button is displayed at the beginning
of the function name lines when a source file and line number are available.
If line number information is not available, Purify reports only function
and filename information. debug data
Information the compiler gathers about your code when you compile with the -g debug option. The compiler includes debugging information in the resulting object file. Purify uses the debug data to report source line numbers, source filenames, and local variable names in Purify messages. Without debug data, Purify can report only function names and object file names.
If you use the debug option, Purify provides line number information
in the Viewer. The
button is displayed at the beginning
of the function name lines when a source file and line number are available.
If line number information is not available, Purify reports only function
and filename information.
Do not use Purify to instrument files that were compiled with both -g and -O at the same time.
Note:
On IRIX, system
libraries retain their source file and line number information. For this
reason, the
button might appear next to a system library
function whose source file is not available. When you click the
button for such a line, Purify asks you for the location
of the source file. Enter the location of the file if you know it, then
click OK to expand the line.