1 /*
2 * Copyright (c) 2011, 2024, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #include "precompiled.hpp"
25 #include "classfile/classLoaderData.inline.hpp"
26 #include "classfile/javaClasses.inline.hpp"
27 #include "classfile/stringTable.hpp"
28 #include "classfile/symbolTable.hpp"
29 #include "classfile/systemDictionary.hpp"
30 #include "classfile/vmClasses.hpp"
31 #include "code/scopeDesc.hpp"
32 #include "compiler/compileBroker.hpp"
33 #include "compiler/compilerEvent.hpp"
34 #include "compiler/compilerOracle.hpp"
35 #include "compiler/disassembler.hpp"
36 #include "compiler/oopMap.hpp"
37 #include "interpreter/bytecodeStream.hpp"
38 #include "interpreter/linkResolver.hpp"
39 #include "interpreter/oopMapCache.hpp"
40 #include "jfr/jfrEvents.hpp"
41 #include "jvmci/jvmciCodeInstaller.hpp"
42 #include "jvmci/jvmciCompilerToVM.hpp"
43 #include "jvmci/jvmciRuntime.hpp"
44 #include "logging/log.hpp"
45 #include "logging/logTag.hpp"
46 #include "memory/oopFactory.hpp"
47 #include "memory/universe.hpp"
48 #include "oops/constantPool.inline.hpp"
49 #include "oops/instanceKlass.inline.hpp"
50 #include "oops/instanceMirrorKlass.hpp"
51 #include "oops/method.inline.hpp"
52 #include "oops/objArrayKlass.inline.hpp"
53 #include "oops/typeArrayOop.inline.hpp"
54 #include "prims/jvmtiExport.hpp"
55 #include "prims/methodHandles.hpp"
56 #include "prims/nativeLookup.hpp"
57 #include "runtime/arguments.hpp"
58 #include "runtime/atomic.hpp"
59 #include "runtime/deoptimization.hpp"
60 #include "runtime/fieldDescriptor.inline.hpp"
61 #include "runtime/frame.inline.hpp"
62 #include "runtime/globals_extension.hpp"
63 #include "runtime/interfaceSupport.inline.hpp"
64 #include "runtime/jniHandles.inline.hpp"
65 #include "runtime/keepStackGCProcessed.hpp"
66 #include "runtime/reflection.hpp"
67 #include "runtime/stackFrameStream.inline.hpp"
68 #include "runtime/timerTrace.hpp"
69 #include "runtime/vframe.inline.hpp"
70 #include "runtime/vframe_hp.hpp"
71 #if INCLUDE_JFR
72 #include "jfr/jfr.hpp"
73 #endif
74
75 JVMCIKlassHandle::JVMCIKlassHandle(Thread* thread, Klass* klass) {
76 _thread = thread;
77 _klass = klass;
78 if (klass != nullptr) {
79 _holder = Handle(_thread, klass->klass_holder());
80 }
81 }
82
83 JVMCIKlassHandle& JVMCIKlassHandle::operator=(Klass* klass) {
84 _klass = klass;
85 if (klass != nullptr) {
86 _holder = Handle(_thread, klass->klass_holder());
87 }
88 return *this;
89 }
90
91 static void requireInHotSpot(const char* caller, JVMCI_TRAPS) {
92 if (!JVMCIENV->is_hotspot()) {
93 JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot call %s from JVMCI shared library", caller));
94 }
95 }
96
97 class JVMCITraceMark : public StackObj {
98 const char* _msg;
99 public:
100 JVMCITraceMark(const char* msg) {
101 _msg = msg;
102 JVMCI_event_2("Enter %s", _msg);
103 }
104 ~JVMCITraceMark() {
105 JVMCI_event_2(" Exit %s", _msg);
106 }
107 };
108
109 class JavaArgumentUnboxer : public SignatureIterator {
110 protected:
111 JavaCallArguments* _jca;
112 arrayOop _args;
113 int _index;
114
115 Handle next_arg(BasicType expectedType);
116
117 public:
118 JavaArgumentUnboxer(Symbol* signature,
119 JavaCallArguments* jca,
120 arrayOop args,
121 bool is_static)
122 : SignatureIterator(signature)
123 {
124 this->_return_type = T_ILLEGAL;
125 _jca = jca;
126 _index = 0;
127 _args = args;
128 if (!is_static) {
129 _jca->push_oop(next_arg(T_OBJECT));
130 }
131 do_parameters_on(this);
132 assert(_index == args->length(), "arg count mismatch with signature");
133 }
134
135 private:
136 friend class SignatureIterator; // so do_parameters_on can call do_type
137 void do_type(BasicType type) {
138 if (is_reference_type(type)) {
139 _jca->push_oop(next_arg(T_OBJECT));
140 return;
141 }
142 Handle arg = next_arg(type);
143 int box_offset = java_lang_boxing_object::value_offset(type);
144 switch (type) {
145 case T_BOOLEAN: _jca->push_int(arg->bool_field(box_offset)); break;
146 case T_CHAR: _jca->push_int(arg->char_field(box_offset)); break;
147 case T_SHORT: _jca->push_int(arg->short_field(box_offset)); break;
148 case T_BYTE: _jca->push_int(arg->byte_field(box_offset)); break;
149 case T_INT: _jca->push_int(arg->int_field(box_offset)); break;
150 case T_LONG: _jca->push_long(arg->long_field(box_offset)); break;
151 case T_FLOAT: _jca->push_float(arg->float_field(box_offset)); break;
152 case T_DOUBLE: _jca->push_double(arg->double_field(box_offset)); break;
153 default: ShouldNotReachHere();
154 }
155 }
156 };
157
158 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) {
159 assert(_index < _args->length(), "out of bounds");
160 oop arg=((objArrayOop) (_args))->obj_at(_index++);
161 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
162 return Handle(Thread::current(), arg);
163 }
164
165 // Bring the JVMCI compiler thread into the VM state.
166 #define JVMCI_VM_ENTRY_MARK \
167 MACOS_AARCH64_ONLY(ThreadWXEnable __wx(WXWrite, thread)); \
168 ThreadInVMfromNative __tiv(thread); \
169 HandleMarkCleaner __hm(thread); \
170 JavaThread* THREAD = thread; \
171 debug_only(VMNativeEntryWrapper __vew;)
172
173 // Native method block that transitions current thread to '_thread_in_vm'.
174 // Note: CompilerThreadCanCallJava must precede JVMCIENV_FROM_JNI so that
175 // the translation of an uncaught exception in the JVMCIEnv does not make
176 // a Java call when __is_hotspot == false.
177 #define C2V_BLOCK(result_type, name, signature) \
178 JVMCI_VM_ENTRY_MARK; \
179 ResourceMark rm; \
180 bool __is_hotspot = env == thread->jni_environment(); \
181 CompilerThreadCanCallJava ccj(thread, __is_hotspot); \
182 JVMCIENV_FROM_JNI(JVMCI::compilation_tick(thread), env); \
183
184 // Entry to native method implementation that transitions
185 // current thread to '_thread_in_vm'.
186 #define C2V_VMENTRY(result_type, name, signature) \
187 result_type JNICALL c2v_ ## name signature { \
188 JavaThread* thread = JavaThread::current_or_null(); \
189 if (thread == nullptr) { \
190 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
191 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
192 return; \
193 } \
194 C2V_BLOCK(result_type, name, signature) \
195 JVMCITraceMark jtm("CompilerToVM::" #name);
196
197 #define C2V_VMENTRY_(result_type, name, signature, result) \
198 result_type JNICALL c2v_ ## name signature { \
199 JavaThread* thread = JavaThread::current_or_null(); \
200 if (thread == nullptr) { \
201 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
202 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
203 return result; \
204 } \
205 C2V_BLOCK(result_type, name, signature) \
206 JVMCITraceMark jtm("CompilerToVM::" #name);
207
208 #define C2V_VMENTRY_NULL(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, nullptr)
209 #define C2V_VMENTRY_0(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, 0)
210
211 // Entry to native method implementation that does not transition
212 // current thread to '_thread_in_vm'.
213 #define C2V_VMENTRY_PREFIX(result_type, name, signature) \
214 result_type JNICALL c2v_ ## name signature { \
215 JavaThread* thread = JavaThread::current_or_null();
216
217 #define C2V_END }
218
219 #define JNI_THROW(caller, name, msg) do { \
220 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
221 if (__throw_res != JNI_OK) { \
222 JVMCI_event_1("Throwing " #name " in " caller " returned %d", __throw_res); \
223 } \
224 return; \
225 } while (0);
226
227 #define JNI_THROW_(caller, name, msg, result) do { \
228 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
229 if (__throw_res != JNI_OK) { \
230 JVMCI_event_1("Throwing " #name " in " caller " returned %d", __throw_res); \
231 } \
232 return result; \
233 } while (0)
234
235 jobjectArray readConfiguration0(JNIEnv *env, JVMCI_TRAPS);
236
237 C2V_VMENTRY_NULL(jobjectArray, readConfiguration, (JNIEnv* env))
238 jobjectArray config = readConfiguration0(env, JVMCI_CHECK_NULL);
239 return config;
240 }
241
242 C2V_VMENTRY_NULL(jobject, getFlagValue, (JNIEnv* env, jobject c2vm, jobject name_handle))
243 #define RETURN_BOXED_LONG(value) jvalue p; p.j = (jlong) (value); JVMCIObject box = JVMCIENV->create_box(T_LONG, &p, JVMCI_CHECK_NULL); return box.as_jobject();
244 #define RETURN_BOXED_DOUBLE(value) jvalue p; p.d = (jdouble) (value); JVMCIObject box = JVMCIENV->create_box(T_DOUBLE, &p, JVMCI_CHECK_NULL); return box.as_jobject();
245 JVMCIObject name = JVMCIENV->wrap(name_handle);
246 if (name.is_null()) {
247 JVMCI_THROW_NULL(NullPointerException);
248 }
249 const char* cstring = JVMCIENV->as_utf8_string(name);
250 const JVMFlag* flag = JVMFlag::find_declared_flag(cstring);
251 if (flag == nullptr) {
252 return c2vm;
253 }
254 if (flag->is_bool()) {
255 jvalue prim;
256 prim.z = flag->get_bool();
257 JVMCIObject box = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL);
258 return JVMCIENV->get_jobject(box);
259 } else if (flag->is_ccstr()) {
260 JVMCIObject value = JVMCIENV->create_string(flag->get_ccstr(), JVMCI_CHECK_NULL);
261 return JVMCIENV->get_jobject(value);
262 } else if (flag->is_intx()) {
263 RETURN_BOXED_LONG(flag->get_intx());
264 } else if (flag->is_int()) {
265 RETURN_BOXED_LONG(flag->get_int());
266 } else if (flag->is_uint()) {
267 RETURN_BOXED_LONG(flag->get_uint());
268 } else if (flag->is_uint64_t()) {
269 RETURN_BOXED_LONG(flag->get_uint64_t());
270 } else if (flag->is_size_t()) {
271 RETURN_BOXED_LONG(flag->get_size_t());
272 } else if (flag->is_uintx()) {
273 RETURN_BOXED_LONG(flag->get_uintx());
274 } else if (flag->is_double()) {
275 RETURN_BOXED_DOUBLE(flag->get_double());
276 } else {
277 JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->name(), flag->type_string());
278 }
279 #undef RETURN_BOXED_LONG
280 #undef RETURN_BOXED_DOUBLE
281 C2V_END
282
283 // Macros for argument pairs representing a wrapper object and its wrapped VM pointer
284 #define ARGUMENT_PAIR(name) jobject name ## _obj, jlong name ## _pointer
285 #define UNPACK_PAIR(type, name) ((type*) name ## _pointer)
286
287 C2V_VMENTRY_NULL(jbyteArray, getBytecode, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
288 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
289
290 int code_size = method->code_size();
291 jbyte* reconstituted_code = NEW_RESOURCE_ARRAY(jbyte, code_size);
292
293 guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
294 // iterate over all bytecodes and replace non-Java bytecodes
295
296 for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
297 Bytecodes::Code code = s.code();
298 Bytecodes::Code raw_code = s.raw_code();
299 int bci = s.bci();
300 int len = s.instruction_size();
301
302 // Restore original byte code.
303 reconstituted_code[bci] = (jbyte) (s.is_wide()? Bytecodes::_wide : code);
304 if (len > 1) {
305 memcpy(reconstituted_code + (bci + 1), s.bcp()+1, len-1);
306 }
307
308 if (len > 1) {
309 // Restore the big-endian constant pool indexes.
310 // Cf. Rewriter::scan_method
311 switch (code) {
312 case Bytecodes::_getstatic:
313 case Bytecodes::_putstatic:
314 case Bytecodes::_getfield:
315 case Bytecodes::_putfield:
316 case Bytecodes::_invokevirtual:
317 case Bytecodes::_invokespecial:
318 case Bytecodes::_invokestatic:
319 case Bytecodes::_invokeinterface:
320 case Bytecodes::_invokehandle: {
321 int cp_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
322 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
323 break;
324 }
325
326 case Bytecodes::_invokedynamic: {
327 int cp_index = Bytes::get_native_u4((address) reconstituted_code + (bci + 1));
328 Bytes::put_Java_u4((address) reconstituted_code + (bci + 1), (u4) cp_index);
329 break;
330 }
331
332 default:
333 break;
334 }
335
336 // Not all ldc byte code are rewritten.
337 switch (raw_code) {
338 case Bytecodes::_fast_aldc: {
339 int cpc_index = reconstituted_code[bci + 1] & 0xff;
340 int cp_index = method->constants()->object_to_cp_index(cpc_index);
341 assert(cp_index < method->constants()->length(), "sanity check");
342 reconstituted_code[bci + 1] = (jbyte) cp_index;
343 break;
344 }
345
346 case Bytecodes::_fast_aldc_w: {
347 int cpc_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
348 int cp_index = method->constants()->object_to_cp_index(cpc_index);
349 assert(cp_index < method->constants()->length(), "sanity check");
350 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
351 break;
352 }
353
354 default:
355 break;
356 }
357 }
358 }
359
360 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
361 JVMCIENV->copy_bytes_from(reconstituted_code, result, 0, code_size);
362 return JVMCIENV->get_jbyteArray(result);
363 C2V_END
364
365 C2V_VMENTRY_0(jint, getExceptionTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
366 Method* method = UNPACK_PAIR(Method, method);
367 return method->exception_table_length();
368 C2V_END
369
370 C2V_VMENTRY_0(jlong, getExceptionTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
371 Method* method = UNPACK_PAIR(Method, method);
372 if (method->exception_table_length() == 0) {
373 return 0L;
374 }
375 return (jlong) (address) method->exception_table_start();
376 C2V_END
377
378 C2V_VMENTRY_NULL(jobject, asResolvedJavaMethod, (JNIEnv* env, jobject, jobject executable_handle))
379 requireInHotSpot("asResolvedJavaMethod", JVMCI_CHECK_NULL);
380 oop executable = JNIHandles::resolve(executable_handle);
381 oop mirror = nullptr;
382 int slot = 0;
383
384 if (executable->klass() == vmClasses::reflect_Constructor_klass()) {
385 mirror = java_lang_reflect_Constructor::clazz(executable);
386 slot = java_lang_reflect_Constructor::slot(executable);
387 } else {
388 assert(executable->klass() == vmClasses::reflect_Method_klass(), "wrong type");
389 mirror = java_lang_reflect_Method::clazz(executable);
390 slot = java_lang_reflect_Method::slot(executable);
391 }
392 Klass* holder = java_lang_Class::as_Klass(mirror);
393 methodHandle method (THREAD, InstanceKlass::cast(holder)->method_with_idnum(slot));
394 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
395 return JVMCIENV->get_jobject(result);
396 }
397
398 C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset))
399 Method* method = nullptr;
400 JVMCIObject base_object = JVMCIENV->wrap(base);
401 if (base_object.is_null()) {
402 method = *((Method**)(offset));
403 } else {
404 Handle obj = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
405 if (obj->is_a(vmClasses::ResolvedMethodName_klass())) {
406 method = (Method*) (intptr_t) obj->long_field(offset);
407 } else {
408 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", obj->klass()->external_name()));
409 }
410 }
411 if (method == nullptr) {
412 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
413 }
414 assert (method->is_method(), "invalid read");
415 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, method), JVMCI_CHECK_NULL);
416 return JVMCIENV->get_jobject(result);
417 }
418
419 C2V_VMENTRY_NULL(jobject, getConstantPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass_or_method), jboolean is_klass))
420 ConstantPool* cp = nullptr;
421 if (UNPACK_PAIR(address, klass_or_method) == 0) {
422 JVMCI_THROW_NULL(NullPointerException);
423 }
424 if (!is_klass) {
425 cp = (UNPACK_PAIR(Method, klass_or_method))->constMethod()->constants();
426 } else {
427 cp = InstanceKlass::cast(UNPACK_PAIR(Klass, klass_or_method))->constants();
428 }
429
430 JVMCIObject result = JVMCIENV->get_jvmci_constant_pool(constantPoolHandle(THREAD, cp), JVMCI_CHECK_NULL);
431 return JVMCIENV->get_jobject(result);
432 }
433
434 C2V_VMENTRY_NULL(jobject, getResolvedJavaType0, (JNIEnv* env, jobject, jobject base, jlong offset, jboolean compressed))
435 JVMCIObject base_object = JVMCIENV->wrap(base);
436 if (base_object.is_null()) {
437 JVMCI_THROW_MSG_NULL(NullPointerException, "base object is null");
438 }
439
440 const char* base_desc = nullptr;
441 JVMCIKlassHandle klass(THREAD);
442
443 // With compact object headers, we can test for the explicit offset within
444 // the header to figure out if compiler code is accessing the class.
445 int klass_offset = UseCompactObjectHeaders ? 4 : oopDesc::klass_offset_in_bytes();
446 if (offset == klass_offset) {
447 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
448 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
449 klass = base_oop->klass();
450 } else {
451 goto unexpected;
452 }
453 } else if (!compressed) {
454 if (JVMCIENV->isa_HotSpotConstantPool(base_object)) {
455 ConstantPool* cp = JVMCIENV->asConstantPool(base_object);
456 if (offset == in_bytes(ConstantPool::pool_holder_offset())) {
457 klass = cp->pool_holder();
458 } else {
459 base_desc = FormatBufferResource("[constant pool for %s]", cp->pool_holder()->signature_name());
460 goto unexpected;
461 }
462 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
463 Klass* base_klass = JVMCIENV->asKlass(base_object);
464 if (offset == in_bytes(Klass::subklass_offset())) {
465 klass = base_klass->subklass();
466 } else if (offset == in_bytes(Klass::super_offset())) {
467 klass = base_klass->super();
468 } else if (offset == in_bytes(Klass::next_sibling_offset())) {
469 klass = base_klass->next_sibling();
470 } else if (offset == in_bytes(ObjArrayKlass::element_klass_offset()) && base_klass->is_objArray_klass()) {
471 klass = ObjArrayKlass::cast(base_klass)->element_klass();
472 } else if (offset >= in_bytes(Klass::primary_supers_offset()) &&
473 offset < in_bytes(Klass::primary_supers_offset()) + (int) (sizeof(Klass*) * Klass::primary_super_limit()) &&
474 offset % sizeof(Klass*) == 0) {
475 // Offset is within the primary supers array
476 int index = (int) ((offset - in_bytes(Klass::primary_supers_offset())) / sizeof(Klass*));
477 klass = base_klass->primary_super_of_depth(index);
478 } else {
479 base_desc = FormatBufferResource("[%s]", base_klass->signature_name());
480 goto unexpected;
481 }
482 } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
483 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
484 if (base_oop->is_a(vmClasses::Class_klass())) {
485 if (offset == java_lang_Class::klass_offset()) {
486 klass = java_lang_Class::as_Klass(base_oop());
487 } else if (offset == java_lang_Class::array_klass_offset()) {
488 klass = java_lang_Class::array_klass_acquire(base_oop());
489 } else {
490 base_desc = FormatBufferResource("[Class=%s]", java_lang_Class::as_Klass(base_oop())->signature_name());
491 goto unexpected;
492 }
493 } else {
494 if (!base_oop.is_null()) {
495 base_desc = FormatBufferResource("[%s]", base_oop()->klass()->signature_name());
496 }
497 goto unexpected;
498 }
499 } else if (JVMCIENV->isa_HotSpotMethodData(base_object)) {
500 jlong base_address = (intptr_t) JVMCIENV->asMethodData(base_object);
501 klass = *((Klass**) (intptr_t) (base_address + offset));
502 if (klass == nullptr || !klass->is_loader_alive()) {
503 // Klasses in methodData might be concurrently unloading so return null in that case.
504 return nullptr;
505 }
506 } else {
507 goto unexpected;
508 }
509 } else {
510 goto unexpected;
511 }
512
513 {
514 if (klass == nullptr) {
515 return nullptr;
516 }
517 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
518 return JVMCIENV->get_jobject(result);
519 }
520
521 unexpected:
522 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
523 err_msg("Unexpected arguments: %s%s " JLONG_FORMAT " %s",
524 JVMCIENV->klass_name(base_object), base_desc == nullptr ? "" : base_desc,
525 offset, compressed ? "true" : "false"));
526 }
527
528 C2V_VMENTRY_NULL(jobject, findUniqueConcreteMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method)))
529 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
530 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass));
531 if (holder->is_interface()) {
532 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Interface %s should be handled in Java code", holder->external_name()));
533 }
534 if (method->can_be_statically_bound()) {
535 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()));
536 }
537
538 methodHandle ucm;
539 {
540 MutexLocker locker(Compile_lock);
541 ucm = methodHandle(THREAD, Dependencies::find_unique_concrete_method(holder, method()));
542 }
543 JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL);
544 return JVMCIENV->get_jobject(result);
545 C2V_END
546
547 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
548 Klass* klass = UNPACK_PAIR(Klass, klass);
549 if (!klass->is_interface()) {
550 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
551 err_msg("Expected interface type, got %s", klass->external_name()));
552 }
553 InstanceKlass* iklass = InstanceKlass::cast(klass);
554 JVMCIKlassHandle handle(THREAD, iklass->implementor());
555 JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
556 return JVMCIENV->get_jobject(implementor);
557 C2V_END
558
559 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
560 Method* method = UNPACK_PAIR(Method, method);
561 return method->is_ignored_by_security_stack_walk();
562 C2V_END
563
564 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
565 Method* method = UNPACK_PAIR(Method, method);
566 // Skip redefined methods
567 if (method->is_old()) {
568 return false;
569 }
570 return !method->is_not_compilable(CompLevel_full_optimization);
571 C2V_END
572
573 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
574 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
575 return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
576 C2V_END
577
578 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
579 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
580 return CompilerOracle::should_inline(method) || method->force_inline();
581 C2V_END
582
583 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, ARGUMENT_PAIR(accessing_klass), jint accessing_klass_loader, jboolean resolve))
584 CompilerThreadCanCallJava canCallJava(thread, resolve); // Resolution requires Java calls
585 JVMCIObject name = JVMCIENV->wrap(jname);
586 const char* str = JVMCIENV->as_utf8_string(name);
587 TempNewSymbol class_name = SymbolTable::new_symbol(str);
588
589 if (class_name->utf8_length() <= 1) {
590 JVMCI_THROW_MSG_0(InternalError, err_msg("Primitive type %s should be handled in Java code", str));
591 }
592
593 #ifdef ASSERT
594 const char* val = Arguments::PropertyList_get_value(Arguments::system_properties(), "test.jvmci.lookupTypeException");
595 if (val != nullptr) {
596 if (strstr(val, "<trace>") != nullptr) {
597 tty->print_cr("CompilerToVM.lookupType: %s", str);
598 } else if (strstr(str, val) != nullptr) {
599 THROW_MSG_0(vmSymbols::java_lang_Exception(),
600 err_msg("lookupTypeException: %s", str));
601 }
602 }
603 #endif
604
605 JVMCIKlassHandle resolved_klass(THREAD);
606 Klass* accessing_klass = UNPACK_PAIR(Klass, accessing_klass);
607 Handle class_loader;
608 Handle protection_domain;
609 if (accessing_klass != nullptr) {
610 class_loader = Handle(THREAD, accessing_klass->class_loader());
611 protection_domain = Handle(THREAD, accessing_klass->protection_domain());
612 } else {
613 switch (accessing_klass_loader) {
614 case 0: break; // class_loader is already null, the boot loader
615 case 1: class_loader = Handle(THREAD, SystemDictionary::java_platform_loader()); break;
616 case 2: class_loader = Handle(THREAD, SystemDictionary::java_system_loader()); break;
617 default:
618 JVMCI_THROW_MSG_0(InternalError, err_msg("Illegal class loader value: %d", accessing_klass_loader));
619 }
620 JVMCIENV->runtime()->initialize(JVMCI_CHECK_NULL);
621 }
622
623 if (resolve) {
624 resolved_klass = SystemDictionary::resolve_or_fail(class_name, class_loader, protection_domain, true, CHECK_NULL);
625 } else {
626 if (Signature::has_envelope(class_name)) {
627 // This is a name from a signature. Strip off the trimmings.
628 // Call recursive to keep scope of strippedsym.
629 TempNewSymbol strippedsym = Signature::strip_envelope(class_name);
630 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym,
631 class_loader,
632 protection_domain);
633 } else if (Signature::is_array(class_name)) {
634 SignatureStream ss(class_name, false);
635 int ndim = ss.skip_array_prefix();
636 if (ss.type() == T_OBJECT) {
637 Symbol* strippedsym = ss.as_symbol();
638 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym,
639 class_loader,
640 protection_domain);
641 if (!resolved_klass.is_null()) {
642 resolved_klass = resolved_klass->array_klass(ndim, CHECK_NULL);
643 }
644 } else {
645 resolved_klass = Universe::typeArrayKlass(ss.type())->array_klass(ndim, CHECK_NULL);
646 }
647 } else {
648 resolved_klass = SystemDictionary::find_instance_klass(THREAD, class_name,
649 class_loader,
650 protection_domain);
651 }
652 }
653 JVMCIObject result = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
654 return JVMCIENV->get_jobject(result);
655 C2V_END
656
657 C2V_VMENTRY_NULL(jobject, getArrayType, (JNIEnv* env, jobject, jchar type_char, ARGUMENT_PAIR(klass)))
658 JVMCIKlassHandle array_klass(THREAD);
659 Klass* klass = UNPACK_PAIR(Klass, klass);
660 if (klass == nullptr) {
661 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
662 if (type == T_VOID) {
663 return nullptr;
664 }
665 array_klass = Universe::typeArrayKlass(type);
666 if (array_klass == nullptr) {
667 JVMCI_THROW_MSG_NULL(InternalError, err_msg("No array klass for primitive type %s", type2name(type)));
668 }
669 } else {
670 array_klass = klass->array_klass(CHECK_NULL);
671 }
672 JVMCIObject result = JVMCIENV->get_jvmci_type(array_klass, JVMCI_CHECK_NULL);
673 return JVMCIENV->get_jobject(result);
674 C2V_END
675
676 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror))
677 requireInHotSpot("lookupClass", JVMCI_CHECK_NULL);
678 if (mirror == nullptr) {
679 return nullptr;
680 }
681 JVMCIKlassHandle klass(THREAD);
682 klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
683 if (klass == nullptr) {
684 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported");
685 }
686 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
687 return JVMCIENV->get_jobject(result);
688 C2V_END
689
690 C2V_VMENTRY_NULL(jobject, lookupJClass, (JNIEnv* env, jobject, jlong jclass_value))
691 if (jclass_value == 0L) {
692 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass must not be zero");
693 }
694 jclass mirror = reinterpret_cast<jclass>(jclass_value);
695 // Since the jclass_value is passed as a jlong, we perform additional checks to prevent the caller from accidentally
696 // sending a value that is not a JNI handle.
697 if (JNIHandles::handle_type(thread, mirror) == JNIInvalidRefType) {
698 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass is not a valid JNI reference");
699 }
700 oop obj = JNIHandles::resolve(mirror);
701 if (!java_lang_Class::is_instance(obj)) {
702 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass must be a reference to the Class object");
703 }
704 JVMCIKlassHandle klass(THREAD, java_lang_Class::as_Klass(obj));
705 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
706 return JVMCIENV->get_jobject(result);
707 C2V_END
708
709 C2V_VMENTRY_NULL(jobject, getUncachedStringInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
710 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
711 constantTag tag = cp->tag_at(index);
712 if (!tag.is_string()) {
713 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
714 }
715 oop obj = cp->uncached_string_at(index, CHECK_NULL);
716 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
717 C2V_END
718
719 C2V_VMENTRY_NULL(jobject, lookupConstantInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint cp_index, bool resolve))
720 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
721 oop obj;
722 if (!resolve) {
723 bool found_it;
724 obj = cp->find_cached_constant_at(cp_index, found_it, CHECK_NULL);
725 if (!found_it) {
726 return nullptr;
727 }
728 } else {
729 obj = cp->resolve_possibly_cached_constant_at(cp_index, CHECK_NULL);
730 }
731 constantTag tag = cp->tag_at(cp_index);
732 if (tag.is_dynamic_constant()) {
733 if (obj == nullptr) {
734 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
735 }
736 BasicType bt = Signature::basic_type(cp->uncached_signature_ref_at(cp_index));
737 if (!is_reference_type(bt)) {
738 if (!is_java_primitive(bt)) {
739 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
740 }
741
742 // Convert standard box (e.g. java.lang.Integer) to JVMCI box (e.g. jdk.vm.ci.meta.PrimitiveConstant)
743 jvalue value;
744 jlong raw_value;
745 jchar type_char;
746 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
747 assert(bt2 == bt, "");
748 switch (bt2) {
749 case T_LONG: type_char = 'J'; raw_value = value.j; break;
750 case T_DOUBLE: type_char = 'D'; raw_value = value.j; break;
751 case T_FLOAT: type_char = 'F'; raw_value = value.i; break;
752 case T_INT: type_char = 'I'; raw_value = value.i; break;
753 case T_SHORT: type_char = 'S'; raw_value = value.s; break;
754 case T_BYTE: type_char = 'B'; raw_value = value.b; break;
755 case T_CHAR: type_char = 'C'; raw_value = value.c; break;
756 case T_BOOLEAN: type_char = 'Z'; raw_value = value.z; break;
757 default: return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
758 }
759
760 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, raw_value, JVMCI_CHECK_NULL);
761 return JVMCIENV->get_jobject(result);
762 }
763 }
764 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
765 C2V_END
766
767 C2V_VMENTRY_NULL(jobjectArray, resolveBootstrapMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
768 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
769 constantTag tag = cp->tag_at(index);
770 bool is_indy = tag.is_invoke_dynamic();
771 bool is_condy = tag.is_dynamic_constant();
772 if (!(is_condy || is_indy)) {
773 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
774 }
775 // Get the indy entry based on CP index
776 int indy_index = -1;
777 if (is_indy) {
778 for (int i = 0; i < cp->resolved_indy_entries_length(); i++) {
779 if (cp->resolved_indy_entry_at(i)->constant_pool_index() == index) {
780 indy_index = i;
781 }
782 }
783 }
784 // Resolve the bootstrap specifier, its name, type, and static arguments
785 BootstrapInfo bootstrap_specifier(cp, index, indy_index);
786 Handle bsm = bootstrap_specifier.resolve_bsm(CHECK_NULL);
787
788 // call java.lang.invoke.MethodHandle::asFixedArity() -> MethodHandle
789 // to get a DirectMethodHandle from which we can then extract a Method*
790 JavaValue result(T_OBJECT);
791 JavaCalls::call_virtual(&result,
792 bsm,
793 vmClasses::MethodHandle_klass(),
794 vmSymbols::asFixedArity_name(),
795 vmSymbols::asFixedArity_signature(),
796 CHECK_NULL);
797 bsm = Handle(THREAD, result.get_oop());
798
799 // Check assumption about getting a DirectMethodHandle
800 if (!java_lang_invoke_DirectMethodHandle::is_instance(bsm())) {
801 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Unexpected MethodHandle subclass: %s", bsm->klass()->external_name()));
802 }
803 // Create return array describing the bootstrap method invocation (BSMI)
804 JVMCIObjectArray bsmi = JVMCIENV->new_Object_array(4, JVMCI_CHECK_NULL);
805
806 // Extract Method* and wrap it in a ResolvedJavaMethod
807 Handle member = Handle(THREAD, java_lang_invoke_DirectMethodHandle::member(bsm()));
808 JVMCIObject bsmi_method = JVMCIENV->get_jvmci_method(methodHandle(THREAD, java_lang_invoke_MemberName::vmtarget(member())), JVMCI_CHECK_NULL);
809 JVMCIENV->put_object_at(bsmi, 0, bsmi_method);
810
811 JVMCIObject bsmi_name = JVMCIENV->create_string(bootstrap_specifier.name(), JVMCI_CHECK_NULL);
812 JVMCIENV->put_object_at(bsmi, 1, bsmi_name);
813
814 Handle type_arg = bootstrap_specifier.type_arg();
815 JVMCIObject bsmi_type = JVMCIENV->get_object_constant(type_arg());
816 JVMCIENV->put_object_at(bsmi, 2, bsmi_type);
817
818 Handle arg_values = bootstrap_specifier.arg_values();
819 if (arg_values.not_null()) {
820 if (!arg_values->is_array()) {
821 JVMCIENV->put_object_at(bsmi, 3, JVMCIENV->get_object_constant(arg_values()));
822 } else if (arg_values->is_objArray()) {
823 objArrayHandle args_array = objArrayHandle(THREAD, (objArrayOop) arg_values());
824 int len = args_array->length();
825 JVMCIObjectArray arguments = JVMCIENV->new_JavaConstant_array(len, JVMCI_CHECK_NULL);
826 JVMCIENV->put_object_at(bsmi, 3, arguments);
827 for (int i = 0; i < len; i++) {
828 oop x = args_array->obj_at(i);
829 if (x != nullptr) {
830 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_object_constant(x));
831 } else {
832 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_JavaConstant_NULL_POINTER());
833 }
834 }
835 } else if (arg_values->is_typeArray()) {
836 typeArrayHandle bsci = typeArrayHandle(THREAD, (typeArrayOop) arg_values());
837 JVMCIPrimitiveArray arguments = JVMCIENV->new_intArray(bsci->length(), JVMCI_CHECK_NULL);
838 JVMCIENV->put_object_at(bsmi, 3, arguments);
839 for (int i = 0; i < bsci->length(); i++) {
840 JVMCIENV->put_int_at(arguments, i, bsci->int_at(i));
841 }
842 }
843 }
844 return JVMCIENV->get_jobjectArray(bsmi);
845 C2V_END
846
847 C2V_VMENTRY_0(jint, bootstrapArgumentIndexAt, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint cpi, jint index))
848 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
849 return cp->bootstrap_argument_index_at(cpi, index);
850 C2V_END
851
852 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode))
853 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
854 return cp->name_and_type_ref_index_at(index, (Bytecodes::Code)opcode);
855 C2V_END
856
857 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode))
858 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
859 JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which, (Bytecodes::Code)opcode), JVMCI_CHECK_NULL);
860 return JVMCIENV->get_jobject(sym);
861 C2V_END
862
863 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode))
864 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
865 JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which, (Bytecodes::Code)opcode), JVMCI_CHECK_NULL);
866 return JVMCIENV->get_jobject(sym);
867 C2V_END
868
869 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode))
870 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
871 return cp->klass_ref_index_at(index, (Bytecodes::Code)opcode);
872 C2V_END
873
874 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
875 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
876 Klass* klass = cp->klass_at(index, CHECK_NULL);
877 JVMCIKlassHandle resolved_klass(THREAD, klass);
878 if (resolved_klass->is_instance_klass()) {
879 InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL);
880 if (!InstanceKlass::cast(resolved_klass())->is_linked()) {
881 // link_class() should not return here if there is an issue.
882 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name()));
883 }
884 }
885 JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
886 return JVMCIENV->get_jobject(klassObject);
887 C2V_END
888
889 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
890 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
891 Klass* loading_klass = cp->pool_holder();
892 bool is_accessible = false;
893 JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass));
894 Symbol* symbol = nullptr;
895 if (klass.is_null()) {
896 constantTag tag = cp->tag_at(index);
897 if (tag.is_klass()) {
898 // The klass has been inserted into the constant pool
899 // very recently.
900 klass = cp->resolved_klass_at(index);
901 } else if (tag.is_symbol()) {
902 symbol = cp->symbol_at(index);
903 } else {
904 assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag");
905 symbol = cp->klass_name_at(index);
906 }
907 }
908 JVMCIObject result;
909 if (!klass.is_null()) {
910 result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
911 } else {
912 result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL);
913 }
914 return JVMCIENV->get_jobject(result);
915 C2V_END
916
917 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode))
918 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
919 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, which, Bytecodes::Code(opcode));
920 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop));
921 C2V_END
922
923 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jbyte opcode, ARGUMENT_PAIR(caller)))
924 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
925 methodHandle caller(THREAD, UNPACK_PAIR(Method, caller));
926 InstanceKlass* pool_holder = cp->pool_holder();
927 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
928 methodHandle method(THREAD, JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder));
929 JFR_ONLY(if (method.not_null()) Jfr::on_resolution(caller(), method(), CHECK_NULL);)
930 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
931 return JVMCIENV->get_jobject(result);
932 C2V_END
933
934 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, ARGUMENT_PAIR(method), jbyte opcode, jintArray info_handle))
935 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
936 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
937 fieldDescriptor fd;
938 methodHandle mh(THREAD, UNPACK_PAIR(Method, method));
939
940 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
941 int holder_index = cp->klass_ref_index_at(index, bc);
942 if (!cp->tag_at(holder_index).is_klass() && !THREAD->can_call_java()) {
943 // If the holder is not resolved in the constant pool and the current
944 // thread cannot call Java, return null. This avoids a Java call
945 // in LinkInfo to load the holder.
946 Symbol* klass_name = cp->klass_ref_at_noresolve(index, bc);
947 return nullptr;
948 }
949
950 LinkInfo link_info(cp, index, mh, code, CHECK_NULL);
951 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_NULL);
952 JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle);
953 if (info.is_null() || JVMCIENV->get_length(info) != 4) {
954 JVMCI_ERROR_NULL("info must not be null and have a length of 4");
955 }
956 JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int());
957 JVMCIENV->put_int_at(info, 1, fd.offset());
958 JVMCIENV->put_int_at(info, 2, fd.index());
959 JVMCIENV->put_int_at(info, 3, fd.field_flags().as_uint());
960 JVMCIKlassHandle handle(THREAD, fd.field_holder());
961 JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
962 return JVMCIENV->get_jobject(field_holder);
963 C2V_END
964
965 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method)))
966 Klass* klass = UNPACK_PAIR(Klass, klass);
967 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
968 InstanceKlass* holder = method->method_holder();
969 if (klass->is_interface()) {
970 JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name()));
971 }
972 if (!holder->is_interface()) {
973 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()));
974 }
975 if (!klass->is_instance_klass()) {
976 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
977 }
978 if (!InstanceKlass::cast(klass)->is_linked()) {
979 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name()));
980 }
981 if (!klass->is_subtype_of(holder)) {
982 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s does not implement interface %s", klass->external_name(), holder->external_name()));
983 }
984 return LinkResolver::vtable_index_of_interface_method(klass, method);
985 C2V_END
986
987 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(receiver), ARGUMENT_PAIR(method), ARGUMENT_PAIR(caller)))
988 Klass* recv_klass = UNPACK_PAIR(Klass, receiver);
989 Klass* caller_klass = UNPACK_PAIR(Klass, caller);
990 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
991
992 Klass* resolved = method->method_holder();
993 Symbol* h_name = method->name();
994 Symbol* h_signature = method->signature();
995
996 if (MethodHandles::is_signature_polymorphic_method(method())) {
997 // Signature polymorphic methods are already resolved, JVMCI just returns null in this case.
998 return nullptr;
999 }
1000
1001 if (method->name() == vmSymbols::clone_name() &&
1002 resolved == vmClasses::Object_klass() &&
1003 recv_klass->is_array_klass()) {
1004 // Resolution of the clone method on arrays always returns Object.clone even though that method
1005 // has protected access. There's some trickery in the access checking to make this all work out
1006 // so it's necessary to pass in the array class as the resolved class to properly trigger this.
1007 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See
1008 // LinkResolver::check_method_accessability for the matching logic.
1009 resolved = recv_klass;
1010 }
1011
1012 LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
1013 Method* m = nullptr;
1014 // Only do exact lookup if receiver klass has been linked. Otherwise,
1015 // the vtable has not been setup, and the LinkResolver will fail.
1016 if (recv_klass->is_array_klass() ||
1017 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
1018 if (resolved->is_interface()) {
1019 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
1020 } else {
1021 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
1022 }
1023 }
1024
1025 if (m == nullptr) {
1026 // Return null if there was a problem with lookup (uninitialized class, etc.)
1027 return nullptr;
1028 }
1029
1030 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, m), JVMCI_CHECK_NULL);
1031 return JVMCIENV->get_jobject(result);
1032 C2V_END
1033
1034 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1035 Klass* klass = UNPACK_PAIR(Klass, klass);
1036 assert(klass != nullptr, "method must not be called for primitive types");
1037 if (!klass->is_instance_klass()) {
1038 return false;
1039 }
1040 InstanceKlass* iklass = InstanceKlass::cast(klass);
1041 return Dependencies::find_finalizable_subclass(iklass) != nullptr;
1042 C2V_END
1043
1044 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1045 Klass* klass = UNPACK_PAIR(Klass, klass);
1046 if (!klass->is_instance_klass()) {
1047 return nullptr;
1048 }
1049 InstanceKlass* iklass = InstanceKlass::cast(klass);
1050 methodHandle clinit(THREAD, iklass->class_initializer());
1051 JVMCIObject result = JVMCIENV->get_jvmci_method(clinit, JVMCI_CHECK_NULL);
1052 return JVMCIENV->get_jobject(result);
1053 C2V_END
1054
1055 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr))
1056 address target_addr = (address) addr;
1057 if (target_addr != 0x0) {
1058 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
1059 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
1060 return MAX2(ABS(off_low), ABS(off_high));
1061 }
1062 return -1;
1063 C2V_END
1064
1065 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1066 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1067 method->set_is_not_c1_compilable();
1068 method->set_is_not_c2_compilable();
1069 method->set_dont_inline(true);
1070 C2V_END
1071
1072 C2V_VMENTRY_0(jint, getInstallCodeFlags, (JNIEnv *env, jobject))
1073 int flags = 0;
1074 #ifndef PRODUCT
1075 flags |= 0x0001; // VM will install block comments
1076 flags |= 0x0004; // Enable HotSpotJVMCIRuntime.Option.CodeSerializationTypeInfo if not explicitly set
1077 #endif
1078 if (JvmtiExport::can_hotswap_or_post_breakpoint()) {
1079 // VM needs to track method dependencies
1080 flags |= 0x0002;
1081 }
1082 return flags;
1083 C2V_END
1084
1085 C2V_VMENTRY_0(jint, installCode0, (JNIEnv *env, jobject,
1086 jlong compiled_code_buffer,
1087 jlong serialization_ns,
1088 bool with_type_info,
1089 jobject compiled_code,
1090 jobjectArray object_pool,
1091 jobject installed_code,
1092 jlong failed_speculations_address,
1093 jbyteArray speculations_obj))
1094 HandleMark hm(THREAD);
1095 JNIHandleMark jni_hm(thread);
1096
1097 JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
1098 objArrayHandle object_pool_handle(thread, JVMCIENV->is_hotspot() ? (objArrayOop) JNIHandles::resolve(object_pool) : nullptr);
1099
1100 CodeBlob* cb = nullptr;
1101 JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code);
1102 JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj);
1103
1104 int speculations_len = JVMCIENV->get_length(speculations_handle);
1105 char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len);
1106 JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len);
1107
1108 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR);
1109 JVMCICompiler::CodeInstallStats* stats = compiler->code_install_stats(!thread->is_Compiler_thread());
1110 elapsedTimer *timer = stats->timer();
1111 timer->add_nanoseconds(serialization_ns);
1112 TraceTime install_time("installCode", timer);
1113
1114 CodeInstaller installer(JVMCIENV);
1115 JVMCINMethodHandle nmethod_handle(THREAD);
1116
1117 JVMCI::CodeInstallResult result = installer.install(compiler,
1118 compiled_code_buffer,
1119 with_type_info,
1120 compiled_code_handle,
1121 object_pool_handle,
1122 cb,
1123 nmethod_handle,
1124 installed_code_handle,
1125 (FailedSpeculation**)(address) failed_speculations_address,
1126 speculations,
1127 speculations_len,
1128 JVMCI_CHECK_0);
1129
1130 if (PrintCodeCacheOnCompilation) {
1131 stringStream s;
1132 // Dump code cache into a buffer before locking the tty,
1133 {
1134 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
1135 CodeCache::print_summary(&s, false);
1136 }
1137 ttyLocker ttyl;
1138 tty->print_raw_cr(s.freeze());
1139 }
1140
1141 if (result != JVMCI::ok) {
1142 assert(cb == nullptr, "should be");
1143 } else {
1144 stats->on_install(cb);
1145 if (installed_code_handle.is_non_null()) {
1146 if (cb->is_nmethod()) {
1147 assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type");
1148 // Clear the link to an old nmethod first
1149 JVMCIObject nmethod_mirror = installed_code_handle;
1150 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, true, JVMCI_CHECK_0);
1151 } else {
1152 assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type");
1153 }
1154 // Initialize the link to the new code blob
1155 JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0);
1156 }
1157 }
1158 return result;
1159 C2V_END
1160
1161 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject))
1162 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK);
1163 CompilerStatistics* stats = compiler->stats();
1164 stats->_standard.reset();
1165 stats->_osr.reset();
1166 C2V_END
1167
1168 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode))
1169 HandleMark hm(THREAD);
1170
1171 if (installedCode == nullptr) {
1172 JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null");
1173 }
1174
1175 JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode);
1176 CodeBlob* cb = JVMCIENV->get_code_blob(installedCodeObject);
1177 if (cb == nullptr) {
1178 return nullptr;
1179 }
1180
1181 // We don't want the stringStream buffer to resize during disassembly as it
1182 // uses scoped resource memory. If a nested function called during disassembly uses
1183 // a ResourceMark and the buffer expands within the scope of the mark,
1184 // the buffer becomes garbage when that scope is exited. Experience shows that
1185 // the disassembled code is typically about 10x the code size so a fixed buffer
1186 // sized to 20x code size plus a fixed amount for header info should be sufficient.
1187 int bufferSize = cb->code_size() * 20 + 1024;
1188 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
1189 stringStream st(buffer, bufferSize);
1190 Disassembler::decode(cb, &st);
1191 if (st.size() <= 0) {
1192 return nullptr;
1193 }
1194
1195 JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL);
1196 return JVMCIENV->get_jobject(result);
1197 C2V_END
1198
1199 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int bci))
1200 HandleMark hm(THREAD);
1201
1202 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1203 JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL);
1204 return JVMCIENV->get_jobject(element);
1205 C2V_END
1206
1207 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod))
1208 // The incoming arguments array would have to contain JavaConstants instead of regular objects
1209 // and the return value would have to be wrapped as a JavaConstant.
1210 requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL);
1211
1212 HandleMark hm(THREAD);
1213
1214 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1215 JVMCINMethodHandle nmethod_handle(THREAD);
1216 nmethod* nm = JVMCIENV->get_nmethod(nmethod_mirror, nmethod_handle);
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 nmethod* 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 static 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 static 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 static 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 static 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 static 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 KeepStackGCProcessedMark keep_stack(THREAD);
1491
1492 requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL);
1493
1494 HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1495
1496 vframeStream vfst(thread);
1497 jobjectArray methods = initial_methods;
1498 methodHandle visitor_method;
1499 GrowableArray<Method*>* resolved_methods = nullptr;
1500
1501 while (!vfst.at_end()) { // frame loop
1502 bool realloc_called = false;
1503 intptr_t* frame_id = vfst.frame_id();
1504
1505 // Previous compiledVFrame of this frame; use with at_scope() to reuse scope object pool.
1506 compiledVFrame* prev_cvf = nullptr;
1507
1508 for (; !vfst.at_end() && vfst.frame_id() == frame_id; vfst.next()) { // vframe loop
1509 int frame_number = 0;
1510 Method *method = vfst.method();
1511 int bci = vfst.bci();
1512
1513 Handle matched_jvmci_method;
1514 if (methods == nullptr || matches(methods, method, &resolved_methods, &matched_jvmci_method, THREAD, JVMCIENV)) {
1515 if (initialSkip > 0) {
1516 initialSkip--;
1517 continue;
1518 }
1519 javaVFrame* vf;
1520 if (prev_cvf != nullptr && prev_cvf->frame_pointer()->id() == frame_id) {
1521 assert(prev_cvf->is_compiled_frame(), "expected compiled Java frame");
1522 vf = prev_cvf->at_scope(vfst.decode_offset(), vfst.vframe_id());
1523 } else {
1524 vf = vfst.asJavaVFrame();
1525 }
1526
1527 StackValueCollection* locals = nullptr;
1528 typeArrayHandle localIsVirtual_h;
1529 if (vf->is_compiled_frame()) {
1530 // compiled method frame
1531 compiledVFrame* cvf = compiledVFrame::cast(vf);
1532
1533 ScopeDesc* scope = cvf->scope();
1534 // native wrappers do not have a scope
1535 if (scope != nullptr && scope->objects() != nullptr) {
1536 prev_cvf = cvf;
1537
1538 GrowableArray<ScopeValue*>* objects = nullptr;
1539 if (!realloc_called) {
1540 objects = scope->objects();
1541 } else {
1542 // some object might already have been re-allocated, only reallocate the non-allocated ones
1543 objects = get_unallocated_objects_or_null(scope->objects());
1544 }
1545
1546 if (objects != nullptr) {
1547 RegisterMap reg_map(vf->register_map());
1548 bool realloc_failures = Deoptimization::realloc_objects(thread, vf->frame_pointer(), ®_map, objects, CHECK_NULL);
1549 Deoptimization::reassign_fields(vf->frame_pointer(), ®_map, objects, realloc_failures, false);
1550 realloc_called = true;
1551 }
1552
1553 GrowableArray<ScopeValue*>* local_values = scope->locals();
1554 for (int i = 0; i < local_values->length(); i++) {
1555 ScopeValue* value = local_values->at(i);
1556 assert(!value->is_object_merge(), "Should not be.");
1557 if (value->is_object()) {
1558 if (localIsVirtual_h.is_null()) {
1559 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1560 localIsVirtual_h = typeArrayHandle(THREAD, array_oop);
1561 }
1562 localIsVirtual_h->bool_at_put(i, true);
1563 }
1564 }
1565 }
1566
1567 locals = cvf->locals();
1568 frame_number = cvf->vframe_id();
1569 } else {
1570 // interpreted method frame
1571 interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1572
1573 locals = ivf->locals();
1574 }
1575 assert(bci == vf->bci(), "wrong bci");
1576 assert(method == vf->method(), "wrong method");
1577
1578 Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1579 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), bci);
1580 if (matched_jvmci_method.is_null()) {
1581 methodHandle mh(THREAD, method);
1582 JVMCIObject jvmci_method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1583 matched_jvmci_method = Handle(THREAD, JNIHandles::resolve(jvmci_method.as_jobject()));
1584 }
1585 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), matched_jvmci_method());
1586 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), localIsVirtual_h());
1587
1588 HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM));
1589 HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) frame_id);
1590 HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number);
1591
1592 // initialize the locals array
1593 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1594 objArrayHandle array(THREAD, array_oop);
1595 for (int i = 0; i < locals->size(); i++) {
1596 StackValue* var = locals->at(i);
1597 if (var->type() == T_OBJECT) {
1598 array->obj_at_put(i, locals->at(i)->get_obj()());
1599 }
1600 }
1601 HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array());
1602 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE);
1603
1604 JavaValue result(T_OBJECT);
1605 JavaCallArguments args(visitor);
1606 if (visitor_method.is_null()) {
1607 visitor_method = resolve_interface_call(HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL);
1608 }
1609
1610 args.push_oop(frame_reference);
1611 JavaCalls::call(&result, visitor_method, &args, CHECK_NULL);
1612 if (result.get_oop() != nullptr) {
1613 return JNIHandles::make_local(thread, result.get_oop());
1614 }
1615 if (methods == initial_methods) {
1616 methods = match_methods;
1617 if (resolved_methods != nullptr && JNIHandles::resolve(match_methods) != JNIHandles::resolve(initial_methods)) {
1618 resolved_methods = nullptr;
1619 }
1620 }
1621 assert(initialSkip == 0, "There should be no match before initialSkip == 0");
1622 if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) {
1623 // the frame has been deoptimized, we need to re-synchronize the frame and vframe
1624 prev_cvf = nullptr;
1625 intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference());
1626 resync_vframestream_to_compiled_frame(vfst, stack_pointer, frame_number, thread, CHECK_NULL);
1627 }
1628 }
1629 } // end of vframe loop
1630 } // end of frame loop
1631
1632 // the end was reached without finding a matching method
1633 return nullptr;
1634 C2V_END
1635
1636 C2V_VMENTRY_0(int, decodeIndyIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint indy_index, jboolean resolve))
1637 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1638 CallInfo callInfo;
1639 if (resolve) {
1640 LinkResolver::resolve_invoke(callInfo, Handle(), cp, indy_index, Bytecodes::_invokedynamic, CHECK_0);
1641 cp->cache()->set_dynamic_call(callInfo, indy_index);
1642 }
1643 return cp->resolved_indy_entry_at(indy_index)->constant_pool_index();
1644 C2V_END
1645
1646 C2V_VMENTRY_0(int, decodeFieldIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint field_index))
1647 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1648 if (field_index < 0 || field_index >= cp->resolved_field_entries_length()) {
1649 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("invalid field index %d", field_index));
1650 }
1651 return cp->resolved_field_entry_at(field_index)->constant_pool_index();
1652 C2V_END
1653
1654 C2V_VMENTRY_0(int, decodeMethodIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint method_index))
1655 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1656 if (method_index < 0 || method_index >= cp->resolved_method_entries_length()) {
1657 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("invalid method index %d", method_index));
1658 }
1659 return cp->resolved_method_entry_at(method_index)->constant_pool_index();
1660 C2V_END
1661
1662 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
1663 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1664 Klass* holder = cp->klass_ref_at(index, Bytecodes::_invokehandle, CHECK);
1665 Symbol* name = cp->name_ref_at(index, Bytecodes::_invokehandle);
1666 if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1667 CallInfo callInfo;
1668 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1669 cp->cache()->set_method_handle(index, callInfo);
1670 }
1671 C2V_END
1672
1673 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode))
1674 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1675 ResolvedMethodEntry* entry = cp->cache()->resolved_method_entry_at(index);
1676 if (entry->is_resolved(Bytecodes::_invokehandle)) {
1677 // MethodHandle.invoke* --> LambdaForm?
1678 ResourceMark rm;
1679
1680 LinkInfo link_info(cp, index, Bytecodes::_invokehandle, CATCH);
1681
1682 Klass* resolved_klass = link_info.resolved_klass();
1683
1684 Symbol* name_sym = cp->name_ref_at(index, Bytecodes::_invokehandle);
1685
1686 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1687 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1688
1689 methodHandle adapter_method(THREAD, entry->method());
1690
1691 methodHandle resolved_method(adapter_method);
1692
1693 // Can we treat it as a regular invokevirtual?
1694 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1695 vmassert(!resolved_method->is_static(),"!");
1696 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1697 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1698 vmassert(cp->cache()->appendix_if_resolved(entry) == nullptr, "!");
1699
1700 methodHandle m(THREAD, LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1701 vmassert(m == resolved_method, "!!");
1702 return -1;
1703 }
1704
1705 return Bytecodes::_invokevirtual;
1706 }
1707 if ((Bytecodes::Code)opcode == Bytecodes::_invokedynamic) {
1708 if (cp->resolved_indy_entry_at(index)->is_resolved()) {
1709 return Bytecodes::_invokedynamic;
1710 }
1711 }
1712 return -1;
1713 C2V_END
1714
1715
1716 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject))
1717 JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL);
1718 JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL);
1719 JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL);
1720 JVMCIENV->put_object_at(holders, 0, mh);
1721 JVMCIENV->put_object_at(holders, 1, vh);
1722 return JVMCIENV->get_jobject(holders);
1723 C2V_END
1724
1725 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject))
1726 //see compute_recording_non_safepoints in debugInfroRec.cpp
1727 if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1728 return true;
1729 }
1730 return DebugNonSafepoints;
1731 C2V_END
1732
1733 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1734 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate))
1735 JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame);
1736 if (hs_frame.is_null()) {
1737 JVMCI_THROW_MSG(NullPointerException, "stack frame is null");
1738 }
1739
1740 requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK);
1741
1742 JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK);
1743
1744 // look for the given stack frame
1745 StackFrameStream fst(thread, false /* update */, true /* process_frames */);
1746 intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame);
1747 while (fst.current()->id() != stack_pointer && !fst.is_done()) {
1748 fst.next();
1749 }
1750 if (fst.current()->id() != stack_pointer) {
1751 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found");
1752 }
1753
1754 if (invalidate) {
1755 if (!fst.current()->is_compiled_frame()) {
1756 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1757 }
1758 fst.current()->cb()->as_nmethod()->make_not_entrant();
1759 }
1760 Deoptimization::deoptimize(thread, *fst.current(), Deoptimization::Reason_none);
1761 // look for the frame again as it has been updated by deopt (pc, deopt state...)
1762 StackFrameStream fstAfterDeopt(thread, true /* update */, true /* process_frames */);
1763 while (fstAfterDeopt.current()->id() != stack_pointer && !fstAfterDeopt.is_done()) {
1764 fstAfterDeopt.next();
1765 }
1766 if (fstAfterDeopt.current()->id() != stack_pointer) {
1767 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found after deopt");
1768 }
1769
1770 vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1771 if (!vf->is_compiled_frame()) {
1772 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1773 }
1774
1775 GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1776 while (true) {
1777 assert(vf->is_compiled_frame(), "Wrong frame type");
1778 virtualFrames->push(compiledVFrame::cast(vf));
1779 if (vf->is_top()) {
1780 break;
1781 }
1782 vf = vf->sender();
1783 }
1784
1785 int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame);
1786 if (last_frame_number >= virtualFrames->length()) {
1787 JVMCI_THROW_MSG(IllegalStateException, "invalid frame number");
1788 }
1789
1790 // Reallocate the non-escaping objects and restore their fields.
1791 assert (virtualFrames->at(last_frame_number)->scope() != nullptr,"invalid scope");
1792 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1793
1794 if (objects == nullptr) {
1795 // no objects to materialize
1796 return;
1797 }
1798
1799 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK);
1800 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
1801
1802 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1803 compiledVFrame* cvf = virtualFrames->at(frame_index);
1804
1805 GrowableArray<ScopeValue*>* scopedValues = cvf->scope()->locals();
1806 StackValueCollection* locals = cvf->locals();
1807 if (locals != nullptr) {
1808 for (int i2 = 0; i2 < locals->size(); i2++) {
1809 StackValue* var = locals->at(i2);
1810 assert(!scopedValues->at(i2)->is_object_merge(), "Should not be.");
1811 if (var->type() == T_OBJECT && scopedValues->at(i2)->is_object()) {
1812 jvalue val;
1813 val.l = cast_from_oop<jobject>(locals->at(i2)->get_obj()());
1814 cvf->update_local(T_OBJECT, i2, val);
1815 }
1816 }
1817 }
1818
1819 GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1820 StackValueCollection* expressions = cvf->expressions();
1821 if (expressions != nullptr) {
1822 for (int i2 = 0; i2 < expressions->size(); i2++) {
1823 StackValue* var = expressions->at(i2);
1824 assert(!scopeExpressions->at(i2)->is_object_merge(), "Should not be.");
1825 if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) {
1826 jvalue val;
1827 val.l = cast_from_oop<jobject>(expressions->at(i2)->get_obj()());
1828 cvf->update_stack(T_OBJECT, i2, val);
1829 }
1830 }
1831 }
1832
1833 GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors();
1834 GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
1835 if (monitors != nullptr) {
1836 for (int i2 = 0; i2 < monitors->length(); i2++) {
1837 cvf->update_monitor(i2, monitors->at(i2));
1838 }
1839 }
1840 }
1841
1842 // all locals are materialized by now
1843 JVMCIENV->set_HotSpotStackFrameReference_localIsVirtual(hs_frame, nullptr);
1844 // update the locals array
1845 JVMCIObjectArray array = JVMCIENV->get_HotSpotStackFrameReference_locals(hs_frame);
1846 StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1847 for (int i = 0; i < locals->size(); i++) {
1848 StackValue* var = locals->at(i);
1849 if (var->type() == T_OBJECT) {
1850 JVMCIENV->put_object_at(array, i, HotSpotJVMCI::wrap(locals->at(i)->get_obj()()));
1851 }
1852 }
1853 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, hs_frame, JNI_TRUE);
1854 C2V_END
1855
1856 // Use of tty does not require the current thread to be attached to the VM
1857 // so no need for a full C2V_VMENTRY transition.
1858 C2V_VMENTRY_PREFIX(void, writeDebugOutput, (JNIEnv* env, jobject, jlong buffer, jint length, bool flush))
1859 if (length <= 8) {
1860 tty->write((char*) &buffer, length);
1861 } else {
1862 tty->write((char*) buffer, length);
1863 }
1864 if (flush) {
1865 tty->flush();
1866 }
1867 C2V_END
1868
1869 // Use of tty does not require the current thread to be attached to the VM
1870 // so no need for a full C2V_VMENTRY transition.
1871 C2V_VMENTRY_PREFIX(void, flushDebugOutput, (JNIEnv* env, jobject))
1872 tty->flush();
1873 C2V_END
1874
1875 C2V_VMENTRY_0(jint, methodDataProfileDataSize, (JNIEnv* env, jobject, jlong method_data_pointer, jint position))
1876 MethodData* mdo = (MethodData*) method_data_pointer;
1877 ProfileData* profile_data = mdo->data_at(position);
1878 if (mdo->is_valid(profile_data)) {
1879 return profile_data->size_in_bytes();
1880 }
1881 // Java code should never directly access the extra data section
1882 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Invalid profile data position %d", position));
1883 C2V_END
1884
1885 C2V_VMENTRY_0(jint, methodDataExceptionSeen, (JNIEnv* env, jobject, jlong method_data_pointer, jint bci))
1886 MethodData* mdo = (MethodData*) method_data_pointer;
1887
1888 // Lock to read ProfileData, and ensure lock is not broken by a safepoint
1889 MutexLocker mu(mdo->extra_data_lock(), Mutex::_no_safepoint_check_flag);
1890
1891 DataLayout* data = mdo->extra_data_base();
1892 DataLayout* end = mdo->args_data_limit();
1893 for (;; data = mdo->next_extra(data)) {
1894 assert(data < end, "moved past end of extra data");
1895 int tag = data->tag();
1896 switch(tag) {
1897 case DataLayout::bit_data_tag: {
1898 BitData* bit_data = (BitData*) data->data_in();
1899 if (bit_data->bci() == bci) {
1900 return bit_data->exception_seen() ? 1 : 0;
1901 }
1902 break;
1903 }
1904 case DataLayout::no_tag:
1905 // There is a free slot so return false since a BitData would have been allocated to record
1906 // true if it had been seen.
1907 return 0;
1908 case DataLayout::arg_info_data_tag:
1909 // The bci wasn't found and there are no free slots to record a trap for this location, so always
1910 // return unknown.
1911 return -1;
1912 }
1913 }
1914 ShouldNotReachHere();
1915 return -1;
1916 C2V_END
1917
1918 C2V_VMENTRY_NULL(jobject, getInterfaces, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1919 Klass* klass = UNPACK_PAIR(Klass, klass);
1920 if (klass == nullptr) {
1921 JVMCI_THROW_0(NullPointerException);
1922 }
1923
1924 if (!klass->is_instance_klass()) {
1925 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
1926 }
1927 InstanceKlass* iklass = InstanceKlass::cast(klass);
1928
1929 // Regular instance klass, fill in all local interfaces
1930 int size = iklass->local_interfaces()->length();
1931 JVMCIObjectArray interfaces = JVMCIENV->new_HotSpotResolvedObjectTypeImpl_array(size, JVMCI_CHECK_NULL);
1932 for (int index = 0; index < size; index++) {
1933 JVMCIKlassHandle klass(THREAD);
1934 Klass* k = iklass->local_interfaces()->at(index);
1935 klass = k;
1936 JVMCIObject type = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
1937 JVMCIENV->put_object_at(interfaces, index, type);
1938 }
1939 return JVMCIENV->get_jobject(interfaces);
1940 C2V_END
1941
1942 C2V_VMENTRY_NULL(jobject, getComponentType, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1943 Klass* klass = UNPACK_PAIR(Klass, klass);
1944 if (klass == nullptr) {
1945 JVMCI_THROW_0(NullPointerException);
1946 }
1947
1948 if (!klass->is_array_klass()) {
1949 return nullptr;
1950 }
1951 oop mirror = klass->java_mirror();
1952 oop component_mirror = java_lang_Class::component_mirror(mirror);
1953 if (component_mirror == nullptr) {
1954 JVMCI_THROW_MSG_0(NullPointerException,
1955 err_msg("Component mirror for array class %s is null", klass->external_name()))
1956 }
1957
1958 Klass* component_klass = java_lang_Class::as_Klass(component_mirror);
1959 if (component_klass != nullptr) {
1960 JVMCIKlassHandle klass_handle(THREAD, component_klass);
1961 JVMCIObject result = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
1962 return JVMCIENV->get_jobject(result);
1963 }
1964 BasicType type = java_lang_Class::primitive_type(component_mirror);
1965 JVMCIObject result = JVMCIENV->get_jvmci_primitive_type(type);
1966 return JVMCIENV->get_jobject(result);
1967 C2V_END
1968
1969 C2V_VMENTRY(void, ensureInitialized, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1970 Klass* klass = UNPACK_PAIR(Klass, klass);
1971 if (klass == nullptr) {
1972 JVMCI_THROW(NullPointerException);
1973 }
1974 if (klass->should_be_initialized()) {
1975 InstanceKlass* k = InstanceKlass::cast(klass);
1976 k->initialize(CHECK);
1977 }
1978 C2V_END
1979
1980 C2V_VMENTRY(void, ensureLinked, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1981 CompilerThreadCanCallJava canCallJava(thread, true); // Linking requires Java calls
1982 Klass* klass = UNPACK_PAIR(Klass, klass);
1983 if (klass == nullptr) {
1984 JVMCI_THROW(NullPointerException);
1985 }
1986 if (klass->is_instance_klass()) {
1987 InstanceKlass* k = InstanceKlass::cast(klass);
1988 k->link_class(CHECK);
1989 }
1990 C2V_END
1991
1992 C2V_VMENTRY_0(jint, interpreterFrameSize, (JNIEnv* env, jobject, jobject bytecode_frame_handle))
1993 if (bytecode_frame_handle == nullptr) {
1994 JVMCI_THROW_0(NullPointerException);
1995 }
1996
1997 JVMCIObject top_bytecode_frame = JVMCIENV->wrap(bytecode_frame_handle);
1998 JVMCIObject bytecode_frame = top_bytecode_frame;
1999 int size = 0;
2000 int callee_parameters = 0;
2001 int callee_locals = 0;
2002 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
2003 int extra_args = method->max_stack() - JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
2004
2005 while (bytecode_frame.is_non_null()) {
2006 int locks = JVMCIENV->get_BytecodeFrame_numLocks(bytecode_frame);
2007 int temps = JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
2008 bool is_top_frame = (JVMCIENV->equals(bytecode_frame, top_bytecode_frame));
2009 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
2010
2011 int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
2012 temps + callee_parameters,
2013 extra_args,
2014 locks,
2015 callee_parameters,
2016 callee_locals,
2017 is_top_frame);
2018 size += frame_size;
2019
2020 callee_parameters = method->size_of_parameters();
2021 callee_locals = method->max_locals();
2022 extra_args = 0;
2023 bytecode_frame = JVMCIENV->get_BytecodePosition_caller(bytecode_frame);
2024 }
2025 return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
2026 C2V_END
2027
2028 C2V_VMENTRY(void, compileToBytecode, (JNIEnv* env, jobject, jobject lambda_form_handle))
2029 Handle lambda_form = JVMCIENV->asConstant(JVMCIENV->wrap(lambda_form_handle), JVMCI_CHECK);
2030 if (lambda_form->is_a(vmClasses::LambdaForm_klass())) {
2031 TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode");
2032 JavaValue result(T_VOID);
2033 JavaCalls::call_special(&result, lambda_form, vmClasses::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK);
2034 } else {
2035 JVMCI_THROW_MSG(IllegalArgumentException,
2036 err_msg("Unexpected type: %s", lambda_form->klass()->external_name()))
2037 }
2038 C2V_END
2039
2040 C2V_VMENTRY_0(jint, getIdentityHashCode, (JNIEnv* env, jobject, jobject object))
2041 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2042 return obj->identity_hash();
2043 C2V_END
2044
2045 C2V_VMENTRY_0(jboolean, isInternedString, (JNIEnv* env, jobject, jobject object))
2046 Handle str = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2047 if (!java_lang_String::is_instance(str())) {
2048 return false;
2049 }
2050 int len;
2051 jchar* name = java_lang_String::as_unicode_string(str(), len, CHECK_false);
2052 return (StringTable::lookup(name, len) != nullptr);
2053 C2V_END
2054
2055
2056 C2V_VMENTRY_NULL(jobject, unboxPrimitive, (JNIEnv* env, jobject, jobject object))
2057 if (object == nullptr) {
2058 JVMCI_THROW_0(NullPointerException);
2059 }
2060 Handle box = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2061 BasicType type = java_lang_boxing_object::basic_type(box());
2062 jvalue result;
2063 if (java_lang_boxing_object::get_value(box(), &result) == T_ILLEGAL) {
2064 return nullptr;
2065 }
2066 JVMCIObject boxResult = JVMCIENV->create_box(type, &result, JVMCI_CHECK_NULL);
2067 return JVMCIENV->get_jobject(boxResult);
2068 C2V_END
2069
2070 C2V_VMENTRY_NULL(jobject, boxPrimitive, (JNIEnv* env, jobject, jobject object))
2071 if (object == nullptr) {
2072 JVMCI_THROW_0(NullPointerException);
2073 }
2074 JVMCIObject box = JVMCIENV->wrap(object);
2075 BasicType type = JVMCIENV->get_box_type(box);
2076 if (type == T_ILLEGAL) {
2077 return nullptr;
2078 }
2079 jvalue value = JVMCIENV->get_boxed_value(type, box);
2080 JavaValue box_result(T_OBJECT);
2081 JavaCallArguments jargs;
2082 Klass* box_klass = nullptr;
2083 Symbol* box_signature = nullptr;
2084 #define BOX_CASE(bt, v, argtype, name) \
2085 case bt: \
2086 jargs.push_##argtype(value.v); \
2087 box_klass = vmClasses::name##_klass(); \
2088 box_signature = vmSymbols::name##_valueOf_signature(); \
2089 break
2090
2091 switch (type) {
2092 BOX_CASE(T_BOOLEAN, z, int, Boolean);
2093 BOX_CASE(T_BYTE, b, int, Byte);
2094 BOX_CASE(T_CHAR, c, int, Character);
2095 BOX_CASE(T_SHORT, s, int, Short);
2096 BOX_CASE(T_INT, i, int, Integer);
2097 BOX_CASE(T_LONG, j, long, Long);
2098 BOX_CASE(T_FLOAT, f, float, Float);
2099 BOX_CASE(T_DOUBLE, d, double, Double);
2100 default:
2101 ShouldNotReachHere();
2102 }
2103 #undef BOX_CASE
2104
2105 JavaCalls::call_static(&box_result,
2106 box_klass,
2107 vmSymbols::valueOf_name(),
2108 box_signature, &jargs, CHECK_NULL);
2109 oop hotspot_box = box_result.get_oop();
2110 JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false);
2111 return JVMCIENV->get_jobject(result);
2112 C2V_END
2113
2114 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2115 Klass* klass = UNPACK_PAIR(Klass, klass);
2116 if (klass == nullptr) {
2117 JVMCI_THROW_0(NullPointerException);
2118 }
2119 if (!klass->is_instance_klass()) {
2120 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
2121 return JVMCIENV->get_jobjectArray(methods);
2122 }
2123
2124 InstanceKlass* iklass = InstanceKlass::cast(klass);
2125 GrowableArray<Method*> constructors_array;
2126 for (int i = 0; i < iklass->methods()->length(); i++) {
2127 Method* m = iklass->methods()->at(i);
2128 if (m->is_initializer() && !m->is_static()) {
2129 constructors_array.append(m);
2130 }
2131 }
2132 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
2133 for (int i = 0; i < constructors_array.length(); i++) {
2134 methodHandle ctor(THREAD, constructors_array.at(i));
2135 JVMCIObject method = JVMCIENV->get_jvmci_method(ctor, JVMCI_CHECK_NULL);
2136 JVMCIENV->put_object_at(methods, i, method);
2137 }
2138 return JVMCIENV->get_jobjectArray(methods);
2139 C2V_END
2140
2141 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2142 Klass* klass = UNPACK_PAIR(Klass, klass);
2143 if (klass == nullptr) {
2144 JVMCI_THROW_0(NullPointerException);
2145 }
2146 if (!klass->is_instance_klass()) {
2147 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
2148 return JVMCIENV->get_jobjectArray(methods);
2149 }
2150
2151 InstanceKlass* iklass = InstanceKlass::cast(klass);
2152 GrowableArray<Method*> methods_array;
2153 for (int i = 0; i < iklass->methods()->length(); i++) {
2154 Method* m = iklass->methods()->at(i);
2155 if (!m->is_initializer() && !m->is_overpass()) {
2156 methods_array.append(m);
2157 }
2158 }
2159 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
2160 for (int i = 0; i < methods_array.length(); i++) {
2161 methodHandle mh(THREAD, methods_array.at(i));
2162 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
2163 JVMCIENV->put_object_at(methods, i, method);
2164 }
2165 return JVMCIENV->get_jobjectArray(methods);
2166 C2V_END
2167
2168 C2V_VMENTRY_NULL(jobjectArray, getDeclaredFieldsInfo, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2169 Klass* klass = UNPACK_PAIR(Klass, klass);
2170 if (klass == nullptr) {
2171 JVMCI_THROW_0(NullPointerException);
2172 }
2173 if (!klass->is_instance_klass()) {
2174 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "not an InstanceKlass");
2175 }
2176 InstanceKlass* iklass = InstanceKlass::cast(klass);
2177 int java_fields, injected_fields;
2178 GrowableArray<FieldInfo>* fields = FieldInfoStream::create_FieldInfoArray(iklass->fieldinfo_stream(), &java_fields, &injected_fields);
2179 JVMCIObjectArray array = JVMCIENV->new_FieldInfo_array(fields->length(), JVMCIENV);
2180 for (int i = 0; i < fields->length(); i++) {
2181 JVMCIObject field_info = JVMCIENV->new_FieldInfo(fields->adr_at(i), JVMCI_CHECK_NULL);
2182 JVMCIENV->put_object_at(array, i, field_info);
2183 }
2184 return array.as_jobject();
2185 C2V_END
2186
2187 static jobject read_field_value(Handle obj, long displacement, jchar type_char, bool is_static, Thread* THREAD, JVMCIEnv* JVMCIENV) {
2188
2189 BasicType basic_type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_NULL);
2190 int basic_type_elemsize = type2aelembytes(basic_type);
2191 if (displacement < 0 || ((size_t) displacement + basic_type_elemsize > HeapWordSize * obj->size())) {
2192 // Reading outside of the object bounds
2193 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading outside object bounds");
2194 }
2195
2196 // Perform basic sanity checks on the read. Primitive reads are permitted to read outside the
2197 // bounds of their fields but object reads must map exactly onto the underlying oop slot.
2198 bool aligned = (displacement % basic_type_elemsize) == 0;
2199 if (!aligned) {
2200 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "read is unaligned");
2201 }
2202 if (basic_type == T_OBJECT) {
2203 if (obj->is_objArray()) {
2204 if (displacement < arrayOopDesc::base_offset_in_bytes(T_OBJECT)) {
2205 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
2206 }
2207 if (displacement + heapOopSize > arrayOopDesc::base_offset_in_bytes(T_OBJECT) + arrayOop(obj())->length() * heapOopSize) {
2208 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading after last array element");
2209 }
2210 if (((displacement - arrayOopDesc::base_offset_in_bytes(T_OBJECT)) % heapOopSize) != 0) {
2211 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "misaligned object read from array");
2212 }
2213 } else if (obj->is_instance()) {
2214 InstanceKlass* klass = InstanceKlass::cast(is_static ? java_lang_Class::as_Klass(obj()) : obj->klass());
2215 fieldDescriptor fd;
2216 if (!klass->find_field_from_offset(displacement, is_static, &fd)) {
2217 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Can't find field at displacement %d in object of type %s", (int) displacement, klass->external_name()));
2218 }
2219 if (fd.field_type() != T_OBJECT && fd.field_type() != T_ARRAY) {
2220 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Field at displacement %d in object of type %s is %s but expected %s", (int) displacement,
2221 klass->external_name(), type2name(fd.field_type()), type2name(basic_type)));
2222 }
2223 } else if (obj->is_typeArray()) {
2224 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Can't read objects from primitive array");
2225 } else {
2226 ShouldNotReachHere();
2227 }
2228 } else {
2229 if (obj->is_objArray()) {
2230 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Reading primitive from object array");
2231 } else if (obj->is_typeArray()) {
2232 if (displacement < arrayOopDesc::base_offset_in_bytes(ArrayKlass::cast(obj->klass())->element_type())) {
2233 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
2234 }
2235 }
2236 }
2237
2238 jlong value = 0;
2239
2240 // Treat all reads as volatile for simplicity as this function can be used
2241 // both for reading Java fields declared as volatile as well as for constant
2242 // folding Unsafe.get* methods with volatile semantics.
2243
2244 switch (basic_type) {
2245 case T_BOOLEAN: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jboolean>(displacement)); break;
2246 case T_BYTE: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jbyte>(displacement)); break;
2247 case T_SHORT: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jshort>(displacement)); break;
2248 case T_CHAR: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jchar>(displacement)); break;
2249 case T_FLOAT:
2250 case T_INT: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jint>(displacement)); break;
2251 case T_DOUBLE:
2252 case T_LONG: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jlong>(displacement)); break;
2253
2254 case T_OBJECT: {
2255 if (displacement == java_lang_Class::component_mirror_offset() && java_lang_Class::is_instance(obj()) &&
2256 (java_lang_Class::as_Klass(obj()) == nullptr || !java_lang_Class::as_Klass(obj())->is_array_klass())) {
2257 // Class.componentType for non-array classes can transiently contain an int[] that's
2258 // used for locking so always return null to mimic Class.getComponentType()
2259 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
2260 }
2261
2262 // Perform the read including any barriers required to make the reference strongly reachable
2263 // since it will be wrapped as a JavaConstant.
2264 oop value = obj->obj_field_access<MO_SEQ_CST | ON_UNKNOWN_OOP_REF>(displacement);
2265
2266 if (value == nullptr) {
2267 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
2268 } else {
2269 if (value != nullptr && !oopDesc::is_oop(value)) {
2270 // Throw an exception to improve debuggability. This check isn't totally reliable because
2271 // is_oop doesn't try to be completety safe but for most invalid values it provides a good
2272 // enough answer. It possible to crash in the is_oop call but that just means the crash happens
2273 // closer to where things went wrong.
2274 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Read bad oop " INTPTR_FORMAT " at offset " JLONG_FORMAT " in object " INTPTR_FORMAT " of type %s",
2275 p2i(value), displacement, p2i(obj()), obj->klass()->external_name()));
2276 }
2277
2278 JVMCIObject result = JVMCIENV->get_object_constant(value);
2279 return JVMCIENV->get_jobject(result);
2280 }
2281 }
2282
2283 default:
2284 ShouldNotReachHere();
2285 }
2286 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, value, JVMCI_CHECK_NULL);
2287 return JVMCIENV->get_jobject(result);
2288 }
2289
2290 C2V_VMENTRY_NULL(jobject, readStaticFieldValue, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), long displacement, jchar type_char))
2291 Klass* klass = UNPACK_PAIR(Klass, klass);
2292 Handle obj(THREAD, klass->java_mirror());
2293 return read_field_value(obj, displacement, type_char, true, THREAD, JVMCIENV);
2294 C2V_END
2295
2296 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, ARGUMENT_PAIR(expected_type), long displacement, jchar type_char))
2297 if (object == nullptr) {
2298 JVMCI_THROW_0(NullPointerException);
2299 }
2300
2301 // asConstant will throw an NPE if a constant contains null
2302 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2303
2304 Klass* expected_klass = UNPACK_PAIR(Klass, expected_type);
2305 if (expected_klass != nullptr) {
2306 InstanceKlass* expected_iklass = InstanceKlass::cast(expected_klass);
2307 if (!obj->is_a(expected_iklass)) {
2308 // Not of the expected type
2309 return nullptr;
2310 }
2311 }
2312 bool is_static = expected_klass == nullptr && java_lang_Class::is_instance(obj()) && displacement >= InstanceMirrorKlass::offset_of_static_fields();
2313 return read_field_value(obj, displacement, type_char, is_static, THREAD, JVMCIENV);
2314 C2V_END
2315
2316 C2V_VMENTRY_0(jboolean, isInstance, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jobject object))
2317 Klass* klass = UNPACK_PAIR(Klass, klass);
2318 if (object == nullptr || klass == nullptr) {
2319 JVMCI_THROW_0(NullPointerException);
2320 }
2321 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2322 return obj->is_a(klass);
2323 C2V_END
2324
2325 C2V_VMENTRY_0(jboolean, isAssignableFrom, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(subklass)))
2326 Klass* klass = UNPACK_PAIR(Klass, klass);
2327 Klass* subklass = UNPACK_PAIR(Klass, subklass);
2328 if (klass == nullptr || subklass == nullptr) {
2329 JVMCI_THROW_0(NullPointerException);
2330 }
2331 return subklass->is_subtype_of(klass);
2332 C2V_END
2333
2334 C2V_VMENTRY_0(jboolean, isTrustedForIntrinsics, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2335 Klass* klass = UNPACK_PAIR(Klass, klass);
2336 if (klass == nullptr) {
2337 JVMCI_THROW_0(NullPointerException);
2338 }
2339 InstanceKlass* ik = InstanceKlass::cast(klass);
2340 if (ik->class_loader_data()->is_boot_class_loader_data() || ik->class_loader_data()->is_platform_class_loader_data()) {
2341 return true;
2342 }
2343 return false;
2344 C2V_END
2345
2346 C2V_VMENTRY_NULL(jobject, asJavaType, (JNIEnv* env, jobject, jobject object))
2347 if (object == nullptr) {
2348 JVMCI_THROW_0(NullPointerException);
2349 }
2350 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2351 if (java_lang_Class::is_instance(obj())) {
2352 if (java_lang_Class::is_primitive(obj())) {
2353 JVMCIObject type = JVMCIENV->get_jvmci_primitive_type(java_lang_Class::primitive_type(obj()));
2354 return JVMCIENV->get_jobject(type);
2355 }
2356 Klass* klass = java_lang_Class::as_Klass(obj());
2357 JVMCIKlassHandle klass_handle(THREAD);
2358 klass_handle = klass;
2359 JVMCIObject type = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
2360 return JVMCIENV->get_jobject(type);
2361 }
2362 return nullptr;
2363 C2V_END
2364
2365
2366 C2V_VMENTRY_NULL(jobject, asString, (JNIEnv* env, jobject, jobject object))
2367 if (object == nullptr) {
2368 JVMCI_THROW_0(NullPointerException);
2369 }
2370 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2371 const char* str = java_lang_String::as_utf8_string(obj());
2372 JVMCIObject result = JVMCIENV->create_string(str, JVMCI_CHECK_NULL);
2373 return JVMCIENV->get_jobject(result);
2374 C2V_END
2375
2376
2377 C2V_VMENTRY_0(jboolean, equals, (JNIEnv* env, jobject, jobject x, jlong xHandle, jobject y, jlong yHandle))
2378 if (x == nullptr || y == nullptr) {
2379 JVMCI_THROW_0(NullPointerException);
2380 }
2381 return JVMCIENV->resolve_oop_handle(xHandle) == JVMCIENV->resolve_oop_handle(yHandle);
2382 C2V_END
2383
2384 C2V_VMENTRY_NULL(jobject, getJavaMirror, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2385 Klass* klass = UNPACK_PAIR(Klass, klass);
2386 if (klass == nullptr) {
2387 JVMCI_THROW_0(NullPointerException);
2388 }
2389 Handle mirror(THREAD, klass->java_mirror());
2390 JVMCIObject result = JVMCIENV->get_object_constant(mirror());
2391 return JVMCIENV->get_jobject(result);
2392 C2V_END
2393
2394
2395 C2V_VMENTRY_0(jint, getArrayLength, (JNIEnv* env, jobject, jobject x))
2396 if (x == nullptr) {
2397 JVMCI_THROW_0(NullPointerException);
2398 }
2399 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2400 if (xobj->klass()->is_array_klass()) {
2401 return arrayOop(xobj())->length();
2402 }
2403 return -1;
2404 C2V_END
2405
2406
2407 C2V_VMENTRY_NULL(jobject, readArrayElement, (JNIEnv* env, jobject, jobject x, int index))
2408 if (x == nullptr) {
2409 JVMCI_THROW_0(NullPointerException);
2410 }
2411 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_NULL);
2412 if (xobj->klass()->is_array_klass()) {
2413 arrayOop array = arrayOop(xobj());
2414 BasicType element_type = ArrayKlass::cast(array->klass())->element_type();
2415 if (index < 0 || index >= array->length()) {
2416 return nullptr;
2417 }
2418 JVMCIObject result;
2419
2420 if (element_type == T_OBJECT) {
2421 result = JVMCIENV->get_object_constant(objArrayOop(xobj())->obj_at(index));
2422 if (result.is_null()) {
2423 result = JVMCIENV->get_JavaConstant_NULL_POINTER();
2424 }
2425 } else {
2426 jvalue value;
2427 switch (element_type) {
2428 case T_DOUBLE: value.d = typeArrayOop(xobj())->double_at(index); break;
2429 case T_FLOAT: value.f = typeArrayOop(xobj())->float_at(index); break;
2430 case T_LONG: value.j = typeArrayOop(xobj())->long_at(index); break;
2431 case T_INT: value.i = typeArrayOop(xobj())->int_at(index); break;
2432 case T_SHORT: value.s = typeArrayOop(xobj())->short_at(index); break;
2433 case T_CHAR: value.c = typeArrayOop(xobj())->char_at(index); break;
2434 case T_BYTE: value.b = typeArrayOop(xobj())->byte_at(index); break;
2435 case T_BOOLEAN: value.z = typeArrayOop(xobj())->byte_at(index) & 1; break;
2436 default: ShouldNotReachHere();
2437 }
2438 result = JVMCIENV->create_box(element_type, &value, JVMCI_CHECK_NULL);
2439 }
2440 assert(!result.is_null(), "must have a value");
2441 return JVMCIENV->get_jobject(result);
2442 }
2443 return nullptr;;
2444 C2V_END
2445
2446
2447 C2V_VMENTRY_0(jint, arrayBaseOffset, (JNIEnv* env, jobject, jchar type_char))
2448 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
2449 return arrayOopDesc::base_offset_in_bytes(type);
2450 C2V_END
2451
2452 C2V_VMENTRY_0(jint, arrayIndexScale, (JNIEnv* env, jobject, jchar type_char))
2453 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
2454 return type2aelembytes(type);
2455 C2V_END
2456
2457 C2V_VMENTRY(void, clearOopHandle, (JNIEnv* env, jobject, jlong oop_handle))
2458 if (oop_handle == 0L) {
2459 JVMCI_THROW(NullPointerException);
2460 }
2461 // Assert before nulling out, for better debugging.
2462 assert(JVMCIRuntime::is_oop_handle(oop_handle), "precondition");
2463 oop* oop_ptr = (oop*) oop_handle;
2464 NativeAccess<>::oop_store(oop_ptr, (oop) nullptr);
2465 C2V_END
2466
2467 C2V_VMENTRY(void, releaseClearedOopHandles, (JNIEnv* env, jobject))
2468 JVMCIENV->runtime()->release_cleared_oop_handles();
2469 C2V_END
2470
2471 static void requireJVMCINativeLibrary(JVMCI_TRAPS) {
2472 if (!UseJVMCINativeLibrary) {
2473 JVMCI_THROW_MSG(UnsupportedOperationException, "JVMCI shared library is not enabled (requires -XX:+UseJVMCINativeLibrary)");
2474 }
2475 }
2476
2477 C2V_VMENTRY_NULL(jlongArray, registerNativeMethods, (JNIEnv* env, jobject, jclass mirror))
2478 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2479 requireInHotSpot("registerNativeMethods", JVMCI_CHECK_NULL);
2480 char* sl_path;
2481 void* sl_handle;
2482 JVMCIRuntime* runtime;
2483 {
2484 // Ensure the JVMCI shared library runtime is initialized.
2485 PEER_JVMCIENV_FROM_THREAD(THREAD, false);
2486 PEER_JVMCIENV->check_init(JVMCI_CHECK_NULL);
2487
2488 HandleMark hm(THREAD);
2489 runtime = JVMCI::compiler_runtime(thread);
2490 if (PEER_JVMCIENV->has_pending_exception()) {
2491 PEER_JVMCIENV->describe_pending_exception(tty);
2492 }
2493 sl_handle = JVMCI::get_shared_library(sl_path, false);
2494 if (sl_handle == nullptr) {
2495 JVMCI_THROW_MSG_0(InternalError, err_msg("Error initializing JVMCI runtime %d", runtime->id()));
2496 }
2497 }
2498
2499 if (mirror == nullptr) {
2500 JVMCI_THROW_0(NullPointerException);
2501 }
2502 Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
2503 if (klass == nullptr || !klass->is_instance_klass()) {
2504 JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type");
2505 }
2506
2507 InstanceKlass* iklass = InstanceKlass::cast(klass);
2508 for (int i = 0; i < iklass->methods()->length(); i++) {
2509 methodHandle method(THREAD, iklass->methods()->at(i));
2510 if (method->is_native()) {
2511
2512 // Compute argument size
2513 int args_size = 1 // JNIEnv
2514 + (method->is_static() ? 1 : 0) // class for static methods
2515 + method->size_of_parameters(); // actual parameters
2516
2517 // 1) Try JNI short style
2518 stringStream st;
2519 char* pure_name = NativeLookup::pure_jni_name(method);
2520 guarantee(pure_name != nullptr, "Illegal native method name encountered");
2521 os::print_jni_name_prefix_on(&st, args_size);
2522 st.print_raw(pure_name);
2523 os::print_jni_name_suffix_on(&st, args_size);
2524 char* jni_name = st.as_string();
2525
2526 address entry = (address) os::dll_lookup(sl_handle, jni_name);
2527 if (entry == nullptr) {
2528 // 2) Try JNI long style
2529 st.reset();
2530 char* long_name = NativeLookup::long_jni_name(method);
2531 guarantee(long_name != nullptr, "Illegal native method name encountered");
2532 os::print_jni_name_prefix_on(&st, args_size);
2533 st.print_raw(pure_name);
2534 st.print_raw(long_name);
2535 os::print_jni_name_suffix_on(&st, args_size);
2536 char* jni_long_name = st.as_string();
2537 entry = (address) os::dll_lookup(sl_handle, jni_long_name);
2538 if (entry == nullptr) {
2539 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [neither %s nor %s exist in %s]",
2540 method->name_and_sig_as_C_string(),
2541 jni_name, jni_long_name, sl_path));
2542 }
2543 }
2544
2545 if (method->has_native_function() && entry != method->native_function()) {
2546 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [cannot re-link from " PTR_FORMAT " to " PTR_FORMAT "]",
2547 method->name_and_sig_as_C_string(), p2i(method->native_function()), p2i(entry)));
2548 }
2549 method->set_native_function(entry, Method::native_bind_event_is_interesting);
2550 log_debug(jni, resolve)("[Dynamic-linking native method %s.%s ... JNI] @ " PTR_FORMAT,
2551 method->method_holder()->external_name(),
2552 method->name()->as_C_string(),
2553 p2i((void*) entry));
2554 }
2555 }
2556
2557 typeArrayOop info_oop = oopFactory::new_longArray(4, CHECK_0);
2558 jlongArray info = (jlongArray) JNIHandles::make_local(THREAD, info_oop);
2559 runtime->init_JavaVM_info(info, JVMCI_CHECK_0);
2560 return info;
2561 C2V_END
2562
2563 C2V_VMENTRY_PREFIX(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject c2vm))
2564 if (thread == nullptr || thread->libjvmci_runtime() == nullptr) {
2565 // Called from unattached JVMCI shared library thread
2566 return false;
2567 }
2568 if (thread->jni_environment() == env) {
2569 C2V_BLOCK(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject))
2570 JVMCITraceMark jtm("isCurrentThreadAttached");
2571 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2572 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2573 if (runtime == nullptr || !runtime->has_shared_library_javavm()) {
2574 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in isCurrentThreadAttached");
2575 }
2576 JNIEnv* peerEnv;
2577 return runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) == JNI_OK;
2578 }
2579 return true;
2580 C2V_END
2581
2582 C2V_VMENTRY_PREFIX(jlong, getCurrentJavaThread, (JNIEnv* env, jobject c2vm))
2583 if (thread == nullptr) {
2584 // Called from unattached JVMCI shared library thread
2585 return 0L;
2586 }
2587 return (jlong) p2i(thread);
2588 C2V_END
2589
2590 // Attaches a thread started in a JVMCI shared library to a JavaThread and JVMCI runtime.
2591 static void attachSharedLibraryThread(JNIEnv* env, jbyteArray name, jboolean as_daemon) {
2592 JavaVM* javaVM = nullptr;
2593 jint res = env->GetJavaVM(&javaVM);
2594 if (res != JNI_OK) {
2595 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Error getting shared library JavaVM from shared library JNIEnv: %d", res));
2596 }
2597 extern struct JavaVM_ main_vm;
2598 JNIEnv* hotspotEnv;
2599
2600 int name_len = env->GetArrayLength(name);
2601 char name_buf[64]; // Cannot use Resource heap as it requires a current thread
2602 int to_copy = MIN2(name_len, (int) sizeof(name_buf) - 1);
2603 env->GetByteArrayRegion(name, 0, to_copy, (jbyte*) name_buf);
2604 name_buf[to_copy] = '\0';
2605 JavaVMAttachArgs attach_args;
2606 attach_args.version = JNI_VERSION_1_2;
2607 attach_args.name = name_buf;
2608 attach_args.group = nullptr;
2609 res = as_daemon ? main_vm.AttachCurrentThreadAsDaemon((void**)&hotspotEnv, &attach_args) :
2610 main_vm.AttachCurrentThread((void**)&hotspotEnv, &attach_args);
2611 if (res != JNI_OK) {
2612 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Trying to attach thread returned %d", res));
2613 }
2614 JavaThread* thread = JavaThread::thread_from_jni_environment(hotspotEnv);
2615 const char* attach_error;
2616 {
2617 // Transition to VM
2618 JVMCI_VM_ENTRY_MARK
2619 attach_error = JVMCIRuntime::attach_shared_library_thread(thread, javaVM);
2620 // Transition back to Native
2621 }
2622 if (attach_error != nullptr) {
2623 JNI_THROW("attachCurrentThread", InternalError, attach_error);
2624 }
2625 }
2626
2627 C2V_VMENTRY_PREFIX(jboolean, attachCurrentThread, (JNIEnv* env, jobject c2vm, jbyteArray name, jboolean as_daemon, jlongArray javaVM_info))
2628 if (thread == nullptr) {
2629 attachSharedLibraryThread(env, name, as_daemon);
2630 return true;
2631 }
2632 if (thread->jni_environment() == env) {
2633 // Called from HotSpot
2634 C2V_BLOCK(jboolean, attachCurrentThread, (JNIEnv* env, jobject, jboolean))
2635 JVMCITraceMark jtm("attachCurrentThread");
2636 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2637
2638 JVMCIRuntime* runtime = JVMCI::compiler_runtime(thread);
2639 JNIEnv* peerJNIEnv;
2640 if (runtime->has_shared_library_javavm()) {
2641 if (runtime->GetEnv(thread, (void**)&peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2642 // Already attached
2643 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0);
2644 return false;
2645 }
2646 }
2647
2648 {
2649 // Ensure the JVMCI shared library runtime is initialized.
2650 PEER_JVMCIENV_FROM_THREAD(THREAD, false);
2651 PEER_JVMCIENV->check_init(JVMCI_CHECK_0);
2652
2653 HandleMark hm(thread);
2654 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(PEER_JVMCIENV);
2655 if (PEER_JVMCIENV->has_pending_exception()) {
2656 PEER_JVMCIENV->describe_pending_exception(tty);
2657 }
2658 char* sl_path;
2659 if (JVMCI::get_shared_library(sl_path, false) == nullptr) {
2660 JVMCI_THROW_MSG_0(InternalError, "Error initializing JVMCI runtime");
2661 }
2662 }
2663
2664 JavaVMAttachArgs attach_args;
2665 attach_args.version = JNI_VERSION_1_2;
2666 attach_args.name = const_cast<char*>(thread->name());
2667 attach_args.group = nullptr;
2668 if (runtime->GetEnv(thread, (void**) &peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2669 return false;
2670 }
2671 jint res = as_daemon ? runtime->AttachCurrentThreadAsDaemon(thread, (void**) &peerJNIEnv, &attach_args) :
2672 runtime->AttachCurrentThread(thread, (void**) &peerJNIEnv, &attach_args);
2673
2674 if (res == JNI_OK) {
2675 guarantee(peerJNIEnv != nullptr, "must be");
2676 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0);
2677 JVMCI_event_1("attached to JavaVM[%d] for JVMCI runtime %d", runtime->get_shared_library_javavm_id(), runtime->id());
2678 return true;
2679 }
2680 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, attach_args.name));
2681 }
2682 // Called from JVMCI shared library
2683 return false;
2684 C2V_END
2685
2686 C2V_VMENTRY_PREFIX(jboolean, detachCurrentThread, (JNIEnv* env, jobject c2vm, jboolean release))
2687 if (thread == nullptr) {
2688 // Called from unattached JVMCI shared library thread
2689 JNI_THROW_("detachCurrentThread", IllegalStateException, "Cannot detach non-attached thread", false);
2690 }
2691 if (thread->jni_environment() == env) {
2692 // Called from HotSpot
2693 C2V_BLOCK(void, detachCurrentThread, (JNIEnv* env, jobject))
2694 JVMCITraceMark jtm("detachCurrentThread");
2695 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2696 requireInHotSpot("detachCurrentThread", JVMCI_CHECK_0);
2697 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2698 if (runtime == nullptr || !runtime->has_shared_library_javavm()) {
2699 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in detachCurrentThread");
2700 }
2701 JNIEnv* peerEnv;
2702
2703 if (runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) != JNI_OK) {
2704 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("Cannot detach non-attached thread: %s", thread->name()));
2705 }
2706 jint res = runtime->DetachCurrentThread(thread);
2707 if (res != JNI_OK) {
2708 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, thread->name()));
2709 }
2710 JVMCI_event_1("detached from JavaVM[%d] for JVMCI runtime %d",
2711 runtime->get_shared_library_javavm_id(), runtime->id());
2712 if (release) {
2713 return runtime->detach_thread(thread, "user thread detach");
2714 }
2715 } else {
2716 // Called from attached JVMCI shared library thread
2717 if (release) {
2718 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread cannot release JVMCI shared library JavaVM", false);
2719 }
2720 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2721 if (runtime == nullptr) {
2722 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread should have a JVMCI runtime", false);
2723 }
2724 {
2725 // Transition to VM
2726 C2V_BLOCK(jboolean, detachCurrentThread, (JNIEnv* env, jobject))
2727 // Cannot destroy shared library JavaVM as we're about to return to it.
2728 runtime->detach_thread(thread, "shared library thread detach", false);
2729 JVMCI_event_1("detaching JVMCI shared library thread from HotSpot JavaVM");
2730 // Transition back to Native
2731 }
2732 extern struct JavaVM_ main_vm;
2733 jint res = main_vm.DetachCurrentThread();
2734 if (res != JNI_OK) {
2735 JNI_THROW_("detachCurrentThread", InternalError, "Cannot detach non-attached thread", false);
2736 }
2737 }
2738 return false;
2739 C2V_END
2740
2741 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle, jboolean callPostTranslation))
2742 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2743 if (obj_handle == nullptr) {
2744 return 0L;
2745 }
2746 PEER_JVMCIENV_FROM_THREAD(THREAD, !JVMCIENV->is_hotspot());
2747 CompilerThreadCanCallJava canCallJava(thread, PEER_JVMCIENV->is_hotspot());
2748 PEER_JVMCIENV->check_init(JVMCI_CHECK_0);
2749
2750 JVMCIEnv* thisEnv = JVMCIENV;
2751 JVMCIObject obj = thisEnv->wrap(obj_handle);
2752 JVMCIObject result;
2753 if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) {
2754 methodHandle method(THREAD, thisEnv->asMethod(obj));
2755 result = PEER_JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_0);
2756 } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) {
2757 Klass* klass = thisEnv->asKlass(obj);
2758 JVMCIKlassHandle klass_handle(THREAD);
2759 klass_handle = klass;
2760 result = PEER_JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_0);
2761 } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) {
2762 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0);
2763 result = PEER_JVMCIENV->get_jvmci_primitive_type(type);
2764 } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) ||
2765 thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) {
2766 Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0);
2767 result = PEER_JVMCIENV->get_object_constant(constant());
2768 } else if (thisEnv->isa_HotSpotNmethod(obj)) {
2769 if (PEER_JVMCIENV->is_hotspot()) {
2770 JVMCINMethodHandle nmethod_handle(THREAD);
2771 nmethod* nm = JVMCIENV->get_nmethod(obj, nmethod_handle);
2772 if (nm != nullptr) {
2773 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2774 if (data != nullptr) {
2775 // Only the mirror in the HotSpot heap is accessible
2776 // through JVMCINMethodData
2777 oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true);
2778 if (nmethod_mirror != nullptr) {
2779 result = HotSpotJVMCI::wrap(nmethod_mirror);
2780 }
2781 }
2782 }
2783 }
2784
2785 if (result.is_null()) {
2786 JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj);
2787 methodHandle mh(THREAD, thisEnv->asMethod(methodObject));
2788 jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj);
2789 jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj);
2790 JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj);
2791 const char* cstring = name_string.is_null() ? nullptr : thisEnv->as_utf8_string(name_string);
2792 // Create a new HotSpotNmethod instance in the peer runtime
2793 result = PEER_JVMCIENV->new_HotSpotNmethod(mh, cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0);
2794 JVMCINMethodHandle nmethod_handle(THREAD);
2795 nmethod* nm = JVMCIENV->get_nmethod(obj, nmethod_handle);
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 JVMCINMethodHandle nmethod_handle(THREAD);
2848 JVMCIENV->get_nmethod(code, nmethod_handle);
2849 C2V_END
2850
2851 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2852 JVMCIObject code = JVMCIENV->wrap(code_handle);
2853 CodeBlob* cb = JVMCIENV->get_code_blob(code);
2854 if (cb == nullptr) {
2855 return nullptr;
2856 }
2857 // Make a resource copy of code before the allocation causes a safepoint
2858 int code_size = cb->code_size();
2859 jbyte* code_bytes = NEW_RESOURCE_ARRAY(jbyte, code_size);
2860 memcpy(code_bytes, (jbyte*) cb->code_begin(), code_size);
2861
2862 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2863 JVMCIENV->copy_bytes_from(code_bytes, result, 0, code_size);
2864 return JVMCIENV->get_jbyteArray(result);
2865 C2V_END
2866
2867 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
2868 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2869 methodHandle m(THREAD, UNPACK_PAIR(Method, method));
2870 oop executable;
2871 if (m->is_initializer()) {
2872 if (m->is_static_initializer()) {
2873 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2874 "Cannot create java.lang.reflect.Method for class initializer");
2875 }
2876 executable = Reflection::new_constructor(m, CHECK_NULL);
2877 } else {
2878 executable = Reflection::new_method(m, false, CHECK_NULL);
2879 }
2880 return JNIHandles::make_local(THREAD, executable);
2881 C2V_END
2882
2883 static InstanceKlass* check_field(Klass* klass, jint index, JVMCI_TRAPS) {
2884 if (!klass->is_instance_klass()) {
2885 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2886 err_msg("Expected non-primitive type, got %s", klass->external_name()));
2887 }
2888 InstanceKlass* iklass = InstanceKlass::cast(klass);
2889 if (index < 0 || index > iklass->total_fields_count()) {
2890 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2891 err_msg("Field index %d out of bounds for %s", index, klass->external_name()));
2892 }
2893 return iklass;
2894 }
2895
2896 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index))
2897 requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL);
2898 Klass* klass = UNPACK_PAIR(Klass, klass);
2899 InstanceKlass* iklass = check_field(klass, index, JVMCIENV);
2900 fieldDescriptor fd(iklass, index);
2901 oop reflected = Reflection::new_field(&fd, CHECK_NULL);
2902 return JNIHandles::make_local(THREAD, reflected);
2903 C2V_END
2904
2905 static jbyteArray get_encoded_annotation_data(InstanceKlass* holder, AnnotationArray* annotations_array, bool for_class,
2906 jint filter_length, jlong filter_klass_pointers,
2907 JavaThread* THREAD, JVMCIEnv* JVMCIENV) {
2908 // Get a ConstantPool object for annotation parsing
2909 Handle jcp = reflect_ConstantPool::create(CHECK_NULL);
2910 reflect_ConstantPool::set_cp(jcp(), holder->constants());
2911
2912 // load VMSupport
2913 Symbol* klass = vmSymbols::jdk_internal_vm_VMSupport();
2914 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK_NULL);
2915
2916 InstanceKlass* vm_support = InstanceKlass::cast(k);
2917 if (vm_support->should_be_initialized()) {
2918 vm_support->initialize(CHECK_NULL);
2919 }
2920
2921 typeArrayOop annotations_oop = Annotations::make_java_array(annotations_array, CHECK_NULL);
2922 typeArrayHandle annotations = typeArrayHandle(THREAD, annotations_oop);
2923
2924 InstanceKlass** filter = filter_length == 1 ?
2925 (InstanceKlass**) &filter_klass_pointers:
2926 (InstanceKlass**) filter_klass_pointers;
2927 objArrayOop filter_oop = oopFactory::new_objArray(vmClasses::Class_klass(), filter_length, CHECK_NULL);
2928 objArrayHandle filter_classes(THREAD, filter_oop);
2929 for (int i = 0; i < filter_length; i++) {
2930 filter_classes->obj_at_put(i, filter[i]->java_mirror());
2931 }
2932
2933 // invoke VMSupport.encodeAnnotations
2934 JavaValue result(T_OBJECT);
2935 JavaCallArguments args;
2936 args.push_oop(annotations);
2937 args.push_oop(Handle(THREAD, holder->java_mirror()));
2938 args.push_oop(jcp);
2939 args.push_int(for_class);
2940 args.push_oop(filter_classes);
2941 Symbol* signature = vmSymbols::encodeAnnotations_signature();
2942 JavaCalls::call_static(&result,
2943 vm_support,
2944 vmSymbols::encodeAnnotations_name(),
2945 signature,
2946 &args,
2947 CHECK_NULL);
2948
2949 oop res = result.get_oop();
2950 if (JVMCIENV->is_hotspot()) {
2951 return (jbyteArray) JNIHandles::make_local(THREAD, res);
2952 }
2953
2954 typeArrayOop ba = typeArrayOop(res);
2955 int ba_len = ba->length();
2956 jbyte* ba_buf = NEW_RESOURCE_ARRAY_IN_THREAD_RETURN_NULL(THREAD, jbyte, ba_len);
2957 if (ba_buf == nullptr) {
2958 JVMCI_THROW_MSG_NULL(InternalError,
2959 err_msg("could not allocate %d bytes", ba_len));
2960
2961 }
2962 memcpy(ba_buf, ba->byte_at_addr(0), ba_len);
2963 JVMCIPrimitiveArray ba_dest = JVMCIENV->new_byteArray(ba_len, JVMCI_CHECK_NULL);
2964 JVMCIENV->copy_bytes_from(ba_buf, ba_dest, 0, ba_len);
2965 return JVMCIENV->get_jbyteArray(ba_dest);
2966 }
2967
2968 C2V_VMENTRY_NULL(jbyteArray, getEncodedClassAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass),
2969 jobject filter, jint filter_length, jlong filter_klass_pointers))
2970 CompilerThreadCanCallJava canCallJava(thread, true); // Requires Java support
2971 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass));
2972 return get_encoded_annotation_data(holder, holder->class_annotations(), true, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2973 C2V_END
2974
2975 C2V_VMENTRY_NULL(jbyteArray, getEncodedExecutableAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(method),
2976 jobject filter, jint filter_length, jlong filter_klass_pointers))
2977 CompilerThreadCanCallJava canCallJava(thread, true); // Requires Java support
2978 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
2979 return get_encoded_annotation_data(method->method_holder(), method->annotations(), false, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2980 C2V_END
2981
2982 C2V_VMENTRY_NULL(jbyteArray, getEncodedFieldAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index,
2983 jobject filter, jint filter_length, jlong filter_klass_pointers))
2984 CompilerThreadCanCallJava canCallJava(thread, true); // Requires Java support
2985 InstanceKlass* holder = check_field(InstanceKlass::cast(UNPACK_PAIR(Klass, klass)), index, JVMCIENV);
2986 fieldDescriptor fd(holder, index);
2987 return get_encoded_annotation_data(holder, fd.annotations(), false, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2988 C2V_END
2989
2990 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current))
2991 FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address);
2992 int result_length = 0;
2993 for (FailedSpeculation* fs = head; fs != nullptr; fs = fs->next()) {
2994 result_length++;
2995 }
2996 int current_length = 0;
2997 JVMCIObjectArray current_array = nullptr;
2998 if (current != nullptr) {
2999 current_array = JVMCIENV->wrap(current);
3000 current_length = JVMCIENV->get_length(current_array);
3001 if (current_length == result_length) {
3002 // No new failures
3003 return current;
3004 }
3005 }
3006 JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL);
3007 int result_index = 0;
3008 for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) {
3009 assert(fs != nullptr, "npe");
3010 JVMCIPrimitiveArray entry;
3011 if (result_index < current_length) {
3012 entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index);
3013 } else {
3014 entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL);
3015 JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len());
3016 }
3017 JVMCIENV->put_object_at(result, result_index++, entry);
3018 }
3019 return JVMCIENV->get_jobjectArray(result);
3020 C2V_END
3021
3022 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
3023 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
3024 MethodData* method_data = get_profiling_method_data(method, CHECK_0);
3025 return (jlong) method_data->get_failed_speculations_address();
3026 C2V_END
3027
3028 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address))
3029 FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address);
3030 C2V_END
3031
3032 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj))
3033 JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj);
3034 int speculation_len = JVMCIENV->get_length(speculation_handle);
3035 char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len);
3036 JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len);
3037 return FailedSpeculation::add_failed_speculation(nullptr, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len);
3038 C2V_END
3039
3040 C2V_VMENTRY(void, callSystemExit, (JNIEnv* env, jobject, jint status))
3041 if (!JVMCIENV->is_hotspot()) {
3042 // It's generally not safe to call Java code before the module system is initialized
3043 if (!Universe::is_module_initialized()) {
3044 JVMCI_event_1("callSystemExit(%d) before Universe::is_module_initialized() -> direct VM exit", status);
3045 vm_exit_during_initialization();
3046 }
3047 }
3048 CompilerThreadCanCallJava canCallJava(thread, true);
3049 JavaValue result(T_VOID);
3050 JavaCallArguments jargs(1);
3051 jargs.push_int(status);
3052 JavaCalls::call_static(&result,
3053 vmClasses::System_klass(),
3054 vmSymbols::exit_method_name(),
3055 vmSymbols::int_void_signature(),
3056 &jargs,
3057 CHECK);
3058 C2V_END
3059
3060 C2V_VMENTRY_0(jlong, ticksNow, (JNIEnv* env, jobject))
3061 return CompilerEvent::ticksNow();
3062 C2V_END
3063
3064 C2V_VMENTRY_0(jint, registerCompilerPhase, (JNIEnv* env, jobject, jstring jphase_name))
3065 #if INCLUDE_JFR
3066 JVMCIObject phase_name = JVMCIENV->wrap(jphase_name);
3067 const char *name = JVMCIENV->as_utf8_string(phase_name);
3068 return CompilerEvent::PhaseEvent::get_phase_id(name, true, true, true);
3069 #else
3070 return -1;
3071 #endif // !INCLUDE_JFR
3072 C2V_END
3073
3074 C2V_VMENTRY(void, notifyCompilerPhaseEvent, (JNIEnv* env, jobject, jlong startTime, jint phase, jint compileId, jint level))
3075 EventCompilerPhase event(UNTIMED);
3076 if (event.should_commit()) {
3077 CompilerEvent::PhaseEvent::post(event, startTime, phase, compileId, level);
3078 }
3079 C2V_END
3080
3081 C2V_VMENTRY(void, notifyCompilerInliningEvent, (JNIEnv* env, jobject, jint compileId, ARGUMENT_PAIR(caller), ARGUMENT_PAIR(callee), jboolean succeeded, jstring jmessage, jint bci))
3082 EventCompilerInlining event;
3083 if (event.should_commit()) {
3084 Method* caller = UNPACK_PAIR(Method, caller);
3085 Method* callee = UNPACK_PAIR(Method, callee);
3086 JVMCIObject message = JVMCIENV->wrap(jmessage);
3087 CompilerEvent::InlineEvent::post(event, compileId, caller, callee, succeeded, JVMCIENV->as_utf8_string(message), bci);
3088 }
3089 C2V_END
3090
3091 C2V_VMENTRY(void, setThreadLocalObject, (JNIEnv* env, jobject, jint id, jobject value))
3092 requireInHotSpot("setThreadLocalObject", JVMCI_CHECK);
3093 if (id == 0) {
3094 thread->set_jvmci_reserved_oop0(JNIHandles::resolve(value));
3095 return;
3096 }
3097 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
3098 err_msg("%d is not a valid thread local id", id));
3099 C2V_END
3100
3101 C2V_VMENTRY_NULL(jobject, getThreadLocalObject, (JNIEnv* env, jobject, jint id))
3102 requireInHotSpot("getThreadLocalObject", JVMCI_CHECK_NULL);
3103 if (id == 0) {
3104 return JNIHandles::make_local(thread->get_jvmci_reserved_oop0());
3105 }
3106 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
3107 err_msg("%d is not a valid thread local id", id));
3108 C2V_END
3109
3110 C2V_VMENTRY(void, setThreadLocalLong, (JNIEnv* env, jobject, jint id, jlong value))
3111 requireInHotSpot("setThreadLocalLong", JVMCI_CHECK);
3112 if (id == 0) {
3113 thread->set_jvmci_reserved0(value);
3114 } else if (id == 1) {
3115 thread->set_jvmci_reserved1(value);
3116 } else {
3117 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
3118 err_msg("%d is not a valid thread local id", id));
3119 }
3120 C2V_END
3121
3122 C2V_VMENTRY_0(jlong, getThreadLocalLong, (JNIEnv* env, jobject, jint id))
3123 requireInHotSpot("getThreadLocalLong", JVMCI_CHECK_0);
3124 if (id == 0) {
3125 return thread->get_jvmci_reserved0();
3126 } else if (id == 1) {
3127 return thread->get_jvmci_reserved1();
3128 } else {
3129 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
3130 err_msg("%d is not a valid thread local id", id));
3131 }
3132 C2V_END
3133
3134 C2V_VMENTRY(void, getOopMapAt, (JNIEnv* env, jobject, ARGUMENT_PAIR(method),
3135 jint bci, jlongArray oop_map_handle))
3136 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
3137 if (bci < 0 || bci >= method->code_size()) {
3138 JVMCI_THROW_MSG(IllegalArgumentException,
3139 err_msg("bci %d is out of bounds [0 .. %d)", bci, method->code_size()));
3140 }
3141 InterpreterOopMap mask;
3142 OopMapCache::compute_one_oop_map(method, bci, &mask);
3143 if (!mask.has_valid_mask()) {
3144 JVMCI_THROW_MSG(IllegalArgumentException, err_msg("bci %d is not valid", bci));
3145 }
3146 if (mask.number_of_entries() == 0) {
3147 return;
3148 }
3149
3150 int nslots = method->max_locals() + method->max_stack();
3151 int nwords = ((nslots - 1) / 64) + 1;
3152 JVMCIPrimitiveArray oop_map = JVMCIENV->wrap(oop_map_handle);
3153 int oop_map_len = JVMCIENV->get_length(oop_map);
3154 if (nwords > oop_map_len) {
3155 JVMCI_THROW_MSG(IllegalArgumentException,
3156 err_msg("oop map too short: %d > %d", nwords, oop_map_len));
3157 }
3158
3159 jlong* oop_map_buf = NEW_RESOURCE_ARRAY_IN_THREAD_RETURN_NULL(THREAD, jlong, nwords);
3160 if (oop_map_buf == nullptr) {
3161 JVMCI_THROW_MSG(InternalError, err_msg("could not allocate %d longs", nwords));
3162 }
3163 for (int i = 0; i < nwords; i++) {
3164 oop_map_buf[i] = 0L;
3165 }
3166
3167 BitMapView oop_map_view = BitMapView((BitMap::bm_word_t*) oop_map_buf, nwords * BitsPerLong);
3168 for (int i = 0; i < nslots; i++) {
3169 if (mask.is_oop(i)) {
3170 oop_map_view.set_bit(i);
3171 }
3172 }
3173 JVMCIENV->copy_longs_from((jlong*)oop_map_buf, oop_map, 0, nwords);
3174 C2V_END
3175
3176 #define CC (char*) /*cast a literal from (const char*)*/
3177 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
3178
3179 #define STRING "Ljava/lang/String;"
3180 #define OBJECT "Ljava/lang/Object;"
3181 #define CLASS "Ljava/lang/Class;"
3182 #define OBJECTCONSTANT "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;"
3183 #define EXECUTABLE "Ljava/lang/reflect/Executable;"
3184 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;"
3185 #define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;"
3186 #define BYTECODE_FRAME "Ljdk/vm/ci/code/BytecodeFrame;"
3187 #define JAVACONSTANT "Ljdk/vm/ci/meta/JavaConstant;"
3188 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;"
3189 #define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
3190 #define FIELDINFO "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl$FieldInfo;"
3191 #define HS_RESOLVED_TYPE "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;"
3192 #define HS_INSTALLED_CODE "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;"
3193 #define HS_NMETHOD "Ljdk/vm/ci/hotspot/HotSpotNmethod;"
3194 #define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
3195 #define HS_CONFIG "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
3196 #define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
3197 #define HS_SPECULATION_LOG "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
3198 #define REFLECTION_EXECUTABLE "Ljava/lang/reflect/Executable;"
3199 #define REFLECTION_FIELD "Ljava/lang/reflect/Field;"
3200
3201 // Types wrapping VM pointers. The ...2 macro is for a pair: (wrapper, pointer)
3202 #define HS_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
3203 #define HS_METHOD2 "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;J"
3204 #define HS_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
3205 #define HS_KLASS2 "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;J"
3206 #define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
3207 #define HS_CONSTANT_POOL2 "Ljdk/vm/ci/hotspot/HotSpotConstantPool;J"
3208
3209 JNINativeMethod CompilerToVM::methods[] = {
3210 {CC "getBytecode", CC "(" HS_METHOD2 ")[B", FN_PTR(getBytecode)},
3211 {CC "getExceptionTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getExceptionTableStart)},
3212 {CC "getExceptionTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getExceptionTableLength)},
3213 {CC "findUniqueConcreteMethod", CC "(" HS_KLASS2 HS_METHOD2 ")" HS_METHOD, FN_PTR(findUniqueConcreteMethod)},
3214 {CC "getImplementor", CC "(" HS_KLASS2 ")" HS_KLASS, FN_PTR(getImplementor)},
3215 {CC "getStackTraceElement", CC "(" HS_METHOD2 "I)" STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)},
3216 {CC "methodIsIgnoredBySecurityStackWalk", CC "(" HS_METHOD2 ")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)},
3217 {CC "setNotInlinableOrCompilable", CC "(" HS_METHOD2 ")V", FN_PTR(setNotInlinableOrCompilable)},
3218 {CC "isCompilable", CC "(" HS_METHOD2 ")Z", FN_PTR(isCompilable)},
3219 {CC "hasNeverInlineDirective", CC "(" HS_METHOD2 ")Z", FN_PTR(hasNeverInlineDirective)},
3220 {CC "shouldInlineMethod", CC "(" HS_METHOD2 ")Z", FN_PTR(shouldInlineMethod)},
3221 {CC "lookupType", CC "(" STRING HS_KLASS2 "IZ)" HS_RESOLVED_TYPE, FN_PTR(lookupType)},
3222 {CC "lookupJClass", CC "(J)" HS_RESOLVED_TYPE, FN_PTR(lookupJClass)},
3223 {CC "getArrayType", CC "(C" HS_KLASS2 ")" HS_KLASS, FN_PTR(getArrayType)},
3224 {CC "lookupClass", CC "(" CLASS ")" HS_RESOLVED_TYPE, FN_PTR(lookupClass)},
3225 {CC "lookupNameInPool", CC "(" HS_CONSTANT_POOL2 "II)" STRING, FN_PTR(lookupNameInPool)},
3226 {CC "lookupNameAndTypeRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(lookupNameAndTypeRefIndexInPool)},
3227 {CC "lookupSignatureInPool", CC "(" HS_CONSTANT_POOL2 "II)" STRING, FN_PTR(lookupSignatureInPool)},
3228 {CC "lookupKlassRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(lookupKlassRefIndexInPool)},
3229 {CC "lookupKlassInPool", CC "(" HS_CONSTANT_POOL2 "I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)},
3230 {CC "lookupAppendixInPool", CC "(" HS_CONSTANT_POOL2 "II)" OBJECTCONSTANT, FN_PTR(lookupAppendixInPool)},
3231 {CC "lookupMethodInPool", CC "(" HS_CONSTANT_POOL2 "IB" HS_METHOD2 ")" HS_METHOD, FN_PTR(lookupMethodInPool)},
3232 {CC "lookupConstantInPool", CC "(" HS_CONSTANT_POOL2 "IZ)" JAVACONSTANT, FN_PTR(lookupConstantInPool)},
3233 {CC "resolveBootstrapMethod", CC "(" HS_CONSTANT_POOL2 "I)[" OBJECT, FN_PTR(resolveBootstrapMethod)},
3234 {CC "bootstrapArgumentIndexAt", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(bootstrapArgumentIndexAt)},
3235 {CC "getUncachedStringInPool", CC "(" HS_CONSTANT_POOL2 "I)" JAVACONSTANT, FN_PTR(getUncachedStringInPool)},
3236 {CC "resolveTypeInPool", CC "(" HS_CONSTANT_POOL2 "I)" HS_KLASS, FN_PTR(resolveTypeInPool)},
3237 {CC "resolveFieldInPool", CC "(" HS_CONSTANT_POOL2 "I" HS_METHOD2 "B[I)" HS_KLASS, FN_PTR(resolveFieldInPool)},
3238 {CC "decodeFieldIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(decodeFieldIndexToCPIndex)},
3239 {CC "decodeMethodIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(decodeMethodIndexToCPIndex)},
3240 {CC "decodeIndyIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "IZ)I", FN_PTR(decodeIndyIndexToCPIndex)},
3241 {CC "resolveInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "I)V", FN_PTR(resolveInvokeHandleInPool)},
3242 {CC "isResolvedInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(isResolvedInvokeHandleInPool)},
3243 {CC "resolveMethod", CC "(" HS_KLASS2 HS_METHOD2 HS_KLASS2 ")" HS_METHOD, FN_PTR(resolveMethod)},
3244 {CC "getSignaturePolymorphicHolders", CC "()[" STRING, FN_PTR(getSignaturePolymorphicHolders)},
3245 {CC "getVtableIndexForInterfaceMethod", CC "(" HS_KLASS2 HS_METHOD2 ")I", FN_PTR(getVtableIndexForInterfaceMethod)},
3246 {CC "getClassInitializer", CC "(" HS_KLASS2 ")" HS_METHOD, FN_PTR(getClassInitializer)},
3247 {CC "hasFinalizableSubclass", CC "(" HS_KLASS2 ")Z", FN_PTR(hasFinalizableSubclass)},
3248 {CC "getMaxCallTargetOffset", CC "(J)J", FN_PTR(getMaxCallTargetOffset)},
3249 {CC "asResolvedJavaMethod", CC "(" EXECUTABLE ")" HS_METHOD, FN_PTR(asResolvedJavaMethod)},
3250 {CC "getResolvedJavaMethod", CC "(" OBJECTCONSTANT "J)" HS_METHOD, FN_PTR(getResolvedJavaMethod)},
3251 {CC "getConstantPool", CC "(" OBJECT "JZ)" HS_CONSTANT_POOL, FN_PTR(getConstantPool)},
3252 {CC "getResolvedJavaType0", CC "(Ljava/lang/Object;JZ)" HS_KLASS, FN_PTR(getResolvedJavaType0)},
3253 {CC "readConfiguration", CC "()[" OBJECT, FN_PTR(readConfiguration)},
3254 {CC "installCode0", CC "(JJZ" HS_COMPILED_CODE "[" OBJECT INSTALLED_CODE "J[B)I", FN_PTR(installCode0)},
3255 {CC "getInstallCodeFlags", CC "()I", FN_PTR(getInstallCodeFlags)},
3256 {CC "resetCompilationStatistics", CC "()V", FN_PTR(resetCompilationStatistics)},
3257 {CC "disassembleCodeBlob", CC "(" INSTALLED_CODE ")" STRING, FN_PTR(disassembleCodeBlob)},
3258 {CC "executeHotSpotNmethod", CC "([" OBJECT HS_NMETHOD ")" OBJECT, FN_PTR(executeHotSpotNmethod)},
3259 {CC "getLineNumberTable", CC "(" HS_METHOD2 ")[J", FN_PTR(getLineNumberTable)},
3260 {CC "getLocalVariableTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getLocalVariableTableStart)},
3261 {CC "getLocalVariableTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getLocalVariableTableLength)},
3262 {CC "reprofile", CC "(" HS_METHOD2 ")V", FN_PTR(reprofile)},
3263 {CC "invalidateHotSpotNmethod", CC "(" HS_NMETHOD "Z)V", FN_PTR(invalidateHotSpotNmethod)},
3264 {CC "collectCounters", CC "()[J", FN_PTR(collectCounters)},
3265 {CC "getCountersSize", CC "()I", FN_PTR(getCountersSize)},
3266 {CC "setCountersSize", CC "(I)Z", FN_PTR(setCountersSize)},
3267 {CC "allocateCompileId", CC "(" HS_METHOD2 "I)I", FN_PTR(allocateCompileId)},
3268 {CC "isMature", CC "(J)Z", FN_PTR(isMature)},
3269 {CC "hasCompiledCodeForOSR", CC "(" HS_METHOD2 "II)Z", FN_PTR(hasCompiledCodeForOSR)},
3270 {CC "getSymbol", CC "(J)" STRING, FN_PTR(getSymbol)},
3271 {CC "getSignatureName", CC "(J)" STRING, FN_PTR(getSignatureName)},
3272 {CC "iterateFrames", CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT, FN_PTR(iterateFrames)},
3273 {CC "materializeVirtualObjects", CC "(" HS_STACK_FRAME_REF "Z)V", FN_PTR(materializeVirtualObjects)},
3274 {CC "shouldDebugNonSafepoints", CC "()Z", FN_PTR(shouldDebugNonSafepoints)},
3275 {CC "writeDebugOutput", CC "(JIZ)V", FN_PTR(writeDebugOutput)},
3276 {CC "flushDebugOutput", CC "()V", FN_PTR(flushDebugOutput)},
3277 {CC "methodDataProfileDataSize", CC "(JI)I", FN_PTR(methodDataProfileDataSize)},
3278 {CC "methodDataExceptionSeen", CC "(JI)I", FN_PTR(methodDataExceptionSeen)},
3279 {CC "interpreterFrameSize", CC "(" BYTECODE_FRAME ")I", FN_PTR(interpreterFrameSize)},
3280 {CC "compileToBytecode", CC "(" OBJECTCONSTANT ")V", FN_PTR(compileToBytecode)},
3281 {CC "getFlagValue", CC "(" STRING ")" OBJECT, FN_PTR(getFlagValue)},
3282 {CC "getInterfaces", CC "(" HS_KLASS2 ")[" HS_KLASS, FN_PTR(getInterfaces)},
3283 {CC "getComponentType", CC "(" HS_KLASS2 ")" HS_RESOLVED_TYPE, FN_PTR(getComponentType)},
3284 {CC "ensureInitialized", CC "(" HS_KLASS2 ")V", FN_PTR(ensureInitialized)},
3285 {CC "ensureLinked", CC "(" HS_KLASS2 ")V", FN_PTR(ensureLinked)},
3286 {CC "getIdentityHashCode", CC "(" OBJECTCONSTANT ")I", FN_PTR(getIdentityHashCode)},
3287 {CC "isInternedString", CC "(" OBJECTCONSTANT ")Z", FN_PTR(isInternedString)},
3288 {CC "unboxPrimitive", CC "(" OBJECTCONSTANT ")" OBJECT, FN_PTR(unboxPrimitive)},
3289 {CC "boxPrimitive", CC "(" OBJECT ")" OBJECTCONSTANT, FN_PTR(boxPrimitive)},
3290 {CC "getDeclaredConstructors", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredConstructors)},
3291 {CC "getDeclaredMethods", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredMethods)},
3292 {CC "getDeclaredFieldsInfo", CC "(" HS_KLASS2 ")[" FIELDINFO, FN_PTR(getDeclaredFieldsInfo)},
3293 {CC "readStaticFieldValue", CC "(" HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readStaticFieldValue)},
3294 {CC "readFieldValue", CC "(" OBJECTCONSTANT HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readFieldValue)},
3295 {CC "isInstance", CC "(" HS_KLASS2 OBJECTCONSTANT ")Z", FN_PTR(isInstance)},
3296 {CC "isAssignableFrom", CC "(" HS_KLASS2 HS_KLASS2 ")Z", FN_PTR(isAssignableFrom)},
3297 {CC "isTrustedForIntrinsics", CC "(" HS_KLASS2 ")Z", FN_PTR(isTrustedForIntrinsics)},
3298 {CC "asJavaType", CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE, FN_PTR(asJavaType)},
3299 {CC "asString", CC "(" OBJECTCONSTANT ")" STRING, FN_PTR(asString)},
3300 {CC "equals", CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z", FN_PTR(equals)},
3301 {CC "getJavaMirror", CC "(" HS_KLASS2 ")" OBJECTCONSTANT, FN_PTR(getJavaMirror)},
3302 {CC "getArrayLength", CC "(" OBJECTCONSTANT ")I", FN_PTR(getArrayLength)},
3303 {CC "readArrayElement", CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;", FN_PTR(readArrayElement)},
3304 {CC "arrayBaseOffset", CC "(C)I", FN_PTR(arrayBaseOffset)},
3305 {CC "arrayIndexScale", CC "(C)I", FN_PTR(arrayIndexScale)},
3306 {CC "clearOopHandle", CC "(J)V", FN_PTR(clearOopHandle)},
3307 {CC "releaseClearedOopHandles", CC "()V", FN_PTR(releaseClearedOopHandles)},
3308 {CC "registerNativeMethods", CC "(" CLASS ")[J", FN_PTR(registerNativeMethods)},
3309 {CC "isCurrentThreadAttached", CC "()Z", FN_PTR(isCurrentThreadAttached)},
3310 {CC "getCurrentJavaThread", CC "()J", FN_PTR(getCurrentJavaThread)},
3311 {CC "attachCurrentThread", CC "([BZ[J)Z", FN_PTR(attachCurrentThread)},
3312 {CC "detachCurrentThread", CC "(Z)Z", FN_PTR(detachCurrentThread)},
3313 {CC "translate", CC "(" OBJECT "Z)J", FN_PTR(translate)},
3314 {CC "unhand", CC "(J)" OBJECT, FN_PTR(unhand)},
3315 {CC "updateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(updateHotSpotNmethod)},
3316 {CC "getCode", CC "(" HS_INSTALLED_CODE ")[B", FN_PTR(getCode)},
3317 {CC "asReflectionExecutable", CC "(" HS_METHOD2 ")" REFLECTION_EXECUTABLE, FN_PTR(asReflectionExecutable)},
3318 {CC "asReflectionField", CC "(" HS_KLASS2 "I)" REFLECTION_FIELD, FN_PTR(asReflectionField)},
3319 {CC "getEncodedClassAnnotationData", CC "(" HS_KLASS2 OBJECT "IJ)[B", FN_PTR(getEncodedClassAnnotationData)},
3320 {CC "getEncodedExecutableAnnotationData", CC "(" HS_METHOD2 OBJECT "IJ)[B", FN_PTR(getEncodedExecutableAnnotationData)},
3321 {CC "getEncodedFieldAnnotationData", CC "(" HS_KLASS2 "I" OBJECT "IJ)[B", FN_PTR(getEncodedFieldAnnotationData)},
3322 {CC "getFailedSpeculations", CC "(J[[B)[[B", FN_PTR(getFailedSpeculations)},
3323 {CC "getFailedSpeculationsAddress", CC "(" HS_METHOD2 ")J", FN_PTR(getFailedSpeculationsAddress)},
3324 {CC "releaseFailedSpeculations", CC "(J)V", FN_PTR(releaseFailedSpeculations)},
3325 {CC "addFailedSpeculation", CC "(J[B)Z", FN_PTR(addFailedSpeculation)},
3326 {CC "callSystemExit", CC "(I)V", FN_PTR(callSystemExit)},
3327 {CC "ticksNow", CC "()J", FN_PTR(ticksNow)},
3328 {CC "getThreadLocalObject", CC "(I)" OBJECT, FN_PTR(getThreadLocalObject)},
3329 {CC "setThreadLocalObject", CC "(I" OBJECT ")V", FN_PTR(setThreadLocalObject)},
3330 {CC "getThreadLocalLong", CC "(I)J", FN_PTR(getThreadLocalLong)},
3331 {CC "setThreadLocalLong", CC "(IJ)V", FN_PTR(setThreadLocalLong)},
3332 {CC "registerCompilerPhase", CC "(" STRING ")I", FN_PTR(registerCompilerPhase)},
3333 {CC "notifyCompilerPhaseEvent", CC "(JIII)V", FN_PTR(notifyCompilerPhaseEvent)},
3334 {CC "notifyCompilerInliningEvent", CC "(I" HS_METHOD2 HS_METHOD2 "ZLjava/lang/String;I)V", FN_PTR(notifyCompilerInliningEvent)},
3335 {CC "getOopMapAt", CC "(" HS_METHOD2 "I[J)V", FN_PTR(getOopMapAt)},
3336 };
3337
3338 int CompilerToVM::methods_count() {
3339 return sizeof(methods) / sizeof(JNINativeMethod);
3340 }