==== run-regress-xonly ====
cc -O2 -pipe  -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                  0xc750ede1d30  P readable   P unreadable
mmap xz                0xc74cd11b000  P unreadable P unreadable
mmap x                 0xc751adcc000  P readable   P readable  
mmap nrx               0xc7437a9d000  P readable   P readable  
mmap nwx               0xc744867d000  P readable   P readable  
mmap xnwx              0xc74d26cb000  P readable   P readable  
main                   0xc7229dd6430  P readable   P unreadable
libc                   0xc751814f050  P readable   P unreadable