You can use the signal-send probe to determine the sending and receiving process associated with any signal, as shown in the following example:
#pragma D option quiet proc:::signal-send { @[execname, stringof(args[1]->pr_fname), args[2]] = count(); } END { printf("%20s %20s %12s %s\n", "SENDER", "RECIPIENT", "SIG", "COUNT"); printa("%20s %20s %12d %@d\n", @); }
Running this script results in output similar to the following example:
# dtrace -s ./sig.d ^C SENDER RECIPIENT SIG COUNT xterm dtrace 2 1 xterm soffice.bin 2 1 tr init 18 1 sched test 18 1 sched fvwm2 18 1 bash bash 20 1 sed init 18 2 sched ksh 18 15 sched Xsun 22 471 |