esp-idf/components/esp32s2beta/CMakeLists.txt

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CMake

idf_build_get_property(target IDF_TARGET)
idf_build_get_property(sdkconfig_header SDKCONFIG_HEADER)
if(NOT "${target}" STREQUAL "esp32s2beta")
return()
endif()
if(BOOTLOADER_BUILD)
# For bootloader, all we need from esp32s2beta is headers
idf_component_register(INCLUDE_DIRS include)
target_linker_script(${COMPONENT_LIB} INTERFACE "ld/esp32s2beta.peripherals.ld")
else()
# Regular app build
set(srcs "brownout.c"
"cache_err_int.c"
"clk.c"
"cpu_start.c"
"crosscore_int.c"
"dport_access.c"
"dport_panic_highint_hdl.S"
"esp_adapter.c"
"esp_timer_esp32s2beta.c"
"hw_random.c"
"int_wdt.c"
"intr_alloc.c"
"panic.c"
"pm_esp32s2beta.c"
"pm_trace.c"
"sleep_modes.c"
"spiram.c"
"spiram_psram.c"
"system_api_esp32s2beta.c"
"task_wdt.c")
set(include_dirs "include")
set(requires driver esp_event efuse soc) #unfortunately rom/uart uses SOC registers directly
# driver is a public requirement because esp_sleep.h uses gpio_num_t & touch_pad_t
# app_update is added here because cpu_start.c uses esp_ota_get_app_description() function.
set(priv_requires
app_trace app_update bootloader_support log mbedtls nvs_flash
pthread spi_flash vfs wpa_supplicant espcoredump esp_common esp_wifi)
set(fragments linker.lf ld/esp32s2beta_fragments.lf)
idf_component_register(SRCS "${srcs}"
INCLUDE_DIRS "${include_dirs}"
LDFRAGMENTS "${fragments}"
REQUIRES "${requires}"
PRIV_REQUIRES "${priv_requires}"
REQUIRED_IDF_TARGETS esp32s2beta)
target_linker_script(${COMPONENT_LIB} INTERFACE "${CMAKE_CURRENT_BINARY_DIR}/esp32s2beta_out.ld")
# Rely on user code to define app_main
target_link_libraries(${COMPONENT_LIB} INTERFACE "-u app_main")
# Process the template file through the linker script generation mechanism, and use the output for linking the
# final binary
target_linker_script(${COMPONENT_LIB} INTERFACE "${CMAKE_CURRENT_LIST_DIR}/ld/esp32s2beta.project.ld.in" PROCESS "${CMAKE_CURRENT_BINARY_DIR}/ld/esp32.project.ld")
target_linker_script(${COMPONENT_LIB} INTERFACE "ld/esp32s2beta.peripherals.ld")
target_link_libraries(${COMPONENT_LIB} PUBLIC gcc)
target_link_libraries(${COMPONENT_LIB} INTERFACE "-u call_user_start_cpu0")
#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.
target_link_libraries(${COMPONENT_LIB} INTERFACE "-u ld_include_panic_highint_hdl")
idf_build_get_property(config_dir CONFIG_DIR)
# Preprocess esp32s2beta.ld linker script to include configuration, becomes esp32s2beta_out.ld
set(LD_DIR ${CMAKE_CURRENT_SOURCE_DIR}/ld)
add_custom_command(
OUTPUT esp32s2beta_out.ld
COMMAND "${CMAKE_C_COMPILER}" -C -P -x c -E -o esp32s2beta_out.ld -I ${config_dir} ${LD_DIR}/esp32s2beta.ld
MAIN_DEPENDENCY ${LD_DIR}/esp32s2beta.ld ${sdkconfig_header}
COMMENT "Generating linker script..."
VERBATIM)
add_custom_target(esp32s2beta_linker_script DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/esp32s2beta_out.ld)
add_dependencies(${COMPONENT_LIB} esp32s2beta_linker_script)
# disable stack protection in files which are involved in initialization of that feature
set_source_files_properties(
cpu_start.c
PROPERTIES COMPILE_FLAGS
-fno-stack-protector)
endif()