==== 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                  0x61ac29fd760  P readable   P unreadable
mmap xz                0x61a7207b000  P unreadable P unreadable
mmap x                 0x61a3aa2d000  P readable   P readable  
mmap nrx               0x61ae8426000  P readable   P readable  
mmap nwx               0x61ad3446000  P readable   P readable  
mmap xnwx              0x61acf8a7000  P readable   P readable  
main                   0x617ff7db420  P readable   P unreadable
libc                   0x61a0dd9c580  P readable   P unreadable