ' Building external modules.'

1428

@echo ' Building external modules.'

1429

@echo ' Syntax: make -C path/to/kernel/src M=$$PWD target'

1429

@echo ' Syntax: make -C path/to/kernel/src M=$$PWD target'

1430

@echo ''

1430

@echo ''

1431

@echo ' modules - default target, build the module(s)'

1431

@echo ' modules - default target, build the module(s)'

1432

@echo ' modules_install - install the module'

1432

@echo ' modules_install - install the module'

1433

@echo ' clean - remove generated files in module directory only'

1433

@echo ' clean - remove generated files in module directory only'

1434

@echo ''

1434

@echo ''

1435

1436

# Dummies...

1436

# Dummies...

1437

PHONY += prepare scripts

1437

PHONY += prepare scripts

1438

prepare: ;

1438

prepare: ;

1439

scripts: ;

1439

scripts: ;

1440

endif # KBUILD_EXTMOD

1440

endif # KBUILD_EXTMOD

1441

1442

# Generate tags for editors

1442

# Generate tags for editors

1443

# ---------------------------------------------------------------------------

1443

# ---------------------------------------------------------------------------

1444

quiet_cmd_tags = GEN $@

1444

quiet_cmd_tags = GEN $@

1445

cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@

1445

cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@

1446

1447

tags TAGS cscope: FORCE

1447

tags TAGS cscope: FORCE

1448

$(call cmd,tags)

1448

$(call cmd,tags)

1449

1450

# Scripts to check various things for consistency

1450

# Scripts to check various things for consistency

1451

# ---------------------------------------------------------------------------

1451

# ---------------------------------------------------------------------------

1452

1453

includecheck:

1453

includecheck:

1454

find * $(RCS_FIND_IGNORE) \

1454

find * $(RCS_FIND_IGNORE) \

1455

-name '*.[hcS]' -type f -print | sort \

1455

-name '*.[hcS]' -type f -print | sort \

1456

| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl

1456

| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl

1457

1458

versioncheck:

1458

versioncheck:

1459

find * $(RCS_FIND_IGNORE) \

1459

find * $(RCS_FIND_IGNORE) \

1460

-name '*.[hcS]' -type f -print | sort \

1460

-name '*.[hcS]' -type f -print | sort \

1461

| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl

1461

| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl

1462

1463

namespacecheck:

1463

namespacecheck:

1464

$(PERL) $(srctree)/scripts/namespace.pl

1464

$(PERL) $(srctree)/scripts/namespace.pl

1465

1466

export_report:

1466

export_report:

1467

$(PERL) $(srctree)/scripts/export_report.pl

1467

$(PERL) $(srctree)/scripts/export_report.pl

1468

1469

endif #ifeq ($(config-targets),1)

1469

endif #ifeq ($(config-targets),1)

1470

endif #ifeq ($(mixed-targets),1)

1470

endif #ifeq ($(mixed-targets),1)

1471

1472

PHONY += checkstack kernelrelease kernelversion

1472

PHONY += checkstack kernelrelease kernelversion

1473

1474

# UML needs a little special treatment here. It wants to use the host

1474

# UML needs a little special treatment here. It wants to use the host

1475

# toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone

1475

# toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone

1476

# else wants $(ARCH), including people doing cross-builds, which means

1476

# else wants $(ARCH), including people doing cross-builds, which means

1477

# that $(SUBARCH) doesn't work here.

1477

# that $(SUBARCH) doesn't work here.

1478

ifeq ($(ARCH), um)

1478

ifeq ($(ARCH), um)

1479

CHECKSTACK_ARCH := $(SUBARCH)

1479

CHECKSTACK_ARCH := $(SUBARCH)

1480

else

1480

else

1481

CHECKSTACK_ARCH := $(ARCH)

1481

CHECKSTACK_ARCH := $(ARCH)

1482

endif

1482

endif

1483

checkstack:

1483

checkstack:

1484

$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \

1484

$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \

1485

$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)

1485

$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)

1486

1487

kernelrelease:

1487

kernelrelease:

1488

$(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \

1488

$(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \

1489

$(error kernelrelease not valid - run 'make prepare' to update it))

1489

$(error kernelrelease not valid - run 'make prepare' to update it))

1490

kernelversion:

1490

kernelversion:

1491

@echo $(KERNELVERSION)

1491

@echo $(KERNELVERSION)

1492

1493

# Single targets

1493

# Single targets

1494

# ---------------------------------------------------------------------------

1494

# ---------------------------------------------------------------------------

1495

# Single targets are compatible with:

1495

# Single targets are compatible with:

1496

# - build with mixed source and output

1496

# - build with mixed source and output

1497

# - build with separate output dir 'make O=...'

1497

# - build with separate output dir 'make O=...'

1498

# - external modules

1498

# - external modules

1499

#

1499

#

1500

# target-dir => where to store outputfile

1500

# target-dir => where to store outputfile

1501

# build-dir => directory in kernel source tree to use

1501

# build-dir => directory in kernel source tree to use

1502

1503

ifeq ($(KBUILD_EXTMOD),)

1503

ifeq ($(KBUILD_EXTMOD),)

1504

build-dir = $(patsubst %/,%,$(dir $@))

1504

build-dir = $(patsubst %/,%,$(dir $@))

1505

target-dir = $(dir $@)

1505

target-dir = $(dir $@)

1506

else

1506

else

1507

zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))

1507

zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))

1508

build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))

1508

build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))

1509

target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))

1509

target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))

1510

endif

1510

endif

1511

1512

%.s: %.c prepare scripts FORCE

1512

%.s: %.c prepare scripts FORCE

1513