esp-idf/components/esp_rom/CMakeLists.txt

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CMake
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idf_build_get_property(target IDF_TARGET)
idf_component_register(SRCS "patches/esp_rom_longjmp.S"
INCLUDE_DIRS include "${target}"
PRIV_REQUIRES soc)
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if(BOOTLOADER_BUILD)
set(scripts
"${target}/ld/${target}.rom.ld"
"${target}/ld/${target}.rom.newlib-funcs.ld"
"${target}/ld/${target}.rom.libgcc.ld"
)
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if(target STREQUAL "esp32s2")
list(APPEND scripts "esp32s2/ld/esp32s2.rom.spiflash.ld")
endif()
if(CONFIG_ESP32_REV_MIN_3)
list(APPEND scripts "esp32/ld/esp32.rom.eco3.ld")
endif()
target_linker_script(${COMPONENT_LIB} INTERFACE "${scripts}")
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else() # Regular app build
set(scripts
"${target}/ld/${target}.rom.ld"
"${target}/ld/${target}.rom.libgcc.ld"
"${target}/ld/${target}.rom.newlib-data.ld")
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if(target STREQUAL "esp32")
list(APPEND scripts "${target}/ld/${target}.rom.syscalls.ld")
if(NOT CONFIG_SPIRAM_CACHE_WORKAROUND)
list(APPEND scripts "esp32/ld/esp32.rom.newlib-funcs.ld")
if(NOT CONFIG_SDK_TOOLCHAIN_SUPPORTS_TIME_WIDE_64_BITS)
# If SDK_TOOLCHAIN_SUPPORTS_TIME_WIDE_64_BITS option is defined
# then all time functions from the ROM memory will not be linked.
# Instead, those functions can be used from the toolchain by ESP-IDF.
target_linker_script(${COMPONENT_LIB} INTERFACE "esp32/ld/esp32.rom.newlib-time.ld")
endif()
# Include in newlib nano from ROM only if SPIRAM cache workaround is disabled
if(CONFIG_NEWLIB_NANO_FORMAT)
list(APPEND scripts "esp32/ld/esp32.rom.newlib-nano.ld")
endif()
endif()
if(NOT CONFIG_SPI_FLASH_ROM_DRIVER_PATCH)
list(APPEND scripts "esp32/ld/esp32.rom.spiflash.ld")
endif()
if(CONFIG_ESP32_REV_MIN_3)
list(APPEND scripts "esp32/ld/esp32.rom.eco3.ld")
endif()
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elseif(target STREQUAL "esp32s2")
# no SPIRAM workaround for esp32s2
# no nano formatting function in ROM
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list(APPEND scripts "esp32s2/ld/esp32s2.rom.newlib-funcs.ld"
"esp32s2/ld/esp32s2.rom.spiflash.ld")
if(CONFIG_NEWLIB_NANO_FORMAT)
list(APPEND scripts "esp32s2/ld/esp32s2.rom.newlib-nano.ld")
endif()
endif()
target_linker_script(${COMPONENT_LIB} INTERFACE "${scripts}")
target_link_libraries(${COMPONENT_LIB} INTERFACE "-Wl,--wrap=longjmp")
endif()