> openjdk builds on hppa, but doesn't run (yet). Andrew Haley once debugged it > and found out at least one things which would need to be fixed: the > assumption in the C++ interpreter that the stack always grows downwards, and > not upwards as on hppa. > > please could one of the hotspot developers sched some light on this, how easy > this might to be fix, and if there are other assumptions?
Could you give more detail on where exactly the direction of growth is being assumed? I know there's an accessor in frame that's supposed to describe the direction of growth of the expression stack which is used a few places in the code: // expression stack (may go up or down, direction == 1 or -1) public: intptr_t* interpreter_frame_expression_stack() const; static jint interpreter_frame_expression_stack_direction(); I would think this has to be set correctly for HPPA to work. Is it? It's possible that the C++ interpreter would also need to consult this when pushing values for it to work correctly. tom > > thanks, Matthias -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
