Ejemplo n.º 1
0
void CompiledStaticCall::verify() {
  // Verify call.
  NativeCall::verify();
  if (os::is_MP()) {
    verify_alignment();
  }

  // Verify stub.
  address stub = find_stub();
  assert(stub != NULL, "no stub found for static call");
  // Creation also verifies the object.
  NativeMovConstReg* method_holder = nativeMovConstReg_at(stub);
  NativeJump*        jump          = nativeJump_at(method_holder->next_instruction_address());

  // Verify state.
  assert(is_clean() || is_call_to_compiled() || is_call_to_interpreted(), "sanity check");
}
Ejemplo n.º 2
0
void CompiledStaticCall::set_to_interpreted(methodHandle callee, address entry) {
  address stub=find_stub();
  assert(stub!=NULL, "stub not found");

  if (TraceICs) {
    ResourceMark rm;
    tty->print_cr("CompiledStaticCall@" INTPTR_FORMAT ": set_to_interpreted %s",
                  instruction_address(),
                  callee->name_and_sig_as_C_string());
  }

  NativeMovConstReg* method_holder = nativeMovConstReg_at(stub);   // creation also verifies the object
  NativeJump*        jump          = nativeJump_at(method_holder->next_instruction_address());

  assert(method_holder->data()    == 0           || method_holder->data()    == (intptr_t)callee(), "a) MT-unsafe modification of inline cache");
  assert(jump->jump_destination() == (address)-1 || jump->jump_destination() == entry, "b) MT-unsafe modification of inline cache");

  // Update stub
  method_holder->set_data((intptr_t)callee());
  jump->set_jump_destination(entry);

  // Update jump to call
  set_destination_mt_safe(stub);
}
Ejemplo n.º 3
0
 static address     find_itable_stub(int itable_index) { return find_stub(false, itable_index); }
Ejemplo n.º 4
0
 static address     find_vtable_stub(int vtable_index) { return find_stub(true,  vtable_index); }