==== 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                   0x8e50518870  P readable   P unreadable
mmap xz                 0x8e58b9a000  P unreadable P unreadable
mmap x                  0x8e3c7b8000  P readable   P readable  
mmap nrx                0x8e7ebbe000  P readable   P readable  
mmap nwx                0x8e01f69000  P readable   P readable  
mmap xnwx               0x8ecd9d9000  P readable   P readable  
main                    0x8bda65d410  P readable   P unreadable
libc                    0x8e2b7dbd60  P readable   P unreadable