3.8. Using the C preprocessor

You can include the C preprocessor command #include in your assembly language source file. If you do this, you must preprocess the file using the C preprocessor, before using armasm to assemble it. See RealView Compilation Tools v2.2 Compiler and Libraries Guide.

armasm correctly interprets #line commands in the resulting file. It can generate error messages and debug_line tables using the information in the #line commands.

Example 3.1 shows the commands you write to preprocess and assemble a file, source.s. In this example, the preprocessor outputs a file called preprocessed.s, and armasm assembles preprocessed.s.

Example 3.1. Preprocessing an assembly language source file

armcc -E source.s > preprocessed.s
armasm preprocessed.s
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