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# vim: filetype=make
PROJECT_BASE ?= $(shell pwd)
O ?= $(PROJECT_BASE)/outdir
ARCH ?= x86
# Turn O into an absolute path; we call the main Kbuild with $(MAKE) -C
# which changes the working directory, relative paths don't work right.
# Need to create the directory first to make readlink happy
$(shell mkdir -p $(O))
override O := $(shell readlink -f $(O))
export ARCH MDEF_FILE QEMU_EXTRA_FLAGS PROJECT_BASE
# FIXME: Simplify this, very ugly
ifdef PLATFORM_CONFIG
ifndef KERNEL_TYPE
$(error KERNEL_TYPE is not defined! Set it to either micro or nano)
endif
ifndef KBUILD_DEFCONFIG
KBUILD_DEFCONFIG=$(KERNEL_TYPE)_$(PLATFORM_CONFIG)_defconfig
KBUILD_DEFCONFIG_PATH=$(ZEPHYR_BASE)/arch/$(ARCH)/configs/$(KBUILD_DEFCONFIG)
else
KBUILD_DEFCONFIG_PATH=$(KBUILD_DEFCONFIG)
endif
export KBUILD_DEFCONFIG
endif
SOURCE_DIR ?= $(PROJECT_BASE)/src/
# Kbuild doesn't work correctly if this is an absolute path
# FIXME Do not depend on python
override SOURCE_DIR := $(shell python -c "import os.path; print(\"%s\" % os.path.relpath(os.path.realpath('$(SOURCE_DIR)'), os.path.realpath('$(ZEPHYR_BASE)')))")/
export SOURCE_DIR
ifeq ("$(origin V)", "command line")
KBUILD_VERBOSE = $(V)
endif
ifndef KBUILD_VERBOSE
KBUILD_VERBOSE = 0
endif
ifeq ($(KBUILD_VERBOSE),1)
Q =
S =
else
Q = @
S = -s
endif
zephyrmake = @$(MAKE) -C $(ZEPHYR_BASE) O=$(1) CFLAGS="$(CFLAGS)" \
PROJECT=$(PROJECT_BASE) SOURCE_DIR=$(SOURCE_DIR) $(2)
DOTCONFIG = $(O)/.config
all: $(DOTCONFIG)
$(Q)$(call zephyrmake,$(O),$@)
qemu: $(DOTCONFIG)
$(Q)$(call zephyrmake,$(O),$@)
# Catch all
%:
$(Q)$(call zephyrmake,$(O),$@)
$(DOTCONFIG): $(CONF_FILE)
$(Q)$(CONFIG_SHELL) $(ZEPHYR_BASE)/scripts/kconfig/merge_config.sh \
-q -m -O $(O) $(KBUILD_DEFCONFIG_PATH) $<
$(Q)yes "" | $(MAKE) $(S) -C $(ZEPHYR_BASE) O=$(O) \
PROJECT=$(PROJECT_BASE) oldconfig
pristine:
$(Q)rm -rf $(O)
PHONY += FORCE
FORCE:
.PHONY: $(PHONY)
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