This switch controls whether or not symbolic debug information is included in the object file, thus allowing variables, labels, and expressions appearing in the assembler source file to be viewed from within a source-level debugger.
┌────┬──────┬─────┬────┬──────────────────────────────────────────────────┐ │Type│Global│Group│File│Default │ ├────┼──────┼─────┼────┼──────────────────────────────────────────────────┤ │S │Yes │Yes │Yes │-Ods (symbolic debug information is not included │ │ │ │ │ │in object file) │ └────┴──────┴─────┴────┴──────────────────────────────────────────────────┘