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zephyr/Makefile
Kumar Gala 8d35760fec board: organize boards based on architecture 
Introduce an architecture sorting of boards.  This is to allow for
easier maintenance going forward as the number of boards grows.  It
will be easier for any scripts to know the board/arch mapping without
having to maintain an explicit list of what boards are associated with
which arch.  We can also do things like have architecture maintainers
cover reviews and branches for arch/${ARCH} and boards/${ARCH} going
forward.

Change-Id: I02e0a30292b31fad58fb5dfab2682ad1c5a7d5a7
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2016-10-24 19:59:42 +00:00

1323 lines
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Makefile
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VERSION_MAJOR = 1
VERSION_MINOR = 5
PATCHLEVEL = 99
VERSION_RESERVED = 0
EXTRAVERSION =
NAME = Zephyr Kernel
export SOURCE_DIR PROJECT MDEF_FILE
ifeq ($(MAKECMDGOALS),)
$(error Invoking make from top-level kernel directory is not supported)
endif
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"
# More info can be located in ./README
# Comments in this file are targeted only to the developer, do not
# expect to learn how to build the kernel reading this file.
#
# o Do not use make's built-in rules and variables
# (this increases performance and avoids hard-to-debug behaviour);
# o Look for make include files relative to root of kernel src
MAKEFLAGS += -rR --include-dir=$(CURDIR)
UNAME := $(shell uname)
ifeq (MINGW, $(findstring MINGW, $(UNAME)))
HOST_OS=MINGW
PWD_OPT=-W
DISABLE_TRYRUN=y
CPATH ?= $(MIGW_DIR)/include
LIBRARY_PATH ?= $(MINGW_DIR)/lib
export CPATH LIBRARY_PATH
else ifeq (Linux, $(findstring Linux, $(UNAME)))
HOST_OS=Linux
else ifeq (Darwin, $(findstring Darwin, $(UNAME)))
HOST_OS=Darwin
endif
export HOST_OS
# Avoid funny character set dependencies
unexport LC_ALL
LC_COLLATE=C
LC_NUMERIC=C
export LC_COLLATE LC_NUMERIC
# Avoid interference with shell env settings
unexport GREP_OPTIONS
DQUOTE = "
#This comment line is to fix the highlighting of some editors due the quote effect."
export DQUOTE
# We are using a recursive build, so we need to do a little thinking
# to get the ordering right.
#
# Most importantly: sub-Makefiles should only ever modify files in
# their own directory. If in some directory we have a dependency on
# a file in another dir (which doesn't happen often, but it's often
# unavoidable when linking the built-in.o targets which finally
# turn into the kernel binary), we will call a sub make in that other
# dir, and after that we are sure that everything which is in that
# other dir is now up to date.
#
# The only cases where we need to modify files which have global
# effects are thus separated out and done before the recursive
# descending is started. They are now explicitly listed as the
# prepare rule.
# Beautify output
# ---------------------------------------------------------------------------
#
# Normally, we echo the whole command before executing it. By making
# that echo $($(quiet)$(cmd)), we now have the possibility to set
# $(quiet) to choose other forms of output instead, e.g.
#
# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
#
# If $(quiet) is empty, the whole command will be printed.
# If it is set to "quiet_", only the short version will be printed.
# If it is set to "silent_", nothing will be printed at all, since
# the variable $(silent_cmd_cc_o_c) doesn't exist.
#
# A simple variant is to prefix commands with $(Q) - that's useful
# for commands that shall be hidden in non-verbose mode.
#
# $(Q)ln $@ :<
#
# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
# If KBUILD_VERBOSE equals 1 then the above command is displayed.
#
# To put more focus on warnings, be less verbose as default
# Use 'make V=1' to see the full commands
ifeq ("$(origin V)", "command line")
KBUILD_VERBOSE = $(V)
endif
ifndef KBUILD_VERBOSE
KBUILD_VERBOSE = 0
endif
ifeq ($(KBUILD_VERBOSE),1)
quiet =
Q =
GENIDT_EXTRA_ARGS = -d
else
quiet=quiet_
Q = @
GENIDT_EXTRA_ARGS =
endif
# If the user is running make -s (silent mode), suppress echoing of
# commands
ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
quiet=silent_
endif
else # make-3.8x
ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
quiet=silent_
endif
endif
export quiet Q KBUILD_VERBOSE
# kbuild supports saving output files in a separate directory.
# To locate output files in a separate directory two syntaxes are supported.
# In both cases the working directory must be the root of the kernel src.
# 1) O=
# Use "make O=dir/to/store/output/files/"
#
# 2) Set KBUILD_OUTPUT
# Set the environment variable KBUILD_OUTPUT to point to the directory
# where the output files shall be placed.
# export KBUILD_OUTPUT=dir/to/store/output/files/
# make
#
# The O= assignment takes precedence over the KBUILD_OUTPUT environment
# variable.
# KBUILD_SRC is set on invocation of make in OBJ directory
# KBUILD_SRC is not intended to be used by the regular user (for now)
ifeq ($(KBUILD_SRC),)
# OK, Make called in directory where kernel src resides
# Do we want to locate output files in a separate directory?
ifeq ("$(origin O)", "command line")
KBUILD_OUTPUT := $(O)
endif
# That's our default target when none is given on the command line
PHONY := _all
_all:
# Cancel implicit rules on top Makefile
$(CURDIR)/Makefile Makefile: ;
ifneq ($(KBUILD_OUTPUT),)
# Invoke a second make in the output directory, passing relevant variables
# check that the output directory actually exists
saved-output := $(KBUILD_OUTPUT)
KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
&& pwd $(PWD_OPT))
$(if $(KBUILD_OUTPUT),, \
$(error failed to create output directory "$(saved-output)"))
PHONY += $(MAKECMDGOALS) sub-make
$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
@:
sub-make: FORCE
$(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
-f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
# Leave processing to above invocation of make
skip-makefile := 1
endif # ifneq ($(KBUILD_OUTPUT),)
endif # ifeq ($(KBUILD_SRC),)
# We process the rest of the Makefile if this is the final invocation of make
ifeq ($(skip-makefile),)
# Do not print "Entering directory ...",
# but we want to display it when entering to the output directory
# so that IDEs/editors are able to understand relative filenames.
MAKEFLAGS += --no-print-directory
# Call a source code checker (by default, "sparse") as part of the
# C compilation.
#
# Use 'make C=1' to enable checking of only re-compiled files.
# Use 'make C=2' to enable checking of *all* source files, regardless
# of whether they are re-compiled or not.
#
ifeq ("$(origin C)", "command line")
KBUILD_CHECKSRC = $(C)
endif
ifndef KBUILD_CHECKSRC
KBUILD_CHECKSRC = 0
endif
PHONY += all
_all: all
ifeq ($(KBUILD_SRC),)
# building in the source tree
srctree := .
else
ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
# building in a subdirectory of the source tree
srctree := ..
else
srctree := $(KBUILD_SRC)
endif
endif
objtree := .
src := $(srctree)
obj := $(objtree)
VPATH := $(SOURCE_DIR_PARENT) $(srctree)
export srctree objtree VPATH
# SUBARCH tells the usermode build what the underlying arch is. That is set
# first, and if a usermode build is happening, the "ARCH=um" on the command
# line overrides the setting of ARCH below. If a native build is happening,
# then ARCH is assigned, getting whatever value it gets normally, and
# SUBARCH is subsequently ignored.
SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
-e s/sun4u/sparc64/ \
-e s/arm.*/arm/ -e s/sa110/arm/ \
-e s/s390x/s390/ -e s/parisc64/parisc/ \
-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
-e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
# Cross compiling and selecting different set of gcc/bin-utils
# ---------------------------------------------------------------------------
#
# When performing cross compilation for other architectures ARCH shall be set
# to the target architecture. (See arch/* for the possibilities).
# ARCH can be set during invocation of make:
# make ARCH=x86
# Another way is to have ARCH set in the environment.
# The default ARCH is the host where make is executed.
# CROSS_COMPILE specify the prefix used for all executables used
# during compilation. Only gcc and related bin-utils executables
# are prefixed with $(CROSS_COMPILE).
# CROSS_COMPILE can be set on the command line
# make CROSS_COMPILE=i586-pc-elf
# Alternatively CROSS_COMPILE can be set in the environment.
# A third alternative is to store a setting in .config so that plain
# "make" in the configured kernel build directory always uses that.
# Default value for CROSS_COMPILE is not to prefix executables
# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
ARCH ?= $(SUBARCH)
CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%)
KCONFIG_CONFIG ?= .config
export KCONFIG_CONFIG
# SHELL used by kbuild
CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
else if [ -x /bin/bash ]; then echo /bin/bash; \
else echo sh; fi ; fi)
HOSTCC ?= gcc
HOSTCXX ?= g++
HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89
HOSTCXXFLAGS = -O2
ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \
-Wno-missing-field-initializers -fno-delete-null-pointer-checks
endif
# Decide whether to build built-in, modular, or both.
# Normally, just do built-in.
KBUILD_BUILTIN := 1
export KBUILD_BUILTIN
export KBUILD_CHECKSRC KBUILD_SRC
# Look for make include files relative to root of kernel src
MAKEFLAGS += --include-dir=$(srctree)
# We need some generic definitions (do not try to remake the file).
$(srctree)/scripts/Kbuild.include: ;
include $(srctree)/scripts/Kbuild.include
ifeq ($(USE_CCACHE),1)
CCACHE := ccache
endif
# Make variables (CC, etc...)
AS = $(CROSS_COMPILE)as
LD = $(CROSS_COMPILE)ld
ifeq ($(USE_CCACHE),1)
CC = $(CCACHE) $(CROSS_COMPILE)gcc
CXX = $(CCACHE) $(CROSS_COMPILE)g++
else
CC ?= $(CROSS_COMPILE)gcc
CXX ?= $(CROSS_COMPILE)g++
endif
CPP = $(CC) -E
AR = $(CROSS_COMPILE)ar
NM = $(CROSS_COMPILE)nm
STRIP = $(CROSS_COMPILE)strip
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJDUMP = $(CROSS_COMPILE)objdump
GDB = $(CROSS_COMPILE)gdb
READELF = $(CROSS_COMPILE)readelf
AWK = awk
GENIDT = scripts/gen_idt/gen_idt
GENOFFSET_H = scripts/gen_offset_header/gen_offset_header
PERL = perl
PYTHON = python
CHECK = sparse
CHECKFLAGS := -Wbitwise -Wno-return-void $(CF)
CFLAGS_GCOV = -fprofile-arcs -ftest-coverage
ifeq ($(COMPILER),clang)
ifneq ($(CROSS_COMPILE),)
CLANG_TARGET := -target $(notdir $(CROSS_COMPILE:%-=%))
GCC_TOOLCHAIN := $(dir $(CROSS_COMPILE))
endif
ifneq ($(GCC_TOOLCHAIN),)
CLANG_GCC_TC := -gcc-toolchain $(GCC_TOOLCHAIN)
endif
ifneq ($(IA),1)
CLANG_IA_FLAG = -no-integrated-as
endif
CLANG_FLAGS := $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_IA_FLAG)
endif
# Use USERINCLUDE when you must reference the UAPI directories only.
USERINCLUDE := -include $(CURDIR)/include/generated/autoconf.h
SOC_NAME = $(subst $(DQUOTE),,$(CONFIG_SOC))
SOC_SERIES = $(subst $(DQUOTE),,$(CONFIG_SOC_SERIES))
SOC_FAMILY = $(subst $(DQUOTE),,$(CONFIG_SOC_FAMILY))
override ARCH = $(subst $(DQUOTE),,$(CONFIG_ARCH))
BOARD_NAME = $(subst $(DQUOTE),,$(CONFIG_BOARD))
KERNEL_NAME = $(subst $(DQUOTE),,$(CONFIG_KERNEL_BIN_NAME))
KERNEL_ELF_NAME = $(KERNEL_NAME).elf
KERNEL_BIN_NAME = $(KERNEL_NAME).bin
KERNEL_HEX_NAME = $(KERNEL_NAME).hex
KERNEL_STAT_NAME = $(KERNEL_NAME).stat
export SOC_FAMILY SOC_SERIES SOC_PATH SOC_NAME BOARD_NAME
export ARCH KERNEL_NAME KERNEL_ELF_NAME KERNEL_BIN_NAME KERNEL_HEX_NAME
# Use ZEPHYRINCLUDE when you must reference the include/ directory.
# Needed to be compatible with the O= option
ZEPHYRINCLUDE = \
-I$(srctree)/arch/$(ARCH)/include \
-I$(srctree)/arch/$(ARCH)/soc/$(SOC_PATH) \
-I$(srctree)/boards/$(ARCH)/$(BOARD_NAME) \
$(if $(KBUILD_SRC), -I$(srctree)/include) \
-I$(srctree)/include \
-I$(CURDIR)/include/generated \
-I$(CURDIR)/misc/generated/sysgen \
$(USERINCLUDE) \
$(STDINCLUDE)
KBUILD_CPPFLAGS := -DKERNEL
KBUILD_CFLAGS := -c -g -std=c99 \
-fno-asynchronous-unwind-tables \
-Wall \
-Wno-format-zero-length \
-Wno-main -ffreestanding
KBUILD_CXXFLAGS := -c -g -std=c++11 \
-fno-reorder-functions \
-fno-asynchronous-unwind-tables \
-fcheck-new \
-fno-defer-pop -Wall \
-Wno-unused-but-set-variable \
-Wno-format-zero-length \
-Wno-main -ffreestanding \
-ffunction-sections -fdata-sections \
-fno-rtti -fno-exceptions
KBUILD_AFLAGS := -c -g -xassembler-with-cpp
LDFLAGS += $(call ld-option,-nostartfiles)
LDFLAGS += $(call ld-option,-nodefaultlibs)
LDFLAGS += $(call ld-option,-nostdlib)
LDFLAGS += $(call ld-option,-static)
KERNELVERSION = $(VERSION_MAJOR)$(if $(VERSION_MINOR),.$(VERSION_MINOR)$(if $(PATCHLEVEL),.$(PATCHLEVEL)))$(EXTRAVERSION)
exports += VERSION_MAJOR VERSION_MINOR PATCHLEVEL VERSION_RESERVED EXTRAVERSION
exports += KERNELRELEASE KERNELVERSION
exports += ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC CXX
exports += CPP AR NM STRIP OBJCOPY OBJDUMP GDB
exports += MAKE AWK INSTALLKERNEL PERL PYTHON GENIDT GENOFFSET_H
exports += HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS
exports += KBUILD_CPPFLAGS NOSTDINC_FLAGS ZEPHYRINCLUDE OBJCOPYFLAGS LDFLAGS
exports += KBUILD_CFLAGS KBUILD_CXXFLAGS CFLAGS_GCOV KBUILD_AFLAGS AFLAGS_KERNEL
exports += KBUILD_ARFLAGS
# Push the exports to sub-processes
export $(exports)
# Make the exports available to third-party build systems
PHONY += outputexports
outputexports: Makefile.export
Makefile.export: include/config/auto.conf FORCE
$(call filechk,Makefile.export)
define filechk_Makefile.export
(echo "# file is auto-generated, do not modify !"; \
echo "BOARD=$(BOARD)"; \
echo; \
$(foreach e,$(exports),echo $(e)=$($e);) echo; \
echo "include $(O)/.config";)
endef
# Files to ignore in find ... statements
export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
-name CVS -o -name .pc -o -name .hg -o -name .git \) \
-prune -o
export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
--exclude CVS --exclude .pc --exclude .hg --exclude .git
# ===========================================================================
# Rules shared between *config targets and build targets
# Basic helpers built in scripts/
PHONY += scripts_basic
scripts_basic:
$(Q)$(MAKE) $(build)=scripts/basic
$(Q)$(MAKE) $(build)=scripts/gen_idt
$(Q)$(MAKE) $(build)=scripts/gen_offset_header
# To avoid any implicit rule to kick in, define an empty command.
scripts/basic/%: scripts_basic ;
PHONY += outputmakefile
# outputmakefile generates a Makefile in the output directory, if using a
# separate output directory. This allows convenient use of make in the
# output directory.
outputmakefile:
ifneq ($(KBUILD_SRC),)
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
$(srctree) $(objtree) $(VERSION_MAJOR) $(VERSION_MINOR)
endif
# 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).
version_h := include/generated/version.h
no-dot-config-targets := pristine distclean clean mrproper help kconfig-help \
cscope gtags TAGS tags help% %docs check% \
$(version_h) headers_% kernelversion %src-pkg
config-targets := 0
mixed-targets := 0
dot-config := 1
ifneq ($(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 $(srctree)/arch/$(subst $(DQUOTE),,$(CONFIG_ARCH))/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) $(build)=$(@)
# arch/ must be last here so that .gnu.linkonce magic for interrupts/exceptions
# works as expected
ifneq ($(strip $(MAKEFILE_APP_DIR)),)
MAKEFILE_APP := $(realpath $(MAKEFILE_APP_DIR)/Makefile.app)
endif
ifneq ($(strip $(PROJECT)),)
ifneq ($(strip $(MAKEFILE_APP)), )
include $(MAKEFILE_APP)
else
-include $(PROJECT)/Makefile.app
endif
ifneq ($(strip $(KBUILD_ZEPHYR_APP)),)
export KBUILD_ZEPHYR_APP
endif
app-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 # $(dot-config)
# Unified kernel objects are built as a static library
ifeq ($(CONFIG_KERNEL_V2),y)
libs-y := kernel/unified/
core-y := lib/ misc/ net/ boards/ ext/ usb/ fs/ tests/ arch/
else
core-y := lib/ kernel/ misc/ net/ boards/ ext/ usb/ fs/ tests/ arch/
endif
drivers-y := drivers/
ARCH = $(subst $(DQUOTE),,$(CONFIG_ARCH))
export ARCH
ifdef ZEPHYR_GCC_VARIANT
include $(srctree)/scripts/Makefile.toolchain.$(ZEPHYR_GCC_VARIANT)
else
$(if $(CROSS_COMPILE),, \
$(error ZEPHYR_GCC_VARIANT is not set. ))
endif
-include $(srctree)/ext/Makefile
-include $(srctree)/lib/Makefile
ifneq ($(CC),)
ifeq ($(shell $(CC) -v 2>&1 | grep -Ec "clang version|icx version"), 1)
COMPILER := clang
else
COMPILER := gcc
endif
export COMPILER
endif
# 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,) \
$(call cc-option,-fno-partial-inlining)
endif
ifeq ($(CONFIG_DEBUG),y)
KBUILD_CFLAGS += -Og
else
KBUILD_CFLAGS += -Os
endif
ifeq ($(CONFIG_STACK_CANARIES),y)
KBUILD_CFLAGS += $(call cc-option,-fstack-protector-all,)
else
KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector,)
endif
ifeq ($(CONFIG_OMIT_FRAME_POINTER),y)
fp_arg := $(call cc-option,-fomit-frame-pointer,)
else
fp_arg := $(call cc-option,-fno-omit-frame-pointer,)
endif
KBUILD_CFLAGS += $(fp_arg)
KBUILD_CXXFLAGS += $(fp_arg)
KBUILD_CFLAGS += $(subst $(DQUOTE),,$(CONFIG_COMPILER_OPT))
export LDFLAG_LINKERCMD
ifeq ($(SOC_SERIES),)
SOC_PATH = $(SOC_NAME)
else
SOC_PATH = $(SOC_FAMILY)/$(SOC_SERIES)
endif
include arch/$(ARCH)/Makefile
KBUILD_CFLAGS += $(CFLAGS)
KBUILD_CXXFLAGS += $(CXXFLAGS)
KBUILD_AFLAGS += $(CFLAGS)
ifeq ($(COMPILER),clang)
KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable)
KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
# Quiet clang warning: comparison of unsigned expression < 0 is always false
KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
else
# This warning generated too much noise in a regular build.
# Use make W=1 to enable this warning (see scripts/Makefile.build)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
KBUILD_CFLAGS += $(call cc-option,-fno-reorder-functions)
KBUILD_CFLAGS += $(call cc-option,-fno-defer-pop)
endif
# 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)
NOSTDINC_FLAGS += -isystem $(shell $(CC) -print-file-name=include-fixed)
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.
ifdef CONFIG_STACK_USAGE
KBUILD_CFLAGS += $(call cc-option,-fstack-usage)
endif
# 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.
LINKFLAGPREFIX ?= -Wl,
LDFLAGS_zephyr += $(LDFLAGS)
LDFLAGS_zephyr += $(call cc-ldoption,$(LINKFLAGPREFIX)-X)
LDFLAGS_zephyr += $(call cc-ldoption,$(LINKFLAGPREFIX)-N)
LDFLAGS_zephyr += $(call cc-ldoption,$(LINKFLAGPREFIX)--gc-sections)
LDFLAGS_zephyr += $(call cc-ldoption,$(LINKFLAGPREFIX)--build-id=none)
LD_TOOLCHAIN ?= -D__GCC_LINKER_CMD__
ifdef CONFIG_HAVE_CUSTOM_LINKER_SCRIPT
KBUILD_LDS := $(subst $(DQUOTE),,$(PROJECT_BASE)/$(CONFIG_CUSTOM_LINKER_SCRIPT))
ifeq ($(wildcard $(KBUILD_LDS)),)
KBUILD_LDS := $(subst $(DQUOTE),,$(CONFIG_CUSTOM_LINKER_SCRIPT))
endif
else
# Try a board specific linker file
KBUILD_LDS := $(srctree)/boards/$(ARCH)/$(BOARD_NAME)/linker.ld
# If not available, try an SoC specific linker file
ifeq ($(wildcard $(KBUILD_LDS)),)
KBUILD_LDS := $(srctree)/arch/$(ARCH)/soc/$(SOC_PATH)/linker.ld
endif
endif
export LD_TOOLCHAIN KBUILD_LDS
ifdef MAKEFILE_TOOLCHAIN_DO_PASS2
# KBUILD_CFLAGS known at this point.
# We can now determine which multilib libraries to use
include $(srctree)/scripts/Makefile.toolchain.$(ZEPHYR_GCC_VARIANT)
endif
QEMU = $(addsuffix /,$(QEMU_BIN_PATH))$(QEMU_$(ARCH))
# 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: $(KERNEL_BIN_NAME) $(KERNEL_STAT_NAME)
# Default kernel image to build when no specific target is given.
# KBUILD_IMAGE may be overruled on the command line or
# set in the environment
# Also any assignments in arch/$(ARCH)/Makefile take precedence over
# this default value
export KBUILD_IMAGE ?= zephyr
zephyr-dirs := $(patsubst %/,%,$(filter %/, $(core-y) $(drivers-y) \
$(libs-y)))
# Workaround for some make notdir implementations that require
# the paramenter not to end in "/".
zephyr-app-dir-root-name := $(patsubst %/,%, $(SOURCE_DIR))
zephyr-app-dir-root := $(abspath $(patsubst %, %/.., $(SOURCE_DIR)))
zephyr-alldirs := $(sort $(zephyr-dirs) $(SOURCE_DIR) $(patsubst %/,%,$(filter %/, \
$(core-) $(drivers-) $(libs-) $(app-))))
core-y := $(patsubst %/, %/built-in.o, $(core-y))
app-y := $(patsubst %, %/built-in.o, $(notdir $(zephyr-app-dir-root-name)))
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)
# core-y must be last here. several arches use .gnu.linkonce magic
# to register interrupt or exception handlers, and defaults under
# arch/ (part of core-y) must be linked after drivers or libs.
export KBUILD_ZEPHYR_MAIN := $(drivers-y) $(libs-y) $(core-y)
export LDFLAGS_zephyr
zephyr-deps := $(KBUILD_LDS) $(KBUILD_ZEPHYR_MAIN) $(app-y)
ALL_LIBS += $(TOOLCHAIN_LIBS)
export ALL_LIBS
LINK_LIBS := $(foreach l,$(ALL_LIBS), -l$(l))
OUTPUT_FORMAT ?= elf32-i386
OUTPUT_ARCH ?= i386
quiet_cmd_ar_target = AR $@
# Do not put lib.a into libzephyr.a. lib.a files are to be linked separately to
# the final image
cmd_ar_target = rm -f $@; $(AR) rcT$(KBUILD_ARFLAGS) $@ \
$(filter-out %/lib.a, $(KBUILD_ZEPHYR_MAIN))
libzephyr.a: $(zephyr-deps)
$(call cmd,ar_target)
quiet_cmd_create-lnk = LINK $@
cmd_create-lnk = \
( \
echo $(LDFLAGS_zephyr); \
echo "$(LINKFLAGPREFIX)-Map=$(KERNEL_NAME).map"; \
echo "-L $(objtree)/include/generated"; \
echo "-u _OffsetAbsSyms -u _ConfigAbsSyms"; \
echo "-e __start"; \
echo "$(LINKFLAGPREFIX)--start-group"; \
echo "$(LINKFLAGPREFIX)--whole-archive"; \
echo "$(KBUILD_ZEPHYR_APP)"; \
echo "$(app-y)"; \
echo "libzephyr.a"; \
echo "$(LINKFLAGPREFIX)--no-whole-archive"; \
echo "$(filter %/lib.a, $(KBUILD_ZEPHYR_MAIN))"; \
echo "$(objtree)/arch/$(ARCH)/core/offsets/offsets.o"; \
echo "$(LINKFLAGPREFIX)--end-group"; \
echo "$(LIB_INCLUDE_DIR) $(LINK_LIBS)"; \
) > $@
$(KERNEL_NAME).lnk: $(zephyr-deps)
$(call cmd,create-lnk)
linker.cmd: $(zephyr-deps)
$(Q)$(CC) -x assembler-with-cpp -nostdinc -undef -E -P \
$(LDFLAG_LINKERCMD) $(LD_TOOLCHAIN) -I$(srctree)/include \
-I$(objtree)/include/generated $(EXTRA_LINKER_CMD_OPT) $(KBUILD_LDS) -o $@
TMP_ELF = .tmp_$(KERNEL_NAME).prebuilt
$(TMP_ELF): $(zephyr-deps) libzephyr.a $(KBUILD_ZEPHYR_APP) $(app-y) linker.cmd $(KERNEL_NAME).lnk
$(Q)$(CC) -T linker.cmd @$(KERNEL_NAME).lnk -o $@
quiet_cmd_gen_idt = SIDT $@
cmd_gen_idt = \
( \
$(OBJCOPY) -I $(OUTPUT_FORMAT) -O binary -j intList $< isrList.bin && \
$(GENIDT) -i isrList.bin -n $(CONFIG_IDT_NUM_VECTORS) -o staticIdt.bin \
-m irq_int_vector_map.bin \
-l $(CONFIG_MAX_IRQ_LINES) $(GENIDT_EXTRA_ARGS) && \
$(OBJCOPY) -I binary -B $(OUTPUT_ARCH) -O $(OUTPUT_FORMAT) \
--rename-section .data=staticIdt staticIdt.bin staticIdt.o && \
$(OBJCOPY) -I binary -B $(OUTPUT_ARCH) -O $(OUTPUT_FORMAT) \
--rename-section .data=irq_int_vector_map irq_int_vector_map.bin \
irq_int_vector_map.o && \
rm staticIdt.bin irq_int_vector_map.bin isrList.bin \
)
staticIdt.o: $(TMP_ELF)
$(call cmd,gen_idt)
quiet_cmd_lnk_elf = LINK $@
cmd_lnk_elf = \
( \
$(CC) -T linker.cmd @$(KERNEL_NAME).lnk staticIdt.o \
irq_int_vector_map.o -o $@; \
${OBJCOPY} --change-section-address intList=${CONFIG_PHYS_LOAD_ADDR} $@ elf.tmp;\
$(OBJCOPY) -R intList elf.tmp $@; \
rm elf.tmp \
)
ASSERT_WARNING_STR := \
"\n ------------------------------------------------------------" \
"\n --- WARNING: __ASSERT() statements are globally ENABLED ---" \
"\n --- The kernel will run more slowly and uses more memory ---" \
"\n ------------------------------------------------------------\n\n" \
WARN_ABOUT_ASSERT := $(if $(CONFIG_ASSERT),echo -e -n $(ASSERT_WARNING_STR),true)
ifeq ($(ARCH),x86)
$(KERNEL_ELF_NAME): staticIdt.o linker.cmd
$(call cmd,lnk_elf)
@$(srctree)/scripts/check_link_map.py $(KERNEL_NAME).map
@$(WARN_ABOUT_ASSERT)
else
$(KERNEL_ELF_NAME): $(TMP_ELF)
@cp $(TMP_ELF) $(KERNEL_ELF_NAME)
@$(WARN_ABOUT_ASSERT)
endif
quiet_cmd_gen_bin = BIN $@
cmd_gen_bin = \
( \
$(OBJDUMP) -S $< > $(KERNEL_NAME).lst; \
$(OBJCOPY) -S -O binary -R .note -R .comment -R COMMON -R .eh_frame $< $@; \
$(STRIP) -s -o $(KERNEL_NAME).strip $<; \
)
$(KERNEL_BIN_NAME): $(KERNEL_ELF_NAME)
$(call cmd,gen_bin)
quiet_cmd_gen_hex = HEX $@
cmd_gen_hex = \
( \
$(OBJCOPY) -S -O ihex -R .note -R .comment -R COMMON -R .eh_frame $< $@; \
)
$(KERNEL_HEX_NAME): $(KERNEL_ELF_NAME)
$(call cmd,gen_hex)
$(KERNEL_STAT_NAME): $(KERNEL_BIN_NAME) $(KERNEL_ELF_NAME)
@$(READELF) -e $(KERNEL_ELF_NAME) > $@
ram_report: $(KERNEL_STAT_NAME)
@$(srctree)/scripts/size_report -r -o $(O)
rom_report: $(KERNEL_STAT_NAME)
@$(srctree)/scripts/size_report -F -o $(O)
zephyr: $(zephyr-deps) $(KERNEL_BIN_NAME)
# The actual objects are generated when descending,
# make sure no implicit rule kicks in
$(sort $(zephyr-deps)): $(zephyr-dirs) zephyr-app-dir ;
# 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) $(build)=$@
PHONY += zephyr-app-dir
zephyr-app-dir: prepare scripts
$(Q)$(MAKE) $(build)=$(notdir $(zephyr-app-dir-root-name)) \
srctree=$(zephyr-app-dir-root)
# 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
archprepare_common = $(strip \
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.'
###
# 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/sysgen.h \
misc/generated/sysgen/prj.mdef \
misc/generated/sysgen/micro_private_types.h \
misc/generated/sysgen/kernel_main.h \
.old_version .tmp_System.map .tmp_version \
.tmp_* System.map *.lnk *.map *.elf *.lst \
*.bin *.hex *.stat *.strip staticIdt.o linker.cmd
# 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-target clean archclean zephyrclean
clean-dirs-target:
$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$(clean-dirs))
clean: archclean
# 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)/boards/*/*/*_defconfig)
boards := $(sort $(notdir $(boards)))
kconfig-help:
@echo 'Configuration targets:'
@echo ''
@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
@echo ''
help:
@echo 'Cleaning targets:'
@echo ' clean - Remove most generated files but keep configuration and backup files'
@echo ' mrproper - Remove all generated files + config + various backup files'
@echo ' distclean - mrproper + remove editor backup and patch files'
@echo ' pristine - Remove the output directory with all generated files'
@echo ''
@echo 'Configuration targets:'
@echo ''
@echo ' run <make kconfig-help>'
@echo ''
@echo 'Other generic targets:'
@echo ' all - Build all targets marked with [*]'
@echo '* zephyr - Build a zephyr application'
@echo ' qemu - Build a zephyr application and run it in qemu'
@echo ' qemugdb - Same as 'qemu' but start a GDB server on port 1234'
@echo ' flash - Build and flash an application'
@echo ' debug - Build and debug an application using GDB'
@echo ' ram_report - Build and create RAM usage report'
@echo ' rom_report - Build and create ROM usage report'
@echo ''
@echo 'Supported Boards:'
@echo ''
@echo ' To build an image for one of the supported boards below, run:'
@echo ''
@echo ' make BOARD=<BOARD NAME>'
@echo ' in the application directory.'
@echo ''
@echo ' To flash the image (if supported), run:'
@echo ''
@echo ' make BOARD=<BOARD NAME> flash'
@echo ''
@$(if $(boards), \
$(foreach b, $(boards), \
printf " make BOARD=%-24s - Build for %s\\n" $(subst _defconfig,,$(b)) $(subst _defconfig,,$(b));) \
echo '')
@echo ''
@echo 'Build flags:'
@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 $(srctree)/boards/*/$*/*_defconfig)))
$(help-board-dirs): help-%:
@echo 'Architecture specific targets ($(ARCH) $*):'
@$(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-target
$(call cmd,rmdirs)
$(call cmd,rmfiles)
@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
\( -name '*.[oas]' -o -name '.*.cmd' \
-o -name '*.dwo' -o -name '.*.d' -o -name '.*.tmp' \
-o -name '.tmp_*.o.*' -o -name '*.gcno' \) -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
$(call cmd,tags)
endif #ifeq ($(config-targets),1)
endif #ifeq ($(mixed-targets),1)
PHONY += checkstack kernelversion image_name
CHECKSTACK_ARCH := $(ARCH)
checkstack:
$(OBJDUMP) -d $(O)/$(KERNEL_ELF_NAME) | \
$(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 = $(QEMU_FLAGS_$(ARCH)) -pidfile qemu.pid
ifneq ($(QEMU_PTY),)
QEMU_FLAGS += -serial pty
else
ifneq ($(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
endif
qemu: zephyr
$(if $(QEMU_PIPE),,@echo "To exit from QEMU enter: 'CTRL+a, x'")
@echo '[QEMU] CPU: $(QEMU_CPU_TYPE_$(ARCH))'
$(if $(CONFIG_X86_IAMCU),python $(ZEPHYR_BASE)/scripts/qemu-machine-hack.py $(KERNEL_ELF_NAME))
$(Q)$(QEMU) $(QEMU_FLAGS) $(QEMU_EXTRA_FLAGS) -kernel $(KERNEL_ELF_NAME)
qemugdb: QEMU_EXTRA_FLAGS += -s -S
qemugdb: qemu
-include $(srctree)/boards/$(ARCH)/$(BOARD_NAME)/Makefile.board
ifneq ($(FLASH_SCRIPT),)
flash: zephyr
@echo "Flashing $(BOARD_NAME)"
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/support/$(FLASH_SCRIPT) flash
debug: zephyr
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/support/$(FLASH_SCRIPT) debug
else
flash: FORCE
@echo Flashing not supported with this board.
@echo Please check the documentation for alternate instructions.
debug: FORCE
@echo Debugging not supported with this board.
@echo Please check the documentation for alternate instructions.
endif
# 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 $@)
%.o: %.cpp prepare scripts FORCE
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
%.o: %.cxx 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
$(Q)$(MAKE) $(build)=$(build-dir)
%/: prepare scripts FORCE
$(Q)$(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)
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