870   // Stack overflow checking

   870   // Stack overflow checking

   871   void bang_stack_with_offset(int offset) {

   871   void bang_stack_with_offset(int offset) {

   872     // stack grows down, caller passes positive offset

   872     // stack grows down, caller passes positive offset

   873     assert(offset > 0, "must bang with negative offset");

   873     assert(offset > 0, "must bang with negative offset");

   874     mov(rscratch2, -offset);

   874     mov(rscratch2, -offset);

   876   }

   876   }

   877 

   877 

   878   // Writes to stack successive pages until offset reached to check for

   878   // Writes to stack successive pages until offset reached to check for

   879   // stack overflow + shadow pages.  Also, clobbers tmp

   879   // stack overflow + shadow pages.  Also, clobbers tmp

   880   void bang_stack_size(Register size, Register tmp);

   880   void bang_stack_size(Register size, Register tmp);