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/disassembler.hpp"
35 #include "compiler/oopMap.hpp"
36 #include "interpreter/bytecodeStream.hpp"
37 #include "interpreter/linkResolver.hpp"
38 #include "interpreter/oopMapCache.hpp"
39 #include "jfr/jfrEvents.hpp"
40 #include "jvmci/jvmciCodeInstaller.hpp"
41 #include "jvmci/jvmciCompilerToVM.hpp"
42 #include "jvmci/jvmciRuntime.hpp"
43 #include "logging/log.hpp"
44 #include "logging/logTag.hpp"
45 #include "memory/oopFactory.hpp"
46 #include "memory/universe.hpp"
47 #include "oops/constantPool.inline.hpp"
48 #include "oops/instanceKlass.inline.hpp"
49 #include "oops/instanceMirrorKlass.hpp"
50 #include "oops/method.inline.hpp"
51 #include "oops/objArrayKlass.inline.hpp"
52 #include "oops/typeArrayOop.inline.hpp"
53 #include "prims/jvmtiExport.hpp"
54 #include "prims/methodHandles.hpp"
55 #include "prims/nativeLookup.hpp"
56 #include "runtime/arguments.hpp"
57 #include "runtime/atomic.hpp"
58 #include "runtime/deoptimization.hpp"
59 #include "runtime/fieldDescriptor.inline.hpp"
60 #include "runtime/frame.inline.hpp"
61 #include "runtime/globals_extension.hpp"
62 #include "runtime/interfaceSupport.inline.hpp"
63 #include "runtime/jniHandles.inline.hpp"
64 #include "runtime/reflection.hpp"
65 #include "runtime/stackFrameStream.inline.hpp"
66 #include "runtime/timerTrace.hpp"
67 #include "runtime/vframe.inline.hpp"
68 #include "runtime/vframe_hp.hpp"
69 #if INCLUDE_JFR
70 #include "jfr/jfr.hpp"
71 #endif
72
73 JVMCIKlassHandle::JVMCIKlassHandle(Thread* thread, Klass* klass) {
74 _thread = thread;
75 _klass = klass;
76 if (klass != nullptr) {
77 _holder = Handle(_thread, klass->klass_holder());
78 }
79 }
80
81 JVMCIKlassHandle& JVMCIKlassHandle::operator=(Klass* klass) {
82 _klass = klass;
83 if (klass != nullptr) {
84 _holder = Handle(_thread, klass->klass_holder());
85 }
86 return *this;
87 }
88
89 static void requireInHotSpot(const char* caller, JVMCI_TRAPS) {
90 if (!JVMCIENV->is_hotspot()) {
91 JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot call %s from JVMCI shared library", caller));
92 }
93 }
94
95 class JVMCITraceMark : public StackObj {
96 const char* _msg;
97 public:
98 JVMCITraceMark(const char* msg) {
99 _msg = msg;
100 JVMCI_event_2("Enter %s", _msg);
101 }
102 ~JVMCITraceMark() {
103 JVMCI_event_2(" Exit %s", _msg);
104 }
105 };
106
107 class JavaArgumentUnboxer : public SignatureIterator {
108 protected:
109 JavaCallArguments* _jca;
110 arrayOop _args;
111 int _index;
112
113 Handle next_arg(BasicType expectedType);
114
115 public:
116 JavaArgumentUnboxer(Symbol* signature,
117 JavaCallArguments* jca,
118 arrayOop args,
119 bool is_static)
120 : SignatureIterator(signature)
121 {
122 this->_return_type = T_ILLEGAL;
123 _jca = jca;
124 _index = 0;
125 _args = args;
126 if (!is_static) {
127 _jca->push_oop(next_arg(T_OBJECT));
128 }
129 do_parameters_on(this);
130 assert(_index == args->length(), "arg count mismatch with signature");
131 }
132
133 private:
134 friend class SignatureIterator; // so do_parameters_on can call do_type
135 void do_type(BasicType type) {
136 if (is_reference_type(type)) {
137 _jca->push_oop(next_arg(T_OBJECT));
138 return;
139 }
140 Handle arg = next_arg(type);
141 int box_offset = java_lang_boxing_object::value_offset(type);
142 switch (type) {
143 case T_BOOLEAN: _jca->push_int(arg->bool_field(box_offset)); break;
144 case T_CHAR: _jca->push_int(arg->char_field(box_offset)); break;
145 case T_SHORT: _jca->push_int(arg->short_field(box_offset)); break;
146 case T_BYTE: _jca->push_int(arg->byte_field(box_offset)); break;
147 case T_INT: _jca->push_int(arg->int_field(box_offset)); break;
148 case T_LONG: _jca->push_long(arg->long_field(box_offset)); break;
149 case T_FLOAT: _jca->push_float(arg->float_field(box_offset)); break;
150 case T_DOUBLE: _jca->push_double(arg->double_field(box_offset)); break;
151 default: ShouldNotReachHere();
152 }
153 }
154 };
155
156 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) {
157 assert(_index < _args->length(), "out of bounds");
158 oop arg=((objArrayOop) (_args))->obj_at(_index++);
159 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
160 return Handle(Thread::current(), arg);
161 }
162
163 // Bring the JVMCI compiler thread into the VM state.
164 #define JVMCI_VM_ENTRY_MARK \
165 MACOS_AARCH64_ONLY(ThreadWXEnable __wx(WXWrite, thread)); \
166 ThreadInVMfromNative __tiv(thread); \
167 HandleMarkCleaner __hm(thread); \
168 JavaThread* THREAD = thread; \
169 debug_only(VMNativeEntryWrapper __vew;)
170
171 // Native method block that transitions current thread to '_thread_in_vm'.
172 // Note: CompilerThreadCanCallJava must precede JVMCIENV_FROM_JNI so that
173 // the translation of an uncaught exception in the JVMCIEnv does not make
174 // a Java call when __is_hotspot == false.
175 #define C2V_BLOCK(result_type, name, signature) \
176 JVMCI_VM_ENTRY_MARK; \
177 ResourceMark rm; \
178 bool __is_hotspot = env == thread->jni_environment(); \
179 CompilerThreadCanCallJava ccj(thread, __is_hotspot); \
180 JVMCIENV_FROM_JNI(JVMCI::compilation_tick(thread), env); \
181
182 // Entry to native method implementation that transitions
183 // current thread to '_thread_in_vm'.
184 #define C2V_VMENTRY(result_type, name, signature) \
185 result_type JNICALL c2v_ ## name signature { \
186 JavaThread* thread = JavaThread::current_or_null(); \
187 if (thread == nullptr) { \
188 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
189 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
190 return; \
191 } \
192 C2V_BLOCK(result_type, name, signature) \
193 JVMCITraceMark jtm("CompilerToVM::" #name);
194
195 #define C2V_VMENTRY_(result_type, name, signature, result) \
196 result_type JNICALL c2v_ ## name signature { \
197 JavaThread* thread = JavaThread::current_or_null(); \
198 if (thread == nullptr) { \
199 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
200 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
201 return result; \
202 } \
203 C2V_BLOCK(result_type, name, signature) \
204 JVMCITraceMark jtm("CompilerToVM::" #name);
205
206 #define C2V_VMENTRY_NULL(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, nullptr)
207 #define C2V_VMENTRY_0(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, 0)
208
209 // Entry to native method implementation that does not transition
210 // current thread to '_thread_in_vm'.
211 #define C2V_VMENTRY_PREFIX(result_type, name, signature) \
212 result_type JNICALL c2v_ ## name signature { \
213 JavaThread* thread = JavaThread::current_or_null();
214
215 #define C2V_END }
216
217 #define JNI_THROW(caller, name, msg) do { \
218 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
219 if (__throw_res != JNI_OK) { \
220 JVMCI_event_1("Throwing " #name " in " caller " returned %d", __throw_res); \
221 } \
222 return; \
223 } while (0);
224
225 #define JNI_THROW_(caller, name, msg, result) do { \
226 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
227 if (__throw_res != JNI_OK) { \
228 JVMCI_event_1("Throwing " #name " in " caller " returned %d", __throw_res); \
229 } \
230 return result; \
231 } while (0)
232
233 jobjectArray readConfiguration0(JNIEnv *env, JVMCI_TRAPS);
234
235 C2V_VMENTRY_NULL(jobjectArray, readConfiguration, (JNIEnv* env))
236 jobjectArray config = readConfiguration0(env, JVMCI_CHECK_NULL);
237 return config;
238 }
239
240 C2V_VMENTRY_NULL(jobject, getFlagValue, (JNIEnv* env, jobject c2vm, jobject name_handle))
241 #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();
242 #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();
243 JVMCIObject name = JVMCIENV->wrap(name_handle);
244 if (name.is_null()) {
245 JVMCI_THROW_NULL(NullPointerException);
246 }
247 const char* cstring = JVMCIENV->as_utf8_string(name);
248 const JVMFlag* flag = JVMFlag::find_declared_flag(cstring);
249 if (flag == nullptr) {
250 return c2vm;
251 }
252 if (flag->is_bool()) {
253 jvalue prim;
254 prim.z = flag->get_bool();
255 JVMCIObject box = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL);
256 return JVMCIENV->get_jobject(box);
257 } else if (flag->is_ccstr()) {
258 JVMCIObject value = JVMCIENV->create_string(flag->get_ccstr(), JVMCI_CHECK_NULL);
259 return JVMCIENV->get_jobject(value);
260 } else if (flag->is_intx()) {
261 RETURN_BOXED_LONG(flag->get_intx());
262 } else if (flag->is_int()) {
263 RETURN_BOXED_LONG(flag->get_int());
264 } else if (flag->is_uint()) {
265 RETURN_BOXED_LONG(flag->get_uint());
266 } else if (flag->is_uint64_t()) {
267 RETURN_BOXED_LONG(flag->get_uint64_t());
268 } else if (flag->is_size_t()) {
269 RETURN_BOXED_LONG(flag->get_size_t());
270 } else if (flag->is_uintx()) {
271 RETURN_BOXED_LONG(flag->get_uintx());
272 } else if (flag->is_double()) {
273 RETURN_BOXED_DOUBLE(flag->get_double());
274 } else {
275 JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->name(), flag->type_string());
276 }
277 #undef RETURN_BOXED_LONG
278 #undef RETURN_BOXED_DOUBLE
279 C2V_END
280
281 // Macros for argument pairs representing a wrapper object and its wrapped VM pointer
282 #define ARGUMENT_PAIR(name) jobject name ## _obj, jlong name ## _pointer
283 #define UNPACK_PAIR(type, name) ((type*) name ## _pointer)
284
285 C2V_VMENTRY_NULL(jbyteArray, getBytecode, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
286 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
287
288 int code_size = method->code_size();
289 jbyte* reconstituted_code = NEW_RESOURCE_ARRAY(jbyte, code_size);
290
291 guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
292 // iterate over all bytecodes and replace non-Java bytecodes
293
294 for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
295 Bytecodes::Code code = s.code();
296 Bytecodes::Code raw_code = s.raw_code();
297 int bci = s.bci();
298 int len = s.instruction_size();
299
300 // Restore original byte code.
301 reconstituted_code[bci] = (jbyte) (s.is_wide()? Bytecodes::_wide : code);
302 if (len > 1) {
303 memcpy(reconstituted_code + (bci + 1), s.bcp()+1, len-1);
304 }
305
306 if (len > 1) {
307 // Restore the big-endian constant pool indexes.
308 // Cf. Rewriter::scan_method
309 switch (code) {
310 case Bytecodes::_getstatic:
311 case Bytecodes::_putstatic:
312 case Bytecodes::_getfield:
313 case Bytecodes::_putfield:
314 case Bytecodes::_invokevirtual:
315 case Bytecodes::_invokespecial:
316 case Bytecodes::_invokestatic:
317 case Bytecodes::_invokeinterface:
318 case Bytecodes::_invokehandle: {
319 int cp_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
320 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
321 break;
322 }
323
324 case Bytecodes::_invokedynamic: {
325 int cp_index = Bytes::get_native_u4((address) reconstituted_code + (bci + 1));
326 Bytes::put_Java_u4((address) reconstituted_code + (bci + 1), (u4) cp_index);
327 break;
328 }
329
330 default:
331 break;
332 }
333
334 // Not all ldc byte code are rewritten.
335 switch (raw_code) {
336 case Bytecodes::_fast_aldc: {
337 int cpc_index = reconstituted_code[bci + 1] & 0xff;
338 int cp_index = method->constants()->object_to_cp_index(cpc_index);
339 assert(cp_index < method->constants()->length(), "sanity check");
340 reconstituted_code[bci + 1] = (jbyte) cp_index;
341 break;
342 }
343
344 case Bytecodes::_fast_aldc_w: {
345 int cpc_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
346 int cp_index = method->constants()->object_to_cp_index(cpc_index);
347 assert(cp_index < method->constants()->length(), "sanity check");
348 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
349 break;
350 }
351
352 default:
353 break;
354 }
355 }
356 }
357
358 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
359 JVMCIENV->copy_bytes_from(reconstituted_code, result, 0, code_size);
360 return JVMCIENV->get_jbyteArray(result);
361 C2V_END
362
363 C2V_VMENTRY_0(jint, getExceptionTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
364 Method* method = UNPACK_PAIR(Method, method);
365 return method->exception_table_length();
366 C2V_END
367
368 C2V_VMENTRY_0(jlong, getExceptionTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
369 Method* method = UNPACK_PAIR(Method, method);
370 if (method->exception_table_length() == 0) {
371 return 0L;
372 }
373 return (jlong) (address) method->exception_table_start();
374 C2V_END
375
376 C2V_VMENTRY_NULL(jobject, asResolvedJavaMethod, (JNIEnv* env, jobject, jobject executable_handle))
377 requireInHotSpot("asResolvedJavaMethod", JVMCI_CHECK_NULL);
378 oop executable = JNIHandles::resolve(executable_handle);
379 oop mirror = nullptr;
380 int slot = 0;
381
382 if (executable->klass() == vmClasses::reflect_Constructor_klass()) {
383 mirror = java_lang_reflect_Constructor::clazz(executable);
384 slot = java_lang_reflect_Constructor::slot(executable);
385 } else {
386 assert(executable->klass() == vmClasses::reflect_Method_klass(), "wrong type");
387 mirror = java_lang_reflect_Method::clazz(executable);
388 slot = java_lang_reflect_Method::slot(executable);
389 }
390 Klass* holder = java_lang_Class::as_Klass(mirror);
391 methodHandle method (THREAD, InstanceKlass::cast(holder)->method_with_idnum(slot));
392 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
393 return JVMCIENV->get_jobject(result);
394 }
395
396 C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset))
397 Method* method = nullptr;
398 JVMCIObject base_object = JVMCIENV->wrap(base);
399 if (base_object.is_null()) {
400 method = *((Method**)(offset));
401 } else {
402 Handle obj = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
403 if (obj->is_a(vmClasses::ResolvedMethodName_klass())) {
404 method = (Method*) (intptr_t) obj->long_field(offset);
405 } else {
406 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", obj->klass()->external_name()));
407 }
408 }
409 if (method == nullptr) {
410 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
411 }
412 assert (method->is_method(), "invalid read");
413 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, method), JVMCI_CHECK_NULL);
414 return JVMCIENV->get_jobject(result);
415 }
416
417 C2V_VMENTRY_NULL(jobject, getConstantPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass_or_method), jboolean is_klass))
418 ConstantPool* cp = nullptr;
419 if (UNPACK_PAIR(address, klass_or_method) == 0) {
420 JVMCI_THROW_NULL(NullPointerException);
421 }
422 if (!is_klass) {
423 cp = (UNPACK_PAIR(Method, klass_or_method))->constMethod()->constants();
424 } else {
425 cp = InstanceKlass::cast(UNPACK_PAIR(Klass, klass_or_method))->constants();
426 }
427
428 JVMCIObject result = JVMCIENV->get_jvmci_constant_pool(constantPoolHandle(THREAD, cp), JVMCI_CHECK_NULL);
429 return JVMCIENV->get_jobject(result);
430 }
431
432 C2V_VMENTRY_NULL(jobject, getResolvedJavaType0, (JNIEnv* env, jobject, jobject base, jlong offset, jboolean compressed))
433 JVMCIObject base_object = JVMCIENV->wrap(base);
434 if (base_object.is_null()) {
435 JVMCI_THROW_MSG_NULL(NullPointerException, "base object is null");
436 }
437
438 const char* base_desc = nullptr;
439 JVMCIKlassHandle klass(THREAD);
440 if (offset == oopDesc::klass_offset_in_bytes()) {
441 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
442 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
443 klass = base_oop->klass();
444 } else {
445 goto unexpected;
446 }
447 } else if (!compressed) {
448 if (JVMCIENV->isa_HotSpotConstantPool(base_object)) {
449 ConstantPool* cp = JVMCIENV->asConstantPool(base_object);
450 if (offset == in_bytes(ConstantPool::pool_holder_offset())) {
451 klass = cp->pool_holder();
452 } else {
453 base_desc = FormatBufferResource("[constant pool for %s]", cp->pool_holder()->signature_name());
454 goto unexpected;
455 }
456 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
457 Klass* base_klass = JVMCIENV->asKlass(base_object);
458 if (offset == in_bytes(Klass::subklass_offset())) {
459 klass = base_klass->subklass();
460 } else if (offset == in_bytes(Klass::super_offset())) {
461 klass = base_klass->super();
462 } else if (offset == in_bytes(Klass::next_sibling_offset())) {
463 klass = base_klass->next_sibling();
464 } else if (offset == in_bytes(ObjArrayKlass::element_klass_offset()) && base_klass->is_objArray_klass()) {
465 klass = ObjArrayKlass::cast(base_klass)->element_klass();
466 } else if (offset >= in_bytes(Klass::primary_supers_offset()) &&
467 offset < in_bytes(Klass::primary_supers_offset()) + (int) (sizeof(Klass*) * Klass::primary_super_limit()) &&
468 offset % sizeof(Klass*) == 0) {
469 // Offset is within the primary supers array
470 int index = (int) ((offset - in_bytes(Klass::primary_supers_offset())) / sizeof(Klass*));
471 klass = base_klass->primary_super_of_depth(index);
472 } else {
473 base_desc = FormatBufferResource("[%s]", base_klass->signature_name());
474 goto unexpected;
475 }
476 } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
477 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
478 if (base_oop->is_a(vmClasses::Class_klass())) {
479 if (offset == java_lang_Class::klass_offset()) {
480 klass = java_lang_Class::as_Klass(base_oop());
481 } else if (offset == java_lang_Class::array_klass_offset()) {
482 klass = java_lang_Class::array_klass_acquire(base_oop());
483 } else {
484 base_desc = FormatBufferResource("[Class=%s]", java_lang_Class::as_Klass(base_oop())->signature_name());
485 goto unexpected;
486 }
487 } else {
488 if (!base_oop.is_null()) {
489 base_desc = FormatBufferResource("[%s]", base_oop()->klass()->signature_name());
490 }
491 goto unexpected;
492 }
493 } else if (JVMCIENV->isa_HotSpotMethodData(base_object)) {
494 jlong base_address = (intptr_t) JVMCIENV->asMethodData(base_object);
495 klass = *((Klass**) (intptr_t) (base_address + offset));
496 if (klass == nullptr || !klass->is_loader_alive()) {
497 // Klasses in methodData might be concurrently unloading so return null in that case.
498 return nullptr;
499 }
500 } else {
501 goto unexpected;
502 }
503 } else {
504 goto unexpected;
505 }
506
507 {
508 if (klass == nullptr) {
509 return nullptr;
510 }
511 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
512 return JVMCIENV->get_jobject(result);
513 }
514
515 unexpected:
516 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
517 err_msg("Unexpected arguments: %s%s " JLONG_FORMAT " %s",
518 JVMCIENV->klass_name(base_object), base_desc == nullptr ? "" : base_desc,
519 offset, compressed ? "true" : "false"));
520 }
521
522 C2V_VMENTRY_NULL(jobject, findUniqueConcreteMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method)))
523 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
524 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass));
525 if (holder->is_interface()) {
526 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Interface %s should be handled in Java code", holder->external_name()));
527 }
528 if (method->can_be_statically_bound()) {
529 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()));
530 }
531
532 methodHandle ucm;
533 {
534 MutexLocker locker(Compile_lock);
535 ucm = methodHandle(THREAD, Dependencies::find_unique_concrete_method(holder, method()));
536 }
537 JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL);
538 return JVMCIENV->get_jobject(result);
539 C2V_END
540
541 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
542 Klass* klass = UNPACK_PAIR(Klass, klass);
543 if (!klass->is_interface()) {
544 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
545 err_msg("Expected interface type, got %s", klass->external_name()));
546 }
547 InstanceKlass* iklass = InstanceKlass::cast(klass);
548 JVMCIKlassHandle handle(THREAD, iklass->implementor());
549 JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
550 return JVMCIENV->get_jobject(implementor);
551 C2V_END
552
553 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
554 Method* method = UNPACK_PAIR(Method, method);
555 return method->is_ignored_by_security_stack_walk();
556 C2V_END
557
558 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
559 Method* method = UNPACK_PAIR(Method, method);
560 // Skip redefined methods
561 if (method->is_old()) {
562 return false;
563 }
564 return !method->is_not_compilable(CompLevel_full_optimization);
565 C2V_END
566
567 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
568 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
569 return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
570 C2V_END
571
572 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
573 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
574 return CompilerOracle::should_inline(method) || method->force_inline();
575 C2V_END
576
577 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, ARGUMENT_PAIR(accessing_klass), jint accessing_klass_loader, jboolean resolve))
578 CompilerThreadCanCallJava canCallJava(thread, resolve); // Resolution requires Java calls
579 JVMCIObject name = JVMCIENV->wrap(jname);
580 const char* str = JVMCIENV->as_utf8_string(name);
581 TempNewSymbol class_name = SymbolTable::new_symbol(str);
582
583 if (class_name->utf8_length() <= 1) {
584 JVMCI_THROW_MSG_0(InternalError, err_msg("Primitive type %s should be handled in Java code", str));
585 }
586
587 #ifdef ASSERT
588 const char* val = Arguments::PropertyList_get_value(Arguments::system_properties(), "test.jvmci.lookupTypeException");
589 if (val != nullptr) {
590 if (strstr(val, "<trace>") != nullptr) {
591 tty->print_cr("CompilerToVM.lookupType: %s", str);
592 } else if (strstr(str, val) != nullptr) {
593 THROW_MSG_0(vmSymbols::java_lang_Exception(),
594 err_msg("lookupTypeException: %s", str));
595 }
596 }
597 #endif
598
599 JVMCIKlassHandle resolved_klass(THREAD);
600 Klass* accessing_klass = UNPACK_PAIR(Klass, accessing_klass);
601 Handle class_loader;
602 Handle protection_domain;
603 if (accessing_klass != nullptr) {
604 class_loader = Handle(THREAD, accessing_klass->class_loader());
605 protection_domain = Handle(THREAD, accessing_klass->protection_domain());
606 } else {
607 switch (accessing_klass_loader) {
608 case 0: break; // class_loader is already null, the boot loader
609 case 1: class_loader = Handle(THREAD, SystemDictionary::java_platform_loader()); break;
610 case 2: class_loader = Handle(THREAD, SystemDictionary::java_system_loader()); break;
611 default:
612 JVMCI_THROW_MSG_0(InternalError, err_msg("Illegal class loader value: %d", accessing_klass_loader));
613 }
614 JVMCIENV->runtime()->initialize(JVMCI_CHECK_NULL);
615 }
616
617 if (resolve) {
618 resolved_klass = SystemDictionary::resolve_or_fail(class_name, class_loader, protection_domain, true, CHECK_NULL);
619 } else {
620 if (Signature::has_envelope(class_name)) {
621 // This is a name from a signature. Strip off the trimmings.
622 // Call recursive to keep scope of strippedsym.
623 TempNewSymbol strippedsym = Signature::strip_envelope(class_name);
624 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym,
625 class_loader,
626 protection_domain);
627 } else if (Signature::is_array(class_name)) {
628 SignatureStream ss(class_name, false);
629 int ndim = ss.skip_array_prefix();
630 if (ss.type() == T_OBJECT) {
631 Symbol* strippedsym = ss.as_symbol();
632 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym,
633 class_loader,
634 protection_domain);
635 if (!resolved_klass.is_null()) {
636 resolved_klass = resolved_klass->array_klass(ndim, CHECK_NULL);
637 }
638 } else {
639 resolved_klass = TypeArrayKlass::cast(Universe::typeArrayKlassObj(ss.type()))->array_klass(ndim, CHECK_NULL);
640 }
641 } else {
642 resolved_klass = SystemDictionary::find_instance_klass(THREAD, class_name,
643 class_loader,
644 protection_domain);
645 }
646 }
647 JVMCIObject result = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
648 return JVMCIENV->get_jobject(result);
649 C2V_END
650
651 C2V_VMENTRY_NULL(jobject, getArrayType, (JNIEnv* env, jobject, jchar type_char, ARGUMENT_PAIR(klass)))
652 JVMCIKlassHandle array_klass(THREAD);
653 Klass* klass = UNPACK_PAIR(Klass, klass);
654 if (klass == nullptr) {
655 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
656 if (type == T_VOID) {
657 return nullptr;
658 }
659 array_klass = Universe::typeArrayKlassObj(type);
660 if (array_klass == nullptr) {
661 JVMCI_THROW_MSG_NULL(InternalError, err_msg("No array klass for primitive type %s", type2name(type)));
662 }
663 } else {
664 array_klass = klass->array_klass(CHECK_NULL);
665 }
666 JVMCIObject result = JVMCIENV->get_jvmci_type(array_klass, JVMCI_CHECK_NULL);
667 return JVMCIENV->get_jobject(result);
668 C2V_END
669
670 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror))
671 requireInHotSpot("lookupClass", JVMCI_CHECK_NULL);
672 if (mirror == nullptr) {
673 return nullptr;
674 }
675 JVMCIKlassHandle klass(THREAD);
676 klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
677 if (klass == nullptr) {
678 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported");
679 }
680 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
681 return JVMCIENV->get_jobject(result);
682 C2V_END
683
684 C2V_VMENTRY_NULL(jobject, lookupJClass, (JNIEnv* env, jobject, jlong jclass_value))
685 if (jclass_value == 0L) {
686 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass must not be zero");
687 }
688 jclass mirror = reinterpret_cast<jclass>(jclass_value);
689 // Since the jclass_value is passed as a jlong, we perform additional checks to prevent the caller from accidentally
690 // sending a value that is not a JNI handle.
691 if (JNIHandles::handle_type(thread, mirror) == JNIInvalidRefType) {
692 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass is not a valid JNI reference");
693 }
694 oop obj = JNIHandles::resolve(mirror);
695 if (!java_lang_Class::is_instance(obj)) {
696 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass must be a reference to the Class object");
697 }
698 JVMCIKlassHandle klass(THREAD, java_lang_Class::as_Klass(obj));
699 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
700 return JVMCIENV->get_jobject(result);
701 C2V_END
702
703 C2V_VMENTRY_NULL(jobject, getUncachedStringInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
704 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
705 constantTag tag = cp->tag_at(index);
706 if (!tag.is_string()) {
707 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
708 }
709 oop obj = cp->uncached_string_at(index, CHECK_NULL);
710 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
711 C2V_END
712
713 C2V_VMENTRY_NULL(jobject, lookupConstantInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint cp_index, bool resolve))
714 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
715 oop obj;
716 if (!resolve) {
717 bool found_it;
718 obj = cp->find_cached_constant_at(cp_index, found_it, CHECK_NULL);
719 if (!found_it) {
720 return nullptr;
721 }
722 } else {
723 obj = cp->resolve_possibly_cached_constant_at(cp_index, CHECK_NULL);
724 }
725 constantTag tag = cp->tag_at(cp_index);
726 if (tag.is_dynamic_constant()) {
727 if (obj == nullptr) {
728 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
729 }
730 BasicType bt = Signature::basic_type(cp->uncached_signature_ref_at(cp_index));
731 if (!is_reference_type(bt)) {
732 if (!is_java_primitive(bt)) {
733 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
734 }
735
736 // Convert standard box (e.g. java.lang.Integer) to JVMCI box (e.g. jdk.vm.ci.meta.PrimitiveConstant)
737 jvalue value;
738 jlong raw_value;
739 jchar type_char;
740 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
741 assert(bt2 == bt, "");
742 switch (bt2) {
743 case T_LONG: type_char = 'J'; raw_value = value.j; break;
744 case T_DOUBLE: type_char = 'D'; raw_value = value.j; break;
745 case T_FLOAT: type_char = 'F'; raw_value = value.i; break;
746 case T_INT: type_char = 'I'; raw_value = value.i; break;
747 case T_SHORT: type_char = 'S'; raw_value = value.s; break;
748 case T_BYTE: type_char = 'B'; raw_value = value.b; break;
749 case T_CHAR: type_char = 'C'; raw_value = value.c; break;
750 case T_BOOLEAN: type_char = 'Z'; raw_value = value.z; break;
751 default: return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
752 }
753
754 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, raw_value, JVMCI_CHECK_NULL);
755 return JVMCIENV->get_jobject(result);
756 }
757 }
758 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
759 C2V_END
760
761 C2V_VMENTRY_NULL(jobjectArray, resolveBootstrapMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
762 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
763 constantTag tag = cp->tag_at(index);
764 bool is_indy = tag.is_invoke_dynamic();
765 bool is_condy = tag.is_dynamic_constant();
766 if (!(is_condy || is_indy)) {
767 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
768 }
769 // Get the indy entry based on CP index
770 int indy_index = -1;
771 if (is_indy) {
772 for (int i = 0; i < cp->resolved_indy_entries_length(); i++) {
773 if (cp->resolved_indy_entry_at(i)->constant_pool_index() == index) {
774 indy_index = i;
775 }
776 }
777 }
778 // Resolve the bootstrap specifier, its name, type, and static arguments
779 BootstrapInfo bootstrap_specifier(cp, index, indy_index);
780 Handle bsm = bootstrap_specifier.resolve_bsm(CHECK_NULL);
781
782 // call java.lang.invoke.MethodHandle::asFixedArity() -> MethodHandle
783 // to get a DirectMethodHandle from which we can then extract a Method*
784 JavaValue result(T_OBJECT);
785 JavaCalls::call_virtual(&result,
786 bsm,
787 vmClasses::MethodHandle_klass(),
788 vmSymbols::asFixedArity_name(),
789 vmSymbols::asFixedArity_signature(),
790 CHECK_NULL);
791 bsm = Handle(THREAD, result.get_oop());
792
793 // Check assumption about getting a DirectMethodHandle
794 if (!java_lang_invoke_DirectMethodHandle::is_instance(bsm())) {
795 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Unexpected MethodHandle subclass: %s", bsm->klass()->external_name()));
796 }
797 // Create return array describing the bootstrap method invocation (BSMI)
798 JVMCIObjectArray bsmi = JVMCIENV->new_Object_array(4, JVMCI_CHECK_NULL);
799
800 // Extract Method* and wrap it in a ResolvedJavaMethod
801 Handle member = Handle(THREAD, java_lang_invoke_DirectMethodHandle::member(bsm()));
802 JVMCIObject bsmi_method = JVMCIENV->get_jvmci_method(methodHandle(THREAD, java_lang_invoke_MemberName::vmtarget(member())), JVMCI_CHECK_NULL);
803 JVMCIENV->put_object_at(bsmi, 0, bsmi_method);
804
805 JVMCIObject bsmi_name = JVMCIENV->create_string(bootstrap_specifier.name(), JVMCI_CHECK_NULL);
806 JVMCIENV->put_object_at(bsmi, 1, bsmi_name);
807
808 Handle type_arg = bootstrap_specifier.type_arg();
809 JVMCIObject bsmi_type = JVMCIENV->get_object_constant(type_arg());
810 JVMCIENV->put_object_at(bsmi, 2, bsmi_type);
811
812 Handle arg_values = bootstrap_specifier.arg_values();
813 if (arg_values.not_null()) {
814 if (!arg_values->is_array()) {
815 JVMCIENV->put_object_at(bsmi, 3, JVMCIENV->get_object_constant(arg_values()));
816 } else if (arg_values->is_objArray()) {
817 objArrayHandle args_array = objArrayHandle(THREAD, (objArrayOop) arg_values());
818 int len = args_array->length();
819 JVMCIObjectArray arguments = JVMCIENV->new_JavaConstant_array(len, JVMCI_CHECK_NULL);
820 JVMCIENV->put_object_at(bsmi, 3, arguments);
821 for (int i = 0; i < len; i++) {
822 oop x = args_array->obj_at(i);
823 if (x != nullptr) {
824 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_object_constant(x));
825 } else {
826 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_JavaConstant_NULL_POINTER());
827 }
828 }
829 } else if (arg_values->is_typeArray()) {
830 typeArrayHandle bsci = typeArrayHandle(THREAD, (typeArrayOop) arg_values());
831 JVMCIPrimitiveArray arguments = JVMCIENV->new_intArray(bsci->length(), JVMCI_CHECK_NULL);
832 JVMCIENV->put_object_at(bsmi, 3, arguments);
833 for (int i = 0; i < bsci->length(); i++) {
834 JVMCIENV->put_int_at(arguments, i, bsci->int_at(i));
835 }
836 }
837 }
838 return JVMCIENV->get_jobjectArray(bsmi);
839 C2V_END
840
841 C2V_VMENTRY_0(jint, bootstrapArgumentIndexAt, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint cpi, jint index))
842 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
843 return cp->bootstrap_argument_index_at(cpi, index);
844 C2V_END
845
846 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode))
847 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
848 return cp->name_and_type_ref_index_at(index, (Bytecodes::Code)opcode);
849 C2V_END
850
851 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode))
852 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
853 JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which, (Bytecodes::Code)opcode), JVMCI_CHECK_NULL);
854 return JVMCIENV->get_jobject(sym);
855 C2V_END
856
857 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode))
858 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
859 JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which, (Bytecodes::Code)opcode), JVMCI_CHECK_NULL);
860 return JVMCIENV->get_jobject(sym);
861 C2V_END
862
863 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode))
864 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
865 return cp->klass_ref_index_at(index, (Bytecodes::Code)opcode);
866 C2V_END
867
868 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
869 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
870 Klass* klass = cp->klass_at(index, CHECK_NULL);
871 JVMCIKlassHandle resolved_klass(THREAD, klass);
872 if (resolved_klass->is_instance_klass()) {
873 InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL);
874 if (!InstanceKlass::cast(resolved_klass())->is_linked()) {
875 // link_class() should not return here if there is an issue.
876 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name()));
877 }
878 }
879 JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
880 return JVMCIENV->get_jobject(klassObject);
881 C2V_END
882
883 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
884 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
885 Klass* loading_klass = cp->pool_holder();
886 bool is_accessible = false;
887 JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass));
888 Symbol* symbol = nullptr;
889 if (klass.is_null()) {
890 constantTag tag = cp->tag_at(index);
891 if (tag.is_klass()) {
892 // The klass has been inserted into the constant pool
893 // very recently.
894 klass = cp->resolved_klass_at(index);
895 } else if (tag.is_symbol()) {
896 symbol = cp->symbol_at(index);
897 } else {
898 assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag");
899 symbol = cp->klass_name_at(index);
900 }
901 }
902 JVMCIObject result;
903 if (!klass.is_null()) {
904 result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
905 } else {
906 result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL);
907 }
908 return JVMCIENV->get_jobject(result);
909 C2V_END
910
911 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which))
912 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
913 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, which);
914 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop));
915 C2V_END
916
917 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jbyte opcode, ARGUMENT_PAIR(caller)))
918 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
919 methodHandle caller(THREAD, UNPACK_PAIR(Method, caller));
920 InstanceKlass* pool_holder = cp->pool_holder();
921 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
922 methodHandle method(THREAD, JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder));
923 JFR_ONLY(if (method.not_null()) Jfr::on_resolution(caller(), method(), CHECK_NULL);)
924 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
925 return JVMCIENV->get_jobject(result);
926 C2V_END
927
928 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, ARGUMENT_PAIR(method), jbyte opcode, jintArray info_handle))
929 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
930 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
931 fieldDescriptor fd;
932 methodHandle mh(THREAD, UNPACK_PAIR(Method, method));
933
934 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
935 int holder_index = cp->klass_ref_index_at(index, bc);
936 if (!cp->tag_at(holder_index).is_klass() && !THREAD->can_call_java()) {
937 // If the holder is not resolved in the constant pool and the current
938 // thread cannot call Java, return null. This avoids a Java call
939 // in LinkInfo to load the holder.
940 Symbol* klass_name = cp->klass_ref_at_noresolve(index, bc);
941 return nullptr;
942 }
943
944 LinkInfo link_info(cp, index, mh, code, CHECK_NULL);
945 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_NULL);
946 JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle);
947 if (info.is_null() || JVMCIENV->get_length(info) != 4) {
948 JVMCI_ERROR_NULL("info must not be null and have a length of 4");
949 }
950 JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int());
951 JVMCIENV->put_int_at(info, 1, fd.offset());
952 JVMCIENV->put_int_at(info, 2, fd.index());
953 JVMCIENV->put_int_at(info, 3, fd.field_flags().as_uint());
954 JVMCIKlassHandle handle(THREAD, fd.field_holder());
955 JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
956 return JVMCIENV->get_jobject(field_holder);
957 C2V_END
958
959 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method)))
960 Klass* klass = UNPACK_PAIR(Klass, klass);
961 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
962 InstanceKlass* holder = method->method_holder();
963 if (klass->is_interface()) {
964 JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name()));
965 }
966 if (!holder->is_interface()) {
967 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()));
968 }
969 if (!klass->is_instance_klass()) {
970 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
971 }
972 if (!InstanceKlass::cast(klass)->is_linked()) {
973 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name()));
974 }
975 if (!klass->is_subtype_of(holder)) {
976 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s does not implement interface %s", klass->external_name(), holder->external_name()));
977 }
978 return LinkResolver::vtable_index_of_interface_method(klass, method);
979 C2V_END
980
981 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(receiver), ARGUMENT_PAIR(method), ARGUMENT_PAIR(caller)))
982 Klass* recv_klass = UNPACK_PAIR(Klass, receiver);
983 Klass* caller_klass = UNPACK_PAIR(Klass, caller);
984 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
985
986 Klass* resolved = method->method_holder();
987 Symbol* h_name = method->name();
988 Symbol* h_signature = method->signature();
989
990 if (MethodHandles::is_signature_polymorphic_method(method())) {
991 // Signature polymorphic methods are already resolved, JVMCI just returns null in this case.
992 return nullptr;
993 }
994
995 if (method->name() == vmSymbols::clone_name() &&
996 resolved == vmClasses::Object_klass() &&
997 recv_klass->is_array_klass()) {
998 // Resolution of the clone method on arrays always returns Object.clone even though that method
999 // has protected access. There's some trickery in the access checking to make this all work out
1000 // so it's necessary to pass in the array class as the resolved class to properly trigger this.
1001 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See
1002 // LinkResolver::check_method_accessability for the matching logic.
1003 resolved = recv_klass;
1004 }
1005
1006 LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
1007 Method* m = nullptr;
1008 // Only do exact lookup if receiver klass has been linked. Otherwise,
1009 // the vtable has not been setup, and the LinkResolver will fail.
1010 if (recv_klass->is_array_klass() ||
1011 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
1012 if (resolved->is_interface()) {
1013 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
1014 } else {
1015 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
1016 }
1017 }
1018
1019 if (m == nullptr) {
1020 // Return null if there was a problem with lookup (uninitialized class, etc.)
1021 return nullptr;
1022 }
1023
1024 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, m), JVMCI_CHECK_NULL);
1025 return JVMCIENV->get_jobject(result);
1026 C2V_END
1027
1028 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1029 Klass* klass = UNPACK_PAIR(Klass, klass);
1030 assert(klass != nullptr, "method must not be called for primitive types");
1031 if (!klass->is_instance_klass()) {
1032 return false;
1033 }
1034 InstanceKlass* iklass = InstanceKlass::cast(klass);
1035 return Dependencies::find_finalizable_subclass(iklass) != nullptr;
1036 C2V_END
1037
1038 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1039 Klass* klass = UNPACK_PAIR(Klass, klass);
1040 if (!klass->is_instance_klass()) {
1041 return nullptr;
1042 }
1043 InstanceKlass* iklass = InstanceKlass::cast(klass);
1044 methodHandle clinit(THREAD, iklass->class_initializer());
1045 JVMCIObject result = JVMCIENV->get_jvmci_method(clinit, JVMCI_CHECK_NULL);
1046 return JVMCIENV->get_jobject(result);
1047 C2V_END
1048
1049 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr))
1050 address target_addr = (address) addr;
1051 if (target_addr != 0x0) {
1052 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
1053 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
1054 return MAX2(ABS(off_low), ABS(off_high));
1055 }
1056 return -1;
1057 C2V_END
1058
1059 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1060 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1061 method->set_is_not_c1_compilable();
1062 method->set_is_not_c2_compilable();
1063 method->set_dont_inline(true);
1064 C2V_END
1065
1066 C2V_VMENTRY_0(jint, getInstallCodeFlags, (JNIEnv *env, jobject))
1067 int flags = 0;
1068 #ifndef PRODUCT
1069 flags |= 0x0001; // VM will install block comments
1070 flags |= 0x0004; // Enable HotSpotJVMCIRuntime.Option.CodeSerializationTypeInfo if not explicitly set
1071 #endif
1072 if (JvmtiExport::can_hotswap_or_post_breakpoint()) {
1073 // VM needs to track method dependencies
1074 flags |= 0x0002;
1075 }
1076 return flags;
1077 C2V_END
1078
1079 C2V_VMENTRY_0(jint, installCode0, (JNIEnv *env, jobject,
1080 jlong compiled_code_buffer,
1081 jlong serialization_ns,
1082 bool with_type_info,
1083 jobject compiled_code,
1084 jobjectArray object_pool,
1085 jobject installed_code,
1086 jlong failed_speculations_address,
1087 jbyteArray speculations_obj))
1088 HandleMark hm(THREAD);
1089 JNIHandleMark jni_hm(thread);
1090
1091 JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
1092 objArrayHandle object_pool_handle(thread, JVMCIENV->is_hotspot() ? (objArrayOop) JNIHandles::resolve(object_pool) : nullptr);
1093
1094 CodeBlob* cb = nullptr;
1095 JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code);
1096 JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj);
1097
1098 int speculations_len = JVMCIENV->get_length(speculations_handle);
1099 char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len);
1100 JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len);
1101
1102 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR);
1103 JVMCICompiler::CodeInstallStats* stats = compiler->code_install_stats(!thread->is_Compiler_thread());
1104 elapsedTimer *timer = stats->timer();
1105 timer->add_nanoseconds(serialization_ns);
1106 TraceTime install_time("installCode", timer);
1107
1108 CodeInstaller installer(JVMCIENV);
1109
1110 JVMCI::CodeInstallResult result = installer.install(compiler,
1111 compiled_code_buffer,
1112 with_type_info,
1113 compiled_code_handle,
1114 object_pool_handle,
1115 cb,
1116 installed_code_handle,
1117 (FailedSpeculation**)(address) failed_speculations_address,
1118 speculations,
1119 speculations_len,
1120 JVMCI_CHECK_0);
1121
1122 if (PrintCodeCacheOnCompilation) {
1123 stringStream s;
1124 // Dump code cache into a buffer before locking the tty,
1125 {
1126 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
1127 CodeCache::print_summary(&s, false);
1128 }
1129 ttyLocker ttyl;
1130 tty->print_raw_cr(s.freeze());
1131 }
1132
1133 if (result != JVMCI::ok) {
1134 assert(cb == nullptr, "should be");
1135 } else {
1136 stats->on_install(cb);
1137 if (installed_code_handle.is_non_null()) {
1138 if (cb->is_nmethod()) {
1139 assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type");
1140 // Clear the link to an old nmethod first
1141 JVMCIObject nmethod_mirror = installed_code_handle;
1142 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, true, JVMCI_CHECK_0);
1143 } else {
1144 assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type");
1145 }
1146 // Initialize the link to the new code blob
1147 JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0);
1148 }
1149 }
1150 return result;
1151 C2V_END
1152
1153 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject))
1154 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK);
1155 CompilerStatistics* stats = compiler->stats();
1156 stats->_standard.reset();
1157 stats->_osr.reset();
1158 C2V_END
1159
1160 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode))
1161 HandleMark hm(THREAD);
1162
1163 if (installedCode == nullptr) {
1164 JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null");
1165 }
1166
1167 JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode);
1168 CodeBlob* cb = JVMCIENV->get_code_blob(installedCodeObject);
1169 if (cb == nullptr) {
1170 return nullptr;
1171 }
1172
1173 // We don't want the stringStream buffer to resize during disassembly as it
1174 // uses scoped resource memory. If a nested function called during disassembly uses
1175 // a ResourceMark and the buffer expands within the scope of the mark,
1176 // the buffer becomes garbage when that scope is exited. Experience shows that
1177 // the disassembled code is typically about 10x the code size so a fixed buffer
1178 // sized to 20x code size plus a fixed amount for header info should be sufficient.
1179 int bufferSize = cb->code_size() * 20 + 1024;
1180 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
1181 stringStream st(buffer, bufferSize);
1182 Disassembler::decode(cb, &st);
1183 if (st.size() <= 0) {
1184 return nullptr;
1185 }
1186
1187 JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL);
1188 return JVMCIENV->get_jobject(result);
1189 C2V_END
1190
1191 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int bci))
1192 HandleMark hm(THREAD);
1193
1194 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1195 JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL);
1196 return JVMCIENV->get_jobject(element);
1197 C2V_END
1198
1199 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod))
1200 // The incoming arguments array would have to contain JavaConstants instead of regular objects
1201 // and the return value would have to be wrapped as a JavaConstant.
1202 requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL);
1203
1204 HandleMark hm(THREAD);
1205
1206 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1207 nmethod* nm = JVMCIENV->get_nmethod(nmethod_mirror);
1208 if (nm == nullptr || !nm->is_in_use()) {
1209 JVMCI_THROW_NULL(InvalidInstalledCodeException);
1210 }
1211 methodHandle mh(THREAD, nm->method());
1212 Symbol* signature = mh->signature();
1213 JavaCallArguments jca(mh->size_of_parameters());
1214
1215 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
1216 JavaValue result(jap.return_type());
1217 jca.set_alternative_target(Handle(THREAD, JNIHandles::resolve(nmethod_mirror.as_jobject())));
1218 JavaCalls::call(&result, mh, &jca, CHECK_NULL);
1219
1220 if (jap.return_type() == T_VOID) {
1221 return nullptr;
1222 } else if (is_reference_type(jap.return_type())) {
1223 return JNIHandles::make_local(THREAD, result.get_oop());
1224 } else {
1225 jvalue *value = (jvalue *) result.get_value_addr();
1226 // Narrow the value down if required (Important on big endian machines)
1227 switch (jap.return_type()) {
1228 case T_BOOLEAN:
1229 value->z = (jboolean) value->i;
1230 break;
1231 case T_BYTE:
1232 value->b = (jbyte) value->i;
1233 break;
1234 case T_CHAR:
1235 value->c = (jchar) value->i;
1236 break;
1237 case T_SHORT:
1238 value->s = (jshort) value->i;
1239 break;
1240 default:
1241 break;
1242 }
1243 JVMCIObject o = JVMCIENV->create_box(jap.return_type(), value, JVMCI_CHECK_NULL);
1244 return JVMCIENV->get_jobject(o);
1245 }
1246 C2V_END
1247
1248 C2V_VMENTRY_NULL(jlongArray, getLineNumberTable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1249 Method* method = UNPACK_PAIR(Method, method);
1250 if (!method->has_linenumber_table()) {
1251 return nullptr;
1252 }
1253 u2 num_entries = 0;
1254 CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
1255 while (streamForSize.read_pair()) {
1256 num_entries++;
1257 }
1258
1259 CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
1260 JVMCIPrimitiveArray result = JVMCIENV->new_longArray(2 * num_entries, JVMCI_CHECK_NULL);
1261
1262 int i = 0;
1263 jlong value;
1264 while (stream.read_pair()) {
1265 value = ((jlong) stream.bci());
1266 JVMCIENV->put_long_at(result, i, value);
1267 value = ((jlong) stream.line());
1268 JVMCIENV->put_long_at(result, i + 1, value);
1269 i += 2;
1270 }
1271
1272 return (jlongArray) JVMCIENV->get_jobject(result);
1273 C2V_END
1274
1275 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1276 Method* method = UNPACK_PAIR(Method, method);
1277 if (!method->has_localvariable_table()) {
1278 return 0;
1279 }
1280 return (jlong) (address) method->localvariable_table_start();
1281 C2V_END
1282
1283 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1284 Method* method = UNPACK_PAIR(Method, method);
1285 return method->localvariable_table_length();
1286 C2V_END
1287
1288 static MethodData* get_profiling_method_data(const methodHandle& method, TRAPS) {
1289 MethodData* method_data = method->method_data();
1290 if (method_data == nullptr) {
1291 method->build_profiling_method_data(method, CHECK_NULL);
1292 method_data = method->method_data();
1293 if (method_data == nullptr) {
1294 THROW_MSG_NULL(vmSymbols::java_lang_OutOfMemoryError(), "cannot allocate MethodData")
1295 }
1296 }
1297 return method_data;
1298 }
1299
1300 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1301 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1302 MethodCounters* mcs = method->method_counters();
1303 if (mcs != nullptr) {
1304 mcs->clear_counters();
1305 }
1306 NOT_PRODUCT(method->set_compiled_invocation_count(0));
1307
1308 CompiledMethod* code = method->code();
1309 if (code != nullptr) {
1310 code->make_not_entrant();
1311 }
1312
1313 MethodData* method_data = method->method_data();
1314 if (method_data == nullptr) {
1315 method_data = get_profiling_method_data(method, CHECK);
1316 } else {
1317 method_data->initialize();
1318 }
1319 C2V_END
1320
1321
1322 C2V_VMENTRY(void, invalidateHotSpotNmethod, (JNIEnv* env, jobject, jobject hs_nmethod, jboolean deoptimize))
1323 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1324 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, deoptimize, JVMCI_CHECK);
1325 C2V_END
1326
1327 C2V_VMENTRY_NULL(jlongArray, collectCounters, (JNIEnv* env, jobject))
1328 // Returns a zero length array if counters aren't enabled
1329 JVMCIPrimitiveArray array = JVMCIENV->new_longArray(JVMCICounterSize, JVMCI_CHECK_NULL);
1330 if (JVMCICounterSize > 0) {
1331 jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize);
1332 JavaThread::collect_counters(temp_array, JVMCICounterSize);
1333 JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize);
1334 }
1335 return (jlongArray) JVMCIENV->get_jobject(array);
1336 C2V_END
1337
1338 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject))
1339 return (jint) JVMCICounterSize;
1340 C2V_END
1341
1342 C2V_VMENTRY_0(jboolean, setCountersSize, (JNIEnv* env, jobject, jint new_size))
1343 return JavaThread::resize_all_jvmci_counters(new_size);
1344 C2V_END
1345
1346 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int entry_bci))
1347 HandleMark hm(THREAD);
1348 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1349 if (method.is_null()) {
1350 JVMCI_THROW_0(NullPointerException);
1351 }
1352 if (entry_bci >= method->code_size() || entry_bci < -1) {
1353 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci));
1354 }
1355 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
1356 C2V_END
1357
1358
1359 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong method_data_pointer))
1360 MethodData* mdo = (MethodData*) method_data_pointer;
1361 return mdo != nullptr && mdo->is_mature();
1362 C2V_END
1363
1364 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int entry_bci, int comp_level))
1365 Method* method = UNPACK_PAIR(Method, method);
1366 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != nullptr;
1367 C2V_END
1368
1369 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol))
1370 JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL);
1371 return JVMCIENV->get_jobject(sym);
1372 C2V_END
1373
1374 C2V_VMENTRY_NULL(jobject, getSignatureName, (JNIEnv* env, jobject, jlong klass_pointer))
1375 Klass* klass = UNPACK_PAIR(Klass, klass);
1376 JVMCIObject signature = JVMCIENV->create_string(klass->signature_name(), JVMCI_CHECK_NULL);
1377 return JVMCIENV->get_jobject(signature);
1378 C2V_END
1379
1380 /*
1381 * Used by matches() to convert a ResolvedJavaMethod[] to an array of Method*.
1382 */
1383 static GrowableArray<Method*>* init_resolved_methods(jobjectArray methods, JVMCIEnv* JVMCIENV) {
1384 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1385 GrowableArray<Method*>* resolved_methods = new GrowableArray<Method*>(methods_oop->length());
1386 for (int i = 0; i < methods_oop->length(); i++) {
1387 oop resolved = methods_oop->obj_at(i);
1388 Method* resolved_method = nullptr;
1389 if (resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) {
1390 resolved_method = HotSpotJVMCI::asMethod(JVMCIENV, resolved);
1391 }
1392 resolved_methods->append(resolved_method);
1393 }
1394 return resolved_methods;
1395 }
1396
1397 /*
1398 * Used by c2v_iterateFrames to check if `method` matches one of the ResolvedJavaMethods in the `methods` array.
1399 * The ResolvedJavaMethod[] array is converted to a Method* array that is then cached in the resolved_methods_ref in/out parameter.
1400 * In case of a match, the matching ResolvedJavaMethod is returned in matched_jvmci_method_ref.
1401 */
1402 static bool matches(jobjectArray methods, Method* method, GrowableArray<Method*>** resolved_methods_ref, Handle* matched_jvmci_method_ref, Thread* THREAD, JVMCIEnv* JVMCIENV) {
1403 GrowableArray<Method*>* resolved_methods = *resolved_methods_ref;
1404 if (resolved_methods == nullptr) {
1405 resolved_methods = init_resolved_methods(methods, JVMCIENV);
1406 *resolved_methods_ref = resolved_methods;
1407 }
1408 assert(method != nullptr, "method should not be null");
1409 assert(resolved_methods->length() == ((objArrayOop) JNIHandles::resolve(methods))->length(), "arrays must have the same length");
1410 for (int i = 0; i < resolved_methods->length(); i++) {
1411 Method* m = resolved_methods->at(i);
1412 if (m == method) {
1413 *matched_jvmci_method_ref = Handle(THREAD, ((objArrayOop) JNIHandles::resolve(methods))->obj_at(i));
1414 return true;
1415 }
1416 }
1417 return false;
1418 }
1419
1420 /*
1421 * Resolves an interface call to a concrete method handle.
1422 */
1423 static methodHandle resolve_interface_call(Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
1424 CallInfo callinfo;
1425 Handle receiver = args->receiver();
1426 Klass* recvrKlass = receiver.is_null() ? (Klass*)nullptr : receiver->klass();
1427 LinkInfo link_info(spec_klass, name, signature);
1428 LinkResolver::resolve_interface_call(
1429 callinfo, receiver, recvrKlass, link_info, true, CHECK_(methodHandle()));
1430 methodHandle method(THREAD, callinfo.selected_method());
1431 assert(method.not_null(), "should have thrown exception");
1432 return method;
1433 }
1434
1435 /*
1436 * Used by c2v_iterateFrames to make a new vframeStream at the given compiled frame id (stack pointer) and vframe id.
1437 */
1438 static void resync_vframestream_to_compiled_frame(vframeStream& vfst, intptr_t* stack_pointer, int vframe_id, JavaThread* thread, TRAPS) {
1439 vfst = vframeStream(thread);
1440 while (vfst.frame_id() != stack_pointer && !vfst.at_end()) {
1441 vfst.next();
1442 }
1443 if (vfst.frame_id() != stack_pointer) {
1444 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1445 }
1446 if (vfst.is_interpreted_frame()) {
1447 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1448 }
1449 while (vfst.vframe_id() != vframe_id) {
1450 if (vfst.at_end()) {
1451 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt")
1452 }
1453 vfst.next();
1454 assert(!vfst.is_interpreted_frame(), "Wrong frame type");
1455 }
1456 }
1457
1458 /*
1459 * Used by c2v_iterateFrames. Returns an array of any unallocated scope objects or null if none.
1460 */
1461 static GrowableArray<ScopeValue*>* get_unallocated_objects_or_null(GrowableArray<ScopeValue*>* scope_objects) {
1462 GrowableArray<ScopeValue*>* unallocated = nullptr;
1463 for (int i = 0; i < scope_objects->length(); i++) {
1464 ObjectValue* sv = (ObjectValue*) scope_objects->at(i);
1465 if (sv->value().is_null()) {
1466 if (unallocated == nullptr) {
1467 unallocated = new GrowableArray<ScopeValue*>(scope_objects->length());
1468 }
1469 unallocated->append(sv);
1470 }
1471 }
1472 return unallocated;
1473 }
1474
1475 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
1476
1477 if (!thread->has_last_Java_frame()) {
1478 return nullptr;
1479 }
1480 Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
1481
1482 requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL);
1483
1484 HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1485
1486 vframeStream vfst(thread);
1487 jobjectArray methods = initial_methods;
1488 methodHandle visitor_method;
1489 GrowableArray<Method*>* resolved_methods = nullptr;
1490
1491 while (!vfst.at_end()) { // frame loop
1492 bool realloc_called = false;
1493 intptr_t* frame_id = vfst.frame_id();
1494
1495 // Previous compiledVFrame of this frame; use with at_scope() to reuse scope object pool.
1496 compiledVFrame* prev_cvf = nullptr;
1497
1498 for (; !vfst.at_end() && vfst.frame_id() == frame_id; vfst.next()) { // vframe loop
1499 int frame_number = 0;
1500 Method *method = vfst.method();
1501 int bci = vfst.bci();
1502
1503 Handle matched_jvmci_method;
1504 if (methods == nullptr || matches(methods, method, &resolved_methods, &matched_jvmci_method, THREAD, JVMCIENV)) {
1505 if (initialSkip > 0) {
1506 initialSkip--;
1507 continue;
1508 }
1509 javaVFrame* vf;
1510 if (prev_cvf != nullptr && prev_cvf->frame_pointer()->id() == frame_id) {
1511 assert(prev_cvf->is_compiled_frame(), "expected compiled Java frame");
1512 vf = prev_cvf->at_scope(vfst.decode_offset(), vfst.vframe_id());
1513 } else {
1514 vf = vfst.asJavaVFrame();
1515 }
1516
1517 StackValueCollection* locals = nullptr;
1518 typeArrayHandle localIsVirtual_h;
1519 if (vf->is_compiled_frame()) {
1520 // compiled method frame
1521 compiledVFrame* cvf = compiledVFrame::cast(vf);
1522
1523 ScopeDesc* scope = cvf->scope();
1524 // native wrappers do not have a scope
1525 if (scope != nullptr && scope->objects() != nullptr) {
1526 prev_cvf = cvf;
1527
1528 GrowableArray<ScopeValue*>* objects = nullptr;
1529 if (!realloc_called) {
1530 objects = scope->objects();
1531 } else {
1532 // some object might already have been re-allocated, only reallocate the non-allocated ones
1533 objects = get_unallocated_objects_or_null(scope->objects());
1534 }
1535
1536 if (objects != nullptr) {
1537 RegisterMap reg_map(vf->register_map());
1538 bool realloc_failures = Deoptimization::realloc_objects(thread, vf->frame_pointer(), ®_map, objects, CHECK_NULL);
1539 Deoptimization::reassign_fields(vf->frame_pointer(), ®_map, objects, realloc_failures, false);
1540 realloc_called = true;
1541 }
1542
1543 GrowableArray<ScopeValue*>* local_values = scope->locals();
1544 for (int i = 0; i < local_values->length(); i++) {
1545 ScopeValue* value = local_values->at(i);
1546 assert(!value->is_object_merge(), "Should not be.");
1547 if (value->is_object()) {
1548 if (localIsVirtual_h.is_null()) {
1549 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1550 localIsVirtual_h = typeArrayHandle(THREAD, array_oop);
1551 }
1552 localIsVirtual_h->bool_at_put(i, true);
1553 }
1554 }
1555 }
1556
1557 locals = cvf->locals();
1558 frame_number = cvf->vframe_id();
1559 } else {
1560 // interpreted method frame
1561 interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1562
1563 locals = ivf->locals();
1564 }
1565 assert(bci == vf->bci(), "wrong bci");
1566 assert(method == vf->method(), "wrong method");
1567
1568 Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1569 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), bci);
1570 if (matched_jvmci_method.is_null()) {
1571 methodHandle mh(THREAD, method);
1572 JVMCIObject jvmci_method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1573 matched_jvmci_method = Handle(THREAD, JNIHandles::resolve(jvmci_method.as_jobject()));
1574 }
1575 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), matched_jvmci_method());
1576 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), localIsVirtual_h());
1577
1578 HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM));
1579 HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) frame_id);
1580 HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number);
1581
1582 // initialize the locals array
1583 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1584 objArrayHandle array(THREAD, array_oop);
1585 for (int i = 0; i < locals->size(); i++) {
1586 StackValue* var = locals->at(i);
1587 if (var->type() == T_OBJECT) {
1588 array->obj_at_put(i, locals->at(i)->get_obj()());
1589 }
1590 }
1591 HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array());
1592 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE);
1593
1594 JavaValue result(T_OBJECT);
1595 JavaCallArguments args(visitor);
1596 if (visitor_method.is_null()) {
1597 visitor_method = resolve_interface_call(HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL);
1598 }
1599
1600 args.push_oop(frame_reference);
1601 JavaCalls::call(&result, visitor_method, &args, CHECK_NULL);
1602 if (result.get_oop() != nullptr) {
1603 return JNIHandles::make_local(thread, result.get_oop());
1604 }
1605 if (methods == initial_methods) {
1606 methods = match_methods;
1607 if (resolved_methods != nullptr && JNIHandles::resolve(match_methods) != JNIHandles::resolve(initial_methods)) {
1608 resolved_methods = nullptr;
1609 }
1610 }
1611 assert(initialSkip == 0, "There should be no match before initialSkip == 0");
1612 if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) {
1613 // the frame has been deoptimized, we need to re-synchronize the frame and vframe
1614 prev_cvf = nullptr;
1615 intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference());
1616 resync_vframestream_to_compiled_frame(vfst, stack_pointer, frame_number, thread, CHECK_NULL);
1617 }
1618 }
1619 } // end of vframe loop
1620 } // end of frame loop
1621
1622 // the end was reached without finding a matching method
1623 return nullptr;
1624 C2V_END
1625
1626 C2V_VMENTRY_0(int, decodeIndyIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint encoded_indy_index, jboolean resolve))
1627 if (!ConstantPool::is_invokedynamic_index(encoded_indy_index)) {
1628 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("not an encoded indy index %d", encoded_indy_index));
1629 }
1630
1631 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1632 CallInfo callInfo;
1633 int indy_index = cp->decode_invokedynamic_index(encoded_indy_index);
1634 if (resolve) {
1635 LinkResolver::resolve_invoke(callInfo, Handle(), cp, encoded_indy_index, Bytecodes::_invokedynamic, CHECK_0);
1636 cp->cache()->set_dynamic_call(callInfo, indy_index);
1637 }
1638 return cp->resolved_indy_entry_at(indy_index)->constant_pool_index();
1639 C2V_END
1640
1641 C2V_VMENTRY_0(int, decodeFieldIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint field_index))
1642 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1643 if (field_index < 0 || field_index >= cp->resolved_field_entries_length()) {
1644 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("invalid field index %d", field_index));
1645 }
1646 return cp->resolved_field_entry_at(field_index)->constant_pool_index();
1647 C2V_END
1648
1649 C2V_VMENTRY_0(int, decodeMethodIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint method_index))
1650 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1651 if (method_index < 0 || method_index >= cp->resolved_method_entries_length()) {
1652 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("invalid method index %d", method_index));
1653 }
1654 return cp->resolved_method_entry_at(method_index)->constant_pool_index();
1655 C2V_END
1656
1657 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
1658 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1659 Klass* holder = cp->klass_ref_at(index, Bytecodes::_invokehandle, CHECK);
1660 Symbol* name = cp->name_ref_at(index, Bytecodes::_invokehandle);
1661 if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1662 CallInfo callInfo;
1663 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1664 cp->cache()->set_method_handle(index, callInfo);
1665 }
1666 C2V_END
1667
1668 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
1669 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1670 ResolvedMethodEntry* entry = cp->cache()->resolved_method_entry_at(index);
1671 if (entry->is_resolved(Bytecodes::_invokehandle)) {
1672 // MethodHandle.invoke* --> LambdaForm?
1673 ResourceMark rm;
1674
1675 LinkInfo link_info(cp, index, Bytecodes::_invokehandle, CATCH);
1676
1677 Klass* resolved_klass = link_info.resolved_klass();
1678
1679 Symbol* name_sym = cp->name_ref_at(index, Bytecodes::_invokehandle);
1680
1681 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1682 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1683
1684 methodHandle adapter_method(THREAD, entry->method());
1685
1686 methodHandle resolved_method(adapter_method);
1687
1688 // Can we treat it as a regular invokevirtual?
1689 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1690 vmassert(!resolved_method->is_static(),"!");
1691 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1692 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1693 vmassert(cp->cache()->appendix_if_resolved(entry) == nullptr, "!");
1694
1695 methodHandle m(THREAD, LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1696 vmassert(m == resolved_method, "!!");
1697 return -1;
1698 }
1699
1700 return Bytecodes::_invokevirtual;
1701 }
1702 if (cp->is_invokedynamic_index(index)) {
1703 if (cp->resolved_indy_entry_at(cp->decode_invokedynamic_index(index))->is_resolved()) {
1704 return Bytecodes::_invokedynamic;
1705 }
1706 }
1707 return -1;
1708 C2V_END
1709
1710
1711 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject))
1712 JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL);
1713 JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL);
1714 JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL);
1715 JVMCIENV->put_object_at(holders, 0, mh);
1716 JVMCIENV->put_object_at(holders, 1, vh);
1717 return JVMCIENV->get_jobject(holders);
1718 C2V_END
1719
1720 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject))
1721 //see compute_recording_non_safepoints in debugInfroRec.cpp
1722 if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1723 return true;
1724 }
1725 return DebugNonSafepoints;
1726 C2V_END
1727
1728 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1729 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate))
1730 JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame);
1731 if (hs_frame.is_null()) {
1732 JVMCI_THROW_MSG(NullPointerException, "stack frame is null");
1733 }
1734
1735 requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK);
1736
1737 JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK);
1738
1739 // look for the given stack frame
1740 StackFrameStream fst(thread, false /* update */, true /* process_frames */);
1741 intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame);
1742 while (fst.current()->id() != stack_pointer && !fst.is_done()) {
1743 fst.next();
1744 }
1745 if (fst.current()->id() != stack_pointer) {
1746 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found");
1747 }
1748
1749 if (invalidate) {
1750 if (!fst.current()->is_compiled_frame()) {
1751 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1752 }
1753 assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
1754 ((nmethod*) fst.current()->cb())->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 nmethod* nm = JVMCIENV->get_nmethod(obj);
2767 if (nm != nullptr) {
2768 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2769 if (data != nullptr) {
2770 // Only the mirror in the HotSpot heap is accessible
2771 // through JVMCINMethodData
2772 oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true);
2773 if (nmethod_mirror != nullptr) {
2774 result = HotSpotJVMCI::wrap(nmethod_mirror);
2775 }
2776 }
2777 }
2778 }
2779
2780 if (result.is_null()) {
2781 JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj);
2782 methodHandle mh(THREAD, thisEnv->asMethod(methodObject));
2783 jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj);
2784 jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj);
2785 JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj);
2786 const char* cstring = name_string.is_null() ? nullptr : thisEnv->as_utf8_string(name_string);
2787 // Create a new HotSpotNmethod instance in the peer runtime
2788 result = PEER_JVMCIENV->new_HotSpotNmethod(mh, cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0);
2789 nmethod* nm = JVMCIENV->get_nmethod(obj);
2790 if (result.is_null()) {
2791 // exception occurred (e.g. OOME) creating a new HotSpotNmethod
2792 } else if (nm == nullptr) {
2793 // nmethod must have been unloaded
2794 } else {
2795 // Link the new HotSpotNmethod to the nmethod
2796 PEER_JVMCIENV->initialize_installed_code(result, nm, JVMCI_CHECK_0);
2797 // Only non-default HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime.
2798 if (!isDefault && PEER_JVMCIENV->is_hotspot()) {
2799 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2800 if (data == nullptr) {
2801 JVMCI_THROW_MSG_0(IllegalArgumentException, "Missing HotSpotNmethod data");
2802 }
2803 if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != nullptr) {
2804 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod");
2805 }
2806 oop nmethod_mirror = HotSpotJVMCI::resolve(result);
2807 data->set_nmethod_mirror(nm, nmethod_mirror);
2808 }
2809 }
2810 }
2811 } else {
2812 JVMCI_THROW_MSG_0(IllegalArgumentException,
2813 err_msg("Cannot translate object of type: %s", thisEnv->klass_name(obj)));
2814 }
2815 if (callPostTranslation) {
2816 PEER_JVMCIENV->call_HotSpotJVMCIRuntime_postTranslation(result, JVMCI_CHECK_0);
2817 }
2818 // Propagate any exception that occurred while creating the translated object
2819 if (PEER_JVMCIENV->transfer_pending_exception(thread, thisEnv)) {
2820 return 0L;
2821 }
2822 return (jlong) PEER_JVMCIENV->make_global(result).as_jobject();
2823 C2V_END
2824
2825 C2V_VMENTRY_NULL(jobject, unhand, (JNIEnv* env, jobject, jlong obj_handle))
2826 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2827 if (obj_handle == 0L) {
2828 return nullptr;
2829 }
2830 jobject global_handle = (jobject) obj_handle;
2831 JVMCIObject global_handle_obj = JVMCIENV->wrap(global_handle);
2832 jobject result = JVMCIENV->make_local(global_handle_obj).as_jobject();
2833
2834 JVMCIENV->destroy_global(global_handle_obj);
2835 return result;
2836 C2V_END
2837
2838 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle))
2839 JVMCIObject code = JVMCIENV->wrap(code_handle);
2840 // Execute this operation for the side effect of updating the InstalledCode state
2841 JVMCIENV->get_nmethod(code);
2842 C2V_END
2843
2844 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2845 JVMCIObject code = JVMCIENV->wrap(code_handle);
2846 CodeBlob* cb = JVMCIENV->get_code_blob(code);
2847 if (cb == nullptr) {
2848 return nullptr;
2849 }
2850 // Make a resource copy of code before the allocation causes a safepoint
2851 int code_size = cb->code_size();
2852 jbyte* code_bytes = NEW_RESOURCE_ARRAY(jbyte, code_size);
2853 memcpy(code_bytes, (jbyte*) cb->code_begin(), code_size);
2854
2855 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2856 JVMCIENV->copy_bytes_from(code_bytes, result, 0, code_size);
2857 return JVMCIENV->get_jbyteArray(result);
2858 C2V_END
2859
2860 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
2861 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2862 methodHandle m(THREAD, UNPACK_PAIR(Method, method));
2863 oop executable;
2864 if (m->is_initializer()) {
2865 if (m->is_static_initializer()) {
2866 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2867 "Cannot create java.lang.reflect.Method for class initializer");
2868 }
2869 executable = Reflection::new_constructor(m, CHECK_NULL);
2870 } else {
2871 executable = Reflection::new_method(m, false, CHECK_NULL);
2872 }
2873 return JNIHandles::make_local(THREAD, executable);
2874 C2V_END
2875
2876 static InstanceKlass* check_field(Klass* klass, jint index, JVMCI_TRAPS) {
2877 if (!klass->is_instance_klass()) {
2878 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2879 err_msg("Expected non-primitive type, got %s", klass->external_name()));
2880 }
2881 InstanceKlass* iklass = InstanceKlass::cast(klass);
2882 if (index < 0 || index > iklass->total_fields_count()) {
2883 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2884 err_msg("Field index %d out of bounds for %s", index, klass->external_name()));
2885 }
2886 return iklass;
2887 }
2888
2889 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index))
2890 requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL);
2891 Klass* klass = UNPACK_PAIR(Klass, klass);
2892 InstanceKlass* iklass = check_field(klass, index, JVMCIENV);
2893 fieldDescriptor fd(iklass, index);
2894 oop reflected = Reflection::new_field(&fd, CHECK_NULL);
2895 return JNIHandles::make_local(THREAD, reflected);
2896 C2V_END
2897
2898 static jbyteArray get_encoded_annotation_data(InstanceKlass* holder, AnnotationArray* annotations_array, bool for_class,
2899 jint filter_length, jlong filter_klass_pointers,
2900 JavaThread* THREAD, JVMCIEnv* JVMCIENV) {
2901 // Get a ConstantPool object for annotation parsing
2902 Handle jcp = reflect_ConstantPool::create(CHECK_NULL);
2903 reflect_ConstantPool::set_cp(jcp(), holder->constants());
2904
2905 // load VMSupport
2906 Symbol* klass = vmSymbols::jdk_internal_vm_VMSupport();
2907 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK_NULL);
2908
2909 InstanceKlass* vm_support = InstanceKlass::cast(k);
2910 if (vm_support->should_be_initialized()) {
2911 vm_support->initialize(CHECK_NULL);
2912 }
2913
2914 typeArrayOop annotations_oop = Annotations::make_java_array(annotations_array, CHECK_NULL);
2915 typeArrayHandle annotations = typeArrayHandle(THREAD, annotations_oop);
2916
2917 InstanceKlass** filter = filter_length == 1 ?
2918 (InstanceKlass**) &filter_klass_pointers:
2919 (InstanceKlass**) filter_klass_pointers;
2920 objArrayOop filter_oop = oopFactory::new_objArray(vmClasses::Class_klass(), filter_length, CHECK_NULL);
2921 objArrayHandle filter_classes(THREAD, filter_oop);
2922 for (int i = 0; i < filter_length; i++) {
2923 filter_classes->obj_at_put(i, filter[i]->java_mirror());
2924 }
2925
2926 // invoke VMSupport.encodeAnnotations
2927 JavaValue result(T_OBJECT);
2928 JavaCallArguments args;
2929 args.push_oop(annotations);
2930 args.push_oop(Handle(THREAD, holder->java_mirror()));
2931 args.push_oop(jcp);
2932 args.push_int(for_class);
2933 args.push_oop(filter_classes);
2934 Symbol* signature = vmSymbols::encodeAnnotations_signature();
2935 JavaCalls::call_static(&result,
2936 vm_support,
2937 vmSymbols::encodeAnnotations_name(),
2938 signature,
2939 &args,
2940 CHECK_NULL);
2941
2942 oop res = result.get_oop();
2943 if (JVMCIENV->is_hotspot()) {
2944 return (jbyteArray) JNIHandles::make_local(THREAD, res);
2945 }
2946
2947 typeArrayOop ba = typeArrayOop(res);
2948 int ba_len = ba->length();
2949 jbyte* ba_buf = NEW_RESOURCE_ARRAY_IN_THREAD_RETURN_NULL(THREAD, jbyte, ba_len);
2950 if (ba_buf == nullptr) {
2951 JVMCI_THROW_MSG_NULL(InternalError,
2952 err_msg("could not allocate %d bytes", ba_len));
2953
2954 }
2955 memcpy(ba_buf, ba->byte_at_addr(0), ba_len);
2956 JVMCIPrimitiveArray ba_dest = JVMCIENV->new_byteArray(ba_len, JVMCI_CHECK_NULL);
2957 JVMCIENV->copy_bytes_from(ba_buf, ba_dest, 0, ba_len);
2958 return JVMCIENV->get_jbyteArray(ba_dest);
2959 }
2960
2961 C2V_VMENTRY_NULL(jbyteArray, getEncodedClassAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass),
2962 jobject filter, jint filter_length, jlong filter_klass_pointers))
2963 CompilerThreadCanCallJava canCallJava(thread, true); // Requires Java support
2964 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass));
2965 return get_encoded_annotation_data(holder, holder->class_annotations(), true, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2966 C2V_END
2967
2968 C2V_VMENTRY_NULL(jbyteArray, getEncodedExecutableAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(method),
2969 jobject filter, jint filter_length, jlong filter_klass_pointers))
2970 CompilerThreadCanCallJava canCallJava(thread, true); // Requires Java support
2971 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
2972 return get_encoded_annotation_data(method->method_holder(), method->annotations(), false, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2973 C2V_END
2974
2975 C2V_VMENTRY_NULL(jbyteArray, getEncodedFieldAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index,
2976 jobject filter, jint filter_length, jlong filter_klass_pointers))
2977 CompilerThreadCanCallJava canCallJava(thread, true); // Requires Java support
2978 InstanceKlass* holder = check_field(InstanceKlass::cast(UNPACK_PAIR(Klass, klass)), index, JVMCIENV);
2979 fieldDescriptor fd(holder, index);
2980 return get_encoded_annotation_data(holder, fd.annotations(), false, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2981 C2V_END
2982
2983 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current))
2984 FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address);
2985 int result_length = 0;
2986 for (FailedSpeculation* fs = head; fs != nullptr; fs = fs->next()) {
2987 result_length++;
2988 }
2989 int current_length = 0;
2990 JVMCIObjectArray current_array = nullptr;
2991 if (current != nullptr) {
2992 current_array = JVMCIENV->wrap(current);
2993 current_length = JVMCIENV->get_length(current_array);
2994 if (current_length == result_length) {
2995 // No new failures
2996 return current;
2997 }
2998 }
2999 JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL);
3000 int result_index = 0;
3001 for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) {
3002 assert(fs != nullptr, "npe");
3003 JVMCIPrimitiveArray entry;
3004 if (result_index < current_length) {
3005 entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index);
3006 } else {
3007 entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL);
3008 JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len());
3009 }
3010 JVMCIENV->put_object_at(result, result_index++, entry);
3011 }
3012 return JVMCIENV->get_jobjectArray(result);
3013 C2V_END
3014
3015 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
3016 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
3017 MethodData* method_data = get_profiling_method_data(method, CHECK_0);
3018 return (jlong) method_data->get_failed_speculations_address();
3019 C2V_END
3020
3021 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address))
3022 FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address);
3023 C2V_END
3024
3025 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj))
3026 JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj);
3027 int speculation_len = JVMCIENV->get_length(speculation_handle);
3028 char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len);
3029 JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len);
3030 return FailedSpeculation::add_failed_speculation(nullptr, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len);
3031 C2V_END
3032
3033 C2V_VMENTRY(void, callSystemExit, (JNIEnv* env, jobject, jint status))
3034 if (!JVMCIENV->is_hotspot()) {
3035 // It's generally not safe to call Java code before the module system is initialized
3036 if (!Universe::is_module_initialized()) {
3037 JVMCI_event_1("callSystemExit(%d) before Universe::is_module_initialized() -> direct VM exit", status);
3038 vm_exit_during_initialization();
3039 }
3040 }
3041 CompilerThreadCanCallJava canCallJava(thread, true);
3042 JavaValue result(T_VOID);
3043 JavaCallArguments jargs(1);
3044 jargs.push_int(status);
3045 JavaCalls::call_static(&result,
3046 vmClasses::System_klass(),
3047 vmSymbols::exit_method_name(),
3048 vmSymbols::int_void_signature(),
3049 &jargs,
3050 CHECK);
3051 C2V_END
3052
3053 C2V_VMENTRY_0(jlong, ticksNow, (JNIEnv* env, jobject))
3054 return CompilerEvent::ticksNow();
3055 C2V_END
3056
3057 C2V_VMENTRY_0(jint, registerCompilerPhase, (JNIEnv* env, jobject, jstring jphase_name))
3058 #if INCLUDE_JFR
3059 JVMCIObject phase_name = JVMCIENV->wrap(jphase_name);
3060 const char *name = JVMCIENV->as_utf8_string(phase_name);
3061 return CompilerEvent::PhaseEvent::get_phase_id(name, true, true, true);
3062 #else
3063 return -1;
3064 #endif // !INCLUDE_JFR
3065 C2V_END
3066
3067 C2V_VMENTRY(void, notifyCompilerPhaseEvent, (JNIEnv* env, jobject, jlong startTime, jint phase, jint compileId, jint level))
3068 EventCompilerPhase event(UNTIMED);
3069 if (event.should_commit()) {
3070 CompilerEvent::PhaseEvent::post(event, startTime, phase, compileId, level);
3071 }
3072 C2V_END
3073
3074 C2V_VMENTRY(void, notifyCompilerInliningEvent, (JNIEnv* env, jobject, jint compileId, ARGUMENT_PAIR(caller), ARGUMENT_PAIR(callee), jboolean succeeded, jstring jmessage, jint bci))
3075 EventCompilerInlining event;
3076 if (event.should_commit()) {
3077 Method* caller = UNPACK_PAIR(Method, caller);
3078 Method* callee = UNPACK_PAIR(Method, callee);
3079 JVMCIObject message = JVMCIENV->wrap(jmessage);
3080 CompilerEvent::InlineEvent::post(event, compileId, caller, callee, succeeded, JVMCIENV->as_utf8_string(message), bci);
3081 }
3082 C2V_END
3083
3084 C2V_VMENTRY(void, setThreadLocalObject, (JNIEnv* env, jobject, jint id, jobject value))
3085 requireInHotSpot("setThreadLocalObject", JVMCI_CHECK);
3086 if (id == 0) {
3087 thread->set_jvmci_reserved_oop0(JNIHandles::resolve(value));
3088 return;
3089 }
3090 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
3091 err_msg("%d is not a valid thread local id", id));
3092 C2V_END
3093
3094 C2V_VMENTRY_NULL(jobject, getThreadLocalObject, (JNIEnv* env, jobject, jint id))
3095 requireInHotSpot("getThreadLocalObject", JVMCI_CHECK_NULL);
3096 if (id == 0) {
3097 return JNIHandles::make_local(thread->get_jvmci_reserved_oop0());
3098 }
3099 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
3100 err_msg("%d is not a valid thread local id", id));
3101 C2V_END
3102
3103 C2V_VMENTRY(void, setThreadLocalLong, (JNIEnv* env, jobject, jint id, jlong value))
3104 requireInHotSpot("setThreadLocalLong", JVMCI_CHECK);
3105 if (id == 0) {
3106 thread->set_jvmci_reserved0(value);
3107 } else if (id == 1) {
3108 thread->set_jvmci_reserved1(value);
3109 } else {
3110 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
3111 err_msg("%d is not a valid thread local id", id));
3112 }
3113 C2V_END
3114
3115 C2V_VMENTRY_0(jlong, getThreadLocalLong, (JNIEnv* env, jobject, jint id))
3116 requireInHotSpot("getThreadLocalLong", JVMCI_CHECK_0);
3117 if (id == 0) {
3118 return thread->get_jvmci_reserved0();
3119 } else if (id == 1) {
3120 return thread->get_jvmci_reserved1();
3121 } else {
3122 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
3123 err_msg("%d is not a valid thread local id", id));
3124 }
3125 C2V_END
3126
3127 C2V_VMENTRY(void, getOopMapAt, (JNIEnv* env, jobject, ARGUMENT_PAIR(method),
3128 jint bci, jlongArray oop_map_handle))
3129 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
3130 if (bci < 0 || bci >= method->code_size()) {
3131 JVMCI_THROW_MSG(IllegalArgumentException,
3132 err_msg("bci %d is out of bounds [0 .. %d)", bci, method->code_size()));
3133 }
3134 InterpreterOopMap mask;
3135 OopMapCache::compute_one_oop_map(method, bci, &mask);
3136 if (!mask.has_valid_mask()) {
3137 JVMCI_THROW_MSG(IllegalArgumentException, err_msg("bci %d is not valid", bci));
3138 }
3139 if (mask.number_of_entries() == 0) {
3140 return;
3141 }
3142
3143 int nslots = method->max_locals() + method->max_stack();
3144 int nwords = ((nslots - 1) / 64) + 1;
3145 JVMCIPrimitiveArray oop_map = JVMCIENV->wrap(oop_map_handle);
3146 int oop_map_len = JVMCIENV->get_length(oop_map);
3147 if (nwords > oop_map_len) {
3148 JVMCI_THROW_MSG(IllegalArgumentException,
3149 err_msg("oop map too short: %d > %d", nwords, oop_map_len));
3150 }
3151
3152 jlong* oop_map_buf = NEW_RESOURCE_ARRAY_IN_THREAD_RETURN_NULL(THREAD, jlong, nwords);
3153 if (oop_map_buf == nullptr) {
3154 JVMCI_THROW_MSG(InternalError, err_msg("could not allocate %d longs", nwords));
3155 }
3156 for (int i = 0; i < nwords; i++) {
3157 oop_map_buf[i] = 0L;
3158 }
3159
3160 BitMapView oop_map_view = BitMapView((BitMap::bm_word_t*) oop_map_buf, nwords * BitsPerLong);
3161 for (int i = 0; i < nslots; i++) {
3162 if (mask.is_oop(i)) {
3163 oop_map_view.set_bit(i);
3164 }
3165 }
3166 JVMCIENV->copy_longs_from((jlong*)oop_map_buf, oop_map, 0, nwords);
3167 C2V_END
3168
3169 #define CC (char*) /*cast a literal from (const char*)*/
3170 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
3171
3172 #define STRING "Ljava/lang/String;"
3173 #define OBJECT "Ljava/lang/Object;"
3174 #define CLASS "Ljava/lang/Class;"
3175 #define OBJECTCONSTANT "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;"
3176 #define EXECUTABLE "Ljava/lang/reflect/Executable;"
3177 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;"
3178 #define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;"
3179 #define BYTECODE_FRAME "Ljdk/vm/ci/code/BytecodeFrame;"
3180 #define JAVACONSTANT "Ljdk/vm/ci/meta/JavaConstant;"
3181 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;"
3182 #define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
3183 #define FIELDINFO "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl$FieldInfo;"
3184 #define HS_RESOLVED_TYPE "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;"
3185 #define HS_INSTALLED_CODE "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;"
3186 #define HS_NMETHOD "Ljdk/vm/ci/hotspot/HotSpotNmethod;"
3187 #define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
3188 #define HS_CONFIG "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
3189 #define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
3190 #define HS_SPECULATION_LOG "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
3191 #define REFLECTION_EXECUTABLE "Ljava/lang/reflect/Executable;"
3192 #define REFLECTION_FIELD "Ljava/lang/reflect/Field;"
3193
3194 // Types wrapping VM pointers. The ...2 macro is for a pair: (wrapper, pointer)
3195 #define HS_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
3196 #define HS_METHOD2 "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;J"
3197 #define HS_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
3198 #define HS_KLASS2 "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;J"
3199 #define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
3200 #define HS_CONSTANT_POOL2 "Ljdk/vm/ci/hotspot/HotSpotConstantPool;J"
3201
3202 JNINativeMethod CompilerToVM::methods[] = {
3203 {CC "getBytecode", CC "(" HS_METHOD2 ")[B", FN_PTR(getBytecode)},
3204 {CC "getExceptionTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getExceptionTableStart)},
3205 {CC "getExceptionTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getExceptionTableLength)},
3206 {CC "findUniqueConcreteMethod", CC "(" HS_KLASS2 HS_METHOD2 ")" HS_METHOD, FN_PTR(findUniqueConcreteMethod)},
3207 {CC "getImplementor", CC "(" HS_KLASS2 ")" HS_KLASS, FN_PTR(getImplementor)},
3208 {CC "getStackTraceElement", CC "(" HS_METHOD2 "I)" STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)},
3209 {CC "methodIsIgnoredBySecurityStackWalk", CC "(" HS_METHOD2 ")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)},
3210 {CC "setNotInlinableOrCompilable", CC "(" HS_METHOD2 ")V", FN_PTR(setNotInlinableOrCompilable)},
3211 {CC "isCompilable", CC "(" HS_METHOD2 ")Z", FN_PTR(isCompilable)},
3212 {CC "hasNeverInlineDirective", CC "(" HS_METHOD2 ")Z", FN_PTR(hasNeverInlineDirective)},
3213 {CC "shouldInlineMethod", CC "(" HS_METHOD2 ")Z", FN_PTR(shouldInlineMethod)},
3214 {CC "lookupType", CC "(" STRING HS_KLASS2 "IZ)" HS_RESOLVED_TYPE, FN_PTR(lookupType)},
3215 {CC "lookupJClass", CC "(J)" HS_RESOLVED_TYPE, FN_PTR(lookupJClass)},
3216 {CC "getArrayType", CC "(C" HS_KLASS2 ")" HS_KLASS, FN_PTR(getArrayType)},
3217 {CC "lookupClass", CC "(" CLASS ")" HS_RESOLVED_TYPE, FN_PTR(lookupClass)},
3218 {CC "lookupNameInPool", CC "(" HS_CONSTANT_POOL2 "II)" STRING, FN_PTR(lookupNameInPool)},
3219 {CC "lookupNameAndTypeRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(lookupNameAndTypeRefIndexInPool)},
3220 {CC "lookupSignatureInPool", CC "(" HS_CONSTANT_POOL2 "II)" STRING, FN_PTR(lookupSignatureInPool)},
3221 {CC "lookupKlassRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(lookupKlassRefIndexInPool)},
3222 {CC "lookupKlassInPool", CC "(" HS_CONSTANT_POOL2 "I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)},
3223 {CC "lookupAppendixInPool", CC "(" HS_CONSTANT_POOL2 "I)" OBJECTCONSTANT, FN_PTR(lookupAppendixInPool)},
3224 {CC "lookupMethodInPool", CC "(" HS_CONSTANT_POOL2 "IB" HS_METHOD2 ")" HS_METHOD, FN_PTR(lookupMethodInPool)},
3225 {CC "lookupConstantInPool", CC "(" HS_CONSTANT_POOL2 "IZ)" JAVACONSTANT, FN_PTR(lookupConstantInPool)},
3226 {CC "resolveBootstrapMethod", CC "(" HS_CONSTANT_POOL2 "I)[" OBJECT, FN_PTR(resolveBootstrapMethod)},
3227 {CC "bootstrapArgumentIndexAt", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(bootstrapArgumentIndexAt)},
3228 {CC "getUncachedStringInPool", CC "(" HS_CONSTANT_POOL2 "I)" JAVACONSTANT, FN_PTR(getUncachedStringInPool)},
3229 {CC "resolveTypeInPool", CC "(" HS_CONSTANT_POOL2 "I)" HS_KLASS, FN_PTR(resolveTypeInPool)},
3230 {CC "resolveFieldInPool", CC "(" HS_CONSTANT_POOL2 "I" HS_METHOD2 "B[I)" HS_KLASS, FN_PTR(resolveFieldInPool)},
3231 {CC "decodeFieldIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(decodeFieldIndexToCPIndex)},
3232 {CC "decodeMethodIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(decodeMethodIndexToCPIndex)},
3233 {CC "decodeIndyIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "IZ)I", FN_PTR(decodeIndyIndexToCPIndex)},
3234 {CC "resolveInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "I)V", FN_PTR(resolveInvokeHandleInPool)},
3235 {CC "isResolvedInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(isResolvedInvokeHandleInPool)},
3236 {CC "resolveMethod", CC "(" HS_KLASS2 HS_METHOD2 HS_KLASS2 ")" HS_METHOD, FN_PTR(resolveMethod)},
3237 {CC "getSignaturePolymorphicHolders", CC "()[" STRING, FN_PTR(getSignaturePolymorphicHolders)},
3238 {CC "getVtableIndexForInterfaceMethod", CC "(" HS_KLASS2 HS_METHOD2 ")I", FN_PTR(getVtableIndexForInterfaceMethod)},
3239 {CC "getClassInitializer", CC "(" HS_KLASS2 ")" HS_METHOD, FN_PTR(getClassInitializer)},
3240 {CC "hasFinalizableSubclass", CC "(" HS_KLASS2 ")Z", FN_PTR(hasFinalizableSubclass)},
3241 {CC "getMaxCallTargetOffset", CC "(J)J", FN_PTR(getMaxCallTargetOffset)},
3242 {CC "asResolvedJavaMethod", CC "(" EXECUTABLE ")" HS_METHOD, FN_PTR(asResolvedJavaMethod)},
3243 {CC "getResolvedJavaMethod", CC "(" OBJECTCONSTANT "J)" HS_METHOD, FN_PTR(getResolvedJavaMethod)},
3244 {CC "getConstantPool", CC "(" OBJECT "JZ)" HS_CONSTANT_POOL, FN_PTR(getConstantPool)},
3245 {CC "getResolvedJavaType0", CC "(Ljava/lang/Object;JZ)" HS_KLASS, FN_PTR(getResolvedJavaType0)},
3246 {CC "readConfiguration", CC "()[" OBJECT, FN_PTR(readConfiguration)},
3247 {CC "installCode0", CC "(JJZ" HS_COMPILED_CODE "[" OBJECT INSTALLED_CODE "J[B)I", FN_PTR(installCode0)},
3248 {CC "getInstallCodeFlags", CC "()I", FN_PTR(getInstallCodeFlags)},
3249 {CC "resetCompilationStatistics", CC "()V", FN_PTR(resetCompilationStatistics)},
3250 {CC "disassembleCodeBlob", CC "(" INSTALLED_CODE ")" STRING, FN_PTR(disassembleCodeBlob)},
3251 {CC "executeHotSpotNmethod", CC "([" OBJECT HS_NMETHOD ")" OBJECT, FN_PTR(executeHotSpotNmethod)},
3252 {CC "getLineNumberTable", CC "(" HS_METHOD2 ")[J", FN_PTR(getLineNumberTable)},
3253 {CC "getLocalVariableTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getLocalVariableTableStart)},
3254 {CC "getLocalVariableTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getLocalVariableTableLength)},
3255 {CC "reprofile", CC "(" HS_METHOD2 ")V", FN_PTR(reprofile)},
3256 {CC "invalidateHotSpotNmethod", CC "(" HS_NMETHOD "Z)V", FN_PTR(invalidateHotSpotNmethod)},
3257 {CC "collectCounters", CC "()[J", FN_PTR(collectCounters)},
3258 {CC "getCountersSize", CC "()I", FN_PTR(getCountersSize)},
3259 {CC "setCountersSize", CC "(I)Z", FN_PTR(setCountersSize)},
3260 {CC "allocateCompileId", CC "(" HS_METHOD2 "I)I", FN_PTR(allocateCompileId)},
3261 {CC "isMature", CC "(J)Z", FN_PTR(isMature)},
3262 {CC "hasCompiledCodeForOSR", CC "(" HS_METHOD2 "II)Z", FN_PTR(hasCompiledCodeForOSR)},
3263 {CC "getSymbol", CC "(J)" STRING, FN_PTR(getSymbol)},
3264 {CC "getSignatureName", CC "(J)" STRING, FN_PTR(getSignatureName)},
3265 {CC "iterateFrames", CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT, FN_PTR(iterateFrames)},
3266 {CC "materializeVirtualObjects", CC "(" HS_STACK_FRAME_REF "Z)V", FN_PTR(materializeVirtualObjects)},
3267 {CC "shouldDebugNonSafepoints", CC "()Z", FN_PTR(shouldDebugNonSafepoints)},
3268 {CC "writeDebugOutput", CC "(JIZ)V", FN_PTR(writeDebugOutput)},
3269 {CC "flushDebugOutput", CC "()V", FN_PTR(flushDebugOutput)},
3270 {CC "methodDataProfileDataSize", CC "(JI)I", FN_PTR(methodDataProfileDataSize)},
3271 {CC "methodDataExceptionSeen", CC "(JI)I", FN_PTR(methodDataExceptionSeen)},
3272 {CC "interpreterFrameSize", CC "(" BYTECODE_FRAME ")I", FN_PTR(interpreterFrameSize)},
3273 {CC "compileToBytecode", CC "(" OBJECTCONSTANT ")V", FN_PTR(compileToBytecode)},
3274 {CC "getFlagValue", CC "(" STRING ")" OBJECT, FN_PTR(getFlagValue)},
3275 {CC "getInterfaces", CC "(" HS_KLASS2 ")[" HS_KLASS, FN_PTR(getInterfaces)},
3276 {CC "getComponentType", CC "(" HS_KLASS2 ")" HS_RESOLVED_TYPE, FN_PTR(getComponentType)},
3277 {CC "ensureInitialized", CC "(" HS_KLASS2 ")V", FN_PTR(ensureInitialized)},
3278 {CC "ensureLinked", CC "(" HS_KLASS2 ")V", FN_PTR(ensureLinked)},
3279 {CC "getIdentityHashCode", CC "(" OBJECTCONSTANT ")I", FN_PTR(getIdentityHashCode)},
3280 {CC "isInternedString", CC "(" OBJECTCONSTANT ")Z", FN_PTR(isInternedString)},
3281 {CC "unboxPrimitive", CC "(" OBJECTCONSTANT ")" OBJECT, FN_PTR(unboxPrimitive)},
3282 {CC "boxPrimitive", CC "(" OBJECT ")" OBJECTCONSTANT, FN_PTR(boxPrimitive)},
3283 {CC "getDeclaredConstructors", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredConstructors)},
3284 {CC "getDeclaredMethods", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredMethods)},
3285 {CC "getDeclaredFieldsInfo", CC "(" HS_KLASS2 ")[" FIELDINFO, FN_PTR(getDeclaredFieldsInfo)},
3286 {CC "readStaticFieldValue", CC "(" HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readStaticFieldValue)},
3287 {CC "readFieldValue", CC "(" OBJECTCONSTANT HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readFieldValue)},
3288 {CC "isInstance", CC "(" HS_KLASS2 OBJECTCONSTANT ")Z", FN_PTR(isInstance)},
3289 {CC "isAssignableFrom", CC "(" HS_KLASS2 HS_KLASS2 ")Z", FN_PTR(isAssignableFrom)},
3290 {CC "isTrustedForIntrinsics", CC "(" HS_KLASS2 ")Z", FN_PTR(isTrustedForIntrinsics)},
3291 {CC "asJavaType", CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE, FN_PTR(asJavaType)},
3292 {CC "asString", CC "(" OBJECTCONSTANT ")" STRING, FN_PTR(asString)},
3293 {CC "equals", CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z", FN_PTR(equals)},
3294 {CC "getJavaMirror", CC "(" HS_KLASS2 ")" OBJECTCONSTANT, FN_PTR(getJavaMirror)},
3295 {CC "getArrayLength", CC "(" OBJECTCONSTANT ")I", FN_PTR(getArrayLength)},
3296 {CC "readArrayElement", CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;", FN_PTR(readArrayElement)},
3297 {CC "arrayBaseOffset", CC "(C)I", FN_PTR(arrayBaseOffset)},
3298 {CC "arrayIndexScale", CC "(C)I", FN_PTR(arrayIndexScale)},
3299 {CC "clearOopHandle", CC "(J)V", FN_PTR(clearOopHandle)},
3300 {CC "releaseClearedOopHandles", CC "()V", FN_PTR(releaseClearedOopHandles)},
3301 {CC "registerNativeMethods", CC "(" CLASS ")[J", FN_PTR(registerNativeMethods)},
3302 {CC "isCurrentThreadAttached", CC "()Z", FN_PTR(isCurrentThreadAttached)},
3303 {CC "getCurrentJavaThread", CC "()J", FN_PTR(getCurrentJavaThread)},
3304 {CC "attachCurrentThread", CC "([BZ[J)Z", FN_PTR(attachCurrentThread)},
3305 {CC "detachCurrentThread", CC "(Z)Z", FN_PTR(detachCurrentThread)},
3306 {CC "translate", CC "(" OBJECT "Z)J", FN_PTR(translate)},
3307 {CC "unhand", CC "(J)" OBJECT, FN_PTR(unhand)},
3308 {CC "updateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(updateHotSpotNmethod)},
3309 {CC "getCode", CC "(" HS_INSTALLED_CODE ")[B", FN_PTR(getCode)},
3310 {CC "asReflectionExecutable", CC "(" HS_METHOD2 ")" REFLECTION_EXECUTABLE, FN_PTR(asReflectionExecutable)},
3311 {CC "asReflectionField", CC "(" HS_KLASS2 "I)" REFLECTION_FIELD, FN_PTR(asReflectionField)},
3312 {CC "getEncodedClassAnnotationData", CC "(" HS_KLASS2 OBJECT "IJ)[B", FN_PTR(getEncodedClassAnnotationData)},
3313 {CC "getEncodedExecutableAnnotationData", CC "(" HS_METHOD2 OBJECT "IJ)[B", FN_PTR(getEncodedExecutableAnnotationData)},
3314 {CC "getEncodedFieldAnnotationData", CC "(" HS_KLASS2 "I" OBJECT "IJ)[B", FN_PTR(getEncodedFieldAnnotationData)},
3315 {CC "getFailedSpeculations", CC "(J[[B)[[B", FN_PTR(getFailedSpeculations)},
3316 {CC "getFailedSpeculationsAddress", CC "(" HS_METHOD2 ")J", FN_PTR(getFailedSpeculationsAddress)},
3317 {CC "releaseFailedSpeculations", CC "(J)V", FN_PTR(releaseFailedSpeculations)},
3318 {CC "addFailedSpeculation", CC "(J[B)Z", FN_PTR(addFailedSpeculation)},
3319 {CC "callSystemExit", CC "(I)V", FN_PTR(callSystemExit)},
3320 {CC "ticksNow", CC "()J", FN_PTR(ticksNow)},
3321 {CC "getThreadLocalObject", CC "(I)" OBJECT, FN_PTR(getThreadLocalObject)},
3322 {CC "setThreadLocalObject", CC "(I" OBJECT ")V", FN_PTR(setThreadLocalObject)},
3323 {CC "getThreadLocalLong", CC "(I)J", FN_PTR(getThreadLocalLong)},
3324 {CC "setThreadLocalLong", CC "(IJ)V", FN_PTR(setThreadLocalLong)},
3325 {CC "registerCompilerPhase", CC "(" STRING ")I", FN_PTR(registerCompilerPhase)},
3326 {CC "notifyCompilerPhaseEvent", CC "(JIII)V", FN_PTR(notifyCompilerPhaseEvent)},
3327 {CC "notifyCompilerInliningEvent", CC "(I" HS_METHOD2 HS_METHOD2 "ZLjava/lang/String;I)V", FN_PTR(notifyCompilerInliningEvent)},
3328 {CC "getOopMapAt", CC "(" HS_METHOD2 "I[J)V", FN_PTR(getOopMapAt)},
3329 };
3330
3331 int CompilerToVM::methods_count() {
3332 return sizeof(methods) / sizeof(JNINativeMethod);
3333 }