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 C2V_END
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_NULL(jobjectArray, resolveBootstrapMethod, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
629 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
630 constantTag tag = cp->tag_at(index);
631 bool is_indy = tag.is_invoke_dynamic();
632 bool is_condy = tag.is_dynamic_constant();
633 if (!(is_condy || is_indy)) {
634 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value()));
635 }
636 // Resolve the bootstrap specifier, its name, type, and static arguments
637 BootstrapInfo bootstrap_specifier(cp, index);
638 Handle bsm = bootstrap_specifier.resolve_bsm(CHECK_NULL);
639
640 // call java.lang.invoke.MethodHandle::asFixedArity() -> MethodHandle
641 // to get a DirectMethodHandle from which we can then extract a Method*
642 JavaValue result(T_OBJECT);
643 JavaCalls::call_virtual(&result,
644 bsm,
645 vmClasses::MethodHandle_klass(),
646 vmSymbols::asFixedArity_name(),
647 vmSymbols::asFixedArity_signature(),
648 CHECK_NULL);
649 bsm = Handle(THREAD, result.get_oop());
650
651 // Check assumption about getting a DirectMethodHandle
652 if (!java_lang_invoke_DirectMethodHandle::is_instance(bsm())) {
653 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Unexpected MethodHandle subclass: %s", bsm->klass()->external_name()));
654 }
655 // Create return array describing the bootstrap method invocation (BSMI)
656 JVMCIObjectArray bsmi = JVMCIENV->new_Object_array(4, JVMCI_CHECK_NULL);
657
658 // Extract Method* and wrap it in a ResolvedJavaMethod
659 Handle member = Handle(THREAD, java_lang_invoke_DirectMethodHandle::member(bsm()));
660 JVMCIObject bsmi_method = JVMCIENV->get_jvmci_method(methodHandle(THREAD, java_lang_invoke_MemberName::vmtarget(member())), JVMCI_CHECK_NULL);
661 JVMCIENV->put_object_at(bsmi, 0, bsmi_method);
662
663 JVMCIObject bsmi_name = JVMCIENV->create_string(bootstrap_specifier.name(), JVMCI_CHECK_NULL);
664 JVMCIENV->put_object_at(bsmi, 1, bsmi_name);
665
666 Handle type_arg = bootstrap_specifier.type_arg();
667 JVMCIObject bsmi_type = JVMCIENV->get_object_constant(type_arg());
668 JVMCIENV->put_object_at(bsmi, 2, bsmi_type);
669
670 Handle arg_values = bootstrap_specifier.arg_values();
671 if (arg_values.not_null()) {
672 if (!arg_values->is_array()) {
673 JVMCIENV->put_object_at(bsmi, 3, JVMCIENV->get_object_constant(arg_values()));
674 } else if (arg_values->is_objArray()) {
675 objArrayHandle args_array = objArrayHandle(THREAD, (objArrayOop) arg_values());
676 int len = args_array->length();
677 JVMCIObjectArray arguments = JVMCIENV->new_JavaConstant_array(len, JVMCI_CHECK_NULL);
678 JVMCIENV->put_object_at(bsmi, 3, arguments);
679 for (int i = 0; i < len; i++) {
680 oop x = args_array->obj_at(i);
681 if (x != nullptr) {
682 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_object_constant(x));
683 } else {
684 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_JavaConstant_NULL_POINTER());
685 }
686 }
687 } else if (arg_values->is_typeArray()) {
688 typeArrayHandle bsci = typeArrayHandle(THREAD, (typeArrayOop) arg_values());
689 JVMCIPrimitiveArray arguments = JVMCIENV->new_intArray(bsci->length(), JVMCI_CHECK_NULL);
690 JVMCIENV->put_object_at(bsmi, 3, arguments);
691 for (int i = 0; i < bsci->length(); i++) {
692 JVMCIENV->put_int_at(arguments, i, bsci->int_at(i));
693 }
694 }
695 }
696 return JVMCIENV->get_jobjectArray(bsmi);
697 C2V_END
698
699 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
700 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
701 return cp->name_and_type_ref_index_at(index);
702 C2V_END
703
704 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which))
705 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
706 JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which), JVMCI_CHECK_NULL);
707 return JVMCIENV->get_jobject(sym);
708 C2V_END
709
710 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which))
711 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
712 JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which), JVMCI_CHECK_NULL);
713 return JVMCIENV->get_jobject(sym);
714 C2V_END
715
716 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
717 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
718 return cp->klass_ref_index_at(index);
719 C2V_END
720
721 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
722 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
723 Klass* klass = cp->klass_at(index, CHECK_NULL);
724 JVMCIKlassHandle resolved_klass(THREAD, klass);
725 if (resolved_klass->is_instance_klass()) {
726 InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL);
727 if (!InstanceKlass::cast(resolved_klass())->is_linked()) {
728 // link_class() should not return here if there is an issue.
729 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name()));
730 }
731 }
732 JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
733 return JVMCIENV->get_jobject(klassObject);
734 C2V_END
735
736 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
737 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
738 Klass* loading_klass = cp->pool_holder();
739 bool is_accessible = false;
740 JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass));
741 Symbol* symbol = NULL;
742 if (klass.is_null()) {
743 constantTag tag = cp->tag_at(index);
744 if (tag.is_klass()) {
745 // The klass has been inserted into the constant pool
746 // very recently.
747 klass = cp->resolved_klass_at(index);
748 } else if (tag.is_symbol()) {
749 symbol = cp->symbol_at(index);
750 } else {
751 assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag");
752 symbol = cp->klass_name_at(index);
753 }
754 }
755 JVMCIObject result;
756 if (!klass.is_null()) {
757 result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
758 } else {
759 result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL);
760 }
761 return JVMCIENV->get_jobject(result);
762 C2V_END
763
764 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
765 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
766 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
767 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop));
768 C2V_END
769
770 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
771 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
772 InstanceKlass* pool_holder = cp->pool_holder();
773 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
774 methodHandle method(THREAD, JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder));
775 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
776 return JVMCIENV->get_jobject(result);
777 C2V_END
778
779 C2V_VMENTRY_0(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
780 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
781 return cp->remap_instruction_operand_from_cache(index);
782 C2V_END
783
784 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jobject jvmci_method, jbyte opcode, jintArray info_handle))
785 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
786 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
787 fieldDescriptor fd;
788 methodHandle mh(THREAD, (jvmci_method != NULL) ? JVMCIENV->asMethod(jvmci_method) : NULL);
789 LinkInfo link_info(cp, index, mh, CHECK_NULL);
790 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_NULL);
791 JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle);
792 if (info.is_null() || JVMCIENV->get_length(info) != 3) {
793 JVMCI_ERROR_NULL("info must not be null and have a length of 3");
794 }
795 JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int());
796 JVMCIENV->put_int_at(info, 1, fd.offset());
797 JVMCIENV->put_int_at(info, 2, fd.index());
798 JVMCIKlassHandle handle(THREAD, fd.field_holder());
799 JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
800 return JVMCIENV->get_jobject(field_holder);
801 C2V_END
802
803 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method))
804 Klass* klass = JVMCIENV->asKlass(jvmci_type);
805 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
806 InstanceKlass* holder = method->method_holder();
807 if (klass->is_interface()) {
808 JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name()));
809 }
810 if (!holder->is_interface()) {
811 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()));
812 }
813 if (!klass->is_instance_klass()) {
814 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
815 }
816 if (!InstanceKlass::cast(klass)->is_linked()) {
817 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name()));
818 }
819 if (!klass->is_subtype_of(holder)) {
820 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s does not implement interface %s", klass->external_name(), holder->external_name()));
821 }
822 return LinkResolver::vtable_index_of_interface_method(klass, method);
823 C2V_END
824
825 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
826 Klass* recv_klass = JVMCIENV->asKlass(receiver_jvmci_type);
827 Klass* caller_klass = JVMCIENV->asKlass(caller_jvmci_type);
828 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
829
830 Klass* resolved = method->method_holder();
831 Symbol* h_name = method->name();
832 Symbol* h_signature = method->signature();
833
834 if (MethodHandles::is_signature_polymorphic_method(method())) {
835 // Signature polymorphic methods are already resolved, JVMCI just returns NULL in this case.
836 return NULL;
837 }
838
839 if (method->name() == vmSymbols::clone_name() &&
840 resolved == vmClasses::Object_klass() &&
841 recv_klass->is_array_klass()) {
842 // Resolution of the clone method on arrays always returns Object.clone even though that method
843 // has protected access. There's some trickery in the access checking to make this all work out
844 // so it's necessary to pass in the array class as the resolved class to properly trigger this.
845 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See
846 // LinkResolver::check_method_accessability for the matching logic.
847 resolved = recv_klass;
848 }
849
850 LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
851 Method* m = NULL;
852 // Only do exact lookup if receiver klass has been linked. Otherwise,
853 // the vtable has not been setup, and the LinkResolver will fail.
854 if (recv_klass->is_array_klass() ||
855 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
856 if (resolved->is_interface()) {
857 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
858 } else {
859 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
860 }
861 }
862
863 if (m == NULL) {
864 // Return NULL if there was a problem with lookup (uninitialized class, etc.)
865 return NULL;
866 }
867
868 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, m), JVMCI_CHECK_NULL);
869 return JVMCIENV->get_jobject(result);
870 C2V_END
871
872 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, jobject jvmci_type))
873 Klass* klass = JVMCIENV->asKlass(jvmci_type);
874 assert(klass != NULL, "method must not be called for primitive types");
875 if (!klass->is_instance_klass()) {
876 return false;
877 }
878 InstanceKlass* iklass = InstanceKlass::cast(klass);
879 return Dependencies::find_finalizable_subclass(iklass) != NULL;
880 C2V_END
881
882 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, jobject jvmci_type))
883 Klass* klass = JVMCIENV->asKlass(jvmci_type);
884 if (!klass->is_instance_klass()) {
885 return NULL;
886 }
887 InstanceKlass* iklass = InstanceKlass::cast(klass);
888 methodHandle clinit(THREAD, iklass->class_initializer());
889 JVMCIObject result = JVMCIENV->get_jvmci_method(clinit, JVMCI_CHECK_NULL);
890 return JVMCIENV->get_jobject(result);
891 C2V_END
892
893 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr))
894 address target_addr = (address) addr;
895 if (target_addr != 0x0) {
896 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
897 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
898 return MAX2(ABS(off_low), ABS(off_high));
899 }
900 return -1;
901 C2V_END
902
903 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject, jobject jvmci_method))
904 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
905 method->set_not_c1_compilable();
906 method->set_not_c2_compilable();
907 method->set_dont_inline(true);
908 C2V_END
909
910 C2V_VMENTRY_0(jint, installCode, (JNIEnv *env, jobject, jobject target, jobject compiled_code,
911 jobject installed_code, jlong failed_speculations_address, jbyteArray speculations_obj))
912 HandleMark hm(THREAD);
913 JNIHandleMark jni_hm(thread);
914
915 JVMCIObject target_handle = JVMCIENV->wrap(target);
916 JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
917 CodeBlob* cb = NULL;
918 JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code);
919 JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj);
920
921 int speculations_len = JVMCIENV->get_length(speculations_handle);
922 char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len);
923 JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len);
924
925 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR);
926
927 TraceTime install_time("installCode", JVMCICompiler::codeInstallTimer(!thread->is_Compiler_thread()));
928
929 nmethodLocker nmethod_handle;
930 CodeInstaller installer(JVMCIENV);
931 JVMCI::CodeInstallResult result = installer.install(compiler,
932 target_handle,
933 compiled_code_handle,
934 cb,
935 nmethod_handle,
936 installed_code_handle,
937 (FailedSpeculation**)(address) failed_speculations_address,
938 speculations,
939 speculations_len,
940 JVMCI_CHECK_0);
941
942 if (PrintCodeCacheOnCompilation) {
943 stringStream s;
944 // Dump code cache into a buffer before locking the tty,
945 {
946 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
947 CodeCache::print_summary(&s, false);
948 }
949 ttyLocker ttyl;
950 tty->print_raw_cr(s.as_string());
951 }
952
953 if (result != JVMCI::ok) {
954 assert(cb == NULL, "should be");
955 } else {
956 if (installed_code_handle.is_non_null()) {
957 if (cb->is_nmethod()) {
958 assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type");
959 // Clear the link to an old nmethod first
960 JVMCIObject nmethod_mirror = installed_code_handle;
961 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, JVMCI_CHECK_0);
962 } else {
963 assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type");
964 }
965 // Initialize the link to the new code blob
966 JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0);
967 }
968 }
969 return result;
970 C2V_END
971
972 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject))
973 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK);
974 CompilerStatistics* stats = compiler->stats();
975 stats->_standard.reset();
976 stats->_osr.reset();
977 C2V_END
978
979 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode))
980 HandleMark hm(THREAD);
981
982 if (installedCode == NULL) {
983 JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null");
984 }
985
986 JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode);
987 nmethodLocker locker;
988 CodeBlob* cb = JVMCIENV->get_code_blob(installedCodeObject, locker);
989 if (cb == NULL) {
990 return NULL;
991 }
992
993 // We don't want the stringStream buffer to resize during disassembly as it
994 // uses scoped resource memory. If a nested function called during disassembly uses
995 // a ResourceMark and the buffer expands within the scope of the mark,
996 // the buffer becomes garbage when that scope is exited. Experience shows that
997 // the disassembled code is typically about 10x the code size so a fixed buffer
998 // sized to 20x code size plus a fixed amount for header info should be sufficient.
999 int bufferSize = cb->code_size() * 20 + 1024;
1000 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
1001 stringStream st(buffer, bufferSize);
1002 if (cb->is_nmethod()) {
1003 nmethod* nm = (nmethod*) cb;
1004 if (!nm->is_alive()) {
1005 return NULL;
1006 }
1007 }
1008 Disassembler::decode(cb, &st);
1009 if (st.size() <= 0) {
1010 return NULL;
1011 }
1012
1013 JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL);
1014 return JVMCIENV->get_jobject(result);
1015 C2V_END
1016
1017 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, jobject jvmci_method, int bci))
1018 HandleMark hm(THREAD);
1019
1020 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
1021 JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL);
1022 return JVMCIENV->get_jobject(element);
1023 C2V_END
1024
1025 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod))
1026 // The incoming arguments array would have to contain JavaConstants instead of regular objects
1027 // and the return value would have to be wrapped as a JavaConstant.
1028 requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL);
1029
1030 HandleMark hm(THREAD);
1031
1032 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1033 nmethodLocker locker;
1034 nmethod* nm = JVMCIENV->get_nmethod(nmethod_mirror, locker);
1035 if (nm == NULL || !nm->is_in_use()) {
1036 JVMCI_THROW_NULL(InvalidInstalledCodeException);
1037 }
1038 methodHandle mh(THREAD, nm->method());
1039 Symbol* signature = mh->signature();
1040 JavaCallArguments jca(mh->size_of_parameters());
1041
1042 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
1043 JavaValue result(jap.return_type());
1044 jca.set_alternative_target(Handle(THREAD, JNIHandles::resolve(nmethod_mirror.as_jobject())));
1045 JavaCalls::call(&result, mh, &jca, CHECK_NULL);
1046
1047 if (jap.return_type() == T_VOID) {
1048 return NULL;
1049 } else if (is_reference_type(jap.return_type())) {
1050 return JNIHandles::make_local(THREAD, result.get_oop());
1051 } else {
1052 jvalue *value = (jvalue *) result.get_value_addr();
1053 // Narrow the value down if required (Important on big endian machines)
1054 switch (jap.return_type()) {
1055 case T_BOOLEAN:
1056 value->z = (jboolean) value->i;
1057 break;
1058 case T_BYTE:
1059 value->b = (jbyte) value->i;
1060 break;
1061 case T_CHAR:
1062 value->c = (jchar) value->i;
1063 break;
1064 case T_SHORT:
1065 value->s = (jshort) value->i;
1066 break;
1067 default:
1068 break;
1069 }
1070 JVMCIObject o = JVMCIENV->create_box(jap.return_type(), value, JVMCI_CHECK_NULL);
1071 return JVMCIENV->get_jobject(o);
1072 }
1073 C2V_END
1074
1075 C2V_VMENTRY_NULL(jlongArray, getLineNumberTable, (JNIEnv* env, jobject, jobject jvmci_method))
1076 Method* method = JVMCIENV->asMethod(jvmci_method);
1077 if (!method->has_linenumber_table()) {
1078 return NULL;
1079 }
1080 u2 num_entries = 0;
1081 CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
1082 while (streamForSize.read_pair()) {
1083 num_entries++;
1084 }
1085
1086 CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
1087 JVMCIPrimitiveArray result = JVMCIENV->new_longArray(2 * num_entries, JVMCI_CHECK_NULL);
1088
1089 int i = 0;
1090 jlong value;
1091 while (stream.read_pair()) {
1092 value = ((jlong) stream.bci());
1093 JVMCIENV->put_long_at(result, i, value);
1094 value = ((jlong) stream.line());
1095 JVMCIENV->put_long_at(result, i + 1, value);
1096 i += 2;
1097 }
1098
1099 return (jlongArray) JVMCIENV->get_jobject(result);
1100 C2V_END
1101
1102 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, jobject jvmci_method))
1103 Method* method = JVMCIENV->asMethod(jvmci_method);
1104 if (!method->has_localvariable_table()) {
1105 return 0;
1106 }
1107 return (jlong) (address) method->localvariable_table_start();
1108 C2V_END
1109
1110 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, jobject jvmci_method))
1111 Method* method = JVMCIENV->asMethod(jvmci_method);
1112 return method->localvariable_table_length();
1113 C2V_END
1114
1115 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, jobject jvmci_method))
1116 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
1117 MethodCounters* mcs = method->method_counters();
1118 if (mcs != NULL) {
1119 mcs->clear_counters();
1120 }
1121 NOT_PRODUCT(method->set_compiled_invocation_count(0));
1122
1123 CompiledMethod* code = method->code();
1124 if (code != NULL) {
1125 code->make_not_entrant();
1126 }
1127
1128 MethodData* method_data = method->method_data();
1129 if (method_data == NULL) {
1130 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
1131 method_data = MethodData::allocate(loader_data, method, CHECK);
1132 method->set_method_data(method_data);
1133 } else {
1134 method_data->initialize();
1135 }
1136 C2V_END
1137
1138
1139 C2V_VMENTRY(void, invalidateHotSpotNmethod, (JNIEnv* env, jobject, jobject hs_nmethod))
1140 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1141 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, JVMCI_CHECK);
1142 C2V_END
1143
1144 C2V_VMENTRY_NULL(jlongArray, collectCounters, (JNIEnv* env, jobject))
1145 // Returns a zero length array if counters aren't enabled
1146 JVMCIPrimitiveArray array = JVMCIENV->new_longArray(JVMCICounterSize, JVMCI_CHECK_NULL);
1147 if (JVMCICounterSize > 0) {
1148 jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize);
1149 JavaThread::collect_counters(temp_array, JVMCICounterSize);
1150 JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize);
1151 }
1152 return (jlongArray) JVMCIENV->get_jobject(array);
1153 C2V_END
1154
1155 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject))
1156 return (jint) JVMCICounterSize;
1157 C2V_END
1158
1159 C2V_VMENTRY_0(jboolean, setCountersSize, (JNIEnv* env, jobject, jint new_size))
1160 return JavaThread::resize_all_jvmci_counters(new_size);
1161 C2V_END
1162
1163 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci))
1164 HandleMark hm(THREAD);
1165 if (jvmci_method == NULL) {
1166 JVMCI_THROW_0(NullPointerException);
1167 }
1168 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
1169 if (entry_bci >= method->code_size() || entry_bci < -1) {
1170 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci));
1171 }
1172 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
1173 C2V_END
1174
1175
1176 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong metaspace_method_data))
1177 MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data);
1178 return mdo != NULL && mdo->is_mature();
1179 C2V_END
1180
1181 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci, int comp_level))
1182 Method* method = JVMCIENV->asMethod(jvmci_method);
1183 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL;
1184 C2V_END
1185
1186 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol))
1187 JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL);
1188 return JVMCIENV->get_jobject(sym);
1189 C2V_END
1190
1191 /*
1192 * Used by matches() to convert a ResolvedJavaMethod[] to an array of Method*.
1193 */
1194 GrowableArray<Method*>* init_resolved_methods(jobjectArray methods, JVMCIEnv* JVMCIENV) {
1195 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1196 GrowableArray<Method*>* resolved_methods = new GrowableArray<Method*>(methods_oop->length());
1197 for (int i = 0; i < methods_oop->length(); i++) {
1198 oop resolved = methods_oop->obj_at(i);
1199 Method* resolved_method = NULL;
1200 if (resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) {
1201 resolved_method = HotSpotJVMCI::asMethod(JVMCIENV, resolved);
1202 }
1203 resolved_methods->append(resolved_method);
1204 }
1205 return resolved_methods;
1206 }
1207
1208 /*
1209 * Used by c2v_iterateFrames to check if `method` matches one of the ResolvedJavaMethods in the `methods` array.
1210 * The ResolvedJavaMethod[] array is converted to a Method* array that is then cached in the resolved_methods_ref in/out parameter.
1211 * In case of a match, the matching ResolvedJavaMethod is returned in matched_jvmci_method_ref.
1212 */
1213 bool matches(jobjectArray methods, Method* method, GrowableArray<Method*>** resolved_methods_ref, Handle* matched_jvmci_method_ref, Thread* THREAD, JVMCIEnv* JVMCIENV) {
1214 GrowableArray<Method*>* resolved_methods = *resolved_methods_ref;
1215 if (resolved_methods == NULL) {
1216 resolved_methods = init_resolved_methods(methods, JVMCIENV);
1217 *resolved_methods_ref = resolved_methods;
1218 }
1219 assert(method != NULL, "method should not be NULL");
1220 assert(resolved_methods->length() == ((objArrayOop) JNIHandles::resolve(methods))->length(), "arrays must have the same length");
1221 for (int i = 0; i < resolved_methods->length(); i++) {
1222 Method* m = resolved_methods->at(i);
1223 if (m == method) {
1224 *matched_jvmci_method_ref = Handle(THREAD, ((objArrayOop) JNIHandles::resolve(methods))->obj_at(i));
1225 return true;
1226 }
1227 }
1228 return false;
1229 }
1230
1231 /*
1232 * Resolves an interface call to a concrete method handle.
1233 */
1234 methodHandle resolve_interface_call(Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
1235 CallInfo callinfo;
1236 Handle receiver = args->receiver();
1237 Klass* recvrKlass = receiver.is_null() ? (Klass*)NULL : receiver->klass();
1238 LinkInfo link_info(spec_klass, name, signature);
1239 LinkResolver::resolve_interface_call(
1240 callinfo, receiver, recvrKlass, link_info, true, CHECK_(methodHandle()));
1241 methodHandle method(THREAD, callinfo.selected_method());
1242 assert(method.not_null(), "should have thrown exception");
1243 return method;
1244 }
1245
1246 /*
1247 * Used by c2v_iterateFrames to make a new vframeStream at the given compiled frame id (stack pointer) and vframe id.
1248 */
1249 void resync_vframestream_to_compiled_frame(vframeStream& vfst, intptr_t* stack_pointer, int vframe_id, JavaThread* thread, TRAPS) {
1250 vfst = vframeStream(thread);
1251 while (vfst.frame_id() != stack_pointer && !vfst.at_end()) {
1252 vfst.next();
1253 }
1254 if (vfst.frame_id() != stack_pointer) {
1255 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1256 }
1257 if (vfst.is_interpreted_frame()) {
1258 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1259 }
1260 while (vfst.vframe_id() != vframe_id) {
1261 if (vfst.at_end()) {
1262 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt")
1263 }
1264 vfst.next();
1265 assert(!vfst.is_interpreted_frame(), "Wrong frame type");
1266 }
1267 }
1268
1269 /*
1270 * Used by c2v_iterateFrames. Returns an array of any unallocated scope objects or NULL if none.
1271 */
1272 GrowableArray<ScopeValue*>* get_unallocated_objects_or_null(GrowableArray<ScopeValue*>* scope_objects) {
1273 GrowableArray<ScopeValue*>* unallocated = NULL;
1274 for (int i = 0; i < scope_objects->length(); i++) {
1275 ObjectValue* sv = (ObjectValue*) scope_objects->at(i);
1276 if (sv->value().is_null()) {
1277 if (unallocated == NULL) {
1278 unallocated = new GrowableArray<ScopeValue*>(scope_objects->length());
1279 }
1280 unallocated->append(sv);
1281 }
1282 }
1283 return unallocated;
1284 }
1285
1286 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
1287
1288 if (!thread->has_last_Java_frame()) {
1289 return NULL;
1290 }
1291 Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
1292
1293 requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL);
1294
1295 HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1296
1297 vframeStream vfst(thread);
1298 jobjectArray methods = initial_methods;
1299 methodHandle visitor_method;
1300 GrowableArray<Method*>* resolved_methods = NULL;
1301
1302 while (!vfst.at_end()) { // frame loop
1303 bool realloc_called = false;
1304 intptr_t* frame_id = vfst.frame_id();
1305
1306 // Previous compiledVFrame of this frame; use with at_scope() to reuse scope object pool.
1307 compiledVFrame* prev_cvf = NULL;
1308
1309 for (; !vfst.at_end() && vfst.frame_id() == frame_id; vfst.next()) { // vframe loop
1310 int frame_number = 0;
1311 Method *method = vfst.method();
1312 int bci = vfst.bci();
1313
1314 Handle matched_jvmci_method;
1315 if (methods == NULL || matches(methods, method, &resolved_methods, &matched_jvmci_method, THREAD, JVMCIENV)) {
1316 if (initialSkip > 0) {
1317 initialSkip--;
1318 continue;
1319 }
1320 javaVFrame* vf;
1321 if (prev_cvf != NULL && prev_cvf->frame_pointer()->id() == frame_id) {
1322 assert(prev_cvf->is_compiled_frame(), "expected compiled Java frame");
1323 vf = prev_cvf->at_scope(vfst.decode_offset(), vfst.vframe_id());
1324 } else {
1325 vf = vfst.asJavaVFrame();
1326 }
1327
1328 StackValueCollection* locals = NULL;
1329 typeArrayHandle localIsVirtual_h;
1330 if (vf->is_compiled_frame()) {
1331 // compiled method frame
1332 compiledVFrame* cvf = compiledVFrame::cast(vf);
1333
1334 ScopeDesc* scope = cvf->scope();
1335 // native wrappers do not have a scope
1336 if (scope != NULL && scope->objects() != NULL) {
1337 prev_cvf = cvf;
1338
1339 GrowableArray<ScopeValue*>* objects = NULL;
1340 if (!realloc_called) {
1341 objects = scope->objects();
1342 } else {
1343 // some object might already have been re-allocated, only reallocate the non-allocated ones
1344 objects = get_unallocated_objects_or_null(scope->objects());
1345 }
1346
1347 if (objects != NULL) {
1348 RegisterMap reg_map(vf->register_map());
1349 bool realloc_failures = Deoptimization::realloc_objects(thread, vf->frame_pointer(), ®_map, objects, CHECK_NULL);
1350 Deoptimization::reassign_fields(vf->frame_pointer(), ®_map, objects, realloc_failures, false);
1351 realloc_called = true;
1352 }
1353
1354 GrowableArray<ScopeValue*>* local_values = scope->locals();
1355 for (int i = 0; i < local_values->length(); i++) {
1356 ScopeValue* value = local_values->at(i);
1357 if (value->is_object()) {
1358 if (localIsVirtual_h.is_null()) {
1359 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1360 localIsVirtual_h = typeArrayHandle(THREAD, array_oop);
1361 }
1362 localIsVirtual_h->bool_at_put(i, true);
1363 }
1364 }
1365 }
1366
1367 locals = cvf->locals();
1368 frame_number = cvf->vframe_id();
1369 } else {
1370 // interpreted method frame
1371 interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1372
1373 locals = ivf->locals();
1374 }
1375 assert(bci == vf->bci(), "wrong bci");
1376 assert(method == vf->method(), "wrong method");
1377
1378 Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1379 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), bci);
1380 if (matched_jvmci_method.is_null()) {
1381 methodHandle mh(THREAD, method);
1382 JVMCIObject jvmci_method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1383 matched_jvmci_method = Handle(THREAD, JNIHandles::resolve(jvmci_method.as_jobject()));
1384 }
1385 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), matched_jvmci_method());
1386 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), localIsVirtual_h());
1387
1388 HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM));
1389 HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) frame_id);
1390 HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number);
1391
1392 // initialize the locals array
1393 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1394 objArrayHandle array(THREAD, array_oop);
1395 for (int i = 0; i < locals->size(); i++) {
1396 StackValue* var = locals->at(i);
1397 if (var->type() == T_OBJECT) {
1398 array->obj_at_put(i, locals->at(i)->get_obj()());
1399 }
1400 }
1401 HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array());
1402 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE);
1403
1404 JavaValue result(T_OBJECT);
1405 JavaCallArguments args(visitor);
1406 if (visitor_method.is_null()) {
1407 visitor_method = resolve_interface_call(HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL);
1408 }
1409
1410 args.push_oop(frame_reference);
1411 JavaCalls::call(&result, visitor_method, &args, CHECK_NULL);
1412 if (result.get_oop() != NULL) {
1413 return JNIHandles::make_local(thread, result.get_oop());
1414 }
1415 if (methods == initial_methods) {
1416 methods = match_methods;
1417 if (resolved_methods != NULL && JNIHandles::resolve(match_methods) != JNIHandles::resolve(initial_methods)) {
1418 resolved_methods = NULL;
1419 }
1420 }
1421 assert(initialSkip == 0, "There should be no match before initialSkip == 0");
1422 if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) {
1423 // the frame has been deoptimized, we need to re-synchronize the frame and vframe
1424 prev_cvf = NULL;
1425 intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference());
1426 resync_vframestream_to_compiled_frame(vfst, stack_pointer, frame_number, thread, CHECK_NULL);
1427 }
1428 }
1429 } // end of vframe loop
1430 } // end of frame loop
1431
1432 // the end was reached without finding a matching method
1433 return NULL;
1434 C2V_END
1435
1436 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1437 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
1438 CallInfo callInfo;
1439 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK);
1440 ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index);
1441 cp_cache_entry->set_dynamic_call(cp, callInfo);
1442 C2V_END
1443
1444 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1445 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
1446 Klass* holder = cp->klass_ref_at(index, CHECK);
1447 Symbol* name = cp->name_ref_at(index);
1448 if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1449 CallInfo callInfo;
1450 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1451 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1452 cp_cache_entry->set_method_handle(cp, callInfo);
1453 }
1454 C2V_END
1455
1456 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1457 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
1458 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1459 if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) {
1460 // MethodHandle.invoke* --> LambdaForm?
1461 ResourceMark rm;
1462
1463 LinkInfo link_info(cp, index, CATCH);
1464
1465 Klass* resolved_klass = link_info.resolved_klass();
1466
1467 Symbol* name_sym = cp->name_ref_at(index);
1468
1469 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1470 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1471
1472 methodHandle adapter_method(THREAD, cp_cache_entry->f1_as_method());
1473
1474 methodHandle resolved_method(adapter_method);
1475
1476 // Can we treat it as a regular invokevirtual?
1477 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1478 vmassert(!resolved_method->is_static(),"!");
1479 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1480 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1481 vmassert(cp_cache_entry->appendix_if_resolved(cp) == NULL, "!");
1482
1483 methodHandle m(THREAD, LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1484 vmassert(m == resolved_method, "!!");
1485 return -1;
1486 }
1487
1488 return Bytecodes::_invokevirtual;
1489 }
1490 if (cp_cache_entry->is_resolved(Bytecodes::_invokedynamic)) {
1491 return Bytecodes::_invokedynamic;
1492 }
1493 return -1;
1494 C2V_END
1495
1496
1497 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject))
1498 JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL);
1499 JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL);
1500 JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL);
1501 JVMCIENV->put_object_at(holders, 0, mh);
1502 JVMCIENV->put_object_at(holders, 1, vh);
1503 return JVMCIENV->get_jobject(holders);
1504 C2V_END
1505
1506 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject))
1507 //see compute_recording_non_safepoints in debugInfroRec.cpp
1508 if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1509 return true;
1510 }
1511 return DebugNonSafepoints;
1512 C2V_END
1513
1514 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1515 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate))
1516 JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame);
1517 if (hs_frame.is_null()) {
1518 JVMCI_THROW_MSG(NullPointerException, "stack frame is null");
1519 }
1520
1521 requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK);
1522
1523 JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK);
1524
1525 // look for the given stack frame
1526 StackFrameStream fst(thread, false /* update */, true /* process_frames */);
1527 intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame);
1528 while (fst.current()->id() != stack_pointer && !fst.is_done()) {
1529 fst.next();
1530 }
1531 if (fst.current()->id() != stack_pointer) {
1532 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found");
1533 }
1534
1535 if (invalidate) {
1536 if (!fst.current()->is_compiled_frame()) {
1537 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1538 }
1539 assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
1540 ((nmethod*) fst.current()->cb())->make_not_entrant();
1541 }
1542 Deoptimization::deoptimize(thread, *fst.current(), Deoptimization::Reason_none);
1543 // look for the frame again as it has been updated by deopt (pc, deopt state...)
1544 StackFrameStream fstAfterDeopt(thread, true /* update */, true /* process_frames */);
1545 while (fstAfterDeopt.current()->id() != stack_pointer && !fstAfterDeopt.is_done()) {
1546 fstAfterDeopt.next();
1547 }
1548 if (fstAfterDeopt.current()->id() != stack_pointer) {
1549 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found after deopt");
1550 }
1551
1552 vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1553 if (!vf->is_compiled_frame()) {
1554 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1555 }
1556
1557 GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1558 while (true) {
1559 assert(vf->is_compiled_frame(), "Wrong frame type");
1560 virtualFrames->push(compiledVFrame::cast(vf));
1561 if (vf->is_top()) {
1562 break;
1563 }
1564 vf = vf->sender();
1565 }
1566
1567 int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame);
1568 if (last_frame_number >= virtualFrames->length()) {
1569 JVMCI_THROW_MSG(IllegalStateException, "invalid frame number");
1570 }
1571
1572 // Reallocate the non-escaping objects and restore their fields.
1573 assert (virtualFrames->at(last_frame_number)->scope() != NULL,"invalid scope");
1574 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1575
1576 if (objects == NULL) {
1577 // no objects to materialize
1578 return;
1579 }
1580
1581 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK);
1582 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
1583
1584 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1585 compiledVFrame* cvf = virtualFrames->at(frame_index);
1586
1587 GrowableArray<ScopeValue*>* scopeLocals = cvf->scope()->locals();
1588 StackValueCollection* locals = cvf->locals();
1589 if (locals != NULL) {
1590 for (int i2 = 0; i2 < locals->size(); i2++) {
1591 StackValue* var = locals->at(i2);
1592 if (var->type() == T_OBJECT && scopeLocals->at(i2)->is_object()) {
1593 jvalue val;
1594 val.l = cast_from_oop<jobject>(locals->at(i2)->get_obj()());
1595 cvf->update_local(T_OBJECT, i2, val);
1596 }
1597 }
1598 }
1599
1600 GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1601 StackValueCollection* expressions = cvf->expressions();
1602 if (expressions != NULL) {
1603 for (int i2 = 0; i2 < expressions->size(); i2++) {
1604 StackValue* var = expressions->at(i2);
1605 if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) {
1606 jvalue val;
1607 val.l = cast_from_oop<jobject>(expressions->at(i2)->get_obj()());
1608 cvf->update_stack(T_OBJECT, i2, val);
1609 }
1610 }
1611 }
1612
1613 GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors();
1614 GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
1615 if (monitors != NULL) {
1616 for (int i2 = 0; i2 < monitors->length(); i2++) {
1617 cvf->update_monitor(i2, monitors->at(i2));
1618 }
1619 }
1620 }
1621
1622 // all locals are materialized by now
1623 JVMCIENV->set_HotSpotStackFrameReference_localIsVirtual(hs_frame, NULL);
1624 // update the locals array
1625 JVMCIObjectArray array = JVMCIENV->get_HotSpotStackFrameReference_locals(hs_frame);
1626 StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1627 for (int i = 0; i < locals->size(); i++) {
1628 StackValue* var = locals->at(i);
1629 if (var->type() == T_OBJECT) {
1630 JVMCIENV->put_object_at(array, i, HotSpotJVMCI::wrap(locals->at(i)->get_obj()()));
1631 }
1632 }
1633 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, hs_frame, JNI_TRUE);
1634 C2V_END
1635
1636 // Use of tty does not require the current thread to be attached to the VM
1637 // so no need for a full C2V_VMENTRY transition.
1638 C2V_VMENTRY_PREFIX(void, writeDebugOutput, (JNIEnv* env, jobject, jlong buffer, jint length, bool flush))
1639 if (length <= 8) {
1640 tty->write((char*) &buffer, length);
1641 } else {
1642 tty->write((char*) buffer, length);
1643 }
1644 if (flush) {
1645 tty->flush();
1646 }
1647 C2V_END
1648
1649 // Use of tty does not require the current thread to be attached to the VM
1650 // so no need for a full C2V_VMENTRY transition.
1651 C2V_VMENTRY_PREFIX(void, flushDebugOutput, (JNIEnv* env, jobject))
1652 tty->flush();
1653 C2V_END
1654
1655 C2V_VMENTRY_0(jint, methodDataProfileDataSize, (JNIEnv* env, jobject, jlong metaspace_method_data, jint position))
1656 MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data);
1657 ProfileData* profile_data = mdo->data_at(position);
1658 if (mdo->is_valid(profile_data)) {
1659 return profile_data->size_in_bytes();
1660 }
1661 DataLayout* data = mdo->extra_data_base();
1662 DataLayout* end = mdo->extra_data_limit();
1663 for (;; data = mdo->next_extra(data)) {
1664 assert(data < end, "moved past end of extra data");
1665 profile_data = data->data_in();
1666 if (mdo->dp_to_di(profile_data->dp()) == position) {
1667 return profile_data->size_in_bytes();
1668 }
1669 }
1670 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Invalid profile data position %d", position));
1671 C2V_END
1672
1673 C2V_VMENTRY_NULL(jobject, getInterfaces, (JNIEnv* env, jobject, jobject jvmci_type))
1674 if (jvmci_type == NULL) {
1675 JVMCI_THROW_0(NullPointerException);
1676 }
1677
1678 Klass* klass = JVMCIENV->asKlass(jvmci_type);
1679 if (klass == NULL) {
1680 JVMCI_THROW_0(NullPointerException);
1681 }
1682 if (!klass->is_instance_klass()) {
1683 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
1684 }
1685 InstanceKlass* iklass = InstanceKlass::cast(klass);
1686
1687 // Regular instance klass, fill in all local interfaces
1688 int size = iklass->local_interfaces()->length();
1689 JVMCIObjectArray interfaces = JVMCIENV->new_HotSpotResolvedObjectTypeImpl_array(size, JVMCI_CHECK_NULL);
1690 for (int index = 0; index < size; index++) {
1691 JVMCIKlassHandle klass(THREAD);
1692 Klass* k = iklass->local_interfaces()->at(index);
1693 klass = k;
1694 JVMCIObject type = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
1695 JVMCIENV->put_object_at(interfaces, index, type);
1696 }
1697 return JVMCIENV->get_jobject(interfaces);
1698 C2V_END
1699
1700 C2V_VMENTRY_NULL(jobject, getComponentType, (JNIEnv* env, jobject, jobject jvmci_type))
1701 if (jvmci_type == NULL) {
1702 JVMCI_THROW_0(NullPointerException);
1703 }
1704
1705 Klass* klass = JVMCIENV->asKlass(jvmci_type);
1706 oop mirror = klass->java_mirror();
1707 if (java_lang_Class::is_primitive(mirror) ||
1708 !java_lang_Class::as_Klass(mirror)->is_array_klass()) {
1709 return NULL;
1710 }
1711
1712 oop component_mirror = java_lang_Class::component_mirror(mirror);
1713 if (component_mirror == NULL) {
1714 return NULL;
1715 }
1716 Klass* component_klass = java_lang_Class::as_Klass(component_mirror);
1717 if (component_klass != NULL) {
1718 JVMCIKlassHandle klass_handle(THREAD);
1719 klass_handle = component_klass;
1720 JVMCIObject result = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
1721 return JVMCIENV->get_jobject(result);
1722 }
1723 BasicType type = java_lang_Class::primitive_type(component_mirror);
1724 JVMCIObject result = JVMCIENV->get_jvmci_primitive_type(type);
1725 return JVMCIENV->get_jobject(result);
1726 C2V_END
1727
1728 C2V_VMENTRY(void, ensureInitialized, (JNIEnv* env, jobject, jobject jvmci_type))
1729 if (jvmci_type == NULL) {
1730 JVMCI_THROW(NullPointerException);
1731 }
1732
1733 Klass* klass = JVMCIENV->asKlass(jvmci_type);
1734 if (klass != NULL && klass->should_be_initialized()) {
1735 InstanceKlass* k = InstanceKlass::cast(klass);
1736 k->initialize(CHECK);
1737 }
1738 C2V_END
1739
1740 C2V_VMENTRY(void, ensureLinked, (JNIEnv* env, jobject, jobject jvmci_type))
1741 if (jvmci_type == NULL) {
1742 JVMCI_THROW(NullPointerException);
1743 }
1744
1745 Klass* klass = JVMCIENV->asKlass(jvmci_type);
1746 if (klass != NULL && klass->is_instance_klass()) {
1747 InstanceKlass* k = InstanceKlass::cast(klass);
1748 k->link_class(CHECK);
1749 }
1750 C2V_END
1751
1752 C2V_VMENTRY_0(jint, interpreterFrameSize, (JNIEnv* env, jobject, jobject bytecode_frame_handle))
1753 if (bytecode_frame_handle == NULL) {
1754 JVMCI_THROW_0(NullPointerException);
1755 }
1756
1757 JVMCIObject top_bytecode_frame = JVMCIENV->wrap(bytecode_frame_handle);
1758 JVMCIObject bytecode_frame = top_bytecode_frame;
1759 int size = 0;
1760 int callee_parameters = 0;
1761 int callee_locals = 0;
1762 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1763 int extra_args = method->max_stack() - JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1764
1765 while (bytecode_frame.is_non_null()) {
1766 int locks = JVMCIENV->get_BytecodeFrame_numLocks(bytecode_frame);
1767 int temps = JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1768 bool is_top_frame = (JVMCIENV->equals(bytecode_frame, top_bytecode_frame));
1769 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1770
1771 int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
1772 temps + callee_parameters,
1773 extra_args,
1774 locks,
1775 callee_parameters,
1776 callee_locals,
1777 is_top_frame);
1778 size += frame_size;
1779
1780 callee_parameters = method->size_of_parameters();
1781 callee_locals = method->max_locals();
1782 extra_args = 0;
1783 bytecode_frame = JVMCIENV->get_BytecodePosition_caller(bytecode_frame);
1784 }
1785 return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
1786 C2V_END
1787
1788 C2V_VMENTRY(void, compileToBytecode, (JNIEnv* env, jobject, jobject lambda_form_handle))
1789 Handle lambda_form = JVMCIENV->asConstant(JVMCIENV->wrap(lambda_form_handle), JVMCI_CHECK);
1790 if (lambda_form->is_a(vmClasses::LambdaForm_klass())) {
1791 TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode");
1792 JavaValue result(T_VOID);
1793 JavaCalls::call_special(&result, lambda_form, vmClasses::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK);
1794 } else {
1795 JVMCI_THROW_MSG(IllegalArgumentException,
1796 err_msg("Unexpected type: %s", lambda_form->klass()->external_name()))
1797 }
1798 C2V_END
1799
1800 C2V_VMENTRY_0(jint, getIdentityHashCode, (JNIEnv* env, jobject, jobject object))
1801 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1802 return obj->identity_hash();
1803 C2V_END
1804
1805 C2V_VMENTRY_0(jboolean, isInternedString, (JNIEnv* env, jobject, jobject object))
1806 Handle str = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1807 if (!java_lang_String::is_instance(str())) {
1808 return false;
1809 }
1810 int len;
1811 jchar* name = java_lang_String::as_unicode_string(str(), len, CHECK_false);
1812 return (StringTable::lookup(name, len) != NULL);
1813 C2V_END
1814
1815
1816 C2V_VMENTRY_NULL(jobject, unboxPrimitive, (JNIEnv* env, jobject, jobject object))
1817 if (object == NULL) {
1818 JVMCI_THROW_0(NullPointerException);
1819 }
1820 Handle box = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
1821 BasicType type = java_lang_boxing_object::basic_type(box());
1822 jvalue result;
1823 if (java_lang_boxing_object::get_value(box(), &result) == T_ILLEGAL) {
1824 return NULL;
1825 }
1826 JVMCIObject boxResult = JVMCIENV->create_box(type, &result, JVMCI_CHECK_NULL);
1827 return JVMCIENV->get_jobject(boxResult);
1828 C2V_END
1829
1830 C2V_VMENTRY_NULL(jobject, boxPrimitive, (JNIEnv* env, jobject, jobject object))
1831 if (object == NULL) {
1832 JVMCI_THROW_0(NullPointerException);
1833 }
1834 JVMCIObject box = JVMCIENV->wrap(object);
1835 BasicType type = JVMCIENV->get_box_type(box);
1836 if (type == T_ILLEGAL) {
1837 return NULL;
1838 }
1839 jvalue value = JVMCIENV->get_boxed_value(type, box);
1840 JavaValue box_result(T_OBJECT);
1841 JavaCallArguments jargs;
1842 Klass* box_klass = NULL;
1843 Symbol* box_signature = NULL;
1844 #define BOX_CASE(bt, v, argtype, name) \
1845 case bt: \
1846 jargs.push_##argtype(value.v); \
1847 box_klass = vmClasses::name##_klass(); \
1848 box_signature = vmSymbols::name##_valueOf_signature(); \
1849 break
1850
1851 switch (type) {
1852 BOX_CASE(T_BOOLEAN, z, int, Boolean);
1853 BOX_CASE(T_BYTE, b, int, Byte);
1854 BOX_CASE(T_CHAR, c, int, Character);
1855 BOX_CASE(T_SHORT, s, int, Short);
1856 BOX_CASE(T_INT, i, int, Integer);
1857 BOX_CASE(T_LONG, j, long, Long);
1858 BOX_CASE(T_FLOAT, f, float, Float);
1859 BOX_CASE(T_DOUBLE, d, double, Double);
1860 default:
1861 ShouldNotReachHere();
1862 }
1863 #undef BOX_CASE
1864
1865 JavaCalls::call_static(&box_result,
1866 box_klass,
1867 vmSymbols::valueOf_name(),
1868 box_signature, &jargs, CHECK_NULL);
1869 oop hotspot_box = box_result.get_oop();
1870 JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false);
1871 return JVMCIENV->get_jobject(result);
1872 C2V_END
1873
1874 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, jobject holder))
1875 if (holder == NULL) {
1876 JVMCI_THROW_0(NullPointerException);
1877 }
1878 Klass* klass = JVMCIENV->asKlass(holder);
1879 if (!klass->is_instance_klass()) {
1880 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1881 return JVMCIENV->get_jobjectArray(methods);
1882 }
1883
1884 InstanceKlass* iklass = InstanceKlass::cast(klass);
1885 // Ensure class is linked
1886 iklass->link_class(CHECK_NULL);
1887
1888 GrowableArray<Method*> constructors_array;
1889 for (int i = 0; i < iklass->methods()->length(); i++) {
1890 Method* m = iklass->methods()->at(i);
1891 if (m->is_initializer() && !m->is_static()) {
1892 constructors_array.append(m);
1893 }
1894 }
1895 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
1896 for (int i = 0; i < constructors_array.length(); i++) {
1897 methodHandle ctor(THREAD, constructors_array.at(i));
1898 JVMCIObject method = JVMCIENV->get_jvmci_method(ctor, JVMCI_CHECK_NULL);
1899 JVMCIENV->put_object_at(methods, i, method);
1900 }
1901 return JVMCIENV->get_jobjectArray(methods);
1902 C2V_END
1903
1904 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, jobject holder))
1905 if (holder == NULL) {
1906 JVMCI_THROW_0(NullPointerException);
1907 }
1908 Klass* klass = JVMCIENV->asKlass(holder);
1909 if (!klass->is_instance_klass()) {
1910 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1911 return JVMCIENV->get_jobjectArray(methods);
1912 }
1913
1914 InstanceKlass* iklass = InstanceKlass::cast(klass);
1915 // Ensure class is linked
1916 iklass->link_class(CHECK_NULL);
1917
1918 GrowableArray<Method*> methods_array;
1919 for (int i = 0; i < iklass->methods()->length(); i++) {
1920 Method* m = iklass->methods()->at(i);
1921 if (!m->is_initializer() && !m->is_overpass()) {
1922 methods_array.append(m);
1923 }
1924 }
1925 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
1926 for (int i = 0; i < methods_array.length(); i++) {
1927 methodHandle mh(THREAD, methods_array.at(i));
1928 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1929 JVMCIENV->put_object_at(methods, i, method);
1930 }
1931 return JVMCIENV->get_jobjectArray(methods);
1932 C2V_END
1933
1934 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, jobject expected_type, jlong displacement, jobject kind_object))
1935 if (object == NULL || kind_object == NULL) {
1936 JVMCI_THROW_0(NullPointerException);
1937 }
1938
1939 JVMCIObject kind = JVMCIENV->wrap(kind_object);
1940 BasicType basic_type = JVMCIENV->kindToBasicType(kind, JVMCI_CHECK_NULL);
1941
1942 InstanceKlass* holder = NULL;
1943 if (expected_type != NULL) {
1944 holder = InstanceKlass::cast(JVMCIENV->asKlass(JVMCIENV->wrap(expected_type)));
1945 }
1946
1947 bool is_static = false;
1948 Handle obj;
1949 JVMCIObject base = JVMCIENV->wrap(object);
1950 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base)) {
1951 obj = JVMCIENV->asConstant(base, JVMCI_CHECK_NULL);
1952 // asConstant will throw an NPE if a constant contains NULL
1953
1954 if (holder != NULL && !obj->is_a(holder)) {
1955 // Not a subtype of field holder
1956 return NULL;
1957 }
1958 is_static = false;
1959 if (holder == NULL && java_lang_Class::is_instance(obj()) && displacement >= InstanceMirrorKlass::offset_of_static_fields()) {
1960 is_static = true;
1961 }
1962 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base)) {
1963 is_static = true;
1964 Klass* klass = JVMCIENV->asKlass(base);
1965 if (holder != NULL && holder != klass) {
1966 return NULL;
1967 }
1968 obj = Handle(THREAD, klass->java_mirror());
1969 } else {
1970 // The Java code is expected to guard against this path
1971 ShouldNotReachHere();
1972 }
1973
1974 int basic_type_elemsize = type2aelembytes(basic_type);
1975 if (displacement < 0 || ((size_t) displacement + basic_type_elemsize > HeapWordSize * obj->size())) {
1976 // Reading outside of the object bounds
1977 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading outside object bounds");
1978 }
1979
1980 // Perform basic sanity checks on the read. Primitive reads are permitted to read outside the
1981 // bounds of their fields but object reads must map exactly onto the underlying oop slot.
1982 bool aligned = (displacement % basic_type_elemsize) == 0;
1983 if (!aligned) {
1984 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "read is unaligned");
1985 }
1986 if (basic_type == T_OBJECT) {
1987 if (obj->is_objArray()) {
1988 if (displacement < arrayOopDesc::base_offset_in_bytes(T_OBJECT)) {
1989 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
1990 }
1991 if (displacement + heapOopSize > arrayOopDesc::base_offset_in_bytes(T_OBJECT) + arrayOop(obj())->length() * heapOopSize) {
1992 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading after last array element");
1993 }
1994 if (((displacement - arrayOopDesc::base_offset_in_bytes(T_OBJECT)) % heapOopSize) != 0) {
1995 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "misaligned object read from array");
1996 }
1997 } else if (obj->is_instance()) {
1998 InstanceKlass* klass = InstanceKlass::cast(is_static ? java_lang_Class::as_Klass(obj()) : obj->klass());
1999 fieldDescriptor fd;
2000 if (!klass->find_field_from_offset(displacement, is_static, &fd)) {
2001 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Can't find field at displacement %d in object of type %s", (int) displacement, klass->external_name()));
2002 }
2003 if (fd.field_type() != T_OBJECT && fd.field_type() != T_ARRAY) {
2004 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Field at displacement %d in object of type %s is %s but expected %s", (int) displacement,
2005 klass->external_name(), type2name(fd.field_type()), type2name(basic_type)));
2006 }
2007 } else if (obj->is_typeArray()) {
2008 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Can't read objects from primitive array");
2009 } else {
2010 ShouldNotReachHere();
2011 }
2012 } else {
2013 if (obj->is_objArray()) {
2014 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Reading primitive from object array");
2015 } else if (obj->is_typeArray()) {
2016 if (displacement < arrayOopDesc::base_offset_in_bytes(ArrayKlass::cast(obj->klass())->element_type())) {
2017 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header");
2018 }
2019 }
2020 }
2021
2022 jlong value = 0;
2023
2024 // Treat all reads as volatile for simplicity as this function can be used
2025 // both for reading Java fields declared as volatile as well as for constant
2026 // folding Unsafe.get* methods with volatile semantics.
2027
2028 switch (basic_type) {
2029 case T_BOOLEAN: value = obj->bool_field_acquire(displacement); break;
2030 case T_BYTE: value = obj->byte_field_acquire(displacement); break;
2031 case T_SHORT: value = obj->short_field_acquire(displacement); break;
2032 case T_CHAR: value = obj->char_field_acquire(displacement); break;
2033 case T_FLOAT:
2034 case T_INT: value = obj->int_field_acquire(displacement); break;
2035 case T_DOUBLE:
2036 case T_LONG: value = obj->long_field_acquire(displacement); break;
2037
2038 case T_OBJECT: {
2039 if (displacement == java_lang_Class::component_mirror_offset() && java_lang_Class::is_instance(obj()) &&
2040 (java_lang_Class::as_Klass(obj()) == NULL || !java_lang_Class::as_Klass(obj())->is_array_klass())) {
2041 // Class.componentType for non-array classes can transiently contain an int[] that's
2042 // used for locking so always return null to mimic Class.getComponentType()
2043 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
2044 }
2045
2046 oop value = obj->obj_field_acquire(displacement);
2047
2048 if (value == NULL) {
2049 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
2050 } else {
2051 if (value != NULL && !oopDesc::is_oop(value)) {
2052 // Throw an exception to improve debuggability. This check isn't totally reliable because
2053 // is_oop doesn't try to be completety safe but for most invalid values it provides a good
2054 // enough answer. It possible to crash in the is_oop call but that just means the crash happens
2055 // closer to where things went wrong.
2056 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Read bad oop " INTPTR_FORMAT " at offset " JLONG_FORMAT " in object " INTPTR_FORMAT " of type %s",
2057 p2i(value), displacement, p2i(obj()), obj->klass()->external_name()));
2058 }
2059
2060 JVMCIObject result = JVMCIENV->get_object_constant(value);
2061 return JVMCIENV->get_jobject(result);
2062 }
2063 }
2064
2065 default:
2066 ShouldNotReachHere();
2067 }
2068 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(kind, value, JVMCI_CHECK_NULL);
2069 return JVMCIENV->get_jobject(result);
2070 C2V_END
2071
2072 C2V_VMENTRY_0(jboolean, isInstance, (JNIEnv* env, jobject, jobject holder, jobject object))
2073 if (object == NULL || holder == NULL) {
2074 JVMCI_THROW_0(NullPointerException);
2075 }
2076 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2077 Klass* klass = JVMCIENV->asKlass(JVMCIENV->wrap(holder));
2078 return obj->is_a(klass);
2079 C2V_END
2080
2081 C2V_VMENTRY_0(jboolean, isAssignableFrom, (JNIEnv* env, jobject, jobject holder, jobject otherHolder))
2082 if (holder == NULL || otherHolder == NULL) {
2083 JVMCI_THROW_0(NullPointerException);
2084 }
2085 Klass* klass = JVMCIENV->asKlass(JVMCIENV->wrap(holder));
2086 Klass* otherKlass = JVMCIENV->asKlass(JVMCIENV->wrap(otherHolder));
2087 return otherKlass->is_subtype_of(klass);
2088 C2V_END
2089
2090 C2V_VMENTRY_0(jboolean, isTrustedForIntrinsics, (JNIEnv* env, jobject, jobject holder))
2091 if (holder == NULL) {
2092 JVMCI_THROW_0(NullPointerException);
2093 }
2094 InstanceKlass* ik = InstanceKlass::cast(JVMCIENV->asKlass(JVMCIENV->wrap(holder)));
2095 if (ik->class_loader_data()->is_boot_class_loader_data() || ik->class_loader_data()->is_platform_class_loader_data()) {
2096 return true;
2097 }
2098 return false;
2099 C2V_END
2100
2101 C2V_VMENTRY_NULL(jobject, asJavaType, (JNIEnv* env, jobject, jobject object))
2102 if (object == NULL) {
2103 JVMCI_THROW_0(NullPointerException);
2104 }
2105 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2106 if (java_lang_Class::is_instance(obj())) {
2107 if (java_lang_Class::is_primitive(obj())) {
2108 JVMCIObject type = JVMCIENV->get_jvmci_primitive_type(java_lang_Class::primitive_type(obj()));
2109 return JVMCIENV->get_jobject(type);
2110 }
2111 Klass* klass = java_lang_Class::as_Klass(obj());
2112 JVMCIKlassHandle klass_handle(THREAD);
2113 klass_handle = klass;
2114 JVMCIObject type = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
2115 return JVMCIENV->get_jobject(type);
2116 }
2117 return NULL;
2118 C2V_END
2119
2120
2121 C2V_VMENTRY_NULL(jobject, asString, (JNIEnv* env, jobject, jobject object))
2122 if (object == NULL) {
2123 JVMCI_THROW_0(NullPointerException);
2124 }
2125 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2126 const char* str = java_lang_String::as_utf8_string(obj());
2127 JVMCIObject result = JVMCIENV->create_string(str, JVMCI_CHECK_NULL);
2128 return JVMCIENV->get_jobject(result);
2129 C2V_END
2130
2131
2132 C2V_VMENTRY_0(jboolean, equals, (JNIEnv* env, jobject, jobject x, jlong xHandle, jobject y, jlong yHandle))
2133 if (x == NULL || y == NULL) {
2134 JVMCI_THROW_0(NullPointerException);
2135 }
2136 return JVMCIENV->resolve_oop_handle(xHandle) == JVMCIENV->resolve_oop_handle(yHandle);
2137 C2V_END
2138
2139 C2V_VMENTRY_NULL(jobject, getJavaMirror, (JNIEnv* env, jobject, jobject object))
2140 if (object == NULL) {
2141 JVMCI_THROW_0(NullPointerException);
2142 }
2143 JVMCIObject base_object = JVMCIENV->wrap(object);
2144 Handle mirror;
2145 if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
2146 mirror = Handle(THREAD, JVMCIENV->asKlass(base_object)->java_mirror());
2147 } else if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(base_object)) {
2148 mirror = JVMCIENV->asConstant(JVMCIENV->get_HotSpotResolvedPrimitiveType_mirror(base_object), JVMCI_CHECK_NULL);
2149 } else {
2150 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2151 err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
2152 }
2153 JVMCIObject result = JVMCIENV->get_object_constant(mirror());
2154 return JVMCIENV->get_jobject(result);
2155 C2V_END
2156
2157
2158 C2V_VMENTRY_0(jint, getArrayLength, (JNIEnv* env, jobject, jobject x))
2159 if (x == NULL) {
2160 JVMCI_THROW_0(NullPointerException);
2161 }
2162 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2163 if (xobj->klass()->is_array_klass()) {
2164 return arrayOop(xobj())->length();
2165 }
2166 return -1;
2167 C2V_END
2168
2169
2170 C2V_VMENTRY_NULL(jobject, readArrayElement, (JNIEnv* env, jobject, jobject x, int index))
2171 if (x == NULL) {
2172 JVMCI_THROW_0(NullPointerException);
2173 }
2174 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_NULL);
2175 if (xobj->klass()->is_array_klass()) {
2176 arrayOop array = arrayOop(xobj());
2177 BasicType element_type = ArrayKlass::cast(array->klass())->element_type();
2178 if (index < 0 || index >= array->length()) {
2179 return NULL;
2180 }
2181 JVMCIObject result;
2182
2183 if (element_type == T_OBJECT) {
2184 result = JVMCIENV->get_object_constant(objArrayOop(xobj())->obj_at(index));
2185 if (result.is_null()) {
2186 result = JVMCIENV->get_JavaConstant_NULL_POINTER();
2187 }
2188 } else {
2189 jvalue value;
2190 switch (element_type) {
2191 case T_DOUBLE: value.d = typeArrayOop(xobj())->double_at(index); break;
2192 case T_FLOAT: value.f = typeArrayOop(xobj())->float_at(index); break;
2193 case T_LONG: value.j = typeArrayOop(xobj())->long_at(index); break;
2194 case T_INT: value.i = typeArrayOop(xobj())->int_at(index); break;
2195 case T_SHORT: value.s = typeArrayOop(xobj())->short_at(index); break;
2196 case T_CHAR: value.c = typeArrayOop(xobj())->char_at(index); break;
2197 case T_BYTE: value.b = typeArrayOop(xobj())->byte_at(index); break;
2198 case T_BOOLEAN: value.z = typeArrayOop(xobj())->byte_at(index) & 1; break;
2199 default: ShouldNotReachHere();
2200 }
2201 result = JVMCIENV->create_box(element_type, &value, JVMCI_CHECK_NULL);
2202 }
2203 assert(!result.is_null(), "must have a value");
2204 return JVMCIENV->get_jobject(result);
2205 }
2206 return NULL;;
2207 C2V_END
2208
2209
2210 C2V_VMENTRY_0(jint, arrayBaseOffset, (JNIEnv* env, jobject, jobject kind))
2211 if (kind == NULL) {
2212 JVMCI_THROW_0(NullPointerException);
2213 }
2214 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->wrap(kind), JVMCI_CHECK_0);
2215 return arrayOopDesc::header_size(type) * HeapWordSize;
2216 C2V_END
2217
2218 C2V_VMENTRY_0(jint, arrayIndexScale, (JNIEnv* env, jobject, jobject kind))
2219 if (kind == NULL) {
2220 JVMCI_THROW_0(NullPointerException);
2221 }
2222 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->wrap(kind), JVMCI_CHECK_0);
2223 return type2aelembytes(type);
2224 C2V_END
2225
2226 C2V_VMENTRY(void, deleteGlobalHandle, (JNIEnv* env, jobject, jlong handle))
2227 if (handle != 0) {
2228 JVMCIENV->runtime()->destroy_oop_handle(handle);
2229 }
2230 }
2231
2232 static void requireJVMCINativeLibrary(JVMCI_TRAPS) {
2233 if (!UseJVMCINativeLibrary) {
2234 JVMCI_THROW_MSG(UnsupportedOperationException, "JVMCI shared library is not enabled (requires -XX:+UseJVMCINativeLibrary)");
2235 }
2236 }
2237
2238 C2V_VMENTRY_NULL(jlongArray, registerNativeMethods, (JNIEnv* env, jobject, jclass mirror))
2239 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2240 requireInHotSpot("registerNativeMethods", JVMCI_CHECK_NULL);
2241 char* sl_path;
2242 void* sl_handle;
2243 JVMCIRuntime* runtime;
2244 {
2245 // Ensure the JVMCI shared library runtime is initialized.
2246 JVMCIEnv __peer_jvmci_env__(thread, false, __FILE__, __LINE__);
2247 JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2248 HandleMark hm(THREAD);
2249 runtime = JVMCI::compiler_runtime(thread);
2250 if (peerEnv->has_pending_exception()) {
2251 peerEnv->describe_pending_exception(true);
2252 }
2253 sl_handle = JVMCI::get_shared_library(sl_path, false);
2254 if (sl_handle == NULL) {
2255 JVMCI_THROW_MSG_0(InternalError, err_msg("Error initializing JVMCI runtime %d", runtime->id()));
2256 }
2257 }
2258
2259 if (mirror == NULL) {
2260 JVMCI_THROW_0(NullPointerException);
2261 }
2262 Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
2263 if (klass == NULL || !klass->is_instance_klass()) {
2264 JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type");
2265 }
2266
2267 InstanceKlass* iklass = InstanceKlass::cast(klass);
2268 for (int i = 0; i < iklass->methods()->length(); i++) {
2269 methodHandle method(THREAD, iklass->methods()->at(i));
2270 if (method->is_native()) {
2271
2272 // Compute argument size
2273 int args_size = 1 // JNIEnv
2274 + (method->is_static() ? 1 : 0) // class for static methods
2275 + method->size_of_parameters(); // actual parameters
2276
2277 // 1) Try JNI short style
2278 stringStream st;
2279 char* pure_name = NativeLookup::pure_jni_name(method);
2280 guarantee(pure_name != NULL, "Illegal native method name encountered");
2281 os::print_jni_name_prefix_on(&st, args_size);
2282 st.print_raw(pure_name);
2283 os::print_jni_name_suffix_on(&st, args_size);
2284 char* jni_name = st.as_string();
2285
2286 address entry = (address) os::dll_lookup(sl_handle, jni_name);
2287 if (entry == NULL) {
2288 // 2) Try JNI long style
2289 st.reset();
2290 char* long_name = NativeLookup::long_jni_name(method);
2291 guarantee(long_name != NULL, "Illegal native method name encountered");
2292 os::print_jni_name_prefix_on(&st, args_size);
2293 st.print_raw(pure_name);
2294 st.print_raw(long_name);
2295 os::print_jni_name_suffix_on(&st, args_size);
2296 char* jni_long_name = st.as_string();
2297 entry = (address) os::dll_lookup(sl_handle, jni_long_name);
2298 if (entry == NULL) {
2299 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [neither %s nor %s exist in %s]",
2300 method->name_and_sig_as_C_string(),
2301 jni_name, jni_long_name, sl_path));
2302 }
2303 }
2304
2305 if (method->has_native_function() && entry != method->native_function()) {
2306 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [cannot re-link from " PTR_FORMAT " to " PTR_FORMAT "]",
2307 method->name_and_sig_as_C_string(), p2i(method->native_function()), p2i(entry)));
2308 }
2309 method->set_native_function(entry, Method::native_bind_event_is_interesting);
2310 log_debug(jni, resolve)("[Dynamic-linking native method %s.%s ... JNI] @ " PTR_FORMAT,
2311 method->method_holder()->external_name(),
2312 method->name()->as_C_string(),
2313 p2i((void*) entry));
2314 }
2315 }
2316
2317 typeArrayOop info_oop = oopFactory::new_longArray(4, CHECK_0);
2318 jlongArray info = (jlongArray) JNIHandles::make_local(THREAD, info_oop);
2319 runtime->init_JavaVM_info(info, JVMCI_CHECK_0);
2320 return info;
2321 }
2322
2323 C2V_VMENTRY_PREFIX(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject c2vm))
2324 if (thread == nullptr || thread->libjvmci_runtime() == nullptr) {
2325 // Called from unattached JVMCI shared library thread
2326 return false;
2327 }
2328 JVMCITraceMark jtm("isCurrentThreadAttached");
2329 if (thread->jni_environment() == env) {
2330 C2V_BLOCK(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject))
2331 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2332 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2333 if (runtime == nullptr || !runtime->has_shared_library_javavm()) {
2334 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in isCurrentThreadAttached");
2335 }
2336 JNIEnv* peerEnv;
2337 return runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) == JNI_OK;
2338 }
2339 return true;
2340 C2V_END
2341
2342 C2V_VMENTRY_PREFIX(jlong, getCurrentJavaThread, (JNIEnv* env, jobject c2vm))
2343 if (thread == NULL) {
2344 // Called from unattached JVMCI shared library thread
2345 return 0L;
2346 }
2347 JVMCITraceMark jtm("getCurrentJavaThread");
2348 return (jlong) p2i(thread);
2349 C2V_END
2350
2351 // Attaches a thread started in a JVMCI shared library to a JavaThread and JVMCI runtime.
2352 static void attachSharedLibraryThread(JNIEnv* env, jbyteArray name, jboolean as_daemon) {
2353 JavaVM* javaVM = nullptr;
2354 jint res = env->GetJavaVM(&javaVM);
2355 if (res != JNI_OK) {
2356 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Error getting shared library JavaVM from shared library JNIEnv: %d", res));
2357 }
2358 extern struct JavaVM_ main_vm;
2359 JNIEnv* hotspotEnv;
2360
2361 int name_len = env->GetArrayLength(name);
2362 char name_buf[64]; // Cannot use Resource heap as it requires a current thread
2363 int to_copy = MIN2(name_len, (int) sizeof(name_buf) - 1);
2364 env->GetByteArrayRegion(name, 0, to_copy, (jbyte*) name_buf);
2365 name_buf[to_copy] = '\0';
2366 JavaVMAttachArgs attach_args;
2367 attach_args.version = JNI_VERSION_1_2;
2368 attach_args.name = name_buf;
2369 attach_args.group = nullptr;
2370 res = as_daemon ? main_vm.AttachCurrentThreadAsDaemon((void**)&hotspotEnv, &attach_args) :
2371 main_vm.AttachCurrentThread((void**)&hotspotEnv, &attach_args);
2372 if (res != JNI_OK) {
2373 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Trying to attach thread returned %d", res));
2374 }
2375 JavaThread* thread = get_current_thread(false);
2376 const char* attach_error;
2377 {
2378 // Transition to VM
2379 JVMCI_VM_ENTRY_MARK
2380 attach_error = JVMCIRuntime::attach_shared_library_thread(thread, javaVM);
2381 // Transition back to Native
2382 }
2383 if (attach_error != nullptr) {
2384 JNI_THROW("attachCurrentThread", InternalError, attach_error);
2385 }
2386 }
2387
2388 C2V_VMENTRY_PREFIX(jboolean, attachCurrentThread, (JNIEnv* env, jobject c2vm, jbyteArray name, jboolean as_daemon, jlongArray javaVM_info))
2389 if (thread == nullptr) {
2390 attachSharedLibraryThread(env, name, as_daemon);
2391 return true;
2392 }
2393 JVMCITraceMark jtm("attachCurrentThread");
2394 if (thread->jni_environment() == env) {
2395 // Called from HotSpot
2396 C2V_BLOCK(jboolean, attachCurrentThread, (JNIEnv* env, jobject, jboolean))
2397 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2398
2399 JVMCIRuntime* runtime = JVMCI::compiler_runtime(thread);
2400 JNIEnv* peerJNIEnv;
2401 if (runtime->has_shared_library_javavm()) {
2402 if (runtime->GetEnv(thread, (void**)&peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2403 // Already attached
2404 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0);
2405 return false;
2406 }
2407 }
2408
2409 {
2410 // Ensure the JVMCI shared library runtime is initialized.
2411 JVMCIEnv __peer_jvmci_env__(thread, false, __FILE__, __LINE__);
2412 JVMCIEnv* peerJVMCIEnv = &__peer_jvmci_env__;
2413 HandleMark hm(thread);
2414 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(peerJVMCIEnv);
2415 if (peerJVMCIEnv->has_pending_exception()) {
2416 peerJVMCIEnv->describe_pending_exception(true);
2417 }
2418 char* sl_path;
2419 if (JVMCI::get_shared_library(sl_path, false) == nullptr) {
2420 JVMCI_THROW_MSG_0(InternalError, "Error initializing JVMCI runtime");
2421 }
2422 }
2423
2424 JavaVMAttachArgs attach_args;
2425 attach_args.version = JNI_VERSION_1_2;
2426 attach_args.name = const_cast<char*>(thread->name());
2427 attach_args.group = nullptr;
2428 jint res = as_daemon ? runtime->AttachCurrentThreadAsDaemon(thread, (void**) &peerJNIEnv, &attach_args) :
2429 runtime->AttachCurrentThread(thread, (void**) &peerJNIEnv, &attach_args);
2430
2431 if (res == JNI_OK) {
2432 guarantee(peerJNIEnv != nullptr, "must be");
2433 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0);
2434 JVMCI_event_1("attached to JavaVM[%d] for JVMCI runtime %d", runtime->get_shared_library_javavm_id(), runtime->id());
2435 return true;
2436 }
2437 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, attach_args.name));
2438 }
2439 // Called from JVMCI shared library
2440 return false;
2441 C2V_END
2442
2443 C2V_VMENTRY_PREFIX(jboolean, detachCurrentThread, (JNIEnv* env, jobject c2vm, jboolean release))
2444 if (thread == nullptr) {
2445 // Called from unattached JVMCI shared library thread
2446 JNI_THROW_("detachCurrentThread", IllegalStateException, "Cannot detach non-attached thread", false);
2447 }
2448 JVMCITraceMark jtm("detachCurrentThread");
2449 if (thread->jni_environment() == env) {
2450 // Called from HotSpot
2451 C2V_BLOCK(void, detachCurrentThread, (JNIEnv* env, jobject))
2452 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2453 requireInHotSpot("detachCurrentThread", JVMCI_CHECK_0);
2454 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2455 if (runtime == nullptr || !runtime->has_shared_library_javavm()) {
2456 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in detachCurrentThread");
2457 }
2458 JNIEnv* peerEnv;
2459
2460 if (runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) != JNI_OK) {
2461 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("Cannot detach non-attached thread: %s", thread->name()));
2462 }
2463 jint res = runtime->DetachCurrentThread(thread);
2464 if (res != JNI_OK) {
2465 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, thread->name()));
2466 }
2467 JVMCI_event_1("detached from JavaVM[%d] for JVMCI runtime %d",
2468 runtime->get_shared_library_javavm_id(), runtime->id());
2469 if (release) {
2470 return runtime->detach_thread(thread, "user thread detach");
2471 }
2472 } else {
2473 // Called from attached JVMCI shared library thread
2474 if (release) {
2475 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread cannot release JVMCI shared library JavaVM", false);
2476 }
2477 JVMCIRuntime* runtime = thread->libjvmci_runtime();
2478 if (runtime == nullptr) {
2479 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread should have a JVMCI runtime", false);
2480 }
2481 {
2482 // Transition to VM
2483 C2V_BLOCK(jboolean, detachCurrentThread, (JNIEnv* env, jobject))
2484 // Cannot destroy shared library JavaVM as we're about to return to it.
2485 runtime->detach_thread(thread, "shared library thread detach", false);
2486 JVMCI_event_1("detaching JVMCI shared library thread from HotSpot JavaVM");
2487 // Transition back to Native
2488 }
2489 extern struct JavaVM_ main_vm;
2490 jint res = main_vm.DetachCurrentThread();
2491 if (res != JNI_OK) {
2492 JNI_THROW_("detachCurrentThread", InternalError, "Cannot detach non-attached thread", false);
2493 }
2494 }
2495 return false;
2496 C2V_END
2497
2498 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle, jboolean callPostTranslation))
2499 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2500 if (obj_handle == NULL) {
2501 return 0L;
2502 }
2503 JVMCIEnv __peer_jvmci_env__(thread, !JVMCIENV->is_hotspot(), __FILE__, __LINE__);
2504 JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2505 JVMCIEnv* thisEnv = JVMCIENV;
2506
2507 JVMCIObject obj = thisEnv->wrap(obj_handle);
2508 JVMCIObject result;
2509 if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) {
2510 methodHandle method(THREAD, thisEnv->asMethod(obj));
2511 result = peerEnv->get_jvmci_method(method, JVMCI_CHECK_0);
2512 } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) {
2513 Klass* klass = thisEnv->asKlass(obj);
2514 JVMCIKlassHandle klass_handle(THREAD);
2515 klass_handle = klass;
2516 result = peerEnv->get_jvmci_type(klass_handle, JVMCI_CHECK_0);
2517 } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) {
2518 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0);
2519 result = peerEnv->get_jvmci_primitive_type(type);
2520 } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) ||
2521 thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) {
2522 Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0);
2523 result = peerEnv->get_object_constant(constant());
2524 } else if (thisEnv->isa_HotSpotNmethod(obj)) {
2525 nmethodLocker locker;
2526 nmethod* nm = JVMCIENV->get_nmethod(obj, locker);
2527 if (nm != NULL) {
2528 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2529 if (data != NULL) {
2530 if (peerEnv->is_hotspot()) {
2531 // Only the mirror in the HotSpot heap is accessible
2532 // through JVMCINMethodData
2533 oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true);
2534 if (nmethod_mirror != NULL) {
2535 result = HotSpotJVMCI::wrap(nmethod_mirror);
2536 }
2537 }
2538 }
2539 }
2540 if (result.is_null()) {
2541 JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj);
2542 methodHandle mh(THREAD, thisEnv->asMethod(methodObject));
2543 jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj);
2544 jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj);
2545 JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj);
2546 const char* cstring = name_string.is_null() ? NULL : thisEnv->as_utf8_string(name_string);
2547 // Create a new HotSpotNmethod instance in the peer runtime
2548 result = peerEnv->new_HotSpotNmethod(mh, cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0);
2549 if (result.is_null()) {
2550 // exception occurred (e.g. OOME) creating a new HotSpotNmethod
2551 } else if (nm == NULL) {
2552 // nmethod must have been unloaded
2553 } else {
2554 // Link the new HotSpotNmethod to the nmethod
2555 peerEnv->initialize_installed_code(result, nm, JVMCI_CHECK_0);
2556 // Only HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime.
2557 if (peerEnv->is_hotspot()) {
2558 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2559 if (data == NULL) {
2560 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot set HotSpotNmethod mirror for default nmethod");
2561 }
2562 if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != NULL) {
2563 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod");
2564 }
2565 oop nmethod_mirror = HotSpotJVMCI::resolve(result);
2566 data->set_nmethod_mirror(nm, nmethod_mirror);
2567 }
2568 }
2569 }
2570 } else {
2571 JVMCI_THROW_MSG_0(IllegalArgumentException,
2572 err_msg("Cannot translate object of type: %s", thisEnv->klass_name(obj)));
2573 }
2574 if (callPostTranslation) {
2575 peerEnv->call_HotSpotJVMCIRuntime_postTranslation(result, JVMCI_CHECK_0);
2576 }
2577 // Propagate any exception that occurred while creating the translated object
2578 if (peerEnv->transfer_pending_exception(thread, thisEnv)) {
2579 return 0L;
2580 }
2581 return (jlong) peerEnv->make_global(result).as_jobject();
2582 }
2583
2584 C2V_VMENTRY_NULL(jobject, unhand, (JNIEnv* env, jobject, jlong obj_handle))
2585 requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2586 if (obj_handle == 0L) {
2587 return NULL;
2588 }
2589 jobject global_handle = (jobject) obj_handle;
2590 JVMCIObject global_handle_obj = JVMCIENV->wrap(global_handle);
2591 jobject result = JVMCIENV->make_local(global_handle_obj).as_jobject();
2592
2593 JVMCIENV->destroy_global(global_handle_obj);
2594 return result;
2595 }
2596
2597 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle))
2598 JVMCIObject code = JVMCIENV->wrap(code_handle);
2599 // Execute this operation for the side effect of updating the InstalledCode state
2600 nmethodLocker locker;
2601 JVMCIENV->get_nmethod(code, locker);
2602 }
2603
2604 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2605 JVMCIObject code = JVMCIENV->wrap(code_handle);
2606 nmethodLocker locker;
2607 CodeBlob* cb = JVMCIENV->get_code_blob(code, locker);
2608 if (cb == NULL) {
2609 return NULL;
2610 }
2611 int code_size = cb->code_size();
2612 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2613 JVMCIENV->copy_bytes_from((jbyte*) cb->code_begin(), result, 0, code_size);
2614 return JVMCIENV->get_jbyteArray(result);
2615 }
2616
2617 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, jobject jvmci_method))
2618 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2619 methodHandle m(THREAD, JVMCIENV->asMethod(jvmci_method));
2620 oop executable;
2621 if (m->is_initializer()) {
2622 if (m->is_static_initializer()) {
2623 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2624 "Cannot create java.lang.reflect.Method for class initializer");
2625 }
2626 executable = Reflection::new_constructor(m, CHECK_NULL);
2627 } else {
2628 executable = Reflection::new_method(m, false, CHECK_NULL);
2629 }
2630 return JNIHandles::make_local(THREAD, executable);
2631 }
2632
2633 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, jobject jvmci_type, jint index))
2634 requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL);
2635 Klass* klass = JVMCIENV->asKlass(jvmci_type);
2636 if (!klass->is_instance_klass()) {
2637 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2638 err_msg("Expected non-primitive type, got %s", klass->external_name()));
2639 }
2640 InstanceKlass* iklass = InstanceKlass::cast(klass);
2641 Array<u2>* fields = iklass->fields();
2642 if (index < 0 ||index > fields->length()) {
2643 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2644 err_msg("Field index %d out of bounds for %s", index, klass->external_name()));
2645 }
2646 fieldDescriptor fd(iklass, index);
2647 oop reflected = Reflection::new_field(&fd, CHECK_NULL);
2648 return JNIHandles::make_local(THREAD, reflected);
2649 }
2650
2651 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current))
2652 FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address);
2653 int result_length = 0;
2654 for (FailedSpeculation* fs = head; fs != NULL; fs = fs->next()) {
2655 result_length++;
2656 }
2657 int current_length = 0;
2658 JVMCIObjectArray current_array = NULL;
2659 if (current != NULL) {
2660 current_array = JVMCIENV->wrap(current);
2661 current_length = JVMCIENV->get_length(current_array);
2662 if (current_length == result_length) {
2663 // No new failures
2664 return current;
2665 }
2666 }
2667 JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL);
2668 int result_index = 0;
2669 for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) {
2670 assert(fs != NULL, "npe");
2671 JVMCIPrimitiveArray entry;
2672 if (result_index < current_length) {
2673 entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index);
2674 } else {
2675 entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL);
2676 JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len());
2677 }
2678 JVMCIENV->put_object_at(result, result_index++, entry);
2679 }
2680 return JVMCIENV->get_jobjectArray(result);
2681 }
2682
2683 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, jobject jvmci_method))
2684 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
2685 MethodData* method_data = method->method_data();
2686 if (method_data == NULL) {
2687 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
2688 method_data = MethodData::allocate(loader_data, method, CHECK_0);
2689 method->set_method_data(method_data);
2690 }
2691 return (jlong) method_data->get_failed_speculations_address();
2692 }
2693
2694 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address))
2695 FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address);
2696 }
2697
2698 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj))
2699 JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj);
2700 int speculation_len = JVMCIENV->get_length(speculation_handle);
2701 char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len);
2702 JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len);
2703 return FailedSpeculation::add_failed_speculation(NULL, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len);
2704 }
2705
2706 C2V_VMENTRY(void, callSystemExit, (JNIEnv* env, jobject, jint status))
2707 JavaValue result(T_VOID);
2708 JavaCallArguments jargs(1);
2709 jargs.push_int(status);
2710 JavaCalls::call_static(&result,
2711 vmClasses::System_klass(),
2712 vmSymbols::exit_method_name(),
2713 vmSymbols::int_void_signature(),
2714 &jargs,
2715 CHECK);
2716 }
2717
2718 C2V_VMENTRY_0(jlong, ticksNow, (JNIEnv* env, jobject))
2719 return CompilerEvent::ticksNow();
2720 }
2721
2722 C2V_VMENTRY_0(jint, registerCompilerPhase, (JNIEnv* env, jobject, jstring jphase_name))
2723 #if INCLUDE_JFR
2724 JVMCIObject phase_name = JVMCIENV->wrap(jphase_name);
2725 const char *name = JVMCIENV->as_utf8_string(phase_name);
2726 return CompilerEvent::PhaseEvent::get_phase_id(name, true, true, true);
2727 #else
2728 return -1;
2729 #endif // !INCLUDE_JFR
2730 }
2731
2732 C2V_VMENTRY(void, notifyCompilerPhaseEvent, (JNIEnv* env, jobject, jlong startTime, jint phase, jint compileId, jint level))
2733 EventCompilerPhase event;
2734 if (event.should_commit()) {
2735 CompilerEvent::PhaseEvent::post(event, startTime, phase, compileId, level);
2736 }
2737 }
2738
2739 C2V_VMENTRY(void, notifyCompilerInliningEvent, (JNIEnv* env, jobject, jint compileId, jobject caller, jobject callee, jboolean succeeded, jstring jmessage, jint bci))
2740 EventCompilerInlining event;
2741 if (event.should_commit()) {
2742 Method* caller_method = JVMCIENV->asMethod(caller);
2743 Method* callee_method = JVMCIENV->asMethod(callee);
2744 JVMCIObject message = JVMCIENV->wrap(jmessage);
2745 CompilerEvent::InlineEvent::post(event, compileId, caller_method, callee_method, succeeded, JVMCIENV->as_utf8_string(message), bci);
2746 }
2747 }
2748
2749 C2V_VMENTRY(void, setThreadLocalObject, (JNIEnv* env, jobject, jint id, jobject value))
2750 requireInHotSpot("setThreadLocalObject", JVMCI_CHECK);
2751 if (id == 0) {
2752 thread->set_jvmci_reserved_oop0(JNIHandles::resolve(value));
2753 return;
2754 }
2755 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
2756 err_msg("%d is not a valid thread local id", id));
2757 }
2758
2759 C2V_VMENTRY_NULL(jobject, getThreadLocalObject, (JNIEnv* env, jobject, jint id))
2760 requireInHotSpot("getThreadLocalObject", JVMCI_CHECK_NULL);
2761 if (id == 0) {
2762 return JNIHandles::make_local(thread->get_jvmci_reserved_oop0());
2763 }
2764 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
2765 err_msg("%d is not a valid thread local id", id));
2766 }
2767
2768 C2V_VMENTRY(void, setThreadLocalLong, (JNIEnv* env, jobject, jint id, jlong value))
2769 requireInHotSpot("setThreadLocalLong", JVMCI_CHECK);
2770 if (id == 0) {
2771 thread->set_jvmci_reserved0(value);
2772 } else if (id == 1) {
2773 thread->set_jvmci_reserved1(value);
2774 } else {
2775 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
2776 err_msg("%d is not a valid thread local id", id));
2777 }
2778 }
2779
2780 C2V_VMENTRY_0(jlong, getThreadLocalLong, (JNIEnv* env, jobject, jint id))
2781 requireInHotSpot("getThreadLocalLong", JVMCI_CHECK_0);
2782 if (id == 0) {
2783 return thread->get_jvmci_reserved0();
2784 } else if (id == 1) {
2785 return thread->get_jvmci_reserved1();
2786 } else {
2787 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
2788 err_msg("%d is not a valid thread local id", id));
2789 }
2790 }
2791
2792 #define CC (char*) /*cast a literal from (const char*)*/
2793 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
2794
2795 #define STRING "Ljava/lang/String;"
2796 #define OBJECT "Ljava/lang/Object;"
2797 #define CLASS "Ljava/lang/Class;"
2798 #define OBJECTCONSTANT "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;"
2799 #define HANDLECONSTANT "Ljdk/vm/ci/hotspot/IndirectHotSpotObjectConstantImpl;"
2800 #define EXECUTABLE "Ljava/lang/reflect/Executable;"
2801 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;"
2802 #define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;"
2803 #define TARGET_DESCRIPTION "Ljdk/vm/ci/code/TargetDescription;"
2804 #define BYTECODE_FRAME "Ljdk/vm/ci/code/BytecodeFrame;"
2805 #define JAVACONSTANT "Ljdk/vm/ci/meta/JavaConstant;"
2806 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;"
2807 #define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
2808 #define HS_RESOLVED_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
2809 #define HS_RESOLVED_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
2810 #define HS_RESOLVED_TYPE "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;"
2811 #define HS_RESOLVED_FIELD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaField;"
2812 #define HS_INSTALLED_CODE "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;"
2813 #define HS_NMETHOD "Ljdk/vm/ci/hotspot/HotSpotNmethod;"
2814 #define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
2815 #define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
2816 #define HS_CONFIG "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
2817 #define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
2818 #define HS_SPECULATION_LOG "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
2819 #define METASPACE_OBJECT "Ljdk/vm/ci/hotspot/MetaspaceObject;"
2820 #define REFLECTION_EXECUTABLE "Ljava/lang/reflect/Executable;"
2821 #define REFLECTION_FIELD "Ljava/lang/reflect/Field;"
2822 #define METASPACE_METHOD_DATA "J"
2823
2824 JNINativeMethod CompilerToVM::methods[] = {
2825 {CC "getBytecode", CC "(" HS_RESOLVED_METHOD ")[B", FN_PTR(getBytecode)},
2826 {CC "getExceptionTableStart", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getExceptionTableStart)},
2827 {CC "getExceptionTableLength", CC "(" HS_RESOLVED_METHOD ")I", FN_PTR(getExceptionTableLength)},
2828 {CC "findUniqueConcreteMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")" HS_RESOLVED_METHOD, FN_PTR(findUniqueConcreteMethod)},
2829 {CC "getImplementor", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS, FN_PTR(getImplementor)},
2830 {CC "getStackTraceElement", CC "(" HS_RESOLVED_METHOD "I)" STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)},
2831 {CC "methodIsIgnoredBySecurityStackWalk", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)},
2832 {CC "setNotInlinableOrCompilable", CC "(" HS_RESOLVED_METHOD ")V", FN_PTR(setNotInlinableOrCompilable)},
2833 {CC "isCompilable", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(isCompilable)},
2834 {CC "hasNeverInlineDirective", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(hasNeverInlineDirective)},
2835 {CC "shouldInlineMethod", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(shouldInlineMethod)},
2836 {CC "lookupType", CC "(" STRING HS_RESOLVED_KLASS "Z)" HS_RESOLVED_TYPE, FN_PTR(lookupType)},
2837 {CC "getArrayType", CC "(" HS_RESOLVED_TYPE ")" HS_RESOLVED_KLASS, FN_PTR(getArrayType)},
2838 {CC "lookupClass", CC "(" CLASS ")" HS_RESOLVED_TYPE, FN_PTR(lookupClass)},
2839 {CC "lookupNameInPool", CC "(" HS_CONSTANT_POOL "I)" STRING, FN_PTR(lookupNameInPool)},
2840 {CC "lookupNameAndTypeRefIndexInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(lookupNameAndTypeRefIndexInPool)},
2841 {CC "lookupSignatureInPool", CC "(" HS_CONSTANT_POOL "I)" STRING, FN_PTR(lookupSignatureInPool)},
2842 {CC "lookupKlassRefIndexInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(lookupKlassRefIndexInPool)},
2843 {CC "lookupKlassInPool", CC "(" HS_CONSTANT_POOL "I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)},
2844 {CC "lookupAppendixInPool", CC "(" HS_CONSTANT_POOL "I)" OBJECTCONSTANT, FN_PTR(lookupAppendixInPool)},
2845 {CC "lookupMethodInPool", CC "(" HS_CONSTANT_POOL "IB)" HS_RESOLVED_METHOD, FN_PTR(lookupMethodInPool)},
2846 {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(constantPoolRemapInstructionOperandFromCache)},
2847 {CC "resolveBootstrapMethod", CC "(" HS_CONSTANT_POOL "I)[" OBJECT, FN_PTR(resolveBootstrapMethod)},
2848 {CC "resolvePossiblyCachedConstantInPool", CC "(" HS_CONSTANT_POOL "I)" JAVACONSTANT, FN_PTR(resolvePossiblyCachedConstantInPool)},
2849 {CC "resolveTypeInPool", CC "(" HS_CONSTANT_POOL "I)" HS_RESOLVED_KLASS, FN_PTR(resolveTypeInPool)},
2850 {CC "resolveFieldInPool", CC "(" HS_CONSTANT_POOL "I" HS_RESOLVED_METHOD "B[I)" HS_RESOLVED_KLASS, FN_PTR(resolveFieldInPool)},
2851 {CC "resolveInvokeDynamicInPool", CC "(" HS_CONSTANT_POOL "I)V", FN_PTR(resolveInvokeDynamicInPool)},
2852 {CC "resolveInvokeHandleInPool", CC "(" HS_CONSTANT_POOL "I)V", FN_PTR(resolveInvokeHandleInPool)},
2853 {CC "isResolvedInvokeHandleInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(isResolvedInvokeHandleInPool)},
2854 {CC "resolveMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(resolveMethod)},
2855 {CC "getSignaturePolymorphicHolders", CC "()[" STRING, FN_PTR(getSignaturePolymorphicHolders)},
2856 {CC "getVtableIndexForInterfaceMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")I", FN_PTR(getVtableIndexForInterfaceMethod)},
2857 {CC "getClassInitializer", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(getClassInitializer)},
2858 {CC "hasFinalizableSubclass", CC "(" HS_RESOLVED_KLASS ")Z", FN_PTR(hasFinalizableSubclass)},
2859 {CC "getMaxCallTargetOffset", CC "(J)J", FN_PTR(getMaxCallTargetOffset)},
2860 {CC "asResolvedJavaMethod", CC "(" EXECUTABLE ")" HS_RESOLVED_METHOD, FN_PTR(asResolvedJavaMethod)},
2861 {CC "getResolvedJavaMethod", CC "(" OBJECTCONSTANT "J)" HS_RESOLVED_METHOD, FN_PTR(getResolvedJavaMethod)},
2862 {CC "getConstantPool", CC "(" METASPACE_OBJECT ")" HS_CONSTANT_POOL, FN_PTR(getConstantPool)},
2863 {CC "getResolvedJavaType0", CC "(Ljava/lang/Object;JZ)" HS_RESOLVED_KLASS, FN_PTR(getResolvedJavaType0)},
2864 {CC "readConfiguration", CC "()[" OBJECT, FN_PTR(readConfiguration)},
2865 {CC "installCode", CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE INSTALLED_CODE "J[B)I", FN_PTR(installCode)},
2866 {CC "resetCompilationStatistics", CC "()V", FN_PTR(resetCompilationStatistics)},
2867 {CC "disassembleCodeBlob", CC "(" INSTALLED_CODE ")" STRING, FN_PTR(disassembleCodeBlob)},
2868 {CC "executeHotSpotNmethod", CC "([" OBJECT HS_NMETHOD ")" OBJECT, FN_PTR(executeHotSpotNmethod)},
2869 {CC "getLineNumberTable", CC "(" HS_RESOLVED_METHOD ")[J", FN_PTR(getLineNumberTable)},
2870 {CC "getLocalVariableTableStart", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getLocalVariableTableStart)},
2871 {CC "getLocalVariableTableLength", CC "(" HS_RESOLVED_METHOD ")I", FN_PTR(getLocalVariableTableLength)},
2872 {CC "reprofile", CC "(" HS_RESOLVED_METHOD ")V", FN_PTR(reprofile)},
2873 {CC "invalidateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(invalidateHotSpotNmethod)},
2874 {CC "collectCounters", CC "()[J", FN_PTR(collectCounters)},
2875 {CC "getCountersSize", CC "()I", FN_PTR(getCountersSize)},
2876 {CC "setCountersSize", CC "(I)Z", FN_PTR(setCountersSize)},
2877 {CC "allocateCompileId", CC "(" HS_RESOLVED_METHOD "I)I", FN_PTR(allocateCompileId)},
2878 {CC "isMature", CC "(" METASPACE_METHOD_DATA ")Z", FN_PTR(isMature)},
2879 {CC "hasCompiledCodeForOSR", CC "(" HS_RESOLVED_METHOD "II)Z", FN_PTR(hasCompiledCodeForOSR)},
2880 {CC "getSymbol", CC "(J)" STRING, FN_PTR(getSymbol)},
2881 {CC "iterateFrames", CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT, FN_PTR(iterateFrames)},
2882 {CC "materializeVirtualObjects", CC "(" HS_STACK_FRAME_REF "Z)V", FN_PTR(materializeVirtualObjects)},
2883 {CC "shouldDebugNonSafepoints", CC "()Z", FN_PTR(shouldDebugNonSafepoints)},
2884 {CC "writeDebugOutput", CC "(JIZ)V", FN_PTR(writeDebugOutput)},
2885 {CC "flushDebugOutput", CC "()V", FN_PTR(flushDebugOutput)},
2886 {CC "methodDataProfileDataSize", CC "(JI)I", FN_PTR(methodDataProfileDataSize)},
2887 {CC "interpreterFrameSize", CC "(" BYTECODE_FRAME ")I", FN_PTR(interpreterFrameSize)},
2888 {CC "compileToBytecode", CC "(" OBJECTCONSTANT ")V", FN_PTR(compileToBytecode)},
2889 {CC "getFlagValue", CC "(" STRING ")" OBJECT, FN_PTR(getFlagValue)},
2890 {CC "getInterfaces", CC "(" HS_RESOLVED_KLASS ")[" HS_RESOLVED_KLASS, FN_PTR(getInterfaces)},
2891 {CC "getComponentType", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_TYPE, FN_PTR(getComponentType)},
2892 {CC "ensureInitialized", CC "(" HS_RESOLVED_KLASS ")V", FN_PTR(ensureInitialized)},
2893 {CC "ensureLinked", CC "(" HS_RESOLVED_KLASS ")V", FN_PTR(ensureLinked)},
2894 {CC "getIdentityHashCode", CC "(" OBJECTCONSTANT ")I", FN_PTR(getIdentityHashCode)},
2895 {CC "isInternedString", CC "(" OBJECTCONSTANT ")Z", FN_PTR(isInternedString)},
2896 {CC "unboxPrimitive", CC "(" OBJECTCONSTANT ")" OBJECT, FN_PTR(unboxPrimitive)},
2897 {CC "boxPrimitive", CC "(" OBJECT ")" OBJECTCONSTANT, FN_PTR(boxPrimitive)},
2898 {CC "getDeclaredConstructors", CC "(" HS_RESOLVED_KLASS ")[" RESOLVED_METHOD, FN_PTR(getDeclaredConstructors)},
2899 {CC "getDeclaredMethods", CC "(" HS_RESOLVED_KLASS ")[" RESOLVED_METHOD, FN_PTR(getDeclaredMethods)},
2900 {CC "readFieldValue", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_KLASS "JLjdk/vm/ci/meta/JavaKind;)" JAVACONSTANT, FN_PTR(readFieldValue)},
2901 {CC "readFieldValue", CC "(" OBJECTCONSTANT HS_RESOLVED_KLASS "JLjdk/vm/ci/meta/JavaKind;)" JAVACONSTANT, FN_PTR(readFieldValue)},
2902 {CC "isInstance", CC "(" HS_RESOLVED_KLASS OBJECTCONSTANT ")Z", FN_PTR(isInstance)},
2903 {CC "isAssignableFrom", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_KLASS ")Z", FN_PTR(isAssignableFrom)},
2904 {CC "isTrustedForIntrinsics", CC "(" HS_RESOLVED_KLASS ")Z", FN_PTR(isTrustedForIntrinsics)},
2905 {CC "asJavaType", CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE, FN_PTR(asJavaType)},
2906 {CC "asString", CC "(" OBJECTCONSTANT ")" STRING, FN_PTR(asString)},
2907 {CC "equals", CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z", FN_PTR(equals)},
2908 {CC "getJavaMirror", CC "(" HS_RESOLVED_TYPE ")" OBJECTCONSTANT, FN_PTR(getJavaMirror)},
2909 {CC "getArrayLength", CC "(" OBJECTCONSTANT ")I", FN_PTR(getArrayLength)},
2910 {CC "readArrayElement", CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;", FN_PTR(readArrayElement)},
2911 {CC "arrayBaseOffset", CC "(Ljdk/vm/ci/meta/JavaKind;)I", FN_PTR(arrayBaseOffset)},
2912 {CC "arrayIndexScale", CC "(Ljdk/vm/ci/meta/JavaKind;)I", FN_PTR(arrayIndexScale)},
2913 {CC "deleteGlobalHandle", CC "(J)V", FN_PTR(deleteGlobalHandle)},
2914 {CC "registerNativeMethods", CC "(" CLASS ")[J", FN_PTR(registerNativeMethods)},
2915 {CC "isCurrentThreadAttached", CC "()Z", FN_PTR(isCurrentThreadAttached)},
2916 {CC "getCurrentJavaThread", CC "()J", FN_PTR(getCurrentJavaThread)},
2917 {CC "attachCurrentThread", CC "([BZ[J)Z", FN_PTR(attachCurrentThread)},
2918 {CC "detachCurrentThread", CC "(Z)Z", FN_PTR(detachCurrentThread)},
2919 {CC "translate", CC "(" OBJECT "Z)J", FN_PTR(translate)},
2920 {CC "unhand", CC "(J)" OBJECT, FN_PTR(unhand)},
2921 {CC "updateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(updateHotSpotNmethod)},
2922 {CC "getCode", CC "(" HS_INSTALLED_CODE ")[B", FN_PTR(getCode)},
2923 {CC "asReflectionExecutable", CC "(" HS_RESOLVED_METHOD ")" REFLECTION_EXECUTABLE, FN_PTR(asReflectionExecutable)},
2924 {CC "asReflectionField", CC "(" HS_RESOLVED_KLASS "I)" REFLECTION_FIELD, FN_PTR(asReflectionField)},
2925 {CC "getFailedSpeculations", CC "(J[[B)[[B", FN_PTR(getFailedSpeculations)},
2926 {CC "getFailedSpeculationsAddress", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getFailedSpeculationsAddress)},
2927 {CC "releaseFailedSpeculations", CC "(J)V", FN_PTR(releaseFailedSpeculations)},
2928 {CC "addFailedSpeculation", CC "(J[B)Z", FN_PTR(addFailedSpeculation)},
2929 {CC "callSystemExit", CC "(I)V", FN_PTR(callSystemExit)},
2930 {CC "ticksNow", CC "()J", FN_PTR(ticksNow)},
2931 {CC "getThreadLocalObject", CC "(I)" OBJECT, FN_PTR(getThreadLocalObject)},
2932 {CC "setThreadLocalObject", CC "(I" OBJECT ")V", FN_PTR(setThreadLocalObject)},
2933 {CC "getThreadLocalLong", CC "(I)J", FN_PTR(getThreadLocalLong)},
2934 {CC "setThreadLocalLong", CC "(IJ)V", FN_PTR(setThreadLocalLong)},
2935 {CC "registerCompilerPhase", CC "(" STRING ")I", FN_PTR(registerCompilerPhase)},
2936 {CC "notifyCompilerPhaseEvent", CC "(JIII)V", FN_PTR(notifyCompilerPhaseEvent)},
2937 {CC "notifyCompilerInliningEvent", CC "(I" HS_RESOLVED_METHOD HS_RESOLVED_METHOD "ZLjava/lang/String;I)V", FN_PTR(notifyCompilerInliningEvent)},
2938 };
2939
2940 int CompilerToVM::methods_count() {
2941 return sizeof(methods) / sizeof(JNINativeMethod);
2942 }