mirror of
https://github.com/espressif/esp-idf.git
synced 2026-04-27 11:03:11 +00:00
Adam Múdry
749c446a7e
Add a new CMake function esp_partition_flash_binary() that provides a unified API for registering partition data binaries to be flashed. It replaces the direct esptool_py_flash_target calls scattered across components (spiffs, fatfs, nvs_flash) with a single function that: - Resolves partition offset from the partition table automatically - Determines encryption requirements (auto-detect or ALWAYS_PLAINTEXT) - Creates per-partition flash targets (e.g. idf.py <partition>-flash) - Optionally includes the binary in `idf.py flash` via FLASH_IN_PROJECT On the linux target, the function registers binaries for pre-loading into the emulated flash. A build-time manifest (linux_flash_data.txt) is generated via file(GENERATE), and partition_linux.c reads it at runtime to copy each binary into the memory-mapped flash buffer at the correct offset. The partition_ops example is updated to use the new function and includes a custom_partition with pre-built data to demonstrate the full workflow, including on the linux target.
82 lines
2.9 KiB
CMake
82 lines
2.9 KiB
CMake
idf_build_get_property(esp_tee_build ESP_TEE_BUILD)
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set(reqs esp_blockdev)
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# bootloader build simplified version
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if(BOOTLOADER_BUILD)
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set(srcs "partition_bootloader.c")
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list(APPEND reqs spi_flash)
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set(priv_reqs "bootloader_support" "efuse")
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idf_component_register(SRCS "${srcs}"
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INCLUDE_DIRS "include"
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REQUIRES ${reqs}
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PRIV_REQUIRES ${priv_reqs})
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# esp-tee build simplified version
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elseif(esp_tee_build)
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set(srcs "partition_tee.c")
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list(APPEND reqs spi_flash)
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set(priv_reqs "tee_flash_mgr" "efuse")
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idf_component_register(SRCS "${srcs}"
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INCLUDE_DIRS "include"
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REQUIRES ${reqs}
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PRIV_REQUIRES ${priv_reqs})
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# regular, OS build
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else()
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set(srcs "partition.c")
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set(priv_reqs esp_system spi_flash partition_table efuse)
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set(reqs esp_blockdev)
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set(private_include_dirs)
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idf_build_get_property(build_dir BUILD_DIR)
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idf_build_get_property(target IDF_TARGET)
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if(${target} STREQUAL "linux")
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list(APPEND srcs "partition_linux.c")
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# Steal some include directories from bootloader_support components:
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idf_component_get_property(bootloader_support_dir bootloader_support COMPONENT_DIR)
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set(private_include_dirs ${bootloader_support_dir}/include)
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else()
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list(APPEND priv_reqs bootloader_support app_update)
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list(APPEND srcs "partition_target.c")
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endif()
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idf_component_register(SRCS "${srcs}"
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INCLUDE_DIRS "include"
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PRIV_INCLUDE_DIRS ${private_include_dirs}
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REQUIRES ${reqs}
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PRIV_REQUIRES ${priv_reqs})
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if(${target} STREQUAL "linux")
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# set BUILD_DIR because partition_linux.c uses a file created in the build directory
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target_compile_definitions(${COMPONENT_LIB} PRIVATE "BUILD_DIR=\"${build_dir}\"")
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target_link_libraries(${COMPONENT_LIB} PRIVATE dl)
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# Create the linux_flash_data target that accumulates partition data entries
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# registered by esp_partition_register_target(). The target may already exist if
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# a project_include.cmake ran before this CMakeLists.txt.
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if(NOT TARGET linux_flash_data)
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add_custom_target(linux_flash_data)
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endif()
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# Generate a manifest file listing all partition data binaries to pre-load
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# into the emulated flash. Each line has format: "<hex_offset> <absolute_path>".
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# Generator expressions are evaluated after all CMakeLists.txt processing completes,
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# so all entries accumulated by esp_partition_register_target() will be included.
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file(GENERATE
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OUTPUT "${build_dir}/linux_flash_data.txt"
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CONTENT "$<JOIN:$<TARGET_PROPERTY:linux_flash_data,FLASH_DATA_ENTRIES>,\n>\n")
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endif()
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if(CMAKE_C_COMPILER_ID MATCHES "GNU")
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# These flags are GCC specific
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set_property(SOURCE ${cache_srcs} APPEND_STRING PROPERTY COMPILE_FLAGS
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" -fno-inline-small-functions -fno-inline-functions-called-once")
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endif()
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endif()
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