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