XL Fortran Enterprise Edition for AIX : User's Guide - IBM

-qsigtrap Option
Syntax
-qsigtrap[=trap_handler]
When you are compiling a file that contains a main program, this option sets up
the specified trap handler to catch SIGTRAP exceptions. This option enables you
to install a handler for SIGTRAP signals without calling the SIGNAL subprogram
in the program.
Arguments
To enable the xl__trce trap handler, specify -qsigtrap without a handler name. To
use a different trap handler, specify its name with the -qsigtrap option.
If you specify a different handler, ensure that the object module that contains it is
linked with the program.
Related Information
The possible causes of exceptions are described in “XL Fortran Run-Time
Exceptions” on page 66. “Detecting and Trapping Floating-Point Exceptions” on
page 296 describes a number of methods for dealing with exceptions that result
from floating-point computations. “Installing an Exception Handler” on page 298
lists the exception handlers that XL Fortran supplies.
232 XL Fortran Enterprise Edition for AIX : User’s Guide