==== 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                  0x6350db08670  P readable   P unreadable
mmap xz                0x6350efbc000  P unreadable P unreadable
mmap x                 0x635b2b49000  P readable   P readable  
mmap nrx               0x6356d2d2000  P readable   P readable  
mmap nwx               0x6358b466000  P readable   P readable  
mmap xnwx              0x635d1488000  P readable   P readable  
main                   0x633028b4420  P readable   P unreadable
libc                   0x635acc2a590  P readable   P unreadable