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