400 // as set up by generate_method_handle_interpreter_entry():
401 // - G5: garbage temp (was MethodHandle.invoke methodOop, unused)
402 // - G3: receiver method handle
403 // - O5_savedSP: sender SP (must preserve)
404
405 const Register O0_argslot = O0;
406 const Register O1_scratch = O1;
407 const Register O2_scratch = O2;
408 const Register O3_scratch = O3;
409 const Register G5_index = G5;
410
411 // Argument registers for _raise_exception.
412 const Register O0_code = O0;
413 const Register O1_actual = O1;
414 const Register O2_required = O2;
415
416 guarantee(java_dyn_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets");
417
418 // Some handy addresses:
419 Address G5_method_fie( G5_method, in_bytes(methodOopDesc::from_interpreted_offset()));
420
421 Address G3_mh_vmtarget( G3_method_handle, java_dyn_MethodHandle::vmtarget_offset_in_bytes());
422
423 Address G3_dmh_vmindex( G3_method_handle, sun_dyn_DirectMethodHandle::vmindex_offset_in_bytes());
424
425 Address G3_bmh_vmargslot( G3_method_handle, sun_dyn_BoundMethodHandle::vmargslot_offset_in_bytes());
426 Address G3_bmh_argument( G3_method_handle, sun_dyn_BoundMethodHandle::argument_offset_in_bytes());
427
428 Address G3_amh_vmargslot( G3_method_handle, sun_dyn_AdapterMethodHandle::vmargslot_offset_in_bytes());
429 Address G3_amh_argument ( G3_method_handle, sun_dyn_AdapterMethodHandle::argument_offset_in_bytes());
430 Address G3_amh_conversion(G3_method_handle, sun_dyn_AdapterMethodHandle::conversion_offset_in_bytes());
431
432 const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes();
433
434 if (have_entry(ek)) {
435 __ nop(); // empty stubs make SG sick
436 return;
437 }
438
439 address interp_entry = __ pc();
440
441 trace_method_handle(_masm, entry_name(ek));
442
443 switch ((int) ek) {
444 case _raise_exception:
445 {
446 // Not a real MH entry, but rather shared code for raising an
447 // exception. Since we use a C2I adapter to set up the
448 // interpreter state, arguments are expected in compiler
449 // argument registers.
450 assert(raise_exception_method(), "must be set");
451 address c2i_entry = raise_exception_method()->get_c2i_entry();
452 assert(c2i_entry, "method must be linked");
453
454 __ mov(O5_savedSP, SP); // Cut the stack back to where the caller started.
455
456 Label L_no_method;
457 // FIXME: fill in _raise_exception_method with a suitable sun.dyn method
458 __ set(AddressLiteral((address) &_raise_exception_method), G5_method);
459 __ ld_ptr(Address(G5_method, 0), G5_method);
460 __ tst(G5_method);
461 __ brx(Assembler::zero, false, Assembler::pn, L_no_method);
462 __ delayed()->nop();
463
464 const int jobject_oop_offset = 0;
465 __ ld_ptr(Address(G5_method, jobject_oop_offset), G5_method);
466 __ tst(G5_method);
467 __ brx(Assembler::zero, false, Assembler::pn, L_no_method);
468 __ delayed()->nop();
469
470 __ verify_oop(G5_method);
471 __ jump_to(AddressLiteral(c2i_entry), O3_scratch);
472 __ delayed()->nop();
473
474 // If we get here, the Java runtime did not do its job of creating the exception.
475 // Do something that is at least causes a valid throw from the interpreter.
476 __ bind(L_no_method);
477 __ unimplemented("call throw_WrongMethodType_entry");
478 }
479 break;
480
481 case _invokestatic_mh:
482 case _invokespecial_mh:
483 {
484 __ load_heap_oop(G3_mh_vmtarget, G5_method); // target is a methodOop
485 __ verify_oop(G5_method);
486 // Same as TemplateTable::invokestatic or invokespecial,
487 // minus the CP setup and profiling:
488 if (ek == _invokespecial_mh) {
489 // Must load & check the first argument before entering the target method.
490 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch);
491 __ ld_ptr(__ argument_address(O0_argslot), G3_method_handle);
492 __ null_check(G3_method_handle);
493 __ verify_oop(G3_method_handle);
494 }
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400 // as set up by generate_method_handle_interpreter_entry():
401 // - G5: garbage temp (was MethodHandle.invoke methodOop, unused)
402 // - G3: receiver method handle
403 // - O5_savedSP: sender SP (must preserve)
404
405 const Register O0_argslot = O0;
406 const Register O1_scratch = O1;
407 const Register O2_scratch = O2;
408 const Register O3_scratch = O3;
409 const Register G5_index = G5;
410
411 // Argument registers for _raise_exception.
412 const Register O0_code = O0;
413 const Register O1_actual = O1;
414 const Register O2_required = O2;
415
416 guarantee(java_dyn_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets");
417
418 // Some handy addresses:
419 Address G5_method_fie( G5_method, in_bytes(methodOopDesc::from_interpreted_offset()));
420 Address G5_method_fce( G5_method, in_bytes(methodOopDesc::from_compiled_offset()));
421
422 Address G3_mh_vmtarget( G3_method_handle, java_dyn_MethodHandle::vmtarget_offset_in_bytes());
423
424 Address G3_dmh_vmindex( G3_method_handle, sun_dyn_DirectMethodHandle::vmindex_offset_in_bytes());
425
426 Address G3_bmh_vmargslot( G3_method_handle, sun_dyn_BoundMethodHandle::vmargslot_offset_in_bytes());
427 Address G3_bmh_argument( G3_method_handle, sun_dyn_BoundMethodHandle::argument_offset_in_bytes());
428
429 Address G3_amh_vmargslot( G3_method_handle, sun_dyn_AdapterMethodHandle::vmargslot_offset_in_bytes());
430 Address G3_amh_argument ( G3_method_handle, sun_dyn_AdapterMethodHandle::argument_offset_in_bytes());
431 Address G3_amh_conversion(G3_method_handle, sun_dyn_AdapterMethodHandle::conversion_offset_in_bytes());
432
433 const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes();
434
435 if (have_entry(ek)) {
436 __ nop(); // empty stubs make SG sick
437 return;
438 }
439
440 address interp_entry = __ pc();
441
442 trace_method_handle(_masm, entry_name(ek));
443
444 switch ((int) ek) {
445 case _raise_exception:
446 {
447 // Not a real MH entry, but rather shared code for raising an
448 // exception. Since we use the compiled entry, arguments are
449 // expected in compiler argument registers.
450 assert(raise_exception_method(), "must be set");
451 assert(raise_exception_method()->from_compiled_entry(), "method must be linked");
452
453 __ mov(O5_savedSP, SP); // Cut the stack back to where the caller started.
454
455 Label L_no_method;
456 // FIXME: fill in _raise_exception_method with a suitable sun.dyn method
457 __ set(AddressLiteral((address) &_raise_exception_method), G5_method);
458 __ ld_ptr(Address(G5_method, 0), G5_method);
459 __ tst(G5_method);
460 __ brx(Assembler::zero, false, Assembler::pn, L_no_method);
461 __ delayed()->nop();
462
463 const int jobject_oop_offset = 0;
464 __ ld_ptr(Address(G5_method, jobject_oop_offset), G5_method);
465 __ tst(G5_method);
466 __ brx(Assembler::zero, false, Assembler::pn, L_no_method);
467 __ delayed()->nop();
468
469 __ verify_oop(G5_method);
470 __ jump_indirect_to(G5_method_fce, O3_scratch); // jump to compiled entry
471 __ delayed()->nop();
472
473 // Do something that is at least causes a valid throw from the interpreter.
474 __ bind(L_no_method);
475 __ unimplemented("call throw_WrongMethodType_entry");
476 }
477 break;
478
479 case _invokestatic_mh:
480 case _invokespecial_mh:
481 {
482 __ load_heap_oop(G3_mh_vmtarget, G5_method); // target is a methodOop
483 __ verify_oop(G5_method);
484 // Same as TemplateTable::invokestatic or invokespecial,
485 // minus the CP setup and profiling:
486 if (ek == _invokespecial_mh) {
487 // Must load & check the first argument before entering the target method.
488 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch);
489 __ ld_ptr(__ argument_address(O0_argslot), G3_method_handle);
490 __ null_check(G3_method_handle);
491 __ verify_oop(G3_method_handle);
492 }
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