==== 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                  0x24cfa08e5f0  P readable   P unreadable
mmap xz                0x24c47d6a000  P unreadable P unreadable
mmap x                 0x24ce071d000  P readable   P readable  
mmap nrx               0x24c59b7a000  P readable   P readable  
mmap nwx               0x24cfc3f1000  P readable   P readable  
mmap xnwx              0x24cf6a09000  P readable   P readable  
main                   0x24a28b7c410  P readable   P unreadable
libc                   0x24d0898e6c0  P readable   P unreadable