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			74 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			CMake
		
	
	
	
	
	
			
		
		
	
	
			74 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			CMake
		
	
	
	
	
	
idf_build_get_property(target IDF_TARGET)
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idf_build_get_property(sdkconfig_header SDKCONFIG_HEADER)
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if(NOT "${target}" STREQUAL "esp32c3")
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    return()
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endif()
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if(BOOTLOADER_BUILD)
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    # For bootloader, all we need from esp32c3 is headers
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    idf_component_register(INCLUDE_DIRS include REQUIRES riscv)
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    target_linker_script(${COMPONENT_LIB} INTERFACE "ld/esp32c3.peripherals.ld")
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else()
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    # Regular app build
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    set(srcs "cache_err_int.c"
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             "clk.c"
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             "crosscore_int.c"
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             "dport_access.c"
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             "esp_hmac.c"
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             "esp_ds.c"
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             "esp_crypto_lock.c"
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             "hw_random.c"
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             "memprot.c"
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             "system_api_esp32c3.c")
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    set(include_dirs "include")
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    set(requires driver efuse soc riscv) #unfortunately rom/uart uses SOC registers directly
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    # driver is a public requirement because esp_sleep.h uses gpio_num_t & touch_pad_t
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    # app_update is added here because cpu_start.c uses esp_ota_get_app_description() function.
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    # esp_timer is added here because cpu_start.c uses esp_timer
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    set(priv_requires
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        app_trace app_update bootloader_support log mbedtls nvs_flash
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        pthread spi_flash vfs espcoredump esp_common esp_timer)
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    set(fragments linker.lf ld/esp32c3_fragments.lf)
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    idf_component_register(SRCS "${srcs}"
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                        INCLUDE_DIRS "${include_dirs}"
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                        LDFRAGMENTS "${fragments}"
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                        REQUIRES "${requires}"
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                        PRIV_REQUIRES "${priv_requires}"
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                        REQUIRED_IDF_TARGETS esp32c3)
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    target_linker_script(${COMPONENT_LIB} INTERFACE "${CMAKE_CURRENT_BINARY_DIR}/esp32c3_out.ld")
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    # Process the template file through the linker script generation mechanism, and use the output for linking the
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    # final binary
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    target_linker_script(${COMPONENT_LIB} INTERFACE "${CMAKE_CURRENT_LIST_DIR}/ld/esp32c3.project.ld.in"
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            PROCESS "${CMAKE_CURRENT_BINARY_DIR}/ld/esp32c3.project.ld")
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    target_linker_script(${COMPONENT_LIB} INTERFACE "ld/esp32c3.peripherals.ld")
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    target_link_libraries(${COMPONENT_LIB} PUBLIC gcc)
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    target_link_libraries(${COMPONENT_LIB} INTERFACE "-u call_user_start_cpu0")
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    idf_build_get_property(config_dir CONFIG_DIR)
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    # Preprocess esp32c3.ld linker script to include configuration, becomes esp32c3_out.ld
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    set(LD_DIR ${CMAKE_CURRENT_SOURCE_DIR}/ld)
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    add_custom_command(
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        OUTPUT esp32c3_out.ld
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        COMMAND "${CMAKE_C_COMPILER}" -C -P -x c -E -o esp32c3_out.ld -I ${config_dir} ${LD_DIR}/esp32c3.ld
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        MAIN_DEPENDENCY ${LD_DIR}/esp32c3.ld ${sdkconfig_header}
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        COMMENT "Generating linker script..."
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        VERBATIM)
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    add_custom_target(esp32c3_linker_script DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/esp32c3_out.ld)
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    add_dependencies(${COMPONENT_LIB} esp32c3_linker_script)
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    # disable stack protection in files which are involved in initialization of that feature
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    set_source_files_properties(
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        cpu_start.c
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        PROPERTIES COMPILE_FLAGS
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        -fno-stack-protector)
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endif()
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