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- #
- # Component Makefile
- #
- COMPONENT_SRCDIRS := .
- ifdef CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY
- # This linker script must come before esp32.project.ld
- LINKER_SCRIPTS += esp32.extram.bss.ld
- endif
- #Linker scripts used to link the final application.
- #Warning: These linker scripts are only used when the normal app is compiled; the bootloader
- #specifies its own scripts.
- LINKER_SCRIPTS += $(COMPONENT_BUILD_DIR)/esp32.project.ld esp32.peripherals.ld
- #ld_include_panic_highint_hdl is added as an undefined symbol because otherwise the
- #linker will ignore panic_highint_hdl.S as it has no other files depending on any
- #symbols in it.
- COMPONENT_ADD_LDFLAGS += -L $(COMPONENT_PATH)/ld \
- -T esp32_out.ld \
- -u ld_include_panic_highint_hdl \
- $(addprefix -T ,$(LINKER_SCRIPTS)) \
- COMPONENT_ADD_LDFRAGMENTS += ld/esp32_fragments.lf linker.lf
- # final linking of project ELF depends on all binary libraries, and
- # all linker scripts (except esp32_out.ld, as this is code generated here.)
- COMPONENT_ADD_LINKER_DEPS := $(addprefix ld/, $(filter-out $(COMPONENT_BUILD_DIR)/esp32.project.ld, $(LINKER_SCRIPTS))) \
- $(COMPONENT_BUILD_DIR)/esp32.project.ld
- # Preprocess esp32.ld linker script into esp32_out.ld
- #
- # The library doesn't really depend on esp32_out.ld, but it
- # saves us from having to add the target to a Makefile.projbuild
- $(COMPONENT_LIBRARY): esp32_out.ld
- esp32_out.ld: $(COMPONENT_PATH)/ld/esp32.ld ../include/sdkconfig.h
- $(CC) -I ../include -C -P -x c -E $< -o $@
- COMPONENT_EXTRA_CLEAN := esp32_out.ld $(COMPONENT_BUILD_DIR)/esp32.project.ld
- # disable stack protection in files which are involved in initialization of that feature
- cpu_start.o: CFLAGS := $(filter-out -fstack-protector%, $(CFLAGS))
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