1 /*
  2  * Copyright (c) 2011, 2025, 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 #ifdef COMPILER1
 25 #include "c1/c1_Compiler.hpp"
 26 #endif
 27 #include "ci/ciUtilities.hpp"
 28 #include "compiler/compiler_globals.hpp"
 29 #include "compiler/oopMap.hpp"
 30 #include "gc/shared/barrierSet.hpp"
 31 #include "gc/shared/barrierSetAssembler.hpp"
 32 #include "gc/shared/barrierSetNMethod.hpp"
 33 #include "gc/shared/cardTable.hpp"
 34 #include "gc/shared/collectedHeap.hpp"
 35 #include "gc/shared/gc_globals.hpp"
 36 #include "gc/shared/tlab_globals.hpp"
 37 #if INCLUDE_ZGC
 38 #include "gc/z/zBarrierSetRuntime.hpp"
 39 #include "gc/z/zThreadLocalData.hpp"
 40 #endif
 41 #include "jvmci/jvmciCompilerToVM.hpp"
 42 #include "jvmci/jvmciEnv.hpp"
 43 #include "jvmci/vmStructs_jvmci.hpp"
 44 #include "memory/universe.hpp"
 45 #include "oops/compressedOops.hpp"
 46 #include "oops/klass.inline.hpp"
 47 #include "prims/jvmtiExport.hpp"
 48 #ifdef COMPILER2
 49 #include "opto/c2compiler.hpp"
 50 #endif
 51 #include "runtime/flags/jvmFlag.hpp"
 52 #include "runtime/sharedRuntime.hpp"
 53 #include "runtime/stubRoutines.hpp"
 54 #include "utilities/resourceHash.hpp"
 55 
 56 int CompilerToVM::Data::oopDesc_klass_offset_in_bytes;
 57 int CompilerToVM::Data::arrayOopDesc_length_offset_in_bytes;
 58 
 59 int CompilerToVM::Data::Klass_vtable_start_offset;
 60 int CompilerToVM::Data::Klass_vtable_length_offset;
 61 
 62 int CompilerToVM::Data::Method_extra_stack_entries;
 63 
 64 address CompilerToVM::Data::SharedRuntime_ic_miss_stub;
 65 address CompilerToVM::Data::SharedRuntime_handle_wrong_method_stub;
 66 address CompilerToVM::Data::SharedRuntime_deopt_blob_unpack;
 67 address CompilerToVM::Data::SharedRuntime_deopt_blob_unpack_with_exception_in_tls;
 68 address CompilerToVM::Data::SharedRuntime_deopt_blob_uncommon_trap;
 69 address CompilerToVM::Data::SharedRuntime_polling_page_return_handler;
 70 address CompilerToVM::Data::SharedRuntime_throw_delayed_StackOverflowError_entry;
 71 
 72 address CompilerToVM::Data::nmethod_entry_barrier;
 73 int CompilerToVM::Data::thread_disarmed_guard_value_offset;
 74 int CompilerToVM::Data::thread_address_bad_mask_offset;
 75 
 76 address CompilerToVM::Data::ZBarrierSetRuntime_load_barrier_on_oop_field_preloaded;
 77 address CompilerToVM::Data::ZBarrierSetRuntime_load_barrier_on_weak_oop_field_preloaded;
 78 address CompilerToVM::Data::ZBarrierSetRuntime_load_barrier_on_phantom_oop_field_preloaded;
 79 address CompilerToVM::Data::ZBarrierSetRuntime_weak_load_barrier_on_oop_field_preloaded;
 80 address CompilerToVM::Data::ZBarrierSetRuntime_weak_load_barrier_on_weak_oop_field_preloaded;
 81 address CompilerToVM::Data::ZBarrierSetRuntime_weak_load_barrier_on_phantom_oop_field_preloaded;
 82 address CompilerToVM::Data::ZBarrierSetRuntime_load_barrier_on_oop_array;
 83 address CompilerToVM::Data::ZBarrierSetRuntime_clone;
 84 
 85 address CompilerToVM::Data::ZPointerVectorLoadBadMask_address;
 86 address CompilerToVM::Data::ZPointerVectorStoreBadMask_address;
 87 address CompilerToVM::Data::ZPointerVectorStoreGoodMask_address;
 88 
 89 bool CompilerToVM::Data::continuations_enabled;
 90 
 91 #ifdef AARCH64
 92 int CompilerToVM::Data::BarrierSetAssembler_nmethod_patching_type;
 93 address CompilerToVM::Data::BarrierSetAssembler_patching_epoch_addr;
 94 #endif
 95 
 96 size_t CompilerToVM::Data::ThreadLocalAllocBuffer_alignment_reserve;
 97 
 98 CollectedHeap* CompilerToVM::Data::Universe_collectedHeap;
 99 int CompilerToVM::Data::Universe_base_vtable_size;
100 address CompilerToVM::Data::Universe_narrow_oop_base;
101 int CompilerToVM::Data::Universe_narrow_oop_shift;
102 address CompilerToVM::Data::Universe_narrow_klass_base;
103 int CompilerToVM::Data::Universe_narrow_klass_shift;
104 void* CompilerToVM::Data::Universe_non_oop_bits;
105 uintptr_t CompilerToVM::Data::Universe_verify_oop_mask;
106 uintptr_t CompilerToVM::Data::Universe_verify_oop_bits;
107 
108 bool       CompilerToVM::Data::_supports_inline_contig_alloc;
109 HeapWord** CompilerToVM::Data::_heap_end_addr;
110 HeapWord* volatile* CompilerToVM::Data::_heap_top_addr;
111 int CompilerToVM::Data::_max_oop_map_stack_offset;
112 int CompilerToVM::Data::_fields_annotations_base_offset;
113 
114 CardTable::CardValue* CompilerToVM::Data::cardtable_start_address;
115 int CompilerToVM::Data::cardtable_shift;
116 
117 #ifdef X86
118 int CompilerToVM::Data::L1_line_size;
119 #endif
120 
121 size_t CompilerToVM::Data::vm_page_size;
122 
123 int CompilerToVM::Data::sizeof_vtableEntry = sizeof(vtableEntry);
124 int CompilerToVM::Data::sizeof_ExceptionTableElement = sizeof(ExceptionTableElement);
125 int CompilerToVM::Data::sizeof_LocalVariableTableElement = sizeof(LocalVariableTableElement);
126 int CompilerToVM::Data::sizeof_ConstantPool = sizeof(ConstantPool);
127 int CompilerToVM::Data::sizeof_narrowKlass = sizeof(narrowKlass);
128 int CompilerToVM::Data::sizeof_arrayOopDesc = sizeof(arrayOopDesc);
129 int CompilerToVM::Data::sizeof_BasicLock = sizeof(BasicLock);
130 #if INCLUDE_ZGC
131 int CompilerToVM::Data::sizeof_ZStoreBarrierEntry = sizeof(ZStoreBarrierEntry);
132 #endif
133 
134 address CompilerToVM::Data::dsin;
135 address CompilerToVM::Data::dcos;
136 address CompilerToVM::Data::dtan;
137 address CompilerToVM::Data::dtanh;
138 address CompilerToVM::Data::dexp;
139 address CompilerToVM::Data::dlog;
140 address CompilerToVM::Data::dlog10;
141 address CompilerToVM::Data::dpow;
142 
143 address CompilerToVM::Data::symbol_init;
144 address CompilerToVM::Data::symbol_clinit;
145 
146 int CompilerToVM::Data::data_section_item_alignment;
147 
148 JVMTI_ONLY( int* CompilerToVM::Data::_should_notify_object_alloc; )
149 
150 void CompilerToVM::Data::initialize(JVMCI_TRAPS) {
151   oopDesc_klass_offset_in_bytes = 1; //oopDesc::klass_offset_in_bytes();
152   arrayOopDesc_length_offset_in_bytes = arrayOopDesc::length_offset_in_bytes();
153 
154   Klass_vtable_start_offset = in_bytes(Klass::vtable_start_offset());
155   Klass_vtable_length_offset = in_bytes(Klass::vtable_length_offset());
156 
157   Method_extra_stack_entries = Method::extra_stack_entries();
158 
159   SharedRuntime_ic_miss_stub = SharedRuntime::get_ic_miss_stub();
160   SharedRuntime_handle_wrong_method_stub = SharedRuntime::get_handle_wrong_method_stub();
161   SharedRuntime_deopt_blob_unpack = SharedRuntime::deopt_blob()->unpack();
162   SharedRuntime_deopt_blob_unpack_with_exception_in_tls = SharedRuntime::deopt_blob()->unpack_with_exception_in_tls();
163   SharedRuntime_deopt_blob_uncommon_trap = SharedRuntime::deopt_blob()->uncommon_trap();
164   SharedRuntime_polling_page_return_handler = SharedRuntime::polling_page_return_handler_blob()->entry_point();
165   SharedRuntime_throw_delayed_StackOverflowError_entry = SharedRuntime::throw_delayed_StackOverflowError_entry();
166 
167   BarrierSetNMethod* bs_nm = BarrierSet::barrier_set()->barrier_set_nmethod();
168   if (bs_nm != nullptr) {
169     thread_disarmed_guard_value_offset = in_bytes(bs_nm->thread_disarmed_guard_value_offset());
170     nmethod_entry_barrier = StubRoutines::method_entry_barrier();
171     BarrierSetAssembler* bs_asm = BarrierSet::barrier_set()->barrier_set_assembler();
172     AARCH64_ONLY(BarrierSetAssembler_nmethod_patching_type = (int) bs_asm->nmethod_patching_type());
173     AARCH64_ONLY(BarrierSetAssembler_patching_epoch_addr = bs_asm->patching_epoch_addr());
174   }
175 
176 #if INCLUDE_ZGC
177   if (UseZGC) {
178     ZPointerVectorLoadBadMask_address   = (address) &ZPointerVectorLoadBadMask;
179     ZPointerVectorStoreBadMask_address  = (address) &ZPointerVectorStoreBadMask;
180     ZPointerVectorStoreGoodMask_address = (address) &ZPointerVectorStoreGoodMask;
181   }
182 #endif
183 
184   continuations_enabled = Continuations::enabled();
185 
186   ThreadLocalAllocBuffer_alignment_reserve = ThreadLocalAllocBuffer::alignment_reserve();
187 
188   Universe_collectedHeap = Universe::heap();
189   Universe_base_vtable_size = Universe::base_vtable_size();
190   if (UseCompressedOops) {
191     Universe_narrow_oop_base = CompressedOops::base();
192     Universe_narrow_oop_shift = CompressedOops::shift();
193   } else {
194     Universe_narrow_oop_base = nullptr;
195     Universe_narrow_oop_shift = 0;
196   }
197   if (UseCompressedClassPointers) {
198     Universe_narrow_klass_base = CompressedKlassPointers::base();
199     Universe_narrow_klass_shift = CompressedKlassPointers::shift();
200   } else {
201     Universe_narrow_klass_base = nullptr;
202     Universe_narrow_klass_shift = 0;
203   }
204   Universe_non_oop_bits = Universe::non_oop_word();
205   Universe_verify_oop_mask = Universe::verify_oop_mask();
206   Universe_verify_oop_bits = Universe::verify_oop_bits();
207 
208   _supports_inline_contig_alloc = false;
209   _heap_end_addr = (HeapWord**) -1;
210   _heap_top_addr = (HeapWord* volatile*) -1;
211 
212   _max_oop_map_stack_offset = (OopMapValue::register_mask - VMRegImpl::stack2reg(0)->value()) * VMRegImpl::stack_slot_size;
213   int max_oop_map_stack_index = _max_oop_map_stack_offset / VMRegImpl::stack_slot_size;
214   assert(OopMapValue::legal_vm_reg_name(VMRegImpl::stack2reg(max_oop_map_stack_index)), "should be valid");
215   assert(!OopMapValue::legal_vm_reg_name(VMRegImpl::stack2reg(max_oop_map_stack_index + 1)), "should be invalid");
216 
217   symbol_init = (address) vmSymbols::object_initializer_name();
218   symbol_clinit = (address) vmSymbols::class_initializer_name();
219 
220   _fields_annotations_base_offset = Array<AnnotationArray*>::base_offset_in_bytes();
221 
222   data_section_item_alignment = relocInfo::addr_unit();
223 
224   JVMTI_ONLY( _should_notify_object_alloc = &JvmtiExport::_should_notify_object_alloc; )
225 
226   BarrierSet* bs = BarrierSet::barrier_set();
227   if (bs->is_a(BarrierSet::CardTableBarrierSet)) {
228     CardTable::CardValue* base = ci_card_table_address();
229     assert(base != nullptr, "unexpected byte_map_base");
230     cardtable_start_address = base;
231     cardtable_shift = CardTable::card_shift();
232   } else {
233     // No card mark barriers
234     cardtable_start_address = nullptr;
235     cardtable_shift = 0;
236   }
237 
238 #ifdef X86
239   L1_line_size = VM_Version::L1_line_size();
240 #endif
241 
242   vm_page_size = os::vm_page_size();
243 
244 #define SET_TRIGFUNC(name)                                      \
245   if (StubRoutines::name() != nullptr) {                        \
246     name = StubRoutines::name();                                \
247   } else {                                                      \
248     name = CAST_FROM_FN_PTR(address, SharedRuntime::name);      \
249   }
250 
251   SET_TRIGFUNC(dsin);
252   SET_TRIGFUNC(dcos);
253   SET_TRIGFUNC(dtan);
254   SET_TRIGFUNC(dexp);
255   SET_TRIGFUNC(dlog10);
256   SET_TRIGFUNC(dlog);
257   SET_TRIGFUNC(dpow);
258 
259 #undef SET_TRIGFUNC
260 
261 #define SET_TRIGFUNC_OR_NULL(name)                              \
262   if (StubRoutines::name() != nullptr) {                        \
263     name = StubRoutines::name();                                \
264   } else {                                                      \
265     name = nullptr;                                             \
266   }
267 
268   SET_TRIGFUNC_OR_NULL(dtanh);
269 
270 #undef SET_TRIGFUNC_OR_NULL
271 
272 
273 }
274 
275 static jboolean is_c1_supported(vmIntrinsics::ID id){
276     jboolean supported = false;
277 #ifdef COMPILER1
278     supported = (jboolean) Compiler::is_intrinsic_supported(id);
279 #endif
280     return supported;
281 }
282 
283 static jboolean is_c2_supported(vmIntrinsics::ID id){
284     jboolean supported = false;
285 #ifdef COMPILER2
286     supported = (jboolean) C2Compiler::is_intrinsic_supported(id);
287 #endif
288     return supported;
289 }
290 
291 JVMCIObjectArray CompilerToVM::initialize_intrinsics(JVMCI_TRAPS) {
292   int len = vmIntrinsics::number_of_intrinsics() - 1; // Exclude vmIntrinsics::_none, which is 0
293   JVMCIObjectArray vmIntrinsics = JVMCIENV->new_VMIntrinsicMethod_array(len, JVMCI_CHECK_NULL);
294   int index = 0;
295   vmSymbolID kls_sid = vmSymbolID::NO_SID;
296   JVMCIObject kls_str;
297 #define VM_SYMBOL_TO_STRING(s) \
298   JVMCIENV->create_string(vmSymbols::symbol_at(VM_SYMBOL_ENUM_NAME(s)), JVMCI_CHECK_NULL)
299 #define VM_INTRINSIC_INFO(id, kls, name, sig, ignore_fcode) {            \
300     vmSymbolID sid = VM_SYMBOL_ENUM_NAME(kls);                           \
301     if (kls_sid != sid) {                                                \
302       kls_str = VM_SYMBOL_TO_STRING(kls);                                \
303       kls_sid = sid;                                                     \
304     }                                                                    \
305     JVMCIObject name_str = VM_SYMBOL_TO_STRING(name);                    \
306     JVMCIObject sig_str = VM_SYMBOL_TO_STRING(sig);                      \
307     JVMCIObject vmIntrinsicMethod = JVMCIENV->new_VMIntrinsicMethod(kls_str, name_str, sig_str, (jint) vmIntrinsics::id, \
308                                     (jboolean) vmIntrinsics::is_intrinsic_available(vmIntrinsics::id),                   \
309                                     is_c1_supported(vmIntrinsics::id),                       \
310                                     is_c2_supported(vmIntrinsics::id), JVMCI_CHECK_NULL);    \
311     JVMCIENV->put_object_at(vmIntrinsics, index++, vmIntrinsicMethod);   \
312   }
313 
314   // VM_INTRINSICS_DO does *not* iterate over vmIntrinsics::_none
315   VM_INTRINSICS_DO(VM_INTRINSIC_INFO, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_ALIAS_IGNORE)
316 #undef VM_SYMBOL_TO_STRING
317 #undef VM_INTRINSIC_INFO
318 
319   assert(index == len, "must be");
320   return vmIntrinsics;
321 }
322 
323 #define PREDEFINED_CONFIG_FLAGS(do_bool_flag, do_int_flag, do_intx_flag, do_uintx_flag) \
324   do_int_flag(AllocateInstancePrefetchLines)                               \
325   do_int_flag(AllocatePrefetchDistance)                                    \
326   do_intx_flag(AllocatePrefetchInstr)                                      \
327   do_int_flag(AllocatePrefetchLines)                                       \
328   do_int_flag(AllocatePrefetchStepSize)                                    \
329   do_int_flag(AllocatePrefetchStyle)                                       \
330   do_intx_flag(BciProfileWidth)                                            \
331   do_bool_flag(BootstrapJVMCI)                                             \
332   do_bool_flag(CITime)                                                     \
333   do_bool_flag(CITimeEach)                                                 \
334   do_uintx_flag(CodeCacheSegmentSize)                                      \
335   do_intx_flag(CodeEntryAlignment)                                         \
336   do_int_flag(ContendedPaddingWidth)                                       \
337   do_bool_flag(DontCompileHugeMethods)                                     \
338   do_bool_flag(EagerJVMCI)                                                 \
339   do_bool_flag(EnableContended)                                            \
340   do_bool_flag(FoldStableValues)                                           \
341   do_bool_flag(ForceUnreachable)                                           \
342   do_intx_flag(HugeMethodLimit)                                            \
343   do_bool_flag(Inline)                                                     \
344   do_intx_flag(JVMCICounterSize)                                           \
345   do_bool_flag(JVMCIPrintProperties)                                       \
346   do_int_flag(ObjectAlignmentInBytes)                                      \
347   do_bool_flag(PrintInlining)                                              \
348   do_bool_flag(ReduceInitialCardMarks)                                     \
349   do_bool_flag(RestrictContended)                                          \
350   do_intx_flag(StackReservedPages)                                         \
351   do_intx_flag(StackShadowPages)                                           \
352   do_uintx_flag(TLABWasteIncrement)                                        \
353   do_intx_flag(TypeProfileWidth)                                           \
354   do_bool_flag(UseAESIntrinsics)                                           \
355   X86_ONLY(do_int_flag(UseAVX))                                            \
356   do_bool_flag(UseCRC32Intrinsics)                                         \
357   do_bool_flag(UseAdler32Intrinsics)                                       \
358   do_bool_flag(UseCompressedClassPointers)                                 \
359   do_bool_flag(UseCompressedOops)                                          \
360   X86_ONLY(do_bool_flag(UseCountLeadingZerosInstruction))                  \
361   X86_ONLY(do_bool_flag(UseCountTrailingZerosInstruction))                 \
362   do_bool_flag(UseG1GC)                                                    \
363   do_bool_flag(UseParallelGC)                                              \
364   do_bool_flag(UseSerialGC)                                                \
365   do_bool_flag(UseZGC)                                                     \
366   do_bool_flag(UseEpsilonGC)                                               \
367   COMPILER2_PRESENT(do_bool_flag(UseMontgomeryMultiplyIntrinsic))          \
368   COMPILER2_PRESENT(do_bool_flag(UseMontgomerySquareIntrinsic))            \
369   COMPILER2_PRESENT(do_bool_flag(UseMulAddIntrinsic))                      \
370   COMPILER2_PRESENT(do_bool_flag(UseMultiplyToLenIntrinsic))               \
371   do_bool_flag(UsePopCountInstruction)                                     \
372   do_bool_flag(UseSHA1Intrinsics)                                          \
373   do_bool_flag(UseSHA256Intrinsics)                                        \
374   do_bool_flag(UseSHA512Intrinsics)                                        \
375   X86_ONLY(do_int_flag(UseSSE))                                            \
376   COMPILER2_PRESENT(do_bool_flag(UseSquareToLenIntrinsic))                 \
377   do_bool_flag(UseTLAB)                                                    \
378   do_bool_flag(VerifyOops)                                                 \
379 
380 #define BOXED_BOOLEAN(name, value) name = ((jboolean)(value) ? boxedTrue : boxedFalse)
381 #define BOXED_DOUBLE(name, value) do { jvalue p; p.d = (jdouble) (value); name = JVMCIENV->create_box(T_DOUBLE, &p, JVMCI_CHECK_NULL);} while(0)
382 #define BOXED_LONG(name, value) \
383   do { \
384     jvalue p; p.j = (jlong) (value); \
385     JVMCIObject* e = longs.get(p.j); \
386     if (e == nullptr) { \
387       JVMCIObject h = JVMCIENV->create_box(T_LONG, &p, JVMCI_CHECK_NULL); \
388       longs.put(p.j, h); \
389       name = h; \
390     } else { \
391       name = (*e); \
392     } \
393   } while (0)
394 
395 #define CSTRING_TO_JSTRING(name, value) \
396   JVMCIObject name; \
397   do { \
398     if (value != nullptr) { \
399       JVMCIObject* e = strings.get(value); \
400       if (e == nullptr) { \
401         JVMCIObject h = JVMCIENV->create_string(value, JVMCI_CHECK_NULL); \
402         strings.put(value, h); \
403         name = h; \
404       } else { \
405         name = (*e); \
406       } \
407     } \
408   } while (0)
409 
410 jobjectArray readConfiguration0(JNIEnv *env, JVMCI_TRAPS) {
411   JavaThread* THREAD = JavaThread::current(); // For exception macros.
412   ResourceHashtable<jlong, JVMCIObject> longs;
413   ResourceHashtable<const char*, JVMCIObject,
414                     256, AnyObj::RESOURCE_AREA, mtInternal,
415                     &CompilerToVM::cstring_hash, &CompilerToVM::cstring_equals> strings;
416 
417   jvalue prim;
418   prim.z = true;  JVMCIObject boxedTrue =  JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL);
419   prim.z = false; JVMCIObject boxedFalse = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL);
420 
421   CompilerToVM::Data::initialize(JVMCI_CHECK_NULL);
422 
423   JVMCIENV->VMField_initialize(JVMCI_CHECK_NULL);
424   JVMCIENV->VMFlag_initialize(JVMCI_CHECK_NULL);
425   JVMCIENV->VMIntrinsicMethod_initialize(JVMCI_CHECK_NULL);
426 
427   int len = JVMCIVMStructs::localHotSpotVMStructs_count();
428   JVMCIObjectArray vmFields = JVMCIENV->new_VMField_array(len, JVMCI_CHECK_NULL);
429   for (int i = 0; i < len ; i++) {
430     VMStructEntry vmField = JVMCIVMStructs::localHotSpotVMStructs[i];
431     const size_t name_buf_size = strlen(vmField.typeName) + strlen(vmField.fieldName) + 2 + 1 /* "::" */;
432     char* name_buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, name_buf_size);
433     os::snprintf_checked(name_buf, name_buf_size, "%s::%s", vmField.typeName, vmField.fieldName);
434     CSTRING_TO_JSTRING(name, name_buf);
435     CSTRING_TO_JSTRING(type, vmField.typeString);
436     JVMCIObject box;
437     if (vmField.isStatic && vmField.typeString != nullptr) {
438       if (strcmp(vmField.typeString, "bool") == 0) {
439         BOXED_BOOLEAN(box, *(jbyte*) vmField.address);
440         assert(box.is_non_null(), "must have a box");
441       } else if (strcmp(vmField.typeString, "int") == 0 ||
442                  strcmp(vmField.typeString, "jint") == 0 ||
443                  strcmp(vmField.typeString, "uint") == 0 ||
444                  strcmp(vmField.typeString, "uint32_t") == 0) {
445         BOXED_LONG(box, *(jint*) vmField.address);
446         assert(box.is_non_null(), "must have a box");
447       } else if (strcmp(vmField.typeString, "uint64_t") == 0) {
448         BOXED_LONG(box, *(uint64_t*) vmField.address);
449         assert(box.is_non_null(), "must have a box");
450       } else if (strcmp(vmField.typeString, "address") == 0 ||
451                  strcmp(vmField.typeString, "intptr_t") == 0 ||
452                  strcmp(vmField.typeString, "uintptr_t") == 0 ||
453                  strcmp(vmField.typeString, "OopHandle") == 0 ||
454                  strcmp(vmField.typeString, "size_t") == 0 ||
455                  // All foo* types are addresses.
456                  vmField.typeString[strlen(vmField.typeString) - 1] == '*') {
457         BOXED_LONG(box, *((address*) vmField.address));
458         assert(box.is_non_null(), "must have a box");
459       } else {
460         JVMCI_ERROR_NULL("VM field %s has unsupported type %s", name_buf, vmField.typeString);
461       }
462     }
463     JVMCIObject vmFieldObj = JVMCIENV->new_VMField(name, type, vmField.offset, (jlong) vmField.address, box, JVMCI_CHECK_NULL);
464     JVMCIENV->put_object_at(vmFields, i, vmFieldObj);
465   }
466 
467   int ints_len = JVMCIVMStructs::localHotSpotVMIntConstants_count();
468   int longs_len = JVMCIVMStructs::localHotSpotVMLongConstants_count();
469   len = ints_len + longs_len;
470   JVMCIObjectArray vmConstants = JVMCIENV->new_Object_array(len * 2, JVMCI_CHECK_NULL);
471   int insert = 0;
472   for (int i = 0; i < ints_len ; i++) {
473     VMIntConstantEntry c = JVMCIVMStructs::localHotSpotVMIntConstants[i];
474     CSTRING_TO_JSTRING(name, c.name);
475     JVMCIObject value;
476     BOXED_LONG(value, c.value);
477     JVMCIENV->put_object_at(vmConstants, insert++, name);
478     JVMCIENV->put_object_at(vmConstants, insert++, value);
479   }
480   for (int i = 0; i < longs_len ; i++) {
481     VMLongConstantEntry c = JVMCIVMStructs::localHotSpotVMLongConstants[i];
482     CSTRING_TO_JSTRING(name, c.name);
483     JVMCIObject value;
484     BOXED_LONG(value, c.value);
485     JVMCIENV->put_object_at(vmConstants, insert++, name);
486     JVMCIENV->put_object_at(vmConstants, insert++, value);
487   }
488   assert(insert == len * 2, "must be");
489 
490   len = JVMCIVMStructs::localHotSpotVMAddresses_count();
491   JVMCIObjectArray vmAddresses = JVMCIENV->new_Object_array(len * 2, JVMCI_CHECK_NULL);
492   for (int i = 0; i < len ; i++) {
493     VMAddressEntry a = JVMCIVMStructs::localHotSpotVMAddresses[i];
494     CSTRING_TO_JSTRING(name, a.name);
495     JVMCIObject value;
496     BOXED_LONG(value, a.value);
497     JVMCIENV->put_object_at(vmAddresses, i * 2, name);
498     JVMCIENV->put_object_at(vmAddresses, i * 2 + 1, value);
499   }
500 
501 #define COUNT_FLAG(ignore) +1
502 #ifdef ASSERT
503 #define CHECK_FLAG(type, name) { \
504   const JVMFlag* flag = JVMFlag::find_declared_flag(#name); \
505   assert(flag != nullptr, "No such flag named " #name); \
506   assert(flag->is_##type(), "JVMFlag " #name " is not of type " #type); \
507 }
508 #else
509 #define CHECK_FLAG(type, name)
510 #endif
511 
512 #define ADD_FLAG(type, name, convert) {                                                \
513   CHECK_FLAG(type, name)                                                               \
514   CSTRING_TO_JSTRING(fname, #name);                                                    \
515   CSTRING_TO_JSTRING(ftype, #type);                                                    \
516   convert(value, name);                                                                \
517   JVMCIObject vmFlagObj = JVMCIENV->new_VMFlag(fname, ftype, value, JVMCI_CHECK_NULL); \
518   JVMCIENV->put_object_at(vmFlags, i++, vmFlagObj);                                    \
519 }
520 #define ADD_BOOL_FLAG(name)  ADD_FLAG(bool, name, BOXED_BOOLEAN)
521 #define ADD_INT_FLAG(name)   ADD_FLAG(int, name, BOXED_LONG)
522 #define ADD_INTX_FLAG(name)  ADD_FLAG(intx, name, BOXED_LONG)
523 #define ADD_UINTX_FLAG(name) ADD_FLAG(uintx, name, BOXED_LONG)
524 
525   len = 0 + PREDEFINED_CONFIG_FLAGS(COUNT_FLAG, COUNT_FLAG, COUNT_FLAG, COUNT_FLAG);
526   JVMCIObjectArray vmFlags = JVMCIENV->new_VMFlag_array(len, JVMCI_CHECK_NULL);
527   int i = 0;
528   JVMCIObject value;
529   PREDEFINED_CONFIG_FLAGS(ADD_BOOL_FLAG, ADD_INT_FLAG, ADD_INTX_FLAG, ADD_UINTX_FLAG)
530 
531   JVMCIObjectArray vmIntrinsics = CompilerToVM::initialize_intrinsics(JVMCI_CHECK_NULL);
532 
533   JVMCIObjectArray data = JVMCIENV->new_Object_array(5, JVMCI_CHECK_NULL);
534   JVMCIENV->put_object_at(data, 0, vmFields);
535   JVMCIENV->put_object_at(data, 1, vmConstants);
536   JVMCIENV->put_object_at(data, 2, vmAddresses);
537   JVMCIENV->put_object_at(data, 3, vmFlags);
538   JVMCIENV->put_object_at(data, 4, vmIntrinsics);
539 
540   return JVMCIENV->get_jobjectArray(data);
541 }