1 /*
2 * Copyright (c) 2011, 2018, 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 // no precompiled headers
25 #include "ci/ciUtilities.hpp"
26 #include "gc/shared/barrierSet.hpp"
27 #include "gc/shared/cardTable.hpp"
28 #include "memory/oopFactory.hpp"
29 #include "oops/objArrayOop.inline.hpp"
30 #include "jvmci/jvmciRuntime.hpp"
31 #include "jvmci/jvmciCompilerToVM.hpp"
32 #include "jvmci/vmStructs_jvmci.hpp"
33 #include "runtime/flags/jvmFlag.hpp"
34 #include "runtime/handles.inline.hpp"
35 #include "runtime/sharedRuntime.hpp"
36 #include "utilities/resourceHash.hpp"
37
38
39 int CompilerToVM::Data::Klass_vtable_start_offset;
40 int CompilerToVM::Data::Klass_vtable_length_offset;
41
42 int CompilerToVM::Data::Method_extra_stack_entries;
43
44 address CompilerToVM::Data::SharedRuntime_ic_miss_stub;
45 address CompilerToVM::Data::SharedRuntime_handle_wrong_method_stub;
46 address CompilerToVM::Data::SharedRuntime_deopt_blob_unpack;
47 address CompilerToVM::Data::SharedRuntime_deopt_blob_uncommon_trap;
48
49 size_t CompilerToVM::Data::ThreadLocalAllocBuffer_alignment_reserve;
50
51 CollectedHeap* CompilerToVM::Data::Universe_collectedHeap;
52 int CompilerToVM::Data::Universe_base_vtable_size;
53 address CompilerToVM::Data::Universe_narrow_oop_base;
54 int CompilerToVM::Data::Universe_narrow_oop_shift;
55 address CompilerToVM::Data::Universe_narrow_klass_base;
56 int CompilerToVM::Data::Universe_narrow_klass_shift;
57 void* CompilerToVM::Data::Universe_non_oop_bits;
58 uintptr_t CompilerToVM::Data::Universe_verify_oop_mask;
59 uintptr_t CompilerToVM::Data::Universe_verify_oop_bits;
60
61 bool CompilerToVM::Data::_supports_inline_contig_alloc;
62 HeapWord** CompilerToVM::Data::_heap_end_addr;
63 HeapWord* volatile* CompilerToVM::Data::_heap_top_addr;
64 int CompilerToVM::Data::_max_oop_map_stack_offset;
65 int CompilerToVM::Data::_fields_annotations_base_offset;
66
67 CardTable::CardValue* CompilerToVM::Data::cardtable_start_address;
68 int CompilerToVM::Data::cardtable_shift;
69
70 int CompilerToVM::Data::vm_page_size;
71
72 int CompilerToVM::Data::sizeof_vtableEntry = sizeof(vtableEntry);
73 int CompilerToVM::Data::sizeof_ExceptionTableElement = sizeof(ExceptionTableElement);
74 int CompilerToVM::Data::sizeof_LocalVariableTableElement = sizeof(LocalVariableTableElement);
75 int CompilerToVM::Data::sizeof_ConstantPool = sizeof(ConstantPool);
76 int CompilerToVM::Data::sizeof_narrowKlass = sizeof(narrowKlass);
77 int CompilerToVM::Data::sizeof_arrayOopDesc = sizeof(arrayOopDesc);
78 int CompilerToVM::Data::sizeof_BasicLock = sizeof(BasicLock);
79
80 address CompilerToVM::Data::dsin;
81 address CompilerToVM::Data::dcos;
82 address CompilerToVM::Data::dtan;
83 address CompilerToVM::Data::dexp;
84 address CompilerToVM::Data::dlog;
85 address CompilerToVM::Data::dlog10;
86 address CompilerToVM::Data::dpow;
87
88 address CompilerToVM::Data::symbol_init;
89 address CompilerToVM::Data::symbol_clinit;
90
91 void CompilerToVM::Data::initialize(TRAPS) {
92 Klass_vtable_start_offset = in_bytes(Klass::vtable_start_offset());
93 Klass_vtable_length_offset = in_bytes(Klass::vtable_length_offset());
94
95 Method_extra_stack_entries = Method::extra_stack_entries();
96
97 SharedRuntime_ic_miss_stub = SharedRuntime::get_ic_miss_stub();
98 SharedRuntime_handle_wrong_method_stub = SharedRuntime::get_handle_wrong_method_stub();
99 SharedRuntime_deopt_blob_unpack = SharedRuntime::deopt_blob()->unpack();
100 SharedRuntime_deopt_blob_uncommon_trap = SharedRuntime::deopt_blob()->uncommon_trap();
101
102 ThreadLocalAllocBuffer_alignment_reserve = ThreadLocalAllocBuffer::alignment_reserve();
103
104 Universe_collectedHeap = Universe::heap();
105 Universe_base_vtable_size = Universe::base_vtable_size();
106 Universe_narrow_oop_base = Universe::narrow_oop_base();
107 Universe_narrow_oop_shift = Universe::narrow_oop_shift();
108 Universe_narrow_klass_base = Universe::narrow_klass_base();
109 Universe_narrow_klass_shift = Universe::narrow_klass_shift();
110 Universe_non_oop_bits = Universe::non_oop_word();
111 Universe_verify_oop_mask = Universe::verify_oop_mask();
112 Universe_verify_oop_bits = Universe::verify_oop_bits();
113
114 _supports_inline_contig_alloc = Universe::heap()->supports_inline_contig_alloc();
115 _heap_end_addr = _supports_inline_contig_alloc ? Universe::heap()->end_addr() : (HeapWord**) -1;
116 _heap_top_addr = _supports_inline_contig_alloc ? Universe::heap()->top_addr() : (HeapWord* volatile*) -1;
117
118 _max_oop_map_stack_offset = (OopMapValue::register_mask - VMRegImpl::stack2reg(0)->value()) * VMRegImpl::stack_slot_size;
119 int max_oop_map_stack_index = _max_oop_map_stack_offset / VMRegImpl::stack_slot_size;
120 assert(OopMapValue::legal_vm_reg_name(VMRegImpl::stack2reg(max_oop_map_stack_index)), "should be valid");
121 assert(!OopMapValue::legal_vm_reg_name(VMRegImpl::stack2reg(max_oop_map_stack_index + 1)), "should be invalid");
122
123 symbol_init = (address) vmSymbols::object_initializer_name();
124 symbol_clinit = (address) vmSymbols::class_initializer_name();
125
126 _fields_annotations_base_offset = Array<AnnotationArray*>::base_offset_in_bytes();
127
128 BarrierSet* bs = BarrierSet::barrier_set();
129 if (bs->is_a(BarrierSet::CardTableBarrierSet)) {
130 CardTable::CardValue* base = ci_card_table_address();
131 assert(base != NULL, "unexpected byte_map_base");
132 cardtable_start_address = base;
133 cardtable_shift = CardTable::card_shift;
134 } else {
135 // No card mark barriers
136 cardtable_start_address = 0;
137 cardtable_shift = 0;
138 }
139
140 vm_page_size = os::vm_page_size();
141
142 #define SET_TRIGFUNC(name) \
143 if (StubRoutines::name() != NULL) { \
144 name = StubRoutines::name(); \
145 } else { \
146 name = CAST_FROM_FN_PTR(address, SharedRuntime::name); \
147 }
148
149 SET_TRIGFUNC(dsin);
150 SET_TRIGFUNC(dcos);
151 SET_TRIGFUNC(dtan);
152 SET_TRIGFUNC(dexp);
153 SET_TRIGFUNC(dlog10);
154 SET_TRIGFUNC(dlog);
155 SET_TRIGFUNC(dpow);
156
157 #undef SET_TRIGFUNC
158 }
159
160 objArrayHandle CompilerToVM::initialize_intrinsics(TRAPS) {
161 objArrayHandle vmIntrinsics = oopFactory::new_objArray_handle(VMIntrinsicMethod::klass(), (vmIntrinsics::ID_LIMIT - 1), CHECK_(objArrayHandle()));
162 int index = 0;
163 // The intrinsics for a class are usually adjacent to each other.
164 // When they are, the string for the class name can be reused.
165 vmSymbols::SID kls_sid = vmSymbols::NO_SID;
166 Handle kls_str;
167 #define VM_SYMBOL_TO_STRING(s) \
168 java_lang_String::create_from_symbol(vmSymbols::symbol_at(vmSymbols::VM_SYMBOL_ENUM_NAME(s)), CHECK_(objArrayHandle()))
169 #define VM_INTRINSIC_INFO(id, kls, name, sig, ignore_fcode) { \
170 instanceHandle vmIntrinsicMethod = InstanceKlass::cast(VMIntrinsicMethod::klass())->allocate_instance_handle(CHECK_(objArrayHandle())); \
171 vmSymbols::SID sid = vmSymbols::VM_SYMBOL_ENUM_NAME(kls); \
172 if (kls_sid != sid) { \
173 kls_str = VM_SYMBOL_TO_STRING(kls); \
174 kls_sid = sid; \
175 } \
176 Handle name_str = VM_SYMBOL_TO_STRING(name); \
177 Handle sig_str = VM_SYMBOL_TO_STRING(sig); \
178 VMIntrinsicMethod::set_declaringClass(vmIntrinsicMethod, kls_str()); \
179 VMIntrinsicMethod::set_name(vmIntrinsicMethod, name_str()); \
180 VMIntrinsicMethod::set_descriptor(vmIntrinsicMethod, sig_str()); \
181 VMIntrinsicMethod::set_id(vmIntrinsicMethod, vmIntrinsics::id); \
182 vmIntrinsics->obj_at_put(index++, vmIntrinsicMethod()); \
183 }
184
185 VM_INTRINSICS_DO(VM_INTRINSIC_INFO, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_ALIAS_IGNORE)
186 #undef VM_SYMBOL_TO_STRING
187 #undef VM_INTRINSIC_INFO
188 assert(index == vmIntrinsics::ID_LIMIT - 1, "must be");
189
190 return vmIntrinsics;
191 }
192
193 /**
194 * The set of VM flags known to be used.
195 */
196 #define PREDEFINED_CONFIG_FLAGS(do_bool_flag, do_intx_flag, do_uintx_flag) \
197 do_intx_flag(AllocateInstancePrefetchLines) \
198 do_intx_flag(AllocatePrefetchDistance) \
199 do_intx_flag(AllocatePrefetchInstr) \
200 do_intx_flag(AllocatePrefetchLines) \
201 do_intx_flag(AllocatePrefetchStepSize) \
202 do_intx_flag(AllocatePrefetchStyle) \
203 do_intx_flag(BciProfileWidth) \
204 do_bool_flag(BootstrapJVMCI) \
205 do_bool_flag(CITime) \
206 do_bool_flag(CITimeEach) \
207 do_uintx_flag(CodeCacheSegmentSize) \
208 do_intx_flag(CodeEntryAlignment) \
209 do_bool_flag(CompactFields) \
210 do_intx_flag(ContendedPaddingWidth) \
211 do_bool_flag(DontCompileHugeMethods) \
212 do_bool_flag(EagerJVMCI) \
213 do_bool_flag(EnableContended) \
214 do_intx_flag(FieldsAllocationStyle) \
215 do_bool_flag(FoldStableValues) \
216 do_bool_flag(ForceUnreachable) \
217 do_intx_flag(HugeMethodLimit) \
218 do_bool_flag(Inline) \
219 do_intx_flag(JVMCICounterSize) \
220 do_bool_flag(JVMCIPrintProperties) \
221 do_bool_flag(JVMCIUseFastLocking) \
222 do_intx_flag(MethodProfileWidth) \
223 do_intx_flag(ObjectAlignmentInBytes) \
224 do_bool_flag(PrintInlining) \
225 do_bool_flag(ReduceInitialCardMarks) \
226 do_bool_flag(RestrictContended) \
227 do_intx_flag(StackReservedPages) \
228 do_intx_flag(StackShadowPages) \
229 do_bool_flag(TLABStats) \
230 do_uintx_flag(TLABWasteIncrement) \
231 do_intx_flag(TypeProfileWidth) \
232 do_bool_flag(UseAESIntrinsics) \
233 X86_ONLY(do_intx_flag(UseAVX)) \
234 do_bool_flag(UseBiasedLocking) \
235 do_bool_flag(UseCRC32Intrinsics) \
236 do_bool_flag(UseCompressedClassPointers) \
237 do_bool_flag(UseCompressedOops) \
238 X86_ONLY(do_bool_flag(UseCountLeadingZerosInstruction)) \
239 X86_ONLY(do_bool_flag(UseCountTrailingZerosInstruction)) \
240 do_bool_flag(UseConcMarkSweepGC) \
241 do_bool_flag(UseG1GC) \
242 do_bool_flag(UseParallelGC) \
243 do_bool_flag(UseParallelOldGC) \
244 do_bool_flag(UseSerialGC) \
245 do_bool_flag(UseZGC) \
246 do_bool_flag(UseEpsilonGC) \
247 COMPILER2_PRESENT(do_bool_flag(UseMontgomeryMultiplyIntrinsic)) \
248 COMPILER2_PRESENT(do_bool_flag(UseMontgomerySquareIntrinsic)) \
249 COMPILER2_PRESENT(do_bool_flag(UseMulAddIntrinsic)) \
250 COMPILER2_PRESENT(do_bool_flag(UseMultiplyToLenIntrinsic)) \
251 do_bool_flag(UsePopCountInstruction) \
252 do_bool_flag(UseSHA1Intrinsics) \
253 do_bool_flag(UseSHA256Intrinsics) \
254 do_bool_flag(UseSHA512Intrinsics) \
255 do_intx_flag(UseSSE) \
256 COMPILER2_PRESENT(do_bool_flag(UseSquareToLenIntrinsic)) \
257 do_bool_flag(UseStackBanging) \
258 do_bool_flag(UseTLAB) \
259 do_bool_flag(VerifyOops) \
260
261 #define BOXED_BOOLEAN(name, value) oop name = ((jboolean)(value) ? boxedTrue() : boxedFalse())
262 #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)
263 #define BOXED_LONG(name, value) \
264 oop name; \
265 do { \
266 jvalue p; p.j = (jlong) (value); \
267 Handle* e = longs.get(p.j); \
268 if (e == NULL) { \
269 oop o = java_lang_boxing_object::create(T_LONG, &p, CHECK_NULL); \
270 Handle h(THREAD, o); \
271 longs.put(p.j, h); \
272 name = h(); \
273 } else { \
274 name = (*e)(); \
275 } \
276 } while (0)
277
278 #define CSTRING_TO_JSTRING(name, value) \
279 Handle name; \
280 do { \
281 if (value != NULL) { \
282 Handle* e = strings.get(value); \
283 if (e == NULL) { \
284 Handle h = java_lang_String::create_from_str(value, CHECK_NULL); \
285 strings.put(value, h); \
286 name = h; \
287 } else { \
288 name = (*e); \
289 } \
290 } \
291 } while (0)
292
293 jobjectArray readConfiguration0(JNIEnv *env, TRAPS) {
294 ResourceMark rm;
295 HandleMark hm;
296
297 // Used to canonicalize Long and String values.
298 ResourceHashtable<jlong, Handle> longs;
299 ResourceHashtable<const char*, Handle, &CompilerToVM::cstring_hash, &CompilerToVM::cstring_equals> strings;
300
301 jvalue prim;
302 prim.z = true; oop boxedTrueOop = java_lang_boxing_object::create(T_BOOLEAN, &prim, CHECK_NULL);
303 Handle boxedTrue(THREAD, boxedTrueOop);
304 prim.z = false; oop boxedFalseOop = java_lang_boxing_object::create(T_BOOLEAN, &prim, CHECK_NULL);
305 Handle boxedFalse(THREAD, boxedFalseOop);
306
307 CompilerToVM::Data::initialize(CHECK_NULL);
308
309 VMField::klass()->initialize(CHECK_NULL);
310 VMFlag::klass()->initialize(CHECK_NULL);
311 VMIntrinsicMethod::klass()->initialize(CHECK_NULL);
312
313 int len = JVMCIVMStructs::localHotSpotVMStructs_count();
314 objArrayHandle vmFields = oopFactory::new_objArray_handle(VMField::klass(), len, CHECK_NULL);
315 for (int i = 0; i < len ; i++) {
316 VMStructEntry vmField = JVMCIVMStructs::localHotSpotVMStructs[i];
317 instanceHandle vmFieldObj = InstanceKlass::cast(VMField::klass())->allocate_instance_handle(CHECK_NULL);
318 size_t name_buf_len = strlen(vmField.typeName) + strlen(vmField.fieldName) + 2 /* "::" */;
319 char* name_buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, name_buf_len + 1);
320 sprintf(name_buf, "%s::%s", vmField.typeName, vmField.fieldName);
321 CSTRING_TO_JSTRING(name, name_buf);
322 CSTRING_TO_JSTRING(type, vmField.typeString);
323 VMField::set_name(vmFieldObj, name());
324 VMField::set_type(vmFieldObj, type());
325 VMField::set_offset(vmFieldObj, vmField.offset);
326 VMField::set_address(vmFieldObj, (jlong) vmField.address);
327 if (vmField.isStatic && vmField.typeString != NULL) {
328 if (strcmp(vmField.typeString, "bool") == 0) {
329 BOXED_BOOLEAN(box, *(jbyte*) vmField.address);
330 VMField::set_value(vmFieldObj, box);
331 } else if (strcmp(vmField.typeString, "int") == 0 ||
332 strcmp(vmField.typeString, "jint") == 0) {
333 BOXED_LONG(box, *(jint*) vmField.address);
334 VMField::set_value(vmFieldObj, box);
335 } else if (strcmp(vmField.typeString, "uint64_t") == 0) {
336 BOXED_LONG(box, *(uint64_t*) vmField.address);
337 VMField::set_value(vmFieldObj, box);
338 } else if (strcmp(vmField.typeString, "address") == 0 ||
339 strcmp(vmField.typeString, "intptr_t") == 0 ||
340 strcmp(vmField.typeString, "uintptr_t") == 0 ||
341 strcmp(vmField.typeString, "OopHandle") == 0 ||
342 strcmp(vmField.typeString, "size_t") == 0 ||
343 // All foo* types are addresses.
344 vmField.typeString[strlen(vmField.typeString) - 1] == '*') {
345 BOXED_LONG(box, *((address*) vmField.address));
346 VMField::set_value(vmFieldObj, box);
347 } else {
348 JVMCI_ERROR_NULL("VM field %s has unsupported type %s", name_buf, vmField.typeString);
349 }
350 }
351 vmFields->obj_at_put(i, vmFieldObj());
352 }
353
354 int ints_len = JVMCIVMStructs::localHotSpotVMIntConstants_count();
355 int longs_len = JVMCIVMStructs::localHotSpotVMLongConstants_count();
356 len = ints_len + longs_len;
357 objArrayHandle vmConstants = oopFactory::new_objArray_handle(SystemDictionary::Object_klass(), len * 2, CHECK_NULL);
358 int insert = 0;
359 for (int i = 0; i < ints_len ; i++) {
360 VMIntConstantEntry c = JVMCIVMStructs::localHotSpotVMIntConstants[i];
361 CSTRING_TO_JSTRING(name, c.name);
362 BOXED_LONG(value, c.value);
363 vmConstants->obj_at_put(insert++, name());
364 vmConstants->obj_at_put(insert++, value);
365 }
366 for (int i = 0; i < longs_len ; i++) {
367 VMLongConstantEntry c = JVMCIVMStructs::localHotSpotVMLongConstants[i];
368 CSTRING_TO_JSTRING(name, c.name);
369 BOXED_LONG(value, c.value);
370 vmConstants->obj_at_put(insert++, name());
371 vmConstants->obj_at_put(insert++, value);
372 }
373 assert(insert == len * 2, "must be");
374
375 len = JVMCIVMStructs::localHotSpotVMAddresses_count();
376 objArrayHandle vmAddresses = oopFactory::new_objArray_handle(SystemDictionary::Object_klass(), len * 2, CHECK_NULL);
377 for (int i = 0; i < len ; i++) {
378 VMAddressEntry a = JVMCIVMStructs::localHotSpotVMAddresses[i];
379 CSTRING_TO_JSTRING(name, a.name);
380 BOXED_LONG(value, a.value);
381 vmAddresses->obj_at_put(i * 2, name());
382 vmAddresses->obj_at_put(i * 2 + 1, value);
383 }
384
385 #define COUNT_FLAG(ignore) +1
386 #ifdef ASSERT
387 #define CHECK_FLAG(type, name) { \
388 JVMFlag* flag = JVMFlag::find_flag(#name, strlen(#name), /*allow_locked*/ true, /* return_flag */ true); \
389 assert(flag != NULL, "No such flag named " #name); \
390 assert(flag->is_##type(), "JVMFlag " #name " is not of type " #type); \
391 }
392 #else
393 #define CHECK_FLAG(type, name)
394 #endif
395
396 #define ADD_FLAG(type, name, convert) { \
397 CHECK_FLAG(type, name) \
398 instanceHandle vmFlagObj = InstanceKlass::cast(VMFlag::klass())->allocate_instance_handle(CHECK_NULL); \
399 CSTRING_TO_JSTRING(fname, #name); \
400 CSTRING_TO_JSTRING(ftype, #type); \
401 VMFlag::set_name(vmFlagObj, fname()); \
402 VMFlag::set_type(vmFlagObj, ftype()); \
403 convert(value, name); \
404 VMFlag::set_value(vmFlagObj, value); \
405 vmFlags->obj_at_put(i++, vmFlagObj()); \
406 }
407 #define ADD_BOOL_FLAG(name) ADD_FLAG(bool, name, BOXED_BOOLEAN)
408 #define ADD_INTX_FLAG(name) ADD_FLAG(intx, name, BOXED_LONG)
409 #define ADD_UINTX_FLAG(name) ADD_FLAG(uintx, name, BOXED_LONG)
410
411 len = 0 + PREDEFINED_CONFIG_FLAGS(COUNT_FLAG, COUNT_FLAG, COUNT_FLAG);
412 objArrayHandle vmFlags = oopFactory::new_objArray_handle(VMFlag::klass(), len, CHECK_NULL);
413 int i = 0;
414 PREDEFINED_CONFIG_FLAGS(ADD_BOOL_FLAG, ADD_INTX_FLAG, ADD_UINTX_FLAG)
415
416 objArrayHandle vmIntrinsics = CompilerToVM::initialize_intrinsics(CHECK_NULL);
417
418 objArrayOop data = oopFactory::new_objArray(SystemDictionary::Object_klass(), 5, CHECK_NULL);
419 data->obj_at_put(0, vmFields());
420 data->obj_at_put(1, vmConstants());
421 data->obj_at_put(2, vmAddresses());
422 data->obj_at_put(3, vmFlags());
423 data->obj_at_put(4, vmIntrinsics());
424
425 return (jobjectArray) JNIHandles::make_local(THREAD, data);
426 #undef COUNT_FLAG
427 #undef ADD_FLAG
428 #undef ADD_BOOL_FLAG
429 #undef ADD_INTX_FLAG
430 #undef ADD_UINTX_FLAG
431 #undef CHECK_FLAG
432 }