0ea212918f
In order to enable code relocation, we use a custom target (code_data_relocation_target), and add files we wish to relocate, as well as which sections should be relocated to the COMPILE_DEFINITIONS property for the target. This approach has been fragile, because COMPILE_DEFINITIONS can also be added to for all targets using `add_definitions`. This means if another part of the project uses `add_definitions` and CONFIG_CODE_DATA_RELOCATION is on, a warning will appear about the "file" not being found. The "file" of course, is just the definition added by `add_definitions`. To work around this, switch to overloading the INTERFACE_SOURCES property. This property should be a bit more robust, because nobody else will add sources to the code_data_relocation_target. However, this approach has the downside that the CMake documentation pstates targets created with `add_custom_target()` (which the code_data_relocation_target is) do not have an INTERFACE scope for their sources- so while this approach works, it is not officially supported by CMake Fixes #60220 Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
42 lines
1.5 KiB
CMake
42 lines
1.5 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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# See root CMakeLists.txt for description and expectations of these macros
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macro(toolchain_ld_relocation)
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set(MEM_RELOCATION_LD "${PROJECT_BINARY_DIR}/include/generated/linker_relocate.ld")
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set(MEM_RELOCATION_SRAM_DATA_LD
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"${PROJECT_BINARY_DIR}/include/generated/linker_sram_data_relocate.ld")
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set(MEM_RELOCATION_SRAM_BSS_LD
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"${PROJECT_BINARY_DIR}/include/generated/linker_sram_bss_relocate.ld")
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set(MEM_RELOCATION_CODE "${PROJECT_BINARY_DIR}/code_relocation.c")
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set(MEM_REGION_DEFAULT_RAM RAM)
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set(DICT_FILE "${PROJECT_BINARY_DIR}/relocation_dict.txt")
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file(GENERATE
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OUTPUT
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${DICT_FILE}
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CONTENT
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$<TARGET_PROPERTY:code_data_relocation_target,INTERFACE_SOURCES>
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)
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add_custom_command(
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OUTPUT ${MEM_RELOCATION_CODE} ${MEM_RELOCATION_LD}
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COMMAND
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${PYTHON_EXECUTABLE}
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${ZEPHYR_BASE}/scripts/build/gen_relocate_app.py
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$<$<BOOL:${CMAKE_VERBOSE_MAKEFILE}>:--verbose>
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-d ${APPLICATION_BINARY_DIR}
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-i ${DICT_FILE}
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-o ${MEM_RELOCATION_LD}
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-s ${MEM_RELOCATION_SRAM_DATA_LD}
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-b ${MEM_RELOCATION_SRAM_BSS_LD}
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-c ${MEM_RELOCATION_CODE}
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--default_ram_region ${MEM_REGION_DEFAULT_RAM}
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DEPENDS app kernel ${ZEPHYR_LIBS_PROPERTY} ${DICT_FILE}
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)
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add_library(code_relocation_source_lib STATIC ${MEM_RELOCATION_CODE})
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target_include_directories(code_relocation_source_lib PRIVATE
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${ZEPHYR_BASE}/kernel/include ${ARCH_DIR}/${ARCH}/include)
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target_link_libraries(code_relocation_source_lib zephyr_interface)
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endmacro()
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