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4a06f7cfd5
This prevents issues like obscure characters getting transformed in symbol
names, resulting in an endless game of whack-a-mole finding symbols that are
replaced, such as 58964ce317.
43 lines
1.7 KiB
CMake
43 lines
1.7 KiB
CMake
function(make_object out_var)
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set(result)
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set(result_h)
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foreach(in_f ${ARGN})
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file(RELATIVE_PATH out_f ${CMAKE_CURRENT_SOURCE_DIR} "${CMAKE_CURRENT_SOURCE_DIR}/${in_f}")
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set(out_h "${CMAKE_CURRENT_BINARY_DIR}/${out_f}.h")
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set(out_f "${CMAKE_CURRENT_BINARY_DIR}/${out_f}.o")
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string(REGEX REPLACE "[/.-]" "_" sym_in "${in_f}")
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add_custom_command(OUTPUT ${out_f}
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COMMAND ${CMAKE_LINKER} -r -b binary -o ${out_f} "${in_f}"
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COMMAND ${CMAKE_OBJCOPY} --rename-section .data=.rodata,CONTENTS,ALLOC,LOAD,READONLY,DATA ${out_f} ${out_f}
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COMMAND ${CMAKE_OBJCOPY} --redefine-sym _binary_${sym_in}_start=b_${sym_in} ${out_f} ${out_f}
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COMMAND ${CMAKE_OBJCOPY} --redefine-sym _binary_${sym_in}_end=b_${sym_in}_end ${out_f} ${out_f}
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COMMAND ${CMAKE_OBJCOPY} --strip-symbol _binary_${sym_in}_size ${out_f} ${out_f}
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DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/${in_f}"
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
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COMMENT "Creating object from ${in_f}"
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VERBATIM
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)
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file(WRITE ${out_h} "extern const char b_${sym_in}[];\n")
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file(APPEND ${out_h} "extern const char b_${sym_in}_end[];\n")
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file(APPEND ${out_h} "#define b_${sym_in}_size (b_${sym_in}_end - b_${sym_in})\n")
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get_filename_component(h_dir ${out_h} DIRECTORY)
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list(APPEND result_h ${h_dir})
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list(APPEND result ${out_f})
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endforeach()
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list(REMOVE_DUPLICATES result_h)
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set(${out_var}_OBJS "${result}" PARENT_SCOPE)
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set(${out_var}_INCS "${result_h}" PARENT_SCOPE)
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endfunction()
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function(make_defines in_file out_file)
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add_custom_command(OUTPUT ${out_file}
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COMMAND grep "^#define" "${in_file}" > "${out_file}"
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DEPENDS ${in_file}
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COMMENT "Creating #defines from ${in_file}"
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)
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endfunction()
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