Eric Lee / smarc-fsl-linux-kernel

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VERSION = 3

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VERSION = 3

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PATCHLEVEL = 2

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PATCHLEVEL = 2

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SUBLEVEL = 14

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SUBLEVEL = 15

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EXTRAVERSION =

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EXTRAVERSION =

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NAME = Saber-toothed Squirrel

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NAME = Saber-toothed Squirrel

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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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# Avoid funny character set dependencies

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# Avoid funny character set dependencies

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unexport LC_ALL

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unexport LC_ALL

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LC_COLLATE=C

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LC_COLLATE=C

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LC_NUMERIC=C

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LC_NUMERIC=C

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export LC_COLLATE LC_NUMERIC

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export LC_COLLATE LC_NUMERIC

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

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

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export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)

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export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)

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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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# A third alternative is to store a setting in .config so that plain

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# A third alternative is to store a setting in .config so that plain

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# "make" in the configured kernel build directory always uses that.

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# "make" in the configured kernel build directory always uses that.

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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 ?= $(CONFIG_CROSS_COMPILE:"%"=%)

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CROSS_COMPILE ?= $(CONFIG_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),sparc32)

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ifeq ($(ARCH),sparc32)

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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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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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# Additional ARCH settings for tile

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# Additional ARCH settings for tile

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ifeq ($(ARCH),tilepro)

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ifeq ($(ARCH),tilepro)

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SRCARCH := tile

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SRCARCH := tile

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endif

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endif

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ifeq ($(ARCH),tilegx)

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ifeq ($(ARCH),tilegx)

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SRCARCH := tile

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SRCARCH := tile

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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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export KCONFIG_CONFIG

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export KCONFIG_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 -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer

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HOSTCFLAGS = -Wall -Wmissing-prototypes -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 = @

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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_

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quiet=silent_

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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)

324

325

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

325

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

326

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

326

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

327

include $(srctree)/scripts/Kbuild.include

327

include $(srctree)/scripts/Kbuild.include

328

329

# Make variables (CC, etc...)

329

# Make variables (CC, etc...)

330

331

AS = $(CROSS_COMPILE)as

331

AS = $(CROSS_COMPILE)as

332

LD = $(CROSS_COMPILE)ld

332

LD = $(CROSS_COMPILE)ld

333

CC = $(CROSS_COMPILE)gcc

333

CC = $(CROSS_COMPILE)gcc

334

CPP = $(CC) -E

334

CPP = $(CC) -E

335

AR = $(CROSS_COMPILE)ar

335

AR = $(CROSS_COMPILE)ar

336

NM = $(CROSS_COMPILE)nm

336

NM = $(CROSS_COMPILE)nm

337

STRIP = $(CROSS_COMPILE)strip

337

STRIP = $(CROSS_COMPILE)strip

338

OBJCOPY = $(CROSS_COMPILE)objcopy

338

OBJCOPY = $(CROSS_COMPILE)objcopy

339

OBJDUMP = $(CROSS_COMPILE)objdump

339

OBJDUMP = $(CROSS_COMPILE)objdump

340

AWK = awk

340

AWK = awk

341

GENKSYMS = scripts/genksyms/genksyms

341

GENKSYMS = scripts/genksyms/genksyms

342

INSTALLKERNEL := installkernel

342

INSTALLKERNEL := installkernel

343

DEPMOD = /sbin/depmod

343

DEPMOD = /sbin/depmod

344

KALLSYMS = scripts/kallsyms

344

KALLSYMS = scripts/kallsyms

345

PERL = perl

345

PERL = perl

346

CHECK = sparse

346

CHECK = sparse

347

348

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

348

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

349

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

349

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

350

CFLAGS_MODULE =

350

CFLAGS_MODULE =

351

AFLAGS_MODULE =

351

AFLAGS_MODULE =

352

LDFLAGS_MODULE =

352

LDFLAGS_MODULE =

353

CFLAGS_KERNEL =

353

CFLAGS_KERNEL =

354

AFLAGS_KERNEL =

354

AFLAGS_KERNEL =

355

CFLAGS_GCOV = -fprofile-arcs -ftest-coverage

355

CFLAGS_GCOV = -fprofile-arcs -ftest-coverage

356

357

358

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

358

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

359

# Needed to be compatible with the O= option

359

# Needed to be compatible with the O= option

360

LINUXINCLUDE := -I$(srctree)/arch/$(hdr-arch)/include \

360

LINUXINCLUDE := -I$(srctree)/arch/$(hdr-arch)/include \

361

-Iarch/$(hdr-arch)/include/generated -Iinclude \

361

-Iarch/$(hdr-arch)/include/generated -Iinclude \

362

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

362

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

363

-include $(srctree)/include/linux/kconfig.h

363

-include $(srctree)/include/linux/kconfig.h

364

365

KBUILD_CPPFLAGS := -D__KERNEL__

365

KBUILD_CPPFLAGS := -D__KERNEL__

366

367

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

367

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

368

-fno-strict-aliasing -fno-common \

368

-fno-strict-aliasing -fno-common \

369

-Werror-implicit-function-declaration \

369

-Werror-implicit-function-declaration \

370

-Wno-format-security \

370

-Wno-format-security \

371

-fno-delete-null-pointer-checks

371

-fno-delete-null-pointer-checks

372

KBUILD_AFLAGS_KERNEL :=

372

KBUILD_AFLAGS_KERNEL :=

373

KBUILD_CFLAGS_KERNEL :=

373

KBUILD_CFLAGS_KERNEL :=

374

KBUILD_AFLAGS := -D__ASSEMBLY__

374

KBUILD_AFLAGS := -D__ASSEMBLY__

375

KBUILD_AFLAGS_MODULE := -DMODULE

375

KBUILD_AFLAGS_MODULE := -DMODULE

376

KBUILD_CFLAGS_MODULE := -DMODULE

376

KBUILD_CFLAGS_MODULE := -DMODULE

377

KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds

377

KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds

378

379

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

379

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

380

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

380

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

381

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

381

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

382

383

export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION

383

export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION

384

export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC

384

export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC

385

export CPP AR NM STRIP OBJCOPY OBJDUMP

385

export CPP AR NM STRIP OBJCOPY OBJDUMP

386

export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE

386

export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE

387

export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS

387

export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS

388

389

export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS

389

export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS

390

export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV

390

export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV

391

export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE

391

export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE

392

export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE

392

export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE

393

export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL

393

export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL

394

export KBUILD_ARFLAGS

394

export KBUILD_ARFLAGS

395

396

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

396

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

397

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

397

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

398

# even be read-only.

398

# even be read-only.

399

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

399

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

400

401

# Files to ignore in find ... statements

401

# Files to ignore in find ... statements

402

403

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

403

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

404

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

404

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

405

406

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

406

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

407

# Rules shared between *config targets and build targets

407

# Rules shared between *config targets and build targets

408

409

# Basic helpers built in scripts/

409

# Basic helpers built in scripts/

410

PHONY += scripts_basic

410

PHONY += scripts_basic

411

scripts_basic:

411

scripts_basic:

412

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

412

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

413

$(Q)rm -f .tmp_quiet_recordmcount

413

$(Q)rm -f .tmp_quiet_recordmcount

414

415

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

415

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

416

scripts/basic/%: scripts_basic ;

416

scripts/basic/%: scripts_basic ;

417

418

PHONY += outputmakefile

418

PHONY += outputmakefile

419

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

419

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

420

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

420

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

421

# output directory.

421

# output directory.

422

outputmakefile:

422

outputmakefile:

423

ifneq ($(KBUILD_SRC),)

423

ifneq ($(KBUILD_SRC),)

424

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

424

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

425

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

425

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

426

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

426

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

427

endif

427

endif

428

429

# Support for using generic headers in asm-generic

429

# Support for using generic headers in asm-generic

430

PHONY += asm-generic

430

PHONY += asm-generic

431

asm-generic:

431

asm-generic:

432

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \

432

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \

433

obj=arch/$(SRCARCH)/include/generated/asm

433

obj=arch/$(SRCARCH)/include/generated/asm

434

435

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

435

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

436

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

436

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

437

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

437

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

438

# mixing *config targets and build targets.

438

# mixing *config targets and build targets.

439

# For example 'make oldconfig all'.

439

# For example 'make oldconfig all'.

440

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

440

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

441

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

441

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

442

443

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

443

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

444

cscope gtags TAGS tags help %docs check% coccicheck \

444

cscope gtags TAGS tags help %docs check% coccicheck \

445

include/linux/version.h headers_% \

445

include/linux/version.h headers_% \

446

kernelversion %src-pkg

446

kernelversion %src-pkg

447

448

config-targets := 0

448

config-targets := 0

449

mixed-targets := 0

449

mixed-targets := 0

450

dot-config := 1

450

dot-config := 1

451

452

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

452

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

453

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

453

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

454

dot-config := 0

454

dot-config := 0

455

endif

455

endif

456

endif

456

endif

457

458

ifeq ($(KBUILD_EXTMOD),)

458

ifeq ($(KBUILD_EXTMOD),)

459

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

459

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

460

config-targets := 1

460

config-targets := 1

461

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

461

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

462

mixed-targets := 1

462

mixed-targets := 1

463

endif

463

endif

464

endif

464

endif

465

endif

465

endif

466

467

ifeq ($(mixed-targets),1)

467

ifeq ($(mixed-targets),1)

468

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

468

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

469

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

469

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

470

# Handle them one by one.

470

# Handle them one by one.

471

472

%:: FORCE

472

%:: FORCE

473

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

473

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

474

475

else

475

else

476

ifeq ($(config-targets),1)

476

ifeq ($(config-targets),1)

477

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

477

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

478

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

478

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

479

# in scripts/kconfig to make the *config target

479

# in scripts/kconfig to make the *config target

480

481

# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.

481

# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.

482

# KBUILD_DEFCONFIG may point out an alternative default configuration

482

# KBUILD_DEFCONFIG may point out an alternative default configuration

483

# used for 'make defconfig'

483

# used for 'make defconfig'

484

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

484

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

485

export KBUILD_DEFCONFIG KBUILD_KCONFIG

485

export KBUILD_DEFCONFIG KBUILD_KCONFIG

486

487

config: scripts_basic outputmakefile FORCE

487

config: scripts_basic outputmakefile FORCE

488

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

488

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

489

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

489

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

490

491

%config: scripts_basic outputmakefile FORCE

491

%config: scripts_basic outputmakefile FORCE

492

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

492

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

493

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

493

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

494

495

else

495

else

496

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

496

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

497

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

497

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

498

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

498

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

499

500

ifeq ($(KBUILD_EXTMOD),)

500

ifeq ($(KBUILD_EXTMOD),)

501

# Additional helpers built in scripts/

501

# Additional helpers built in scripts/

502

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

502

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

503

# in parallel

503

# in parallel

504

PHONY += scripts

504

PHONY += scripts

505

scripts: scripts_basic include/config/auto.conf include/config/tristate.conf

505

scripts: scripts_basic include/config/auto.conf include/config/tristate.conf

506

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

506

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

507

508

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

508

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

509

init-y := init/

509

init-y := init/

510

drivers-y := drivers/ sound/ firmware/

510

drivers-y := drivers/ sound/ firmware/

511

net-y := net/

511

net-y := net/

512

libs-y := lib/

512

libs-y := lib/

513

core-y := usr/

513

core-y := usr/

514

endif # KBUILD_EXTMOD

514

endif # KBUILD_EXTMOD

515

516

ifeq ($(dot-config),1)

516

ifeq ($(dot-config),1)

517

# Read in config

517

# Read in config

518

-include include/config/auto.conf

518

-include include/config/auto.conf

519

520

ifeq ($(KBUILD_EXTMOD),)

520

ifeq ($(KBUILD_EXTMOD),)

521

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

521

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

522

# oldconfig if changes are detected.

522

# oldconfig if changes are detected.

523

-include include/config/auto.conf.cmd

523

-include include/config/auto.conf.cmd

524

525

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

525

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

526

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

526

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

527

528

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

528

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

529

# with it and forgot to run make oldconfig.

529

# with it and forgot to run make oldconfig.

530

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

530

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

531

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

531

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

532

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

532

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

533

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

533

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

534

else

534

else

535

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

535

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

536

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

536

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

537

PHONY += include/config/auto.conf

537

PHONY += include/config/auto.conf

538

539

include/config/auto.conf:

539

include/config/auto.conf:

540

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

540

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

541

echo; \

541

echo; \

542

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

542

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

543

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

543

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

544

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

544

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

545

echo; \

545

echo; \

546

/bin/false)

546

/bin/false)

547

548

endif # KBUILD_EXTMOD

548

endif # KBUILD_EXTMOD

549

550

else

550

else

551

# Dummy target needed, because used as prerequisite

551

# Dummy target needed, because used as prerequisite

552

include/config/auto.conf: ;

552

include/config/auto.conf: ;

553

endif # $(dot-config)

553

endif # $(dot-config)

554

555

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

555

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

556

# command line.

556

# command line.

557

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

557

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

558

# Defaults to vmlinux, but the arch makefile usually adds further targets

558

# Defaults to vmlinux, but the arch makefile usually adds further targets

559

all: vmlinux

559

all: vmlinux

560

561

ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE

561

ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE

562

KBUILD_CFLAGS += -Os

562

KBUILD_CFLAGS += -Os

563

else

563

else

564

KBUILD_CFLAGS += -O2

564

KBUILD_CFLAGS += -O2

565

endif

565

endif

566

567

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

567

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

568

569

ifneq ($(CONFIG_FRAME_WARN),0)

569

ifneq ($(CONFIG_FRAME_WARN),0)

570

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

570

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

571

endif

571

endif

572

573

# Force gcc to behave correct even for buggy distributions

573

# Force gcc to behave correct even for buggy distributions

574

ifndef CONFIG_CC_STACKPROTECTOR

574

ifndef CONFIG_CC_STACKPROTECTOR

575

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

575

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

576

endif

576

endif

577

578

# This warning generated too much noise in a regular build.

578

# This warning generated too much noise in a regular build.

579

# Use make W=1 to enable this warning (see scripts/Makefile.build)

579

# Use make W=1 to enable this warning (see scripts/Makefile.build)

580

KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)

580

KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)

581

582

ifdef CONFIG_FRAME_POINTER

582

ifdef CONFIG_FRAME_POINTER

583

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

583

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

584

else

584

else

585

# Some targets (ARM with Thumb2, for example), can't be built with frame

585

# Some targets (ARM with Thumb2, for example), can't be built with frame

586

# pointers. For those, we don't have FUNCTION_TRACER automatically

586

# pointers. For those, we don't have FUNCTION_TRACER automatically

587

# select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is

587

# select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is

588

# incompatible with -fomit-frame-pointer with current GCC, so we don't use

588

# incompatible with -fomit-frame-pointer with current GCC, so we don't use

589

# -fomit-frame-pointer with FUNCTION_TRACER.

589

# -fomit-frame-pointer with FUNCTION_TRACER.

590

ifndef CONFIG_FUNCTION_TRACER

590

ifndef CONFIG_FUNCTION_TRACER

591

KBUILD_CFLAGS += -fomit-frame-pointer

591

KBUILD_CFLAGS += -fomit-frame-pointer

592

endif

592

endif

593

endif

593

endif

594

595

ifdef CONFIG_DEBUG_INFO

595

ifdef CONFIG_DEBUG_INFO

596

KBUILD_CFLAGS += -g

596

KBUILD_CFLAGS += -g

597

KBUILD_AFLAGS += -gdwarf-2

597

KBUILD_AFLAGS += -gdwarf-2

598

endif

598

endif

599

600

ifdef CONFIG_DEBUG_INFO_REDUCED

600

ifdef CONFIG_DEBUG_INFO_REDUCED

601

KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly)

601

KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly)

602

endif

602

endif

603

604

ifdef CONFIG_FUNCTION_TRACER

604

ifdef CONFIG_FUNCTION_TRACER

605

KBUILD_CFLAGS += -pg

605

KBUILD_CFLAGS += -pg

606

ifdef CONFIG_DYNAMIC_FTRACE

606

ifdef CONFIG_DYNAMIC_FTRACE

607

ifdef CONFIG_HAVE_C_RECORDMCOUNT

607

ifdef CONFIG_HAVE_C_RECORDMCOUNT

608

BUILD_C_RECORDMCOUNT := y

608

BUILD_C_RECORDMCOUNT := y

609

export BUILD_C_RECORDMCOUNT

609

export BUILD_C_RECORDMCOUNT

610

endif

610

endif

611

endif

611

endif

612

endif

612

endif

613

614

# We trigger additional mismatches with less inlining

614

# We trigger additional mismatches with less inlining

615

ifdef CONFIG_DEBUG_SECTION_MISMATCH

615

ifdef CONFIG_DEBUG_SECTION_MISMATCH

616

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

616

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

617

endif

617

endif

618

619

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

619

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

620

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

620

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

621

CHECKFLAGS += $(NOSTDINC_FLAGS)

621

CHECKFLAGS += $(NOSTDINC_FLAGS)

622

623

# warn about C99 declaration after statement

623

# warn about C99 declaration after statement

624

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

624

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

625

626

# disable pointer signed / unsigned warnings in gcc 4.0

626

# disable pointer signed / unsigned warnings in gcc 4.0

627

KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)

627

KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)

628

629

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

629

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

630

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

630

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

631

632

# conserve stack if available

632

# conserve stack if available

633

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

633

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

634

635

# use the deterministic mode of AR if available

635

# use the deterministic mode of AR if available

636

KBUILD_ARFLAGS := $(call ar-option,D)

636

KBUILD_ARFLAGS := $(call ar-option,D)

637

638

# check for 'asm goto'

638

# check for 'asm goto'

639

ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y)

639

ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y)

640

KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO

640

KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO

641

endif

641

endif

642

643

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

643

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

644

# But warn user when we do so

644

# But warn user when we do so

645

warn-assign = \

645

warn-assign = \

646

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

646

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

647

648

ifneq ($(KCPPFLAGS),)

648

ifneq ($(KCPPFLAGS),)

649

$(call warn-assign,CPPFLAGS)

649

$(call warn-assign,CPPFLAGS)

650

KBUILD_CPPFLAGS += $(KCPPFLAGS)

650

KBUILD_CPPFLAGS += $(KCPPFLAGS)

651

endif

651

endif

652

ifneq ($(KAFLAGS),)

652

ifneq ($(KAFLAGS),)

653

$(call warn-assign,AFLAGS)

653

$(call warn-assign,AFLAGS)

654

KBUILD_AFLAGS += $(KAFLAGS)

654

KBUILD_AFLAGS += $(KAFLAGS)

655

endif

655

endif

656

ifneq ($(KCFLAGS),)

656

ifneq ($(KCFLAGS),)

657

$(call warn-assign,CFLAGS)

657

$(call warn-assign,CFLAGS)

658

KBUILD_CFLAGS += $(KCFLAGS)

658

KBUILD_CFLAGS += $(KCFLAGS)

659

endif

659

endif

660

661

# Use --build-id when available.

661

# Use --build-id when available.

662

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

662

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

663

$(call cc-ldoption, -Wl$(comma)--build-id,))

663

$(call cc-ldoption, -Wl$(comma)--build-id,))

664

KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)

664

KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)

665

LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)

665

LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)

666

667

ifeq ($(CONFIG_STRIP_ASM_SYMS),y)

667

ifeq ($(CONFIG_STRIP_ASM_SYMS),y)

668

LDFLAGS_vmlinux += $(call ld-option, -X,)

668

LDFLAGS_vmlinux += $(call ld-option, -X,)

669

endif

669

endif

670

671

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

671

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

672

# KBUILD_IMAGE may be overruled on the command line or

672

# KBUILD_IMAGE may be overruled on the command line or

673

# set in the environment

673

# set in the environment

674

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

674

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

675

# this default value

675

# this default value

676

export KBUILD_IMAGE ?= vmlinux

676

export KBUILD_IMAGE ?= vmlinux

677

678

#

678

#

679

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

679

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

680

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

680

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

681

export INSTALL_PATH ?= /boot

681

export INSTALL_PATH ?= /boot

682

683

#

683

#

684

# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory

684

# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory

685

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

685

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

686

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

686

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

687

#

687

#

688

689

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

689

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

690

export MODLIB

690

export MODLIB

691

692

#

692

#

693

# INSTALL_MOD_STRIP, if defined, will cause modules to be

693

# INSTALL_MOD_STRIP, if defined, will cause modules to be

694

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

694

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

695

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

695

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

696

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

696

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

697

698

ifdef INSTALL_MOD_STRIP

698

ifdef INSTALL_MOD_STRIP

699

ifeq ($(INSTALL_MOD_STRIP),1)

699

ifeq ($(INSTALL_MOD_STRIP),1)

700

mod_strip_cmd = $(STRIP) --strip-debug

700

mod_strip_cmd = $(STRIP) --strip-debug

701

else

701

else

702

mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)

702

mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)

703

endif # INSTALL_MOD_STRIP=1

703

endif # INSTALL_MOD_STRIP=1

704

else

704

else

705

mod_strip_cmd = true

705

mod_strip_cmd = true

706

endif # INSTALL_MOD_STRIP

706

endif # INSTALL_MOD_STRIP

707

export mod_strip_cmd

707

export mod_strip_cmd

708

709

710

ifeq ($(KBUILD_EXTMOD),)

710

ifeq ($(KBUILD_EXTMOD),)

711

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

711

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

712

713

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

713

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

714

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

714

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

715

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

715

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

716

717

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

717

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

718

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

718

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

719

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

719

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

720

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

720

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

721

722

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

722

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

723

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

723

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

724

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

724

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

725

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

725

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

726

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

726

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

727

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

727

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

728

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

728

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

729

730

# Build vmlinux

730

# Build vmlinux

731

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

731

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

732

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

732

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

733

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

733

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

734

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

734

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

735

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

735

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

736

#

736

#

737

# vmlinux

737

# vmlinux

738

# ^

738

# ^

739

# |

739

# |

740

# +-< $(vmlinux-init)

740

# +-< $(vmlinux-init)

741

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

741

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

742

# |

742

# |

743

# +--< $(vmlinux-main)

743

# +--< $(vmlinux-main)

744

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

744

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

745

# |

745

# |

746

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

746

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

747

#

747

#

748

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

748

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

749

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

749

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

750

# update vmlinux.

750

# update vmlinux.

751

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

751

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

752

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

752

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

753

# symbols to the kernel.

753

# symbols to the kernel.

754

#

754

#

755

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

755

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

756

757

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

757

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

758

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

758

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

759

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

759

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

760

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

760

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

761

export KBUILD_VMLINUX_OBJS := $(vmlinux-all)

761

export KBUILD_VMLINUX_OBJS := $(vmlinux-all)

762

763

# Rule to link vmlinux - also used during CONFIG_KALLSYMS

763

# Rule to link vmlinux - also used during CONFIG_KALLSYMS

764

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

764

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

765

quiet_cmd_vmlinux__ ?= LD $@

765

quiet_cmd_vmlinux__ ?= LD $@

766

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

766

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

767

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

767

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

768

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

768

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

769

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

769

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

770

771

# Generate new vmlinux version

771

# Generate new vmlinux version

772

quiet_cmd_vmlinux_version = GEN .version

772

quiet_cmd_vmlinux_version = GEN .version

773

cmd_vmlinux_version = set -e; \

773

cmd_vmlinux_version = set -e; \

774

if [ ! -r .version ]; then \

774

if [ ! -r .version ]; then \

775

rm -f .version; \

775

rm -f .version; \

776

echo 1 >.version; \

776

echo 1 >.version; \

777

else \

777

else \

778

mv .version .old_version; \

778

mv .version .old_version; \

779

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

779

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

780

fi; \

780

fi; \

781

$(MAKE) $(build)=init

781

$(MAKE) $(build)=init

782

783

# Generate System.map

783

# Generate System.map

784

quiet_cmd_sysmap = SYSMAP

784

quiet_cmd_sysmap = SYSMAP

785

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

785

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

786

787

# Link of vmlinux

787

# Link of vmlinux

788

# If CONFIG_KALLSYMS is set .version is already updated

788

# If CONFIG_KALLSYMS is set .version is already updated

789

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

789

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

790

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

790

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

791

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

791

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

792

define rule_vmlinux__

792

define rule_vmlinux__

793

:

793

:

794

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

794

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

795

796

$(call cmd,vmlinux__)

796

$(call cmd,vmlinux__)

797

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

797

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

798

799

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

799

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

800

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

800

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

801

$(cmd_sysmap) $@ System.map; \

801

$(cmd_sysmap) $@ System.map; \

802

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

802

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

803

rm -f $@; \

803

rm -f $@; \

804

/bin/false; \

804

/bin/false; \

805

fi;

805

fi;

806

$(verify_kallsyms)

806

$(verify_kallsyms)

807

endef

807

endef

808

809

810

ifdef CONFIG_KALLSYMS

810

ifdef CONFIG_KALLSYMS

811

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

811

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

812

# It's a three stage process:

812

# It's a three stage process:

813

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

813

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

814

# empty

814

# empty

815

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

815

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

816

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

816

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

817

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

817

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

818

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

818

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

819

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

819

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

820

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

820

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

821

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

821

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

822

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

822

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

823

# o If 'make KALLSYMS_EXTRA_PASS=1" was used, do an extra pass using

823

# o If 'make KALLSYMS_EXTRA_PASS=1" was used, do an extra pass using

824

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

824

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

825

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

825

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

826

# maintainers work out what went wrong with kallsyms.

826

# maintainers work out what went wrong with kallsyms.

827

828

last_kallsyms := 2

828

last_kallsyms := 2

829

830

ifdef KALLSYMS_EXTRA_PASS

830

ifdef KALLSYMS_EXTRA_PASS

831

ifneq ($(KALLSYMS_EXTRA_PASS),0)

831

ifneq ($(KALLSYMS_EXTRA_PASS),0)

832

last_kallsyms := 3

832

last_kallsyms := 3

833

endif

833

endif

834

endif

834

endif

835

836

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

836

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

837

838

define verify_kallsyms

838

define verify_kallsyms

839

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

839

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

840

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

840

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

841

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

841

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

842

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

842

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

843

(echo Inconsistent kallsyms data; \

843

(echo Inconsistent kallsyms data; \

844

echo This is a bug - please report about it; \

844

echo This is a bug - please report about it; \

845

echo Try "make KALLSYMS_EXTRA_PASS=1" as a workaround; \

845

echo Try "make KALLSYMS_EXTRA_PASS=1" as a workaround; \

846

rm .tmp_kallsyms* ; /bin/false )

846

rm .tmp_kallsyms* ; /bin/false )

847

endef

847

endef

848

849

# Update vmlinux version before link

849

# Update vmlinux version before link

850

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

850

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

851

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

851

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

852

cmd_ksym_ld = $(cmd_vmlinux__)

852

cmd_ksym_ld = $(cmd_vmlinux__)

853

define rule_ksym_ld

853

define rule_ksym_ld

854

:

854

:

855

+$(call cmd,vmlinux_version)

855

+$(call cmd,vmlinux_version)

856

$(call cmd,vmlinux__)

856

$(call cmd,vmlinux__)

857

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

857

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

858

endef

858

endef

859

860

# Generate .S file with all kernel symbols

860

# Generate .S file with all kernel symbols

861

quiet_cmd_kallsyms = KSYM $@

861

quiet_cmd_kallsyms = KSYM $@

862

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

862

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

863

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

863

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

864

865

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

865

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

866

$(call if_changed_dep,as_o_S)

866

$(call if_changed_dep,as_o_S)

867

868

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

868

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

869

$(call cmd,kallsyms)

869

$(call cmd,kallsyms)

870

871

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

871

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

872

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

872

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

873

$(call if_changed_rule,ksym_ld)

873

$(call if_changed_rule,ksym_ld)

874

875

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

875

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

876

$(call if_changed,vmlinux__)

876

$(call if_changed,vmlinux__)

877

878

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

878

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

879

$(call if_changed,vmlinux__)

879

$(call if_changed,vmlinux__)

880

881

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

881

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

882

$(KALLSYMS): scripts ;

882

$(KALLSYMS): scripts ;

883

884

# Generate some data for debugging strange kallsyms problems

884

# Generate some data for debugging strange kallsyms problems

885

debug_kallsyms: .tmp_map$(last_kallsyms)

885

debug_kallsyms: .tmp_map$(last_kallsyms)

886

887

.tmp_map%: .tmp_vmlinux% FORCE

887

.tmp_map%: .tmp_vmlinux% FORCE

888

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

888

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

889

890

.tmp_map3: .tmp_map2

890

.tmp_map3: .tmp_map2

891

892

.tmp_map2: .tmp_map1

892

.tmp_map2: .tmp_map1

893

894

endif # ifdef CONFIG_KALLSYMS

894

endif # ifdef CONFIG_KALLSYMS

895

896

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

896

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

897

# relevant sections renamed as per the linker script.

897

# relevant sections renamed as per the linker script.

898

quiet_cmd_vmlinux-modpost = LD $@

898

quiet_cmd_vmlinux-modpost = LD $@

899

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

899

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

900

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

900

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

901

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

901

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

902

define rule_vmlinux-modpost

902

define rule_vmlinux-modpost

903

:

903

:

904

+$(call cmd,vmlinux-modpost)

904

+$(call cmd,vmlinux-modpost)

905

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

905

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

906

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

906

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

907

endef

907

endef

908

909

# vmlinux image - including updated kernel symbols

909

# vmlinux image - including updated kernel symbols

910

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

910

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

911

ifdef CONFIG_HEADERS_CHECK

911

ifdef CONFIG_HEADERS_CHECK

912

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

912

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

913

endif

913

endif

914

ifdef CONFIG_SAMPLES

914

ifdef CONFIG_SAMPLES

915

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

915

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

916

endif

916

endif

917

ifdef CONFIG_BUILD_DOCSRC

917

ifdef CONFIG_BUILD_DOCSRC

918

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

918

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

919

endif

919

endif

920

$(call vmlinux-modpost)

920

$(call vmlinux-modpost)

921

$(call if_changed_rule,vmlinux__)

921

$(call if_changed_rule,vmlinux__)

922

$(Q)rm -f .old_version

922

$(Q)rm -f .old_version

923

924

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

924

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

925

ifdef CONFIG_KALLSYMS

925

ifdef CONFIG_KALLSYMS

926

.tmp_vmlinux1: vmlinux.o

926

.tmp_vmlinux1: vmlinux.o

927

endif

927

endif

928

929

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

929

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

930

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

930

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

931

$(call if_changed_rule,vmlinux-modpost)

931

$(call if_changed_rule,vmlinux-modpost)

932

933

# The actual objects are generated when descending,

933

# The actual objects are generated when descending,

934

# make sure no implicit rule kicks in

934

# make sure no implicit rule kicks in

935

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

935

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

936

937

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

937

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

938

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

938

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

939

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

939

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

940

# make menuconfig etc.

940

# make menuconfig etc.

941

# Error messages still appears in the original language

941

# Error messages still appears in the original language

942

943

PHONY += $(vmlinux-dirs)

943

PHONY += $(vmlinux-dirs)

944

$(vmlinux-dirs): prepare scripts

944

$(vmlinux-dirs): prepare scripts

945

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

945

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

946

947

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

947

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

948

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

948

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

949

$(Q)rm -f $@

949

$(Q)rm -f $@

950

$(Q)echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" > $@

950

$(Q)echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" > $@

951

952

953

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

953

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

954

# or the modules are listed in "prepare".

954

# or the modules are listed in "prepare".

955

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

955

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

956

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

956

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

957

# version.h and scripts_basic is processed / created.

957

# version.h and scripts_basic is processed / created.

958

959

# Listed in dependency order

959

# Listed in dependency order

960

PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3

960

PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3

961

962

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

962

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

963

# and if so do:

963

# and if so do:

964

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

964

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

965

prepare3: include/config/kernel.release

965

prepare3: include/config/kernel.release

966

ifneq ($(KBUILD_SRC),)

966

ifneq ($(KBUILD_SRC),)

967

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

967

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

968

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

968

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

969

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

969

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

970

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

970

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

971

/bin/false; \

971

/bin/false; \

972

fi;

972

fi;

973

endif

973

endif

974

975

# prepare2 creates a makefile if using a separate output directory

975

# prepare2 creates a makefile if using a separate output directory

976

prepare2: prepare3 outputmakefile asm-generic

976

prepare2: prepare3 outputmakefile asm-generic

977

978

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

978

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

979

include/config/auto.conf

979

include/config/auto.conf

980

$(cmd_crmodverdir)

980

$(cmd_crmodverdir)

981

982

archprepare: prepare1 scripts_basic

982

archprepare: prepare1 scripts_basic

983

984

prepare0: archprepare FORCE

984

prepare0: archprepare FORCE

985

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

985

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

986

987

# All the preparing..

987

# All the preparing..

988

prepare: prepare0

988

prepare: prepare0

989

990

# Generate some files

990

# Generate some files

991

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

991

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

992

993

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

993

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

994

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

994

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

995

996

uts_len := 64

996

uts_len := 64

997

define filechk_utsrelease.h

997

define filechk_utsrelease.h

998

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

998

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

999

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

999

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

1000

exit 1; \

1000

exit 1; \

1001

fi; \

1001

fi; \

1002

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

1002

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

1003

endef

1003

endef

1004

1005

define filechk_version.h

1005

define filechk_version.h

1006

(echo \#define LINUX_VERSION_CODE $(shell \

1006

(echo \#define LINUX_VERSION_CODE $(shell \

1007

expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \

1007

expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \

1008

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

1008

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

1009

endef

1009

endef

1010

1011

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

1011

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

1012

$(call filechk,version.h)

1012

$(call filechk,version.h)

1013

1014

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

1014

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

1015

$(call filechk,utsrelease.h)

1015

$(call filechk,utsrelease.h)

1016

1017

PHONY += headerdep

1017

PHONY += headerdep

1018

headerdep:

1018

headerdep:

1019

$(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \

1019

$(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \

1020

$(srctree)/scripts/headerdep.pl -I$(srctree)/include

1020

$(srctree)/scripts/headerdep.pl -I$(srctree)/include

1021

1022

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

1022

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

1023

1024

PHONY += depend dep

1024

PHONY += depend dep

1025

depend dep:

1025

depend dep:

1026

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

1026

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

1027

1028

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

1028

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

1029

# Firmware install

1029

# Firmware install

1030

INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware

1030

INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware

1031

export INSTALL_FW_PATH

1031

export INSTALL_FW_PATH

1032

1033

PHONY += firmware_install

1033

PHONY += firmware_install

1034

firmware_install: FORCE

1034

firmware_install: FORCE

1035

@mkdir -p $(objtree)/firmware

1035

@mkdir -p $(objtree)/firmware

1036

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

1036

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

1037

1038

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

1038

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

1039

# Kernel headers

1039

# Kernel headers

1040

1041

#Default location for installed headers

1041

#Default location for installed headers

1042

export INSTALL_HDR_PATH = $(objtree)/usr

1042

export INSTALL_HDR_PATH = $(objtree)/usr

1043

1044

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

1044

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

1045

1046

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

1046

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

1047

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

1047

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

1048

1049

PHONY += __headers

1049

PHONY += __headers

1050

__headers: include/linux/version.h scripts_basic asm-generic FORCE

1050

__headers: include/linux/version.h scripts_basic asm-generic FORCE

1051

$(Q)$(MAKE) $(build)=scripts build_unifdef

1051

$(Q)$(MAKE) $(build)=scripts build_unifdef

1052

1053

PHONY += headers_install_all

1053

PHONY += headers_install_all

1054

headers_install_all:

1054

headers_install_all:

1055

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

1055

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

1056

1057

PHONY += headers_install

1057

PHONY += headers_install

1058

headers_install: __headers

1058

headers_install: __headers

1059

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

1059

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

1060

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

1060

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

1061

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

1061

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

1062

$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst)

1062

$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst)

1063

1064

PHONY += headers_check_all

1064

PHONY += headers_check_all

1065

headers_check_all: headers_install_all

1065

headers_check_all: headers_install_all

1066

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

1066

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

1067

1068

PHONY += headers_check

1068

PHONY += headers_check

1069

headers_check: headers_install

1069

headers_check: headers_install

1070

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

1070

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

1071

$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst) HDRCHECK=1

1071

$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst) HDRCHECK=1

1072

1073

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

1073

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

1074

# Modules

1074

# Modules

1075

1076

ifdef CONFIG_MODULES

1076

ifdef CONFIG_MODULES

1077

1078

# By default, build modules as well

1078

# By default, build modules as well

1079

1080

all: modules

1080

all: modules

1081

1082

# Build modules

1082

# Build modules

1083

#

1083

#

1084

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

1084

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

1085

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

1085

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

1086

# using awk while concatenating to the final file.

1086

# using awk while concatenating to the final file.

1087

1088

PHONY += modules

1088

PHONY += modules

1089

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

1089

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

1090

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

1090

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

1091

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

1091

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

1092

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

1092

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

1093

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

1093

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

1094

1095

modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)

1095

modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)

1096

$(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin

1096

$(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin

1097

1098

%/modules.builtin: include/config/auto.conf

1098

%/modules.builtin: include/config/auto.conf

1099

$(Q)$(MAKE) $(modbuiltin)=$*

1099

$(Q)$(MAKE) $(modbuiltin)=$*

1100

1101

1102

# Target to prepare building external modules

1102

# Target to prepare building external modules

1103

PHONY += modules_prepare

1103

PHONY += modules_prepare

1104

modules_prepare: prepare scripts

1104

modules_prepare: prepare scripts

1105

1106

# Target to install modules

1106

# Target to install modules

1107

PHONY += modules_install

1107

PHONY += modules_install

1108

modules_install: _modinst_ _modinst_post

1108

modules_install: _modinst_ _modinst_post

1109

1110

PHONY += _modinst_

1110

PHONY += _modinst_

1111

_modinst_:

1111

_modinst_:

1112

@rm -rf $(MODLIB)/kernel

1112

@rm -rf $(MODLIB)/kernel

1113

@rm -f $(MODLIB)/source

1113

@rm -f $(MODLIB)/source

1114

@mkdir -p $(MODLIB)/kernel

1114

@mkdir -p $(MODLIB)/kernel

1115

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

1115

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

1116

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

1116

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

1117

rm -f $(MODLIB)/build ; \

1117

rm -f $(MODLIB)/build ; \

1118

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

1118

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

1119

fi

1119

fi

1120

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

1120

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

1121

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

1121

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

1122

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

1122

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

1123

1124

# This depmod is only for convenience to give the initial

1124

# This depmod is only for convenience to give the initial

1125

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

1125

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

1126

# boot script depmod is the master version.

1126

# boot script depmod is the master version.

1127

PHONY += _modinst_post

1127

PHONY += _modinst_post

1128

_modinst_post: _modinst_

1128

_modinst_post: _modinst_

1129

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

1129

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

1130

$(call cmd,depmod)

1130

$(call cmd,depmod)

1131

1132

else # CONFIG_MODULES

1132

else # CONFIG_MODULES

1133

1134

# Modules not configured

1134

# Modules not configured

1135

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

1135

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

1136

1137

modules modules_install: FORCE

1137

modules modules_install: FORCE

1138

@echo

1138

@echo

1139

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

1139

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

1140

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

1140

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

1141

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

1141

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

1142

@echo

1142

@echo

1143

@exit 1

1143

@exit 1

1144

1145

endif # CONFIG_MODULES

1145

endif # CONFIG_MODULES

1146

1147

###

1147

###

1148

# Cleaning is done on three levels.

1148

# Cleaning is done on three levels.

1149

# make clean Delete most generated files

1149

# make clean Delete most generated files

1150

# Leave enough to build external modules

1150

# Leave enough to build external modules

1151

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

1151

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

1152

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

1152

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

1153

1154

# Directories & files removed with 'make clean'

1154

# Directories & files removed with 'make clean'

1155

CLEAN_DIRS += $(MODVERDIR)

1155

CLEAN_DIRS += $(MODVERDIR)

1156

CLEAN_FILES += vmlinux System.map \

1156

CLEAN_FILES += vmlinux System.map \

1157

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

1157

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

1158

1159

# Directories & files removed with 'make mrproper'

1159

# Directories & files removed with 'make mrproper'

1160

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

1160

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

1161

arch/*/include/generated

1161

arch/*/include/generated

1162

MRPROPER_FILES += .config .config.old .version .old_version \

1162

MRPROPER_FILES += .config .config.old .version .old_version \

1163

include/linux/version.h \

1163

include/linux/version.h \

1164

Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS

1164

Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS

1165

1166

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

1166

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

1167

#

1167

#

1168

clean: rm-dirs := $(CLEAN_DIRS)

1168

clean: rm-dirs := $(CLEAN_DIRS)

1169

clean: rm-files := $(CLEAN_FILES)

1169

clean: rm-files := $(CLEAN_FILES)

1170

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

1170

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

1171

1172

PHONY += $(clean-dirs) clean archclean

1172

PHONY += $(clean-dirs) clean archclean

1173

$(clean-dirs):

1173

$(clean-dirs):

1174

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

1174

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

1175

1176

clean: archclean

1176

clean: archclean

1177

1178

# mrproper - Delete all generated files, including .config

1178

# mrproper - Delete all generated files, including .config

1179

#

1179

#

1180

mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))

1180

mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))

1181

mrproper: rm-files := $(wildcard $(MRPROPER_FILES))

1181

mrproper: rm-files := $(wildcard $(MRPROPER_FILES))

1182

mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)

1182

mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)

1183

1184

PHONY += $(mrproper-dirs) mrproper archmrproper

1184

PHONY += $(mrproper-dirs) mrproper archmrproper

1185

$(mrproper-dirs):

1185

$(mrproper-dirs):

1186

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

1186

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

1187

1188

mrproper: clean archmrproper $(mrproper-dirs)

1188

mrproper: clean archmrproper $(mrproper-dirs)

1189

$(call cmd,rmdirs)

1189

$(call cmd,rmdirs)

1190

$(call cmd,rmfiles)

1190

$(call cmd,rmfiles)

1191

1192

# distclean

1192

# distclean

1193

#

1193

#

1194

PHONY += distclean

1194

PHONY += distclean

1195

1196

distclean: mrproper

1196

distclean: mrproper

1197

@find $(srctree) $(RCS_FIND_IGNORE) \

1197

@find $(srctree) $(RCS_FIND_IGNORE) \

1198

\( -name '*.orig' -o -name '*.rej' -o -name '*~' \

1198

\( -name '*.orig' -o -name '*.rej' -o -name '*~' \

1199

-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \

1199

-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \

1200

-o -name '.*.rej' \

1200

-o -name '.*.rej' \

1201

-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \

1201

-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \

1202

-type f -print | xargs rm -f

1202

-type f -print | xargs rm -f

1203

1204

1205

# Packaging of the kernel to various formats

1205

# Packaging of the kernel to various formats

1206

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

1206

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

1207

# rpm target kept for backward compatibility

1207

# rpm target kept for backward compatibility

1208

package-dir := $(srctree)/scripts/package

1208

package-dir := $(srctree)/scripts/package

1209

1210

%src-pkg: FORCE

1210

%src-pkg: FORCE

1211

$(Q)$(MAKE) $(build)=$(package-dir) $@

1211

$(Q)$(MAKE) $(build)=$(package-dir) $@

1212

%pkg: include/config/kernel.release FORCE

1212

%pkg: include/config/kernel.release FORCE

1213

$(Q)$(MAKE) $(build)=$(package-dir) $@

1213

$(Q)$(MAKE) $(build)=$(package-dir) $@

1214

rpm: include/config/kernel.release FORCE

1214

rpm: include/config/kernel.release FORCE

1215

$(Q)$(MAKE) $(build)=$(package-dir) $@

1215

$(Q)$(MAKE) $(build)=$(package-dir) $@

1216

1217

1218

# Brief documentation of the typical targets used

1218

# Brief documentation of the typical targets used

1219

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

1219

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

1220

1221

boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)

1221

boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)

1222

boards := $(notdir $(boards))

1222

boards := $(notdir $(boards))

1223

board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))

1223

board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))

1224

board-dirs := $(sort $(notdir $(board-dirs:/=)))

1224

board-dirs := $(sort $(notdir $(board-dirs:/=)))

1225

1226

help:

1226

help:

1227

@echo 'Cleaning targets:'

1227

@echo 'Cleaning targets:'

1228

@echo ' clean - Remove most generated files but keep the config and'

1228

@echo ' clean - Remove most generated files but keep the config and'

1229

@echo ' enough build support to build external modules'

1229

@echo ' enough build support to build external modules'

1230

@echo ' mrproper - Remove all generated files + config + various backup files'

1230

@echo ' mrproper - Remove all generated files + config + various backup files'

1231

@echo ' distclean - mrproper + remove editor backup and patch files'

1231

@echo ' distclean - mrproper + remove editor backup and patch files'

1232

@echo ''

1232

@echo ''

1233

@echo 'Configuration targets:'

1233

@echo 'Configuration targets:'

1234

@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help

1234

@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help

1235

@echo ''

1235

@echo ''

1236

@echo 'Other generic targets:'

1236

@echo 'Other generic targets:'

1237

@echo ' all - Build all targets marked with [*]'

1237

@echo ' all - Build all targets marked with [*]'

1238

@echo '* vmlinux - Build the bare kernel'

1238

@echo '* vmlinux - Build the bare kernel'

1239

@echo '* modules - Build all modules'

1239

@echo '* modules - Build all modules'

1240

@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'

1240

@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'

1241

@echo ' firmware_install- Install all firmware to INSTALL_FW_PATH'

1241

@echo ' firmware_install- Install all firmware to INSTALL_FW_PATH'

1242

@echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'

1242

@echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'

1243

@echo ' dir/ - Build all files in dir and below'

1243

@echo ' dir/ - Build all files in dir and below'

1244

@echo ' dir/file.[oisS] - Build specified target only'

1244

@echo ' dir/file.[oisS] - Build specified target only'

1245

@echo ' dir/file.lst - Build specified mixed source/assembly target only'

1245

@echo ' dir/file.lst - Build specified mixed source/assembly target only'

1246

@echo ' (requires a recent binutils and recent build (System.map))'

1246

@echo ' (requires a recent binutils and recent build (System.map))'

1247

@echo ' dir/file.ko - Build module including final link'

1247

@echo ' dir/file.ko - Build module including final link'

1248

@echo ' modules_prepare - Set up for building external modules'

1248

@echo ' modules_prepare - Set up for building external modules'

1249

@echo ' tags/TAGS - Generate tags file for editors'

1249

@echo ' tags/TAGS - Generate tags file for editors'

1250

@echo ' cscope - Generate cscope index'

1250

@echo ' cscope - Generate cscope index'

1251

@echo ' gtags - Generate GNU GLOBAL index'

1251

@echo ' gtags - Generate GNU GLOBAL index'

1252

@echo ' kernelrelease - Output the release version string'

1252

@echo ' kernelrelease - Output the release version string'

1253

@echo ' kernelversion - Output the version stored in Makefile'

1253

@echo ' kernelversion - Output the version stored in Makefile'

1254

@echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \

1254

@echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \

1255

echo ' (default: $(INSTALL_HDR_PATH))'; \

1255

echo ' (default: $(INSTALL_HDR_PATH))'; \

1256

echo ''

1256

echo ''

1257

@echo 'Static analysers'

1257

@echo 'Static analysers'

1258

@echo ' checkstack - Generate a list of stack hogs'

1258

@echo ' checkstack - Generate a list of stack hogs'

1259

@echo ' namespacecheck - Name space analysis on compiled kernel'

1259

@echo ' namespacecheck - Name space analysis on compiled kernel'

1260

@echo ' versioncheck - Sanity check on version.h usage'

1260

@echo ' versioncheck - Sanity check on version.h usage'

1261

@echo ' includecheck - Check for duplicate included header files'

1261

@echo ' includecheck - Check for duplicate included header files'

1262

@echo ' export_report - List the usages of all exported symbols'

1262

@echo ' export_report - List the usages of all exported symbols'

1263

@echo ' headers_check - Sanity check on exported headers'

1263

@echo ' headers_check - Sanity check on exported headers'

1264

@echo ' headerdep - Detect inclusion cycles in headers'

1264

@echo ' headerdep - Detect inclusion cycles in headers'

1265

@$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help

1265

@$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help

1266

@echo ''

1266

@echo ''

1267

@echo 'Kernel packaging:'

1267

@echo 'Kernel packaging:'

1268

@$(MAKE) $(build)=$(package-dir) help

1268

@$(MAKE) $(build)=$(package-dir) help

1269

@echo ''

1269

@echo ''

1270

@echo 'Documentation targets:'

1270

@echo 'Documentation targets:'

1271

@$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp

1271

@$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp

1272

@echo ''

1272

@echo ''

1273

@echo 'Architecture specific targets ($(SRCARCH)):'

1273

@echo 'Architecture specific targets ($(SRCARCH)):'

1274

@$(if $(archhelp),$(archhelp),\

1274

@$(if $(archhelp),$(archhelp),\

1275

echo ' No architecture specific help defined for $(SRCARCH)')

1275

echo ' No architecture specific help defined for $(SRCARCH)')

1276

@echo ''

1276

@echo ''

1277

@$(if $(boards), \

1277

@$(if $(boards), \

1278

$(foreach b, $(boards), \

1278

$(foreach b, $(boards), \

1279

printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \

1279

printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \

1280

echo '')

1280

echo '')

1281

@$(if $(board-dirs), \

1281

@$(if $(board-dirs), \

1282

$(foreach b, $(board-dirs), \

1282

$(foreach b, $(board-dirs), \

1283

printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \

1283

printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \

1284

printf " %-16s - Show all of the above\\n" help-boards; \

1284

printf " %-16s - Show all of the above\\n" help-boards; \

1285

echo '')

1285

echo '')

1286

1287

@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'

1287

@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'

1288

@echo ' make V=2 [targets] 2 => give reason for rebuild of target'

1288

@echo ' make V=2 [targets] 2 => give reason for rebuild of target'

1289

@echo ' make O=dir [targets] Locate all output files in "dir", including .config'

1289

@echo ' make O=dir [targets] Locate all output files in "dir", including .config'

1290

@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'

1290

@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'

1291

@echo ' make C=2 [targets] Force check of all c source with $$CHECK'

1291

@echo ' make C=2 [targets] Force check of all c source with $$CHECK'

1292

@echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'

1292

@echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'

1293

@echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'

1293

@echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'

1294

@echo ' 1: warnings which may be relevant and do not occur too often'

1294

@echo ' 1: warnings which may be relevant and do not occur too often'

1295

@echo ' 2: warnings which occur quite often but may still be relevant'

1295

@echo ' 2: warnings which occur quite often but may still be relevant'

1296

@echo ' 3: more obscure warnings, can most likely be ignored'

1296

@echo ' 3: more obscure warnings, can most likely be ignored'

1297

@echo ' Multiple levels can be combined with W=12 or W=123'

1297

@echo ' Multiple levels can be combined with W=12 or W=123'

1298

@echo ''

1298

@echo ''

1299

@echo 'Execute "make" or "make all" to build all targets marked with [*] '

1299

@echo 'Execute "make" or "make all" to build all targets marked with [*] '

1300

@echo 'For further info see the ./README file'

1300

@echo 'For further info see the ./README file'

1301

1302

1303

help-board-dirs := $(addprefix help-,$(board-dirs))

1303

help-board-dirs := $(addprefix help-,$(board-dirs))

1304

1305

help-boards: $(help-board-dirs)

1305

help-boards: $(help-board-dirs)

1306

1307

boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))

1307

boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))

1308

1309

$(help-board-dirs): help-%:

1309

$(help-board-dirs): help-%:

1310

@echo 'Architecture specific targets ($(SRCARCH) $*):'

1310

@echo 'Architecture specific targets ($(SRCARCH) $*):'

1311

@$(if $(boards-per-dir), \

1311

@$(if $(boards-per-dir), \

1312

$(foreach b, $(boards-per-dir), \

1312

$(foreach b, $(boards-per-dir), \

1313

printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \

1313

printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \

1314

echo '')

1314

echo '')

1315

1316

1317

# Documentation targets

1317

# Documentation targets

1318

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

1318

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

1319

%docs: scripts_basic FORCE

1319

%docs: scripts_basic FORCE

1320

$(Q)$(MAKE) $(build)=scripts build_docproc

1320

$(Q)$(MAKE) $(build)=scripts build_docproc

1321

$(Q)$(MAKE) $(build)=Documentation/DocBook $@

1321

$(Q)$(MAKE) $(build)=Documentation/DocBook $@

1322

1323

else # KBUILD_EXTMOD

1323

else # KBUILD_EXTMOD

1324

1325

###

1325

###

1326

# External module support.

1326

# External module support.

1327

# When building external modules the kernel used as basis is considered

1327

# When building external modules the kernel used as basis is considered

1328

# read-only, and no consistency checks are made and the make

1328

# read-only, and no consistency checks are made and the make

1329

# system is not used on the basis kernel. If updates are required

1329

# system is not used on the basis kernel. If updates are required

1330

# in the basis kernel ordinary make commands (without M=...) must

1330

# in the basis kernel ordinary make commands (without M=...) must

1331

# be used.

1331

# be used.

1332

#

1332

#

1333

# The following are the only valid targets when building external

1333

# The following are the only valid targets when building external

1334

# modules.

1334

# modules.

1335

# make M=dir clean Delete all automatically generated files

1335

# make M=dir clean Delete all automatically generated files

1336

# make M=dir modules Make all modules in specified dir

1336

# make M=dir modules Make all modules in specified dir

1337

# make M=dir Same as 'make M=dir modules'

1337

# make M=dir Same as 'make M=dir modules'

1338

# make M=dir modules_install

1338

# make M=dir modules_install

1339

# Install the modules built in the module directory

1339

# Install the modules built in the module directory

1340

# Assumes install directory is already created

1340

# Assumes install directory is already created

1341

1342

# We are always building modules

1342

# We are always building modules

1343

KBUILD_MODULES := 1

1343

KBUILD_MODULES := 1

1344

PHONY += crmodverdir

1344

PHONY += crmodverdir

1345

crmodverdir:

1345

crmodverdir:

1346

$(cmd_crmodverdir)

1346

$(cmd_crmodverdir)

1347

1348

PHONY += $(objtree)/Module.symvers

1348

PHONY += $(objtree)/Module.symvers

1349

$(objtree)/Module.symvers:

1349

$(objtree)/Module.symvers:

1350

@test -e $(objtree)/Module.symvers || ( \

1350

@test -e $(objtree)/Module.symvers || ( \

1351

echo; \

1351

echo; \

1352

echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \

1352

echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \

1353

echo " is missing; modules will have no dependencies and modversions."; \

1353

echo " is missing; modules will have no dependencies and modversions."; \

1354

echo )

1354

echo )

1355

1356

module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))

1356

module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))

1357

PHONY += $(module-dirs) modules

1357

PHONY += $(module-dirs) modules

1358

$(module-dirs): crmodverdir $(objtree)/Module.symvers

1358

$(module-dirs): crmodverdir $(objtree)/Module.symvers

1359

$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)

1359

$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)

1360

1361

modules: $(module-dirs)

1361

modules: $(module-dirs)

1362

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

1362

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

1363

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

1363

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

1364

1365

PHONY += modules_install

1365

PHONY += modules_install

1366

modules_install: _emodinst_ _emodinst_post

1366

modules_install: _emodinst_ _emodinst_post

1367

1368

install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)

1368

install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)

1369

PHONY += _emodinst_

1369

PHONY += _emodinst_

1370

_emodinst_:

1370

_emodinst_:

1371

$(Q)mkdir -p $(MODLIB)/$(install-dir)

1371

$(Q)mkdir -p $(MODLIB)/$(install-dir)

1372

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

1372

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

1373

1374

PHONY += _emodinst_post

1374

PHONY += _emodinst_post

1375

_emodinst_post: _emodinst_

1375

_emodinst_post: _emodinst_

1376

$(call cmd,depmod)

1376

$(call cmd,depmod)

1377

1378

clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))

1378

clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))

1379

1380

PHONY += $(clean-dirs) clean

1380

PHONY += $(clean-dirs) clean

1381

$(clean-dirs):

1381

$(clean-dirs):

1382

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

1382

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

1383

1384

clean: rm-dirs := $(MODVERDIR)

1384

clean: rm-dirs := $(MODVERDIR)

1385

clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers

1385

clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers

1386

1387

help:

1387

help:

1388

@echo ' Building external modules.'

1388

@echo ' Building external modules.'

1389

@echo ' Syntax: make -C path/to/kernel/src M=$$PWD target'

1389

@echo ' Syntax: make -C path/to/kernel/src M=$$PWD target'

1390

@echo ''

1390

@echo ''

1391

@echo ' modules - default target, build the module(s)'

1391

@echo ' modules - default target, build the module(s)'

1392

@echo ' modules_install - install the module'

1392

@echo ' modules_install - install the module'

1393

@echo ' clean - remove generated files in module directory only'

1393

@echo ' clean - remove generated files in module directory only'

1394

@echo ''

1394

@echo ''

1395

1396

# Dummies...

1396

# Dummies...

1397

PHONY += prepare scripts

1397

PHONY += prepare scripts

1398

prepare: ;

1398

prepare: ;

1399

scripts: ;

1399

scripts: ;

1400

endif # KBUILD_EXTMOD

1400

endif # KBUILD_EXTMOD

1401

1402

clean: $(clean-dirs)

1402

clean: $(clean-dirs)

1403

$(call cmd,rmdirs)

1403

$(call cmd,rmdirs)

1404

$(call cmd,rmfiles)

1404

$(call cmd,rmfiles)

1405

@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \

1405

@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \

1406

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

1406

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

1407

-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \

1407

-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \

1408

-o -name '*.symtypes' -o -name 'modules.order' \

1408

-o -name '*.symtypes' -o -name 'modules.order' \

1409

-o -name modules.builtin -o -name '.tmp_*.o.*' \

1409

-o -name modules.builtin -o -name '.tmp_*.o.*' \

1410

-o -name '*.gcno' \) -type f -print | xargs rm -f

1410

-o -name '*.gcno' \) -type f -print | xargs rm -f

1411

1412

# Generate tags for editors

1412

# Generate tags for editors

1413

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

1413

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

1414

quiet_cmd_tags = GEN $@

1414

quiet_cmd_tags = GEN $@

1415

cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@

1415

cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@

1416

1417

tags TAGS cscope gtags: FORCE

1417

tags TAGS cscope gtags: FORCE

1418

$(call cmd,tags)

1418

$(call cmd,tags)

1419

1420

# Scripts to check various things for consistency

1420

# Scripts to check various things for consistency

1421

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

1421

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

1422

1423

PHONY += includecheck versioncheck coccicheck namespacecheck export_report

1423

PHONY += includecheck versioncheck coccicheck namespacecheck export_report

1424

1425

includecheck:

1425

includecheck:

1426

find $(srctree)/* $(RCS_FIND_IGNORE) \

1426

find $(srctree)/* $(RCS_FIND_IGNORE) \

1427

-name '*.[hcS]' -type f -print | sort \

1427

-name '*.[hcS]' -type f -print | sort \

1428

| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl

1428

| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl

1429

1430

versioncheck:

1430

versioncheck:

1431

find $(srctree)/* $(RCS_FIND_IGNORE) \

1431

find $(srctree)/* $(RCS_FIND_IGNORE) \

1432

-name '*.[hcS]' -type f -print | sort \

1432

-name '*.[hcS]' -type f -print | sort \

1433

| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl

1433

| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl

1434

1435

coccicheck:

1435

coccicheck:

1436

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@

1436

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@

1437

1438

namespacecheck:

1438

namespacecheck:

1439

$(PERL) $(srctree)/scripts/namespace.pl

1439

$(PERL) $(srctree)/scripts/namespace.pl

1440

1441

export_report:

1441

export_report:

1442

$(PERL) $(srctree)/scripts/export_report.pl

1442

$(PERL) $(srctree)/scripts/export_report.pl

1443

1444

endif #ifeq ($(config-targets),1)

1444

endif #ifeq ($(config-targets),1)

1445

endif #ifeq ($(mixed-targets),1)

1445

endif #ifeq ($(mixed-targets),1)

1446

1447

PHONY += checkstack kernelrelease kernelversion

1447

PHONY += checkstack kernelrelease kernelversion

1448

1449

# UML needs a little special treatment here. It wants to use the host

1449

# UML needs a little special treatment here. It wants to use the host

1450

# toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone

1450

# toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone

1451

# else wants $(ARCH), including people doing cross-builds, which means

1451

# else wants $(ARCH), including people doing cross-builds, which means

1452

# that $(SUBARCH) doesn't work here.

1452

# that $(SUBARCH) doesn't work here.

1453

ifeq ($(ARCH), um)

1453

ifeq ($(ARCH), um)

1454

CHECKSTACK_ARCH := $(SUBARCH)

1454

CHECKSTACK_ARCH := $(SUBARCH)

1455

else

1455

else

1456

CHECKSTACK_ARCH := $(ARCH)

1456

CHECKSTACK_ARCH := $(ARCH)

1457

endif

1457

endif

1458

checkstack:

1458

checkstack:

1459

$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \

1459

$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \

1460

$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)

1460

$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)

1461

1462

kernelrelease:

1462

kernelrelease:

1463

@echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"

1463

@echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"

1464

1465

kernelversion:

1465

kernelversion:

1466

@echo $(KERNELVERSION)

1466

@echo $(KERNELVERSION)

1467

1468

# Single targets

1468

# Single targets

1469

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

1469

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

1470

# Single targets are compatible with:

1470

# Single targets are compatible with:

1471

# - build with mixed source and output

1471

# - build with mixed source and output

1472

# - build with separate output dir 'make O=...'

1472

# - build with separate output dir 'make O=...'

1473

# - external modules

1473

# - external modules

1474

#

1474

#

1475

# target-dir => where to store outputfile

1475

# target-dir => where to store outputfile

1476

# build-dir => directory in kernel source tree to use

1476

# build-dir => directory in kernel source tree to use

1477

1478

ifeq ($(KBUILD_EXTMOD),)

1478

ifeq ($(KBUILD_EXTMOD),)

1479

build-dir = $(patsubst %/,%,$(dir $@))

1479

build-dir = $(patsubst %/,%,$(dir $@))

1480

target-dir = $(dir $@)

1480

target-dir = $(dir $@)

1481

else

1481

else

1482

zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))

1482

zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))

1483

build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))

1483

build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))

1484

target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))

1484

target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))

1485

endif

1485

endif

1486

1487

%.s: %.c prepare scripts FORCE

1487

%.s: %.c prepare scripts FORCE

1488