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