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/linkResolver.hpp"
37 #include "interpreter/bytecodeStream.hpp"
38 #include "jfr/jfrEvents.hpp"
39 #include "jvmci/jvmciCompilerToVM.hpp"
40 #include "jvmci/jvmciCodeInstaller.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/instanceMirrorKlass.hpp"
48 #include "oops/instanceKlass.inline.hpp"
49 #include "oops/method.inline.hpp"
50 #include "oops/typeArrayOop.inline.hpp"
51 #include "prims/jvmtiExport.hpp"
52 #include "prims/methodHandles.hpp"
53 #include "prims/nativeLookup.hpp"
54 #include "runtime/atomic.hpp"
55 #include "runtime/deoptimization.hpp"
56 #include "runtime/fieldDescriptor.inline.hpp"
57 #include "runtime/frame.inline.hpp"
58 #include "runtime/globals_extension.hpp"
59 #include "runtime/interfaceSupport.inline.hpp"
60 #include "runtime/jniHandles.inline.hpp"
61 #include "runtime/reflectionUtils.hpp"
62 #include "runtime/stackFrameStream.inline.hpp"
63 #include "runtime/timerTrace.hpp"
64 #include "runtime/vframe_hp.hpp"
65 #include "runtime/vframe.inline.hpp"
66 #if INCLUDE_JFR
67 #include "jfr/jfr.hpp"
68 #endif
69
70 JVMCIKlassHandle::JVMCIKlassHandle(Thread* thread, Klass* klass) {
71 _thread = thread;
72 _klass = klass;
73 if (klass != nullptr) {
74 _holder = Handle(_thread, klass->klass_holder());
75 }
76 }
77
78 JVMCIKlassHandle& JVMCIKlassHandle::operator=(Klass* klass) {
79 _klass = klass;
80 if (klass != nullptr) {
81 _holder = Handle(_thread, klass->klass_holder());
82 }
83 return *this;
84 }
85
86 static void requireInHotSpot(const char* caller, JVMCI_TRAPS) {
87 if (!JVMCIENV->is_hotspot()) {
88 JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot call %s from JVMCI shared library", caller));
89 }
90 }
91
92 class JVMCITraceMark : public StackObj {
93 const char* _msg;
94 public:
95 JVMCITraceMark(const char* msg) {
96 _msg = msg;
97 JVMCI_event_2("Enter %s", _msg);
98 }
99 ~JVMCITraceMark() {
100 JVMCI_event_2(" Exit %s", _msg);
101 }
102 };
103
104
105 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) {
106 assert(_index < _args->length(), "out of bounds");
107 oop arg=((objArrayOop) (_args))->obj_at(_index++);
108 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
109 return Handle(Thread::current(), arg);
110 }
111
112 // Bring the JVMCI compiler thread into the VM state.
113 #define JVMCI_VM_ENTRY_MARK \
114 MACOS_AARCH64_ONLY(ThreadWXEnable __wx(WXWrite, thread)); \
115 ThreadInVMfromNative __tiv(thread); \
116 HandleMarkCleaner __hm(thread); \
117 JavaThread* THREAD = thread; \
118 debug_only(VMNativeEntryWrapper __vew;)
119
120 // Native method block that transitions current thread to '_thread_in_vm'.
121 #define C2V_BLOCK(result_type, name, signature) \
122 JVMCI_VM_ENTRY_MARK; \
123 ResourceMark rm; \
124 JNI_JVMCIENV(JVMCI::compilation_tick(thread), env);
125
126 static JavaThread* get_current_thread(bool allow_null=true) {
127 Thread* thread = Thread::current_or_null_safe();
128 if (thread == nullptr) {
129 assert(allow_null, "npe");
130 return nullptr;
131 }
132 return JavaThread::cast(thread);
133 }
134
135 // Entry to native method implementation that transitions
136 // current thread to '_thread_in_vm'.
137 #define C2V_VMENTRY(result_type, name, signature) \
138 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
139 JavaThread* thread = get_current_thread(); \
140 if (thread == nullptr) { \
141 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
142 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
143 return; \
144 } \
145 C2V_BLOCK(result_type, name, signature) \
146 JVMCITraceMark jtm("CompilerToVM::" #name);
147
148 #define C2V_VMENTRY_(result_type, name, signature, result) \
149 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
150 JavaThread* thread = get_current_thread(); \
151 if (thread == nullptr) { \
152 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
153 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
154 return result; \
155 } \
156 C2V_BLOCK(result_type, name, signature) \
157 JVMCITraceMark jtm("CompilerToVM::" #name);
158
159 #define C2V_VMENTRY_NULL(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, nullptr)
160 #define C2V_VMENTRY_0(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, 0)
161
162 // Entry to native method implementation that does not transition
163 // current thread to '_thread_in_vm'.
164 #define C2V_VMENTRY_PREFIX(result_type, name, signature) \
165 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
166 JavaThread* thread = get_current_thread();
167
168 #define C2V_END }
169
170 #define JNI_THROW(caller, name, msg) do { \
171 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
172 if (__throw_res != JNI_OK) { \
173 tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \
174 } \
175 return; \
176 } while (0);
177
178 #define JNI_THROW_(caller, name, msg, result) do { \
179 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
180 if (__throw_res != JNI_OK) { \
181 tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \
182 } \
183 return result; \
184 } while (0)
185
186 jobjectArray readConfiguration0(JNIEnv *env, JVMCI_TRAPS);
187
188 C2V_VMENTRY_NULL(jobjectArray, readConfiguration, (JNIEnv* env))
189 jobjectArray config = readConfiguration0(env, JVMCI_CHECK_NULL);
190 return config;
191 }
192
193 C2V_VMENTRY_NULL(jobject, getFlagValue, (JNIEnv* env, jobject c2vm, jobject name_handle))
194 #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();
195 #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();
196 JVMCIObject name = JVMCIENV->wrap(name_handle);
197 if (name.is_null()) {
198 JVMCI_THROW_NULL(NullPointerException);
199 }
200 const char* cstring = JVMCIENV->as_utf8_string(name);
201 const JVMFlag* flag = JVMFlag::find_declared_flag(cstring);
202 if (flag == nullptr) {
203 return c2vm;
204 }
205 if (flag->is_bool()) {
206 jvalue prim;
207 prim.z = flag->get_bool();
208 JVMCIObject box = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL);
209 return JVMCIENV->get_jobject(box);
210 } else if (flag->is_ccstr()) {
211 JVMCIObject value = JVMCIENV->create_string(flag->get_ccstr(), JVMCI_CHECK_NULL);
212 return JVMCIENV->get_jobject(value);
213 } else if (flag->is_intx()) {
214 RETURN_BOXED_LONG(flag->get_intx());
215 } else if (flag->is_int()) {
216 RETURN_BOXED_LONG(flag->get_int());
217 } else if (flag->is_uint()) {
218 RETURN_BOXED_LONG(flag->get_uint());
219 } else if (flag->is_uint64_t()) {
220 RETURN_BOXED_LONG(flag->get_uint64_t());
221 } else if (flag->is_size_t()) {
222 RETURN_BOXED_LONG(flag->get_size_t());
223 } else if (flag->is_uintx()) {
224 RETURN_BOXED_LONG(flag->get_uintx());
225 } else if (flag->is_double()) {
226 RETURN_BOXED_DOUBLE(flag->get_double());
227 } else {
228 JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->name(), flag->type_string());
229 }
230 #undef RETURN_BOXED_LONG
231 #undef RETURN_BOXED_DOUBLE
232 C2V_END
233
234 // Macros for argument pairs representing a wrapper object and its wrapped VM pointer
235 #define ARGUMENT_PAIR(name) jobject name ## _obj, jlong name ## _pointer
236 #define UNPACK_PAIR(type, name) ((type*) name ## _pointer)
237
238 C2V_VMENTRY_NULL(jbyteArray, getBytecode, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
239 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
240
241 int code_size = method->code_size();
242 jbyte* reconstituted_code = NEW_RESOURCE_ARRAY(jbyte, code_size);
243
244 guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
245 // iterate over all bytecodes and replace non-Java bytecodes
246
247 for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
248 Bytecodes::Code code = s.code();
249 Bytecodes::Code raw_code = s.raw_code();
250 int bci = s.bci();
251 int len = s.instruction_size();
252
253 // Restore original byte code.
254 reconstituted_code[bci] = (jbyte) (s.is_wide()? Bytecodes::_wide : code);
255 if (len > 1) {
256 memcpy(reconstituted_code + (bci + 1), s.bcp()+1, len-1);
257 }
258
259 if (len > 1) {
260 // Restore the big-endian constant pool indexes.
261 // Cf. Rewriter::scan_method
262 switch (code) {
263 case Bytecodes::_getstatic:
264 case Bytecodes::_putstatic:
265 case Bytecodes::_getfield:
266 case Bytecodes::_putfield:
267 case Bytecodes::_invokevirtual:
268 case Bytecodes::_invokespecial:
269 case Bytecodes::_invokestatic:
270 case Bytecodes::_invokeinterface:
271 case Bytecodes::_invokehandle: {
272 int cp_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
273 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
274 break;
275 }
276
277 case Bytecodes::_invokedynamic: {
278 int cp_index = Bytes::get_native_u4((address) reconstituted_code + (bci + 1));
279 Bytes::put_Java_u4((address) reconstituted_code + (bci + 1), (u4) cp_index);
280 break;
281 }
282
283 default:
284 break;
285 }
286
287 // Not all ldc byte code are rewritten.
288 switch (raw_code) {
289 case Bytecodes::_fast_aldc: {
290 int cpc_index = reconstituted_code[bci + 1] & 0xff;
291 int cp_index = method->constants()->object_to_cp_index(cpc_index);
292 assert(cp_index < method->constants()->length(), "sanity check");
293 reconstituted_code[bci + 1] = (jbyte) cp_index;
294 break;
295 }
296
297 case Bytecodes::_fast_aldc_w: {
298 int cpc_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
299 int cp_index = method->constants()->object_to_cp_index(cpc_index);
300 assert(cp_index < method->constants()->length(), "sanity check");
301 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
302 break;
303 }
304
305 default:
306 break;
307 }
308 }
309 }
310
311 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
312 JVMCIENV->copy_bytes_from(reconstituted_code, result, 0, code_size);
313 return JVMCIENV->get_jbyteArray(result);
314 C2V_END
315
316 C2V_VMENTRY_0(jint, getExceptionTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
317 Method* method = UNPACK_PAIR(Method, method);
318 return method->exception_table_length();
319 C2V_END
320
321 C2V_VMENTRY_0(jlong, getExceptionTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
322 Method* method = UNPACK_PAIR(Method, method);
323 if (method->exception_table_length() == 0) {
324 return 0L;
325 }
326 return (jlong) (address) method->exception_table_start();
327 C2V_END
328
329 C2V_VMENTRY_NULL(jobject, asResolvedJavaMethod, (JNIEnv* env, jobject, jobject executable_handle))
330 requireInHotSpot("asResolvedJavaMethod", JVMCI_CHECK_NULL);
331 oop executable = JNIHandles::resolve(executable_handle);
332 oop mirror = nullptr;
333 int slot = 0;
334
335 if (executable->klass() == vmClasses::reflect_Constructor_klass()) {
336 mirror = java_lang_reflect_Constructor::clazz(executable);
337 slot = java_lang_reflect_Constructor::slot(executable);
338 } else {
339 assert(executable->klass() == vmClasses::reflect_Method_klass(), "wrong type");
340 mirror = java_lang_reflect_Method::clazz(executable);
341 slot = java_lang_reflect_Method::slot(executable);
342 }
343 Klass* holder = java_lang_Class::as_Klass(mirror);
344 methodHandle method (THREAD, InstanceKlass::cast(holder)->method_with_idnum(slot));
345 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
346 return JVMCIENV->get_jobject(result);
347 }
348
349 C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset))
350 Method* method = nullptr;
351 JVMCIObject base_object = JVMCIENV->wrap(base);
352 if (base_object.is_null()) {
353 method = *((Method**)(offset));
354 } else {
355 Handle obj = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
356 if (obj->is_a(vmClasses::ResolvedMethodName_klass())) {
357 method = (Method*) (intptr_t) obj->long_field(offset);
358 } else {
359 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", obj->klass()->external_name()));
360 }
361 }
362 if (method == nullptr) {
363 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
364 }
365 assert (method->is_method(), "invalid read");
366 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, method), JVMCI_CHECK_NULL);
367 return JVMCIENV->get_jobject(result);
368 }
369
370 C2V_VMENTRY_NULL(jobject, getConstantPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass_or_method), jboolean is_klass))
371 ConstantPool* cp = nullptr;
372 if (UNPACK_PAIR(address, klass_or_method) == 0) {
373 JVMCI_THROW_NULL(NullPointerException);
374 }
375 if (!is_klass) {
376 cp = (UNPACK_PAIR(Method, klass_or_method))->constMethod()->constants();
377 } else {
378 cp = InstanceKlass::cast(UNPACK_PAIR(Klass, klass_or_method))->constants();
379 }
380
381 JVMCIObject result = JVMCIENV->get_jvmci_constant_pool(constantPoolHandle(THREAD, cp), JVMCI_CHECK_NULL);
382 return JVMCIENV->get_jobject(result);
383 }
384
385 C2V_VMENTRY_NULL(jobject, getResolvedJavaType0, (JNIEnv* env, jobject, jobject base, jlong offset, jboolean compressed))
386 JVMCIKlassHandle klass(THREAD);
387 JVMCIObject base_object = JVMCIENV->wrap(base);
388 jlong base_address = 0;
389 if (base_object.is_non_null() && offset == oopDesc::klass_offset_in_bytes()) {
390 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
391 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
392 klass = base_oop->klass();
393 } else {
394 assert(false, "What types are we actually expecting here?");
395 }
396 } else if (!compressed) {
397 if (base_object.is_non_null()) {
398 if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(base_object)) {
399 base_address = (intptr_t) JVMCIENV->asMethod(base_object);
400 } else if (JVMCIENV->isa_HotSpotConstantPool(base_object)) {
401 base_address = (intptr_t) JVMCIENV->asConstantPool(base_object);
402 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
403 base_address = (intptr_t) JVMCIENV->asKlass(base_object);
404 } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
405 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
406 if (base_oop->is_a(vmClasses::Class_klass())) {
407 base_address = cast_from_oop<jlong>(base_oop());
408 }
409 }
410 if (base_address == 0) {
411 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
412 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", JVMCIENV->klass_name(base_object), offset, compressed ? "true" : "false"));
413 }
414 }
415 klass = *((Klass**) (intptr_t) (base_address + offset));
416 } else {
417 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
418 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s",
419 base_object.is_non_null() ? JVMCIENV->klass_name(base_object) : "null",
420 offset, compressed ? "true" : "false"));
421 }
422 assert (klass == nullptr || klass->is_klass(), "invalid read");
423 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
424 return JVMCIENV->get_jobject(result);
425 }
426
427 C2V_VMENTRY_NULL(jobject, findUniqueConcreteMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method)))
428 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
429 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass));
430 if (holder->is_interface()) {
431 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Interface %s should be handled in Java code", holder->external_name()));
432 }
433 if (method->can_be_statically_bound()) {
434 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()));
435 }
436
437 methodHandle ucm;
438 {
439 MutexLocker locker(Compile_lock);
440 ucm = methodHandle(THREAD, Dependencies::find_unique_concrete_method(holder, method()));
441 }
442 JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL);
443 return JVMCIENV->get_jobject(result);
444 C2V_END
445
446 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
447 Klass* klass = UNPACK_PAIR(Klass, klass);
448 if (!klass->is_interface()) {
449 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
450 err_msg("Expected interface type, got %s", klass->external_name()));
451 }
452 InstanceKlass* iklass = InstanceKlass::cast(klass);
453 JVMCIKlassHandle handle(THREAD);
454 {
455 // Need Compile_lock around implementor()
456 MutexLocker locker(Compile_lock);
457 handle = iklass->implementor();
458 }
459 JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
460 return JVMCIENV->get_jobject(implementor);
461 C2V_END
462
463 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
464 Method* method = UNPACK_PAIR(Method, method);
465 return method->is_ignored_by_security_stack_walk();
466 C2V_END
467
468 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
469 Method* method = UNPACK_PAIR(Method, method);
470 // Skip redefined methods
471 if (method->is_old()) {
472 return false;
473 }
474 return !method->is_not_compilable(CompLevel_full_optimization);
475 C2V_END
476
477 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
478 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
479 return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
480 C2V_END
481
482 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
483 methodHandle method (THREAD, UNPACK_PAIR(Method, method));
484 return CompilerOracle::should_inline(method) || method->force_inline();
485 C2V_END
486
487 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, ARGUMENT_PAIR(accessing_klass), jboolean resolve))
488 JVMCIObject name = JVMCIENV->wrap(jname);
489 const char* str = JVMCIENV->as_utf8_string(name);
490 TempNewSymbol class_name = SymbolTable::new_symbol(str);
491
492 if (class_name->utf8_length() <= 1) {
493 JVMCI_THROW_MSG_0(InternalError, err_msg("Primitive type %s should be handled in Java code", class_name->as_C_string()));
494 }
495
496 JVMCIKlassHandle resolved_klass(THREAD);
497 Klass* accessing_klass = UNPACK_PAIR(Klass, accessing_klass);
498 Handle class_loader;
499 Handle protection_domain;
500 if (accessing_klass != nullptr) {
501 class_loader = Handle(THREAD, accessing_klass->class_loader());
502 protection_domain = Handle(THREAD, accessing_klass->protection_domain());
503 } else {
504 // Use the System class loader
505 class_loader = Handle(THREAD, SystemDictionary::java_system_loader());
506 JVMCIENV->runtime()->initialize(JVMCI_CHECK_NULL);
507 }
508
509 if (resolve) {
510 resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_NULL);
511 if (resolved_klass == nullptr) {
512 JVMCI_THROW_MSG_NULL(ClassNotFoundException, str);
513 }
514 } else {
515 if (Signature::has_envelope(class_name)) {
516 // This is a name from a signature. Strip off the trimmings.
517 // Call recursive to keep scope of strippedsym.
518 TempNewSymbol strippedsym = Signature::strip_envelope(class_name);
519 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym,
520 class_loader,
521 protection_domain);
522 } else if (Signature::is_array(class_name)) {
523 SignatureStream ss(class_name, false);
524 int ndim = ss.skip_array_prefix();
525 if (ss.type() == T_OBJECT) {
526 Symbol* strippedsym = ss.as_symbol();
527 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym,
528 class_loader,
529 protection_domain);
530 if (!resolved_klass.is_null()) {
531 resolved_klass = resolved_klass->array_klass(ndim, CHECK_NULL);
532 }
533 } else {
534 resolved_klass = TypeArrayKlass::cast(Universe::typeArrayKlassObj(ss.type()))->array_klass(ndim, CHECK_NULL);
535 }
536 } else {
537 resolved_klass = SystemDictionary::find_instance_klass(THREAD, class_name,
538 class_loader,
539 protection_domain);
540 }
541 }
542 JVMCIObject result = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
543 return JVMCIENV->get_jobject(result);
544 C2V_END
545
546 C2V_VMENTRY_NULL(jobject, getArrayType, (JNIEnv* env, jobject, jchar type_char, ARGUMENT_PAIR(klass)))
547 JVMCIKlassHandle array_klass(THREAD);
548 Klass* klass = UNPACK_PAIR(Klass, klass);
549 if (klass == nullptr) {
550 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
551 if (type == T_VOID) {
552 return nullptr;
553 }
554 array_klass = Universe::typeArrayKlassObj(type);
555 if (array_klass == nullptr) {
556 JVMCI_THROW_MSG_NULL(InternalError, err_msg("No array klass for primitive type %s", type2name(type)));
557 }
558 } else {
559 array_klass = klass->array_klass(CHECK_NULL);
560 }
561 JVMCIObject result = JVMCIENV->get_jvmci_type(array_klass, JVMCI_CHECK_NULL);
562 return JVMCIENV->get_jobject(result);
563 C2V_END
564
565 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror))
566 requireInHotSpot("lookupClass", JVMCI_CHECK_NULL);
567 if (mirror == nullptr) {
568 return nullptr;
569 }
570 JVMCIKlassHandle klass(THREAD);
571 klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
572 if (klass == nullptr) {
573 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported");
574 }
575 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
576 return JVMCIENV->get_jobject(result);
577 C2V_END
578
579 C2V_VMENTRY_NULL(jobject, getUncachedStringInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
580 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
581 constantTag tag = cp->tag_at(index);
582 if (!tag.is_string()) {
583 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
584 }
585 oop obj = cp->uncached_string_at(index, CHECK_NULL);
586 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
587 C2V_END
588
589 C2V_VMENTRY_NULL(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
590 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
591 oop obj = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL);
592 constantTag tag = cp->tag_at(index);
593 if (tag.is_dynamic_constant() || tag.is_dynamic_constant_in_error()) {
594 if (obj == Universe::the_null_sentinel()) {
595 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
596 }
597 BasicType bt = Signature::basic_type(cp->uncached_signature_ref_at(index));
598 if (!is_reference_type(bt)) {
599 if (!is_java_primitive(bt)) {
600 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
601 }
602
603 // Convert standard box (e.g. java.lang.Integer) to JVMCI box (e.g. jdk.vm.ci.meta.PrimitiveConstant)
604 jvalue value;
605 jlong raw_value;
606 jchar type_char;
607 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
608 assert(bt2 == bt, "");
609 switch (bt2) {
610 case T_LONG: type_char = 'J'; raw_value = value.j; break;
611 case T_DOUBLE: type_char = 'D'; raw_value = value.j; break;
612 case T_FLOAT: type_char = 'F'; raw_value = value.i; break;
613 case T_INT: type_char = 'I'; raw_value = value.i; break;
614 case T_SHORT: type_char = 'S'; raw_value = value.s; break;
615 case T_BYTE: type_char = 'B'; raw_value = value.b; break;
616 case T_CHAR: type_char = 'C'; raw_value = value.c; break;
617 case T_BOOLEAN: type_char = 'Z'; raw_value = value.z; break;
618 default: return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
619 }
620
621 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, raw_value, JVMCI_CHECK_NULL);
622 return JVMCIENV->get_jobject(result);
623 }
624 }
625 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
626 C2V_END
627
628 C2V_VMENTRY_NULL(jobjectArray, resolveBootstrapMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
629 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
630 constantTag tag = cp->tag_at(index);
631 bool is_indy = tag.is_invoke_dynamic();
632 bool is_condy = tag.is_dynamic_constant();
633 if (!(is_condy || is_indy)) {
634 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
635 }
636 // Resolve the bootstrap specifier, its name, type, and static arguments
637 BootstrapInfo bootstrap_specifier(cp, index);
638 Handle bsm = bootstrap_specifier.resolve_bsm(CHECK_NULL);
639
640 // call java.lang.invoke.MethodHandle::asFixedArity() -> MethodHandle
641 // to get a DirectMethodHandle from which we can then extract a Method*
642 JavaValue result(T_OBJECT);
643 JavaCalls::call_virtual(&result,
644 bsm,
645 vmClasses::MethodHandle_klass(),
646 vmSymbols::asFixedArity_name(),
647 vmSymbols::asFixedArity_signature(),
648 CHECK_NULL);
649 bsm = Handle(THREAD, result.get_oop());
650
651 // Check assumption about getting a DirectMethodHandle
652 if (!java_lang_invoke_DirectMethodHandle::is_instance(bsm())) {
653 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Unexpected MethodHandle subclass: %s", bsm->klass()->external_name()));
654 }
655 // Create return array describing the bootstrap method invocation (BSMI)
656 JVMCIObjectArray bsmi = JVMCIENV->new_Object_array(4, JVMCI_CHECK_NULL);
657
658 // Extract Method* and wrap it in a ResolvedJavaMethod
659 Handle member = Handle(THREAD, java_lang_invoke_DirectMethodHandle::member(bsm()));
660 JVMCIObject bsmi_method = JVMCIENV->get_jvmci_method(methodHandle(THREAD, java_lang_invoke_MemberName::vmtarget(member())), JVMCI_CHECK_NULL);
661 JVMCIENV->put_object_at(bsmi, 0, bsmi_method);
662
663 JVMCIObject bsmi_name = JVMCIENV->create_string(bootstrap_specifier.name(), JVMCI_CHECK_NULL);
664 JVMCIENV->put_object_at(bsmi, 1, bsmi_name);
665
666 Handle type_arg = bootstrap_specifier.type_arg();
667 JVMCIObject bsmi_type = JVMCIENV->get_object_constant(type_arg());
668 JVMCIENV->put_object_at(bsmi, 2, bsmi_type);
669
670 Handle arg_values = bootstrap_specifier.arg_values();
671 if (arg_values.not_null()) {
672 if (!arg_values->is_array()) {
673 JVMCIENV->put_object_at(bsmi, 3, JVMCIENV->get_object_constant(arg_values()));
674 } else if (arg_values->is_objArray()) {
675 objArrayHandle args_array = objArrayHandle(THREAD, (objArrayOop) arg_values());
676 int len = args_array->length();
677 JVMCIObjectArray arguments = JVMCIENV->new_JavaConstant_array(len, JVMCI_CHECK_NULL);
678 JVMCIENV->put_object_at(bsmi, 3, arguments);
679 for (int i = 0; i < len; i++) {
680 oop x = args_array->obj_at(i);
681 if (x != nullptr) {
682 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_object_constant(x));
683 } else {
684 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_JavaConstant_NULL_POINTER());
685 }
686 }
687 } else if (arg_values->is_typeArray()) {
688 typeArrayHandle bsci = typeArrayHandle(THREAD, (typeArrayOop) arg_values());
689 JVMCIPrimitiveArray arguments = JVMCIENV->new_intArray(bsci->length(), JVMCI_CHECK_NULL);
690 JVMCIENV->put_object_at(bsmi, 3, arguments);
691 for (int i = 0; i < bsci->length(); i++) {
692 JVMCIENV->put_int_at(arguments, i, bsci->int_at(i));
693 }
694 }
695 }
696 return JVMCIENV->get_jobjectArray(bsmi);
697 C2V_END
698
699 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
700 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
701 return cp->name_and_type_ref_index_at(index);
702 C2V_END
703
704 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which))
705 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
706 JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which), JVMCI_CHECK_NULL);
707 return JVMCIENV->get_jobject(sym);
708 C2V_END
709
710 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which))
711 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
712 JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which), JVMCI_CHECK_NULL);
713 return JVMCIENV->get_jobject(sym);
714 C2V_END
715
716 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
717 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
718 return cp->klass_ref_index_at(index);
719 C2V_END
720
721 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
722 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
723 Klass* klass = cp->klass_at(index, CHECK_NULL);
724 JVMCIKlassHandle resolved_klass(THREAD, klass);
725 if (resolved_klass->is_instance_klass()) {
726 InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL);
727 if (!InstanceKlass::cast(resolved_klass())->is_linked()) {
728 // link_class() should not return here if there is an issue.
729 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name()));
730 }
731 }
732 JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
733 return JVMCIENV->get_jobject(klassObject);
734 C2V_END
735
736 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
737 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
738 Klass* loading_klass = cp->pool_holder();
739 bool is_accessible = false;
740 JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass));
741 Symbol* symbol = nullptr;
742 if (klass.is_null()) {
743 constantTag tag = cp->tag_at(index);
744 if (tag.is_klass()) {
745 // The klass has been inserted into the constant pool
746 // very recently.
747 klass = cp->resolved_klass_at(index);
748 } else if (tag.is_symbol()) {
749 symbol = cp->symbol_at(index);
750 } else {
751 assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag");
752 symbol = cp->klass_name_at(index);
753 }
754 }
755 JVMCIObject result;
756 if (!klass.is_null()) {
757 result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
758 } else {
759 result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL);
760 }
761 return JVMCIENV->get_jobject(result);
762 C2V_END
763
764 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
765 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
766 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
767 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop));
768 C2V_END
769
770 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jbyte opcode, ARGUMENT_PAIR(caller)))
771 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
772 methodHandle caller(THREAD, UNPACK_PAIR(Method, caller));
773 InstanceKlass* pool_holder = cp->pool_holder();
774 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
775 methodHandle method(THREAD, JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder));
776 JFR_ONLY(if (method.not_null()) Jfr::on_resolution(caller(), method(), CHECK_NULL);)
777 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
778 return JVMCIENV->get_jobject(result);
779 C2V_END
780
781 C2V_VMENTRY_0(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
782 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
783 return cp->remap_instruction_operand_from_cache(index);
784 C2V_END
785
786 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, ARGUMENT_PAIR(method), jbyte opcode, jintArray info_handle))
787 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
788 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
789 fieldDescriptor fd;
790 methodHandle mh(THREAD, UNPACK_PAIR(Method, method));
791 LinkInfo link_info(cp, index, mh, CHECK_NULL);
792 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_NULL);
793 JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle);
794 if (info.is_null() || JVMCIENV->get_length(info) != 3) {
795 JVMCI_ERROR_NULL("info must not be null and have a length of 3");
796 }
797 JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int());
798 JVMCIENV->put_int_at(info, 1, fd.offset());
799 JVMCIENV->put_int_at(info, 2, fd.index());
800 JVMCIKlassHandle handle(THREAD, fd.field_holder());
801 JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
802 return JVMCIENV->get_jobject(field_holder);
803 C2V_END
804
805 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method)))
806 Klass* klass = UNPACK_PAIR(Klass, klass);
807 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
808 InstanceKlass* holder = method->method_holder();
809 if (klass->is_interface()) {
810 JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name()));
811 }
812 if (!holder->is_interface()) {
813 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()));
814 }
815 if (!klass->is_instance_klass()) {
816 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
817 }
818 if (!InstanceKlass::cast(klass)->is_linked()) {
819 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name()));
820 }
821 if (!klass->is_subtype_of(holder)) {
822 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s does not implement interface %s", klass->external_name(), holder->external_name()));
823 }
824 return LinkResolver::vtable_index_of_interface_method(klass, method);
825 C2V_END
826
827 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(receiver), ARGUMENT_PAIR(method), ARGUMENT_PAIR(caller)))
828 Klass* recv_klass = UNPACK_PAIR(Klass, receiver);
829 Klass* caller_klass = UNPACK_PAIR(Klass, caller);
830 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
831
832 Klass* resolved = method->method_holder();
833 Symbol* h_name = method->name();
834 Symbol* h_signature = method->signature();
835
836 if (MethodHandles::is_signature_polymorphic_method(method())) {
837 // Signature polymorphic methods are already resolved, JVMCI just returns null in this case.
838 return nullptr;
839 }
840
841 if (method->name() == vmSymbols::clone_name() &&
842 resolved == vmClasses::Object_klass() &&
843 recv_klass->is_array_klass()) {
844 // Resolution of the clone method on arrays always returns Object.clone even though that method
845 // has protected access. There's some trickery in the access checking to make this all work out
846 // so it's necessary to pass in the array class as the resolved class to properly trigger this.
847 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See
848 // LinkResolver::check_method_accessability for the matching logic.
849 resolved = recv_klass;
850 }
851
852 LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
853 Method* m = nullptr;
854 // Only do exact lookup if receiver klass has been linked. Otherwise,
855 // the vtable has not been setup, and the LinkResolver will fail.
856 if (recv_klass->is_array_klass() ||
857 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
858 if (resolved->is_interface()) {
859 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
860 } else {
861 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
862 }
863 }
864
865 if (m == nullptr) {
866 // Return null if there was a problem with lookup (uninitialized class, etc.)
867 return nullptr;
868 }
869
870 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, m), JVMCI_CHECK_NULL);
871 return JVMCIENV->get_jobject(result);
872 C2V_END
873
874 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
875 Klass* klass = UNPACK_PAIR(Klass, klass);
876 assert(klass != nullptr, "method must not be called for primitive types");
877 if (!klass->is_instance_klass()) {
878 return false;
879 }
880 InstanceKlass* iklass = InstanceKlass::cast(klass);
881 return Dependencies::find_finalizable_subclass(iklass) != nullptr;
882 C2V_END
883
884 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
885 Klass* klass = UNPACK_PAIR(Klass, klass);
886 if (!klass->is_instance_klass()) {
887 return nullptr;
888 }
889 InstanceKlass* iklass = InstanceKlass::cast(klass);
890 methodHandle clinit(THREAD, iklass->class_initializer());
891 JVMCIObject result = JVMCIENV->get_jvmci_method(clinit, JVMCI_CHECK_NULL);
892 return JVMCIENV->get_jobject(result);
893 C2V_END
894
895 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr))
896 address target_addr = (address) addr;
897 if (target_addr != 0x0) {
898 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
899 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
900 return MAX2(ABS(off_low), ABS(off_high));
901 }
902 return -1;
903 C2V_END
904
905 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
906 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
907 method->set_not_c1_compilable();
908 method->set_not_c2_compilable();
909 method->set_dont_inline(true);
910 C2V_END
911
912 C2V_VMENTRY_0(jint, getInstallCodeFlags, (JNIEnv *env, jobject))
913 int flags = 0;
914 #ifndef PRODUCT
915 flags |= 0x0001; // VM will install block comments
916 flags |= 0x0004; // Enable HotSpotJVMCIRuntime.Option.CodeSerializationTypeInfo if not explicitly set
917 #endif
918 if (JvmtiExport::can_hotswap_or_post_breakpoint()) {
919 // VM needs to track method dependencies
920 flags |= 0x0002;
921 }
922 return flags;
923 C2V_END
924
925 C2V_VMENTRY_0(jint, installCode0, (JNIEnv *env, jobject,
926 jlong compiled_code_buffer,
927 jlong serialization_ns,
928 bool with_type_info,
929 jobject compiled_code,
930 jobjectArray object_pool,
931 jobject installed_code,
932 jlong failed_speculations_address,
933 jbyteArray speculations_obj))
934 HandleMark hm(THREAD);
935 JNIHandleMark jni_hm(thread);
936
937 JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
938 objArrayHandle object_pool_handle(thread, JVMCIENV->is_hotspot() ? (objArrayOop) JNIHandles::resolve(object_pool) : nullptr);
939
940 CodeBlob* cb = nullptr;
941 JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code);
942 JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj);
943
944 int speculations_len = JVMCIENV->get_length(speculations_handle);
945 char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len);
946 JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len);
947
948 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR);
949 JVMCICompiler::CodeInstallStats* stats = compiler->code_install_stats(!thread->is_Compiler_thread());
950 elapsedTimer *timer = stats->timer();
951 timer->add_nanoseconds(serialization_ns);
952 TraceTime install_time("installCode", timer);
953
954 CodeInstaller installer(JVMCIENV);
955
956 JVMCI::CodeInstallResult result = installer.install(compiler,
957 compiled_code_buffer,
958 with_type_info,
959 compiled_code_handle,
960 object_pool_handle,
961 cb,
962 installed_code_handle,
963 (FailedSpeculation**)(address) failed_speculations_address,
964 speculations,
965 speculations_len,
966 JVMCI_CHECK_0);
967
968 if (PrintCodeCacheOnCompilation) {
969 stringStream s;
970 // Dump code cache into a buffer before locking the tty,
971 {
972 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
973 CodeCache::print_summary(&s, false);
974 }
975 ttyLocker ttyl;
976 tty->print_raw_cr(s.freeze());
977 }
978
979 if (result != JVMCI::ok) {
980 assert(cb == nullptr, "should be");
981 } else {
982 stats->on_install(cb);
983 if (installed_code_handle.is_non_null()) {
984 if (cb->is_nmethod()) {
985 assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type");
986 // Clear the link to an old nmethod first
987 JVMCIObject nmethod_mirror = installed_code_handle;
988 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, true, JVMCI_CHECK_0);
989 } else {
990 assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type");
991 }
992 // Initialize the link to the new code blob
993 JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0);
994 }
995 }
996 return result;
997 C2V_END
998
999 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject))
1000 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK);
1001 CompilerStatistics* stats = compiler->stats();
1002 stats->_standard.reset();
1003 stats->_osr.reset();
1004 C2V_END
1005
1006 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode))
1007 HandleMark hm(THREAD);
1008
1009 if (installedCode == nullptr) {
1010 JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null");
1011 }
1012
1013 JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode);
1014 CodeBlob* cb = JVMCIENV->get_code_blob(installedCodeObject);
1015 if (cb == nullptr) {
1016 return nullptr;
1017 }
1018
1019 // We don't want the stringStream buffer to resize during disassembly as it
1020 // uses scoped resource memory. If a nested function called during disassembly uses
1021 // a ResourceMark and the buffer expands within the scope of the mark,
1022 // the buffer becomes garbage when that scope is exited. Experience shows that
1023 // the disassembled code is typically about 10x the code size so a fixed buffer
1024 // sized to 20x code size plus a fixed amount for header info should be sufficient.
1025 int bufferSize = cb->code_size() * 20 + 1024;
1026 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
1027 stringStream st(buffer, bufferSize);
1028 Disassembler::decode(cb, &st);
1029 if (st.size() <= 0) {
1030 return nullptr;
1031 }
1032
1033 JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL);
1034 return JVMCIENV->get_jobject(result);
1035 C2V_END
1036
1037 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int bci))
1038 HandleMark hm(THREAD);
1039
1040 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1041 JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL);
1042 return JVMCIENV->get_jobject(element);
1043 C2V_END
1044
1045 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod))
1046 // The incoming arguments array would have to contain JavaConstants instead of regular objects
1047 // and the return value would have to be wrapped as a JavaConstant.
1048 requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL);
1049
1050 HandleMark hm(THREAD);
1051
1052 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1053 nmethod* nm = JVMCIENV->get_nmethod(nmethod_mirror);
1054 if (nm == nullptr || !nm->is_in_use()) {
1055 JVMCI_THROW_NULL(InvalidInstalledCodeException);
1056 }
1057 methodHandle mh(THREAD, nm->method());
1058 Symbol* signature = mh->signature();
1059 JavaCallArguments jca(mh->size_of_parameters());
1060
1061 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
1062 JavaValue result(jap.return_type());
1063 jca.set_alternative_target(Handle(THREAD, JNIHandles::resolve(nmethod_mirror.as_jobject())));
1064 JavaCalls::call(&result, mh, &jca, CHECK_NULL);
1065
1066 if (jap.return_type() == T_VOID) {
1067 return nullptr;
1068 } else if (is_reference_type(jap.return_type())) {
1069 return JNIHandles::make_local(THREAD, result.get_oop());
1070 } else {
1071 jvalue *value = (jvalue *) result.get_value_addr();
1072 // Narrow the value down if required (Important on big endian machines)
1073 switch (jap.return_type()) {
1074 case T_BOOLEAN:
1075 value->z = (jboolean) value->i;
1076 break;
1077 case T_BYTE:
1078 value->b = (jbyte) value->i;
1079 break;
1080 case T_CHAR:
1081 value->c = (jchar) value->i;
1082 break;
1083 case T_SHORT:
1084 value->s = (jshort) value->i;
1085 break;
1086 default:
1087 break;
1088 }
1089 JVMCIObject o = JVMCIENV->create_box(jap.return_type(), value, JVMCI_CHECK_NULL);
1090 return JVMCIENV->get_jobject(o);
1091 }
1092 C2V_END
1093
1094 C2V_VMENTRY_NULL(jlongArray, getLineNumberTable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1095 Method* method = UNPACK_PAIR(Method, method);
1096 if (!method->has_linenumber_table()) {
1097 return nullptr;
1098 }
1099 u2 num_entries = 0;
1100 CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
1101 while (streamForSize.read_pair()) {
1102 num_entries++;
1103 }
1104
1105 CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
1106 JVMCIPrimitiveArray result = JVMCIENV->new_longArray(2 * num_entries, JVMCI_CHECK_NULL);
1107
1108 int i = 0;
1109 jlong value;
1110 while (stream.read_pair()) {
1111 value = ((jlong) stream.bci());
1112 JVMCIENV->put_long_at(result, i, value);
1113 value = ((jlong) stream.line());
1114 JVMCIENV->put_long_at(result, i + 1, value);
1115 i += 2;
1116 }
1117
1118 return (jlongArray) JVMCIENV->get_jobject(result);
1119 C2V_END
1120
1121 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1122 Method* method = UNPACK_PAIR(Method, method);
1123 if (!method->has_localvariable_table()) {
1124 return 0;
1125 }
1126 return (jlong) (address) method->localvariable_table_start();
1127 C2V_END
1128
1129 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1130 Method* method = UNPACK_PAIR(Method, method);
1131 return method->localvariable_table_length();
1132 C2V_END
1133
1134 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
1135 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1136 MethodCounters* mcs = method->method_counters();
1137 if (mcs != nullptr) {
1138 mcs->clear_counters();
1139 }
1140 NOT_PRODUCT(method->set_compiled_invocation_count(0));
1141
1142 CompiledMethod* code = method->code();
1143 if (code != nullptr) {
1144 code->make_not_entrant();
1145 }
1146
1147 MethodData* method_data = method->method_data();
1148 if (method_data == nullptr) {
1149 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
1150 method_data = MethodData::allocate(loader_data, method, CHECK);
1151 method->set_method_data(method_data);
1152 } else {
1153 method_data->initialize();
1154 }
1155 C2V_END
1156
1157
1158 C2V_VMENTRY(void, invalidateHotSpotNmethod, (JNIEnv* env, jobject, jobject hs_nmethod, jboolean deoptimize))
1159 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1160 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, deoptimize, JVMCI_CHECK);
1161 C2V_END
1162
1163 C2V_VMENTRY_NULL(jlongArray, collectCounters, (JNIEnv* env, jobject))
1164 // Returns a zero length array if counters aren't enabled
1165 JVMCIPrimitiveArray array = JVMCIENV->new_longArray(JVMCICounterSize, JVMCI_CHECK_NULL);
1166 if (JVMCICounterSize > 0) {
1167 jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize);
1168 JavaThread::collect_counters(temp_array, JVMCICounterSize);
1169 JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize);
1170 }
1171 return (jlongArray) JVMCIENV->get_jobject(array);
1172 C2V_END
1173
1174 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject))
1175 return (jint) JVMCICounterSize;
1176 C2V_END
1177
1178 C2V_VMENTRY_0(jboolean, setCountersSize, (JNIEnv* env, jobject, jint new_size))
1179 return JavaThread::resize_all_jvmci_counters(new_size);
1180 C2V_END
1181
1182 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int entry_bci))
1183 HandleMark hm(THREAD);
1184 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
1185 if (method.is_null()) {
1186 JVMCI_THROW_0(NullPointerException);
1187 }
1188 if (entry_bci >= method->code_size() || entry_bci < -1) {
1189 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci));
1190 }
1191 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
1192 C2V_END
1193
1194
1195 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong method_data_pointer))
1196 MethodData* mdo = (MethodData*) method_data_pointer;
1197 return mdo != nullptr && mdo->is_mature();
1198 C2V_END
1199
1200 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int entry_bci, int comp_level))
1201 Method* method = UNPACK_PAIR(Method, method);
1202 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != nullptr;
1203 C2V_END
1204
1205 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol))
1206 JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL);
1207 return JVMCIENV->get_jobject(sym);
1208 C2V_END
1209
1210 C2V_VMENTRY_NULL(jobject, getSignatureName, (JNIEnv* env, jobject, jlong klass_pointer))
1211 Klass* klass = UNPACK_PAIR(Klass, klass);
1212 JVMCIObject signature = JVMCIENV->create_string(klass->signature_name(), JVMCI_CHECK_NULL);
1213 return JVMCIENV->get_jobject(signature);
1214 C2V_END
1215
1216 /*
1217 * Used by matches() to convert a ResolvedJavaMethod[] to an array of Method*.
1218 */
1219 GrowableArray<Method*>* init_resolved_methods(jobjectArray methods, JVMCIEnv* JVMCIENV) {
1220 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1221 GrowableArray<Method*>* resolved_methods = new GrowableArray<Method*>(methods_oop->length());
1222 for (int i = 0; i < methods_oop->length(); i++) {
1223 oop resolved = methods_oop->obj_at(i);
1224 Method* resolved_method = nullptr;
1225 if (resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) {
1226 resolved_method = HotSpotJVMCI::asMethod(JVMCIENV, resolved);
1227 }
1228 resolved_methods->append(resolved_method);
1229 }
1230 return resolved_methods;
1231 }
1232
1233 /*
1234 * Used by c2v_iterateFrames to check if `method` matches one of the ResolvedJavaMethods in the `methods` array.
1235 * The ResolvedJavaMethod[] array is converted to a Method* array that is then cached in the resolved_methods_ref in/out parameter.
1236 * In case of a match, the matching ResolvedJavaMethod is returned in matched_jvmci_method_ref.
1237 */
1238 bool matches(jobjectArray methods, Method* method, GrowableArray<Method*>** resolved_methods_ref, Handle* matched_jvmci_method_ref, Thread* THREAD, JVMCIEnv* JVMCIENV) {
1239 GrowableArray<Method*>* resolved_methods = *resolved_methods_ref;
1240 if (resolved_methods == nullptr) {
1241 resolved_methods = init_resolved_methods(methods, JVMCIENV);
1242 *resolved_methods_ref = resolved_methods;
1243 }
1244 assert(method != nullptr, "method should not be null");
1245 assert(resolved_methods->length() == ((objArrayOop) JNIHandles::resolve(methods))->length(), "arrays must have the same length");
1246 for (int i = 0; i < resolved_methods->length(); i++) {
1247 Method* m = resolved_methods->at(i);
1248 if (m == method) {
1249 *matched_jvmci_method_ref = Handle(THREAD, ((objArrayOop) JNIHandles::resolve(methods))->obj_at(i));
1250 return true;
1251 }
1252 }
1253 return false;
1254 }
1255
1256 /*
1257 * Resolves an interface call to a concrete method handle.
1258 */
1259 methodHandle resolve_interface_call(Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
1260 CallInfo callinfo;
1261 Handle receiver = args->receiver();
1262 Klass* recvrKlass = receiver.is_null() ? (Klass*)nullptr : receiver->klass();
1263 LinkInfo link_info(spec_klass, name, signature);
1264 LinkResolver::resolve_interface_call(
1265 callinfo, receiver, recvrKlass, link_info, true, CHECK_(methodHandle()));
1266 methodHandle method(THREAD, callinfo.selected_method());
1267 assert(method.not_null(), "should have thrown exception");
1268 return method;
1269 }
1270
1271 /*
1272 * Used by c2v_iterateFrames to make a new vframeStream at the given compiled frame id (stack pointer) and vframe id.
1273 */
1274 void resync_vframestream_to_compiled_frame(vframeStream& vfst, intptr_t* stack_pointer, int vframe_id, JavaThread* thread, TRAPS) {
1275 vfst = vframeStream(thread);
1276 while (vfst.frame_id() != stack_pointer && !vfst.at_end()) {
1277 vfst.next();
1278 }
1279 if (vfst.frame_id() != stack_pointer) {
1280 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1281 }
1282 if (vfst.is_interpreted_frame()) {
1283 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1284 }
1285 while (vfst.vframe_id() != vframe_id) {
1286 if (vfst.at_end()) {
1287 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt")
1288 }
1289 vfst.next();
1290 assert(!vfst.is_interpreted_frame(), "Wrong frame type");
1291 }
1292 }
1293
1294 /*
1295 * Used by c2v_iterateFrames. Returns an array of any unallocated scope objects or null if none.
1296 */
1297 GrowableArray<ScopeValue*>* get_unallocated_objects_or_null(GrowableArray<ScopeValue*>* scope_objects) {
1298 GrowableArray<ScopeValue*>* unallocated = nullptr;
1299 for (int i = 0; i < scope_objects->length(); i++) {
1300 ObjectValue* sv = (ObjectValue*) scope_objects->at(i);
1301 if (sv->value().is_null()) {
1302 if (unallocated == nullptr) {
1303 unallocated = new GrowableArray<ScopeValue*>(scope_objects->length());
1304 }
1305 unallocated->append(sv);
1306 }
1307 }
1308 return unallocated;
1309 }
1310
1311 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
1312
1313 if (!thread->has_last_Java_frame()) {
1314 return nullptr;
1315 }
1316 Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
1317
1318 requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL);
1319
1320 HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1321
1322 vframeStream vfst(thread);
1323 jobjectArray methods = initial_methods;
1324 methodHandle visitor_method;
1325 GrowableArray<Method*>* resolved_methods = nullptr;
1326
1327 while (!vfst.at_end()) { // frame loop
1328 bool realloc_called = false;
1329 intptr_t* frame_id = vfst.frame_id();
1330
1331 // Previous compiledVFrame of this frame; use with at_scope() to reuse scope object pool.
1332 compiledVFrame* prev_cvf = nullptr;
1333
1334 for (; !vfst.at_end() && vfst.frame_id() == frame_id; vfst.next()) { // vframe loop
1335 int frame_number = 0;
1336 Method *method = vfst.method();
1337 int bci = vfst.bci();
1338
1339 Handle matched_jvmci_method;
1340 if (methods == nullptr || matches(methods, method, &resolved_methods, &matched_jvmci_method, THREAD, JVMCIENV)) {
1341 if (initialSkip > 0) {
1342 initialSkip--;
1343 continue;
1344 }
1345 javaVFrame* vf;
1346 if (prev_cvf != nullptr && prev_cvf->frame_pointer()->id() == frame_id) {
1347 assert(prev_cvf->is_compiled_frame(), "expected compiled Java frame");
1348 vf = prev_cvf->at_scope(vfst.decode_offset(), vfst.vframe_id());
1349 } else {
1350 vf = vfst.asJavaVFrame();
1351 }
1352
1353 StackValueCollection* locals = nullptr;
1354 typeArrayHandle localIsVirtual_h;
1355 if (vf->is_compiled_frame()) {
1356 // compiled method frame
1357 compiledVFrame* cvf = compiledVFrame::cast(vf);
1358
1359 ScopeDesc* scope = cvf->scope();
1360 // native wrappers do not have a scope
1361 if (scope != nullptr && scope->objects() != nullptr) {
1362 prev_cvf = cvf;
1363
1364 GrowableArray<ScopeValue*>* objects = nullptr;
1365 if (!realloc_called) {
1366 objects = scope->objects();
1367 } else {
1368 // some object might already have been re-allocated, only reallocate the non-allocated ones
1369 objects = get_unallocated_objects_or_null(scope->objects());
1370 }
1371
1372 if (objects != nullptr) {
1373 RegisterMap reg_map(vf->register_map());
1374 bool realloc_failures = Deoptimization::realloc_objects(thread, vf->frame_pointer(), ®_map, objects, CHECK_NULL);
1375 Deoptimization::reassign_fields(vf->frame_pointer(), ®_map, objects, realloc_failures, false);
1376 realloc_called = true;
1377 }
1378
1379 GrowableArray<ScopeValue*>* local_values = scope->locals();
1380 for (int i = 0; i < local_values->length(); i++) {
1381 ScopeValue* value = local_values->at(i);
1382 if (value->is_object()) {
1383 if (localIsVirtual_h.is_null()) {
1384 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1385 localIsVirtual_h = typeArrayHandle(THREAD, array_oop);
1386 }
1387 localIsVirtual_h->bool_at_put(i, true);
1388 }
1389 }
1390 }
1391
1392 locals = cvf->locals();
1393 frame_number = cvf->vframe_id();
1394 } else {
1395 // interpreted method frame
1396 interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1397
1398 locals = ivf->locals();
1399 }
1400 assert(bci == vf->bci(), "wrong bci");
1401 assert(method == vf->method(), "wrong method");
1402
1403 Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1404 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), bci);
1405 if (matched_jvmci_method.is_null()) {
1406 methodHandle mh(THREAD, method);
1407 JVMCIObject jvmci_method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1408 matched_jvmci_method = Handle(THREAD, JNIHandles::resolve(jvmci_method.as_jobject()));
1409 }
1410 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), matched_jvmci_method());
1411 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), localIsVirtual_h());
1412
1413 HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM));
1414 HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) frame_id);
1415 HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number);
1416
1417 // initialize the locals array
1418 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1419 objArrayHandle array(THREAD, array_oop);
1420 for (int i = 0; i < locals->size(); i++) {
1421 StackValue* var = locals->at(i);
1422 if (var->type() == T_OBJECT) {
1423 array->obj_at_put(i, locals->at(i)->get_obj()());
1424 }
1425 }
1426 HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array());
1427 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE);
1428
1429 JavaValue result(T_OBJECT);
1430 JavaCallArguments args(visitor);
1431 if (visitor_method.is_null()) {
1432 visitor_method = resolve_interface_call(HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL);
1433 }
1434
1435 args.push_oop(frame_reference);
1436 JavaCalls::call(&result, visitor_method, &args, CHECK_NULL);
1437 if (result.get_oop() != nullptr) {
1438 return JNIHandles::make_local(thread, result.get_oop());
1439 }
1440 if (methods == initial_methods) {
1441 methods = match_methods;
1442 if (resolved_methods != nullptr && JNIHandles::resolve(match_methods) != JNIHandles::resolve(initial_methods)) {
1443 resolved_methods = nullptr;
1444 }
1445 }
1446 assert(initialSkip == 0, "There should be no match before initialSkip == 0");
1447 if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) {
1448 // the frame has been deoptimized, we need to re-synchronize the frame and vframe
1449 prev_cvf = nullptr;
1450 intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference());
1451 resync_vframestream_to_compiled_frame(vfst, stack_pointer, frame_number, thread, CHECK_NULL);
1452 }
1453 }
1454 } // end of vframe loop
1455 } // end of frame loop
1456
1457 // the end was reached without finding a matching method
1458 return nullptr;
1459 C2V_END
1460
1461 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
1462 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1463 CallInfo callInfo;
1464 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK);
1465 ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index);
1466 cp_cache_entry->set_dynamic_call(cp, callInfo);
1467 C2V_END
1468
1469 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
1470 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1471 Klass* holder = cp->klass_ref_at(index, CHECK);
1472 Symbol* name = cp->name_ref_at(index);
1473 if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1474 CallInfo callInfo;
1475 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1476 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1477 cp_cache_entry->set_method_handle(cp, callInfo);
1478 }
1479 C2V_END
1480
1481 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index))
1482 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp));
1483 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1484 if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) {
1485 // MethodHandle.invoke* --> LambdaForm?
1486 ResourceMark rm;
1487
1488 LinkInfo link_info(cp, index, CATCH);
1489
1490 Klass* resolved_klass = link_info.resolved_klass();
1491
1492 Symbol* name_sym = cp->name_ref_at(index);
1493
1494 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1495 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1496
1497 methodHandle adapter_method(THREAD, cp_cache_entry->f1_as_method());
1498
1499 methodHandle resolved_method(adapter_method);
1500
1501 // Can we treat it as a regular invokevirtual?
1502 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1503 vmassert(!resolved_method->is_static(),"!");
1504 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1505 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1506 vmassert(cp_cache_entry->appendix_if_resolved(cp) == nullptr, "!");
1507
1508 methodHandle m(THREAD, LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1509 vmassert(m == resolved_method, "!!");
1510 return -1;
1511 }
1512
1513 return Bytecodes::_invokevirtual;
1514 }
1515 if (cp_cache_entry->is_resolved(Bytecodes::_invokedynamic)) {
1516 return Bytecodes::_invokedynamic;
1517 }
1518 return -1;
1519 C2V_END
1520
1521
1522 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject))
1523 JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL);
1524 JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL);
1525 JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL);
1526 JVMCIENV->put_object_at(holders, 0, mh);
1527 JVMCIENV->put_object_at(holders, 1, vh);
1528 return JVMCIENV->get_jobject(holders);
1529 C2V_END
1530
1531 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject))
1532 //see compute_recording_non_safepoints in debugInfroRec.cpp
1533 if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1534 return true;
1535 }
1536 return DebugNonSafepoints;
1537 C2V_END
1538
1539 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1540 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate))
1541 JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame);
1542 if (hs_frame.is_null()) {
1543 JVMCI_THROW_MSG(NullPointerException, "stack frame is null");
1544 }
1545
1546 requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK);
1547
1548 JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK);
1549
1550 // look for the given stack frame
1551 StackFrameStream fst(thread, false /* update */, true /* process_frames */);
1552 intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame);
1553 while (fst.current()->id() != stack_pointer && !fst.is_done()) {
1554 fst.next();
1555 }
1556 if (fst.current()->id() != stack_pointer) {
1557 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found");
1558 }
1559
1560 if (invalidate) {
1561 if (!fst.current()->is_compiled_frame()) {
1562 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1563 }
1564 assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
1565 ((nmethod*) fst.current()->cb())->make_not_entrant();
1566 }
1567 Deoptimization::deoptimize(thread, *fst.current(), Deoptimization::Reason_none);
1568 // look for the frame again as it has been updated by deopt (pc, deopt state...)
1569 StackFrameStream fstAfterDeopt(thread, true /* update */, true /* process_frames */);
1570 while (fstAfterDeopt.current()->id() != stack_pointer && !fstAfterDeopt.is_done()) {
1571 fstAfterDeopt.next();
1572 }
1573 if (fstAfterDeopt.current()->id() != stack_pointer) {
1574 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found after deopt");
1575 }
1576
1577 vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1578 if (!vf->is_compiled_frame()) {
1579 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1580 }
1581
1582 GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1583 while (true) {
1584 assert(vf->is_compiled_frame(), "Wrong frame type");
1585 virtualFrames->push(compiledVFrame::cast(vf));
1586 if (vf->is_top()) {
1587 break;
1588 }
1589 vf = vf->sender();
1590 }
1591
1592 int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame);
1593 if (last_frame_number >= virtualFrames->length()) {
1594 JVMCI_THROW_MSG(IllegalStateException, "invalid frame number");
1595 }
1596
1597 // Reallocate the non-escaping objects and restore their fields.
1598 assert (virtualFrames->at(last_frame_number)->scope() != nullptr,"invalid scope");
1599 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1600
1601 if (objects == nullptr) {
1602 // no objects to materialize
1603 return;
1604 }
1605
1606 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK);
1607 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
1608
1609 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1610 compiledVFrame* cvf = virtualFrames->at(frame_index);
1611
1612 GrowableArray<ScopeValue*>* scopedValues = cvf->scope()->locals();
1613 StackValueCollection* locals = cvf->locals();
1614 if (locals != nullptr) {
1615 for (int i2 = 0; i2 < locals->size(); i2++) {
1616 StackValue* var = locals->at(i2);
1617 if (var->type() == T_OBJECT && scopedValues->at(i2)->is_object()) {
1618 jvalue val;
1619 val.l = cast_from_oop<jobject>(locals->at(i2)->get_obj()());
1620 cvf->update_local(T_OBJECT, i2, val);
1621 }
1622 }
1623 }
1624
1625 GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1626 StackValueCollection* expressions = cvf->expressions();
1627 if (expressions != nullptr) {
1628 for (int i2 = 0; i2 < expressions->size(); i2++) {
1629 StackValue* var = expressions->at(i2);
1630 if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) {
1631 jvalue val;
1632 val.l = cast_from_oop<jobject>(expressions->at(i2)->get_obj()());
1633 cvf->update_stack(T_OBJECT, i2, val);
1634 }
1635 }
1636 }
1637
1638 GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors();
1639 GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
1640 if (monitors != nullptr) {
1641 for (int i2 = 0; i2 < monitors->length(); i2++) {
1642 cvf->update_monitor(i2, monitors->at(i2));
1643 }
1644 }
1645 }
1646
1647 // all locals are materialized by now
1648 JVMCIENV->set_HotSpotStackFrameReference_localIsVirtual(hs_frame, nullptr);
1649 // update the locals array
1650 JVMCIObjectArray array = JVMCIENV->get_HotSpotStackFrameReference_locals(hs_frame);
1651 StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1652 for (int i = 0; i < locals->size(); i++) {
1653 StackValue* var = locals->at(i);
1654 if (var->type() == T_OBJECT) {
1655 JVMCIENV->put_object_at(array, i, HotSpotJVMCI::wrap(locals->at(i)->get_obj()()));
1656 }
1657 }
1658 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, hs_frame, JNI_TRUE);
1659 C2V_END
1660
1661 // Use of tty does not require the current thread to be attached to the VM
1662 // so no need for a full C2V_VMENTRY transition.
1663 C2V_VMENTRY_PREFIX(void, writeDebugOutput, (JNIEnv* env, jobject, jlong buffer, jint length, bool flush))
1664 if (length <= 8) {
1665 tty->write((char*) &buffer, length);
1666 } else {
1667 tty->write((char*) buffer, length);
1668 }
1669 if (flush) {
1670 tty->flush();
1671 }
1672 C2V_END
1673
1674 // Use of tty does not require the current thread to be attached to the VM
1675 // so no need for a full C2V_VMENTRY transition.
1676 C2V_VMENTRY_PREFIX(void, flushDebugOutput, (JNIEnv* env, jobject))
1677 tty->flush();
1678 C2V_END
1679
1680 C2V_VMENTRY_0(jint, methodDataProfileDataSize, (JNIEnv* env, jobject, jlong method_data_pointer, jint position))
1681 MethodData* mdo = (MethodData*) method_data_pointer;
1682 ProfileData* profile_data = mdo->data_at(position);
1683 if (mdo->is_valid(profile_data)) {
1684 return profile_data->size_in_bytes();
1685 }
1686 DataLayout* data = mdo->extra_data_base();
1687 DataLayout* end = mdo->extra_data_limit();
1688 for (;; data = mdo->next_extra(data)) {
1689 assert(data < end, "moved past end of extra data");
1690 profile_data = data->data_in();
1691 if (mdo->dp_to_di(profile_data->dp()) == position) {
1692 return profile_data->size_in_bytes();
1693 }
1694 }
1695 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Invalid profile data position %d", position));
1696 C2V_END
1697
1698 C2V_VMENTRY_NULL(jobject, getInterfaces, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1699 Klass* klass = UNPACK_PAIR(Klass, klass);
1700 if (klass == nullptr) {
1701 JVMCI_THROW_0(NullPointerException);
1702 }
1703
1704 if (!klass->is_instance_klass()) {
1705 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
1706 }
1707 InstanceKlass* iklass = InstanceKlass::cast(klass);
1708
1709 // Regular instance klass, fill in all local interfaces
1710 int size = iklass->local_interfaces()->length();
1711 JVMCIObjectArray interfaces = JVMCIENV->new_HotSpotResolvedObjectTypeImpl_array(size, JVMCI_CHECK_NULL);
1712 for (int index = 0; index < size; index++) {
1713 JVMCIKlassHandle klass(THREAD);
1714 Klass* k = iklass->local_interfaces()->at(index);
1715 klass = k;
1716 JVMCIObject type = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
1717 JVMCIENV->put_object_at(interfaces, index, type);
1718 }
1719 return JVMCIENV->get_jobject(interfaces);
1720 C2V_END
1721
1722 C2V_VMENTRY_NULL(jobject, getComponentType, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1723 Klass* klass = UNPACK_PAIR(Klass, klass);
1724 if (klass == nullptr) {
1725 JVMCI_THROW_0(NullPointerException);
1726 }
1727
1728 if (!klass->is_array_klass()) {
1729 return nullptr;
1730 }
1731 oop mirror = klass->java_mirror();
1732 oop component_mirror = java_lang_Class::component_mirror(mirror);
1733 if (component_mirror == nullptr) {
1734 JVMCI_THROW_MSG_0(NullPointerException,
1735 err_msg("Component mirror for array class %s is null", klass->external_name()))
1736 }
1737
1738 Klass* component_klass = java_lang_Class::as_Klass(component_mirror);
1739 if (component_klass != nullptr) {
1740 JVMCIKlassHandle klass_handle(THREAD, component_klass);
1741 JVMCIObject result = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
1742 return JVMCIENV->get_jobject(result);
1743 }
1744 BasicType type = java_lang_Class::primitive_type(component_mirror);
1745 JVMCIObject result = JVMCIENV->get_jvmci_primitive_type(type);
1746 return JVMCIENV->get_jobject(result);
1747 C2V_END
1748
1749 C2V_VMENTRY(void, ensureInitialized, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1750 Klass* klass = UNPACK_PAIR(Klass, klass);
1751 if (klass == nullptr) {
1752 JVMCI_THROW(NullPointerException);
1753 }
1754 if (klass->should_be_initialized()) {
1755 InstanceKlass* k = InstanceKlass::cast(klass);
1756 k->initialize(CHECK);
1757 }
1758 C2V_END
1759
1760 C2V_VMENTRY(void, ensureLinked, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1761 Klass* klass = UNPACK_PAIR(Klass, klass);
1762 if (klass == nullptr) {
1763 JVMCI_THROW(NullPointerException);
1764 }
1765 if (klass->is_instance_klass()) {
1766 InstanceKlass* k = InstanceKlass::cast(klass);
1767 k->link_class(CHECK);
1768 }
1769 C2V_END
1770
1771 C2V_VMENTRY_0(jint, interpreterFrameSize, (JNIEnv* env, jobject, jobject bytecode_frame_handle))
1772 if (bytecode_frame_handle == nullptr) {
1773 JVMCI_THROW_0(NullPointerException);
1774 }
1775
1776 JVMCIObject top_bytecode_frame = JVMCIENV->wrap(bytecode_frame_handle);
1777 JVMCIObject bytecode_frame = top_bytecode_frame;
1778 int size = 0;
1779 int callee_parameters = 0;
1780 int callee_locals = 0;
1781 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1782 int extra_args = method->max_stack() - JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1783
1784 while (bytecode_frame.is_non_null()) {
1785 int locks = JVMCIENV->get_BytecodeFrame_numLocks(bytecode_frame);
1786 int temps = JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1787 bool is_top_frame = (JVMCIENV->equals(bytecode_frame, top_bytecode_frame));
1788 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1789
1790 int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
1791 temps + callee_parameters,
1792 extra_args,
1793 locks,
1794 callee_parameters,
1795 callee_locals,
1796 is_top_frame);
1797 size += frame_size;
1798
1799 callee_parameters = method->size_of_parameters();
1800 callee_locals = method->max_locals();
1801 extra_args = 0;
1802 bytecode_frame = JVMCIENV->get_BytecodePosition_caller(bytecode_frame);
1803 }
1804 return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
1805 C2V_END
1806
1807 C2V_VMENTRY(void, compileToBytecode, (JNIEnv* env, jobject, jobject lambda_form_handle))
1808 Handle lambda_form = JVMCIENV->asConstant(JVMCIENV->wrap(lambda_form_handle), JVMCI_CHECK);
1809 if (lambda_form->is_a(vmClasses::LambdaForm_klass())) {
1810 TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode");
1811 JavaValue result(T_VOID);
1812 JavaCalls::call_special(&result, lambda_form, vmClasses::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK);
1813 } else {
1814 JVMCI_THROW_MSG(IllegalArgumentException,
1815 err_msg("Unexpected type: %s", lambda_form->klass()->external_name()))
1816 }
1817 C2V_END
1818
1819 C2V_VMENTRY_0(jint, getIdentityHashCode, (JNIEnv* env, jobject, jobject object))
1820 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1821 return obj->identity_hash();
1822 C2V_END
1823
1824 C2V_VMENTRY_0(jboolean, isInternedString, (JNIEnv* env, jobject, jobject object))
1825 Handle str = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1826 if (!java_lang_String::is_instance(str())) {
1827 return false;
1828 }
1829 int len;
1830 jchar* name = java_lang_String::as_unicode_string(str(), len, CHECK_false);
1831 return (StringTable::lookup(name, len) != nullptr);
1832 C2V_END
1833
1834
1835 C2V_VMENTRY_NULL(jobject, unboxPrimitive, (JNIEnv* env, jobject, jobject object))
1836 if (object == nullptr) {
1837 JVMCI_THROW_0(NullPointerException);
1838 }
1839 Handle box = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
1840 BasicType type = java_lang_boxing_object::basic_type(box());
1841 jvalue result;
1842 if (java_lang_boxing_object::get_value(box(), &result) == T_ILLEGAL) {
1843 return nullptr;
1844 }
1845 JVMCIObject boxResult = JVMCIENV->create_box(type, &result, JVMCI_CHECK_NULL);
1846 return JVMCIENV->get_jobject(boxResult);
1847 C2V_END
1848
1849 C2V_VMENTRY_NULL(jobject, boxPrimitive, (JNIEnv* env, jobject, jobject object))
1850 if (object == nullptr) {
1851 JVMCI_THROW_0(NullPointerException);
1852 }
1853 JVMCIObject box = JVMCIENV->wrap(object);
1854 BasicType type = JVMCIENV->get_box_type(box);
1855 if (type == T_ILLEGAL) {
1856 return nullptr;
1857 }
1858 jvalue value = JVMCIENV->get_boxed_value(type, box);
1859 JavaValue box_result(T_OBJECT);
1860 JavaCallArguments jargs;
1861 Klass* box_klass = nullptr;
1862 Symbol* box_signature = nullptr;
1863 #define BOX_CASE(bt, v, argtype, name) \
1864 case bt: \
1865 jargs.push_##argtype(value.v); \
1866 box_klass = vmClasses::name##_klass(); \
1867 box_signature = vmSymbols::name##_valueOf_signature(); \
1868 break
1869
1870 switch (type) {
1871 BOX_CASE(T_BOOLEAN, z, int, Boolean);
1872 BOX_CASE(T_BYTE, b, int, Byte);
1873 BOX_CASE(T_CHAR, c, int, Character);
1874 BOX_CASE(T_SHORT, s, int, Short);
1875 BOX_CASE(T_INT, i, int, Integer);
1876 BOX_CASE(T_LONG, j, long, Long);
1877 BOX_CASE(T_FLOAT, f, float, Float);
1878 BOX_CASE(T_DOUBLE, d, double, Double);
1879 default:
1880 ShouldNotReachHere();
1881 }
1882 #undef BOX_CASE
1883
1884 JavaCalls::call_static(&box_result,
1885 box_klass,
1886 vmSymbols::valueOf_name(),
1887 box_signature, &jargs, CHECK_NULL);
1888 oop hotspot_box = box_result.get_oop();
1889 JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false);
1890 return JVMCIENV->get_jobject(result);
1891 C2V_END
1892
1893 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1894 Klass* klass = UNPACK_PAIR(Klass, klass);
1895 if (klass == nullptr) {
1896 JVMCI_THROW_0(NullPointerException);
1897 }
1898 if (!klass->is_instance_klass()) {
1899 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1900 return JVMCIENV->get_jobjectArray(methods);
1901 }
1902
1903 InstanceKlass* iklass = InstanceKlass::cast(klass);
1904 GrowableArray<Method*> constructors_array;
1905 for (int i = 0; i < iklass->methods()->length(); i++) {
1906 Method* m = iklass->methods()->at(i);
1907 if (m->is_initializer() && !m->is_static()) {
1908 constructors_array.append(m);
1909 }
1910 }
1911 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
1912 for (int i = 0; i < constructors_array.length(); i++) {
1913 methodHandle ctor(THREAD, constructors_array.at(i));
1914 JVMCIObject method = JVMCIENV->get_jvmci_method(ctor, JVMCI_CHECK_NULL);
1915 JVMCIENV->put_object_at(methods, i, method);
1916 }
1917 return JVMCIENV->get_jobjectArray(methods);
1918 C2V_END
1919
1920 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
1921 Klass* klass = UNPACK_PAIR(Klass, klass);
1922 if (klass == nullptr) {
1923 JVMCI_THROW_0(NullPointerException);
1924 }
1925 if (!klass->is_instance_klass()) {
1926 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1927 return JVMCIENV->get_jobjectArray(methods);
1928 }
1929
1930 InstanceKlass* iklass = InstanceKlass::cast(klass);
1931 GrowableArray<Method*> methods_array;
1932 for (int i = 0; i < iklass->methods()->length(); i++) {
1933 Method* m = iklass->methods()->at(i);
1934 if (!m->is_initializer() && !m->is_overpass()) {
1935 methods_array.append(m);
1936 }
1937 }
1938 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
1939 for (int i = 0; i < methods_array.length(); i++) {
1940 methodHandle mh(THREAD, methods_array.at(i));
1941 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1942 JVMCIENV->put_object_at(methods, i, method);
1943 }
1944 return JVMCIENV->get_jobjectArray(methods);
1945 C2V_END
1946
1947 static jobject read_field_value(Handle obj, long displacement, jchar type_char, bool is_static, Thread* THREAD, JVMCIEnv* JVMCIENV) {
1948
1949 BasicType basic_type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_NULL);
1950 int basic_type_elemsize = type2aelembytes(basic_type);
1951 if (displacement < 0 || ((size_t) displacement + basic_type_elemsize > HeapWordSize * obj->size())) {
1952 // Reading outside of the object bounds
1953 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading outside object bounds");
1954 }
1955
1956 // Perform basic sanity checks on the read. Primitive reads are permitted to read outside the
1957 // bounds of their fields but object reads must map exactly onto the underlying oop slot.
1958 bool aligned = (displacement % basic_type_elemsize) == 0;
1959 if (!aligned) {
1960 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "read is unaligned");
1961 }
1962 if (basic_type == T_OBJECT) {
1963 if (obj->is_objArray()) {
1964 if (displacement < arrayOopDesc::base_offset_in_bytes(T_OBJECT)) {
1965 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
1966 }
1967 if (displacement + heapOopSize > arrayOopDesc::base_offset_in_bytes(T_OBJECT) + arrayOop(obj())->length() * heapOopSize) {
1968 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading after last array element");
1969 }
1970 if (((displacement - arrayOopDesc::base_offset_in_bytes(T_OBJECT)) % heapOopSize) != 0) {
1971 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "misaligned object read from array");
1972 }
1973 } else if (obj->is_instance()) {
1974 InstanceKlass* klass = InstanceKlass::cast(is_static ? java_lang_Class::as_Klass(obj()) : obj->klass());
1975 fieldDescriptor fd;
1976 if (!klass->find_field_from_offset(displacement, is_static, &fd)) {
1977 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Can't find field at displacement %d in object of type %s", (int) displacement, klass->external_name()));
1978 }
1979 if (fd.field_type() != T_OBJECT && fd.field_type() != T_ARRAY) {
1980 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Field at displacement %d in object of type %s is %s but expected %s", (int) displacement,
1981 klass->external_name(), type2name(fd.field_type()), type2name(basic_type)));
1982 }
1983 } else if (obj->is_typeArray()) {
1984 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Can't read objects from primitive array");
1985 } else {
1986 ShouldNotReachHere();
1987 }
1988 } else {
1989 if (obj->is_objArray()) {
1990 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Reading primitive from object array");
1991 } else if (obj->is_typeArray()) {
1992 if (displacement < arrayOopDesc::base_offset_in_bytes(ArrayKlass::cast(obj->klass())->element_type())) {
1993 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
1994 }
1995 }
1996 }
1997
1998 jlong value = 0;
1999
2000 // Treat all reads as volatile for simplicity as this function can be used
2001 // both for reading Java fields declared as volatile as well as for constant
2002 // folding Unsafe.get* methods with volatile semantics.
2003
2004 switch (basic_type) {
2005 case T_BOOLEAN: value = obj->bool_field_acquire(displacement); break;
2006 case T_BYTE: value = obj->byte_field_acquire(displacement); break;
2007 case T_SHORT: value = obj->short_field_acquire(displacement); break;
2008 case T_CHAR: value = obj->char_field_acquire(displacement); break;
2009 case T_FLOAT:
2010 case T_INT: value = obj->int_field_acquire(displacement); break;
2011 case T_DOUBLE:
2012 case T_LONG: value = obj->long_field_acquire(displacement); break;
2013
2014 case T_OBJECT: {
2015 if (displacement == java_lang_Class::component_mirror_offset() && java_lang_Class::is_instance(obj()) &&
2016 (java_lang_Class::as_Klass(obj()) == nullptr || !java_lang_Class::as_Klass(obj())->is_array_klass())) {
2017 // Class.componentType for non-array classes can transiently contain an int[] that's
2018 // used for locking so always return null to mimic Class.getComponentType()
2019 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
2020 }
2021
2022 oop value = obj->obj_field_acquire(displacement);
2023
2024 if (value == nullptr) {
2025 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
2026 } else {
2027 if (value != nullptr && !oopDesc::is_oop(value)) {
2028 // Throw an exception to improve debuggability. This check isn't totally reliable because
2029 // is_oop doesn't try to be completety safe but for most invalid values it provides a good
2030 // enough answer. It possible to crash in the is_oop call but that just means the crash happens
2031 // closer to where things went wrong.
2032 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Read bad oop " INTPTR_FORMAT " at offset " JLONG_FORMAT " in object " INTPTR_FORMAT " of type %s",
2033 p2i(value), displacement, p2i(obj()), obj->klass()->external_name()));
2034 }
2035
2036 JVMCIObject result = JVMCIENV->get_object_constant(value);
2037 return JVMCIENV->get_jobject(result);
2038 }
2039 }
2040
2041 default:
2042 ShouldNotReachHere();
2043 }
2044 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, value, JVMCI_CHECK_NULL);
2045 return JVMCIENV->get_jobject(result);
2046 }
2047
2048 C2V_VMENTRY_NULL(jobject, readStaticFieldValue, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), long displacement, jchar type_char))
2049 Klass* klass = UNPACK_PAIR(Klass, klass);
2050 Handle obj(THREAD, klass->java_mirror());
2051 return read_field_value(obj, displacement, type_char, true, THREAD, JVMCIENV);
2052 C2V_END
2053
2054 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, ARGUMENT_PAIR(expected_type), long displacement, jchar type_char))
2055 if (object == nullptr) {
2056 JVMCI_THROW_0(NullPointerException);
2057 }
2058
2059 // asConstant will throw an NPE if a constant contains null
2060 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2061
2062 Klass* expected_klass = UNPACK_PAIR(Klass, expected_type);
2063 if (expected_klass != nullptr) {
2064 InstanceKlass* expected_iklass = InstanceKlass::cast(expected_klass);
2065 if (!obj->is_a(expected_iklass)) {
2066 // Not of the expected type
2067 return nullptr;
2068 }
2069 }
2070 bool is_static = expected_klass == nullptr && java_lang_Class::is_instance(obj()) && displacement >= InstanceMirrorKlass::offset_of_static_fields();
2071 return read_field_value(obj, displacement, type_char, is_static, THREAD, JVMCIENV);
2072 C2V_END
2073
2074 C2V_VMENTRY_0(jboolean, isInstance, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jobject object))
2075 Klass* klass = UNPACK_PAIR(Klass, klass);
2076 if (object == nullptr || klass == nullptr) {
2077 JVMCI_THROW_0(NullPointerException);
2078 }
2079 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2080 return obj->is_a(klass);
2081 C2V_END
2082
2083 C2V_VMENTRY_0(jboolean, isAssignableFrom, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(subklass)))
2084 Klass* klass = UNPACK_PAIR(Klass, klass);
2085 Klass* subklass = UNPACK_PAIR(Klass, subklass);
2086 if (klass == nullptr || subklass == nullptr) {
2087 JVMCI_THROW_0(NullPointerException);
2088 }
2089 return subklass->is_subtype_of(klass);
2090 C2V_END
2091
2092 C2V_VMENTRY_0(jboolean, isTrustedForIntrinsics, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2093 Klass* klass = UNPACK_PAIR(Klass, klass);
2094 if (klass == nullptr) {
2095 JVMCI_THROW_0(NullPointerException);
2096 }
2097 InstanceKlass* ik = InstanceKlass::cast(klass);
2098 if (ik->class_loader_data()->is_boot_class_loader_data() || ik->class_loader_data()->is_platform_class_loader_data()) {
2099 return true;
2100 }
2101 return false;
2102 C2V_END
2103
2104 C2V_VMENTRY_NULL(jobject, asJavaType, (JNIEnv* env, jobject, jobject object))
2105 if (object == nullptr) {
2106 JVMCI_THROW_0(NullPointerException);
2107 }
2108 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2109 if (java_lang_Class::is_instance(obj())) {
2110 if (java_lang_Class::is_primitive(obj())) {
2111 JVMCIObject type = JVMCIENV->get_jvmci_primitive_type(java_lang_Class::primitive_type(obj()));
2112 return JVMCIENV->get_jobject(type);
2113 }
2114 Klass* klass = java_lang_Class::as_Klass(obj());
2115 JVMCIKlassHandle klass_handle(THREAD);
2116 klass_handle = klass;
2117 JVMCIObject type = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
2118 return JVMCIENV->get_jobject(type);
2119 }
2120 return nullptr;
2121 C2V_END
2122
2123
2124 C2V_VMENTRY_NULL(jobject, asString, (JNIEnv* env, jobject, jobject object))
2125 if (object == nullptr) {
2126 JVMCI_THROW_0(NullPointerException);
2127 }
2128 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2129 const char* str = java_lang_String::as_utf8_string(obj());
2130 JVMCIObject result = JVMCIENV->create_string(str, JVMCI_CHECK_NULL);
2131 return JVMCIENV->get_jobject(result);
2132 C2V_END
2133
2134
2135 C2V_VMENTRY_0(jboolean, equals, (JNIEnv* env, jobject, jobject x, jlong xHandle, jobject y, jlong yHandle))
2136 if (x == nullptr || y == nullptr) {
2137 JVMCI_THROW_0(NullPointerException);
2138 }
2139 return JVMCIENV->resolve_oop_handle(xHandle) == JVMCIENV->resolve_oop_handle(yHandle);
2140 C2V_END
2141
2142 C2V_VMENTRY_NULL(jobject, getJavaMirror, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2143 Klass* klass = UNPACK_PAIR(Klass, klass);
2144 if (klass == nullptr) {
2145 JVMCI_THROW_0(NullPointerException);
2146 }
2147 Handle mirror(THREAD, klass->java_mirror());
2148 JVMCIObject result = JVMCIENV->get_object_constant(mirror());
2149 return JVMCIENV->get_jobject(result);
2150 C2V_END
2151
2152
2153 C2V_VMENTRY_0(jint, getArrayLength, (JNIEnv* env, jobject, jobject x))
2154 if (x == nullptr) {
2155 JVMCI_THROW_0(NullPointerException);
2156 }
2157 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2158 if (xobj->klass()->is_array_klass()) {
2159 return arrayOop(xobj())->length();
2160 }
2161 return -1;
2162 C2V_END
2163
2164
2165 C2V_VMENTRY_NULL(jobject, readArrayElement, (JNIEnv* env, jobject, jobject x, int index))
2166 if (x == nullptr) {
2167 JVMCI_THROW_0(NullPointerException);
2168 }
2169 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_NULL);
2170 if (xobj->klass()->is_array_klass()) {
2171 arrayOop array = arrayOop(xobj());
2172 BasicType element_type = ArrayKlass::cast(array->klass())->element_type();
2173 if (index < 0 || index >= array->length()) {
2174 return nullptr;
2175 }
2176 JVMCIObject result;
2177
2178 if (element_type == T_OBJECT) {
2179 result = JVMCIENV->get_object_constant(objArrayOop(xobj())->obj_at(index));
2180 if (result.is_null()) {
2181 result = JVMCIENV->get_JavaConstant_NULL_POINTER();
2182 }
2183 } else {
2184 jvalue value;
2185 switch (element_type) {
2186 case T_DOUBLE: value.d = typeArrayOop(xobj())->double_at(index); break;
2187 case T_FLOAT: value.f = typeArrayOop(xobj())->float_at(index); break;
2188 case T_LONG: value.j = typeArrayOop(xobj())->long_at(index); break;
2189 case T_INT: value.i = typeArrayOop(xobj())->int_at(index); break;
2190 case T_SHORT: value.s = typeArrayOop(xobj())->short_at(index); break;
2191 case T_CHAR: value.c = typeArrayOop(xobj())->char_at(index); break;
2192 case T_BYTE: value.b = typeArrayOop(xobj())->byte_at(index); break;
2193 case T_BOOLEAN: value.z = typeArrayOop(xobj())->byte_at(index) & 1; break;
2194 default: ShouldNotReachHere();
2195 }
2196 result = JVMCIENV->create_box(element_type, &value, JVMCI_CHECK_NULL);
2197 }
2198 assert(!result.is_null(), "must have a value");
2199 return JVMCIENV->get_jobject(result);
2200 }
2201 return nullptr;;
2202 C2V_END
2203
2204
2205 C2V_VMENTRY_0(jint, arrayBaseOffset, (JNIEnv* env, jobject, jchar type_char))
2206 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
2207 return arrayOopDesc::header_size(type) * HeapWordSize;
2208 C2V_END
2209
2210 C2V_VMENTRY_0(jint, arrayIndexScale, (JNIEnv* env, jobject, jchar type_char))
2211 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0);
2212 return type2aelembytes(type);
2213 C2V_END
2214
2215 C2V_VMENTRY(void, releaseClearedOopHandles, (JNIEnv* env, jobject))
2216 JVMCIENV->runtime()->release_cleared_oop_handles();
2217 C2V_END
2218
2219 static void requireJVMCINativeLibrary(JVMCI_TRAPS) {
2220 if (!UseJVMCINativeLibrary) {
2221 JVMCI_THROW_MSG(UnsupportedOperationException, "JVMCI shared library is not enabled (requires -XX:+UseJVMCINativeLibrary)");
2222 }
2223 }
2224
2225 C2V_VMENTRY_NULL(jlongArray, registerNativeMethods, (JNIEnv* env, jobject, jclass mirror))
2226 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2227 requireInHotSpot("registerNativeMethods", JVMCI_CHECK_NULL);
2228 char* sl_path;
2229 void* sl_handle;
2230 JVMCIRuntime* runtime;
2231 {
2232 // Ensure the JVMCI shared library runtime is initialized.
2233 JVMCIEnv __peer_jvmci_env__(thread, false, __FILE__, __LINE__);
2234 JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2235 HandleMark hm(THREAD);
2236 runtime = JVMCI::compiler_runtime(thread);
2237 if (peerEnv->has_pending_exception()) {
2238 peerEnv->describe_pending_exception(true);
2239 }
2240 sl_handle = JVMCI::get_shared_library(sl_path, false);
2241 if (sl_handle == nullptr) {
2242 JVMCI_THROW_MSG_0(InternalError, err_msg("Error initializing JVMCI runtime %d", runtime->id()));
2243 }
2244 }
2245
2246 if (mirror == nullptr) {
2247 JVMCI_THROW_0(NullPointerException);
2248 }
2249 Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
2250 if (klass == nullptr || !klass->is_instance_klass()) {
2251 JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type");
2252 }
2253
2254 InstanceKlass* iklass = InstanceKlass::cast(klass);
2255 for (int i = 0; i < iklass->methods()->length(); i++) {
2256 methodHandle method(THREAD, iklass->methods()->at(i));
2257 if (method->is_native()) {
2258
2259 // Compute argument size
2260 int args_size = 1 // JNIEnv
2261 + (method->is_static() ? 1 : 0) // class for static methods
2262 + method->size_of_parameters(); // actual parameters
2263
2264 // 1) Try JNI short style
2265 stringStream st;
2266 char* pure_name = NativeLookup::pure_jni_name(method);
2267 guarantee(pure_name != nullptr, "Illegal native method name encountered");
2268 os::print_jni_name_prefix_on(&st, args_size);
2269 st.print_raw(pure_name);
2270 os::print_jni_name_suffix_on(&st, args_size);
2271 char* jni_name = st.as_string();
2272
2273 address entry = (address) os::dll_lookup(sl_handle, jni_name);
2274 if (entry == nullptr) {
2275 // 2) Try JNI long style
2276 st.reset();
2277 char* long_name = NativeLookup::long_jni_name(method);
2278 guarantee(long_name != nullptr, "Illegal native method name encountered");
2279 os::print_jni_name_prefix_on(&st, args_size);
2280 st.print_raw(pure_name);
2281 st.print_raw(long_name);
2282 os::print_jni_name_suffix_on(&st, args_size);
2283 char* jni_long_name = st.as_string();
2284 entry = (address) os::dll_lookup(sl_handle, jni_long_name);
2285 if (entry == nullptr) {
2286 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [neither %s nor %s exist in %s]",
2287 method->name_and_sig_as_C_string(),
2288 jni_name, jni_long_name, sl_path));
2289 }
2290 }
2291
2292 if (method->has_native_function() && entry != method->native_function()) {
2293 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [cannot re-link from " PTR_FORMAT " to " PTR_FORMAT "]",
2294 method->name_and_sig_as_C_string(), p2i(method->native_function()), p2i(entry)));
2295 }
2296 method->set_native_function(entry, Method::native_bind_event_is_interesting);
2297 log_debug(jni, resolve)("[Dynamic-linking native method %s.%s ... JNI] @ " PTR_FORMAT,
2298 method->method_holder()->external_name(),
2299 method->name()->as_C_string(),
2300 p2i((void*) entry));
2301 }
2302 }
2303
2304 typeArrayOop info_oop = oopFactory::new_longArray(4, CHECK_0);
2305 jlongArray info = (jlongArray) JNIHandles::make_local(THREAD, info_oop);
2306 runtime->init_JavaVM_info(info, JVMCI_CHECK_0);
2307 return info;
2308 }
2309
2310 C2V_VMENTRY_PREFIX(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject c2vm))
2311 if (thread == nullptr || thread->libjvmci_runtime() == nullptr) {
2312 // Called from unattached JVMCI shared library thread
2313 return false;
2314 }
2315 if (thread->jni_environment() == env) {
2316 C2V_BLOCK(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject))
2317 JVMCITraceMark jtm("isCurrentThreadAttached");
2318 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2319 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2320 if (runtime == nullptr || !runtime->has_shared_library_javavm()) {
2321 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in isCurrentThreadAttached");
2322 }
2323 JNIEnv* peerEnv;
2324 return runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) == JNI_OK;
2325 }
2326 return true;
2327 C2V_END
2328
2329 C2V_VMENTRY_PREFIX(jlong, getCurrentJavaThread, (JNIEnv* env, jobject c2vm))
2330 if (thread == nullptr) {
2331 // Called from unattached JVMCI shared library thread
2332 return 0L;
2333 }
2334 return (jlong) p2i(thread);
2335 C2V_END
2336
2337 // Attaches a thread started in a JVMCI shared library to a JavaThread and JVMCI runtime.
2338 static void attachSharedLibraryThread(JNIEnv* env, jbyteArray name, jboolean as_daemon) {
2339 JavaVM* javaVM = nullptr;
2340 jint res = env->GetJavaVM(&javaVM);
2341 if (res != JNI_OK) {
2342 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Error getting shared library JavaVM from shared library JNIEnv: %d", res));
2343 }
2344 extern struct JavaVM_ main_vm;
2345 JNIEnv* hotspotEnv;
2346
2347 int name_len = env->GetArrayLength(name);
2348 char name_buf[64]; // Cannot use Resource heap as it requires a current thread
2349 int to_copy = MIN2(name_len, (int) sizeof(name_buf) - 1);
2350 env->GetByteArrayRegion(name, 0, to_copy, (jbyte*) name_buf);
2351 name_buf[to_copy] = '\0';
2352 JavaVMAttachArgs attach_args;
2353 attach_args.version = JNI_VERSION_1_2;
2354 attach_args.name = name_buf;
2355 attach_args.group = nullptr;
2356 res = as_daemon ? main_vm.AttachCurrentThreadAsDaemon((void**)&hotspotEnv, &attach_args) :
2357 main_vm.AttachCurrentThread((void**)&hotspotEnv, &attach_args);
2358 if (res != JNI_OK) {
2359 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Trying to attach thread returned %d", res));
2360 }
2361 JavaThread* thread = get_current_thread(false);
2362 const char* attach_error;
2363 {
2364 // Transition to VM
2365 JVMCI_VM_ENTRY_MARK
2366 attach_error = JVMCIRuntime::attach_shared_library_thread(thread, javaVM);
2367 // Transition back to Native
2368 }
2369 if (attach_error != nullptr) {
2370 JNI_THROW("attachCurrentThread", InternalError, attach_error);
2371 }
2372 }
2373
2374 C2V_VMENTRY_PREFIX(jboolean, attachCurrentThread, (JNIEnv* env, jobject c2vm, jbyteArray name, jboolean as_daemon, jlongArray javaVM_info))
2375 if (thread == nullptr) {
2376 attachSharedLibraryThread(env, name, as_daemon);
2377 return true;
2378 }
2379 if (thread->jni_environment() == env) {
2380 // Called from HotSpot
2381 C2V_BLOCK(jboolean, attachCurrentThread, (JNIEnv* env, jobject, jboolean))
2382 JVMCITraceMark jtm("attachCurrentThread");
2383 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2384
2385 JVMCIRuntime* runtime = JVMCI::compiler_runtime(thread);
2386 JNIEnv* peerJNIEnv;
2387 if (runtime->has_shared_library_javavm()) {
2388 if (runtime->GetEnv(thread, (void**)&peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2389 // Already attached
2390 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0);
2391 return false;
2392 }
2393 }
2394
2395 {
2396 // Ensure the JVMCI shared library runtime is initialized.
2397 JVMCIEnv __peer_jvmci_env__(thread, false, __FILE__, __LINE__);
2398 JVMCIEnv* peerJVMCIEnv = &__peer_jvmci_env__;
2399 HandleMark hm(thread);
2400 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(peerJVMCIEnv);
2401 if (peerJVMCIEnv->has_pending_exception()) {
2402 peerJVMCIEnv->describe_pending_exception(true);
2403 }
2404 char* sl_path;
2405 if (JVMCI::get_shared_library(sl_path, false) == nullptr) {
2406 JVMCI_THROW_MSG_0(InternalError, "Error initializing JVMCI runtime");
2407 }
2408 }
2409
2410 JavaVMAttachArgs attach_args;
2411 attach_args.version = JNI_VERSION_1_2;
2412 attach_args.name = const_cast<char*>(thread->name());
2413 attach_args.group = nullptr;
2414 if (runtime->GetEnv(thread, (void**) &peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2415 return false;
2416 }
2417 jint res = as_daemon ? runtime->AttachCurrentThreadAsDaemon(thread, (void**) &peerJNIEnv, &attach_args) :
2418 runtime->AttachCurrentThread(thread, (void**) &peerJNIEnv, &attach_args);
2419
2420 if (res == JNI_OK) {
2421 guarantee(peerJNIEnv != nullptr, "must be");
2422 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0);
2423 JVMCI_event_1("attached to JavaVM[%d] for JVMCI runtime %d", runtime->get_shared_library_javavm_id(), runtime->id());
2424 return true;
2425 }
2426 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, attach_args.name));
2427 }
2428 // Called from JVMCI shared library
2429 return false;
2430 C2V_END
2431
2432 C2V_VMENTRY_PREFIX(jboolean, detachCurrentThread, (JNIEnv* env, jobject c2vm, jboolean release))
2433 if (thread == nullptr) {
2434 // Called from unattached JVMCI shared library thread
2435 JNI_THROW_("detachCurrentThread", IllegalStateException, "Cannot detach non-attached thread", false);
2436 }
2437 if (thread->jni_environment() == env) {
2438 // Called from HotSpot
2439 C2V_BLOCK(void, detachCurrentThread, (JNIEnv* env, jobject))
2440 JVMCITraceMark jtm("detachCurrentThread");
2441 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2442 requireInHotSpot("detachCurrentThread", JVMCI_CHECK_0);
2443 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2444 if (runtime == nullptr || !runtime->has_shared_library_javavm()) {
2445 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in detachCurrentThread");
2446 }
2447 JNIEnv* peerEnv;
2448
2449 if (runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) != JNI_OK) {
2450 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("Cannot detach non-attached thread: %s", thread->name()));
2451 }
2452 jint res = runtime->DetachCurrentThread(thread);
2453 if (res != JNI_OK) {
2454 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, thread->name()));
2455 }
2456 JVMCI_event_1("detached from JavaVM[%d] for JVMCI runtime %d",
2457 runtime->get_shared_library_javavm_id(), runtime->id());
2458 if (release) {
2459 return runtime->detach_thread(thread, "user thread detach");
2460 }
2461 } else {
2462 // Called from attached JVMCI shared library thread
2463 if (release) {
2464 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread cannot release JVMCI shared library JavaVM", false);
2465 }
2466 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2467 if (runtime == nullptr) {
2468 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread should have a JVMCI runtime", false);
2469 }
2470 {
2471 // Transition to VM
2472 C2V_BLOCK(jboolean, detachCurrentThread, (JNIEnv* env, jobject))
2473 // Cannot destroy shared library JavaVM as we're about to return to it.
2474 runtime->detach_thread(thread, "shared library thread detach", false);
2475 JVMCI_event_1("detaching JVMCI shared library thread from HotSpot JavaVM");
2476 // Transition back to Native
2477 }
2478 extern struct JavaVM_ main_vm;
2479 jint res = main_vm.DetachCurrentThread();
2480 if (res != JNI_OK) {
2481 JNI_THROW_("detachCurrentThread", InternalError, "Cannot detach non-attached thread", false);
2482 }
2483 }
2484 return false;
2485 C2V_END
2486
2487 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle, jboolean callPostTranslation))
2488 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2489 if (obj_handle == nullptr) {
2490 return 0L;
2491 }
2492 JVMCIEnv __peer_jvmci_env__(thread, !JVMCIENV->is_hotspot(), __FILE__, __LINE__);
2493 JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2494 JVMCIEnv* thisEnv = JVMCIENV;
2495
2496 JVMCIObject obj = thisEnv->wrap(obj_handle);
2497 JVMCIObject result;
2498 if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) {
2499 methodHandle method(THREAD, thisEnv->asMethod(obj));
2500 result = peerEnv->get_jvmci_method(method, JVMCI_CHECK_0);
2501 } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) {
2502 Klass* klass = thisEnv->asKlass(obj);
2503 JVMCIKlassHandle klass_handle(THREAD);
2504 klass_handle = klass;
2505 result = peerEnv->get_jvmci_type(klass_handle, JVMCI_CHECK_0);
2506 } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) {
2507 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0);
2508 result = peerEnv->get_jvmci_primitive_type(type);
2509 } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) ||
2510 thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) {
2511 Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0);
2512 result = peerEnv->get_object_constant(constant());
2513 } else if (thisEnv->isa_HotSpotNmethod(obj)) {
2514 if (peerEnv->is_hotspot()) {
2515 nmethod* nm = JVMCIENV->get_nmethod(obj);
2516 if (nm != nullptr) {
2517 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2518 if (data != nullptr) {
2519 // Only the mirror in the HotSpot heap is accessible
2520 // through JVMCINMethodData
2521 oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true);
2522 if (nmethod_mirror != nullptr) {
2523 result = HotSpotJVMCI::wrap(nmethod_mirror);
2524 }
2525 }
2526 }
2527 }
2528
2529 if (result.is_null()) {
2530 JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj);
2531 methodHandle mh(THREAD, thisEnv->asMethod(methodObject));
2532 jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj);
2533 jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj);
2534 JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj);
2535 const char* cstring = name_string.is_null() ? nullptr : thisEnv->as_utf8_string(name_string);
2536 // Create a new HotSpotNmethod instance in the peer runtime
2537 result = peerEnv->new_HotSpotNmethod(mh, cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0);
2538 nmethod* nm = JVMCIENV->get_nmethod(obj);
2539 if (result.is_null()) {
2540 // exception occurred (e.g. OOME) creating a new HotSpotNmethod
2541 } else if (nm == nullptr) {
2542 // nmethod must have been unloaded
2543 } else {
2544 // Link the new HotSpotNmethod to the nmethod
2545 peerEnv->initialize_installed_code(result, nm, JVMCI_CHECK_0);
2546 // Only HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime.
2547 if (peerEnv->is_hotspot()) {
2548 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2549 if (data == nullptr) {
2550 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot set HotSpotNmethod mirror for default nmethod");
2551 }
2552 if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != nullptr) {
2553 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod");
2554 }
2555 oop nmethod_mirror = HotSpotJVMCI::resolve(result);
2556 data->set_nmethod_mirror(nm, nmethod_mirror);
2557 }
2558 }
2559 }
2560 } else {
2561 JVMCI_THROW_MSG_0(IllegalArgumentException,
2562 err_msg("Cannot translate object of type: %s", thisEnv->klass_name(obj)));
2563 }
2564 if (callPostTranslation) {
2565 peerEnv->call_HotSpotJVMCIRuntime_postTranslation(result, JVMCI_CHECK_0);
2566 }
2567 // Propagate any exception that occurred while creating the translated object
2568 if (peerEnv->transfer_pending_exception(thread, thisEnv)) {
2569 return 0L;
2570 }
2571 return (jlong) peerEnv->make_global(result).as_jobject();
2572 }
2573
2574 C2V_VMENTRY_NULL(jobject, unhand, (JNIEnv* env, jobject, jlong obj_handle))
2575 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2576 if (obj_handle == 0L) {
2577 return nullptr;
2578 }
2579 jobject global_handle = (jobject) obj_handle;
2580 JVMCIObject global_handle_obj = JVMCIENV->wrap(global_handle);
2581 jobject result = JVMCIENV->make_local(global_handle_obj).as_jobject();
2582
2583 JVMCIENV->destroy_global(global_handle_obj);
2584 return result;
2585 }
2586
2587 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle))
2588 JVMCIObject code = JVMCIENV->wrap(code_handle);
2589 // Execute this operation for the side effect of updating the InstalledCode state
2590 JVMCIENV->get_nmethod(code);
2591 }
2592
2593 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2594 JVMCIObject code = JVMCIENV->wrap(code_handle);
2595 CodeBlob* cb = JVMCIENV->get_code_blob(code);
2596 if (cb == nullptr) {
2597 return nullptr;
2598 }
2599 // Make a resource copy of code before the allocation causes a safepoint
2600 int code_size = cb->code_size();
2601 jbyte* code_bytes = NEW_RESOURCE_ARRAY(jbyte, code_size);
2602 memcpy(code_bytes, (jbyte*) cb->code_begin(), code_size);
2603
2604 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2605 JVMCIENV->copy_bytes_from(code_bytes, result, 0, code_size);
2606 return JVMCIENV->get_jbyteArray(result);
2607 }
2608
2609 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
2610 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2611 methodHandle m(THREAD, UNPACK_PAIR(Method, method));
2612 oop executable;
2613 if (m->is_initializer()) {
2614 if (m->is_static_initializer()) {
2615 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2616 "Cannot create java.lang.reflect.Method for class initializer");
2617 }
2618 executable = Reflection::new_constructor(m, CHECK_NULL);
2619 } else {
2620 executable = Reflection::new_method(m, false, CHECK_NULL);
2621 }
2622 return JNIHandles::make_local(THREAD, executable);
2623 }
2624
2625 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index))
2626 requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL);
2627 Klass* klass = UNPACK_PAIR(Klass, klass);
2628 if (!klass->is_instance_klass()) {
2629 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2630 err_msg("Expected non-primitive type, got %s", klass->external_name()));
2631 }
2632 InstanceKlass* iklass = InstanceKlass::cast(klass);
2633 Array<u2>* fields = iklass->fields();
2634 if (index < 0 ||index > fields->length()) {
2635 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2636 err_msg("Field index %d out of bounds for %s", index, klass->external_name()));
2637 }
2638 fieldDescriptor fd(iklass, index);
2639 oop reflected = Reflection::new_field(&fd, CHECK_NULL);
2640 return JNIHandles::make_local(THREAD, reflected);
2641 }
2642
2643 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current))
2644 FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address);
2645 int result_length = 0;
2646 for (FailedSpeculation* fs = head; fs != nullptr; fs = fs->next()) {
2647 result_length++;
2648 }
2649 int current_length = 0;
2650 JVMCIObjectArray current_array = nullptr;
2651 if (current != nullptr) {
2652 current_array = JVMCIENV->wrap(current);
2653 current_length = JVMCIENV->get_length(current_array);
2654 if (current_length == result_length) {
2655 // No new failures
2656 return current;
2657 }
2658 }
2659 JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL);
2660 int result_index = 0;
2661 for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) {
2662 assert(fs != nullptr, "npe");
2663 JVMCIPrimitiveArray entry;
2664 if (result_index < current_length) {
2665 entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index);
2666 } else {
2667 entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL);
2668 JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len());
2669 }
2670 JVMCIENV->put_object_at(result, result_index++, entry);
2671 }
2672 return JVMCIENV->get_jobjectArray(result);
2673 }
2674
2675 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
2676 methodHandle method(THREAD, UNPACK_PAIR(Method, method));
2677 MethodData* method_data = method->method_data();
2678 if (method_data == nullptr) {
2679 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
2680 method_data = MethodData::allocate(loader_data, method, CHECK_0);
2681 method->set_method_data(method_data);
2682 }
2683 return (jlong) method_data->get_failed_speculations_address();
2684 }
2685
2686 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address))
2687 FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address);
2688 }
2689
2690 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj))
2691 JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj);
2692 int speculation_len = JVMCIENV->get_length(speculation_handle);
2693 char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len);
2694 JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len);
2695 return FailedSpeculation::add_failed_speculation(nullptr, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len);
2696 }
2697
2698 C2V_VMENTRY(void, callSystemExit, (JNIEnv* env, jobject, jint status))
2699 JavaValue result(T_VOID);
2700 JavaCallArguments jargs(1);
2701 jargs.push_int(status);
2702 JavaCalls::call_static(&result,
2703 vmClasses::System_klass(),
2704 vmSymbols::exit_method_name(),
2705 vmSymbols::int_void_signature(),
2706 &jargs,
2707 CHECK);
2708 }
2709
2710 C2V_VMENTRY_0(jlong, ticksNow, (JNIEnv* env, jobject))
2711 return CompilerEvent::ticksNow();
2712 }
2713
2714 C2V_VMENTRY_0(jint, registerCompilerPhase, (JNIEnv* env, jobject, jstring jphase_name))
2715 #if INCLUDE_JFR
2716 JVMCIObject phase_name = JVMCIENV->wrap(jphase_name);
2717 const char *name = JVMCIENV->as_utf8_string(phase_name);
2718 return CompilerEvent::PhaseEvent::get_phase_id(name, true, true, true);
2719 #else
2720 return -1;
2721 #endif // !INCLUDE_JFR
2722 }
2723
2724 C2V_VMENTRY(void, notifyCompilerPhaseEvent, (JNIEnv* env, jobject, jlong startTime, jint phase, jint compileId, jint level))
2725 EventCompilerPhase event;
2726 if (event.should_commit()) {
2727 CompilerEvent::PhaseEvent::post(event, startTime, phase, compileId, level);
2728 }
2729 }
2730
2731 C2V_VMENTRY(void, notifyCompilerInliningEvent, (JNIEnv* env, jobject, jint compileId, ARGUMENT_PAIR(caller), ARGUMENT_PAIR(callee), jboolean succeeded, jstring jmessage, jint bci))
2732 EventCompilerInlining event;
2733 if (event.should_commit()) {
2734 Method* caller = UNPACK_PAIR(Method, caller);
2735 Method* callee = UNPACK_PAIR(Method, callee);
2736 JVMCIObject message = JVMCIENV->wrap(jmessage);
2737 CompilerEvent::InlineEvent::post(event, compileId, caller, callee, succeeded, JVMCIENV->as_utf8_string(message), bci);
2738 }
2739 }
2740
2741 C2V_VMENTRY(void, setThreadLocalObject, (JNIEnv* env, jobject, jint id, jobject value))
2742 requireInHotSpot("setThreadLocalObject", JVMCI_CHECK);
2743 if (id == 0) {
2744 thread->set_jvmci_reserved_oop0(JNIHandles::resolve(value));
2745 return;
2746 }
2747 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
2748 err_msg("%d is not a valid thread local id", id));
2749 }
2750
2751 C2V_VMENTRY_NULL(jobject, getThreadLocalObject, (JNIEnv* env, jobject, jint id))
2752 requireInHotSpot("getThreadLocalObject", JVMCI_CHECK_NULL);
2753 if (id == 0) {
2754 return JNIHandles::make_local(thread->get_jvmci_reserved_oop0());
2755 }
2756 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
2757 err_msg("%d is not a valid thread local id", id));
2758 }
2759
2760 C2V_VMENTRY(void, setThreadLocalLong, (JNIEnv* env, jobject, jint id, jlong value))
2761 requireInHotSpot("setThreadLocalLong", JVMCI_CHECK);
2762 if (id == 0) {
2763 thread->set_jvmci_reserved0(value);
2764 } else if (id == 1) {
2765 thread->set_jvmci_reserved1(value);
2766 } else {
2767 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
2768 err_msg("%d is not a valid thread local id", id));
2769 }
2770 }
2771
2772 C2V_VMENTRY_0(jlong, getThreadLocalLong, (JNIEnv* env, jobject, jint id))
2773 requireInHotSpot("getThreadLocalLong", JVMCI_CHECK_0);
2774 if (id == 0) {
2775 return thread->get_jvmci_reserved0();
2776 } else if (id == 1) {
2777 return thread->get_jvmci_reserved1();
2778 } else {
2779 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
2780 err_msg("%d is not a valid thread local id", id));
2781 }
2782 }
2783
2784 #define CC (char*) /*cast a literal from (const char*)*/
2785 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
2786
2787 #define STRING "Ljava/lang/String;"
2788 #define OBJECT "Ljava/lang/Object;"
2789 #define CLASS "Ljava/lang/Class;"
2790 #define OBJECTCONSTANT "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;"
2791 #define EXECUTABLE "Ljava/lang/reflect/Executable;"
2792 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;"
2793 #define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;"
2794 #define BYTECODE_FRAME "Ljdk/vm/ci/code/BytecodeFrame;"
2795 #define JAVACONSTANT "Ljdk/vm/ci/meta/JavaConstant;"
2796 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;"
2797 #define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
2798 #define HS_RESOLVED_TYPE "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;"
2799 #define HS_INSTALLED_CODE "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;"
2800 #define HS_NMETHOD "Ljdk/vm/ci/hotspot/HotSpotNmethod;"
2801 #define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
2802 #define HS_CONFIG "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
2803 #define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
2804 #define HS_SPECULATION_LOG "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
2805 #define REFLECTION_EXECUTABLE "Ljava/lang/reflect/Executable;"
2806 #define REFLECTION_FIELD "Ljava/lang/reflect/Field;"
2807
2808 // Types wrapping VM pointers. The ...2 macro is for a pair: (wrapper, pointer)
2809 #define HS_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
2810 #define HS_METHOD2 "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;J"
2811 #define HS_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
2812 #define HS_KLASS2 "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;J"
2813 #define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
2814 #define HS_CONSTANT_POOL2 "Ljdk/vm/ci/hotspot/HotSpotConstantPool;J"
2815
2816 JNINativeMethod CompilerToVM::methods[] = {
2817 {CC "getBytecode", CC "(" HS_METHOD2 ")[B", FN_PTR(getBytecode)},
2818 {CC "getExceptionTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getExceptionTableStart)},
2819 {CC "getExceptionTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getExceptionTableLength)},
2820 {CC "findUniqueConcreteMethod", CC "(" HS_KLASS2 HS_METHOD2 ")" HS_METHOD, FN_PTR(findUniqueConcreteMethod)},
2821 {CC "getImplementor", CC "(" HS_KLASS2 ")" HS_KLASS, FN_PTR(getImplementor)},
2822 {CC "getStackTraceElement", CC "(" HS_METHOD2 "I)" STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)},
2823 {CC "methodIsIgnoredBySecurityStackWalk", CC "(" HS_METHOD2 ")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)},
2824 {CC "setNotInlinableOrCompilable", CC "(" HS_METHOD2 ")V", FN_PTR(setNotInlinableOrCompilable)},
2825 {CC "isCompilable", CC "(" HS_METHOD2 ")Z", FN_PTR(isCompilable)},
2826 {CC "hasNeverInlineDirective", CC "(" HS_METHOD2 ")Z", FN_PTR(hasNeverInlineDirective)},
2827 {CC "shouldInlineMethod", CC "(" HS_METHOD2 ")Z", FN_PTR(shouldInlineMethod)},
2828 {CC "lookupType", CC "(" STRING HS_KLASS2 "Z)" HS_RESOLVED_TYPE, FN_PTR(lookupType)},
2829 {CC "getArrayType", CC "(C" HS_KLASS2 ")" HS_KLASS, FN_PTR(getArrayType)},
2830 {CC "lookupClass", CC "(" CLASS ")" HS_RESOLVED_TYPE, FN_PTR(lookupClass)},
2831 {CC "lookupNameInPool", CC "(" HS_CONSTANT_POOL2 "I)" STRING, FN_PTR(lookupNameInPool)},
2832 {CC "lookupNameAndTypeRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(lookupNameAndTypeRefIndexInPool)},
2833 {CC "lookupSignatureInPool", CC "(" HS_CONSTANT_POOL2 "I)" STRING, FN_PTR(lookupSignatureInPool)},
2834 {CC "lookupKlassRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(lookupKlassRefIndexInPool)},
2835 {CC "lookupKlassInPool", CC "(" HS_CONSTANT_POOL2 "I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)},
2836 {CC "lookupAppendixInPool", CC "(" HS_CONSTANT_POOL2 "I)" OBJECTCONSTANT, FN_PTR(lookupAppendixInPool)},
2837 {CC "lookupMethodInPool", CC "(" HS_CONSTANT_POOL2 "IB" HS_METHOD2 ")" HS_METHOD, FN_PTR(lookupMethodInPool)},
2838 {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(constantPoolRemapInstructionOperandFromCache)},
2839 {CC "resolveBootstrapMethod", CC "(" HS_CONSTANT_POOL2 "I)[" OBJECT, FN_PTR(resolveBootstrapMethod)},
2840 {CC "getUncachedStringInPool", CC "(" HS_CONSTANT_POOL2 "I)" JAVACONSTANT, FN_PTR(getUncachedStringInPool)},
2841 {CC "resolvePossiblyCachedConstantInPool", CC "(" HS_CONSTANT_POOL2 "I)" JAVACONSTANT, FN_PTR(resolvePossiblyCachedConstantInPool)},
2842 {CC "resolveTypeInPool", CC "(" HS_CONSTANT_POOL2 "I)" HS_KLASS, FN_PTR(resolveTypeInPool)},
2843 {CC "resolveFieldInPool", CC "(" HS_CONSTANT_POOL2 "I" HS_METHOD2 "B[I)" HS_KLASS, FN_PTR(resolveFieldInPool)},
2844 {CC "resolveInvokeDynamicInPool", CC "(" HS_CONSTANT_POOL2 "I)V", FN_PTR(resolveInvokeDynamicInPool)},
2845 {CC "resolveInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "I)V", FN_PTR(resolveInvokeHandleInPool)},
2846 {CC "isResolvedInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(isResolvedInvokeHandleInPool)},
2847 {CC "resolveMethod", CC "(" HS_KLASS2 HS_METHOD2 HS_KLASS2 ")" HS_METHOD, FN_PTR(resolveMethod)},
2848 {CC "getSignaturePolymorphicHolders", CC "()[" STRING, FN_PTR(getSignaturePolymorphicHolders)},
2849 {CC "getVtableIndexForInterfaceMethod", CC "(" HS_KLASS2 HS_METHOD2 ")I", FN_PTR(getVtableIndexForInterfaceMethod)},
2850 {CC "getClassInitializer", CC "(" HS_KLASS2 ")" HS_METHOD, FN_PTR(getClassInitializer)},
2851 {CC "hasFinalizableSubclass", CC "(" HS_KLASS2 ")Z", FN_PTR(hasFinalizableSubclass)},
2852 {CC "getMaxCallTargetOffset", CC "(J)J", FN_PTR(getMaxCallTargetOffset)},
2853 {CC "asResolvedJavaMethod", CC "(" EXECUTABLE ")" HS_METHOD, FN_PTR(asResolvedJavaMethod)},
2854 {CC "getResolvedJavaMethod", CC "(" OBJECTCONSTANT "J)" HS_METHOD, FN_PTR(getResolvedJavaMethod)},
2855 {CC "getConstantPool", CC "(" OBJECT "JZ)" HS_CONSTANT_POOL, FN_PTR(getConstantPool)},
2856 {CC "getResolvedJavaType0", CC "(Ljava/lang/Object;JZ)" HS_KLASS, FN_PTR(getResolvedJavaType0)},
2857 {CC "readConfiguration", CC "()[" OBJECT, FN_PTR(readConfiguration)},
2858 {CC "installCode0", CC "(JJZ" HS_COMPILED_CODE "[" OBJECT INSTALLED_CODE "J[B)I", FN_PTR(installCode0)},
2859 {CC "getInstallCodeFlags", CC "()I", FN_PTR(getInstallCodeFlags)},
2860 {CC "resetCompilationStatistics", CC "()V", FN_PTR(resetCompilationStatistics)},
2861 {CC "disassembleCodeBlob", CC "(" INSTALLED_CODE ")" STRING, FN_PTR(disassembleCodeBlob)},
2862 {CC "executeHotSpotNmethod", CC "([" OBJECT HS_NMETHOD ")" OBJECT, FN_PTR(executeHotSpotNmethod)},
2863 {CC "getLineNumberTable", CC "(" HS_METHOD2 ")[J", FN_PTR(getLineNumberTable)},
2864 {CC "getLocalVariableTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getLocalVariableTableStart)},
2865 {CC "getLocalVariableTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getLocalVariableTableLength)},
2866 {CC "reprofile", CC "(" HS_METHOD2 ")V", FN_PTR(reprofile)},
2867 {CC "invalidateHotSpotNmethod", CC "(" HS_NMETHOD "Z)V", FN_PTR(invalidateHotSpotNmethod)},
2868 {CC "collectCounters", CC "()[J", FN_PTR(collectCounters)},
2869 {CC "getCountersSize", CC "()I", FN_PTR(getCountersSize)},
2870 {CC "setCountersSize", CC "(I)Z", FN_PTR(setCountersSize)},
2871 {CC "allocateCompileId", CC "(" HS_METHOD2 "I)I", FN_PTR(allocateCompileId)},
2872 {CC "isMature", CC "(J)Z", FN_PTR(isMature)},
2873 {CC "hasCompiledCodeForOSR", CC "(" HS_METHOD2 "II)Z", FN_PTR(hasCompiledCodeForOSR)},
2874 {CC "getSymbol", CC "(J)" STRING, FN_PTR(getSymbol)},
2875 {CC "getSignatureName", CC "(J)" STRING, FN_PTR(getSignatureName)},
2876 {CC "iterateFrames", CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT, FN_PTR(iterateFrames)},
2877 {CC "materializeVirtualObjects", CC "(" HS_STACK_FRAME_REF "Z)V", FN_PTR(materializeVirtualObjects)},
2878 {CC "shouldDebugNonSafepoints", CC "()Z", FN_PTR(shouldDebugNonSafepoints)},
2879 {CC "writeDebugOutput", CC "(JIZ)V", FN_PTR(writeDebugOutput)},
2880 {CC "flushDebugOutput", CC "()V", FN_PTR(flushDebugOutput)},
2881 {CC "methodDataProfileDataSize", CC "(JI)I", FN_PTR(methodDataProfileDataSize)},
2882 {CC "interpreterFrameSize", CC "(" BYTECODE_FRAME ")I", FN_PTR(interpreterFrameSize)},
2883 {CC "compileToBytecode", CC "(" OBJECTCONSTANT ")V", FN_PTR(compileToBytecode)},
2884 {CC "getFlagValue", CC "(" STRING ")" OBJECT, FN_PTR(getFlagValue)},
2885 {CC "getInterfaces", CC "(" HS_KLASS2 ")[" HS_KLASS, FN_PTR(getInterfaces)},
2886 {CC "getComponentType", CC "(" HS_KLASS2 ")" HS_RESOLVED_TYPE, FN_PTR(getComponentType)},
2887 {CC "ensureInitialized", CC "(" HS_KLASS2 ")V", FN_PTR(ensureInitialized)},
2888 {CC "ensureLinked", CC "(" HS_KLASS2 ")V", FN_PTR(ensureLinked)},
2889 {CC "getIdentityHashCode", CC "(" OBJECTCONSTANT ")I", FN_PTR(getIdentityHashCode)},
2890 {CC "isInternedString", CC "(" OBJECTCONSTANT ")Z", FN_PTR(isInternedString)},
2891 {CC "unboxPrimitive", CC "(" OBJECTCONSTANT ")" OBJECT, FN_PTR(unboxPrimitive)},
2892 {CC "boxPrimitive", CC "(" OBJECT ")" OBJECTCONSTANT, FN_PTR(boxPrimitive)},
2893 {CC "getDeclaredConstructors", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredConstructors)},
2894 {CC "getDeclaredMethods", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredMethods)},
2895 {CC "readStaticFieldValue", CC "(" HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readStaticFieldValue)},
2896 {CC "readFieldValue", CC "(" OBJECTCONSTANT HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readFieldValue)},
2897 {CC "isInstance", CC "(" HS_KLASS2 OBJECTCONSTANT ")Z", FN_PTR(isInstance)},
2898 {CC "isAssignableFrom", CC "(" HS_KLASS2 HS_KLASS2 ")Z", FN_PTR(isAssignableFrom)},
2899 {CC "isTrustedForIntrinsics", CC "(" HS_KLASS2 ")Z", FN_PTR(isTrustedForIntrinsics)},
2900 {CC "asJavaType", CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE, FN_PTR(asJavaType)},
2901 {CC "asString", CC "(" OBJECTCONSTANT ")" STRING, FN_PTR(asString)},
2902 {CC "equals", CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z", FN_PTR(equals)},
2903 {CC "getJavaMirror", CC "(" HS_KLASS2 ")" OBJECTCONSTANT, FN_PTR(getJavaMirror)},
2904 {CC "getArrayLength", CC "(" OBJECTCONSTANT ")I", FN_PTR(getArrayLength)},
2905 {CC "readArrayElement", CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;", FN_PTR(readArrayElement)},
2906 {CC "arrayBaseOffset", CC "(C)I", FN_PTR(arrayBaseOffset)},
2907 {CC "arrayIndexScale", CC "(C)I", FN_PTR(arrayIndexScale)},
2908 {CC "releaseClearedOopHandles", CC "()V", FN_PTR(releaseClearedOopHandles)},
2909 {CC "registerNativeMethods", CC "(" CLASS ")[J", FN_PTR(registerNativeMethods)},
2910 {CC "isCurrentThreadAttached", CC "()Z", FN_PTR(isCurrentThreadAttached)},
2911 {CC "getCurrentJavaThread", CC "()J", FN_PTR(getCurrentJavaThread)},
2912 {CC "attachCurrentThread", CC "([BZ[J)Z", FN_PTR(attachCurrentThread)},
2913 {CC "detachCurrentThread", CC "(Z)Z", FN_PTR(detachCurrentThread)},
2914 {CC "translate", CC "(" OBJECT "Z)J", FN_PTR(translate)},
2915 {CC "unhand", CC "(J)" OBJECT, FN_PTR(unhand)},
2916 {CC "updateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(updateHotSpotNmethod)},
2917 {CC "getCode", CC "(" HS_INSTALLED_CODE ")[B", FN_PTR(getCode)},
2918 {CC "asReflectionExecutable", CC "(" HS_METHOD2 ")" REFLECTION_EXECUTABLE, FN_PTR(asReflectionExecutable)},
2919 {CC "asReflectionField", CC "(" HS_KLASS2 "I)" REFLECTION_FIELD, FN_PTR(asReflectionField)},
2920 {CC "getFailedSpeculations", CC "(J[[B)[[B", FN_PTR(getFailedSpeculations)},
2921 {CC "getFailedSpeculationsAddress", CC "(" HS_METHOD2 ")J", FN_PTR(getFailedSpeculationsAddress)},
2922 {CC "releaseFailedSpeculations", CC "(J)V", FN_PTR(releaseFailedSpeculations)},
2923 {CC "addFailedSpeculation", CC "(J[B)Z", FN_PTR(addFailedSpeculation)},
2924 {CC "callSystemExit", CC "(I)V", FN_PTR(callSystemExit)},
2925 {CC "ticksNow", CC "()J", FN_PTR(ticksNow)},
2926 {CC "getThreadLocalObject", CC "(I)" OBJECT, FN_PTR(getThreadLocalObject)},
2927 {CC "setThreadLocalObject", CC "(I" OBJECT ")V", FN_PTR(setThreadLocalObject)},
2928 {CC "getThreadLocalLong", CC "(I)J", FN_PTR(getThreadLocalLong)},
2929 {CC "setThreadLocalLong", CC "(IJ)V", FN_PTR(setThreadLocalLong)},
2930 {CC "registerCompilerPhase", CC "(" STRING ")I", FN_PTR(registerCompilerPhase)},
2931 {CC "notifyCompilerPhaseEvent", CC "(JIII)V", FN_PTR(notifyCompilerPhaseEvent)},
2932 {CC "notifyCompilerInliningEvent", CC "(I" HS_METHOD2 HS_METHOD2 "ZLjava/lang/String;I)V", FN_PTR(notifyCompilerInliningEvent)},
2933 };
2934
2935 int CompilerToVM::methods_count() {
2936 return sizeof(methods) / sizeof(JNINativeMethod);
2937 }