HelenOS sources

SIGTRAP           116 uspace/lib/posix/src/signal.c 	case SIGTRAP:
SIGTRAP           363 uspace/lib/posix/src/signal.c 	if ((action.sa_flags & SA_RESETHAND) && signo != SIGILL && signo != SIGTRAP) {
SIGTRAP           227 uspace/lib/posix/src/string.c 		[SIGTRAP] = "SIGTRAP (Trace/breakpoint trap)",