# # Main bootloader Makefile. # # This is basically the same as a component makefile, but in the case of the bootloader # we pull in bootloader-specific linker arguments. # LINKER_SCRIPTS := \ esp32.bootloader.ld \ $(IDF_PATH)/components/esp32/ld/esp32.rom.ld \ esp32.bootloader.rom.ld COMPONENT_ADD_LDFLAGS := -L $(COMPONENT_PATH) -lmain $(addprefix -T ,$(LINKER_SCRIPTS)) COMPONENT_ADD_LINKER_DEPS := $(LINKER_SCRIPTS) ifdef IS_BOOTLOADER_BUILD # following lines are a workaround to link librtc into the # bootloader, until clock setting code is in a source-based esp-idf # component. See also rtc_printf() in bootloader_start.c COMPONENT_ADD_LDFLAGS += -L $(IDF_PATH)/components/esp32/lib/ -lrtc COMPONENT_EXTRA_INCLUDES += $(IDF_PATH)/components/esp32/ endif