LookingGlass/client/cmake/MakeObject.cmake

35 lines
1.5 KiB
CMake

function(make_object out_var)
set(result)
set(result_h)
foreach(in_f ${ARGN})
file(RELATIVE_PATH out_f ${CMAKE_CURRENT_SOURCE_DIR} "${CMAKE_CURRENT_SOURCE_DIR}/${in_f}")
set(out_h "${CMAKE_CURRENT_BINARY_DIR}/${out_f}.h")
set(out_f "${CMAKE_CURRENT_BINARY_DIR}/${out_f}.o")
string(REGEX REPLACE "[/.]" "_" sym_in ${in_f})
add_custom_command(OUTPUT ${out_f}
COMMAND ${CMAKE_LINKER} -r -b binary -o ${out_f} ${in_f}
COMMAND ${CMAKE_OBJCOPY} --rename-section .data=.rodata,CONTENTS,ALLOC,LOAD,READONLY,DATA ${out_f} ${out_f}
COMMAND ${CMAKE_OBJCOPY} --redefine-sym _binary_${sym_in}_start=b_${sym_in} ${out_f} ${out_f}
COMMAND ${CMAKE_OBJCOPY} --redefine-sym _binary_${sym_in}_end=b_${sym_in}_end ${out_f} ${out_f}
COMMAND ${CMAKE_OBJCOPY} --strip-symbol _binary_${sym_in}_size ${out_f} ${out_f}
DEPENDS ${in_f}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMENT "Creating object from ${in_f}"
VERBATIM
)
file(WRITE ${out_h} "extern const char b_${sym_in}[];\n")
file(APPEND ${out_h} "extern const char b_${sym_in}_end[];\n")
file(APPEND ${out_h} "#define b_${sym_in}_size (b_${sym_in}_end - b_${sym_in})\n")
get_filename_component(h_dir ${out_h} DIRECTORY)
list(APPEND result_h ${h_dir})
list(APPEND result ${out_f})
endforeach()
list(REMOVE_DUPLICATES result_h)
set(${out_var}_OBJS "${result}" PARENT_SCOPE)
set(${out_var}_INCS "${result_h}" PARENT_SCOPE)
endfunction()