1 /*
2 * Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #include "precompiled.hpp"
25 #include "classfile/classLoaderData.inline.hpp"
26 #include "classfile/javaClasses.inline.hpp"
27 #include "classfile/stringTable.hpp"
28 #include "classfile/symbolTable.hpp"
29 #include "classfile/systemDictionary.hpp"
30 #include "classfile/vmClasses.hpp"
31 #include "code/scopeDesc.hpp"
32 #include "compiler/compileBroker.hpp"
33 #include "compiler/compilerEvent.hpp"
34 #include "compiler/disassembler.hpp"
35 #include "compiler/oopMap.hpp"
36 #include "interpreter/linkResolver.hpp"
37 #include "interpreter/bytecodeStream.hpp"
38 #include "jfr/jfrEvents.hpp"
39 #include "jvmci/jvmciCompilerToVM.hpp"
40 #include "jvmci/jvmciCodeInstaller.hpp"
41 #include "jvmci/jvmciRuntime.hpp"
42 #include "logging/log.hpp"
43 #include "logging/logTag.hpp"
44 #include "memory/oopFactory.hpp"
45 #include "memory/universe.hpp"
46 #include "oops/constantPool.inline.hpp"
47 #include "oops/instanceMirrorKlass.hpp"
48 #include "oops/instanceKlass.inline.hpp"
49 #include "oops/method.inline.hpp"
50 #include "oops/typeArrayOop.inline.hpp"
51 #include "prims/jvmtiExport.hpp"
52 #include "prims/methodHandles.hpp"
53 #include "prims/nativeLookup.hpp"
54 #include "runtime/atomic.hpp"
55 #include "runtime/deoptimization.hpp"
56 #include "runtime/fieldDescriptor.inline.hpp"
57 #include "runtime/frame.inline.hpp"
58 #include "runtime/globals_extension.hpp"
59 #include "runtime/interfaceSupport.inline.hpp"
60 #include "runtime/jniHandles.inline.hpp"
61 #include "runtime/reflectionUtils.hpp"
62 #include "runtime/stackFrameStream.inline.hpp"
63 #include "runtime/timerTrace.hpp"
64 #include "runtime/vframe_hp.hpp"
65 #include "runtime/vframe.inline.hpp"
66
67 JVMCIKlassHandle::JVMCIKlassHandle(Thread* thread, Klass* klass) {
68 _thread = thread;
69 _klass = klass;
70 if (klass != NULL) {
71 _holder = Handle(_thread, klass->klass_holder());
72 }
73 }
74
75 JVMCIKlassHandle& JVMCIKlassHandle::operator=(Klass* klass) {
76 _klass = klass;
77 if (klass != NULL) {
78 _holder = Handle(_thread, klass->klass_holder());
79 }
80 return *this;
81 }
82
83 static void requireInHotSpot(const char* caller, JVMCI_TRAPS) {
84 if (!JVMCIENV->is_hotspot()) {
85 JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot call %s from JVMCI shared library", caller));
86 }
87 }
88
89 void JNIHandleMark::push_jni_handle_block(JavaThread* thread) {
90 if (thread != NULL) {
91 // Allocate a new block for JNI handles.
92 // Inlined code from jni_PushLocalFrame()
93 JNIHandleBlock* java_handles = thread->active_handles();
94 JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread);
95 assert(compile_handles != NULL && java_handles != NULL, "should not be NULL");
96 compile_handles->set_pop_frame_link(java_handles);
97 thread->set_active_handles(compile_handles);
98 }
99 }
100
101 void JNIHandleMark::pop_jni_handle_block(JavaThread* thread) {
102 if (thread != NULL) {
103 // Release our JNI handle block
104 JNIHandleBlock* compile_handles = thread->active_handles();
105 JNIHandleBlock* java_handles = compile_handles->pop_frame_link();
106 thread->set_active_handles(java_handles);
107 compile_handles->set_pop_frame_link(NULL);
108 JNIHandleBlock::release_block(compile_handles, thread); // may block
109 }
110 }
111
112 class JVMCITraceMark : public StackObj {
113 const char* _msg;
114 public:
115 JVMCITraceMark(const char* msg) {
116 _msg = msg;
117 JVMCI_event_2("Enter %s", _msg);
118 }
119 ~JVMCITraceMark() {
120 JVMCI_event_2(" Exit %s", _msg);
121 }
122 };
123
124
125 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) {
126 assert(_index < _args->length(), "out of bounds");
127 oop arg=((objArrayOop) (_args))->obj_at(_index++);
128 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
129 return Handle(Thread::current(), arg);
130 }
131
132 // Bring the JVMCI compiler thread into the VM state.
133 #define JVMCI_VM_ENTRY_MARK \
134 MACOS_AARCH64_ONLY(ThreadWXEnable __wx(WXWrite, thread)); \
135 ThreadInVMfromNative __tiv(thread); \
136 HandleMarkCleaner __hm(thread); \
137 JavaThread* THREAD = thread; \
138 debug_only(VMNativeEntryWrapper __vew;)
139
140 // Native method block that transitions current thread to '_thread_in_vm'.
141 #define C2V_BLOCK(result_type, name, signature) \
142 JVMCI_VM_ENTRY_MARK; \
143 ResourceMark rm; \
144 JNI_JVMCIENV(JVMCI::compilation_tick(thread), env);
145
146 static JavaThread* get_current_thread(bool allow_null=true) {
147 Thread* thread = Thread::current_or_null_safe();
148 if (thread == NULL) {
149 assert(allow_null, "npe");
150 return NULL;
151 }
152 return JavaThread::cast(thread);
153 }
154
155 // Entry to native method implementation that transitions
156 // current thread to '_thread_in_vm'.
157 #define C2V_VMENTRY(result_type, name, signature) \
158 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
159 JavaThread* thread = get_current_thread(); \
160 if (thread == NULL) { \
161 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
162 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
163 return; \
164 } \
165 JVMCITraceMark jtm("CompilerToVM::" #name); \
166 C2V_BLOCK(result_type, name, signature)
167
168 #define C2V_VMENTRY_(result_type, name, signature, result) \
169 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
170 JavaThread* thread = get_current_thread(); \
171 if (thread == NULL) { \
172 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \
173 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
174 return result; \
175 } \
176 JVMCITraceMark jtm("CompilerToVM::" #name); \
177 C2V_BLOCK(result_type, name, signature)
178
179 #define C2V_VMENTRY_NULL(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, NULL)
180 #define C2V_VMENTRY_0(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, 0)
181
182 // Entry to native method implementation that does not transition
183 // current thread to '_thread_in_vm'.
184 #define C2V_VMENTRY_PREFIX(result_type, name, signature) \
185 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
186 JavaThread* thread = get_current_thread();
187
188 #define C2V_END }
189
190 #define JNI_THROW(caller, name, msg) do { \
191 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
192 if (__throw_res != JNI_OK) { \
193 tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \
194 } \
195 return; \
196 } while (0);
197
198 #define JNI_THROW_(caller, name, msg, result) do { \
199 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \
200 if (__throw_res != JNI_OK) { \
201 tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \
202 } \
203 return result; \
204 } while (0)
205
206 jobjectArray readConfiguration0(JNIEnv *env, JVMCI_TRAPS);
207
208 C2V_VMENTRY_NULL(jobjectArray, readConfiguration, (JNIEnv* env))
209 jobjectArray config = readConfiguration0(env, JVMCI_CHECK_NULL);
210 return config;
211 }
212
213 C2V_VMENTRY_NULL(jobject, getFlagValue, (JNIEnv* env, jobject c2vm, jobject name_handle))
214 #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();
215 #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();
216 JVMCIObject name = JVMCIENV->wrap(name_handle);
217 if (name.is_null()) {
218 JVMCI_THROW_NULL(NullPointerException);
219 }
220 const char* cstring = JVMCIENV->as_utf8_string(name);
221 const JVMFlag* flag = JVMFlag::find_declared_flag(cstring);
222 if (flag == NULL) {
223 return c2vm;
224 }
225 if (flag->is_bool()) {
226 jvalue prim;
227 prim.z = flag->get_bool();
228 JVMCIObject box = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL);
229 return JVMCIENV->get_jobject(box);
230 } else if (flag->is_ccstr()) {
231 JVMCIObject value = JVMCIENV->create_string(flag->get_ccstr(), JVMCI_CHECK_NULL);
232 return JVMCIENV->get_jobject(value);
233 } else if (flag->is_intx()) {
234 RETURN_BOXED_LONG(flag->get_intx());
235 } else if (flag->is_int()) {
236 RETURN_BOXED_LONG(flag->get_int());
237 } else if (flag->is_uint()) {
238 RETURN_BOXED_LONG(flag->get_uint());
239 } else if (flag->is_uint64_t()) {
240 RETURN_BOXED_LONG(flag->get_uint64_t());
241 } else if (flag->is_size_t()) {
242 RETURN_BOXED_LONG(flag->get_size_t());
243 } else if (flag->is_uintx()) {
244 RETURN_BOXED_LONG(flag->get_uintx());
245 } else if (flag->is_double()) {
246 RETURN_BOXED_DOUBLE(flag->get_double());
247 } else {
248 JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->name(), flag->type_string());
249 }
250 #undef RETURN_BOXED_LONG
251 #undef RETURN_BOXED_DOUBLE
252 C2V_END
253
254 C2V_VMENTRY_NULL(jbyteArray, getBytecode, (JNIEnv* env, jobject, jobject jvmci_method))
255 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
256
257 int code_size = method->code_size();
258 jbyte* reconstituted_code = NEW_RESOURCE_ARRAY(jbyte, code_size);
259
260 guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
261 // iterate over all bytecodes and replace non-Java bytecodes
262
263 for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
264 Bytecodes::Code code = s.code();
265 Bytecodes::Code raw_code = s.raw_code();
266 int bci = s.bci();
267 int len = s.instruction_size();
268
269 // Restore original byte code.
270 reconstituted_code[bci] = (jbyte) (s.is_wide()? Bytecodes::_wide : code);
271 if (len > 1) {
272 memcpy(reconstituted_code + (bci + 1), s.bcp()+1, len-1);
273 }
274
275 if (len > 1) {
276 // Restore the big-endian constant pool indexes.
277 // Cf. Rewriter::scan_method
278 switch (code) {
279 case Bytecodes::_getstatic:
280 case Bytecodes::_putstatic:
281 case Bytecodes::_getfield:
282 case Bytecodes::_putfield:
283 case Bytecodes::_invokevirtual:
284 case Bytecodes::_invokespecial:
285 case Bytecodes::_invokestatic:
286 case Bytecodes::_invokeinterface:
287 case Bytecodes::_invokehandle: {
288 int cp_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
289 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
290 break;
291 }
292
293 case Bytecodes::_invokedynamic: {
294 int cp_index = Bytes::get_native_u4((address) reconstituted_code + (bci + 1));
295 Bytes::put_Java_u4((address) reconstituted_code + (bci + 1), (u4) cp_index);
296 break;
297 }
298
299 default:
300 break;
301 }
302
303 // Not all ldc byte code are rewritten.
304 switch (raw_code) {
305 case Bytecodes::_fast_aldc: {
306 int cpc_index = reconstituted_code[bci + 1] & 0xff;
307 int cp_index = method->constants()->object_to_cp_index(cpc_index);
308 assert(cp_index < method->constants()->length(), "sanity check");
309 reconstituted_code[bci + 1] = (jbyte) cp_index;
310 break;
311 }
312
313 case Bytecodes::_fast_aldc_w: {
314 int cpc_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
315 int cp_index = method->constants()->object_to_cp_index(cpc_index);
316 assert(cp_index < method->constants()->length(), "sanity check");
317 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
318 break;
319 }
320
321 default:
322 break;
323 }
324 }
325 }
326
327 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
328 JVMCIENV->copy_bytes_from(reconstituted_code, result, 0, code_size);
329 return JVMCIENV->get_jbyteArray(result);
330 C2V_END
331
332 C2V_VMENTRY_0(jint, getExceptionTableLength, (JNIEnv* env, jobject, jobject jvmci_method))
333 Method* method = JVMCIENV->asMethod(jvmci_method);
334 return method->exception_table_length();
335 C2V_END
336
337 C2V_VMENTRY_0(jlong, getExceptionTableStart, (JNIEnv* env, jobject, jobject jvmci_method))
338 Method* method = JVMCIENV->asMethod(jvmci_method);
339 if (method->exception_table_length() == 0) {
340 return 0L;
341 }
342 return (jlong) (address) method->exception_table_start();
343 C2V_END
344
345 C2V_VMENTRY_NULL(jobject, asResolvedJavaMethod, (JNIEnv* env, jobject, jobject executable_handle))
346 requireInHotSpot("asResolvedJavaMethod", JVMCI_CHECK_NULL);
347 oop executable = JNIHandles::resolve(executable_handle);
348 oop mirror = NULL;
349 int slot = 0;
350
351 if (executable->klass() == vmClasses::reflect_Constructor_klass()) {
352 mirror = java_lang_reflect_Constructor::clazz(executable);
353 slot = java_lang_reflect_Constructor::slot(executable);
354 } else {
355 assert(executable->klass() == vmClasses::reflect_Method_klass(), "wrong type");
356 mirror = java_lang_reflect_Method::clazz(executable);
357 slot = java_lang_reflect_Method::slot(executable);
358 }
359 Klass* holder = java_lang_Class::as_Klass(mirror);
360 methodHandle method (THREAD, InstanceKlass::cast(holder)->method_with_idnum(slot));
361 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
362 return JVMCIENV->get_jobject(result);
363 }
364
365 C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset))
366 Method* method = NULL;
367 JVMCIObject base_object = JVMCIENV->wrap(base);
368 if (base_object.is_null()) {
369 method = *((Method**)(offset));
370 } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
371 Handle obj = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
372 if (obj->is_a(vmClasses::ResolvedMethodName_klass())) {
373 method = (Method*) (intptr_t) obj->long_field(offset);
374 } else {
375 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", obj->klass()->external_name()));
376 }
377 } else if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(base_object)) {
378 method = JVMCIENV->asMethod(base_object);
379 }
380 if (method == NULL) {
381 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
382 }
383 assert (method->is_method(), "invalid read");
384 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, method), JVMCI_CHECK_NULL);
385 return JVMCIENV->get_jobject(result);
386 }
387
388 C2V_VMENTRY_NULL(jobject, getConstantPool, (JNIEnv* env, jobject, jobject object_handle))
389 ConstantPool* cp = NULL;
390 JVMCIObject object = JVMCIENV->wrap(object_handle);
391 if (object.is_null()) {
392 JVMCI_THROW_NULL(NullPointerException);
393 }
394 if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(object)) {
395 cp = JVMCIENV->asMethod(object)->constMethod()->constants();
396 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(object)) {
397 cp = InstanceKlass::cast(JVMCIENV->asKlass(object))->constants();
398 } else {
399 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
400 err_msg("Unexpected type: %s", JVMCIENV->klass_name(object)));
401 }
402 assert(cp != NULL, "npe");
403
404 JVMCIObject result = JVMCIENV->get_jvmci_constant_pool(constantPoolHandle(THREAD, cp), JVMCI_CHECK_NULL);
405 return JVMCIENV->get_jobject(result);
406 }
407
408 C2V_VMENTRY_NULL(jobject, getResolvedJavaType0, (JNIEnv* env, jobject, jobject base, jlong offset, jboolean compressed))
409 JVMCIKlassHandle klass(THREAD);
410 JVMCIObject base_object = JVMCIENV->wrap(base);
411 jlong base_address = 0;
412 if (base_object.is_non_null() && offset == oopDesc::klass_offset_in_bytes()) {
413 // klass = JVMCIENV->unhandle(base_object)->klass();
414 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
415 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
416 klass = base_oop->klass();
417 } else {
418 assert(false, "What types are we actually expecting here?");
419 }
420 } else if (!compressed) {
421 if (base_object.is_non_null()) {
422 if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(base_object)) {
423 base_address = (intptr_t) JVMCIENV->asMethod(base_object);
424 } else if (JVMCIENV->isa_HotSpotConstantPool(base_object)) {
425 base_address = (intptr_t) JVMCIENV->asConstantPool(base_object);
426 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
427 base_address = (intptr_t) JVMCIENV->asKlass(base_object);
428 } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
429 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
430 if (base_oop->is_a(vmClasses::Class_klass())) {
431 base_address = cast_from_oop<jlong>(base_oop());
432 }
433 }
434 if (base_address == 0) {
435 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
436 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", JVMCIENV->klass_name(base_object), offset, compressed ? "true" : "false"));
437 }
438 }
439 klass = *((Klass**) (intptr_t) (base_address + offset));
440 } else {
441 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
442 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s",
443 base_object.is_non_null() ? JVMCIENV->klass_name(base_object) : "null",
444 offset, compressed ? "true" : "false"));
445 }
446 assert (klass == NULL || klass->is_klass(), "invalid read");
447 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
448 return JVMCIENV->get_jobject(result);
449 }
450
451 C2V_VMENTRY_NULL(jobject, findUniqueConcreteMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method))
452 methodHandle method (THREAD, JVMCIENV->asMethod(jvmci_method));
453 InstanceKlass* holder = InstanceKlass::cast(JVMCIENV->asKlass(jvmci_type));
454 if (holder->is_interface()) {
455 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Interface %s should be handled in Java code", holder->external_name()));
456 }
457 if (method->can_be_statically_bound()) {
458 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()));
459 }
460
461 methodHandle ucm;
462 {
463 MutexLocker locker(Compile_lock);
464 ucm = methodHandle(THREAD, Dependencies::find_unique_concrete_method(holder, method()));
465 }
466 JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL);
467 return JVMCIENV->get_jobject(result);
468 C2V_END
469
470 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, jobject jvmci_type))
471 Klass* klass = JVMCIENV->asKlass(jvmci_type);
472 if (!klass->is_interface()) {
473 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
474 err_msg("Expected interface type, got %s", klass->external_name()));
475 }
476 InstanceKlass* iklass = InstanceKlass::cast(klass);
477 JVMCIKlassHandle handle(THREAD);
478 {
479 // Need Compile_lock around implementor()
480 MutexLocker locker(Compile_lock);
481 handle = iklass->implementor();
482 }
483 JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
484 return JVMCIENV->get_jobject(implementor);
485 C2V_END
486
487 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, jobject jvmci_method))
488 Method* method = JVMCIENV->asMethod(jvmci_method);
489 return method->is_ignored_by_security_stack_walk();
490 C2V_END
491
492 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, jobject jvmci_method))
493 Method* method = JVMCIENV->asMethod(jvmci_method);
494 // Skip redefined methods
495 if (method->is_old()) {
496 return false;
497 }
498 return !method->is_not_compilable(CompLevel_full_optimization);
499 C2V_END
500
501 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, jobject jvmci_method))
502 methodHandle method (THREAD, JVMCIENV->asMethod(jvmci_method));
503 return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
504 C2V_END
505
506 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, jobject jvmci_method))
507 methodHandle method (THREAD, JVMCIENV->asMethod(jvmci_method));
508 return CompilerOracle::should_inline(method) || method->force_inline();
509 C2V_END
510
511 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, jclass accessing_class, jboolean resolve))
512 JVMCIObject name = JVMCIENV->wrap(jname);
513 const char* str = JVMCIENV->as_utf8_string(name);
514 TempNewSymbol class_name = SymbolTable::new_symbol(str);
515
516 if (class_name->utf8_length() <= 1) {
517 JVMCI_THROW_MSG_0(InternalError, err_msg("Primitive type %s should be handled in Java code", class_name->as_C_string()));
518 }
519
520 JVMCIKlassHandle resolved_klass(THREAD);
521 Klass* accessing_klass = NULL;
522 Handle class_loader;
523 Handle protection_domain;
524 if (accessing_class != NULL) {
525 accessing_klass = JVMCIENV->asKlass(accessing_class);
526 class_loader = Handle(THREAD, accessing_klass->class_loader());
527 protection_domain = Handle(THREAD, accessing_klass->protection_domain());
528 } else {
529 // Use the System class loader
530 class_loader = Handle(THREAD, SystemDictionary::java_system_loader());
531 JVMCIENV->runtime()->initialize(JVMCIENV);
532 }
533
534 if (resolve) {
535 resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_NULL);
536 if (resolved_klass == NULL) {
537 JVMCI_THROW_MSG_NULL(ClassNotFoundException, str);
538 }
539 } else {
540 if (Signature::has_envelope(class_name)) {
541 // This is a name from a signature. Strip off the trimmings.
542 // Call recursive to keep scope of strippedsym.
543 TempNewSymbol strippedsym = Signature::strip_envelope(class_name);
544 resolved_klass = SystemDictionary::find_instance_klass(strippedsym,
545 class_loader,
546 protection_domain);
547 } else if (Signature::is_array(class_name)) {
548 SignatureStream ss(class_name, false);
549 int ndim = ss.skip_array_prefix();
550 if (ss.type() == T_OBJECT) {
551 Symbol* strippedsym = ss.as_symbol();
552 resolved_klass = SystemDictionary::find_instance_klass(strippedsym,
553 class_loader,
554 protection_domain);
555 if (!resolved_klass.is_null()) {
556 resolved_klass = resolved_klass->array_klass(ndim, CHECK_NULL);
557 }
558 } else {
559 resolved_klass = TypeArrayKlass::cast(Universe::typeArrayKlassObj(ss.type()))->array_klass(ndim, CHECK_NULL);
560 }
561 } else {
562 resolved_klass = SystemDictionary::find_instance_klass(class_name,
563 class_loader,
564 protection_domain);
565 }
566 }
567 JVMCIObject result = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
568 return JVMCIENV->get_jobject(result);
569 C2V_END
570
571 C2V_VMENTRY_NULL(jobject, getArrayType, (JNIEnv* env, jobject, jobject jvmci_type))
572 if (jvmci_type == NULL) {
573 JVMCI_THROW_0(NullPointerException);
574 }
575
576 JVMCIObject jvmci_type_object = JVMCIENV->wrap(jvmci_type);
577 JVMCIKlassHandle array_klass(THREAD);
578 if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(jvmci_type_object)) {
579 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(jvmci_type_object), JVMCI_CHECK_0);
580 if (type == T_VOID) {
581 return NULL;
582 }
583 array_klass = Universe::typeArrayKlassObj(type);
584 if (array_klass == NULL) {
585 JVMCI_THROW_MSG_NULL(InternalError, err_msg("No array klass for primitive type %s", type2name(type)));
586 }
587 } else {
588 Klass* klass = JVMCIENV->asKlass(jvmci_type);
589 if (klass == NULL) {
590 JVMCI_THROW_0(NullPointerException);
591 }
592 array_klass = klass->array_klass(CHECK_NULL);
593 }
594 JVMCIObject result = JVMCIENV->get_jvmci_type(array_klass, JVMCI_CHECK_NULL);
595 return JVMCIENV->get_jobject(result);
596 C2V_END
597
598 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror))
599 requireInHotSpot("lookupClass", JVMCI_CHECK_NULL);
600 if (mirror == NULL) {
601 return NULL;
602 }
603 JVMCIKlassHandle klass(THREAD);
604 klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
605 if (klass == NULL) {
606 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported");
607 }
608 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
609 return JVMCIENV->get_jobject(result);
610 }
611
612 C2V_VMENTRY_NULL(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
613 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
614 oop obj = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL);
615 constantTag tag = cp->tag_at(index);
616 if (tag.is_dynamic_constant() || tag.is_dynamic_constant_in_error()) {
617 if (obj == Universe::the_null_sentinel()) {
618 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
619 }
620 BasicType bt = Signature::basic_type(cp->uncached_signature_ref_at(index));
621 if (!is_reference_type(bt)) {
622 if (!is_java_primitive(bt)) {
623 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
624 }
625
626 // Convert standard box (e.g. java.lang.Integer) to JVMCI box (e.g. jdk.vm.ci.meta.PrimitiveConstant)
627 jvalue value;
628 jlong raw_value;
629 JVMCIObject kind;
630 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
631 assert(bt2 == bt, "");
632 switch (bt2) {
633 case T_LONG: kind = JVMCIENV->get_JavaKind_Long(); raw_value = value.j; break;
634 case T_DOUBLE: kind = JVMCIENV->get_JavaKind_Double(); raw_value = value.j; break;
635 case T_FLOAT: kind = JVMCIENV->get_JavaKind_Float(); raw_value = value.i; break;
636 case T_INT: kind = JVMCIENV->get_JavaKind_Int(); raw_value = value.i; break;
637 case T_SHORT: kind = JVMCIENV->get_JavaKind_Short(); raw_value = value.s; break;
638 case T_BYTE: kind = JVMCIENV->get_JavaKind_Byte(); raw_value = value.b; break;
639 case T_CHAR: kind = JVMCIENV->get_JavaKind_Char(); raw_value = value.c; break;
640 case T_BOOLEAN: kind = JVMCIENV->get_JavaKind_Boolean(); raw_value = value.z; break;
641 default: return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL());
642 }
643
644 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(kind, raw_value, JVMCI_CHECK_NULL);
645 return JVMCIENV->get_jobject(result);
646 }
647 }
648 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj));
649 C2V_END
650
651 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
652 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
653 return cp->name_and_type_ref_index_at(index);
654 C2V_END
655
656 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which))
657 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
658 JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which), JVMCI_CHECK_NULL);
659 return JVMCIENV->get_jobject(sym);
660 C2V_END
661
662 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which))
663 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
664 JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which), JVMCI_CHECK_NULL);
665 return JVMCIENV->get_jobject(sym);
666 C2V_END
667
668 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
669 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
670 return cp->klass_ref_index_at(index);
671 C2V_END
672
673 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
674 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
675 Klass* klass = cp->klass_at(index, CHECK_NULL);
676 JVMCIKlassHandle resolved_klass(THREAD, klass);
677 if (resolved_klass->is_instance_klass()) {
678 InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL);
679 if (!InstanceKlass::cast(resolved_klass())->is_linked()) {
680 // link_class() should not return here if there is an issue.
681 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name()));
682 }
683 }
684 JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
685 return JVMCIENV->get_jobject(klassObject);
686 C2V_END
687
688 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
689 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
690 Klass* loading_klass = cp->pool_holder();
691 bool is_accessible = false;
692 JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass));
693 Symbol* symbol = NULL;
694 if (klass.is_null()) {
695 constantTag tag = cp->tag_at(index);
696 if (tag.is_klass()) {
697 // The klass has been inserted into the constant pool
698 // very recently.
699 klass = cp->resolved_klass_at(index);
700 } else if (tag.is_symbol()) {
701 symbol = cp->symbol_at(index);
702 } else {
703 assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag");
704 symbol = cp->klass_name_at(index);
705 }
706 }
707 JVMCIObject result;
708 if (!klass.is_null()) {
709 result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
710 } else {
711 result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL);
712 }
713 return JVMCIENV->get_jobject(result);
714 C2V_END
715
716 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
717 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
718 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
719 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop));
720 C2V_END
721
722 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
723 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
724 InstanceKlass* pool_holder = cp->pool_holder();
725 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
726 methodHandle method(THREAD, JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder));
727 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
728 return JVMCIENV->get_jobject(result);
729 C2V_END
730
731 C2V_VMENTRY_0(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
732 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
733 return cp->remap_instruction_operand_from_cache(index);
734 C2V_END
735
736 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jobject jvmci_method, jbyte opcode, jintArray info_handle))
737 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
738 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
739 fieldDescriptor fd;
740 methodHandle mh(THREAD, (jvmci_method != NULL) ? JVMCIENV->asMethod(jvmci_method) : NULL);
741 LinkInfo link_info(cp, index, mh, CHECK_NULL);
742 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_NULL);
743 JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle);
744 if (info.is_null() || JVMCIENV->get_length(info) != 3) {
745 JVMCI_ERROR_NULL("info must not be null and have a length of 3");
746 }
747 JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int());
748 JVMCIENV->put_int_at(info, 1, fd.offset());
749 JVMCIENV->put_int_at(info, 2, fd.index());
750 JVMCIKlassHandle handle(THREAD, fd.field_holder());
751 JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
752 return JVMCIENV->get_jobject(field_holder);
753 C2V_END
754
755 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method))
756 Klass* klass = JVMCIENV->asKlass(jvmci_type);
757 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
758 InstanceKlass* holder = method->method_holder();
759 if (klass->is_interface()) {
760 JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name()));
761 }
762 if (!holder->is_interface()) {
763 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()));
764 }
765 if (!klass->is_instance_klass()) {
766 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
767 }
768 if (!InstanceKlass::cast(klass)->is_linked()) {
769 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name()));
770 }
771 if (!klass->is_subtype_of(holder)) {
772 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s does not implement interface %s", klass->external_name(), holder->external_name()));
773 }
774 return LinkResolver::vtable_index_of_interface_method(klass, method);
775 C2V_END
776
777 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
778 Klass* recv_klass = JVMCIENV->asKlass(receiver_jvmci_type);
779 Klass* caller_klass = JVMCIENV->asKlass(caller_jvmci_type);
780 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
781
782 Klass* resolved = method->method_holder();
783 Symbol* h_name = method->name();
784 Symbol* h_signature = method->signature();
785
786 if (MethodHandles::is_signature_polymorphic_method(method())) {
787 // Signature polymorphic methods are already resolved, JVMCI just returns NULL in this case.
788 return NULL;
789 }
790
791 if (method->name() == vmSymbols::clone_name() &&
792 resolved == vmClasses::Object_klass() &&
793 recv_klass->is_array_klass()) {
794 // Resolution of the clone method on arrays always returns Object.clone even though that method
795 // has protected access. There's some trickery in the access checking to make this all work out
796 // so it's necessary to pass in the array class as the resolved class to properly trigger this.
797 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See
798 // LinkResolver::check_method_accessability for the matching logic.
799 resolved = recv_klass;
800 }
801
802 LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
803 Method* m = NULL;
804 // Only do exact lookup if receiver klass has been linked. Otherwise,
805 // the vtable has not been setup, and the LinkResolver will fail.
806 if (recv_klass->is_array_klass() ||
807 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
808 if (resolved->is_interface()) {
809 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
810 } else {
811 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
812 }
813 }
814
815 if (m == NULL) {
816 // Return NULL if there was a problem with lookup (uninitialized class, etc.)
817 return NULL;
818 }
819
820 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, m), JVMCI_CHECK_NULL);
821 return JVMCIENV->get_jobject(result);
822 C2V_END
823
824 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, jobject jvmci_type))
825 Klass* klass = JVMCIENV->asKlass(jvmci_type);
826 assert(klass != NULL, "method must not be called for primitive types");
827 if (!klass->is_instance_klass()) {
828 return false;
829 }
830 InstanceKlass* iklass = InstanceKlass::cast(klass);
831 return Dependencies::find_finalizable_subclass(iklass) != NULL;
832 C2V_END
833
834 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, jobject jvmci_type))
835 Klass* klass = JVMCIENV->asKlass(jvmci_type);
836 if (!klass->is_instance_klass()) {
837 return NULL;
838 }
839 InstanceKlass* iklass = InstanceKlass::cast(klass);
840 methodHandle clinit(THREAD, iklass->class_initializer());
841 JVMCIObject result = JVMCIENV->get_jvmci_method(clinit, JVMCI_CHECK_NULL);
842 return JVMCIENV->get_jobject(result);
843 C2V_END
844
845 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr))
846 address target_addr = (address) addr;
847 if (target_addr != 0x0) {
848 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
849 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
850 return MAX2(ABS(off_low), ABS(off_high));
851 }
852 return -1;
853 C2V_END
854
855 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject, jobject jvmci_method))
856 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
857 method->set_not_c1_compilable();
858 method->set_not_c2_compilable();
859 method->set_dont_inline(true);
860 C2V_END
861
862 C2V_VMENTRY_0(jint, installCode, (JNIEnv *env, jobject, jobject target, jobject compiled_code,
863 jobject installed_code, jlong failed_speculations_address, jbyteArray speculations_obj))
864 HandleMark hm(THREAD);
865 JNIHandleMark jni_hm(thread);
866
867 JVMCIObject target_handle = JVMCIENV->wrap(target);
868 JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
869 CodeBlob* cb = NULL;
870 JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code);
871 JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj);
872
873 int speculations_len = JVMCIENV->get_length(speculations_handle);
874 char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len);
875 JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len);
876
877 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR);
878
879 TraceTime install_time("installCode", JVMCICompiler::codeInstallTimer(!thread->is_Compiler_thread()));
880
881 nmethodLocker nmethod_handle;
882 CodeInstaller installer(JVMCIENV);
883 JVMCI::CodeInstallResult result = installer.install(compiler,
884 target_handle,
885 compiled_code_handle,
886 cb,
887 nmethod_handle,
888 installed_code_handle,
889 (FailedSpeculation**)(address) failed_speculations_address,
890 speculations,
891 speculations_len,
892 JVMCI_CHECK_0);
893
894 if (PrintCodeCacheOnCompilation) {
895 stringStream s;
896 // Dump code cache into a buffer before locking the tty,
897 {
898 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
899 CodeCache::print_summary(&s, false);
900 }
901 ttyLocker ttyl;
902 tty->print_raw_cr(s.as_string());
903 }
904
905 if (result != JVMCI::ok) {
906 assert(cb == NULL, "should be");
907 } else {
908 if (installed_code_handle.is_non_null()) {
909 if (cb->is_nmethod()) {
910 assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type");
911 // Clear the link to an old nmethod first
912 JVMCIObject nmethod_mirror = installed_code_handle;
913 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, JVMCI_CHECK_0);
914 } else {
915 assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type");
916 }
917 // Initialize the link to the new code blob
918 JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0);
919 }
920 }
921 return result;
922 C2V_END
923
924 C2V_VMENTRY_0(jint, getMetadata, (JNIEnv *env, jobject, jobject target, jobject compiled_code, jobject metadata))
925 JVMCI_THROW_MSG_0(InternalError, "unimplemented");
926 C2V_END
927
928 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject))
929 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK);
930 CompilerStatistics* stats = compiler->stats();
931 stats->_standard.reset();
932 stats->_osr.reset();
933 C2V_END
934
935 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode))
936 HandleMark hm(THREAD);
937
938 if (installedCode == NULL) {
939 JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null");
940 }
941
942 JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode);
943 nmethodLocker locker;
944 CodeBlob* cb = JVMCIENV->get_code_blob(installedCodeObject, locker);
945 if (cb == NULL) {
946 return NULL;
947 }
948
949 // We don't want the stringStream buffer to resize during disassembly as it
950 // uses scoped resource memory. If a nested function called during disassembly uses
951 // a ResourceMark and the buffer expands within the scope of the mark,
952 // the buffer becomes garbage when that scope is exited. Experience shows that
953 // the disassembled code is typically about 10x the code size so a fixed buffer
954 // sized to 20x code size plus a fixed amount for header info should be sufficient.
955 int bufferSize = cb->code_size() * 20 + 1024;
956 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
957 stringStream st(buffer, bufferSize);
958 if (cb->is_nmethod()) {
959 nmethod* nm = (nmethod*) cb;
960 if (!nm->is_alive()) {
961 return NULL;
962 }
963 }
964 Disassembler::decode(cb, &st);
965 if (st.size() <= 0) {
966 return NULL;
967 }
968
969 JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL);
970 return JVMCIENV->get_jobject(result);
971 C2V_END
972
973 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, jobject jvmci_method, int bci))
974 HandleMark hm(THREAD);
975
976 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
977 JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL);
978 return JVMCIENV->get_jobject(element);
979 C2V_END
980
981 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod))
982 // The incoming arguments array would have to contain JavaConstants instead of regular objects
983 // and the return value would have to be wrapped as a JavaConstant.
984 requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL);
985
986 HandleMark hm(THREAD);
987
988 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
989 nmethodLocker locker;
990 nmethod* nm = JVMCIENV->get_nmethod(nmethod_mirror, locker);
991 if (nm == NULL || !nm->is_in_use()) {
992 JVMCI_THROW_NULL(InvalidInstalledCodeException);
993 }
994 methodHandle mh(THREAD, nm->method());
995 Symbol* signature = mh->signature();
996 JavaCallArguments jca(mh->size_of_parameters());
997
998 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
999 JavaValue result(jap.return_type());
1000 jca.set_alternative_target(Handle(THREAD, JNIHandles::resolve(nmethod_mirror.as_jobject())));
1001 JavaCalls::call(&result, mh, &jca, CHECK_NULL);
1002
1003 if (jap.return_type() == T_VOID) {
1004 return NULL;
1005 } else if (is_reference_type(jap.return_type())) {
1006 return JNIHandles::make_local(THREAD, result.get_oop());
1007 } else {
1008 jvalue *value = (jvalue *) result.get_value_addr();
1009 // Narrow the value down if required (Important on big endian machines)
1010 switch (jap.return_type()) {
1011 case T_BOOLEAN:
1012 value->z = (jboolean) value->i;
1013 break;
1014 case T_BYTE:
1015 value->b = (jbyte) value->i;
1016 break;
1017 case T_CHAR:
1018 value->c = (jchar) value->i;
1019 break;
1020 case T_SHORT:
1021 value->s = (jshort) value->i;
1022 break;
1023 default:
1024 break;
1025 }
1026 JVMCIObject o = JVMCIENV->create_box(jap.return_type(), value, JVMCI_CHECK_NULL);
1027 return JVMCIENV->get_jobject(o);
1028 }
1029 C2V_END
1030
1031 C2V_VMENTRY_NULL(jlongArray, getLineNumberTable, (JNIEnv* env, jobject, jobject jvmci_method))
1032 Method* method = JVMCIENV->asMethod(jvmci_method);
1033 if (!method->has_linenumber_table()) {
1034 return NULL;
1035 }
1036 u2 num_entries = 0;
1037 CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
1038 while (streamForSize.read_pair()) {
1039 num_entries++;
1040 }
1041
1042 CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
1043 JVMCIPrimitiveArray result = JVMCIENV->new_longArray(2 * num_entries, JVMCI_CHECK_NULL);
1044
1045 int i = 0;
1046 jlong value;
1047 while (stream.read_pair()) {
1048 value = ((long) stream.bci());
1049 JVMCIENV->put_long_at(result, i, value);
1050 value = ((long) stream.line());
1051 JVMCIENV->put_long_at(result, i + 1, value);
1052 i += 2;
1053 }
1054
1055 return (jlongArray) JVMCIENV->get_jobject(result);
1056 C2V_END
1057
1058 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, jobject jvmci_method))
1059 Method* method = JVMCIENV->asMethod(jvmci_method);
1060 if (!method->has_localvariable_table()) {
1061 return 0;
1062 }
1063 return (jlong) (address) method->localvariable_table_start();
1064 C2V_END
1065
1066 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, jobject jvmci_method))
1067 Method* method = JVMCIENV->asMethod(jvmci_method);
1068 return method->localvariable_table_length();
1069 C2V_END
1070
1071 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, jobject jvmci_method))
1072 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
1073 MethodCounters* mcs = method->method_counters();
1074 if (mcs != NULL) {
1075 mcs->clear_counters();
1076 }
1077 NOT_PRODUCT(method->set_compiled_invocation_count(0));
1078
1079 CompiledMethod* code = method->code();
1080 if (code != NULL) {
1081 code->make_not_entrant();
1082 }
1083
1084 MethodData* method_data = method->method_data();
1085 if (method_data == NULL) {
1086 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
1087 method_data = MethodData::allocate(loader_data, method, CHECK);
1088 method->set_method_data(method_data);
1089 } else {
1090 method_data->initialize();
1091 }
1092 C2V_END
1093
1094
1095 C2V_VMENTRY(void, invalidateHotSpotNmethod, (JNIEnv* env, jobject, jobject hs_nmethod))
1096 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1097 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, JVMCI_CHECK);
1098 C2V_END
1099
1100 C2V_VMENTRY_NULL(jlongArray, collectCounters, (JNIEnv* env, jobject))
1101 // Returns a zero length array if counters aren't enabled
1102 JVMCIPrimitiveArray array = JVMCIENV->new_longArray(JVMCICounterSize, JVMCI_CHECK_NULL);
1103 if (JVMCICounterSize > 0) {
1104 jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize);
1105 JavaThread::collect_counters(temp_array, JVMCICounterSize);
1106 JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize);
1107 }
1108 return (jlongArray) JVMCIENV->get_jobject(array);
1109 C2V_END
1110
1111 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject))
1112 return (jint) JVMCICounterSize;
1113 C2V_END
1114
1115 C2V_VMENTRY_0(jboolean, setCountersSize, (JNIEnv* env, jobject, jint new_size))
1116 return JavaThread::resize_all_jvmci_counters(new_size);
1117 C2V_END
1118
1119 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci))
1120 HandleMark hm(THREAD);
1121 if (jvmci_method == NULL) {
1122 JVMCI_THROW_0(NullPointerException);
1123 }
1124 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
1125 if (entry_bci >= method->code_size() || entry_bci < -1) {
1126 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci));
1127 }
1128 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
1129 C2V_END
1130
1131
1132 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong metaspace_method_data))
1133 MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data);
1134 return mdo != NULL && mdo->is_mature();
1135 C2V_END
1136
1137 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci, int comp_level))
1138 Method* method = JVMCIENV->asMethod(jvmci_method);
1139 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL;
1140 C2V_END
1141
1142 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol))
1143 JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL);
1144 return JVMCIENV->get_jobject(sym);
1145 C2V_END
1146
1147 /*
1148 * Used by matches() to convert a ResolvedJavaMethod[] to an array of Method*.
1149 */
1150 GrowableArray<Method*>* init_resolved_methods(jobjectArray methods, JVMCIEnv* JVMCIENV) {
1151 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1152 GrowableArray<Method*>* resolved_methods = new GrowableArray<Method*>(methods_oop->length());
1153 for (int i = 0; i < methods_oop->length(); i++) {
1154 oop resolved = methods_oop->obj_at(i);
1155 Method* resolved_method = NULL;
1156 if (resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) {
1157 resolved_method = HotSpotJVMCI::asMethod(JVMCIENV, resolved);
1158 }
1159 resolved_methods->append(resolved_method);
1160 }
1161 return resolved_methods;
1162 }
1163
1164 /*
1165 * Used by c2v_iterateFrames to check if `method` matches one of the ResolvedJavaMethods in the `methods` array.
1166 * The ResolvedJavaMethod[] array is converted to a Method* array that is then cached in the resolved_methods_ref in/out parameter.
1167 * In case of a match, the matching ResolvedJavaMethod is returned in matched_jvmci_method_ref.
1168 */
1169 bool matches(jobjectArray methods, Method* method, GrowableArray<Method*>** resolved_methods_ref, Handle* matched_jvmci_method_ref, Thread* THREAD, JVMCIEnv* JVMCIENV) {
1170 GrowableArray<Method*>* resolved_methods = *resolved_methods_ref;
1171 if (resolved_methods == NULL) {
1172 resolved_methods = init_resolved_methods(methods, JVMCIENV);
1173 *resolved_methods_ref = resolved_methods;
1174 }
1175 assert(method != NULL, "method should not be NULL");
1176 assert(resolved_methods->length() == ((objArrayOop) JNIHandles::resolve(methods))->length(), "arrays must have the same length");
1177 for (int i = 0; i < resolved_methods->length(); i++) {
1178 Method* m = resolved_methods->at(i);
1179 if (m == method) {
1180 *matched_jvmci_method_ref = Handle(THREAD, ((objArrayOop) JNIHandles::resolve(methods))->obj_at(i));
1181 return true;
1182 }
1183 }
1184 return false;
1185 }
1186
1187 /*
1188 * Resolves an interface call to a concrete method handle.
1189 */
1190 methodHandle resolve_interface_call(Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
1191 CallInfo callinfo;
1192 Handle receiver = args->receiver();
1193 Klass* recvrKlass = receiver.is_null() ? (Klass*)NULL : receiver->klass();
1194 LinkInfo link_info(spec_klass, name, signature);
1195 LinkResolver::resolve_interface_call(
1196 callinfo, receiver, recvrKlass, link_info, true, CHECK_(methodHandle()));
1197 methodHandle method(THREAD, callinfo.selected_method());
1198 assert(method.not_null(), "should have thrown exception");
1199 return method;
1200 }
1201
1202 /*
1203 * Used by c2v_iterateFrames to make a new vframeStream at the given compiled frame id (stack pointer) and vframe id.
1204 */
1205 void resync_vframestream_to_compiled_frame(vframeStream& vfst, intptr_t* stack_pointer, int vframe_id, JavaThread* thread, TRAPS) {
1206 vfst = vframeStream(thread);
1207 while (vfst.frame_id() != stack_pointer && !vfst.at_end()) {
1208 vfst.next();
1209 }
1210 if (vfst.frame_id() != stack_pointer) {
1211 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1212 }
1213 if (vfst.is_interpreted_frame()) {
1214 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1215 }
1216 while (vfst.vframe_id() != vframe_id) {
1217 if (vfst.at_end()) {
1218 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt")
1219 }
1220 vfst.next();
1221 assert(!vfst.is_interpreted_frame(), "Wrong frame type");
1222 }
1223 }
1224
1225 /*
1226 * Used by c2v_iterateFrames. Returns an array of any unallocated scope objects or NULL if none.
1227 */
1228 GrowableArray<ScopeValue*>* get_unallocated_objects_or_null(GrowableArray<ScopeValue*>* scope_objects) {
1229 GrowableArray<ScopeValue*>* unallocated = NULL;
1230 for (int i = 0; i < scope_objects->length(); i++) {
1231 ObjectValue* sv = (ObjectValue*) scope_objects->at(i);
1232 if (sv->value().is_null()) {
1233 if (unallocated == NULL) {
1234 unallocated = new GrowableArray<ScopeValue*>(scope_objects->length());
1235 }
1236 unallocated->append(sv);
1237 }
1238 }
1239 return unallocated;
1240 }
1241
1242 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
1243
1244 if (!thread->has_last_Java_frame()) {
1245 return NULL;
1246 }
1247 Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
1248
1249 requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL);
1250
1251 HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1252
1253 vframeStream vfst(thread);
1254 jobjectArray methods = initial_methods;
1255 methodHandle visitor_method;
1256 GrowableArray<Method*>* resolved_methods = NULL;
1257
1258 while (!vfst.at_end()) { // frame loop
1259 bool realloc_called = false;
1260 intptr_t* frame_id = vfst.frame_id();
1261
1262 // Previous compiledVFrame of this frame; use with at_scope() to reuse scope object pool.
1263 compiledVFrame* prev_cvf = NULL;
1264
1265 for (; !vfst.at_end() && vfst.frame_id() == frame_id; vfst.next()) { // vframe loop
1266 int frame_number = 0;
1267 Method *method = vfst.method();
1268 int bci = vfst.bci();
1269
1270 Handle matched_jvmci_method;
1271 if (methods == NULL || matches(methods, method, &resolved_methods, &matched_jvmci_method, THREAD, JVMCIENV)) {
1272 if (initialSkip > 0) {
1273 initialSkip--;
1274 continue;
1275 }
1276 javaVFrame* vf;
1277 if (prev_cvf != NULL && prev_cvf->frame_pointer()->id() == frame_id) {
1278 assert(prev_cvf->is_compiled_frame(), "expected compiled Java frame");
1279 vf = prev_cvf->at_scope(vfst.decode_offset(), vfst.vframe_id());
1280 } else {
1281 vf = vfst.asJavaVFrame();
1282 }
1283
1284 StackValueCollection* locals = NULL;
1285 typeArrayHandle localIsVirtual_h;
1286 if (vf->is_compiled_frame()) {
1287 // compiled method frame
1288 compiledVFrame* cvf = compiledVFrame::cast(vf);
1289
1290 ScopeDesc* scope = cvf->scope();
1291 // native wrappers do not have a scope
1292 if (scope != NULL && scope->objects() != NULL) {
1293 prev_cvf = cvf;
1294
1295 GrowableArray<ScopeValue*>* objects = NULL;
1296 if (!realloc_called) {
1297 objects = scope->objects();
1298 } else {
1299 // some object might already have been re-allocated, only reallocate the non-allocated ones
1300 objects = get_unallocated_objects_or_null(scope->objects());
1301 }
1302
1303 if (objects != NULL) {
1304 RegisterMap reg_map(vf->register_map());
1305 bool realloc_failures = Deoptimization::realloc_objects(thread, vf->frame_pointer(), ®_map, objects, CHECK_NULL);
1306 Deoptimization::reassign_fields(vf->frame_pointer(), ®_map, objects, realloc_failures, false, CHECK_NULL);
1307 realloc_called = true;
1308 }
1309
1310 GrowableArray<ScopeValue*>* local_values = scope->locals();
1311 for (int i = 0; i < local_values->length(); i++) {
1312 ScopeValue* value = local_values->at(i);
1313 if (value->is_object()) {
1314 if (localIsVirtual_h.is_null()) {
1315 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1316 localIsVirtual_h = typeArrayHandle(THREAD, array_oop);
1317 }
1318 localIsVirtual_h->bool_at_put(i, true);
1319 }
1320 }
1321 }
1322
1323 locals = cvf->locals();
1324 frame_number = cvf->vframe_id();
1325 } else {
1326 // interpreted method frame
1327 interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1328
1329 locals = ivf->locals();
1330 }
1331 assert(bci == vf->bci(), "wrong bci");
1332 assert(method == vf->method(), "wrong method");
1333
1334 Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1335 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), bci);
1336 if (matched_jvmci_method.is_null()) {
1337 methodHandle mh(THREAD, method);
1338 JVMCIObject jvmci_method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1339 matched_jvmci_method = Handle(THREAD, JNIHandles::resolve(jvmci_method.as_jobject()));
1340 }
1341 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), matched_jvmci_method());
1342 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), localIsVirtual_h());
1343
1344 HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM));
1345 HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) frame_id);
1346 HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number);
1347
1348 // initialize the locals array
1349 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1350 objArrayHandle array(THREAD, array_oop);
1351 for (int i = 0; i < locals->size(); i++) {
1352 StackValue* var = locals->at(i);
1353 if (var->type() == T_OBJECT) {
1354 array->obj_at_put(i, locals->at(i)->get_obj()());
1355 }
1356 }
1357 HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array());
1358 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE);
1359
1360 JavaValue result(T_OBJECT);
1361 JavaCallArguments args(visitor);
1362 if (visitor_method.is_null()) {
1363 visitor_method = resolve_interface_call(HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL);
1364 }
1365
1366 args.push_oop(frame_reference);
1367 JavaCalls::call(&result, visitor_method, &args, CHECK_NULL);
1368 if (result.get_oop() != NULL) {
1369 return JNIHandles::make_local(thread, result.get_oop());
1370 }
1371 if (methods == initial_methods) {
1372 methods = match_methods;
1373 if (resolved_methods != NULL && JNIHandles::resolve(match_methods) != JNIHandles::resolve(initial_methods)) {
1374 resolved_methods = NULL;
1375 }
1376 }
1377 assert(initialSkip == 0, "There should be no match before initialSkip == 0");
1378 if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) {
1379 // the frame has been deoptimized, we need to re-synchronize the frame and vframe
1380 prev_cvf = NULL;
1381 intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference());
1382 resync_vframestream_to_compiled_frame(vfst, stack_pointer, frame_number, thread, CHECK_NULL);
1383 }
1384 }
1385 } // end of vframe loop
1386 } // end of frame loop
1387
1388 // the end was reached without finding a matching method
1389 return NULL;
1390 C2V_END
1391
1392 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1393 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
1394 CallInfo callInfo;
1395 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK);
1396 ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index);
1397 cp_cache_entry->set_dynamic_call(cp, callInfo);
1398 C2V_END
1399
1400 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1401 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
1402 Klass* holder = cp->klass_ref_at(index, CHECK);
1403 Symbol* name = cp->name_ref_at(index);
1404 if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1405 CallInfo callInfo;
1406 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1407 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1408 cp_cache_entry->set_method_handle(cp, callInfo);
1409 }
1410 C2V_END
1411
1412 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1413 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
1414 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1415 if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) {
1416 // MethodHandle.invoke* --> LambdaForm?
1417 ResourceMark rm;
1418
1419 LinkInfo link_info(cp, index, CATCH);
1420
1421 Klass* resolved_klass = link_info.resolved_klass();
1422
1423 Symbol* name_sym = cp->name_ref_at(index);
1424
1425 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1426 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1427
1428 methodHandle adapter_method(THREAD, cp_cache_entry->f1_as_method());
1429
1430 methodHandle resolved_method(adapter_method);
1431
1432 // Can we treat it as a regular invokevirtual?
1433 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1434 vmassert(!resolved_method->is_static(),"!");
1435 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1436 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1437 vmassert(cp_cache_entry->appendix_if_resolved(cp) == NULL, "!");
1438
1439 methodHandle m(THREAD, LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1440 vmassert(m == resolved_method, "!!");
1441 return -1;
1442 }
1443
1444 return Bytecodes::_invokevirtual;
1445 }
1446 if (cp_cache_entry->is_resolved(Bytecodes::_invokedynamic)) {
1447 return Bytecodes::_invokedynamic;
1448 }
1449 return -1;
1450 C2V_END
1451
1452
1453 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject))
1454 JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL);
1455 JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL);
1456 JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL);
1457 JVMCIENV->put_object_at(holders, 0, mh);
1458 JVMCIENV->put_object_at(holders, 1, vh);
1459 return JVMCIENV->get_jobject(holders);
1460 C2V_END
1461
1462 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject))
1463 //see compute_recording_non_safepoints in debugInfroRec.cpp
1464 if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1465 return true;
1466 }
1467 return DebugNonSafepoints;
1468 C2V_END
1469
1470 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1471 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate))
1472 JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame);
1473 if (hs_frame.is_null()) {
1474 JVMCI_THROW_MSG(NullPointerException, "stack frame is null");
1475 }
1476
1477 requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK);
1478
1479 JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK);
1480
1481 // look for the given stack frame
1482 StackFrameStream fst(thread, false /* update */, true /* process_frames */);
1483 intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame);
1484 while (fst.current()->id() != stack_pointer && !fst.is_done()) {
1485 fst.next();
1486 }
1487 if (fst.current()->id() != stack_pointer) {
1488 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found");
1489 }
1490
1491 if (invalidate) {
1492 if (!fst.current()->is_compiled_frame()) {
1493 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1494 }
1495 assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
1496 ((nmethod*) fst.current()->cb())->make_not_entrant();
1497 }
1498 Deoptimization::deoptimize(thread, *fst.current(), Deoptimization::Reason_none);
1499 // look for the frame again as it has been updated by deopt (pc, deopt state...)
1500 StackFrameStream fstAfterDeopt(thread, true /* update */, true /* process_frames */);
1501 while (fstAfterDeopt.current()->id() != stack_pointer && !fstAfterDeopt.is_done()) {
1502 fstAfterDeopt.next();
1503 }
1504 if (fstAfterDeopt.current()->id() != stack_pointer) {
1505 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found after deopt");
1506 }
1507
1508 vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1509 if (!vf->is_compiled_frame()) {
1510 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1511 }
1512
1513 GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1514 while (true) {
1515 assert(vf->is_compiled_frame(), "Wrong frame type");
1516 virtualFrames->push(compiledVFrame::cast(vf));
1517 if (vf->is_top()) {
1518 break;
1519 }
1520 vf = vf->sender();
1521 }
1522
1523 int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame);
1524 if (last_frame_number >= virtualFrames->length()) {
1525 JVMCI_THROW_MSG(IllegalStateException, "invalid frame number");
1526 }
1527
1528 // Reallocate the non-escaping objects and restore their fields.
1529 assert (virtualFrames->at(last_frame_number)->scope() != NULL,"invalid scope");
1530 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1531
1532 if (objects == NULL) {
1533 // no objects to materialize
1534 return;
1535 }
1536
1537 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK);
1538 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false, THREAD);
1539
1540 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1541 compiledVFrame* cvf = virtualFrames->at(frame_index);
1542
1543 GrowableArray<ScopeValue*>* scopeLocals = cvf->scope()->locals();
1544 StackValueCollection* locals = cvf->locals();
1545 if (locals != NULL) {
1546 for (int i2 = 0; i2 < locals->size(); i2++) {
1547 StackValue* var = locals->at(i2);
1548 if (var->type() == T_OBJECT && scopeLocals->at(i2)->is_object()) {
1549 jvalue val;
1550 val.l = cast_from_oop<jobject>(locals->at(i2)->get_obj()());
1551 cvf->update_local(T_OBJECT, i2, val);
1552 }
1553 }
1554 }
1555
1556 GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1557 StackValueCollection* expressions = cvf->expressions();
1558 if (expressions != NULL) {
1559 for (int i2 = 0; i2 < expressions->size(); i2++) {
1560 StackValue* var = expressions->at(i2);
1561 if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) {
1562 jvalue val;
1563 val.l = cast_from_oop<jobject>(expressions->at(i2)->get_obj()());
1564 cvf->update_stack(T_OBJECT, i2, val);
1565 }
1566 }
1567 }
1568
1569 GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors();
1570 GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
1571 if (monitors != NULL) {
1572 for (int i2 = 0; i2 < monitors->length(); i2++) {
1573 cvf->update_monitor(i2, monitors->at(i2));
1574 }
1575 }
1576 }
1577
1578 // all locals are materialized by now
1579 JVMCIENV->set_HotSpotStackFrameReference_localIsVirtual(hs_frame, NULL);
1580 // update the locals array
1581 JVMCIObjectArray array = JVMCIENV->get_HotSpotStackFrameReference_locals(hs_frame);
1582 StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1583 for (int i = 0; i < locals->size(); i++) {
1584 StackValue* var = locals->at(i);
1585 if (var->type() == T_OBJECT) {
1586 JVMCIENV->put_object_at(array, i, HotSpotJVMCI::wrap(locals->at(i)->get_obj()()));
1587 }
1588 }
1589 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, hs_frame, JNI_TRUE);
1590 C2V_END
1591
1592 // Use of tty does not require the current thread to be attached to the VM
1593 // so no need for a full C2V_VMENTRY transition.
1594 C2V_VMENTRY_PREFIX(void, writeDebugOutput, (JNIEnv* env, jobject, jlong buffer, jint length, bool flush))
1595 if (length <= 8) {
1596 tty->write((char*) &buffer, length);
1597 } else {
1598 tty->write((char*) buffer, length);
1599 }
1600 if (flush) {
1601 tty->flush();
1602 }
1603 C2V_END
1604
1605 // Use of tty does not require the current thread to be attached to the VM
1606 // so no need for a full C2V_VMENTRY transition.
1607 C2V_VMENTRY_PREFIX(void, flushDebugOutput, (JNIEnv* env, jobject))
1608 tty->flush();
1609 C2V_END
1610
1611 C2V_VMENTRY_0(jint, methodDataProfileDataSize, (JNIEnv* env, jobject, jlong metaspace_method_data, jint position))
1612 MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data);
1613 ProfileData* profile_data = mdo->data_at(position);
1614 if (mdo->is_valid(profile_data)) {
1615 return profile_data->size_in_bytes();
1616 }
1617 DataLayout* data = mdo->extra_data_base();
1618 DataLayout* end = mdo->extra_data_limit();
1619 for (;; data = mdo->next_extra(data)) {
1620 assert(data < end, "moved past end of extra data");
1621 profile_data = data->data_in();
1622 if (mdo->dp_to_di(profile_data->dp()) == position) {
1623 return profile_data->size_in_bytes();
1624 }
1625 }
1626 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Invalid profile data position %d", position));
1627 C2V_END
1628
1629 C2V_VMENTRY_0(jlong, getFingerprint, (JNIEnv* env, jobject, jlong metaspace_klass))
1630 JVMCI_THROW_MSG_0(InternalError, "unimplemented");
1631 C2V_END
1632
1633 C2V_VMENTRY_NULL(jobject, getInterfaces, (JNIEnv* env, jobject, jobject jvmci_type))
1634 if (jvmci_type == NULL) {
1635 JVMCI_THROW_0(NullPointerException);
1636 }
1637
1638 Klass* klass = JVMCIENV->asKlass(jvmci_type);
1639 if (klass == NULL) {
1640 JVMCI_THROW_0(NullPointerException);
1641 }
1642 if (!klass->is_instance_klass()) {
1643 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
1644 }
1645 InstanceKlass* iklass = InstanceKlass::cast(klass);
1646
1647 // Regular instance klass, fill in all local interfaces
1648 int size = iklass->local_interfaces()->length();
1649 JVMCIObjectArray interfaces = JVMCIENV->new_HotSpotResolvedObjectTypeImpl_array(size, JVMCI_CHECK_NULL);
1650 for (int index = 0; index < size; index++) {
1651 JVMCIKlassHandle klass(THREAD);
1652 Klass* k = iklass->local_interfaces()->at(index);
1653 klass = k;
1654 JVMCIObject type = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
1655 JVMCIENV->put_object_at(interfaces, index, type);
1656 }
1657 return JVMCIENV->get_jobject(interfaces);
1658 C2V_END
1659
1660 C2V_VMENTRY_NULL(jobject, getComponentType, (JNIEnv* env, jobject, jobject jvmci_type))
1661 if (jvmci_type == NULL) {
1662 JVMCI_THROW_0(NullPointerException);
1663 }
1664
1665 Klass* klass = JVMCIENV->asKlass(jvmci_type);
1666 oop mirror = klass->java_mirror();
1667 if (java_lang_Class::is_primitive(mirror) ||
1668 !java_lang_Class::as_Klass(mirror)->is_array_klass()) {
1669 return NULL;
1670 }
1671
1672 oop component_mirror = java_lang_Class::component_mirror(mirror);
1673 if (component_mirror == NULL) {
1674 return NULL;
1675 }
1676 Klass* component_klass = java_lang_Class::as_Klass(component_mirror);
1677 if (component_klass != NULL) {
1678 JVMCIKlassHandle klass_handle(THREAD);
1679 klass_handle = component_klass;
1680 JVMCIObject result = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
1681 return JVMCIENV->get_jobject(result);
1682 }
1683 BasicType type = java_lang_Class::primitive_type(component_mirror);
1684 JVMCIObject result = JVMCIENV->get_jvmci_primitive_type(type);
1685 return JVMCIENV->get_jobject(result);
1686 C2V_END
1687
1688 C2V_VMENTRY(void, ensureInitialized, (JNIEnv* env, jobject, jobject jvmci_type))
1689 if (jvmci_type == NULL) {
1690 JVMCI_THROW(NullPointerException);
1691 }
1692
1693 Klass* klass = JVMCIENV->asKlass(jvmci_type);
1694 if (klass != NULL && klass->should_be_initialized()) {
1695 InstanceKlass* k = InstanceKlass::cast(klass);
1696 k->initialize(CHECK);
1697 }
1698 C2V_END
1699
1700 C2V_VMENTRY(void, ensureLinked, (JNIEnv* env, jobject, jobject jvmci_type))
1701 if (jvmci_type == NULL) {
1702 JVMCI_THROW(NullPointerException);
1703 }
1704
1705 Klass* klass = JVMCIENV->asKlass(jvmci_type);
1706 if (klass != NULL && klass->is_instance_klass()) {
1707 InstanceKlass* k = InstanceKlass::cast(klass);
1708 k->link_class(CHECK);
1709 }
1710 C2V_END
1711
1712 C2V_VMENTRY_0(jint, interpreterFrameSize, (JNIEnv* env, jobject, jobject bytecode_frame_handle))
1713 if (bytecode_frame_handle == NULL) {
1714 JVMCI_THROW_0(NullPointerException);
1715 }
1716
1717 JVMCIObject top_bytecode_frame = JVMCIENV->wrap(bytecode_frame_handle);
1718 JVMCIObject bytecode_frame = top_bytecode_frame;
1719 int size = 0;
1720 int callee_parameters = 0;
1721 int callee_locals = 0;
1722 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1723 int extra_args = method->max_stack() - JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1724
1725 while (bytecode_frame.is_non_null()) {
1726 int locks = JVMCIENV->get_BytecodeFrame_numLocks(bytecode_frame);
1727 int temps = JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1728 bool is_top_frame = (JVMCIENV->equals(bytecode_frame, top_bytecode_frame));
1729 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1730
1731 int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
1732 temps + callee_parameters,
1733 extra_args,
1734 locks,
1735 callee_parameters,
1736 callee_locals,
1737 is_top_frame);
1738 size += frame_size;
1739
1740 callee_parameters = method->size_of_parameters();
1741 callee_locals = method->max_locals();
1742 extra_args = 0;
1743 bytecode_frame = JVMCIENV->get_BytecodePosition_caller(bytecode_frame);
1744 }
1745 return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
1746 C2V_END
1747
1748 C2V_VMENTRY(void, compileToBytecode, (JNIEnv* env, jobject, jobject lambda_form_handle))
1749 Handle lambda_form = JVMCIENV->asConstant(JVMCIENV->wrap(lambda_form_handle), JVMCI_CHECK);
1750 if (lambda_form->is_a(vmClasses::LambdaForm_klass())) {
1751 TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode");
1752 JavaValue result(T_VOID);
1753 JavaCalls::call_special(&result, lambda_form, vmClasses::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK);
1754 } else {
1755 JVMCI_THROW_MSG(IllegalArgumentException,
1756 err_msg("Unexpected type: %s", lambda_form->klass()->external_name()))
1757 }
1758 C2V_END
1759
1760 C2V_VMENTRY_0(jint, getIdentityHashCode, (JNIEnv* env, jobject, jobject object))
1761 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1762 return obj->identity_hash();
1763 C2V_END
1764
1765 C2V_VMENTRY_0(jboolean, isInternedString, (JNIEnv* env, jobject, jobject object))
1766 Handle str = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1767 if (!java_lang_String::is_instance(str())) {
1768 return false;
1769 }
1770 int len;
1771 jchar* name = java_lang_String::as_unicode_string(str(), len, CHECK_false);
1772 return (StringTable::lookup(name, len) != NULL);
1773 C2V_END
1774
1775
1776 C2V_VMENTRY_NULL(jobject, unboxPrimitive, (JNIEnv* env, jobject, jobject object))
1777 if (object == NULL) {
1778 JVMCI_THROW_0(NullPointerException);
1779 }
1780 Handle box = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
1781 BasicType type = java_lang_boxing_object::basic_type(box());
1782 jvalue result;
1783 if (java_lang_boxing_object::get_value(box(), &result) == T_ILLEGAL) {
1784 return NULL;
1785 }
1786 JVMCIObject boxResult = JVMCIENV->create_box(type, &result, JVMCI_CHECK_NULL);
1787 return JVMCIENV->get_jobject(boxResult);
1788 C2V_END
1789
1790 C2V_VMENTRY_NULL(jobject, boxPrimitive, (JNIEnv* env, jobject, jobject object))
1791 if (object == NULL) {
1792 JVMCI_THROW_0(NullPointerException);
1793 }
1794 JVMCIObject box = JVMCIENV->wrap(object);
1795 BasicType type = JVMCIENV->get_box_type(box);
1796 if (type == T_ILLEGAL) {
1797 return NULL;
1798 }
1799 jvalue value = JVMCIENV->get_boxed_value(type, box);
1800 JavaValue box_result(T_OBJECT);
1801 JavaCallArguments jargs;
1802 Klass* box_klass = NULL;
1803 Symbol* box_signature = NULL;
1804 #define BOX_CASE(bt, v, argtype, name) \
1805 case bt: \
1806 jargs.push_##argtype(value.v); \
1807 box_klass = vmClasses::name##_klass(); \
1808 box_signature = vmSymbols::name##_valueOf_signature(); \
1809 break
1810
1811 switch (type) {
1812 BOX_CASE(T_BOOLEAN, z, int, Boolean);
1813 BOX_CASE(T_BYTE, b, int, Byte);
1814 BOX_CASE(T_CHAR, c, int, Character);
1815 BOX_CASE(T_SHORT, s, int, Short);
1816 BOX_CASE(T_INT, i, int, Integer);
1817 BOX_CASE(T_LONG, j, long, Long);
1818 BOX_CASE(T_FLOAT, f, float, Float);
1819 BOX_CASE(T_DOUBLE, d, double, Double);
1820 default:
1821 ShouldNotReachHere();
1822 }
1823 #undef BOX_CASE
1824
1825 JavaCalls::call_static(&box_result,
1826 box_klass,
1827 vmSymbols::valueOf_name(),
1828 box_signature, &jargs, CHECK_NULL);
1829 oop hotspot_box = box_result.get_oop();
1830 JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false);
1831 return JVMCIENV->get_jobject(result);
1832 C2V_END
1833
1834 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, jobject holder))
1835 if (holder == NULL) {
1836 JVMCI_THROW_0(NullPointerException);
1837 }
1838 Klass* klass = JVMCIENV->asKlass(holder);
1839 if (!klass->is_instance_klass()) {
1840 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1841 return JVMCIENV->get_jobjectArray(methods);
1842 }
1843
1844 InstanceKlass* iklass = InstanceKlass::cast(klass);
1845 // Ensure class is linked
1846 iklass->link_class(CHECK_NULL);
1847
1848 GrowableArray<Method*> constructors_array;
1849 for (int i = 0; i < iklass->methods()->length(); i++) {
1850 Method* m = iklass->methods()->at(i);
1851 if (m->is_object_constructor()) {
1852 constructors_array.append(m);
1853 }
1854 }
1855 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
1856 for (int i = 0; i < constructors_array.length(); i++) {
1857 methodHandle ctor(THREAD, constructors_array.at(i));
1858 JVMCIObject method = JVMCIENV->get_jvmci_method(ctor, JVMCI_CHECK_NULL);
1859 JVMCIENV->put_object_at(methods, i, method);
1860 }
1861 return JVMCIENV->get_jobjectArray(methods);
1862 C2V_END
1863
1864 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, jobject holder))
1865 if (holder == NULL) {
1866 JVMCI_THROW_0(NullPointerException);
1867 }
1868 Klass* klass = JVMCIENV->asKlass(holder);
1869 if (!klass->is_instance_klass()) {
1870 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1871 return JVMCIENV->get_jobjectArray(methods);
1872 }
1873
1874 InstanceKlass* iklass = InstanceKlass::cast(klass);
1875 // Ensure class is linked
1876 iklass->link_class(CHECK_NULL);
1877
1878 GrowableArray<Method*> methods_array;
1879 for (int i = 0; i < iklass->methods()->length(); i++) {
1880 Method* m = iklass->methods()->at(i);
1881 if (!(m->is_object_constructor() || m->is_class_initializer()) && !m->is_overpass()) {
1882 methods_array.append(m);
1883 }
1884 }
1885 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
1886 for (int i = 0; i < methods_array.length(); i++) {
1887 methodHandle mh(THREAD, methods_array.at(i));
1888 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1889 JVMCIENV->put_object_at(methods, i, method);
1890 }
1891 return JVMCIENV->get_jobjectArray(methods);
1892 C2V_END
1893
1894 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, jobject expected_type, long displacement, jboolean is_volatile, jobject kind_object))
1895 if (object == NULL || kind_object == NULL) {
1896 JVMCI_THROW_0(NullPointerException);
1897 }
1898
1899 JVMCIObject kind = JVMCIENV->wrap(kind_object);
1900 BasicType basic_type = JVMCIENV->kindToBasicType(kind, JVMCI_CHECK_NULL);
1901
1902 InstanceKlass* holder = NULL;
1903 if (expected_type != NULL) {
1904 holder = InstanceKlass::cast(JVMCIENV->asKlass(JVMCIENV->wrap(expected_type)));
1905 }
1906
1907 bool is_static = false;
1908 Handle obj;
1909 JVMCIObject base = JVMCIENV->wrap(object);
1910 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base)) {
1911 obj = JVMCIENV->asConstant(base, JVMCI_CHECK_NULL);
1912 // asConstant will throw an NPE if a constant contains NULL
1913
1914 if (holder != NULL && !obj->is_a(holder)) {
1915 // Not a subtype of field holder
1916 return NULL;
1917 }
1918 is_static = false;
1919 if (holder == NULL && java_lang_Class::is_instance(obj()) && displacement >= InstanceMirrorKlass::offset_of_static_fields()) {
1920 is_static = true;
1921 }
1922 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base)) {
1923 is_static = true;
1924 Klass* klass = JVMCIENV->asKlass(base);
1925 if (holder != NULL && holder != klass) {
1926 return NULL;
1927 }
1928 obj = Handle(THREAD, klass->java_mirror());
1929 } else {
1930 // The Java code is expected to guard against this path
1931 ShouldNotReachHere();
1932 }
1933
1934 if (displacement < 0 || ((long) displacement + type2aelembytes(basic_type) > HeapWordSize * obj->size())) {
1935 // Reading outside of the object bounds
1936 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading outside object bounds");
1937 }
1938
1939 // Perform basic sanity checks on the read. Primitive reads are permitted to read outside the
1940 // bounds of their fields but object reads must map exactly onto the underlying oop slot.
1941 if (basic_type == T_OBJECT) {
1942 if (obj->is_objArray()) {
1943 if (displacement < arrayOopDesc::base_offset_in_bytes(T_OBJECT)) {
1944 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
1945 }
1946 if (displacement + heapOopSize > arrayOopDesc::base_offset_in_bytes(T_OBJECT) + arrayOop(obj())->length() * heapOopSize) {
1947 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading after last array element");
1948 }
1949 if (((displacement - arrayOopDesc::base_offset_in_bytes(T_OBJECT)) % heapOopSize) != 0) {
1950 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "misaligned object read from array");
1951 }
1952 } else if (obj->is_instance()) {
1953 InstanceKlass* klass = InstanceKlass::cast(is_static ? java_lang_Class::as_Klass(obj()) : obj->klass());
1954 fieldDescriptor fd;
1955 if (!klass->find_field_from_offset(displacement, is_static, &fd)) {
1956 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Can't find field at displacement %d in object of type %s", (int) displacement, klass->external_name()));
1957 }
1958 if (fd.field_type() != T_OBJECT && fd.field_type() != T_ARRAY) {
1959 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Field at displacement %d in object of type %s is %s but expected %s", (int) displacement,
1960 klass->external_name(), type2name(fd.field_type()), type2name(basic_type)));
1961 }
1962 } else if (obj->is_typeArray()) {
1963 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Can't read objects from primitive array");
1964 } else {
1965 ShouldNotReachHere();
1966 }
1967 } else {
1968 if (obj->is_objArray()) {
1969 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Reading primitive from object array");
1970 } else if (obj->is_typeArray()) {
1971 if (displacement < arrayOopDesc::base_offset_in_bytes(ArrayKlass::cast(obj->klass())->element_type())) {
1972 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
1973 }
1974 }
1975 }
1976
1977 jlong value = 0;
1978 switch (basic_type) {
1979 case T_BOOLEAN: value = is_volatile ? obj->bool_field_acquire(displacement) : obj->bool_field(displacement); break;
1980 case T_BYTE: value = is_volatile ? obj->byte_field_acquire(displacement) : obj->byte_field(displacement); break;
1981 case T_SHORT: value = is_volatile ? obj->short_field_acquire(displacement) : obj->short_field(displacement); break;
1982 case T_CHAR: value = is_volatile ? obj->char_field_acquire(displacement) : obj->char_field(displacement); break;
1983 case T_FLOAT:
1984 case T_INT: value = is_volatile ? obj->int_field_acquire(displacement) : obj->int_field(displacement); break;
1985 case T_DOUBLE:
1986 case T_LONG: value = is_volatile ? obj->long_field_acquire(displacement) : obj->long_field(displacement); break;
1987
1988 case T_OBJECT: {
1989 if (displacement == java_lang_Class::component_mirror_offset() && java_lang_Class::is_instance(obj()) &&
1990 (java_lang_Class::as_Klass(obj()) == NULL || !java_lang_Class::as_Klass(obj())->is_array_klass())) {
1991 // Class.componentType for non-array classes can transiently contain an int[] that's
1992 // used for locking so always return null to mimic Class.getComponentType()
1993 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
1994 }
1995
1996 oop value = is_volatile ? obj->obj_field_acquire(displacement) : obj->obj_field(displacement);
1997 if (value == NULL) {
1998 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
1999 } else {
2000 if (value != NULL && !oopDesc::is_oop(value)) {
2001 // Throw an exception to improve debuggability. This check isn't totally reliable because
2002 // is_oop doesn't try to be completety safe but for most invalid values it provides a good
2003 // enough answer. It possible to crash in the is_oop call but that just means the crash happens
2004 // closer to where things went wrong.
2005 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Read bad oop " INTPTR_FORMAT " at offset " JLONG_FORMAT " in object " INTPTR_FORMAT " of type %s",
2006 p2i(value), displacement, p2i(obj()), obj->klass()->external_name()));
2007 }
2008
2009 JVMCIObject result = JVMCIENV->get_object_constant(value);
2010 return JVMCIENV->get_jobject(result);
2011 }
2012 }
2013
2014 default:
2015 ShouldNotReachHere();
2016 }
2017 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(kind, value, JVMCI_CHECK_NULL);
2018 return JVMCIENV->get_jobject(result);
2019 C2V_END
2020
2021 C2V_VMENTRY_0(jboolean, isInstance, (JNIEnv* env, jobject, jobject holder, jobject object))
2022 if (object == NULL || holder == NULL) {
2023 JVMCI_THROW_0(NullPointerException);
2024 }
2025 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2026 Klass* klass = JVMCIENV->asKlass(JVMCIENV->wrap(holder));
2027 return obj->is_a(klass);
2028 C2V_END
2029
2030 C2V_VMENTRY_0(jboolean, isAssignableFrom, (JNIEnv* env, jobject, jobject holder, jobject otherHolder))
2031 if (holder == NULL || otherHolder == NULL) {
2032 JVMCI_THROW_0(NullPointerException);
2033 }
2034 Klass* klass = JVMCIENV->asKlass(JVMCIENV->wrap(holder));
2035 Klass* otherKlass = JVMCIENV->asKlass(JVMCIENV->wrap(otherHolder));
2036 return otherKlass->is_subtype_of(klass);
2037 C2V_END
2038
2039 C2V_VMENTRY_0(jboolean, isTrustedForIntrinsics, (JNIEnv* env, jobject, jobject holder))
2040 if (holder == NULL) {
2041 JVMCI_THROW_0(NullPointerException);
2042 }
2043 InstanceKlass* ik = InstanceKlass::cast(JVMCIENV->asKlass(JVMCIENV->wrap(holder)));
2044 if (ik->class_loader_data()->is_boot_class_loader_data() || ik->class_loader_data()->is_platform_class_loader_data()) {
2045 return true;
2046 }
2047 return false;
2048 C2V_END
2049
2050 C2V_VMENTRY_NULL(jobject, asJavaType, (JNIEnv* env, jobject, jobject object))
2051 if (object == NULL) {
2052 JVMCI_THROW_0(NullPointerException);
2053 }
2054 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2055 if (java_lang_Class::is_instance(obj())) {
2056 if (java_lang_Class::is_primitive(obj())) {
2057 JVMCIObject type = JVMCIENV->get_jvmci_primitive_type(java_lang_Class::primitive_type(obj()));
2058 return JVMCIENV->get_jobject(type);
2059 }
2060 Klass* klass = java_lang_Class::as_Klass(obj());
2061 JVMCIKlassHandle klass_handle(THREAD);
2062 klass_handle = klass;
2063 JVMCIObject type = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
2064 return JVMCIENV->get_jobject(type);
2065 }
2066 return NULL;
2067 C2V_END
2068
2069
2070 C2V_VMENTRY_NULL(jobject, asString, (JNIEnv* env, jobject, jobject object))
2071 if (object == NULL) {
2072 JVMCI_THROW_0(NullPointerException);
2073 }
2074 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2075 const char* str = java_lang_String::as_utf8_string(obj());
2076 JVMCIObject result = JVMCIENV->create_string(str, JVMCI_CHECK_NULL);
2077 return JVMCIENV->get_jobject(result);
2078 C2V_END
2079
2080
2081 C2V_VMENTRY_0(jboolean, equals, (JNIEnv* env, jobject, jobject x, jlong xHandle, jobject y, jlong yHandle))
2082 if (x == NULL || y == NULL) {
2083 JVMCI_THROW_0(NullPointerException);
2084 }
2085 return JVMCIENV->resolve_handle(xHandle) == JVMCIENV->resolve_handle(yHandle);
2086 C2V_END
2087
2088 C2V_VMENTRY_NULL(jobject, getJavaMirror, (JNIEnv* env, jobject, jobject object))
2089 if (object == NULL) {
2090 JVMCI_THROW_0(NullPointerException);
2091 }
2092 JVMCIObject base_object = JVMCIENV->wrap(object);
2093 Handle mirror;
2094 if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
2095 mirror = Handle(THREAD, JVMCIENV->asKlass(base_object)->java_mirror());
2096 } else if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(base_object)) {
2097 mirror = JVMCIENV->asConstant(JVMCIENV->get_HotSpotResolvedPrimitiveType_mirror(base_object), JVMCI_CHECK_NULL);
2098 } else {
2099 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2100 err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
2101 }
2102 JVMCIObject result = JVMCIENV->get_object_constant(mirror());
2103 return JVMCIENV->get_jobject(result);
2104 C2V_END
2105
2106
2107 C2V_VMENTRY_0(jint, getArrayLength, (JNIEnv* env, jobject, jobject x))
2108 if (x == NULL) {
2109 JVMCI_THROW_0(NullPointerException);
2110 }
2111 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2112 if (xobj->klass()->is_array_klass()) {
2113 return arrayOop(xobj())->length();
2114 }
2115 return -1;
2116 C2V_END
2117
2118
2119 C2V_VMENTRY_NULL(jobject, readArrayElement, (JNIEnv* env, jobject, jobject x, int index))
2120 if (x == NULL) {
2121 JVMCI_THROW_0(NullPointerException);
2122 }
2123 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_NULL);
2124 if (xobj->klass()->is_array_klass()) {
2125 arrayOop array = arrayOop(xobj());
2126 BasicType element_type = ArrayKlass::cast(array->klass())->element_type();
2127 if (index < 0 || index >= array->length()) {
2128 return NULL;
2129 }
2130 JVMCIObject result;
2131
2132 if (element_type == T_OBJECT) {
2133 result = JVMCIENV->get_object_constant(objArrayOop(xobj())->obj_at(index));
2134 if (result.is_null()) {
2135 result = JVMCIENV->get_JavaConstant_NULL_POINTER();
2136 }
2137 } else {
2138 jvalue value;
2139 switch (element_type) {
2140 case T_DOUBLE: value.d = typeArrayOop(xobj())->double_at(index); break;
2141 case T_FLOAT: value.f = typeArrayOop(xobj())->float_at(index); break;
2142 case T_LONG: value.j = typeArrayOop(xobj())->long_at(index); break;
2143 case T_INT: value.i = typeArrayOop(xobj())->int_at(index); break;
2144 case T_SHORT: value.s = typeArrayOop(xobj())->short_at(index); break;
2145 case T_CHAR: value.c = typeArrayOop(xobj())->char_at(index); break;
2146 case T_BYTE: value.b = typeArrayOop(xobj())->byte_at(index); break;
2147 case T_BOOLEAN: value.z = typeArrayOop(xobj())->byte_at(index) & 1; break;
2148 default: ShouldNotReachHere();
2149 }
2150 result = JVMCIENV->create_box(element_type, &value, JVMCI_CHECK_NULL);
2151 }
2152 assert(!result.is_null(), "must have a value");
2153 return JVMCIENV->get_jobject(result);
2154 }
2155 return NULL;;
2156 C2V_END
2157
2158
2159 C2V_VMENTRY_0(jint, arrayBaseOffset, (JNIEnv* env, jobject, jobject kind))
2160 if (kind == NULL) {
2161 JVMCI_THROW_0(NullPointerException);
2162 }
2163 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->wrap(kind), JVMCI_CHECK_0);
2164 return arrayOopDesc::header_size(type) * HeapWordSize;
2165 C2V_END
2166
2167 C2V_VMENTRY_0(jint, arrayIndexScale, (JNIEnv* env, jobject, jobject kind))
2168 if (kind == NULL) {
2169 JVMCI_THROW_0(NullPointerException);
2170 }
2171 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->wrap(kind), JVMCI_CHECK_0);
2172 return type2aelembytes(type);
2173 C2V_END
2174
2175 C2V_VMENTRY(void, deleteGlobalHandle, (JNIEnv* env, jobject, jlong h))
2176 jobject handle = (jobject)(address)h;
2177 if (handle != NULL) {
2178 JVMCIENV->runtime()->destroy_global(handle);
2179 }
2180 }
2181
2182 static void requireJVMCINativeLibrary(JVMCI_TRAPS) {
2183 if (!UseJVMCINativeLibrary) {
2184 JVMCI_THROW_MSG(UnsupportedOperationException, "JVMCI shared library is not enabled (requires -XX:+UseJVMCINativeLibrary)");
2185 }
2186 }
2187
2188 C2V_VMENTRY_NULL(jlongArray, registerNativeMethods, (JNIEnv* env, jobject, jclass mirror))
2189 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2190 requireInHotSpot("registerNativeMethods", JVMCI_CHECK_NULL);
2191 char* sl_path;
2192 void* sl_handle;
2193 JVMCIRuntime* runtime = JVMCI::compiler_runtime();
2194 {
2195 // Ensure the JVMCI shared library runtime is initialized.
2196 JVMCIEnv __peer_jvmci_env__(thread, false, __FILE__, __LINE__);
2197 JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2198 HandleMark hm(THREAD);
2199 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(peerEnv);
2200 if (peerEnv->has_pending_exception()) {
2201 peerEnv->describe_pending_exception(true);
2202 }
2203 sl_handle = JVMCI::get_shared_library(sl_path, false);
2204 if (sl_handle == NULL) {
2205 JVMCI_THROW_MSG_0(InternalError, err_msg("Error initializing JVMCI runtime %d", runtime->id()));
2206 }
2207 }
2208
2209 if (mirror == NULL) {
2210 JVMCI_THROW_0(NullPointerException);
2211 }
2212 Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
2213 if (klass == NULL || !klass->is_instance_klass()) {
2214 JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type");
2215 }
2216
2217 InstanceKlass* iklass = InstanceKlass::cast(klass);
2218 for (int i = 0; i < iklass->methods()->length(); i++) {
2219 methodHandle method(THREAD, iklass->methods()->at(i));
2220 if (method->is_native()) {
2221
2222 // Compute argument size
2223 int args_size = 1 // JNIEnv
2224 + (method->is_static() ? 1 : 0) // class for static methods
2225 + method->size_of_parameters(); // actual parameters
2226
2227 // 1) Try JNI short style
2228 stringStream st;
2229 char* pure_name = NativeLookup::pure_jni_name(method);
2230 guarantee(pure_name != NULL, "Illegal native method name encountered");
2231 os::print_jni_name_prefix_on(&st, args_size);
2232 st.print_raw(pure_name);
2233 os::print_jni_name_suffix_on(&st, args_size);
2234 char* jni_name = st.as_string();
2235
2236 address entry = (address) os::dll_lookup(sl_handle, jni_name);
2237 if (entry == NULL) {
2238 // 2) Try JNI long style
2239 st.reset();
2240 char* long_name = NativeLookup::long_jni_name(method);
2241 guarantee(long_name != NULL, "Illegal native method name encountered");
2242 os::print_jni_name_prefix_on(&st, args_size);
2243 st.print_raw(pure_name);
2244 st.print_raw(long_name);
2245 os::print_jni_name_suffix_on(&st, args_size);
2246 char* jni_long_name = st.as_string();
2247 entry = (address) os::dll_lookup(sl_handle, jni_long_name);
2248 if (entry == NULL) {
2249 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [neither %s nor %s exist in %s]",
2250 method->name_and_sig_as_C_string(),
2251 jni_name, jni_long_name, sl_path));
2252 }
2253 }
2254
2255 if (method->has_native_function() && entry != method->native_function()) {
2256 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [cannot re-link from " PTR_FORMAT " to " PTR_FORMAT "]",
2257 method->name_and_sig_as_C_string(), p2i(method->native_function()), p2i(entry)));
2258 }
2259 method->set_native_function(entry, Method::native_bind_event_is_interesting);
2260 log_debug(jni, resolve)("[Dynamic-linking native method %s.%s ... JNI] @ " PTR_FORMAT,
2261 method->method_holder()->external_name(),
2262 method->name()->as_C_string(),
2263 p2i((void*) entry));
2264 }
2265 }
2266
2267 typeArrayOop info_oop = oopFactory::new_longArray(4, CHECK_0);
2268 jlongArray info = (jlongArray) JNIHandles::make_local(THREAD, info_oop);
2269 runtime->init_JavaVM_info(info, JVMCI_CHECK_0);
2270 return info;
2271 }
2272
2273 C2V_VMENTRY_PREFIX(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject c2vm))
2274 if (thread == NULL) {
2275 // Called from unattached JVMCI shared library thread
2276 return false;
2277 }
2278 JVMCITraceMark jtm("isCurrentThreadAttached");
2279 if (thread->jni_environment() == env) {
2280 C2V_BLOCK(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject))
2281 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2282 JVMCIRuntime* runtime = JVMCI::compiler_runtime();
2283 if (runtime == NULL || !runtime->has_shared_library_javavm()) {
2284 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in isCurrentThreadAttached");
2285 }
2286 JNIEnv* peerEnv;
2287 return runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) == JNI_OK;
2288 }
2289 return true;
2290 C2V_END
2291
2292 C2V_VMENTRY_PREFIX(jlong, getCurrentJavaThread, (JNIEnv* env, jobject c2vm))
2293 if (thread == NULL) {
2294 // Called from unattached JVMCI shared library thread
2295 return 0L;
2296 }
2297 JVMCITraceMark jtm("getCurrentJavaThread");
2298 return (jlong) p2i(thread);
2299 C2V_END
2300
2301 C2V_VMENTRY_PREFIX(jboolean, attachCurrentThread, (JNIEnv* env, jobject c2vm, jbyteArray name, jboolean as_daemon))
2302 if (thread == NULL) {
2303 // Called from unattached JVMCI shared library thread
2304 guarantee(name != NULL, "libjvmci caller must pass non-null name");
2305
2306 extern struct JavaVM_ main_vm;
2307 JNIEnv* hotspotEnv;
2308
2309 int name_len = env->GetArrayLength(name);
2310 char name_buf[64]; // Cannot use Resource heap as it requires a current thread
2311 int to_copy = MIN2(name_len, (int) sizeof(name_buf) - 1);
2312 env->GetByteArrayRegion(name, 0, to_copy, (jbyte*) name_buf);
2313 name_buf[to_copy] = '\0';
2314 JavaVMAttachArgs attach_args;
2315 attach_args.version = JNI_VERSION_1_2;
2316 attach_args.name = name_buf;
2317 attach_args.group = NULL;
2318 jint res = as_daemon ? main_vm.AttachCurrentThreadAsDaemon((void**) &hotspotEnv, &attach_args) :
2319 main_vm.AttachCurrentThread((void**) &hotspotEnv, &attach_args);
2320 if (res != JNI_OK) {
2321 JNI_THROW_("attachCurrentThread", InternalError, err_msg("Trying to attach thread returned %d", res), false);
2322 }
2323 return true;
2324 }
2325 JVMCITraceMark jtm("attachCurrentThread");
2326 if (thread->jni_environment() == env) {
2327 // Called from HotSpot
2328 C2V_BLOCK(jboolean, attachCurrentThread, (JNIEnv* env, jobject, jboolean))
2329 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2330 JVMCIRuntime* runtime = JVMCI::compiler_runtime();
2331 if (runtime == NULL || !runtime->has_shared_library_javavm()) {
2332 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in attachCurrentThread");
2333 }
2334
2335 JavaVMAttachArgs attach_args;
2336 attach_args.version = JNI_VERSION_1_2;
2337 attach_args.name = const_cast<char*>(thread->name());
2338 attach_args.group = NULL;
2339 JNIEnv* peerJNIEnv;
2340 if (runtime->GetEnv(thread, (void**) &peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2341 return false;
2342 }
2343 jint res = as_daemon ? runtime->AttachCurrentThreadAsDaemon(thread, (void**) &peerJNIEnv, &attach_args) :
2344 runtime->AttachCurrentThread(thread, (void**) &peerJNIEnv, &attach_args);
2345
2346 if (res == JNI_OK) {
2347 guarantee(peerJNIEnv != NULL, "must be");
2348 JVMCI_event_1("attached to JavaVM for JVMCI runtime %d", runtime->id());
2349 return true;
2350 }
2351 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, attach_args.name));
2352 }
2353 // Called from JVMCI shared library
2354 return false;
2355 C2V_END
2356
2357 C2V_VMENTRY_PREFIX(void, detachCurrentThread, (JNIEnv* env, jobject c2vm))
2358 if (thread == NULL) {
2359 // Called from unattached JVMCI shared library thread
2360 JNI_THROW("detachCurrentThread", IllegalStateException, "Cannot detach non-attached thread");
2361 }
2362 JVMCITraceMark jtm("detachCurrentThread");
2363 if (thread->jni_environment() == env) {
2364 // Called from HotSpot
2365 C2V_BLOCK(void, detachCurrentThread, (JNIEnv* env, jobject))
2366 requireJVMCINativeLibrary(JVMCI_CHECK);
2367 requireInHotSpot("detachCurrentThread", JVMCI_CHECK);
2368 JVMCIRuntime* runtime = JVMCI::compiler_runtime();
2369 if (runtime == NULL || !runtime->has_shared_library_javavm()) {
2370 JVMCI_THROW_MSG(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in detachCurrentThread");
2371 }
2372 JNIEnv* peerJNIEnv;
2373 if (runtime->GetEnv(thread, (void**) &peerJNIEnv, JNI_VERSION_1_2) != JNI_OK) {
2374 JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot detach non-attached thread: %s", thread->name()));
2375 }
2376 jint res = runtime->DetachCurrentThread(thread);
2377 if (res != JNI_OK) {
2378 JVMCI_THROW_MSG(InternalError, err_msg("Error %d while attaching %s", res, thread->name()));
2379 }
2380 } else {
2381 // Called from attached JVMCI shared library thread
2382 extern struct JavaVM_ main_vm;
2383 jint res = main_vm.DetachCurrentThread();
2384 if (res != JNI_OK) {
2385 JNI_THROW("detachCurrentThread", InternalError, "Cannot detach non-attached thread");
2386 }
2387 }
2388 C2V_END
2389
2390 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle))
2391 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2392 if (obj_handle == NULL) {
2393 return 0L;
2394 }
2395 JVMCIEnv __peer_jvmci_env__(thread, !JVMCIENV->is_hotspot(), __FILE__, __LINE__);
2396 JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2397 JVMCIEnv* thisEnv = JVMCIENV;
2398
2399 JVMCIObject obj = thisEnv->wrap(obj_handle);
2400 JVMCIObject result;
2401 if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) {
2402 methodHandle method(THREAD, thisEnv->asMethod(obj));
2403 result = peerEnv->get_jvmci_method(method, JVMCI_CHECK_0);
2404 } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) {
2405 Klass* klass = thisEnv->asKlass(obj);
2406 JVMCIKlassHandle klass_handle(THREAD);
2407 klass_handle = klass;
2408 result = peerEnv->get_jvmci_type(klass_handle, JVMCI_CHECK_0);
2409 } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) {
2410 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0);
2411 result = peerEnv->get_jvmci_primitive_type(type);
2412 } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) ||
2413 thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) {
2414 Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0);
2415 result = peerEnv->get_object_constant(constant());
2416 } else if (thisEnv->isa_HotSpotNmethod(obj)) {
2417 nmethodLocker locker;
2418 nmethod* nm = JVMCIENV->get_nmethod(obj, locker);
2419 if (nm != NULL) {
2420 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2421 if (data != NULL) {
2422 if (peerEnv->is_hotspot()) {
2423 // Only the mirror in the HotSpot heap is accessible
2424 // through JVMCINMethodData
2425 oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true);
2426 if (nmethod_mirror != NULL) {
2427 result = HotSpotJVMCI::wrap(nmethod_mirror);
2428 }
2429 }
2430 }
2431 }
2432 if (result.is_null()) {
2433 JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj);
2434 methodHandle mh(THREAD, thisEnv->asMethod(methodObject));
2435 jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj);
2436 jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj);
2437 JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj);
2438 const char* cstring = name_string.is_null() ? NULL : thisEnv->as_utf8_string(name_string);
2439 // Create a new HotSpotNmethod instance in the peer runtime
2440 result = peerEnv->new_HotSpotNmethod(mh, cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0);
2441 if (nm == NULL) {
2442 // nmethod must have been unloaded
2443 } else {
2444 // Link the new HotSpotNmethod to the nmethod
2445 peerEnv->initialize_installed_code(result, nm, JVMCI_CHECK_0);
2446 // Only HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime.
2447 if (peerEnv->is_hotspot()) {
2448 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2449 if (data == NULL) {
2450 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot set HotSpotNmethod mirror for default nmethod");
2451 }
2452 if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != NULL) {
2453 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod");
2454 }
2455 oop nmethod_mirror = HotSpotJVMCI::resolve(result);
2456 data->set_nmethod_mirror(nm, nmethod_mirror);
2457 }
2458 }
2459 }
2460 } else {
2461 JVMCI_THROW_MSG_0(IllegalArgumentException,
2462 err_msg("Cannot translate object of type: %s", thisEnv->klass_name(obj)));
2463 }
2464 return (jlong) peerEnv->make_global(result).as_jobject();
2465 }
2466
2467 C2V_VMENTRY_NULL(jobject, unhand, (JNIEnv* env, jobject, jlong obj_handle))
2468 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2469 if (obj_handle == 0L) {
2470 return NULL;
2471 }
2472 jobject global_handle = (jobject) obj_handle;
2473 JVMCIObject global_handle_obj = JVMCIENV->wrap((jobject) obj_handle);
2474 jobject result = JVMCIENV->make_local(global_handle_obj).as_jobject();
2475
2476 JVMCIENV->destroy_global(global_handle_obj);
2477 return result;
2478 }
2479
2480 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle))
2481 JVMCIObject code = JVMCIENV->wrap(code_handle);
2482 // Execute this operation for the side effect of updating the InstalledCode state
2483 nmethodLocker locker;
2484 JVMCIENV->get_nmethod(code, locker);
2485 }
2486
2487 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2488 JVMCIObject code = JVMCIENV->wrap(code_handle);
2489 nmethodLocker locker;
2490 CodeBlob* cb = JVMCIENV->get_code_blob(code, locker);
2491 if (cb == NULL) {
2492 return NULL;
2493 }
2494 int code_size = cb->code_size();
2495 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2496 JVMCIENV->copy_bytes_from((jbyte*) cb->code_begin(), result, 0, code_size);
2497 return JVMCIENV->get_jbyteArray(result);
2498 }
2499
2500 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, jobject jvmci_method))
2501 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2502 methodHandle m(THREAD, JVMCIENV->asMethod(jvmci_method));
2503 oop executable;
2504 if (m->is_class_initializer()) {
2505 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2506 "Cannot create java.lang.reflect.Method for class initializer");
2507 }
2508 else if (m->is_object_constructor() || m->is_static_init_factory()) {
2509 executable = Reflection::new_constructor(m, CHECK_NULL);
2510 } else {
2511 executable = Reflection::new_method(m, false, CHECK_NULL);
2512 }
2513 return JNIHandles::make_local(THREAD, executable);
2514 }
2515
2516 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, jobject jvmci_type, jint index))
2517 requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL);
2518 Klass* klass = JVMCIENV->asKlass(jvmci_type);
2519 if (!klass->is_instance_klass()) {
2520 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2521 err_msg("Expected non-primitive type, got %s", klass->external_name()));
2522 }
2523 InstanceKlass* iklass = InstanceKlass::cast(klass);
2524 Array<u2>* fields = iklass->fields();
2525 if (index < 0 ||index > fields->length()) {
2526 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2527 err_msg("Field index %d out of bounds for %s", index, klass->external_name()));
2528 }
2529 fieldDescriptor fd(iklass, index);
2530 oop reflected = Reflection::new_field(&fd, CHECK_NULL);
2531 return JNIHandles::make_local(THREAD, reflected);
2532 }
2533
2534 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current))
2535 FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address);
2536 int result_length = 0;
2537 for (FailedSpeculation* fs = head; fs != NULL; fs = fs->next()) {
2538 result_length++;
2539 }
2540 int current_length = 0;
2541 JVMCIObjectArray current_array = NULL;
2542 if (current != NULL) {
2543 current_array = JVMCIENV->wrap(current);
2544 current_length = JVMCIENV->get_length(current_array);
2545 if (current_length == result_length) {
2546 // No new failures
2547 return current;
2548 }
2549 }
2550 JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL);
2551 int result_index = 0;
2552 for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) {
2553 assert(fs != NULL, "npe");
2554 JVMCIPrimitiveArray entry;
2555 if (result_index < current_length) {
2556 entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index);
2557 } else {
2558 entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL);
2559 JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len());
2560 }
2561 JVMCIENV->put_object_at(result, result_index++, entry);
2562 }
2563 return JVMCIENV->get_jobjectArray(result);
2564 }
2565
2566 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, jobject jvmci_method))
2567 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
2568 MethodData* method_data = method->method_data();
2569 if (method_data == NULL) {
2570 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
2571 method_data = MethodData::allocate(loader_data, method, CHECK_0);
2572 method->set_method_data(method_data);
2573 }
2574 return (jlong) method_data->get_failed_speculations_address();
2575 }
2576
2577 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address))
2578 FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address);
2579 }
2580
2581 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj))
2582 JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj);
2583 int speculation_len = JVMCIENV->get_length(speculation_handle);
2584 char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len);
2585 JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len);
2586 return FailedSpeculation::add_failed_speculation(NULL, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len);
2587 }
2588
2589 C2V_VMENTRY(void, callSystemExit, (JNIEnv* env, jobject, jint status))
2590 JavaValue result(T_VOID);
2591 JavaCallArguments jargs(1);
2592 jargs.push_int(status);
2593 JavaCalls::call_static(&result,
2594 vmClasses::System_klass(),
2595 vmSymbols::exit_method_name(),
2596 vmSymbols::int_void_signature(),
2597 &jargs,
2598 CHECK);
2599 }
2600
2601 C2V_VMENTRY_0(jlong, ticksNow, (JNIEnv* env, jobject))
2602 return CompilerEvent::ticksNow();
2603 }
2604
2605 C2V_VMENTRY_0(jint, registerCompilerPhase, (JNIEnv* env, jobject, jstring jphase_name))
2606 #if INCLUDE_JFR
2607 JVMCIObject phase_name = JVMCIENV->wrap(jphase_name);
2608 const char *name = JVMCIENV->as_utf8_string(phase_name);
2609 return CompilerEvent::PhaseEvent::get_phase_id(name, true, true, true);
2610 #else
2611 return -1;
2612 #endif // !INCLUDE_JFR
2613 }
2614
2615 C2V_VMENTRY(void, notifyCompilerPhaseEvent, (JNIEnv* env, jobject, jlong startTime, jint phase, jint compileId, jint level))
2616 EventCompilerPhase event;
2617 if (event.should_commit()) {
2618 CompilerEvent::PhaseEvent::post(event, startTime, phase, compileId, level);
2619 }
2620 }
2621
2622 C2V_VMENTRY(void, notifyCompilerInliningEvent, (JNIEnv* env, jobject, jint compileId, jobject caller, jobject callee, jboolean succeeded, jstring jmessage, jint bci))
2623 EventCompilerInlining event;
2624 if (event.should_commit()) {
2625 Method* caller_method = JVMCIENV->asMethod(caller);
2626 Method* callee_method = JVMCIENV->asMethod(callee);
2627 JVMCIObject message = JVMCIENV->wrap(jmessage);
2628 CompilerEvent::InlineEvent::post(event, compileId, caller_method, callee_method, succeeded, JVMCIENV->as_utf8_string(message), bci);
2629 }
2630 }
2631
2632 C2V_VMENTRY(void, setThreadLocalObject, (JNIEnv* env, jobject, jint id, jobject value))
2633 requireInHotSpot("setThreadLocalObject", JVMCI_CHECK);
2634 if (id == 0) {
2635 thread->set_jvmci_reserved_oop0(JNIHandles::resolve(value));
2636 return;
2637 }
2638 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
2639 err_msg("%d is not a valid thread local id", id));
2640 }
2641
2642 C2V_VMENTRY_NULL(jobject, getThreadLocalObject, (JNIEnv* env, jobject, jint id))
2643 requireInHotSpot("getThreadLocalObject", JVMCI_CHECK_NULL);
2644 if (id == 0) {
2645 return JNIHandles::make_local(thread->get_jvmci_reserved_oop0());
2646 }
2647 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
2648 err_msg("%d is not a valid thread local id", id));
2649 }
2650
2651 C2V_VMENTRY(void, setThreadLocalLong, (JNIEnv* env, jobject, jint id, jlong value))
2652 requireInHotSpot("setThreadLocalLong", JVMCI_CHECK);
2653 if (id == 0) {
2654 thread->set_jvmci_reserved0(value);
2655 } else if (id == 1) {
2656 thread->set_jvmci_reserved1(value);
2657 } else {
2658 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
2659 err_msg("%d is not a valid thread local id", id));
2660 }
2661 }
2662
2663 C2V_VMENTRY_0(jlong, getThreadLocalLong, (JNIEnv* env, jobject, jint id))
2664 requireInHotSpot("getThreadLocalLong", JVMCI_CHECK_0);
2665 if (id == 0) {
2666 return thread->get_jvmci_reserved0();
2667 } else if (id == 1) {
2668 return thread->get_jvmci_reserved1();
2669 } else {
2670 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
2671 err_msg("%d is not a valid thread local id", id));
2672 }
2673 }
2674
2675 #define CC (char*) /*cast a literal from (const char*)*/
2676 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
2677
2678 #define STRING "Ljava/lang/String;"
2679 #define OBJECT "Ljava/lang/Object;"
2680 #define CLASS "Ljava/lang/Class;"
2681 #define OBJECTCONSTANT "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;"
2682 #define HANDLECONSTANT "Ljdk/vm/ci/hotspot/IndirectHotSpotObjectConstantImpl;"
2683 #define EXECUTABLE "Ljava/lang/reflect/Executable;"
2684 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;"
2685 #define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;"
2686 #define TARGET_DESCRIPTION "Ljdk/vm/ci/code/TargetDescription;"
2687 #define BYTECODE_FRAME "Ljdk/vm/ci/code/BytecodeFrame;"
2688 #define JAVACONSTANT "Ljdk/vm/ci/meta/JavaConstant;"
2689 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;"
2690 #define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
2691 #define HS_RESOLVED_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
2692 #define HS_RESOLVED_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
2693 #define HS_RESOLVED_TYPE "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;"
2694 #define HS_RESOLVED_FIELD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaField;"
2695 #define HS_INSTALLED_CODE "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;"
2696 #define HS_NMETHOD "Ljdk/vm/ci/hotspot/HotSpotNmethod;"
2697 #define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
2698 #define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
2699 #define HS_CONFIG "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
2700 #define HS_METADATA "Ljdk/vm/ci/hotspot/HotSpotMetaData;"
2701 #define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
2702 #define HS_SPECULATION_LOG "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
2703 #define METASPACE_OBJECT "Ljdk/vm/ci/hotspot/MetaspaceObject;"
2704 #define REFLECTION_EXECUTABLE "Ljava/lang/reflect/Executable;"
2705 #define REFLECTION_FIELD "Ljava/lang/reflect/Field;"
2706 #define METASPACE_METHOD_DATA "J"
2707
2708 JNINativeMethod CompilerToVM::methods[] = {
2709 {CC "getBytecode", CC "(" HS_RESOLVED_METHOD ")[B", FN_PTR(getBytecode)},
2710 {CC "getExceptionTableStart", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getExceptionTableStart)},
2711 {CC "getExceptionTableLength", CC "(" HS_RESOLVED_METHOD ")I", FN_PTR(getExceptionTableLength)},
2712 {CC "findUniqueConcreteMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")" HS_RESOLVED_METHOD, FN_PTR(findUniqueConcreteMethod)},
2713 {CC "getImplementor", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS, FN_PTR(getImplementor)},
2714 {CC "getStackTraceElement", CC "(" HS_RESOLVED_METHOD "I)" STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)},
2715 {CC "methodIsIgnoredBySecurityStackWalk", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)},
2716 {CC "setNotInlinableOrCompilable", CC "(" HS_RESOLVED_METHOD ")V", FN_PTR(setNotInlinableOrCompilable)},
2717 {CC "isCompilable", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(isCompilable)},
2718 {CC "hasNeverInlineDirective", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(hasNeverInlineDirective)},
2719 {CC "shouldInlineMethod", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(shouldInlineMethod)},
2720 {CC "lookupType", CC "(" STRING HS_RESOLVED_KLASS "Z)" HS_RESOLVED_TYPE, FN_PTR(lookupType)},
2721 {CC "getArrayType", CC "(" HS_RESOLVED_TYPE ")" HS_RESOLVED_KLASS, FN_PTR(getArrayType)},
2722 {CC "lookupClass", CC "(" CLASS ")" HS_RESOLVED_TYPE, FN_PTR(lookupClass)},
2723 {CC "lookupNameInPool", CC "(" HS_CONSTANT_POOL "I)" STRING, FN_PTR(lookupNameInPool)},
2724 {CC "lookupNameAndTypeRefIndexInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(lookupNameAndTypeRefIndexInPool)},
2725 {CC "lookupSignatureInPool", CC "(" HS_CONSTANT_POOL "I)" STRING, FN_PTR(lookupSignatureInPool)},
2726 {CC "lookupKlassRefIndexInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(lookupKlassRefIndexInPool)},
2727 {CC "lookupKlassInPool", CC "(" HS_CONSTANT_POOL "I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)},
2728 {CC "lookupAppendixInPool", CC "(" HS_CONSTANT_POOL "I)" OBJECTCONSTANT, FN_PTR(lookupAppendixInPool)},
2729 {CC "lookupMethodInPool", CC "(" HS_CONSTANT_POOL "IB)" HS_RESOLVED_METHOD, FN_PTR(lookupMethodInPool)},
2730 {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(constantPoolRemapInstructionOperandFromCache)},
2731 {CC "resolvePossiblyCachedConstantInPool", CC "(" HS_CONSTANT_POOL "I)" JAVACONSTANT, FN_PTR(resolvePossiblyCachedConstantInPool)},
2732 {CC "resolveTypeInPool", CC "(" HS_CONSTANT_POOL "I)" HS_RESOLVED_KLASS, FN_PTR(resolveTypeInPool)},
2733 {CC "resolveFieldInPool", CC "(" HS_CONSTANT_POOL "I" HS_RESOLVED_METHOD "B[I)" HS_RESOLVED_KLASS, FN_PTR(resolveFieldInPool)},
2734 {CC "resolveInvokeDynamicInPool", CC "(" HS_CONSTANT_POOL "I)V", FN_PTR(resolveInvokeDynamicInPool)},
2735 {CC "resolveInvokeHandleInPool", CC "(" HS_CONSTANT_POOL "I)V", FN_PTR(resolveInvokeHandleInPool)},
2736 {CC "isResolvedInvokeHandleInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(isResolvedInvokeHandleInPool)},
2737 {CC "resolveMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(resolveMethod)},
2738 {CC "getSignaturePolymorphicHolders", CC "()[" STRING, FN_PTR(getSignaturePolymorphicHolders)},
2739 {CC "getVtableIndexForInterfaceMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")I", FN_PTR(getVtableIndexForInterfaceMethod)},
2740 {CC "getClassInitializer", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(getClassInitializer)},
2741 {CC "hasFinalizableSubclass", CC "(" HS_RESOLVED_KLASS ")Z", FN_PTR(hasFinalizableSubclass)},
2742 {CC "getMaxCallTargetOffset", CC "(J)J", FN_PTR(getMaxCallTargetOffset)},
2743 {CC "asResolvedJavaMethod", CC "(" EXECUTABLE ")" HS_RESOLVED_METHOD, FN_PTR(asResolvedJavaMethod)},
2744 {CC "getResolvedJavaMethod", CC "(" OBJECTCONSTANT "J)" HS_RESOLVED_METHOD, FN_PTR(getResolvedJavaMethod)},
2745 {CC "getConstantPool", CC "(" METASPACE_OBJECT ")" HS_CONSTANT_POOL, FN_PTR(getConstantPool)},
2746 {CC "getResolvedJavaType0", CC "(Ljava/lang/Object;JZ)" HS_RESOLVED_KLASS, FN_PTR(getResolvedJavaType0)},
2747 {CC "readConfiguration", CC "()[" OBJECT, FN_PTR(readConfiguration)},
2748 {CC "installCode", CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE INSTALLED_CODE "J[B)I", FN_PTR(installCode)},
2749 {CC "getMetadata", CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE HS_METADATA ")I", FN_PTR(getMetadata)},
2750 {CC "resetCompilationStatistics", CC "()V", FN_PTR(resetCompilationStatistics)},
2751 {CC "disassembleCodeBlob", CC "(" INSTALLED_CODE ")" STRING, FN_PTR(disassembleCodeBlob)},
2752 {CC "executeHotSpotNmethod", CC "([" OBJECT HS_NMETHOD ")" OBJECT, FN_PTR(executeHotSpotNmethod)},
2753 {CC "getLineNumberTable", CC "(" HS_RESOLVED_METHOD ")[J", FN_PTR(getLineNumberTable)},
2754 {CC "getLocalVariableTableStart", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getLocalVariableTableStart)},
2755 {CC "getLocalVariableTableLength", CC "(" HS_RESOLVED_METHOD ")I", FN_PTR(getLocalVariableTableLength)},
2756 {CC "reprofile", CC "(" HS_RESOLVED_METHOD ")V", FN_PTR(reprofile)},
2757 {CC "invalidateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(invalidateHotSpotNmethod)},
2758 {CC "collectCounters", CC "()[J", FN_PTR(collectCounters)},
2759 {CC "getCountersSize", CC "()I", FN_PTR(getCountersSize)},
2760 {CC "setCountersSize", CC "(I)Z", FN_PTR(setCountersSize)},
2761 {CC "allocateCompileId", CC "(" HS_RESOLVED_METHOD "I)I", FN_PTR(allocateCompileId)},
2762 {CC "isMature", CC "(" METASPACE_METHOD_DATA ")Z", FN_PTR(isMature)},
2763 {CC "hasCompiledCodeForOSR", CC "(" HS_RESOLVED_METHOD "II)Z", FN_PTR(hasCompiledCodeForOSR)},
2764 {CC "getSymbol", CC "(J)" STRING, FN_PTR(getSymbol)},
2765 {CC "iterateFrames", CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT, FN_PTR(iterateFrames)},
2766 {CC "materializeVirtualObjects", CC "(" HS_STACK_FRAME_REF "Z)V", FN_PTR(materializeVirtualObjects)},
2767 {CC "shouldDebugNonSafepoints", CC "()Z", FN_PTR(shouldDebugNonSafepoints)},
2768 {CC "writeDebugOutput", CC "(JIZ)V", FN_PTR(writeDebugOutput)},
2769 {CC "flushDebugOutput", CC "()V", FN_PTR(flushDebugOutput)},
2770 {CC "methodDataProfileDataSize", CC "(JI)I", FN_PTR(methodDataProfileDataSize)},
2771 {CC "getFingerprint", CC "(J)J", FN_PTR(getFingerprint)},
2772 {CC "interpreterFrameSize", CC "(" BYTECODE_FRAME ")I", FN_PTR(interpreterFrameSize)},
2773 {CC "compileToBytecode", CC "(" OBJECTCONSTANT ")V", FN_PTR(compileToBytecode)},
2774 {CC "getFlagValue", CC "(" STRING ")" OBJECT, FN_PTR(getFlagValue)},
2775 {CC "getInterfaces", CC "(" HS_RESOLVED_KLASS ")[" HS_RESOLVED_KLASS, FN_PTR(getInterfaces)},
2776 {CC "getComponentType", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_TYPE, FN_PTR(getComponentType)},
2777 {CC "ensureInitialized", CC "(" HS_RESOLVED_KLASS ")V", FN_PTR(ensureInitialized)},
2778 {CC "ensureLinked", CC "(" HS_RESOLVED_KLASS ")V", FN_PTR(ensureLinked)},
2779 {CC "getIdentityHashCode", CC "(" OBJECTCONSTANT ")I", FN_PTR(getIdentityHashCode)},
2780 {CC "isInternedString", CC "(" OBJECTCONSTANT ")Z", FN_PTR(isInternedString)},
2781 {CC "unboxPrimitive", CC "(" OBJECTCONSTANT ")" OBJECT, FN_PTR(unboxPrimitive)},
2782 {CC "boxPrimitive", CC "(" OBJECT ")" OBJECTCONSTANT, FN_PTR(boxPrimitive)},
2783 {CC "getDeclaredConstructors", CC "(" HS_RESOLVED_KLASS ")[" RESOLVED_METHOD, FN_PTR(getDeclaredConstructors)},
2784 {CC "getDeclaredMethods", CC "(" HS_RESOLVED_KLASS ")[" RESOLVED_METHOD, FN_PTR(getDeclaredMethods)},
2785 {CC "readFieldValue", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_KLASS "JZLjdk/vm/ci/meta/JavaKind;)" JAVACONSTANT, FN_PTR(readFieldValue)},
2786 {CC "readFieldValue", CC "(" OBJECTCONSTANT HS_RESOLVED_KLASS "JZLjdk/vm/ci/meta/JavaKind;)" JAVACONSTANT, FN_PTR(readFieldValue)},
2787 {CC "isInstance", CC "(" HS_RESOLVED_KLASS OBJECTCONSTANT ")Z", FN_PTR(isInstance)},
2788 {CC "isAssignableFrom", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_KLASS ")Z", FN_PTR(isAssignableFrom)},
2789 {CC "isTrustedForIntrinsics", CC "(" HS_RESOLVED_KLASS ")Z", FN_PTR(isTrustedForIntrinsics)},
2790 {CC "asJavaType", CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE, FN_PTR(asJavaType)},
2791 {CC "asString", CC "(" OBJECTCONSTANT ")" STRING, FN_PTR(asString)},
2792 {CC "equals", CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z", FN_PTR(equals)},
2793 {CC "getJavaMirror", CC "(" HS_RESOLVED_TYPE ")" OBJECTCONSTANT, FN_PTR(getJavaMirror)},
2794 {CC "getArrayLength", CC "(" OBJECTCONSTANT ")I", FN_PTR(getArrayLength)},
2795 {CC "readArrayElement", CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;", FN_PTR(readArrayElement)},
2796 {CC "arrayBaseOffset", CC "(Ljdk/vm/ci/meta/JavaKind;)I", FN_PTR(arrayBaseOffset)},
2797 {CC "arrayIndexScale", CC "(Ljdk/vm/ci/meta/JavaKind;)I", FN_PTR(arrayIndexScale)},
2798 {CC "deleteGlobalHandle", CC "(J)V", FN_PTR(deleteGlobalHandle)},
2799 {CC "registerNativeMethods", CC "(" CLASS ")[J", FN_PTR(registerNativeMethods)},
2800 {CC "isCurrentThreadAttached", CC "()Z", FN_PTR(isCurrentThreadAttached)},
2801 {CC "getCurrentJavaThread", CC "()J", FN_PTR(getCurrentJavaThread)},
2802 {CC "attachCurrentThread", CC "([BZ)Z", FN_PTR(attachCurrentThread)},
2803 {CC "detachCurrentThread", CC "()V", FN_PTR(detachCurrentThread)},
2804 {CC "translate", CC "(" OBJECT ")J", FN_PTR(translate)},
2805 {CC "unhand", CC "(J)" OBJECT, FN_PTR(unhand)},
2806 {CC "updateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(updateHotSpotNmethod)},
2807 {CC "getCode", CC "(" HS_INSTALLED_CODE ")[B", FN_PTR(getCode)},
2808 {CC "asReflectionExecutable", CC "(" HS_RESOLVED_METHOD ")" REFLECTION_EXECUTABLE, FN_PTR(asReflectionExecutable)},
2809 {CC "asReflectionField", CC "(" HS_RESOLVED_KLASS "I)" REFLECTION_FIELD, FN_PTR(asReflectionField)},
2810 {CC "getFailedSpeculations", CC "(J[[B)[[B", FN_PTR(getFailedSpeculations)},
2811 {CC "getFailedSpeculationsAddress", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getFailedSpeculationsAddress)},
2812 {CC "releaseFailedSpeculations", CC "(J)V", FN_PTR(releaseFailedSpeculations)},
2813 {CC "addFailedSpeculation", CC "(J[B)Z", FN_PTR(addFailedSpeculation)},
2814 {CC "callSystemExit", CC "(I)V", FN_PTR(callSystemExit)},
2815 {CC "ticksNow", CC "()J", FN_PTR(ticksNow)},
2816 {CC "getThreadLocalObject", CC "(I)" OBJECT, FN_PTR(getThreadLocalObject)},
2817 {CC "setThreadLocalObject", CC "(I" OBJECT ")V", FN_PTR(setThreadLocalObject)},
2818 {CC "getThreadLocalLong", CC "(I)J", FN_PTR(getThreadLocalLong)},
2819 {CC "setThreadLocalLong", CC "(IJ)V", FN_PTR(setThreadLocalLong)},
2820 {CC "registerCompilerPhase", CC "(" STRING ")I", FN_PTR(registerCompilerPhase)},
2821 {CC "notifyCompilerPhaseEvent", CC "(JIII)V", FN_PTR(notifyCompilerPhaseEvent)},
2822 {CC "notifyCompilerInliningEvent", CC "(I" HS_RESOLVED_METHOD HS_RESOLVED_METHOD "ZLjava/lang/String;I)V", FN_PTR(notifyCompilerInliningEvent)},
2823 };
2824
2825 int CompilerToVM::methods_count() {
2826 return sizeof(methods) / sizeof(JNINativeMethod);
2827 }