1 /*
2 * Copyright (c) 2011, 2023, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #include "precompiled.hpp"
25 #include "classfile/classLoaderData.inline.hpp"
26 #include "classfile/javaClasses.inline.hpp"
27 #include "classfile/stringTable.hpp"
28 #include "classfile/symbolTable.hpp"
29 #include "classfile/systemDictionary.hpp"
30 #include "classfile/vmClasses.hpp"
31 #include "code/scopeDesc.hpp"
32 #include "compiler/compileBroker.hpp"
33 #include "compiler/compilerEvent.hpp"
34 #include "compiler/disassembler.hpp"
35 #include "compiler/oopMap.hpp"
36 #include "interpreter/bytecodeStream.hpp"
37 #include "interpreter/linkResolver.hpp"
38 #include "jfr/jfrEvents.hpp"
39 #include "jvmci/jvmciCodeInstaller.hpp"
40 #include "jvmci/jvmciCompilerToVM.hpp"
41 #include "jvmci/jvmciRuntime.hpp"
42 #include "logging/log.hpp"
43 #include "logging/logTag.hpp"
44 #include "memory/oopFactory.hpp"
45 #include "memory/universe.hpp"
46 #include "oops/constantPool.inline.hpp"
47 #include "oops/instanceKlass.inline.hpp"
48 #include "oops/instanceMirrorKlass.hpp"
49 #include "oops/method.inline.hpp"
50 #include "oops/objArrayKlass.inline.hpp"
51 #include "oops/typeArrayOop.inline.hpp"
52 #include "prims/jvmtiExport.hpp"
53 #include "prims/methodHandles.hpp"
54 #include "prims/nativeLookup.hpp"
55 #include "runtime/atomic.hpp"
56 #include "runtime/deoptimization.hpp"
57 #include "runtime/fieldDescriptor.inline.hpp"
58 #include "runtime/frame.inline.hpp"
59 #include "runtime/globals_extension.hpp"
60 #include "runtime/interfaceSupport.inline.hpp"
61 #include "runtime/jniHandles.inline.hpp"
62 #include "runtime/reflectionUtils.hpp"
63 #include "runtime/stackFrameStream.inline.hpp"
64 #include "runtime/timerTrace.hpp"
65 #include "runtime/vframe.inline.hpp"
66 #include "runtime/vframe_hp.hpp"
67 #if INCLUDE_JFR
68 #include "jfr/jfr.hpp"
69 #endif
70
71 JVMCIKlassHandle::JVMCIKlassHandle(Thread* thread, Klass* klass) {
72 _thread = thread;
73 _klass = klass;
74 if (klass != nullptr) {
75 _holder = Handle(_thread, klass->klass_holder());
76 }
77 }
78
79 JVMCIKlassHandle& JVMCIKlassHandle::operator=(Klass* klass) {
80 _klass = klass;
81 if (klass != nullptr) {
82 _holder = Handle(_thread, klass->klass_holder());
83 }
84 return *this;
85 }
86
87 static void requireInHotSpot(const char* caller, JVMCI_TRAPS) {
88 if (!JVMCIENV->is_hotspot()) {
89 JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot call %s from JVMCI shared library", caller));
90 }
91 }
92
93 class JVMCITraceMark : public StackObj {
94 const char* _msg;
95 public:
96 JVMCITraceMark(const char* msg) {
97 _msg = msg;
98 JVMCI_event_2("Enter %s", _msg);
99 }
100 ~JVMCITraceMark() {
101 JVMCI_event_2(" Exit %s", _msg);
102 }
103 };
104
105 class JavaArgumentUnboxer : public SignatureIterator {
106 protected:
107 JavaCallArguments* _jca;
108 arrayOop _args;
109 int _index;
110
111 Handle next_arg(BasicType expectedType);
112
113 public:
114 JavaArgumentUnboxer(Symbol* signature,
115 JavaCallArguments* jca,
116 arrayOop args,
117 bool is_static)
118 : SignatureIterator(signature)
119 {
120 this->_return_type = T_ILLEGAL;
121 _jca = jca;
122 _index = 0;
123 _args = args;
124 if (!is_static) {
125 _jca->push_oop(next_arg(T_OBJECT));
126 }
127 do_parameters_on(this);
128 assert(_index == args->length(), "arg count mismatch with signature");
129 }
130
131 private:
132 friend class SignatureIterator; // so do_parameters_on can call do_type
133 void do_type(BasicType type) {
134 if (is_reference_type(type)) {
135 _jca->push_oop(next_arg(T_OBJECT));
136 return;
137 }
138 Handle arg = next_arg(type);
139 int box_offset = java_lang_boxing_object::value_offset(type);
140 switch (type) {
141 case T_BOOLEAN: _jca->push_int(arg->bool_field(box_offset)); break;
142 case T_CHAR: _jca->push_int(arg->char_field(box_offset)); break;
143 case T_SHORT: _jca->push_int(arg->short_field(box_offset)); break;
144 case T_BYTE: _jca->push_int(arg->byte_field(box_offset)); break;
145 case T_INT: _jca->push_int(arg->int_field(box_offset)); break;
146 case T_LONG: _jca->push_long(arg->long_field(box_offset)); break;
147 case T_FLOAT: _jca->push_float(arg->float_field(box_offset)); break;
148 case T_DOUBLE: _jca->push_double(arg->double_field(box_offset)); break;
149 default: ShouldNotReachHere();
150 }
151 }
152 };
153
154 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) {
155 assert(_index < _args->length(), "out of bounds");
156 oop arg=((objArrayOop) (_args))->obj_at(_index++);
157 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
158 return Handle(Thread::current(), arg);
159 }
160
161 // Bring the JVMCI compiler thread into the VM state.
162 #define JVMCI_VM_ENTRY_MARK \
163 MACOS_AARCH64_ONLY(ThreadWXEnable __wx(WXWrite, thread)); \
164 ThreadInVMfromNative __tiv(thread); \
165 HandleMarkCleaner __hm(thread); \
166 JavaThread* THREAD = thread; \
167 debug_only(VMNativeEntryWrapper __vew;)
168
169 // Native method block that transitions current thread to '_thread_in_vm'.
170 #define C2V_BLOCK(result_type, name, signature) \
171 JVMCI_VM_ENTRY_MARK; \
172 ResourceMark rm; \
173 JNI_JVMCIENV(JVMCI::compilation_tick(thread), env);
174
175 static JavaThread* get_current_thread(bool allow_null=true) {
176 Thread* thread = Thread::current_or_null_safe();
177 if (thread == nullptr) {
178 assert(allow_null, "npe");
179 return nullptr;
180 }
181 return JavaThread::cast(thread);
182 }
183
184 // Entry to native method implementation that transitions
185 // current thread to '_thread_in_vm'.
186 #define C2V_VMENTRY(result_type, name, signature) \
187 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
188 JavaThread* thread = get_current_thread(); \
189 if (thread == nullptr) { \
190 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
191 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
192 return; \
193 } \
194 C2V_BLOCK(result_type, name, signature) \
195 JVMCITraceMark jtm("CompilerToVM::" #name);
196
197 #define C2V_VMENTRY_(result_type, name, signature, result) \
198 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
199 JavaThread* thread = get_current_thread(); \
200 if (thread == nullptr) { \
201 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
202 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
203 return result; \
204 } \
205 C2V_BLOCK(result_type, name, signature) \
206 JVMCITraceMark jtm("CompilerToVM::" #name);
207
208 #define C2V_VMENTRY_NULL(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, nullptr)
209 #define C2V_VMENTRY_0(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, 0)
210
211 // Entry to native method implementation that does not transition
212 // current thread to '_thread_in_vm'.
213 #define C2V_VMENTRY_PREFIX(result_type, name, signature) \
214 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
215 JavaThread* thread = get_current_thread();
216
217 #define C2V_END }
218
219 #define JNI_THROW(caller, name, msg) do { \
220 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
221 if (__throw_res != JNI_OK) { \
222 tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \
223 } \
224 return; \
225 } while (0);
226
227 #define JNI_THROW_(caller, name, msg, result) do { \
228 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
229 if (__throw_res != JNI_OK) { \
230 tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \
231 } \
232 return result; \
233 } while (0)
234
235 jobjectArray readConfiguration0(JNIEnv *env, JVMCI_TRAPS);
236
237 C2V_VMENTRY_NULL(jobjectArray, readConfiguration, (JNIEnv* env))
238 jobjectArray config = readConfiguration0(env, JVMCI_CHECK_NULL);
239 return config;
240 }
241
242 C2V_VMENTRY_NULL(jobject, getFlagValue, (JNIEnv* env, jobject c2vm, jobject name_handle))
243 #define RETURN_BOXED_LONG(value) jvalue p; p.j = (jlong) (value); JVMCIObject box = JVMCIENV->create_box(T_LONG, &p, JVMCI_CHECK_NULL); return box.as_jobject();
244 #define RETURN_BOXED_DOUBLE(value) jvalue p; p.d = (jdouble) (value); JVMCIObject box = JVMCIENV->create_box(T_DOUBLE, &p, JVMCI_CHECK_NULL); return box.as_jobject();
245 JVMCIObject name = JVMCIENV->wrap(name_handle);
246 if (name.is_null()) {
247 JVMCI_THROW_NULL(NullPointerException);
248 }
249 const char* cstring = JVMCIENV->as_utf8_string(name);
250 const JVMFlag* flag = JVMFlag::find_declared_flag(cstring);
251 if (flag == nullptr) {
252 return c2vm;
253 }
254 if (flag->is_bool()) {
255 jvalue prim;
256 prim.z = flag->get_bool();
257 JVMCIObject box = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL);
258 return JVMCIENV->get_jobject(box);
259 } else if (flag->is_ccstr()) {
260 JVMCIObject value = JVMCIENV->create_string(flag->get_ccstr(), JVMCI_CHECK_NULL);
261 return JVMCIENV->get_jobject(value);
262 } else if (flag->is_intx()) {
263 RETURN_BOXED_LONG(flag->get_intx());
264 } else if (flag->is_int()) {
265 RETURN_BOXED_LONG(flag->get_int());
266 } else if (flag->is_uint()) {
267 RETURN_BOXED_LONG(flag->get_uint());
268 } else if (flag->is_uint64_t()) {
269 RETURN_BOXED_LONG(flag->get_uint64_t());
270 } else if (flag->is_size_t()) {
271 RETURN_BOXED_LONG(flag->get_size_t());
272 } else if (flag->is_uintx()) {
273 RETURN_BOXED_LONG(flag->get_uintx());
274 } else if (flag->is_double()) {
275 RETURN_BOXED_DOUBLE(flag->get_double());
276 } else {
277 JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->name(), flag->type_string());
278 }
279 #undef RETURN_BOXED_LONG
280 #undef RETURN_BOXED_DOUBLE
281 C2V_END
282
283 // Macros for argument pairs representing a wrapper object and its wrapped VM pointer
284 #define ARGUMENT_PAIR(name) jobject name ## _obj, jlong name ## _pointer
285 #define UNPACK_PAIR(type, name) ((type*) name ## _pointer)
286
287 C2V_VMENTRY_NULL(jbyteArray, getBytecode, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
288 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
289
290 int code_size = method->code_size();
291 jbyte* reconstituted_code = NEW_RESOURCE_ARRAY(jbyte, code_size);
292
293 guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
294 // iterate over all bytecodes and replace non-Java bytecodes
295
296 for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
297 Bytecodes::Code code = s.code();
298 Bytecodes::Code raw_code = s.raw_code();
299 int bci = s.bci();
300 int len = s.instruction_size();
301
302 // Restore original byte code.
303 reconstituted_code[bci] = (jbyte) (s.is_wide()? Bytecodes::_wide : code);
304 if (len > 1) {
305 memcpy(reconstituted_code + (bci + 1), s.bcp()+1, len-1);
306 }
307
308 if (len > 1) {
309 // Restore the big-endian constant pool indexes.
310 // Cf. Rewriter::scan_method
311 switch (code) {
312 case Bytecodes::_getstatic:
313 case Bytecodes::_putstatic:
314 case Bytecodes::_getfield:
315 case Bytecodes::_putfield:
316 case Bytecodes::_invokevirtual:
317 case Bytecodes::_invokespecial:
318 case Bytecodes::_invokestatic:
319 case Bytecodes::_invokeinterface:
320 case Bytecodes::_invokehandle: {
321 int cp_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
322 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
323 break;
324 }
325
326 case Bytecodes::_invokedynamic: {
327 int cp_index = Bytes::get_native_u4((address) reconstituted_code + (bci + 1));
328 Bytes::put_Java_u4((address) reconstituted_code + (bci + 1), (u4) cp_index);
329 break;
330 }
331
332 default:
333 break;
334 }
335
336 // Not all ldc byte code are rewritten.
337 switch (raw_code) {
338 case Bytecodes::_fast_aldc: {
339 int cpc_index = reconstituted_code[bci + 1] & 0xff;
340 int cp_index = method->constants()->object_to_cp_index(cpc_index);
341 assert(cp_index < method->constants()->length(), "sanity check");
342 reconstituted_code[bci + 1] = (jbyte) cp_index;
343 break;
344 }
345
346 case Bytecodes::_fast_aldc_w: {
347 int cpc_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
348 int cp_index = method->constants()->object_to_cp_index(cpc_index);
349 assert(cp_index < method->constants()->length(), "sanity check");
350 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
351 break;
352 }
353
354 default:
355 break;
356 }
357 }
358 }
359
360 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
361 JVMCIENV->copy_bytes_from(reconstituted_code, result, 0, code_size);
362 return JVMCIENV->get_jbyteArray(result);
363 C2V_END
364
365 C2V_VMENTRY_0(jint, getExceptionTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
366 Method* method = UNPACK_PAIR(Method, method);
367 return method->exception_table_length();
368 C2V_END
369
370 C2V_VMENTRY_0(jlong, getExceptionTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
371 Method* method = UNPACK_PAIR(Method, method);
372 if (method->exception_table_length() == 0) {
373 return 0L;
374 }
375 return (jlong) (address) method->exception_table_start();
376 C2V_END
377
378 C2V_VMENTRY_NULL(jobject, asResolvedJavaMethod, (JNIEnv* env, jobject, jobject executable_handle))
379 requireInHotSpot("asResolvedJavaMethod", JVMCI_CHECK_NULL);
380 oop executable = JNIHandles::resolve(executable_handle);
381 oop mirror = nullptr;
382 int slot = 0;
383
384 if (executable->klass() == vmClasses::reflect_Constructor_klass()) {
385 mirror = java_lang_reflect_Constructor::clazz(executable);
386 slot = java_lang_reflect_Constructor::slot(executable);
387 } else {
388 assert(executable->klass() == vmClasses::reflect_Method_klass(), "wrong type");
389 mirror = java_lang_reflect_Method::clazz(executable);
390 slot = java_lang_reflect_Method::slot(executable);
391 }
392 Klass* holder = java_lang_Class::as_Klass(mirror);
393 methodHandle method (THREAD, InstanceKlass::cast(holder)->method_with_idnum(slot));
394 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
395 return JVMCIENV->get_jobject(result);
396 }
397
398 C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset))
399 Method* method = nullptr;
400 JVMCIObject base_object = JVMCIENV->wrap(base);
401 if (base_object.is_null()) {
402 method = *((Method**)(offset));
403 } else {
404 Handle obj = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
405 if (obj->is_a(vmClasses::ResolvedMethodName_klass())) {
406 method = (Method*) (intptr_t) obj->long_field(offset);
407 } else {
408 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", obj->klass()->external_name()));
409 }
410 }
411 if (method == nullptr) {
412 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
413 }
414 assert (method->is_method(), "invalid read");
415 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, method), JVMCI_CHECK_NULL);
416 return JVMCIENV->get_jobject(result);
417 }
418
419 C2V_VMENTRY_NULL(jobject, getConstantPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass_or_method), jboolean is_klass))
420 ConstantPool* cp = nullptr;
421 if (UNPACK_PAIR(address, klass_or_method) == 0) {
422 JVMCI_THROW_NULL(NullPointerException);
423 }
424 if (!is_klass) {
425 cp = (UNPACK_PAIR(Method, klass_or_method))->constMethod()->constants();
426 } else {
427 cp = InstanceKlass::cast(UNPACK_PAIR(Klass, klass_or_method))->constants();
428 }
429
430 JVMCIObject result = JVMCIENV->get_jvmci_constant_pool(constantPoolHandle(THREAD, cp), JVMCI_CHECK_NULL);
431 return JVMCIENV->get_jobject(result);
432 }
433
434 C2V_VMENTRY_NULL(jobject, getResolvedJavaType0, (JNIEnv* env, jobject, jobject base, jlong offset, jboolean compressed))
435 JVMCIObject base_object = JVMCIENV->wrap(base);
436 if (base_object.is_null()) {
437 JVMCI_THROW_MSG_NULL(NullPointerException, "base object is null");
438 }
439
440 const char* base_desc = nullptr;
441 JVMCIKlassHandle klass(THREAD);
442 if (offset == oopDesc::klass_offset_in_bytes()) {
443 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
444 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
445 klass = base_oop->klass();
446 } else {
447 goto unexpected;
448 }
449 } else if (!compressed) {
450 if (JVMCIENV->isa_HotSpotConstantPool(base_object)) {
451 ConstantPool* cp = JVMCIENV->asConstantPool(base_object);
452 if (offset == in_bytes(ConstantPool::pool_holder_offset())) {
453 klass = cp->pool_holder();
454 } else {
455 base_desc = FormatBufferResource("[constant pool for %s]", cp->pool_holder()->signature_name());
456 goto unexpected;
457 }
458 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
459 Klass* base_klass = JVMCIENV->asKlass(base_object);
460 if (offset == in_bytes(Klass::subklass_offset())) {
461 klass = base_klass->subklass();
462 } else if (offset == in_bytes(Klass::super_offset())) {
463 klass = base_klass->super();
464 } else if (offset == in_bytes(Klass::next_sibling_offset())) {
465 klass = base_klass->next_sibling();
466 } else if (offset == in_bytes(ObjArrayKlass::element_klass_offset()) && base_klass->is_objArray_klass()) {
467 klass = ObjArrayKlass::cast(base_klass)->element_klass();
468 } else if (offset >= in_bytes(Klass::primary_supers_offset()) &&
469 offset < in_bytes(Klass::primary_supers_offset()) + (int) (sizeof(Klass*) * Klass::primary_super_limit()) &&
470 offset % sizeof(Klass*) == 0) {
471 // Offset is within the primary supers array
472 int index = (int) ((offset - in_bytes(Klass::primary_supers_offset())) / sizeof(Klass*));
473 klass = base_klass->primary_super_of_depth(index);
474 } else {
475 base_desc = FormatBufferResource("[%s]", base_klass->signature_name());
476 goto unexpected;
477 }
478 } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
479 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
480 if (base_oop->is_a(vmClasses::Class_klass())) {
481 if (offset == java_lang_Class::klass_offset()) {
482 klass = java_lang_Class::as_Klass(base_oop());
483 } else if (offset == java_lang_Class::array_klass_offset()) {
484 klass = java_lang_Class::array_klass_acquire(base_oop());
485 } else {
486 base_desc = FormatBufferResource("[Class=%s]", java_lang_Class::as_Klass(base_oop())->signature_name());
487 goto unexpected;
488 }
489 } else {
490 if (!base_oop.is_null()) {
491 base_desc = FormatBufferResource("[%s]", base_oop()->klass()->signature_name());
492 }
493 goto unexpected;
494 }
495 } else if (JVMCIENV->isa_HotSpotMethodData(base_object)) {
496 jlong base_address = (intptr_t) JVMCIENV->asMethodData(base_object);
497 klass = *((Klass**) (intptr_t) (base_address + offset));
498 if (klass == nullptr || !klass->is_loader_alive()) {
499 // Klasses in methodData might be concurrently unloading so return null in that case.
500 return nullptr;
501 }
502 } else {
503 goto unexpected;
504 }
505 } else {
506 goto unexpected;
507 }
508
509 {
510 if (klass == nullptr) {
511 return nullptr;
512 }
513 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
514 return JVMCIENV->get_jobject(result);
515 }
516
517 unexpected:
518 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
519 err_msg("Unexpected arguments: %s%s " JLONG_FORMAT " %s",
520 JVMCIENV->klass_name(base_object), base_desc == nullptr ? "" : base_desc,
521 offset, compressed ? "true" : "false"));
522 }
523
524 C2V_VMENTRY_NULL(jobject, findUniqueConcreteMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method)))
525 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
526 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass));
527 if (holder->is_interface()) {
528 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Interface %s should be handled in Java code", holder->external_name()));
529 }
530 if (method->can_be_statically_bound()) {
531 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Effectively static method %s.%s should be handled in Java code", method->method_holder()->external_name(), method->external_name()));
532 }
533
534 methodHandle ucm;
535 {
536 MutexLocker locker(Compile_lock);
537 ucm = methodHandle(THREAD, Dependencies::find_unique_concrete_method(holder, method()));
538 }
539 JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL);
540 return JVMCIENV->get_jobject(result);
541 C2V_END
542
543 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
544 Klass* klass = UNPACK_PAIR(Klass, klass);
545 if (!klass->is_interface()) {
546 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
547 err_msg("Expected interface type, got %s", klass->external_name()));
548 }
549 InstanceKlass* iklass = InstanceKlass::cast(klass);
550 JVMCIKlassHandle handle(THREAD, iklass->implementor());
551 JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
552 return JVMCIENV->get_jobject(implementor);
553 C2V_END
554
555 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
556 Method* method = UNPACK_PAIR(Method, method);
557 return method->is_ignored_by_security_stack_walk();
558 C2V_END
559
560 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
561 Method* method = UNPACK_PAIR(Method, method);
562 // Skip redefined methods
563 if (method->is_old()) {
564 return false;
565 }
566 return !method->is_not_compilable(CompLevel_full_optimization);
567 C2V_END
568
569 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
570 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
571 return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
572 C2V_END
573
574 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
575 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
576 return CompilerOracle::should_inline(method) || method->force_inline();
577 C2V_END
578
579 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, ARGUMENT_PAIR(accessing_klass), jboolean resolve))
580 JVMCIObject name = JVMCIENV->wrap(jname);
581 const char* str = JVMCIENV->as_utf8_string(name);
582 TempNewSymbol class_name = SymbolTable::new_symbol(str);
583
584 if (class_name->utf8_length() <= 1) {
585 JVMCI_THROW_MSG_0(InternalError, err_msg("Primitive type %s should be handled in Java code", str));
586 }
587
588 JVMCIKlassHandle resolved_klass(THREAD);
589 Klass* accessing_klass = UNPACK_PAIR(Klass, accessing_klass);
590 Handle class_loader;
591 Handle protection_domain;
592 if (accessing_klass != nullptr) {
593 class_loader = Handle(THREAD, accessing_klass->class_loader());
594 protection_domain = Handle(THREAD, accessing_klass->protection_domain());
595 } else {
596 // Use the System class loader
597 class_loader = Handle(THREAD, SystemDictionary::java_system_loader());
598 JVMCIENV->runtime()->initialize(JVMCI_CHECK_NULL);
599 }
600
601 if (resolve) {
602 resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_NULL);
603 if (resolved_klass == nullptr) {
604 JVMCI_THROW_MSG_NULL(ClassNotFoundException, str);
605 }
606 } else {
607 if (Signature::has_envelope(class_name)) {
608 // This is a name from a signature. Strip off the trimmings.
609 // Call recursive to keep scope of strippedsym.
610 TempNewSymbol strippedsym = Signature::strip_envelope(class_name);
611 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym,
612 class_loader,
613 protection_domain);
614 } else if (Signature::is_array(class_name)) {
615 SignatureStream ss(class_name, false);
616 int ndim = ss.skip_array_prefix();
617 if (ss.type() == T_OBJECT) {
618 Symbol* strippedsym = ss.as_symbol();
619 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym,
620 class_loader,
621 protection_domain);
622 if (!resolved_klass.is_null()) {
623 resolved_klass = resolved_klass->array_klass(ndim, CHECK_NULL);
624 }
625 } else {
626 resolved_klass = TypeArrayKlass::cast(Universe::typeArrayKlassObj(ss.type()))->array_klass(ndim, CHECK_NULL);
627 }
628 } else {
629 resolved_klass = SystemDictionary::find_instance_klass(THREAD, class_name,
630 class_loader,
631 protection_domain);
632 }
633 }
634 JVMCIObject result = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
635 return JVMCIENV->get_jobject(result);
636 C2V_END
637
638 C2V_VMENTRY_NULL(jobject, getArrayType, (JNIEnv* env, jobject, jchar type_char, ARGUMENT_PAIR(klass)))
639 JVMCIKlassHandle array_klass(THREAD);
640 Klass* klass = UNPACK_PAIR(Klass, klass);
641 if (klass == nullptr) {
642 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
643 if (type == T_VOID) {
644 return nullptr;
645 }
646 array_klass = Universe::typeArrayKlassObj(type);
647 if (array_klass == nullptr) {
648 JVMCI_THROW_MSG_NULL(InternalError, err_msg("No array klass for primitive type %s", type2name(type)));
649 }
650 } else {
651 array_klass = klass->array_klass(CHECK_NULL);
652 }
653 JVMCIObject result = JVMCIENV->get_jvmci_type(array_klass, JVMCI_CHECK_NULL);
654 return JVMCIENV->get_jobject(result);
655 C2V_END
656
657 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror))
658 requireInHotSpot("lookupClass", JVMCI_CHECK_NULL);
659 if (mirror == nullptr) {
660 return nullptr;
661 }
662 JVMCIKlassHandle klass(THREAD);
663 klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
664 if (klass == nullptr) {
665 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported");
666 }
667 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
668 return JVMCIENV->get_jobject(result);
669 C2V_END
670
671 C2V_VMENTRY_NULL(jobject, lookupJClass, (JNIEnv* env, jobject, jlong jclass_value))
672 if (jclass_value == 0L) {
673 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass must not be zero");
674 }
675 jclass mirror = reinterpret_cast<jclass>(jclass_value);
676 // Since the jclass_value is passed as a jlong, we perform additional checks to prevent the caller from accidentally
677 // sending a value that is not a JNI handle.
678 if (JNIHandles::handle_type(thread, mirror) == JNIInvalidRefType) {
679 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass is not a valid JNI reference");
680 }
681 oop obj = JNIHandles::resolve(mirror);
682 if (!java_lang_Class::is_instance(obj)) {
683 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass must be a reference to the Class object");
684 }
685 JVMCIKlassHandle klass(THREAD, java_lang_Class::as_Klass(obj));
686 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
687 return JVMCIENV->get_jobject(result);
688 C2V_END
689
690 C2V_VMENTRY_NULL(jobject, getUncachedStringInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
691 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
692 constantTag tag = cp->tag_at(index);
693 if (!tag.is_string()) {
694 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
695 }
696 oop obj = cp->uncached_string_at(index, CHECK_NULL);
697 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
698 C2V_END
699
700 C2V_VMENTRY_NULL(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
701 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
702 oop obj = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL);
703 constantTag tag = cp->tag_at(index);
704 if (tag.is_dynamic_constant()) {
705 if (obj == nullptr) {
706 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
707 }
708 BasicType bt = Signature::basic_type(cp->uncached_signature_ref_at(index));
709 if (!is_reference_type(bt)) {
710 if (!is_java_primitive(bt)) {
711 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
712 }
713
714 // Convert standard box (e.g. java.lang.Integer) to JVMCI box (e.g. jdk.vm.ci.meta.PrimitiveConstant)
715 jvalue value;
716 jlong raw_value;
717 jchar type_char;
718 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
719 assert(bt2 == bt, "");
720 switch (bt2) {
721 case T_LONG: type_char = 'J'; raw_value = value.j; break;
722 case T_DOUBLE: type_char = 'D'; raw_value = value.j; break;
723 case T_FLOAT: type_char = 'F'; raw_value = value.i; break;
724 case T_INT: type_char = 'I'; raw_value = value.i; break;
725 case T_SHORT: type_char = 'S'; raw_value = value.s; break;
726 case T_BYTE: type_char = 'B'; raw_value = value.b; break;
727 case T_CHAR: type_char = 'C'; raw_value = value.c; break;
728 case T_BOOLEAN: type_char = 'Z'; raw_value = value.z; break;
729 default: return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
730 }
731
732 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, raw_value, JVMCI_CHECK_NULL);
733 return JVMCIENV->get_jobject(result);
734 }
735 }
736 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
737 C2V_END
738
739 C2V_VMENTRY_NULL(jobjectArray, resolveBootstrapMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
740 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
741 constantTag tag = cp->tag_at(index);
742 bool is_indy = tag.is_invoke_dynamic();
743 bool is_condy = tag.is_dynamic_constant();
744 if (!(is_condy || is_indy)) {
745 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
746 }
747 // Get the indy entry based on CP index
748 int indy_index = -1;
749 for (int i = 0; i < cp->resolved_indy_entries_length(); i++) {
750 if (cp->resolved_indy_entry_at(i)->constant_pool_index() == index) {
751 indy_index = i;
752 }
753 }
754 // Resolve the bootstrap specifier, its name, type, and static arguments
755 BootstrapInfo bootstrap_specifier(cp, index, indy_index);
756 Handle bsm = bootstrap_specifier.resolve_bsm(CHECK_NULL);
757
758 // call java.lang.invoke.MethodHandle::asFixedArity() -> MethodHandle
759 // to get a DirectMethodHandle from which we can then extract a Method*
760 JavaValue result(T_OBJECT);
761 JavaCalls::call_virtual(&result,
762 bsm,
763 vmClasses::MethodHandle_klass(),
764 vmSymbols::asFixedArity_name(),
765 vmSymbols::asFixedArity_signature(),
766 CHECK_NULL);
767 bsm = Handle(THREAD, result.get_oop());
768
769 // Check assumption about getting a DirectMethodHandle
770 if (!java_lang_invoke_DirectMethodHandle::is_instance(bsm())) {
771 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Unexpected MethodHandle subclass: %s", bsm->klass()->external_name()));
772 }
773 // Create return array describing the bootstrap method invocation (BSMI)
774 JVMCIObjectArray bsmi = JVMCIENV->new_Object_array(4, JVMCI_CHECK_NULL);
775
776 // Extract Method* and wrap it in a ResolvedJavaMethod
777 Handle member = Handle(THREAD, java_lang_invoke_DirectMethodHandle::member(bsm()));
778 JVMCIObject bsmi_method = JVMCIENV->get_jvmci_method(methodHandle(THREAD, java_lang_invoke_MemberName::vmtarget(member())), JVMCI_CHECK_NULL);
779 JVMCIENV->put_object_at(bsmi, 0, bsmi_method);
780
781 JVMCIObject bsmi_name = JVMCIENV->create_string(bootstrap_specifier.name(), JVMCI_CHECK_NULL);
782 JVMCIENV->put_object_at(bsmi, 1, bsmi_name);
783
784 Handle type_arg = bootstrap_specifier.type_arg();
785 JVMCIObject bsmi_type = JVMCIENV->get_object_constant(type_arg());
786 JVMCIENV->put_object_at(bsmi, 2, bsmi_type);
787
788 Handle arg_values = bootstrap_specifier.arg_values();
789 if (arg_values.not_null()) {
790 if (!arg_values->is_array()) {
791 JVMCIENV->put_object_at(bsmi, 3, JVMCIENV->get_object_constant(arg_values()));
792 } else if (arg_values->is_objArray()) {
793 objArrayHandle args_array = objArrayHandle(THREAD, (objArrayOop) arg_values());
794 int len = args_array->length();
795 JVMCIObjectArray arguments = JVMCIENV->new_JavaConstant_array(len, JVMCI_CHECK_NULL);
796 JVMCIENV->put_object_at(bsmi, 3, arguments);
797 for (int i = 0; i < len; i++) {
798 oop x = args_array->obj_at(i);
799 if (x != nullptr) {
800 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_object_constant(x));
801 } else {
802 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_JavaConstant_NULL_POINTER());
803 }
804 }
805 } else if (arg_values->is_typeArray()) {
806 typeArrayHandle bsci = typeArrayHandle(THREAD, (typeArrayOop) arg_values());
807 JVMCIPrimitiveArray arguments = JVMCIENV->new_intArray(bsci->length(), JVMCI_CHECK_NULL);
808 JVMCIENV->put_object_at(bsmi, 3, arguments);
809 for (int i = 0; i < bsci->length(); i++) {
810 JVMCIENV->put_int_at(arguments, i, bsci->int_at(i));
811 }
812 }
813 }
814 return JVMCIENV->get_jobjectArray(bsmi);
815 C2V_END
816
817 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode))
818 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
819 return cp->name_and_type_ref_index_at(index, (Bytecodes::Code)opcode);
820 C2V_END
821
822 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode))
823 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
824 JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which, (Bytecodes::Code)opcode), JVMCI_CHECK_NULL);
825 return JVMCIENV->get_jobject(sym);
826 C2V_END
827
828 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode))
829 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
830 JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which, (Bytecodes::Code)opcode), JVMCI_CHECK_NULL);
831 return JVMCIENV->get_jobject(sym);
832 C2V_END
833
834 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode))
835 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
836 return cp->klass_ref_index_at(index, (Bytecodes::Code)opcode);
837 C2V_END
838
839 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
840 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
841 Klass* klass = cp->klass_at(index, CHECK_NULL);
842 JVMCIKlassHandle resolved_klass(THREAD, klass);
843 if (resolved_klass->is_instance_klass()) {
844 InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL);
845 if (!InstanceKlass::cast(resolved_klass())->is_linked()) {
846 // link_class() should not return here if there is an issue.
847 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name()));
848 }
849 }
850 JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
851 return JVMCIENV->get_jobject(klassObject);
852 C2V_END
853
854 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
855 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
856 Klass* loading_klass = cp->pool_holder();
857 bool is_accessible = false;
858 JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass));
859 Symbol* symbol = nullptr;
860 if (klass.is_null()) {
861 constantTag tag = cp->tag_at(index);
862 if (tag.is_klass()) {
863 // The klass has been inserted into the constant pool
864 // very recently.
865 klass = cp->resolved_klass_at(index);
866 } else if (tag.is_symbol()) {
867 symbol = cp->symbol_at(index);
868 } else {
869 assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag");
870 symbol = cp->klass_name_at(index);
871 }
872 }
873 JVMCIObject result;
874 if (!klass.is_null()) {
875 result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
876 } else {
877 result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL);
878 }
879 return JVMCIENV->get_jobject(result);
880 C2V_END
881
882 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
883 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
884 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
885 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop));
886 C2V_END
887
888 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jbyte opcode, ARGUMENT_PAIR(caller)))
889 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
890 methodHandle caller(THREAD, UNPACK_PAIR(Method, caller));
891 InstanceKlass* pool_holder = cp->pool_holder();
892 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
893 methodHandle method(THREAD, JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder));
894 JFR_ONLY(if (method.not_null()) Jfr::on_resolution(caller(), method(), CHECK_NULL);)
895 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
896 return JVMCIENV->get_jobject(result);
897 C2V_END
898
899 C2V_VMENTRY_0(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
900 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
901 return cp->remap_instruction_operand_from_cache(index);
902 C2V_END
903
904 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, ARGUMENT_PAIR(method), jbyte opcode, jintArray info_handle))
905 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
906 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
907 fieldDescriptor fd;
908 methodHandle mh(THREAD, UNPACK_PAIR(Method, method));
909 LinkInfo link_info(cp, index, mh, code, CHECK_NULL);
910 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_NULL);
911 JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle);
912 if (info.is_null() || JVMCIENV->get_length(info) != 4) {
913 JVMCI_ERROR_NULL("info must not be null and have a length of 4");
914 }
915 JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int());
916 JVMCIENV->put_int_at(info, 1, fd.offset());
917 JVMCIENV->put_int_at(info, 2, fd.index());
918 JVMCIENV->put_int_at(info, 3, fd.field_flags().as_uint());
919 JVMCIKlassHandle handle(THREAD, fd.field_holder());
920 JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
921 return JVMCIENV->get_jobject(field_holder);
922 C2V_END
923
924 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method)))
925 Klass* klass = UNPACK_PAIR(Klass, klass);
926 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
927 InstanceKlass* holder = method->method_holder();
928 if (klass->is_interface()) {
929 JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name()));
930 }
931 if (!holder->is_interface()) {
932 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()));
933 }
934 if (!klass->is_instance_klass()) {
935 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
936 }
937 if (!InstanceKlass::cast(klass)->is_linked()) {
938 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name()));
939 }
940 if (!klass->is_subtype_of(holder)) {
941 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s does not implement interface %s", klass->external_name(), holder->external_name()));
942 }
943 return LinkResolver::vtable_index_of_interface_method(klass, method);
944 C2V_END
945
946 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(receiver), ARGUMENT_PAIR(method), ARGUMENT_PAIR(caller)))
947 Klass* recv_klass = UNPACK_PAIR(Klass, receiver);
948 Klass* caller_klass = UNPACK_PAIR(Klass, caller);
949 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
950
951 Klass* resolved = method->method_holder();
952 Symbol* h_name = method->name();
953 Symbol* h_signature = method->signature();
954
955 if (MethodHandles::is_signature_polymorphic_method(method())) {
956 // Signature polymorphic methods are already resolved, JVMCI just returns null in this case.
957 return nullptr;
958 }
959
960 if (method->name() == vmSymbols::clone_name() &&
961 resolved == vmClasses::Object_klass() &&
962 recv_klass->is_array_klass()) {
963 // Resolution of the clone method on arrays always returns Object.clone even though that method
964 // has protected access. There's some trickery in the access checking to make this all work out
965 // so it's necessary to pass in the array class as the resolved class to properly trigger this.
966 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See
967 // LinkResolver::check_method_accessability for the matching logic.
968 resolved = recv_klass;
969 }
970
971 LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
972 Method* m = nullptr;
973 // Only do exact lookup if receiver klass has been linked. Otherwise,
974 // the vtable has not been setup, and the LinkResolver will fail.
975 if (recv_klass->is_array_klass() ||
976 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
977 if (resolved->is_interface()) {
978 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
979 } else {
980 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
981 }
982 }
983
984 if (m == nullptr) {
985 // Return null if there was a problem with lookup (uninitialized class, etc.)
986 return nullptr;
987 }
988
989 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, m), JVMCI_CHECK_NULL);
990 return JVMCIENV->get_jobject(result);
991 C2V_END
992
993 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
994 Klass* klass = UNPACK_PAIR(Klass, klass);
995 assert(klass != nullptr, "method must not be called for primitive types");
996 if (!klass->is_instance_klass()) {
997 return false;
998 }
999 InstanceKlass* iklass = InstanceKlass::cast(klass);
1000 return Dependencies::find_finalizable_subclass(iklass) != nullptr;
1001 C2V_END
1002
1003 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1004 Klass* klass = UNPACK_PAIR(Klass, klass);
1005 if (!klass->is_instance_klass()) {
1006 return nullptr;
1007 }
1008 InstanceKlass* iklass = InstanceKlass::cast(klass);
1009 methodHandle clinit(THREAD, iklass->class_initializer());
1010 JVMCIObject result = JVMCIENV->get_jvmci_method(clinit, JVMCI_CHECK_NULL);
1011 return JVMCIENV->get_jobject(result);
1012 C2V_END
1013
1014 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr))
1015 address target_addr = (address) addr;
1016 if (target_addr != 0x0) {
1017 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
1018 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
1019 return MAX2(ABS(off_low), ABS(off_high));
1020 }
1021 return -1;
1022 C2V_END
1023
1024 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1025 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1026 method->set_is_not_c1_compilable();
1027 method->set_is_not_c2_compilable();
1028 method->set_dont_inline(true);
1029 C2V_END
1030
1031 C2V_VMENTRY_0(jint, getInstallCodeFlags, (JNIEnv *env, jobject))
1032 int flags = 0;
1033 #ifndef PRODUCT
1034 flags |= 0x0001; // VM will install block comments
1035 flags |= 0x0004; // Enable HotSpotJVMCIRuntime.Option.CodeSerializationTypeInfo if not explicitly set
1036 #endif
1037 if (JvmtiExport::can_hotswap_or_post_breakpoint()) {
1038 // VM needs to track method dependencies
1039 flags |= 0x0002;
1040 }
1041 return flags;
1042 C2V_END
1043
1044 C2V_VMENTRY_0(jint, installCode0, (JNIEnv *env, jobject,
1045 jlong compiled_code_buffer,
1046 jlong serialization_ns,
1047 bool with_type_info,
1048 jobject compiled_code,
1049 jobjectArray object_pool,
1050 jobject installed_code,
1051 jlong failed_speculations_address,
1052 jbyteArray speculations_obj))
1053 HandleMark hm(THREAD);
1054 JNIHandleMark jni_hm(thread);
1055
1056 JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
1057 objArrayHandle object_pool_handle(thread, JVMCIENV->is_hotspot() ? (objArrayOop) JNIHandles::resolve(object_pool) : nullptr);
1058
1059 CodeBlob* cb = nullptr;
1060 JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code);
1061 JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj);
1062
1063 int speculations_len = JVMCIENV->get_length(speculations_handle);
1064 char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len);
1065 JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len);
1066
1067 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR);
1068 JVMCICompiler::CodeInstallStats* stats = compiler->code_install_stats(!thread->is_Compiler_thread());
1069 elapsedTimer *timer = stats->timer();
1070 timer->add_nanoseconds(serialization_ns);
1071 TraceTime install_time("installCode", timer);
1072
1073 CodeInstaller installer(JVMCIENV);
1074
1075 JVMCI::CodeInstallResult result = installer.install(compiler,
1076 compiled_code_buffer,
1077 with_type_info,
1078 compiled_code_handle,
1079 object_pool_handle,
1080 cb,
1081 installed_code_handle,
1082 (FailedSpeculation**)(address) failed_speculations_address,
1083 speculations,
1084 speculations_len,
1085 JVMCI_CHECK_0);
1086
1087 if (PrintCodeCacheOnCompilation) {
1088 stringStream s;
1089 // Dump code cache into a buffer before locking the tty,
1090 {
1091 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
1092 CodeCache::print_summary(&s, false);
1093 }
1094 ttyLocker ttyl;
1095 tty->print_raw_cr(s.freeze());
1096 }
1097
1098 if (result != JVMCI::ok) {
1099 assert(cb == nullptr, "should be");
1100 } else {
1101 stats->on_install(cb);
1102 if (installed_code_handle.is_non_null()) {
1103 if (cb->is_nmethod()) {
1104 assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type");
1105 // Clear the link to an old nmethod first
1106 JVMCIObject nmethod_mirror = installed_code_handle;
1107 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, true, JVMCI_CHECK_0);
1108 } else {
1109 assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type");
1110 }
1111 // Initialize the link to the new code blob
1112 JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0);
1113 }
1114 }
1115 return result;
1116 C2V_END
1117
1118 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject))
1119 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK);
1120 CompilerStatistics* stats = compiler->stats();
1121 stats->_standard.reset();
1122 stats->_osr.reset();
1123 C2V_END
1124
1125 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode))
1126 HandleMark hm(THREAD);
1127
1128 if (installedCode == nullptr) {
1129 JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null");
1130 }
1131
1132 JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode);
1133 CodeBlob* cb = JVMCIENV->get_code_blob(installedCodeObject);
1134 if (cb == nullptr) {
1135 return nullptr;
1136 }
1137
1138 // We don't want the stringStream buffer to resize during disassembly as it
1139 // uses scoped resource memory. If a nested function called during disassembly uses
1140 // a ResourceMark and the buffer expands within the scope of the mark,
1141 // the buffer becomes garbage when that scope is exited. Experience shows that
1142 // the disassembled code is typically about 10x the code size so a fixed buffer
1143 // sized to 20x code size plus a fixed amount for header info should be sufficient.
1144 int bufferSize = cb->code_size() * 20 + 1024;
1145 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
1146 stringStream st(buffer, bufferSize);
1147 Disassembler::decode(cb, &st);
1148 if (st.size() <= 0) {
1149 return nullptr;
1150 }
1151
1152 JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL);
1153 return JVMCIENV->get_jobject(result);
1154 C2V_END
1155
1156 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int bci))
1157 HandleMark hm(THREAD);
1158
1159 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1160 JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL);
1161 return JVMCIENV->get_jobject(element);
1162 C2V_END
1163
1164 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod))
1165 // The incoming arguments array would have to contain JavaConstants instead of regular objects
1166 // and the return value would have to be wrapped as a JavaConstant.
1167 requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL);
1168
1169 HandleMark hm(THREAD);
1170
1171 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1172 nmethod* nm = JVMCIENV->get_nmethod(nmethod_mirror);
1173 if (nm == nullptr || !nm->is_in_use()) {
1174 JVMCI_THROW_NULL(InvalidInstalledCodeException);
1175 }
1176 methodHandle mh(THREAD, nm->method());
1177 Symbol* signature = mh->signature();
1178 JavaCallArguments jca(mh->size_of_parameters());
1179
1180 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
1181 JavaValue result(jap.return_type());
1182 jca.set_alternative_target(Handle(THREAD, JNIHandles::resolve(nmethod_mirror.as_jobject())));
1183 JavaCalls::call(&result, mh, &jca, CHECK_NULL);
1184
1185 if (jap.return_type() == T_VOID) {
1186 return nullptr;
1187 } else if (is_reference_type(jap.return_type())) {
1188 return JNIHandles::make_local(THREAD, result.get_oop());
1189 } else {
1190 jvalue *value = (jvalue *) result.get_value_addr();
1191 // Narrow the value down if required (Important on big endian machines)
1192 switch (jap.return_type()) {
1193 case T_BOOLEAN:
1194 value->z = (jboolean) value->i;
1195 break;
1196 case T_BYTE:
1197 value->b = (jbyte) value->i;
1198 break;
1199 case T_CHAR:
1200 value->c = (jchar) value->i;
1201 break;
1202 case T_SHORT:
1203 value->s = (jshort) value->i;
1204 break;
1205 default:
1206 break;
1207 }
1208 JVMCIObject o = JVMCIENV->create_box(jap.return_type(), value, JVMCI_CHECK_NULL);
1209 return JVMCIENV->get_jobject(o);
1210 }
1211 C2V_END
1212
1213 C2V_VMENTRY_NULL(jlongArray, getLineNumberTable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1214 Method* method = UNPACK_PAIR(Method, method);
1215 if (!method->has_linenumber_table()) {
1216 return nullptr;
1217 }
1218 u2 num_entries = 0;
1219 CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
1220 while (streamForSize.read_pair()) {
1221 num_entries++;
1222 }
1223
1224 CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
1225 JVMCIPrimitiveArray result = JVMCIENV->new_longArray(2 * num_entries, JVMCI_CHECK_NULL);
1226
1227 int i = 0;
1228 jlong value;
1229 while (stream.read_pair()) {
1230 value = ((jlong) stream.bci());
1231 JVMCIENV->put_long_at(result, i, value);
1232 value = ((jlong) stream.line());
1233 JVMCIENV->put_long_at(result, i + 1, value);
1234 i += 2;
1235 }
1236
1237 return (jlongArray) JVMCIENV->get_jobject(result);
1238 C2V_END
1239
1240 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1241 Method* method = UNPACK_PAIR(Method, method);
1242 if (!method->has_localvariable_table()) {
1243 return 0;
1244 }
1245 return (jlong) (address) method->localvariable_table_start();
1246 C2V_END
1247
1248 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1249 Method* method = UNPACK_PAIR(Method, method);
1250 return method->localvariable_table_length();
1251 C2V_END
1252
1253 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1254 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1255 MethodCounters* mcs = method->method_counters();
1256 if (mcs != nullptr) {
1257 mcs->clear_counters();
1258 }
1259 NOT_PRODUCT(method->set_compiled_invocation_count(0));
1260
1261 CompiledMethod* code = method->code();
1262 if (code != nullptr) {
1263 code->make_not_entrant();
1264 }
1265
1266 MethodData* method_data = method->method_data();
1267 if (method_data == nullptr) {
1268 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
1269 method_data = MethodData::allocate(loader_data, method, CHECK);
1270 method->set_method_data(method_data);
1271 } else {
1272 method_data->initialize();
1273 }
1274 C2V_END
1275
1276
1277 C2V_VMENTRY(void, invalidateHotSpotNmethod, (JNIEnv* env, jobject, jobject hs_nmethod, jboolean deoptimize))
1278 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1279 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, deoptimize, JVMCI_CHECK);
1280 C2V_END
1281
1282 C2V_VMENTRY_NULL(jlongArray, collectCounters, (JNIEnv* env, jobject))
1283 // Returns a zero length array if counters aren't enabled
1284 JVMCIPrimitiveArray array = JVMCIENV->new_longArray(JVMCICounterSize, JVMCI_CHECK_NULL);
1285 if (JVMCICounterSize > 0) {
1286 jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize);
1287 JavaThread::collect_counters(temp_array, JVMCICounterSize);
1288 JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize);
1289 }
1290 return (jlongArray) JVMCIENV->get_jobject(array);
1291 C2V_END
1292
1293 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject))
1294 return (jint) JVMCICounterSize;
1295 C2V_END
1296
1297 C2V_VMENTRY_0(jboolean, setCountersSize, (JNIEnv* env, jobject, jint new_size))
1298 return JavaThread::resize_all_jvmci_counters(new_size);
1299 C2V_END
1300
1301 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int entry_bci))
1302 HandleMark hm(THREAD);
1303 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1304 if (method.is_null()) {
1305 JVMCI_THROW_0(NullPointerException);
1306 }
1307 if (entry_bci >= method->code_size() || entry_bci < -1) {
1308 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci));
1309 }
1310 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
1311 C2V_END
1312
1313
1314 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong method_data_pointer))
1315 MethodData* mdo = (MethodData*) method_data_pointer;
1316 return mdo != nullptr && mdo->is_mature();
1317 C2V_END
1318
1319 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int entry_bci, int comp_level))
1320 Method* method = UNPACK_PAIR(Method, method);
1321 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != nullptr;
1322 C2V_END
1323
1324 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol))
1325 JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL);
1326 return JVMCIENV->get_jobject(sym);
1327 C2V_END
1328
1329 C2V_VMENTRY_NULL(jobject, getSignatureName, (JNIEnv* env, jobject, jlong klass_pointer))
1330 Klass* klass = UNPACK_PAIR(Klass, klass);
1331 JVMCIObject signature = JVMCIENV->create_string(klass->signature_name(), JVMCI_CHECK_NULL);
1332 return JVMCIENV->get_jobject(signature);
1333 C2V_END
1334
1335 /*
1336 * Used by matches() to convert a ResolvedJavaMethod[] to an array of Method*.
1337 */
1338 GrowableArray<Method*>* init_resolved_methods(jobjectArray methods, JVMCIEnv* JVMCIENV) {
1339 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1340 GrowableArray<Method*>* resolved_methods = new GrowableArray<Method*>(methods_oop->length());
1341 for (int i = 0; i < methods_oop->length(); i++) {
1342 oop resolved = methods_oop->obj_at(i);
1343 Method* resolved_method = nullptr;
1344 if (resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) {
1345 resolved_method = HotSpotJVMCI::asMethod(JVMCIENV, resolved);
1346 }
1347 resolved_methods->append(resolved_method);
1348 }
1349 return resolved_methods;
1350 }
1351
1352 /*
1353 * Used by c2v_iterateFrames to check if `method` matches one of the ResolvedJavaMethods in the `methods` array.
1354 * The ResolvedJavaMethod[] array is converted to a Method* array that is then cached in the resolved_methods_ref in/out parameter.
1355 * In case of a match, the matching ResolvedJavaMethod is returned in matched_jvmci_method_ref.
1356 */
1357 bool matches(jobjectArray methods, Method* method, GrowableArray<Method*>** resolved_methods_ref, Handle* matched_jvmci_method_ref, Thread* THREAD, JVMCIEnv* JVMCIENV) {
1358 GrowableArray<Method*>* resolved_methods = *resolved_methods_ref;
1359 if (resolved_methods == nullptr) {
1360 resolved_methods = init_resolved_methods(methods, JVMCIENV);
1361 *resolved_methods_ref = resolved_methods;
1362 }
1363 assert(method != nullptr, "method should not be null");
1364 assert(resolved_methods->length() == ((objArrayOop) JNIHandles::resolve(methods))->length(), "arrays must have the same length");
1365 for (int i = 0; i < resolved_methods->length(); i++) {
1366 Method* m = resolved_methods->at(i);
1367 if (m == method) {
1368 *matched_jvmci_method_ref = Handle(THREAD, ((objArrayOop) JNIHandles::resolve(methods))->obj_at(i));
1369 return true;
1370 }
1371 }
1372 return false;
1373 }
1374
1375 /*
1376 * Resolves an interface call to a concrete method handle.
1377 */
1378 methodHandle resolve_interface_call(Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
1379 CallInfo callinfo;
1380 Handle receiver = args->receiver();
1381 Klass* recvrKlass = receiver.is_null() ? (Klass*)nullptr : receiver->klass();
1382 LinkInfo link_info(spec_klass, name, signature);
1383 LinkResolver::resolve_interface_call(
1384 callinfo, receiver, recvrKlass, link_info, true, CHECK_(methodHandle()));
1385 methodHandle method(THREAD, callinfo.selected_method());
1386 assert(method.not_null(), "should have thrown exception");
1387 return method;
1388 }
1389
1390 /*
1391 * Used by c2v_iterateFrames to make a new vframeStream at the given compiled frame id (stack pointer) and vframe id.
1392 */
1393 void resync_vframestream_to_compiled_frame(vframeStream& vfst, intptr_t* stack_pointer, int vframe_id, JavaThread* thread, TRAPS) {
1394 vfst = vframeStream(thread);
1395 while (vfst.frame_id() != stack_pointer && !vfst.at_end()) {
1396 vfst.next();
1397 }
1398 if (vfst.frame_id() != stack_pointer) {
1399 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1400 }
1401 if (vfst.is_interpreted_frame()) {
1402 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1403 }
1404 while (vfst.vframe_id() != vframe_id) {
1405 if (vfst.at_end()) {
1406 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt")
1407 }
1408 vfst.next();
1409 assert(!vfst.is_interpreted_frame(), "Wrong frame type");
1410 }
1411 }
1412
1413 /*
1414 * Used by c2v_iterateFrames. Returns an array of any unallocated scope objects or null if none.
1415 */
1416 GrowableArray<ScopeValue*>* get_unallocated_objects_or_null(GrowableArray<ScopeValue*>* scope_objects) {
1417 GrowableArray<ScopeValue*>* unallocated = nullptr;
1418 for (int i = 0; i < scope_objects->length(); i++) {
1419 ObjectValue* sv = (ObjectValue*) scope_objects->at(i);
1420 if (sv->value().is_null()) {
1421 if (unallocated == nullptr) {
1422 unallocated = new GrowableArray<ScopeValue*>(scope_objects->length());
1423 }
1424 unallocated->append(sv);
1425 }
1426 }
1427 return unallocated;
1428 }
1429
1430 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
1431
1432 if (!thread->has_last_Java_frame()) {
1433 return nullptr;
1434 }
1435 Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
1436
1437 requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL);
1438
1439 HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1440
1441 vframeStream vfst(thread);
1442 jobjectArray methods = initial_methods;
1443 methodHandle visitor_method;
1444 GrowableArray<Method*>* resolved_methods = nullptr;
1445
1446 while (!vfst.at_end()) { // frame loop
1447 bool realloc_called = false;
1448 intptr_t* frame_id = vfst.frame_id();
1449
1450 // Previous compiledVFrame of this frame; use with at_scope() to reuse scope object pool.
1451 compiledVFrame* prev_cvf = nullptr;
1452
1453 for (; !vfst.at_end() && vfst.frame_id() == frame_id; vfst.next()) { // vframe loop
1454 int frame_number = 0;
1455 Method *method = vfst.method();
1456 int bci = vfst.bci();
1457
1458 Handle matched_jvmci_method;
1459 if (methods == nullptr || matches(methods, method, &resolved_methods, &matched_jvmci_method, THREAD, JVMCIENV)) {
1460 if (initialSkip > 0) {
1461 initialSkip--;
1462 continue;
1463 }
1464 javaVFrame* vf;
1465 if (prev_cvf != nullptr && prev_cvf->frame_pointer()->id() == frame_id) {
1466 assert(prev_cvf->is_compiled_frame(), "expected compiled Java frame");
1467 vf = prev_cvf->at_scope(vfst.decode_offset(), vfst.vframe_id());
1468 } else {
1469 vf = vfst.asJavaVFrame();
1470 }
1471
1472 StackValueCollection* locals = nullptr;
1473 typeArrayHandle localIsVirtual_h;
1474 if (vf->is_compiled_frame()) {
1475 // compiled method frame
1476 compiledVFrame* cvf = compiledVFrame::cast(vf);
1477
1478 ScopeDesc* scope = cvf->scope();
1479 // native wrappers do not have a scope
1480 if (scope != nullptr && scope->objects() != nullptr) {
1481 prev_cvf = cvf;
1482
1483 GrowableArray<ScopeValue*>* objects = nullptr;
1484 if (!realloc_called) {
1485 objects = scope->objects();
1486 } else {
1487 // some object might already have been re-allocated, only reallocate the non-allocated ones
1488 objects = get_unallocated_objects_or_null(scope->objects());
1489 }
1490
1491 if (objects != nullptr) {
1492 RegisterMap reg_map(vf->register_map());
1493 bool realloc_failures = Deoptimization::realloc_objects(thread, vf->frame_pointer(), ®_map, objects, CHECK_NULL);
1494 Deoptimization::reassign_fields(vf->frame_pointer(), ®_map, objects, realloc_failures, false);
1495 realloc_called = true;
1496 }
1497
1498 GrowableArray<ScopeValue*>* local_values = scope->locals();
1499 for (int i = 0; i < local_values->length(); i++) {
1500 ScopeValue* value = local_values->at(i);
1501 if (value->is_object()) {
1502 if (localIsVirtual_h.is_null()) {
1503 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1504 localIsVirtual_h = typeArrayHandle(THREAD, array_oop);
1505 }
1506 localIsVirtual_h->bool_at_put(i, true);
1507 }
1508 }
1509 }
1510
1511 locals = cvf->locals();
1512 frame_number = cvf->vframe_id();
1513 } else {
1514 // interpreted method frame
1515 interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1516
1517 locals = ivf->locals();
1518 }
1519 assert(bci == vf->bci(), "wrong bci");
1520 assert(method == vf->method(), "wrong method");
1521
1522 Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1523 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), bci);
1524 if (matched_jvmci_method.is_null()) {
1525 methodHandle mh(THREAD, method);
1526 JVMCIObject jvmci_method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1527 matched_jvmci_method = Handle(THREAD, JNIHandles::resolve(jvmci_method.as_jobject()));
1528 }
1529 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), matched_jvmci_method());
1530 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), localIsVirtual_h());
1531
1532 HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM));
1533 HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) frame_id);
1534 HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number);
1535
1536 // initialize the locals array
1537 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1538 objArrayHandle array(THREAD, array_oop);
1539 for (int i = 0; i < locals->size(); i++) {
1540 StackValue* var = locals->at(i);
1541 if (var->type() == T_OBJECT) {
1542 array->obj_at_put(i, locals->at(i)->get_obj()());
1543 }
1544 }
1545 HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array());
1546 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE);
1547
1548 JavaValue result(T_OBJECT);
1549 JavaCallArguments args(visitor);
1550 if (visitor_method.is_null()) {
1551 visitor_method = resolve_interface_call(HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL);
1552 }
1553
1554 args.push_oop(frame_reference);
1555 JavaCalls::call(&result, visitor_method, &args, CHECK_NULL);
1556 if (result.get_oop() != nullptr) {
1557 return JNIHandles::make_local(thread, result.get_oop());
1558 }
1559 if (methods == initial_methods) {
1560 methods = match_methods;
1561 if (resolved_methods != nullptr && JNIHandles::resolve(match_methods) != JNIHandles::resolve(initial_methods)) {
1562 resolved_methods = nullptr;
1563 }
1564 }
1565 assert(initialSkip == 0, "There should be no match before initialSkip == 0");
1566 if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) {
1567 // the frame has been deoptimized, we need to re-synchronize the frame and vframe
1568 prev_cvf = nullptr;
1569 intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference());
1570 resync_vframestream_to_compiled_frame(vfst, stack_pointer, frame_number, thread, CHECK_NULL);
1571 }
1572 }
1573 } // end of vframe loop
1574 } // end of frame loop
1575
1576 // the end was reached without finding a matching method
1577 return nullptr;
1578 C2V_END
1579
1580 C2V_VMENTRY_0(int, resolveInvokeDynamicInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
1581 if (!ConstantPool::is_invokedynamic_index(index)) {
1582 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("not an invokedynamic index %d", index));
1583 }
1584
1585 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1586 CallInfo callInfo;
1587 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK_0);
1588 int indy_index = cp->decode_invokedynamic_index(index);
1589 cp->cache()->set_dynamic_call(callInfo, indy_index);
1590 return cp->resolved_indy_entry_at(indy_index)->constant_pool_index();
1591 C2V_END
1592
1593 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
1594 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1595 Klass* holder = cp->klass_ref_at(index, Bytecodes::_invokehandle, CHECK);
1596 Symbol* name = cp->name_ref_at(index, Bytecodes::_invokehandle);
1597 if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1598 CallInfo callInfo;
1599 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1600 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1601 cp_cache_entry->set_method_handle(cp, callInfo);
1602 }
1603 C2V_END
1604
1605 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
1606 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1607 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1608 if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) {
1609 // MethodHandle.invoke* --> LambdaForm?
1610 ResourceMark rm;
1611
1612 LinkInfo link_info(cp, index, Bytecodes::_invokehandle, CATCH);
1613
1614 Klass* resolved_klass = link_info.resolved_klass();
1615
1616 Symbol* name_sym = cp->name_ref_at(index, Bytecodes::_invokehandle);
1617
1618 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1619 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1620
1621 methodHandle adapter_method(THREAD, cp_cache_entry->f1_as_method());
1622
1623 methodHandle resolved_method(adapter_method);
1624
1625 // Can we treat it as a regular invokevirtual?
1626 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1627 vmassert(!resolved_method->is_static(),"!");
1628 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1629 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1630 vmassert(cp_cache_entry->appendix_if_resolved(cp) == nullptr, "!");
1631
1632 methodHandle m(THREAD, LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1633 vmassert(m == resolved_method, "!!");
1634 return -1;
1635 }
1636
1637 return Bytecodes::_invokevirtual;
1638 }
1639 if (cp->is_invokedynamic_index(index)) {
1640 if (cp->resolved_indy_entry_at(cp->decode_cpcache_index(index))->is_resolved()) {
1641 return Bytecodes::_invokedynamic;
1642 }
1643 }
1644 return -1;
1645 C2V_END
1646
1647
1648 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject))
1649 JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL);
1650 JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL);
1651 JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL);
1652 JVMCIENV->put_object_at(holders, 0, mh);
1653 JVMCIENV->put_object_at(holders, 1, vh);
1654 return JVMCIENV->get_jobject(holders);
1655 C2V_END
1656
1657 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject))
1658 //see compute_recording_non_safepoints in debugInfroRec.cpp
1659 if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1660 return true;
1661 }
1662 return DebugNonSafepoints;
1663 C2V_END
1664
1665 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1666 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate))
1667 JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame);
1668 if (hs_frame.is_null()) {
1669 JVMCI_THROW_MSG(NullPointerException, "stack frame is null");
1670 }
1671
1672 requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK);
1673
1674 JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK);
1675
1676 // look for the given stack frame
1677 StackFrameStream fst(thread, false /* update */, true /* process_frames */);
1678 intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame);
1679 while (fst.current()->id() != stack_pointer && !fst.is_done()) {
1680 fst.next();
1681 }
1682 if (fst.current()->id() != stack_pointer) {
1683 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found");
1684 }
1685
1686 if (invalidate) {
1687 if (!fst.current()->is_compiled_frame()) {
1688 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1689 }
1690 assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
1691 ((nmethod*) fst.current()->cb())->make_not_entrant();
1692 }
1693 Deoptimization::deoptimize(thread, *fst.current(), Deoptimization::Reason_none);
1694 // look for the frame again as it has been updated by deopt (pc, deopt state...)
1695 StackFrameStream fstAfterDeopt(thread, true /* update */, true /* process_frames */);
1696 while (fstAfterDeopt.current()->id() != stack_pointer && !fstAfterDeopt.is_done()) {
1697 fstAfterDeopt.next();
1698 }
1699 if (fstAfterDeopt.current()->id() != stack_pointer) {
1700 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found after deopt");
1701 }
1702
1703 vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1704 if (!vf->is_compiled_frame()) {
1705 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1706 }
1707
1708 GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1709 while (true) {
1710 assert(vf->is_compiled_frame(), "Wrong frame type");
1711 virtualFrames->push(compiledVFrame::cast(vf));
1712 if (vf->is_top()) {
1713 break;
1714 }
1715 vf = vf->sender();
1716 }
1717
1718 int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame);
1719 if (last_frame_number >= virtualFrames->length()) {
1720 JVMCI_THROW_MSG(IllegalStateException, "invalid frame number");
1721 }
1722
1723 // Reallocate the non-escaping objects and restore their fields.
1724 assert (virtualFrames->at(last_frame_number)->scope() != nullptr,"invalid scope");
1725 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1726
1727 if (objects == nullptr) {
1728 // no objects to materialize
1729 return;
1730 }
1731
1732 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK);
1733 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
1734
1735 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1736 compiledVFrame* cvf = virtualFrames->at(frame_index);
1737
1738 GrowableArray<ScopeValue*>* scopedValues = cvf->scope()->locals();
1739 StackValueCollection* locals = cvf->locals();
1740 if (locals != nullptr) {
1741 for (int i2 = 0; i2 < locals->size(); i2++) {
1742 StackValue* var = locals->at(i2);
1743 if (var->type() == T_OBJECT && scopedValues->at(i2)->is_object()) {
1744 jvalue val;
1745 val.l = cast_from_oop<jobject>(locals->at(i2)->get_obj()());
1746 cvf->update_local(T_OBJECT, i2, val);
1747 }
1748 }
1749 }
1750
1751 GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1752 StackValueCollection* expressions = cvf->expressions();
1753 if (expressions != nullptr) {
1754 for (int i2 = 0; i2 < expressions->size(); i2++) {
1755 StackValue* var = expressions->at(i2);
1756 if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) {
1757 jvalue val;
1758 val.l = cast_from_oop<jobject>(expressions->at(i2)->get_obj()());
1759 cvf->update_stack(T_OBJECT, i2, val);
1760 }
1761 }
1762 }
1763
1764 GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors();
1765 GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
1766 if (monitors != nullptr) {
1767 for (int i2 = 0; i2 < monitors->length(); i2++) {
1768 cvf->update_monitor(i2, monitors->at(i2));
1769 }
1770 }
1771 }
1772
1773 // all locals are materialized by now
1774 JVMCIENV->set_HotSpotStackFrameReference_localIsVirtual(hs_frame, nullptr);
1775 // update the locals array
1776 JVMCIObjectArray array = JVMCIENV->get_HotSpotStackFrameReference_locals(hs_frame);
1777 StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1778 for (int i = 0; i < locals->size(); i++) {
1779 StackValue* var = locals->at(i);
1780 if (var->type() == T_OBJECT) {
1781 JVMCIENV->put_object_at(array, i, HotSpotJVMCI::wrap(locals->at(i)->get_obj()()));
1782 }
1783 }
1784 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, hs_frame, JNI_TRUE);
1785 C2V_END
1786
1787 // Use of tty does not require the current thread to be attached to the VM
1788 // so no need for a full C2V_VMENTRY transition.
1789 C2V_VMENTRY_PREFIX(void, writeDebugOutput, (JNIEnv* env, jobject, jlong buffer, jint length, bool flush))
1790 if (length <= 8) {
1791 tty->write((char*) &buffer, length);
1792 } else {
1793 tty->write((char*) buffer, length);
1794 }
1795 if (flush) {
1796 tty->flush();
1797 }
1798 C2V_END
1799
1800 // Use of tty does not require the current thread to be attached to the VM
1801 // so no need for a full C2V_VMENTRY transition.
1802 C2V_VMENTRY_PREFIX(void, flushDebugOutput, (JNIEnv* env, jobject))
1803 tty->flush();
1804 C2V_END
1805
1806 C2V_VMENTRY_0(jint, methodDataProfileDataSize, (JNIEnv* env, jobject, jlong method_data_pointer, jint position))
1807 MethodData* mdo = (MethodData*) method_data_pointer;
1808 ProfileData* profile_data = mdo->data_at(position);
1809 if (mdo->is_valid(profile_data)) {
1810 return profile_data->size_in_bytes();
1811 }
1812 // Java code should never directly access the extra data section
1813 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Invalid profile data position %d", position));
1814 C2V_END
1815
1816 C2V_VMENTRY_0(jint, methodDataExceptionSeen, (JNIEnv* env, jobject, jlong method_data_pointer, jint bci))
1817 MethodData* mdo = (MethodData*) method_data_pointer;
1818 MutexLocker mu(mdo->extra_data_lock());
1819 DataLayout* data = mdo->extra_data_base();
1820 DataLayout* end = mdo->args_data_limit();
1821 for (;; data = mdo->next_extra(data)) {
1822 assert(data < end, "moved past end of extra data");
1823 int tag = data->tag();
1824 switch(tag) {
1825 case DataLayout::bit_data_tag: {
1826 BitData* bit_data = (BitData*) data->data_in();
1827 if (bit_data->bci() == bci) {
1828 return bit_data->exception_seen() ? 1 : 0;
1829 }
1830 break;
1831 }
1832 case DataLayout::no_tag:
1833 // There is a free slot so return false since a BitData would have been allocated to record
1834 // true if it had been seen.
1835 return 0;
1836 case DataLayout::arg_info_data_tag:
1837 // The bci wasn't found and there are no free slots to record a trap for this location, so always
1838 // return unknown.
1839 return -1;
1840 }
1841 }
1842 ShouldNotReachHere();
1843 return -1;
1844 C2V_END
1845
1846 C2V_VMENTRY_NULL(jobject, getInterfaces, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1847 Klass* klass = UNPACK_PAIR(Klass, klass);
1848 if (klass == nullptr) {
1849 JVMCI_THROW_0(NullPointerException);
1850 }
1851
1852 if (!klass->is_instance_klass()) {
1853 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
1854 }
1855 InstanceKlass* iklass = InstanceKlass::cast(klass);
1856
1857 // Regular instance klass, fill in all local interfaces
1858 int size = iklass->local_interfaces()->length();
1859 JVMCIObjectArray interfaces = JVMCIENV->new_HotSpotResolvedObjectTypeImpl_array(size, JVMCI_CHECK_NULL);
1860 for (int index = 0; index < size; index++) {
1861 JVMCIKlassHandle klass(THREAD);
1862 Klass* k = iklass->local_interfaces()->at(index);
1863 klass = k;
1864 JVMCIObject type = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
1865 JVMCIENV->put_object_at(interfaces, index, type);
1866 }
1867 return JVMCIENV->get_jobject(interfaces);
1868 C2V_END
1869
1870 C2V_VMENTRY_NULL(jobject, getComponentType, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1871 Klass* klass = UNPACK_PAIR(Klass, klass);
1872 if (klass == nullptr) {
1873 JVMCI_THROW_0(NullPointerException);
1874 }
1875
1876 if (!klass->is_array_klass()) {
1877 return nullptr;
1878 }
1879 oop mirror = klass->java_mirror();
1880 oop component_mirror = java_lang_Class::component_mirror(mirror);
1881 if (component_mirror == nullptr) {
1882 JVMCI_THROW_MSG_0(NullPointerException,
1883 err_msg("Component mirror for array class %s is null", klass->external_name()))
1884 }
1885
1886 Klass* component_klass = java_lang_Class::as_Klass(component_mirror);
1887 if (component_klass != nullptr) {
1888 JVMCIKlassHandle klass_handle(THREAD, component_klass);
1889 JVMCIObject result = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
1890 return JVMCIENV->get_jobject(result);
1891 }
1892 BasicType type = java_lang_Class::primitive_type(component_mirror);
1893 JVMCIObject result = JVMCIENV->get_jvmci_primitive_type(type);
1894 return JVMCIENV->get_jobject(result);
1895 C2V_END
1896
1897 C2V_VMENTRY(void, ensureInitialized, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1898 Klass* klass = UNPACK_PAIR(Klass, klass);
1899 if (klass == nullptr) {
1900 JVMCI_THROW(NullPointerException);
1901 }
1902 if (klass->should_be_initialized()) {
1903 InstanceKlass* k = InstanceKlass::cast(klass);
1904 k->initialize(CHECK);
1905 }
1906 C2V_END
1907
1908 C2V_VMENTRY(void, ensureLinked, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1909 Klass* klass = UNPACK_PAIR(Klass, klass);
1910 if (klass == nullptr) {
1911 JVMCI_THROW(NullPointerException);
1912 }
1913 if (klass->is_instance_klass()) {
1914 InstanceKlass* k = InstanceKlass::cast(klass);
1915 k->link_class(CHECK);
1916 }
1917 C2V_END
1918
1919 C2V_VMENTRY_0(jint, interpreterFrameSize, (JNIEnv* env, jobject, jobject bytecode_frame_handle))
1920 if (bytecode_frame_handle == nullptr) {
1921 JVMCI_THROW_0(NullPointerException);
1922 }
1923
1924 JVMCIObject top_bytecode_frame = JVMCIENV->wrap(bytecode_frame_handle);
1925 JVMCIObject bytecode_frame = top_bytecode_frame;
1926 int size = 0;
1927 int callee_parameters = 0;
1928 int callee_locals = 0;
1929 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1930 int extra_args = method->max_stack() - JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1931
1932 while (bytecode_frame.is_non_null()) {
1933 int locks = JVMCIENV->get_BytecodeFrame_numLocks(bytecode_frame);
1934 int temps = JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1935 bool is_top_frame = (JVMCIENV->equals(bytecode_frame, top_bytecode_frame));
1936 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1937
1938 int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
1939 temps + callee_parameters,
1940 extra_args,
1941 locks,
1942 callee_parameters,
1943 callee_locals,
1944 is_top_frame);
1945 size += frame_size;
1946
1947 callee_parameters = method->size_of_parameters();
1948 callee_locals = method->max_locals();
1949 extra_args = 0;
1950 bytecode_frame = JVMCIENV->get_BytecodePosition_caller(bytecode_frame);
1951 }
1952 return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
1953 C2V_END
1954
1955 C2V_VMENTRY(void, compileToBytecode, (JNIEnv* env, jobject, jobject lambda_form_handle))
1956 Handle lambda_form = JVMCIENV->asConstant(JVMCIENV->wrap(lambda_form_handle), JVMCI_CHECK);
1957 if (lambda_form->is_a(vmClasses::LambdaForm_klass())) {
1958 TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode");
1959 JavaValue result(T_VOID);
1960 JavaCalls::call_special(&result, lambda_form, vmClasses::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK);
1961 } else {
1962 JVMCI_THROW_MSG(IllegalArgumentException,
1963 err_msg("Unexpected type: %s", lambda_form->klass()->external_name()))
1964 }
1965 C2V_END
1966
1967 C2V_VMENTRY_0(jint, getIdentityHashCode, (JNIEnv* env, jobject, jobject object))
1968 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1969 return obj->identity_hash();
1970 C2V_END
1971
1972 C2V_VMENTRY_0(jboolean, isInternedString, (JNIEnv* env, jobject, jobject object))
1973 Handle str = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1974 if (!java_lang_String::is_instance(str())) {
1975 return false;
1976 }
1977 int len;
1978 jchar* name = java_lang_String::as_unicode_string(str(), len, CHECK_false);
1979 return (StringTable::lookup(name, len) != nullptr);
1980 C2V_END
1981
1982
1983 C2V_VMENTRY_NULL(jobject, unboxPrimitive, (JNIEnv* env, jobject, jobject object))
1984 if (object == nullptr) {
1985 JVMCI_THROW_0(NullPointerException);
1986 }
1987 Handle box = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
1988 BasicType type = java_lang_boxing_object::basic_type(box());
1989 jvalue result;
1990 if (java_lang_boxing_object::get_value(box(), &result) == T_ILLEGAL) {
1991 return nullptr;
1992 }
1993 JVMCIObject boxResult = JVMCIENV->create_box(type, &result, JVMCI_CHECK_NULL);
1994 return JVMCIENV->get_jobject(boxResult);
1995 C2V_END
1996
1997 C2V_VMENTRY_NULL(jobject, boxPrimitive, (JNIEnv* env, jobject, jobject object))
1998 if (object == nullptr) {
1999 JVMCI_THROW_0(NullPointerException);
2000 }
2001 JVMCIObject box = JVMCIENV->wrap(object);
2002 BasicType type = JVMCIENV->get_box_type(box);
2003 if (type == T_ILLEGAL) {
2004 return nullptr;
2005 }
2006 jvalue value = JVMCIENV->get_boxed_value(type, box);
2007 JavaValue box_result(T_OBJECT);
2008 JavaCallArguments jargs;
2009 Klass* box_klass = nullptr;
2010 Symbol* box_signature = nullptr;
2011 #define BOX_CASE(bt, v, argtype, name) \
2012 case bt: \
2013 jargs.push_##argtype(value.v); \
2014 box_klass = vmClasses::name##_klass(); \
2015 box_signature = vmSymbols::name##_valueOf_signature(); \
2016 break
2017
2018 switch (type) {
2019 BOX_CASE(T_BOOLEAN, z, int, Boolean);
2020 BOX_CASE(T_BYTE, b, int, Byte);
2021 BOX_CASE(T_CHAR, c, int, Character);
2022 BOX_CASE(T_SHORT, s, int, Short);
2023 BOX_CASE(T_INT, i, int, Integer);
2024 BOX_CASE(T_LONG, j, long, Long);
2025 BOX_CASE(T_FLOAT, f, float, Float);
2026 BOX_CASE(T_DOUBLE, d, double, Double);
2027 default:
2028 ShouldNotReachHere();
2029 }
2030 #undef BOX_CASE
2031
2032 JavaCalls::call_static(&box_result,
2033 box_klass,
2034 vmSymbols::valueOf_name(),
2035 box_signature, &jargs, CHECK_NULL);
2036 oop hotspot_box = box_result.get_oop();
2037 JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false);
2038 return JVMCIENV->get_jobject(result);
2039 C2V_END
2040
2041 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2042 Klass* klass = UNPACK_PAIR(Klass, klass);
2043 if (klass == nullptr) {
2044 JVMCI_THROW_0(NullPointerException);
2045 }
2046 if (!klass->is_instance_klass()) {
2047 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
2048 return JVMCIENV->get_jobjectArray(methods);
2049 }
2050
2051 InstanceKlass* iklass = InstanceKlass::cast(klass);
2052 GrowableArray<Method*> constructors_array;
2053 for (int i = 0; i < iklass->methods()->length(); i++) {
2054 Method* m = iklass->methods()->at(i);
2055 if (m->is_initializer() && !m->is_static()) {
2056 constructors_array.append(m);
2057 }
2058 }
2059 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
2060 for (int i = 0; i < constructors_array.length(); i++) {
2061 methodHandle ctor(THREAD, constructors_array.at(i));
2062 JVMCIObject method = JVMCIENV->get_jvmci_method(ctor, JVMCI_CHECK_NULL);
2063 JVMCIENV->put_object_at(methods, i, method);
2064 }
2065 return JVMCIENV->get_jobjectArray(methods);
2066 C2V_END
2067
2068 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2069 Klass* klass = UNPACK_PAIR(Klass, klass);
2070 if (klass == nullptr) {
2071 JVMCI_THROW_0(NullPointerException);
2072 }
2073 if (!klass->is_instance_klass()) {
2074 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
2075 return JVMCIENV->get_jobjectArray(methods);
2076 }
2077
2078 InstanceKlass* iklass = InstanceKlass::cast(klass);
2079 GrowableArray<Method*> methods_array;
2080 for (int i = 0; i < iklass->methods()->length(); i++) {
2081 Method* m = iklass->methods()->at(i);
2082 if (!m->is_initializer() && !m->is_overpass()) {
2083 methods_array.append(m);
2084 }
2085 }
2086 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
2087 for (int i = 0; i < methods_array.length(); i++) {
2088 methodHandle mh(THREAD, methods_array.at(i));
2089 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
2090 JVMCIENV->put_object_at(methods, i, method);
2091 }
2092 return JVMCIENV->get_jobjectArray(methods);
2093 C2V_END
2094
2095 C2V_VMENTRY_NULL(jobjectArray, getDeclaredFieldsInfo, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2096 Klass* klass = UNPACK_PAIR(Klass, klass);
2097 if (klass == nullptr) {
2098 JVMCI_THROW_0(NullPointerException);
2099 }
2100 if (!klass->is_instance_klass()) {
2101 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "not an InstanceKlass");
2102 }
2103 InstanceKlass* iklass = InstanceKlass::cast(klass);
2104 int java_fields, injected_fields;
2105 GrowableArray<FieldInfo>* fields = FieldInfoStream::create_FieldInfoArray(iklass->fieldinfo_stream(), &java_fields, &injected_fields);
2106 JVMCIObjectArray array = JVMCIENV->new_FieldInfo_array(fields->length(), JVMCIENV);
2107 for (int i = 0; i < fields->length(); i++) {
2108 JVMCIObject field_info = JVMCIENV->new_FieldInfo(fields->adr_at(i), JVMCI_CHECK_NULL);
2109 JVMCIENV->put_object_at(array, i, field_info);
2110 }
2111 return array.as_jobject();
2112 C2V_END
2113
2114 static jobject read_field_value(Handle obj, long displacement, jchar type_char, bool is_static, Thread* THREAD, JVMCIEnv* JVMCIENV) {
2115
2116 BasicType basic_type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_NULL);
2117 int basic_type_elemsize = type2aelembytes(basic_type);
2118 if (displacement < 0 || ((size_t) displacement + basic_type_elemsize > HeapWordSize * obj->size())) {
2119 // Reading outside of the object bounds
2120 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading outside object bounds");
2121 }
2122
2123 // Perform basic sanity checks on the read. Primitive reads are permitted to read outside the
2124 // bounds of their fields but object reads must map exactly onto the underlying oop slot.
2125 bool aligned = (displacement % basic_type_elemsize) == 0;
2126 if (!aligned) {
2127 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "read is unaligned");
2128 }
2129 if (basic_type == T_OBJECT) {
2130 if (obj->is_objArray()) {
2131 if (displacement < arrayOopDesc::base_offset_in_bytes(T_OBJECT)) {
2132 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
2133 }
2134 if (displacement + heapOopSize > arrayOopDesc::base_offset_in_bytes(T_OBJECT) + arrayOop(obj())->length() * heapOopSize) {
2135 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading after last array element");
2136 }
2137 if (((displacement - arrayOopDesc::base_offset_in_bytes(T_OBJECT)) % heapOopSize) != 0) {
2138 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "misaligned object read from array");
2139 }
2140 } else if (obj->is_instance()) {
2141 InstanceKlass* klass = InstanceKlass::cast(is_static ? java_lang_Class::as_Klass(obj()) : obj->klass());
2142 fieldDescriptor fd;
2143 if (!klass->find_field_from_offset(displacement, is_static, &fd)) {
2144 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Can't find field at displacement %d in object of type %s", (int) displacement, klass->external_name()));
2145 }
2146 if (fd.field_type() != T_OBJECT && fd.field_type() != T_ARRAY) {
2147 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Field at displacement %d in object of type %s is %s but expected %s", (int) displacement,
2148 klass->external_name(), type2name(fd.field_type()), type2name(basic_type)));
2149 }
2150 } else if (obj->is_typeArray()) {
2151 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Can't read objects from primitive array");
2152 } else {
2153 ShouldNotReachHere();
2154 }
2155 } else {
2156 if (obj->is_objArray()) {
2157 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Reading primitive from object array");
2158 } else if (obj->is_typeArray()) {
2159 if (displacement < arrayOopDesc::base_offset_in_bytes(ArrayKlass::cast(obj->klass())->element_type())) {
2160 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
2161 }
2162 }
2163 }
2164
2165 jlong value = 0;
2166
2167 // Treat all reads as volatile for simplicity as this function can be used
2168 // both for reading Java fields declared as volatile as well as for constant
2169 // folding Unsafe.get* methods with volatile semantics.
2170
2171 switch (basic_type) {
2172 case T_BOOLEAN: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jboolean>(displacement)); break;
2173 case T_BYTE: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jbyte>(displacement)); break;
2174 case T_SHORT: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jshort>(displacement)); break;
2175 case T_CHAR: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jchar>(displacement)); break;
2176 case T_FLOAT:
2177 case T_INT: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jint>(displacement)); break;
2178 case T_DOUBLE:
2179 case T_LONG: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jlong>(displacement)); break;
2180
2181 case T_OBJECT: {
2182 if (displacement == java_lang_Class::component_mirror_offset() && java_lang_Class::is_instance(obj()) &&
2183 (java_lang_Class::as_Klass(obj()) == nullptr || !java_lang_Class::as_Klass(obj())->is_array_klass())) {
2184 // Class.componentType for non-array classes can transiently contain an int[] that's
2185 // used for locking so always return null to mimic Class.getComponentType()
2186 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
2187 }
2188
2189 // Perform the read including any barriers required to make the reference strongly reachable
2190 // since it will be wrapped as a JavaConstant.
2191 oop value = obj->obj_field_access<MO_SEQ_CST | ON_UNKNOWN_OOP_REF>(displacement);
2192
2193 if (value == nullptr) {
2194 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
2195 } else {
2196 if (value != nullptr && !oopDesc::is_oop(value)) {
2197 // Throw an exception to improve debuggability. This check isn't totally reliable because
2198 // is_oop doesn't try to be completety safe but for most invalid values it provides a good
2199 // enough answer. It possible to crash in the is_oop call but that just means the crash happens
2200 // closer to where things went wrong.
2201 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Read bad oop " INTPTR_FORMAT " at offset " JLONG_FORMAT " in object " INTPTR_FORMAT " of type %s",
2202 p2i(value), displacement, p2i(obj()), obj->klass()->external_name()));
2203 }
2204
2205 JVMCIObject result = JVMCIENV->get_object_constant(value);
2206 return JVMCIENV->get_jobject(result);
2207 }
2208 }
2209
2210 default:
2211 ShouldNotReachHere();
2212 }
2213 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, value, JVMCI_CHECK_NULL);
2214 return JVMCIENV->get_jobject(result);
2215 }
2216
2217 C2V_VMENTRY_NULL(jobject, readStaticFieldValue, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), long displacement, jchar type_char))
2218 Klass* klass = UNPACK_PAIR(Klass, klass);
2219 Handle obj(THREAD, klass->java_mirror());
2220 return read_field_value(obj, displacement, type_char, true, THREAD, JVMCIENV);
2221 C2V_END
2222
2223 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, ARGUMENT_PAIR(expected_type), long displacement, jchar type_char))
2224 if (object == nullptr) {
2225 JVMCI_THROW_0(NullPointerException);
2226 }
2227
2228 // asConstant will throw an NPE if a constant contains null
2229 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2230
2231 Klass* expected_klass = UNPACK_PAIR(Klass, expected_type);
2232 if (expected_klass != nullptr) {
2233 InstanceKlass* expected_iklass = InstanceKlass::cast(expected_klass);
2234 if (!obj->is_a(expected_iklass)) {
2235 // Not of the expected type
2236 return nullptr;
2237 }
2238 }
2239 bool is_static = expected_klass == nullptr && java_lang_Class::is_instance(obj()) && displacement >= InstanceMirrorKlass::offset_of_static_fields();
2240 return read_field_value(obj, displacement, type_char, is_static, THREAD, JVMCIENV);
2241 C2V_END
2242
2243 C2V_VMENTRY_0(jboolean, isInstance, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jobject object))
2244 Klass* klass = UNPACK_PAIR(Klass, klass);
2245 if (object == nullptr || klass == nullptr) {
2246 JVMCI_THROW_0(NullPointerException);
2247 }
2248 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2249 return obj->is_a(klass);
2250 C2V_END
2251
2252 C2V_VMENTRY_0(jboolean, isAssignableFrom, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(subklass)))
2253 Klass* klass = UNPACK_PAIR(Klass, klass);
2254 Klass* subklass = UNPACK_PAIR(Klass, subklass);
2255 if (klass == nullptr || subklass == nullptr) {
2256 JVMCI_THROW_0(NullPointerException);
2257 }
2258 return subklass->is_subtype_of(klass);
2259 C2V_END
2260
2261 C2V_VMENTRY_0(jboolean, isTrustedForIntrinsics, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2262 Klass* klass = UNPACK_PAIR(Klass, klass);
2263 if (klass == nullptr) {
2264 JVMCI_THROW_0(NullPointerException);
2265 }
2266 InstanceKlass* ik = InstanceKlass::cast(klass);
2267 if (ik->class_loader_data()->is_boot_class_loader_data() || ik->class_loader_data()->is_platform_class_loader_data()) {
2268 return true;
2269 }
2270 return false;
2271 C2V_END
2272
2273 C2V_VMENTRY_NULL(jobject, asJavaType, (JNIEnv* env, jobject, jobject object))
2274 if (object == nullptr) {
2275 JVMCI_THROW_0(NullPointerException);
2276 }
2277 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2278 if (java_lang_Class::is_instance(obj())) {
2279 if (java_lang_Class::is_primitive(obj())) {
2280 JVMCIObject type = JVMCIENV->get_jvmci_primitive_type(java_lang_Class::primitive_type(obj()));
2281 return JVMCIENV->get_jobject(type);
2282 }
2283 Klass* klass = java_lang_Class::as_Klass(obj());
2284 JVMCIKlassHandle klass_handle(THREAD);
2285 klass_handle = klass;
2286 JVMCIObject type = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
2287 return JVMCIENV->get_jobject(type);
2288 }
2289 return nullptr;
2290 C2V_END
2291
2292
2293 C2V_VMENTRY_NULL(jobject, asString, (JNIEnv* env, jobject, jobject object))
2294 if (object == nullptr) {
2295 JVMCI_THROW_0(NullPointerException);
2296 }
2297 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2298 const char* str = java_lang_String::as_utf8_string(obj());
2299 JVMCIObject result = JVMCIENV->create_string(str, JVMCI_CHECK_NULL);
2300 return JVMCIENV->get_jobject(result);
2301 C2V_END
2302
2303
2304 C2V_VMENTRY_0(jboolean, equals, (JNIEnv* env, jobject, jobject x, jlong xHandle, jobject y, jlong yHandle))
2305 if (x == nullptr || y == nullptr) {
2306 JVMCI_THROW_0(NullPointerException);
2307 }
2308 return JVMCIENV->resolve_oop_handle(xHandle) == JVMCIENV->resolve_oop_handle(yHandle);
2309 C2V_END
2310
2311 C2V_VMENTRY_NULL(jobject, getJavaMirror, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2312 Klass* klass = UNPACK_PAIR(Klass, klass);
2313 if (klass == nullptr) {
2314 JVMCI_THROW_0(NullPointerException);
2315 }
2316 Handle mirror(THREAD, klass->java_mirror());
2317 JVMCIObject result = JVMCIENV->get_object_constant(mirror());
2318 return JVMCIENV->get_jobject(result);
2319 C2V_END
2320
2321
2322 C2V_VMENTRY_0(jint, getArrayLength, (JNIEnv* env, jobject, jobject x))
2323 if (x == nullptr) {
2324 JVMCI_THROW_0(NullPointerException);
2325 }
2326 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2327 if (xobj->klass()->is_array_klass()) {
2328 return arrayOop(xobj())->length();
2329 }
2330 return -1;
2331 C2V_END
2332
2333
2334 C2V_VMENTRY_NULL(jobject, readArrayElement, (JNIEnv* env, jobject, jobject x, int index))
2335 if (x == nullptr) {
2336 JVMCI_THROW_0(NullPointerException);
2337 }
2338 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_NULL);
2339 if (xobj->klass()->is_array_klass()) {
2340 arrayOop array = arrayOop(xobj());
2341 BasicType element_type = ArrayKlass::cast(array->klass())->element_type();
2342 if (index < 0 || index >= array->length()) {
2343 return nullptr;
2344 }
2345 JVMCIObject result;
2346
2347 if (element_type == T_OBJECT) {
2348 result = JVMCIENV->get_object_constant(objArrayOop(xobj())->obj_at(index));
2349 if (result.is_null()) {
2350 result = JVMCIENV->get_JavaConstant_NULL_POINTER();
2351 }
2352 } else {
2353 jvalue value;
2354 switch (element_type) {
2355 case T_DOUBLE: value.d = typeArrayOop(xobj())->double_at(index); break;
2356 case T_FLOAT: value.f = typeArrayOop(xobj())->float_at(index); break;
2357 case T_LONG: value.j = typeArrayOop(xobj())->long_at(index); break;
2358 case T_INT: value.i = typeArrayOop(xobj())->int_at(index); break;
2359 case T_SHORT: value.s = typeArrayOop(xobj())->short_at(index); break;
2360 case T_CHAR: value.c = typeArrayOop(xobj())->char_at(index); break;
2361 case T_BYTE: value.b = typeArrayOop(xobj())->byte_at(index); break;
2362 case T_BOOLEAN: value.z = typeArrayOop(xobj())->byte_at(index) & 1; break;
2363 default: ShouldNotReachHere();
2364 }
2365 result = JVMCIENV->create_box(element_type, &value, JVMCI_CHECK_NULL);
2366 }
2367 assert(!result.is_null(), "must have a value");
2368 return JVMCIENV->get_jobject(result);
2369 }
2370 return nullptr;;
2371 C2V_END
2372
2373
2374 C2V_VMENTRY_0(jint, arrayBaseOffset, (JNIEnv* env, jobject, jchar type_char))
2375 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
2376 return arrayOopDesc::base_offset_in_bytes(type);
2377 C2V_END
2378
2379 C2V_VMENTRY_0(jint, arrayIndexScale, (JNIEnv* env, jobject, jchar type_char))
2380 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
2381 return type2aelembytes(type);
2382 C2V_END
2383
2384 C2V_VMENTRY(void, releaseClearedOopHandles, (JNIEnv* env, jobject))
2385 JVMCIENV->runtime()->release_cleared_oop_handles();
2386 C2V_END
2387
2388 static void requireJVMCINativeLibrary(JVMCI_TRAPS) {
2389 if (!UseJVMCINativeLibrary) {
2390 JVMCI_THROW_MSG(UnsupportedOperationException, "JVMCI shared library is not enabled (requires -XX:+UseJVMCINativeLibrary)");
2391 }
2392 }
2393
2394 C2V_VMENTRY_NULL(jlongArray, registerNativeMethods, (JNIEnv* env, jobject, jclass mirror))
2395 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2396 requireInHotSpot("registerNativeMethods", JVMCI_CHECK_NULL);
2397 char* sl_path;
2398 void* sl_handle;
2399 JVMCIRuntime* runtime;
2400 {
2401 // Ensure the JVMCI shared library runtime is initialized.
2402 bool jni_enomem_is_fatal = false;
2403 JVMCIEnv __peer_jvmci_env__(thread, false, jni_enomem_is_fatal, __FILE__, __LINE__);
2404 JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2405 if (peerEnv->has_jni_enomem()) {
2406 JVMCI_THROW_MSG_0(OutOfMemoryError, "JNI_ENOMEM creating or attaching to libjvmci");
2407 }
2408 HandleMark hm(THREAD);
2409 runtime = JVMCI::compiler_runtime(thread);
2410 if (peerEnv->has_pending_exception()) {
2411 peerEnv->describe_pending_exception(tty);
2412 }
2413 sl_handle = JVMCI::get_shared_library(sl_path, false);
2414 if (sl_handle == nullptr) {
2415 JVMCI_THROW_MSG_0(InternalError, err_msg("Error initializing JVMCI runtime %d", runtime->id()));
2416 }
2417 }
2418
2419 if (mirror == nullptr) {
2420 JVMCI_THROW_0(NullPointerException);
2421 }
2422 Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
2423 if (klass == nullptr || !klass->is_instance_klass()) {
2424 JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type");
2425 }
2426
2427 InstanceKlass* iklass = InstanceKlass::cast(klass);
2428 for (int i = 0; i < iklass->methods()->length(); i++) {
2429 methodHandle method(THREAD, iklass->methods()->at(i));
2430 if (method->is_native()) {
2431
2432 // Compute argument size
2433 int args_size = 1 // JNIEnv
2434 + (method->is_static() ? 1 : 0) // class for static methods
2435 + method->size_of_parameters(); // actual parameters
2436
2437 // 1) Try JNI short style
2438 stringStream st;
2439 char* pure_name = NativeLookup::pure_jni_name(method);
2440 guarantee(pure_name != nullptr, "Illegal native method name encountered");
2441 os::print_jni_name_prefix_on(&st, args_size);
2442 st.print_raw(pure_name);
2443 os::print_jni_name_suffix_on(&st, args_size);
2444 char* jni_name = st.as_string();
2445
2446 address entry = (address) os::dll_lookup(sl_handle, jni_name);
2447 if (entry == nullptr) {
2448 // 2) Try JNI long style
2449 st.reset();
2450 char* long_name = NativeLookup::long_jni_name(method);
2451 guarantee(long_name != nullptr, "Illegal native method name encountered");
2452 os::print_jni_name_prefix_on(&st, args_size);
2453 st.print_raw(pure_name);
2454 st.print_raw(long_name);
2455 os::print_jni_name_suffix_on(&st, args_size);
2456 char* jni_long_name = st.as_string();
2457 entry = (address) os::dll_lookup(sl_handle, jni_long_name);
2458 if (entry == nullptr) {
2459 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [neither %s nor %s exist in %s]",
2460 method->name_and_sig_as_C_string(),
2461 jni_name, jni_long_name, sl_path));
2462 }
2463 }
2464
2465 if (method->has_native_function() && entry != method->native_function()) {
2466 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [cannot re-link from " PTR_FORMAT " to " PTR_FORMAT "]",
2467 method->name_and_sig_as_C_string(), p2i(method->native_function()), p2i(entry)));
2468 }
2469 method->set_native_function(entry, Method::native_bind_event_is_interesting);
2470 log_debug(jni, resolve)("[Dynamic-linking native method %s.%s ... JNI] @ " PTR_FORMAT,
2471 method->method_holder()->external_name(),
2472 method->name()->as_C_string(),
2473 p2i((void*) entry));
2474 }
2475 }
2476
2477 typeArrayOop info_oop = oopFactory::new_longArray(4, CHECK_0);
2478 jlongArray info = (jlongArray) JNIHandles::make_local(THREAD, info_oop);
2479 runtime->init_JavaVM_info(info, JVMCI_CHECK_0);
2480 return info;
2481 }
2482
2483 C2V_VMENTRY_PREFIX(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject c2vm))
2484 if (thread == nullptr || thread->libjvmci_runtime() == nullptr) {
2485 // Called from unattached JVMCI shared library thread
2486 return false;
2487 }
2488 if (thread->jni_environment() == env) {
2489 C2V_BLOCK(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject))
2490 JVMCITraceMark jtm("isCurrentThreadAttached");
2491 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2492 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2493 if (runtime == nullptr || !runtime->has_shared_library_javavm()) {
2494 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in isCurrentThreadAttached");
2495 }
2496 JNIEnv* peerEnv;
2497 return runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) == JNI_OK;
2498 }
2499 return true;
2500 C2V_END
2501
2502 C2V_VMENTRY_PREFIX(jlong, getCurrentJavaThread, (JNIEnv* env, jobject c2vm))
2503 if (thread == nullptr) {
2504 // Called from unattached JVMCI shared library thread
2505 return 0L;
2506 }
2507 return (jlong) p2i(thread);
2508 C2V_END
2509
2510 // Attaches a thread started in a JVMCI shared library to a JavaThread and JVMCI runtime.
2511 static void attachSharedLibraryThread(JNIEnv* env, jbyteArray name, jboolean as_daemon) {
2512 JavaVM* javaVM = nullptr;
2513 jint res = env->GetJavaVM(&javaVM);
2514 if (res != JNI_OK) {
2515 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Error getting shared library JavaVM from shared library JNIEnv: %d", res));
2516 }
2517 extern struct JavaVM_ main_vm;
2518 JNIEnv* hotspotEnv;
2519
2520 int name_len = env->GetArrayLength(name);
2521 char name_buf[64]; // Cannot use Resource heap as it requires a current thread
2522 int to_copy = MIN2(name_len, (int) sizeof(name_buf) - 1);
2523 env->GetByteArrayRegion(name, 0, to_copy, (jbyte*) name_buf);
2524 name_buf[to_copy] = '\0';
2525 JavaVMAttachArgs attach_args;
2526 attach_args.version = JNI_VERSION_1_2;
2527 attach_args.name = name_buf;
2528 attach_args.group = nullptr;
2529 res = as_daemon ? main_vm.AttachCurrentThreadAsDaemon((void**)&hotspotEnv, &attach_args) :
2530 main_vm.AttachCurrentThread((void**)&hotspotEnv, &attach_args);
2531 if (res != JNI_OK) {
2532 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Trying to attach thread returned %d", res));
2533 }
2534 JavaThread* thread = get_current_thread(false);
2535 const char* attach_error;
2536 {
2537 // Transition to VM
2538 JVMCI_VM_ENTRY_MARK
2539 attach_error = JVMCIRuntime::attach_shared_library_thread(thread, javaVM);
2540 // Transition back to Native
2541 }
2542 if (attach_error != nullptr) {
2543 JNI_THROW("attachCurrentThread", InternalError, attach_error);
2544 }
2545 }
2546
2547 C2V_VMENTRY_PREFIX(jboolean, attachCurrentThread, (JNIEnv* env, jobject c2vm, jbyteArray name, jboolean as_daemon, jlongArray javaVM_info))
2548 if (thread == nullptr) {
2549 attachSharedLibraryThread(env, name, as_daemon);
2550 return true;
2551 }
2552 if (thread->jni_environment() == env) {
2553 // Called from HotSpot
2554 C2V_BLOCK(jboolean, attachCurrentThread, (JNIEnv* env, jobject, jboolean))
2555 JVMCITraceMark jtm("attachCurrentThread");
2556 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2557
2558 JVMCIRuntime* runtime = JVMCI::compiler_runtime(thread);
2559 JNIEnv* peerJNIEnv;
2560 if (runtime->has_shared_library_javavm()) {
2561 if (runtime->GetEnv(thread, (void**)&peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2562 // Already attached
2563 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0);
2564 return false;
2565 }
2566 }
2567
2568 {
2569 // Ensure the JVMCI shared library runtime is initialized.
2570 bool jni_enomem_is_fatal = false;
2571 JVMCIEnv __peer_jvmci_env__(thread, false, jni_enomem_is_fatal, __FILE__, __LINE__);
2572 JVMCIEnv* peerJVMCIEnv = &__peer_jvmci_env__;
2573 if (peerJVMCIEnv->has_jni_enomem()) {
2574 JVMCI_THROW_MSG_0(OutOfMemoryError, "JNI_ENOMEM creating or attaching to libjvmci");
2575 }
2576
2577 HandleMark hm(thread);
2578 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(peerJVMCIEnv);
2579 if (peerJVMCIEnv->has_pending_exception()) {
2580 peerJVMCIEnv->describe_pending_exception(tty);
2581 }
2582 char* sl_path;
2583 if (JVMCI::get_shared_library(sl_path, false) == nullptr) {
2584 JVMCI_THROW_MSG_0(InternalError, "Error initializing JVMCI runtime");
2585 }
2586 }
2587
2588 JavaVMAttachArgs attach_args;
2589 attach_args.version = JNI_VERSION_1_2;
2590 attach_args.name = const_cast<char*>(thread->name());
2591 attach_args.group = nullptr;
2592 if (runtime->GetEnv(thread, (void**) &peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2593 return false;
2594 }
2595 jint res = as_daemon ? runtime->AttachCurrentThreadAsDaemon(thread, (void**) &peerJNIEnv, &attach_args) :
2596 runtime->AttachCurrentThread(thread, (void**) &peerJNIEnv, &attach_args);
2597
2598 if (res == JNI_OK) {
2599 guarantee(peerJNIEnv != nullptr, "must be");
2600 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0);
2601 JVMCI_event_1("attached to JavaVM[%d] for JVMCI runtime %d", runtime->get_shared_library_javavm_id(), runtime->id());
2602 return true;
2603 }
2604 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, attach_args.name));
2605 }
2606 // Called from JVMCI shared library
2607 return false;
2608 C2V_END
2609
2610 C2V_VMENTRY_PREFIX(jboolean, detachCurrentThread, (JNIEnv* env, jobject c2vm, jboolean release))
2611 if (thread == nullptr) {
2612 // Called from unattached JVMCI shared library thread
2613 JNI_THROW_("detachCurrentThread", IllegalStateException, "Cannot detach non-attached thread", false);
2614 }
2615 if (thread->jni_environment() == env) {
2616 // Called from HotSpot
2617 C2V_BLOCK(void, detachCurrentThread, (JNIEnv* env, jobject))
2618 JVMCITraceMark jtm("detachCurrentThread");
2619 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2620 requireInHotSpot("detachCurrentThread", JVMCI_CHECK_0);
2621 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2622 if (runtime == nullptr || !runtime->has_shared_library_javavm()) {
2623 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in detachCurrentThread");
2624 }
2625 JNIEnv* peerEnv;
2626
2627 if (runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) != JNI_OK) {
2628 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("Cannot detach non-attached thread: %s", thread->name()));
2629 }
2630 jint res = runtime->DetachCurrentThread(thread);
2631 if (res != JNI_OK) {
2632 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, thread->name()));
2633 }
2634 JVMCI_event_1("detached from JavaVM[%d] for JVMCI runtime %d",
2635 runtime->get_shared_library_javavm_id(), runtime->id());
2636 if (release) {
2637 return runtime->detach_thread(thread, "user thread detach");
2638 }
2639 } else {
2640 // Called from attached JVMCI shared library thread
2641 if (release) {
2642 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread cannot release JVMCI shared library JavaVM", false);
2643 }
2644 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2645 if (runtime == nullptr) {
2646 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread should have a JVMCI runtime", false);
2647 }
2648 {
2649 // Transition to VM
2650 C2V_BLOCK(jboolean, detachCurrentThread, (JNIEnv* env, jobject))
2651 // Cannot destroy shared library JavaVM as we're about to return to it.
2652 runtime->detach_thread(thread, "shared library thread detach", false);
2653 JVMCI_event_1("detaching JVMCI shared library thread from HotSpot JavaVM");
2654 // Transition back to Native
2655 }
2656 extern struct JavaVM_ main_vm;
2657 jint res = main_vm.DetachCurrentThread();
2658 if (res != JNI_OK) {
2659 JNI_THROW_("detachCurrentThread", InternalError, "Cannot detach non-attached thread", false);
2660 }
2661 }
2662 return false;
2663 C2V_END
2664
2665 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle, jboolean callPostTranslation))
2666 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2667 if (obj_handle == nullptr) {
2668 return 0L;
2669 }
2670 bool jni_enomem_is_fatal = false;
2671 JVMCIEnv __peer_jvmci_env__(thread, !JVMCIENV->is_hotspot(), jni_enomem_is_fatal, __FILE__, __LINE__);
2672 JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2673 JVMCIEnv* thisEnv = JVMCIENV;
2674 if (peerEnv->has_jni_enomem()) {
2675 JVMCI_THROW_MSG_0(OutOfMemoryError, "JNI_ENOMEM creating or attaching to libjvmci");
2676 }
2677
2678 JVMCIObject obj = thisEnv->wrap(obj_handle);
2679 JVMCIObject result;
2680 if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) {
2681 methodHandle method(THREAD, thisEnv->asMethod(obj));
2682 result = peerEnv->get_jvmci_method(method, JVMCI_CHECK_0);
2683 } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) {
2684 Klass* klass = thisEnv->asKlass(obj);
2685 JVMCIKlassHandle klass_handle(THREAD);
2686 klass_handle = klass;
2687 result = peerEnv->get_jvmci_type(klass_handle, JVMCI_CHECK_0);
2688 } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) {
2689 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0);
2690 result = peerEnv->get_jvmci_primitive_type(type);
2691 } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) ||
2692 thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) {
2693 Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0);
2694 result = peerEnv->get_object_constant(constant());
2695 } else if (thisEnv->isa_HotSpotNmethod(obj)) {
2696 if (peerEnv->is_hotspot()) {
2697 nmethod* nm = JVMCIENV->get_nmethod(obj);
2698 if (nm != nullptr) {
2699 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2700 if (data != nullptr) {
2701 // Only the mirror in the HotSpot heap is accessible
2702 // through JVMCINMethodData
2703 oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true);
2704 if (nmethod_mirror != nullptr) {
2705 result = HotSpotJVMCI::wrap(nmethod_mirror);
2706 }
2707 }
2708 }
2709 }
2710
2711 if (result.is_null()) {
2712 JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj);
2713 methodHandle mh(THREAD, thisEnv->asMethod(methodObject));
2714 jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj);
2715 jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj);
2716 JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj);
2717 const char* cstring = name_string.is_null() ? nullptr : thisEnv->as_utf8_string(name_string);
2718 // Create a new HotSpotNmethod instance in the peer runtime
2719 result = peerEnv->new_HotSpotNmethod(mh, cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0);
2720 nmethod* nm = JVMCIENV->get_nmethod(obj);
2721 if (result.is_null()) {
2722 // exception occurred (e.g. OOME) creating a new HotSpotNmethod
2723 } else if (nm == nullptr) {
2724 // nmethod must have been unloaded
2725 } else {
2726 // Link the new HotSpotNmethod to the nmethod
2727 peerEnv->initialize_installed_code(result, nm, JVMCI_CHECK_0);
2728 // Only HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime.
2729 if (peerEnv->is_hotspot()) {
2730 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2731 if (data == nullptr) {
2732 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot set HotSpotNmethod mirror for default nmethod");
2733 }
2734 if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != nullptr) {
2735 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod");
2736 }
2737 oop nmethod_mirror = HotSpotJVMCI::resolve(result);
2738 data->set_nmethod_mirror(nm, nmethod_mirror);
2739 }
2740 }
2741 }
2742 } else {
2743 JVMCI_THROW_MSG_0(IllegalArgumentException,
2744 err_msg("Cannot translate object of type: %s", thisEnv->klass_name(obj)));
2745 }
2746 if (callPostTranslation) {
2747 peerEnv->call_HotSpotJVMCIRuntime_postTranslation(result, JVMCI_CHECK_0);
2748 }
2749 // Propagate any exception that occurred while creating the translated object
2750 if (peerEnv->transfer_pending_exception(thread, thisEnv)) {
2751 return 0L;
2752 }
2753 return (jlong) peerEnv->make_global(result).as_jobject();
2754 }
2755
2756 C2V_VMENTRY_NULL(jobject, unhand, (JNIEnv* env, jobject, jlong obj_handle))
2757 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2758 if (obj_handle == 0L) {
2759 return nullptr;
2760 }
2761 jobject global_handle = (jobject) obj_handle;
2762 JVMCIObject global_handle_obj = JVMCIENV->wrap(global_handle);
2763 jobject result = JVMCIENV->make_local(global_handle_obj).as_jobject();
2764
2765 JVMCIENV->destroy_global(global_handle_obj);
2766 return result;
2767 }
2768
2769 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle))
2770 JVMCIObject code = JVMCIENV->wrap(code_handle);
2771 // Execute this operation for the side effect of updating the InstalledCode state
2772 JVMCIENV->get_nmethod(code);
2773 }
2774
2775 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2776 JVMCIObject code = JVMCIENV->wrap(code_handle);
2777 CodeBlob* cb = JVMCIENV->get_code_blob(code);
2778 if (cb == nullptr) {
2779 return nullptr;
2780 }
2781 // Make a resource copy of code before the allocation causes a safepoint
2782 int code_size = cb->code_size();
2783 jbyte* code_bytes = NEW_RESOURCE_ARRAY(jbyte, code_size);
2784 memcpy(code_bytes, (jbyte*) cb->code_begin(), code_size);
2785
2786 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2787 JVMCIENV->copy_bytes_from(code_bytes, result, 0, code_size);
2788 return JVMCIENV->get_jbyteArray(result);
2789 }
2790
2791 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
2792 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2793 methodHandle m(THREAD, UNPACK_PAIR(Method, method));
2794 oop executable;
2795 if (m->is_initializer()) {
2796 if (m->is_static_initializer()) {
2797 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2798 "Cannot create java.lang.reflect.Method for class initializer");
2799 }
2800 executable = Reflection::new_constructor(m, CHECK_NULL);
2801 } else {
2802 executable = Reflection::new_method(m, false, CHECK_NULL);
2803 }
2804 return JNIHandles::make_local(THREAD, executable);
2805 }
2806
2807 static InstanceKlass* check_field(Klass* klass, jint index, JVMCI_TRAPS) {
2808 if (!klass->is_instance_klass()) {
2809 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2810 err_msg("Expected non-primitive type, got %s", klass->external_name()));
2811 }
2812 InstanceKlass* iklass = InstanceKlass::cast(klass);
2813 if (index < 0 || index > iklass->total_fields_count()) {
2814 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2815 err_msg("Field index %d out of bounds for %s", index, klass->external_name()));
2816 }
2817 return iklass;
2818 }
2819
2820 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index))
2821 requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL);
2822 Klass* klass = UNPACK_PAIR(Klass, klass);
2823 InstanceKlass* iklass = check_field(klass, index, JVMCIENV);
2824 fieldDescriptor fd(iklass, index);
2825 oop reflected = Reflection::new_field(&fd, CHECK_NULL);
2826 return JNIHandles::make_local(THREAD, reflected);
2827 }
2828
2829 static jbyteArray get_encoded_annotation_data(InstanceKlass* holder, AnnotationArray* annotations_array, bool for_class,
2830 jint filter_length, jlong filter_klass_pointers,
2831 JavaThread* THREAD, JVMCIEnv* JVMCIENV) {
2832 // Get a ConstantPool object for annotation parsing
2833 Handle jcp = reflect_ConstantPool::create(CHECK_NULL);
2834 reflect_ConstantPool::set_cp(jcp(), holder->constants());
2835
2836 // load VMSupport
2837 Symbol* klass = vmSymbols::jdk_internal_vm_VMSupport();
2838 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK_NULL);
2839
2840 InstanceKlass* vm_support = InstanceKlass::cast(k);
2841 if (vm_support->should_be_initialized()) {
2842 vm_support->initialize(CHECK_NULL);
2843 }
2844
2845 typeArrayOop annotations_oop = Annotations::make_java_array(annotations_array, CHECK_NULL);
2846 typeArrayHandle annotations = typeArrayHandle(THREAD, annotations_oop);
2847
2848 InstanceKlass** filter = filter_length == 1 ?
2849 (InstanceKlass**) &filter_klass_pointers:
2850 (InstanceKlass**) filter_klass_pointers;
2851 objArrayOop filter_oop = oopFactory::new_objArray(vmClasses::Class_klass(), filter_length, CHECK_NULL);
2852 objArrayHandle filter_classes(THREAD, filter_oop);
2853 for (int i = 0; i < filter_length; i++) {
2854 filter_classes->obj_at_put(i, filter[i]->java_mirror());
2855 }
2856
2857 // invoke VMSupport.encodeAnnotations
2858 JavaValue result(T_OBJECT);
2859 JavaCallArguments args;
2860 args.push_oop(annotations);
2861 args.push_oop(Handle(THREAD, holder->java_mirror()));
2862 args.push_oop(jcp);
2863 args.push_int(for_class);
2864 args.push_oop(filter_classes);
2865 Symbol* signature = vmSymbols::encodeAnnotations_signature();
2866 JavaCalls::call_static(&result,
2867 vm_support,
2868 vmSymbols::encodeAnnotations_name(),
2869 signature,
2870 &args,
2871 CHECK_NULL);
2872
2873 oop res = result.get_oop();
2874 if (JVMCIENV->is_hotspot()) {
2875 return (jbyteArray) JNIHandles::make_local(THREAD, res);
2876 }
2877
2878 typeArrayOop ba = typeArrayOop(res);
2879 int ba_len = ba->length();
2880 jbyte* ba_buf = NEW_RESOURCE_ARRAY_IN_THREAD_RETURN_NULL(THREAD, jbyte, ba_len);
2881 if (ba_buf == nullptr) {
2882 JVMCI_THROW_MSG_NULL(InternalError,
2883 err_msg("could not allocate %d bytes", ba_len));
2884
2885 }
2886 memcpy(ba_buf, ba->byte_at_addr(0), ba_len);
2887 JVMCIPrimitiveArray ba_dest = JVMCIENV->new_byteArray(ba_len, JVMCI_CHECK_NULL);
2888 JVMCIENV->copy_bytes_from(ba_buf, ba_dest, 0, ba_len);
2889 return JVMCIENV->get_jbyteArray(ba_dest);
2890 }
2891
2892 C2V_VMENTRY_NULL(jbyteArray, getEncodedClassAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass),
2893 jobject filter, jint filter_length, jlong filter_klass_pointers))
2894 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass));
2895 return get_encoded_annotation_data(holder, holder->class_annotations(), true, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2896 C2V_END
2897
2898 C2V_VMENTRY_NULL(jbyteArray, getEncodedExecutableAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(method),
2899 jobject filter, jint filter_length, jlong filter_klass_pointers))
2900 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
2901 return get_encoded_annotation_data(method->method_holder(), method->annotations(), false, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2902 C2V_END
2903
2904 C2V_VMENTRY_NULL(jbyteArray, getEncodedFieldAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index,
2905 jobject filter, jint filter_length, jlong filter_klass_pointers))
2906 InstanceKlass* holder = check_field(InstanceKlass::cast(UNPACK_PAIR(Klass, klass)), index, JVMCIENV);
2907 fieldDescriptor fd(holder, index);
2908 return get_encoded_annotation_data(holder, fd.annotations(), false, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2909 C2V_END
2910
2911 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current))
2912 FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address);
2913 int result_length = 0;
2914 for (FailedSpeculation* fs = head; fs != nullptr; fs = fs->next()) {
2915 result_length++;
2916 }
2917 int current_length = 0;
2918 JVMCIObjectArray current_array = nullptr;
2919 if (current != nullptr) {
2920 current_array = JVMCIENV->wrap(current);
2921 current_length = JVMCIENV->get_length(current_array);
2922 if (current_length == result_length) {
2923 // No new failures
2924 return current;
2925 }
2926 }
2927 JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL);
2928 int result_index = 0;
2929 for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) {
2930 assert(fs != nullptr, "npe");
2931 JVMCIPrimitiveArray entry;
2932 if (result_index < current_length) {
2933 entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index);
2934 } else {
2935 entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL);
2936 JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len());
2937 }
2938 JVMCIENV->put_object_at(result, result_index++, entry);
2939 }
2940 return JVMCIENV->get_jobjectArray(result);
2941 }
2942
2943 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
2944 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
2945 MethodData* method_data = method->method_data();
2946 if (method_data == nullptr) {
2947 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
2948 method_data = MethodData::allocate(loader_data, method, CHECK_0);
2949 method->set_method_data(method_data);
2950 }
2951 return (jlong) method_data->get_failed_speculations_address();
2952 }
2953
2954 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address))
2955 FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address);
2956 }
2957
2958 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj))
2959 JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj);
2960 int speculation_len = JVMCIENV->get_length(speculation_handle);
2961 char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len);
2962 JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len);
2963 return FailedSpeculation::add_failed_speculation(nullptr, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len);
2964 }
2965
2966 C2V_VMENTRY(void, callSystemExit, (JNIEnv* env, jobject, jint status))
2967 JavaValue result(T_VOID);
2968 JavaCallArguments jargs(1);
2969 jargs.push_int(status);
2970 JavaCalls::call_static(&result,
2971 vmClasses::System_klass(),
2972 vmSymbols::exit_method_name(),
2973 vmSymbols::int_void_signature(),
2974 &jargs,
2975 CHECK);
2976 }
2977
2978 C2V_VMENTRY_0(jlong, ticksNow, (JNIEnv* env, jobject))
2979 return CompilerEvent::ticksNow();
2980 }
2981
2982 C2V_VMENTRY_0(jint, registerCompilerPhase, (JNIEnv* env, jobject, jstring jphase_name))
2983 #if INCLUDE_JFR
2984 JVMCIObject phase_name = JVMCIENV->wrap(jphase_name);
2985 const char *name = JVMCIENV->as_utf8_string(phase_name);
2986 return CompilerEvent::PhaseEvent::get_phase_id(name, true, true, true);
2987 #else
2988 return -1;
2989 #endif // !INCLUDE_JFR
2990 }
2991
2992 C2V_VMENTRY(void, notifyCompilerPhaseEvent, (JNIEnv* env, jobject, jlong startTime, jint phase, jint compileId, jint level))
2993 EventCompilerPhase event;
2994 if (event.should_commit()) {
2995 CompilerEvent::PhaseEvent::post(event, startTime, phase, compileId, level);
2996 }
2997 }
2998
2999 C2V_VMENTRY(void, notifyCompilerInliningEvent, (JNIEnv* env, jobject, jint compileId, ARGUMENT_PAIR(caller), ARGUMENT_PAIR(callee), jboolean succeeded, jstring jmessage, jint bci))
3000 EventCompilerInlining event;
3001 if (event.should_commit()) {
3002 Method* caller = UNPACK_PAIR(Method, caller);
3003 Method* callee = UNPACK_PAIR(Method, callee);
3004 JVMCIObject message = JVMCIENV->wrap(jmessage);
3005 CompilerEvent::InlineEvent::post(event, compileId, caller, callee, succeeded, JVMCIENV->as_utf8_string(message), bci);
3006 }
3007 }
3008
3009 C2V_VMENTRY(void, setThreadLocalObject, (JNIEnv* env, jobject, jint id, jobject value))
3010 requireInHotSpot("setThreadLocalObject", JVMCI_CHECK);
3011 if (id == 0) {
3012 thread->set_jvmci_reserved_oop0(JNIHandles::resolve(value));
3013 return;
3014 }
3015 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
3016 err_msg("%d is not a valid thread local id", id));
3017 }
3018
3019 C2V_VMENTRY_NULL(jobject, getThreadLocalObject, (JNIEnv* env, jobject, jint id))
3020 requireInHotSpot("getThreadLocalObject", JVMCI_CHECK_NULL);
3021 if (id == 0) {
3022 return JNIHandles::make_local(thread->get_jvmci_reserved_oop0());
3023 }
3024 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
3025 err_msg("%d is not a valid thread local id", id));
3026 }
3027
3028 C2V_VMENTRY(void, setThreadLocalLong, (JNIEnv* env, jobject, jint id, jlong value))
3029 requireInHotSpot("setThreadLocalLong", JVMCI_CHECK);
3030 if (id == 0) {
3031 thread->set_jvmci_reserved0(value);
3032 } else if (id == 1) {
3033 thread->set_jvmci_reserved1(value);
3034 } else {
3035 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
3036 err_msg("%d is not a valid thread local id", id));
3037 }
3038 }
3039
3040 C2V_VMENTRY_0(jlong, getThreadLocalLong, (JNIEnv* env, jobject, jint id))
3041 requireInHotSpot("getThreadLocalLong", JVMCI_CHECK_0);
3042 if (id == 0) {
3043 return thread->get_jvmci_reserved0();
3044 } else if (id == 1) {
3045 return thread->get_jvmci_reserved1();
3046 } else {
3047 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
3048 err_msg("%d is not a valid thread local id", id));
3049 }
3050 }
3051
3052 #define CC (char*) /*cast a literal from (const char*)*/
3053 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
3054
3055 #define STRING "Ljava/lang/String;"
3056 #define OBJECT "Ljava/lang/Object;"
3057 #define CLASS "Ljava/lang/Class;"
3058 #define OBJECTCONSTANT "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;"
3059 #define EXECUTABLE "Ljava/lang/reflect/Executable;"
3060 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;"
3061 #define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;"
3062 #define BYTECODE_FRAME "Ljdk/vm/ci/code/BytecodeFrame;"
3063 #define JAVACONSTANT "Ljdk/vm/ci/meta/JavaConstant;"
3064 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;"
3065 #define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
3066 #define FIELDINFO "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl$FieldInfo;"
3067 #define HS_RESOLVED_TYPE "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;"
3068 #define HS_INSTALLED_CODE "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;"
3069 #define HS_NMETHOD "Ljdk/vm/ci/hotspot/HotSpotNmethod;"
3070 #define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
3071 #define HS_CONFIG "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
3072 #define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
3073 #define HS_SPECULATION_LOG "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
3074 #define REFLECTION_EXECUTABLE "Ljava/lang/reflect/Executable;"
3075 #define REFLECTION_FIELD "Ljava/lang/reflect/Field;"
3076
3077 // Types wrapping VM pointers. The ...2 macro is for a pair: (wrapper, pointer)
3078 #define HS_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
3079 #define HS_METHOD2 "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;J"
3080 #define HS_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
3081 #define HS_KLASS2 "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;J"
3082 #define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
3083 #define HS_CONSTANT_POOL2 "Ljdk/vm/ci/hotspot/HotSpotConstantPool;J"
3084
3085 JNINativeMethod CompilerToVM::methods[] = {
3086 {CC "getBytecode", CC "(" HS_METHOD2 ")[B", FN_PTR(getBytecode)},
3087 {CC "getExceptionTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getExceptionTableStart)},
3088 {CC "getExceptionTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getExceptionTableLength)},
3089 {CC "findUniqueConcreteMethod", CC "(" HS_KLASS2 HS_METHOD2 ")" HS_METHOD, FN_PTR(findUniqueConcreteMethod)},
3090 {CC "getImplementor", CC "(" HS_KLASS2 ")" HS_KLASS, FN_PTR(getImplementor)},
3091 {CC "getStackTraceElement", CC "(" HS_METHOD2 "I)" STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)},
3092 {CC "methodIsIgnoredBySecurityStackWalk", CC "(" HS_METHOD2 ")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)},
3093 {CC "setNotInlinableOrCompilable", CC "(" HS_METHOD2 ")V", FN_PTR(setNotInlinableOrCompilable)},
3094 {CC "isCompilable", CC "(" HS_METHOD2 ")Z", FN_PTR(isCompilable)},
3095 {CC "hasNeverInlineDirective", CC "(" HS_METHOD2 ")Z", FN_PTR(hasNeverInlineDirective)},
3096 {CC "shouldInlineMethod", CC "(" HS_METHOD2 ")Z", FN_PTR(shouldInlineMethod)},
3097 {CC "lookupType", CC "(" STRING HS_KLASS2 "Z)" HS_RESOLVED_TYPE, FN_PTR(lookupType)},
3098 {CC "lookupJClass", CC "(J)" HS_RESOLVED_TYPE, FN_PTR(lookupJClass)},
3099 {CC "getArrayType", CC "(C" HS_KLASS2 ")" HS_KLASS, FN_PTR(getArrayType)},
3100 {CC "lookupClass", CC "(" CLASS ")" HS_RESOLVED_TYPE, FN_PTR(lookupClass)},
3101 {CC "lookupNameInPool", CC "(" HS_CONSTANT_POOL2 "II)" STRING, FN_PTR(lookupNameInPool)},
3102 {CC "lookupNameAndTypeRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(lookupNameAndTypeRefIndexInPool)},
3103 {CC "lookupSignatureInPool", CC "(" HS_CONSTANT_POOL2 "II)" STRING, FN_PTR(lookupSignatureInPool)},
3104 {CC "lookupKlassRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(lookupKlassRefIndexInPool)},
3105 {CC "lookupKlassInPool", CC "(" HS_CONSTANT_POOL2 "I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)},
3106 {CC "lookupAppendixInPool", CC "(" HS_CONSTANT_POOL2 "I)" OBJECTCONSTANT, FN_PTR(lookupAppendixInPool)},
3107 {CC "lookupMethodInPool", CC "(" HS_CONSTANT_POOL2 "IB" HS_METHOD2 ")" HS_METHOD, FN_PTR(lookupMethodInPool)},
3108 {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(constantPoolRemapInstructionOperandFromCache)},
3109 {CC "resolveBootstrapMethod", CC "(" HS_CONSTANT_POOL2 "I)[" OBJECT, FN_PTR(resolveBootstrapMethod)},
3110 {CC "getUncachedStringInPool", CC "(" HS_CONSTANT_POOL2 "I)" JAVACONSTANT, FN_PTR(getUncachedStringInPool)},
3111 {CC "resolvePossiblyCachedConstantInPool", CC "(" HS_CONSTANT_POOL2 "I)" JAVACONSTANT, FN_PTR(resolvePossiblyCachedConstantInPool)},
3112 {CC "resolveTypeInPool", CC "(" HS_CONSTANT_POOL2 "I)" HS_KLASS, FN_PTR(resolveTypeInPool)},
3113 {CC "resolveFieldInPool", CC "(" HS_CONSTANT_POOL2 "I" HS_METHOD2 "B[I)" HS_KLASS, FN_PTR(resolveFieldInPool)},
3114 {CC "resolveInvokeDynamicInPool", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(resolveInvokeDynamicInPool)},
3115 {CC "resolveInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "I)V", FN_PTR(resolveInvokeHandleInPool)},
3116 {CC "isResolvedInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(isResolvedInvokeHandleInPool)},
3117 {CC "resolveMethod", CC "(" HS_KLASS2 HS_METHOD2 HS_KLASS2 ")" HS_METHOD, FN_PTR(resolveMethod)},
3118 {CC "getSignaturePolymorphicHolders", CC "()[" STRING, FN_PTR(getSignaturePolymorphicHolders)},
3119 {CC "getVtableIndexForInterfaceMethod", CC "(" HS_KLASS2 HS_METHOD2 ")I", FN_PTR(getVtableIndexForInterfaceMethod)},
3120 {CC "getClassInitializer", CC "(" HS_KLASS2 ")" HS_METHOD, FN_PTR(getClassInitializer)},
3121 {CC "hasFinalizableSubclass", CC "(" HS_KLASS2 ")Z", FN_PTR(hasFinalizableSubclass)},
3122 {CC "getMaxCallTargetOffset", CC "(J)J", FN_PTR(getMaxCallTargetOffset)},
3123 {CC "asResolvedJavaMethod", CC "(" EXECUTABLE ")" HS_METHOD, FN_PTR(asResolvedJavaMethod)},
3124 {CC "getResolvedJavaMethod", CC "(" OBJECTCONSTANT "J)" HS_METHOD, FN_PTR(getResolvedJavaMethod)},
3125 {CC "getConstantPool", CC "(" OBJECT "JZ)" HS_CONSTANT_POOL, FN_PTR(getConstantPool)},
3126 {CC "getResolvedJavaType0", CC "(Ljava/lang/Object;JZ)" HS_KLASS, FN_PTR(getResolvedJavaType0)},
3127 {CC "readConfiguration", CC "()[" OBJECT, FN_PTR(readConfiguration)},
3128 {CC "installCode0", CC "(JJZ" HS_COMPILED_CODE "[" OBJECT INSTALLED_CODE "J[B)I", FN_PTR(installCode0)},
3129 {CC "getInstallCodeFlags", CC "()I", FN_PTR(getInstallCodeFlags)},
3130 {CC "resetCompilationStatistics", CC "()V", FN_PTR(resetCompilationStatistics)},
3131 {CC "disassembleCodeBlob", CC "(" INSTALLED_CODE ")" STRING, FN_PTR(disassembleCodeBlob)},
3132 {CC "executeHotSpotNmethod", CC "([" OBJECT HS_NMETHOD ")" OBJECT, FN_PTR(executeHotSpotNmethod)},
3133 {CC "getLineNumberTable", CC "(" HS_METHOD2 ")[J", FN_PTR(getLineNumberTable)},
3134 {CC "getLocalVariableTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getLocalVariableTableStart)},
3135 {CC "getLocalVariableTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getLocalVariableTableLength)},
3136 {CC "reprofile", CC "(" HS_METHOD2 ")V", FN_PTR(reprofile)},
3137 {CC "invalidateHotSpotNmethod", CC "(" HS_NMETHOD "Z)V", FN_PTR(invalidateHotSpotNmethod)},
3138 {CC "collectCounters", CC "()[J", FN_PTR(collectCounters)},
3139 {CC "getCountersSize", CC "()I", FN_PTR(getCountersSize)},
3140 {CC "setCountersSize", CC "(I)Z", FN_PTR(setCountersSize)},
3141 {CC "allocateCompileId", CC "(" HS_METHOD2 "I)I", FN_PTR(allocateCompileId)},
3142 {CC "isMature", CC "(J)Z", FN_PTR(isMature)},
3143 {CC "hasCompiledCodeForOSR", CC "(" HS_METHOD2 "II)Z", FN_PTR(hasCompiledCodeForOSR)},
3144 {CC "getSymbol", CC "(J)" STRING, FN_PTR(getSymbol)},
3145 {CC "getSignatureName", CC "(J)" STRING, FN_PTR(getSignatureName)},
3146 {CC "iterateFrames", CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT, FN_PTR(iterateFrames)},
3147 {CC "materializeVirtualObjects", CC "(" HS_STACK_FRAME_REF "Z)V", FN_PTR(materializeVirtualObjects)},
3148 {CC "shouldDebugNonSafepoints", CC "()Z", FN_PTR(shouldDebugNonSafepoints)},
3149 {CC "writeDebugOutput", CC "(JIZ)V", FN_PTR(writeDebugOutput)},
3150 {CC "flushDebugOutput", CC "()V", FN_PTR(flushDebugOutput)},
3151 {CC "methodDataProfileDataSize", CC "(JI)I", FN_PTR(methodDataProfileDataSize)},
3152 {CC "methodDataExceptionSeen", CC "(JI)I", FN_PTR(methodDataExceptionSeen)},
3153 {CC "interpreterFrameSize", CC "(" BYTECODE_FRAME ")I", FN_PTR(interpreterFrameSize)},
3154 {CC "compileToBytecode", CC "(" OBJECTCONSTANT ")V", FN_PTR(compileToBytecode)},
3155 {CC "getFlagValue", CC "(" STRING ")" OBJECT, FN_PTR(getFlagValue)},
3156 {CC "getInterfaces", CC "(" HS_KLASS2 ")[" HS_KLASS, FN_PTR(getInterfaces)},
3157 {CC "getComponentType", CC "(" HS_KLASS2 ")" HS_RESOLVED_TYPE, FN_PTR(getComponentType)},
3158 {CC "ensureInitialized", CC "(" HS_KLASS2 ")V", FN_PTR(ensureInitialized)},
3159 {CC "ensureLinked", CC "(" HS_KLASS2 ")V", FN_PTR(ensureLinked)},
3160 {CC "getIdentityHashCode", CC "(" OBJECTCONSTANT ")I", FN_PTR(getIdentityHashCode)},
3161 {CC "isInternedString", CC "(" OBJECTCONSTANT ")Z", FN_PTR(isInternedString)},
3162 {CC "unboxPrimitive", CC "(" OBJECTCONSTANT ")" OBJECT, FN_PTR(unboxPrimitive)},
3163 {CC "boxPrimitive", CC "(" OBJECT ")" OBJECTCONSTANT, FN_PTR(boxPrimitive)},
3164 {CC "getDeclaredConstructors", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredConstructors)},
3165 {CC "getDeclaredMethods", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredMethods)},
3166 {CC "getDeclaredFieldsInfo", CC "(" HS_KLASS2 ")[" FIELDINFO, FN_PTR(getDeclaredFieldsInfo)},
3167 {CC "readStaticFieldValue", CC "(" HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readStaticFieldValue)},
3168 {CC "readFieldValue", CC "(" OBJECTCONSTANT HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readFieldValue)},
3169 {CC "isInstance", CC "(" HS_KLASS2 OBJECTCONSTANT ")Z", FN_PTR(isInstance)},
3170 {CC "isAssignableFrom", CC "(" HS_KLASS2 HS_KLASS2 ")Z", FN_PTR(isAssignableFrom)},
3171 {CC "isTrustedForIntrinsics", CC "(" HS_KLASS2 ")Z", FN_PTR(isTrustedForIntrinsics)},
3172 {CC "asJavaType", CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE, FN_PTR(asJavaType)},
3173 {CC "asString", CC "(" OBJECTCONSTANT ")" STRING, FN_PTR(asString)},
3174 {CC "equals", CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z", FN_PTR(equals)},
3175 {CC "getJavaMirror", CC "(" HS_KLASS2 ")" OBJECTCONSTANT, FN_PTR(getJavaMirror)},
3176 {CC "getArrayLength", CC "(" OBJECTCONSTANT ")I", FN_PTR(getArrayLength)},
3177 {CC "readArrayElement", CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;", FN_PTR(readArrayElement)},
3178 {CC "arrayBaseOffset", CC "(C)I", FN_PTR(arrayBaseOffset)},
3179 {CC "arrayIndexScale", CC "(C)I", FN_PTR(arrayIndexScale)},
3180 {CC "releaseClearedOopHandles", CC "()V", FN_PTR(releaseClearedOopHandles)},
3181 {CC "registerNativeMethods", CC "(" CLASS ")[J", FN_PTR(registerNativeMethods)},
3182 {CC "isCurrentThreadAttached", CC "()Z", FN_PTR(isCurrentThreadAttached)},
3183 {CC "getCurrentJavaThread", CC "()J", FN_PTR(getCurrentJavaThread)},
3184 {CC "attachCurrentThread", CC "([BZ[J)Z", FN_PTR(attachCurrentThread)},
3185 {CC "detachCurrentThread", CC "(Z)Z", FN_PTR(detachCurrentThread)},
3186 {CC "translate", CC "(" OBJECT "Z)J", FN_PTR(translate)},
3187 {CC "unhand", CC "(J)" OBJECT, FN_PTR(unhand)},
3188 {CC "updateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(updateHotSpotNmethod)},
3189 {CC "getCode", CC "(" HS_INSTALLED_CODE ")[B", FN_PTR(getCode)},
3190 {CC "asReflectionExecutable", CC "(" HS_METHOD2 ")" REFLECTION_EXECUTABLE, FN_PTR(asReflectionExecutable)},
3191 {CC "asReflectionField", CC "(" HS_KLASS2 "I)" REFLECTION_FIELD, FN_PTR(asReflectionField)},
3192 {CC "getEncodedClassAnnotationData", CC "(" HS_KLASS2 OBJECT "IJ)[B", FN_PTR(getEncodedClassAnnotationData)},
3193 {CC "getEncodedExecutableAnnotationData", CC "(" HS_METHOD2 OBJECT "IJ)[B", FN_PTR(getEncodedExecutableAnnotationData)},
3194 {CC "getEncodedFieldAnnotationData", CC "(" HS_KLASS2 "I" OBJECT "IJ)[B", FN_PTR(getEncodedFieldAnnotationData)},
3195 {CC "getFailedSpeculations", CC "(J[[B)[[B", FN_PTR(getFailedSpeculations)},
3196 {CC "getFailedSpeculationsAddress", CC "(" HS_METHOD2 ")J", FN_PTR(getFailedSpeculationsAddress)},
3197 {CC "releaseFailedSpeculations", CC "(J)V", FN_PTR(releaseFailedSpeculations)},
3198 {CC "addFailedSpeculation", CC "(J[B)Z", FN_PTR(addFailedSpeculation)},
3199 {CC "callSystemExit", CC "(I)V", FN_PTR(callSystemExit)},
3200 {CC "ticksNow", CC "()J", FN_PTR(ticksNow)},
3201 {CC "getThreadLocalObject", CC "(I)" OBJECT, FN_PTR(getThreadLocalObject)},
3202 {CC "setThreadLocalObject", CC "(I" OBJECT ")V", FN_PTR(setThreadLocalObject)},
3203 {CC "getThreadLocalLong", CC "(I)J", FN_PTR(getThreadLocalLong)},
3204 {CC "setThreadLocalLong", CC "(IJ)V", FN_PTR(setThreadLocalLong)},
3205 {CC "registerCompilerPhase", CC "(" STRING ")I", FN_PTR(registerCompilerPhase)},
3206 {CC "notifyCompilerPhaseEvent", CC "(JIII)V", FN_PTR(notifyCompilerPhaseEvent)},
3207 {CC "notifyCompilerInliningEvent", CC "(I" HS_METHOD2 HS_METHOD2 "ZLjava/lang/String;I)V", FN_PTR(notifyCompilerInliningEvent)},
3208 };
3209
3210 int CompilerToVM::methods_count() {
3211 return sizeof(methods) / sizeof(JNINativeMethod);
3212 }