Rational Developer for System z
COBOL for Windows, Version 7.5, Programming Guide


Getting listings

Get the information that you need for debugging by requesting the appropriate compiler listing with the use of compiler options.

Attention: The listings produced by the compiler are not a programming interface and are subject to change.

Table 42. Using compiler options to get listings
Use Listing Contents Compiler option
To check a list of the options in effect for the program, statistics about the content of the program, and diagnostic messages about the compilation

To check the locale in effect during compilation

Short listing
  • List of options in effect for the program
  • Statistics about the content of the program
  • Diagnostic messages about the compilation1

Locale line that shows the locale in effect

NOSOURCE, NOXREF, NOVBREF, NOMAP, NOLIST
To aid in testing and debugging your program; to have a record after the program has been debugged Source listing Copy of your source SOURCE
To find certain data items; to see the final storage allocation after reentrancy or optimization has been accounted for; to see where programs are defined and check their attributes Map of DATA DIVISION items All DATA DIVISION items and all implicitly declared items

Embedded map summary (in the right margin of the listing for lines in the DATA DIVISION that contain data declarations)

Nested program map (if the program contains nested programs)

MAP2
To find where a name is defined, referenced, or modified; to determine the context (such as whether a verb was used in a PERFORM block) in which a procedure is referenced Sorted cross-reference listing of names Data-names, procedure-names, and program-names; references to these names

Embedded modified cross-reference: provides the line number where the data-name or procedure-name was defined

XREF2,3
To find the failing verb in a program or the address in storage of a data item that was moved during the program PROCEDURE DIVISION code and assembler code produced by the compiler3 Generated code LIST2,4
To find an instance of a certain verb Alphabetic listing of verbs Each verb used, number of times each verb was used, line numbers where each verb was used VBREF
  1. To eliminate messages, turn off the options (such as FLAG) that govern the level of compile diagnostic information.
  2. To use your line numbers in the compiled program, use the NUMBER compiler option. The compiler checks the sequence of your source statement line numbers in columns 1 through 6 as the statements are read in. When it finds a line number out of sequence, the compiler assigns to it a number with a value one higher than the line number of the preceding statement. The new value is flagged with two asterisks. A diagnostic message indicating an out-of-sequence error is included in the compilation listing.
  3. The context of the procedure reference is indicated by the characters preceding the line number.
  4. The assembler listing is written to a file that has the same name as the source program but with the extension .asm, except for batch compiles that use the SEPOBJ option.

Example: short listing
Example: SOURCE and NUMBER output
Example: MAP output
Example: embedded map summary
Example: nested program map
Example: XREF output - data-name cross-references
Example: XREF output - program-name cross-references
Example: embedded cross-reference
Example: VBREF compiler output

related tasks
Generating a list of compiler error messages

related references
Messages and listings for compiler-detected errors
SEPOBJ


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