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https://github.com/gperftools/gperftools
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35 lines
1.3 KiB
CMake
35 lines
1.3 KiB
CMake
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function(find_objcopy_with_weaken result objcopy_path)
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find_program(objcopy_exe "objcopy" PATHS ${objcopy_path})
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if(objcopy_exe)
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set(objcopy_found "found")
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else()
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set(objcopy_found "not found")
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endif()
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message(STATUS "Looking for objcopy that supports weaken - ${objcopy_found}")
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if(objcopy_exe)
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set(objcopy_test_src "${CMAKE_CURRENT_BINARY_DIR}/objcopy_test.c")
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set(objcopy_test_exe "${CMAKE_CURRENT_BINARY_DIR}/objcopy_test")
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file(WRITE ${objcopy_test_src} "void foo() {} int main() { return 0; }")
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try_compile(objcopy_test_compiled
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${CMAKE_CURRENT_BINARY_DIR} ${objcopy_test_src}
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COPY_FILE ${objcopy_test_exe})
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if(objcopy_test_compiled AND EXISTS ${objcopy_test_exe})
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execute_process(
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COMMAND ${objcopy_exe} -W foo ${objcopy_test_exe}
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RESULT_VARIABLE objcopy_result)
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file(REMOVE ${objcopy_test_exe})
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endif()
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if(objcopy_result EQUAL 0)
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set(objcopy_weaken ON)
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endif()
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file(REMOVE ${objcopy_test_src})
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if(objcopy_weaken)
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set(objcopy_has_weaken "Success")
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set(${result} objcopy_exe PARENT_SCOPE)
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else()
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set(objcopy_has_weaken "Failed")
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endif()
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message(STATUS "objcopy has weaken support - ${objcopy_has_weaken}")
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endif()
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endfunction(find_objcopy_with_weaken)
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