UVMHIST_DECL      148 uvm/uvm.h      extern UVMHIST_DECL(maphist);
UVMHIST_DECL      149 uvm/uvm.h      extern UVMHIST_DECL(pdhist);
UVMHIST_DECL      150 uvm/uvm.h      extern UVMHIST_DECL(pghist);
UVMHIST_DECL      107 uvm/uvm_map.c  UVMHIST_DECL(maphist);
UVMHIST_DECL      108 uvm/uvm_map.c  UVMHIST_DECL(pdhist);
UVMHIST_DECL      131 uvm/uvm_page.c UVMHIST_DECL(pghist);