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Test implementation
author Daniel O'Connor <darius@dons.net.au>
date Tue, 04 Feb 2025 14:20:07 +1030
parents b9ec45077bff
children
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1 function(bin2elf TARGET BINFILE)
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2 cmake_parse_arguments(bin2elf "" "OUTPUT_DIR" "" ${ARGN})
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3 set(FILENAME "${CMAKE_SOURCE_DIR}/${BINFILE}")
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4 set(ELFNAME "${CMAKE_CURRENT_BINARY_DIR}/${BINFILE}.o")
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5 #message("FILENAME ${FILENAME} ELFNAME ${ELFNAME}")
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6
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7 # Not sure why but we can't depend directly, have to create this intermediary
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8 # Copied idea from pico_generate_pio_header
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9 get_filename_component(BIN_GEN_TARGET ${BINFILE} NAME_WE)
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10 set(BIN_GEN_TARGET "${TARGET}_${BIN_GEN_TARGET}")
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11 add_custom_target(${BIN_GEN_TARGET} DEPENDS ${ELFNAME})
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12
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13 # Create symbol name for bin file
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14 string(MAKE_C_IDENTIFIER ${BINFILE} BIN_SYMNAME)
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15 #message("BINFILE ${BINFILE} BIN_SYMNAME ${BIN_SYMNAME}")
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16
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17 # Get directory name of source file
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18 # ld will name the symbol based on the full path so we have to mangle it
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19 get_filename_component(BIN_SRC_DIR ${FILENAME} DIRECTORY)
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20 string(MAKE_C_IDENTIFIER ${BIN_SRC_DIR} SRC_DIRNAME_MANGLED)
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21 #message("SRC_DIRNAME_MANGLED ${SRC_DIRNAME_MANGLED}")
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22
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23 # http://stupefydeveloper.blogspot.com/2008/08/cc-embed-binary-data-into-elf.html
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24 add_custom_command(OUTPUT ${ELFNAME}
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25 COMMAND arm-none-eabi-ld -r -b binary -o ${ELFNAME}
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26 --defsym=${BIN_SYMNAME}_start=_binary_${SRC_DIRNAME_MANGLED}_${BIN_SYMNAME}_start
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27 --defsym=${BIN_SYMNAME}_end=_binary_${SRC_DIRNAME_MANGLED}_${BIN_SYMNAME}_end
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28 --defsym=${BIN_SYMNAME}_size=_binary_${SRC_DIRNAME_MANGLED}_${BIN_SYMNAME}_size
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29 ${FILENAME}
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30 DEPENDS ${FILENAME})
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31 add_dependencies(${TARGET} ${BIN_GEN_TARGET})
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32
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33 # Add object file to list of things to be linked
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34 target_link_libraries(${TARGET} ${CMAKE_CURRENT_BINARY_DIR}/${ELFNAME})
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35 endfunction()