zephyr/Makefile.inc
Inaky Perez-Gonzalez 93ac1f7ac5 build: default ARCH to be initialized by the board support code
ARCH is defaulted to be x86. This makes it somehow impossible for later
the board code to set it properly when it needs to be evaluated in a
top level makefile for a project.

By undefining it, a lazy resolution is forced that works its way to
the proper Kconfig set by setting BOARD, which should be the ONLY
mandatory argument (to avoid things that will fail like BOARD=galileo
ARCH=arc).

Jira: ZEP-690
Change-Id: I5b10922eb4cdb559ab5fe354bc91c9ffb92f0ca8
Signed-off-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
2016-08-30 21:08:30 +00:00

148 lines
3.4 KiB
Makefile

# vim: filetype=make
#
UNAME := $(shell uname)
ifeq (MINGW, $(findstring MINGW, $(UNAME)))
DQUOTE = '
# '
PROJECT_BASE ?= $(shell sh -c "pwd -W")
else
DQUOTE = "
# "
PROJECT_BASE ?= $(CURDIR)
endif
ifdef BOARD
KBUILD_DEFCONFIG_PATH=$(wildcard $(ZEPHYR_BASE)/boards/*/$(BOARD)_defconfig)
ifeq ($(KBUILD_DEFCONFIG_PATH),)
$(error Board $(BOARD) not found!)
endif
else
$(error BOARD is not defined!)
endif
# Choose a default output directory if one wasn't supplied. Note that
# PRISTINE_O depends on whether this is default or not. If building
# in-tree, we want to remove the whole outdir and not just the BOARD
# specified (thus "pristine"). Out of tree, we can obviously remove
# only what we were told to build.
ifndef O
PRISTINE_O = outdir
O = $(PROJECT_BASE)/outdir/$(BOARD)
else
PRISTINE_O = $(O)
endif
# Turn O into an absolute path; we call the main Kbuild with $(MAKE) -C
# which changes the working directory, relative paths don't work right.
# Need to create the directory first to make realpath happy
ifneq ($(MAKECMDGOALS),help)
$(shell mkdir -p $(O))
override O := $(realpath $(O))
endif
export ARCH MDEF_FILE QEMU_EXTRA_FLAGS PROJECT_BASE
KERNEL_TYPE ?= micro
override CONF_FILE := $(strip $(subst $(DQUOTE),,$(CONF_FILE)))
SOURCE_DIR ?= $(PROJECT_BASE)/src/
override SOURCE_DIR := $(abspath $(SOURCE_DIR))
override SOURCE_DIR := $(subst \,/,$(SOURCE_DIR))
override SOURCE_DIR_PARENT := $(patsubst %, %/.., $(SOURCE_DIR))
override SOURCE_DIR_PARENT := $(abspath $(SOURCE_DIR_PARENT))
override SOURCE_DIR_PARENT := $(subst \,/,$(SOURCE_DIR_PARENT))
export SOURCE_DIR SOURCE_DIR_PARENT
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
export CFLAGS
zephyrmake = +$(MAKE) -C $(ZEPHYR_BASE) O=$(1) \
PROJECT=$(PROJECT_BASE) SOURCE_DIR=$(DQUOTE)$(SOURCE_DIR)$(DQUOTE) $(2)
BOARDCONFIG = $(O)/.board_$(BOARD)
DOTCONFIG = $(O)/.config
all: $(DOTCONFIG)
$(Q)$(call zephyrmake,$(O),$@)
ifeq ($(findstring qemu_,$(BOARD)),)
qemu:
@echo "Emulation not available for this platform"
qemugdb: qemu
else
qemu: $(DOTCONFIG)
$(Q)$(call zephyrmake,$(O),$@)
qemugdb: $(DOTCONFIG)
$(Q)$(call zephyrmake,$(O),$@)
endif
debug: $(DOTCONFIG)
$(Q)$(call zephyrmake,$(O),$@)
flash: $(DOTCONFIG)
$(Q)$(call zephyrmake,$(O),$@)
ifeq ($(MAKECMDGOALS),debugserver)
-include $(ZEPHYR_BASE)/boards/$(BOARD)/Makefile.board
-include $(ZEPHYR_BASE)/scripts/Makefile.toolchain.$(ZEPHYR_GCC_VARIANT)
BOARD_NAME = $(BOARD)
export BOARD_NAME
endif
debugserver: FORCE
$(Q)$(CONFIG_SHELL) $(ZEPHYR_BASE)/scripts/support/$(FLASH_SCRIPT) debugserver
initconfig: $(DOTCONFIG)
$(BOARDCONFIG):
@rm -f $(O)/.board_*
@touch $@
ram_report: initconfig
$(Q)$(call zephyrmake,$(O),$@)
rom_report: initconfig
$(Q)$(call zephyrmake,$(O),$@)
menuconfig: initconfig
$(Q)$(call zephyrmake,$(O),$@)
help:
$(Q)$(MAKE) -s -C $(ZEPHYR_BASE) $@
# Catch all
%:
$(Q)$(call zephyrmake,$(O),$@)
KERNEL_CONFIG = $(ZEPHYR_BASE)/kernel/configs/$(KERNEL_TYPE).config
$(DOTCONFIG): $(BOARDCONFIG) $(KBUILD_DEFCONFIG_PATH) $(CONF_FILE)
$(Q)$(CONFIG_SHELL) $(ZEPHYR_BASE)/scripts/kconfig/merge_config.sh \
-q -m -O $(O) $(KBUILD_DEFCONFIG_PATH) $(KERNEL_CONFIG) $(CONF_FILE)
$(Q)$(MAKE) $(S) -C $(ZEPHYR_BASE) O=$(O) PROJECT=$(PROJECT_BASE) oldnoconfig
pristine:
$(Q)rm -rf $(PRISTINE_O)
PHONY += FORCE initconfig
FORCE:
.PHONY: $(PHONY)