1 /*
2 * Copyright (c) 2011, 2023, 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 "jfr/jfrEvents.hpp"
39 #include "jvmci/jvmciCodeInstaller.hpp"
40 #include "jvmci/jvmciCompilerToVM.hpp"
41 #include "jvmci/jvmciRuntime.hpp"
42 #include "logging/log.hpp"
43 #include "logging/logTag.hpp"
44 #include "memory/oopFactory.hpp"
45 #include "memory/universe.hpp"
46 #include "oops/constantPool.inline.hpp"
47 #include "oops/instanceKlass.inline.hpp"
48 #include "oops/instanceMirrorKlass.hpp"
49 #include "oops/method.inline.hpp"
50 #include "oops/objArrayKlass.inline.hpp"
51 #include "oops/typeArrayOop.inline.hpp"
52 #include "prims/jvmtiExport.hpp"
53 #include "prims/methodHandles.hpp"
54 #include "prims/nativeLookup.hpp"
55 #include "runtime/atomic.hpp"
56 #include "runtime/deoptimization.hpp"
57 #include "runtime/fieldDescriptor.inline.hpp"
58 #include "runtime/frame.inline.hpp"
59 #include "runtime/globals_extension.hpp"
60 #include "runtime/interfaceSupport.inline.hpp"
61 #include "runtime/jniHandles.inline.hpp"
62 #include "runtime/reflectionUtils.hpp"
63 #include "runtime/stackFrameStream.inline.hpp"
64 #include "runtime/timerTrace.hpp"
65 #include "runtime/vframe.inline.hpp"
66 #include "runtime/vframe_hp.hpp"
67 #if INCLUDE_JFR
68 #include "jfr/jfr.hpp"
69 #endif
70
71 JVMCIKlassHandle::JVMCIKlassHandle(Thread* thread, Klass* klass) {
72 _thread = thread;
73 _klass = klass;
74 if (klass != nullptr) {
75 _holder = Handle(_thread, klass->klass_holder());
76 }
77 }
78
79 JVMCIKlassHandle& JVMCIKlassHandle::operator=(Klass* klass) {
80 _klass = klass;
81 if (klass != nullptr) {
82 _holder = Handle(_thread, klass->klass_holder());
83 }
84 return *this;
85 }
86
87 static void requireInHotSpot(const char* caller, JVMCI_TRAPS) {
88 if (!JVMCIENV->is_hotspot()) {
89 JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot call %s from JVMCI shared library", caller));
90 }
91 }
92
93 class JVMCITraceMark : public StackObj {
94 const char* _msg;
95 public:
96 JVMCITraceMark(const char* msg) {
97 _msg = msg;
98 JVMCI_event_2("Enter %s", _msg);
99 }
100 ~JVMCITraceMark() {
101 JVMCI_event_2(" Exit %s", _msg);
102 }
103 };
104
105 class JavaArgumentUnboxer : public SignatureIterator {
106 protected:
107 JavaCallArguments* _jca;
108 arrayOop _args;
109 int _index;
110
111 Handle next_arg(BasicType expectedType);
112
113 public:
114 JavaArgumentUnboxer(Symbol* signature,
115 JavaCallArguments* jca,
116 arrayOop args,
117 bool is_static)
118 : SignatureIterator(signature)
119 {
120 this->_return_type = T_ILLEGAL;
121 _jca = jca;
122 _index = 0;
123 _args = args;
124 if (!is_static) {
125 _jca->push_oop(next_arg(T_OBJECT));
126 }
127 do_parameters_on(this);
128 assert(_index == args->length(), "arg count mismatch with signature");
129 }
130
131 private:
132 friend class SignatureIterator; // so do_parameters_on can call do_type
133 void do_type(BasicType type) {
134 if (is_reference_type(type)) {
135 (type == T_PRIMITIVE_OBJECT) ? _jca->push_oop(next_arg(T_PRIMITIVE_OBJECT)) : _jca->push_oop(next_arg(T_OBJECT));
136 return;
137 }
138 Handle arg = next_arg(type);
139 int box_offset = java_lang_boxing_object::value_offset(type);
140 switch (type) {
141 case T_BOOLEAN: _jca->push_int(arg->bool_field(box_offset)); break;
142 case T_CHAR: _jca->push_int(arg->char_field(box_offset)); break;
143 case T_SHORT: _jca->push_int(arg->short_field(box_offset)); break;
144 case T_BYTE: _jca->push_int(arg->byte_field(box_offset)); break;
145 case T_INT: _jca->push_int(arg->int_field(box_offset)); break;
146 case T_LONG: _jca->push_long(arg->long_field(box_offset)); break;
147 case T_FLOAT: _jca->push_float(arg->float_field(box_offset)); break;
148 case T_DOUBLE: _jca->push_double(arg->double_field(box_offset)); break;
149 default: ShouldNotReachHere();
150 }
151 }
152 };
153
154 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) {
155 assert(_index < _args->length(), "out of bounds");
156 oop arg=((objArrayOop) (_args))->obj_at(_index++);
157 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
158 return Handle(Thread::current(), arg);
159 }
160
161 // Bring the JVMCI compiler thread into the VM state.
162 #define JVMCI_VM_ENTRY_MARK \
163 MACOS_AARCH64_ONLY(ThreadWXEnable __wx(WXWrite, thread)); \
164 ThreadInVMfromNative __tiv(thread); \
165 HandleMarkCleaner __hm(thread); \
166 JavaThread* THREAD = thread; \
167 debug_only(VMNativeEntryWrapper __vew;)
168
169 // Native method block that transitions current thread to '_thread_in_vm'.
170 #define C2V_BLOCK(result_type, name, signature) \
171 JVMCI_VM_ENTRY_MARK; \
172 ResourceMark rm; \
173 JNI_JVMCIENV(JVMCI::compilation_tick(thread), env);
174
175 static JavaThread* get_current_thread(bool allow_null=true) {
176 Thread* thread = Thread::current_or_null_safe();
177 if (thread == nullptr) {
178 assert(allow_null, "npe");
179 return nullptr;
180 }
181 return JavaThread::cast(thread);
182 }
183
184 // Entry to native method implementation that transitions
185 // current thread to '_thread_in_vm'.
186 #define C2V_VMENTRY(result_type, name, signature) \
187 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
188 JavaThread* thread = get_current_thread(); \
189 if (thread == nullptr) { \
190 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
191 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
192 return; \
193 } \
194 C2V_BLOCK(result_type, name, signature) \
195 JVMCITraceMark jtm("CompilerToVM::" #name);
196
197 #define C2V_VMENTRY_(result_type, name, signature, result) \
198 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
199 JavaThread* thread = get_current_thread(); \
200 if (thread == nullptr) { \
201 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
202 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
203 return result; \
204 } \
205 C2V_BLOCK(result_type, name, signature) \
206 JVMCITraceMark jtm("CompilerToVM::" #name);
207
208 #define C2V_VMENTRY_NULL(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, nullptr)
209 #define C2V_VMENTRY_0(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, 0)
210
211 // Entry to native method implementation that does not transition
212 // current thread to '_thread_in_vm'.
213 #define C2V_VMENTRY_PREFIX(result_type, name, signature) \
214 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
215 JavaThread* thread = get_current_thread();
216
217 #define C2V_END }
218
219 #define JNI_THROW(caller, name, msg) do { \
220 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
221 if (__throw_res != JNI_OK) { \
222 tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \
223 } \
224 return; \
225 } while (0);
226
227 #define JNI_THROW_(caller, name, msg, result) do { \
228 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
229 if (__throw_res != JNI_OK) { \
230 tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \
231 } \
232 return result; \
233 } while (0)
234
235 jobjectArray readConfiguration0(JNIEnv *env, JVMCI_TRAPS);
236
237 C2V_VMENTRY_NULL(jobjectArray, readConfiguration, (JNIEnv* env))
238 jobjectArray config = readConfiguration0(env, JVMCI_CHECK_NULL);
239 return config;
240 }
241
242 C2V_VMENTRY_NULL(jobject, getFlagValue, (JNIEnv* env, jobject c2vm, jobject name_handle))
243 #define RETURN_BOXED_LONG(value) jvalue p; p.j = (jlong) (value); JVMCIObject box = JVMCIENV->create_box(T_LONG, &p, JVMCI_CHECK_NULL); return box.as_jobject();
244 #define RETURN_BOXED_DOUBLE(value) jvalue p; p.d = (jdouble) (value); JVMCIObject box = JVMCIENV->create_box(T_DOUBLE, &p, JVMCI_CHECK_NULL); return box.as_jobject();
245 JVMCIObject name = JVMCIENV->wrap(name_handle);
246 if (name.is_null()) {
247 JVMCI_THROW_NULL(NullPointerException);
248 }
249 const char* cstring = JVMCIENV->as_utf8_string(name);
250 const JVMFlag* flag = JVMFlag::find_declared_flag(cstring);
251 if (flag == nullptr) {
252 return c2vm;
253 }
254 if (flag->is_bool()) {
255 jvalue prim;
256 prim.z = flag->get_bool();
257 JVMCIObject box = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL);
258 return JVMCIENV->get_jobject(box);
259 } else if (flag->is_ccstr()) {
260 JVMCIObject value = JVMCIENV->create_string(flag->get_ccstr(), JVMCI_CHECK_NULL);
261 return JVMCIENV->get_jobject(value);
262 } else if (flag->is_intx()) {
263 RETURN_BOXED_LONG(flag->get_intx());
264 } else if (flag->is_int()) {
265 RETURN_BOXED_LONG(flag->get_int());
266 } else if (flag->is_uint()) {
267 RETURN_BOXED_LONG(flag->get_uint());
268 } else if (flag->is_uint64_t()) {
269 RETURN_BOXED_LONG(flag->get_uint64_t());
270 } else if (flag->is_size_t()) {
271 RETURN_BOXED_LONG(flag->get_size_t());
272 } else if (flag->is_uintx()) {
273 RETURN_BOXED_LONG(flag->get_uintx());
274 } else if (flag->is_double()) {
275 RETURN_BOXED_DOUBLE(flag->get_double());
276 } else {
277 JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->name(), flag->type_string());
278 }
279 #undef RETURN_BOXED_LONG
280 #undef RETURN_BOXED_DOUBLE
281 C2V_END
282
283 // Macros for argument pairs representing a wrapper object and its wrapped VM pointer
284 #define ARGUMENT_PAIR(name) jobject name ## _obj, jlong name ## _pointer
285 #define UNPACK_PAIR(type, name) ((type*) name ## _pointer)
286
287 C2V_VMENTRY_NULL(jbyteArray, getBytecode, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
288 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
289
290 int code_size = method->code_size();
291 jbyte* reconstituted_code = NEW_RESOURCE_ARRAY(jbyte, code_size);
292
293 guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
294 // iterate over all bytecodes and replace non-Java bytecodes
295
296 for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
297 Bytecodes::Code code = s.code();
298 Bytecodes::Code raw_code = s.raw_code();
299 int bci = s.bci();
300 int len = s.instruction_size();
301
302 // Restore original byte code.
303 reconstituted_code[bci] = (jbyte) (s.is_wide()? Bytecodes::_wide : code);
304 if (len > 1) {
305 memcpy(reconstituted_code + (bci + 1), s.bcp()+1, len-1);
306 }
307
308 if (len > 1) {
309 // Restore the big-endian constant pool indexes.
310 // Cf. Rewriter::scan_method
311 switch (code) {
312 case Bytecodes::_getstatic:
313 case Bytecodes::_putstatic:
314 case Bytecodes::_getfield:
315 case Bytecodes::_putfield:
316 case Bytecodes::_invokevirtual:
317 case Bytecodes::_invokespecial:
318 case Bytecodes::_invokestatic:
319 case Bytecodes::_invokeinterface:
320 case Bytecodes::_invokehandle: {
321 int cp_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
322 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
323 break;
324 }
325
326 case Bytecodes::_invokedynamic: {
327 int cp_index = Bytes::get_native_u4((address) reconstituted_code + (bci + 1));
328 Bytes::put_Java_u4((address) reconstituted_code + (bci + 1), (u4) cp_index);
329 break;
330 }
331
332 default:
333 break;
334 }
335
336 // Not all ldc byte code are rewritten.
337 switch (raw_code) {
338 case Bytecodes::_fast_aldc: {
339 int cpc_index = reconstituted_code[bci + 1] & 0xff;
340 int cp_index = method->constants()->object_to_cp_index(cpc_index);
341 assert(cp_index < method->constants()->length(), "sanity check");
342 reconstituted_code[bci + 1] = (jbyte) cp_index;
343 break;
344 }
345
346 case Bytecodes::_fast_aldc_w: {
347 int cpc_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
348 int cp_index = method->constants()->object_to_cp_index(cpc_index);
349 assert(cp_index < method->constants()->length(), "sanity check");
350 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
351 break;
352 }
353
354 default:
355 break;
356 }
357 }
358 }
359
360 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
361 JVMCIENV->copy_bytes_from(reconstituted_code, result, 0, code_size);
362 return JVMCIENV->get_jbyteArray(result);
363 C2V_END
364
365 C2V_VMENTRY_0(jint, getExceptionTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
366 Method* method = UNPACK_PAIR(Method, method);
367 return method->exception_table_length();
368 C2V_END
369
370 C2V_VMENTRY_0(jlong, getExceptionTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
371 Method* method = UNPACK_PAIR(Method, method);
372 if (method->exception_table_length() == 0) {
373 return 0L;
374 }
375 return (jlong) (address) method->exception_table_start();
376 C2V_END
377
378 C2V_VMENTRY_NULL(jobject, asResolvedJavaMethod, (JNIEnv* env, jobject, jobject executable_handle))
379 requireInHotSpot("asResolvedJavaMethod", JVMCI_CHECK_NULL);
380 oop executable = JNIHandles::resolve(executable_handle);
381 oop mirror = nullptr;
382 int slot = 0;
383
384 if (executable->klass() == vmClasses::reflect_Constructor_klass()) {
385 mirror = java_lang_reflect_Constructor::clazz(executable);
386 slot = java_lang_reflect_Constructor::slot(executable);
387 } else {
388 assert(executable->klass() == vmClasses::reflect_Method_klass(), "wrong type");
389 mirror = java_lang_reflect_Method::clazz(executable);
390 slot = java_lang_reflect_Method::slot(executable);
391 }
392 Klass* holder = java_lang_Class::as_Klass(mirror);
393 methodHandle method (THREAD, InstanceKlass::cast(holder)->method_with_idnum(slot));
394 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
395 return JVMCIENV->get_jobject(result);
396 }
397
398 C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset))
399 Method* method = nullptr;
400 JVMCIObject base_object = JVMCIENV->wrap(base);
401 if (base_object.is_null()) {
402 method = *((Method**)(offset));
403 } else {
404 Handle obj = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
405 if (obj->is_a(vmClasses::ResolvedMethodName_klass())) {
406 method = (Method*) (intptr_t) obj->long_field(offset);
407 } else {
408 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", obj->klass()->external_name()));
409 }
410 }
411 if (method == nullptr) {
412 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
413 }
414 assert (method->is_method(), "invalid read");
415 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, method), JVMCI_CHECK_NULL);
416 return JVMCIENV->get_jobject(result);
417 }
418
419 C2V_VMENTRY_NULL(jobject, getConstantPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass_or_method), jboolean is_klass))
420 ConstantPool* cp = nullptr;
421 if (UNPACK_PAIR(address, klass_or_method) == 0) {
422 JVMCI_THROW_NULL(NullPointerException);
423 }
424 if (!is_klass) {
425 cp = (UNPACK_PAIR(Method, klass_or_method))->constMethod()->constants();
426 } else {
427 cp = InstanceKlass::cast(UNPACK_PAIR(Klass, klass_or_method))->constants();
428 }
429
430 JVMCIObject result = JVMCIENV->get_jvmci_constant_pool(constantPoolHandle(THREAD, cp), JVMCI_CHECK_NULL);
431 return JVMCIENV->get_jobject(result);
432 }
433
434 C2V_VMENTRY_NULL(jobject, getResolvedJavaType0, (JNIEnv* env, jobject, jobject base, jlong offset, jboolean compressed))
435 JVMCIObject base_object = JVMCIENV->wrap(base);
436 if (base_object.is_null()) {
437 JVMCI_THROW_MSG_NULL(NullPointerException, "base object is null");
438 }
439
440 const char* base_desc = nullptr;
441 JVMCIKlassHandle klass(THREAD);
442 if (offset == oopDesc::klass_offset_in_bytes()) {
443 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
444 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
445 klass = base_oop->klass();
446 } else {
447 goto unexpected;
448 }
449 } else if (!compressed) {
450 if (JVMCIENV->isa_HotSpotConstantPool(base_object)) {
451 ConstantPool* cp = JVMCIENV->asConstantPool(base_object);
452 if (offset == in_bytes(ConstantPool::pool_holder_offset())) {
453 klass = cp->pool_holder();
454 } else {
455 base_desc = FormatBufferResource("[constant pool for %s]", cp->pool_holder()->signature_name());
456 goto unexpected;
457 }
458 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
459 Klass* base_klass = JVMCIENV->asKlass(base_object);
460 if (offset == in_bytes(Klass::subklass_offset())) {
461 klass = base_klass->subklass();
462 } else if (offset == in_bytes(Klass::super_offset())) {
463 klass = base_klass->super();
464 } else if (offset == in_bytes(Klass::next_sibling_offset())) {
465 klass = base_klass->next_sibling();
466 } else if (offset == in_bytes(ObjArrayKlass::element_klass_offset()) && base_klass->is_objArray_klass()) {
467 klass = ObjArrayKlass::cast(base_klass)->element_klass();
468 } else if (offset >= in_bytes(Klass::primary_supers_offset()) &&
469 offset < in_bytes(Klass::primary_supers_offset()) + (int) (sizeof(Klass*) * Klass::primary_super_limit()) &&
470 offset % sizeof(Klass*) == 0) {
471 // Offset is within the primary supers array
472 int index = (int) ((offset - in_bytes(Klass::primary_supers_offset())) / sizeof(Klass*));
473 klass = base_klass->primary_super_of_depth(index);
474 } else {
475 base_desc = FormatBufferResource("[%s]", base_klass->signature_name());
476 goto unexpected;
477 }
478 } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
479 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
480 if (base_oop->is_a(vmClasses::Class_klass())) {
481 if (offset == java_lang_Class::klass_offset()) {
482 klass = java_lang_Class::as_Klass(base_oop());
483 } else if (offset == java_lang_Class::array_klass_offset()) {
484 klass = java_lang_Class::array_klass_acquire(base_oop());
485 } else {
486 base_desc = FormatBufferResource("[Class=%s]", java_lang_Class::as_Klass(base_oop())->signature_name());
487 goto unexpected;
488 }
489 } else {
490 if (!base_oop.is_null()) {
491 base_desc = FormatBufferResource("[%s]", base_oop()->klass()->signature_name());
492 }
493 goto unexpected;
494 }
495 } else if (JVMCIENV->isa_HotSpotMethodData(base_object)) {
496 jlong base_address = (intptr_t) JVMCIENV->asMethodData(base_object);
497 klass = *((Klass**) (intptr_t) (base_address + offset));
498 if (klass == nullptr || !klass->is_loader_alive()) {
499 // Klasses in methodData might be concurrently unloading so return null in that case.
500 return nullptr;
501 }
502 } else {
503 goto unexpected;
504 }
505 } else {
506 goto unexpected;
507 }
508
509 {
510 if (klass == nullptr) {
511 return nullptr;
512 }
513 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
514 return JVMCIENV->get_jobject(result);
515 }
516
517 unexpected:
518 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
519 err_msg("Unexpected arguments: %s%s " JLONG_FORMAT " %s",
520 JVMCIENV->klass_name(base_object), base_desc == nullptr ? "" : base_desc,
521 offset, compressed ? "true" : "false"));
522 }
523
524 C2V_VMENTRY_NULL(jobject, findUniqueConcreteMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method)))
525 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
526 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass));
527 if (holder->is_interface()) {
528 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Interface %s should be handled in Java code", holder->external_name()));
529 }
530 if (method->can_be_statically_bound()) {
531 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Effectively static method %s.%s should be handled in Java code", method->method_holder()->external_name(), method->external_name()));
532 }
533
534 methodHandle ucm;
535 {
536 MutexLocker locker(Compile_lock);
537 ucm = methodHandle(THREAD, Dependencies::find_unique_concrete_method(holder, method()));
538 }
539 JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL);
540 return JVMCIENV->get_jobject(result);
541 C2V_END
542
543 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
544 Klass* klass = UNPACK_PAIR(Klass, klass);
545 if (!klass->is_interface()) {
546 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
547 err_msg("Expected interface type, got %s", klass->external_name()));
548 }
549 InstanceKlass* iklass = InstanceKlass::cast(klass);
550 JVMCIKlassHandle handle(THREAD, iklass->implementor());
551 JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
552 return JVMCIENV->get_jobject(implementor);
553 C2V_END
554
555 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
556 Method* method = UNPACK_PAIR(Method, method);
557 return method->is_ignored_by_security_stack_walk();
558 C2V_END
559
560 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
561 Method* method = UNPACK_PAIR(Method, method);
562 // Skip redefined methods
563 if (method->is_old()) {
564 return false;
565 }
566 return !method->is_not_compilable(CompLevel_full_optimization);
567 C2V_END
568
569 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
570 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
571 return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
572 C2V_END
573
574 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
575 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
576 return CompilerOracle::should_inline(method) || method->force_inline();
577 C2V_END
578
579 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, ARGUMENT_PAIR(accessing_klass), jboolean resolve))
580 JVMCIObject name = JVMCIENV->wrap(jname);
581 const char* str = JVMCIENV->as_utf8_string(name);
582 TempNewSymbol class_name = SymbolTable::new_symbol(str);
583
584 if (class_name->utf8_length() <= 1) {
585 JVMCI_THROW_MSG_0(InternalError, err_msg("Primitive type %s should be handled in Java code", str));
586 }
587
588 JVMCIKlassHandle resolved_klass(THREAD);
589 Klass* accessing_klass = UNPACK_PAIR(Klass, accessing_klass);
590 Handle class_loader;
591 Handle protection_domain;
592 if (accessing_klass != nullptr) {
593 class_loader = Handle(THREAD, accessing_klass->class_loader());
594 protection_domain = Handle(THREAD, accessing_klass->protection_domain());
595 } else {
596 // Use the System class loader
597 class_loader = Handle(THREAD, SystemDictionary::java_system_loader());
598 JVMCIENV->runtime()->initialize(JVMCI_CHECK_NULL);
599 }
600
601 if (resolve) {
602 resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_NULL);
603 if (resolved_klass == nullptr) {
604 JVMCI_THROW_MSG_NULL(ClassNotFoundException, str);
605 }
606 } else {
607 if (Signature::has_envelope(class_name)) {
608 // This is a name from a signature. Strip off the trimmings.
609 // Call recursive to keep scope of strippedsym.
610 TempNewSymbol strippedsym = Signature::strip_envelope(class_name);
611 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym,
612 class_loader,
613 protection_domain);
614 } else if (Signature::is_array(class_name)) {
615 SignatureStream ss(class_name, false);
616 int ndim = ss.skip_array_prefix();
617 if (ss.type() == T_OBJECT) {
618 Symbol* strippedsym = ss.as_symbol();
619 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym,
620 class_loader,
621 protection_domain);
622 if (!resolved_klass.is_null()) {
623 resolved_klass = resolved_klass->array_klass(ndim, CHECK_NULL);
624 }
625 } else {
626 resolved_klass = TypeArrayKlass::cast(Universe::typeArrayKlassObj(ss.type()))->array_klass(ndim, CHECK_NULL);
627 }
628 } else {
629 resolved_klass = SystemDictionary::find_instance_klass(THREAD, class_name,
630 class_loader,
631 protection_domain);
632 }
633 }
634 JVMCIObject result = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
635 return JVMCIENV->get_jobject(result);
636 C2V_END
637
638 C2V_VMENTRY_NULL(jobject, getArrayType, (JNIEnv* env, jobject, jchar type_char, ARGUMENT_PAIR(klass)))
639 JVMCIKlassHandle array_klass(THREAD);
640 Klass* klass = UNPACK_PAIR(Klass, klass);
641 if (klass == nullptr) {
642 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
643 if (type == T_VOID) {
644 return nullptr;
645 }
646 array_klass = Universe::typeArrayKlassObj(type);
647 if (array_klass == nullptr) {
648 JVMCI_THROW_MSG_NULL(InternalError, err_msg("No array klass for primitive type %s", type2name(type)));
649 }
650 } else {
651 array_klass = klass->array_klass(CHECK_NULL);
652 }
653 JVMCIObject result = JVMCIENV->get_jvmci_type(array_klass, JVMCI_CHECK_NULL);
654 return JVMCIENV->get_jobject(result);
655 C2V_END
656
657 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror))
658 requireInHotSpot("lookupClass", JVMCI_CHECK_NULL);
659 if (mirror == nullptr) {
660 return nullptr;
661 }
662 JVMCIKlassHandle klass(THREAD);
663 klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
664 if (klass == nullptr) {
665 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported");
666 }
667 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
668 return JVMCIENV->get_jobject(result);
669 C2V_END
670
671 C2V_VMENTRY_NULL(jobject, lookupJClass, (JNIEnv* env, jobject, jlong jclass_value))
672 if (jclass_value == 0L) {
673 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass must not be zero");
674 }
675 jclass mirror = reinterpret_cast<jclass>(jclass_value);
676 // Since the jclass_value is passed as a jlong, we perform additional checks to prevent the caller from accidentally
677 // sending a value that is not a JNI handle.
678 if (JNIHandles::handle_type(thread, mirror) == JNIInvalidRefType) {
679 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass is not a valid JNI reference");
680 }
681 oop obj = JNIHandles::resolve(mirror);
682 if (!java_lang_Class::is_instance(obj)) {
683 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass must be a reference to the Class object");
684 }
685 JVMCIKlassHandle klass(THREAD, java_lang_Class::as_Klass(obj));
686 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
687 return JVMCIENV->get_jobject(result);
688 C2V_END
689
690 C2V_VMENTRY_NULL(jobject, getUncachedStringInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
691 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
692 constantTag tag = cp->tag_at(index);
693 if (!tag.is_string()) {
694 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
695 }
696 oop obj = cp->uncached_string_at(index, CHECK_NULL);
697 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
698 C2V_END
699
700 C2V_VMENTRY_NULL(jobject, lookupConstantInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint cp_index, bool resolve))
701 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
702 oop obj;
703 if (!resolve) {
704 bool found_it;
705 obj = cp->find_cached_constant_at(cp_index, found_it, CHECK_NULL);
706 if (!found_it) {
707 return nullptr;
708 }
709 } else {
710 obj = cp->resolve_possibly_cached_constant_at(cp_index, CHECK_NULL);
711 }
712 constantTag tag = cp->tag_at(cp_index);
713 if (tag.is_dynamic_constant()) {
714 if (obj == nullptr) {
715 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
716 }
717 BasicType bt = Signature::basic_type(cp->uncached_signature_ref_at(cp_index));
718 if (!is_reference_type(bt)) {
719 if (!is_java_primitive(bt)) {
720 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
721 }
722
723 // Convert standard box (e.g. java.lang.Integer) to JVMCI box (e.g. jdk.vm.ci.meta.PrimitiveConstant)
724 jvalue value;
725 jlong raw_value;
726 jchar type_char;
727 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
728 assert(bt2 == bt, "");
729 switch (bt2) {
730 case T_LONG: type_char = 'J'; raw_value = value.j; break;
731 case T_DOUBLE: type_char = 'D'; raw_value = value.j; break;
732 case T_FLOAT: type_char = 'F'; raw_value = value.i; break;
733 case T_INT: type_char = 'I'; raw_value = value.i; break;
734 case T_SHORT: type_char = 'S'; raw_value = value.s; break;
735 case T_BYTE: type_char = 'B'; raw_value = value.b; break;
736 case T_CHAR: type_char = 'C'; raw_value = value.c; break;
737 case T_BOOLEAN: type_char = 'Z'; raw_value = value.z; break;
738 default: return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
739 }
740
741 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, raw_value, JVMCI_CHECK_NULL);
742 return JVMCIENV->get_jobject(result);
743 }
744 }
745 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
746 C2V_END
747
748 C2V_VMENTRY_NULL(jobjectArray, resolveBootstrapMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
749 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
750 constantTag tag = cp->tag_at(index);
751 bool is_indy = tag.is_invoke_dynamic();
752 bool is_condy = tag.is_dynamic_constant();
753 if (!(is_condy || is_indy)) {
754 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
755 }
756 // Get the indy entry based on CP index
757 int indy_index = -1;
758 for (int i = 0; i < cp->resolved_indy_entries_length(); i++) {
759 if (cp->resolved_indy_entry_at(i)->constant_pool_index() == index) {
760 indy_index = i;
761 }
762 }
763 // Resolve the bootstrap specifier, its name, type, and static arguments
764 BootstrapInfo bootstrap_specifier(cp, index, indy_index);
765 Handle bsm = bootstrap_specifier.resolve_bsm(CHECK_NULL);
766
767 // call java.lang.invoke.MethodHandle::asFixedArity() -> MethodHandle
768 // to get a DirectMethodHandle from which we can then extract a Method*
769 JavaValue result(T_OBJECT);
770 JavaCalls::call_virtual(&result,
771 bsm,
772 vmClasses::MethodHandle_klass(),
773 vmSymbols::asFixedArity_name(),
774 vmSymbols::asFixedArity_signature(),
775 CHECK_NULL);
776 bsm = Handle(THREAD, result.get_oop());
777
778 // Check assumption about getting a DirectMethodHandle
779 if (!java_lang_invoke_DirectMethodHandle::is_instance(bsm())) {
780 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Unexpected MethodHandle subclass: %s", bsm->klass()->external_name()));
781 }
782 // Create return array describing the bootstrap method invocation (BSMI)
783 JVMCIObjectArray bsmi = JVMCIENV->new_Object_array(4, JVMCI_CHECK_NULL);
784
785 // Extract Method* and wrap it in a ResolvedJavaMethod
786 Handle member = Handle(THREAD, java_lang_invoke_DirectMethodHandle::member(bsm()));
787 JVMCIObject bsmi_method = JVMCIENV->get_jvmci_method(methodHandle(THREAD, java_lang_invoke_MemberName::vmtarget(member())), JVMCI_CHECK_NULL);
788 JVMCIENV->put_object_at(bsmi, 0, bsmi_method);
789
790 JVMCIObject bsmi_name = JVMCIENV->create_string(bootstrap_specifier.name(), JVMCI_CHECK_NULL);
791 JVMCIENV->put_object_at(bsmi, 1, bsmi_name);
792
793 Handle type_arg = bootstrap_specifier.type_arg();
794 JVMCIObject bsmi_type = JVMCIENV->get_object_constant(type_arg());
795 JVMCIENV->put_object_at(bsmi, 2, bsmi_type);
796
797 Handle arg_values = bootstrap_specifier.arg_values();
798 if (arg_values.not_null()) {
799 if (!arg_values->is_array()) {
800 JVMCIENV->put_object_at(bsmi, 3, JVMCIENV->get_object_constant(arg_values()));
801 } else if (arg_values->is_objArray()) {
802 objArrayHandle args_array = objArrayHandle(THREAD, (objArrayOop) arg_values());
803 int len = args_array->length();
804 JVMCIObjectArray arguments = JVMCIENV->new_JavaConstant_array(len, JVMCI_CHECK_NULL);
805 JVMCIENV->put_object_at(bsmi, 3, arguments);
806 for (int i = 0; i < len; i++) {
807 oop x = args_array->obj_at(i);
808 if (x != nullptr) {
809 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_object_constant(x));
810 } else {
811 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_JavaConstant_NULL_POINTER());
812 }
813 }
814 } else if (arg_values->is_typeArray()) {
815 typeArrayHandle bsci = typeArrayHandle(THREAD, (typeArrayOop) arg_values());
816 JVMCIPrimitiveArray arguments = JVMCIENV->new_intArray(bsci->length(), JVMCI_CHECK_NULL);
817 JVMCIENV->put_object_at(bsmi, 3, arguments);
818 for (int i = 0; i < bsci->length(); i++) {
819 JVMCIENV->put_int_at(arguments, i, bsci->int_at(i));
820 }
821 }
822 }
823 return JVMCIENV->get_jobjectArray(bsmi);
824 C2V_END
825
826 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode))
827 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
828 return cp->name_and_type_ref_index_at(index, (Bytecodes::Code)opcode);
829 C2V_END
830
831 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode))
832 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
833 JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which, (Bytecodes::Code)opcode), JVMCI_CHECK_NULL);
834 return JVMCIENV->get_jobject(sym);
835 C2V_END
836
837 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode))
838 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
839 JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which, (Bytecodes::Code)opcode), JVMCI_CHECK_NULL);
840 return JVMCIENV->get_jobject(sym);
841 C2V_END
842
843 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode))
844 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
845 return cp->klass_ref_index_at(index, (Bytecodes::Code)opcode);
846 C2V_END
847
848 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
849 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
850 Klass* klass = cp->klass_at(index, CHECK_NULL);
851 JVMCIKlassHandle resolved_klass(THREAD, klass);
852 if (resolved_klass->is_instance_klass()) {
853 InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL);
854 if (!InstanceKlass::cast(resolved_klass())->is_linked()) {
855 // link_class() should not return here if there is an issue.
856 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name()));
857 }
858 }
859 JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
860 return JVMCIENV->get_jobject(klassObject);
861 C2V_END
862
863 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
864 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
865 Klass* loading_klass = cp->pool_holder();
866 bool is_accessible = false;
867 JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass));
868 Symbol* symbol = nullptr;
869 if (klass.is_null()) {
870 constantTag tag = cp->tag_at(index);
871 if (tag.is_klass()) {
872 // The klass has been inserted into the constant pool
873 // very recently.
874 klass = cp->resolved_klass_at(index);
875 } else if (tag.is_symbol()) {
876 symbol = cp->symbol_at(index);
877 } else {
878 assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag");
879 symbol = cp->klass_name_at(index);
880 }
881 }
882 JVMCIObject result;
883 if (!klass.is_null()) {
884 result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
885 } else {
886 result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL);
887 }
888 return JVMCIENV->get_jobject(result);
889 C2V_END
890
891 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
892 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
893 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
894 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop));
895 C2V_END
896
897 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jbyte opcode, ARGUMENT_PAIR(caller)))
898 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
899 methodHandle caller(THREAD, UNPACK_PAIR(Method, caller));
900 InstanceKlass* pool_holder = cp->pool_holder();
901 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
902 methodHandle method(THREAD, JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder));
903 JFR_ONLY(if (method.not_null()) Jfr::on_resolution(caller(), method(), CHECK_NULL);)
904 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
905 return JVMCIENV->get_jobject(result);
906 C2V_END
907
908 C2V_VMENTRY_0(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
909 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
910 return cp->remap_instruction_operand_from_cache(index);
911 C2V_END
912
913 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, ARGUMENT_PAIR(method), jbyte opcode, jintArray info_handle))
914 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
915 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
916 fieldDescriptor fd;
917 methodHandle mh(THREAD, UNPACK_PAIR(Method, method));
918 LinkInfo link_info(cp, index, mh, code, CHECK_NULL);
919 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_NULL);
920 JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle);
921 if (info.is_null() || JVMCIENV->get_length(info) != 4) {
922 JVMCI_ERROR_NULL("info must not be null and have a length of 4");
923 }
924 JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int());
925 JVMCIENV->put_int_at(info, 1, fd.offset());
926 JVMCIENV->put_int_at(info, 2, fd.index());
927 JVMCIENV->put_int_at(info, 3, fd.field_flags().as_uint());
928 JVMCIKlassHandle handle(THREAD, fd.field_holder());
929 JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
930 return JVMCIENV->get_jobject(field_holder);
931 C2V_END
932
933 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method)))
934 Klass* klass = UNPACK_PAIR(Klass, klass);
935 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
936 InstanceKlass* holder = method->method_holder();
937 if (klass->is_interface()) {
938 JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name()));
939 }
940 if (!holder->is_interface()) {
941 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()));
942 }
943 if (!klass->is_instance_klass()) {
944 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
945 }
946 if (!InstanceKlass::cast(klass)->is_linked()) {
947 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name()));
948 }
949 if (!klass->is_subtype_of(holder)) {
950 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s does not implement interface %s", klass->external_name(), holder->external_name()));
951 }
952 return LinkResolver::vtable_index_of_interface_method(klass, method);
953 C2V_END
954
955 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(receiver), ARGUMENT_PAIR(method), ARGUMENT_PAIR(caller)))
956 Klass* recv_klass = UNPACK_PAIR(Klass, receiver);
957 Klass* caller_klass = UNPACK_PAIR(Klass, caller);
958 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
959
960 Klass* resolved = method->method_holder();
961 Symbol* h_name = method->name();
962 Symbol* h_signature = method->signature();
963
964 if (MethodHandles::is_signature_polymorphic_method(method())) {
965 // Signature polymorphic methods are already resolved, JVMCI just returns null in this case.
966 return nullptr;
967 }
968
969 if (method->name() == vmSymbols::clone_name() &&
970 resolved == vmClasses::Object_klass() &&
971 recv_klass->is_array_klass()) {
972 // Resolution of the clone method on arrays always returns Object.clone even though that method
973 // has protected access. There's some trickery in the access checking to make this all work out
974 // so it's necessary to pass in the array class as the resolved class to properly trigger this.
975 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See
976 // LinkResolver::check_method_accessability for the matching logic.
977 resolved = recv_klass;
978 }
979
980 LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
981 Method* m = nullptr;
982 // Only do exact lookup if receiver klass has been linked. Otherwise,
983 // the vtable has not been setup, and the LinkResolver will fail.
984 if (recv_klass->is_array_klass() ||
985 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
986 if (resolved->is_interface()) {
987 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
988 } else {
989 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
990 }
991 }
992
993 if (m == nullptr) {
994 // Return null if there was a problem with lookup (uninitialized class, etc.)
995 return nullptr;
996 }
997
998 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, m), JVMCI_CHECK_NULL);
999 return JVMCIENV->get_jobject(result);
1000 C2V_END
1001
1002 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1003 Klass* klass = UNPACK_PAIR(Klass, klass);
1004 assert(klass != nullptr, "method must not be called for primitive types");
1005 if (!klass->is_instance_klass()) {
1006 return false;
1007 }
1008 InstanceKlass* iklass = InstanceKlass::cast(klass);
1009 return Dependencies::find_finalizable_subclass(iklass) != nullptr;
1010 C2V_END
1011
1012 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1013 Klass* klass = UNPACK_PAIR(Klass, klass);
1014 if (!klass->is_instance_klass()) {
1015 return nullptr;
1016 }
1017 InstanceKlass* iklass = InstanceKlass::cast(klass);
1018 methodHandle clinit(THREAD, iklass->class_initializer());
1019 JVMCIObject result = JVMCIENV->get_jvmci_method(clinit, JVMCI_CHECK_NULL);
1020 return JVMCIENV->get_jobject(result);
1021 C2V_END
1022
1023 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr))
1024 address target_addr = (address) addr;
1025 if (target_addr != 0x0) {
1026 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
1027 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
1028 return MAX2(ABS(off_low), ABS(off_high));
1029 }
1030 return -1;
1031 C2V_END
1032
1033 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1034 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1035 method->set_is_not_c1_compilable();
1036 method->set_is_not_c2_compilable();
1037 method->set_dont_inline(true);
1038 C2V_END
1039
1040 C2V_VMENTRY_0(jint, getInstallCodeFlags, (JNIEnv *env, jobject))
1041 int flags = 0;
1042 #ifndef PRODUCT
1043 flags |= 0x0001; // VM will install block comments
1044 flags |= 0x0004; // Enable HotSpotJVMCIRuntime.Option.CodeSerializationTypeInfo if not explicitly set
1045 #endif
1046 if (JvmtiExport::can_hotswap_or_post_breakpoint()) {
1047 // VM needs to track method dependencies
1048 flags |= 0x0002;
1049 }
1050 return flags;
1051 C2V_END
1052
1053 C2V_VMENTRY_0(jint, installCode0, (JNIEnv *env, jobject,
1054 jlong compiled_code_buffer,
1055 jlong serialization_ns,
1056 bool with_type_info,
1057 jobject compiled_code,
1058 jobjectArray object_pool,
1059 jobject installed_code,
1060 jlong failed_speculations_address,
1061 jbyteArray speculations_obj))
1062 HandleMark hm(THREAD);
1063 JNIHandleMark jni_hm(thread);
1064
1065 JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
1066 objArrayHandle object_pool_handle(thread, JVMCIENV->is_hotspot() ? (objArrayOop) JNIHandles::resolve(object_pool) : nullptr);
1067
1068 CodeBlob* cb = nullptr;
1069 JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code);
1070 JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj);
1071
1072 int speculations_len = JVMCIENV->get_length(speculations_handle);
1073 char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len);
1074 JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len);
1075
1076 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR);
1077 JVMCICompiler::CodeInstallStats* stats = compiler->code_install_stats(!thread->is_Compiler_thread());
1078 elapsedTimer *timer = stats->timer();
1079 timer->add_nanoseconds(serialization_ns);
1080 TraceTime install_time("installCode", timer);
1081
1082 CodeInstaller installer(JVMCIENV);
1083
1084 JVMCI::CodeInstallResult result = installer.install(compiler,
1085 compiled_code_buffer,
1086 with_type_info,
1087 compiled_code_handle,
1088 object_pool_handle,
1089 cb,
1090 installed_code_handle,
1091 (FailedSpeculation**)(address) failed_speculations_address,
1092 speculations,
1093 speculations_len,
1094 JVMCI_CHECK_0);
1095
1096 if (PrintCodeCacheOnCompilation) {
1097 stringStream s;
1098 // Dump code cache into a buffer before locking the tty,
1099 {
1100 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
1101 CodeCache::print_summary(&s, false);
1102 }
1103 ttyLocker ttyl;
1104 tty->print_raw_cr(s.freeze());
1105 }
1106
1107 if (result != JVMCI::ok) {
1108 assert(cb == nullptr, "should be");
1109 } else {
1110 stats->on_install(cb);
1111 if (installed_code_handle.is_non_null()) {
1112 if (cb->is_nmethod()) {
1113 assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type");
1114 // Clear the link to an old nmethod first
1115 JVMCIObject nmethod_mirror = installed_code_handle;
1116 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, true, JVMCI_CHECK_0);
1117 } else {
1118 assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type");
1119 }
1120 // Initialize the link to the new code blob
1121 JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0);
1122 }
1123 }
1124 return result;
1125 C2V_END
1126
1127 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject))
1128 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK);
1129 CompilerStatistics* stats = compiler->stats();
1130 stats->_standard.reset();
1131 stats->_osr.reset();
1132 C2V_END
1133
1134 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode))
1135 HandleMark hm(THREAD);
1136
1137 if (installedCode == nullptr) {
1138 JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null");
1139 }
1140
1141 JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode);
1142 CodeBlob* cb = JVMCIENV->get_code_blob(installedCodeObject);
1143 if (cb == nullptr) {
1144 return nullptr;
1145 }
1146
1147 // We don't want the stringStream buffer to resize during disassembly as it
1148 // uses scoped resource memory. If a nested function called during disassembly uses
1149 // a ResourceMark and the buffer expands within the scope of the mark,
1150 // the buffer becomes garbage when that scope is exited. Experience shows that
1151 // the disassembled code is typically about 10x the code size so a fixed buffer
1152 // sized to 20x code size plus a fixed amount for header info should be sufficient.
1153 int bufferSize = cb->code_size() * 20 + 1024;
1154 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
1155 stringStream st(buffer, bufferSize);
1156 Disassembler::decode(cb, &st);
1157 if (st.size() <= 0) {
1158 return nullptr;
1159 }
1160
1161 JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL);
1162 return JVMCIENV->get_jobject(result);
1163 C2V_END
1164
1165 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int bci))
1166 HandleMark hm(THREAD);
1167
1168 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1169 JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL);
1170 return JVMCIENV->get_jobject(element);
1171 C2V_END
1172
1173 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod))
1174 // The incoming arguments array would have to contain JavaConstants instead of regular objects
1175 // and the return value would have to be wrapped as a JavaConstant.
1176 requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL);
1177
1178 HandleMark hm(THREAD);
1179
1180 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1181 nmethod* nm = JVMCIENV->get_nmethod(nmethod_mirror);
1182 if (nm == nullptr || !nm->is_in_use()) {
1183 JVMCI_THROW_NULL(InvalidInstalledCodeException);
1184 }
1185 methodHandle mh(THREAD, nm->method());
1186 Symbol* signature = mh->signature();
1187 JavaCallArguments jca(mh->size_of_parameters());
1188
1189 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
1190 JavaValue result(jap.return_type());
1191 jca.set_alternative_target(Handle(THREAD, JNIHandles::resolve(nmethod_mirror.as_jobject())));
1192 JavaCalls::call(&result, mh, &jca, CHECK_NULL);
1193
1194 if (jap.return_type() == T_VOID) {
1195 return nullptr;
1196 } else if (is_reference_type(jap.return_type())) {
1197 return JNIHandles::make_local(THREAD, result.get_oop());
1198 } else {
1199 jvalue *value = (jvalue *) result.get_value_addr();
1200 // Narrow the value down if required (Important on big endian machines)
1201 switch (jap.return_type()) {
1202 case T_BOOLEAN:
1203 value->z = (jboolean) value->i;
1204 break;
1205 case T_BYTE:
1206 value->b = (jbyte) value->i;
1207 break;
1208 case T_CHAR:
1209 value->c = (jchar) value->i;
1210 break;
1211 case T_SHORT:
1212 value->s = (jshort) value->i;
1213 break;
1214 default:
1215 break;
1216 }
1217 JVMCIObject o = JVMCIENV->create_box(jap.return_type(), value, JVMCI_CHECK_NULL);
1218 return JVMCIENV->get_jobject(o);
1219 }
1220 C2V_END
1221
1222 C2V_VMENTRY_NULL(jlongArray, getLineNumberTable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1223 Method* method = UNPACK_PAIR(Method, method);
1224 if (!method->has_linenumber_table()) {
1225 return nullptr;
1226 }
1227 u2 num_entries = 0;
1228 CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
1229 while (streamForSize.read_pair()) {
1230 num_entries++;
1231 }
1232
1233 CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
1234 JVMCIPrimitiveArray result = JVMCIENV->new_longArray(2 * num_entries, JVMCI_CHECK_NULL);
1235
1236 int i = 0;
1237 jlong value;
1238 while (stream.read_pair()) {
1239 value = ((jlong) stream.bci());
1240 JVMCIENV->put_long_at(result, i, value);
1241 value = ((jlong) stream.line());
1242 JVMCIENV->put_long_at(result, i + 1, value);
1243 i += 2;
1244 }
1245
1246 return (jlongArray) JVMCIENV->get_jobject(result);
1247 C2V_END
1248
1249 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1250 Method* method = UNPACK_PAIR(Method, method);
1251 if (!method->has_localvariable_table()) {
1252 return 0;
1253 }
1254 return (jlong) (address) method->localvariable_table_start();
1255 C2V_END
1256
1257 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1258 Method* method = UNPACK_PAIR(Method, method);
1259 return method->localvariable_table_length();
1260 C2V_END
1261
1262 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1263 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1264 MethodCounters* mcs = method->method_counters();
1265 if (mcs != nullptr) {
1266 mcs->clear_counters();
1267 }
1268 NOT_PRODUCT(method->set_compiled_invocation_count(0));
1269
1270 CompiledMethod* code = method->code();
1271 if (code != nullptr) {
1272 code->make_not_entrant();
1273 }
1274
1275 MethodData* method_data = method->method_data();
1276 if (method_data == nullptr) {
1277 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
1278 method_data = MethodData::allocate(loader_data, method, CHECK);
1279 method->set_method_data(method_data);
1280 } else {
1281 method_data->initialize();
1282 }
1283 C2V_END
1284
1285
1286 C2V_VMENTRY(void, invalidateHotSpotNmethod, (JNIEnv* env, jobject, jobject hs_nmethod, jboolean deoptimize))
1287 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1288 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, deoptimize, JVMCI_CHECK);
1289 C2V_END
1290
1291 C2V_VMENTRY_NULL(jlongArray, collectCounters, (JNIEnv* env, jobject))
1292 // Returns a zero length array if counters aren't enabled
1293 JVMCIPrimitiveArray array = JVMCIENV->new_longArray(JVMCICounterSize, JVMCI_CHECK_NULL);
1294 if (JVMCICounterSize > 0) {
1295 jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize);
1296 JavaThread::collect_counters(temp_array, JVMCICounterSize);
1297 JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize);
1298 }
1299 return (jlongArray) JVMCIENV->get_jobject(array);
1300 C2V_END
1301
1302 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject))
1303 return (jint) JVMCICounterSize;
1304 C2V_END
1305
1306 C2V_VMENTRY_0(jboolean, setCountersSize, (JNIEnv* env, jobject, jint new_size))
1307 return JavaThread::resize_all_jvmci_counters(new_size);
1308 C2V_END
1309
1310 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int entry_bci))
1311 HandleMark hm(THREAD);
1312 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1313 if (method.is_null()) {
1314 JVMCI_THROW_0(NullPointerException);
1315 }
1316 if (entry_bci >= method->code_size() || entry_bci < -1) {
1317 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci));
1318 }
1319 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
1320 C2V_END
1321
1322
1323 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong method_data_pointer))
1324 MethodData* mdo = (MethodData*) method_data_pointer;
1325 return mdo != nullptr && mdo->is_mature();
1326 C2V_END
1327
1328 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int entry_bci, int comp_level))
1329 Method* method = UNPACK_PAIR(Method, method);
1330 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != nullptr;
1331 C2V_END
1332
1333 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol))
1334 JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL);
1335 return JVMCIENV->get_jobject(sym);
1336 C2V_END
1337
1338 C2V_VMENTRY_NULL(jobject, getSignatureName, (JNIEnv* env, jobject, jlong klass_pointer))
1339 Klass* klass = UNPACK_PAIR(Klass, klass);
1340 JVMCIObject signature = JVMCIENV->create_string(klass->signature_name(), JVMCI_CHECK_NULL);
1341 return JVMCIENV->get_jobject(signature);
1342 C2V_END
1343
1344 /*
1345 * Used by matches() to convert a ResolvedJavaMethod[] to an array of Method*.
1346 */
1347 GrowableArray<Method*>* init_resolved_methods(jobjectArray methods, JVMCIEnv* JVMCIENV) {
1348 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1349 GrowableArray<Method*>* resolved_methods = new GrowableArray<Method*>(methods_oop->length());
1350 for (int i = 0; i < methods_oop->length(); i++) {
1351 oop resolved = methods_oop->obj_at(i);
1352 Method* resolved_method = nullptr;
1353 if (resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) {
1354 resolved_method = HotSpotJVMCI::asMethod(JVMCIENV, resolved);
1355 }
1356 resolved_methods->append(resolved_method);
1357 }
1358 return resolved_methods;
1359 }
1360
1361 /*
1362 * Used by c2v_iterateFrames to check if `method` matches one of the ResolvedJavaMethods in the `methods` array.
1363 * The ResolvedJavaMethod[] array is converted to a Method* array that is then cached in the resolved_methods_ref in/out parameter.
1364 * In case of a match, the matching ResolvedJavaMethod is returned in matched_jvmci_method_ref.
1365 */
1366 bool matches(jobjectArray methods, Method* method, GrowableArray<Method*>** resolved_methods_ref, Handle* matched_jvmci_method_ref, Thread* THREAD, JVMCIEnv* JVMCIENV) {
1367 GrowableArray<Method*>* resolved_methods = *resolved_methods_ref;
1368 if (resolved_methods == nullptr) {
1369 resolved_methods = init_resolved_methods(methods, JVMCIENV);
1370 *resolved_methods_ref = resolved_methods;
1371 }
1372 assert(method != nullptr, "method should not be null");
1373 assert(resolved_methods->length() == ((objArrayOop) JNIHandles::resolve(methods))->length(), "arrays must have the same length");
1374 for (int i = 0; i < resolved_methods->length(); i++) {
1375 Method* m = resolved_methods->at(i);
1376 if (m == method) {
1377 *matched_jvmci_method_ref = Handle(THREAD, ((objArrayOop) JNIHandles::resolve(methods))->obj_at(i));
1378 return true;
1379 }
1380 }
1381 return false;
1382 }
1383
1384 /*
1385 * Resolves an interface call to a concrete method handle.
1386 */
1387 methodHandle resolve_interface_call(Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
1388 CallInfo callinfo;
1389 Handle receiver = args->receiver();
1390 Klass* recvrKlass = receiver.is_null() ? (Klass*)nullptr : receiver->klass();
1391 LinkInfo link_info(spec_klass, name, signature);
1392 LinkResolver::resolve_interface_call(
1393 callinfo, receiver, recvrKlass, link_info, true, CHECK_(methodHandle()));
1394 methodHandle method(THREAD, callinfo.selected_method());
1395 assert(method.not_null(), "should have thrown exception");
1396 return method;
1397 }
1398
1399 /*
1400 * Used by c2v_iterateFrames to make a new vframeStream at the given compiled frame id (stack pointer) and vframe id.
1401 */
1402 void resync_vframestream_to_compiled_frame(vframeStream& vfst, intptr_t* stack_pointer, int vframe_id, JavaThread* thread, TRAPS) {
1403 vfst = vframeStream(thread);
1404 while (vfst.frame_id() != stack_pointer && !vfst.at_end()) {
1405 vfst.next();
1406 }
1407 if (vfst.frame_id() != stack_pointer) {
1408 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1409 }
1410 if (vfst.is_interpreted_frame()) {
1411 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1412 }
1413 while (vfst.vframe_id() != vframe_id) {
1414 if (vfst.at_end()) {
1415 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt")
1416 }
1417 vfst.next();
1418 assert(!vfst.is_interpreted_frame(), "Wrong frame type");
1419 }
1420 }
1421
1422 /*
1423 * Used by c2v_iterateFrames. Returns an array of any unallocated scope objects or null if none.
1424 */
1425 GrowableArray<ScopeValue*>* get_unallocated_objects_or_null(GrowableArray<ScopeValue*>* scope_objects) {
1426 GrowableArray<ScopeValue*>* unallocated = nullptr;
1427 for (int i = 0; i < scope_objects->length(); i++) {
1428 ObjectValue* sv = (ObjectValue*) scope_objects->at(i);
1429 if (sv->value().is_null()) {
1430 if (unallocated == nullptr) {
1431 unallocated = new GrowableArray<ScopeValue*>(scope_objects->length());
1432 }
1433 unallocated->append(sv);
1434 }
1435 }
1436 return unallocated;
1437 }
1438
1439 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
1440
1441 if (!thread->has_last_Java_frame()) {
1442 return nullptr;
1443 }
1444 Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
1445
1446 requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL);
1447
1448 HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1449
1450 vframeStream vfst(thread);
1451 jobjectArray methods = initial_methods;
1452 methodHandle visitor_method;
1453 GrowableArray<Method*>* resolved_methods = nullptr;
1454
1455 while (!vfst.at_end()) { // frame loop
1456 bool realloc_called = false;
1457 intptr_t* frame_id = vfst.frame_id();
1458
1459 // Previous compiledVFrame of this frame; use with at_scope() to reuse scope object pool.
1460 compiledVFrame* prev_cvf = nullptr;
1461
1462 for (; !vfst.at_end() && vfst.frame_id() == frame_id; vfst.next()) { // vframe loop
1463 int frame_number = 0;
1464 Method *method = vfst.method();
1465 int bci = vfst.bci();
1466
1467 Handle matched_jvmci_method;
1468 if (methods == nullptr || matches(methods, method, &resolved_methods, &matched_jvmci_method, THREAD, JVMCIENV)) {
1469 if (initialSkip > 0) {
1470 initialSkip--;
1471 continue;
1472 }
1473 javaVFrame* vf;
1474 if (prev_cvf != nullptr && prev_cvf->frame_pointer()->id() == frame_id) {
1475 assert(prev_cvf->is_compiled_frame(), "expected compiled Java frame");
1476 vf = prev_cvf->at_scope(vfst.decode_offset(), vfst.vframe_id());
1477 } else {
1478 vf = vfst.asJavaVFrame();
1479 }
1480
1481 StackValueCollection* locals = nullptr;
1482 typeArrayHandle localIsVirtual_h;
1483 if (vf->is_compiled_frame()) {
1484 // compiled method frame
1485 compiledVFrame* cvf = compiledVFrame::cast(vf);
1486
1487 ScopeDesc* scope = cvf->scope();
1488 // native wrappers do not have a scope
1489 if (scope != nullptr && scope->objects() != nullptr) {
1490 prev_cvf = cvf;
1491
1492 GrowableArray<ScopeValue*>* objects = nullptr;
1493 if (!realloc_called) {
1494 objects = scope->objects();
1495 } else {
1496 // some object might already have been re-allocated, only reallocate the non-allocated ones
1497 objects = get_unallocated_objects_or_null(scope->objects());
1498 }
1499
1500 if (objects != nullptr) {
1501 RegisterMap reg_map(vf->register_map());
1502 bool realloc_failures = Deoptimization::realloc_objects(thread, vf->frame_pointer(), ®_map, objects, CHECK_NULL);
1503 Deoptimization::reassign_fields(vf->frame_pointer(), ®_map, objects, realloc_failures, false, CHECK_NULL);
1504 realloc_called = true;
1505 }
1506
1507 GrowableArray<ScopeValue*>* local_values = scope->locals();
1508 for (int i = 0; i < local_values->length(); i++) {
1509 ScopeValue* value = local_values->at(i);
1510 assert(!value->is_object_merge(), "Should not be.");
1511 if (value->is_object()) {
1512 if (localIsVirtual_h.is_null()) {
1513 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1514 localIsVirtual_h = typeArrayHandle(THREAD, array_oop);
1515 }
1516 localIsVirtual_h->bool_at_put(i, true);
1517 }
1518 }
1519 }
1520
1521 locals = cvf->locals();
1522 frame_number = cvf->vframe_id();
1523 } else {
1524 // interpreted method frame
1525 interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1526
1527 locals = ivf->locals();
1528 }
1529 assert(bci == vf->bci(), "wrong bci");
1530 assert(method == vf->method(), "wrong method");
1531
1532 Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1533 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), bci);
1534 if (matched_jvmci_method.is_null()) {
1535 methodHandle mh(THREAD, method);
1536 JVMCIObject jvmci_method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1537 matched_jvmci_method = Handle(THREAD, JNIHandles::resolve(jvmci_method.as_jobject()));
1538 }
1539 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), matched_jvmci_method());
1540 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), localIsVirtual_h());
1541
1542 HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM));
1543 HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) frame_id);
1544 HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number);
1545
1546 // initialize the locals array
1547 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1548 objArrayHandle array(THREAD, array_oop);
1549 for (int i = 0; i < locals->size(); i++) {
1550 StackValue* var = locals->at(i);
1551 if (var->type() == T_OBJECT) {
1552 array->obj_at_put(i, locals->at(i)->get_obj()());
1553 }
1554 }
1555 HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array());
1556 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE);
1557
1558 JavaValue result(T_OBJECT);
1559 JavaCallArguments args(visitor);
1560 if (visitor_method.is_null()) {
1561 visitor_method = resolve_interface_call(HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL);
1562 }
1563
1564 args.push_oop(frame_reference);
1565 JavaCalls::call(&result, visitor_method, &args, CHECK_NULL);
1566 if (result.get_oop() != nullptr) {
1567 return JNIHandles::make_local(thread, result.get_oop());
1568 }
1569 if (methods == initial_methods) {
1570 methods = match_methods;
1571 if (resolved_methods != nullptr && JNIHandles::resolve(match_methods) != JNIHandles::resolve(initial_methods)) {
1572 resolved_methods = nullptr;
1573 }
1574 }
1575 assert(initialSkip == 0, "There should be no match before initialSkip == 0");
1576 if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) {
1577 // the frame has been deoptimized, we need to re-synchronize the frame and vframe
1578 prev_cvf = nullptr;
1579 intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference());
1580 resync_vframestream_to_compiled_frame(vfst, stack_pointer, frame_number, thread, CHECK_NULL);
1581 }
1582 }
1583 } // end of vframe loop
1584 } // end of frame loop
1585
1586 // the end was reached without finding a matching method
1587 return nullptr;
1588 C2V_END
1589
1590 C2V_VMENTRY_0(int, decodeIndyIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint encoded_indy_index, jboolean resolve))
1591 if (!ConstantPool::is_invokedynamic_index(encoded_indy_index)) {
1592 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("not an encoded indy index %d", encoded_indy_index));
1593 }
1594
1595 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1596 CallInfo callInfo;
1597 int indy_index = cp->decode_invokedynamic_index(encoded_indy_index);
1598 if (resolve) {
1599 LinkResolver::resolve_invoke(callInfo, Handle(), cp, encoded_indy_index, Bytecodes::_invokedynamic, CHECK_0);
1600 cp->cache()->set_dynamic_call(callInfo, indy_index);
1601 }
1602 return cp->resolved_indy_entry_at(indy_index)->constant_pool_index();
1603 C2V_END
1604
1605 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
1606 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1607 Klass* holder = cp->klass_ref_at(index, Bytecodes::_invokehandle, CHECK);
1608 Symbol* name = cp->name_ref_at(index, Bytecodes::_invokehandle);
1609 if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1610 CallInfo callInfo;
1611 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1612 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1613 cp_cache_entry->set_method_handle(cp, callInfo);
1614 }
1615 C2V_END
1616
1617 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
1618 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1619 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1620 if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) {
1621 // MethodHandle.invoke* --> LambdaForm?
1622 ResourceMark rm;
1623
1624 LinkInfo link_info(cp, index, Bytecodes::_invokehandle, CATCH);
1625
1626 Klass* resolved_klass = link_info.resolved_klass();
1627
1628 Symbol* name_sym = cp->name_ref_at(index, Bytecodes::_invokehandle);
1629
1630 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1631 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1632
1633 methodHandle adapter_method(THREAD, cp_cache_entry->f1_as_method());
1634
1635 methodHandle resolved_method(adapter_method);
1636
1637 // Can we treat it as a regular invokevirtual?
1638 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1639 vmassert(!resolved_method->is_static(),"!");
1640 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1641 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1642 vmassert(cp_cache_entry->appendix_if_resolved(cp) == nullptr, "!");
1643
1644 methodHandle m(THREAD, LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1645 vmassert(m == resolved_method, "!!");
1646 return -1;
1647 }
1648
1649 return Bytecodes::_invokevirtual;
1650 }
1651 if (cp->is_invokedynamic_index(index)) {
1652 if (cp->resolved_indy_entry_at(cp->decode_cpcache_index(index))->is_resolved()) {
1653 return Bytecodes::_invokedynamic;
1654 }
1655 }
1656 return -1;
1657 C2V_END
1658
1659
1660 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject))
1661 JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL);
1662 JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL);
1663 JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL);
1664 JVMCIENV->put_object_at(holders, 0, mh);
1665 JVMCIENV->put_object_at(holders, 1, vh);
1666 return JVMCIENV->get_jobject(holders);
1667 C2V_END
1668
1669 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject))
1670 //see compute_recording_non_safepoints in debugInfroRec.cpp
1671 if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1672 return true;
1673 }
1674 return DebugNonSafepoints;
1675 C2V_END
1676
1677 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1678 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate))
1679 JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame);
1680 if (hs_frame.is_null()) {
1681 JVMCI_THROW_MSG(NullPointerException, "stack frame is null");
1682 }
1683
1684 requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK);
1685
1686 JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK);
1687
1688 // look for the given stack frame
1689 StackFrameStream fst(thread, false /* update */, true /* process_frames */);
1690 intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame);
1691 while (fst.current()->id() != stack_pointer && !fst.is_done()) {
1692 fst.next();
1693 }
1694 if (fst.current()->id() != stack_pointer) {
1695 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found");
1696 }
1697
1698 if (invalidate) {
1699 if (!fst.current()->is_compiled_frame()) {
1700 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1701 }
1702 assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
1703 ((nmethod*) fst.current()->cb())->make_not_entrant();
1704 }
1705 Deoptimization::deoptimize(thread, *fst.current(), Deoptimization::Reason_none);
1706 // look for the frame again as it has been updated by deopt (pc, deopt state...)
1707 StackFrameStream fstAfterDeopt(thread, true /* update */, true /* process_frames */);
1708 while (fstAfterDeopt.current()->id() != stack_pointer && !fstAfterDeopt.is_done()) {
1709 fstAfterDeopt.next();
1710 }
1711 if (fstAfterDeopt.current()->id() != stack_pointer) {
1712 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found after deopt");
1713 }
1714
1715 vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1716 if (!vf->is_compiled_frame()) {
1717 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1718 }
1719
1720 GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1721 while (true) {
1722 assert(vf->is_compiled_frame(), "Wrong frame type");
1723 virtualFrames->push(compiledVFrame::cast(vf));
1724 if (vf->is_top()) {
1725 break;
1726 }
1727 vf = vf->sender();
1728 }
1729
1730 int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame);
1731 if (last_frame_number >= virtualFrames->length()) {
1732 JVMCI_THROW_MSG(IllegalStateException, "invalid frame number");
1733 }
1734
1735 // Reallocate the non-escaping objects and restore their fields.
1736 assert (virtualFrames->at(last_frame_number)->scope() != nullptr,"invalid scope");
1737 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1738
1739 if (objects == nullptr) {
1740 // no objects to materialize
1741 return;
1742 }
1743
1744 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK);
1745 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false, THREAD);
1746
1747 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1748 compiledVFrame* cvf = virtualFrames->at(frame_index);
1749
1750 GrowableArray<ScopeValue*>* scopedValues = cvf->scope()->locals();
1751 StackValueCollection* locals = cvf->locals();
1752 if (locals != nullptr) {
1753 for (int i2 = 0; i2 < locals->size(); i2++) {
1754 StackValue* var = locals->at(i2);
1755 assert(!scopedValues->at(i2)->is_object_merge(), "Should not be.");
1756 if (var->type() == T_OBJECT && scopedValues->at(i2)->is_object()) {
1757 jvalue val;
1758 val.l = cast_from_oop<jobject>(locals->at(i2)->get_obj()());
1759 cvf->update_local(T_OBJECT, i2, val);
1760 }
1761 }
1762 }
1763
1764 GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1765 StackValueCollection* expressions = cvf->expressions();
1766 if (expressions != nullptr) {
1767 for (int i2 = 0; i2 < expressions->size(); i2++) {
1768 StackValue* var = expressions->at(i2);
1769 assert(!scopeExpressions->at(i2)->is_object_merge(), "Should not be.");
1770 if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) {
1771 jvalue val;
1772 val.l = cast_from_oop<jobject>(expressions->at(i2)->get_obj()());
1773 cvf->update_stack(T_OBJECT, i2, val);
1774 }
1775 }
1776 }
1777
1778 GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors();
1779 GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
1780 if (monitors != nullptr) {
1781 for (int i2 = 0; i2 < monitors->length(); i2++) {
1782 cvf->update_monitor(i2, monitors->at(i2));
1783 }
1784 }
1785 }
1786
1787 // all locals are materialized by now
1788 JVMCIENV->set_HotSpotStackFrameReference_localIsVirtual(hs_frame, nullptr);
1789 // update the locals array
1790 JVMCIObjectArray array = JVMCIENV->get_HotSpotStackFrameReference_locals(hs_frame);
1791 StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1792 for (int i = 0; i < locals->size(); i++) {
1793 StackValue* var = locals->at(i);
1794 if (var->type() == T_OBJECT) {
1795 JVMCIENV->put_object_at(array, i, HotSpotJVMCI::wrap(locals->at(i)->get_obj()()));
1796 }
1797 }
1798 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, hs_frame, JNI_TRUE);
1799 C2V_END
1800
1801 // Use of tty does not require the current thread to be attached to the VM
1802 // so no need for a full C2V_VMENTRY transition.
1803 C2V_VMENTRY_PREFIX(void, writeDebugOutput, (JNIEnv* env, jobject, jlong buffer, jint length, bool flush))
1804 if (length <= 8) {
1805 tty->write((char*) &buffer, length);
1806 } else {
1807 tty->write((char*) buffer, length);
1808 }
1809 if (flush) {
1810 tty->flush();
1811 }
1812 C2V_END
1813
1814 // Use of tty does not require the current thread to be attached to the VM
1815 // so no need for a full C2V_VMENTRY transition.
1816 C2V_VMENTRY_PREFIX(void, flushDebugOutput, (JNIEnv* env, jobject))
1817 tty->flush();
1818 C2V_END
1819
1820 C2V_VMENTRY_0(jint, methodDataProfileDataSize, (JNIEnv* env, jobject, jlong method_data_pointer, jint position))
1821 MethodData* mdo = (MethodData*) method_data_pointer;
1822 ProfileData* profile_data = mdo->data_at(position);
1823 if (mdo->is_valid(profile_data)) {
1824 return profile_data->size_in_bytes();
1825 }
1826 // Java code should never directly access the extra data section
1827 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Invalid profile data position %d", position));
1828 C2V_END
1829
1830 C2V_VMENTRY_0(jint, methodDataExceptionSeen, (JNIEnv* env, jobject, jlong method_data_pointer, jint bci))
1831 MethodData* mdo = (MethodData*) method_data_pointer;
1832 MutexLocker mu(mdo->extra_data_lock());
1833 DataLayout* data = mdo->extra_data_base();
1834 DataLayout* end = mdo->args_data_limit();
1835 for (;; data = mdo->next_extra(data)) {
1836 assert(data < end, "moved past end of extra data");
1837 int tag = data->tag();
1838 switch(tag) {
1839 case DataLayout::bit_data_tag: {
1840 BitData* bit_data = (BitData*) data->data_in();
1841 if (bit_data->bci() == bci) {
1842 return bit_data->exception_seen() ? 1 : 0;
1843 }
1844 break;
1845 }
1846 case DataLayout::no_tag:
1847 // There is a free slot so return false since a BitData would have been allocated to record
1848 // true if it had been seen.
1849 return 0;
1850 case DataLayout::arg_info_data_tag:
1851 // The bci wasn't found and there are no free slots to record a trap for this location, so always
1852 // return unknown.
1853 return -1;
1854 }
1855 }
1856 ShouldNotReachHere();
1857 return -1;
1858 C2V_END
1859
1860 C2V_VMENTRY_NULL(jobject, getInterfaces, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1861 Klass* klass = UNPACK_PAIR(Klass, klass);
1862 if (klass == nullptr) {
1863 JVMCI_THROW_0(NullPointerException);
1864 }
1865
1866 if (!klass->is_instance_klass()) {
1867 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
1868 }
1869 InstanceKlass* iklass = InstanceKlass::cast(klass);
1870
1871 // Regular instance klass, fill in all local interfaces
1872 int size = iklass->local_interfaces()->length();
1873 JVMCIObjectArray interfaces = JVMCIENV->new_HotSpotResolvedObjectTypeImpl_array(size, JVMCI_CHECK_NULL);
1874 for (int index = 0; index < size; index++) {
1875 JVMCIKlassHandle klass(THREAD);
1876 Klass* k = iklass->local_interfaces()->at(index);
1877 klass = k;
1878 JVMCIObject type = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
1879 JVMCIENV->put_object_at(interfaces, index, type);
1880 }
1881 return JVMCIENV->get_jobject(interfaces);
1882 C2V_END
1883
1884 C2V_VMENTRY_NULL(jobject, getComponentType, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1885 Klass* klass = UNPACK_PAIR(Klass, klass);
1886 if (klass == nullptr) {
1887 JVMCI_THROW_0(NullPointerException);
1888 }
1889
1890 if (!klass->is_array_klass()) {
1891 return nullptr;
1892 }
1893 oop mirror = klass->java_mirror();
1894 oop component_mirror = java_lang_Class::component_mirror(mirror);
1895 if (component_mirror == nullptr) {
1896 JVMCI_THROW_MSG_0(NullPointerException,
1897 err_msg("Component mirror for array class %s is null", klass->external_name()))
1898 }
1899
1900 Klass* component_klass = java_lang_Class::as_Klass(component_mirror);
1901 if (component_klass != nullptr) {
1902 JVMCIKlassHandle klass_handle(THREAD, component_klass);
1903 JVMCIObject result = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
1904 return JVMCIENV->get_jobject(result);
1905 }
1906 BasicType type = java_lang_Class::primitive_type(component_mirror);
1907 JVMCIObject result = JVMCIENV->get_jvmci_primitive_type(type);
1908 return JVMCIENV->get_jobject(result);
1909 C2V_END
1910
1911 C2V_VMENTRY(void, ensureInitialized, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1912 Klass* klass = UNPACK_PAIR(Klass, klass);
1913 if (klass == nullptr) {
1914 JVMCI_THROW(NullPointerException);
1915 }
1916 if (klass->should_be_initialized()) {
1917 InstanceKlass* k = InstanceKlass::cast(klass);
1918 k->initialize(CHECK);
1919 }
1920 C2V_END
1921
1922 C2V_VMENTRY(void, ensureLinked, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1923 Klass* klass = UNPACK_PAIR(Klass, klass);
1924 if (klass == nullptr) {
1925 JVMCI_THROW(NullPointerException);
1926 }
1927 if (klass->is_instance_klass()) {
1928 InstanceKlass* k = InstanceKlass::cast(klass);
1929 k->link_class(CHECK);
1930 }
1931 C2V_END
1932
1933 C2V_VMENTRY_0(jint, interpreterFrameSize, (JNIEnv* env, jobject, jobject bytecode_frame_handle))
1934 if (bytecode_frame_handle == nullptr) {
1935 JVMCI_THROW_0(NullPointerException);
1936 }
1937
1938 JVMCIObject top_bytecode_frame = JVMCIENV->wrap(bytecode_frame_handle);
1939 JVMCIObject bytecode_frame = top_bytecode_frame;
1940 int size = 0;
1941 int callee_parameters = 0;
1942 int callee_locals = 0;
1943 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1944 int extra_args = method->max_stack() - JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1945
1946 while (bytecode_frame.is_non_null()) {
1947 int locks = JVMCIENV->get_BytecodeFrame_numLocks(bytecode_frame);
1948 int temps = JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1949 bool is_top_frame = (JVMCIENV->equals(bytecode_frame, top_bytecode_frame));
1950 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1951
1952 int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
1953 temps + callee_parameters,
1954 extra_args,
1955 locks,
1956 callee_parameters,
1957 callee_locals,
1958 is_top_frame);
1959 size += frame_size;
1960
1961 callee_parameters = method->size_of_parameters();
1962 callee_locals = method->max_locals();
1963 extra_args = 0;
1964 bytecode_frame = JVMCIENV->get_BytecodePosition_caller(bytecode_frame);
1965 }
1966 return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
1967 C2V_END
1968
1969 C2V_VMENTRY(void, compileToBytecode, (JNIEnv* env, jobject, jobject lambda_form_handle))
1970 Handle lambda_form = JVMCIENV->asConstant(JVMCIENV->wrap(lambda_form_handle), JVMCI_CHECK);
1971 if (lambda_form->is_a(vmClasses::LambdaForm_klass())) {
1972 TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode");
1973 JavaValue result(T_VOID);
1974 JavaCalls::call_special(&result, lambda_form, vmClasses::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK);
1975 } else {
1976 JVMCI_THROW_MSG(IllegalArgumentException,
1977 err_msg("Unexpected type: %s", lambda_form->klass()->external_name()))
1978 }
1979 C2V_END
1980
1981 C2V_VMENTRY_0(jint, getIdentityHashCode, (JNIEnv* env, jobject, jobject object))
1982 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1983 return obj->identity_hash();
1984 C2V_END
1985
1986 C2V_VMENTRY_0(jboolean, isInternedString, (JNIEnv* env, jobject, jobject object))
1987 Handle str = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1988 if (!java_lang_String::is_instance(str())) {
1989 return false;
1990 }
1991 int len;
1992 jchar* name = java_lang_String::as_unicode_string(str(), len, CHECK_false);
1993 return (StringTable::lookup(name, len) != nullptr);
1994 C2V_END
1995
1996
1997 C2V_VMENTRY_NULL(jobject, unboxPrimitive, (JNIEnv* env, jobject, jobject object))
1998 if (object == nullptr) {
1999 JVMCI_THROW_0(NullPointerException);
2000 }
2001 Handle box = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2002 BasicType type = java_lang_boxing_object::basic_type(box());
2003 jvalue result;
2004 if (java_lang_boxing_object::get_value(box(), &result) == T_ILLEGAL) {
2005 return nullptr;
2006 }
2007 JVMCIObject boxResult = JVMCIENV->create_box(type, &result, JVMCI_CHECK_NULL);
2008 return JVMCIENV->get_jobject(boxResult);
2009 C2V_END
2010
2011 C2V_VMENTRY_NULL(jobject, boxPrimitive, (JNIEnv* env, jobject, jobject object))
2012 if (object == nullptr) {
2013 JVMCI_THROW_0(NullPointerException);
2014 }
2015 JVMCIObject box = JVMCIENV->wrap(object);
2016 BasicType type = JVMCIENV->get_box_type(box);
2017 if (type == T_ILLEGAL) {
2018 return nullptr;
2019 }
2020 jvalue value = JVMCIENV->get_boxed_value(type, box);
2021 JavaValue box_result(T_OBJECT);
2022 JavaCallArguments jargs;
2023 Klass* box_klass = nullptr;
2024 Symbol* box_signature = nullptr;
2025 #define BOX_CASE(bt, v, argtype, name) \
2026 case bt: \
2027 jargs.push_##argtype(value.v); \
2028 box_klass = vmClasses::name##_klass(); \
2029 box_signature = vmSymbols::name##_valueOf_signature(); \
2030 break
2031
2032 switch (type) {
2033 BOX_CASE(T_BOOLEAN, z, int, Boolean);
2034 BOX_CASE(T_BYTE, b, int, Byte);
2035 BOX_CASE(T_CHAR, c, int, Character);
2036 BOX_CASE(T_SHORT, s, int, Short);
2037 BOX_CASE(T_INT, i, int, Integer);
2038 BOX_CASE(T_LONG, j, long, Long);
2039 BOX_CASE(T_FLOAT, f, float, Float);
2040 BOX_CASE(T_DOUBLE, d, double, Double);
2041 default:
2042 ShouldNotReachHere();
2043 }
2044 #undef BOX_CASE
2045
2046 JavaCalls::call_static(&box_result,
2047 box_klass,
2048 vmSymbols::valueOf_name(),
2049 box_signature, &jargs, CHECK_NULL);
2050 oop hotspot_box = box_result.get_oop();
2051 JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false);
2052 return JVMCIENV->get_jobject(result);
2053 C2V_END
2054
2055 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2056 Klass* klass = UNPACK_PAIR(Klass, klass);
2057 if (klass == nullptr) {
2058 JVMCI_THROW_0(NullPointerException);
2059 }
2060 if (!klass->is_instance_klass()) {
2061 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
2062 return JVMCIENV->get_jobjectArray(methods);
2063 }
2064
2065 InstanceKlass* iklass = InstanceKlass::cast(klass);
2066 GrowableArray<Method*> constructors_array;
2067 for (int i = 0; i < iklass->methods()->length(); i++) {
2068 Method* m = iklass->methods()->at(i);
2069 if (m->is_object_constructor()) {
2070 constructors_array.append(m);
2071 }
2072 }
2073 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
2074 for (int i = 0; i < constructors_array.length(); i++) {
2075 methodHandle ctor(THREAD, constructors_array.at(i));
2076 JVMCIObject method = JVMCIENV->get_jvmci_method(ctor, JVMCI_CHECK_NULL);
2077 JVMCIENV->put_object_at(methods, i, method);
2078 }
2079 return JVMCIENV->get_jobjectArray(methods);
2080 C2V_END
2081
2082 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2083 Klass* klass = UNPACK_PAIR(Klass, klass);
2084 if (klass == nullptr) {
2085 JVMCI_THROW_0(NullPointerException);
2086 }
2087 if (!klass->is_instance_klass()) {
2088 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
2089 return JVMCIENV->get_jobjectArray(methods);
2090 }
2091
2092 InstanceKlass* iklass = InstanceKlass::cast(klass);
2093 GrowableArray<Method*> methods_array;
2094 for (int i = 0; i < iklass->methods()->length(); i++) {
2095 Method* m = iklass->methods()->at(i);
2096 if (!(m->is_object_constructor() || m->is_class_initializer()) && !m->is_overpass()) {
2097 methods_array.append(m);
2098 }
2099 }
2100 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
2101 for (int i = 0; i < methods_array.length(); i++) {
2102 methodHandle mh(THREAD, methods_array.at(i));
2103 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
2104 JVMCIENV->put_object_at(methods, i, method);
2105 }
2106 return JVMCIENV->get_jobjectArray(methods);
2107 C2V_END
2108
2109 C2V_VMENTRY_NULL(jobjectArray, getDeclaredFieldsInfo, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2110 Klass* klass = UNPACK_PAIR(Klass, klass);
2111 if (klass == nullptr) {
2112 JVMCI_THROW_0(NullPointerException);
2113 }
2114 if (!klass->is_instance_klass()) {
2115 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "not an InstanceKlass");
2116 }
2117 InstanceKlass* iklass = InstanceKlass::cast(klass);
2118 int java_fields, injected_fields;
2119 GrowableArray<FieldInfo>* fields = FieldInfoStream::create_FieldInfoArray(iklass->fieldinfo_stream(), &java_fields, &injected_fields);
2120 JVMCIObjectArray array = JVMCIENV->new_FieldInfo_array(fields->length(), JVMCIENV);
2121 for (int i = 0; i < fields->length(); i++) {
2122 JVMCIObject field_info = JVMCIENV->new_FieldInfo(fields->adr_at(i), JVMCI_CHECK_NULL);
2123 JVMCIENV->put_object_at(array, i, field_info);
2124 }
2125 return array.as_jobject();
2126 C2V_END
2127
2128 static jobject read_field_value(Handle obj, long displacement, jchar type_char, bool is_static, Thread* THREAD, JVMCIEnv* JVMCIENV) {
2129
2130 BasicType basic_type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_NULL);
2131 int basic_type_elemsize = type2aelembytes(basic_type);
2132 if (displacement < 0 || ((size_t) displacement + basic_type_elemsize > HeapWordSize * obj->size())) {
2133 // Reading outside of the object bounds
2134 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading outside object bounds");
2135 }
2136
2137 // Perform basic sanity checks on the read. Primitive reads are permitted to read outside the
2138 // bounds of their fields but object reads must map exactly onto the underlying oop slot.
2139 bool aligned = (displacement % basic_type_elemsize) == 0;
2140 if (!aligned) {
2141 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "read is unaligned");
2142 }
2143 if (basic_type == T_OBJECT) {
2144 if (obj->is_objArray()) {
2145 if (displacement < arrayOopDesc::base_offset_in_bytes(T_OBJECT)) {
2146 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
2147 }
2148 if (displacement + heapOopSize > arrayOopDesc::base_offset_in_bytes(T_OBJECT) + arrayOop(obj())->length() * heapOopSize) {
2149 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading after last array element");
2150 }
2151 if (((displacement - arrayOopDesc::base_offset_in_bytes(T_OBJECT)) % heapOopSize) != 0) {
2152 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "misaligned object read from array");
2153 }
2154 } else if (obj->is_instance()) {
2155 InstanceKlass* klass = InstanceKlass::cast(is_static ? java_lang_Class::as_Klass(obj()) : obj->klass());
2156 fieldDescriptor fd;
2157 if (!klass->find_field_from_offset(displacement, is_static, &fd)) {
2158 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Can't find field at displacement %d in object of type %s", (int) displacement, klass->external_name()));
2159 }
2160 if (fd.field_type() != T_OBJECT && fd.field_type() != T_ARRAY) {
2161 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Field at displacement %d in object of type %s is %s but expected %s", (int) displacement,
2162 klass->external_name(), type2name(fd.field_type()), type2name(basic_type)));
2163 }
2164 } else if (obj->is_typeArray()) {
2165 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Can't read objects from primitive array");
2166 } else {
2167 ShouldNotReachHere();
2168 }
2169 } else {
2170 if (obj->is_objArray()) {
2171 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Reading primitive from object array");
2172 } else if (obj->is_typeArray()) {
2173 if (displacement < arrayOopDesc::base_offset_in_bytes(ArrayKlass::cast(obj->klass())->element_type())) {
2174 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
2175 }
2176 }
2177 }
2178
2179 jlong value = 0;
2180
2181 // Treat all reads as volatile for simplicity as this function can be used
2182 // both for reading Java fields declared as volatile as well as for constant
2183 // folding Unsafe.get* methods with volatile semantics.
2184
2185 switch (basic_type) {
2186 case T_BOOLEAN: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jboolean>(displacement)); break;
2187 case T_BYTE: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jbyte>(displacement)); break;
2188 case T_SHORT: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jshort>(displacement)); break;
2189 case T_CHAR: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jchar>(displacement)); break;
2190 case T_FLOAT:
2191 case T_INT: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jint>(displacement)); break;
2192 case T_DOUBLE:
2193 case T_LONG: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jlong>(displacement)); break;
2194
2195 case T_OBJECT: {
2196 if (displacement == java_lang_Class::component_mirror_offset() && java_lang_Class::is_instance(obj()) &&
2197 (java_lang_Class::as_Klass(obj()) == nullptr || !java_lang_Class::as_Klass(obj())->is_array_klass())) {
2198 // Class.componentType for non-array classes can transiently contain an int[] that's
2199 // used for locking so always return null to mimic Class.getComponentType()
2200 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
2201 }
2202
2203 // Perform the read including any barriers required to make the reference strongly reachable
2204 // since it will be wrapped as a JavaConstant.
2205 oop value = obj->obj_field_access<MO_SEQ_CST | ON_UNKNOWN_OOP_REF>(displacement);
2206
2207 if (value == nullptr) {
2208 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
2209 } else {
2210 if (value != nullptr && !oopDesc::is_oop(value)) {
2211 // Throw an exception to improve debuggability. This check isn't totally reliable because
2212 // is_oop doesn't try to be completety safe but for most invalid values it provides a good
2213 // enough answer. It possible to crash in the is_oop call but that just means the crash happens
2214 // closer to where things went wrong.
2215 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Read bad oop " INTPTR_FORMAT " at offset " JLONG_FORMAT " in object " INTPTR_FORMAT " of type %s",
2216 p2i(value), displacement, p2i(obj()), obj->klass()->external_name()));
2217 }
2218
2219 JVMCIObject result = JVMCIENV->get_object_constant(value);
2220 return JVMCIENV->get_jobject(result);
2221 }
2222 }
2223
2224 default:
2225 ShouldNotReachHere();
2226 }
2227 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, value, JVMCI_CHECK_NULL);
2228 return JVMCIENV->get_jobject(result);
2229 }
2230
2231 C2V_VMENTRY_NULL(jobject, readStaticFieldValue, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), long displacement, jchar type_char))
2232 Klass* klass = UNPACK_PAIR(Klass, klass);
2233 Handle obj(THREAD, klass->java_mirror());
2234 return read_field_value(obj, displacement, type_char, true, THREAD, JVMCIENV);
2235 C2V_END
2236
2237 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, ARGUMENT_PAIR(expected_type), long displacement, jchar type_char))
2238 if (object == nullptr) {
2239 JVMCI_THROW_0(NullPointerException);
2240 }
2241
2242 // asConstant will throw an NPE if a constant contains null
2243 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2244
2245 Klass* expected_klass = UNPACK_PAIR(Klass, expected_type);
2246 if (expected_klass != nullptr) {
2247 InstanceKlass* expected_iklass = InstanceKlass::cast(expected_klass);
2248 if (!obj->is_a(expected_iklass)) {
2249 // Not of the expected type
2250 return nullptr;
2251 }
2252 }
2253 bool is_static = expected_klass == nullptr && java_lang_Class::is_instance(obj()) && displacement >= InstanceMirrorKlass::offset_of_static_fields();
2254 return read_field_value(obj, displacement, type_char, is_static, THREAD, JVMCIENV);
2255 C2V_END
2256
2257 C2V_VMENTRY_0(jboolean, isInstance, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jobject object))
2258 Klass* klass = UNPACK_PAIR(Klass, klass);
2259 if (object == nullptr || klass == nullptr) {
2260 JVMCI_THROW_0(NullPointerException);
2261 }
2262 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2263 return obj->is_a(klass);
2264 C2V_END
2265
2266 C2V_VMENTRY_0(jboolean, isAssignableFrom, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(subklass)))
2267 Klass* klass = UNPACK_PAIR(Klass, klass);
2268 Klass* subklass = UNPACK_PAIR(Klass, subklass);
2269 if (klass == nullptr || subklass == nullptr) {
2270 JVMCI_THROW_0(NullPointerException);
2271 }
2272 return subklass->is_subtype_of(klass);
2273 C2V_END
2274
2275 C2V_VMENTRY_0(jboolean, isTrustedForIntrinsics, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2276 Klass* klass = UNPACK_PAIR(Klass, klass);
2277 if (klass == nullptr) {
2278 JVMCI_THROW_0(NullPointerException);
2279 }
2280 InstanceKlass* ik = InstanceKlass::cast(klass);
2281 if (ik->class_loader_data()->is_boot_class_loader_data() || ik->class_loader_data()->is_platform_class_loader_data()) {
2282 return true;
2283 }
2284 return false;
2285 C2V_END
2286
2287 C2V_VMENTRY_NULL(jobject, asJavaType, (JNIEnv* env, jobject, jobject object))
2288 if (object == nullptr) {
2289 JVMCI_THROW_0(NullPointerException);
2290 }
2291 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2292 if (java_lang_Class::is_instance(obj())) {
2293 if (java_lang_Class::is_primitive(obj())) {
2294 JVMCIObject type = JVMCIENV->get_jvmci_primitive_type(java_lang_Class::primitive_type(obj()));
2295 return JVMCIENV->get_jobject(type);
2296 }
2297 Klass* klass = java_lang_Class::as_Klass(obj());
2298 JVMCIKlassHandle klass_handle(THREAD);
2299 klass_handle = klass;
2300 JVMCIObject type = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
2301 return JVMCIENV->get_jobject(type);
2302 }
2303 return nullptr;
2304 C2V_END
2305
2306
2307 C2V_VMENTRY_NULL(jobject, asString, (JNIEnv* env, jobject, jobject object))
2308 if (object == nullptr) {
2309 JVMCI_THROW_0(NullPointerException);
2310 }
2311 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2312 const char* str = java_lang_String::as_utf8_string(obj());
2313 JVMCIObject result = JVMCIENV->create_string(str, JVMCI_CHECK_NULL);
2314 return JVMCIENV->get_jobject(result);
2315 C2V_END
2316
2317
2318 C2V_VMENTRY_0(jboolean, equals, (JNIEnv* env, jobject, jobject x, jlong xHandle, jobject y, jlong yHandle))
2319 if (x == nullptr || y == nullptr) {
2320 JVMCI_THROW_0(NullPointerException);
2321 }
2322 return JVMCIENV->resolve_oop_handle(xHandle) == JVMCIENV->resolve_oop_handle(yHandle);
2323 C2V_END
2324
2325 C2V_VMENTRY_NULL(jobject, getJavaMirror, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2326 Klass* klass = UNPACK_PAIR(Klass, klass);
2327 if (klass == nullptr) {
2328 JVMCI_THROW_0(NullPointerException);
2329 }
2330 Handle mirror(THREAD, klass->java_mirror());
2331 JVMCIObject result = JVMCIENV->get_object_constant(mirror());
2332 return JVMCIENV->get_jobject(result);
2333 C2V_END
2334
2335
2336 C2V_VMENTRY_0(jint, getArrayLength, (JNIEnv* env, jobject, jobject x))
2337 if (x == nullptr) {
2338 JVMCI_THROW_0(NullPointerException);
2339 }
2340 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2341 if (xobj->klass()->is_array_klass()) {
2342 return arrayOop(xobj())->length();
2343 }
2344 return -1;
2345 C2V_END
2346
2347
2348 C2V_VMENTRY_NULL(jobject, readArrayElement, (JNIEnv* env, jobject, jobject x, int index))
2349 if (x == nullptr) {
2350 JVMCI_THROW_0(NullPointerException);
2351 }
2352 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_NULL);
2353 if (xobj->klass()->is_array_klass()) {
2354 arrayOop array = arrayOop(xobj());
2355 BasicType element_type = ArrayKlass::cast(array->klass())->element_type();
2356 if (index < 0 || index >= array->length()) {
2357 return nullptr;
2358 }
2359 JVMCIObject result;
2360
2361 if (element_type == T_OBJECT) {
2362 result = JVMCIENV->get_object_constant(objArrayOop(xobj())->obj_at(index));
2363 if (result.is_null()) {
2364 result = JVMCIENV->get_JavaConstant_NULL_POINTER();
2365 }
2366 } else {
2367 jvalue value;
2368 switch (element_type) {
2369 case T_DOUBLE: value.d = typeArrayOop(xobj())->double_at(index); break;
2370 case T_FLOAT: value.f = typeArrayOop(xobj())->float_at(index); break;
2371 case T_LONG: value.j = typeArrayOop(xobj())->long_at(index); break;
2372 case T_INT: value.i = typeArrayOop(xobj())->int_at(index); break;
2373 case T_SHORT: value.s = typeArrayOop(xobj())->short_at(index); break;
2374 case T_CHAR: value.c = typeArrayOop(xobj())->char_at(index); break;
2375 case T_BYTE: value.b = typeArrayOop(xobj())->byte_at(index); break;
2376 case T_BOOLEAN: value.z = typeArrayOop(xobj())->byte_at(index) & 1; break;
2377 default: ShouldNotReachHere();
2378 }
2379 result = JVMCIENV->create_box(element_type, &value, JVMCI_CHECK_NULL);
2380 }
2381 assert(!result.is_null(), "must have a value");
2382 return JVMCIENV->get_jobject(result);
2383 }
2384 return nullptr;;
2385 C2V_END
2386
2387
2388 C2V_VMENTRY_0(jint, arrayBaseOffset, (JNIEnv* env, jobject, jchar type_char))
2389 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
2390 return arrayOopDesc::header_size(type) * HeapWordSize;
2391 C2V_END
2392
2393 C2V_VMENTRY_0(jint, arrayIndexScale, (JNIEnv* env, jobject, jchar type_char))
2394 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
2395 return type2aelembytes(type);
2396 C2V_END
2397
2398 C2V_VMENTRY(void, releaseClearedOopHandles, (JNIEnv* env, jobject))
2399 JVMCIENV->runtime()->release_cleared_oop_handles();
2400 C2V_END
2401
2402 static void requireJVMCINativeLibrary(JVMCI_TRAPS) {
2403 if (!UseJVMCINativeLibrary) {
2404 JVMCI_THROW_MSG(UnsupportedOperationException, "JVMCI shared library is not enabled (requires -XX:+UseJVMCINativeLibrary)");
2405 }
2406 }
2407
2408 C2V_VMENTRY_NULL(jlongArray, registerNativeMethods, (JNIEnv* env, jobject, jclass mirror))
2409 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2410 requireInHotSpot("registerNativeMethods", JVMCI_CHECK_NULL);
2411 char* sl_path;
2412 void* sl_handle;
2413 JVMCIRuntime* runtime;
2414 {
2415 // Ensure the JVMCI shared library runtime is initialized.
2416 bool jni_enomem_is_fatal = false;
2417 JVMCIEnv __peer_jvmci_env__(thread, false, jni_enomem_is_fatal, __FILE__, __LINE__);
2418 JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2419 if (peerEnv->has_jni_enomem()) {
2420 JVMCI_THROW_MSG_0(OutOfMemoryError, "JNI_ENOMEM creating or attaching to libjvmci");
2421 }
2422 HandleMark hm(THREAD);
2423 runtime = JVMCI::compiler_runtime(thread);
2424 if (peerEnv->has_pending_exception()) {
2425 peerEnv->describe_pending_exception(tty);
2426 }
2427 sl_handle = JVMCI::get_shared_library(sl_path, false);
2428 if (sl_handle == nullptr) {
2429 JVMCI_THROW_MSG_0(InternalError, err_msg("Error initializing JVMCI runtime %d", runtime->id()));
2430 }
2431 }
2432
2433 if (mirror == nullptr) {
2434 JVMCI_THROW_0(NullPointerException);
2435 }
2436 Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
2437 if (klass == nullptr || !klass->is_instance_klass()) {
2438 JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type");
2439 }
2440
2441 InstanceKlass* iklass = InstanceKlass::cast(klass);
2442 for (int i = 0; i < iklass->methods()->length(); i++) {
2443 methodHandle method(THREAD, iklass->methods()->at(i));
2444 if (method->is_native()) {
2445
2446 // Compute argument size
2447 int args_size = 1 // JNIEnv
2448 + (method->is_static() ? 1 : 0) // class for static methods
2449 + method->size_of_parameters(); // actual parameters
2450
2451 // 1) Try JNI short style
2452 stringStream st;
2453 char* pure_name = NativeLookup::pure_jni_name(method);
2454 guarantee(pure_name != nullptr, "Illegal native method name encountered");
2455 os::print_jni_name_prefix_on(&st, args_size);
2456 st.print_raw(pure_name);
2457 os::print_jni_name_suffix_on(&st, args_size);
2458 char* jni_name = st.as_string();
2459
2460 address entry = (address) os::dll_lookup(sl_handle, jni_name);
2461 if (entry == nullptr) {
2462 // 2) Try JNI long style
2463 st.reset();
2464 char* long_name = NativeLookup::long_jni_name(method);
2465 guarantee(long_name != nullptr, "Illegal native method name encountered");
2466 os::print_jni_name_prefix_on(&st, args_size);
2467 st.print_raw(pure_name);
2468 st.print_raw(long_name);
2469 os::print_jni_name_suffix_on(&st, args_size);
2470 char* jni_long_name = st.as_string();
2471 entry = (address) os::dll_lookup(sl_handle, jni_long_name);
2472 if (entry == nullptr) {
2473 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [neither %s nor %s exist in %s]",
2474 method->name_and_sig_as_C_string(),
2475 jni_name, jni_long_name, sl_path));
2476 }
2477 }
2478
2479 if (method->has_native_function() && entry != method->native_function()) {
2480 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [cannot re-link from " PTR_FORMAT " to " PTR_FORMAT "]",
2481 method->name_and_sig_as_C_string(), p2i(method->native_function()), p2i(entry)));
2482 }
2483 method->set_native_function(entry, Method::native_bind_event_is_interesting);
2484 log_debug(jni, resolve)("[Dynamic-linking native method %s.%s ... JNI] @ " PTR_FORMAT,
2485 method->method_holder()->external_name(),
2486 method->name()->as_C_string(),
2487 p2i((void*) entry));
2488 }
2489 }
2490
2491 typeArrayOop info_oop = oopFactory::new_longArray(4, CHECK_0);
2492 jlongArray info = (jlongArray) JNIHandles::make_local(THREAD, info_oop);
2493 runtime->init_JavaVM_info(info, JVMCI_CHECK_0);
2494 return info;
2495 }
2496
2497 C2V_VMENTRY_PREFIX(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject c2vm))
2498 if (thread == nullptr || thread->libjvmci_runtime() == nullptr) {
2499 // Called from unattached JVMCI shared library thread
2500 return false;
2501 }
2502 if (thread->jni_environment() == env) {
2503 C2V_BLOCK(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject))
2504 JVMCITraceMark jtm("isCurrentThreadAttached");
2505 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2506 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2507 if (runtime == nullptr || !runtime->has_shared_library_javavm()) {
2508 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in isCurrentThreadAttached");
2509 }
2510 JNIEnv* peerEnv;
2511 return runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) == JNI_OK;
2512 }
2513 return true;
2514 C2V_END
2515
2516 C2V_VMENTRY_PREFIX(jlong, getCurrentJavaThread, (JNIEnv* env, jobject c2vm))
2517 if (thread == nullptr) {
2518 // Called from unattached JVMCI shared library thread
2519 return 0L;
2520 }
2521 return (jlong) p2i(thread);
2522 C2V_END
2523
2524 // Attaches a thread started in a JVMCI shared library to a JavaThread and JVMCI runtime.
2525 static void attachSharedLibraryThread(JNIEnv* env, jbyteArray name, jboolean as_daemon) {
2526 JavaVM* javaVM = nullptr;
2527 jint res = env->GetJavaVM(&javaVM);
2528 if (res != JNI_OK) {
2529 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Error getting shared library JavaVM from shared library JNIEnv: %d", res));
2530 }
2531 extern struct JavaVM_ main_vm;
2532 JNIEnv* hotspotEnv;
2533
2534 int name_len = env->GetArrayLength(name);
2535 char name_buf[64]; // Cannot use Resource heap as it requires a current thread
2536 int to_copy = MIN2(name_len, (int) sizeof(name_buf) - 1);
2537 env->GetByteArrayRegion(name, 0, to_copy, (jbyte*) name_buf);
2538 name_buf[to_copy] = '\0';
2539 JavaVMAttachArgs attach_args;
2540 attach_args.version = JNI_VERSION_1_2;
2541 attach_args.name = name_buf;
2542 attach_args.group = nullptr;
2543 res = as_daemon ? main_vm.AttachCurrentThreadAsDaemon((void**)&hotspotEnv, &attach_args) :
2544 main_vm.AttachCurrentThread((void**)&hotspotEnv, &attach_args);
2545 if (res != JNI_OK) {
2546 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Trying to attach thread returned %d", res));
2547 }
2548 JavaThread* thread = get_current_thread(false);
2549 const char* attach_error;
2550 {
2551 // Transition to VM
2552 JVMCI_VM_ENTRY_MARK
2553 attach_error = JVMCIRuntime::attach_shared_library_thread(thread, javaVM);
2554 // Transition back to Native
2555 }
2556 if (attach_error != nullptr) {
2557 JNI_THROW("attachCurrentThread", InternalError, attach_error);
2558 }
2559 }
2560
2561 C2V_VMENTRY_PREFIX(jboolean, attachCurrentThread, (JNIEnv* env, jobject c2vm, jbyteArray name, jboolean as_daemon, jlongArray javaVM_info))
2562 if (thread == nullptr) {
2563 attachSharedLibraryThread(env, name, as_daemon);
2564 return true;
2565 }
2566 if (thread->jni_environment() == env) {
2567 // Called from HotSpot
2568 C2V_BLOCK(jboolean, attachCurrentThread, (JNIEnv* env, jobject, jboolean))
2569 JVMCITraceMark jtm("attachCurrentThread");
2570 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2571
2572 JVMCIRuntime* runtime = JVMCI::compiler_runtime(thread);
2573 JNIEnv* peerJNIEnv;
2574 if (runtime->has_shared_library_javavm()) {
2575 if (runtime->GetEnv(thread, (void**)&peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2576 // Already attached
2577 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0);
2578 return false;
2579 }
2580 }
2581
2582 {
2583 // Ensure the JVMCI shared library runtime is initialized.
2584 bool jni_enomem_is_fatal = false;
2585 JVMCIEnv __peer_jvmci_env__(thread, false, jni_enomem_is_fatal, __FILE__, __LINE__);
2586 JVMCIEnv* peerJVMCIEnv = &__peer_jvmci_env__;
2587 if (peerJVMCIEnv->has_jni_enomem()) {
2588 JVMCI_THROW_MSG_0(OutOfMemoryError, "JNI_ENOMEM creating or attaching to libjvmci");
2589 }
2590
2591 HandleMark hm(thread);
2592 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(peerJVMCIEnv);
2593 if (peerJVMCIEnv->has_pending_exception()) {
2594 peerJVMCIEnv->describe_pending_exception(tty);
2595 }
2596 char* sl_path;
2597 if (JVMCI::get_shared_library(sl_path, false) == nullptr) {
2598 JVMCI_THROW_MSG_0(InternalError, "Error initializing JVMCI runtime");
2599 }
2600 }
2601
2602 JavaVMAttachArgs attach_args;
2603 attach_args.version = JNI_VERSION_1_2;
2604 attach_args.name = const_cast<char*>(thread->name());
2605 attach_args.group = nullptr;
2606 if (runtime->GetEnv(thread, (void**) &peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2607 return false;
2608 }
2609 jint res = as_daemon ? runtime->AttachCurrentThreadAsDaemon(thread, (void**) &peerJNIEnv, &attach_args) :
2610 runtime->AttachCurrentThread(thread, (void**) &peerJNIEnv, &attach_args);
2611
2612 if (res == JNI_OK) {
2613 guarantee(peerJNIEnv != nullptr, "must be");
2614 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0);
2615 JVMCI_event_1("attached to JavaVM[%d] for JVMCI runtime %d", runtime->get_shared_library_javavm_id(), runtime->id());
2616 return true;
2617 }
2618 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, attach_args.name));
2619 }
2620 // Called from JVMCI shared library
2621 return false;
2622 C2V_END
2623
2624 C2V_VMENTRY_PREFIX(jboolean, detachCurrentThread, (JNIEnv* env, jobject c2vm, jboolean release))
2625 if (thread == nullptr) {
2626 // Called from unattached JVMCI shared library thread
2627 JNI_THROW_("detachCurrentThread", IllegalStateException, "Cannot detach non-attached thread", false);
2628 }
2629 if (thread->jni_environment() == env) {
2630 // Called from HotSpot
2631 C2V_BLOCK(void, detachCurrentThread, (JNIEnv* env, jobject))
2632 JVMCITraceMark jtm("detachCurrentThread");
2633 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2634 requireInHotSpot("detachCurrentThread", JVMCI_CHECK_0);
2635 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2636 if (runtime == nullptr || !runtime->has_shared_library_javavm()) {
2637 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in detachCurrentThread");
2638 }
2639 JNIEnv* peerEnv;
2640
2641 if (runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) != JNI_OK) {
2642 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("Cannot detach non-attached thread: %s", thread->name()));
2643 }
2644 jint res = runtime->DetachCurrentThread(thread);
2645 if (res != JNI_OK) {
2646 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, thread->name()));
2647 }
2648 JVMCI_event_1("detached from JavaVM[%d] for JVMCI runtime %d",
2649 runtime->get_shared_library_javavm_id(), runtime->id());
2650 if (release) {
2651 return runtime->detach_thread(thread, "user thread detach");
2652 }
2653 } else {
2654 // Called from attached JVMCI shared library thread
2655 if (release) {
2656 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread cannot release JVMCI shared library JavaVM", false);
2657 }
2658 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2659 if (runtime == nullptr) {
2660 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread should have a JVMCI runtime", false);
2661 }
2662 {
2663 // Transition to VM
2664 C2V_BLOCK(jboolean, detachCurrentThread, (JNIEnv* env, jobject))
2665 // Cannot destroy shared library JavaVM as we're about to return to it.
2666 runtime->detach_thread(thread, "shared library thread detach", false);
2667 JVMCI_event_1("detaching JVMCI shared library thread from HotSpot JavaVM");
2668 // Transition back to Native
2669 }
2670 extern struct JavaVM_ main_vm;
2671 jint res = main_vm.DetachCurrentThread();
2672 if (res != JNI_OK) {
2673 JNI_THROW_("detachCurrentThread", InternalError, "Cannot detach non-attached thread", false);
2674 }
2675 }
2676 return false;
2677 C2V_END
2678
2679 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle, jboolean callPostTranslation))
2680 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2681 if (obj_handle == nullptr) {
2682 return 0L;
2683 }
2684 bool jni_enomem_is_fatal = false;
2685 JVMCIEnv __peer_jvmci_env__(thread, !JVMCIENV->is_hotspot(), jni_enomem_is_fatal, __FILE__, __LINE__);
2686 JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2687 JVMCIEnv* thisEnv = JVMCIENV;
2688 if (peerEnv->has_jni_enomem()) {
2689 JVMCI_THROW_MSG_0(OutOfMemoryError, "JNI_ENOMEM creating or attaching to libjvmci");
2690 }
2691
2692 JVMCIObject obj = thisEnv->wrap(obj_handle);
2693 JVMCIObject result;
2694 if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) {
2695 methodHandle method(THREAD, thisEnv->asMethod(obj));
2696 result = peerEnv->get_jvmci_method(method, JVMCI_CHECK_0);
2697 } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) {
2698 Klass* klass = thisEnv->asKlass(obj);
2699 JVMCIKlassHandle klass_handle(THREAD);
2700 klass_handle = klass;
2701 result = peerEnv->get_jvmci_type(klass_handle, JVMCI_CHECK_0);
2702 } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) {
2703 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0);
2704 result = peerEnv->get_jvmci_primitive_type(type);
2705 } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) ||
2706 thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) {
2707 Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0);
2708 result = peerEnv->get_object_constant(constant());
2709 } else if (thisEnv->isa_HotSpotNmethod(obj)) {
2710 if (peerEnv->is_hotspot()) {
2711 nmethod* nm = JVMCIENV->get_nmethod(obj);
2712 if (nm != nullptr) {
2713 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2714 if (data != nullptr) {
2715 // Only the mirror in the HotSpot heap is accessible
2716 // through JVMCINMethodData
2717 oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true);
2718 if (nmethod_mirror != nullptr) {
2719 result = HotSpotJVMCI::wrap(nmethod_mirror);
2720 }
2721 }
2722 }
2723 }
2724
2725 if (result.is_null()) {
2726 JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj);
2727 methodHandle mh(THREAD, thisEnv->asMethod(methodObject));
2728 jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj);
2729 jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj);
2730 JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj);
2731 const char* cstring = name_string.is_null() ? nullptr : thisEnv->as_utf8_string(name_string);
2732 // Create a new HotSpotNmethod instance in the peer runtime
2733 result = peerEnv->new_HotSpotNmethod(mh, cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0);
2734 nmethod* nm = JVMCIENV->get_nmethod(obj);
2735 if (result.is_null()) {
2736 // exception occurred (e.g. OOME) creating a new HotSpotNmethod
2737 } else if (nm == nullptr) {
2738 // nmethod must have been unloaded
2739 } else {
2740 // Link the new HotSpotNmethod to the nmethod
2741 peerEnv->initialize_installed_code(result, nm, JVMCI_CHECK_0);
2742 // Only HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime.
2743 if (peerEnv->is_hotspot()) {
2744 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2745 if (data == nullptr) {
2746 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot set HotSpotNmethod mirror for default nmethod");
2747 }
2748 if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != nullptr) {
2749 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod");
2750 }
2751 oop nmethod_mirror = HotSpotJVMCI::resolve(result);
2752 data->set_nmethod_mirror(nm, nmethod_mirror);
2753 }
2754 }
2755 }
2756 } else {
2757 JVMCI_THROW_MSG_0(IllegalArgumentException,
2758 err_msg("Cannot translate object of type: %s", thisEnv->klass_name(obj)));
2759 }
2760 if (callPostTranslation) {
2761 peerEnv->call_HotSpotJVMCIRuntime_postTranslation(result, JVMCI_CHECK_0);
2762 }
2763 // Propagate any exception that occurred while creating the translated object
2764 if (peerEnv->transfer_pending_exception(thread, thisEnv)) {
2765 return 0L;
2766 }
2767 return (jlong) peerEnv->make_global(result).as_jobject();
2768 }
2769
2770 C2V_VMENTRY_NULL(jobject, unhand, (JNIEnv* env, jobject, jlong obj_handle))
2771 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2772 if (obj_handle == 0L) {
2773 return nullptr;
2774 }
2775 jobject global_handle = (jobject) obj_handle;
2776 JVMCIObject global_handle_obj = JVMCIENV->wrap(global_handle);
2777 jobject result = JVMCIENV->make_local(global_handle_obj).as_jobject();
2778
2779 JVMCIENV->destroy_global(global_handle_obj);
2780 return result;
2781 }
2782
2783 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle))
2784 JVMCIObject code = JVMCIENV->wrap(code_handle);
2785 // Execute this operation for the side effect of updating the InstalledCode state
2786 JVMCIENV->get_nmethod(code);
2787 }
2788
2789 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2790 JVMCIObject code = JVMCIENV->wrap(code_handle);
2791 CodeBlob* cb = JVMCIENV->get_code_blob(code);
2792 if (cb == nullptr) {
2793 return nullptr;
2794 }
2795 // Make a resource copy of code before the allocation causes a safepoint
2796 int code_size = cb->code_size();
2797 jbyte* code_bytes = NEW_RESOURCE_ARRAY(jbyte, code_size);
2798 memcpy(code_bytes, (jbyte*) cb->code_begin(), code_size);
2799
2800 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2801 JVMCIENV->copy_bytes_from(code_bytes, result, 0, code_size);
2802 return JVMCIENV->get_jbyteArray(result);
2803 }
2804
2805 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
2806 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2807 methodHandle m(THREAD, UNPACK_PAIR(Method, method));
2808 oop executable;
2809 if (m->is_class_initializer()) {
2810 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2811 "Cannot create java.lang.reflect.Method for class initializer");
2812 }
2813 else if (m->is_object_constructor() || m->is_static_vnew_factory()) {
2814 executable = Reflection::new_constructor(m, CHECK_NULL);
2815 } else {
2816 executable = Reflection::new_method(m, false, CHECK_NULL);
2817 }
2818 return JNIHandles::make_local(THREAD, executable);
2819 }
2820
2821 static InstanceKlass* check_field(Klass* klass, jint index, JVMCI_TRAPS) {
2822 if (!klass->is_instance_klass()) {
2823 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2824 err_msg("Expected non-primitive type, got %s", klass->external_name()));
2825 }
2826 InstanceKlass* iklass = InstanceKlass::cast(klass);
2827 if (index < 0 || index > iklass->total_fields_count()) {
2828 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2829 err_msg("Field index %d out of bounds for %s", index, klass->external_name()));
2830 }
2831 return iklass;
2832 }
2833
2834 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index))
2835 requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL);
2836 Klass* klass = UNPACK_PAIR(Klass, klass);
2837 InstanceKlass* iklass = check_field(klass, index, JVMCIENV);
2838 fieldDescriptor fd(iklass, index);
2839 oop reflected = Reflection::new_field(&fd, CHECK_NULL);
2840 return JNIHandles::make_local(THREAD, reflected);
2841 }
2842
2843 static jbyteArray get_encoded_annotation_data(InstanceKlass* holder, AnnotationArray* annotations_array, bool for_class,
2844 jint filter_length, jlong filter_klass_pointers,
2845 JavaThread* THREAD, JVMCIEnv* JVMCIENV) {
2846 // Get a ConstantPool object for annotation parsing
2847 Handle jcp = reflect_ConstantPool::create(CHECK_NULL);
2848 reflect_ConstantPool::set_cp(jcp(), holder->constants());
2849
2850 // load VMSupport
2851 Symbol* klass = vmSymbols::jdk_internal_vm_VMSupport();
2852 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK_NULL);
2853
2854 InstanceKlass* vm_support = InstanceKlass::cast(k);
2855 if (vm_support->should_be_initialized()) {
2856 vm_support->initialize(CHECK_NULL);
2857 }
2858
2859 typeArrayOop annotations_oop = Annotations::make_java_array(annotations_array, CHECK_NULL);
2860 typeArrayHandle annotations = typeArrayHandle(THREAD, annotations_oop);
2861
2862 InstanceKlass** filter = filter_length == 1 ?
2863 (InstanceKlass**) &filter_klass_pointers:
2864 (InstanceKlass**) filter_klass_pointers;
2865 objArrayOop filter_oop = oopFactory::new_objArray(vmClasses::Class_klass(), filter_length, CHECK_NULL);
2866 objArrayHandle filter_classes(THREAD, filter_oop);
2867 for (int i = 0; i < filter_length; i++) {
2868 filter_classes->obj_at_put(i, filter[i]->java_mirror());
2869 }
2870
2871 // invoke VMSupport.encodeAnnotations
2872 JavaValue result(T_OBJECT);
2873 JavaCallArguments args;
2874 args.push_oop(annotations);
2875 args.push_oop(Handle(THREAD, holder->java_mirror()));
2876 args.push_oop(jcp);
2877 args.push_int(for_class);
2878 args.push_oop(filter_classes);
2879 Symbol* signature = vmSymbols::encodeAnnotations_signature();
2880 JavaCalls::call_static(&result,
2881 vm_support,
2882 vmSymbols::encodeAnnotations_name(),
2883 signature,
2884 &args,
2885 CHECK_NULL);
2886
2887 oop res = result.get_oop();
2888 if (JVMCIENV->is_hotspot()) {
2889 return (jbyteArray) JNIHandles::make_local(THREAD, res);
2890 }
2891
2892 typeArrayOop ba = typeArrayOop(res);
2893 int ba_len = ba->length();
2894 jbyte* ba_buf = NEW_RESOURCE_ARRAY_IN_THREAD_RETURN_NULL(THREAD, jbyte, ba_len);
2895 if (ba_buf == nullptr) {
2896 JVMCI_THROW_MSG_NULL(InternalError,
2897 err_msg("could not allocate %d bytes", ba_len));
2898
2899 }
2900 memcpy(ba_buf, ba->byte_at_addr(0), ba_len);
2901 JVMCIPrimitiveArray ba_dest = JVMCIENV->new_byteArray(ba_len, JVMCI_CHECK_NULL);
2902 JVMCIENV->copy_bytes_from(ba_buf, ba_dest, 0, ba_len);
2903 return JVMCIENV->get_jbyteArray(ba_dest);
2904 }
2905
2906 C2V_VMENTRY_NULL(jbyteArray, getEncodedClassAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass),
2907 jobject filter, jint filter_length, jlong filter_klass_pointers))
2908 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass));
2909 return get_encoded_annotation_data(holder, holder->class_annotations(), true, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2910 C2V_END
2911
2912 C2V_VMENTRY_NULL(jbyteArray, getEncodedExecutableAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(method),
2913 jobject filter, jint filter_length, jlong filter_klass_pointers))
2914 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
2915 return get_encoded_annotation_data(method->method_holder(), method->annotations(), false, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2916 C2V_END
2917
2918 C2V_VMENTRY_NULL(jbyteArray, getEncodedFieldAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index,
2919 jobject filter, jint filter_length, jlong filter_klass_pointers))
2920 InstanceKlass* holder = check_field(InstanceKlass::cast(UNPACK_PAIR(Klass, klass)), index, JVMCIENV);
2921 fieldDescriptor fd(holder, index);
2922 return get_encoded_annotation_data(holder, fd.annotations(), false, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2923 C2V_END
2924
2925 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current))
2926 FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address);
2927 int result_length = 0;
2928 for (FailedSpeculation* fs = head; fs != nullptr; fs = fs->next()) {
2929 result_length++;
2930 }
2931 int current_length = 0;
2932 JVMCIObjectArray current_array = nullptr;
2933 if (current != nullptr) {
2934 current_array = JVMCIENV->wrap(current);
2935 current_length = JVMCIENV->get_length(current_array);
2936 if (current_length == result_length) {
2937 // No new failures
2938 return current;
2939 }
2940 }
2941 JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL);
2942 int result_index = 0;
2943 for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) {
2944 assert(fs != nullptr, "npe");
2945 JVMCIPrimitiveArray entry;
2946 if (result_index < current_length) {
2947 entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index);
2948 } else {
2949 entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL);
2950 JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len());
2951 }
2952 JVMCIENV->put_object_at(result, result_index++, entry);
2953 }
2954 return JVMCIENV->get_jobjectArray(result);
2955 }
2956
2957 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
2958 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
2959 MethodData* method_data = method->method_data();
2960 if (method_data == nullptr) {
2961 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
2962 method_data = MethodData::allocate(loader_data, method, CHECK_0);
2963 method->set_method_data(method_data);
2964 }
2965 return (jlong) method_data->get_failed_speculations_address();
2966 }
2967
2968 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address))
2969 FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address);
2970 }
2971
2972 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj))
2973 JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj);
2974 int speculation_len = JVMCIENV->get_length(speculation_handle);
2975 char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len);
2976 JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len);
2977 return FailedSpeculation::add_failed_speculation(nullptr, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len);
2978 }
2979
2980 C2V_VMENTRY(void, callSystemExit, (JNIEnv* env, jobject, jint status))
2981 JavaValue result(T_VOID);
2982 JavaCallArguments jargs(1);
2983 jargs.push_int(status);
2984 JavaCalls::call_static(&result,
2985 vmClasses::System_klass(),
2986 vmSymbols::exit_method_name(),
2987 vmSymbols::int_void_signature(),
2988 &jargs,
2989 CHECK);
2990 }
2991
2992 C2V_VMENTRY_0(jlong, ticksNow, (JNIEnv* env, jobject))
2993 return CompilerEvent::ticksNow();
2994 }
2995
2996 C2V_VMENTRY_0(jint, registerCompilerPhase, (JNIEnv* env, jobject, jstring jphase_name))
2997 #if INCLUDE_JFR
2998 JVMCIObject phase_name = JVMCIENV->wrap(jphase_name);
2999 const char *name = JVMCIENV->as_utf8_string(phase_name);
3000 return CompilerEvent::PhaseEvent::get_phase_id(name, true, true, true);
3001 #else
3002 return -1;
3003 #endif // !INCLUDE_JFR
3004 }
3005
3006 C2V_VMENTRY(void, notifyCompilerPhaseEvent, (JNIEnv* env, jobject, jlong startTime, jint phase, jint compileId, jint level))
3007 EventCompilerPhase event;
3008 if (event.should_commit()) {
3009 CompilerEvent::PhaseEvent::post(event, startTime, phase, compileId, level);
3010 }
3011 }
3012
3013 C2V_VMENTRY(void, notifyCompilerInliningEvent, (JNIEnv* env, jobject, jint compileId, ARGUMENT_PAIR(caller), ARGUMENT_PAIR(callee), jboolean succeeded, jstring jmessage, jint bci))
3014 EventCompilerInlining event;
3015 if (event.should_commit()) {
3016 Method* caller = UNPACK_PAIR(Method, caller);
3017 Method* callee = UNPACK_PAIR(Method, callee);
3018 JVMCIObject message = JVMCIENV->wrap(jmessage);
3019 CompilerEvent::InlineEvent::post(event, compileId, caller, callee, succeeded, JVMCIENV->as_utf8_string(message), bci);
3020 }
3021 }
3022
3023 C2V_VMENTRY(void, setThreadLocalObject, (JNIEnv* env, jobject, jint id, jobject value))
3024 requireInHotSpot("setThreadLocalObject", JVMCI_CHECK);
3025 if (id == 0) {
3026 thread->set_jvmci_reserved_oop0(JNIHandles::resolve(value));
3027 return;
3028 }
3029 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
3030 err_msg("%d is not a valid thread local id", id));
3031 }
3032
3033 C2V_VMENTRY_NULL(jobject, getThreadLocalObject, (JNIEnv* env, jobject, jint id))
3034 requireInHotSpot("getThreadLocalObject", JVMCI_CHECK_NULL);
3035 if (id == 0) {
3036 return JNIHandles::make_local(thread->get_jvmci_reserved_oop0());
3037 }
3038 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
3039 err_msg("%d is not a valid thread local id", id));
3040 }
3041
3042 C2V_VMENTRY(void, setThreadLocalLong, (JNIEnv* env, jobject, jint id, jlong value))
3043 requireInHotSpot("setThreadLocalLong", JVMCI_CHECK);
3044 if (id == 0) {
3045 thread->set_jvmci_reserved0(value);
3046 } else if (id == 1) {
3047 thread->set_jvmci_reserved1(value);
3048 } else {
3049 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
3050 err_msg("%d is not a valid thread local id", id));
3051 }
3052 }
3053
3054 C2V_VMENTRY_0(jlong, getThreadLocalLong, (JNIEnv* env, jobject, jint id))
3055 requireInHotSpot("getThreadLocalLong", JVMCI_CHECK_0);
3056 if (id == 0) {
3057 return thread->get_jvmci_reserved0();
3058 } else if (id == 1) {
3059 return thread->get_jvmci_reserved1();
3060 } else {
3061 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
3062 err_msg("%d is not a valid thread local id", id));
3063 }
3064 }
3065
3066 #define CC (char*) /*cast a literal from (const char*)*/
3067 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
3068
3069 #define STRING "Ljava/lang/String;"
3070 #define OBJECT "Ljava/lang/Object;"
3071 #define CLASS "Ljava/lang/Class;"
3072 #define OBJECTCONSTANT "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;"
3073 #define EXECUTABLE "Ljava/lang/reflect/Executable;"
3074 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;"
3075 #define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;"
3076 #define BYTECODE_FRAME "Ljdk/vm/ci/code/BytecodeFrame;"
3077 #define JAVACONSTANT "Ljdk/vm/ci/meta/JavaConstant;"
3078 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;"
3079 #define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
3080 #define FIELDINFO "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl$FieldInfo;"
3081 #define HS_RESOLVED_TYPE "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;"
3082 #define HS_INSTALLED_CODE "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;"
3083 #define HS_NMETHOD "Ljdk/vm/ci/hotspot/HotSpotNmethod;"
3084 #define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
3085 #define HS_CONFIG "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
3086 #define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
3087 #define HS_SPECULATION_LOG "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
3088 #define REFLECTION_EXECUTABLE "Ljava/lang/reflect/Executable;"
3089 #define REFLECTION_FIELD "Ljava/lang/reflect/Field;"
3090
3091 // Types wrapping VM pointers. The ...2 macro is for a pair: (wrapper, pointer)
3092 #define HS_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
3093 #define HS_METHOD2 "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;J"
3094 #define HS_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
3095 #define HS_KLASS2 "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;J"
3096 #define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
3097 #define HS_CONSTANT_POOL2 "Ljdk/vm/ci/hotspot/HotSpotConstantPool;J"
3098
3099 JNINativeMethod CompilerToVM::methods[] = {
3100 {CC "getBytecode", CC "(" HS_METHOD2 ")[B", FN_PTR(getBytecode)},
3101 {CC "getExceptionTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getExceptionTableStart)},
3102 {CC "getExceptionTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getExceptionTableLength)},
3103 {CC "findUniqueConcreteMethod", CC "(" HS_KLASS2 HS_METHOD2 ")" HS_METHOD, FN_PTR(findUniqueConcreteMethod)},
3104 {CC "getImplementor", CC "(" HS_KLASS2 ")" HS_KLASS, FN_PTR(getImplementor)},
3105 {CC "getStackTraceElement", CC "(" HS_METHOD2 "I)" STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)},
3106 {CC "methodIsIgnoredBySecurityStackWalk", CC "(" HS_METHOD2 ")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)},
3107 {CC "setNotInlinableOrCompilable", CC "(" HS_METHOD2 ")V", FN_PTR(setNotInlinableOrCompilable)},
3108 {CC "isCompilable", CC "(" HS_METHOD2 ")Z", FN_PTR(isCompilable)},
3109 {CC "hasNeverInlineDirective", CC "(" HS_METHOD2 ")Z", FN_PTR(hasNeverInlineDirective)},
3110 {CC "shouldInlineMethod", CC "(" HS_METHOD2 ")Z", FN_PTR(shouldInlineMethod)},
3111 {CC "lookupType", CC "(" STRING HS_KLASS2 "Z)" HS_RESOLVED_TYPE, FN_PTR(lookupType)},
3112 {CC "lookupJClass", CC "(J)" HS_RESOLVED_TYPE, FN_PTR(lookupJClass)},
3113 {CC "getArrayType", CC "(C" HS_KLASS2 ")" HS_KLASS, FN_PTR(getArrayType)},
3114 {CC "lookupClass", CC "(" CLASS ")" HS_RESOLVED_TYPE, FN_PTR(lookupClass)},
3115 {CC "lookupNameInPool", CC "(" HS_CONSTANT_POOL2 "II)" STRING, FN_PTR(lookupNameInPool)},
3116 {CC "lookupNameAndTypeRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(lookupNameAndTypeRefIndexInPool)},
3117 {CC "lookupSignatureInPool", CC "(" HS_CONSTANT_POOL2 "II)" STRING, FN_PTR(lookupSignatureInPool)},
3118 {CC "lookupKlassRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(lookupKlassRefIndexInPool)},
3119 {CC "lookupKlassInPool", CC "(" HS_CONSTANT_POOL2 "I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)},
3120 {CC "lookupAppendixInPool", CC "(" HS_CONSTANT_POOL2 "I)" OBJECTCONSTANT, FN_PTR(lookupAppendixInPool)},
3121 {CC "lookupMethodInPool", CC "(" HS_CONSTANT_POOL2 "IB" HS_METHOD2 ")" HS_METHOD, FN_PTR(lookupMethodInPool)},
3122 {CC "lookupConstantInPool", CC "(" HS_CONSTANT_POOL2 "IZ)" JAVACONSTANT, FN_PTR(lookupConstantInPool)},
3123 {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(constantPoolRemapInstructionOperandFromCache)},
3124 {CC "resolveBootstrapMethod", CC "(" HS_CONSTANT_POOL2 "I)[" OBJECT, FN_PTR(resolveBootstrapMethod)},
3125 {CC "getUncachedStringInPool", CC "(" HS_CONSTANT_POOL2 "I)" JAVACONSTANT, FN_PTR(getUncachedStringInPool)},
3126 {CC "resolveTypeInPool", CC "(" HS_CONSTANT_POOL2 "I)" HS_KLASS, FN_PTR(resolveTypeInPool)},
3127 {CC "resolveFieldInPool", CC "(" HS_CONSTANT_POOL2 "I" HS_METHOD2 "B[I)" HS_KLASS, FN_PTR(resolveFieldInPool)},
3128 {CC "decodeIndyIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "IZ)I", FN_PTR(decodeIndyIndexToCPIndex)},
3129 {CC "resolveInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "I)V", FN_PTR(resolveInvokeHandleInPool)},
3130 {CC "isResolvedInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(isResolvedInvokeHandleInPool)},
3131 {CC "resolveMethod", CC "(" HS_KLASS2 HS_METHOD2 HS_KLASS2 ")" HS_METHOD, FN_PTR(resolveMethod)},
3132 {CC "getSignaturePolymorphicHolders", CC "()[" STRING, FN_PTR(getSignaturePolymorphicHolders)},
3133 {CC "getVtableIndexForInterfaceMethod", CC "(" HS_KLASS2 HS_METHOD2 ")I", FN_PTR(getVtableIndexForInterfaceMethod)},
3134 {CC "getClassInitializer", CC "(" HS_KLASS2 ")" HS_METHOD, FN_PTR(getClassInitializer)},
3135 {CC "hasFinalizableSubclass", CC "(" HS_KLASS2 ")Z", FN_PTR(hasFinalizableSubclass)},
3136 {CC "getMaxCallTargetOffset", CC "(J)J", FN_PTR(getMaxCallTargetOffset)},
3137 {CC "asResolvedJavaMethod", CC "(" EXECUTABLE ")" HS_METHOD, FN_PTR(asResolvedJavaMethod)},
3138 {CC "getResolvedJavaMethod", CC "(" OBJECTCONSTANT "J)" HS_METHOD, FN_PTR(getResolvedJavaMethod)},
3139 {CC "getConstantPool", CC "(" OBJECT "JZ)" HS_CONSTANT_POOL, FN_PTR(getConstantPool)},
3140 {CC "getResolvedJavaType0", CC "(Ljava/lang/Object;JZ)" HS_KLASS, FN_PTR(getResolvedJavaType0)},
3141 {CC "readConfiguration", CC "()[" OBJECT, FN_PTR(readConfiguration)},
3142 {CC "installCode0", CC "(JJZ" HS_COMPILED_CODE "[" OBJECT INSTALLED_CODE "J[B)I", FN_PTR(installCode0)},
3143 {CC "getInstallCodeFlags", CC "()I", FN_PTR(getInstallCodeFlags)},
3144 {CC "resetCompilationStatistics", CC "()V", FN_PTR(resetCompilationStatistics)},
3145 {CC "disassembleCodeBlob", CC "(" INSTALLED_CODE ")" STRING, FN_PTR(disassembleCodeBlob)},
3146 {CC "executeHotSpotNmethod", CC "([" OBJECT HS_NMETHOD ")" OBJECT, FN_PTR(executeHotSpotNmethod)},
3147 {CC "getLineNumberTable", CC "(" HS_METHOD2 ")[J", FN_PTR(getLineNumberTable)},
3148 {CC "getLocalVariableTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getLocalVariableTableStart)},
3149 {CC "getLocalVariableTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getLocalVariableTableLength)},
3150 {CC "reprofile", CC "(" HS_METHOD2 ")V", FN_PTR(reprofile)},
3151 {CC "invalidateHotSpotNmethod", CC "(" HS_NMETHOD "Z)V", FN_PTR(invalidateHotSpotNmethod)},
3152 {CC "collectCounters", CC "()[J", FN_PTR(collectCounters)},
3153 {CC "getCountersSize", CC "()I", FN_PTR(getCountersSize)},
3154 {CC "setCountersSize", CC "(I)Z", FN_PTR(setCountersSize)},
3155 {CC "allocateCompileId", CC "(" HS_METHOD2 "I)I", FN_PTR(allocateCompileId)},
3156 {CC "isMature", CC "(J)Z", FN_PTR(isMature)},
3157 {CC "hasCompiledCodeForOSR", CC "(" HS_METHOD2 "II)Z", FN_PTR(hasCompiledCodeForOSR)},
3158 {CC "getSymbol", CC "(J)" STRING, FN_PTR(getSymbol)},
3159 {CC "getSignatureName", CC "(J)" STRING, FN_PTR(getSignatureName)},
3160 {CC "iterateFrames", CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT, FN_PTR(iterateFrames)},
3161 {CC "materializeVirtualObjects", CC "(" HS_STACK_FRAME_REF "Z)V", FN_PTR(materializeVirtualObjects)},
3162 {CC "shouldDebugNonSafepoints", CC "()Z", FN_PTR(shouldDebugNonSafepoints)},
3163 {CC "writeDebugOutput", CC "(JIZ)V", FN_PTR(writeDebugOutput)},
3164 {CC "flushDebugOutput", CC "()V", FN_PTR(flushDebugOutput)},
3165 {CC "methodDataProfileDataSize", CC "(JI)I", FN_PTR(methodDataProfileDataSize)},
3166 {CC "methodDataExceptionSeen", CC "(JI)I", FN_PTR(methodDataExceptionSeen)},
3167 {CC "interpreterFrameSize", CC "(" BYTECODE_FRAME ")I", FN_PTR(interpreterFrameSize)},
3168 {CC "compileToBytecode", CC "(" OBJECTCONSTANT ")V", FN_PTR(compileToBytecode)},
3169 {CC "getFlagValue", CC "(" STRING ")" OBJECT, FN_PTR(getFlagValue)},
3170 {CC "getInterfaces", CC "(" HS_KLASS2 ")[" HS_KLASS, FN_PTR(getInterfaces)},
3171 {CC "getComponentType", CC "(" HS_KLASS2 ")" HS_RESOLVED_TYPE, FN_PTR(getComponentType)},
3172 {CC "ensureInitialized", CC "(" HS_KLASS2 ")V", FN_PTR(ensureInitialized)},
3173 {CC "ensureLinked", CC "(" HS_KLASS2 ")V", FN_PTR(ensureLinked)},
3174 {CC "getIdentityHashCode", CC "(" OBJECTCONSTANT ")I", FN_PTR(getIdentityHashCode)},
3175 {CC "isInternedString", CC "(" OBJECTCONSTANT ")Z", FN_PTR(isInternedString)},
3176 {CC "unboxPrimitive", CC "(" OBJECTCONSTANT ")" OBJECT, FN_PTR(unboxPrimitive)},
3177 {CC "boxPrimitive", CC "(" OBJECT ")" OBJECTCONSTANT, FN_PTR(boxPrimitive)},
3178 {CC "getDeclaredConstructors", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredConstructors)},
3179 {CC "getDeclaredMethods", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredMethods)},
3180 {CC "getDeclaredFieldsInfo", CC "(" HS_KLASS2 ")[" FIELDINFO, FN_PTR(getDeclaredFieldsInfo)},
3181 {CC "readStaticFieldValue", CC "(" HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readStaticFieldValue)},
3182 {CC "readFieldValue", CC "(" OBJECTCONSTANT HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readFieldValue)},
3183 {CC "isInstance", CC "(" HS_KLASS2 OBJECTCONSTANT ")Z", FN_PTR(isInstance)},
3184 {CC "isAssignableFrom", CC "(" HS_KLASS2 HS_KLASS2 ")Z", FN_PTR(isAssignableFrom)},
3185 {CC "isTrustedForIntrinsics", CC "(" HS_KLASS2 ")Z", FN_PTR(isTrustedForIntrinsics)},
3186 {CC "asJavaType", CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE, FN_PTR(asJavaType)},
3187 {CC "asString", CC "(" OBJECTCONSTANT ")" STRING, FN_PTR(asString)},
3188 {CC "equals", CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z", FN_PTR(equals)},
3189 {CC "getJavaMirror", CC "(" HS_KLASS2 ")" OBJECTCONSTANT, FN_PTR(getJavaMirror)},
3190 {CC "getArrayLength", CC "(" OBJECTCONSTANT ")I", FN_PTR(getArrayLength)},
3191 {CC "readArrayElement", CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;", FN_PTR(readArrayElement)},
3192 {CC "arrayBaseOffset", CC "(C)I", FN_PTR(arrayBaseOffset)},
3193 {CC "arrayIndexScale", CC "(C)I", FN_PTR(arrayIndexScale)},
3194 {CC "releaseClearedOopHandles", CC "()V", FN_PTR(releaseClearedOopHandles)},
3195 {CC "registerNativeMethods", CC "(" CLASS ")[J", FN_PTR(registerNativeMethods)},
3196 {CC "isCurrentThreadAttached", CC "()Z", FN_PTR(isCurrentThreadAttached)},
3197 {CC "getCurrentJavaThread", CC "()J", FN_PTR(getCurrentJavaThread)},
3198 {CC "attachCurrentThread", CC "([BZ[J)Z", FN_PTR(attachCurrentThread)},
3199 {CC "detachCurrentThread", CC "(Z)Z", FN_PTR(detachCurrentThread)},
3200 {CC "translate", CC "(" OBJECT "Z)J", FN_PTR(translate)},
3201 {CC "unhand", CC "(J)" OBJECT, FN_PTR(unhand)},
3202 {CC "updateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(updateHotSpotNmethod)},
3203 {CC "getCode", CC "(" HS_INSTALLED_CODE ")[B", FN_PTR(getCode)},
3204 {CC "asReflectionExecutable", CC "(" HS_METHOD2 ")" REFLECTION_EXECUTABLE, FN_PTR(asReflectionExecutable)},
3205 {CC "asReflectionField", CC "(" HS_KLASS2 "I)" REFLECTION_FIELD, FN_PTR(asReflectionField)},
3206 {CC "getEncodedClassAnnotationData", CC "(" HS_KLASS2 OBJECT "IJ)[B", FN_PTR(getEncodedClassAnnotationData)},
3207 {CC "getEncodedExecutableAnnotationData", CC "(" HS_METHOD2 OBJECT "IJ)[B", FN_PTR(getEncodedExecutableAnnotationData)},
3208 {CC "getEncodedFieldAnnotationData", CC "(" HS_KLASS2 "I" OBJECT "IJ)[B", FN_PTR(getEncodedFieldAnnotationData)},
3209 {CC "getFailedSpeculations", CC "(J[[B)[[B", FN_PTR(getFailedSpeculations)},
3210 {CC "getFailedSpeculationsAddress", CC "(" HS_METHOD2 ")J", FN_PTR(getFailedSpeculationsAddress)},
3211 {CC "releaseFailedSpeculations", CC "(J)V", FN_PTR(releaseFailedSpeculations)},
3212 {CC "addFailedSpeculation", CC "(J[B)Z", FN_PTR(addFailedSpeculation)},
3213 {CC "callSystemExit", CC "(I)V", FN_PTR(callSystemExit)},
3214 {CC "ticksNow", CC "()J", FN_PTR(ticksNow)},
3215 {CC "getThreadLocalObject", CC "(I)" OBJECT, FN_PTR(getThreadLocalObject)},
3216 {CC "setThreadLocalObject", CC "(I" OBJECT ")V", FN_PTR(setThreadLocalObject)},
3217 {CC "getThreadLocalLong", CC "(I)J", FN_PTR(getThreadLocalLong)},
3218 {CC "setThreadLocalLong", CC "(IJ)V", FN_PTR(setThreadLocalLong)},
3219 {CC "registerCompilerPhase", CC "(" STRING ")I", FN_PTR(registerCompilerPhase)},
3220 {CC "notifyCompilerPhaseEvent", CC "(JIII)V", FN_PTR(notifyCompilerPhaseEvent)},
3221 {CC "notifyCompilerInliningEvent", CC "(I" HS_METHOD2 HS_METHOD2 "ZLjava/lang/String;I)V", FN_PTR(notifyCompilerInliningEvent)},
3222 };
3223
3224 int CompilerToVM::methods_count() {
3225 return sizeof(methods) / sizeof(JNINativeMethod);
3226 }