LINK Help (linker.hlp) (Table of Contents; Topic list)
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<mapfile> Field
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     Use the <mapfile> field to specify a name for the map file or to
     suppress creation of a map file. A map file lists the segments in
     the main output file.
 
     You can specify a path with the filename. The default extension
     is .MAP. Specify NUL to suppress the creation of a map file. The
     default for the <mapfile> field is one of the following:
 
        ■ If this field is left blank on the command line or in a
          response file, LINK creates a map file with the base name of
          <exefile> (or the first object file if <exefile> is not
          specified) and the extension .MAP. If a dot (.) is specified,
          the map file is given the base name without an extension.
 
        ■ When using LINK prompts, LINK assumes either the default
          described above (if an empty <mapfile> field is specified)
          or NUL.MAP, which suppresses creation of a map file.
 
     To add line numbers to the map file, use the /LINE option. To add
     public symbols and other information, use the /MAP option. Both
     /LINE and /MAP force a map file to be created, unless NUL is
     explicitly specified in <mapfile>.
     See: /LINE Option
          /MAP Option
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