==== 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                  0x4c9379ace30  P readable   P unreadable
mmap xz                0x4ca0d666000  P unreadable P unreadable
mmap x                 0x4ca190c6000  P readable   P readable  
mmap nrx               0x4c9ed6dd000  P readable   P readable  
mmap nwx               0x4c95d0eb000  P readable   P readable  
mmap xnwx              0x4c9dcb92000  P readable   P readable  
main                   0x4c727814430  P readable   P unreadable
libc                   0x4c9e1447850  P readable   P unreadable