==== 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                  0x7e9596b50f0  P readable   P unreadable
mmap xz                0x7ea390d9000  P unreadable P unreadable
mmap x                 0x7e957f16000  P readable   P readable  
mmap nrx               0x7e9d6652000  P readable   P readable  
mmap nwx               0x7e987f4e000  P readable   P readable  
mmap xnwx              0x7e9e3175000  P readable   P readable  
main                   0x7e754dc4410  P readable   P unreadable
libc                   0x7ea3a9a3620  P readable   P unreadable