==== 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                  0x1e6abed7610  P readable   P unreadable
mmap xz                0x1e67e7a1000  P unreadable P unreadable
mmap x                 0x1e69b701000  P readable   P readable  
mmap nrx               0x1e664c31000  P readable   P readable  
mmap nwx               0x1e649b8c000  P readable   P readable  
mmap xnwx              0x1e6940a9000  P readable   P readable  
main                   0x1e3b04be430  P readable   P unreadable
libc                   0x1e6402c8630  P readable   P unreadable