==== 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                  0xec8ba8b0c90  P readable   P unreadable
mmap xz                0xec95384a000  P unreadable P unreadable
mmap x                 0xec8f0379000  P readable   P readable  
mmap nrx               0xec8c60eb000  P readable   P readable  
mmap nwx               0xec95d405000  P readable   P readable  
mmap xnwx              0xec97c617000  P readable   P readable  
main                   0xec6a5a3a420  P readable   P unreadable
libc                   0xec8af8877d0  P readable   P unreadable