334c14e66e
Detect the presence of CLFLUSH instruction and cache line size at runtime. It is still possible to set them manually via kconfig options if the values are known. Change-Id: I00bda1de4c5c241826ead6f43b887b99a963cc7b Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
87 lines
1.9 KiB
Makefile
87 lines
1.9 KiB
Makefile
# vim: filetype=make
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PROJECT_BASE ?= $(shell pwd)
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O ?= $(PROJECT_BASE)/outdir
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ARCH ?= x86
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# Turn O into an absolute path; we call the main Kbuild with $(MAKE) -C
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# which changes the working directory, relative paths don't work right.
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# Need to create the directory first to make readlink happy
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$(shell mkdir -p $(O))
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override O := $(shell readlink -f $(O))
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export ARCH MDEF_FILE QEMU_EXTRA_FLAGS PROJECT_BASE
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ifndef KERNEL_TYPE
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KERNEL_TYPE = micro
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endif
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ifdef PLATFORM_CONFIG
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KBUILD_DEFCONFIG_PATH=$(ZEPHYR_BASE)/arch/$(ARCH)/configs/$(PLATFORM_CONFIG)_defconfig
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export KBUILD_DEFCONFIG_PATH
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else
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$(error PLATFORM_CONFIG is not defined!)
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endif
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SOURCE_DIR ?= $(PROJECT_BASE)/src/
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# Kbuild doesn't work correctly if this is an absolute path
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# FIXME Do not depend on python
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override SOURCE_DIR := $(shell python -c "import os.path; print(\"%s\" % os.path.relpath(os.path.realpath('$(SOURCE_DIR)'), os.path.realpath('$(ZEPHYR_BASE)')))")/
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export SOURCE_DIR
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ifeq ("$(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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Q =
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S =
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else
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Q = @
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S = -s
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endif
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zephyrmake = @$(MAKE) -C $(ZEPHYR_BASE) O=$(1) CFLAGS="$(CFLAGS)" \
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PROJECT=$(PROJECT_BASE) SOURCE_DIR=$(SOURCE_DIR) $(2)
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DOTCONFIG = $(O)/.config
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all: $(DOTCONFIG)
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$(Q)$(call zephyrmake,$(O),$@)
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qemu: $(DOTCONFIG)
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$(Q)$(call zephyrmake,$(O),$@)
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initconfig: $(DOTCONFIG)
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menuconfig: initconfig
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$(Q)$(call zephyrmake,$(O),$@)
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# Catch all
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%:
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$(Q)$(call zephyrmake,$(O),$@)
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KERNEL_CONFIG = $(ZEPHYR_BASE)/kernel/configs/$(KERNEL_TYPE).config
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$(DOTCONFIG): $(KBUILD_DEFCONFIG_PATH) $(CONF_FILE)
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$(Q)$(CONFIG_SHELL) $(ZEPHYR_BASE)/scripts/kconfig/merge_config.sh \
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-q -m -O $(O) $(KBUILD_DEFCONFIG_PATH) $(KERNEL_CONFIG) $(CONF_FILE)
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$(Q)yes "" | $(MAKE) $(S) -C $(ZEPHYR_BASE) O=$(O) \
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PROJECT=$(PROJECT_BASE) oldconfig
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pristine:
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$(Q)rm -rf $(O)
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PHONY += FORCE initconfig
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FORCE:
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.PHONY: $(PHONY)
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