idf_build_get_property(target IDF_TARGET) set(include_dirs "include" "include/${target}") set(private_required_comp "") set(sources "") if(target STREQUAL "linux") list(APPEND sources "${target}/esp_rom_sys.c" "${target}/esp_rom_crc.c" "${target}/esp_rom_md5.c" "${target}/esp_rom_efuse.c") list(APPEND include_dirs "${IDF_PATH}/tools/mocks/soc/include") else() list(APPEND include_dirs "${target}") list(APPEND sources "patches/esp_rom_crc.c" "patches/esp_rom_sys.c" "patches/esp_rom_uart.c" "patches/esp_rom_spiflash.c" "patches/esp_rom_regi2c.c" "patches/esp_rom_efuse.c") if(CONFIG_HEAP_TLSF_USE_ROM_IMPL AND CONFIG_ESP_ROM_TLSF_CHECK_PATCH) # This file shall be included in the build if TLSF in ROM is activated list(APPEND sources "patches/esp_rom_tlsf.c") endif() list(APPEND private_required_comp soc hal) endif() if(CONFIG_IDF_TARGET_ARCH_XTENSA) list(APPEND sources "patches/esp_rom_longjmp.S") endif() if(CONFIG_SOC_SYSTIMER_SUPPORTED) list(APPEND sources "patches/esp_rom_systimer.c") endif() idf_component_register(SRCS ${sources} INCLUDE_DIRS ${include_dirs} PRIV_REQUIRES ${private_required_comp} LDFRAGMENTS linker.lf) if(target STREQUAL "esp32h4") if(CONFIG_IDF_TARGET_ESP32H4_BETA_VERSION_1) set(ld_folder "ld/rev1") elseif(CONFIG_IDF_TARGET_ESP32H4_BETA_VERSION_2) set(ld_folder "ld/rev2") endif() else() set(ld_folder "ld") endif() # Append a target linker script at the target-specific path, # only the 'name' part is different for each script function(rom_linker_script name) target_linker_script(${COMPONENT_LIB} INTERFACE "${target}/${ld_folder}/${target}.rom.${name}.ld") endfunction() if(target STREQUAL "linux") # We need to disable some warnings due to the ROM code's printf implementation if(CMAKE_C_COMPILER_ID STREQUAL "GNU" AND ${CMAKE_CXX_COMPILER_VERSION} GREATER "7.0.0") target_compile_options(${COMPONENT_LIB} PRIVATE -Wimplicit-fallthrough=0 -Wno-shift-count-overflow) endif() if(CMAKE_C_COMPILER_ID MATCHES "Clang") # Clang or AppleClang target_compile_options(${COMPONENT_LIB} PRIVATE -Wno-integer-overflow -Wno-shift-count-overflow) endif() else() target_linker_script(${COMPONENT_LIB} INTERFACE "${target}/${ld_folder}/${target}.rom.ld") rom_linker_script("api") if(CONFIG_COMPILER_FLOAT_LIB_FROM_GCCLIB) rom_linker_script("libgcc") else() rom_linker_script("rvfp") endif() endif() idf_build_get_property(time_t_size TIME_T_SIZE) if(BOOTLOADER_BUILD) if(target STREQUAL "esp32") rom_linker_script("newlib-funcs") if(NOT CONFIG_SPI_FLASH_ROM_DRIVER_PATCH) rom_linker_script("spiflash") endif() if(CONFIG_ESP32_REV_MIN_FULL GREATER_EQUAL 300) rom_linker_script("eco3") endif() elseif(target STREQUAL "esp32s2") rom_linker_script("newlib-funcs") rom_linker_script("spiflash") elseif(target STREQUAL "esp32s3") rom_linker_script("newlib") elseif(target STREQUAL "esp32c3") rom_linker_script("newlib") elseif(target STREQUAL "esp32h4") rom_linker_script("newlib") elseif(target STREQUAL "esp32c2") rom_linker_script("newlib") rom_linker_script("mbedtls") elseif(target STREQUAL "esp32c6") rom_linker_script("newlib") # The linking of the bootloader needs to use the rom_i2c_writeReg_Mask in esp32c6.rom.phy.ld rom_linker_script("phy") endif() else() # Regular app build if(target STREQUAL "esp32") rom_linker_script("newlib-data") rom_linker_script("syscalls") if(NOT CONFIG_SPIRAM_CACHE_WORKAROUND) # ESP32 only: these ROM functions may only be used if PSRAM cache workaround is disabled. # Otherwise we need to link to a multilib version of libc compiled with PSRAM workaround. rom_linker_script("newlib-funcs") if(time_t_size EQUAL 4) # The ROM functions listed in this linker script depend on sizeof(time_t). # Since ROM for ESP32 was compiled for 32-bit time_t, only link these functions # if the toolchain is also using 32-bit time_t. rom_linker_script("newlib-time") if(CONFIG_NEWLIB_NANO_FORMAT) # nano formatting functions in ROM are also built for 32-bit time_t. rom_linker_script("newlib-nano") endif() endif() endif() if(NOT CONFIG_SPI_FLASH_ROM_DRIVER_PATCH) rom_linker_script("spiflash") endif() if(CONFIG_ESP32_REV_MIN_FULL GREATER_EQUAL 300) rom_linker_script("eco3") endif() elseif(target STREQUAL "esp32s2") rom_linker_script("newlib-funcs") rom_linker_script("newlib-data") rom_linker_script("spiflash") if(time_t_size EQUAL 4) # The ROM functions listed in this linker script depend on sizeof(time_t). # Since ROM for ESP32-S2 was compiled for 32-bit time_t, only link these functions # if the toolchain is also using 32-bit time_t. rom_linker_script("newlib-time") if(CONFIG_NEWLIB_NANO_FORMAT) # nano formatting functions in ROM are also built for 32-bit time_t. rom_linker_script("newlib-nano") endif() endif() elseif(target STREQUAL "esp32s3") rom_linker_script("newlib") rom_linker_script("version") if(time_t_size EQUAL 4) # The ROM functions listed in this linker script depend on sizeof(time_t). # Since ROM for ESP32-S3 was compiled for 32-bit time_t, only link these functions # if the toolchain is also using 32-bit time_t. rom_linker_script("newlib-time") if(CONFIG_NEWLIB_NANO_FORMAT) # nano formatting functions in ROM are also built for 32-bit time_t. rom_linker_script("newlib-nano") endif() endif() elseif(target STREQUAL "esp32c3") rom_linker_script("newlib") rom_linker_script("version") if(time_t_size EQUAL 4) # The ROM functions listed in this linker script depend on sizeof(time_t). # Since ROM for ESP32-C3 was compiled for 32-bit time_t, only link these functions # if the toolchain is also using 32-bit time_t. rom_linker_script("newlib-time") if(CONFIG_NEWLIB_NANO_FORMAT) # nano formatting functions in ROM are also built for 32-bit time_t. rom_linker_script("newlib-nano") endif() endif() if(CONFIG_ESP32C3_REV_MIN_FULL GREATER_EQUAL 3) rom_linker_script("eco3") endif() elseif(target STREQUAL "esp32h4") rom_linker_script("newlib") rom_linker_script("version") if(CONFIG_NEWLIB_NANO_FORMAT AND time_t_size EQUAL 4) # nano formatting functions in ROM are built for 32-bit time_t, # only link them if the toolchain is also using 32-bit time_t and nano formatting was requested. rom_linker_script("newlib-nano") endif() elseif(target STREQUAL "esp32c2") rom_linker_script("newlib") rom_linker_script("version") rom_linker_script("mbedtls") if(time_t_size EQUAL 8) # The ROM functions listed in this linker script depend on sizeof(time_t). # Since ROM for ESP32-C2 was compiled for 64-bit time_t, only link these functions # if the toolchain is also using 64-bit time_t. rom_linker_script("newlib-time") if(CONFIG_NEWLIB_NANO_FORMAT) # nano formatting functions in ROM are also built for 64-bit time_t. rom_linker_script("newlib-nano") endif() endif() elseif(target STREQUAL "esp32c6") rom_linker_script("newlib") rom_linker_script("version") # esp32c6.rom.api.ld has been split to several lds by components. rom_linker_script("phy") rom_linker_script("coexist") rom_linker_script("net80211") rom_linker_script("pp") if(CONFIG_SPI_FLASH_ROM_IMPL) rom_linker_script("spiflash") endif() if(time_t_size EQUAL 8) # The ROM functions listed in this linker script depend on sizeof(time_t). # ESP32-C6 ROM was compiled for 64-bit time_t, only link these functions # if the toolchain is also using 64-bit time_t. rom_linker_script("newlib-time") if(NOT CONFIG_NEWLIB_NANO_FORMAT) # Normal(Non-nano) formatting functions in ROM are also built for 64-bit time_t. rom_linker_script("newlib-normal") endif() endif() endif() if(CONFIG_HEAP_TLSF_USE_ROM_IMPL) # After registering the component, set the tlsf_set_rom_patches symbol as undefined # to force the linker to integrate the whole `esp_rom_tlsf.c` object file inside the # final binary. This is necessary because tlsf_set_rom_patches is a constructor, thus, # there as no explicit reference/call to it in IDF. if(CONFIG_ESP_ROM_TLSF_CHECK_PATCH) target_link_libraries(${COMPONENT_LIB} PRIVATE "-u tlsf_set_rom_patches") endif() rom_linker_script("heap") endif() if(CONFIG_IDF_TARGET_ARCH_XTENSA) target_link_libraries(${COMPONENT_LIB} INTERFACE "-Wl,--wrap=longjmp") endif() endif() if(target STREQUAL "esp32s2") target_sources(${COMPONENT_LIB} PRIVATE "esp32s2/usb_descriptors.c") endif()