How does z/OS Debugger locate COBOL source during code coverage

Notes:
  • Only programs compiled with IBM Enterprise COBOL for z/OS 6.2 and later are supported.
  • Currently, only source files on the host can be located.
z/OS® Debugger searches for the source file in the following order:
  1. Default data set name
  2. EQAUEDAT user exit (specifying function code 44)
  3. EQASRCE DD name
  4. EQA_SRC_PATH environment variable

The search for the separate debug file is independent and not changed, and follows the order in How does z/OS Debugger locate COBOL and PL/I separate debug files.