KTRFAC_SYSCALL
ATF_REQUIRE_EQ(0, ktrace(NULL, KTROP_CLEAR, KTRFAC_SYSCALL, pid));
fd = trace_child(pid, KTRFAC_SYSCALL, 1);
KTRFAC_SYSCALL, pid1);
#define DEF_POINTS (KTRFAC_SYSCALL | KTRFAC_SYSRET | KTRFAC_NAMEI | \
facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET;