==== 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                  0x98d80dd8f10  P readable   P unreadable
mmap xz                0x98e3a363000  P unreadable P unreadable
mmap x                 0x98d50cd3000  P readable   P readable  
mmap nrx               0x98e30f54000  P readable   P readable  
mmap nwx               0x98db9572000  P readable   P readable  
mmap xnwx              0x98dc0937000  P readable   P readable  
main                   0x98b4de08410  P readable   P unreadable
libc                   0x98e02cf6fe0  P readable   P unreadable