==== 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                  0x45ab16529c0  P readable   P unreadable
mmap xz                0x45a2f3e2000  P unreadable P unreadable
mmap x                 0x45a7f333000  P readable   P readable  
mmap nrx               0x45a6fb57000  P readable   P readable  
mmap nwx               0x45a24431000  P readable   P readable  
mmap xnwx              0x45a9efc1000  P readable   P readable  
main                   0x457e71c2430  P readable   P unreadable
libc                   0x45a32312870  P readable   P unreadable