User's Guide

Chapter 12. Understanding XL Fortran Compiler Listings

Partial Table-of-Contents

Diagnostic information is placed in the output listing produced by the -qlist, -qsource, -qxref, -qattr, -qreport, and -qlistopt compiler options. The -S option generates an assembler listing in a separate file.

To locate the cause of a problem with the help of a listing, you can refer to the following:

• The source section (to see any compilation errors in the context of the source program)

• The attribute and cross-reference section (to find data objects that are misnamed or used without being declared, or mismatched parameters)

• The transformation and object sections (to see if the generated code is similar to what you expect)

A heading identifies each major section of the listing. A string of greater than symbols precede the section heading so that you can easily locate its beginning:

>>>>> section name

You can select which sections appear in the listing by specifying compiler options. An easy way to choose options that reflect your goals is to run the xxlf command. This presents a point-and-click interface to different categories of compiler options. Figure 39 shows the window where you can choose the contents of the listing file.

Related Information:

See Options That Control Listings and Messages.