==== run-regress-xonly ====
cc -O2 -pipe  -g -Wall -Wpointer-arith -Wuninitialized -Wstrict-prototypes -Wmissing-prototypes -Wunused -Wsign-compare -Wshadow  -MD -MP  -c /home/src/regress/sys/kern/xonly/xonly.c
cc   -o xonly xonly.o 
./xonly
                                      userland     kernel
ld.so                  0xe86a4ada7e0  P readable   P unreadable
mmap xz                0xe874d0ef000  P unreadable P unreadable
mmap x                 0xe873c743000  P readable   P readable  
mmap nrx               0xe86e5595000  P readable   P readable  
mmap nwx               0xe876114b000  P readable   P readable  
mmap xnwx              0xe86dc945000  P readable   P readable  
main                   0xe847c095420  P readable   P unreadable
libc                   0xe87069f2080  P readable   P unreadable