1 /*
2 * Copyright (c) 2011, 2023, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #include "precompiled.hpp"
25 #include "classfile/classLoaderData.inline.hpp"
26 #include "classfile/javaClasses.inline.hpp"
27 #include "classfile/stringTable.hpp"
28 #include "classfile/symbolTable.hpp"
29 #include "classfile/systemDictionary.hpp"
30 #include "classfile/vmClasses.hpp"
31 #include "code/scopeDesc.hpp"
32 #include "compiler/compileBroker.hpp"
33 #include "compiler/compilerEvent.hpp"
34 #include "compiler/disassembler.hpp"
35 #include "compiler/oopMap.hpp"
36 #include "interpreter/bytecodeStream.hpp"
37 #include "interpreter/linkResolver.hpp"
38 #include "jfr/jfrEvents.hpp"
39 #include "jvmci/jvmciCodeInstaller.hpp"
40 #include "jvmci/jvmciCompilerToVM.hpp"
41 #include "jvmci/jvmciRuntime.hpp"
42 #include "logging/log.hpp"
43 #include "logging/logTag.hpp"
44 #include "memory/oopFactory.hpp"
45 #include "memory/universe.hpp"
46 #include "oops/constantPool.inline.hpp"
47 #include "oops/instanceKlass.inline.hpp"
48 #include "oops/instanceMirrorKlass.hpp"
49 #include "oops/method.inline.hpp"
50 #include "oops/objArrayKlass.inline.hpp"
51 #include "oops/typeArrayOop.inline.hpp"
52 #include "prims/jvmtiExport.hpp"
53 #include "prims/methodHandles.hpp"
54 #include "prims/nativeLookup.hpp"
55 #include "runtime/arguments.hpp"
56 #include "runtime/atomic.hpp"
57 #include "runtime/deoptimization.hpp"
58 #include "runtime/fieldDescriptor.inline.hpp"
59 #include "runtime/frame.inline.hpp"
60 #include "runtime/globals_extension.hpp"
61 #include "runtime/interfaceSupport.inline.hpp"
62 #include "runtime/jniHandles.inline.hpp"
63 #include "runtime/reflectionUtils.hpp"
64 #include "runtime/stackFrameStream.inline.hpp"
65 #include "runtime/timerTrace.hpp"
66 #include "runtime/vframe.inline.hpp"
67 #include "runtime/vframe_hp.hpp"
68 #if INCLUDE_JFR
69 #include "jfr/jfr.hpp"
70 #endif
71
72 JVMCIKlassHandle::JVMCIKlassHandle(Thread* thread, Klass* klass) {
73 _thread = thread;
74 _klass = klass;
75 if (klass != nullptr) {
76 _holder = Handle(_thread, klass->klass_holder());
77 }
78 }
79
80 JVMCIKlassHandle& JVMCIKlassHandle::operator=(Klass* klass) {
81 _klass = klass;
82 if (klass != nullptr) {
83 _holder = Handle(_thread, klass->klass_holder());
84 }
85 return *this;
86 }
87
88 static void requireInHotSpot(const char* caller, JVMCI_TRAPS) {
89 if (!JVMCIENV->is_hotspot()) {
90 JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot call %s from JVMCI shared library", caller));
91 }
92 }
93
94 class JVMCITraceMark : public StackObj {
95 const char* _msg;
96 public:
97 JVMCITraceMark(const char* msg) {
98 _msg = msg;
99 JVMCI_event_2("Enter %s", _msg);
100 }
101 ~JVMCITraceMark() {
102 JVMCI_event_2(" Exit %s", _msg);
103 }
104 };
105
106 class JavaArgumentUnboxer : public SignatureIterator {
107 protected:
108 JavaCallArguments* _jca;
109 arrayOop _args;
110 int _index;
111
112 Handle next_arg(BasicType expectedType);
113
114 public:
115 JavaArgumentUnboxer(Symbol* signature,
116 JavaCallArguments* jca,
117 arrayOop args,
118 bool is_static)
119 : SignatureIterator(signature)
120 {
121 this->_return_type = T_ILLEGAL;
122 _jca = jca;
123 _index = 0;
124 _args = args;
125 if (!is_static) {
126 _jca->push_oop(next_arg(T_OBJECT));
127 }
128 do_parameters_on(this);
129 assert(_index == args->length(), "arg count mismatch with signature");
130 }
131
132 private:
133 friend class SignatureIterator; // so do_parameters_on can call do_type
134 void do_type(BasicType type) {
135 if (is_reference_type(type)) {
136 _jca->push_oop(next_arg(T_OBJECT));
137 return;
138 }
139 Handle arg = next_arg(type);
140 int box_offset = java_lang_boxing_object::value_offset(type);
141 switch (type) {
142 case T_BOOLEAN: _jca->push_int(arg->bool_field(box_offset)); break;
143 case T_CHAR: _jca->push_int(arg->char_field(box_offset)); break;
144 case T_SHORT: _jca->push_int(arg->short_field(box_offset)); break;
145 case T_BYTE: _jca->push_int(arg->byte_field(box_offset)); break;
146 case T_INT: _jca->push_int(arg->int_field(box_offset)); break;
147 case T_LONG: _jca->push_long(arg->long_field(box_offset)); break;
148 case T_FLOAT: _jca->push_float(arg->float_field(box_offset)); break;
149 case T_DOUBLE: _jca->push_double(arg->double_field(box_offset)); break;
150 default: ShouldNotReachHere();
151 }
152 }
153 };
154
155 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) {
156 assert(_index < _args->length(), "out of bounds");
157 oop arg=((objArrayOop) (_args))->obj_at(_index++);
158 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
159 return Handle(Thread::current(), arg);
160 }
161
162 // Bring the JVMCI compiler thread into the VM state.
163 #define JVMCI_VM_ENTRY_MARK \
164 MACOS_AARCH64_ONLY(ThreadWXEnable __wx(WXWrite, thread)); \
165 ThreadInVMfromNative __tiv(thread); \
166 HandleMarkCleaner __hm(thread); \
167 JavaThread* THREAD = thread; \
168 debug_only(VMNativeEntryWrapper __vew;)
169
170 // Native method block that transitions current thread to '_thread_in_vm'.
171 #define C2V_BLOCK(result_type, name, signature) \
172 JVMCI_VM_ENTRY_MARK; \
173 ResourceMark rm; \
174 JNI_JVMCIENV(JVMCI::compilation_tick(thread), env);
175
176 static JavaThread* get_current_thread(bool allow_null=true) {
177 Thread* thread = Thread::current_or_null_safe();
178 if (thread == nullptr) {
179 assert(allow_null, "npe");
180 return nullptr;
181 }
182 return JavaThread::cast(thread);
183 }
184
185 // Entry to native method implementation that transitions
186 // current thread to '_thread_in_vm'.
187 #define C2V_VMENTRY(result_type, name, signature) \
188 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
189 JavaThread* thread = get_current_thread(); \
190 if (thread == nullptr) { \
191 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
192 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
193 return; \
194 } \
195 C2V_BLOCK(result_type, name, signature) \
196 JVMCITraceMark jtm("CompilerToVM::" #name);
197
198 #define C2V_VMENTRY_(result_type, name, signature, result) \
199 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
200 JavaThread* thread = get_current_thread(); \
201 if (thread == nullptr) { \
202 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
203 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
204 return result; \
205 } \
206 C2V_BLOCK(result_type, name, signature) \
207 JVMCITraceMark jtm("CompilerToVM::" #name);
208
209 #define C2V_VMENTRY_NULL(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, nullptr)
210 #define C2V_VMENTRY_0(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, 0)
211
212 // Entry to native method implementation that does not transition
213 // current thread to '_thread_in_vm'.
214 #define C2V_VMENTRY_PREFIX(result_type, name, signature) \
215 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
216 JavaThread* thread = get_current_thread();
217
218 #define C2V_END }
219
220 #define JNI_THROW(caller, name, msg) do { \
221 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
222 if (__throw_res != JNI_OK) { \
223 tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \
224 } \
225 return; \
226 } while (0);
227
228 #define JNI_THROW_(caller, name, msg, result) do { \
229 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
230 if (__throw_res != JNI_OK) { \
231 tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \
232 } \
233 return result; \
234 } while (0)
235
236 jobjectArray readConfiguration0(JNIEnv *env, JVMCI_TRAPS);
237
238 C2V_VMENTRY_NULL(jobjectArray, readConfiguration, (JNIEnv* env))
239 jobjectArray config = readConfiguration0(env, JVMCI_CHECK_NULL);
240 return config;
241 }
242
243 C2V_VMENTRY_NULL(jobject, getFlagValue, (JNIEnv* env, jobject c2vm, jobject name_handle))
244 #define RETURN_BOXED_LONG(value) jvalue p; p.j = (jlong) (value); JVMCIObject box = JVMCIENV->create_box(T_LONG, &p, JVMCI_CHECK_NULL); return box.as_jobject();
245 #define RETURN_BOXED_DOUBLE(value) jvalue p; p.d = (jdouble) (value); JVMCIObject box = JVMCIENV->create_box(T_DOUBLE, &p, JVMCI_CHECK_NULL); return box.as_jobject();
246 JVMCIObject name = JVMCIENV->wrap(name_handle);
247 if (name.is_null()) {
248 JVMCI_THROW_NULL(NullPointerException);
249 }
250 const char* cstring = JVMCIENV->as_utf8_string(name);
251 const JVMFlag* flag = JVMFlag::find_declared_flag(cstring);
252 if (flag == nullptr) {
253 return c2vm;
254 }
255 if (flag->is_bool()) {
256 jvalue prim;
257 prim.z = flag->get_bool();
258 JVMCIObject box = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL);
259 return JVMCIENV->get_jobject(box);
260 } else if (flag->is_ccstr()) {
261 JVMCIObject value = JVMCIENV->create_string(flag->get_ccstr(), JVMCI_CHECK_NULL);
262 return JVMCIENV->get_jobject(value);
263 } else if (flag->is_intx()) {
264 RETURN_BOXED_LONG(flag->get_intx());
265 } else if (flag->is_int()) {
266 RETURN_BOXED_LONG(flag->get_int());
267 } else if (flag->is_uint()) {
268 RETURN_BOXED_LONG(flag->get_uint());
269 } else if (flag->is_uint64_t()) {
270 RETURN_BOXED_LONG(flag->get_uint64_t());
271 } else if (flag->is_size_t()) {
272 RETURN_BOXED_LONG(flag->get_size_t());
273 } else if (flag->is_uintx()) {
274 RETURN_BOXED_LONG(flag->get_uintx());
275 } else if (flag->is_double()) {
276 RETURN_BOXED_DOUBLE(flag->get_double());
277 } else {
278 JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->name(), flag->type_string());
279 }
280 #undef RETURN_BOXED_LONG
281 #undef RETURN_BOXED_DOUBLE
282 C2V_END
283
284 // Macros for argument pairs representing a wrapper object and its wrapped VM pointer
285 #define ARGUMENT_PAIR(name) jobject name ## _obj, jlong name ## _pointer
286 #define UNPACK_PAIR(type, name) ((type*) name ## _pointer)
287
288 C2V_VMENTRY_NULL(jbyteArray, getBytecode, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
289 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
290
291 int code_size = method->code_size();
292 jbyte* reconstituted_code = NEW_RESOURCE_ARRAY(jbyte, code_size);
293
294 guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
295 // iterate over all bytecodes and replace non-Java bytecodes
296
297 for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
298 Bytecodes::Code code = s.code();
299 Bytecodes::Code raw_code = s.raw_code();
300 int bci = s.bci();
301 int len = s.instruction_size();
302
303 // Restore original byte code.
304 reconstituted_code[bci] = (jbyte) (s.is_wide()? Bytecodes::_wide : code);
305 if (len > 1) {
306 memcpy(reconstituted_code + (bci + 1), s.bcp()+1, len-1);
307 }
308
309 if (len > 1) {
310 // Restore the big-endian constant pool indexes.
311 // Cf. Rewriter::scan_method
312 switch (code) {
313 case Bytecodes::_getstatic:
314 case Bytecodes::_putstatic:
315 case Bytecodes::_getfield:
316 case Bytecodes::_putfield:
317 case Bytecodes::_invokevirtual:
318 case Bytecodes::_invokespecial:
319 case Bytecodes::_invokestatic:
320 case Bytecodes::_invokeinterface:
321 case Bytecodes::_invokehandle: {
322 int cp_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
323 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
324 break;
325 }
326
327 case Bytecodes::_invokedynamic: {
328 int cp_index = Bytes::get_native_u4((address) reconstituted_code + (bci + 1));
329 Bytes::put_Java_u4((address) reconstituted_code + (bci + 1), (u4) cp_index);
330 break;
331 }
332
333 default:
334 break;
335 }
336
337 // Not all ldc byte code are rewritten.
338 switch (raw_code) {
339 case Bytecodes::_fast_aldc: {
340 int cpc_index = reconstituted_code[bci + 1] & 0xff;
341 int cp_index = method->constants()->object_to_cp_index(cpc_index);
342 assert(cp_index < method->constants()->length(), "sanity check");
343 reconstituted_code[bci + 1] = (jbyte) cp_index;
344 break;
345 }
346
347 case Bytecodes::_fast_aldc_w: {
348 int cpc_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
349 int cp_index = method->constants()->object_to_cp_index(cpc_index);
350 assert(cp_index < method->constants()->length(), "sanity check");
351 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
352 break;
353 }
354
355 default:
356 break;
357 }
358 }
359 }
360
361 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
362 JVMCIENV->copy_bytes_from(reconstituted_code, result, 0, code_size);
363 return JVMCIENV->get_jbyteArray(result);
364 C2V_END
365
366 C2V_VMENTRY_0(jint, getExceptionTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
367 Method* method = UNPACK_PAIR(Method, method);
368 return method->exception_table_length();
369 C2V_END
370
371 C2V_VMENTRY_0(jlong, getExceptionTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
372 Method* method = UNPACK_PAIR(Method, method);
373 if (method->exception_table_length() == 0) {
374 return 0L;
375 }
376 return (jlong) (address) method->exception_table_start();
377 C2V_END
378
379 C2V_VMENTRY_NULL(jobject, asResolvedJavaMethod, (JNIEnv* env, jobject, jobject executable_handle))
380 requireInHotSpot("asResolvedJavaMethod", JVMCI_CHECK_NULL);
381 oop executable = JNIHandles::resolve(executable_handle);
382 oop mirror = nullptr;
383 int slot = 0;
384
385 if (executable->klass() == vmClasses::reflect_Constructor_klass()) {
386 mirror = java_lang_reflect_Constructor::clazz(executable);
387 slot = java_lang_reflect_Constructor::slot(executable);
388 } else {
389 assert(executable->klass() == vmClasses::reflect_Method_klass(), "wrong type");
390 mirror = java_lang_reflect_Method::clazz(executable);
391 slot = java_lang_reflect_Method::slot(executable);
392 }
393 Klass* holder = java_lang_Class::as_Klass(mirror);
394 methodHandle method (THREAD, InstanceKlass::cast(holder)->method_with_idnum(slot));
395 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
396 return JVMCIENV->get_jobject(result);
397 }
398
399 C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset))
400 Method* method = nullptr;
401 JVMCIObject base_object = JVMCIENV->wrap(base);
402 if (base_object.is_null()) {
403 method = *((Method**)(offset));
404 } else {
405 Handle obj = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
406 if (obj->is_a(vmClasses::ResolvedMethodName_klass())) {
407 method = (Method*) (intptr_t) obj->long_field(offset);
408 } else {
409 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", obj->klass()->external_name()));
410 }
411 }
412 if (method == nullptr) {
413 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
414 }
415 assert (method->is_method(), "invalid read");
416 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, method), JVMCI_CHECK_NULL);
417 return JVMCIENV->get_jobject(result);
418 }
419
420 C2V_VMENTRY_NULL(jobject, getConstantPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass_or_method), jboolean is_klass))
421 ConstantPool* cp = nullptr;
422 if (UNPACK_PAIR(address, klass_or_method) == 0) {
423 JVMCI_THROW_NULL(NullPointerException);
424 }
425 if (!is_klass) {
426 cp = (UNPACK_PAIR(Method, klass_or_method))->constMethod()->constants();
427 } else {
428 cp = InstanceKlass::cast(UNPACK_PAIR(Klass, klass_or_method))->constants();
429 }
430
431 JVMCIObject result = JVMCIENV->get_jvmci_constant_pool(constantPoolHandle(THREAD, cp), JVMCI_CHECK_NULL);
432 return JVMCIENV->get_jobject(result);
433 }
434
435 C2V_VMENTRY_NULL(jobject, getResolvedJavaType0, (JNIEnv* env, jobject, jobject base, jlong offset, jboolean compressed))
436 JVMCIObject base_object = JVMCIENV->wrap(base);
437 if (base_object.is_null()) {
438 JVMCI_THROW_MSG_NULL(NullPointerException, "base object is null");
439 }
440
441 const char* base_desc = nullptr;
442 JVMCIKlassHandle klass(THREAD);
443 if (offset == oopDesc::klass_offset_in_bytes()) {
444 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
445 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
446 klass = base_oop->klass();
447 } else {
448 goto unexpected;
449 }
450 } else if (!compressed) {
451 if (JVMCIENV->isa_HotSpotConstantPool(base_object)) {
452 ConstantPool* cp = JVMCIENV->asConstantPool(base_object);
453 if (offset == in_bytes(ConstantPool::pool_holder_offset())) {
454 klass = cp->pool_holder();
455 } else {
456 base_desc = FormatBufferResource("[constant pool for %s]", cp->pool_holder()->signature_name());
457 goto unexpected;
458 }
459 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
460 Klass* base_klass = JVMCIENV->asKlass(base_object);
461 if (offset == in_bytes(Klass::subklass_offset())) {
462 klass = base_klass->subklass();
463 } else if (offset == in_bytes(Klass::super_offset())) {
464 klass = base_klass->super();
465 } else if (offset == in_bytes(Klass::next_sibling_offset())) {
466 klass = base_klass->next_sibling();
467 } else if (offset == in_bytes(ObjArrayKlass::element_klass_offset()) && base_klass->is_objArray_klass()) {
468 klass = ObjArrayKlass::cast(base_klass)->element_klass();
469 } else if (offset >= in_bytes(Klass::primary_supers_offset()) &&
470 offset < in_bytes(Klass::primary_supers_offset()) + (int) (sizeof(Klass*) * Klass::primary_super_limit()) &&
471 offset % sizeof(Klass*) == 0) {
472 // Offset is within the primary supers array
473 int index = (int) ((offset - in_bytes(Klass::primary_supers_offset())) / sizeof(Klass*));
474 klass = base_klass->primary_super_of_depth(index);
475 } else {
476 base_desc = FormatBufferResource("[%s]", base_klass->signature_name());
477 goto unexpected;
478 }
479 } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
480 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
481 if (base_oop->is_a(vmClasses::Class_klass())) {
482 if (offset == java_lang_Class::klass_offset()) {
483 klass = java_lang_Class::as_Klass(base_oop());
484 } else if (offset == java_lang_Class::array_klass_offset()) {
485 klass = java_lang_Class::array_klass_acquire(base_oop());
486 } else {
487 base_desc = FormatBufferResource("[Class=%s]", java_lang_Class::as_Klass(base_oop())->signature_name());
488 goto unexpected;
489 }
490 } else {
491 if (!base_oop.is_null()) {
492 base_desc = FormatBufferResource("[%s]", base_oop()->klass()->signature_name());
493 }
494 goto unexpected;
495 }
496 } else if (JVMCIENV->isa_HotSpotMethodData(base_object)) {
497 jlong base_address = (intptr_t) JVMCIENV->asMethodData(base_object);
498 klass = *((Klass**) (intptr_t) (base_address + offset));
499 if (klass == nullptr || !klass->is_loader_alive()) {
500 // Klasses in methodData might be concurrently unloading so return null in that case.
501 return nullptr;
502 }
503 } else {
504 goto unexpected;
505 }
506 } else {
507 goto unexpected;
508 }
509
510 {
511 if (klass == nullptr) {
512 return nullptr;
513 }
514 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
515 return JVMCIENV->get_jobject(result);
516 }
517
518 unexpected:
519 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
520 err_msg("Unexpected arguments: %s%s " JLONG_FORMAT " %s",
521 JVMCIENV->klass_name(base_object), base_desc == nullptr ? "" : base_desc,
522 offset, compressed ? "true" : "false"));
523 }
524
525 C2V_VMENTRY_NULL(jobject, findUniqueConcreteMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method)))
526 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
527 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass));
528 if (holder->is_interface()) {
529 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Interface %s should be handled in Java code", holder->external_name()));
530 }
531 if (method->can_be_statically_bound()) {
532 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Effectively static method %s.%s should be handled in Java code", method->method_holder()->external_name(), method->external_name()));
533 }
534
535 methodHandle ucm;
536 {
537 MutexLocker locker(Compile_lock);
538 ucm = methodHandle(THREAD, Dependencies::find_unique_concrete_method(holder, method()));
539 }
540 JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL);
541 return JVMCIENV->get_jobject(result);
542 C2V_END
543
544 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
545 Klass* klass = UNPACK_PAIR(Klass, klass);
546 if (!klass->is_interface()) {
547 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
548 err_msg("Expected interface type, got %s", klass->external_name()));
549 }
550 InstanceKlass* iklass = InstanceKlass::cast(klass);
551 JVMCIKlassHandle handle(THREAD, iklass->implementor());
552 JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
553 return JVMCIENV->get_jobject(implementor);
554 C2V_END
555
556 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
557 Method* method = UNPACK_PAIR(Method, method);
558 return method->is_ignored_by_security_stack_walk();
559 C2V_END
560
561 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
562 Method* method = UNPACK_PAIR(Method, method);
563 // Skip redefined methods
564 if (method->is_old()) {
565 return false;
566 }
567 return !method->is_not_compilable(CompLevel_full_optimization);
568 C2V_END
569
570 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
571 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
572 return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
573 C2V_END
574
575 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
576 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
577 return CompilerOracle::should_inline(method) || method->force_inline();
578 C2V_END
579
580 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, ARGUMENT_PAIR(accessing_klass), jint accessing_klass_loader, jboolean resolve))
581 JVMCIObject name = JVMCIENV->wrap(jname);
582 const char* str = JVMCIENV->as_utf8_string(name);
583 TempNewSymbol class_name = SymbolTable::new_symbol(str);
584
585 if (class_name->utf8_length() <= 1) {
586 JVMCI_THROW_MSG_0(InternalError, err_msg("Primitive type %s should be handled in Java code", str));
587 }
588
589 #ifdef ASSERT
590 const char* val = Arguments::PropertyList_get_value(Arguments::system_properties(), "test.jvmci.lookupTypeException");
591 if (val != nullptr) {
592 if (strstr(val, "<trace>") != nullptr) {
593 tty->print_cr("CompilerToVM.lookupType: %s", str);
594 } else if (strstr(val, str) != nullptr) {
595 THROW_MSG_0(vmSymbols::java_lang_Exception(),
596 err_msg("lookupTypeException: %s", str));
597 }
598 }
599 #endif
600
601 JVMCIKlassHandle resolved_klass(THREAD);
602 Klass* accessing_klass = UNPACK_PAIR(Klass, accessing_klass);
603 Handle class_loader;
604 Handle protection_domain;
605 if (accessing_klass != nullptr) {
606 class_loader = Handle(THREAD, accessing_klass->class_loader());
607 protection_domain = Handle(THREAD, accessing_klass->protection_domain());
608 } else {
609 switch (accessing_klass_loader) {
610 case 0: break; // class_loader is already null, the boot loader
611 case 1: class_loader = Handle(THREAD, SystemDictionary::java_platform_loader()); break;
612 case 2: class_loader = Handle(THREAD, SystemDictionary::java_system_loader()); break;
613 default:
614 JVMCI_THROW_MSG_0(InternalError, err_msg("Illegal class loader value: %d", accessing_klass_loader));
615 }
616 JVMCIENV->runtime()->initialize(JVMCI_CHECK_NULL);
617 }
618
619 if (resolve) {
620 resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_NULL);
621 if (resolved_klass == nullptr) {
622 JVMCI_THROW_MSG_NULL(NoClassDefFoundError, str);
623 }
624 } else {
625 if (Signature::has_envelope(class_name)) {
626 // This is a name from a signature. Strip off the trimmings.
627 // Call recursive to keep scope of strippedsym.
628 TempNewSymbol strippedsym = Signature::strip_envelope(class_name);
629 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym,
630 class_loader,
631 protection_domain);
632 } else if (Signature::is_array(class_name)) {
633 SignatureStream ss(class_name, false);
634 int ndim = ss.skip_array_prefix();
635 if (ss.type() == T_OBJECT) {
636 Symbol* strippedsym = ss.as_symbol();
637 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym,
638 class_loader,
639 protection_domain);
640 if (!resolved_klass.is_null()) {
641 resolved_klass = resolved_klass->array_klass(ndim, CHECK_NULL);
642 }
643 } else {
644 resolved_klass = TypeArrayKlass::cast(Universe::typeArrayKlassObj(ss.type()))->array_klass(ndim, CHECK_NULL);
645 }
646 } else {
647 resolved_klass = SystemDictionary::find_instance_klass(THREAD, class_name,
648 class_loader,
649 protection_domain);
650 }
651 }
652 JVMCIObject result = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
653 return JVMCIENV->get_jobject(result);
654 C2V_END
655
656 C2V_VMENTRY_NULL(jobject, getArrayType, (JNIEnv* env, jobject, jchar type_char, ARGUMENT_PAIR(klass)))
657 JVMCIKlassHandle array_klass(THREAD);
658 Klass* klass = UNPACK_PAIR(Klass, klass);
659 if (klass == nullptr) {
660 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
661 if (type == T_VOID) {
662 return nullptr;
663 }
664 array_klass = Universe::typeArrayKlassObj(type);
665 if (array_klass == nullptr) {
666 JVMCI_THROW_MSG_NULL(InternalError, err_msg("No array klass for primitive type %s", type2name(type)));
667 }
668 } else {
669 array_klass = klass->array_klass(CHECK_NULL);
670 }
671 JVMCIObject result = JVMCIENV->get_jvmci_type(array_klass, JVMCI_CHECK_NULL);
672 return JVMCIENV->get_jobject(result);
673 C2V_END
674
675 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror))
676 requireInHotSpot("lookupClass", JVMCI_CHECK_NULL);
677 if (mirror == nullptr) {
678 return nullptr;
679 }
680 JVMCIKlassHandle klass(THREAD);
681 klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
682 if (klass == nullptr) {
683 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported");
684 }
685 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
686 return JVMCIENV->get_jobject(result);
687 C2V_END
688
689 C2V_VMENTRY_NULL(jobject, lookupJClass, (JNIEnv* env, jobject, jlong jclass_value))
690 if (jclass_value == 0L) {
691 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass must not be zero");
692 }
693 jclass mirror = reinterpret_cast<jclass>(jclass_value);
694 // Since the jclass_value is passed as a jlong, we perform additional checks to prevent the caller from accidentally
695 // sending a value that is not a JNI handle.
696 if (JNIHandles::handle_type(thread, mirror) == JNIInvalidRefType) {
697 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass is not a valid JNI reference");
698 }
699 oop obj = JNIHandles::resolve(mirror);
700 if (!java_lang_Class::is_instance(obj)) {
701 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass must be a reference to the Class object");
702 }
703 JVMCIKlassHandle klass(THREAD, java_lang_Class::as_Klass(obj));
704 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
705 return JVMCIENV->get_jobject(result);
706 C2V_END
707
708 C2V_VMENTRY_NULL(jobject, getUncachedStringInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
709 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
710 constantTag tag = cp->tag_at(index);
711 if (!tag.is_string()) {
712 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
713 }
714 oop obj = cp->uncached_string_at(index, CHECK_NULL);
715 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
716 C2V_END
717
718 C2V_VMENTRY_NULL(jobject, lookupConstantInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint cp_index, bool resolve))
719 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
720 oop obj;
721 if (!resolve) {
722 bool found_it;
723 obj = cp->find_cached_constant_at(cp_index, found_it, CHECK_NULL);
724 if (!found_it) {
725 return nullptr;
726 }
727 } else {
728 obj = cp->resolve_possibly_cached_constant_at(cp_index, CHECK_NULL);
729 }
730 constantTag tag = cp->tag_at(cp_index);
731 if (tag.is_dynamic_constant()) {
732 if (obj == nullptr) {
733 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
734 }
735 BasicType bt = Signature::basic_type(cp->uncached_signature_ref_at(cp_index));
736 if (!is_reference_type(bt)) {
737 if (!is_java_primitive(bt)) {
738 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
739 }
740
741 // Convert standard box (e.g. java.lang.Integer) to JVMCI box (e.g. jdk.vm.ci.meta.PrimitiveConstant)
742 jvalue value;
743 jlong raw_value;
744 jchar type_char;
745 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
746 assert(bt2 == bt, "");
747 switch (bt2) {
748 case T_LONG: type_char = 'J'; raw_value = value.j; break;
749 case T_DOUBLE: type_char = 'D'; raw_value = value.j; break;
750 case T_FLOAT: type_char = 'F'; raw_value = value.i; break;
751 case T_INT: type_char = 'I'; raw_value = value.i; break;
752 case T_SHORT: type_char = 'S'; raw_value = value.s; break;
753 case T_BYTE: type_char = 'B'; raw_value = value.b; break;
754 case T_CHAR: type_char = 'C'; raw_value = value.c; break;
755 case T_BOOLEAN: type_char = 'Z'; raw_value = value.z; break;
756 default: return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
757 }
758
759 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, raw_value, JVMCI_CHECK_NULL);
760 return JVMCIENV->get_jobject(result);
761 }
762 }
763 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
764 C2V_END
765
766 C2V_VMENTRY_NULL(jobjectArray, resolveBootstrapMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
767 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
768 constantTag tag = cp->tag_at(index);
769 bool is_indy = tag.is_invoke_dynamic();
770 bool is_condy = tag.is_dynamic_constant();
771 if (!(is_condy || is_indy)) {
772 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
773 }
774 // Get the indy entry based on CP index
775 int indy_index = -1;
776 for (int i = 0; i < cp->resolved_indy_entries_length(); i++) {
777 if (cp->resolved_indy_entry_at(i)->constant_pool_index() == index) {
778 indy_index = i;
779 }
780 }
781 // Resolve the bootstrap specifier, its name, type, and static arguments
782 BootstrapInfo bootstrap_specifier(cp, index, indy_index);
783 Handle bsm = bootstrap_specifier.resolve_bsm(CHECK_NULL);
784
785 // call java.lang.invoke.MethodHandle::asFixedArity() -> MethodHandle
786 // to get a DirectMethodHandle from which we can then extract a Method*
787 JavaValue result(T_OBJECT);
788 JavaCalls::call_virtual(&result,
789 bsm,
790 vmClasses::MethodHandle_klass(),
791 vmSymbols::asFixedArity_name(),
792 vmSymbols::asFixedArity_signature(),
793 CHECK_NULL);
794 bsm = Handle(THREAD, result.get_oop());
795
796 // Check assumption about getting a DirectMethodHandle
797 if (!java_lang_invoke_DirectMethodHandle::is_instance(bsm())) {
798 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Unexpected MethodHandle subclass: %s", bsm->klass()->external_name()));
799 }
800 // Create return array describing the bootstrap method invocation (BSMI)
801 JVMCIObjectArray bsmi = JVMCIENV->new_Object_array(4, JVMCI_CHECK_NULL);
802
803 // Extract Method* and wrap it in a ResolvedJavaMethod
804 Handle member = Handle(THREAD, java_lang_invoke_DirectMethodHandle::member(bsm()));
805 JVMCIObject bsmi_method = JVMCIENV->get_jvmci_method(methodHandle(THREAD, java_lang_invoke_MemberName::vmtarget(member())), JVMCI_CHECK_NULL);
806 JVMCIENV->put_object_at(bsmi, 0, bsmi_method);
807
808 JVMCIObject bsmi_name = JVMCIENV->create_string(bootstrap_specifier.name(), JVMCI_CHECK_NULL);
809 JVMCIENV->put_object_at(bsmi, 1, bsmi_name);
810
811 Handle type_arg = bootstrap_specifier.type_arg();
812 JVMCIObject bsmi_type = JVMCIENV->get_object_constant(type_arg());
813 JVMCIENV->put_object_at(bsmi, 2, bsmi_type);
814
815 Handle arg_values = bootstrap_specifier.arg_values();
816 if (arg_values.not_null()) {
817 if (!arg_values->is_array()) {
818 JVMCIENV->put_object_at(bsmi, 3, JVMCIENV->get_object_constant(arg_values()));
819 } else if (arg_values->is_objArray()) {
820 objArrayHandle args_array = objArrayHandle(THREAD, (objArrayOop) arg_values());
821 int len = args_array->length();
822 JVMCIObjectArray arguments = JVMCIENV->new_JavaConstant_array(len, JVMCI_CHECK_NULL);
823 JVMCIENV->put_object_at(bsmi, 3, arguments);
824 for (int i = 0; i < len; i++) {
825 oop x = args_array->obj_at(i);
826 if (x != nullptr) {
827 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_object_constant(x));
828 } else {
829 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_JavaConstant_NULL_POINTER());
830 }
831 }
832 } else if (arg_values->is_typeArray()) {
833 typeArrayHandle bsci = typeArrayHandle(THREAD, (typeArrayOop) arg_values());
834 JVMCIPrimitiveArray arguments = JVMCIENV->new_intArray(bsci->length(), JVMCI_CHECK_NULL);
835 JVMCIENV->put_object_at(bsmi, 3, arguments);
836 for (int i = 0; i < bsci->length(); i++) {
837 JVMCIENV->put_int_at(arguments, i, bsci->int_at(i));
838 }
839 }
840 }
841 return JVMCIENV->get_jobjectArray(bsmi);
842 C2V_END
843
844 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode))
845 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
846 return cp->name_and_type_ref_index_at(index, (Bytecodes::Code)opcode);
847 C2V_END
848
849 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode))
850 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
851 JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which, (Bytecodes::Code)opcode), JVMCI_CHECK_NULL);
852 return JVMCIENV->get_jobject(sym);
853 C2V_END
854
855 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode))
856 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
857 JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which, (Bytecodes::Code)opcode), JVMCI_CHECK_NULL);
858 return JVMCIENV->get_jobject(sym);
859 C2V_END
860
861 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode))
862 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
863 return cp->klass_ref_index_at(index, (Bytecodes::Code)opcode);
864 C2V_END
865
866 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
867 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
868 Klass* klass = cp->klass_at(index, CHECK_NULL);
869 JVMCIKlassHandle resolved_klass(THREAD, klass);
870 if (resolved_klass->is_instance_klass()) {
871 InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL);
872 if (!InstanceKlass::cast(resolved_klass())->is_linked()) {
873 // link_class() should not return here if there is an issue.
874 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name()));
875 }
876 }
877 JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
878 return JVMCIENV->get_jobject(klassObject);
879 C2V_END
880
881 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
882 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
883 Klass* loading_klass = cp->pool_holder();
884 bool is_accessible = false;
885 JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass));
886 Symbol* symbol = nullptr;
887 if (klass.is_null()) {
888 constantTag tag = cp->tag_at(index);
889 if (tag.is_klass()) {
890 // The klass has been inserted into the constant pool
891 // very recently.
892 klass = cp->resolved_klass_at(index);
893 } else if (tag.is_symbol()) {
894 symbol = cp->symbol_at(index);
895 } else {
896 assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag");
897 symbol = cp->klass_name_at(index);
898 }
899 }
900 JVMCIObject result;
901 if (!klass.is_null()) {
902 result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
903 } else {
904 result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL);
905 }
906 return JVMCIENV->get_jobject(result);
907 C2V_END
908
909 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
910 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
911 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
912 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop));
913 C2V_END
914
915 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jbyte opcode, ARGUMENT_PAIR(caller)))
916 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
917 methodHandle caller(THREAD, UNPACK_PAIR(Method, caller));
918 InstanceKlass* pool_holder = cp->pool_holder();
919 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
920 methodHandle method(THREAD, JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder));
921 JFR_ONLY(if (method.not_null()) Jfr::on_resolution(caller(), method(), CHECK_NULL);)
922 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
923 return JVMCIENV->get_jobject(result);
924 C2V_END
925
926 C2V_VMENTRY_0(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
927 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
928 return cp->remap_instruction_operand_from_cache(index);
929 C2V_END
930
931 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, ARGUMENT_PAIR(method), jbyte opcode, jintArray info_handle))
932 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
933 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
934 fieldDescriptor fd;
935 methodHandle mh(THREAD, UNPACK_PAIR(Method, method));
936 LinkInfo link_info(cp, index, mh, code, CHECK_NULL);
937 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_NULL);
938 JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle);
939 if (info.is_null() || JVMCIENV->get_length(info) != 4) {
940 JVMCI_ERROR_NULL("info must not be null and have a length of 4");
941 }
942 JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int());
943 JVMCIENV->put_int_at(info, 1, fd.offset());
944 JVMCIENV->put_int_at(info, 2, fd.index());
945 JVMCIENV->put_int_at(info, 3, fd.field_flags().as_uint());
946 JVMCIKlassHandle handle(THREAD, fd.field_holder());
947 JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
948 return JVMCIENV->get_jobject(field_holder);
949 C2V_END
950
951 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method)))
952 Klass* klass = UNPACK_PAIR(Klass, klass);
953 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
954 InstanceKlass* holder = method->method_holder();
955 if (klass->is_interface()) {
956 JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name()));
957 }
958 if (!holder->is_interface()) {
959 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()));
960 }
961 if (!klass->is_instance_klass()) {
962 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
963 }
964 if (!InstanceKlass::cast(klass)->is_linked()) {
965 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name()));
966 }
967 if (!klass->is_subtype_of(holder)) {
968 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s does not implement interface %s", klass->external_name(), holder->external_name()));
969 }
970 return LinkResolver::vtable_index_of_interface_method(klass, method);
971 C2V_END
972
973 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(receiver), ARGUMENT_PAIR(method), ARGUMENT_PAIR(caller)))
974 Klass* recv_klass = UNPACK_PAIR(Klass, receiver);
975 Klass* caller_klass = UNPACK_PAIR(Klass, caller);
976 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
977
978 Klass* resolved = method->method_holder();
979 Symbol* h_name = method->name();
980 Symbol* h_signature = method->signature();
981
982 if (MethodHandles::is_signature_polymorphic_method(method())) {
983 // Signature polymorphic methods are already resolved, JVMCI just returns null in this case.
984 return nullptr;
985 }
986
987 if (method->name() == vmSymbols::clone_name() &&
988 resolved == vmClasses::Object_klass() &&
989 recv_klass->is_array_klass()) {
990 // Resolution of the clone method on arrays always returns Object.clone even though that method
991 // has protected access. There's some trickery in the access checking to make this all work out
992 // so it's necessary to pass in the array class as the resolved class to properly trigger this.
993 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See
994 // LinkResolver::check_method_accessability for the matching logic.
995 resolved = recv_klass;
996 }
997
998 LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
999 Method* m = nullptr;
1000 // Only do exact lookup if receiver klass has been linked. Otherwise,
1001 // the vtable has not been setup, and the LinkResolver will fail.
1002 if (recv_klass->is_array_klass() ||
1003 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
1004 if (resolved->is_interface()) {
1005 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
1006 } else {
1007 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
1008 }
1009 }
1010
1011 if (m == nullptr) {
1012 // Return null if there was a problem with lookup (uninitialized class, etc.)
1013 return nullptr;
1014 }
1015
1016 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, m), JVMCI_CHECK_NULL);
1017 return JVMCIENV->get_jobject(result);
1018 C2V_END
1019
1020 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1021 Klass* klass = UNPACK_PAIR(Klass, klass);
1022 assert(klass != nullptr, "method must not be called for primitive types");
1023 if (!klass->is_instance_klass()) {
1024 return false;
1025 }
1026 InstanceKlass* iklass = InstanceKlass::cast(klass);
1027 return Dependencies::find_finalizable_subclass(iklass) != nullptr;
1028 C2V_END
1029
1030 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1031 Klass* klass = UNPACK_PAIR(Klass, klass);
1032 if (!klass->is_instance_klass()) {
1033 return nullptr;
1034 }
1035 InstanceKlass* iklass = InstanceKlass::cast(klass);
1036 methodHandle clinit(THREAD, iklass->class_initializer());
1037 JVMCIObject result = JVMCIENV->get_jvmci_method(clinit, JVMCI_CHECK_NULL);
1038 return JVMCIENV->get_jobject(result);
1039 C2V_END
1040
1041 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr))
1042 address target_addr = (address) addr;
1043 if (target_addr != 0x0) {
1044 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
1045 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
1046 return MAX2(ABS(off_low), ABS(off_high));
1047 }
1048 return -1;
1049 C2V_END
1050
1051 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1052 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1053 method->set_is_not_c1_compilable();
1054 method->set_is_not_c2_compilable();
1055 method->set_dont_inline(true);
1056 C2V_END
1057
1058 C2V_VMENTRY_0(jint, getInstallCodeFlags, (JNIEnv *env, jobject))
1059 int flags = 0;
1060 #ifndef PRODUCT
1061 flags |= 0x0001; // VM will install block comments
1062 flags |= 0x0004; // Enable HotSpotJVMCIRuntime.Option.CodeSerializationTypeInfo if not explicitly set
1063 #endif
1064 if (JvmtiExport::can_hotswap_or_post_breakpoint()) {
1065 // VM needs to track method dependencies
1066 flags |= 0x0002;
1067 }
1068 return flags;
1069 C2V_END
1070
1071 C2V_VMENTRY_0(jint, installCode0, (JNIEnv *env, jobject,
1072 jlong compiled_code_buffer,
1073 jlong serialization_ns,
1074 bool with_type_info,
1075 jobject compiled_code,
1076 jobjectArray object_pool,
1077 jobject installed_code,
1078 jlong failed_speculations_address,
1079 jbyteArray speculations_obj))
1080 HandleMark hm(THREAD);
1081 JNIHandleMark jni_hm(thread);
1082
1083 JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
1084 objArrayHandle object_pool_handle(thread, JVMCIENV->is_hotspot() ? (objArrayOop) JNIHandles::resolve(object_pool) : nullptr);
1085
1086 CodeBlob* cb = nullptr;
1087 JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code);
1088 JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj);
1089
1090 int speculations_len = JVMCIENV->get_length(speculations_handle);
1091 char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len);
1092 JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len);
1093
1094 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR);
1095 JVMCICompiler::CodeInstallStats* stats = compiler->code_install_stats(!thread->is_Compiler_thread());
1096 elapsedTimer *timer = stats->timer();
1097 timer->add_nanoseconds(serialization_ns);
1098 TraceTime install_time("installCode", timer);
1099
1100 CodeInstaller installer(JVMCIENV);
1101
1102 JVMCI::CodeInstallResult result = installer.install(compiler,
1103 compiled_code_buffer,
1104 with_type_info,
1105 compiled_code_handle,
1106 object_pool_handle,
1107 cb,
1108 installed_code_handle,
1109 (FailedSpeculation**)(address) failed_speculations_address,
1110 speculations,
1111 speculations_len,
1112 JVMCI_CHECK_0);
1113
1114 if (PrintCodeCacheOnCompilation) {
1115 stringStream s;
1116 // Dump code cache into a buffer before locking the tty,
1117 {
1118 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
1119 CodeCache::print_summary(&s, false);
1120 }
1121 ttyLocker ttyl;
1122 tty->print_raw_cr(s.freeze());
1123 }
1124
1125 if (result != JVMCI::ok) {
1126 assert(cb == nullptr, "should be");
1127 } else {
1128 stats->on_install(cb);
1129 if (installed_code_handle.is_non_null()) {
1130 if (cb->is_nmethod()) {
1131 assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type");
1132 // Clear the link to an old nmethod first
1133 JVMCIObject nmethod_mirror = installed_code_handle;
1134 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, true, JVMCI_CHECK_0);
1135 } else {
1136 assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type");
1137 }
1138 // Initialize the link to the new code blob
1139 JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0);
1140 }
1141 }
1142 return result;
1143 C2V_END
1144
1145 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject))
1146 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK);
1147 CompilerStatistics* stats = compiler->stats();
1148 stats->_standard.reset();
1149 stats->_osr.reset();
1150 C2V_END
1151
1152 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode))
1153 HandleMark hm(THREAD);
1154
1155 if (installedCode == nullptr) {
1156 JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null");
1157 }
1158
1159 JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode);
1160 CodeBlob* cb = JVMCIENV->get_code_blob(installedCodeObject);
1161 if (cb == nullptr) {
1162 return nullptr;
1163 }
1164
1165 // We don't want the stringStream buffer to resize during disassembly as it
1166 // uses scoped resource memory. If a nested function called during disassembly uses
1167 // a ResourceMark and the buffer expands within the scope of the mark,
1168 // the buffer becomes garbage when that scope is exited. Experience shows that
1169 // the disassembled code is typically about 10x the code size so a fixed buffer
1170 // sized to 20x code size plus a fixed amount for header info should be sufficient.
1171 int bufferSize = cb->code_size() * 20 + 1024;
1172 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
1173 stringStream st(buffer, bufferSize);
1174 Disassembler::decode(cb, &st);
1175 if (st.size() <= 0) {
1176 return nullptr;
1177 }
1178
1179 JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL);
1180 return JVMCIENV->get_jobject(result);
1181 C2V_END
1182
1183 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int bci))
1184 HandleMark hm(THREAD);
1185
1186 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1187 JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL);
1188 return JVMCIENV->get_jobject(element);
1189 C2V_END
1190
1191 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod))
1192 // The incoming arguments array would have to contain JavaConstants instead of regular objects
1193 // and the return value would have to be wrapped as a JavaConstant.
1194 requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL);
1195
1196 HandleMark hm(THREAD);
1197
1198 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1199 nmethod* nm = JVMCIENV->get_nmethod(nmethod_mirror);
1200 if (nm == nullptr || !nm->is_in_use()) {
1201 JVMCI_THROW_NULL(InvalidInstalledCodeException);
1202 }
1203 methodHandle mh(THREAD, nm->method());
1204 Symbol* signature = mh->signature();
1205 JavaCallArguments jca(mh->size_of_parameters());
1206
1207 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
1208 JavaValue result(jap.return_type());
1209 jca.set_alternative_target(Handle(THREAD, JNIHandles::resolve(nmethod_mirror.as_jobject())));
1210 JavaCalls::call(&result, mh, &jca, CHECK_NULL);
1211
1212 if (jap.return_type() == T_VOID) {
1213 return nullptr;
1214 } else if (is_reference_type(jap.return_type())) {
1215 return JNIHandles::make_local(THREAD, result.get_oop());
1216 } else {
1217 jvalue *value = (jvalue *) result.get_value_addr();
1218 // Narrow the value down if required (Important on big endian machines)
1219 switch (jap.return_type()) {
1220 case T_BOOLEAN:
1221 value->z = (jboolean) value->i;
1222 break;
1223 case T_BYTE:
1224 value->b = (jbyte) value->i;
1225 break;
1226 case T_CHAR:
1227 value->c = (jchar) value->i;
1228 break;
1229 case T_SHORT:
1230 value->s = (jshort) value->i;
1231 break;
1232 default:
1233 break;
1234 }
1235 JVMCIObject o = JVMCIENV->create_box(jap.return_type(), value, JVMCI_CHECK_NULL);
1236 return JVMCIENV->get_jobject(o);
1237 }
1238 C2V_END
1239
1240 C2V_VMENTRY_NULL(jlongArray, getLineNumberTable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1241 Method* method = UNPACK_PAIR(Method, method);
1242 if (!method->has_linenumber_table()) {
1243 return nullptr;
1244 }
1245 u2 num_entries = 0;
1246 CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
1247 while (streamForSize.read_pair()) {
1248 num_entries++;
1249 }
1250
1251 CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
1252 JVMCIPrimitiveArray result = JVMCIENV->new_longArray(2 * num_entries, JVMCI_CHECK_NULL);
1253
1254 int i = 0;
1255 jlong value;
1256 while (stream.read_pair()) {
1257 value = ((jlong) stream.bci());
1258 JVMCIENV->put_long_at(result, i, value);
1259 value = ((jlong) stream.line());
1260 JVMCIENV->put_long_at(result, i + 1, value);
1261 i += 2;
1262 }
1263
1264 return (jlongArray) JVMCIENV->get_jobject(result);
1265 C2V_END
1266
1267 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1268 Method* method = UNPACK_PAIR(Method, method);
1269 if (!method->has_localvariable_table()) {
1270 return 0;
1271 }
1272 return (jlong) (address) method->localvariable_table_start();
1273 C2V_END
1274
1275 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1276 Method* method = UNPACK_PAIR(Method, method);
1277 return method->localvariable_table_length();
1278 C2V_END
1279
1280 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1281 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1282 MethodCounters* mcs = method->method_counters();
1283 if (mcs != nullptr) {
1284 mcs->clear_counters();
1285 }
1286 NOT_PRODUCT(method->set_compiled_invocation_count(0));
1287
1288 CompiledMethod* code = method->code();
1289 if (code != nullptr) {
1290 code->make_not_entrant();
1291 }
1292
1293 MethodData* method_data = method->method_data();
1294 if (method_data == nullptr) {
1295 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
1296 method_data = MethodData::allocate(loader_data, method, CHECK);
1297 method->set_method_data(method_data);
1298 } else {
1299 method_data->initialize();
1300 }
1301 C2V_END
1302
1303
1304 C2V_VMENTRY(void, invalidateHotSpotNmethod, (JNIEnv* env, jobject, jobject hs_nmethod, jboolean deoptimize))
1305 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1306 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, deoptimize, JVMCI_CHECK);
1307 C2V_END
1308
1309 C2V_VMENTRY_NULL(jlongArray, collectCounters, (JNIEnv* env, jobject))
1310 // Returns a zero length array if counters aren't enabled
1311 JVMCIPrimitiveArray array = JVMCIENV->new_longArray(JVMCICounterSize, JVMCI_CHECK_NULL);
1312 if (JVMCICounterSize > 0) {
1313 jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize);
1314 JavaThread::collect_counters(temp_array, JVMCICounterSize);
1315 JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize);
1316 }
1317 return (jlongArray) JVMCIENV->get_jobject(array);
1318 C2V_END
1319
1320 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject))
1321 return (jint) JVMCICounterSize;
1322 C2V_END
1323
1324 C2V_VMENTRY_0(jboolean, setCountersSize, (JNIEnv* env, jobject, jint new_size))
1325 return JavaThread::resize_all_jvmci_counters(new_size);
1326 C2V_END
1327
1328 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int entry_bci))
1329 HandleMark hm(THREAD);
1330 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1331 if (method.is_null()) {
1332 JVMCI_THROW_0(NullPointerException);
1333 }
1334 if (entry_bci >= method->code_size() || entry_bci < -1) {
1335 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci));
1336 }
1337 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
1338 C2V_END
1339
1340
1341 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong method_data_pointer))
1342 MethodData* mdo = (MethodData*) method_data_pointer;
1343 return mdo != nullptr && mdo->is_mature();
1344 C2V_END
1345
1346 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int entry_bci, int comp_level))
1347 Method* method = UNPACK_PAIR(Method, method);
1348 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != nullptr;
1349 C2V_END
1350
1351 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol))
1352 JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL);
1353 return JVMCIENV->get_jobject(sym);
1354 C2V_END
1355
1356 C2V_VMENTRY_NULL(jobject, getSignatureName, (JNIEnv* env, jobject, jlong klass_pointer))
1357 Klass* klass = UNPACK_PAIR(Klass, klass);
1358 JVMCIObject signature = JVMCIENV->create_string(klass->signature_name(), JVMCI_CHECK_NULL);
1359 return JVMCIENV->get_jobject(signature);
1360 C2V_END
1361
1362 /*
1363 * Used by matches() to convert a ResolvedJavaMethod[] to an array of Method*.
1364 */
1365 GrowableArray<Method*>* init_resolved_methods(jobjectArray methods, JVMCIEnv* JVMCIENV) {
1366 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1367 GrowableArray<Method*>* resolved_methods = new GrowableArray<Method*>(methods_oop->length());
1368 for (int i = 0; i < methods_oop->length(); i++) {
1369 oop resolved = methods_oop->obj_at(i);
1370 Method* resolved_method = nullptr;
1371 if (resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) {
1372 resolved_method = HotSpotJVMCI::asMethod(JVMCIENV, resolved);
1373 }
1374 resolved_methods->append(resolved_method);
1375 }
1376 return resolved_methods;
1377 }
1378
1379 /*
1380 * Used by c2v_iterateFrames to check if `method` matches one of the ResolvedJavaMethods in the `methods` array.
1381 * The ResolvedJavaMethod[] array is converted to a Method* array that is then cached in the resolved_methods_ref in/out parameter.
1382 * In case of a match, the matching ResolvedJavaMethod is returned in matched_jvmci_method_ref.
1383 */
1384 bool matches(jobjectArray methods, Method* method, GrowableArray<Method*>** resolved_methods_ref, Handle* matched_jvmci_method_ref, Thread* THREAD, JVMCIEnv* JVMCIENV) {
1385 GrowableArray<Method*>* resolved_methods = *resolved_methods_ref;
1386 if (resolved_methods == nullptr) {
1387 resolved_methods = init_resolved_methods(methods, JVMCIENV);
1388 *resolved_methods_ref = resolved_methods;
1389 }
1390 assert(method != nullptr, "method should not be null");
1391 assert(resolved_methods->length() == ((objArrayOop) JNIHandles::resolve(methods))->length(), "arrays must have the same length");
1392 for (int i = 0; i < resolved_methods->length(); i++) {
1393 Method* m = resolved_methods->at(i);
1394 if (m == method) {
1395 *matched_jvmci_method_ref = Handle(THREAD, ((objArrayOop) JNIHandles::resolve(methods))->obj_at(i));
1396 return true;
1397 }
1398 }
1399 return false;
1400 }
1401
1402 /*
1403 * Resolves an interface call to a concrete method handle.
1404 */
1405 methodHandle resolve_interface_call(Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
1406 CallInfo callinfo;
1407 Handle receiver = args->receiver();
1408 Klass* recvrKlass = receiver.is_null() ? (Klass*)nullptr : receiver->klass();
1409 LinkInfo link_info(spec_klass, name, signature);
1410 LinkResolver::resolve_interface_call(
1411 callinfo, receiver, recvrKlass, link_info, true, CHECK_(methodHandle()));
1412 methodHandle method(THREAD, callinfo.selected_method());
1413 assert(method.not_null(), "should have thrown exception");
1414 return method;
1415 }
1416
1417 /*
1418 * Used by c2v_iterateFrames to make a new vframeStream at the given compiled frame id (stack pointer) and vframe id.
1419 */
1420 void resync_vframestream_to_compiled_frame(vframeStream& vfst, intptr_t* stack_pointer, int vframe_id, JavaThread* thread, TRAPS) {
1421 vfst = vframeStream(thread);
1422 while (vfst.frame_id() != stack_pointer && !vfst.at_end()) {
1423 vfst.next();
1424 }
1425 if (vfst.frame_id() != stack_pointer) {
1426 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1427 }
1428 if (vfst.is_interpreted_frame()) {
1429 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1430 }
1431 while (vfst.vframe_id() != vframe_id) {
1432 if (vfst.at_end()) {
1433 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt")
1434 }
1435 vfst.next();
1436 assert(!vfst.is_interpreted_frame(), "Wrong frame type");
1437 }
1438 }
1439
1440 /*
1441 * Used by c2v_iterateFrames. Returns an array of any unallocated scope objects or null if none.
1442 */
1443 GrowableArray<ScopeValue*>* get_unallocated_objects_or_null(GrowableArray<ScopeValue*>* scope_objects) {
1444 GrowableArray<ScopeValue*>* unallocated = nullptr;
1445 for (int i = 0; i < scope_objects->length(); i++) {
1446 ObjectValue* sv = (ObjectValue*) scope_objects->at(i);
1447 if (sv->value().is_null()) {
1448 if (unallocated == nullptr) {
1449 unallocated = new GrowableArray<ScopeValue*>(scope_objects->length());
1450 }
1451 unallocated->append(sv);
1452 }
1453 }
1454 return unallocated;
1455 }
1456
1457 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
1458
1459 if (!thread->has_last_Java_frame()) {
1460 return nullptr;
1461 }
1462 Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
1463
1464 requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL);
1465
1466 HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1467
1468 vframeStream vfst(thread);
1469 jobjectArray methods = initial_methods;
1470 methodHandle visitor_method;
1471 GrowableArray<Method*>* resolved_methods = nullptr;
1472
1473 while (!vfst.at_end()) { // frame loop
1474 bool realloc_called = false;
1475 intptr_t* frame_id = vfst.frame_id();
1476
1477 // Previous compiledVFrame of this frame; use with at_scope() to reuse scope object pool.
1478 compiledVFrame* prev_cvf = nullptr;
1479
1480 for (; !vfst.at_end() && vfst.frame_id() == frame_id; vfst.next()) { // vframe loop
1481 int frame_number = 0;
1482 Method *method = vfst.method();
1483 int bci = vfst.bci();
1484
1485 Handle matched_jvmci_method;
1486 if (methods == nullptr || matches(methods, method, &resolved_methods, &matched_jvmci_method, THREAD, JVMCIENV)) {
1487 if (initialSkip > 0) {
1488 initialSkip--;
1489 continue;
1490 }
1491 javaVFrame* vf;
1492 if (prev_cvf != nullptr && prev_cvf->frame_pointer()->id() == frame_id) {
1493 assert(prev_cvf->is_compiled_frame(), "expected compiled Java frame");
1494 vf = prev_cvf->at_scope(vfst.decode_offset(), vfst.vframe_id());
1495 } else {
1496 vf = vfst.asJavaVFrame();
1497 }
1498
1499 StackValueCollection* locals = nullptr;
1500 typeArrayHandle localIsVirtual_h;
1501 if (vf->is_compiled_frame()) {
1502 // compiled method frame
1503 compiledVFrame* cvf = compiledVFrame::cast(vf);
1504
1505 ScopeDesc* scope = cvf->scope();
1506 // native wrappers do not have a scope
1507 if (scope != nullptr && scope->objects() != nullptr) {
1508 prev_cvf = cvf;
1509
1510 GrowableArray<ScopeValue*>* objects = nullptr;
1511 if (!realloc_called) {
1512 objects = scope->objects();
1513 } else {
1514 // some object might already have been re-allocated, only reallocate the non-allocated ones
1515 objects = get_unallocated_objects_or_null(scope->objects());
1516 }
1517
1518 if (objects != nullptr) {
1519 RegisterMap reg_map(vf->register_map());
1520 bool realloc_failures = Deoptimization::realloc_objects(thread, vf->frame_pointer(), ®_map, objects, CHECK_NULL);
1521 Deoptimization::reassign_fields(vf->frame_pointer(), ®_map, objects, realloc_failures, false);
1522 realloc_called = true;
1523 }
1524
1525 GrowableArray<ScopeValue*>* local_values = scope->locals();
1526 for (int i = 0; i < local_values->length(); i++) {
1527 ScopeValue* value = local_values->at(i);
1528 assert(!value->is_object_merge(), "Should not be.");
1529 if (value->is_object()) {
1530 if (localIsVirtual_h.is_null()) {
1531 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1532 localIsVirtual_h = typeArrayHandle(THREAD, array_oop);
1533 }
1534 localIsVirtual_h->bool_at_put(i, true);
1535 }
1536 }
1537 }
1538
1539 locals = cvf->locals();
1540 frame_number = cvf->vframe_id();
1541 } else {
1542 // interpreted method frame
1543 interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1544
1545 locals = ivf->locals();
1546 }
1547 assert(bci == vf->bci(), "wrong bci");
1548 assert(method == vf->method(), "wrong method");
1549
1550 Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1551 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), bci);
1552 if (matched_jvmci_method.is_null()) {
1553 methodHandle mh(THREAD, method);
1554 JVMCIObject jvmci_method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1555 matched_jvmci_method = Handle(THREAD, JNIHandles::resolve(jvmci_method.as_jobject()));
1556 }
1557 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), matched_jvmci_method());
1558 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), localIsVirtual_h());
1559
1560 HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM));
1561 HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) frame_id);
1562 HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number);
1563
1564 // initialize the locals array
1565 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1566 objArrayHandle array(THREAD, array_oop);
1567 for (int i = 0; i < locals->size(); i++) {
1568 StackValue* var = locals->at(i);
1569 if (var->type() == T_OBJECT) {
1570 array->obj_at_put(i, locals->at(i)->get_obj()());
1571 }
1572 }
1573 HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array());
1574 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE);
1575
1576 JavaValue result(T_OBJECT);
1577 JavaCallArguments args(visitor);
1578 if (visitor_method.is_null()) {
1579 visitor_method = resolve_interface_call(HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL);
1580 }
1581
1582 args.push_oop(frame_reference);
1583 JavaCalls::call(&result, visitor_method, &args, CHECK_NULL);
1584 if (result.get_oop() != nullptr) {
1585 return JNIHandles::make_local(thread, result.get_oop());
1586 }
1587 if (methods == initial_methods) {
1588 methods = match_methods;
1589 if (resolved_methods != nullptr && JNIHandles::resolve(match_methods) != JNIHandles::resolve(initial_methods)) {
1590 resolved_methods = nullptr;
1591 }
1592 }
1593 assert(initialSkip == 0, "There should be no match before initialSkip == 0");
1594 if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) {
1595 // the frame has been deoptimized, we need to re-synchronize the frame and vframe
1596 prev_cvf = nullptr;
1597 intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference());
1598 resync_vframestream_to_compiled_frame(vfst, stack_pointer, frame_number, thread, CHECK_NULL);
1599 }
1600 }
1601 } // end of vframe loop
1602 } // end of frame loop
1603
1604 // the end was reached without finding a matching method
1605 return nullptr;
1606 C2V_END
1607
1608 C2V_VMENTRY_0(int, decodeIndyIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint encoded_indy_index, jboolean resolve))
1609 if (!ConstantPool::is_invokedynamic_index(encoded_indy_index)) {
1610 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("not an encoded indy index %d", encoded_indy_index));
1611 }
1612
1613 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1614 CallInfo callInfo;
1615 int indy_index = cp->decode_invokedynamic_index(encoded_indy_index);
1616 if (resolve) {
1617 LinkResolver::resolve_invoke(callInfo, Handle(), cp, encoded_indy_index, Bytecodes::_invokedynamic, CHECK_0);
1618 cp->cache()->set_dynamic_call(callInfo, indy_index);
1619 }
1620 return cp->resolved_indy_entry_at(indy_index)->constant_pool_index();
1621 C2V_END
1622
1623 C2V_VMENTRY_0(int, decodeFieldIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint field_index))
1624 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1625 if (field_index < 0 || field_index >= cp->resolved_field_entries_length()) {
1626 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("invalid field index %d", field_index));
1627 }
1628 return cp->resolved_field_entry_at(field_index)->constant_pool_index();
1629 C2V_END
1630
1631 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
1632 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1633 Klass* holder = cp->klass_ref_at(index, Bytecodes::_invokehandle, CHECK);
1634 Symbol* name = cp->name_ref_at(index, Bytecodes::_invokehandle);
1635 if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1636 CallInfo callInfo;
1637 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1638 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1639 cp_cache_entry->set_method_handle(cp, callInfo);
1640 }
1641 C2V_END
1642
1643 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
1644 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1645 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1646 if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) {
1647 // MethodHandle.invoke* --> LambdaForm?
1648 ResourceMark rm;
1649
1650 LinkInfo link_info(cp, index, Bytecodes::_invokehandle, CATCH);
1651
1652 Klass* resolved_klass = link_info.resolved_klass();
1653
1654 Symbol* name_sym = cp->name_ref_at(index, Bytecodes::_invokehandle);
1655
1656 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1657 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1658
1659 methodHandle adapter_method(THREAD, cp_cache_entry->f1_as_method());
1660
1661 methodHandle resolved_method(adapter_method);
1662
1663 // Can we treat it as a regular invokevirtual?
1664 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1665 vmassert(!resolved_method->is_static(),"!");
1666 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1667 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1668 vmassert(cp_cache_entry->appendix_if_resolved(cp) == nullptr, "!");
1669
1670 methodHandle m(THREAD, LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1671 vmassert(m == resolved_method, "!!");
1672 return -1;
1673 }
1674
1675 return Bytecodes::_invokevirtual;
1676 }
1677 if (cp->is_invokedynamic_index(index)) {
1678 if (cp->resolved_indy_entry_at(cp->decode_cpcache_index(index))->is_resolved()) {
1679 return Bytecodes::_invokedynamic;
1680 }
1681 }
1682 return -1;
1683 C2V_END
1684
1685
1686 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject))
1687 JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL);
1688 JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL);
1689 JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL);
1690 JVMCIENV->put_object_at(holders, 0, mh);
1691 JVMCIENV->put_object_at(holders, 1, vh);
1692 return JVMCIENV->get_jobject(holders);
1693 C2V_END
1694
1695 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject))
1696 //see compute_recording_non_safepoints in debugInfroRec.cpp
1697 if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1698 return true;
1699 }
1700 return DebugNonSafepoints;
1701 C2V_END
1702
1703 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1704 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate))
1705 JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame);
1706 if (hs_frame.is_null()) {
1707 JVMCI_THROW_MSG(NullPointerException, "stack frame is null");
1708 }
1709
1710 requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK);
1711
1712 JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK);
1713
1714 // look for the given stack frame
1715 StackFrameStream fst(thread, false /* update */, true /* process_frames */);
1716 intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame);
1717 while (fst.current()->id() != stack_pointer && !fst.is_done()) {
1718 fst.next();
1719 }
1720 if (fst.current()->id() != stack_pointer) {
1721 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found");
1722 }
1723
1724 if (invalidate) {
1725 if (!fst.current()->is_compiled_frame()) {
1726 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1727 }
1728 assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
1729 ((nmethod*) fst.current()->cb())->make_not_entrant();
1730 }
1731 Deoptimization::deoptimize(thread, *fst.current(), Deoptimization::Reason_none);
1732 // look for the frame again as it has been updated by deopt (pc, deopt state...)
1733 StackFrameStream fstAfterDeopt(thread, true /* update */, true /* process_frames */);
1734 while (fstAfterDeopt.current()->id() != stack_pointer && !fstAfterDeopt.is_done()) {
1735 fstAfterDeopt.next();
1736 }
1737 if (fstAfterDeopt.current()->id() != stack_pointer) {
1738 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found after deopt");
1739 }
1740
1741 vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1742 if (!vf->is_compiled_frame()) {
1743 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1744 }
1745
1746 GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1747 while (true) {
1748 assert(vf->is_compiled_frame(), "Wrong frame type");
1749 virtualFrames->push(compiledVFrame::cast(vf));
1750 if (vf->is_top()) {
1751 break;
1752 }
1753 vf = vf->sender();
1754 }
1755
1756 int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame);
1757 if (last_frame_number >= virtualFrames->length()) {
1758 JVMCI_THROW_MSG(IllegalStateException, "invalid frame number");
1759 }
1760
1761 // Reallocate the non-escaping objects and restore their fields.
1762 assert (virtualFrames->at(last_frame_number)->scope() != nullptr,"invalid scope");
1763 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1764
1765 if (objects == nullptr) {
1766 // no objects to materialize
1767 return;
1768 }
1769
1770 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK);
1771 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
1772
1773 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1774 compiledVFrame* cvf = virtualFrames->at(frame_index);
1775
1776 GrowableArray<ScopeValue*>* scopedValues = cvf->scope()->locals();
1777 StackValueCollection* locals = cvf->locals();
1778 if (locals != nullptr) {
1779 for (int i2 = 0; i2 < locals->size(); i2++) {
1780 StackValue* var = locals->at(i2);
1781 assert(!scopedValues->at(i2)->is_object_merge(), "Should not be.");
1782 if (var->type() == T_OBJECT && scopedValues->at(i2)->is_object()) {
1783 jvalue val;
1784 val.l = cast_from_oop<jobject>(locals->at(i2)->get_obj()());
1785 cvf->update_local(T_OBJECT, i2, val);
1786 }
1787 }
1788 }
1789
1790 GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1791 StackValueCollection* expressions = cvf->expressions();
1792 if (expressions != nullptr) {
1793 for (int i2 = 0; i2 < expressions->size(); i2++) {
1794 StackValue* var = expressions->at(i2);
1795 assert(!scopeExpressions->at(i2)->is_object_merge(), "Should not be.");
1796 if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) {
1797 jvalue val;
1798 val.l = cast_from_oop<jobject>(expressions->at(i2)->get_obj()());
1799 cvf->update_stack(T_OBJECT, i2, val);
1800 }
1801 }
1802 }
1803
1804 GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors();
1805 GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
1806 if (monitors != nullptr) {
1807 for (int i2 = 0; i2 < monitors->length(); i2++) {
1808 cvf->update_monitor(i2, monitors->at(i2));
1809 }
1810 }
1811 }
1812
1813 // all locals are materialized by now
1814 JVMCIENV->set_HotSpotStackFrameReference_localIsVirtual(hs_frame, nullptr);
1815 // update the locals array
1816 JVMCIObjectArray array = JVMCIENV->get_HotSpotStackFrameReference_locals(hs_frame);
1817 StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1818 for (int i = 0; i < locals->size(); i++) {
1819 StackValue* var = locals->at(i);
1820 if (var->type() == T_OBJECT) {
1821 JVMCIENV->put_object_at(array, i, HotSpotJVMCI::wrap(locals->at(i)->get_obj()()));
1822 }
1823 }
1824 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, hs_frame, JNI_TRUE);
1825 C2V_END
1826
1827 // Use of tty does not require the current thread to be attached to the VM
1828 // so no need for a full C2V_VMENTRY transition.
1829 C2V_VMENTRY_PREFIX(void, writeDebugOutput, (JNIEnv* env, jobject, jlong buffer, jint length, bool flush))
1830 if (length <= 8) {
1831 tty->write((char*) &buffer, length);
1832 } else {
1833 tty->write((char*) buffer, length);
1834 }
1835 if (flush) {
1836 tty->flush();
1837 }
1838 C2V_END
1839
1840 // Use of tty does not require the current thread to be attached to the VM
1841 // so no need for a full C2V_VMENTRY transition.
1842 C2V_VMENTRY_PREFIX(void, flushDebugOutput, (JNIEnv* env, jobject))
1843 tty->flush();
1844 C2V_END
1845
1846 C2V_VMENTRY_0(jint, methodDataProfileDataSize, (JNIEnv* env, jobject, jlong method_data_pointer, jint position))
1847 MethodData* mdo = (MethodData*) method_data_pointer;
1848 ProfileData* profile_data = mdo->data_at(position);
1849 if (mdo->is_valid(profile_data)) {
1850 return profile_data->size_in_bytes();
1851 }
1852 // Java code should never directly access the extra data section
1853 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Invalid profile data position %d", position));
1854 C2V_END
1855
1856 C2V_VMENTRY_0(jint, methodDataExceptionSeen, (JNIEnv* env, jobject, jlong method_data_pointer, jint bci))
1857 MethodData* mdo = (MethodData*) method_data_pointer;
1858 MutexLocker mu(mdo->extra_data_lock());
1859 DataLayout* data = mdo->extra_data_base();
1860 DataLayout* end = mdo->args_data_limit();
1861 for (;; data = mdo->next_extra(data)) {
1862 assert(data < end, "moved past end of extra data");
1863 int tag = data->tag();
1864 switch(tag) {
1865 case DataLayout::bit_data_tag: {
1866 BitData* bit_data = (BitData*) data->data_in();
1867 if (bit_data->bci() == bci) {
1868 return bit_data->exception_seen() ? 1 : 0;
1869 }
1870 break;
1871 }
1872 case DataLayout::no_tag:
1873 // There is a free slot so return false since a BitData would have been allocated to record
1874 // true if it had been seen.
1875 return 0;
1876 case DataLayout::arg_info_data_tag:
1877 // The bci wasn't found and there are no free slots to record a trap for this location, so always
1878 // return unknown.
1879 return -1;
1880 }
1881 }
1882 ShouldNotReachHere();
1883 return -1;
1884 C2V_END
1885
1886 C2V_VMENTRY_NULL(jobject, getInterfaces, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1887 Klass* klass = UNPACK_PAIR(Klass, klass);
1888 if (klass == nullptr) {
1889 JVMCI_THROW_0(NullPointerException);
1890 }
1891
1892 if (!klass->is_instance_klass()) {
1893 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
1894 }
1895 InstanceKlass* iklass = InstanceKlass::cast(klass);
1896
1897 // Regular instance klass, fill in all local interfaces
1898 int size = iklass->local_interfaces()->length();
1899 JVMCIObjectArray interfaces = JVMCIENV->new_HotSpotResolvedObjectTypeImpl_array(size, JVMCI_CHECK_NULL);
1900 for (int index = 0; index < size; index++) {
1901 JVMCIKlassHandle klass(THREAD);
1902 Klass* k = iklass->local_interfaces()->at(index);
1903 klass = k;
1904 JVMCIObject type = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
1905 JVMCIENV->put_object_at(interfaces, index, type);
1906 }
1907 return JVMCIENV->get_jobject(interfaces);
1908 C2V_END
1909
1910 C2V_VMENTRY_NULL(jobject, getComponentType, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1911 Klass* klass = UNPACK_PAIR(Klass, klass);
1912 if (klass == nullptr) {
1913 JVMCI_THROW_0(NullPointerException);
1914 }
1915
1916 if (!klass->is_array_klass()) {
1917 return nullptr;
1918 }
1919 oop mirror = klass->java_mirror();
1920 oop component_mirror = java_lang_Class::component_mirror(mirror);
1921 if (component_mirror == nullptr) {
1922 JVMCI_THROW_MSG_0(NullPointerException,
1923 err_msg("Component mirror for array class %s is null", klass->external_name()))
1924 }
1925
1926 Klass* component_klass = java_lang_Class::as_Klass(component_mirror);
1927 if (component_klass != nullptr) {
1928 JVMCIKlassHandle klass_handle(THREAD, component_klass);
1929 JVMCIObject result = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
1930 return JVMCIENV->get_jobject(result);
1931 }
1932 BasicType type = java_lang_Class::primitive_type(component_mirror);
1933 JVMCIObject result = JVMCIENV->get_jvmci_primitive_type(type);
1934 return JVMCIENV->get_jobject(result);
1935 C2V_END
1936
1937 C2V_VMENTRY(void, ensureInitialized, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1938 Klass* klass = UNPACK_PAIR(Klass, klass);
1939 if (klass == nullptr) {
1940 JVMCI_THROW(NullPointerException);
1941 }
1942 if (klass->should_be_initialized()) {
1943 InstanceKlass* k = InstanceKlass::cast(klass);
1944 k->initialize(CHECK);
1945 }
1946 C2V_END
1947
1948 C2V_VMENTRY(void, ensureLinked, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1949 Klass* klass = UNPACK_PAIR(Klass, klass);
1950 if (klass == nullptr) {
1951 JVMCI_THROW(NullPointerException);
1952 }
1953 if (klass->is_instance_klass()) {
1954 InstanceKlass* k = InstanceKlass::cast(klass);
1955 k->link_class(CHECK);
1956 }
1957 C2V_END
1958
1959 C2V_VMENTRY_0(jint, interpreterFrameSize, (JNIEnv* env, jobject, jobject bytecode_frame_handle))
1960 if (bytecode_frame_handle == nullptr) {
1961 JVMCI_THROW_0(NullPointerException);
1962 }
1963
1964 JVMCIObject top_bytecode_frame = JVMCIENV->wrap(bytecode_frame_handle);
1965 JVMCIObject bytecode_frame = top_bytecode_frame;
1966 int size = 0;
1967 int callee_parameters = 0;
1968 int callee_locals = 0;
1969 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1970 int extra_args = method->max_stack() - JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1971
1972 while (bytecode_frame.is_non_null()) {
1973 int locks = JVMCIENV->get_BytecodeFrame_numLocks(bytecode_frame);
1974 int temps = JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1975 bool is_top_frame = (JVMCIENV->equals(bytecode_frame, top_bytecode_frame));
1976 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1977
1978 int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
1979 temps + callee_parameters,
1980 extra_args,
1981 locks,
1982 callee_parameters,
1983 callee_locals,
1984 is_top_frame);
1985 size += frame_size;
1986
1987 callee_parameters = method->size_of_parameters();
1988 callee_locals = method->max_locals();
1989 extra_args = 0;
1990 bytecode_frame = JVMCIENV->get_BytecodePosition_caller(bytecode_frame);
1991 }
1992 return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
1993 C2V_END
1994
1995 C2V_VMENTRY(void, compileToBytecode, (JNIEnv* env, jobject, jobject lambda_form_handle))
1996 Handle lambda_form = JVMCIENV->asConstant(JVMCIENV->wrap(lambda_form_handle), JVMCI_CHECK);
1997 if (lambda_form->is_a(vmClasses::LambdaForm_klass())) {
1998 TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode");
1999 JavaValue result(T_VOID);
2000 JavaCalls::call_special(&result, lambda_form, vmClasses::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK);
2001 } else {
2002 JVMCI_THROW_MSG(IllegalArgumentException,
2003 err_msg("Unexpected type: %s", lambda_form->klass()->external_name()))
2004 }
2005 C2V_END
2006
2007 C2V_VMENTRY_0(jint, getIdentityHashCode, (JNIEnv* env, jobject, jobject object))
2008 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2009 return obj->identity_hash();
2010 C2V_END
2011
2012 C2V_VMENTRY_0(jboolean, isInternedString, (JNIEnv* env, jobject, jobject object))
2013 Handle str = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2014 if (!java_lang_String::is_instance(str())) {
2015 return false;
2016 }
2017 int len;
2018 jchar* name = java_lang_String::as_unicode_string(str(), len, CHECK_false);
2019 return (StringTable::lookup(name, len) != nullptr);
2020 C2V_END
2021
2022
2023 C2V_VMENTRY_NULL(jobject, unboxPrimitive, (JNIEnv* env, jobject, jobject object))
2024 if (object == nullptr) {
2025 JVMCI_THROW_0(NullPointerException);
2026 }
2027 Handle box = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2028 BasicType type = java_lang_boxing_object::basic_type(box());
2029 jvalue result;
2030 if (java_lang_boxing_object::get_value(box(), &result) == T_ILLEGAL) {
2031 return nullptr;
2032 }
2033 JVMCIObject boxResult = JVMCIENV->create_box(type, &result, JVMCI_CHECK_NULL);
2034 return JVMCIENV->get_jobject(boxResult);
2035 C2V_END
2036
2037 C2V_VMENTRY_NULL(jobject, boxPrimitive, (JNIEnv* env, jobject, jobject object))
2038 if (object == nullptr) {
2039 JVMCI_THROW_0(NullPointerException);
2040 }
2041 JVMCIObject box = JVMCIENV->wrap(object);
2042 BasicType type = JVMCIENV->get_box_type(box);
2043 if (type == T_ILLEGAL) {
2044 return nullptr;
2045 }
2046 jvalue value = JVMCIENV->get_boxed_value(type, box);
2047 JavaValue box_result(T_OBJECT);
2048 JavaCallArguments jargs;
2049 Klass* box_klass = nullptr;
2050 Symbol* box_signature = nullptr;
2051 #define BOX_CASE(bt, v, argtype, name) \
2052 case bt: \
2053 jargs.push_##argtype(value.v); \
2054 box_klass = vmClasses::name##_klass(); \
2055 box_signature = vmSymbols::name##_valueOf_signature(); \
2056 break
2057
2058 switch (type) {
2059 BOX_CASE(T_BOOLEAN, z, int, Boolean);
2060 BOX_CASE(T_BYTE, b, int, Byte);
2061 BOX_CASE(T_CHAR, c, int, Character);
2062 BOX_CASE(T_SHORT, s, int, Short);
2063 BOX_CASE(T_INT, i, int, Integer);
2064 BOX_CASE(T_LONG, j, long, Long);
2065 BOX_CASE(T_FLOAT, f, float, Float);
2066 BOX_CASE(T_DOUBLE, d, double, Double);
2067 default:
2068 ShouldNotReachHere();
2069 }
2070 #undef BOX_CASE
2071
2072 JavaCalls::call_static(&box_result,
2073 box_klass,
2074 vmSymbols::valueOf_name(),
2075 box_signature, &jargs, CHECK_NULL);
2076 oop hotspot_box = box_result.get_oop();
2077 JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false);
2078 return JVMCIENV->get_jobject(result);
2079 C2V_END
2080
2081 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2082 Klass* klass = UNPACK_PAIR(Klass, klass);
2083 if (klass == nullptr) {
2084 JVMCI_THROW_0(NullPointerException);
2085 }
2086 if (!klass->is_instance_klass()) {
2087 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
2088 return JVMCIENV->get_jobjectArray(methods);
2089 }
2090
2091 InstanceKlass* iklass = InstanceKlass::cast(klass);
2092 GrowableArray<Method*> constructors_array;
2093 for (int i = 0; i < iklass->methods()->length(); i++) {
2094 Method* m = iklass->methods()->at(i);
2095 if (m->is_initializer() && !m->is_static()) {
2096 constructors_array.append(m);
2097 }
2098 }
2099 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
2100 for (int i = 0; i < constructors_array.length(); i++) {
2101 methodHandle ctor(THREAD, constructors_array.at(i));
2102 JVMCIObject method = JVMCIENV->get_jvmci_method(ctor, JVMCI_CHECK_NULL);
2103 JVMCIENV->put_object_at(methods, i, method);
2104 }
2105 return JVMCIENV->get_jobjectArray(methods);
2106 C2V_END
2107
2108 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2109 Klass* klass = UNPACK_PAIR(Klass, klass);
2110 if (klass == nullptr) {
2111 JVMCI_THROW_0(NullPointerException);
2112 }
2113 if (!klass->is_instance_klass()) {
2114 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
2115 return JVMCIENV->get_jobjectArray(methods);
2116 }
2117
2118 InstanceKlass* iklass = InstanceKlass::cast(klass);
2119 GrowableArray<Method*> methods_array;
2120 for (int i = 0; i < iklass->methods()->length(); i++) {
2121 Method* m = iklass->methods()->at(i);
2122 if (!m->is_initializer() && !m->is_overpass()) {
2123 methods_array.append(m);
2124 }
2125 }
2126 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
2127 for (int i = 0; i < methods_array.length(); i++) {
2128 methodHandle mh(THREAD, methods_array.at(i));
2129 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
2130 JVMCIENV->put_object_at(methods, i, method);
2131 }
2132 return JVMCIENV->get_jobjectArray(methods);
2133 C2V_END
2134
2135 C2V_VMENTRY_NULL(jobjectArray, getDeclaredFieldsInfo, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2136 Klass* klass = UNPACK_PAIR(Klass, klass);
2137 if (klass == nullptr) {
2138 JVMCI_THROW_0(NullPointerException);
2139 }
2140 if (!klass->is_instance_klass()) {
2141 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "not an InstanceKlass");
2142 }
2143 InstanceKlass* iklass = InstanceKlass::cast(klass);
2144 int java_fields, injected_fields;
2145 GrowableArray<FieldInfo>* fields = FieldInfoStream::create_FieldInfoArray(iklass->fieldinfo_stream(), &java_fields, &injected_fields);
2146 JVMCIObjectArray array = JVMCIENV->new_FieldInfo_array(fields->length(), JVMCIENV);
2147 for (int i = 0; i < fields->length(); i++) {
2148 JVMCIObject field_info = JVMCIENV->new_FieldInfo(fields->adr_at(i), JVMCI_CHECK_NULL);
2149 JVMCIENV->put_object_at(array, i, field_info);
2150 }
2151 return array.as_jobject();
2152 C2V_END
2153
2154 static jobject read_field_value(Handle obj, long displacement, jchar type_char, bool is_static, Thread* THREAD, JVMCIEnv* JVMCIENV) {
2155
2156 BasicType basic_type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_NULL);
2157 int basic_type_elemsize = type2aelembytes(basic_type);
2158 if (displacement < 0 || ((size_t) displacement + basic_type_elemsize > HeapWordSize * obj->size())) {
2159 // Reading outside of the object bounds
2160 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading outside object bounds");
2161 }
2162
2163 // Perform basic sanity checks on the read. Primitive reads are permitted to read outside the
2164 // bounds of their fields but object reads must map exactly onto the underlying oop slot.
2165 bool aligned = (displacement % basic_type_elemsize) == 0;
2166 if (!aligned) {
2167 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "read is unaligned");
2168 }
2169 if (basic_type == T_OBJECT) {
2170 if (obj->is_objArray()) {
2171 if (displacement < arrayOopDesc::base_offset_in_bytes(T_OBJECT)) {
2172 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
2173 }
2174 if (displacement + heapOopSize > arrayOopDesc::base_offset_in_bytes(T_OBJECT) + arrayOop(obj())->length() * heapOopSize) {
2175 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading after last array element");
2176 }
2177 if (((displacement - arrayOopDesc::base_offset_in_bytes(T_OBJECT)) % heapOopSize) != 0) {
2178 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "misaligned object read from array");
2179 }
2180 } else if (obj->is_instance()) {
2181 InstanceKlass* klass = InstanceKlass::cast(is_static ? java_lang_Class::as_Klass(obj()) : obj->klass());
2182 fieldDescriptor fd;
2183 if (!klass->find_field_from_offset(displacement, is_static, &fd)) {
2184 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Can't find field at displacement %d in object of type %s", (int) displacement, klass->external_name()));
2185 }
2186 if (fd.field_type() != T_OBJECT && fd.field_type() != T_ARRAY) {
2187 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Field at displacement %d in object of type %s is %s but expected %s", (int) displacement,
2188 klass->external_name(), type2name(fd.field_type()), type2name(basic_type)));
2189 }
2190 } else if (obj->is_typeArray()) {
2191 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Can't read objects from primitive array");
2192 } else {
2193 ShouldNotReachHere();
2194 }
2195 } else {
2196 if (obj->is_objArray()) {
2197 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Reading primitive from object array");
2198 } else if (obj->is_typeArray()) {
2199 if (displacement < arrayOopDesc::base_offset_in_bytes(ArrayKlass::cast(obj->klass())->element_type())) {
2200 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
2201 }
2202 }
2203 }
2204
2205 jlong value = 0;
2206
2207 // Treat all reads as volatile for simplicity as this function can be used
2208 // both for reading Java fields declared as volatile as well as for constant
2209 // folding Unsafe.get* methods with volatile semantics.
2210
2211 switch (basic_type) {
2212 case T_BOOLEAN: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jboolean>(displacement)); break;
2213 case T_BYTE: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jbyte>(displacement)); break;
2214 case T_SHORT: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jshort>(displacement)); break;
2215 case T_CHAR: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jchar>(displacement)); break;
2216 case T_FLOAT:
2217 case T_INT: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jint>(displacement)); break;
2218 case T_DOUBLE:
2219 case T_LONG: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jlong>(displacement)); break;
2220
2221 case T_OBJECT: {
2222 if (displacement == java_lang_Class::component_mirror_offset() && java_lang_Class::is_instance(obj()) &&
2223 (java_lang_Class::as_Klass(obj()) == nullptr || !java_lang_Class::as_Klass(obj())->is_array_klass())) {
2224 // Class.componentType for non-array classes can transiently contain an int[] that's
2225 // used for locking so always return null to mimic Class.getComponentType()
2226 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
2227 }
2228
2229 // Perform the read including any barriers required to make the reference strongly reachable
2230 // since it will be wrapped as a JavaConstant.
2231 oop value = obj->obj_field_access<MO_SEQ_CST | ON_UNKNOWN_OOP_REF>(displacement);
2232
2233 if (value == nullptr) {
2234 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
2235 } else {
2236 if (value != nullptr && !oopDesc::is_oop(value)) {
2237 // Throw an exception to improve debuggability. This check isn't totally reliable because
2238 // is_oop doesn't try to be completety safe but for most invalid values it provides a good
2239 // enough answer. It possible to crash in the is_oop call but that just means the crash happens
2240 // closer to where things went wrong.
2241 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Read bad oop " INTPTR_FORMAT " at offset " JLONG_FORMAT " in object " INTPTR_FORMAT " of type %s",
2242 p2i(value), displacement, p2i(obj()), obj->klass()->external_name()));
2243 }
2244
2245 JVMCIObject result = JVMCIENV->get_object_constant(value);
2246 return JVMCIENV->get_jobject(result);
2247 }
2248 }
2249
2250 default:
2251 ShouldNotReachHere();
2252 }
2253 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, value, JVMCI_CHECK_NULL);
2254 return JVMCIENV->get_jobject(result);
2255 }
2256
2257 C2V_VMENTRY_NULL(jobject, readStaticFieldValue, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), long displacement, jchar type_char))
2258 Klass* klass = UNPACK_PAIR(Klass, klass);
2259 Handle obj(THREAD, klass->java_mirror());
2260 return read_field_value(obj, displacement, type_char, true, THREAD, JVMCIENV);
2261 C2V_END
2262
2263 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, ARGUMENT_PAIR(expected_type), long displacement, jchar type_char))
2264 if (object == nullptr) {
2265 JVMCI_THROW_0(NullPointerException);
2266 }
2267
2268 // asConstant will throw an NPE if a constant contains null
2269 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2270
2271 Klass* expected_klass = UNPACK_PAIR(Klass, expected_type);
2272 if (expected_klass != nullptr) {
2273 InstanceKlass* expected_iklass = InstanceKlass::cast(expected_klass);
2274 if (!obj->is_a(expected_iklass)) {
2275 // Not of the expected type
2276 return nullptr;
2277 }
2278 }
2279 bool is_static = expected_klass == nullptr && java_lang_Class::is_instance(obj()) && displacement >= InstanceMirrorKlass::offset_of_static_fields();
2280 return read_field_value(obj, displacement, type_char, is_static, THREAD, JVMCIENV);
2281 C2V_END
2282
2283 C2V_VMENTRY_0(jboolean, isInstance, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jobject object))
2284 Klass* klass = UNPACK_PAIR(Klass, klass);
2285 if (object == nullptr || klass == nullptr) {
2286 JVMCI_THROW_0(NullPointerException);
2287 }
2288 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2289 return obj->is_a(klass);
2290 C2V_END
2291
2292 C2V_VMENTRY_0(jboolean, isAssignableFrom, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(subklass)))
2293 Klass* klass = UNPACK_PAIR(Klass, klass);
2294 Klass* subklass = UNPACK_PAIR(Klass, subklass);
2295 if (klass == nullptr || subklass == nullptr) {
2296 JVMCI_THROW_0(NullPointerException);
2297 }
2298 return subklass->is_subtype_of(klass);
2299 C2V_END
2300
2301 C2V_VMENTRY_0(jboolean, isTrustedForIntrinsics, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2302 Klass* klass = UNPACK_PAIR(Klass, klass);
2303 if (klass == nullptr) {
2304 JVMCI_THROW_0(NullPointerException);
2305 }
2306 InstanceKlass* ik = InstanceKlass::cast(klass);
2307 if (ik->class_loader_data()->is_boot_class_loader_data() || ik->class_loader_data()->is_platform_class_loader_data()) {
2308 return true;
2309 }
2310 return false;
2311 C2V_END
2312
2313 C2V_VMENTRY_NULL(jobject, asJavaType, (JNIEnv* env, jobject, jobject object))
2314 if (object == nullptr) {
2315 JVMCI_THROW_0(NullPointerException);
2316 }
2317 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2318 if (java_lang_Class::is_instance(obj())) {
2319 if (java_lang_Class::is_primitive(obj())) {
2320 JVMCIObject type = JVMCIENV->get_jvmci_primitive_type(java_lang_Class::primitive_type(obj()));
2321 return JVMCIENV->get_jobject(type);
2322 }
2323 Klass* klass = java_lang_Class::as_Klass(obj());
2324 JVMCIKlassHandle klass_handle(THREAD);
2325 klass_handle = klass;
2326 JVMCIObject type = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
2327 return JVMCIENV->get_jobject(type);
2328 }
2329 return nullptr;
2330 C2V_END
2331
2332
2333 C2V_VMENTRY_NULL(jobject, asString, (JNIEnv* env, jobject, jobject object))
2334 if (object == nullptr) {
2335 JVMCI_THROW_0(NullPointerException);
2336 }
2337 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2338 const char* str = java_lang_String::as_utf8_string(obj());
2339 JVMCIObject result = JVMCIENV->create_string(str, JVMCI_CHECK_NULL);
2340 return JVMCIENV->get_jobject(result);
2341 C2V_END
2342
2343
2344 C2V_VMENTRY_0(jboolean, equals, (JNIEnv* env, jobject, jobject x, jlong xHandle, jobject y, jlong yHandle))
2345 if (x == nullptr || y == nullptr) {
2346 JVMCI_THROW_0(NullPointerException);
2347 }
2348 return JVMCIENV->resolve_oop_handle(xHandle) == JVMCIENV->resolve_oop_handle(yHandle);
2349 C2V_END
2350
2351 C2V_VMENTRY_NULL(jobject, getJavaMirror, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2352 Klass* klass = UNPACK_PAIR(Klass, klass);
2353 if (klass == nullptr) {
2354 JVMCI_THROW_0(NullPointerException);
2355 }
2356 Handle mirror(THREAD, klass->java_mirror());
2357 JVMCIObject result = JVMCIENV->get_object_constant(mirror());
2358 return JVMCIENV->get_jobject(result);
2359 C2V_END
2360
2361
2362 C2V_VMENTRY_0(jint, getArrayLength, (JNIEnv* env, jobject, jobject x))
2363 if (x == nullptr) {
2364 JVMCI_THROW_0(NullPointerException);
2365 }
2366 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2367 if (xobj->klass()->is_array_klass()) {
2368 return arrayOop(xobj())->length();
2369 }
2370 return -1;
2371 C2V_END
2372
2373
2374 C2V_VMENTRY_NULL(jobject, readArrayElement, (JNIEnv* env, jobject, jobject x, int index))
2375 if (x == nullptr) {
2376 JVMCI_THROW_0(NullPointerException);
2377 }
2378 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_NULL);
2379 if (xobj->klass()->is_array_klass()) {
2380 arrayOop array = arrayOop(xobj());
2381 BasicType element_type = ArrayKlass::cast(array->klass())->element_type();
2382 if (index < 0 || index >= array->length()) {
2383 return nullptr;
2384 }
2385 JVMCIObject result;
2386
2387 if (element_type == T_OBJECT) {
2388 result = JVMCIENV->get_object_constant(objArrayOop(xobj())->obj_at(index));
2389 if (result.is_null()) {
2390 result = JVMCIENV->get_JavaConstant_NULL_POINTER();
2391 }
2392 } else {
2393 jvalue value;
2394 switch (element_type) {
2395 case T_DOUBLE: value.d = typeArrayOop(xobj())->double_at(index); break;
2396 case T_FLOAT: value.f = typeArrayOop(xobj())->float_at(index); break;
2397 case T_LONG: value.j = typeArrayOop(xobj())->long_at(index); break;
2398 case T_INT: value.i = typeArrayOop(xobj())->int_at(index); break;
2399 case T_SHORT: value.s = typeArrayOop(xobj())->short_at(index); break;
2400 case T_CHAR: value.c = typeArrayOop(xobj())->char_at(index); break;
2401 case T_BYTE: value.b = typeArrayOop(xobj())->byte_at(index); break;
2402 case T_BOOLEAN: value.z = typeArrayOop(xobj())->byte_at(index) & 1; break;
2403 default: ShouldNotReachHere();
2404 }
2405 result = JVMCIENV->create_box(element_type, &value, JVMCI_CHECK_NULL);
2406 }
2407 assert(!result.is_null(), "must have a value");
2408 return JVMCIENV->get_jobject(result);
2409 }
2410 return nullptr;;
2411 C2V_END
2412
2413
2414 C2V_VMENTRY_0(jint, arrayBaseOffset, (JNIEnv* env, jobject, jchar type_char))
2415 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
2416 return arrayOopDesc::base_offset_in_bytes(type);
2417 C2V_END
2418
2419 C2V_VMENTRY_0(jint, arrayIndexScale, (JNIEnv* env, jobject, jchar type_char))
2420 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
2421 return type2aelembytes(type);
2422 C2V_END
2423
2424 C2V_VMENTRY(void, releaseClearedOopHandles, (JNIEnv* env, jobject))
2425 JVMCIENV->runtime()->release_cleared_oop_handles();
2426 C2V_END
2427
2428 static void requireJVMCINativeLibrary(JVMCI_TRAPS) {
2429 if (!UseJVMCINativeLibrary) {
2430 JVMCI_THROW_MSG(UnsupportedOperationException, "JVMCI shared library is not enabled (requires -XX:+UseJVMCINativeLibrary)");
2431 }
2432 }
2433
2434 C2V_VMENTRY_NULL(jlongArray, registerNativeMethods, (JNIEnv* env, jobject, jclass mirror))
2435 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2436 requireInHotSpot("registerNativeMethods", JVMCI_CHECK_NULL);
2437 char* sl_path;
2438 void* sl_handle;
2439 JVMCIRuntime* runtime;
2440 {
2441 // Ensure the JVMCI shared library runtime is initialized.
2442 bool jni_enomem_is_fatal = false;
2443 JVMCIEnv __peer_jvmci_env__(thread, false, jni_enomem_is_fatal, __FILE__, __LINE__);
2444 JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2445 if (peerEnv->has_jni_enomem()) {
2446 JVMCI_THROW_MSG_0(OutOfMemoryError, "JNI_ENOMEM creating or attaching to libjvmci");
2447 }
2448 HandleMark hm(THREAD);
2449 runtime = JVMCI::compiler_runtime(thread);
2450 if (peerEnv->has_pending_exception()) {
2451 peerEnv->describe_pending_exception(tty);
2452 }
2453 sl_handle = JVMCI::get_shared_library(sl_path, false);
2454 if (sl_handle == nullptr) {
2455 JVMCI_THROW_MSG_0(InternalError, err_msg("Error initializing JVMCI runtime %d", runtime->id()));
2456 }
2457 }
2458
2459 if (mirror == nullptr) {
2460 JVMCI_THROW_0(NullPointerException);
2461 }
2462 Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
2463 if (klass == nullptr || !klass->is_instance_klass()) {
2464 JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type");
2465 }
2466
2467 InstanceKlass* iklass = InstanceKlass::cast(klass);
2468 for (int i = 0; i < iklass->methods()->length(); i++) {
2469 methodHandle method(THREAD, iklass->methods()->at(i));
2470 if (method->is_native()) {
2471
2472 // Compute argument size
2473 int args_size = 1 // JNIEnv
2474 + (method->is_static() ? 1 : 0) // class for static methods
2475 + method->size_of_parameters(); // actual parameters
2476
2477 // 1) Try JNI short style
2478 stringStream st;
2479 char* pure_name = NativeLookup::pure_jni_name(method);
2480 guarantee(pure_name != nullptr, "Illegal native method name encountered");
2481 os::print_jni_name_prefix_on(&st, args_size);
2482 st.print_raw(pure_name);
2483 os::print_jni_name_suffix_on(&st, args_size);
2484 char* jni_name = st.as_string();
2485
2486 address entry = (address) os::dll_lookup(sl_handle, jni_name);
2487 if (entry == nullptr) {
2488 // 2) Try JNI long style
2489 st.reset();
2490 char* long_name = NativeLookup::long_jni_name(method);
2491 guarantee(long_name != nullptr, "Illegal native method name encountered");
2492 os::print_jni_name_prefix_on(&st, args_size);
2493 st.print_raw(pure_name);
2494 st.print_raw(long_name);
2495 os::print_jni_name_suffix_on(&st, args_size);
2496 char* jni_long_name = st.as_string();
2497 entry = (address) os::dll_lookup(sl_handle, jni_long_name);
2498 if (entry == nullptr) {
2499 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [neither %s nor %s exist in %s]",
2500 method->name_and_sig_as_C_string(),
2501 jni_name, jni_long_name, sl_path));
2502 }
2503 }
2504
2505 if (method->has_native_function() && entry != method->native_function()) {
2506 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [cannot re-link from " PTR_FORMAT " to " PTR_FORMAT "]",
2507 method->name_and_sig_as_C_string(), p2i(method->native_function()), p2i(entry)));
2508 }
2509 method->set_native_function(entry, Method::native_bind_event_is_interesting);
2510 log_debug(jni, resolve)("[Dynamic-linking native method %s.%s ... JNI] @ " PTR_FORMAT,
2511 method->method_holder()->external_name(),
2512 method->name()->as_C_string(),
2513 p2i((void*) entry));
2514 }
2515 }
2516
2517 typeArrayOop info_oop = oopFactory::new_longArray(4, CHECK_0);
2518 jlongArray info = (jlongArray) JNIHandles::make_local(THREAD, info_oop);
2519 runtime->init_JavaVM_info(info, JVMCI_CHECK_0);
2520 return info;
2521 }
2522
2523 C2V_VMENTRY_PREFIX(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject c2vm))
2524 if (thread == nullptr || thread->libjvmci_runtime() == nullptr) {
2525 // Called from unattached JVMCI shared library thread
2526 return false;
2527 }
2528 if (thread->jni_environment() == env) {
2529 C2V_BLOCK(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject))
2530 JVMCITraceMark jtm("isCurrentThreadAttached");
2531 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2532 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2533 if (runtime == nullptr || !runtime->has_shared_library_javavm()) {
2534 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in isCurrentThreadAttached");
2535 }
2536 JNIEnv* peerEnv;
2537 return runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) == JNI_OK;
2538 }
2539 return true;
2540 C2V_END
2541
2542 C2V_VMENTRY_PREFIX(jlong, getCurrentJavaThread, (JNIEnv* env, jobject c2vm))
2543 if (thread == nullptr) {
2544 // Called from unattached JVMCI shared library thread
2545 return 0L;
2546 }
2547 return (jlong) p2i(thread);
2548 C2V_END
2549
2550 // Attaches a thread started in a JVMCI shared library to a JavaThread and JVMCI runtime.
2551 static void attachSharedLibraryThread(JNIEnv* env, jbyteArray name, jboolean as_daemon) {
2552 JavaVM* javaVM = nullptr;
2553 jint res = env->GetJavaVM(&javaVM);
2554 if (res != JNI_OK) {
2555 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Error getting shared library JavaVM from shared library JNIEnv: %d", res));
2556 }
2557 extern struct JavaVM_ main_vm;
2558 JNIEnv* hotspotEnv;
2559
2560 int name_len = env->GetArrayLength(name);
2561 char name_buf[64]; // Cannot use Resource heap as it requires a current thread
2562 int to_copy = MIN2(name_len, (int) sizeof(name_buf) - 1);
2563 env->GetByteArrayRegion(name, 0, to_copy, (jbyte*) name_buf);
2564 name_buf[to_copy] = '\0';
2565 JavaVMAttachArgs attach_args;
2566 attach_args.version = JNI_VERSION_1_2;
2567 attach_args.name = name_buf;
2568 attach_args.group = nullptr;
2569 res = as_daemon ? main_vm.AttachCurrentThreadAsDaemon((void**)&hotspotEnv, &attach_args) :
2570 main_vm.AttachCurrentThread((void**)&hotspotEnv, &attach_args);
2571 if (res != JNI_OK) {
2572 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Trying to attach thread returned %d", res));
2573 }
2574 JavaThread* thread = get_current_thread(false);
2575 const char* attach_error;
2576 {
2577 // Transition to VM
2578 JVMCI_VM_ENTRY_MARK
2579 attach_error = JVMCIRuntime::attach_shared_library_thread(thread, javaVM);
2580 // Transition back to Native
2581 }
2582 if (attach_error != nullptr) {
2583 JNI_THROW("attachCurrentThread", InternalError, attach_error);
2584 }
2585 }
2586
2587 C2V_VMENTRY_PREFIX(jboolean, attachCurrentThread, (JNIEnv* env, jobject c2vm, jbyteArray name, jboolean as_daemon, jlongArray javaVM_info))
2588 if (thread == nullptr) {
2589 attachSharedLibraryThread(env, name, as_daemon);
2590 return true;
2591 }
2592 if (thread->jni_environment() == env) {
2593 // Called from HotSpot
2594 C2V_BLOCK(jboolean, attachCurrentThread, (JNIEnv* env, jobject, jboolean))
2595 JVMCITraceMark jtm("attachCurrentThread");
2596 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2597
2598 JVMCIRuntime* runtime = JVMCI::compiler_runtime(thread);
2599 JNIEnv* peerJNIEnv;
2600 if (runtime->has_shared_library_javavm()) {
2601 if (runtime->GetEnv(thread, (void**)&peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2602 // Already attached
2603 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0);
2604 return false;
2605 }
2606 }
2607
2608 {
2609 // Ensure the JVMCI shared library runtime is initialized.
2610 bool jni_enomem_is_fatal = false;
2611 JVMCIEnv __peer_jvmci_env__(thread, false, jni_enomem_is_fatal, __FILE__, __LINE__);
2612 JVMCIEnv* peerJVMCIEnv = &__peer_jvmci_env__;
2613 if (peerJVMCIEnv->has_jni_enomem()) {
2614 JVMCI_THROW_MSG_0(OutOfMemoryError, "JNI_ENOMEM creating or attaching to libjvmci");
2615 }
2616
2617 HandleMark hm(thread);
2618 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(peerJVMCIEnv);
2619 if (peerJVMCIEnv->has_pending_exception()) {
2620 peerJVMCIEnv->describe_pending_exception(tty);
2621 }
2622 char* sl_path;
2623 if (JVMCI::get_shared_library(sl_path, false) == nullptr) {
2624 JVMCI_THROW_MSG_0(InternalError, "Error initializing JVMCI runtime");
2625 }
2626 }
2627
2628 JavaVMAttachArgs attach_args;
2629 attach_args.version = JNI_VERSION_1_2;
2630 attach_args.name = const_cast<char*>(thread->name());
2631 attach_args.group = nullptr;
2632 if (runtime->GetEnv(thread, (void**) &peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2633 return false;
2634 }
2635 jint res = as_daemon ? runtime->AttachCurrentThreadAsDaemon(thread, (void**) &peerJNIEnv, &attach_args) :
2636 runtime->AttachCurrentThread(thread, (void**) &peerJNIEnv, &attach_args);
2637
2638 if (res == JNI_OK) {
2639 guarantee(peerJNIEnv != nullptr, "must be");
2640 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0);
2641 JVMCI_event_1("attached to JavaVM[%d] for JVMCI runtime %d", runtime->get_shared_library_javavm_id(), runtime->id());
2642 return true;
2643 }
2644 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, attach_args.name));
2645 }
2646 // Called from JVMCI shared library
2647 return false;
2648 C2V_END
2649
2650 C2V_VMENTRY_PREFIX(jboolean, detachCurrentThread, (JNIEnv* env, jobject c2vm, jboolean release))
2651 if (thread == nullptr) {
2652 // Called from unattached JVMCI shared library thread
2653 JNI_THROW_("detachCurrentThread", IllegalStateException, "Cannot detach non-attached thread", false);
2654 }
2655 if (thread->jni_environment() == env) {
2656 // Called from HotSpot
2657 C2V_BLOCK(void, detachCurrentThread, (JNIEnv* env, jobject))
2658 JVMCITraceMark jtm("detachCurrentThread");
2659 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2660 requireInHotSpot("detachCurrentThread", JVMCI_CHECK_0);
2661 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2662 if (runtime == nullptr || !runtime->has_shared_library_javavm()) {
2663 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in detachCurrentThread");
2664 }
2665 JNIEnv* peerEnv;
2666
2667 if (runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) != JNI_OK) {
2668 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("Cannot detach non-attached thread: %s", thread->name()));
2669 }
2670 jint res = runtime->DetachCurrentThread(thread);
2671 if (res != JNI_OK) {
2672 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, thread->name()));
2673 }
2674 JVMCI_event_1("detached from JavaVM[%d] for JVMCI runtime %d",
2675 runtime->get_shared_library_javavm_id(), runtime->id());
2676 if (release) {
2677 return runtime->detach_thread(thread, "user thread detach");
2678 }
2679 } else {
2680 // Called from attached JVMCI shared library thread
2681 if (release) {
2682 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread cannot release JVMCI shared library JavaVM", false);
2683 }
2684 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2685 if (runtime == nullptr) {
2686 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread should have a JVMCI runtime", false);
2687 }
2688 {
2689 // Transition to VM
2690 C2V_BLOCK(jboolean, detachCurrentThread, (JNIEnv* env, jobject))
2691 // Cannot destroy shared library JavaVM as we're about to return to it.
2692 runtime->detach_thread(thread, "shared library thread detach", false);
2693 JVMCI_event_1("detaching JVMCI shared library thread from HotSpot JavaVM");
2694 // Transition back to Native
2695 }
2696 extern struct JavaVM_ main_vm;
2697 jint res = main_vm.DetachCurrentThread();
2698 if (res != JNI_OK) {
2699 JNI_THROW_("detachCurrentThread", InternalError, "Cannot detach non-attached thread", false);
2700 }
2701 }
2702 return false;
2703 C2V_END
2704
2705 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle, jboolean callPostTranslation))
2706 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2707 if (obj_handle == nullptr) {
2708 return 0L;
2709 }
2710 bool jni_enomem_is_fatal = false;
2711 JVMCIEnv __peer_jvmci_env__(thread, !JVMCIENV->is_hotspot(), jni_enomem_is_fatal, __FILE__, __LINE__);
2712 JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2713 JVMCIEnv* thisEnv = JVMCIENV;
2714 if (peerEnv->has_jni_enomem()) {
2715 JVMCI_THROW_MSG_0(OutOfMemoryError, "JNI_ENOMEM creating or attaching to libjvmci");
2716 }
2717
2718 JVMCIObject obj = thisEnv->wrap(obj_handle);
2719 JVMCIObject result;
2720 if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) {
2721 methodHandle method(THREAD, thisEnv->asMethod(obj));
2722 result = peerEnv->get_jvmci_method(method, JVMCI_CHECK_0);
2723 } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) {
2724 Klass* klass = thisEnv->asKlass(obj);
2725 JVMCIKlassHandle klass_handle(THREAD);
2726 klass_handle = klass;
2727 result = peerEnv->get_jvmci_type(klass_handle, JVMCI_CHECK_0);
2728 } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) {
2729 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0);
2730 result = peerEnv->get_jvmci_primitive_type(type);
2731 } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) ||
2732 thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) {
2733 Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0);
2734 result = peerEnv->get_object_constant(constant());
2735 } else if (thisEnv->isa_HotSpotNmethod(obj)) {
2736 if (peerEnv->is_hotspot()) {
2737 nmethod* nm = JVMCIENV->get_nmethod(obj);
2738 if (nm != nullptr) {
2739 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2740 if (data != nullptr) {
2741 // Only the mirror in the HotSpot heap is accessible
2742 // through JVMCINMethodData
2743 oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true);
2744 if (nmethod_mirror != nullptr) {
2745 result = HotSpotJVMCI::wrap(nmethod_mirror);
2746 }
2747 }
2748 }
2749 }
2750
2751 if (result.is_null()) {
2752 JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj);
2753 methodHandle mh(THREAD, thisEnv->asMethod(methodObject));
2754 jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj);
2755 jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj);
2756 JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj);
2757 const char* cstring = name_string.is_null() ? nullptr : thisEnv->as_utf8_string(name_string);
2758 // Create a new HotSpotNmethod instance in the peer runtime
2759 result = peerEnv->new_HotSpotNmethod(mh, cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0);
2760 nmethod* nm = JVMCIENV->get_nmethod(obj);
2761 if (result.is_null()) {
2762 // exception occurred (e.g. OOME) creating a new HotSpotNmethod
2763 } else if (nm == nullptr) {
2764 // nmethod must have been unloaded
2765 } else {
2766 // Link the new HotSpotNmethod to the nmethod
2767 peerEnv->initialize_installed_code(result, nm, JVMCI_CHECK_0);
2768 // Only HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime.
2769 if (peerEnv->is_hotspot()) {
2770 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2771 if (data == nullptr) {
2772 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot set HotSpotNmethod mirror for default nmethod");
2773 }
2774 if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != nullptr) {
2775 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod");
2776 }
2777 oop nmethod_mirror = HotSpotJVMCI::resolve(result);
2778 data->set_nmethod_mirror(nm, nmethod_mirror);
2779 }
2780 }
2781 }
2782 } else {
2783 JVMCI_THROW_MSG_0(IllegalArgumentException,
2784 err_msg("Cannot translate object of type: %s", thisEnv->klass_name(obj)));
2785 }
2786 if (callPostTranslation) {
2787 peerEnv->call_HotSpotJVMCIRuntime_postTranslation(result, JVMCI_CHECK_0);
2788 }
2789 // Propagate any exception that occurred while creating the translated object
2790 if (peerEnv->transfer_pending_exception(thread, thisEnv)) {
2791 return 0L;
2792 }
2793 return (jlong) peerEnv->make_global(result).as_jobject();
2794 }
2795
2796 C2V_VMENTRY_NULL(jobject, unhand, (JNIEnv* env, jobject, jlong obj_handle))
2797 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2798 if (obj_handle == 0L) {
2799 return nullptr;
2800 }
2801 jobject global_handle = (jobject) obj_handle;
2802 JVMCIObject global_handle_obj = JVMCIENV->wrap(global_handle);
2803 jobject result = JVMCIENV->make_local(global_handle_obj).as_jobject();
2804
2805 JVMCIENV->destroy_global(global_handle_obj);
2806 return result;
2807 }
2808
2809 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle))
2810 JVMCIObject code = JVMCIENV->wrap(code_handle);
2811 // Execute this operation for the side effect of updating the InstalledCode state
2812 JVMCIENV->get_nmethod(code);
2813 }
2814
2815 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2816 JVMCIObject code = JVMCIENV->wrap(code_handle);
2817 CodeBlob* cb = JVMCIENV->get_code_blob(code);
2818 if (cb == nullptr) {
2819 return nullptr;
2820 }
2821 // Make a resource copy of code before the allocation causes a safepoint
2822 int code_size = cb->code_size();
2823 jbyte* code_bytes = NEW_RESOURCE_ARRAY(jbyte, code_size);
2824 memcpy(code_bytes, (jbyte*) cb->code_begin(), code_size);
2825
2826 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2827 JVMCIENV->copy_bytes_from(code_bytes, result, 0, code_size);
2828 return JVMCIENV->get_jbyteArray(result);
2829 }
2830
2831 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
2832 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2833 methodHandle m(THREAD, UNPACK_PAIR(Method, method));
2834 oop executable;
2835 if (m->is_initializer()) {
2836 if (m->is_static_initializer()) {
2837 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2838 "Cannot create java.lang.reflect.Method for class initializer");
2839 }
2840 executable = Reflection::new_constructor(m, CHECK_NULL);
2841 } else {
2842 executable = Reflection::new_method(m, false, CHECK_NULL);
2843 }
2844 return JNIHandles::make_local(THREAD, executable);
2845 }
2846
2847 static InstanceKlass* check_field(Klass* klass, jint index, JVMCI_TRAPS) {
2848 if (!klass->is_instance_klass()) {
2849 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2850 err_msg("Expected non-primitive type, got %s", klass->external_name()));
2851 }
2852 InstanceKlass* iklass = InstanceKlass::cast(klass);
2853 if (index < 0 || index > iklass->total_fields_count()) {
2854 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2855 err_msg("Field index %d out of bounds for %s", index, klass->external_name()));
2856 }
2857 return iklass;
2858 }
2859
2860 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index))
2861 requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL);
2862 Klass* klass = UNPACK_PAIR(Klass, klass);
2863 InstanceKlass* iklass = check_field(klass, index, JVMCIENV);
2864 fieldDescriptor fd(iklass, index);
2865 oop reflected = Reflection::new_field(&fd, CHECK_NULL);
2866 return JNIHandles::make_local(THREAD, reflected);
2867 }
2868
2869 static jbyteArray get_encoded_annotation_data(InstanceKlass* holder, AnnotationArray* annotations_array, bool for_class,
2870 jint filter_length, jlong filter_klass_pointers,
2871 JavaThread* THREAD, JVMCIEnv* JVMCIENV) {
2872 // Get a ConstantPool object for annotation parsing
2873 Handle jcp = reflect_ConstantPool::create(CHECK_NULL);
2874 reflect_ConstantPool::set_cp(jcp(), holder->constants());
2875
2876 // load VMSupport
2877 Symbol* klass = vmSymbols::jdk_internal_vm_VMSupport();
2878 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK_NULL);
2879
2880 InstanceKlass* vm_support = InstanceKlass::cast(k);
2881 if (vm_support->should_be_initialized()) {
2882 vm_support->initialize(CHECK_NULL);
2883 }
2884
2885 typeArrayOop annotations_oop = Annotations::make_java_array(annotations_array, CHECK_NULL);
2886 typeArrayHandle annotations = typeArrayHandle(THREAD, annotations_oop);
2887
2888 InstanceKlass** filter = filter_length == 1 ?
2889 (InstanceKlass**) &filter_klass_pointers:
2890 (InstanceKlass**) filter_klass_pointers;
2891 objArrayOop filter_oop = oopFactory::new_objArray(vmClasses::Class_klass(), filter_length, CHECK_NULL);
2892 objArrayHandle filter_classes(THREAD, filter_oop);
2893 for (int i = 0; i < filter_length; i++) {
2894 filter_classes->obj_at_put(i, filter[i]->java_mirror());
2895 }
2896
2897 // invoke VMSupport.encodeAnnotations
2898 JavaValue result(T_OBJECT);
2899 JavaCallArguments args;
2900 args.push_oop(annotations);
2901 args.push_oop(Handle(THREAD, holder->java_mirror()));
2902 args.push_oop(jcp);
2903 args.push_int(for_class);
2904 args.push_oop(filter_classes);
2905 Symbol* signature = vmSymbols::encodeAnnotations_signature();
2906 JavaCalls::call_static(&result,
2907 vm_support,
2908 vmSymbols::encodeAnnotations_name(),
2909 signature,
2910 &args,
2911 CHECK_NULL);
2912
2913 oop res = result.get_oop();
2914 if (JVMCIENV->is_hotspot()) {
2915 return (jbyteArray) JNIHandles::make_local(THREAD, res);
2916 }
2917
2918 typeArrayOop ba = typeArrayOop(res);
2919 int ba_len = ba->length();
2920 jbyte* ba_buf = NEW_RESOURCE_ARRAY_IN_THREAD_RETURN_NULL(THREAD, jbyte, ba_len);
2921 if (ba_buf == nullptr) {
2922 JVMCI_THROW_MSG_NULL(InternalError,
2923 err_msg("could not allocate %d bytes", ba_len));
2924
2925 }
2926 memcpy(ba_buf, ba->byte_at_addr(0), ba_len);
2927 JVMCIPrimitiveArray ba_dest = JVMCIENV->new_byteArray(ba_len, JVMCI_CHECK_NULL);
2928 JVMCIENV->copy_bytes_from(ba_buf, ba_dest, 0, ba_len);
2929 return JVMCIENV->get_jbyteArray(ba_dest);
2930 }
2931
2932 C2V_VMENTRY_NULL(jbyteArray, getEncodedClassAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass),
2933 jobject filter, jint filter_length, jlong filter_klass_pointers))
2934 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass));
2935 return get_encoded_annotation_data(holder, holder->class_annotations(), true, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2936 C2V_END
2937
2938 C2V_VMENTRY_NULL(jbyteArray, getEncodedExecutableAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(method),
2939 jobject filter, jint filter_length, jlong filter_klass_pointers))
2940 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
2941 return get_encoded_annotation_data(method->method_holder(), method->annotations(), false, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2942 C2V_END
2943
2944 C2V_VMENTRY_NULL(jbyteArray, getEncodedFieldAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index,
2945 jobject filter, jint filter_length, jlong filter_klass_pointers))
2946 InstanceKlass* holder = check_field(InstanceKlass::cast(UNPACK_PAIR(Klass, klass)), index, JVMCIENV);
2947 fieldDescriptor fd(holder, index);
2948 return get_encoded_annotation_data(holder, fd.annotations(), false, filter_length, filter_klass_pointers, THREAD, JVMCIENV);
2949 C2V_END
2950
2951 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current))
2952 FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address);
2953 int result_length = 0;
2954 for (FailedSpeculation* fs = head; fs != nullptr; fs = fs->next()) {
2955 result_length++;
2956 }
2957 int current_length = 0;
2958 JVMCIObjectArray current_array = nullptr;
2959 if (current != nullptr) {
2960 current_array = JVMCIENV->wrap(current);
2961 current_length = JVMCIENV->get_length(current_array);
2962 if (current_length == result_length) {
2963 // No new failures
2964 return current;
2965 }
2966 }
2967 JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL);
2968 int result_index = 0;
2969 for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) {
2970 assert(fs != nullptr, "npe");
2971 JVMCIPrimitiveArray entry;
2972 if (result_index < current_length) {
2973 entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index);
2974 } else {
2975 entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL);
2976 JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len());
2977 }
2978 JVMCIENV->put_object_at(result, result_index++, entry);
2979 }
2980 return JVMCIENV->get_jobjectArray(result);
2981 }
2982
2983 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
2984 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
2985 MethodData* method_data = method->method_data();
2986 if (method_data == nullptr) {
2987 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
2988 method_data = MethodData::allocate(loader_data, method, CHECK_0);
2989 method->set_method_data(method_data);
2990 }
2991 return (jlong) method_data->get_failed_speculations_address();
2992 }
2993
2994 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address))
2995 FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address);
2996 }
2997
2998 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj))
2999 JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj);
3000 int speculation_len = JVMCIENV->get_length(speculation_handle);
3001 char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len);
3002 JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len);
3003 return FailedSpeculation::add_failed_speculation(nullptr, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len);
3004 }
3005
3006 C2V_VMENTRY(void, callSystemExit, (JNIEnv* env, jobject, jint status))
3007 JavaValue result(T_VOID);
3008 JavaCallArguments jargs(1);
3009 jargs.push_int(status);
3010 JavaCalls::call_static(&result,
3011 vmClasses::System_klass(),
3012 vmSymbols::exit_method_name(),
3013 vmSymbols::int_void_signature(),
3014 &jargs,
3015 CHECK);
3016 }
3017
3018 C2V_VMENTRY_0(jlong, ticksNow, (JNIEnv* env, jobject))
3019 return CompilerEvent::ticksNow();
3020 }
3021
3022 C2V_VMENTRY_0(jint, registerCompilerPhase, (JNIEnv* env, jobject, jstring jphase_name))
3023 #if INCLUDE_JFR
3024 JVMCIObject phase_name = JVMCIENV->wrap(jphase_name);
3025 const char *name = JVMCIENV->as_utf8_string(phase_name);
3026 return CompilerEvent::PhaseEvent::get_phase_id(name, true, true, true);
3027 #else
3028 return -1;
3029 #endif // !INCLUDE_JFR
3030 }
3031
3032 C2V_VMENTRY(void, notifyCompilerPhaseEvent, (JNIEnv* env, jobject, jlong startTime, jint phase, jint compileId, jint level))
3033 EventCompilerPhase event;
3034 if (event.should_commit()) {
3035 CompilerEvent::PhaseEvent::post(event, startTime, phase, compileId, level);
3036 }
3037 }
3038
3039 C2V_VMENTRY(void, notifyCompilerInliningEvent, (JNIEnv* env, jobject, jint compileId, ARGUMENT_PAIR(caller), ARGUMENT_PAIR(callee), jboolean succeeded, jstring jmessage, jint bci))
3040 EventCompilerInlining event;
3041 if (event.should_commit()) {
3042 Method* caller = UNPACK_PAIR(Method, caller);
3043 Method* callee = UNPACK_PAIR(Method, callee);
3044 JVMCIObject message = JVMCIENV->wrap(jmessage);
3045 CompilerEvent::InlineEvent::post(event, compileId, caller, callee, succeeded, JVMCIENV->as_utf8_string(message), bci);
3046 }
3047 }
3048
3049 C2V_VMENTRY(void, setThreadLocalObject, (JNIEnv* env, jobject, jint id, jobject value))
3050 requireInHotSpot("setThreadLocalObject", JVMCI_CHECK);
3051 if (id == 0) {
3052 thread->set_jvmci_reserved_oop0(JNIHandles::resolve(value));
3053 return;
3054 }
3055 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
3056 err_msg("%d is not a valid thread local id", id));
3057 }
3058
3059 C2V_VMENTRY_NULL(jobject, getThreadLocalObject, (JNIEnv* env, jobject, jint id))
3060 requireInHotSpot("getThreadLocalObject", JVMCI_CHECK_NULL);
3061 if (id == 0) {
3062 return JNIHandles::make_local(thread->get_jvmci_reserved_oop0());
3063 }
3064 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
3065 err_msg("%d is not a valid thread local id", id));
3066 }
3067
3068 C2V_VMENTRY(void, setThreadLocalLong, (JNIEnv* env, jobject, jint id, jlong value))
3069 requireInHotSpot("setThreadLocalLong", JVMCI_CHECK);
3070 if (id == 0) {
3071 thread->set_jvmci_reserved0(value);
3072 } else if (id == 1) {
3073 thread->set_jvmci_reserved1(value);
3074 } else {
3075 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
3076 err_msg("%d is not a valid thread local id", id));
3077 }
3078 }
3079
3080 C2V_VMENTRY_0(jlong, getThreadLocalLong, (JNIEnv* env, jobject, jint id))
3081 requireInHotSpot("getThreadLocalLong", JVMCI_CHECK_0);
3082 if (id == 0) {
3083 return thread->get_jvmci_reserved0();
3084 } else if (id == 1) {
3085 return thread->get_jvmci_reserved1();
3086 } else {
3087 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
3088 err_msg("%d is not a valid thread local id", id));
3089 }
3090 }
3091
3092 #define CC (char*) /*cast a literal from (const char*)*/
3093 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
3094
3095 #define STRING "Ljava/lang/String;"
3096 #define OBJECT "Ljava/lang/Object;"
3097 #define CLASS "Ljava/lang/Class;"
3098 #define OBJECTCONSTANT "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;"
3099 #define EXECUTABLE "Ljava/lang/reflect/Executable;"
3100 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;"
3101 #define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;"
3102 #define BYTECODE_FRAME "Ljdk/vm/ci/code/BytecodeFrame;"
3103 #define JAVACONSTANT "Ljdk/vm/ci/meta/JavaConstant;"
3104 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;"
3105 #define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
3106 #define FIELDINFO "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl$FieldInfo;"
3107 #define HS_RESOLVED_TYPE "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;"
3108 #define HS_INSTALLED_CODE "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;"
3109 #define HS_NMETHOD "Ljdk/vm/ci/hotspot/HotSpotNmethod;"
3110 #define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
3111 #define HS_CONFIG "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
3112 #define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
3113 #define HS_SPECULATION_LOG "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
3114 #define REFLECTION_EXECUTABLE "Ljava/lang/reflect/Executable;"
3115 #define REFLECTION_FIELD "Ljava/lang/reflect/Field;"
3116
3117 // Types wrapping VM pointers. The ...2 macro is for a pair: (wrapper, pointer)
3118 #define HS_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
3119 #define HS_METHOD2 "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;J"
3120 #define HS_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
3121 #define HS_KLASS2 "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;J"
3122 #define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
3123 #define HS_CONSTANT_POOL2 "Ljdk/vm/ci/hotspot/HotSpotConstantPool;J"
3124
3125 JNINativeMethod CompilerToVM::methods[] = {
3126 {CC "getBytecode", CC "(" HS_METHOD2 ")[B", FN_PTR(getBytecode)},
3127 {CC "getExceptionTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getExceptionTableStart)},
3128 {CC "getExceptionTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getExceptionTableLength)},
3129 {CC "findUniqueConcreteMethod", CC "(" HS_KLASS2 HS_METHOD2 ")" HS_METHOD, FN_PTR(findUniqueConcreteMethod)},
3130 {CC "getImplementor", CC "(" HS_KLASS2 ")" HS_KLASS, FN_PTR(getImplementor)},
3131 {CC "getStackTraceElement", CC "(" HS_METHOD2 "I)" STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)},
3132 {CC "methodIsIgnoredBySecurityStackWalk", CC "(" HS_METHOD2 ")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)},
3133 {CC "setNotInlinableOrCompilable", CC "(" HS_METHOD2 ")V", FN_PTR(setNotInlinableOrCompilable)},
3134 {CC "isCompilable", CC "(" HS_METHOD2 ")Z", FN_PTR(isCompilable)},
3135 {CC "hasNeverInlineDirective", CC "(" HS_METHOD2 ")Z", FN_PTR(hasNeverInlineDirective)},
3136 {CC "shouldInlineMethod", CC "(" HS_METHOD2 ")Z", FN_PTR(shouldInlineMethod)},
3137 {CC "lookupType", CC "(" STRING HS_KLASS2 "IZ)" HS_RESOLVED_TYPE, FN_PTR(lookupType)},
3138 {CC "lookupJClass", CC "(J)" HS_RESOLVED_TYPE, FN_PTR(lookupJClass)},
3139 {CC "getArrayType", CC "(C" HS_KLASS2 ")" HS_KLASS, FN_PTR(getArrayType)},
3140 {CC "lookupClass", CC "(" CLASS ")" HS_RESOLVED_TYPE, FN_PTR(lookupClass)},
3141 {CC "lookupNameInPool", CC "(" HS_CONSTANT_POOL2 "II)" STRING, FN_PTR(lookupNameInPool)},
3142 {CC "lookupNameAndTypeRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(lookupNameAndTypeRefIndexInPool)},
3143 {CC "lookupSignatureInPool", CC "(" HS_CONSTANT_POOL2 "II)" STRING, FN_PTR(lookupSignatureInPool)},
3144 {CC "lookupKlassRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(lookupKlassRefIndexInPool)},
3145 {CC "lookupKlassInPool", CC "(" HS_CONSTANT_POOL2 "I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)},
3146 {CC "lookupAppendixInPool", CC "(" HS_CONSTANT_POOL2 "I)" OBJECTCONSTANT, FN_PTR(lookupAppendixInPool)},
3147 {CC "lookupMethodInPool", CC "(" HS_CONSTANT_POOL2 "IB" HS_METHOD2 ")" HS_METHOD, FN_PTR(lookupMethodInPool)},
3148 {CC "lookupConstantInPool", CC "(" HS_CONSTANT_POOL2 "IZ)" JAVACONSTANT, FN_PTR(lookupConstantInPool)},
3149 {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(constantPoolRemapInstructionOperandFromCache)},
3150 {CC "resolveBootstrapMethod", CC "(" HS_CONSTANT_POOL2 "I)[" OBJECT, FN_PTR(resolveBootstrapMethod)},
3151 {CC "getUncachedStringInPool", CC "(" HS_CONSTANT_POOL2 "I)" JAVACONSTANT, FN_PTR(getUncachedStringInPool)},
3152 {CC "resolveTypeInPool", CC "(" HS_CONSTANT_POOL2 "I)" HS_KLASS, FN_PTR(resolveTypeInPool)},
3153 {CC "resolveFieldInPool", CC "(" HS_CONSTANT_POOL2 "I" HS_METHOD2 "B[I)" HS_KLASS, FN_PTR(resolveFieldInPool)},
3154 {CC "decodeFieldIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(decodeFieldIndexToCPIndex)},
3155 {CC "decodeIndyIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "IZ)I", FN_PTR(decodeIndyIndexToCPIndex)},
3156 {CC "resolveInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "I)V", FN_PTR(resolveInvokeHandleInPool)},
3157 {CC "isResolvedInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(isResolvedInvokeHandleInPool)},
3158 {CC "resolveMethod", CC "(" HS_KLASS2 HS_METHOD2 HS_KLASS2 ")" HS_METHOD, FN_PTR(resolveMethod)},
3159 {CC "getSignaturePolymorphicHolders", CC "()[" STRING, FN_PTR(getSignaturePolymorphicHolders)},
3160 {CC "getVtableIndexForInterfaceMethod", CC "(" HS_KLASS2 HS_METHOD2 ")I", FN_PTR(getVtableIndexForInterfaceMethod)},
3161 {CC "getClassInitializer", CC "(" HS_KLASS2 ")" HS_METHOD, FN_PTR(getClassInitializer)},
3162 {CC "hasFinalizableSubclass", CC "(" HS_KLASS2 ")Z", FN_PTR(hasFinalizableSubclass)},
3163 {CC "getMaxCallTargetOffset", CC "(J)J", FN_PTR(getMaxCallTargetOffset)},
3164 {CC "asResolvedJavaMethod", CC "(" EXECUTABLE ")" HS_METHOD, FN_PTR(asResolvedJavaMethod)},
3165 {CC "getResolvedJavaMethod", CC "(" OBJECTCONSTANT "J)" HS_METHOD, FN_PTR(getResolvedJavaMethod)},
3166 {CC "getConstantPool", CC "(" OBJECT "JZ)" HS_CONSTANT_POOL, FN_PTR(getConstantPool)},
3167 {CC "getResolvedJavaType0", CC "(Ljava/lang/Object;JZ)" HS_KLASS, FN_PTR(getResolvedJavaType0)},
3168 {CC "readConfiguration", CC "()[" OBJECT, FN_PTR(readConfiguration)},
3169 {CC "installCode0", CC "(JJZ" HS_COMPILED_CODE "[" OBJECT INSTALLED_CODE "J[B)I", FN_PTR(installCode0)},
3170 {CC "getInstallCodeFlags", CC "()I", FN_PTR(getInstallCodeFlags)},
3171 {CC "resetCompilationStatistics", CC "()V", FN_PTR(resetCompilationStatistics)},
3172 {CC "disassembleCodeBlob", CC "(" INSTALLED_CODE ")" STRING, FN_PTR(disassembleCodeBlob)},
3173 {CC "executeHotSpotNmethod", CC "([" OBJECT HS_NMETHOD ")" OBJECT, FN_PTR(executeHotSpotNmethod)},
3174 {CC "getLineNumberTable", CC "(" HS_METHOD2 ")[J", FN_PTR(getLineNumberTable)},
3175 {CC "getLocalVariableTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getLocalVariableTableStart)},
3176 {CC "getLocalVariableTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getLocalVariableTableLength)},
3177 {CC "reprofile", CC "(" HS_METHOD2 ")V", FN_PTR(reprofile)},
3178 {CC "invalidateHotSpotNmethod", CC "(" HS_NMETHOD "Z)V", FN_PTR(invalidateHotSpotNmethod)},
3179 {CC "collectCounters", CC "()[J", FN_PTR(collectCounters)},
3180 {CC "getCountersSize", CC "()I", FN_PTR(getCountersSize)},
3181 {CC "setCountersSize", CC "(I)Z", FN_PTR(setCountersSize)},
3182 {CC "allocateCompileId", CC "(" HS_METHOD2 "I)I", FN_PTR(allocateCompileId)},
3183 {CC "isMature", CC "(J)Z", FN_PTR(isMature)},
3184 {CC "hasCompiledCodeForOSR", CC "(" HS_METHOD2 "II)Z", FN_PTR(hasCompiledCodeForOSR)},
3185 {CC "getSymbol", CC "(J)" STRING, FN_PTR(getSymbol)},
3186 {CC "getSignatureName", CC "(J)" STRING, FN_PTR(getSignatureName)},
3187 {CC "iterateFrames", CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT, FN_PTR(iterateFrames)},
3188 {CC "materializeVirtualObjects", CC "(" HS_STACK_FRAME_REF "Z)V", FN_PTR(materializeVirtualObjects)},
3189 {CC "shouldDebugNonSafepoints", CC "()Z", FN_PTR(shouldDebugNonSafepoints)},
3190 {CC "writeDebugOutput", CC "(JIZ)V", FN_PTR(writeDebugOutput)},
3191 {CC "flushDebugOutput", CC "()V", FN_PTR(flushDebugOutput)},
3192 {CC "methodDataProfileDataSize", CC "(JI)I", FN_PTR(methodDataProfileDataSize)},
3193 {CC "methodDataExceptionSeen", CC "(JI)I", FN_PTR(methodDataExceptionSeen)},
3194 {CC "interpreterFrameSize", CC "(" BYTECODE_FRAME ")I", FN_PTR(interpreterFrameSize)},
3195 {CC "compileToBytecode", CC "(" OBJECTCONSTANT ")V", FN_PTR(compileToBytecode)},
3196 {CC "getFlagValue", CC "(" STRING ")" OBJECT, FN_PTR(getFlagValue)},
3197 {CC "getInterfaces", CC "(" HS_KLASS2 ")[" HS_KLASS, FN_PTR(getInterfaces)},
3198 {CC "getComponentType", CC "(" HS_KLASS2 ")" HS_RESOLVED_TYPE, FN_PTR(getComponentType)},
3199 {CC "ensureInitialized", CC "(" HS_KLASS2 ")V", FN_PTR(ensureInitialized)},
3200 {CC "ensureLinked", CC "(" HS_KLASS2 ")V", FN_PTR(ensureLinked)},
3201 {CC "getIdentityHashCode", CC "(" OBJECTCONSTANT ")I", FN_PTR(getIdentityHashCode)},
3202 {CC "isInternedString", CC "(" OBJECTCONSTANT ")Z", FN_PTR(isInternedString)},
3203 {CC "unboxPrimitive", CC "(" OBJECTCONSTANT ")" OBJECT, FN_PTR(unboxPrimitive)},
3204 {CC "boxPrimitive", CC "(" OBJECT ")" OBJECTCONSTANT, FN_PTR(boxPrimitive)},
3205 {CC "getDeclaredConstructors", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredConstructors)},
3206 {CC "getDeclaredMethods", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredMethods)},
3207 {CC "getDeclaredFieldsInfo", CC "(" HS_KLASS2 ")[" FIELDINFO, FN_PTR(getDeclaredFieldsInfo)},
3208 {CC "readStaticFieldValue", CC "(" HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readStaticFieldValue)},
3209 {CC "readFieldValue", CC "(" OBJECTCONSTANT HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readFieldValue)},
3210 {CC "isInstance", CC "(" HS_KLASS2 OBJECTCONSTANT ")Z", FN_PTR(isInstance)},
3211 {CC "isAssignableFrom", CC "(" HS_KLASS2 HS_KLASS2 ")Z", FN_PTR(isAssignableFrom)},
3212 {CC "isTrustedForIntrinsics", CC "(" HS_KLASS2 ")Z", FN_PTR(isTrustedForIntrinsics)},
3213 {CC "asJavaType", CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE, FN_PTR(asJavaType)},
3214 {CC "asString", CC "(" OBJECTCONSTANT ")" STRING, FN_PTR(asString)},
3215 {CC "equals", CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z", FN_PTR(equals)},
3216 {CC "getJavaMirror", CC "(" HS_KLASS2 ")" OBJECTCONSTANT, FN_PTR(getJavaMirror)},
3217 {CC "getArrayLength", CC "(" OBJECTCONSTANT ")I", FN_PTR(getArrayLength)},
3218 {CC "readArrayElement", CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;", FN_PTR(readArrayElement)},
3219 {CC "arrayBaseOffset", CC "(C)I", FN_PTR(arrayBaseOffset)},
3220 {CC "arrayIndexScale", CC "(C)I", FN_PTR(arrayIndexScale)},
3221 {CC "releaseClearedOopHandles", CC "()V", FN_PTR(releaseClearedOopHandles)},
3222 {CC "registerNativeMethods", CC "(" CLASS ")[J", FN_PTR(registerNativeMethods)},
3223 {CC "isCurrentThreadAttached", CC "()Z", FN_PTR(isCurrentThreadAttached)},
3224 {CC "getCurrentJavaThread", CC "()J", FN_PTR(getCurrentJavaThread)},
3225 {CC "attachCurrentThread", CC "([BZ[J)Z", FN_PTR(attachCurrentThread)},
3226 {CC "detachCurrentThread", CC "(Z)Z", FN_PTR(detachCurrentThread)},
3227 {CC "translate", CC "(" OBJECT "Z)J", FN_PTR(translate)},
3228 {CC "unhand", CC "(J)" OBJECT, FN_PTR(unhand)},
3229 {CC "updateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(updateHotSpotNmethod)},
3230 {CC "getCode", CC "(" HS_INSTALLED_CODE ")[B", FN_PTR(getCode)},
3231 {CC "asReflectionExecutable", CC "(" HS_METHOD2 ")" REFLECTION_EXECUTABLE, FN_PTR(asReflectionExecutable)},
3232 {CC "asReflectionField", CC "(" HS_KLASS2 "I)" REFLECTION_FIELD, FN_PTR(asReflectionField)},
3233 {CC "getEncodedClassAnnotationData", CC "(" HS_KLASS2 OBJECT "IJ)[B", FN_PTR(getEncodedClassAnnotationData)},
3234 {CC "getEncodedExecutableAnnotationData", CC "(" HS_METHOD2 OBJECT "IJ)[B", FN_PTR(getEncodedExecutableAnnotationData)},
3235 {CC "getEncodedFieldAnnotationData", CC "(" HS_KLASS2 "I" OBJECT "IJ)[B", FN_PTR(getEncodedFieldAnnotationData)},
3236 {CC "getFailedSpeculations", CC "(J[[B)[[B", FN_PTR(getFailedSpeculations)},
3237 {CC "getFailedSpeculationsAddress", CC "(" HS_METHOD2 ")J", FN_PTR(getFailedSpeculationsAddress)},
3238 {CC "releaseFailedSpeculations", CC "(J)V", FN_PTR(releaseFailedSpeculations)},
3239 {CC "addFailedSpeculation", CC "(J[B)Z", FN_PTR(addFailedSpeculation)},
3240 {CC "callSystemExit", CC "(I)V", FN_PTR(callSystemExit)},
3241 {CC "ticksNow", CC "()J", FN_PTR(ticksNow)},
3242 {CC "getThreadLocalObject", CC "(I)" OBJECT, FN_PTR(getThreadLocalObject)},
3243 {CC "setThreadLocalObject", CC "(I" OBJECT ")V", FN_PTR(setThreadLocalObject)},
3244 {CC "getThreadLocalLong", CC "(I)J", FN_PTR(getThreadLocalLong)},
3245 {CC "setThreadLocalLong", CC "(IJ)V", FN_PTR(setThreadLocalLong)},
3246 {CC "registerCompilerPhase", CC "(" STRING ")I", FN_PTR(registerCompilerPhase)},
3247 {CC "notifyCompilerPhaseEvent", CC "(JIII)V", FN_PTR(notifyCompilerPhaseEvent)},
3248 {CC "notifyCompilerInliningEvent", CC "(I" HS_METHOD2 HS_METHOD2 "ZLjava/lang/String;I)V", FN_PTR(notifyCompilerInliningEvent)},
3249 };
3250
3251 int CompilerToVM::methods_count() {
3252 return sizeof(methods) / sizeof(JNINativeMethod);
3253 }