Eric Lee / smarc-ti-linux-kernel

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VERSION = 3

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VERSION = 3

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PATCHLEVEL = 14

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PATCHLEVEL = 14

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SUBLEVEL = 32

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SUBLEVEL = 33

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EXTRAVERSION =

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EXTRAVERSION =

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NAME = Remembering Coco

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NAME = Remembering Coco

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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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# Avoid interference with shell env settings

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# Avoid interference with shell env settings

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unexport GREP_OPTIONS

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unexport GREP_OPTIONS

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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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@:

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@:

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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/x86/ -e s/x86_64/x86/ \

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SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \

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-e s/sun4u/sparc64/ \

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-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/ -e s/aarch64.*/arm64/ )

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-e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )

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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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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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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 ($(filter 4.%,$(MAKE_VERSION)),) # make-4

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ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4

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ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)

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ifneq ($(filter %s ,$(firstword x$(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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else # make-3.8x

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else # make-3.8x

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ifneq ($(filter s% -s%,$(MAKEFLAGS)),)

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ifneq ($(filter s% -s%,$(MAKEFLAGS)),)

320

quiet=silent_

320

quiet=silent_

321

endif

321

endif

322

endif

322

endif

323

324

export quiet Q KBUILD_VERBOSE

324

export quiet Q KBUILD_VERBOSE

325

326

327

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

327

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

328

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

328

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

329

330

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

330

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

331

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

331

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

332

include $(srctree)/scripts/Kbuild.include

332

include $(srctree)/scripts/Kbuild.include

333

334

# Make variables (CC, etc...)

334

# Make variables (CC, etc...)

335

336

AS = $(CROSS_COMPILE)as

336

AS = $(CROSS_COMPILE)as

337

LD = $(CROSS_COMPILE)ld

337

LD = $(CROSS_COMPILE)ld

338

CC = $(CROSS_COMPILE)gcc

338

CC = $(CROSS_COMPILE)gcc

339

CPP = $(CC) -E

339

CPP = $(CC) -E

340

AR = $(CROSS_COMPILE)ar

340

AR = $(CROSS_COMPILE)ar

341

NM = $(CROSS_COMPILE)nm

341

NM = $(CROSS_COMPILE)nm

342

STRIP = $(CROSS_COMPILE)strip

342

STRIP = $(CROSS_COMPILE)strip

343

OBJCOPY = $(CROSS_COMPILE)objcopy

343

OBJCOPY = $(CROSS_COMPILE)objcopy

344

OBJDUMP = $(CROSS_COMPILE)objdump

344

OBJDUMP = $(CROSS_COMPILE)objdump

345

AWK = awk

345

AWK = awk

346

GENKSYMS = scripts/genksyms/genksyms

346

GENKSYMS = scripts/genksyms/genksyms

347

INSTALLKERNEL := installkernel

347

INSTALLKERNEL := installkernel

348

DEPMOD = /sbin/depmod

348

DEPMOD = /sbin/depmod

349

PERL = perl

349

PERL = perl

350

CHECK = sparse

350

CHECK = sparse

351

352

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

352

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

353

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

353

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

354

CFLAGS_MODULE =

354

CFLAGS_MODULE =

355

AFLAGS_MODULE =

355

AFLAGS_MODULE =

356

LDFLAGS_MODULE =

356

LDFLAGS_MODULE =

357

CFLAGS_KERNEL =

357

CFLAGS_KERNEL =

358

AFLAGS_KERNEL =

358

AFLAGS_KERNEL =

359

CFLAGS_GCOV = -fprofile-arcs -ftest-coverage

359

CFLAGS_GCOV = -fprofile-arcs -ftest-coverage

360

361

362

# Use USERINCLUDE when you must reference the UAPI directories only.

362

# Use USERINCLUDE when you must reference the UAPI directories only.

363

USERINCLUDE := \

363

USERINCLUDE := \

364

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

364

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

365

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

365

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

366

-I$(srctree)/include/uapi \

366

-I$(srctree)/include/uapi \

367

-Iinclude/generated/uapi \

367

-Iinclude/generated/uapi \

368

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

368

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

369

370

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

370

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

371

# Needed to be compatible with the O= option

371

# Needed to be compatible with the O= option

372

LINUXINCLUDE := \

372

LINUXINCLUDE := \

373

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

373

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

374

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

374

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

375

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

375

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

376

-Iinclude \

376

-Iinclude \

377

$(USERINCLUDE)

377

$(USERINCLUDE)

378

379

KBUILD_CPPFLAGS := -D__KERNEL__

379

KBUILD_CPPFLAGS := -D__KERNEL__

380

381

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

381

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

382

-fno-strict-aliasing -fno-common \

382

-fno-strict-aliasing -fno-common \

383

-Werror-implicit-function-declaration \

383

-Werror-implicit-function-declaration \

384

-Wno-format-security \

384

-Wno-format-security \

385

-fno-delete-null-pointer-checks

385

-fno-delete-null-pointer-checks

386

KBUILD_AFLAGS_KERNEL :=

386

KBUILD_AFLAGS_KERNEL :=

387

KBUILD_CFLAGS_KERNEL :=

387

KBUILD_CFLAGS_KERNEL :=

388

KBUILD_AFLAGS := -D__ASSEMBLY__

388

KBUILD_AFLAGS := -D__ASSEMBLY__

389

KBUILD_AFLAGS_MODULE := -DMODULE

389

KBUILD_AFLAGS_MODULE := -DMODULE

390

KBUILD_CFLAGS_MODULE := -DMODULE

390

KBUILD_CFLAGS_MODULE := -DMODULE

391

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

391

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

392

393

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

393

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

394

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

394

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

395

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

395

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

396

397

export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION

397

export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION

398

export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC

398

export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC

399

export CPP AR NM STRIP OBJCOPY OBJDUMP

399

export CPP AR NM STRIP OBJCOPY OBJDUMP

400

export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE

400

export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE

401

export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS

401

export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS

402

403

export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS

403

export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS

404

export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV

404

export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV

405

export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE

405

export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE

406

export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE

406

export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE

407

export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL

407

export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL

408

export KBUILD_ARFLAGS

408

export KBUILD_ARFLAGS

409

410

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

410

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

411

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

411

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

412

# even be read-only.

412

# even be read-only.

413

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

413

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

414

415

# Files to ignore in find ... statements

415

# Files to ignore in find ... statements

416

417

RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \

417

RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \

418

-o -name .pc -o -name .hg -o -name .git \) -prune -o

418

-o -name .pc -o -name .hg -o -name .git \) -prune -o

419

export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \

419

export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \

420

--exclude CVS --exclude .pc --exclude .hg --exclude .git

420

--exclude CVS --exclude .pc --exclude .hg --exclude .git

421

422

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

422

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

423

# Rules shared between *config targets and build targets

423

# Rules shared between *config targets and build targets

424

425

# Basic helpers built in scripts/

425

# Basic helpers built in scripts/

426

PHONY += scripts_basic

426

PHONY += scripts_basic

427

scripts_basic:

427

scripts_basic:

428

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

428

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

429

$(Q)rm -f .tmp_quiet_recordmcount

429

$(Q)rm -f .tmp_quiet_recordmcount

430

431

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

431

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

432

scripts/basic/%: scripts_basic ;

432

scripts/basic/%: scripts_basic ;

433

434

PHONY += outputmakefile

434

PHONY += outputmakefile

435

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

435

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

436

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

436

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

437

# output directory.

437

# output directory.

438

outputmakefile:

438

outputmakefile:

439

ifneq ($(KBUILD_SRC),)

439

ifneq ($(KBUILD_SRC),)

440

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

440

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

441

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

441

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

442

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

442

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

443

endif

443

endif

444

445

# Support for using generic headers in asm-generic

445

# Support for using generic headers in asm-generic

446

PHONY += asm-generic

446

PHONY += asm-generic

447

asm-generic:

447

asm-generic:

448

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

448

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

449

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

449

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

450

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

450

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

451

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

451

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

452

453

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

453

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

454

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

454

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

455

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

455

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

456

# mixing *config targets and build targets.

456

# mixing *config targets and build targets.

457

# For example 'make oldconfig all'.

457

# For example 'make oldconfig all'.

458

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

458

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

459

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

459

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

460

461

version_h := include/generated/uapi/linux/version.h

461

version_h := include/generated/uapi/linux/version.h

462

463

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

463

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

464

cscope gtags TAGS tags help %docs check% coccicheck \

464

cscope gtags TAGS tags help %docs check% coccicheck \

465

$(version_h) headers_% archheaders archscripts \

465

$(version_h) headers_% archheaders archscripts \

466

kernelversion %src-pkg

466

kernelversion %src-pkg

467

468

config-targets := 0

468

config-targets := 0

469

mixed-targets := 0

469

mixed-targets := 0

470

dot-config := 1

470

dot-config := 1

471

472

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

472

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

473

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

473

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

474

dot-config := 0

474

dot-config := 0

475

endif

475

endif

476

endif

476

endif

477

478

ifeq ($(KBUILD_EXTMOD),)

478

ifeq ($(KBUILD_EXTMOD),)

479

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

479

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

480

config-targets := 1

480

config-targets := 1

481

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

481

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

482

mixed-targets := 1

482

mixed-targets := 1

483

endif

483

endif

484

endif

484

endif

485

endif

485

endif

486

487

ifeq ($(mixed-targets),1)

487

ifeq ($(mixed-targets),1)

488

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

488

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

489

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

489

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

490

# Handle them one by one.

490

# Handle them one by one.

491

492

%:: FORCE

492

%:: FORCE

493

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

493

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

494

495

else

495

else

496

ifeq ($(config-targets),1)

496

ifeq ($(config-targets),1)

497

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

497

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

498

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

498

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

499

# in scripts/kconfig to make the *config target

499

# in scripts/kconfig to make the *config target

500

501

# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.

501

# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.

502

# KBUILD_DEFCONFIG may point out an alternative default configuration

502

# KBUILD_DEFCONFIG may point out an alternative default configuration

503

# used for 'make defconfig'

503

# used for 'make defconfig'

504

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

504

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

505

export KBUILD_DEFCONFIG KBUILD_KCONFIG

505

export KBUILD_DEFCONFIG KBUILD_KCONFIG

506

507

config: scripts_basic outputmakefile FORCE

507

config: scripts_basic outputmakefile FORCE

508

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

508

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

509

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

509

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

510

511

%config: scripts_basic outputmakefile FORCE

511

%config: scripts_basic outputmakefile FORCE

512

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

512

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

513

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

513

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

514

515

else

515

else

516

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

516

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

517

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

517

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

518

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

518

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

519

520

ifeq ($(KBUILD_EXTMOD),)

520

ifeq ($(KBUILD_EXTMOD),)

521

# Additional helpers built in scripts/

521

# Additional helpers built in scripts/

522

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

522

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

523

# in parallel

523

# in parallel

524

PHONY += scripts

524

PHONY += scripts

525

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

525

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

526

asm-generic

526

asm-generic

527

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

527

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

528

529

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

529

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

530

init-y := init/

530

init-y := init/

531

drivers-y := drivers/ sound/ firmware/

531

drivers-y := drivers/ sound/ firmware/

532

net-y := net/

532

net-y := net/

533

libs-y := lib/

533

libs-y := lib/

534

core-y := usr/

534

core-y := usr/

535

endif # KBUILD_EXTMOD

535

endif # KBUILD_EXTMOD

536

537

ifeq ($(dot-config),1)

537

ifeq ($(dot-config),1)

538

# Read in config

538

# Read in config

539

-include include/config/auto.conf

539

-include include/config/auto.conf

540

541

ifeq ($(KBUILD_EXTMOD),)

541

ifeq ($(KBUILD_EXTMOD),)

542

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

542

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

543

# oldconfig if changes are detected.

543

# oldconfig if changes are detected.

544

-include include/config/auto.conf.cmd

544

-include include/config/auto.conf.cmd

545

546

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

546

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

547

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

547

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

548

549

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

549

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

550

# with it and forgot to run make oldconfig.

550

# with it and forgot to run make oldconfig.

551

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

551

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

552

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

552

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

553

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

553

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

554

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

554

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

555

else

555

else

556

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

556

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

557

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

557

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

558

PHONY += include/config/auto.conf

558

PHONY += include/config/auto.conf

559

560

include/config/auto.conf:

560

include/config/auto.conf:

561

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

561

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

562

echo >&2; \

562

echo >&2; \

563

echo >&2 " ERROR: Kernel configuration is invalid."; \

563

echo >&2 " ERROR: Kernel configuration is invalid."; \

564

echo >&2 " include/generated/autoconf.h or $@ are missing.";\

564

echo >&2 " include/generated/autoconf.h or $@ are missing.";\

565

echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \

565

echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \

566

echo >&2 ; \

566

echo >&2 ; \

567

/bin/false)

567

/bin/false)

568

569

endif # KBUILD_EXTMOD

569

endif # KBUILD_EXTMOD

570

571

else

571

else

572

# Dummy target needed, because used as prerequisite

572

# Dummy target needed, because used as prerequisite

573

include/config/auto.conf: ;

573

include/config/auto.conf: ;

574

endif # $(dot-config)

574

endif # $(dot-config)

575

576

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

576

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

577

# command line.

577

# command line.

578

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

578

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

579

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

579

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

580

all: vmlinux

580

all: vmlinux

581

582

ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE

582

ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE

583

KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)

583

KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)

584

else

584

else

585

KBUILD_CFLAGS += -O2

585

KBUILD_CFLAGS += -O2

586

endif

586

endif

587

588

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

588

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

589

590

ifdef CONFIG_READABLE_ASM

590

ifdef CONFIG_READABLE_ASM

591

# Disable optimizations that make assembler listings hard to read.

591

# Disable optimizations that make assembler listings hard to read.

592

# reorder blocks reorders the control in the function

592

# reorder blocks reorders the control in the function

593

# ipa clone creates specialized cloned functions

593

# ipa clone creates specialized cloned functions

594

# partial inlining inlines only parts of functions

594

# partial inlining inlines only parts of functions

595

KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \

595

KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \

596

$(call cc-option,-fno-ipa-cp-clone,) \

596

$(call cc-option,-fno-ipa-cp-clone,) \

597

$(call cc-option,-fno-partial-inlining)

597

$(call cc-option,-fno-partial-inlining)

598

endif

598

endif

599

600

ifneq ($(CONFIG_FRAME_WARN),0)

600

ifneq ($(CONFIG_FRAME_WARN),0)

601

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

601

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

602

endif

602

endif

603

604

# Handle stack protector mode.

604

# Handle stack protector mode.

605

ifdef CONFIG_CC_STACKPROTECTOR_REGULAR

605

ifdef CONFIG_CC_STACKPROTECTOR_REGULAR

606

stackp-flag := -fstack-protector

606

stackp-flag := -fstack-protector

607

ifeq ($(call cc-option, $(stackp-flag)),)

607

ifeq ($(call cc-option, $(stackp-flag)),)

608

$(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \

608

$(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \

609

-fstack-protector not supported by compiler)

609

-fstack-protector not supported by compiler)

610

endif

610

endif

611

else

611

else

612

ifdef CONFIG_CC_STACKPROTECTOR_STRONG

612

ifdef CONFIG_CC_STACKPROTECTOR_STRONG

613

stackp-flag := -fstack-protector-strong

613

stackp-flag := -fstack-protector-strong

614

ifeq ($(call cc-option, $(stackp-flag)),)

614

ifeq ($(call cc-option, $(stackp-flag)),)

615

$(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \

615

$(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \

616

-fstack-protector-strong not supported by compiler)

616

-fstack-protector-strong not supported by compiler)

617

endif

617

endif

618

else

618

else

619

# Force off for distro compilers that enable stack protector by default.

619

# Force off for distro compilers that enable stack protector by default.

620

stackp-flag := $(call cc-option, -fno-stack-protector)

620

stackp-flag := $(call cc-option, -fno-stack-protector)

621

endif

621

endif

622

endif

622

endif

623

KBUILD_CFLAGS += $(stackp-flag)

623

KBUILD_CFLAGS += $(stackp-flag)

624

625

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

625

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

626

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

626

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

627

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

627

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

628

629

ifdef CONFIG_FRAME_POINTER

629

ifdef CONFIG_FRAME_POINTER

630

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

630

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

631

else

631

else

632

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

632

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

633

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

633

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

634

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

634

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

635

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

635

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

636

# -fomit-frame-pointer with FUNCTION_TRACER.

636

# -fomit-frame-pointer with FUNCTION_TRACER.

637

ifndef CONFIG_FUNCTION_TRACER

637

ifndef CONFIG_FUNCTION_TRACER

638

KBUILD_CFLAGS += -fomit-frame-pointer

638

KBUILD_CFLAGS += -fomit-frame-pointer

639

endif

639

endif

640

endif

640

endif

641

642

KBUILD_CFLAGS += $(call cc-option, -fno-var-tracking-assignments)

642

KBUILD_CFLAGS += $(call cc-option, -fno-var-tracking-assignments)

643

644

ifdef CONFIG_DEBUG_INFO

644

ifdef CONFIG_DEBUG_INFO

645

KBUILD_CFLAGS += -g

645

KBUILD_CFLAGS += -g

646

KBUILD_AFLAGS += -Wa,--gdwarf-2

646

KBUILD_AFLAGS += -Wa,--gdwarf-2

647

endif

647

endif

648

649

ifdef CONFIG_DEBUG_INFO_REDUCED

649

ifdef CONFIG_DEBUG_INFO_REDUCED

650

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

650

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

651

$(call cc-option,-fno-var-tracking)

651

$(call cc-option,-fno-var-tracking)

652

endif

652

endif

653

654

ifdef CONFIG_FUNCTION_TRACER

654

ifdef CONFIG_FUNCTION_TRACER

655

ifdef CONFIG_HAVE_FENTRY

655

ifdef CONFIG_HAVE_FENTRY

656

CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY)

656

CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY)

657

endif

657

endif

658

KBUILD_CFLAGS += -pg $(CC_USING_FENTRY)

658

KBUILD_CFLAGS += -pg $(CC_USING_FENTRY)

659

KBUILD_AFLAGS += $(CC_USING_FENTRY)

659

KBUILD_AFLAGS += $(CC_USING_FENTRY)

660

ifdef CONFIG_DYNAMIC_FTRACE

660

ifdef CONFIG_DYNAMIC_FTRACE

661

ifdef CONFIG_HAVE_C_RECORDMCOUNT

661

ifdef CONFIG_HAVE_C_RECORDMCOUNT

662

BUILD_C_RECORDMCOUNT := y

662

BUILD_C_RECORDMCOUNT := y

663

export BUILD_C_RECORDMCOUNT

663

export BUILD_C_RECORDMCOUNT

664

endif

664

endif

665

endif

665

endif

666

endif

666

endif

667

668

# We trigger additional mismatches with less inlining

668

# We trigger additional mismatches with less inlining

669

ifdef CONFIG_DEBUG_SECTION_MISMATCH

669

ifdef CONFIG_DEBUG_SECTION_MISMATCH

670

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

670

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

671

endif

671

endif

672

673

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

673

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

674

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

674

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

675

CHECKFLAGS += $(NOSTDINC_FLAGS)

675

CHECKFLAGS += $(NOSTDINC_FLAGS)

676

677

# warn about C99 declaration after statement

677

# warn about C99 declaration after statement

678

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

678

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

679

680

# disable pointer signed / unsigned warnings in gcc 4.0

680

# disable pointer signed / unsigned warnings in gcc 4.0

681

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

681

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

682

683

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

683

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

684

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

684

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

685

686

# conserve stack if available

686

# conserve stack if available

687

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

687

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

688

689

# disallow errors like 'EXPORT_GPL(foo);' with missing header

689

# disallow errors like 'EXPORT_GPL(foo);' with missing header

690

KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int)

690

KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int)

691

692

# require functions to have arguments in prototypes, not empty 'int foo()'

692

# require functions to have arguments in prototypes, not empty 'int foo()'

693

KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes)

693

KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes)

694

695

# Prohibit date/time macros, which would make the build non-deterministic

695

# Prohibit date/time macros, which would make the build non-deterministic

696

KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)

696

KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)

697

698

# use the deterministic mode of AR if available

698

# use the deterministic mode of AR if available

699

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

699

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

700

701

# check for 'asm goto'

701

# check for 'asm goto'

702

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

702

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

703

KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO

703

KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO

704

endif

704

endif

705

706

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

706

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

707

KBUILD_CPPFLAGS += $(KCPPFLAGS)

707

KBUILD_CPPFLAGS += $(KCPPFLAGS)

708

KBUILD_AFLAGS += $(KAFLAGS)

708

KBUILD_AFLAGS += $(KAFLAGS)

709

KBUILD_CFLAGS += $(KCFLAGS)

709

KBUILD_CFLAGS += $(KCFLAGS)

710

711

# Use --build-id when available.

711

# Use --build-id when available.

712

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

712

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

713

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

713

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

714

KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)

714

KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)

715

LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)

715

LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)

716

717

ifeq ($(CONFIG_STRIP_ASM_SYMS),y)

717

ifeq ($(CONFIG_STRIP_ASM_SYMS),y)

718

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

718

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

719

endif

719

endif

720

721

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

721

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

722

# KBUILD_IMAGE may be overruled on the command line or

722

# KBUILD_IMAGE may be overruled on the command line or

723

# set in the environment

723

# set in the environment

724

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

724

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

725

# this default value

725

# this default value

726

export KBUILD_IMAGE ?= vmlinux

726

export KBUILD_IMAGE ?= vmlinux

727

728

#

728

#

729

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

729

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

730

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

730

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

731

export INSTALL_PATH ?= /boot

731

export INSTALL_PATH ?= /boot

732

733

#

733

#

734

# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory

734

# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory

735

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

735

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

736

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

736

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

737

#

737

#

738

739

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

739

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

740

export MODLIB

740

export MODLIB

741

742

#

742

#

743

# INSTALL_MOD_STRIP, if defined, will cause modules to be

743

# INSTALL_MOD_STRIP, if defined, will cause modules to be

744

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

744

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

745

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

745

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

746

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

746

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

747

748

ifdef INSTALL_MOD_STRIP

748

ifdef INSTALL_MOD_STRIP

749

ifeq ($(INSTALL_MOD_STRIP),1)

749

ifeq ($(INSTALL_MOD_STRIP),1)

750

mod_strip_cmd = $(STRIP) --strip-debug

750

mod_strip_cmd = $(STRIP) --strip-debug

751

else

751

else

752

mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)

752

mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)

753

endif # INSTALL_MOD_STRIP=1

753

endif # INSTALL_MOD_STRIP=1

754

else

754

else

755

mod_strip_cmd = true

755

mod_strip_cmd = true

756

endif # INSTALL_MOD_STRIP

756

endif # INSTALL_MOD_STRIP

757

export mod_strip_cmd

757

export mod_strip_cmd

758

759

# Select initial ramdisk compression format, default is gzip(1).

759

# Select initial ramdisk compression format, default is gzip(1).

760

# This shall be used by the dracut(8) tool while creating an initramfs image.

760

# This shall be used by the dracut(8) tool while creating an initramfs image.

761

#

761

#

762

INITRD_COMPRESS-y := gzip

762

INITRD_COMPRESS-y := gzip

763

INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2

763

INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2

764

INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma

764

INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma

765

INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz

765

INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz

766

INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo

766

INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo

767

INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4

767

INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4

768

# do not export INITRD_COMPRESS, since we didn't actually

768

# do not export INITRD_COMPRESS, since we didn't actually

769

# choose a sane default compression above.

769

# choose a sane default compression above.

770

# export INITRD_COMPRESS := $(INITRD_COMPRESS-y)

770

# export INITRD_COMPRESS := $(INITRD_COMPRESS-y)

771

772

ifdef CONFIG_MODULE_SIG_ALL

772

ifdef CONFIG_MODULE_SIG_ALL

773

MODSECKEY = ./signing_key.priv

773

MODSECKEY = ./signing_key.priv

774

MODPUBKEY = ./signing_key.x509

774

MODPUBKEY = ./signing_key.x509

775

export MODPUBKEY

775

export MODPUBKEY

776

mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY)

776

mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY)

777

else

777

else

778

mod_sign_cmd = true

778

mod_sign_cmd = true

779

endif

779

endif

780

export mod_sign_cmd

780

export mod_sign_cmd

781

782

783

ifeq ($(KBUILD_EXTMOD),)

783

ifeq ($(KBUILD_EXTMOD),)

784

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

784

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

785

786

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

786

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

787

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

787

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

788

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

788

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

789

790

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

790

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

791

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

791

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

792

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

792

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

793

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

793

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

794

795

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

795

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

796

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

796

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

797

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

797

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

798

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

798

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

799

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

799

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

800

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

800

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

801

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

801

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

802

803

# Externally visible symbols (used by link-vmlinux.sh)

803

# Externally visible symbols (used by link-vmlinux.sh)

804

export KBUILD_VMLINUX_INIT := $(head-y) $(init-y)

804

export KBUILD_VMLINUX_INIT := $(head-y) $(init-y)

805

export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y)

805

export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y)

806

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

806

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

807

export LDFLAGS_vmlinux

807

export LDFLAGS_vmlinux

808

# used by scripts/pacmage/Makefile

808

# used by scripts/pacmage/Makefile

809

export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt)

809

export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt)

810

811

vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN)

811

vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN)

812

813

# Final link of vmlinux

813

# Final link of vmlinux

814

cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux)

814

cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux)

815

quiet_cmd_link-vmlinux = LINK $@

815

quiet_cmd_link-vmlinux = LINK $@

816

817

# Include targets which we want to

817

# Include targets which we want to

818

# execute if the rest of the kernel build went well.

818

# execute if the rest of the kernel build went well.

819

vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE

819

vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE

820

ifdef CONFIG_HEADERS_CHECK

820

ifdef CONFIG_HEADERS_CHECK

821

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

821

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

822

endif

822

endif

823

ifdef CONFIG_SAMPLES

823

ifdef CONFIG_SAMPLES

824

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

824

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

825

endif

825

endif

826

ifdef CONFIG_BUILD_DOCSRC

826

ifdef CONFIG_BUILD_DOCSRC

827

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

827

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

828

endif

828

endif

829

+$(call if_changed,link-vmlinux)

829

+$(call if_changed,link-vmlinux)

830

831

# The actual objects are generated when descending,

831

# The actual objects are generated when descending,

832

# make sure no implicit rule kicks in

832

# make sure no implicit rule kicks in

833

$(sort $(vmlinux-deps)): $(vmlinux-dirs) ;

833

$(sort $(vmlinux-deps)): $(vmlinux-dirs) ;

834

835

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

835

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

836

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

836

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

837

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

837

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

838

# make menuconfig etc.

838

# make menuconfig etc.

839

# Error messages still appears in the original language

839

# Error messages still appears in the original language

840

841

PHONY += $(vmlinux-dirs)

841

PHONY += $(vmlinux-dirs)

842

$(vmlinux-dirs): prepare scripts

842

$(vmlinux-dirs): prepare scripts

843

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

843

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

844

845

define filechk_kernel.release

845

define filechk_kernel.release

846

echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"

846

echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"

847

endef

847

endef

848

849

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

849

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

850

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

850

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

851

$(call filechk,kernel.release)

851

$(call filechk,kernel.release)

852

853

854

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

854

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

855

# or the modules are listed in "prepare".

855

# or the modules are listed in "prepare".

856

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

856

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

857

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

857

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

858

# version.h and scripts_basic is processed / created.

858

# version.h and scripts_basic is processed / created.

859

860

# Listed in dependency order

860

# Listed in dependency order

861

PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3

861

PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3

862

863

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

863

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

864

# and if so do:

864

# and if so do:

865

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

865

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

866

prepare3: include/config/kernel.release

866

prepare3: include/config/kernel.release

867

ifneq ($(KBUILD_SRC),)

867

ifneq ($(KBUILD_SRC),)

868

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

868

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

869

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

869

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

870

echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \

870

echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \

871

echo >&2 " in the '$(srctree)' directory.";\

871

echo >&2 " in the '$(srctree)' directory.";\

872

/bin/false; \

872

/bin/false; \

873

fi;

873

fi;

874

endif

874

endif

875

876

# prepare2 creates a makefile if using a separate output directory

876

# prepare2 creates a makefile if using a separate output directory

877

prepare2: prepare3 outputmakefile asm-generic

877

prepare2: prepare3 outputmakefile asm-generic

878

879

prepare1: prepare2 $(version_h) include/generated/utsrelease.h \

879

prepare1: prepare2 $(version_h) include/generated/utsrelease.h \

880

include/config/auto.conf

880

include/config/auto.conf

881

$(cmd_crmodverdir)

881

$(cmd_crmodverdir)

882

883

archprepare: archheaders archscripts prepare1 scripts_basic

883

archprepare: archheaders archscripts prepare1 scripts_basic

884

885

prepare0: archprepare FORCE

885

prepare0: archprepare FORCE

886

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

886

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

887

888

# All the preparing..

888

# All the preparing..

889

prepare: prepare0

889

prepare: prepare0

890

891

# Generate some files

891

# Generate some files

892

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

892

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

893

894

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

894

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

895

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

895

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

896

897

uts_len := 64

897

uts_len := 64

898

define filechk_utsrelease.h

898

define filechk_utsrelease.h

899

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

899

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

900

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

900

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

901

exit 1; \

901

exit 1; \

902

fi; \

902

fi; \

903

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

903

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

904

endef

904

endef

905

906

define filechk_version.h

906

define filechk_version.h

907

(echo \#define LINUX_VERSION_CODE $(shell \

907

(echo \#define LINUX_VERSION_CODE $(shell \

908

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

908

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

909

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

909

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

910

endef

910

endef

911

912

$(version_h): $(srctree)/Makefile FORCE

912

$(version_h): $(srctree)/Makefile FORCE

913

$(call filechk,version.h)

913

$(call filechk,version.h)

914

915

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

915

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

916

$(call filechk,utsrelease.h)

916

$(call filechk,utsrelease.h)

917

918

PHONY += headerdep

918

PHONY += headerdep

919

headerdep:

919

headerdep:

920

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

920

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

921

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

921

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

922

923

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

923

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

924

925

PHONY += depend dep

925

PHONY += depend dep

926

depend dep:

926

depend dep:

927

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

927

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

928

929

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

929

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

930

# Firmware install

930

# Firmware install

931

INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware

931

INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware

932

export INSTALL_FW_PATH

932

export INSTALL_FW_PATH

933

934

PHONY += firmware_install

934

PHONY += firmware_install

935

firmware_install: FORCE

935

firmware_install: FORCE

936

@mkdir -p $(objtree)/firmware

936

@mkdir -p $(objtree)/firmware

937

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

937

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

938

939

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

939

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

940

# Kernel headers

940

# Kernel headers

941

942

#Default location for installed headers

942

#Default location for installed headers

943

export INSTALL_HDR_PATH = $(objtree)/usr

943

export INSTALL_HDR_PATH = $(objtree)/usr

944

945

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

945

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

946

947

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

947

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

948

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

948

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

949

950

PHONY += archheaders

950

PHONY += archheaders

951

archheaders:

951

archheaders:

952

953

PHONY += archscripts

953

PHONY += archscripts

954

archscripts:

954

archscripts:

955

956

PHONY += __headers

956

PHONY += __headers

957

__headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE

957

__headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE

958

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

958

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

959

960

PHONY += headers_install_all

960

PHONY += headers_install_all

961

headers_install_all:

961

headers_install_all:

962

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

962

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

963

964

PHONY += headers_install

964

PHONY += headers_install

965

headers_install: __headers

965

headers_install: __headers

966

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

966

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

967

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

967

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

968

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

968

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

969

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

969

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

970

971

PHONY += headers_check_all

971

PHONY += headers_check_all

972

headers_check_all: headers_install_all

972

headers_check_all: headers_install_all

973

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

973

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

974

975

PHONY += headers_check

975

PHONY += headers_check

976

headers_check: headers_install

976

headers_check: headers_install

977

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

977

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

978

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

978

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

979

980

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

980

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

981

# Modules

981

# Modules

982

983

ifdef CONFIG_MODULES

983

ifdef CONFIG_MODULES

984

985

# By default, build modules as well

985

# By default, build modules as well

986

987

all: modules

987

all: modules

988

989

# Build modules

989

# Build modules

990

#

990

#

991

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

991

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

992

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

992

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

993

# using awk while concatenating to the final file.

993

# using awk while concatenating to the final file.

994

995

PHONY += modules

995

PHONY += modules

996

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

996

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

997

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

997

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

998

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

998

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

999

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

999

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

1000

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

1000

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

1001

1002

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

1002

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

1003

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

1003

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

1004

1005

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

1005

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

1006

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

1006

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

1007

1008

1009

# Target to prepare building external modules

1009

# Target to prepare building external modules

1010

PHONY += modules_prepare

1010

PHONY += modules_prepare

1011

modules_prepare: prepare scripts

1011

modules_prepare: prepare scripts

1012

1013

# Target to install modules

1013

# Target to install modules

1014

PHONY += modules_install

1014

PHONY += modules_install

1015

modules_install: _modinst_ _modinst_post

1015

modules_install: _modinst_ _modinst_post

1016

1017

PHONY += _modinst_

1017

PHONY += _modinst_

1018

_modinst_:

1018

_modinst_:

1019

@rm -rf $(MODLIB)/kernel

1019

@rm -rf $(MODLIB)/kernel

1020

@rm -f $(MODLIB)/source

1020

@rm -f $(MODLIB)/source

1021

@mkdir -p $(MODLIB)/kernel

1021

@mkdir -p $(MODLIB)/kernel

1022

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

1022

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

1023

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

1023

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

1024

rm -f $(MODLIB)/build ; \

1024

rm -f $(MODLIB)/build ; \

1025

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

1025

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

1026

fi

1026

fi

1027

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

1027

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

1028

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

1028

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

1029

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

1029

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

1030

1031

# This depmod is only for convenience to give the initial

1031

# This depmod is only for convenience to give the initial

1032

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

1032

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

1033

# boot script depmod is the master version.

1033

# boot script depmod is the master version.

1034

PHONY += _modinst_post

1034

PHONY += _modinst_post

1035

_modinst_post: _modinst_

1035

_modinst_post: _modinst_

1036

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

1036

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

1037

$(call cmd,depmod)

1037

$(call cmd,depmod)

1038

1039

ifeq ($(CONFIG_MODULE_SIG), y)

1039

ifeq ($(CONFIG_MODULE_SIG), y)

1040

PHONY += modules_sign

1040

PHONY += modules_sign

1041

modules_sign:

1041

modules_sign:

1042

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

1042

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

1043

endif

1043

endif

1044

1045

else # CONFIG_MODULES

1045

else # CONFIG_MODULES

1046

1047

# Modules not configured

1047

# Modules not configured

1048

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

1048

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

1049

1050

modules modules_install: FORCE

1050

modules modules_install: FORCE

1051

@echo >&2

1051

@echo >&2

1052

@echo >&2 "The present kernel configuration has modules disabled."

1052

@echo >&2 "The present kernel configuration has modules disabled."

1053

@echo >&2 "Type 'make config' and enable loadable module support."

1053

@echo >&2 "Type 'make config' and enable loadable module support."

1054

@echo >&2 "Then build a kernel with module support enabled."

1054

@echo >&2 "Then build a kernel with module support enabled."

1055

@echo >&2

1055

@echo >&2

1056

@exit 1

1056

@exit 1

1057

1058

endif # CONFIG_MODULES

1058

endif # CONFIG_MODULES

1059

1060

###

1060

###

1061

# Cleaning is done on three levels.

1061

# Cleaning is done on three levels.

1062

# make clean Delete most generated files

1062

# make clean Delete most generated files

1063

# Leave enough to build external modules

1063

# Leave enough to build external modules

1064

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

1064

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

1065

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

1065

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

1066

1067

# Directories & files removed with 'make clean'

1067

# Directories & files removed with 'make clean'

1068

CLEAN_DIRS += $(MODVERDIR)

1068

CLEAN_DIRS += $(MODVERDIR)

1069

1070

# Directories & files removed with 'make mrproper'

1070

# Directories & files removed with 'make mrproper'

1071

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

1071

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

1072

arch/*/include/generated

1072

arch/*/include/generated

1073

MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \

1073

MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \

1074

Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \

1074

Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \

1075

signing_key.priv signing_key.x509 x509.genkey \

1075

signing_key.priv signing_key.x509 x509.genkey \

1076

extra_certificates signing_key.x509.keyid \

1076

extra_certificates signing_key.x509.keyid \

1077

signing_key.x509.signer

1077

signing_key.x509.signer

1078

1079

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

1079

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

1080

#

1080

#

1081

clean: rm-dirs := $(CLEAN_DIRS)

1081

clean: rm-dirs := $(CLEAN_DIRS)

1082

clean: rm-files := $(CLEAN_FILES)

1082

clean: rm-files := $(CLEAN_FILES)

1083

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

1083

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

1084

1085

PHONY += $(clean-dirs) clean archclean vmlinuxclean

1085

PHONY += $(clean-dirs) clean archclean vmlinuxclean

1086

$(clean-dirs):

1086

$(clean-dirs):

1087

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

1087

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

1088

1089

vmlinuxclean:

1089

vmlinuxclean:

1090

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean

1090

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean

1091

1092

clean: archclean vmlinuxclean

1092

clean: archclean vmlinuxclean

1093

1094

# mrproper - Delete all generated files, including .config

1094

# mrproper - Delete all generated files, including .config

1095

#

1095

#

1096

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

1096

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

1097

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

1097

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

1098

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

1098

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

1099

1100

PHONY += $(mrproper-dirs) mrproper archmrproper

1100

PHONY += $(mrproper-dirs) mrproper archmrproper

1101

$(mrproper-dirs):

1101

$(mrproper-dirs):

1102

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

1102

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

1103

1104

mrproper: clean archmrproper $(mrproper-dirs)

1104

mrproper: clean archmrproper $(mrproper-dirs)

1105

$(call cmd,rmdirs)

1105

$(call cmd,rmdirs)

1106

$(call cmd,rmfiles)

1106

$(call cmd,rmfiles)

1107

1108

# distclean

1108

# distclean

1109

#

1109

#

1110

PHONY += distclean

1110

PHONY += distclean

1111

1112

distclean: mrproper

1112

distclean: mrproper

1113

@find $(srctree) $(RCS_FIND_IGNORE) \

1113

@find $(srctree) $(RCS_FIND_IGNORE) \

1114

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

1114

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

1115

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

1115

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

1116

-o -name '.*.rej' \

1116

-o -name '.*.rej' \

1117

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

1117

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

1118

-type f -print | xargs rm -f

1118

-type f -print | xargs rm -f

1119

1120

1121

# Packaging of the kernel to various formats

1121

# Packaging of the kernel to various formats

1122

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

1122

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

1123

# rpm target kept for backward compatibility

1123

# rpm target kept for backward compatibility

1124

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

1124

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

1125

1126

%src-pkg: FORCE

1126

%src-pkg: FORCE

1127

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

1127

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

1128

%pkg: include/config/kernel.release FORCE

1128

%pkg: include/config/kernel.release FORCE

1129

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

1129

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

1130

rpm: include/config/kernel.release FORCE

1130

rpm: include/config/kernel.release FORCE

1131

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

1131

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

1132

1133

1134

# Brief documentation of the typical targets used

1134

# Brief documentation of the typical targets used

1135

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

1135

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

1136

1137

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

1137

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

1138

boards := $(notdir $(boards))

1138

boards := $(notdir $(boards))

1139

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

1139

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

1140

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

1140

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

1141

1142

help:

1142

help:

1143

@echo 'Cleaning targets:'

1143

@echo 'Cleaning targets:'

1144

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

1144

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

1145

@echo ' enough build support to build external modules'

1145

@echo ' enough build support to build external modules'

1146

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

1146

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

1147

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

1147

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

1148

@echo ''

1148

@echo ''

1149

@echo 'Configuration targets:'

1149

@echo 'Configuration targets:'

1150

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

1150

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

1151

@echo ''

1151

@echo ''

1152

@echo 'Other generic targets:'

1152

@echo 'Other generic targets:'

1153

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

1153

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

1154

@echo '* vmlinux - Build the bare kernel'

1154

@echo '* vmlinux - Build the bare kernel'

1155

@echo '* modules - Build all modules'

1155

@echo '* modules - Build all modules'

1156

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

1156

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

1157

@echo ' firmware_install- Install all firmware to INSTALL_FW_PATH'

1157

@echo ' firmware_install- Install all firmware to INSTALL_FW_PATH'

1158

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

1158

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

1159

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

1159

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

1160

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

1160

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

1161

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

1161

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

1162

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

1162

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

1163

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

1163

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

1164

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

1164

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

1165

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

1165

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

1166

@echo ' cscope - Generate cscope index'

1166

@echo ' cscope - Generate cscope index'

1167

@echo ' gtags - Generate GNU GLOBAL index'

1167

@echo ' gtags - Generate GNU GLOBAL index'

1168

@echo ' kernelrelease - Output the release version string'

1168

@echo ' kernelrelease - Output the release version string'

1169

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

1169

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

1170

@echo ' image_name - Output the image name'

1170

@echo ' image_name - Output the image name'

1171

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

1171

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

1172

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

1172

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

1173

echo ''

1173

echo ''

1174

@echo 'Static analysers'

1174

@echo 'Static analysers'

1175

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

1175

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

1176

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

1176

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

1177

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

1177

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

1178

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

1178

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

1179

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

1179

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

1180

@echo ' headers_check - Sanity check on exported headers'

1180

@echo ' headers_check - Sanity check on exported headers'

1181

@echo ' headerdep - Detect inclusion cycles in headers'

1181

@echo ' headerdep - Detect inclusion cycles in headers'

1182

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

1182

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

1183

@echo ''

1183

@echo ''

1184

@echo 'Kernel packaging:'

1184

@echo 'Kernel packaging:'

1185

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

1185

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

1186

@echo ''

1186

@echo ''

1187

@echo 'Documentation targets:'

1187

@echo 'Documentation targets:'

1188

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

1188

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

1189

@echo ''

1189

@echo ''

1190

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

1190

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

1191

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

1191

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

1192

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

1192

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

1193

@echo ''

1193

@echo ''

1194

@$(if $(boards), \

1194

@$(if $(boards), \

1195

$(foreach b, $(boards), \

1195

$(foreach b, $(boards), \

1196

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

1196

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

1197

echo '')

1197

echo '')

1198

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

1198

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

1199

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

1199

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

1200

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

1200

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

1201

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

1201

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

1202

echo '')

1202

echo '')

1203

1204

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

1204

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

1205

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

1205

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

1206

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

1206

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

1207

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

1207

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

1208

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

1208

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

1209

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

1209

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

1210

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

1210

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

1211

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

1211

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

1212

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

1212

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

1213

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

1213

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

1214

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

1214

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

1215

@echo ''

1215

@echo ''

1216

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

1216

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

1217

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

1217

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

1218

1219

1220

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

1220

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

1221

1222

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

1222

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

1223

1224

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

1224

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

1225

1226

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

1226

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

1227

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

1227

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

1228

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

1228

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

1229

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

1229

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

1230

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

1230

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

1231

echo '')

1231

echo '')

1232

1233

1234

# Documentation targets

1234

# Documentation targets

1235

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

1235

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

1236

%docs: scripts_basic FORCE

1236

%docs: scripts_basic FORCE

1237

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

1237

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

1238

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

1238

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

1239

1240

else # KBUILD_EXTMOD

1240

else # KBUILD_EXTMOD

1241

1242

###

1242

###

1243

# External module support.

1243

# External module support.

1244

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

1244

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

1245

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

1245

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

1246

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

1246

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

1247

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

1247

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

1248

# be used.

1248

# be used.

1249

#

1249

#

1250

# The following are the only valid targets when building external

1250

# The following are the only valid targets when building external

1251

# modules.

1251

# modules.

1252

# make M=dir clean Delete all automatically generated files

1252

# make M=dir clean Delete all automatically generated files

1253

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

1253

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

1254

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

1254

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

1255

# make M=dir modules_install

1255

# make M=dir modules_install

1256

# Install the modules built in the module directory

1256

# Install the modules built in the module directory

1257

# Assumes install directory is already created

1257

# Assumes install directory is already created

1258

1259

# We are always building modules

1259

# We are always building modules

1260

KBUILD_MODULES := 1

1260

KBUILD_MODULES := 1

1261

PHONY += crmodverdir

1261

PHONY += crmodverdir

1262

crmodverdir:

1262

crmodverdir:

1263

$(cmd_crmodverdir)

1263

$(cmd_crmodverdir)

1264

1265

PHONY += $(objtree)/Module.symvers

1265

PHONY += $(objtree)/Module.symvers

1266

$(objtree)/Module.symvers:

1266

$(objtree)/Module.symvers:

1267

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

1267

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

1268

echo; \

1268

echo; \

1269

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

1269

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

1270

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

1270

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

1271

echo )

1271

echo )

1272

1273

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

1273

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

1274

PHONY += $(module-dirs) modules

1274

PHONY += $(module-dirs) modules

1275

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

1275

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

1276

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

1276

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

1277

1278

modules: $(module-dirs)

1278

modules: $(module-dirs)

1279

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

1279

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

1280

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

1280

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

1281

1282

PHONY += modules_install

1282

PHONY += modules_install

1283

modules_install: _emodinst_ _emodinst_post

1283

modules_install: _emodinst_ _emodinst_post

1284

1285

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

1285

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

1286

PHONY += _emodinst_

1286

PHONY += _emodinst_

1287

_emodinst_:

1287

_emodinst_:

1288

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

1288

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

1289

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

1289

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

1290

1291

PHONY += _emodinst_post

1291

PHONY += _emodinst_post

1292

_emodinst_post: _emodinst_

1292

_emodinst_post: _emodinst_

1293

$(call cmd,depmod)

1293

$(call cmd,depmod)

1294

1295

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

1295

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

1296

1297

PHONY += $(clean-dirs) clean

1297

PHONY += $(clean-dirs) clean

1298

$(clean-dirs):

1298

$(clean-dirs):

1299

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

1299

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

1300

1301

clean: rm-dirs := $(MODVERDIR)

1301

clean: rm-dirs := $(MODVERDIR)

1302

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

1302

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

1303

1304

help:

1304

help:

1305

@echo ' Building external modules.'

1305

@echo ' Building external modules.'

1306

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

1306

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

1307

@echo ''

1307

@echo ''

1308

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

1308

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

1309

@echo ' modules_install - install the module'

1309

@echo ' modules_install - install the module'

1310

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

1310

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

1311

@echo ''

1311

@echo ''

1312

1313

# Dummies...

1313

# Dummies...

1314

PHONY += prepare scripts

1314

PHONY += prepare scripts

1315

prepare: ;

1315

prepare: ;

1316

scripts: ;

1316

scripts: ;

1317

endif # KBUILD_EXTMOD

1317

endif # KBUILD_EXTMOD

1318

1319

clean: $(clean-dirs)

1319

clean: $(clean-dirs)

1320

$(call cmd,rmdirs)

1320

$(call cmd,rmdirs)

1321

$(call cmd,rmfiles)

1321

$(call cmd,rmfiles)

1322

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

1322

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

1323

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

1323

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

1324

-o -name '*.ko.*' \

1324

-o -name '*.ko.*' \

1325

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

1325

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

1326

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

1326

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

1327

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

1327

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

1328

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

1328

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

1329

1330

# Generate tags for editors

1330

# Generate tags for editors

1331

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

1331

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

1332

quiet_cmd_tags = GEN $@

1332

quiet_cmd_tags = GEN $@

1333

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

1333

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

1334

1335

tags TAGS cscope gtags: FORCE

1335

tags TAGS cscope gtags: FORCE

1336

$(call cmd,tags)

1336

$(call cmd,tags)

1337

1338

# Scripts to check various things for consistency

1338

# Scripts to check various things for consistency

1339

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

1339

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

1340

1341

PHONY += includecheck versioncheck coccicheck namespacecheck export_report

1341

PHONY += includecheck versioncheck coccicheck namespacecheck export_report

1342

1343

includecheck:

1343

includecheck:

1344

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

1344

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

1345

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

1345

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

1346

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

1346

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

1347

1348

versioncheck:

1348

versioncheck:

1349

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

1349

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

1350

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

1350

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

1351

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

1351

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

1352

1353

coccicheck:

1353

coccicheck:

1354

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

1354

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

1355

1356

namespacecheck:

1356

namespacecheck:

1357

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

1357

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

1358

1359

export_report:

1359

export_report:

1360

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

1360

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

1361

1362

endif #ifeq ($(config-targets),1)

1362

endif #ifeq ($(config-targets),1)

1363

endif #ifeq ($(mixed-targets),1)

1363

endif #ifeq ($(mixed-targets),1)

1364

1365

PHONY += checkstack kernelrelease kernelversion image_name

1365

PHONY += checkstack kernelrelease kernelversion image_name

1366

1367

# UML needs a little special treatment here. It wants to use the host

1367

# UML needs a little special treatment here. It wants to use the host

1368

# toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone

1368

# toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone

1369

# else wants $(ARCH), including people doing cross-builds, which means

1369

# else wants $(ARCH), including people doing cross-builds, which means

1370

# that $(SUBARCH) doesn't work here.

1370

# that $(SUBARCH) doesn't work here.

1371

ifeq ($(ARCH), um)

1371

ifeq ($(ARCH), um)

1372

CHECKSTACK_ARCH := $(SUBARCH)

1372

CHECKSTACK_ARCH := $(SUBARCH)

1373

else

1373

else

1374

CHECKSTACK_ARCH := $(ARCH)

1374

CHECKSTACK_ARCH := $(ARCH)

1375

endif

1375

endif

1376

checkstack:

1376

checkstack:

1377

$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \

1377

$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \

1378

$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)

1378

$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)

1379

1380

kernelrelease:

1380

kernelrelease:

1381

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

1381

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

1382

1383

kernelversion:

1383

kernelversion:

1384

@echo $(KERNELVERSION)

1384

@echo $(KERNELVERSION)

1385

1386

image_name:

1386

image_name:

1387

@echo $(KBUILD_IMAGE)

1387

@echo $(KBUILD_IMAGE)

1388

1389

# Clear a bunch of variables before executing the submake

1389

# Clear a bunch of variables before executing the submake

1390

tools/: FORCE

1390

tools/: FORCE

1391

$(Q)mkdir -p $(objtree)/tools

1391

$(Q)mkdir -p $(objtree)/tools

1392

$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/

1392

$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/

1393

1394

tools/%: FORCE

1394

tools/%: FORCE

1395

$(Q)mkdir -p $(objtree)/tools

1395

$(Q)mkdir -p $(objtree)/tools

1396

$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $*

1396

$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $*

1397

1398

# Single targets

1398

# Single targets

1399

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

1399

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

1400

# Single targets are compatible with:

1400

# Single targets are compatible with:

1401

# - build with mixed source and output

1401

# - build with mixed source and output

1402

# - build with separate output dir 'make O=...'

1402

# - build with separate output dir 'make O=...'

1403

# - external modules

1403

# - external modules

1404

#

1404

#

1405

# target-dir => where to store outputfile

1405

# target-dir => where to store outputfile

1406

# build-dir => directory in kernel source tree to use

1406

# build-dir => directory in kernel source tree to use

1407

1408

ifeq ($(KBUILD_EXTMOD),)

1408

ifeq ($(KBUILD_EXTMOD),)

1409

build-dir = $(patsubst %/,%,$(dir $@))

1409

build-dir = $(patsubst %/,%,$(dir $@))

1410

target-dir = $(dir $@)

1410

target-dir = $(dir $@)

1411

else

1411

else

1412

zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))

1412

zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))

1413

build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))

1413

build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))

1414

target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))

1414

target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))

1415

endif

1415

endif

1416

1417

%.s: %.c prepare scripts FORCE

1417

%.s: %.c prepare scripts FORCE

1418