In Eclipse, you can use the Manage Signals dialog box in the Breakpoints view menu to modify the default handler settings.
Note
Unix signals SIGINT and SIGTRAP cannot
be debugged in the same way as other signals because they are used
internally by the debugger for asynchronous stopping of the process
and breakpoints respectively.
ExampleIf you want the application to ignore a signal but log the
event when it is triggered then you must enable stopping on a signal.
In the following example, a SIGHUP signal occurs causing
the debugger to stop and print a message. No signal handler is invoked
when using this setting and the application being debugged ignores
the signal and continues.
The following example shows how to debug a signal handler. To do this you must disable stopping on a signal and then set a breakpoint in the signal handler. This is because if stopping on a signal is disabled then the handling of that signal is performed by the process that passes the signal to the registered handler. If no handler is registered then the default handler runs and the application generally exits.
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DS-5 Debugger Command Reference:
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