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