1217 lines
39 KiB
Makefile
1217 lines
39 KiB
Makefile
VERSION_MAJOR = 0
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VERSION_MINOR = 5
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PATCHLEVEL = 0
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VERSION_RESERVED = 0
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EXTRAVERSION =
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NAME = Zephyr Kernel
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export SOURCE_DIR PROJECT MDEF_FILE KLIBC_DIR
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# *DOCUMENTATION*
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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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# 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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#
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# o Do not use make's built-in rules and variables
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# (this increases performance and avoids hard-to-debug behaviour);
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# o Look for make include files relative to root of kernel src
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MAKEFLAGS += -rR --include-dir=$(CURDIR)
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# Avoid funny character set dependencies
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unexport LC_ALL
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LC_COLLATE=C
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LC_NUMERIC=C
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export LC_COLLATE LC_NUMERIC
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# Avoid interference with shell env settings
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unexport GREP_OPTIONS
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DQUOTE = "
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#This comment line is to fix the highlighting of some editors due the quote effect."
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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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#
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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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# 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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# turn into the kernel binary), we will call a sub make in that other
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# dir, and after that we are sure that everything which is in that
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# other dir is now up to date.
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#
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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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# descending is started. They are now explicitly listed as the
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# prepare rule.
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# Beautify output
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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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# 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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#
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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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#
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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 "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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#
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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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#
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# $(Q)ln $@ :<
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#
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# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
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# If KBUILD_VERBOSE equals 1 then the above command is displayed.
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#
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# To put more focus on warnings, be less verbose as default
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# Use 'make V=1' to see the full commands
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ifeq ("$(origin V)", "command line")
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KBUILD_VERBOSE = $(V)
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endif
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ifndef KBUILD_VERBOSE
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KBUILD_VERBOSE = 0
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endif
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ifeq ($(KBUILD_VERBOSE),1)
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quiet =
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Q =
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else
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quiet=quiet_
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Q = @
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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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# commands
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ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
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ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
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quiet=silent_
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endif
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else # make-3.8x
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ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
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quiet=silent_
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endif
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endif
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export quiet Q KBUILD_VERBOSE
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# kbuild supports saving output files in a separate directory.
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# To locate output files in a separate directory two syntaxes are supported.
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# In both cases the working directory must be the root of the kernel src.
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# 1) O=
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# Use "make O=dir/to/store/output/files/"
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#
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# 2) Set KBUILD_OUTPUT
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# Set the environment variable KBUILD_OUTPUT to point to the directory
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# where the output files shall be placed.
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# export KBUILD_OUTPUT=dir/to/store/output/files/
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# make
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#
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# The O= assignment takes precedence over the KBUILD_OUTPUT environment
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# variable.
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# KBUILD_SRC is set on invocation of make in OBJ directory
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# KBUILD_SRC is not intended to be used by the regular user (for now)
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ifeq ($(KBUILD_SRC),)
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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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ifeq ("$(origin O)", "command line")
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KBUILD_OUTPUT := $(O)
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endif
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# That's our default target when none is given on the command line
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PHONY := _all
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_all:
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# Cancel implicit rules on top Makefile
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$(CURDIR)/Makefile Makefile: ;
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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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# check that the output directory actually exists
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saved-output := $(KBUILD_OUTPUT)
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KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
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&& /bin/pwd)
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$(if $(KBUILD_OUTPUT),, \
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$(error failed to create output directory "$(saved-output)"))
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PHONY += $(MAKECMDGOALS) sub-make
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$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
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@:
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sub-make: FORCE
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$(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
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-f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
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# Leave processing to above invocation of make
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skip-makefile := 1
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endif # ifneq ($(KBUILD_OUTPUT),)
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endif # ifeq ($(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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ifeq ($(skip-makefile),)
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# Do not print "Entering directory ...",
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# but we want to display it when entering to the output directory
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# so that IDEs/editors are able to understand relative filenames.
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MAKEFLAGS += --no-print-directory
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# Call a source code checker (by default, "sparse") as part of the
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# C compilation.
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#
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# Use 'make C=1' to enable checking of only re-compiled files.
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# Use 'make C=2' to enable checking of *all* source files, regardless
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# of whether they are re-compiled or not.
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#
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ifeq ("$(origin C)", "command line")
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KBUILD_CHECKSRC = $(C)
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endif
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ifndef KBUILD_CHECKSRC
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KBUILD_CHECKSRC = 0
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endif
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PHONY += all
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_all: all
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ifeq ($(KBUILD_SRC),)
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# building in the source tree
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srctree := .
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else
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ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
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# building in a subdirectory of the source tree
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srctree := ..
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else
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srctree := $(KBUILD_SRC)
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endif
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endif
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objtree := .
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src := $(srctree)
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obj := $(objtree)
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VPATH := $(srctree)
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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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# 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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# then ARCH is assigned, getting whatever value it gets normally, and
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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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-e s/sun4u/sparc64/ \
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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/ppc.*/powerpc/ -e s/mips.*/mips/ \
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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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# ---------------------------------------------------------------------------
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#
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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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# ARCH can be set during invocation of make:
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# make ARCH=x86
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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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# 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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# are prefixed with $(CROSS_COMPILE).
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# CROSS_COMPILE can be set on the command line
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# make CROSS_COMPILE=i586-pc-elf
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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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# "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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# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
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ARCH ?= $(SUBARCH)
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CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%)
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# Architecture as present in compile.h
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UTS_MACHINE := $(ARCH)
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SRCARCH := $(ARCH)
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# Additional ARCH settings for x86
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ifeq ($(ARCH),i386)
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SRCARCH := x86
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endif
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ifeq ($(ARCH),x86_64)
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SRCARCH := x86
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endif
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# Additional ARCH settings for sparc
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ifeq ($(ARCH),sparc32)
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SRCARCH := sparc
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endif
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ifeq ($(ARCH),sparc64)
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SRCARCH := sparc
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endif
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# Additional ARCH settings for sh
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ifeq ($(ARCH),sh64)
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SRCARCH := sh
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endif
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# Additional ARCH settings for tile
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ifeq ($(ARCH),tilepro)
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SRCARCH := tile
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endif
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ifeq ($(ARCH),tilegx)
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SRCARCH := tile
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endif
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# Where to locate arch specific headers
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hdr-arch := $(SRCARCH)
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KCONFIG_CONFIG ?= .config
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export KCONFIG_CONFIG
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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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else if [ -x /bin/bash ]; then echo /bin/bash; \
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else echo sh; fi ; fi)
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HOSTCC = gcc
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HOSTCXX = g++
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HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89
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HOSTCXXFLAGS = -O2
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ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
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HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \
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-Wno-missing-field-initializers -fno-delete-null-pointer-checks
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endif
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# Decide whether to build built-in, modular, or both.
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# Normally, just do built-in.
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KBUILD_MODULES :=
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KBUILD_BUILTIN := 1
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export KBUILD_MODULES KBUILD_BUILTIN
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export KBUILD_CHECKSRC KBUILD_SRC
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ifneq ($(CC),)
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ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1)
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COMPILER := clang
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else
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COMPILER := gcc
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endif
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export COMPILER
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endif
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# Look for make include files relative to root of kernel src
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MAKEFLAGS += --include-dir=$(srctree)
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# We need some generic definitions (do not try to remake the file).
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$(srctree)/scripts/Kbuild.include: ;
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include $(srctree)/scripts/Kbuild.include
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ifeq ($(USE_CCACHE),1)
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CCACHE := ccache
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endif
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# Make variables (CC, etc...)
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AS = $(CROSS_COMPILE)as
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LD = $(CROSS_COMPILE)ld
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ifeq ($(USE_CCACHE),1)
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CC = $(CCACHE) $(CROSS_COMPILE)gcc
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else
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CC = $(CROSS_COMPILE)gcc
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endif
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CPP = $(CC) -E
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AR = $(CROSS_COMPILE)ar
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NM = $(CROSS_COMPILE)nm
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STRIP = $(CROSS_COMPILE)strip
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OBJCOPY = $(CROSS_COMPILE)objcopy
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OBJDUMP = $(CROSS_COMPILE)objdump
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AWK = awk
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GENKSYMS = scripts/genksyms/genksyms
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GENIDT = scripts/gen_idt/gen_idt
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GENOFFSET_H = scripts/gen_offset_header/gen_offset_header
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PERL = perl
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PYTHON = python
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CHECK = sparse
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CHECKFLAGS := -Wbitwise -Wno-return-void $(CF)
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CFLAGS_MODULE =
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AFLAGS_MODULE =
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LDFLAGS_MODULE =
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CFLAGS_KERNEL =
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AFLAGS_KERNEL =
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CFLAGS_GCOV = -fprofile-arcs -ftest-coverage
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# Use USERINCLUDE when you must reference the UAPI directories only.
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USERINCLUDE := -include $(CURDIR)/include/generated/autoconf.h
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PROJECTINCLUDE := $(strip -I$(srctree)/include/microkernel \
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-I$(CURDIR)/misc/generated/sysgen) \
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$(USERINCLUDE)
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# Use ZEPHYRINCLUDE when you must reference the include/ directory.
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# Needed to be compatible with the O= option
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ZEPHYRINCLUDE := \
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-I$(srctree)/arch/$(hdr-arch)/include \
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$(if $(KBUILD_SRC), -I$(srctree)/include) \
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-I$(srctree)/include \
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-I$(CURDIR)/include/generated \
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$(USERINCLUDE) \
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$(STDINCLUDE)
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KBUILD_CPPFLAGS := -DKERNEL
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KBUILD_CFLAGS := -c -g -std=c99 \
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-fno-reorder-functions \
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-fno-asynchronous-unwind-tables \
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-fno-omit-frame-pointer \
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-fno-defer-pop -Wall \
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-Wno-unused-but-set-variable \
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-Wno-format-zero-length \
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-Wno-main -ffreestanding
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KBUILD_AFLAGS_KERNEL :=
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KBUILD_CFLAGS_KERNEL :=
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KBUILD_AFLAGS := -c -g -xassembler-with-cpp
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LDFLAGS += $(call ld-option,-nostartfiles)
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LDFLAGS += $(call ld-option,-nodefaultlibs)
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LDFLAGS += $(call ld-option,-nostdlib)
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LDFLAGS += $(call ld-option,-static)
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LDLIBS_TOOLCHAIN ?= -lgcc
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KERNELVERSION = $(VERSION_MAJOR)$(if $(VERSION_MINOR),.$(VERSION_MINOR)$(if $(PATCHLEVEL),.$(PATCHLEVEL)))$(EXTRAVERSION)
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export VERSION_MAJOR VERSION_MINOR PATCHLEVEL VERSION_RESERVED EXTRAVERSION
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export KERNELRELEASE KERNELVERSION
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export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
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export CPP AR NM STRIP OBJCOPY OBJDUMP
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export MAKE AWK GENKSYMS INSTALLKERNEL PERL PYTHON UTS_MACHINE GENIDT GENOFFSET_H
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export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
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export KBUILD_CPPFLAGS NOSTDINC_FLAGS ZEPHYRINCLUDE OBJCOPYFLAGS LDFLAGS
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export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV
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export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
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export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
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export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
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export KBUILD_ARFLAGS PROJECTINCLUDE LDLIBS_TOOLCHAIN
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|
# Files to ignore in find ... statements
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|
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|
export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
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|
-name CVS -o -name .pc -o -name .hg -o -name .git \) \
|
|
-prune -o
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|
export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
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|
--exclude CVS --exclude .pc --exclude .hg --exclude .git
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|
|
# ===========================================================================
|
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# Rules shared between *config targets and build targets
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|
# Basic helpers built in scripts/
|
|
PHONY += scripts_basic
|
|
scripts_basic:
|
|
$(Q)$(MAKE) $(build)=scripts/basic
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|
$(Q)$(MAKE) $(build)=scripts/gen_idt
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|
$(Q)$(MAKE) $(build)=scripts/gen_offset_header
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|
$(Q)rm -f .tmp_quiet_recordmcount
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|
|
|
# To avoid any implicit rule to kick in, define an empty command.
|
|
scripts/basic/%: scripts_basic ;
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|
|
|
PHONY += outputmakefile
|
|
# outputmakefile generates a Makefile in the output directory, if using a
|
|
# separate output directory. This allows convenient use of make in the
|
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# output directory.
|
|
outputmakefile:
|
|
ifneq ($(KBUILD_SRC),)
|
|
$(Q)ln -fsn $(srctree) source
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|
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
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|
$(srctree) $(objtree) $(VERSION_MAJOR) $(VERSION_MINOR)
|
|
endif
|
|
|
|
# Support for using generic headers in asm-generic
|
|
PHONY += asm-generic
|
|
asm-generic:
|
|
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
|
|
src=asm obj=arch/$(SRCARCH)/include/generated/asm
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|
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
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|
src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm
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|
|
|
# To make sure we do not include .config for any of the *config targets
|
|
# catch them early, and hand them over to scripts/kconfig/Makefile
|
|
# It is allowed to specify more targets when calling make, including
|
|
# mixing *config targets and build targets.
|
|
# For example 'make oldconfig all'.
|
|
# Detect when mixed targets is specified, and make a second invocation
|
|
# of make so .config is not included in this case either (for *config).
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|
|
version_h := include/generated/version.h
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|
|
|
no-dot-config-targets := pristine distclean clean mrproper help \
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|
cscope gtags TAGS tags help% %docs check% coccicheck \
|
|
$(version_h) headers_% archheaders archscripts \
|
|
kernelversion %src-pkg
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|
|
|
config-targets := 0
|
|
mixed-targets := 0
|
|
dot-config := 1
|
|
|
|
ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
|
|
ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
|
|
dot-config := 0
|
|
endif
|
|
endif
|
|
|
|
ifneq ($(filter config %config,$(MAKECMDGOALS)),)
|
|
config-targets := 1
|
|
ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
|
|
mixed-targets := 1
|
|
endif
|
|
endif
|
|
|
|
ifeq ($(mixed-targets),1)
|
|
# ===========================================================================
|
|
# We're called with mixed targets (*config and build targets).
|
|
# Handle them one by one.
|
|
|
|
PHONY += $(MAKECMDGOALS) __build_one_by_one
|
|
|
|
$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
|
|
@:
|
|
|
|
__build_one_by_one:
|
|
$(Q)set -e; \
|
|
for i in $(MAKECMDGOALS); do \
|
|
$(MAKE) -f $(srctree)/Makefile $$i; \
|
|
done
|
|
|
|
else
|
|
ifeq ($(config-targets),1)
|
|
# ===========================================================================
|
|
# *config targets only - make sure prerequisites are updated, and descend
|
|
# in scripts/kconfig to make the *config target
|
|
|
|
# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
|
|
# KBUILD_DEFCONFIG may point out an alternative default configuration
|
|
# used for 'make defconfig'
|
|
include $(srctree)/arch/$(SRCARCH)/Makefile
|
|
export KBUILD_DEFCONFIG KBUILD_KCONFIG
|
|
|
|
config: scripts_basic outputmakefile FORCE
|
|
$(Q)$(MAKE) $(build)=scripts/kconfig $@
|
|
|
|
%config: scripts_basic outputmakefile FORCE
|
|
$(Q)$(MAKE) $(build)=scripts/kconfig $@
|
|
|
|
else
|
|
# ===========================================================================
|
|
# Build targets only - this includes zephyr, arch specific targets, clean
|
|
# targets and others. In general all targets except *config targets.
|
|
|
|
# Additional helpers built in scripts/
|
|
# Carefully list dependencies so we do not try to build scripts twice
|
|
# in parallel
|
|
PHONY += scripts
|
|
scripts: scripts_basic include/config/auto.conf include/config/tristate.conf
|
|
$(Q)$(MAKE) $(build)=$(@)
|
|
|
|
|
|
core-y := lib/ arch/ kernel/ misc/ net/
|
|
drivers-y := drivers/
|
|
|
|
ifneq ($(strip $(PROJECT)),)
|
|
-include $(PROJECT)/Makefile.app
|
|
ifneq ($(strip $(KBUILD_ZEPHYR_APP)),)
|
|
export KBUILD_ZEPHYR_APP
|
|
endif
|
|
core-y += $(SOURCE_DIR)
|
|
endif
|
|
|
|
|
|
ifeq ($(dot-config),1)
|
|
# Read in config
|
|
-include include/config/auto.conf
|
|
|
|
# Read in dependencies to all Kconfig* files, make sure to run
|
|
# oldconfig if changes are detected.
|
|
-include include/config/auto.conf.cmd
|
|
|
|
# To avoid any implicit rule to kick in, define an empty command
|
|
$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
|
|
|
|
# If .config is newer than include/config/auto.conf, someone tinkered
|
|
# with it and forgot to run make oldconfig.
|
|
# if auto.conf.cmd is missing then we are probably in a cleaned tree so
|
|
# we execute the config step to be sure to catch updated Kconfig files
|
|
include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
|
|
$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
|
|
|
|
else
|
|
# Dummy target needed, because used as prerequisite
|
|
include/config/auto.conf: ;
|
|
endif # $(dot-config)
|
|
|
|
ifdef CONFIG_TINYCRYPT
|
|
# Objects we will link into the kernel / subdirs we need to visit
|
|
KCRYPTO_DIR := lib/crypto/tinycrypt
|
|
libs-y += $(KCRYPTO_DIR)/
|
|
ZEPHYRINCLUDE += -I$(srctree)/lib/crypto/tinycrypt/include
|
|
endif
|
|
|
|
ifdef ZEPHYR_GCC_VARIANT
|
|
include $(srctree)/scripts/Makefile.toolchain.$(ZEPHYR_GCC_VARIANT)
|
|
else
|
|
$(if $(CROSS_COMPILE),, \
|
|
$(error ZEPHYR_GCC_VARIANT is not set. ))
|
|
endif
|
|
|
|
ifdef CONFIG_MINIMAL_LIBC
|
|
ZEPHYRINCLUDE += -I$(srctree)/lib/libc/minimal/include
|
|
endif
|
|
|
|
ifdef CONFIG_NEWLIB_LIBC
|
|
ZEPHYRINCLUDE += $(TOOLCHAIN_CFLAGS)
|
|
ALL_LIBS += c m
|
|
endif
|
|
|
|
QEMU_BIN_PATH ?= /usr/bin
|
|
QEMU = $(QEMU_BIN_PATH)/$(QEMU_$(SRCARCH))
|
|
|
|
# The all: target is the default when no target is given on the
|
|
# command line.
|
|
# This allow a user to issue only 'make' to build a kernel including modules
|
|
# Defaults to zephyr, but the arch makefile usually adds further targets
|
|
all: zephyr
|
|
|
|
|
|
ifdef CONFIG_READABLE_ASM
|
|
# Disable optimizations that make assembler listings hard to read.
|
|
# reorder blocks reorders the control in the function
|
|
# ipa clone creates specialized cloned functions
|
|
# partial inlining inlines only parts of functions
|
|
KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \
|
|
$(call cc-option,-fno-ipa-cp-clone,) \
|
|
$(call cc-option,-fno-partial-inlining)
|
|
endif
|
|
|
|
# Handle stack protector mode.
|
|
#
|
|
# Since kbuild can potentially perform two passes (first with the old
|
|
# .config values and then with updated .config values), we cannot error out
|
|
# if a desired compiler option is unsupported. If we were to error, kbuild
|
|
# could never get to the second pass and actually notice that we changed
|
|
# the option to something that was supported.
|
|
#
|
|
# Additionally, we don't want to fallback and/or silently change which compiler
|
|
# flags will be used, since that leads to producing kernels with different
|
|
# security feature characteristics depending on the compiler used. ("But I
|
|
# selected CC_STACKPROTECTOR_STRONG! Why did it build with _REGULAR?!")
|
|
#
|
|
# The middle ground is to warn here so that the failed option is obvious, but
|
|
# to let the build fail with bad compiler flags so that we can't produce a
|
|
# kernel when there is a CONFIG and compiler mismatch.
|
|
#
|
|
ifdef CONFIG_CC_STACKPROTECTOR_REGULAR
|
|
stackp-flag := -fstack-protector
|
|
ifeq ($(call cc-option, $(stackp-flag)),)
|
|
$(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \
|
|
-fstack-protector not supported by compiler)
|
|
endif
|
|
else
|
|
ifdef CONFIG_CC_STACKPROTECTOR_STRONG
|
|
stackp-flag := -fstack-protector-strong
|
|
ifeq ($(call cc-option, $(stackp-flag)),)
|
|
$(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \
|
|
-fstack-protector-strong not supported by compiler)
|
|
endif
|
|
endif
|
|
endif
|
|
KBUILD_CFLAGS += $(stackp-flag)
|
|
|
|
ifeq ($(CONFIG_DEBUG),y)
|
|
KBUILD_CFLAGS += -O0
|
|
else
|
|
KBUILD_CFLAGS += -Os
|
|
endif
|
|
|
|
KBUILD_CFLAGS += $(subst $(DQUOTE),,$(CONFIG_COMPILER_OPT))
|
|
|
|
export LDFLAG_LINKERCMD OUTPUT_FORMAT OUTPUT_ARCH
|
|
|
|
include arch/$(SRCARCH)/Makefile
|
|
|
|
KBUILD_CFLAGS += $(CFLAGS)
|
|
KBUILD_AFLAGS += $(CFLAGS)
|
|
|
|
|
|
# We trigger additional mismatches with less inlining
|
|
ifdef CONFIG_DEBUG_SECTION_MISMATCH
|
|
KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
|
|
endif
|
|
|
|
# arch Makefile may override CC so keep this after arch Makefile is included
|
|
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
|
|
CHECKFLAGS += $(NOSTDINC_FLAGS)
|
|
|
|
# disable pointer signed / unsigned warnings in gcc 4.0
|
|
KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
|
|
|
|
# disable invalid "can't wrap" optimizations for signed / pointers
|
|
KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow)
|
|
|
|
# generate an extra file that specifies the maximum amount of stack used,
|
|
# on a per-function basis.
|
|
KBUILD_CFLAGS += $(call cc-option,-fstack-usage)
|
|
|
|
# conserve stack if available
|
|
KBUILD_CFLAGS += $(call cc-option,-fconserve-stack)
|
|
|
|
# disallow errors like 'EXPORT_GPL(foo);' with missing header
|
|
KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int)
|
|
|
|
# Prohibit date/time macros, which would make the build non-deterministic
|
|
# KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
|
|
|
|
# use the deterministic mode of AR if available
|
|
KBUILD_ARFLAGS := $(call ar-option,D)
|
|
|
|
include $(srctree)/scripts/Makefile.extrawarn
|
|
|
|
# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
|
|
KBUILD_CPPFLAGS += $(KCPPFLAGS)
|
|
KBUILD_AFLAGS += $(KAFLAGS)
|
|
KBUILD_CFLAGS += $(KCFLAGS)
|
|
|
|
# Use --build-id when available.
|
|
|
|
LDFLAGS_zephyr += $(call ld-option,-nostartfiles)
|
|
LDFLAGS_zephyr += $(call ld-option,-nodefaultlibs)
|
|
LDFLAGS_zephyr += $(call ld-option,-nostdlib)
|
|
LDFLAGS_zephyr += $(call ld-option,-static)
|
|
LDFLAGS_zephyr += $(call ld-option,-X)
|
|
LDFLAGS_zephyr += $(call ld-option,-N)
|
|
LDFLAGS_zephyr += $(call ld-option,--gc-sections)
|
|
LDFLAGS_zephyr += $(call ld-option,--build-id=none)
|
|
|
|
LD_TOOLCHAIN ?= -D__GCC_LINKER_CMD__
|
|
|
|
KERNEL_NAME=$(subst $(DQUOTE),,$(CONFIG_KERNEL_BIN_NAME))
|
|
|
|
export LD_TOOLCHAIN KERNEL_NAME
|
|
|
|
# Default kernel image to build when no specific target is given.
|
|
# KBUILD_IMAGE may be overruled on the command line or
|
|
# set in the environment
|
|
# Also any assignments in arch/$(ARCH)/Makefile take precedence over
|
|
# this default value
|
|
export KBUILD_IMAGE ?= zephyr
|
|
|
|
#
|
|
# INSTALL_PATH specifies where to place the updated kernel and system map
|
|
# images. Default is /boot, but you can set it to other values
|
|
export INSTALL_PATH ?= /boot
|
|
|
|
#
|
|
# INSTALL_DTBS_PATH specifies a prefix for relocations required by build roots.
|
|
# Like INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed as
|
|
# an argument if needed. Otherwise it defaults to the kernel install path
|
|
#
|
|
export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE)
|
|
|
|
core-y +=
|
|
|
|
zephyr-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
|
|
$(core-y) $(core-m) $(drivers-y) $(drivers-m) \
|
|
$(libs-y) $(libs-m)))
|
|
|
|
zephyr-alldirs := $(sort $(zephyr-dirs) $(patsubst %/,%,$(filter %/, \
|
|
$(init-) $(core-) $(drivers-) $(libs-))))
|
|
|
|
init-y := $(patsubst %/, %/built-in.o, $(init-y))
|
|
core-y := $(patsubst %/, %/built-in.o, $(core-y))
|
|
drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y))
|
|
libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))
|
|
libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))
|
|
libs-y := $(libs-y1) $(libs-y2)
|
|
|
|
# Externally visible symbols (used by link-zephyr.sh)
|
|
export KBUILD_ZEPHYR_INIT := $(head-y) $(init-y)
|
|
export KBUILD_ZEPHYR_MAIN := $(drivers-y) $(core-y) $(libs-y)
|
|
ifdef CONFIG_HAVE_CUSTOM_LINKER_SCRIPT
|
|
export KBUILD_LDS := $(subst $(DQUOTE),,$(CONFIG_CUSTOM_LINKER_SCRIPT))
|
|
else
|
|
export KBUILD_LDS := $(srctree)/arch/$(SRCARCH)/platforms/$(subst $(DQUOTE),,$(CONFIG_PLATFORM))/linker.cmd
|
|
endif
|
|
export LDFLAGS_zephyr
|
|
# used by scripts/pacmage/Makefile
|
|
export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(zephyr-alldirs)) arch include samples scripts)
|
|
|
|
zephyr-deps := $(KBUILD_LDS) $(KBUILD_ZEPHYR_INIT) $(KBUILD_ZEPHYR_MAIN)
|
|
|
|
ALL_LIBS += $(TOOLCHAIN_LIBS)
|
|
export ALL_LIBS
|
|
|
|
# Final link of zephyr
|
|
cmd_link-zephyr = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_zephyr) $(LIB_INCLUDE_DIR) $(ALL_LIBS)
|
|
quiet_cmd_link-zephyr = LINK $@
|
|
|
|
# Include targets which we want to
|
|
# execute if the rest of the kernel build went well.
|
|
zephyr: scripts/link-zephyr.sh $(zephyr-deps) $(KBUILD_ZEPHYR_APP) FORCE
|
|
@touch zephyr
|
|
ifdef CONFIG_HEADERS_CHECK
|
|
$(Q)$(MAKE) -f $(srctree)/Makefile headers_check
|
|
endif
|
|
|
|
ifneq ($(strip $(PROJECT)),)
|
|
+$(call if_changed,link-zephyr)
|
|
endif
|
|
|
|
# The actual objects are generated when descending,
|
|
# make sure no implicit rule kicks in
|
|
$(sort $(zephyr-deps)): $(zephyr-dirs) ;
|
|
|
|
# Handle descending into subdirectories listed in $(zephyr-dirs)
|
|
# Preset locale variables to speed up the build process. Limit locale
|
|
# tweaks to this spot to avoid wrong language settings when running
|
|
# make menuconfig etc.
|
|
# Error messages still appears in the original language
|
|
|
|
PHONY += $(zephyr-dirs)
|
|
$(zephyr-dirs): prepare scripts
|
|
$(Q)$(MAKE) $(build)=$@
|
|
|
|
# Things we need to do before we recursively start building the kernel
|
|
# or the modules are listed in "prepare".
|
|
# A multi level approach is used. prepareN is processed before prepareN-1.
|
|
# archprepare is used in arch Makefiles and when processed asm symlink,
|
|
# version.h and scripts_basic is processed / created.
|
|
|
|
# Listed in dependency order
|
|
PHONY += prepare prepare1 prepare2 prepare3
|
|
|
|
# prepare3 is used to check if we are building in a separate output directory,
|
|
# and if so do:
|
|
# 1) Check that make has not been executed in the kernel src $(srctree)
|
|
prepare3:
|
|
ifneq ($(KBUILD_SRC),)
|
|
@$(kecho) ' Using $(srctree) as source for kernel'
|
|
$(Q)if [ -f $(srctree)/.config ]; then \
|
|
echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
|
|
echo >&2 " in the '$(srctree)' directory.";\
|
|
/bin/false; \
|
|
fi;
|
|
endif
|
|
|
|
# prepare2 creates a makefile if using a separate output directory
|
|
prepare2: prepare3 outputmakefile
|
|
|
|
prepare1: prepare2 $(version_h) \
|
|
include/config/auto.conf
|
|
$(cmd_crmodverdir)
|
|
|
|
archprepare_common = $(strip \
|
|
archheaders archscripts prepare1 scripts_basic \
|
|
)
|
|
|
|
|
|
archprepare = $(strip \
|
|
$(archprepare_common) \
|
|
)
|
|
|
|
# All the preparing..
|
|
prepare: $(archprepare) FORCE
|
|
$(Q)$(MAKE) $(build)=.
|
|
|
|
# Generate some files
|
|
# ---------------------------------------------------------------------------
|
|
|
|
# KERNELRELEASE can change from a few different places, meaning version.h
|
|
# needs to be updated, so this check is forced on all builds
|
|
|
|
VERSION_MAJOR_HEX=$(shell printf '%02x\n' ${VERSION_MAJOR})
|
|
VERSION_MINOR_HEX=$(shell printf '%02x\n' ${VERSION_MINOR})
|
|
PATCHLEVEL_HEX=$(shell printf '%02x\n' ${PATCHLEVEL})
|
|
VERSION_RESERVED_HEX=00
|
|
KERNEL_VERSION_HEX=0x$(VERSION_MAJOR_HEX)$(VERSION_MINOR_HEX)$(PATCHLEVEL_HEX)
|
|
|
|
define filechk_version.h
|
|
(echo "#ifndef _KERNEL_VERSION_H_"; \
|
|
echo "#define _KERNEL_VERSION_H_"; \
|
|
echo ;\
|
|
(echo \#define ZEPHYR_VERSION_CODE $(shell \
|
|
expr $(VERSION_MAJOR) \* 65536 + 0$(VERSION_MINOR) \* 256 + 0$(PATCHLEVEL)); \
|
|
echo '#define ZEPHYR_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';); \
|
|
echo ;\
|
|
echo "#define KERNELVERSION \\"; \
|
|
echo "$(KERNEL_VERSION_HEX)$(VERSION_RESERVED_HEX)"; \
|
|
echo "#define KERNEL_VERSION_NUMBER $(KERNEL_VERSION_HEX)"; \
|
|
echo "#define KERNEL_VERSION_MAJOR $(VERSION_MAJOR)"; \
|
|
echo "#define KERNEL_VERSION_MINOR $(VERSION_MINOR)"; \
|
|
echo "#define KERNEL_PATCHLEVEL $(PATCHLEVEL)"; \
|
|
echo "#define KERNEL_VERSION_STRING \"$(KERNELVERSION)\""; \
|
|
echo; \
|
|
echo "#endif /* _KERNEL_VERSION_H_ */";)
|
|
endef
|
|
|
|
$(version_h): $(srctree)/Makefile FORCE
|
|
$(call filechk,version.h)
|
|
|
|
PHONY += headerdep
|
|
headerdep:
|
|
$(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \
|
|
$(srctree)/scripts/headerdep.pl -I$(srctree)/include
|
|
|
|
# ---------------------------------------------------------------------------
|
|
|
|
PHONY += depend dep
|
|
depend dep:
|
|
@echo '*** Warning: make $@ is unnecessary now.'
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# Kernel headers
|
|
|
|
#Default location for installed headers
|
|
export INSTALL_HDR_PATH = $(objtree)/usr
|
|
|
|
# If we do an all arch process set dst to asm-$(hdr-arch)
|
|
hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)
|
|
|
|
PHONY += archheaders
|
|
archheaders:
|
|
|
|
PHONY += archscripts
|
|
archscripts:
|
|
|
|
PHONY += __headers
|
|
__headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE
|
|
$(Q)$(MAKE) $(build)=scripts build_unifdef
|
|
|
|
PHONY += headers_install_all
|
|
headers_install_all:
|
|
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install
|
|
|
|
PHONY += headers_install
|
|
headers_install: __headers
|
|
$(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \
|
|
$(error Headers not exportable for the $(SRCARCH) architecture))
|
|
$(Q)$(MAKE) $(hdr-inst)=include/uapi
|
|
$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst)
|
|
|
|
PHONY += headers_check_all
|
|
headers_check_all: headers_install_all
|
|
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check
|
|
|
|
PHONY += headers_check
|
|
headers_check: headers_install
|
|
$(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
|
|
$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# Kernel selftest
|
|
|
|
PHONY += kselftest
|
|
kselftest:
|
|
$(Q)$(MAKE) -C tools/testing/selftests run_tests
|
|
|
|
|
|
###
|
|
# Cleaning is done on three levels.
|
|
# make clean Delete most generated files
|
|
# make mrproper Delete the current configuration, and all generated files
|
|
# make distclean Remove editor backup files, patch leftover files and the like
|
|
|
|
# Directories & files removed with 'make clean'
|
|
CLEAN_DIRS += $(MODVERDIR)
|
|
|
|
CLEAN_FILES += misc/generated/sysgen/kernel_main.c \
|
|
misc/generated/sysgen/zephyr.h \
|
|
misc/generated/sysgen/prj.mdef
|
|
|
|
# Directories & files removed with 'make mrproper'
|
|
MRPROPER_DIRS += include/config usr/include include/generated \
|
|
arch/*/include/generated .tmp_objdiff
|
|
MRPROPER_FILES += .config .config.old .version $(version_h) \
|
|
Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
|
|
signing_key.priv signing_key.x509 x509.genkey \
|
|
extra_certificates signing_key.x509.keyid \
|
|
signing_key.x509.signer
|
|
|
|
# clean - Delete most
|
|
#
|
|
clean: rm-dirs := $(CLEAN_DIRS)
|
|
clean: rm-files := $(CLEAN_FILES)
|
|
clean-dirs := $(addprefix _clean_, . $(zephyr-alldirs) )
|
|
|
|
PHONY += $(clean-dirs) clean archclean zephyrclean
|
|
$(clean-dirs):
|
|
$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
|
|
|
|
zephyrclean:
|
|
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-zephyr.sh clean
|
|
|
|
clean: archclean zephyrclean
|
|
|
|
# mrproper - Delete all generated files, including .config
|
|
#
|
|
mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
|
|
mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
|
|
mrproper-dirs := $(addprefix _mrproper_,scripts)
|
|
|
|
PHONY += $(mrproper-dirs) mrproper archmrproper
|
|
$(mrproper-dirs):
|
|
$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
|
|
|
|
mrproper: clean archmrproper $(mrproper-dirs)
|
|
$(call cmd,rmdirs)
|
|
$(call cmd,rmfiles)
|
|
|
|
# distclean
|
|
#
|
|
PHONY += distclean
|
|
|
|
distclean: mrproper
|
|
@find $(srctree) $(RCS_FIND_IGNORE) \
|
|
\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
|
|
-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
|
|
-o -name '.*.rej' -o -name '*%' -o -name 'core' \) \
|
|
-type f -print | xargs rm -f
|
|
|
|
# Brief documentation of the typical targets used
|
|
# ---------------------------------------------------------------------------
|
|
|
|
boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)
|
|
boards := $(sort $(notdir $(boards)))
|
|
board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))
|
|
board-dirs := $(sort $(notdir $(board-dirs:/=)))
|
|
|
|
help:
|
|
@echo 'Cleaning targets:'
|
|
@echo ' clean - Remove most generated files but keep configuration and backup files'
|
|
@echo ' mrproper - Remove all generated files + config + various backup files'
|
|
@echo ' distclean - mrproper + remove editor backup and patch files'
|
|
@echo ' pristine - Remove the output directory with all generated files'
|
|
@echo ''
|
|
@echo 'Configuration targets:'
|
|
@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
|
|
@echo ''
|
|
@echo 'Other generic targets:'
|
|
@echo ' all - Build all targets marked with [*]'
|
|
@echo '* zephyr - Build the bare kernel'
|
|
@echo ' qemu - Build the bare kernel and runs the emulation with qemu'
|
|
@echo ''
|
|
@echo 'Architecture specific targets ($(SRCARCH)):'
|
|
@$(if $(archhelp),$(archhelp),\
|
|
echo ' No architecture specific help defined for $(SRCARCH)')
|
|
@echo ''
|
|
@$(if $(boards), \
|
|
$(foreach b, $(boards), \
|
|
printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \
|
|
echo '')
|
|
@$(if $(board-dirs), \
|
|
$(foreach b, $(board-dirs), \
|
|
printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \
|
|
printf " %-16s - Show all of the above\\n" help-boards; \
|
|
echo '')
|
|
|
|
@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
|
|
@echo ' make V=2 [targets] 2 => give reason for rebuild of target'
|
|
@echo ' make O=dir [targets] Locate all output files in "dir", including .config'
|
|
@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
|
|
@echo ' make C=2 [targets] Force check of all c source with $$CHECK'
|
|
@echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
|
|
@echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
|
|
@echo ' 1: warnings which may be relevant and do not occur too often'
|
|
@echo ' 2: warnings which occur quite often but may still be relevant'
|
|
@echo ' 3: more obscure warnings, can most likely be ignored'
|
|
@echo ' Multiple levels can be combined with W=12 or W=123'
|
|
@echo ''
|
|
@echo 'Execute "make" or "make all" to build all targets marked with [*] '
|
|
|
|
|
|
help-board-dirs := $(addprefix help-,$(board-dirs))
|
|
|
|
help-boards: $(help-board-dirs)
|
|
|
|
boards-per-dir = $(sort $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)))
|
|
|
|
$(help-board-dirs): help-%:
|
|
@echo 'Architecture specific targets ($(SRCARCH) $*):'
|
|
@$(if $(boards-per-dir), \
|
|
$(foreach b, $(boards-per-dir), \
|
|
printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \
|
|
echo '')
|
|
|
|
|
|
# Documentation targets
|
|
# ---------------------------------------------------------------------------
|
|
%docs: FORCE
|
|
$(Q)$(MAKE) -C doc htmldocs
|
|
|
|
clean: $(clean-dirs)
|
|
$(call cmd,rmdirs)
|
|
$(call cmd,rmfiles)
|
|
@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
|
|
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
|
|
-o -name '*.ko.*' \
|
|
-o -name '*.dwo' \
|
|
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
|
|
-o -name '*.symtypes' \
|
|
-o -name modules.builtin -o -name '.tmp_*.o.*' \
|
|
-o -name '*.gcno' \) -type f -print | xargs rm -f
|
|
|
|
# Generate tags for editors
|
|
# ---------------------------------------------------------------------------
|
|
quiet_cmd_tags = GEN $@
|
|
cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@
|
|
|
|
tags TAGS cscope gtags: FORCE
|
|
$(call cmd,tags)
|
|
|
|
# Scripts to check various things for consistency
|
|
# ---------------------------------------------------------------------------
|
|
|
|
PHONY += includecheck versioncheck coccicheck namespacecheck export_report
|
|
|
|
includecheck:
|
|
find $(srctree)/* $(RCS_FIND_IGNORE) \
|
|
-name '*.[hcS]' -type f -print | sort \
|
|
| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl
|
|
|
|
versioncheck:
|
|
find $(srctree)/* $(RCS_FIND_IGNORE) \
|
|
-name '*.[hcS]' -type f -print | sort \
|
|
| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl
|
|
|
|
coccicheck:
|
|
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
|
|
|
|
namespacecheck:
|
|
$(PERL) $(srctree)/scripts/namespace.pl
|
|
|
|
export_report:
|
|
$(PERL) $(srctree)/scripts/export_report.pl
|
|
|
|
endif #ifeq ($(config-targets),1)
|
|
endif #ifeq ($(mixed-targets),1)
|
|
|
|
PHONY += checkstack kernelversion image_name
|
|
|
|
# UML needs a little special treatment here. It wants to use the host
|
|
# toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone
|
|
# else wants $(ARCH), including people doing cross-builds, which means
|
|
# that $(SUBARCH) doesn't work here.
|
|
ifeq ($(ARCH), um)
|
|
CHECKSTACK_ARCH := $(SUBARCH)
|
|
else
|
|
CHECKSTACK_ARCH := $(ARCH)
|
|
endif
|
|
checkstack:
|
|
$(OBJDUMP) -d zephyr $$(find . -name '*.ko') | \
|
|
$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
|
|
|
|
kernelversion:
|
|
@echo $(KERNELVERSION)
|
|
|
|
image_name:
|
|
@echo $(KBUILD_IMAGE)
|
|
|
|
# Clear a bunch of variables before executing the submake
|
|
tools/: FORCE
|
|
$(Q)mkdir -p $(objtree)/tools
|
|
$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/
|
|
|
|
tools/%: FORCE
|
|
$(Q)mkdir -p $(objtree)/tools
|
|
$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $*
|
|
|
|
QEMU_FLAGS = $(QEMU_FLAGS_$(SRCARCH)) -pidfile qemu.pid
|
|
|
|
ifneq ($(QEMU_PIPE),)
|
|
# Send console output to a pipe, used for running automated sanity tests
|
|
QEMU_FLAGS += -serial pipe:$(QEMU_PIPE)
|
|
else
|
|
QEMU_FLAGS += -serial mon:stdio
|
|
endif
|
|
|
|
qemu: zephyr
|
|
$(if $(QEMU_PIPE),,@echo "To exit from QEMU enter: 'CTRL+a, x'")
|
|
@echo '[QEMU] CPU: $(QEMU_CPU_TYPE_$(SRCARCH))'
|
|
$(Q)$(QEMU) $(QEMU_FLAGS) $(QEMU_EXTRA_FLAGS) -kernel $(KERNEL_NAME).elf
|
|
|
|
# Single targets
|
|
# ---------------------------------------------------------------------------
|
|
# Single targets are compatible with:
|
|
# - build with mixed source and output
|
|
# - build with separate output dir 'make O=...'
|
|
#
|
|
# target-dir => where to store outputfile
|
|
# build-dir => directory in kernel source tree to use
|
|
|
|
build-dir = $(patsubst %/,%,$(dir $@))
|
|
target-dir = $(dir $@)
|
|
|
|
%.s: %.c prepare scripts FORCE
|
|
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
|
|
%.i: %.c prepare scripts FORCE
|
|
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
|
|
%.o: %.c prepare scripts FORCE
|
|
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
|
|
%.lst: %.c prepare scripts FORCE
|
|
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
|
|
%.s: %.S prepare scripts FORCE
|
|
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
|
|
%.o: %.S prepare scripts FORCE
|
|
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
|
|
%.symtypes: %.c prepare scripts FORCE
|
|
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
|
|
|
|
# Modules
|
|
/: prepare scripts FORCE
|
|
$(cmd_crmodverdir)
|
|
$(Q)$(MAKE) $(build)=$(build-dir)
|
|
|
|
%/: prepare scripts FORCE
|
|
$(cmd_crmodverdir)
|
|
$(Q)$(MAKE) $(build)=$(build-dir)
|
|
|
|
# FIXME Should go into a make.lib or something
|
|
# ===========================================================================
|
|
|
|
quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
|
|
cmd_rmdirs = rm -rf $(rm-dirs)
|
|
|
|
quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
|
|
cmd_rmfiles = rm -f $(rm-files)
|
|
|
|
# read all saved command lines
|
|
|
|
targets := $(wildcard $(sort $(targets)))
|
|
cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
|
|
|
|
ifneq ($(cmd_files),)
|
|
$(cmd_files): ; # Do not try to update included dependency files
|
|
include $(cmd_files)
|
|
endif
|
|
|
|
endif # skip-makefile
|
|
|
|
PHONY += FORCE
|
|
FORCE:
|
|
|
|
# Declare the contents of the .PHONY variable as phony. We keep that
|
|
# information in a variable so we can use it in if_changed and friends.
|
|
.PHONY: $(PHONY)
|