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