esp-idf/components/bootloader/Makefile.projbuild
Angus Gratton 208e83def7 build system: Refactor component.mk to not need component_common.mk
New makefile component_wrapper.mk allows some variables to be set
before component.mk is evaluated. This properly fixes problems with
sdkconfig being hard to access in all phases of the build.

Including component_common.mk is no longer necessary and will print a
deprecation warning for components which use it.
2016-11-10 15:52:22 +11:00

50 lines
1.5 KiB
Makefile

#
# Bootloader component
#
# The bootloader is not a real component that gets linked into the project.
# Instead it is an entire standalone project ( in src/) that gets built in
# the upper projects build directory. This Makefile.projbuild provides the
# glue to build the bootloader project from the original project. It
# basically runs Make in the src/ directory but it needs to zero some variables
# the ESP-IDF project.mk makefile exports first, to not let them interfere.
#
ifndef IS_BOOTLOADER_BUILD
BOOTLOADER_COMPONENT_PATH := $(COMPONENT_PATH)
BOOTLOADER_BUILD_DIR=$(abspath $(BUILD_DIR_BASE)/bootloader)
BOOTLOADER_BIN=$(BOOTLOADER_BUILD_DIR)/bootloader.bin
# Custom recursive make for bootloader sub-project
BOOTLOADER_MAKE=+$(MAKE) -C $(BOOTLOADER_COMPONENT_PATH)/src \
V=$(V) BUILD_DIR_BASE=$(BOOTLOADER_BUILD_DIR) \
.PHONY: bootloader-clean bootloader-flash bootloader $(BOOTLOADER_BIN)
$(BOOTLOADER_BIN): $(SDKCONFIG_MAKEFILE)
$(Q) $(BOOTLOADER_MAKE) $@
bootloader-clean:
$(Q) $(BOOTLOADER_MAKE) app-clean
clean: bootloader-clean
bootloader: $(BOOTLOADER_BIN)
@echo "Bootloader built. Default flash command is:"
@echo "$(ESPTOOLPY_WRITE_FLASH) 0x1000 $^"
all_binaries: $(BOOTLOADER_BIN)
ESPTOOL_ALL_FLASH_ARGS += 0x1000 $(BOOTLOADER_BIN)
# bootloader-flash calls flash in the bootloader dummy project
bootloader-flash: $(BOOTLOADER_BIN)
$(ESPTOOLPY_WRITE_FLASH) 0x1000 $^
$(BOOTLOADER_BUILD_DIR):
$(Q) mkdir -p $@
else
CFLAGS += -D BOOTLOADER_BUILD=1 -I $(IDF_PATH)/components/esp32/include
endif