==== 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                  0x1e00d075210  P readable   P unreadable
mmap xz                0x1dfc6a2f000  P unreadable P unreadable
mmap x                 0x1dfb846a000  P readable   P readable  
mmap nrx               0x1dfcca0c000  P readable   P readable  
mmap nwx               0x1e0485b0000  P readable   P readable  
mmap xnwx              0x1e08b657000  P readable   P readable  
main                   0x1dda1c7b430  P readable   P unreadable
libc                   0x1dfe72051a0  P readable   P unreadable