1 /*
2 * Copyright (c) 2011, 2016, 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/javaClasses.inline.hpp"
26 #include "code/codeCache.hpp"
27 #include "code/scopeDesc.hpp"
28 #include "interpreter/linkResolver.hpp"
29 #include "memory/oopFactory.hpp"
30 #include "memory/resourceArea.hpp"
31 #include "oops/generateOopMap.hpp"
32 #include "oops/fieldStreams.hpp"
33 #include "oops/oop.inline.hpp"
34 #include "oops/objArrayOop.inline.hpp"
35 #include "runtime/fieldDescriptor.hpp"
36 #include "runtime/javaCalls.hpp"
37 #include "jvmci/jvmciRuntime.hpp"
38 #include "compiler/abstractCompiler.hpp"
39 #include "compiler/compileBroker.hpp"
40 #include "compiler/compilerOracle.hpp"
41 #include "compiler/disassembler.hpp"
42 #include "compiler/oopMap.hpp"
43 #include "jvmci/jvmciCompilerToVM.hpp"
44 #include "jvmci/jvmciCompiler.hpp"
45 #include "jvmci/jvmciEnv.hpp"
46 #include "jvmci/jvmciJavaClasses.hpp"
47 #include "jvmci/jvmciCodeInstaller.hpp"
48 #include "jvmci/vmStructs_jvmci.hpp"
49 #include "gc/g1/heapRegion.hpp"
50 #include "runtime/javaCalls.hpp"
51 #include "runtime/deoptimization.hpp"
52 #include "runtime/timerTrace.hpp"
53 #include "runtime/vframe.hpp"
54 #include "runtime/vframe_hp.hpp"
55 #include "runtime/vmStructs.hpp"
56
57
58 // Entry to native method implementation that transitions current thread to '_thread_in_vm'.
59 #define C2V_VMENTRY(result_type, name, signature) \
60 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
61 TRACE_jvmci_1("CompilerToVM::" #name); \
62 TRACE_CALL(result_type, jvmci_ ## name signature) \
63 JVMCI_VM_ENTRY_MARK; \
64
65 #define C2V_END }
66
67 oop CompilerToVM::get_jvmci_method(const methodHandle& method, TRAPS) {
68 if (method() != NULL) {
69 JavaValue result(T_OBJECT);
70 JavaCallArguments args;
71 args.push_long((jlong) (address) method());
72 JavaCalls::call_static(&result, SystemDictionary::HotSpotResolvedJavaMethodImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::method_fromMetaspace_signature(), &args, CHECK_NULL);
73
74 return (oop)result.get_jobject();
75 }
76 return NULL;
77 }
78
79 oop CompilerToVM::get_jvmci_type(KlassHandle klass, TRAPS) {
80 if (klass() != NULL) {
81 JavaValue result(T_OBJECT);
82 JavaCallArguments args;
83 args.push_oop(klass->java_mirror());
84 JavaCalls::call_static(&result, SystemDictionary::HotSpotResolvedObjectTypeImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::klass_fromMetaspace_signature(), &args, CHECK_NULL);
85
86 return (oop)result.get_jobject();
87 }
88 return NULL;
89 }
90
91 int CompilerToVM::Data::Klass_vtable_start_offset;
92 int CompilerToVM::Data::Klass_vtable_length_offset;
93
94 int CompilerToVM::Data::Method_extra_stack_entries;
95
96 address CompilerToVM::Data::SharedRuntime_ic_miss_stub;
97 address CompilerToVM::Data::SharedRuntime_handle_wrong_method_stub;
98 address CompilerToVM::Data::SharedRuntime_deopt_blob_unpack;
99 address CompilerToVM::Data::SharedRuntime_deopt_blob_uncommon_trap;
100
101 size_t CompilerToVM::Data::ThreadLocalAllocBuffer_alignment_reserve;
102
103 CollectedHeap* CompilerToVM::Data::Universe_collectedHeap;
104 int CompilerToVM::Data::Universe_base_vtable_size;
105 address CompilerToVM::Data::Universe_narrow_oop_base;
106 int CompilerToVM::Data::Universe_narrow_oop_shift;
107 address CompilerToVM::Data::Universe_narrow_klass_base;
108 int CompilerToVM::Data::Universe_narrow_klass_shift;
109 void* CompilerToVM::Data::Universe_non_oop_bits;
110 uintptr_t CompilerToVM::Data::Universe_verify_oop_mask;
111 uintptr_t CompilerToVM::Data::Universe_verify_oop_bits;
112
113 bool CompilerToVM::Data::_supports_inline_contig_alloc;
114 HeapWord** CompilerToVM::Data::_heap_end_addr;
115 HeapWord** CompilerToVM::Data::_heap_top_addr;
116 int CompilerToVM::Data::_max_oop_map_stack_offset;
117
118 jbyte* CompilerToVM::Data::cardtable_start_address;
119 int CompilerToVM::Data::cardtable_shift;
120
121 int CompilerToVM::Data::vm_page_size;
122
123 address CompilerToVM::Data::dsin;
124 address CompilerToVM::Data::dcos;
125 address CompilerToVM::Data::dtan;
126 address CompilerToVM::Data::dexp;
127 address CompilerToVM::Data::dlog;
128 address CompilerToVM::Data::dlog10;
129 address CompilerToVM::Data::dpow;
130
131 void CompilerToVM::Data::initialize() {
132 Klass_vtable_start_offset = in_bytes(Klass::vtable_start_offset());
133 Klass_vtable_length_offset = in_bytes(Klass::vtable_length_offset());
134
135 Method_extra_stack_entries = Method::extra_stack_entries();
136
137 SharedRuntime_ic_miss_stub = SharedRuntime::get_ic_miss_stub();
138 SharedRuntime_handle_wrong_method_stub = SharedRuntime::get_handle_wrong_method_stub();
139 SharedRuntime_deopt_blob_unpack = SharedRuntime::deopt_blob()->unpack();
140 SharedRuntime_deopt_blob_uncommon_trap = SharedRuntime::deopt_blob()->uncommon_trap();
141
142 ThreadLocalAllocBuffer_alignment_reserve = ThreadLocalAllocBuffer::alignment_reserve();
143
144 Universe_collectedHeap = Universe::heap();
145 Universe_base_vtable_size = Universe::base_vtable_size();
146 Universe_narrow_oop_base = Universe::narrow_oop_base();
147 Universe_narrow_oop_shift = Universe::narrow_oop_shift();
148 Universe_narrow_klass_base = Universe::narrow_klass_base();
149 Universe_narrow_klass_shift = Universe::narrow_klass_shift();
150 Universe_non_oop_bits = Universe::non_oop_word();
151 Universe_verify_oop_mask = Universe::verify_oop_mask();
152 Universe_verify_oop_bits = Universe::verify_oop_bits();
153
154 _supports_inline_contig_alloc = Universe::heap()->supports_inline_contig_alloc();
155 _heap_end_addr = _supports_inline_contig_alloc ? Universe::heap()->end_addr() : (HeapWord**) -1;
156 _heap_top_addr = _supports_inline_contig_alloc ? Universe::heap()->top_addr() : (HeapWord**) -1;
157
158 _max_oop_map_stack_offset = (OopMapValue::register_mask - VMRegImpl::stack2reg(0)->value()) * VMRegImpl::stack_slot_size;
159 int max_oop_map_stack_index = _max_oop_map_stack_offset / VMRegImpl::stack_slot_size;
160 assert(OopMapValue::legal_vm_reg_name(VMRegImpl::stack2reg(max_oop_map_stack_index)), "should be valid");
161 assert(!OopMapValue::legal_vm_reg_name(VMRegImpl::stack2reg(max_oop_map_stack_index + 1)), "should be invalid");
162
163 BarrierSet* bs = Universe::heap()->barrier_set();
164 switch (bs->kind()) {
165 case BarrierSet::CardTableModRef:
166 case BarrierSet::CardTableForRS:
167 case BarrierSet::CardTableExtension:
168 case BarrierSet::G1SATBCT:
169 case BarrierSet::G1SATBCTLogging: {
170 jbyte* base = barrier_set_cast<CardTableModRefBS>(bs)->byte_map_base;
171 assert(base != 0, "unexpected byte_map_base");
172 cardtable_start_address = base;
173 cardtable_shift = CardTableModRefBS::card_shift;
174 break;
175 }
176 case BarrierSet::ModRef:
177 cardtable_start_address = 0;
178 cardtable_shift = 0;
179 // No post barriers
180 break;
181 default:
182 ShouldNotReachHere();
183 break;
184 }
185
186 vm_page_size = os::vm_page_size();
187
188 #define SET_TRIGFUNC(name) \
189 if (StubRoutines::name() != NULL) { \
190 name = StubRoutines::name(); \
191 } else { \
192 name = CAST_FROM_FN_PTR(address, SharedRuntime::name); \
193 }
194
195 SET_TRIGFUNC(dsin);
196 SET_TRIGFUNC(dcos);
197 SET_TRIGFUNC(dtan);
198 SET_TRIGFUNC(dexp);
199 SET_TRIGFUNC(dlog10);
200 SET_TRIGFUNC(dlog);
201 SET_TRIGFUNC(dpow);
202
203 #undef SET_TRIGFUNC
204 }
205
206 objArrayHandle CompilerToVM::initialize_intrinsics(TRAPS) {
207 objArrayHandle vmIntrinsics = oopFactory::new_objArray(VMIntrinsicMethod::klass(), (vmIntrinsics::ID_LIMIT - 1), CHECK_(objArrayHandle()));
208 int index = 0;
209 // The intrinsics for a class are usually adjacent to each other.
210 // When they are, the string for the class name can be reused.
211 vmSymbols::SID kls_sid = vmSymbols::NO_SID;
212 Handle kls_str;
213 #define SID_ENUM(n) vmSymbols::VM_SYMBOL_ENUM_NAME(n)
214 #define VM_SYMBOL_TO_STRING(s) \
215 java_lang_String::create_from_symbol(vmSymbols::symbol_at(SID_ENUM(s)), CHECK_(objArrayHandle()))
216 #define VM_INTRINSIC_INFO(id, kls, name, sig, ignore_fcode) { \
217 instanceHandle vmIntrinsicMethod = InstanceKlass::cast(VMIntrinsicMethod::klass())->allocate_instance_handle(CHECK_(objArrayHandle())); \
218 if (kls_sid != SID_ENUM(kls)) { \
219 kls_str = VM_SYMBOL_TO_STRING(kls); \
220 kls_sid = SID_ENUM(kls); \
221 } \
222 Handle name_str = VM_SYMBOL_TO_STRING(name); \
223 Handle sig_str = VM_SYMBOL_TO_STRING(sig); \
224 VMIntrinsicMethod::set_declaringClass(vmIntrinsicMethod, kls_str()); \
225 VMIntrinsicMethod::set_name(vmIntrinsicMethod, name_str()); \
226 VMIntrinsicMethod::set_descriptor(vmIntrinsicMethod, sig_str()); \
227 VMIntrinsicMethod::set_id(vmIntrinsicMethod, vmIntrinsics::id); \
228 vmIntrinsics->obj_at_put(index++, vmIntrinsicMethod()); \
229 }
230
231 VM_INTRINSICS_DO(VM_INTRINSIC_INFO, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_ALIAS_IGNORE)
232 #undef SID_ENUM
233 #undef VM_SYMBOL_TO_STRING
234 #undef VM_INTRINSIC_INFO
235 assert(index == vmIntrinsics::ID_LIMIT - 1, "must be");
236
237 return vmIntrinsics;
238 }
239
240 C2V_VMENTRY(jobjectArray, readConfiguration, (JNIEnv *env))
241 #define BOXED_LONG(name, value) oop name; do { jvalue p; p.j = (jlong) (value); name = java_lang_boxing_object::create(T_LONG, &p, CHECK_NULL);} while(0)
242 #define BOXED_DOUBLE(name, value) oop name; do { jvalue p; p.d = (jdouble) (value); name = java_lang_boxing_object::create(T_DOUBLE, &p, CHECK_NULL);} while(0)
243 ResourceMark rm;
244 HandleMark hm;
245
246 CompilerToVM::Data::initialize();
247
248 VMField::klass()->initialize(CHECK_NULL);
249 VMFlag::klass()->initialize(CHECK_NULL);
250 VMIntrinsicMethod::klass()->initialize(CHECK_NULL);
251
252 int len = JVMCIVMStructs::localHotSpotVMStructs_count();
253 objArrayHandle vmFields = oopFactory::new_objArray(VMField::klass(), len, CHECK_NULL);
254 for (int i = 0; i < len ; i++) {
255 VMStructEntry vmField = JVMCIVMStructs::localHotSpotVMStructs[i];
256 instanceHandle vmFieldObj = InstanceKlass::cast(VMField::klass())->allocate_instance_handle(CHECK_NULL);
257 size_t name_buf_len = strlen(vmField.typeName) + strlen(vmField.fieldName) + 2 /* "::" */;
258 char* name_buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, name_buf_len + 1);
259 sprintf(name_buf, "%s::%s", vmField.typeName, vmField.fieldName);
260 Handle name = java_lang_String::create_from_str(name_buf, CHECK_NULL);
261 Handle type = java_lang_String::create_from_str(vmField.typeString, CHECK_NULL);
262 VMField::set_name(vmFieldObj, name());
263 VMField::set_type(vmFieldObj, type());
264 VMField::set_offset(vmFieldObj, vmField.offset);
265 VMField::set_address(vmFieldObj, (jlong) vmField.address);
266 if (vmField.isStatic) {
267 if (strcmp(vmField.typeString, "bool") == 0) {
268 BOXED_LONG(value, *(jbyte*) vmField.address);
269 VMField::set_value(vmFieldObj, value);
270 } else if (strcmp(vmField.typeString, "int") == 0 ||
271 strcmp(vmField.typeString, "jint") == 0) {
272 BOXED_LONG(value, *(jint*) vmField.address);
273 VMField::set_value(vmFieldObj, value);
274 } else if (strcmp(vmField.typeString, "uint64_t") == 0) {
275 BOXED_LONG(value, *(uint64_t*) vmField.address);
276 VMField::set_value(vmFieldObj, value);
277 } else if (strcmp(vmField.typeString, "address") == 0 ||
278 strcmp(vmField.typeString, "intptr_t") == 0 ||
279 strcmp(vmField.typeString, "uintptr_t") == 0 ||
280 strcmp(vmField.typeString, "size_t") == 0 ||
281 // All foo* types are addresses.
282 vmField.typeString[strlen(vmField.typeString) - 1] == '*') {
283 BOXED_LONG(value, *((address*) vmField.address));
284 VMField::set_value(vmFieldObj, value);
285 } else {
286 JVMCI_ERROR_NULL("VM field %s has unsupported type %s", name_buf, vmField.typeString);
287 }
288 }
289 vmFields->obj_at_put(i, vmFieldObj());
290 }
291
292 len = JVMCIVMStructs::localHotSpotVMTypes_count();
293 objArrayHandle vmTypes = oopFactory::new_objArray(SystemDictionary::Object_klass(), len * 2, CHECK_NULL);
294 for (int i = 0; i < len ; i++) {
295 VMTypeEntry vmType = JVMCIVMStructs::localHotSpotVMTypes[i];
296 Handle name = java_lang_String::create_from_str(vmType.typeName, CHECK_NULL);
297 BOXED_LONG(size, vmType.size);
298 vmTypes->obj_at_put(i * 2, name());
299 vmTypes->obj_at_put(i * 2 + 1, size);
300 }
301
302 int ints_len = JVMCIVMStructs::localHotSpotVMIntConstants_count();
303 int longs_len = JVMCIVMStructs::localHotSpotVMLongConstants_count();
304 len = ints_len + longs_len;
305 objArrayHandle vmConstants = oopFactory::new_objArray(SystemDictionary::Object_klass(), len * 2, CHECK_NULL);
306 int insert = 0;
307 for (int i = 0; i < ints_len ; i++) {
308 VMIntConstantEntry c = JVMCIVMStructs::localHotSpotVMIntConstants[i];
309 Handle name = java_lang_String::create_from_str(c.name, CHECK_NULL);
310 BOXED_LONG(value, c.value);
311 vmConstants->obj_at_put(insert++, name());
312 vmConstants->obj_at_put(insert++, value);
313 }
314 for (int i = 0; i < longs_len ; i++) {
315 VMLongConstantEntry c = JVMCIVMStructs::localHotSpotVMLongConstants[i];
316 Handle name = java_lang_String::create_from_str(c.name, CHECK_NULL);
317 BOXED_LONG(value, c.value);
318 vmConstants->obj_at_put(insert++, name());
319 vmConstants->obj_at_put(insert++, value);
320 }
321 assert(insert == len * 2, "must be");
322
323 len = JVMCIVMStructs::localHotSpotVMAddresses_count();
324 objArrayHandle vmAddresses = oopFactory::new_objArray(SystemDictionary::Object_klass(), len * 2, CHECK_NULL);
325 for (int i = 0; i < len ; i++) {
326 VMAddressEntry a = JVMCIVMStructs::localHotSpotVMAddresses[i];
327 Handle name = java_lang_String::create_from_str(a.name, CHECK_NULL);
328 BOXED_LONG(value, a.value);
329 vmAddresses->obj_at_put(i * 2, name());
330 vmAddresses->obj_at_put(i * 2 + 1, value);
331 }
332
333 // The last entry is the null entry.
334 len = (int) Flag::numFlags - 1;
335 objArrayHandle vmFlags = oopFactory::new_objArray(VMFlag::klass(), len, CHECK_NULL);
336 for (int i = 0; i < len; i++) {
337 Flag* flag = &Flag::flags[i];
338 instanceHandle vmFlagObj = InstanceKlass::cast(VMFlag::klass())->allocate_instance_handle(CHECK_NULL);
339 Handle name = java_lang_String::create_from_str(flag->_name, CHECK_NULL);
340 Handle type = java_lang_String::create_from_str(flag->_type, CHECK_NULL);
341 VMFlag::set_name(vmFlagObj, name());
342 VMFlag::set_type(vmFlagObj, type());
343 if (flag->is_bool()) {
344 BOXED_LONG(value, flag->get_bool());
345 VMFlag::set_value(vmFlagObj, value);
346 } else if (flag->is_ccstr()) {
347 Handle value = java_lang_String::create_from_str(flag->get_ccstr(), CHECK_NULL);
348 VMFlag::set_value(vmFlagObj, value());
349 } else if (flag->is_int()) {
350 BOXED_LONG(value, flag->get_int());
351 VMFlag::set_value(vmFlagObj, value);
352 } else if (flag->is_intx()) {
353 BOXED_LONG(value, flag->get_intx());
354 VMFlag::set_value(vmFlagObj, value);
355 } else if (flag->is_uint()) {
356 BOXED_LONG(value, flag->get_uint());
357 VMFlag::set_value(vmFlagObj, value);
358 } else if (flag->is_uint64_t()) {
359 BOXED_LONG(value, flag->get_uint64_t());
360 VMFlag::set_value(vmFlagObj, value);
361 } else if (flag->is_uintx()) {
362 BOXED_LONG(value, flag->get_uintx());
363 VMFlag::set_value(vmFlagObj, value);
364 } else if (flag->is_double()) {
365 BOXED_DOUBLE(value, flag->get_double());
366 VMFlag::set_value(vmFlagObj, value);
367 } else if (flag->is_size_t()) {
368 BOXED_LONG(value, flag->get_size_t());
369 VMFlag::set_value(vmFlagObj, value);
370 } else {
371 JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->_name, flag->_type);
372 }
373 vmFlags->obj_at_put(i, vmFlagObj());
374 }
375
376 objArrayHandle vmIntrinsics = CompilerToVM::initialize_intrinsics(CHECK_NULL);
377
378 objArrayOop data = oopFactory::new_objArray(SystemDictionary::Object_klass(), 6, CHECK_NULL);
379 data->obj_at_put(0, vmFields());
380 data->obj_at_put(1, vmTypes());
381 data->obj_at_put(2, vmConstants());
382 data->obj_at_put(3, vmAddresses());
383 data->obj_at_put(4, vmFlags());
384 data->obj_at_put(5, vmIntrinsics());
385
386 return (jobjectArray) JNIHandles::make_local(THREAD, data);
387 #undef BOXED_LONG
388 #undef BOXED_DOUBLE
389 C2V_END
390
391 C2V_VMENTRY(jbyteArray, getBytecode, (JNIEnv *, jobject, jobject jvmci_method))
392 methodHandle method = CompilerToVM::asMethod(jvmci_method);
393 ResourceMark rm;
394
395 int code_size = method->code_size();
396 typeArrayOop reconstituted_code = oopFactory::new_byteArray(code_size, CHECK_NULL);
397
398 guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
399 // iterate over all bytecodes and replace non-Java bytecodes
400
401 for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
402 Bytecodes::Code code = s.code();
403 Bytecodes::Code raw_code = s.raw_code();
404 int bci = s.bci();
405 int len = s.instruction_size();
406
407 // Restore original byte code.
408 reconstituted_code->byte_at_put(bci, (jbyte) (s.is_wide()? Bytecodes::_wide : code));
409 if (len > 1) {
410 memcpy(reconstituted_code->byte_at_addr(bci + 1), s.bcp()+1, len-1);
411 }
412
413 if (len > 1) {
414 // Restore the big-endian constant pool indexes.
415 // Cf. Rewriter::scan_method
416 switch (code) {
417 case Bytecodes::_getstatic:
418 case Bytecodes::_putstatic:
419 case Bytecodes::_getfield:
420 case Bytecodes::_putfield:
421 case Bytecodes::_invokevirtual:
422 case Bytecodes::_invokespecial:
423 case Bytecodes::_invokestatic:
424 case Bytecodes::_invokeinterface:
425 case Bytecodes::_invokehandle: {
426 int cp_index = Bytes::get_native_u2((address) reconstituted_code->byte_at_addr(bci + 1));
427 Bytes::put_Java_u2((address) reconstituted_code->byte_at_addr(bci + 1), (u2) cp_index);
428 break;
429 }
430
431 case Bytecodes::_invokedynamic:
432 int cp_index = Bytes::get_native_u4((address) reconstituted_code->byte_at_addr(bci + 1));
433 Bytes::put_Java_u4((address) reconstituted_code->byte_at_addr(bci + 1), (u4) cp_index);
434 break;
435 }
436
437 // Not all ldc byte code are rewritten.
438 switch (raw_code) {
439 case Bytecodes::_fast_aldc: {
440 int cpc_index = reconstituted_code->byte_at(bci + 1) & 0xff;
441 int cp_index = method->constants()->object_to_cp_index(cpc_index);
442 assert(cp_index < method->constants()->length(), "sanity check");
443 reconstituted_code->byte_at_put(bci + 1, (jbyte) cp_index);
444 break;
445 }
446
447 case Bytecodes::_fast_aldc_w: {
448 int cpc_index = Bytes::get_native_u2((address) reconstituted_code->byte_at_addr(bci + 1));
449 int cp_index = method->constants()->object_to_cp_index(cpc_index);
450 assert(cp_index < method->constants()->length(), "sanity check");
451 Bytes::put_Java_u2((address) reconstituted_code->byte_at_addr(bci + 1), (u2) cp_index);
452 break;
453 }
454 }
455 }
456 }
457
458 return (jbyteArray) JNIHandles::make_local(THREAD, reconstituted_code);
459 C2V_END
460
461 C2V_VMENTRY(jint, getExceptionTableLength, (JNIEnv *, jobject, jobject jvmci_method))
462 ResourceMark rm;
463 methodHandle method = CompilerToVM::asMethod(jvmci_method);
464 return method->exception_table_length();
465 C2V_END
466
467 C2V_VMENTRY(jlong, getExceptionTableStart, (JNIEnv *, jobject, jobject jvmci_method))
468 ResourceMark rm;
469 methodHandle method = CompilerToVM::asMethod(jvmci_method);
470 if (method->exception_table_length() == 0) {
471 return 0L;
472 }
473 return (jlong) (address) method->exception_table_start();
474 C2V_END
475
476 C2V_VMENTRY(jobject, getResolvedJavaMethodAtSlot, (JNIEnv *, jobject, jclass holder_handle, jint slot))
477 oop java_class = JNIHandles::resolve(holder_handle);
478 Klass* holder = java_lang_Class::as_Klass(java_class);
479 methodHandle method = InstanceKlass::cast(holder)->method_with_idnum(slot);
480 oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
481 return JNIHandles::make_local(THREAD, result);
482 }
483
484 C2V_VMENTRY(jobject, getResolvedJavaMethod, (JNIEnv *, jobject, jobject base, jlong offset))
485 methodHandle method;
486 oop base_object = JNIHandles::resolve(base);
487 if (base_object == NULL) {
488 method = *((Method**)(offset));
489 } else if (base_object->is_a(SystemDictionary::MemberName_klass())) {
490 method = (Method*) (intptr_t) base_object->long_field(offset);
491 } else if (base_object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
492 method = *((Method**)(HotSpotResolvedJavaMethodImpl::metaspaceMethod(base_object) + offset));
493 } else {
494 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
495 err_msg("Unexpected type: %s", base_object->klass()->external_name()));
496 }
497 assert (method.is_null() || method->is_method(), "invalid read");
498 oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
499 return JNIHandles::make_local(THREAD, result);
500 }
501
502 C2V_VMENTRY(jobject, getConstantPool, (JNIEnv *, jobject, jobject object_handle))
503 constantPoolHandle cp;
504 oop object = JNIHandles::resolve(object_handle);
505 if (object == NULL) {
506 THROW_0(vmSymbols::java_lang_NullPointerException());
507 }
508 if (object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
509 cp = CompilerToVM::asMethod(object)->constMethod()->constants();
510 } else if (object->is_a(SystemDictionary::HotSpotResolvedObjectTypeImpl_klass())) {
511 cp = InstanceKlass::cast(CompilerToVM::asKlass(object))->constants();
512 } else {
513 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
514 err_msg("Unexpected type: %s", object->klass()->external_name()));
515 }
516 assert(!cp.is_null(), "npe");
517 JavaValue method_result(T_OBJECT);
518 JavaCallArguments args;
519 args.push_long((jlong) (address) cp());
520 JavaCalls::call_static(&method_result, SystemDictionary::HotSpotConstantPool_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::constantPool_fromMetaspace_signature(), &args, CHECK_NULL);
521 return JNIHandles::make_local(THREAD, (oop)method_result.get_jobject());
522 }
523
524 C2V_VMENTRY(jobject, getResolvedJavaType, (JNIEnv *, jobject, jobject base, jlong offset, jboolean compressed))
525 KlassHandle klass;
526 oop base_object = JNIHandles::resolve(base);
527 jlong base_address = 0;
528 if (base_object != NULL && offset == oopDesc::klass_offset_in_bytes()) {
529 klass = base_object->klass();
530 } else if (!compressed) {
531 if (base_object != NULL) {
532 if (base_object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
533 base_address = HotSpotResolvedJavaMethodImpl::metaspaceMethod(base_object);
534 } else if (base_object->is_a(SystemDictionary::HotSpotConstantPool_klass())) {
535 base_address = HotSpotConstantPool::metaspaceConstantPool(base_object);
536 } else if (base_object->is_a(SystemDictionary::HotSpotResolvedObjectTypeImpl_klass())) {
537 base_address = (jlong) CompilerToVM::asKlass(base_object);
538 } else if (base_object->is_a(SystemDictionary::Class_klass())) {
539 base_address = (jlong) (address) base_object;
540 } else {
541 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
542 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", base_object->klass()->external_name(), offset, compressed ? "true" : "false"));
543 }
544 }
545 klass = *((Klass**) (intptr_t) (base_address + offset));
546 } else {
547 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
548 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", base_object->klass()->external_name(), offset, compressed ? "true" : "false"));
549 }
550 assert (klass.is_null() || klass->is_klass(), "invalid read");
551 oop result = CompilerToVM::get_jvmci_type(klass, CHECK_NULL);
552 return JNIHandles::make_local(THREAD, result);
553 }
554
555 C2V_VMENTRY(jobject, findUniqueConcreteMethod, (JNIEnv *, jobject, jobject jvmci_type, jobject jvmci_method))
556 ResourceMark rm;
557 methodHandle method = CompilerToVM::asMethod(jvmci_method);
558 KlassHandle holder = CompilerToVM::asKlass(jvmci_type);
559 if (holder->is_interface()) {
560 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Interface %s should be handled in Java code", holder->external_name()));
561 }
562
563 methodHandle ucm;
564 {
565 MutexLocker locker(Compile_lock);
566 ucm = Dependencies::find_unique_concrete_method(holder(), method());
567 }
568 oop result = CompilerToVM::get_jvmci_method(ucm, CHECK_NULL);
569 return JNIHandles::make_local(THREAD, result);
570 C2V_END
571
572 C2V_VMENTRY(jobject, getImplementor, (JNIEnv *, jobject, jobject jvmci_type))
573 InstanceKlass* klass = (InstanceKlass*) CompilerToVM::asKlass(jvmci_type);
574 oop implementor = CompilerToVM::get_jvmci_type(klass->implementor(), CHECK_NULL);
575 return JNIHandles::make_local(THREAD, implementor);
576 C2V_END
577
578 C2V_VMENTRY(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv *, jobject, jobject jvmci_method))
579 methodHandle method = CompilerToVM::asMethod(jvmci_method);
580 return method->is_ignored_by_security_stack_walk();
581 C2V_END
582
583 C2V_VMENTRY(jboolean, canInlineMethod,(JNIEnv *, jobject, jobject jvmci_method))
584 methodHandle method = CompilerToVM::asMethod(jvmci_method);
585 // In hosted mode ignore the not_compilable flags since they are never set by
586 // the JVMCI compiler.
587 bool is_compilable = UseJVMCICompiler ? !method->is_not_compilable(CompLevel_full_optimization) : true;
588 return is_compilable && !CompilerOracle::should_not_inline(method) && !method->dont_inline();
589 C2V_END
590
591 C2V_VMENTRY(jboolean, shouldInlineMethod,(JNIEnv *, jobject, jobject jvmci_method))
592 methodHandle method = CompilerToVM::asMethod(jvmci_method);
593 return CompilerOracle::should_inline(method) || method->force_inline();
594 C2V_END
595
596 C2V_VMENTRY(jobject, lookupType, (JNIEnv*, jobject, jstring jname, jclass accessing_class, jboolean resolve))
597 ResourceMark rm;
598 Handle name = JNIHandles::resolve(jname);
599 Symbol* class_name = java_lang_String::as_symbol(name, CHECK_0);
600 if (java_lang_String::length(name()) <= 1) {
601 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Primitive type %s should be handled in Java code", class_name->as_C_string()));
602 }
603
604 Klass* resolved_klass = NULL;
605 Handle class_loader;
606 Handle protection_domain;
607 if (JNIHandles::resolve(accessing_class) == NULL) {
608 THROW_0(vmSymbols::java_lang_NullPointerException());
609 }
610 Klass* accessing_klass = java_lang_Class::as_Klass(JNIHandles::resolve(accessing_class));
611 class_loader = accessing_klass->class_loader();
612 protection_domain = accessing_klass->protection_domain();
613
614 if (resolve) {
615 resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_0);
616 } else {
617 if (class_name->byte_at(0) == 'L' &&
618 class_name->byte_at(class_name->utf8_length()-1) == ';') {
619 // This is a name from a signature. Strip off the trimmings.
620 // Call recursive to keep scope of strippedsym.
621 TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1,
622 class_name->utf8_length()-2,
623 CHECK_0);
624 resolved_klass = SystemDictionary::find(strippedsym, class_loader, protection_domain, CHECK_0);
625 } else if (FieldType::is_array(class_name)) {
626 FieldArrayInfo fd;
627 // dimension and object_key in FieldArrayInfo are assigned as a side-effect
628 // of this call
629 BasicType t = FieldType::get_array_info(class_name, fd, CHECK_0);
630 if (t == T_OBJECT) {
631 TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1+fd.dimension(),
632 class_name->utf8_length()-2-fd.dimension(),
633 CHECK_0);
634 // naked oop "k" is OK here -- we assign back into it
635 resolved_klass = SystemDictionary::find(strippedsym,
636 class_loader,
637 protection_domain,
638 CHECK_0);
639 if (resolved_klass != NULL) {
640 resolved_klass = resolved_klass->array_klass(fd.dimension(), CHECK_0);
641 }
642 } else {
643 resolved_klass = Universe::typeArrayKlassObj(t);
644 resolved_klass = TypeArrayKlass::cast(resolved_klass)->array_klass(fd.dimension(), CHECK_0);
645 }
646 }
647 }
648 Handle result = CompilerToVM::get_jvmci_type(resolved_klass, CHECK_NULL);
649 return JNIHandles::make_local(THREAD, result());
650 C2V_END
651
652 C2V_VMENTRY(jobject, resolveConstantInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
653 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
654 oop result = cp->resolve_constant_at(index, CHECK_NULL);
655 return JNIHandles::make_local(THREAD, result);
656 C2V_END
657
658 C2V_VMENTRY(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
659 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
660 oop result = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL);
661 return JNIHandles::make_local(THREAD, result);
662 C2V_END
663
664 C2V_VMENTRY(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
665 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
666 return cp->name_and_type_ref_index_at(index);
667 C2V_END
668
669 C2V_VMENTRY(jobject, lookupNameInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint which))
670 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
671 Handle sym = java_lang_String::create_from_symbol(cp->name_ref_at(which), CHECK_NULL);
672 return JNIHandles::make_local(THREAD, sym());
673 C2V_END
674
675 C2V_VMENTRY(jobject, lookupSignatureInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint which))
676 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
677 Handle sym = java_lang_String::create_from_symbol(cp->signature_ref_at(which), CHECK_NULL);
678 return JNIHandles::make_local(THREAD, sym());
679 C2V_END
680
681 C2V_VMENTRY(jint, lookupKlassRefIndexInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
682 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
683 return cp->klass_ref_index_at(index);
684 C2V_END
685
686 C2V_VMENTRY(jobject, resolveTypeInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
687 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
688 Klass* resolved_klass = cp->klass_at(index, CHECK_NULL);
689 Handle klass = CompilerToVM::get_jvmci_type(resolved_klass, CHECK_NULL);
690 return JNIHandles::make_local(THREAD, klass());
691 C2V_END
692
693 C2V_VMENTRY(jobject, lookupKlassInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
694 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
695 KlassHandle loading_klass(cp->pool_holder());
696 bool is_accessible = false;
697 KlassHandle klass = JVMCIEnv::get_klass_by_index(cp, index, is_accessible, loading_klass);
698 Symbol* symbol = NULL;
699 if (klass.is_null()) {
700 symbol = cp->klass_name_at(index);
701 }
702 Handle result;
703 if (!klass.is_null()) {
704 result = CompilerToVM::get_jvmci_type(klass, CHECK_NULL);
705 } else {
706 result = java_lang_String::create_from_symbol(symbol, CHECK_NULL);
707 }
708 return JNIHandles::make_local(THREAD, result());
709 C2V_END
710
711 C2V_VMENTRY(jobject, lookupAppendixInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
712 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
713 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
714 return JNIHandles::make_local(THREAD, appendix_oop);
715 C2V_END
716
717 C2V_VMENTRY(jobject, lookupMethodInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
718 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
719 instanceKlassHandle pool_holder(cp->pool_holder());
720 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
721 methodHandle method = JVMCIEnv::get_method_by_index(cp, index, bc, pool_holder);
722 oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
723 return JNIHandles::make_local(THREAD, result);
724 C2V_END
725
726 C2V_VMENTRY(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
727 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
728 return cp->remap_instruction_operand_from_cache(index);
729 C2V_END
730
731 C2V_VMENTRY(jobject, resolveFieldInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jobject jvmci_method, jbyte opcode, jlongArray info_handle))
732 ResourceMark rm;
733 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
734 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
735 fieldDescriptor fd;
736 LinkInfo link_info(cp, index, (jvmci_method != NULL) ? CompilerToVM::asMethod(jvmci_method) : NULL, CHECK_0);
737 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_0);
738 typeArrayOop info = (typeArrayOop) JNIHandles::resolve(info_handle);
739 assert(info != NULL && info->length() == 2, "must be");
740 info->long_at_put(0, (jlong) fd.access_flags().as_int());
741 info->long_at_put(1, (jlong) fd.offset());
742 oop field_holder = CompilerToVM::get_jvmci_type(fd.field_holder(), CHECK_NULL);
743 return JNIHandles::make_local(THREAD, field_holder);
744 C2V_END
745
746 C2V_VMENTRY(jint, getVtableIndexForInterfaceMethod, (JNIEnv *, jobject, jobject jvmci_type, jobject jvmci_method))
747 ResourceMark rm;
748 Klass* klass = CompilerToVM::asKlass(jvmci_type);
749 Method* method = CompilerToVM::asMethod(jvmci_method);
750 if (klass->is_interface()) {
751 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Interface %s should be handled in Java code", klass->external_name()));
752 }
753 if (!method->method_holder()->is_interface()) {
754 THROW_MSG_0(vmSymbols::java_lang_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()));
755 }
756 if (!InstanceKlass::cast(klass)->is_linked()) {
757 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Class %s must be linked", klass->external_name()));
758 }
759 return LinkResolver::vtable_index_of_interface_method(klass, method);
760 C2V_END
761
762 C2V_VMENTRY(jobject, resolveMethod, (JNIEnv *, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
763 KlassHandle recv_klass = CompilerToVM::asKlass(receiver_jvmci_type);
764 KlassHandle caller_klass = CompilerToVM::asKlass(caller_jvmci_type);
765 methodHandle method = CompilerToVM::asMethod(jvmci_method);
766
767 KlassHandle h_resolved (THREAD, method->method_holder());
768 Symbol* h_name = method->name();
769 Symbol* h_signature = method->signature();
770
771 if (MethodHandles::is_signature_polymorphic_method(method())) {
772 // Signature polymorphic methods are already resolved, JVMCI just returns NULL in this case.
773 return NULL;
774 }
775
776 LinkInfo link_info(h_resolved, h_name, h_signature, caller_klass);
777 methodHandle m;
778 // Only do exact lookup if receiver klass has been linked. Otherwise,
779 // the vtable has not been setup, and the LinkResolver will fail.
780 if (recv_klass->is_array_klass() ||
781 InstanceKlass::cast(recv_klass())->is_linked() && !recv_klass->is_interface()) {
782 if (h_resolved->is_interface()) {
783 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
784 } else {
785 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
786 }
787 }
788
789 if (m.is_null()) {
790 // Return NULL if there was a problem with lookup (uninitialized class, etc.)
791 return NULL;
792 }
793
794 oop result = CompilerToVM::get_jvmci_method(m, CHECK_NULL);
795 return JNIHandles::make_local(THREAD, result);
796 C2V_END
797
798 C2V_VMENTRY(jboolean, hasFinalizableSubclass,(JNIEnv *, jobject, jobject jvmci_type))
799 Klass* klass = CompilerToVM::asKlass(jvmci_type);
800 assert(klass != NULL, "method must not be called for primitive types");
801 return Dependencies::find_finalizable_subclass(klass) != NULL;
802 C2V_END
803
804 C2V_VMENTRY(jobject, getClassInitializer, (JNIEnv *, jobject, jobject jvmci_type))
805 InstanceKlass* klass = (InstanceKlass*) CompilerToVM::asKlass(jvmci_type);
806 oop result = CompilerToVM::get_jvmci_method(klass->class_initializer(), CHECK_NULL);
807 return JNIHandles::make_local(THREAD, result);
808 C2V_END
809
810 C2V_VMENTRY(jlong, getMaxCallTargetOffset, (JNIEnv*, jobject, jlong addr))
811 address target_addr = (address) addr;
812 if (target_addr != 0x0) {
813 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
814 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
815 return MAX2(ABS(off_low), ABS(off_high));
816 }
817 return -1;
818 C2V_END
819
820 C2V_VMENTRY(void, doNotInlineOrCompile,(JNIEnv *, jobject, jobject jvmci_method))
821 methodHandle method = CompilerToVM::asMethod(jvmci_method);
822 method->set_not_c1_compilable();
823 method->set_not_c2_compilable();
824 method->set_dont_inline(true);
825 C2V_END
826
827 C2V_VMENTRY(jint, installCode, (JNIEnv *jniEnv, jobject, jobject target, jobject compiled_code, jobject installed_code, jobject speculation_log))
828 ResourceMark rm;
829 HandleMark hm;
830 Handle target_handle = JNIHandles::resolve(target);
831 Handle compiled_code_handle = JNIHandles::resolve(compiled_code);
832 CodeBlob* cb = NULL;
833 Handle installed_code_handle = JNIHandles::resolve(installed_code);
834 Handle speculation_log_handle = JNIHandles::resolve(speculation_log);
835
836 JVMCICompiler* compiler = JVMCICompiler::instance(CHECK_JNI_ERR);
837
838 TraceTime install_time("installCode", JVMCICompiler::codeInstallTimer());
839 CodeInstaller installer;
840 JVMCIEnv::CodeInstallResult result = installer.install(compiler, target_handle, compiled_code_handle, cb, installed_code_handle, speculation_log_handle, CHECK_0);
841
842 if (PrintCodeCacheOnCompilation) {
843 stringStream s;
844 // Dump code cache into a buffer before locking the tty,
845 {
846 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
847 CodeCache::print_summary(&s, false);
848 }
849 ttyLocker ttyl;
850 tty->print_raw_cr(s.as_string());
851 }
852
853 if (result != JVMCIEnv::ok) {
854 assert(cb == NULL, "should be");
855 } else {
856 if (!installed_code_handle.is_null()) {
857 assert(installed_code_handle->is_a(InstalledCode::klass()), "wrong type");
858 nmethod::invalidate_installed_code(installed_code_handle, CHECK_0);
859 {
860 // Ensure that all updates to the InstalledCode fields are consistent.
861 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag);
862 InstalledCode::set_address(installed_code_handle, (jlong) cb);
863 InstalledCode::set_version(installed_code_handle, InstalledCode::version(installed_code_handle) + 1);
864 if (cb->is_nmethod()) {
865 InstalledCode::set_entryPoint(installed_code_handle, (jlong) cb->as_nmethod_or_null()->verified_entry_point());
866 } else {
867 InstalledCode::set_entryPoint(installed_code_handle, (jlong) cb->code_begin());
868 }
869 if (installed_code_handle->is_a(HotSpotInstalledCode::klass())) {
870 HotSpotInstalledCode::set_size(installed_code_handle, cb->size());
871 HotSpotInstalledCode::set_codeStart(installed_code_handle, (jlong) cb->code_begin());
872 HotSpotInstalledCode::set_codeSize(installed_code_handle, cb->code_size());
873 }
874 }
875 nmethod* nm = cb->as_nmethod_or_null();
876 if (nm != NULL && installed_code_handle->is_scavengable()) {
877 assert(nm->detect_scavenge_root_oops(), "nm should be scavengable if installed_code is scavengable");
878 if (!UseG1GC) {
879 assert(nm->on_scavenge_root_list(), "nm should be on scavengable list");
880 }
881 }
882 }
883 }
884 return result;
885 C2V_END
886
887 C2V_VMENTRY(jint, getMetadata, (JNIEnv *jniEnv, jobject, jobject target, jobject compiled_code, jobject metadata))
888 ResourceMark rm;
889 HandleMark hm;
890
891 Handle target_handle = JNIHandles::resolve(target);
892 Handle compiled_code_handle = JNIHandles::resolve(compiled_code);
893 Handle metadata_handle = JNIHandles::resolve(metadata);
894
895 CodeMetadata code_metadata;
896 CodeBlob *cb = NULL;
897 CodeInstaller installer;
898
899 JVMCIEnv::CodeInstallResult result = installer.gather_metadata(target_handle, compiled_code_handle, code_metadata, CHECK_0);
900 if (result != JVMCIEnv::ok) {
901 return result;
902 }
903
904 if (code_metadata.get_nr_pc_desc() > 0) {
905 typeArrayHandle pcArrayOop = oopFactory::new_byteArray(sizeof(PcDesc) * code_metadata.get_nr_pc_desc(), CHECK_(JVMCIEnv::cache_full));
906 memcpy(pcArrayOop->byte_at_addr(0), code_metadata.get_pc_desc(), sizeof(PcDesc) * code_metadata.get_nr_pc_desc());
907 HotSpotMetaData::set_pcDescBytes(metadata_handle, pcArrayOop());
908 }
909
910 if (code_metadata.get_scopes_size() > 0) {
911 typeArrayHandle scopesArrayOop = oopFactory::new_byteArray(code_metadata.get_scopes_size(), CHECK_(JVMCIEnv::cache_full));
912 memcpy(scopesArrayOop->byte_at_addr(0), code_metadata.get_scopes_desc(), code_metadata.get_scopes_size());
913 HotSpotMetaData::set_scopesDescBytes(metadata_handle, scopesArrayOop());
914 }
915
916 RelocBuffer* reloc_buffer = code_metadata.get_reloc_buffer();
917 typeArrayHandle relocArrayOop = oopFactory::new_byteArray((int) reloc_buffer->size(), CHECK_(JVMCIEnv::cache_full));
918 if (reloc_buffer->size() > 0) {
919 memcpy(relocArrayOop->byte_at_addr(0), reloc_buffer->begin(), reloc_buffer->size());
920 }
921 HotSpotMetaData::set_relocBytes(metadata_handle, relocArrayOop());
922
923 const OopMapSet* oopMapSet = installer.oopMapSet();
924 {
925 ResourceMark mark;
926 ImmutableOopMapBuilder builder(oopMapSet);
927 int oopmap_size = builder.heap_size();
928 typeArrayHandle oopMapArrayHandle = oopFactory::new_byteArray(oopmap_size, CHECK_(JVMCIEnv::cache_full));
929 builder.generate_into((address) oopMapArrayHandle->byte_at_addr(0));
930 HotSpotMetaData::set_oopMaps(metadata_handle, oopMapArrayHandle());
931 }
932
933 HotSpotMetaData::set_metadata(metadata_handle, NULL);
934
935 ExceptionHandlerTable* handler = code_metadata.get_exception_table();
936 int table_size = handler->size_in_bytes();
937 typeArrayHandle exceptionArrayOop = oopFactory::new_byteArray(table_size, CHECK_(JVMCIEnv::cache_full));
938
939 if (table_size > 0) {
940 handler->copy_bytes_to((address) exceptionArrayOop->byte_at_addr(0));
941 }
942 HotSpotMetaData::set_exceptionBytes(metadata_handle, exceptionArrayOop());
943
944 return result;
945 C2V_END
946
947 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv *jniEnv, jobject))
948 JVMCICompiler* compiler = JVMCICompiler::instance(CHECK);
949 CompilerStatistics* stats = compiler->stats();
950 stats->_standard.reset();
951 stats->_osr.reset();
952 C2V_END
953
954 C2V_VMENTRY(jobject, disassembleCodeBlob, (JNIEnv *jniEnv, jobject, jobject installedCode))
955 ResourceMark rm;
956 HandleMark hm;
957
958 if (installedCode == NULL) {
959 THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(), "installedCode is null");
960 }
961
962 jlong codeBlob = InstalledCode::address(installedCode);
963 if (codeBlob == 0L) {
964 return NULL;
965 }
966
967 CodeBlob* cb = (CodeBlob*) (address) codeBlob;
968 if (cb == NULL) {
969 return NULL;
970 }
971
972 // We don't want the stringStream buffer to resize during disassembly as it
973 // uses scoped resource memory. If a nested function called during disassembly uses
974 // a ResourceMark and the buffer expands within the scope of the mark,
975 // the buffer becomes garbage when that scope is exited. Experience shows that
976 // the disassembled code is typically about 10x the code size so a fixed buffer
977 // sized to 20x code size plus a fixed amount for header info should be sufficient.
978 int bufferSize = cb->code_size() * 20 + 1024;
979 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
980 stringStream st(buffer, bufferSize);
981 if (cb->is_nmethod()) {
982 nmethod* nm = (nmethod*) cb;
983 if (!nm->is_alive()) {
984 return NULL;
985 }
986 }
987 Disassembler::decode(cb, &st);
988 if (st.size() <= 0) {
989 return NULL;
990 }
991
992 Handle result = java_lang_String::create_from_platform_dependent_str(st.as_string(), CHECK_NULL);
993 return JNIHandles::make_local(THREAD, result());
994 C2V_END
995
996 C2V_VMENTRY(jobject, getStackTraceElement, (JNIEnv*, jobject, jobject jvmci_method, int bci))
997 ResourceMark rm;
998 HandleMark hm;
999
1000 methodHandle method = CompilerToVM::asMethod(jvmci_method);
1001 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_NULL);
1002 return JNIHandles::make_local(THREAD, element);
1003 C2V_END
1004
1005 C2V_VMENTRY(jobject, executeInstalledCode, (JNIEnv*, jobject, jobject args, jobject hotspotInstalledCode))
1006 ResourceMark rm;
1007 HandleMark hm;
1008
1009 jlong nmethodValue = InstalledCode::address(hotspotInstalledCode);
1010 if (nmethodValue == 0L) {
1011 THROW_NULL(vmSymbols::jdk_vm_ci_code_InvalidInstalledCodeException());
1012 }
1013 nmethod* nm = (nmethod*) (address) nmethodValue;
1014 methodHandle mh = nm->method();
1015 Symbol* signature = mh->signature();
1016 JavaCallArguments jca(mh->size_of_parameters());
1017
1018 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
1019 JavaValue result(jap.get_ret_type());
1020 jca.set_alternative_target(nm);
1021 JavaCalls::call(&result, mh, &jca, CHECK_NULL);
1022
1023 if (jap.get_ret_type() == T_VOID) {
1024 return NULL;
1025 } else if (jap.get_ret_type() == T_OBJECT || jap.get_ret_type() == T_ARRAY) {
1026 return JNIHandles::make_local(THREAD, (oop) result.get_jobject());
1027 } else {
1028 jvalue *value = (jvalue *) result.get_value_addr();
1029 // Narrow the value down if required (Important on big endian machines)
1030 switch (jap.get_ret_type()) {
1031 case T_BOOLEAN:
1032 value->z = (jboolean) value->i;
1033 break;
1034 case T_BYTE:
1035 value->b = (jbyte) value->i;
1036 break;
1037 case T_CHAR:
1038 value->c = (jchar) value->i;
1039 break;
1040 case T_SHORT:
1041 value->s = (jshort) value->i;
1042 break;
1043 }
1044 oop o = java_lang_boxing_object::create(jap.get_ret_type(), value, CHECK_NULL);
1045 return JNIHandles::make_local(THREAD, o);
1046 }
1047 C2V_END
1048
1049 C2V_VMENTRY(jlongArray, getLineNumberTable, (JNIEnv *, jobject, jobject jvmci_method))
1050 Method* method = CompilerToVM::asMethod(jvmci_method);
1051 if (!method->has_linenumber_table()) {
1052 return NULL;
1053 }
1054 u2 num_entries = 0;
1055 CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
1056 while (streamForSize.read_pair()) {
1057 num_entries++;
1058 }
1059
1060 CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
1061 typeArrayOop result = oopFactory::new_longArray(2 * num_entries, CHECK_NULL);
1062
1063 int i = 0;
1064 jlong value;
1065 while (stream.read_pair()) {
1066 value = ((long) stream.bci());
1067 result->long_at_put(i, value);
1068 value = ((long) stream.line());
1069 result->long_at_put(i + 1, value);
1070 i += 2;
1071 }
1072
1073 return (jlongArray) JNIHandles::make_local(THREAD, result);
1074 C2V_END
1075
1076 C2V_VMENTRY(jlong, getLocalVariableTableStart, (JNIEnv *, jobject, jobject jvmci_method))
1077 ResourceMark rm;
1078 Method* method = CompilerToVM::asMethod(jvmci_method);
1079 if (!method->has_localvariable_table()) {
1080 return 0;
1081 }
1082 return (jlong) (address) method->localvariable_table_start();
1083 C2V_END
1084
1085 C2V_VMENTRY(jint, getLocalVariableTableLength, (JNIEnv *, jobject, jobject jvmci_method))
1086 ResourceMark rm;
1087 Method* method = CompilerToVM::asMethod(jvmci_method);
1088 return method->localvariable_table_length();
1089 C2V_END
1090
1091 C2V_VMENTRY(void, reprofile, (JNIEnv*, jobject, jobject jvmci_method))
1092 Method* method = CompilerToVM::asMethod(jvmci_method);
1093 MethodCounters* mcs = method->method_counters();
1094 if (mcs != NULL) {
1095 mcs->clear_counters();
1096 }
1097 NOT_PRODUCT(method->set_compiled_invocation_count(0));
1098
1099 CompiledMethod* code = method->code();
1100 if (code != NULL) {
1101 code->make_not_entrant();
1102 }
1103
1104 MethodData* method_data = method->method_data();
1105 if (method_data == NULL) {
1106 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
1107 method_data = MethodData::allocate(loader_data, method, CHECK);
1108 method->set_method_data(method_data);
1109 } else {
1110 method_data->initialize();
1111 }
1112 C2V_END
1113
1114
1115 C2V_VMENTRY(void, invalidateInstalledCode, (JNIEnv*, jobject, jobject installed_code))
1116 Handle installed_code_handle = JNIHandles::resolve(installed_code);
1117 nmethod::invalidate_installed_code(installed_code_handle, CHECK);
1118 C2V_END
1119
1120 C2V_VMENTRY(jlongArray, collectCounters, (JNIEnv*, jobject))
1121 typeArrayOop arrayOop = oopFactory::new_longArray(JVMCICounterSize, CHECK_NULL);
1122 JavaThread::collect_counters(arrayOop);
1123 return (jlongArray) JNIHandles::make_local(THREAD, arrayOop);
1124 C2V_END
1125
1126 C2V_VMENTRY(int, allocateCompileId, (JNIEnv*, jobject, jobject jvmci_method, int entry_bci))
1127 HandleMark hm;
1128 ResourceMark rm;
1129 if (JNIHandles::resolve(jvmci_method) == NULL) {
1130 THROW_0(vmSymbols::java_lang_NullPointerException());
1131 }
1132 Method* method = CompilerToVM::asMethod(jvmci_method);
1133 if (entry_bci >= method->code_size() || entry_bci < -1) {
1134 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), err_msg("Unexpected bci %d", entry_bci));
1135 }
1136 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
1137 C2V_END
1138
1139
1140 C2V_VMENTRY(jboolean, isMature, (JNIEnv*, jobject, jlong metaspace_method_data))
1141 MethodData* mdo = CompilerToVM::asMethodData(metaspace_method_data);
1142 return mdo != NULL && mdo->is_mature();
1143 C2V_END
1144
1145 C2V_VMENTRY(jboolean, hasCompiledCodeForOSR, (JNIEnv*, jobject, jobject jvmci_method, int entry_bci, int comp_level))
1146 Method* method = CompilerToVM::asMethod(jvmci_method);
1147 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL;
1148 C2V_END
1149
1150 C2V_VMENTRY(jobject, getSymbol, (JNIEnv*, jobject, jlong symbol))
1151 Handle sym = java_lang_String::create_from_symbol((Symbol*)(address)symbol, CHECK_NULL);
1152 return JNIHandles::make_local(THREAD, sym());
1153 C2V_END
1154
1155 bool matches(jobjectArray methods, Method* method) {
1156 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1157
1158 for (int i = 0; i < methods_oop->length(); i++) {
1159 oop resolved = methods_oop->obj_at(i);
1160 if (resolved->is_a(HotSpotResolvedJavaMethodImpl::klass()) && CompilerToVM::asMethod(resolved) == method) {
1161 return true;
1162 }
1163 }
1164 return false;
1165 }
1166
1167 C2V_VMENTRY(jobject, getNextStackFrame, (JNIEnv*, jobject compilerToVM, jobject hs_frame, jobjectArray methods, jint initialSkip))
1168 ResourceMark rm;
1169
1170 if (!thread->has_last_Java_frame()) return NULL;
1171 Handle result = HotSpotStackFrameReference::klass()->allocate_instance(thread);
1172 HotSpotStackFrameReference::klass()->initialize(thread);
1173
1174 StackFrameStream fst(thread);
1175 if (hs_frame != NULL) {
1176 // look for the correct stack frame if one is given
1177 intptr_t* stack_pointer = (intptr_t*) HotSpotStackFrameReference::stackPointer(hs_frame);
1178 while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
1179 fst.next();
1180 }
1181 if (fst.current()->sp() != stack_pointer) {
1182 THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "stack frame not found")
1183 }
1184 }
1185
1186 int frame_number = 0;
1187 vframe* vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1188 if (hs_frame != NULL) {
1189 // look for the correct vframe within the stack frame if one is given
1190 int last_frame_number = HotSpotStackFrameReference::frameNumber(hs_frame);
1191 while (frame_number < last_frame_number) {
1192 if (vf->is_top()) {
1193 THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "invalid frame number")
1194 }
1195 vf = vf->sender();
1196 frame_number ++;
1197 }
1198 // move one frame forward
1199 if (vf->is_top()) {
1200 if (fst.is_done()) {
1201 return NULL;
1202 }
1203 fst.next();
1204 vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1205 frame_number = 0;
1206 } else {
1207 vf = vf->sender();
1208 frame_number++;
1209 }
1210 }
1211
1212 while (true) {
1213 // look for the given method
1214 while (true) {
1215 StackValueCollection* locals = NULL;
1216 if (vf->is_compiled_frame()) {
1217 // compiled method frame
1218 compiledVFrame* cvf = compiledVFrame::cast(vf);
1219 if (methods == NULL || matches(methods, cvf->method())) {
1220 if (initialSkip > 0) {
1221 initialSkip --;
1222 } else {
1223 ScopeDesc* scope = cvf->scope();
1224 // native wrapper do not have a scope
1225 if (scope != NULL && scope->objects() != NULL) {
1226 bool realloc_failures = Deoptimization::realloc_objects(thread, fst.current(), scope->objects(), THREAD);
1227 Deoptimization::reassign_fields(fst.current(), fst.register_map(), scope->objects(), realloc_failures, false);
1228
1229 GrowableArray<ScopeValue*>* local_values = scope->locals();
1230 typeArrayHandle array = oopFactory::new_boolArray(local_values->length(), thread);
1231 for (int i = 0; i < local_values->length(); i++) {
1232 ScopeValue* value = local_values->at(i);
1233 if (value->is_object()) {
1234 array->bool_at_put(i, true);
1235 }
1236 }
1237 HotSpotStackFrameReference::set_localIsVirtual(result, array());
1238 } else {
1239 HotSpotStackFrameReference::set_localIsVirtual(result, NULL);
1240 }
1241
1242 locals = cvf->locals();
1243 HotSpotStackFrameReference::set_bci(result, cvf->bci());
1244 oop method = CompilerToVM::get_jvmci_method(cvf->method(), CHECK_NULL);
1245 HotSpotStackFrameReference::set_method(result, method);
1246 }
1247 }
1248 } else if (vf->is_interpreted_frame()) {
1249 // interpreted method frame
1250 interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1251 if (methods == NULL || matches(methods, ivf->method())) {
1252 if (initialSkip > 0) {
1253 initialSkip --;
1254 } else {
1255 locals = ivf->locals();
1256 HotSpotStackFrameReference::set_bci(result, ivf->bci());
1257 oop method = CompilerToVM::get_jvmci_method(ivf->method(), CHECK_NULL);
1258 HotSpotStackFrameReference::set_method(result, method);
1259 HotSpotStackFrameReference::set_localIsVirtual(result, NULL);
1260 }
1261 }
1262 }
1263
1264 // locals != NULL means that we found a matching frame and result is already partially initialized
1265 if (locals != NULL) {
1266 HotSpotStackFrameReference::set_compilerToVM(result, JNIHandles::resolve(compilerToVM));
1267 HotSpotStackFrameReference::set_stackPointer(result, (jlong) fst.current()->sp());
1268 HotSpotStackFrameReference::set_frameNumber(result, frame_number);
1269
1270 // initialize the locals array
1271 objArrayHandle array = oopFactory::new_objectArray(locals->size(), thread);
1272 for (int i = 0; i < locals->size(); i++) {
1273 StackValue* var = locals->at(i);
1274 if (var->type() == T_OBJECT) {
1275 array->obj_at_put(i, locals->at(i)->get_obj()());
1276 }
1277 }
1278 HotSpotStackFrameReference::set_locals(result, array());
1279
1280 return JNIHandles::make_local(thread, result());
1281 }
1282
1283 if (vf->is_top()) {
1284 break;
1285 }
1286 frame_number++;
1287 vf = vf->sender();
1288 } // end of vframe loop
1289
1290 if (fst.is_done()) {
1291 break;
1292 }
1293 fst.next();
1294 vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1295 frame_number = 0;
1296 } // end of frame loop
1297
1298 // the end was reached without finding a matching method
1299 return NULL;
1300 C2V_END
1301
1302 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
1303 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
1304 CallInfo callInfo;
1305 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK);
1306 ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index);
1307 cp_cache_entry->set_dynamic_call(cp, callInfo);
1308 C2V_END
1309
1310 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
1311 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
1312 KlassHandle holder = cp->klass_ref_at(index, CHECK);
1313 Symbol* name = cp->name_ref_at(index);
1314 if (MethodHandles::is_signature_polymorphic_name(holder(), name)) {
1315 CallInfo callInfo;
1316 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1317 ConstantPoolCacheEntry* cp_cache_entry = cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1318 cp_cache_entry->set_method_handle(cp, callInfo);
1319 }
1320 C2V_END
1321
1322 C2V_VMENTRY(jobject, getSignaturePolymorphicHolders, (JNIEnv*, jobject))
1323 objArrayHandle holders = oopFactory::new_objArray(SystemDictionary::String_klass(), 2, CHECK_NULL);
1324 Handle mh = java_lang_String::create_from_str("Ljava/lang/invoke/MethodHandle;", CHECK_NULL);
1325 Handle vh = java_lang_String::create_from_str("Ljava/lang/invoke/VarHandle;", CHECK_NULL);
1326 holders->obj_at_put(0, mh());
1327 holders->obj_at_put(1, vh());
1328 return JNIHandles::make_local(THREAD, holders());
1329 C2V_END
1330
1331 C2V_VMENTRY(jboolean, shouldDebugNonSafepoints, (JNIEnv*, jobject))
1332 //see compute_recording_non_safepoints in debugInfroRec.cpp
1333 if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1334 return true;
1335 }
1336 return DebugNonSafepoints;
1337 C2V_END
1338
1339 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1340 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv*, jobject, jobject hs_frame, bool invalidate))
1341 ResourceMark rm;
1342
1343 if (hs_frame == NULL) {
1344 THROW_MSG(vmSymbols::java_lang_NullPointerException(), "stack frame is null")
1345 }
1346
1347 HotSpotStackFrameReference::klass()->initialize(thread);
1348
1349 // look for the given stack frame
1350 StackFrameStream fst(thread);
1351 intptr_t* stack_pointer = (intptr_t*) HotSpotStackFrameReference::stackPointer(hs_frame);
1352 while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
1353 fst.next();
1354 }
1355 if (fst.current()->sp() != stack_pointer) {
1356 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found")
1357 }
1358
1359 if (invalidate) {
1360 if (!fst.current()->is_compiled_frame()) {
1361 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1362 }
1363 assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
1364 ((nmethod*) fst.current()->cb())->make_not_entrant();
1365 }
1366 Deoptimization::deoptimize(thread, *fst.current(), fst.register_map(), Deoptimization::Reason_none);
1367 // look for the frame again as it has been updated by deopt (pc, deopt state...)
1368 StackFrameStream fstAfterDeopt(thread);
1369 while (fstAfterDeopt.current()->sp() != stack_pointer && !fstAfterDeopt.is_done()) {
1370 fstAfterDeopt.next();
1371 }
1372 if (fstAfterDeopt.current()->sp() != stack_pointer) {
1373 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1374 }
1375
1376 vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1377 if (!vf->is_compiled_frame()) {
1378 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1379 }
1380
1381 GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1382 while (true) {
1383 assert(vf->is_compiled_frame(), "Wrong frame type");
1384 virtualFrames->push(compiledVFrame::cast(vf));
1385 if (vf->is_top()) {
1386 break;
1387 }
1388 vf = vf->sender();
1389 }
1390
1391 int last_frame_number = HotSpotStackFrameReference::frameNumber(hs_frame);
1392 if (last_frame_number >= virtualFrames->length()) {
1393 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "invalid frame number")
1394 }
1395
1396 // Reallocate the non-escaping objects and restore their fields.
1397 assert (virtualFrames->at(last_frame_number)->scope() != NULL,"invalid scope");
1398 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1399
1400 if (objects == NULL) {
1401 // no objects to materialize
1402 return;
1403 }
1404
1405 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), objects, THREAD);
1406 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
1407
1408 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1409 compiledVFrame* cvf = virtualFrames->at(frame_index);
1410
1411 GrowableArray<ScopeValue*>* scopeLocals = cvf->scope()->locals();
1412 StackValueCollection* locals = cvf->locals();
1413
1414 if (locals != NULL) {
1415 for (int i2 = 0; i2 < locals->size(); i2++) {
1416 StackValue* var = locals->at(i2);
1417 if (var->type() == T_OBJECT && scopeLocals->at(i2)->is_object()) {
1418 jvalue val;
1419 val.l = (jobject) locals->at(i2)->get_obj()();
1420 cvf->update_local(T_OBJECT, i2, val);
1421 }
1422 }
1423 }
1424 }
1425
1426 // all locals are materialized by now
1427 HotSpotStackFrameReference::set_localIsVirtual(hs_frame, NULL);
1428
1429 // update the locals array
1430 objArrayHandle array = HotSpotStackFrameReference::locals(hs_frame);
1431 StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1432 for (int i = 0; i < locals->size(); i++) {
1433 StackValue* var = locals->at(i);
1434 if (var->type() == T_OBJECT) {
1435 array->obj_at_put(i, locals->at(i)->get_obj()());
1436 }
1437 }
1438 C2V_END
1439
1440 C2V_VMENTRY(void, writeDebugOutput, (JNIEnv*, jobject, jbyteArray bytes, jint offset, jint length))
1441 if (bytes == NULL) {
1442 THROW(vmSymbols::java_lang_NullPointerException());
1443 }
1444 typeArrayOop array = (typeArrayOop) JNIHandles::resolve(bytes);
1445
1446 // Check if offset and length are non negative.
1447 if (offset < 0 || length < 0) {
1448 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
1449 }
1450 // Check if the range is valid.
1451 if ((((unsigned int) length + (unsigned int) offset) > (unsigned int) array->length())) {
1452 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
1453 }
1454 while (length > 0) {
1455 jbyte* start = array->byte_at_addr(offset);
1456 tty->write((char*) start, MIN2(length, O_BUFLEN));
1457 length -= O_BUFLEN;
1458 offset += O_BUFLEN;
1459 }
1460 C2V_END
1461
1462 C2V_VMENTRY(void, flushDebugOutput, (JNIEnv*, jobject))
1463 tty->flush();
1464 C2V_END
1465
1466 C2V_VMENTRY(int, methodDataProfileDataSize, (JNIEnv*, jobject, jlong metaspace_method_data, jint position))
1467 ResourceMark rm;
1468 MethodData* mdo = CompilerToVM::asMethodData(metaspace_method_data);
1469 ProfileData* profile_data = mdo->data_at(position);
1470 if (mdo->is_valid(profile_data)) {
1471 return profile_data->size_in_bytes();
1472 }
1473 DataLayout* data = mdo->extra_data_base();
1474 DataLayout* end = mdo->extra_data_limit();
1475 for (;; data = mdo->next_extra(data)) {
1476 assert(data < end, "moved past end of extra data");
1477 profile_data = data->data_in();
1478 if (mdo->dp_to_di(profile_data->dp()) == position) {
1479 return profile_data->size_in_bytes();
1480 }
1481 }
1482 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), err_msg("Invalid profile data position %d", position));
1483 C2V_END
1484
1485 C2V_VMENTRY(int, interpreterFrameSize, (JNIEnv*, jobject, jobject bytecode_frame_handle))
1486 if (bytecode_frame_handle == NULL) {
1487 THROW_0(vmSymbols::java_lang_NullPointerException());
1488 }
1489
1490 oop top_bytecode_frame = JNIHandles::resolve_non_null(bytecode_frame_handle);
1491 oop bytecode_frame = top_bytecode_frame;
1492 int size = 0;
1493 int callee_parameters = 0;
1494 int callee_locals = 0;
1495 Method* method = getMethodFromHotSpotMethod(BytecodePosition::method(bytecode_frame));
1496 int extra_args = method->max_stack() - BytecodeFrame::numStack(bytecode_frame);
1497
1498 while (bytecode_frame != NULL) {
1499 int locks = BytecodeFrame::numLocks(bytecode_frame);
1500 int temps = BytecodeFrame::numStack(bytecode_frame);
1501 bool is_top_frame = (bytecode_frame == top_bytecode_frame);
1502 Method* method = getMethodFromHotSpotMethod(BytecodePosition::method(bytecode_frame));
1503
1504 int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
1505 temps + callee_parameters,
1506 extra_args,
1507 locks,
1508 callee_parameters,
1509 callee_locals,
1510 is_top_frame);
1511 size += frame_size;
1512
1513 callee_parameters = method->size_of_parameters();
1514 callee_locals = method->max_locals();
1515 extra_args = 0;
1516 bytecode_frame = BytecodePosition::caller(bytecode_frame);
1517 }
1518 return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
1519 C2V_END
1520
1521
1522 #define CC (char*) /*cast a literal from (const char*)*/
1523 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
1524
1525 #define STRING "Ljava/lang/String;"
1526 #define OBJECT "Ljava/lang/Object;"
1527 #define CLASS "Ljava/lang/Class;"
1528 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;"
1529 #define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;"
1530 #define TARGET_DESCRIPTION "Ljdk/vm/ci/code/TargetDescription;"
1531 #define BYTECODE_FRAME "Ljdk/vm/ci/code/BytecodeFrame;"
1532 #define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
1533 #define HS_RESOLVED_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
1534 #define HS_RESOLVED_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
1535 #define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
1536 #define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
1537 #define HS_CONFIG "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
1538 #define HS_METADATA "Ljdk/vm/ci/hotspot/HotSpotMetaData;"
1539 #define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
1540 #define HS_SPECULATION_LOG "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
1541 #define METASPACE_METHOD_DATA "J"
1542
1543 JNINativeMethod CompilerToVM::methods[] = {
1544 {CC "getBytecode", CC "(" HS_RESOLVED_METHOD ")[B", FN_PTR(getBytecode)},
1545 {CC "getExceptionTableStart", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getExceptionTableStart)},
1546 {CC "getExceptionTableLength", CC "(" HS_RESOLVED_METHOD ")I", FN_PTR(getExceptionTableLength)},
1547 {CC "findUniqueConcreteMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")" HS_RESOLVED_METHOD, FN_PTR(findUniqueConcreteMethod)},
1548 {CC "getImplementor", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS, FN_PTR(getImplementor)},
1549 {CC "getStackTraceElement", CC "(" HS_RESOLVED_METHOD "I)" STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)},
1550 {CC "methodIsIgnoredBySecurityStackWalk", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)},
1551 {CC "doNotInlineOrCompile", CC "(" HS_RESOLVED_METHOD ")V", FN_PTR(doNotInlineOrCompile)},
1552 {CC "canInlineMethod", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(canInlineMethod)},
1553 {CC "shouldInlineMethod", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(shouldInlineMethod)},
1554 {CC "lookupType", CC "(" STRING CLASS "Z)" HS_RESOLVED_KLASS, FN_PTR(lookupType)},
1555 {CC "lookupNameInPool", CC "(" HS_CONSTANT_POOL "I)" STRING, FN_PTR(lookupNameInPool)},
1556 {CC "lookupNameAndTypeRefIndexInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(lookupNameAndTypeRefIndexInPool)},
1557 {CC "lookupSignatureInPool", CC "(" HS_CONSTANT_POOL "I)" STRING, FN_PTR(lookupSignatureInPool)},
1558 {CC "lookupKlassRefIndexInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(lookupKlassRefIndexInPool)},
1559 {CC "lookupKlassInPool", CC "(" HS_CONSTANT_POOL "I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)},
1560 {CC "lookupAppendixInPool", CC "(" HS_CONSTANT_POOL "I)" OBJECT, FN_PTR(lookupAppendixInPool)},
1561 {CC "lookupMethodInPool", CC "(" HS_CONSTANT_POOL "IB)" HS_RESOLVED_METHOD, FN_PTR(lookupMethodInPool)},
1562 {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(constantPoolRemapInstructionOperandFromCache)},
1563 {CC "resolveConstantInPool", CC "(" HS_CONSTANT_POOL "I)" OBJECT, FN_PTR(resolveConstantInPool)},
1564 {CC "resolvePossiblyCachedConstantInPool", CC "(" HS_CONSTANT_POOL "I)" OBJECT, FN_PTR(resolvePossiblyCachedConstantInPool)},
1565 {CC "resolveTypeInPool", CC "(" HS_CONSTANT_POOL "I)" HS_RESOLVED_KLASS, FN_PTR(resolveTypeInPool)},
1566 {CC "resolveFieldInPool", CC "(" HS_CONSTANT_POOL "I" HS_RESOLVED_METHOD "B[J)" HS_RESOLVED_KLASS, FN_PTR(resolveFieldInPool)},
1567 {CC "resolveInvokeDynamicInPool", CC "(" HS_CONSTANT_POOL "I)V", FN_PTR(resolveInvokeDynamicInPool)},
1568 {CC "resolveInvokeHandleInPool", CC "(" HS_CONSTANT_POOL "I)V", FN_PTR(resolveInvokeHandleInPool)},
1569 {CC "resolveMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(resolveMethod)},
1570 {CC "getSignaturePolymorphicHolders", CC "()[" STRING, FN_PTR(getSignaturePolymorphicHolders)},
1571 {CC "getVtableIndexForInterfaceMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")I", FN_PTR(getVtableIndexForInterfaceMethod)},
1572 {CC "getClassInitializer", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(getClassInitializer)},
1573 {CC "hasFinalizableSubclass", CC "(" HS_RESOLVED_KLASS ")Z", FN_PTR(hasFinalizableSubclass)},
1574 {CC "getMaxCallTargetOffset", CC "(J)J", FN_PTR(getMaxCallTargetOffset)},
1575 {CC "getResolvedJavaMethodAtSlot", CC "(" CLASS "I)" HS_RESOLVED_METHOD, FN_PTR(getResolvedJavaMethodAtSlot)},
1576 {CC "getResolvedJavaMethod", CC "(Ljava/lang/Object;J)" HS_RESOLVED_METHOD, FN_PTR(getResolvedJavaMethod)},
1577 {CC "getConstantPool", CC "(Ljava/lang/Object;)" HS_CONSTANT_POOL, FN_PTR(getConstantPool)},
1578 {CC "getResolvedJavaType", CC "(Ljava/lang/Object;JZ)" HS_RESOLVED_KLASS, FN_PTR(getResolvedJavaType)},
1579 {CC "readConfiguration", CC "()[" OBJECT, FN_PTR(readConfiguration)},
1580 {CC "installCode", CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE INSTALLED_CODE HS_SPECULATION_LOG ")I", FN_PTR(installCode)},
1581 {CC "getMetadata", CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE HS_METADATA ")I", FN_PTR(getMetadata)},
1582 {CC "resetCompilationStatistics", CC "()V", FN_PTR(resetCompilationStatistics)},
1583 {CC "disassembleCodeBlob", CC "(" INSTALLED_CODE ")" STRING, FN_PTR(disassembleCodeBlob)},
1584 {CC "executeInstalledCode", CC "([" OBJECT INSTALLED_CODE ")" OBJECT, FN_PTR(executeInstalledCode)},
1585 {CC "getLineNumberTable", CC "(" HS_RESOLVED_METHOD ")[J", FN_PTR(getLineNumberTable)},
1586 {CC "getLocalVariableTableStart", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getLocalVariableTableStart)},
1587 {CC "getLocalVariableTableLength", CC "(" HS_RESOLVED_METHOD ")I", FN_PTR(getLocalVariableTableLength)},
1588 {CC "reprofile", CC "(" HS_RESOLVED_METHOD ")V", FN_PTR(reprofile)},
1589 {CC "invalidateInstalledCode", CC "(" INSTALLED_CODE ")V", FN_PTR(invalidateInstalledCode)},
1590 {CC "collectCounters", CC "()[J", FN_PTR(collectCounters)},
1591 {CC "allocateCompileId", CC "(" HS_RESOLVED_METHOD "I)I", FN_PTR(allocateCompileId)},
1592 {CC "isMature", CC "(" METASPACE_METHOD_DATA ")Z", FN_PTR(isMature)},
1593 {CC "hasCompiledCodeForOSR", CC "(" HS_RESOLVED_METHOD "II)Z", FN_PTR(hasCompiledCodeForOSR)},
1594 {CC "getSymbol", CC "(J)" STRING, FN_PTR(getSymbol)},
1595 {CC "getNextStackFrame", CC "(" HS_STACK_FRAME_REF "[" RESOLVED_METHOD "I)" HS_STACK_FRAME_REF, FN_PTR(getNextStackFrame)},
1596 {CC "materializeVirtualObjects", CC "(" HS_STACK_FRAME_REF "Z)V", FN_PTR(materializeVirtualObjects)},
1597 {CC "shouldDebugNonSafepoints", CC "()Z", FN_PTR(shouldDebugNonSafepoints)},
1598 {CC "writeDebugOutput", CC "([BII)V", FN_PTR(writeDebugOutput)},
1599 {CC "flushDebugOutput", CC "()V", FN_PTR(flushDebugOutput)},
1600 {CC "methodDataProfileDataSize", CC "(JI)I", FN_PTR(methodDataProfileDataSize)},
1601 {CC "interpreterFrameSize", CC "(" BYTECODE_FRAME ")I", FN_PTR(interpreterFrameSize)},
1602 };
1603
1604 int CompilerToVM::methods_count() {
1605 return sizeof(methods) / sizeof(JNINativeMethod);
1606 }
1607