Qualifier_Values

 

file-spec

   Specifies the character string you want the linker to use as the
   name of the debug symbol file. If you do not include a file type
   in the character string, the linker appends the .DSF file type to
   the file name.

   If you specify the /DSF qualifier without the file specification,
   the linker creates a debug symbol file with the file name of the
   first input file and the default file type .DSF. If you append
   the /DSF qualifier to one of the input file specifications, the
   linker creates a debug symbol file with the file name of the file
   to which the qualifier is appended and with the default file type
   .DSF.

   The OpenVMS Debugger (whether you use it in System-Code Debugger
   mode or user mode) requires that the name of the DSF file be
   the same as the name of the image file, except that the file
   extension is .DSF. If you use an /EXECUTABLE or /SHAREABLE
   qualifier and a file name with the LINK command, you must also
   include the same file name with the /DSF qualifier. (You must
   also use the .DSF file type.)