26 #include "asm/macroAssembler.inline.hpp"
27 #include "compiler/compiler_globals.hpp"
28 #include "gc/shared/barrierSet.hpp"
29 #include "gc/shared/barrierSetAssembler.hpp"
30 #include "interp_masm_aarch64.hpp"
31 #include "interpreter/interpreter.hpp"
32 #include "interpreter/interpreterRuntime.hpp"
33 #include "logging/log.hpp"
34 #include "oops/arrayOop.hpp"
35 #include "oops/markWord.hpp"
36 #include "oops/method.hpp"
37 #include "oops/methodData.hpp"
38 #include "oops/resolvedFieldEntry.hpp"
39 #include "oops/resolvedIndyEntry.hpp"
40 #include "oops/resolvedMethodEntry.hpp"
41 #include "prims/jvmtiExport.hpp"
42 #include "prims/jvmtiThreadState.hpp"
43 #include "runtime/basicLock.hpp"
44 #include "runtime/frame.inline.hpp"
45 #include "runtime/javaThread.hpp"
46 #include "runtime/safepointMechanism.hpp"
47 #include "runtime/sharedRuntime.hpp"
48 #include "utilities/powerOfTwo.hpp"
49
50 void InterpreterMacroAssembler::narrow(Register result) {
51
52 // Get method->_constMethod->_result_type
53 ldr(rscratch1, Address(rfp, frame::interpreter_frame_method_offset * wordSize));
54 ldr(rscratch1, Address(rscratch1, Method::const_offset()));
55 ldrb(rscratch1, Address(rscratch1, ConstMethod::result_type_offset()));
56
57 Label done, notBool, notByte, notChar;
58
59 // common case first
60 cmpw(rscratch1, T_INT);
61 br(Assembler::EQ, done);
62
63 // mask integer result to narrower return type.
64 cmpw(rscratch1, T_BOOLEAN);
65 br(Assembler::NE, notBool);
1406 increment_mdp_data_at(mdp,
1407 index,
1408 in_bytes(MultiBranchData::relative_count_offset()));
1409
1410 // The method data pointer needs to be updated.
1411 update_mdp_by_offset(mdp,
1412 index,
1413 in_bytes(MultiBranchData::
1414 relative_displacement_offset()));
1415
1416 bind(profile_continue);
1417 }
1418 }
1419
1420 void InterpreterMacroAssembler::_interp_verify_oop(Register reg, TosState state, const char* file, int line) {
1421 if (state == atos) {
1422 MacroAssembler::_verify_oop_checked(reg, "broken oop", file, line);
1423 }
1424 }
1425
1426 void InterpreterMacroAssembler::notify_method_entry() {
1427 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
1428 // track stack depth. If it is possible to enter interp_only_mode we add
1429 // the code to check if the event should be sent.
1430 if (JvmtiExport::can_post_interpreter_events()) {
1431 Label L;
1432 ldrw(r3, Address(rthread, JavaThread::interp_only_mode_offset()));
1433 cbzw(r3, L);
1434 call_VM(noreg, CAST_FROM_FN_PTR(address,
1435 InterpreterRuntime::post_method_entry));
1436 bind(L);
1437 }
1438
1439 if (DTraceMethodProbes) {
1440 get_method(c_rarg1);
1441 call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry),
1442 rthread, c_rarg1);
1443 }
1444
1445 // RedefineClasses() tracing support for obsolete method entry
1446 if (log_is_enabled(Trace, redefine, class, obsolete)) {
1447 get_method(c_rarg1);
1448 call_VM_leaf(
1449 CAST_FROM_FN_PTR(address, SharedRuntime::rc_trace_method_entry),
1450 rthread, c_rarg1);
1451 }
1452
1453 }
1454
1455
1456 void InterpreterMacroAssembler::notify_method_exit(
1457 TosState state, NotifyMethodExitMode mode) {
1458 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
1459 // track stack depth. If it is possible to enter interp_only_mode we add
1460 // the code to check if the event should be sent.
1461 if (mode == NotifyJVMTI && JvmtiExport::can_post_interpreter_events()) {
1462 Label L;
1463 // Note: frame::interpreter_frame_result has a dependency on how the
1464 // method result is saved across the call to post_method_exit. If this
1465 // is changed then the interpreter_frame_result implementation will
1466 // need to be updated too.
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26 #include "asm/macroAssembler.inline.hpp"
27 #include "compiler/compiler_globals.hpp"
28 #include "gc/shared/barrierSet.hpp"
29 #include "gc/shared/barrierSetAssembler.hpp"
30 #include "interp_masm_aarch64.hpp"
31 #include "interpreter/interpreter.hpp"
32 #include "interpreter/interpreterRuntime.hpp"
33 #include "logging/log.hpp"
34 #include "oops/arrayOop.hpp"
35 #include "oops/markWord.hpp"
36 #include "oops/method.hpp"
37 #include "oops/methodData.hpp"
38 #include "oops/resolvedFieldEntry.hpp"
39 #include "oops/resolvedIndyEntry.hpp"
40 #include "oops/resolvedMethodEntry.hpp"
41 #include "prims/jvmtiExport.hpp"
42 #include "prims/jvmtiThreadState.hpp"
43 #include "runtime/basicLock.hpp"
44 #include "runtime/frame.inline.hpp"
45 #include "runtime/javaThread.hpp"
46 #include "runtime/runtimeUpcalls.hpp"
47 #include "runtime/safepointMechanism.hpp"
48 #include "runtime/sharedRuntime.hpp"
49 #include "utilities/powerOfTwo.hpp"
50
51 void InterpreterMacroAssembler::narrow(Register result) {
52
53 // Get method->_constMethod->_result_type
54 ldr(rscratch1, Address(rfp, frame::interpreter_frame_method_offset * wordSize));
55 ldr(rscratch1, Address(rscratch1, Method::const_offset()));
56 ldrb(rscratch1, Address(rscratch1, ConstMethod::result_type_offset()));
57
58 Label done, notBool, notByte, notChar;
59
60 // common case first
61 cmpw(rscratch1, T_INT);
62 br(Assembler::EQ, done);
63
64 // mask integer result to narrower return type.
65 cmpw(rscratch1, T_BOOLEAN);
66 br(Assembler::NE, notBool);
1407 increment_mdp_data_at(mdp,
1408 index,
1409 in_bytes(MultiBranchData::relative_count_offset()));
1410
1411 // The method data pointer needs to be updated.
1412 update_mdp_by_offset(mdp,
1413 index,
1414 in_bytes(MultiBranchData::
1415 relative_displacement_offset()));
1416
1417 bind(profile_continue);
1418 }
1419 }
1420
1421 void InterpreterMacroAssembler::_interp_verify_oop(Register reg, TosState state, const char* file, int line) {
1422 if (state == atos) {
1423 MacroAssembler::_verify_oop_checked(reg, "broken oop", file, line);
1424 }
1425 }
1426
1427 void InterpreterMacroAssembler::generate_runtime_upcalls_on_method_entry()
1428 {
1429 address upcall = RuntimeUpcalls::on_method_entry_upcall_address();
1430 if (RuntimeUpcalls::does_upcall_need_method_parameter(upcall)) {
1431 get_method(c_rarg1);
1432 call_VM(noreg,upcall, c_rarg1);
1433 } else {
1434 call_VM(noreg,upcall);
1435 }
1436 }
1437
1438 void InterpreterMacroAssembler::notify_method_entry() {
1439 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
1440 // track stack depth. If it is possible to enter interp_only_mode we add
1441 // the code to check if the event should be sent.
1442 if (JvmtiExport::can_post_interpreter_events()) {
1443 Label L;
1444 ldrw(r3, Address(rthread, JavaThread::interp_only_mode_offset()));
1445 cbzw(r3, L);
1446 call_VM(noreg, CAST_FROM_FN_PTR(address,
1447 InterpreterRuntime::post_method_entry));
1448 bind(L);
1449 }
1450
1451 if (DTraceMethodProbes) {
1452 get_method(c_rarg1);
1453 call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry),
1454 rthread, c_rarg1);
1455 }
1456
1457 // RedefineClasses() tracing support for obsolete method entry
1458 if (log_is_enabled(Trace, redefine, class, obsolete) ||
1459 log_is_enabled(Trace, interpreter, bytecode)) {
1460 get_method(c_rarg1);
1461 call_VM_leaf(
1462 CAST_FROM_FN_PTR(address, SharedRuntime::rc_trace_method_entry),
1463 rthread, c_rarg1);
1464 }
1465
1466 }
1467
1468
1469 void InterpreterMacroAssembler::notify_method_exit(
1470 TosState state, NotifyMethodExitMode mode) {
1471 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
1472 // track stack depth. If it is possible to enter interp_only_mode we add
1473 // the code to check if the event should be sent.
1474 if (mode == NotifyJVMTI && JvmtiExport::can_post_interpreter_events()) {
1475 Label L;
1476 // Note: frame::interpreter_frame_result has a dependency on how the
1477 // method result is saved across the call to post_method_exit. If this
1478 // is changed then the interpreter_frame_result implementation will
1479 // need to be updated too.
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