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);
1252 increment_mdp_data_at(mdp,
1253 index,
1254 in_bytes(MultiBranchData::relative_count_offset()));
1255
1256 // The method data pointer needs to be updated.
1257 update_mdp_by_offset(mdp,
1258 index,
1259 in_bytes(MultiBranchData::
1260 relative_displacement_offset()));
1261
1262 bind(profile_continue);
1263 }
1264 }
1265
1266 void InterpreterMacroAssembler::_interp_verify_oop(Register reg, TosState state, const char* file, int line) {
1267 if (state == atos) {
1268 MacroAssembler::_verify_oop_checked(reg, "broken oop", file, line);
1269 }
1270 }
1271
1272 void InterpreterMacroAssembler::notify_method_entry() {
1273 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
1274 // track stack depth. If it is possible to enter interp_only_mode we add
1275 // the code to check if the event should be sent.
1276 if (JvmtiExport::can_post_interpreter_events()) {
1277 Label L;
1278 ldrw(r3, Address(rthread, JavaThread::interp_only_mode_offset()));
1279 cbzw(r3, L);
1280 call_VM(noreg, CAST_FROM_FN_PTR(address,
1281 InterpreterRuntime::post_method_entry));
1282 bind(L);
1283 }
1284
1285 if (DTraceMethodProbes) {
1286 get_method(c_rarg1);
1287 call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry),
1288 rthread, c_rarg1);
1289 }
1290
1291 // RedefineClasses() tracing support for obsolete method entry
1292 if (log_is_enabled(Trace, redefine, class, obsolete)) {
1293 get_method(c_rarg1);
1294 call_VM_leaf(
1295 CAST_FROM_FN_PTR(address, SharedRuntime::rc_trace_method_entry),
1296 rthread, c_rarg1);
1297 }
1298
1299 }
1300
1301
1302 void InterpreterMacroAssembler::notify_method_exit(
1303 TosState state, NotifyMethodExitMode mode) {
1304 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
1305 // track stack depth. If it is possible to enter interp_only_mode we add
1306 // the code to check if the event should be sent.
1307 if (mode == NotifyJVMTI && JvmtiExport::can_post_interpreter_events()) {
1308 Label L;
1309 // Note: frame::interpreter_frame_result has a dependency on how the
1310 // method result is saved across the call to post_method_exit. If this
1311 // is changed then the interpreter_frame_result implementation will
1312 // 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);
1253 increment_mdp_data_at(mdp,
1254 index,
1255 in_bytes(MultiBranchData::relative_count_offset()));
1256
1257 // The method data pointer needs to be updated.
1258 update_mdp_by_offset(mdp,
1259 index,
1260 in_bytes(MultiBranchData::
1261 relative_displacement_offset()));
1262
1263 bind(profile_continue);
1264 }
1265 }
1266
1267 void InterpreterMacroAssembler::_interp_verify_oop(Register reg, TosState state, const char* file, int line) {
1268 if (state == atos) {
1269 MacroAssembler::_verify_oop_checked(reg, "broken oop", file, line);
1270 }
1271 }
1272
1273 void InterpreterMacroAssembler::generate_runtime_upcalls_on_method_entry()
1274 {
1275 address upcall = RuntimeUpcalls::on_method_entry_upcall_address();
1276 if (RuntimeUpcalls::does_upcall_need_method_parameter(upcall)) {
1277 get_method(c_rarg1);
1278 call_VM(noreg,upcall, c_rarg1);
1279 } else {
1280 call_VM(noreg,upcall);
1281 }
1282 }
1283
1284 void InterpreterMacroAssembler::notify_method_entry() {
1285 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
1286 // track stack depth. If it is possible to enter interp_only_mode we add
1287 // the code to check if the event should be sent.
1288 if (JvmtiExport::can_post_interpreter_events()) {
1289 Label L;
1290 ldrw(r3, Address(rthread, JavaThread::interp_only_mode_offset()));
1291 cbzw(r3, L);
1292 call_VM(noreg, CAST_FROM_FN_PTR(address,
1293 InterpreterRuntime::post_method_entry));
1294 bind(L);
1295 }
1296
1297 if (DTraceMethodProbes) {
1298 get_method(c_rarg1);
1299 call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry),
1300 rthread, c_rarg1);
1301 }
1302
1303 // RedefineClasses() tracing support for obsolete method entry
1304 if (log_is_enabled(Trace, redefine, class, obsolete) ||
1305 log_is_enabled(Trace, interpreter, bytecode)) {
1306 get_method(c_rarg1);
1307 call_VM_leaf(
1308 CAST_FROM_FN_PTR(address, SharedRuntime::rc_trace_method_entry),
1309 rthread, c_rarg1);
1310 }
1311
1312 }
1313
1314
1315 void InterpreterMacroAssembler::notify_method_exit(
1316 TosState state, NotifyMethodExitMode mode) {
1317 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
1318 // track stack depth. If it is possible to enter interp_only_mode we add
1319 // the code to check if the event should be sent.
1320 if (mode == NotifyJVMTI && JvmtiExport::can_post_interpreter_events()) {
1321 Label L;
1322 // Note: frame::interpreter_frame_result has a dependency on how the
1323 // method result is saved across the call to post_method_exit. If this
1324 // is changed then the interpreter_frame_result implementation will
1325 // need to be updated too.
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