1 /*
2 * Copyright (c) 2011, 2024, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #include "precompiled.hpp"
25 #include "classfile/classLoaderData.inline.hpp"
26 #include "classfile/javaClasses.inline.hpp"
27 #include "classfile/stringTable.hpp"
28 #include "classfile/symbolTable.hpp"
29 #include "classfile/systemDictionary.hpp"
30 #include "classfile/vmClasses.hpp"
31 #include "code/scopeDesc.hpp"
32 #include "compiler/compileBroker.hpp"
33 #include "compiler/compilerEvent.hpp"
34 #include "compiler/compilerOracle.hpp"
35 #include "compiler/disassembler.hpp"
36 #include "compiler/oopMap.hpp"
37 #include "interpreter/bytecodeStream.hpp"
38 #include "interpreter/linkResolver.hpp"
39 #include "interpreter/oopMapCache.hpp"
40 #include "jfr/jfrEvents.hpp"
41 #include "jvmci/jvmciCodeInstaller.hpp"
42 #include "jvmci/jvmciCompilerToVM.hpp"
43 #include "jvmci/jvmciRuntime.hpp"
44 #include "logging/log.hpp"
45 #include "logging/logTag.hpp"
46 #include "memory/oopFactory.hpp"
47 #include "memory/universe.hpp"
48 #include "oops/constantPool.inline.hpp"
49 #include "oops/instanceKlass.inline.hpp"
50 #include "oops/instanceMirrorKlass.hpp"
51 #include "oops/method.inline.hpp"
52 #include "oops/objArrayKlass.inline.hpp"
53 #include "oops/typeArrayOop.inline.hpp"
54 #include "prims/jvmtiExport.hpp"
55 #include "prims/methodHandles.hpp"
56 #include "prims/nativeLookup.hpp"
57 #include "runtime/arguments.hpp"
58 #include "runtime/atomic.hpp"
59 #include "runtime/deoptimization.hpp"
60 #include "runtime/fieldDescriptor.inline.hpp"
61 #include "runtime/frame.inline.hpp"
62 #include "runtime/globals_extension.hpp"
63 #include "runtime/interfaceSupport.inline.hpp"
64 #include "runtime/jniHandles.inline.hpp"
65 #include "runtime/keepStackGCProcessed.hpp"
66 #include "runtime/reflection.hpp"
67 #include "runtime/stackFrameStream.inline.hpp"
68 #include "runtime/timerTrace.hpp"
69 #include "runtime/vframe.inline.hpp"
70 #include "runtime/vframe_hp.hpp"
71 #if INCLUDE_JFR
72 #include "jfr/jfr.hpp"
73 #endif
74
75 JVMCIKlassHandle::JVMCIKlassHandle(Thread* thread, Klass* klass) {
76 _thread = thread;
77 _klass = klass;
78 if (klass != nullptr) {
79 _holder = Handle(_thread, klass->klass_holder());
80 }
81 }
82
83 JVMCIKlassHandle& JVMCIKlassHandle::operator=(Klass* klass) {
84 _klass = klass;
85 if (klass != nullptr) {
86 _holder = Handle(_thread, klass->klass_holder());
87 }
88 return *this;
89 }
90
91 static void requireInHotSpot(const char* caller, JVMCI_TRAPS) {
92 if (!JVMCIENV->is_hotspot()) {
93 JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot call %s from JVMCI shared library", caller));
94 }
95 }
96
97 class JVMCITraceMark : public StackObj {
98 const char* _msg;
99 public:
100 JVMCITraceMark(const char* msg) {
101 _msg = msg;
102 JVMCI_event_2("Enter %s", _msg);
103 }
104 ~JVMCITraceMark() {
105 JVMCI_event_2(" Exit %s", _msg);
106 }
107 };
108
109 class JavaArgumentUnboxer : public SignatureIterator {
110 protected:
111 JavaCallArguments* _jca;
112 arrayOop _args;
113 int _index;
114
115 Handle next_arg(BasicType expectedType);
116
117 public:
118 JavaArgumentUnboxer(Symbol* signature,
119 JavaCallArguments* jca,
120 arrayOop args,
121 bool is_static)
122 : SignatureIterator(signature)
123 {
124 this->_return_type = T_ILLEGAL;
125 _jca = jca;
126 _index = 0;
127 _args = args;
128 if (!is_static) {
129 _jca->push_oop(next_arg(T_OBJECT));
130 }
131 do_parameters_on(this);
132 assert(_index == args->length(), "arg count mismatch with signature");
133 }
134
135 private:
136 friend class SignatureIterator; // so do_parameters_on can call do_type
137 void do_type(BasicType type) {
138 if (is_reference_type(type)) {
139 _jca->push_oop(next_arg(T_OBJECT));
140 return;
141 }
142 Handle arg = next_arg(type);
143 int box_offset = java_lang_boxing_object::value_offset(type);
144 switch (type) {
145 case T_BOOLEAN: _jca->push_int(arg->bool_field(box_offset)); break;
146 case T_CHAR: _jca->push_int(arg->char_field(box_offset)); break;
147 case T_SHORT: _jca->push_int(arg->short_field(box_offset)); break;
148 case T_BYTE: _jca->push_int(arg->byte_field(box_offset)); break;
149 case T_INT: _jca->push_int(arg->int_field(box_offset)); break;
150 case T_LONG: _jca->push_long(arg->long_field(box_offset)); break;
151 case T_FLOAT: _jca->push_float(arg->float_field(box_offset)); break;
152 case T_DOUBLE: _jca->push_double(arg->double_field(box_offset)); break;
153 default: ShouldNotReachHere();
154 }
155 }
156 };
157
158 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) {
159 assert(_index < _args->length(), "out of bounds");
160 oop arg=((objArrayOop) (_args))->obj_at(_index++);
161 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
162 return Handle(Thread::current(), arg);
163 }
164
165 // Bring the JVMCI compiler thread into the VM state.
166 #define JVMCI_VM_ENTRY_MARK \
167 MACOS_AARCH64_ONLY(ThreadWXEnable __wx(WXWrite, thread)); \
168 ThreadInVMfromNative __tiv(thread); \
169 HandleMarkCleaner __hm(thread); \
170 JavaThread* THREAD = thread; \
171 debug_only(VMNativeEntryWrapper __vew;)
172
173 // Native method block that transitions current thread to '_thread_in_vm'.
174 // Note: CompilerThreadCanCallJava must precede JVMCIENV_FROM_JNI so that
175 // the translation of an uncaught exception in the JVMCIEnv does not make
176 // a Java call when __is_hotspot == false.
177 #define C2V_BLOCK(result_type, name, signature) \
178 JVMCI_VM_ENTRY_MARK; \
179 ResourceMark rm; \
180 bool __is_hotspot = env == thread->jni_environment(); \
181 CompilerThreadCanCallJava ccj(thread, __is_hotspot); \
182 JVMCIENV_FROM_JNI(JVMCI::compilation_tick(thread), env); \
183
184 // Entry to native method implementation that transitions
185 // current thread to '_thread_in_vm'.
186 #define C2V_VMENTRY(result_type, name, signature) \
187 result_type JNICALL c2v_ ## name signature { \
188 JavaThread* thread = JavaThread::current_or_null(); \
189 if (thread == nullptr) { \
190 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
191 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
192 return; \
193 } \
194 C2V_BLOCK(result_type, name, signature) \
195 JVMCITraceMark jtm("CompilerToVM::" #name);
196
197 #define C2V_VMENTRY_(result_type, name, signature, result) \
198 result_type JNICALL c2v_ ## name signature { \
199 JavaThread* thread = JavaThread::current_or_null(); \
200 if (thread == nullptr) { \
201 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
202 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
203 return result; \
204 } \
205 C2V_BLOCK(result_type, name, signature) \
206 JVMCITraceMark jtm("CompilerToVM::" #name);
207
208 #define C2V_VMENTRY_NULL(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, nullptr)
209 #define C2V_VMENTRY_0(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, 0)
210
211 // Entry to native method implementation that does not transition
212 // current thread to '_thread_in_vm'.
213 #define C2V_VMENTRY_PREFIX(result_type, name, signature) \
214 result_type JNICALL c2v_ ## name signature { \
215 JavaThread* thread = JavaThread::current_or_null();
216
217 #define C2V_END }
218
219 #define JNI_THROW(caller, name, msg) do { \
220 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
221 if (__throw_res != JNI_OK) { \
222 JVMCI_event_1("Throwing " #name " in " caller " returned %d", __throw_res); \
223 } \
224 return; \
225 } while (0);
226
227 #define JNI_THROW_(caller, name, msg, result) do { \
228 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
229 if (__throw_res != JNI_OK) { \
230 JVMCI_event_1("Throwing " #name " in " caller " returned %d", __throw_res); \
231 } \
232 return result; \
233 } while (0)
234
235 jobjectArray readConfiguration0(JNIEnv *env, JVMCI_TRAPS);
236
237 C2V_VMENTRY_NULL(jobjectArray, readConfiguration, (JNIEnv* env))
238 jobjectArray config = readConfiguration0(env, JVMCI_CHECK_NULL);
239 return config;
240 }
241
242 C2V_VMENTRY_NULL(jobject, getFlagValue, (JNIEnv* env, jobject c2vm, jobject name_handle))
243 #define RETURN_BOXED_LONG(value) jvalue p; p.j = (jlong) (value); JVMCIObject box = JVMCIENV->create_box(T_LONG, &p, JVMCI_CHECK_NULL); return box.as_jobject();
244 #define RETURN_BOXED_DOUBLE(value) jvalue p; p.d = (jdouble) (value); JVMCIObject box = JVMCIENV->create_box(T_DOUBLE, &p, JVMCI_CHECK_NULL); return box.as_jobject();
245 JVMCIObject name = JVMCIENV->wrap(name_handle);
246 if (name.is_null()) {
247 JVMCI_THROW_NULL(NullPointerException);
248 }
249 const char* cstring = JVMCIENV->as_utf8_string(name);
250 const JVMFlag* flag = JVMFlag::find_declared_flag(cstring);
251 if (flag == nullptr) {
252 return c2vm;
253 }
254 if (flag->is_bool()) {
255 jvalue prim;
256 prim.z = flag->get_bool();
257 JVMCIObject box = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL);
258 return JVMCIENV->get_jobject(box);
259 } else if (flag->is_ccstr()) {
260 JVMCIObject value = JVMCIENV->create_string(flag->get_ccstr(), JVMCI_CHECK_NULL);
261 return JVMCIENV->get_jobject(value);
262 } else if (flag->is_intx()) {
263 RETURN_BOXED_LONG(flag->get_intx());
264 } else if (flag->is_int()) {
265 RETURN_BOXED_LONG(flag->get_int());
266 } else if (flag->is_uint()) {
267 RETURN_BOXED_LONG(flag->get_uint());
268 } else if (flag->is_uint64_t()) {
269 RETURN_BOXED_LONG(flag->get_uint64_t());
270 } else if (flag->is_size_t()) {
271 RETURN_BOXED_LONG(flag->get_size_t());
272 } else if (flag->is_uintx()) {
273 RETURN_BOXED_LONG(flag->get_uintx());
274 } else if (flag->is_double()) {
275 RETURN_BOXED_DOUBLE(flag->get_double());
276 } else {
277 JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->name(), flag->type_string());
278 }
279 #undef RETURN_BOXED_LONG
280 #undef RETURN_BOXED_DOUBLE
281 C2V_END
282
283 // Macros for argument pairs representing a wrapper object and its wrapped VM pointer
284 #define ARGUMENT_PAIR(name) jobject name ## _obj, jlong name ## _pointer
285 #define UNPACK_PAIR(type, name) ((type*) name ## _pointer)
286
287 C2V_VMENTRY_NULL(jbyteArray, getBytecode, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
288 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
289
290 int code_size = method->code_size();
291 jbyte* reconstituted_code = NEW_RESOURCE_ARRAY(jbyte, code_size);
292
293 guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
294 // iterate over all bytecodes and replace non-Java bytecodes
295
296 for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
297 Bytecodes::Code code = s.code();
298 Bytecodes::Code raw_code = s.raw_code();
299 int bci = s.bci();
300 int len = s.instruction_size();
301
302 // Restore original byte code.
303 reconstituted_code[bci] = (jbyte) (s.is_wide()? Bytecodes::_wide : code);
304 if (len > 1) {
305 memcpy(reconstituted_code + (bci + 1), s.bcp()+1, len-1);
306 }
307
308 if (len > 1) {
309 // Restore the big-endian constant pool indexes.
310 // Cf. Rewriter::scan_method
311 switch (code) {
312 case Bytecodes::_getstatic:
313 case Bytecodes::_putstatic:
314 case Bytecodes::_getfield:
315 case Bytecodes::_putfield:
316 case Bytecodes::_invokevirtual:
317 case Bytecodes::_invokespecial:
318 case Bytecodes::_invokestatic:
319 case Bytecodes::_invokeinterface:
320 case Bytecodes::_invokehandle: {
321 int cp_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
322 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
323 break;
324 }
325
326 case Bytecodes::_invokedynamic: {
327 int cp_index = Bytes::get_native_u4((address) reconstituted_code + (bci + 1));
328 Bytes::put_Java_u4((address) reconstituted_code + (bci + 1), (u4) cp_index);
329 break;
330 }
331
332 default:
333 break;
334 }
335
336 // Not all ldc byte code are rewritten.
337 switch (raw_code) {
338 case Bytecodes::_fast_aldc: {
339 int cpc_index = reconstituted_code[bci + 1] & 0xff;
340 int cp_index = method->constants()->object_to_cp_index(cpc_index);
341 assert(cp_index < method->constants()->length(), "sanity check");
342 reconstituted_code[bci + 1] = (jbyte) cp_index;
343 break;
344 }
345
346 case Bytecodes::_fast_aldc_w: {
347 int cpc_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
348 int cp_index = method->constants()->object_to_cp_index(cpc_index);
349 assert(cp_index < method->constants()->length(), "sanity check");
350 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
351 break;
352 }
353
354 default:
355 break;
356 }
357 }
358 }
359
360 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
361 JVMCIENV->copy_bytes_from(reconstituted_code, result, 0, code_size);
362 return JVMCIENV->get_jbyteArray(result);
363 C2V_END
364
365 C2V_VMENTRY_0(jint, getExceptionTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
366 Method* method = UNPACK_PAIR(Method, method);
367 return method->exception_table_length();
368 C2V_END
369
370 C2V_VMENTRY_0(jlong, getExceptionTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
371 Method* method = UNPACK_PAIR(Method, method);
372 if (method->exception_table_length() == 0) {
373 return 0L;
374 }
375 return (jlong) (address) method->exception_table_start();
376 C2V_END
377
378 C2V_VMENTRY_NULL(jobject, asResolvedJavaMethod, (JNIEnv* env, jobject, jobject executable_handle))
379 requireInHotSpot("asResolvedJavaMethod", JVMCI_CHECK_NULL);
380 oop executable = JNIHandles::resolve(executable_handle);
381 oop mirror = nullptr;
382 int slot = 0;
383
384 if (executable->klass() == vmClasses::reflect_Constructor_klass()) {
385 mirror = java_lang_reflect_Constructor::clazz(executable);
386 slot = java_lang_reflect_Constructor::slot(executable);
387 } else {
388 assert(executable->klass() == vmClasses::reflect_Method_klass(), "wrong type");
389 mirror = java_lang_reflect_Method::clazz(executable);
390 slot = java_lang_reflect_Method::slot(executable);
391 }
392 Klass* holder = java_lang_Class::as_Klass(mirror);
393 methodHandle method (THREAD, InstanceKlass::cast(holder)->method_with_idnum(slot));
394 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
395 return JVMCIENV->get_jobject(result);
396 }
397
398 C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset))
399 Method* method = nullptr;
400 JVMCIObject base_object = JVMCIENV->wrap(base);
401 if (base_object.is_null()) {
402 method = *((Method**)(offset));
403 } else {
404 Handle obj = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
405 if (obj->is_a(vmClasses::ResolvedMethodName_klass())) {
406 method = (Method*) (intptr_t) obj->long_field(offset);
407 } else {
408 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", obj->klass()->external_name()));
409 }
410 }
411 if (method == nullptr) {
412 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
413 }
414 assert (method->is_method(), "invalid read");
415 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, method), JVMCI_CHECK_NULL);
416 return JVMCIENV->get_jobject(result);
417 }
418
419 C2V_VMENTRY_NULL(jobject, getConstantPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass_or_method), jboolean is_klass))
420 ConstantPool* cp = nullptr;
421 if (UNPACK_PAIR(address, klass_or_method) == 0) {
422 JVMCI_THROW_NULL(NullPointerException);
423 }
424 if (!is_klass) {
425 cp = (UNPACK_PAIR(Method, klass_or_method))->constMethod()->constants();
426 } else {
427 cp = InstanceKlass::cast(UNPACK_PAIR(Klass, klass_or_method))->constants();
428 }
429
430 JVMCIObject result = JVMCIENV->get_jvmci_constant_pool(constantPoolHandle(THREAD, cp), JVMCI_CHECK_NULL);
431 return JVMCIENV->get_jobject(result);
432 }
433
434 C2V_VMENTRY_NULL(jobject, getResolvedJavaType0, (JNIEnv* env, jobject, jobject base, jlong offset, jboolean compressed))
435 JVMCIObject base_object = JVMCIENV->wrap(base);
436 if (base_object.is_null()) {
437 JVMCI_THROW_MSG_NULL(NullPointerException, "base object is null");
438 }
439
440 const char* base_desc = nullptr;
441 JVMCIKlassHandle klass(THREAD);
442 if (offset == oopDesc::klass_offset_in_bytes()) {
443 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
444 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
445 klass = base_oop->klass();
446 } else {
447 goto unexpected;
448 }
449 } else if (!compressed) {
450 if (JVMCIENV->isa_HotSpotConstantPool(base_object)) {
451 ConstantPool* cp = JVMCIENV->asConstantPool(base_object);
452 if (offset == in_bytes(ConstantPool::pool_holder_offset())) {
453 klass = cp->pool_holder();
454 } else {
455 base_desc = FormatBufferResource("[constant pool for %s]", cp->pool_holder()->signature_name());
456 goto unexpected;
457 }
458 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
459 Klass* base_klass = JVMCIENV->asKlass(base_object);
460 if (offset == in_bytes(Klass::subklass_offset())) {
461 klass = base_klass->subklass();
462 } else if (offset == in_bytes(Klass::super_offset())) {
463 klass = base_klass->super();
464 } else if (offset == in_bytes(Klass::next_sibling_offset())) {
465 klass = base_klass->next_sibling();
466 } else if (offset == in_bytes(ObjArrayKlass::element_klass_offset()) && base_klass->is_objArray_klass()) {
467 klass = ObjArrayKlass::cast(base_klass)->element_klass();
468 } else if (offset >= in_bytes(Klass::primary_supers_offset()) &&
469 offset < in_bytes(Klass::primary_supers_offset()) + (int) (sizeof(Klass*) * Klass::primary_super_limit()) &&
470 offset % sizeof(Klass*) == 0) {
471 // Offset is within the primary supers array
472 int index = (int) ((offset - in_bytes(Klass::primary_supers_offset())) / sizeof(Klass*));
473 klass = base_klass->primary_super_of_depth(index);
474 } else {
475 base_desc = FormatBufferResource("[%s]", base_klass->signature_name());
476 goto unexpected;
477 }
478 } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
479 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
480 if (base_oop->is_a(vmClasses::Class_klass())) {
481 if (offset == java_lang_Class::klass_offset()) {
482 klass = java_lang_Class::as_Klass(base_oop());
483 } else if (offset == java_lang_Class::array_klass_offset()) {
484 klass = java_lang_Class::array_klass_acquire(base_oop());
485 } else {
486 base_desc = FormatBufferResource("[Class=%s]", java_lang_Class::as_Klass(base_oop())->signature_name());
487 goto unexpected;
488 }
489 } else {
490 if (!base_oop.is_null()) {
491 base_desc = FormatBufferResource("[%s]", base_oop()->klass()->signature_name());
492 }
493 goto unexpected;
494 }
495 } else if (JVMCIENV->isa_HotSpotMethodData(base_object)) {
496 jlong base_address = (intptr_t) JVMCIENV->asMethodData(base_object);
497 klass = *((Klass**) (intptr_t) (base_address + offset));
498 if (klass == nullptr || !klass->is_loader_alive()) {
499 // Klasses in methodData might be concurrently unloading so return null in that case.
500 return nullptr;
501 }
502 } else {
503 goto unexpected;
504 }
505 } else {
506 goto unexpected;
507 }
508
509 {
510 if (klass == nullptr) {
511 return nullptr;
512 }
513 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
514 return JVMCIENV->get_jobject(result);
515 }
516
517 unexpected:
518 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
519 err_msg("Unexpected arguments: %s%s " JLONG_FORMAT " %s",
520 JVMCIENV->klass_name(base_object), base_desc == nullptr ? "" : base_desc,
521 offset, compressed ? "true" : "false"));
522 }
523
524 C2V_VMENTRY_NULL(jobject, findUniqueConcreteMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method)))
525 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
526 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass));
527 if (holder->is_interface()) {
528 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Interface %s should be handled in Java code", holder->external_name()));
529 }
530 if (method->can_be_statically_bound()) {
531 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Effectively static method %s.%s should be handled in Java code", method->method_holder()->external_name(), method->external_name()));
532 }
533
534 methodHandle ucm;
535 {
536 MutexLocker locker(Compile_lock);
537 ucm = methodHandle(THREAD, Dependencies::find_unique_concrete_method(holder, method()));
538 }
539 JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL);
540 return JVMCIENV->get_jobject(result);
541 C2V_END
542
543 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
544 Klass* klass = UNPACK_PAIR(Klass, klass);
545 if (!klass->is_interface()) {
546 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
547 err_msg("Expected interface type, got %s", klass->external_name()));
548 }
549 InstanceKlass* iklass = InstanceKlass::cast(klass);
550 JVMCIKlassHandle handle(THREAD, iklass->implementor());
551 JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
552 return JVMCIENV->get_jobject(implementor);
553 C2V_END
554
555 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
556 Method* method = UNPACK_PAIR(Method, method);
557 return method->is_ignored_by_security_stack_walk();
558 C2V_END
559
560 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
561 Method* method = UNPACK_PAIR(Method, method);
562 // Skip redefined methods
563 if (method->is_old()) {
564 return false;
565 }
566 return !method->is_not_compilable(CompLevel_full_optimization);
567 C2V_END
568
569 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
570 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
571 return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
572 C2V_END
573
574 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
575 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
576 return CompilerOracle::should_inline(method) || method->force_inline();
577 C2V_END
578
579 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, ARGUMENT_PAIR(accessing_klass), jint accessing_klass_loader, jboolean resolve))
580 CompilerThreadCanCallJava canCallJava(thread, resolve); // Resolution requires Java calls
581 JVMCIObject name = JVMCIENV->wrap(jname);
582 const char* str = JVMCIENV->as_utf8_string(name);
583 TempNewSymbol class_name = SymbolTable::new_symbol(str);
584
585 if (class_name->utf8_length() <= 1) {
586 JVMCI_THROW_MSG_0(InternalError, err_msg("Primitive type %s should be handled in Java code", str));
587 }
588
589 #ifdef ASSERT
590 const char* val = Arguments::PropertyList_get_value(Arguments::system_properties(), "test.jvmci.lookupTypeException");
591 if (val != nullptr) {
592 if (strstr(val, "<trace>") != nullptr) {
593 tty->print_cr("CompilerToVM.lookupType: %s", str);
594 } else if (strstr(str, val) != nullptr) {
595 THROW_MSG_0(vmSymbols::java_lang_Exception(),
596 err_msg("lookupTypeException: %s", str));
597 }
598 }
599 #endif
600
601 JVMCIKlassHandle resolved_klass(THREAD);
602 Klass* accessing_klass = UNPACK_PAIR(Klass, accessing_klass);
603 Handle class_loader;
604 Handle protection_domain;
605 if (accessing_klass != nullptr) {
606 class_loader = Handle(THREAD, accessing_klass->class_loader());
607 protection_domain = Handle(THREAD, accessing_klass->protection_domain());
608 } else {
609 switch (accessing_klass_loader) {
610 case 0: break; // class_loader is already null, the boot loader
611 case 1: class_loader = Handle(THREAD, SystemDictionary::java_platform_loader()); break;
612 case 2: class_loader = Handle(THREAD, SystemDictionary::java_system_loader()); break;
613 default:
614 JVMCI_THROW_MSG_0(InternalError, err_msg("Illegal class loader value: %d", accessing_klass_loader));
615 }
616 JVMCIENV->runtime()->initialize(JVMCI_CHECK_NULL);
617 }
618
619 if (resolve) {
620 resolved_klass = SystemDictionary::resolve_or_fail(class_name, class_loader, protection_domain, true, CHECK_NULL);
621 } else {
622 if (Signature::has_envelope(class_name)) {
623 // This is a name from a signature. Strip off the trimmings.
624 // Call recursive to keep scope of strippedsym.
625 TempNewSymbol strippedsym = Signature::strip_envelope(class_name);
626 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym,
627 class_loader,
628 protection_domain);
629 } else if (Signature::is_array(class_name)) {
630 SignatureStream ss(class_name, false);
631 int ndim = ss.skip_array_prefix();
632 if (ss.type() == T_OBJECT) {
633 Symbol* strippedsym = ss.as_symbol();
634 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym,
635 class_loader,
636 protection_domain);
637 if (!resolved_klass.is_null()) {
638 resolved_klass = resolved_klass->array_klass(ndim, CHECK_NULL);
639 }
640 } else {
641 resolved_klass = Universe::typeArrayKlass(ss.type())->array_klass(ndim, CHECK_NULL);
642 }
643 } else {
644 resolved_klass = SystemDictionary::find_instance_klass(THREAD, class_name,
645 class_loader,
646 protection_domain);
647 }
648 }
649 JVMCIObject result = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
650 return JVMCIENV->get_jobject(result);
651 C2V_END
652
653 C2V_VMENTRY_NULL(jobject, getArrayType, (JNIEnv* env, jobject, jchar type_char, ARGUMENT_PAIR(klass)))
654 JVMCIKlassHandle array_klass(THREAD);
655 Klass* klass = UNPACK_PAIR(Klass, klass);
656 if (klass == nullptr) {
657 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
658 if (type == T_VOID) {
659 return nullptr;
660 }
661 array_klass = Universe::typeArrayKlass(type);
662 if (array_klass == nullptr) {
663 JVMCI_THROW_MSG_NULL(InternalError, err_msg("No array klass for primitive type %s", type2name(type)));
664 }
665 } else {
666 array_klass = klass->array_klass(CHECK_NULL);
667 }
668 JVMCIObject result = JVMCIENV->get_jvmci_type(array_klass, JVMCI_CHECK_NULL);
669 return JVMCIENV->get_jobject(result);
670 C2V_END
671
672 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror))
673 requireInHotSpot("lookupClass", JVMCI_CHECK_NULL);
674 if (mirror == nullptr) {
675 return nullptr;
676 }
677 JVMCIKlassHandle klass(THREAD);
678 klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
679 if (klass == nullptr) {
680 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported");
681 }
682 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
683 return JVMCIENV->get_jobject(result);
684 C2V_END
685
686 C2V_VMENTRY_NULL(jobject, lookupJClass, (JNIEnv* env, jobject, jlong jclass_value))
687 if (jclass_value == 0L) {
688 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass must not be zero");
689 }
690 jclass mirror = reinterpret_cast<jclass>(jclass_value);
691 // Since the jclass_value is passed as a jlong, we perform additional checks to prevent the caller from accidentally
692 // sending a value that is not a JNI handle.
693 if (JNIHandles::handle_type(thread, mirror) == JNIInvalidRefType) {
694 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass is not a valid JNI reference");
695 }
696 oop obj = JNIHandles::resolve(mirror);
697 if (!java_lang_Class::is_instance(obj)) {
698 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass must be a reference to the Class object");
699 }
700 JVMCIKlassHandle klass(THREAD, java_lang_Class::as_Klass(obj));
701 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
702 return JVMCIENV->get_jobject(result);
703 C2V_END
704
705 C2V_VMENTRY_NULL(jobject, getUncachedStringInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
706 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
707 constantTag tag = cp->tag_at(index);
708 if (!tag.is_string()) {
709 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
710 }
711 oop obj = cp->uncached_string_at(index, CHECK_NULL);
712 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
713 C2V_END
714
715 C2V_VMENTRY_NULL(jobject, lookupConstantInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint cp_index, bool resolve))
716 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
717 oop obj;
718 if (!resolve) {
719 bool found_it;
720 obj = cp->find_cached_constant_at(cp_index, found_it, CHECK_NULL);
721 if (!found_it) {
722 return nullptr;
723 }
724 } else {
725 obj = cp->resolve_possibly_cached_constant_at(cp_index, CHECK_NULL);
726 }
727 constantTag tag = cp->tag_at(cp_index);
728 if (tag.is_dynamic_constant()) {
729 if (obj == nullptr) {
730 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
731 }
732 BasicType bt = Signature::basic_type(cp->uncached_signature_ref_at(cp_index));
733 if (!is_reference_type(bt)) {
734 if (!is_java_primitive(bt)) {
735 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
736 }
737
738 // Convert standard box (e.g. java.lang.Integer) to JVMCI box (e.g. jdk.vm.ci.meta.PrimitiveConstant)
739 jvalue value;
740 jlong raw_value;
741 jchar type_char;
742 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
743 assert(bt2 == bt, "");
744 switch (bt2) {
745 case T_LONG: type_char = 'J'; raw_value = value.j; break;
746 case T_DOUBLE: type_char = 'D'; raw_value = value.j; break;
747 case T_FLOAT: type_char = 'F'; raw_value = value.i; break;
748 case T_INT: type_char = 'I'; raw_value = value.i; break;
749 case T_SHORT: type_char = 'S'; raw_value = value.s; break;
750 case T_BYTE: type_char = 'B'; raw_value = value.b; break;
751 case T_CHAR: type_char = 'C'; raw_value = value.c; break;
752 case T_BOOLEAN: type_char = 'Z'; raw_value = value.z; break;
753 default: return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
754 }
755
756 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, raw_value, JVMCI_CHECK_NULL);
757 return JVMCIENV->get_jobject(result);
758 }
759 }
760 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
761 C2V_END
762
763 C2V_VMENTRY_NULL(jobjectArray, resolveBootstrapMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
764 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
765 constantTag tag = cp->tag_at(index);
766 bool is_indy = tag.is_invoke_dynamic();
767 bool is_condy = tag.is_dynamic_constant();
768 if (!(is_condy || is_indy)) {
769 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
770 }
771 // Get the indy entry based on CP index
772 int indy_index = -1;
773 if (is_indy) {
774 for (int i = 0; i < cp->resolved_indy_entries_length(); i++) {
775 if (cp->resolved_indy_entry_at(i)->constant_pool_index() == index) {
776 indy_index = i;
777 }
778 }
779 }
780 // Resolve the bootstrap specifier, its name, type, and static arguments
781 BootstrapInfo bootstrap_specifier(cp, index, indy_index);
782 Handle bsm = bootstrap_specifier.resolve_bsm(CHECK_NULL);
783
784 // call java.lang.invoke.MethodHandle::asFixedArity() -> MethodHandle
785 // to get a DirectMethodHandle from which we can then extract a Method*
786 JavaValue result(T_OBJECT);
787 JavaCalls::call_virtual(&result,
788 bsm,
789 vmClasses::MethodHandle_klass(),
790 vmSymbols::asFixedArity_name(),
791 vmSymbols::asFixedArity_signature(),
792 CHECK_NULL);
793 bsm = Handle(THREAD, result.get_oop());
794
795 // Check assumption about getting a DirectMethodHandle
796 if (!java_lang_invoke_DirectMethodHandle::is_instance(bsm())) {
797 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Unexpected MethodHandle subclass: %s", bsm->klass()->external_name()));
798 }
799 // Create return array describing the bootstrap method invocation (BSMI)
800 JVMCIObjectArray bsmi = JVMCIENV->new_Object_array(4, JVMCI_CHECK_NULL);
801
802 // Extract Method* and wrap it in a ResolvedJavaMethod
803 Handle member = Handle(THREAD, java_lang_invoke_DirectMethodHandle::member(bsm()));
804 JVMCIObject bsmi_method = JVMCIENV->get_jvmci_method(methodHandle(THREAD, java_lang_invoke_MemberName::vmtarget(member())), JVMCI_CHECK_NULL);
805 JVMCIENV->put_object_at(bsmi, 0, bsmi_method);
806
807 JVMCIObject bsmi_name = JVMCIENV->create_string(bootstrap_specifier.name(), JVMCI_CHECK_NULL);
808 JVMCIENV->put_object_at(bsmi, 1, bsmi_name);
809
810 Handle type_arg = bootstrap_specifier.type_arg();
811 JVMCIObject bsmi_type = JVMCIENV->get_object_constant(type_arg());
812 JVMCIENV->put_object_at(bsmi, 2, bsmi_type);
813
814 Handle arg_values = bootstrap_specifier.arg_values();
815 if (arg_values.not_null()) {
816 if (!arg_values->is_array()) {
817 JVMCIENV->put_object_at(bsmi, 3, JVMCIENV->get_object_constant(arg_values()));
818 } else if (arg_values->is_objArray()) {
819 objArrayHandle args_array = objArrayHandle(THREAD, (objArrayOop) arg_values());
820 int len = args_array->length();
821 JVMCIObjectArray arguments = JVMCIENV->new_JavaConstant_array(len, JVMCI_CHECK_NULL);
822 JVMCIENV->put_object_at(bsmi, 3, arguments);
823 for (int i = 0; i < len; i++) {
824 oop x = args_array->obj_at(i);
825 if (x != nullptr) {
826 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_object_constant(x));
827 } else {
828 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_JavaConstant_NULL_POINTER());
829 }
830 }
831 } else if (arg_values->is_typeArray()) {
832 typeArrayHandle bsci = typeArrayHandle(THREAD, (typeArrayOop) arg_values());
833 JVMCIPrimitiveArray arguments = JVMCIENV->new_intArray(bsci->length(), JVMCI_CHECK_NULL);
834 JVMCIENV->put_object_at(bsmi, 3, arguments);
835 for (int i = 0; i < bsci->length(); i++) {
836 JVMCIENV->put_int_at(arguments, i, bsci->int_at(i));
837 }
838 }
839 }
840 return JVMCIENV->get_jobjectArray(bsmi);
841 C2V_END
842
843 C2V_VMENTRY_0(jint, bootstrapArgumentIndexAt, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint cpi, jint index))
844 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
845 return cp->bootstrap_argument_index_at(cpi, index);
846 C2V_END
847
848 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode))
849 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
850 return cp->name_and_type_ref_index_at(index, (Bytecodes::Code)opcode);
851 C2V_END
852
853 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode))
854 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
855 JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which, (Bytecodes::Code)opcode), JVMCI_CHECK_NULL);
856 return JVMCIENV->get_jobject(sym);
857 C2V_END
858
859 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode))
860 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
861 JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which, (Bytecodes::Code)opcode), JVMCI_CHECK_NULL);
862 return JVMCIENV->get_jobject(sym);
863 C2V_END
864
865 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode))
866 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
867 return cp->klass_ref_index_at(index, (Bytecodes::Code)opcode);
868 C2V_END
869
870 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
871 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
872 Klass* klass = cp->klass_at(index, CHECK_NULL);
873 JVMCIKlassHandle resolved_klass(THREAD, klass);
874 if (resolved_klass->is_instance_klass()) {
875 InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL);
876 if (!InstanceKlass::cast(resolved_klass())->is_linked()) {
877 // link_class() should not return here if there is an issue.
878 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name()));
879 }
880 }
881 JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
882 return JVMCIENV->get_jobject(klassObject);
883 C2V_END
884
885 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
886 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
887 Klass* loading_klass = cp->pool_holder();
888 bool is_accessible = false;
889 JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass));
890 Symbol* symbol = nullptr;
891 if (klass.is_null()) {
892 constantTag tag = cp->tag_at(index);
893 if (tag.is_klass()) {
894 // The klass has been inserted into the constant pool
895 // very recently.
896 klass = cp->resolved_klass_at(index);
897 } else if (tag.is_symbol()) {
898 symbol = cp->symbol_at(index);
899 } else {
900 assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag");
901 symbol = cp->klass_name_at(index);
902 }
903 }
904 JVMCIObject result;
905 if (!klass.is_null()) {
906 result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
907 } else {
908 result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL);
909 }
910 return JVMCIENV->get_jobject(result);
911 C2V_END
912
913 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode))
914 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
915 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, which, Bytecodes::Code(opcode));
916 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop));
917 C2V_END
918
919 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jbyte opcode, ARGUMENT_PAIR(caller)))
920 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
921 methodHandle caller(THREAD, UNPACK_PAIR(Method, caller));
922 InstanceKlass* pool_holder = cp->pool_holder();
923 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
924 methodHandle method(THREAD, JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder));
925 JFR_ONLY(if (method.not_null()) Jfr::on_resolution(caller(), method(), CHECK_NULL);)
926 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
927 return JVMCIENV->get_jobject(result);
928 C2V_END
929
930 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, ARGUMENT_PAIR(method), jbyte opcode, jintArray info_handle))
931 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
932 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
933 fieldDescriptor fd;
934 methodHandle mh(THREAD, UNPACK_PAIR(Method, method));
935
936 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
937 int holder_index = cp->klass_ref_index_at(index, bc);
938 if (!cp->tag_at(holder_index).is_klass() && !THREAD->can_call_java()) {
939 // If the holder is not resolved in the constant pool and the current
940 // thread cannot call Java, return null. This avoids a Java call
941 // in LinkInfo to load the holder.
942 Symbol* klass_name = cp->klass_ref_at_noresolve(index, bc);
943 return nullptr;
944 }
945
946 LinkInfo link_info(cp, index, mh, code, CHECK_NULL);
947 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_NULL);
948 JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle);
949 if (info.is_null() || JVMCIENV->get_length(info) != 4) {
950 JVMCI_ERROR_NULL("info must not be null and have a length of 4");
951 }
952 JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int());
953 JVMCIENV->put_int_at(info, 1, fd.offset());
954 JVMCIENV->put_int_at(info, 2, fd.index());
955 JVMCIENV->put_int_at(info, 3, fd.field_flags().as_uint());
956 JVMCIKlassHandle handle(THREAD, fd.field_holder());
957 JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
958 return JVMCIENV->get_jobject(field_holder);
959 C2V_END
960
961 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method)))
962 Klass* klass = UNPACK_PAIR(Klass, klass);
963 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
964 InstanceKlass* holder = method->method_holder();
965 if (klass->is_interface()) {
966 JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name()));
967 }
968 if (!holder->is_interface()) {
969 JVMCI_THROW_MSG_0(InternalError, err_msg("Method %s is not held by an interface, this case should be handled in Java code", method->name_and_sig_as_C_string()));
970 }
971 if (!klass->is_instance_klass()) {
972 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
973 }
974 if (!InstanceKlass::cast(klass)->is_linked()) {
975 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name()));
976 }
977 if (!klass->is_subtype_of(holder)) {
978 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s does not implement interface %s", klass->external_name(), holder->external_name()));
979 }
980 return LinkResolver::vtable_index_of_interface_method(klass, method);
981 C2V_END
982
983 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(receiver), ARGUMENT_PAIR(method), ARGUMENT_PAIR(caller)))
984 Klass* recv_klass = UNPACK_PAIR(Klass, receiver);
985 Klass* caller_klass = UNPACK_PAIR(Klass, caller);
986 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
987
988 Klass* resolved = method->method_holder();
989 Symbol* h_name = method->name();
990 Symbol* h_signature = method->signature();
991
992 if (MethodHandles::is_signature_polymorphic_method(method())) {
993 // Signature polymorphic methods are already resolved, JVMCI just returns null in this case.
994 return nullptr;
995 }
996
997 if (method->name() == vmSymbols::clone_name() &&
998 resolved == vmClasses::Object_klass() &&
999 recv_klass->is_array_klass()) {
1000 // Resolution of the clone method on arrays always returns Object.clone even though that method
1001 // has protected access. There's some trickery in the access checking to make this all work out
1002 // so it's necessary to pass in the array class as the resolved class to properly trigger this.
1003 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See
1004 // LinkResolver::check_method_accessability for the matching logic.
1005 resolved = recv_klass;
1006 }
1007
1008 LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
1009 Method* m = nullptr;
1010 // Only do exact lookup if receiver klass has been linked. Otherwise,
1011 // the vtable has not been setup, and the LinkResolver will fail.
1012 if (recv_klass->is_array_klass() ||
1013 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
1014 if (resolved->is_interface()) {
1015 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
1016 } else {
1017 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
1018 }
1019 }
1020
1021 if (m == nullptr) {
1022 // Return null if there was a problem with lookup (uninitialized class, etc.)
1023 return nullptr;
1024 }
1025
1026 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, m), JVMCI_CHECK_NULL);
1027 return JVMCIENV->get_jobject(result);
1028 C2V_END
1029
1030 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1031 Klass* klass = UNPACK_PAIR(Klass, klass);
1032 assert(klass != nullptr, "method must not be called for primitive types");
1033 if (!klass->is_instance_klass()) {
1034 return false;
1035 }
1036 InstanceKlass* iklass = InstanceKlass::cast(klass);
1037 return Dependencies::find_finalizable_subclass(iklass) != nullptr;
1038 C2V_END
1039
1040 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1041 Klass* klass = UNPACK_PAIR(Klass, klass);
1042 if (!klass->is_instance_klass()) {
1043 return nullptr;
1044 }
1045 InstanceKlass* iklass = InstanceKlass::cast(klass);
1046 methodHandle clinit(THREAD, iklass->class_initializer());
1047 JVMCIObject result = JVMCIENV->get_jvmci_method(clinit, JVMCI_CHECK_NULL);
1048 return JVMCIENV->get_jobject(result);
1049 C2V_END
1050
1051 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr))
1052 address target_addr = (address) addr;
1053 if (target_addr != 0x0) {
1054 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
1055 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
1056 return MAX2(ABS(off_low), ABS(off_high));
1057 }
1058 return -1;
1059 C2V_END
1060
1061 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1062 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1063 method->set_is_not_c1_compilable();
1064 method->set_is_not_c2_compilable();
1065 method->set_dont_inline(true);
1066 C2V_END
1067
1068 C2V_VMENTRY_0(jint, getInstallCodeFlags, (JNIEnv *env, jobject))
1069 int flags = 0;
1070 #ifndef PRODUCT
1071 flags |= 0x0001; // VM will install block comments
1072 flags |= 0x0004; // Enable HotSpotJVMCIRuntime.Option.CodeSerializationTypeInfo if not explicitly set
1073 #endif
1074 if (JvmtiExport::can_hotswap_or_post_breakpoint()) {
1075 // VM needs to track method dependencies
1076 flags |= 0x0002;
1077 }
1078 return flags;
1079 C2V_END
1080
1081 C2V_VMENTRY_0(jint, installCode0, (JNIEnv *env, jobject,
1082 jlong compiled_code_buffer,
1083 jlong serialization_ns,
1084 bool with_type_info,
1085 jobject compiled_code,
1086 jobjectArray object_pool,
1087 jobject installed_code,
1088 jlong failed_speculations_address,
1089 jbyteArray speculations_obj))
1090 HandleMark hm(THREAD);
1091 JNIHandleMark jni_hm(thread);
1092
1093 JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
1094 objArrayHandle object_pool_handle(thread, JVMCIENV->is_hotspot() ? (objArrayOop) JNIHandles::resolve(object_pool) : nullptr);
1095
1096 CodeBlob* cb = nullptr;
1097 JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code);
1098 JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj);
1099
1100 int speculations_len = JVMCIENV->get_length(speculations_handle);
1101 char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len);
1102 JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len);
1103
1104 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR);
1105 JVMCICompiler::CodeInstallStats* stats = compiler->code_install_stats(!thread->is_Compiler_thread());
1106 elapsedTimer *timer = stats->timer();
1107 timer->add_nanoseconds(serialization_ns);
1108 TraceTime install_time("installCode", timer);
1109
1110 CodeInstaller installer(JVMCIENV);
1111 JVMCINMethodHandle nmethod_handle(THREAD);
1112
1113 JVMCI::CodeInstallResult result = installer.install(compiler,
1114 compiled_code_buffer,
1115 with_type_info,
1116 compiled_code_handle,
1117 object_pool_handle,
1118 cb,
1119 nmethod_handle,
1120 installed_code_handle,
1121 (FailedSpeculation**)(address) failed_speculations_address,
1122 speculations,
1123 speculations_len,
1124 JVMCI_CHECK_0);
1125
1126 if (PrintCodeCacheOnCompilation) {
1127 stringStream s;
1128 // Dump code cache into a buffer before locking the tty,
1129 {
1130 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
1131 CodeCache::print_summary(&s, false);
1132 }
1133 ttyLocker ttyl;
1134 tty->print_raw_cr(s.freeze());
1135 }
1136
1137 if (result != JVMCI::ok) {
1138 assert(cb == nullptr, "should be");
1139 } else {
1140 stats->on_install(cb);
1141 if (installed_code_handle.is_non_null()) {
1142 if (cb->is_nmethod()) {
1143 assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type");
1144 // Clear the link to an old nmethod first
1145 JVMCIObject nmethod_mirror = installed_code_handle;
1146 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, true, JVMCI_CHECK_0);
1147 } else {
1148 assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type");
1149 }
1150 // Initialize the link to the new code blob
1151 JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0);
1152 }
1153 }
1154 return result;
1155 C2V_END
1156
1157 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject))
1158 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK);
1159 CompilerStatistics* stats = compiler->stats();
1160 stats->_standard.reset();
1161 stats->_osr.reset();
1162 C2V_END
1163
1164 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode))
1165 HandleMark hm(THREAD);
1166
1167 if (installedCode == nullptr) {
1168 JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null");
1169 }
1170
1171 JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode);
1172 CodeBlob* cb = JVMCIENV->get_code_blob(installedCodeObject);
1173 if (cb == nullptr) {
1174 return nullptr;
1175 }
1176
1177 // We don't want the stringStream buffer to resize during disassembly as it
1178 // uses scoped resource memory. If a nested function called during disassembly uses
1179 // a ResourceMark and the buffer expands within the scope of the mark,
1180 // the buffer becomes garbage when that scope is exited. Experience shows that
1181 // the disassembled code is typically about 10x the code size so a fixed buffer
1182 // sized to 20x code size plus a fixed amount for header info should be sufficient.
1183 int bufferSize = cb->code_size() * 20 + 1024;
1184 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
1185 stringStream st(buffer, bufferSize);
1186 Disassembler::decode(cb, &st);
1187 if (st.size() <= 0) {
1188 return nullptr;
1189 }
1190
1191 JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL);
1192 return JVMCIENV->get_jobject(result);
1193 C2V_END
1194
1195 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int bci))
1196 HandleMark hm(THREAD);
1197
1198 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1199 JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL);
1200 return JVMCIENV->get_jobject(element);
1201 C2V_END
1202
1203 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod))
1204 // The incoming arguments array would have to contain JavaConstants instead of regular objects
1205 // and the return value would have to be wrapped as a JavaConstant.
1206 requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL);
1207
1208 HandleMark hm(THREAD);
1209
1210 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1211 JVMCINMethodHandle nmethod_handle(THREAD);
1212 nmethod* nm = JVMCIENV->get_nmethod(nmethod_mirror, nmethod_handle);
1213 if (nm == nullptr || !nm->is_in_use()) {
1214 JVMCI_THROW_NULL(InvalidInstalledCodeException);
1215 }
1216 methodHandle mh(THREAD, nm->method());
1217 Symbol* signature = mh->signature();
1218 JavaCallArguments jca(mh->size_of_parameters());
1219
1220 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
1221 JavaValue result(jap.return_type());
1222 jca.set_alternative_target(Handle(THREAD, JNIHandles::resolve(nmethod_mirror.as_jobject())));
1223 JavaCalls::call(&result, mh, &jca, CHECK_NULL);
1224
1225 if (jap.return_type() == T_VOID) {
1226 return nullptr;
1227 } else if (is_reference_type(jap.return_type())) {
1228 return JNIHandles::make_local(THREAD, result.get_oop());
1229 } else {
1230 jvalue *value = (jvalue *) result.get_value_addr();
1231 // Narrow the value down if required (Important on big endian machines)
1232 switch (jap.return_type()) {
1233 case T_BOOLEAN:
1234 value->z = (jboolean) value->i;
1235 break;
1236 case T_BYTE:
1237 value->b = (jbyte) value->i;
1238 break;
1239 case T_CHAR:
1240 value->c = (jchar) value->i;
1241 break;
1242 case T_SHORT:
1243 value->s = (jshort) value->i;
1244 break;
1245 default:
1246 break;
1247 }
1248 JVMCIObject o = JVMCIENV->create_box(jap.return_type(), value, JVMCI_CHECK_NULL);
1249 return JVMCIENV->get_jobject(o);
1250 }
1251 C2V_END
1252
1253 C2V_VMENTRY_NULL(jlongArray, getLineNumberTable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1254 Method* method = UNPACK_PAIR(Method, method);
1255 if (!method->has_linenumber_table()) {
1256 return nullptr;
1257 }
1258 u2 num_entries = 0;
1259 CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
1260 while (streamForSize.read_pair()) {
1261 num_entries++;
1262 }
1263
1264 CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
1265 JVMCIPrimitiveArray result = JVMCIENV->new_longArray(2 * num_entries, JVMCI_CHECK_NULL);
1266
1267 int i = 0;
1268 jlong value;
1269 while (stream.read_pair()) {
1270 value = ((jlong) stream.bci());
1271 JVMCIENV->put_long_at(result, i, value);
1272 value = ((jlong) stream.line());
1273 JVMCIENV->put_long_at(result, i + 1, value);
1274 i += 2;
1275 }
1276
1277 return (jlongArray) JVMCIENV->get_jobject(result);
1278 C2V_END
1279
1280 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1281 Method* method = UNPACK_PAIR(Method, method);
1282 if (!method->has_localvariable_table()) {
1283 return 0;
1284 }
1285 return (jlong) (address) method->localvariable_table_start();
1286 C2V_END
1287
1288 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1289 Method* method = UNPACK_PAIR(Method, method);
1290 return method->localvariable_table_length();
1291 C2V_END
1292
1293 static MethodData* get_profiling_method_data(const methodHandle& method, TRAPS) {
1294 MethodData* method_data = method->method_data();
1295 if (method_data == nullptr) {
1296 method->build_profiling_method_data(method, CHECK_NULL);
1297 method_data = method->method_data();
1298 if (method_data == nullptr) {
1299 THROW_MSG_NULL(vmSymbols::java_lang_OutOfMemoryError(), "cannot allocate MethodData")
1300 }
1301 }
1302 return method_data;
1303 }
1304
1305 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1306 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1307 MethodCounters* mcs = method->method_counters();
1308 if (mcs != nullptr) {
1309 mcs->clear_counters();
1310 }
1311 NOT_PRODUCT(method->set_compiled_invocation_count(0));
1312
1313 nmethod* code = method->code();
1314 if (code != nullptr) {
1315 code->make_not_entrant();
1316 }
1317
1318 MethodData* method_data = method->method_data();
1319 if (method_data == nullptr) {
1320 method_data = get_profiling_method_data(method, CHECK);
1321 } else {
1322 method_data->initialize();
1323 }
1324 C2V_END
1325
1326
1327 C2V_VMENTRY(void, invalidateHotSpotNmethod, (JNIEnv* env, jobject, jobject hs_nmethod, jboolean deoptimize))
1328 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1329 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, deoptimize, JVMCI_CHECK);
1330 C2V_END
1331
1332 C2V_VMENTRY_NULL(jlongArray, collectCounters, (JNIEnv* env, jobject))
1333 // Returns a zero length array if counters aren't enabled
1334 JVMCIPrimitiveArray array = JVMCIENV->new_longArray(JVMCICounterSize, JVMCI_CHECK_NULL);
1335 if (JVMCICounterSize > 0) {
1336 jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize);
1337 JavaThread::collect_counters(temp_array, JVMCICounterSize);
1338 JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize);
1339 }
1340 return (jlongArray) JVMCIENV->get_jobject(array);
1341 C2V_END
1342
1343 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject))
1344 return (jint) JVMCICounterSize;
1345 C2V_END
1346
1347 C2V_VMENTRY_0(jboolean, setCountersSize, (JNIEnv* env, jobject, jint new_size))
1348 return JavaThread::resize_all_jvmci_counters(new_size);
1349 C2V_END
1350
1351 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int entry_bci))
1352 HandleMark hm(THREAD);
1353 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1354 if (method.is_null()) {
1355 JVMCI_THROW_0(NullPointerException);
1356 }
1357 if (entry_bci >= method->code_size() || entry_bci < -1) {
1358 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci));
1359 }
1360 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
1361 C2V_END
1362
1363
1364 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong method_data_pointer))
1365 MethodData* mdo = (MethodData*) method_data_pointer;
1366 return mdo != nullptr && mdo->is_mature();
1367 C2V_END
1368
1369 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int entry_bci, int comp_level))
1370 Method* method = UNPACK_PAIR(Method, method);
1371 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != nullptr;
1372 C2V_END
1373
1374 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol))
1375 JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL);
1376 return JVMCIENV->get_jobject(sym);
1377 C2V_END
1378
1379 C2V_VMENTRY_NULL(jobject, getSignatureName, (JNIEnv* env, jobject, jlong klass_pointer))
1380 Klass* klass = UNPACK_PAIR(Klass, klass);
1381 JVMCIObject signature = JVMCIENV->create_string(klass->signature_name(), JVMCI_CHECK_NULL);
1382 return JVMCIENV->get_jobject(signature);
1383 C2V_END
1384
1385 /*
1386 * Used by matches() to convert a ResolvedJavaMethod[] to an array of Method*.
1387 */
1388 static GrowableArray<Method*>* init_resolved_methods(jobjectArray methods, JVMCIEnv* JVMCIENV) {
1389 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1390 GrowableArray<Method*>* resolved_methods = new GrowableArray<Method*>(methods_oop->length());
1391 for (int i = 0; i < methods_oop->length(); i++) {
1392 oop resolved = methods_oop->obj_at(i);
1393 Method* resolved_method = nullptr;
1394 if (resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) {
1395 resolved_method = HotSpotJVMCI::asMethod(JVMCIENV, resolved);
1396 }
1397 resolved_methods->append(resolved_method);
1398 }
1399 return resolved_methods;
1400 }
1401
1402 /*
1403 * Used by c2v_iterateFrames to check if `method` matches one of the ResolvedJavaMethods in the `methods` array.
1404 * The ResolvedJavaMethod[] array is converted to a Method* array that is then cached in the resolved_methods_ref in/out parameter.
1405 * In case of a match, the matching ResolvedJavaMethod is returned in matched_jvmci_method_ref.
1406 */
1407 static bool matches(jobjectArray methods, Method* method, GrowableArray<Method*>** resolved_methods_ref, Handle* matched_jvmci_method_ref, Thread* THREAD, JVMCIEnv* JVMCIENV) {
1408 GrowableArray<Method*>* resolved_methods = *resolved_methods_ref;
1409 if (resolved_methods == nullptr) {
1410 resolved_methods = init_resolved_methods(methods, JVMCIENV);
1411 *resolved_methods_ref = resolved_methods;
1412 }
1413 assert(method != nullptr, "method should not be null");
1414 assert(resolved_methods->length() == ((objArrayOop) JNIHandles::resolve(methods))->length(), "arrays must have the same length");
1415 for (int i = 0; i < resolved_methods->length(); i++) {
1416 Method* m = resolved_methods->at(i);
1417 if (m == method) {
1418 *matched_jvmci_method_ref = Handle(THREAD, ((objArrayOop) JNIHandles::resolve(methods))->obj_at(i));
1419 return true;
1420 }
1421 }
1422 return false;
1423 }
1424
1425 /*
1426 * Resolves an interface call to a concrete method handle.
1427 */
1428 static methodHandle resolve_interface_call(Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
1429 CallInfo callinfo;
1430 Handle receiver = args->receiver();
1431 Klass* recvrKlass = receiver.is_null() ? (Klass*)nullptr : receiver->klass();
1432 LinkInfo link_info(spec_klass, name, signature);
1433 LinkResolver::resolve_interface_call(
1434 callinfo, receiver, recvrKlass, link_info, true, CHECK_(methodHandle()));
1435 methodHandle method(THREAD, callinfo.selected_method());
1436 assert(method.not_null(), "should have thrown exception");
1437 return method;
1438 }
1439
1440 /*
1441 * Used by c2v_iterateFrames to make a new vframeStream at the given compiled frame id (stack pointer) and vframe id.
1442 */
1443 static void resync_vframestream_to_compiled_frame(vframeStream& vfst, intptr_t* stack_pointer, int vframe_id, JavaThread* thread, TRAPS) {
1444 vfst = vframeStream(thread);
1445 while (vfst.frame_id() != stack_pointer && !vfst.at_end()) {
1446 vfst.next();
1447 }
1448 if (vfst.frame_id() != stack_pointer) {
1449 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1450 }
1451 if (vfst.is_interpreted_frame()) {
1452 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1453 }
1454 while (vfst.vframe_id() != vframe_id) {
1455 if (vfst.at_end()) {
1456 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt")
1457 }
1458 vfst.next();
1459 assert(!vfst.is_interpreted_frame(), "Wrong frame type");
1460 }
1461 }
1462
1463 /*
1464 * Used by c2v_iterateFrames. Returns an array of any unallocated scope objects or null if none.
1465 */
1466 static GrowableArray<ScopeValue*>* get_unallocated_objects_or_null(GrowableArray<ScopeValue*>* scope_objects) {
1467 GrowableArray<ScopeValue*>* unallocated = nullptr;
1468 for (int i = 0; i < scope_objects->length(); i++) {
1469 ObjectValue* sv = (ObjectValue*) scope_objects->at(i);
1470 if (sv->value().is_null()) {
1471 if (unallocated == nullptr) {
1472 unallocated = new GrowableArray<ScopeValue*>(scope_objects->length());
1473 }
1474 unallocated->append(sv);
1475 }
1476 }
1477 return unallocated;
1478 }
1479
1480 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
1481
1482 if (!thread->has_last_Java_frame()) {
1483 return nullptr;
1484 }
1485 Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
1486 KeepStackGCProcessedMark keep_stack(THREAD);
1487
1488 requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL);
1489
1490 HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1491
1492 vframeStream vfst(thread);
1493 jobjectArray methods = initial_methods;
1494 methodHandle visitor_method;
1495 GrowableArray<Method*>* resolved_methods = nullptr;
1496
1497 while (!vfst.at_end()) { // frame loop
1498 bool realloc_called = false;
1499 intptr_t* frame_id = vfst.frame_id();
1500
1501 // Previous compiledVFrame of this frame; use with at_scope() to reuse scope object pool.
1502 compiledVFrame* prev_cvf = nullptr;
1503
1504 for (; !vfst.at_end() && vfst.frame_id() == frame_id; vfst.next()) { // vframe loop
1505 int frame_number = 0;
1506 Method *method = vfst.method();
1507 int bci = vfst.bci();
1508
1509 Handle matched_jvmci_method;
1510 if (methods == nullptr || matches(methods, method, &resolved_methods, &matched_jvmci_method, THREAD, JVMCIENV)) {
1511 if (initialSkip > 0) {
1512 initialSkip--;
1513 continue;
1514 }
1515 javaVFrame* vf;
1516 if (prev_cvf != nullptr && prev_cvf->frame_pointer()->id() == frame_id) {
1517 assert(prev_cvf->is_compiled_frame(), "expected compiled Java frame");
1518 vf = prev_cvf->at_scope(vfst.decode_offset(), vfst.vframe_id());
1519 } else {
1520 vf = vfst.asJavaVFrame();
1521 }
1522
1523 StackValueCollection* locals = nullptr;
1524 typeArrayHandle localIsVirtual_h;
1525 if (vf->is_compiled_frame()) {
1526 // compiled method frame
1527 compiledVFrame* cvf = compiledVFrame::cast(vf);
1528
1529 ScopeDesc* scope = cvf->scope();
1530 // native wrappers do not have a scope
1531 if (scope != nullptr && scope->objects() != nullptr) {
1532 prev_cvf = cvf;
1533
1534 GrowableArray<ScopeValue*>* objects = nullptr;
1535 if (!realloc_called) {
1536 objects = scope->objects();
1537 } else {
1538 // some object might already have been re-allocated, only reallocate the non-allocated ones
1539 objects = get_unallocated_objects_or_null(scope->objects());
1540 }
1541
1542 if (objects != nullptr) {
1543 RegisterMap reg_map(vf->register_map());
1544 bool realloc_failures = Deoptimization::realloc_objects(thread, vf->frame_pointer(), ®_map, objects, CHECK_NULL);
1545 Deoptimization::reassign_fields(vf->frame_pointer(), ®_map, objects, realloc_failures, false);
1546 realloc_called = true;
1547 }
1548
1549 GrowableArray<ScopeValue*>* local_values = scope->locals();
1550 for (int i = 0; i < local_values->length(); i++) {
1551 ScopeValue* value = local_values->at(i);
1552 assert(!value->is_object_merge(), "Should not be.");
1553 if (value->is_object()) {
1554 if (localIsVirtual_h.is_null()) {
1555 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1556 localIsVirtual_h = typeArrayHandle(THREAD, array_oop);
1557 }
1558 localIsVirtual_h->bool_at_put(i, true);
1559 }
1560 }
1561 }
1562
1563 locals = cvf->locals();
1564 frame_number = cvf->vframe_id();
1565 } else {
1566 // interpreted method frame
1567 interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1568
1569 locals = ivf->locals();
1570 }
1571 assert(bci == vf->bci(), "wrong bci");
1572 assert(method == vf->method(), "wrong method");
1573
1574 Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1575 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), bci);
1576 if (matched_jvmci_method.is_null()) {
1577 methodHandle mh(THREAD, method);
1578 JVMCIObject jvmci_method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1579 matched_jvmci_method = Handle(THREAD, JNIHandles::resolve(jvmci_method.as_jobject()));
1580 }
1581 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), matched_jvmci_method());
1582 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), localIsVirtual_h());
1583
1584 HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM));
1585 HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) frame_id);
1586 HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number);
1587
1588 // initialize the locals array
1589 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1590 objArrayHandle array(THREAD, array_oop);
1591 for (int i = 0; i < locals->size(); i++) {
1592 StackValue* var = locals->at(i);
1593 if (var->type() == T_OBJECT) {
1594 array->obj_at_put(i, locals->at(i)->get_obj()());
1595 }
1596 }
1597 HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array());
1598 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE);
1599
1600 JavaValue result(T_OBJECT);
1601 JavaCallArguments args(visitor);
1602 if (visitor_method.is_null()) {
1603 visitor_method = resolve_interface_call(HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL);
1604 }
1605
1606 args.push_oop(frame_reference);
1607 JavaCalls::call(&result, visitor_method, &args, CHECK_NULL);
1608 if (result.get_oop() != nullptr) {
1609 return JNIHandles::make_local(thread, result.get_oop());
1610 }
1611 if (methods == initial_methods) {
1612 methods = match_methods;
1613 if (resolved_methods != nullptr && JNIHandles::resolve(match_methods) != JNIHandles::resolve(initial_methods)) {
1614 resolved_methods = nullptr;
1615 }
1616 }
1617 assert(initialSkip == 0, "There should be no match before initialSkip == 0");
1618 if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) {
1619 // the frame has been deoptimized, we need to re-synchronize the frame and vframe
1620 prev_cvf = nullptr;
1621 intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference());
1622 resync_vframestream_to_compiled_frame(vfst, stack_pointer, frame_number, thread, CHECK_NULL);
1623 }
1624 }
1625 } // end of vframe loop
1626 } // end of frame loop
1627
1628 // the end was reached without finding a matching method
1629 return nullptr;
1630 C2V_END
1631
1632 C2V_VMENTRY_0(int, decodeIndyIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint indy_index, jboolean resolve))
1633 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1634 CallInfo callInfo;
1635 if (resolve) {
1636 LinkResolver::resolve_invoke(callInfo, Handle(), cp, indy_index, Bytecodes::_invokedynamic, CHECK_0);
1637 cp->cache()->set_dynamic_call(callInfo, indy_index);
1638 }
1639 return cp->resolved_indy_entry_at(indy_index)->constant_pool_index();
1640 C2V_END
1641
1642 C2V_VMENTRY_0(int, decodeFieldIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint field_index))
1643 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1644 if (field_index < 0 || field_index >= cp->resolved_field_entries_length()) {
1645 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("invalid field index %d", field_index));
1646 }
1647 return cp->resolved_field_entry_at(field_index)->constant_pool_index();
1648 C2V_END
1649
1650 C2V_VMENTRY_0(int, decodeMethodIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint method_index))
1651 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1652 if (method_index < 0 || method_index >= cp->resolved_method_entries_length()) {
1653 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("invalid method index %d", method_index));
1654 }
1655 return cp->resolved_method_entry_at(method_index)->constant_pool_index();
1656 C2V_END
1657
1658 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
1659 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1660 Klass* holder = cp->klass_ref_at(index, Bytecodes::_invokehandle, CHECK);
1661 Symbol* name = cp->name_ref_at(index, Bytecodes::_invokehandle);
1662 if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1663 CallInfo callInfo;
1664 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1665 cp->cache()->set_method_handle(index, callInfo);
1666 }
1667 C2V_END
1668
1669 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode))
1670 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1671 ResolvedMethodEntry* entry = cp->cache()->resolved_method_entry_at(index);
1672 if (entry->is_resolved(Bytecodes::_invokehandle)) {
1673 // MethodHandle.invoke* --> LambdaForm?
1674 ResourceMark rm;
1675
1676 LinkInfo link_info(cp, index, Bytecodes::_invokehandle, CATCH);
1677
1678 Klass* resolved_klass = link_info.resolved_klass();
1679
1680 Symbol* name_sym = cp->name_ref_at(index, Bytecodes::_invokehandle);
1681
1682 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1683 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1684
1685 methodHandle adapter_method(THREAD, entry->method());
1686
1687 methodHandle resolved_method(adapter_method);
1688
1689 // Can we treat it as a regular invokevirtual?
1690 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1691 vmassert(!resolved_method->is_static(),"!");
1692 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1693 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1694 vmassert(cp->cache()->appendix_if_resolved(entry) == nullptr, "!");
1695
1696 methodHandle m(THREAD, LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1697 vmassert(m == resolved_method, "!!");
1698 return -1;
1699 }
1700
1701 return Bytecodes::_invokevirtual;
1702 }
1703 if ((Bytecodes::Code)opcode == Bytecodes::_invokedynamic) {
1704 if (cp->resolved_indy_entry_at(index)->is_resolved()) {
1705 return Bytecodes::_invokedynamic;
1706 }
1707 }
1708 return -1;
1709 C2V_END
1710
1711
1712 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject))
1713 JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL);
1714 JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL);
1715 JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL);
1716 JVMCIENV->put_object_at(holders, 0, mh);
1717 JVMCIENV->put_object_at(holders, 1, vh);
1718 return JVMCIENV->get_jobject(holders);
1719 C2V_END
1720
1721 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject))
1722 //see compute_recording_non_safepoints in debugInfroRec.cpp
1723 if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1724 return true;
1725 }
1726 return DebugNonSafepoints;
1727 C2V_END
1728
1729 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1730 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate))
1731 JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame);
1732 if (hs_frame.is_null()) {
1733 JVMCI_THROW_MSG(NullPointerException, "stack frame is null");
1734 }
1735
1736 requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK);
1737
1738 JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK);
1739
1740 // look for the given stack frame
1741 StackFrameStream fst(thread, false /* update */, true /* process_frames */);
1742 intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame);
1743 while (fst.current()->id() != stack_pointer && !fst.is_done()) {
1744 fst.next();
1745 }
1746 if (fst.current()->id() != stack_pointer) {
1747 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found");
1748 }
1749
1750 if (invalidate) {
1751 if (!fst.current()->is_compiled_frame()) {
1752 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1753 }
1754 fst.current()->cb()->as_nmethod()->make_not_entrant();
1755 }
1756 Deoptimization::deoptimize(thread, *fst.current(), Deoptimization::Reason_none);
1757 // look for the frame again as it has been updated by deopt (pc, deopt state...)
1758 StackFrameStream fstAfterDeopt(thread, true /* update */, true /* process_frames */);
1759 while (fstAfterDeopt.current()->id() != stack_pointer && !fstAfterDeopt.is_done()) {
1760 fstAfterDeopt.next();
1761 }
1762 if (fstAfterDeopt.current()->id() != stack_pointer) {
1763 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found after deopt");
1764 }
1765
1766 vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1767 if (!vf->is_compiled_frame()) {
1768 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1769 }
1770
1771 GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1772 while (true) {
1773 assert(vf->is_compiled_frame(), "Wrong frame type");
1774 virtualFrames->push(compiledVFrame::cast(vf));
1775 if (vf->is_top()) {
1776 break;
1777 }
1778 vf = vf->sender();
1779 }
1780
1781 int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame);
1782 if (last_frame_number >= virtualFrames->length()) {
1783 JVMCI_THROW_MSG(IllegalStateException, "invalid frame number");
1784 }
1785
1786 // Reallocate the non-escaping objects and restore their fields.
1787 assert (virtualFrames->at(last_frame_number)->scope() != nullptr,"invalid scope");
1788 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1789
1790 if (objects == nullptr) {
1791 // no objects to materialize
1792 return;
1793 }
1794
1795 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK);
1796 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
1797
1798 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1799 compiledVFrame* cvf = virtualFrames->at(frame_index);
1800
1801 GrowableArray<ScopeValue*>* scopedValues = cvf->scope()->locals();
1802 StackValueCollection* locals = cvf->locals();
1803 if (locals != nullptr) {
1804 for (int i2 = 0; i2 < locals->size(); i2++) {
1805 StackValue* var = locals->at(i2);
1806 assert(!scopedValues->at(i2)->is_object_merge(), "Should not be.");
1807 if (var->type() == T_OBJECT && scopedValues->at(i2)->is_object()) {
1808 jvalue val;
1809 val.l = cast_from_oop<jobject>(locals->at(i2)->get_obj()());
1810 cvf->update_local(T_OBJECT, i2, val);
1811 }
1812 }
1813 }
1814
1815 GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1816 StackValueCollection* expressions = cvf->expressions();
1817 if (expressions != nullptr) {
1818 for (int i2 = 0; i2 < expressions->size(); i2++) {
1819 StackValue* var = expressions->at(i2);
1820 assert(!scopeExpressions->at(i2)->is_object_merge(), "Should not be.");
1821 if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) {
1822 jvalue val;
1823 val.l = cast_from_oop<jobject>(expressions->at(i2)->get_obj()());
1824 cvf->update_stack(T_OBJECT, i2, val);
1825 }
1826 }
1827 }
1828
1829 GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors();
1830 GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
1831 if (monitors != nullptr) {
1832 for (int i2 = 0; i2 < monitors->length(); i2++) {
1833 cvf->update_monitor(i2, monitors->at(i2));
1834 }
1835 }
1836 }
1837
1838 // all locals are materialized by now
1839 JVMCIENV->set_HotSpotStackFrameReference_localIsVirtual(hs_frame, nullptr);
1840 // update the locals array
1841 JVMCIObjectArray array = JVMCIENV->get_HotSpotStackFrameReference_locals(hs_frame);
1842 StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1843 for (int i = 0; i < locals->size(); i++) {
1844 StackValue* var = locals->at(i);
1845 if (var->type() == T_OBJECT) {
1846 JVMCIENV->put_object_at(array, i, HotSpotJVMCI::wrap(locals->at(i)->get_obj()()));
1847 }
1848 }
1849 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, hs_frame, JNI_TRUE);
1850 C2V_END
1851
1852 // Use of tty does not require the current thread to be attached to the VM
1853 // so no need for a full C2V_VMENTRY transition.
1854 C2V_VMENTRY_PREFIX(void, writeDebugOutput, (JNIEnv* env, jobject, jlong buffer, jint length, bool flush))
1855 if (length <= 8) {
1856 tty->write((char*) &buffer, length);
1857 } else {
1858 tty->write((char*) buffer, length);
1859 }
1860 if (flush) {
1861 tty->flush();
1862 }
1863 C2V_END
1864
1865 // Use of tty does not require the current thread to be attached to the VM
1866 // so no need for a full C2V_VMENTRY transition.
1867 C2V_VMENTRY_PREFIX(void, flushDebugOutput, (JNIEnv* env, jobject))
1868 tty->flush();
1869 C2V_END
1870
1871 C2V_VMENTRY_0(jint, methodDataProfileDataSize, (JNIEnv* env, jobject, jlong method_data_pointer, jint position))
1872 MethodData* mdo = (MethodData*) method_data_pointer;
1873 ProfileData* profile_data = mdo->data_at(position);
1874 if (mdo->is_valid(profile_data)) {
1875 return profile_data->size_in_bytes();
1876 }
1877 // Java code should never directly access the extra data section
1878 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Invalid profile data position %d", position));
1879 C2V_END
1880
1881 C2V_VMENTRY_0(jint, methodDataExceptionSeen, (JNIEnv* env, jobject, jlong method_data_pointer, jint bci))
1882 MethodData* mdo = (MethodData*) method_data_pointer;
1883
1884 // Lock to read ProfileData, and ensure lock is not broken by a safepoint
1885 MutexLocker mu(mdo->extra_data_lock(), Mutex::_no_safepoint_check_flag);
1886
1887 DataLayout* data = mdo->extra_data_base();
1888 DataLayout* end = mdo->args_data_limit();
1889 for (;; data = mdo->next_extra(data)) {
1890 assert(data < end, "moved past end of extra data");
1891 int tag = data->tag();
1892 switch(tag) {
1893 case DataLayout::bit_data_tag: {
1894 BitData* bit_data = (BitData*) data->data_in();
1895 if (bit_data->bci() == bci) {
1896 return bit_data->exception_seen() ? 1 : 0;
1897 }
1898 break;
1899 }
1900 case DataLayout::no_tag:
1901 // There is a free slot so return false since a BitData would have been allocated to record
1902 // true if it had been seen.
1903 return 0;
1904 case DataLayout::arg_info_data_tag:
1905 // The bci wasn't found and there are no free slots to record a trap for this location, so always
1906 // return unknown.
1907 return -1;
1908 }
1909 }
1910 ShouldNotReachHere();
1911 return -1;
1912 C2V_END
1913
1914 C2V_VMENTRY_NULL(jobject, getInterfaces, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1915 Klass* klass = UNPACK_PAIR(Klass, klass);
1916 if (klass == nullptr) {
1917 JVMCI_THROW_0(NullPointerException);
1918 }
1919
1920 if (!klass->is_instance_klass()) {
1921 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
1922 }
1923 InstanceKlass* iklass = InstanceKlass::cast(klass);
1924
1925 // Regular instance klass, fill in all local interfaces
1926 int size = iklass->local_interfaces()->length();
1927 JVMCIObjectArray interfaces = JVMCIENV->new_HotSpotResolvedObjectTypeImpl_array(size, JVMCI_CHECK_NULL);
1928 for (int index = 0; index < size; index++) {
1929 JVMCIKlassHandle klass(THREAD);
1930 Klass* k = iklass->local_interfaces()->at(index);
1931 klass = k;
1932 JVMCIObject type = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
1933 JVMCIENV->put_object_at(interfaces, index, type);
1934 }
1935 return JVMCIENV->get_jobject(interfaces);
1936 C2V_END
1937
1938 C2V_VMENTRY_NULL(jobject, getComponentType, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1939 Klass* klass = UNPACK_PAIR(Klass, klass);
1940 if (klass == nullptr) {
1941 JVMCI_THROW_0(NullPointerException);
1942 }
1943
1944 if (!klass->is_array_klass()) {
1945 return nullptr;
1946 }
1947 oop mirror = klass->java_mirror();
1948 oop component_mirror = java_lang_Class::component_mirror(mirror);
1949 if (component_mirror == nullptr) {
1950 JVMCI_THROW_MSG_0(NullPointerException,
1951 err_msg("Component mirror for array class %s is null", klass->external_name()))
1952 }
1953
1954 Klass* component_klass = java_lang_Class::as_Klass(component_mirror);
1955 if (component_klass != nullptr) {
1956 JVMCIKlassHandle klass_handle(THREAD, component_klass);
1957 JVMCIObject result = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
1958 return JVMCIENV->get_jobject(result);
1959 }
1960 BasicType type = java_lang_Class::primitive_type(component_mirror);
1961 JVMCIObject result = JVMCIENV->get_jvmci_primitive_type(type);
1962 return JVMCIENV->get_jobject(result);
1963 C2V_END
1964
1965 C2V_VMENTRY(void, ensureInitialized, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1966 Klass* klass = UNPACK_PAIR(Klass, klass);
1967 if (klass == nullptr) {
1968 JVMCI_THROW(NullPointerException);
1969 }
1970 if (klass->should_be_initialized()) {
1971 InstanceKlass* k = InstanceKlass::cast(klass);
1972 k->initialize(CHECK);
1973 }
1974 C2V_END
1975
1976 C2V_VMENTRY(void, ensureLinked, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1977 CompilerThreadCanCallJava canCallJava(thread, true); // Linking requires Java calls
1978 Klass* klass = UNPACK_PAIR(Klass, klass);
1979 if (klass == nullptr) {
1980 JVMCI_THROW(NullPointerException);
1981 }
1982 if (klass->is_instance_klass()) {
1983 InstanceKlass* k = InstanceKlass::cast(klass);
1984 k->link_class(CHECK);
1985 }
1986 C2V_END
1987
1988 C2V_VMENTRY_0(jint, interpreterFrameSize, (JNIEnv* env, jobject, jobject bytecode_frame_handle))
1989 if (bytecode_frame_handle == nullptr) {
1990 JVMCI_THROW_0(NullPointerException);
1991 }
1992
1993 JVMCIObject top_bytecode_frame = JVMCIENV->wrap(bytecode_frame_handle);
1994 JVMCIObject bytecode_frame = top_bytecode_frame;
1995 int size = 0;
1996 int callee_parameters = 0;
1997 int callee_locals = 0;
1998 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1999 int extra_args = method->max_stack() - JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
2000
2001 while (bytecode_frame.is_non_null()) {
2002 int locks = JVMCIENV->get_BytecodeFrame_numLocks(bytecode_frame);
2003 int temps = JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
2004 bool is_top_frame = (JVMCIENV->equals(bytecode_frame, top_bytecode_frame));
2005 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
2006
2007 int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
2008 temps + callee_parameters,
2009 extra_args,
2010 locks,
2011 callee_parameters,
2012 callee_locals,
2013 is_top_frame);
2014 size += frame_size;
2015
2016 callee_parameters = method->size_of_parameters();
2017 callee_locals = method->max_locals();
2018 extra_args = 0;
2019 bytecode_frame = JVMCIENV->get_BytecodePosition_caller(bytecode_frame);
2020 }
2021 return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
2022 C2V_END
2023
2024 C2V_VMENTRY(void, compileToBytecode, (JNIEnv* env, jobject, jobject lambda_form_handle))
2025 Handle lambda_form = JVMCIENV->asConstant(JVMCIENV->wrap(lambda_form_handle), JVMCI_CHECK);
2026 if (lambda_form->is_a(vmClasses::LambdaForm_klass())) {
2027 TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode");
2028 JavaValue result(T_VOID);
2029 JavaCalls::call_special(&result, lambda_form, vmClasses::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK);
2030 } else {
2031 JVMCI_THROW_MSG(IllegalArgumentException,
2032 err_msg("Unexpected type: %s", lambda_form->klass()->external_name()))
2033 }
2034 C2V_END
2035
2036 C2V_VMENTRY_0(jint, getIdentityHashCode, (JNIEnv* env, jobject, jobject object))
2037 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2038 return obj->identity_hash();
2039 C2V_END
2040
2041 C2V_VMENTRY_0(jboolean, isInternedString, (JNIEnv* env, jobject, jobject object))
2042 Handle str = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2043 if (!java_lang_String::is_instance(str())) {
2044 return false;
2045 }
2046 int len;
2047 jchar* name = java_lang_String::as_unicode_string(str(), len, CHECK_false);
2048 return (StringTable::lookup(name, len) != nullptr);
2049 C2V_END
2050
2051
2052 C2V_VMENTRY_NULL(jobject, unboxPrimitive, (JNIEnv* env, jobject, jobject object))
2053 if (object == nullptr) {
2054 JVMCI_THROW_0(NullPointerException);
2055 }
2056 Handle box = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2057 BasicType type = java_lang_boxing_object::basic_type(box());
2058 jvalue result;
2059 if (java_lang_boxing_object::get_value(box(), &result) == T_ILLEGAL) {
2060 return nullptr;
2061 }
2062 JVMCIObject boxResult = JVMCIENV->create_box(type, &result, JVMCI_CHECK_NULL);
2063 return JVMCIENV->get_jobject(boxResult);
2064 C2V_END
2065
2066 C2V_VMENTRY_NULL(jobject, boxPrimitive, (JNIEnv* env, jobject, jobject object))
2067 if (object == nullptr) {
2068 JVMCI_THROW_0(NullPointerException);
2069 }
2070 JVMCIObject box = JVMCIENV->wrap(object);
2071 BasicType type = JVMCIENV->get_box_type(box);
2072 if (type == T_ILLEGAL) {
2073 return nullptr;
2074 }
2075 jvalue value = JVMCIENV->get_boxed_value(type, box);
2076 JavaValue box_result(T_OBJECT);
2077 JavaCallArguments jargs;
2078 Klass* box_klass = nullptr;
2079 Symbol* box_signature = nullptr;
2080 #define BOX_CASE(bt, v, argtype, name) \
2081 case bt: \
2082 jargs.push_##argtype(value.v); \
2083 box_klass = vmClasses::name##_klass(); \
2084 box_signature = vmSymbols::name##_valueOf_signature(); \
2085 break
2086
2087 switch (type) {
2088 BOX_CASE(T_BOOLEAN, z, int, Boolean);
2089 BOX_CASE(T_BYTE, b, int, Byte);
2090 BOX_CASE(T_CHAR, c, int, Character);
2091 BOX_CASE(T_SHORT, s, int, Short);
2092 BOX_CASE(T_INT, i, int, Integer);
2093 BOX_CASE(T_LONG, j, long, Long);
2094 BOX_CASE(T_FLOAT, f, float, Float);
2095 BOX_CASE(T_DOUBLE, d, double, Double);
2096 default:
2097 ShouldNotReachHere();
2098 }
2099 #undef BOX_CASE
2100
2101 JavaCalls::call_static(&box_result,
2102 box_klass,
2103 vmSymbols::valueOf_name(),
2104 box_signature, &jargs, CHECK_NULL);
2105 oop hotspot_box = box_result.get_oop();
2106 JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false);
2107 return JVMCIENV->get_jobject(result);
2108 C2V_END
2109
2110 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2111 Klass* klass = UNPACK_PAIR(Klass, klass);
2112 if (klass == nullptr) {
2113 JVMCI_THROW_0(NullPointerException);
2114 }
2115 if (!klass->is_instance_klass()) {
2116 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
2117 return JVMCIENV->get_jobjectArray(methods);
2118 }
2119
2120 InstanceKlass* iklass = InstanceKlass::cast(klass);
2121 GrowableArray<Method*> constructors_array;
2122 for (int i = 0; i < iklass->methods()->length(); i++) {
2123 Method* m = iklass->methods()->at(i);
2124 if (m->is_initializer() && !m->is_static()) {
2125 constructors_array.append(m);
2126 }
2127 }
2128 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
2129 for (int i = 0; i < constructors_array.length(); i++) {
2130 methodHandle ctor(THREAD, constructors_array.at(i));
2131 JVMCIObject method = JVMCIENV->get_jvmci_method(ctor, JVMCI_CHECK_NULL);
2132 JVMCIENV->put_object_at(methods, i, method);
2133 }
2134 return JVMCIENV->get_jobjectArray(methods);
2135 C2V_END
2136
2137 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2138 Klass* klass = UNPACK_PAIR(Klass, klass);
2139 if (klass == nullptr) {
2140 JVMCI_THROW_0(NullPointerException);
2141 }
2142 if (!klass->is_instance_klass()) {
2143 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
2144 return JVMCIENV->get_jobjectArray(methods);
2145 }
2146
2147 InstanceKlass* iklass = InstanceKlass::cast(klass);
2148 GrowableArray<Method*> methods_array;
2149 for (int i = 0; i < iklass->methods()->length(); i++) {
2150 Method* m = iklass->methods()->at(i);
2151 if (!m->is_initializer() && !m->is_overpass()) {
2152 methods_array.append(m);
2153 }
2154 }
2155 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
2156 for (int i = 0; i < methods_array.length(); i++) {
2157 methodHandle mh(THREAD, methods_array.at(i));
2158 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
2159 JVMCIENV->put_object_at(methods, i, method);
2160 }
2161 return JVMCIENV->get_jobjectArray(methods);
2162 C2V_END
2163
2164 C2V_VMENTRY_NULL(jobjectArray, getDeclaredFieldsInfo, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2165 Klass* klass = UNPACK_PAIR(Klass, klass);
2166 if (klass == nullptr) {
2167 JVMCI_THROW_0(NullPointerException);
2168 }
2169 if (!klass->is_instance_klass()) {
2170 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "not an InstanceKlass");
2171 }
2172 InstanceKlass* iklass = InstanceKlass::cast(klass);
2173 int java_fields, injected_fields;
2174 GrowableArray<FieldInfo>* fields = FieldInfoStream::create_FieldInfoArray(iklass->fieldinfo_stream(), &java_fields, &injected_fields);
2175 JVMCIObjectArray array = JVMCIENV->new_FieldInfo_array(fields->length(), JVMCIENV);
2176 for (int i = 0; i < fields->length(); i++) {
2177 JVMCIObject field_info = JVMCIENV->new_FieldInfo(fields->adr_at(i), JVMCI_CHECK_NULL);
2178 JVMCIENV->put_object_at(array, i, field_info);
2179 }
2180 return array.as_jobject();
2181 C2V_END
2182
2183 static jobject read_field_value(Handle obj, long displacement, jchar type_char, bool is_static, Thread* THREAD, JVMCIEnv* JVMCIENV) {
2184
2185 BasicType basic_type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_NULL);
2186 int basic_type_elemsize = type2aelembytes(basic_type);
2187 if (displacement < 0 || ((size_t) displacement + basic_type_elemsize > HeapWordSize * obj->size())) {
2188 // Reading outside of the object bounds
2189 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading outside object bounds");
2190 }
2191
2192 // Perform basic sanity checks on the read. Primitive reads are permitted to read outside the
2193 // bounds of their fields but object reads must map exactly onto the underlying oop slot.
2194 bool aligned = (displacement % basic_type_elemsize) == 0;
2195 if (!aligned) {
2196 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "read is unaligned");
2197 }
2198 if (basic_type == T_OBJECT) {
2199 if (obj->is_objArray()) {
2200 if (displacement < arrayOopDesc::base_offset_in_bytes(T_OBJECT)) {
2201 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
2202 }
2203 if (displacement + heapOopSize > arrayOopDesc::base_offset_in_bytes(T_OBJECT) + arrayOop(obj())->length() * heapOopSize) {
2204 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading after last array element");
2205 }
2206 if (((displacement - arrayOopDesc::base_offset_in_bytes(T_OBJECT)) % heapOopSize) != 0) {
2207 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "misaligned object read from array");
2208 }
2209 } else if (obj->is_instance()) {
2210 InstanceKlass* klass = InstanceKlass::cast(is_static ? java_lang_Class::as_Klass(obj()) : obj->klass());
2211 fieldDescriptor fd;
2212 if (!klass->find_field_from_offset(displacement, is_static, &fd)) {
2213 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Can't find field at displacement %d in object of type %s", (int) displacement, klass->external_name()));
2214 }
2215 if (fd.field_type() != T_OBJECT && fd.field_type() != T_ARRAY) {
2216 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Field at displacement %d in object of type %s is %s but expected %s", (int) displacement,
2217 klass->external_name(), type2name(fd.field_type()), type2name(basic_type)));
2218 }
2219 } else if (obj->is_typeArray()) {
2220 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Can't read objects from primitive array");
2221 } else {
2222 ShouldNotReachHere();
2223 }
2224 } else {
2225 if (obj->is_objArray()) {
2226 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Reading primitive from object array");
2227 } else if (obj->is_typeArray()) {
2228 if (displacement < arrayOopDesc::base_offset_in_bytes(ArrayKlass::cast(obj->klass())->element_type())) {
2229 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
2230 }
2231 }
2232 }
2233
2234 jlong value = 0;
2235
2236 // Treat all reads as volatile for simplicity as this function can be used
2237 // both for reading Java fields declared as volatile as well as for constant
2238 // folding Unsafe.get* methods with volatile semantics.
2239
2240 switch (basic_type) {
2241 case T_BOOLEAN: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jboolean>(displacement)); break;
2242 case T_BYTE: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jbyte>(displacement)); break;
2243 case T_SHORT: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jshort>(displacement)); break;
2244 case T_CHAR: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jchar>(displacement)); break;
2245 case T_FLOAT:
2246 case T_INT: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jint>(displacement)); break;
2247 case T_DOUBLE:
2248 case T_LONG: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jlong>(displacement)); break;
2249
2250 case T_OBJECT: {
2251 if (displacement == java_lang_Class::component_mirror_offset() && java_lang_Class::is_instance(obj()) &&
2252 (java_lang_Class::as_Klass(obj()) == nullptr || !java_lang_Class::as_Klass(obj())->is_array_klass())) {
2253 // Class.componentType for non-array classes can transiently contain an int[] that's
2254 // used for locking so always return null to mimic Class.getComponentType()
2255 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
2256 }
2257
2258 // Perform the read including any barriers required to make the reference strongly reachable
2259 // since it will be wrapped as a JavaConstant.
2260 oop value = obj->obj_field_access<MO_SEQ_CST | ON_UNKNOWN_OOP_REF>(displacement);
2261
2262 if (value == nullptr) {
2263 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
2264 } else {
2265 if (value != nullptr && !oopDesc::is_oop(value)) {
2266 // Throw an exception to improve debuggability. This check isn't totally reliable because
2267 // is_oop doesn't try to be completety safe but for most invalid values it provides a good
2268 // enough answer. It possible to crash in the is_oop call but that just means the crash happens
2269 // closer to where things went wrong.
2270 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Read bad oop " INTPTR_FORMAT " at offset " JLONG_FORMAT " in object " INTPTR_FORMAT " of type %s",
2271 p2i(value), displacement, p2i(obj()), obj->klass()->external_name()));
2272 }
2273
2274 JVMCIObject result = JVMCIENV->get_object_constant(value);
2275 return JVMCIENV->get_jobject(result);
2276 }
2277 }
2278
2279 default:
2280 ShouldNotReachHere();
2281 }
2282 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, value, JVMCI_CHECK_NULL);
2283 return JVMCIENV->get_jobject(result);
2284 }
2285
2286 C2V_VMENTRY_NULL(jobject, readStaticFieldValue, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), long displacement, jchar type_char))
2287 Klass* klass = UNPACK_PAIR(Klass, klass);
2288 Handle obj(THREAD, klass->java_mirror());
2289 return read_field_value(obj, displacement, type_char, true, THREAD, JVMCIENV);
2290 C2V_END
2291
2292 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, ARGUMENT_PAIR(expected_type), long displacement, jchar type_char))
2293 if (object == nullptr) {
2294 JVMCI_THROW_0(NullPointerException);
2295 }
2296
2297 // asConstant will throw an NPE if a constant contains null
2298 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2299
2300 Klass* expected_klass = UNPACK_PAIR(Klass, expected_type);
2301 if (expected_klass != nullptr) {
2302 InstanceKlass* expected_iklass = InstanceKlass::cast(expected_klass);
2303 if (!obj->is_a(expected_iklass)) {
2304 // Not of the expected type
2305 return nullptr;
2306 }
2307 }
2308 bool is_static = expected_klass == nullptr && java_lang_Class::is_instance(obj()) && displacement >= InstanceMirrorKlass::offset_of_static_fields();
2309 return read_field_value(obj, displacement, type_char, is_static, THREAD, JVMCIENV);
2310 C2V_END
2311
2312 C2V_VMENTRY_0(jboolean, isInstance, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jobject object))
2313 Klass* klass = UNPACK_PAIR(Klass, klass);
2314 if (object == nullptr || klass == nullptr) {
2315 JVMCI_THROW_0(NullPointerException);
2316 }
2317 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2318 return obj->is_a(klass);
2319 C2V_END
2320
2321 C2V_VMENTRY_0(jboolean, isAssignableFrom, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(subklass)))
2322 Klass* klass = UNPACK_PAIR(Klass, klass);
2323 Klass* subklass = UNPACK_PAIR(Klass, subklass);
2324 if (klass == nullptr || subklass == nullptr) {
2325 JVMCI_THROW_0(NullPointerException);
2326 }
2327 return subklass->is_subtype_of(klass);
2328 C2V_END
2329
2330 C2V_VMENTRY_0(jboolean, isTrustedForIntrinsics, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2331 Klass* klass = UNPACK_PAIR(Klass, klass);
2332 if (klass == nullptr) {
2333 JVMCI_THROW_0(NullPointerException);
2334 }
2335 InstanceKlass* ik = InstanceKlass::cast(klass);
2336 if (ik->class_loader_data()->is_boot_class_loader_data() || ik->class_loader_data()->is_platform_class_loader_data()) {
2337 return true;
2338 }
2339 return false;
2340 C2V_END
2341
2342 C2V_VMENTRY_NULL(jobject, asJavaType, (JNIEnv* env, jobject, jobject object))
2343 if (object == nullptr) {
2344 JVMCI_THROW_0(NullPointerException);
2345 }
2346 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2347 if (java_lang_Class::is_instance(obj())) {
2348 if (java_lang_Class::is_primitive(obj())) {
2349 JVMCIObject type = JVMCIENV->get_jvmci_primitive_type(java_lang_Class::primitive_type(obj()));
2350 return JVMCIENV->get_jobject(type);
2351 }
2352 Klass* klass = java_lang_Class::as_Klass(obj());
2353 JVMCIKlassHandle klass_handle(THREAD);
2354 klass_handle = klass;
2355 JVMCIObject type = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
2356 return JVMCIENV->get_jobject(type);
2357 }
2358 return nullptr;
2359 C2V_END
2360
2361
2362 C2V_VMENTRY_NULL(jobject, asString, (JNIEnv* env, jobject, jobject object))
2363 if (object == nullptr) {
2364 JVMCI_THROW_0(NullPointerException);
2365 }
2366 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2367 const char* str = java_lang_String::as_utf8_string(obj());
2368 JVMCIObject result = JVMCIENV->create_string(str, JVMCI_CHECK_NULL);
2369 return JVMCIENV->get_jobject(result);
2370 C2V_END
2371
2372
2373 C2V_VMENTRY_0(jboolean, equals, (JNIEnv* env, jobject, jobject x, jlong xHandle, jobject y, jlong yHandle))
2374 if (x == nullptr || y == nullptr) {
2375 JVMCI_THROW_0(NullPointerException);
2376 }
2377 return JVMCIENV->resolve_oop_handle(xHandle) == JVMCIENV->resolve_oop_handle(yHandle);
2378 C2V_END
2379
2380 C2V_VMENTRY_NULL(jobject, getJavaMirror, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2381 Klass* klass = UNPACK_PAIR(Klass, klass);
2382 if (klass == nullptr) {
2383 JVMCI_THROW_0(NullPointerException);
2384 }
2385 Handle mirror(THREAD, klass->java_mirror());
2386 JVMCIObject result = JVMCIENV->get_object_constant(mirror());
2387 return JVMCIENV->get_jobject(result);
2388 C2V_END
2389
2390
2391 C2V_VMENTRY_0(jint, getArrayLength, (JNIEnv* env, jobject, jobject x))
2392 if (x == nullptr) {
2393 JVMCI_THROW_0(NullPointerException);
2394 }
2395 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2396 if (xobj->klass()->is_array_klass()) {
2397 return arrayOop(xobj())->length();
2398 }
2399 return -1;
2400 C2V_END
2401
2402
2403 C2V_VMENTRY_NULL(jobject, readArrayElement, (JNIEnv* env, jobject, jobject x, int index))
2404 if (x == nullptr) {
2405 JVMCI_THROW_0(NullPointerException);
2406 }
2407 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_NULL);
2408 if (xobj->klass()->is_array_klass()) {
2409 arrayOop array = arrayOop(xobj());
2410 BasicType element_type = ArrayKlass::cast(array->klass())->element_type();
2411 if (index < 0 || index >= array->length()) {
2412 return nullptr;
2413 }
2414 JVMCIObject result;
2415
2416 if (element_type == T_OBJECT) {
2417 result = JVMCIENV->get_object_constant(objArrayOop(xobj())->obj_at(index));
2418 if (result.is_null()) {
2419 result = JVMCIENV->get_JavaConstant_NULL_POINTER();
2420 }
2421 } else {
2422 jvalue value;
2423 switch (element_type) {
2424 case T_DOUBLE: value.d = typeArrayOop(xobj())->double_at(index); break;
2425 case T_FLOAT: value.f = typeArrayOop(xobj())->float_at(index); break;
2426 case T_LONG: value.j = typeArrayOop(xobj())->long_at(index); break;
2427 case T_INT: value.i = typeArrayOop(xobj())->int_at(index); break;
2428 case T_SHORT: value.s = typeArrayOop(xobj())->short_at(index); break;
2429 case T_CHAR: value.c = typeArrayOop(xobj())->char_at(index); break;
2430 case T_BYTE: value.b = typeArrayOop(xobj())->byte_at(index); break;
2431 case T_BOOLEAN: value.z = typeArrayOop(xobj())->byte_at(index) & 1; break;
2432 default: ShouldNotReachHere();
2433 }
2434 result = JVMCIENV->create_box(element_type, &value, JVMCI_CHECK_NULL);
2435 }
2436 assert(!result.is_null(), "must have a value");
2437 return JVMCIENV->get_jobject(result);
2438 }
2439 return nullptr;;
2440 C2V_END
2441
2442
2443 C2V_VMENTRY_0(jint, arrayBaseOffset, (JNIEnv* env, jobject, jchar type_char))
2444 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
2445 return arrayOopDesc::base_offset_in_bytes(type);
2446 C2V_END
2447
2448 C2V_VMENTRY_0(jint, arrayIndexScale, (JNIEnv* env, jobject, jchar type_char))
2449 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
2450 return type2aelembytes(type);
2451 C2V_END
2452
2453 C2V_VMENTRY(void, clearOopHandle, (JNIEnv* env, jobject, jlong oop_handle))
2454 if (oop_handle == 0L) {
2455 JVMCI_THROW(NullPointerException);
2456 }
2457 // Assert before nulling out, for better debugging.
2458 assert(JVMCIRuntime::is_oop_handle(oop_handle), "precondition");
2459 oop* oop_ptr = (oop*) oop_handle;
2460 NativeAccess<>::oop_store(oop_ptr, (oop) nullptr);
2461 C2V_END
2462
2463 C2V_VMENTRY(void, releaseClearedOopHandles, (JNIEnv* env, jobject))
2464 JVMCIENV->runtime()->release_cleared_oop_handles();
2465 C2V_END
2466
2467 static void requireJVMCINativeLibrary(JVMCI_TRAPS) {
2468 if (!UseJVMCINativeLibrary) {
2469 JVMCI_THROW_MSG(UnsupportedOperationException, "JVMCI shared library is not enabled (requires -XX:+UseJVMCINativeLibrary)");
2470 }
2471 }
2472
2473 C2V_VMENTRY_NULL(jlongArray, registerNativeMethods, (JNIEnv* env, jobject, jclass mirror))
2474 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2475 requireInHotSpot("registerNativeMethods", JVMCI_CHECK_NULL);
2476 char* sl_path;
2477 void* sl_handle;
2478 JVMCIRuntime* runtime;
2479 {
2480 // Ensure the JVMCI shared library runtime is initialized.
2481 PEER_JVMCIENV_FROM_THREAD(THREAD, false);
2482 PEER_JVMCIENV->check_init(JVMCI_CHECK_NULL);
2483
2484 HandleMark hm(THREAD);
2485 runtime = JVMCI::compiler_runtime(thread);
2486 if (PEER_JVMCIENV->has_pending_exception()) {
2487 PEER_JVMCIENV->describe_pending_exception(tty);
2488 }
2489 sl_handle = JVMCI::get_shared_library(sl_path, false);
2490 if (sl_handle == nullptr) {
2491 JVMCI_THROW_MSG_0(InternalError, err_msg("Error initializing JVMCI runtime %d", runtime->id()));
2492 }
2493 }
2494
2495 if (mirror == nullptr) {
2496 JVMCI_THROW_0(NullPointerException);
2497 }
2498 Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
2499 if (klass == nullptr || !klass->is_instance_klass()) {
2500 JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type");
2501 }
2502
2503 InstanceKlass* iklass = InstanceKlass::cast(klass);
2504 for (int i = 0; i < iklass->methods()->length(); i++) {
2505 methodHandle method(THREAD, iklass->methods()->at(i));
2506 if (method->is_native()) {
2507
2508 // Compute argument size
2509 int args_size = 1 // JNIEnv
2510 + (method->is_static() ? 1 : 0) // class for static methods
2511 + method->size_of_parameters(); // actual parameters
2512
2513 // 1) Try JNI short style
2514 stringStream st;
2515 char* pure_name = NativeLookup::pure_jni_name(method);
2516 guarantee(pure_name != nullptr, "Illegal native method name encountered");
2517 os::print_jni_name_prefix_on(&st, args_size);
2518 st.print_raw(pure_name);
2519 os::print_jni_name_suffix_on(&st, args_size);
2520 char* jni_name = st.as_string();
2521
2522 address entry = (address) os::dll_lookup(sl_handle, jni_name);
2523 if (entry == nullptr) {
2524 // 2) Try JNI long style
2525 st.reset();
2526 char* long_name = NativeLookup::long_jni_name(method);
2527 guarantee(long_name != nullptr, "Illegal native method name encountered");
2528 os::print_jni_name_prefix_on(&st, args_size);
2529 st.print_raw(pure_name);
2530 st.print_raw(long_name);
2531 os::print_jni_name_suffix_on(&st, args_size);
2532 char* jni_long_name = st.as_string();
2533 entry = (address) os::dll_lookup(sl_handle, jni_long_name);
2534 if (entry == nullptr) {
2535 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [neither %s nor %s exist in %s]",
2536 method->name_and_sig_as_C_string(),
2537 jni_name, jni_long_name, sl_path));
2538 }
2539 }
2540
2541 if (method->has_native_function() && entry != method->native_function()) {
2542 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [cannot re-link from " PTR_FORMAT " to " PTR_FORMAT "]",
2543 method->name_and_sig_as_C_string(), p2i(method->native_function()), p2i(entry)));
2544 }
2545 method->set_native_function(entry, Method::native_bind_event_is_interesting);
2546 log_debug(jni, resolve)("[Dynamic-linking native method %s.%s ... JNI] @ " PTR_FORMAT,
2547 method->method_holder()->external_name(),
2548 method->name()->as_C_string(),
2549 p2i((void*) entry));
2550 }
2551 }
2552
2553 typeArrayOop info_oop = oopFactory::new_longArray(4, CHECK_0);
2554 jlongArray info = (jlongArray) JNIHandles::make_local(THREAD, info_oop);
2555 runtime->init_JavaVM_info(info, JVMCI_CHECK_0);
2556 return info;
2557 C2V_END
2558
2559 C2V_VMENTRY_PREFIX(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject c2vm))
2560 if (thread == nullptr || thread->libjvmci_runtime() == nullptr) {
2561 // Called from unattached JVMCI shared library thread
2562 return false;
2563 }
2564 if (thread->jni_environment() == env) {
2565 C2V_BLOCK(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject))
2566 JVMCITraceMark jtm("isCurrentThreadAttached");
2567 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2568 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2569 if (runtime == nullptr || !runtime->has_shared_library_javavm()) {
2570 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in isCurrentThreadAttached");
2571 }
2572 JNIEnv* peerEnv;
2573 return runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) == JNI_OK;
2574 }
2575 return true;
2576 C2V_END
2577
2578 C2V_VMENTRY_PREFIX(jlong, getCurrentJavaThread, (JNIEnv* env, jobject c2vm))
2579 if (thread == nullptr) {
2580 // Called from unattached JVMCI shared library thread
2581 return 0L;
2582 }
2583 return (jlong) p2i(thread);
2584 C2V_END
2585
2586 // Attaches a thread started in a JVMCI shared library to a JavaThread and JVMCI runtime.
2587 static void attachSharedLibraryThread(JNIEnv* env, jbyteArray name, jboolean as_daemon) {
2588 JavaVM* javaVM = nullptr;
2589 jint res = env->GetJavaVM(&javaVM);
2590 if (res != JNI_OK) {
2591 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Error getting shared library JavaVM from shared library JNIEnv: %d", res));
2592 }
2593 extern struct JavaVM_ main_vm;
2594 JNIEnv* hotspotEnv;
2595
2596 int name_len = env->GetArrayLength(name);
2597 char name_buf[64]; // Cannot use Resource heap as it requires a current thread
2598 int to_copy = MIN2(name_len, (int) sizeof(name_buf) - 1);
2599 env->GetByteArrayRegion(name, 0, to_copy, (jbyte*) name_buf);
2600 name_buf[to_copy] = '\0';
2601 JavaVMAttachArgs attach_args;
2602 attach_args.version = JNI_VERSION_1_2;
2603 attach_args.name = name_buf;
2604 attach_args.group = nullptr;
2605 res = as_daemon ? main_vm.AttachCurrentThreadAsDaemon((void**)&hotspotEnv, &attach_args) :
2606 main_vm.AttachCurrentThread((void**)&hotspotEnv, &attach_args);
2607 if (res != JNI_OK) {
2608 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Trying to attach thread returned %d", res));
2609 }
2610 JavaThread* thread = JavaThread::thread_from_jni_environment(hotspotEnv);
2611 const char* attach_error;
2612 {
2613 // Transition to VM
2614 JVMCI_VM_ENTRY_MARK
2615 attach_error = JVMCIRuntime::attach_shared_library_thread(thread, javaVM);
2616 // Transition back to Native
2617 }
2618 if (attach_error != nullptr) {
2619 JNI_THROW("attachCurrentThread", InternalError, attach_error);
2620 }
2621 }
2622
2623 C2V_VMENTRY_PREFIX(jboolean, attachCurrentThread, (JNIEnv* env, jobject c2vm, jbyteArray name, jboolean as_daemon, jlongArray javaVM_info))
2624 if (thread == nullptr) {
2625 attachSharedLibraryThread(env, name, as_daemon);
2626 return true;
2627 }
2628 if (thread->jni_environment() == env) {
2629 // Called from HotSpot
2630 C2V_BLOCK(jboolean, attachCurrentThread, (JNIEnv* env, jobject, jboolean))
2631 JVMCITraceMark jtm("attachCurrentThread");
2632 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2633
2634 JVMCIRuntime* runtime = JVMCI::compiler_runtime(thread);
2635 JNIEnv* peerJNIEnv;
2636 if (runtime->has_shared_library_javavm()) {
2637 if (runtime->GetEnv(thread, (void**)&peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2638 // Already attached
2639 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0);
2640 return false;
2641 }
2642 }
2643
2644 {
2645 // Ensure the JVMCI shared library runtime is initialized.
2646 PEER_JVMCIENV_FROM_THREAD(THREAD, false);
2647 PEER_JVMCIENV->check_init(JVMCI_CHECK_0);
2648
2649 HandleMark hm(thread);
2650 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(PEER_JVMCIENV);
2651 if (PEER_JVMCIENV->has_pending_exception()) {
2652 PEER_JVMCIENV->describe_pending_exception(tty);
2653 }
2654 char* sl_path;
2655 if (JVMCI::get_shared_library(sl_path, false) == nullptr) {
2656 JVMCI_THROW_MSG_0(InternalError, "Error initializing JVMCI runtime");
2657 }
2658 }
2659
2660 JavaVMAttachArgs attach_args;
2661 attach_args.version = JNI_VERSION_1_2;
2662 attach_args.name = const_cast<char*>(thread->name());
2663 attach_args.group = nullptr;
2664 if (runtime->GetEnv(thread, (void**) &peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2665 return false;
2666 }
2667 jint res = as_daemon ? runtime->AttachCurrentThreadAsDaemon(thread, (void**) &peerJNIEnv, &attach_args) :
2668 runtime->AttachCurrentThread(thread, (void**) &peerJNIEnv, &attach_args);
2669
2670 if (res == JNI_OK) {
2671 guarantee(peerJNIEnv != nullptr, "must be");
2672 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0);
2673 JVMCI_event_1("attached to JavaVM[%d] for JVMCI runtime %d", runtime->get_shared_library_javavm_id(), runtime->id());
2674 return true;
2675 }
2676 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, attach_args.name));
2677 }
2678 // Called from JVMCI shared library
2679 return false;
2680 C2V_END
2681
2682 C2V_VMENTRY_PREFIX(jboolean, detachCurrentThread, (JNIEnv* env, jobject c2vm, jboolean release))
2683 if (thread == nullptr) {
2684 // Called from unattached JVMCI shared library thread
2685 JNI_THROW_("detachCurrentThread", IllegalStateException, "Cannot detach non-attached thread", false);
2686 }
2687 if (thread->jni_environment() == env) {
2688 // Called from HotSpot
2689 C2V_BLOCK(void, detachCurrentThread, (JNIEnv* env, jobject))
2690 JVMCITraceMark jtm("detachCurrentThread");
2691 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2692 requireInHotSpot("detachCurrentThread", JVMCI_CHECK_0);
2693 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2694 if (runtime == nullptr || !runtime->has_shared_library_javavm()) {
2695 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in detachCurrentThread");
2696 }
2697 JNIEnv* peerEnv;
2698
2699 if (runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) != JNI_OK) {
2700 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("Cannot detach non-attached thread: %s", thread->name()));
2701 }
2702 jint res = runtime->DetachCurrentThread(thread);
2703 if (res != JNI_OK) {
2704 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, thread->name()));
2705 }
2706 JVMCI_event_1("detached from JavaVM[%d] for JVMCI runtime %d",
2707 runtime->get_shared_library_javavm_id(), runtime->id());
2708 if (release) {
2709 return runtime->detach_thread(thread, "user thread detach");
2710 }
2711 } else {
2712 // Called from attached JVMCI shared library thread
2713 if (release) {
2714 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread cannot release JVMCI shared library JavaVM", false);
2715 }
2716 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2717 if (runtime == nullptr) {
2718 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread should have a JVMCI runtime", false);
2719 }
2720 {
2721 // Transition to VM
2722 C2V_BLOCK(jboolean, detachCurrentThread, (JNIEnv* env, jobject))
2723 // Cannot destroy shared library JavaVM as we're about to return to it.
2724 runtime->detach_thread(thread, "shared library thread detach", false);
2725 JVMCI_event_1("detaching JVMCI shared library thread from HotSpot JavaVM");
2726 // Transition back to Native
2727 }
2728 extern struct JavaVM_ main_vm;
2729 jint res = main_vm.DetachCurrentThread();
2730 if (res != JNI_OK) {
2731 JNI_THROW_("detachCurrentThread", InternalError, "Cannot detach non-attached thread", false);
2732 }
2733 }
2734 return false;
2735 C2V_END
2736
2737 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle, jboolean callPostTranslation))
2738 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2739 if (obj_handle == nullptr) {
2740 return 0L;
2741 }
2742 PEER_JVMCIENV_FROM_THREAD(THREAD, !JVMCIENV->is_hotspot());
2743 CompilerThreadCanCallJava canCallJava(thread, PEER_JVMCIENV->is_hotspot());
2744 PEER_JVMCIENV->check_init(JVMCI_CHECK_0);
2745
2746 JVMCIEnv* thisEnv = JVMCIENV;
2747 JVMCIObject obj = thisEnv->wrap(obj_handle);
2748 JVMCIObject result;
2749 if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) {
2750 methodHandle method(THREAD, thisEnv->asMethod(obj));
2751 result = PEER_JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_0);
2752 } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) {
2753 Klass* klass = thisEnv->asKlass(obj);
2754 JVMCIKlassHandle klass_handle(THREAD);
2755 klass_handle = klass;
2756 result = PEER_JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_0);
2757 } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) {
2758 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0);
2759 result = PEER_JVMCIENV->get_jvmci_primitive_type(type);
2760 } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) ||
2761 thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) {
2762 Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0);
2763 result = PEER_JVMCIENV->get_object_constant(constant());
2764 } else if (thisEnv->isa_HotSpotNmethod(obj)) {
2765 if (PEER_JVMCIENV->is_hotspot()) {
2766 JVMCINMethodHandle nmethod_handle(THREAD);
2767 nmethod* nm = JVMCIENV->get_nmethod(obj, nmethod_handle);
2768 if (nm != nullptr) {
2769 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2770 if (data != nullptr) {
2771 // Only the mirror in the HotSpot heap is accessible
2772 // through JVMCINMethodData
2773 oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true);
2774 if (nmethod_mirror != nullptr) {
2775 result = HotSpotJVMCI::wrap(nmethod_mirror);
2776 }
2777 }
2778 }
2779 }
2780
2781 if (result.is_null()) {
2782 JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj);
2783 methodHandle mh(THREAD, thisEnv->asMethod(methodObject));
2784 jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj);
2785 jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj);
2786 JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj);
2787 const char* cstring = name_string.is_null() ? nullptr : thisEnv->as_utf8_string(name_string);
2788 // Create a new HotSpotNmethod instance in the peer runtime
2789 result = PEER_JVMCIENV->new_HotSpotNmethod(mh, cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0);
2790 JVMCINMethodHandle nmethod_handle(THREAD);
2791 nmethod* nm = JVMCIENV->get_nmethod(obj, nmethod_handle);
2792 if (result.is_null()) {
2793 // exception occurred (e.g. OOME) creating a new HotSpotNmethod
2794 } else if (nm == nullptr) {
2795 // nmethod must have been unloaded
2796 } else {
2797 // Link the new HotSpotNmethod to the nmethod
2798 PEER_JVMCIENV->initialize_installed_code(result, nm, JVMCI_CHECK_0);
2799 // Only non-default HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime.
2800 if (!isDefault && PEER_JVMCIENV->is_hotspot()) {
2801 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2802 if (data == nullptr) {
2803 JVMCI_THROW_MSG_0(IllegalArgumentException, "Missing HotSpotNmethod data");
2804 }
2805 if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != nullptr) {
2806 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod");
2807 }
2808 oop nmethod_mirror = HotSpotJVMCI::resolve(result);
2809 data->set_nmethod_mirror(nm, nmethod_mirror);
2810 }
2811 }
2812 }
2813 } else {
2814 JVMCI_THROW_MSG_0(IllegalArgumentException,
2815 err_msg("Cannot translate object of type: %s", thisEnv->klass_name(obj)));
2816 }
2817 if (callPostTranslation) {
2818 PEER_JVMCIENV->call_HotSpotJVMCIRuntime_postTranslation(result, JVMCI_CHECK_0);
2819 }
2820 // Propagate any exception that occurred while creating the translated object
2821 if (PEER_JVMCIENV->transfer_pending_exception(thread, thisEnv)) {
2822 return 0L;
2823 }
2824 return (jlong) PEER_JVMCIENV->make_global(result).as_jobject();
2825 C2V_END
2826
2827 C2V_VMENTRY_NULL(jobject, unhand, (JNIEnv* env, jobject, jlong obj_handle))
2828 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2829 if (obj_handle == 0L) {
2830 return nullptr;
2831 }
2832 jobject global_handle = (jobject) obj_handle;
2833 JVMCIObject global_handle_obj = JVMCIENV->wrap(global_handle);
2834 jobject result = JVMCIENV->make_local(global_handle_obj).as_jobject();
2835
2836 JVMCIENV->destroy_global(global_handle_obj);
2837 return result;
2838 C2V_END
2839
2840 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle))
2841 JVMCIObject code = JVMCIENV->wrap(code_handle);
2842 // Execute this operation for the side effect of updating the InstalledCode state
2843 JVMCINMethodHandle nmethod_handle(THREAD);
2844 JVMCIENV->get_nmethod(code, nmethod_handle);
2845 C2V_END
2846
2847 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2848 JVMCIObject code = JVMCIENV->wrap(code_handle);
2849 CodeBlob* cb = JVMCIENV->get_code_blob(code);
2850 if (cb == nullptr) {
2851 return nullptr;
2852 }
2853 // Make a resource copy of code before the allocation causes a safepoint
2854 int code_size = cb->code_size();
2855 jbyte* code_bytes = NEW_RESOURCE_ARRAY(jbyte, code_size);
2856 memcpy(code_bytes, (jbyte*) cb->code_begin(), code_size);
2857
2858 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2859 JVMCIENV->copy_bytes_from(code_bytes, result, 0, code_size);
2860 return JVMCIENV->get_jbyteArray(result);
2861 C2V_END
2862
2863 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
2864 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2865 methodHandle m(THREAD, UNPACK_PAIR(Method, method));
2866 oop executable;
2867 if (m->is_initializer()) {
2868 if (m->is_static_initializer()) {
2869 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2870 "Cannot create java.lang.reflect.Method for class initializer");
2871 }
2872 executable = Reflection::new_constructor(m, CHECK_NULL);
2873 } else {
2874 executable = Reflection::new_method(m, false, CHECK_NULL);
2875 }
2876 return JNIHandles::make_local(THREAD, executable);
2877 C2V_END
2878
2879 static InstanceKlass* check_field(Klass* klass, jint index, JVMCI_TRAPS) {
2880 if (!klass->is_instance_klass()) {
2881 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2882 err_msg("Expected non-primitive type, got %s", klass->external_name()));
2883 }
2884 InstanceKlass* iklass = InstanceKlass::cast(klass);
2885 if (index < 0 || index > iklass->total_fields_count()) {
2886 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2887 err_msg("Field index %d out of bounds for %s", index, klass->external_name()));
2888 }
2889 return iklass;
2890 }
2891
2892 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index))
2893 requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL);
2894 Klass* klass = UNPACK_PAIR(Klass, klass);
2895 InstanceKlass* iklass = check_field(klass, index, JVMCIENV);
2896 fieldDescriptor fd(iklass, index);
2897 oop reflected = Reflection::new_field(&fd, CHECK_NULL);
2898 return JNIHandles::make_local(THREAD, reflected);
2899 C2V_END
2900
2901 static jbyteArray get_encoded_annotation_data(InstanceKlass* holder, AnnotationArray* annotations_array, bool for_class,
2902 jint filter_length, jlong filter_klass_pointers,
2903 JavaThread* THREAD, JVMCIEnv* JVMCIENV) {
2904 // Get a ConstantPool object for annotation parsing
2905 Handle jcp = reflect_ConstantPool::create(CHECK_NULL);
2906 reflect_ConstantPool::set_cp(jcp(), holder->constants());
2907
2908 // load VMSupport
2909 Symbol* klass = vmSymbols::jdk_internal_vm_VMSupport();
2910 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK_NULL);
2911
2912 InstanceKlass* vm_support = InstanceKlass::cast(k);
2913 if (vm_support->should_be_initialized()) {
2914 vm_support->initialize(CHECK_NULL);
2915 }
2916
2917 typeArrayOop annotations_oop = Annotations::make_java_array(annotations_array, CHECK_NULL);
2918 typeArrayHandle annotations = typeArrayHandle(THREAD, annotations_oop);
2919
2920 InstanceKlass** filter = filter_length == 1 ?
2921 (InstanceKlass**) &filter_klass_pointers:
2922 (InstanceKlass**) filter_klass_pointers;
2923 objArrayOop filter_oop = oopFactory::new_objArray(vmClasses::Class_klass(), filter_length, CHECK_NULL);
2924 objArrayHandle filter_classes(THREAD, filter_oop);
2925 for (int i = 0; i < filter_length; i++) {
2926 filter_classes->obj_at_put(i, filter[i]->java_mirror());
2927 }
2928
2929 // invoke VMSupport.encodeAnnotations
2930 JavaValue result(T_OBJECT);
2931 JavaCallArguments args;
2932 args.push_oop(annotations);
2933 args.push_oop(Handle(THREAD, holder->java_mirror()));
2934 args.push_oop(jcp);
2935 args.push_int(for_class);
2936 args.push_oop(filter_classes);
2937 Symbol* signature = vmSymbols::encodeAnnotations_signature();
2938 JavaCalls::call_static(&result,
2939 vm_support,
2940 vmSymbols::encodeAnnotations_name(),
2941 signature,
2942 &args,
2943 CHECK_NULL);
2944
2945 oop res = result.get_oop();
2946 if (JVMCIENV->is_hotspot()) {
2947 return (jbyteArray) JNIHandles::make_local(THREAD, res);
2948 }
2949
2950 typeArrayOop ba = typeArrayOop(res);
2951 int ba_len = ba->length();
2952 jbyte* ba_buf = NEW_RESOURCE_ARRAY_IN_THREAD_RETURN_NULL(THREAD, jbyte, ba_len);
2953 if (ba_buf == nullptr) {
2954 JVMCI_THROW_MSG_NULL(InternalError,
2955 err_msg("could not allocate %d bytes", ba_len));
2956
2957 }
2958 memcpy(ba_buf, ba->byte_at_addr(0), ba_len);
2959 JVMCIPrimitiveArray ba_dest = JVMCIENV->new_byteArray(ba_len, JVMCI_CHECK_NULL);
2960 JVMCIENV->copy_bytes_from(ba_buf, ba_dest, 0, ba_len);
2961 return JVMCIENV->get_jbyteArray(ba_dest);
2962 }
2963
2964 C2V_VMENTRY_NULL(jbyteArray, getEncodedClassAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass),
2965 jobject filter, jint filter_length, jlong filter_klass_pointers))
2966 CompilerThreadCanCallJava canCallJava(thread, true); // Requires Java support
2967 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass));
2968 return get_encoded_annotation_data(holder, holder->class_annotations(), true, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2969 C2V_END
2970
2971 C2V_VMENTRY_NULL(jbyteArray, getEncodedExecutableAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(method),
2972 jobject filter, jint filter_length, jlong filter_klass_pointers))
2973 CompilerThreadCanCallJava canCallJava(thread, true); // Requires Java support
2974 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
2975 return get_encoded_annotation_data(method->method_holder(), method->annotations(), false, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2976 C2V_END
2977
2978 C2V_VMENTRY_NULL(jbyteArray, getEncodedFieldAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index,
2979 jobject filter, jint filter_length, jlong filter_klass_pointers))
2980 CompilerThreadCanCallJava canCallJava(thread, true); // Requires Java support
2981 InstanceKlass* holder = check_field(InstanceKlass::cast(UNPACK_PAIR(Klass, klass)), index, JVMCIENV);
2982 fieldDescriptor fd(holder, index);
2983 return get_encoded_annotation_data(holder, fd.annotations(), false, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2984 C2V_END
2985
2986 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current))
2987 FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address);
2988 int result_length = 0;
2989 for (FailedSpeculation* fs = head; fs != nullptr; fs = fs->next()) {
2990 result_length++;
2991 }
2992 int current_length = 0;
2993 JVMCIObjectArray current_array = nullptr;
2994 if (current != nullptr) {
2995 current_array = JVMCIENV->wrap(current);
2996 current_length = JVMCIENV->get_length(current_array);
2997 if (current_length == result_length) {
2998 // No new failures
2999 return current;
3000 }
3001 }
3002 JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL);
3003 int result_index = 0;
3004 for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) {
3005 assert(fs != nullptr, "npe");
3006 JVMCIPrimitiveArray entry;
3007 if (result_index < current_length) {
3008 entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index);
3009 } else {
3010 entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL);
3011 JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len());
3012 }
3013 JVMCIENV->put_object_at(result, result_index++, entry);
3014 }
3015 return JVMCIENV->get_jobjectArray(result);
3016 C2V_END
3017
3018 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
3019 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
3020 MethodData* method_data = get_profiling_method_data(method, CHECK_0);
3021 return (jlong) method_data->get_failed_speculations_address();
3022 C2V_END
3023
3024 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address))
3025 FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address);
3026 C2V_END
3027
3028 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj))
3029 JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj);
3030 int speculation_len = JVMCIENV->get_length(speculation_handle);
3031 char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len);
3032 JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len);
3033 return FailedSpeculation::add_failed_speculation(nullptr, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len);
3034 C2V_END
3035
3036 C2V_VMENTRY(void, callSystemExit, (JNIEnv* env, jobject, jint status))
3037 if (!JVMCIENV->is_hotspot()) {
3038 // It's generally not safe to call Java code before the module system is initialized
3039 if (!Universe::is_module_initialized()) {
3040 JVMCI_event_1("callSystemExit(%d) before Universe::is_module_initialized() -> direct VM exit", status);
3041 vm_exit_during_initialization();
3042 }
3043 }
3044 CompilerThreadCanCallJava canCallJava(thread, true);
3045 JavaValue result(T_VOID);
3046 JavaCallArguments jargs(1);
3047 jargs.push_int(status);
3048 JavaCalls::call_static(&result,
3049 vmClasses::System_klass(),
3050 vmSymbols::exit_method_name(),
3051 vmSymbols::int_void_signature(),
3052 &jargs,
3053 CHECK);
3054 C2V_END
3055
3056 C2V_VMENTRY_0(jlong, ticksNow, (JNIEnv* env, jobject))
3057 return CompilerEvent::ticksNow();
3058 C2V_END
3059
3060 C2V_VMENTRY_0(jint, registerCompilerPhase, (JNIEnv* env, jobject, jstring jphase_name))
3061 #if INCLUDE_JFR
3062 JVMCIObject phase_name = JVMCIENV->wrap(jphase_name);
3063 const char *name = JVMCIENV->as_utf8_string(phase_name);
3064 return CompilerEvent::PhaseEvent::get_phase_id(name, true, true, true);
3065 #else
3066 return -1;
3067 #endif // !INCLUDE_JFR
3068 C2V_END
3069
3070 C2V_VMENTRY(void, notifyCompilerPhaseEvent, (JNIEnv* env, jobject, jlong startTime, jint phase, jint compileId, jint level))
3071 EventCompilerPhase event(UNTIMED);
3072 if (event.should_commit()) {
3073 CompilerEvent::PhaseEvent::post(event, startTime, phase, compileId, level);
3074 }
3075 C2V_END
3076
3077 C2V_VMENTRY(void, notifyCompilerInliningEvent, (JNIEnv* env, jobject, jint compileId, ARGUMENT_PAIR(caller), ARGUMENT_PAIR(callee), jboolean succeeded, jstring jmessage, jint bci))
3078 EventCompilerInlining event;
3079 if (event.should_commit()) {
3080 Method* caller = UNPACK_PAIR(Method, caller);
3081 Method* callee = UNPACK_PAIR(Method, callee);
3082 JVMCIObject message = JVMCIENV->wrap(jmessage);
3083 CompilerEvent::InlineEvent::post(event, compileId, caller, callee, succeeded, JVMCIENV->as_utf8_string(message), bci);
3084 }
3085 C2V_END
3086
3087 C2V_VMENTRY(void, setThreadLocalObject, (JNIEnv* env, jobject, jint id, jobject value))
3088 requireInHotSpot("setThreadLocalObject", JVMCI_CHECK);
3089 if (id == 0) {
3090 thread->set_jvmci_reserved_oop0(JNIHandles::resolve(value));
3091 return;
3092 }
3093 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
3094 err_msg("%d is not a valid thread local id", id));
3095 C2V_END
3096
3097 C2V_VMENTRY_NULL(jobject, getThreadLocalObject, (JNIEnv* env, jobject, jint id))
3098 requireInHotSpot("getThreadLocalObject", JVMCI_CHECK_NULL);
3099 if (id == 0) {
3100 return JNIHandles::make_local(thread->get_jvmci_reserved_oop0());
3101 }
3102 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
3103 err_msg("%d is not a valid thread local id", id));
3104 C2V_END
3105
3106 C2V_VMENTRY(void, setThreadLocalLong, (JNIEnv* env, jobject, jint id, jlong value))
3107 requireInHotSpot("setThreadLocalLong", JVMCI_CHECK);
3108 if (id == 0) {
3109 thread->set_jvmci_reserved0(value);
3110 } else if (id == 1) {
3111 thread->set_jvmci_reserved1(value);
3112 } else {
3113 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
3114 err_msg("%d is not a valid thread local id", id));
3115 }
3116 C2V_END
3117
3118 C2V_VMENTRY_0(jlong, getThreadLocalLong, (JNIEnv* env, jobject, jint id))
3119 requireInHotSpot("getThreadLocalLong", JVMCI_CHECK_0);
3120 if (id == 0) {
3121 return thread->get_jvmci_reserved0();
3122 } else if (id == 1) {
3123 return thread->get_jvmci_reserved1();
3124 } else {
3125 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
3126 err_msg("%d is not a valid thread local id", id));
3127 }
3128 C2V_END
3129
3130 C2V_VMENTRY(void, getOopMapAt, (JNIEnv* env, jobject, ARGUMENT_PAIR(method),
3131 jint bci, jlongArray oop_map_handle))
3132 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
3133 if (bci < 0 || bci >= method->code_size()) {
3134 JVMCI_THROW_MSG(IllegalArgumentException,
3135 err_msg("bci %d is out of bounds [0 .. %d)", bci, method->code_size()));
3136 }
3137 InterpreterOopMap mask;
3138 OopMapCache::compute_one_oop_map(method, bci, &mask);
3139 if (!mask.has_valid_mask()) {
3140 JVMCI_THROW_MSG(IllegalArgumentException, err_msg("bci %d is not valid", bci));
3141 }
3142 if (mask.number_of_entries() == 0) {
3143 return;
3144 }
3145
3146 int nslots = method->max_locals() + method->max_stack();
3147 int nwords = ((nslots - 1) / 64) + 1;
3148 JVMCIPrimitiveArray oop_map = JVMCIENV->wrap(oop_map_handle);
3149 int oop_map_len = JVMCIENV->get_length(oop_map);
3150 if (nwords > oop_map_len) {
3151 JVMCI_THROW_MSG(IllegalArgumentException,
3152 err_msg("oop map too short: %d > %d", nwords, oop_map_len));
3153 }
3154
3155 jlong* oop_map_buf = NEW_RESOURCE_ARRAY_IN_THREAD_RETURN_NULL(THREAD, jlong, nwords);
3156 if (oop_map_buf == nullptr) {
3157 JVMCI_THROW_MSG(InternalError, err_msg("could not allocate %d longs", nwords));
3158 }
3159 for (int i = 0; i < nwords; i++) {
3160 oop_map_buf[i] = 0L;
3161 }
3162
3163 BitMapView oop_map_view = BitMapView((BitMap::bm_word_t*) oop_map_buf, nwords * BitsPerLong);
3164 for (int i = 0; i < nslots; i++) {
3165 if (mask.is_oop(i)) {
3166 oop_map_view.set_bit(i);
3167 }
3168 }
3169 JVMCIENV->copy_longs_from((jlong*)oop_map_buf, oop_map, 0, nwords);
3170 C2V_END
3171
3172 #define CC (char*) /*cast a literal from (const char*)*/
3173 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
3174
3175 #define STRING "Ljava/lang/String;"
3176 #define OBJECT "Ljava/lang/Object;"
3177 #define CLASS "Ljava/lang/Class;"
3178 #define OBJECTCONSTANT "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;"
3179 #define EXECUTABLE "Ljava/lang/reflect/Executable;"
3180 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;"
3181 #define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;"
3182 #define BYTECODE_FRAME "Ljdk/vm/ci/code/BytecodeFrame;"
3183 #define JAVACONSTANT "Ljdk/vm/ci/meta/JavaConstant;"
3184 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;"
3185 #define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
3186 #define FIELDINFO "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl$FieldInfo;"
3187 #define HS_RESOLVED_TYPE "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;"
3188 #define HS_INSTALLED_CODE "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;"
3189 #define HS_NMETHOD "Ljdk/vm/ci/hotspot/HotSpotNmethod;"
3190 #define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
3191 #define HS_CONFIG "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
3192 #define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
3193 #define HS_SPECULATION_LOG "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
3194 #define REFLECTION_EXECUTABLE "Ljava/lang/reflect/Executable;"
3195 #define REFLECTION_FIELD "Ljava/lang/reflect/Field;"
3196
3197 // Types wrapping VM pointers. The ...2 macro is for a pair: (wrapper, pointer)
3198 #define HS_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
3199 #define HS_METHOD2 "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;J"
3200 #define HS_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
3201 #define HS_KLASS2 "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;J"
3202 #define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
3203 #define HS_CONSTANT_POOL2 "Ljdk/vm/ci/hotspot/HotSpotConstantPool;J"
3204
3205 JNINativeMethod CompilerToVM::methods[] = {
3206 {CC "getBytecode", CC "(" HS_METHOD2 ")[B", FN_PTR(getBytecode)},
3207 {CC "getExceptionTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getExceptionTableStart)},
3208 {CC "getExceptionTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getExceptionTableLength)},
3209 {CC "findUniqueConcreteMethod", CC "(" HS_KLASS2 HS_METHOD2 ")" HS_METHOD, FN_PTR(findUniqueConcreteMethod)},
3210 {CC "getImplementor", CC "(" HS_KLASS2 ")" HS_KLASS, FN_PTR(getImplementor)},
3211 {CC "getStackTraceElement", CC "(" HS_METHOD2 "I)" STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)},
3212 {CC "methodIsIgnoredBySecurityStackWalk", CC "(" HS_METHOD2 ")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)},
3213 {CC "setNotInlinableOrCompilable", CC "(" HS_METHOD2 ")V", FN_PTR(setNotInlinableOrCompilable)},
3214 {CC "isCompilable", CC "(" HS_METHOD2 ")Z", FN_PTR(isCompilable)},
3215 {CC "hasNeverInlineDirective", CC "(" HS_METHOD2 ")Z", FN_PTR(hasNeverInlineDirective)},
3216 {CC "shouldInlineMethod", CC "(" HS_METHOD2 ")Z", FN_PTR(shouldInlineMethod)},
3217 {CC "lookupType", CC "(" STRING HS_KLASS2 "IZ)" HS_RESOLVED_TYPE, FN_PTR(lookupType)},
3218 {CC "lookupJClass", CC "(J)" HS_RESOLVED_TYPE, FN_PTR(lookupJClass)},
3219 {CC "getArrayType", CC "(C" HS_KLASS2 ")" HS_KLASS, FN_PTR(getArrayType)},
3220 {CC "lookupClass", CC "(" CLASS ")" HS_RESOLVED_TYPE, FN_PTR(lookupClass)},
3221 {CC "lookupNameInPool", CC "(" HS_CONSTANT_POOL2 "II)" STRING, FN_PTR(lookupNameInPool)},
3222 {CC "lookupNameAndTypeRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(lookupNameAndTypeRefIndexInPool)},
3223 {CC "lookupSignatureInPool", CC "(" HS_CONSTANT_POOL2 "II)" STRING, FN_PTR(lookupSignatureInPool)},
3224 {CC "lookupKlassRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(lookupKlassRefIndexInPool)},
3225 {CC "lookupKlassInPool", CC "(" HS_CONSTANT_POOL2 "I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)},
3226 {CC "lookupAppendixInPool", CC "(" HS_CONSTANT_POOL2 "II)" OBJECTCONSTANT, FN_PTR(lookupAppendixInPool)},
3227 {CC "lookupMethodInPool", CC "(" HS_CONSTANT_POOL2 "IB" HS_METHOD2 ")" HS_METHOD, FN_PTR(lookupMethodInPool)},
3228 {CC "lookupConstantInPool", CC "(" HS_CONSTANT_POOL2 "IZ)" JAVACONSTANT, FN_PTR(lookupConstantInPool)},
3229 {CC "resolveBootstrapMethod", CC "(" HS_CONSTANT_POOL2 "I)[" OBJECT, FN_PTR(resolveBootstrapMethod)},
3230 {CC "bootstrapArgumentIndexAt", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(bootstrapArgumentIndexAt)},
3231 {CC "getUncachedStringInPool", CC "(" HS_CONSTANT_POOL2 "I)" JAVACONSTANT, FN_PTR(getUncachedStringInPool)},
3232 {CC "resolveTypeInPool", CC "(" HS_CONSTANT_POOL2 "I)" HS_KLASS, FN_PTR(resolveTypeInPool)},
3233 {CC "resolveFieldInPool", CC "(" HS_CONSTANT_POOL2 "I" HS_METHOD2 "B[I)" HS_KLASS, FN_PTR(resolveFieldInPool)},
3234 {CC "decodeFieldIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(decodeFieldIndexToCPIndex)},
3235 {CC "decodeMethodIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(decodeMethodIndexToCPIndex)},
3236 {CC "decodeIndyIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "IZ)I", FN_PTR(decodeIndyIndexToCPIndex)},
3237 {CC "resolveInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "I)V", FN_PTR(resolveInvokeHandleInPool)},
3238 {CC "isResolvedInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(isResolvedInvokeHandleInPool)},
3239 {CC "resolveMethod", CC "(" HS_KLASS2 HS_METHOD2 HS_KLASS2 ")" HS_METHOD, FN_PTR(resolveMethod)},
3240 {CC "getSignaturePolymorphicHolders", CC "()[" STRING, FN_PTR(getSignaturePolymorphicHolders)},
3241 {CC "getVtableIndexForInterfaceMethod", CC "(" HS_KLASS2 HS_METHOD2 ")I", FN_PTR(getVtableIndexForInterfaceMethod)},
3242 {CC "getClassInitializer", CC "(" HS_KLASS2 ")" HS_METHOD, FN_PTR(getClassInitializer)},
3243 {CC "hasFinalizableSubclass", CC "(" HS_KLASS2 ")Z", FN_PTR(hasFinalizableSubclass)},
3244 {CC "getMaxCallTargetOffset", CC "(J)J", FN_PTR(getMaxCallTargetOffset)},
3245 {CC "asResolvedJavaMethod", CC "(" EXECUTABLE ")" HS_METHOD, FN_PTR(asResolvedJavaMethod)},
3246 {CC "getResolvedJavaMethod", CC "(" OBJECTCONSTANT "J)" HS_METHOD, FN_PTR(getResolvedJavaMethod)},
3247 {CC "getConstantPool", CC "(" OBJECT "JZ)" HS_CONSTANT_POOL, FN_PTR(getConstantPool)},
3248 {CC "getResolvedJavaType0", CC "(Ljava/lang/Object;JZ)" HS_KLASS, FN_PTR(getResolvedJavaType0)},
3249 {CC "readConfiguration", CC "()[" OBJECT, FN_PTR(readConfiguration)},
3250 {CC "installCode0", CC "(JJZ" HS_COMPILED_CODE "[" OBJECT INSTALLED_CODE "J[B)I", FN_PTR(installCode0)},
3251 {CC "getInstallCodeFlags", CC "()I", FN_PTR(getInstallCodeFlags)},
3252 {CC "resetCompilationStatistics", CC "()V", FN_PTR(resetCompilationStatistics)},
3253 {CC "disassembleCodeBlob", CC "(" INSTALLED_CODE ")" STRING, FN_PTR(disassembleCodeBlob)},
3254 {CC "executeHotSpotNmethod", CC "([" OBJECT HS_NMETHOD ")" OBJECT, FN_PTR(executeHotSpotNmethod)},
3255 {CC "getLineNumberTable", CC "(" HS_METHOD2 ")[J", FN_PTR(getLineNumberTable)},
3256 {CC "getLocalVariableTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getLocalVariableTableStart)},
3257 {CC "getLocalVariableTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getLocalVariableTableLength)},
3258 {CC "reprofile", CC "(" HS_METHOD2 ")V", FN_PTR(reprofile)},
3259 {CC "invalidateHotSpotNmethod", CC "(" HS_NMETHOD "Z)V", FN_PTR(invalidateHotSpotNmethod)},
3260 {CC "collectCounters", CC "()[J", FN_PTR(collectCounters)},
3261 {CC "getCountersSize", CC "()I", FN_PTR(getCountersSize)},
3262 {CC "setCountersSize", CC "(I)Z", FN_PTR(setCountersSize)},
3263 {CC "allocateCompileId", CC "(" HS_METHOD2 "I)I", FN_PTR(allocateCompileId)},
3264 {CC "isMature", CC "(J)Z", FN_PTR(isMature)},
3265 {CC "hasCompiledCodeForOSR", CC "(" HS_METHOD2 "II)Z", FN_PTR(hasCompiledCodeForOSR)},
3266 {CC "getSymbol", CC "(J)" STRING, FN_PTR(getSymbol)},
3267 {CC "getSignatureName", CC "(J)" STRING, FN_PTR(getSignatureName)},
3268 {CC "iterateFrames", CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT, FN_PTR(iterateFrames)},
3269 {CC "materializeVirtualObjects", CC "(" HS_STACK_FRAME_REF "Z)V", FN_PTR(materializeVirtualObjects)},
3270 {CC "shouldDebugNonSafepoints", CC "()Z", FN_PTR(shouldDebugNonSafepoints)},
3271 {CC "writeDebugOutput", CC "(JIZ)V", FN_PTR(writeDebugOutput)},
3272 {CC "flushDebugOutput", CC "()V", FN_PTR(flushDebugOutput)},
3273 {CC "methodDataProfileDataSize", CC "(JI)I", FN_PTR(methodDataProfileDataSize)},
3274 {CC "methodDataExceptionSeen", CC "(JI)I", FN_PTR(methodDataExceptionSeen)},
3275 {CC "interpreterFrameSize", CC "(" BYTECODE_FRAME ")I", FN_PTR(interpreterFrameSize)},
3276 {CC "compileToBytecode", CC "(" OBJECTCONSTANT ")V", FN_PTR(compileToBytecode)},
3277 {CC "getFlagValue", CC "(" STRING ")" OBJECT, FN_PTR(getFlagValue)},
3278 {CC "getInterfaces", CC "(" HS_KLASS2 ")[" HS_KLASS, FN_PTR(getInterfaces)},
3279 {CC "getComponentType", CC "(" HS_KLASS2 ")" HS_RESOLVED_TYPE, FN_PTR(getComponentType)},
3280 {CC "ensureInitialized", CC "(" HS_KLASS2 ")V", FN_PTR(ensureInitialized)},
3281 {CC "ensureLinked", CC "(" HS_KLASS2 ")V", FN_PTR(ensureLinked)},
3282 {CC "getIdentityHashCode", CC "(" OBJECTCONSTANT ")I", FN_PTR(getIdentityHashCode)},
3283 {CC "isInternedString", CC "(" OBJECTCONSTANT ")Z", FN_PTR(isInternedString)},
3284 {CC "unboxPrimitive", CC "(" OBJECTCONSTANT ")" OBJECT, FN_PTR(unboxPrimitive)},
3285 {CC "boxPrimitive", CC "(" OBJECT ")" OBJECTCONSTANT, FN_PTR(boxPrimitive)},
3286 {CC "getDeclaredConstructors", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredConstructors)},
3287 {CC "getDeclaredMethods", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredMethods)},
3288 {CC "getDeclaredFieldsInfo", CC "(" HS_KLASS2 ")[" FIELDINFO, FN_PTR(getDeclaredFieldsInfo)},
3289 {CC "readStaticFieldValue", CC "(" HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readStaticFieldValue)},
3290 {CC "readFieldValue", CC "(" OBJECTCONSTANT HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readFieldValue)},
3291 {CC "isInstance", CC "(" HS_KLASS2 OBJECTCONSTANT ")Z", FN_PTR(isInstance)},
3292 {CC "isAssignableFrom", CC "(" HS_KLASS2 HS_KLASS2 ")Z", FN_PTR(isAssignableFrom)},
3293 {CC "isTrustedForIntrinsics", CC "(" HS_KLASS2 ")Z", FN_PTR(isTrustedForIntrinsics)},
3294 {CC "asJavaType", CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE, FN_PTR(asJavaType)},
3295 {CC "asString", CC "(" OBJECTCONSTANT ")" STRING, FN_PTR(asString)},
3296 {CC "equals", CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z", FN_PTR(equals)},
3297 {CC "getJavaMirror", CC "(" HS_KLASS2 ")" OBJECTCONSTANT, FN_PTR(getJavaMirror)},
3298 {CC "getArrayLength", CC "(" OBJECTCONSTANT ")I", FN_PTR(getArrayLength)},
3299 {CC "readArrayElement", CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;", FN_PTR(readArrayElement)},
3300 {CC "arrayBaseOffset", CC "(C)I", FN_PTR(arrayBaseOffset)},
3301 {CC "arrayIndexScale", CC "(C)I", FN_PTR(arrayIndexScale)},
3302 {CC "clearOopHandle", CC "(J)V", FN_PTR(clearOopHandle)},
3303 {CC "releaseClearedOopHandles", CC "()V", FN_PTR(releaseClearedOopHandles)},
3304 {CC "registerNativeMethods", CC "(" CLASS ")[J", FN_PTR(registerNativeMethods)},
3305 {CC "isCurrentThreadAttached", CC "()Z", FN_PTR(isCurrentThreadAttached)},
3306 {CC "getCurrentJavaThread", CC "()J", FN_PTR(getCurrentJavaThread)},
3307 {CC "attachCurrentThread", CC "([BZ[J)Z", FN_PTR(attachCurrentThread)},
3308 {CC "detachCurrentThread", CC "(Z)Z", FN_PTR(detachCurrentThread)},
3309 {CC "translate", CC "(" OBJECT "Z)J", FN_PTR(translate)},
3310 {CC "unhand", CC "(J)" OBJECT, FN_PTR(unhand)},
3311 {CC "updateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(updateHotSpotNmethod)},
3312 {CC "getCode", CC "(" HS_INSTALLED_CODE ")[B", FN_PTR(getCode)},
3313 {CC "asReflectionExecutable", CC "(" HS_METHOD2 ")" REFLECTION_EXECUTABLE, FN_PTR(asReflectionExecutable)},
3314 {CC "asReflectionField", CC "(" HS_KLASS2 "I)" REFLECTION_FIELD, FN_PTR(asReflectionField)},
3315 {CC "getEncodedClassAnnotationData", CC "(" HS_KLASS2 OBJECT "IJ)[B", FN_PTR(getEncodedClassAnnotationData)},
3316 {CC "getEncodedExecutableAnnotationData", CC "(" HS_METHOD2 OBJECT "IJ)[B", FN_PTR(getEncodedExecutableAnnotationData)},
3317 {CC "getEncodedFieldAnnotationData", CC "(" HS_KLASS2 "I" OBJECT "IJ)[B", FN_PTR(getEncodedFieldAnnotationData)},
3318 {CC "getFailedSpeculations", CC "(J[[B)[[B", FN_PTR(getFailedSpeculations)},
3319 {CC "getFailedSpeculationsAddress", CC "(" HS_METHOD2 ")J", FN_PTR(getFailedSpeculationsAddress)},
3320 {CC "releaseFailedSpeculations", CC "(J)V", FN_PTR(releaseFailedSpeculations)},
3321 {CC "addFailedSpeculation", CC "(J[B)Z", FN_PTR(addFailedSpeculation)},
3322 {CC "callSystemExit", CC "(I)V", FN_PTR(callSystemExit)},
3323 {CC "ticksNow", CC "()J", FN_PTR(ticksNow)},
3324 {CC "getThreadLocalObject", CC "(I)" OBJECT, FN_PTR(getThreadLocalObject)},
3325 {CC "setThreadLocalObject", CC "(I" OBJECT ")V", FN_PTR(setThreadLocalObject)},
3326 {CC "getThreadLocalLong", CC "(I)J", FN_PTR(getThreadLocalLong)},
3327 {CC "setThreadLocalLong", CC "(IJ)V", FN_PTR(setThreadLocalLong)},
3328 {CC "registerCompilerPhase", CC "(" STRING ")I", FN_PTR(registerCompilerPhase)},
3329 {CC "notifyCompilerPhaseEvent", CC "(JIII)V", FN_PTR(notifyCompilerPhaseEvent)},
3330 {CC "notifyCompilerInliningEvent", CC "(I" HS_METHOD2 HS_METHOD2 "ZLjava/lang/String;I)V", FN_PTR(notifyCompilerInliningEvent)},
3331 {CC "getOopMapAt", CC "(" HS_METHOD2 "I[J)V", FN_PTR(getOopMapAt)},
3332 };
3333
3334 int CompilerToVM::methods_count() {
3335 return sizeof(methods) / sizeof(JNINativeMethod);
3336 }