When a signal is to be delivered to a process that is being debugged, the signal is redirected to dbx by the kernel. When this happens, you usually receive a prompt. You then have two choices:
Cancel the signal when the program is resumed (the default behavior of the cont command), facilitating easy interruption and resumption with SIGINT (Control-C), as shown in Figure 14–1.
Forward the signal to the process using the following command:
cont -sig signal
signal can be either a signal name or a signal number.
Figure 14-1 Intercepting and Cancelling the SIGINT Signal
In addition, if a certain signal is received frequently, you can arrange for dbx to forward the signal automatically because you do not want it displayed:
ignore signal
However, the signal is still forwarded to the process. A default set of signals is automatically forwarded in this manner (see ignore Command).