1 /*
2 * Copyright (c) 2011, 2021, 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 "compiler/compiler_globals.hpp"
27 #include "compiler/oopMap.hpp"
28 #include "gc/shared/barrierSet.hpp"
29 #include "gc/shared/cardTable.hpp"
30 #include "gc/shared/collectedHeap.hpp"
31 #include "gc/shared/gc_globals.hpp"
32 #include "gc/shared/tlab_globals.hpp"
33 #include "jvmci/jvmciEnv.hpp"
34 #include "jvmci/jvmciCompilerToVM.hpp"
35 #include "jvmci/vmStructs_jvmci.hpp"
36 #include "memory/universe.hpp"
37 #include "oops/compressedOops.hpp"
38 #include "oops/klass.inline.hpp"
39 #include "runtime/flags/jvmFlag.hpp"
40 #include "runtime/sharedRuntime.hpp"
41 #include "runtime/stubRoutines.hpp"
42 #include "utilities/resourceHash.hpp"
43
44
45 int CompilerToVM::Data::Klass_vtable_start_offset;
46 int CompilerToVM::Data::Klass_vtable_length_offset;
47
48 int CompilerToVM::Data::Method_extra_stack_entries;
49
50 address CompilerToVM::Data::SharedRuntime_ic_miss_stub;
51 address CompilerToVM::Data::SharedRuntime_handle_wrong_method_stub;
52 address CompilerToVM::Data::SharedRuntime_deopt_blob_unpack;
53 address CompilerToVM::Data::SharedRuntime_deopt_blob_unpack_with_exception_in_tls;
54 address CompilerToVM::Data::SharedRuntime_deopt_blob_uncommon_trap;
55
56 size_t CompilerToVM::Data::ThreadLocalAllocBuffer_alignment_reserve;
57
58 CollectedHeap* CompilerToVM::Data::Universe_collectedHeap;
59 int CompilerToVM::Data::Universe_base_vtable_size;
60 address CompilerToVM::Data::Universe_narrow_oop_base;
61 int CompilerToVM::Data::Universe_narrow_oop_shift;
62 address CompilerToVM::Data::Universe_narrow_klass_base;
63 int CompilerToVM::Data::Universe_narrow_klass_shift;
64 void* CompilerToVM::Data::Universe_non_oop_bits;
65 uintptr_t CompilerToVM::Data::Universe_verify_oop_mask;
66 uintptr_t CompilerToVM::Data::Universe_verify_oop_bits;
67
68 bool CompilerToVM::Data::_supports_inline_contig_alloc;
69 HeapWord** CompilerToVM::Data::_heap_end_addr;
70 HeapWord* volatile* CompilerToVM::Data::_heap_top_addr;
71 int CompilerToVM::Data::_max_oop_map_stack_offset;
72 int CompilerToVM::Data::_fields_annotations_base_offset;
73
74 CardTable::CardValue* CompilerToVM::Data::cardtable_start_address;
75 int CompilerToVM::Data::cardtable_shift;
76
77 int CompilerToVM::Data::vm_page_size;
78
79 int CompilerToVM::Data::sizeof_vtableEntry = sizeof(vtableEntry);
80 int CompilerToVM::Data::sizeof_ExceptionTableElement = sizeof(ExceptionTableElement);
81 int CompilerToVM::Data::sizeof_LocalVariableTableElement = sizeof(LocalVariableTableElement);
82 int CompilerToVM::Data::sizeof_ConstantPool = sizeof(ConstantPool);
83 int CompilerToVM::Data::sizeof_narrowKlass = sizeof(narrowKlass);
84 int CompilerToVM::Data::sizeof_arrayOopDesc = sizeof(arrayOopDesc);
85 int CompilerToVM::Data::sizeof_BasicLock = sizeof(BasicLock);
86
87 address CompilerToVM::Data::dsin;
88 address CompilerToVM::Data::dcos;
89 address CompilerToVM::Data::dtan;
90 address CompilerToVM::Data::dexp;
91 address CompilerToVM::Data::dlog;
92 address CompilerToVM::Data::dlog10;
93 address CompilerToVM::Data::dpow;
94
95 address CompilerToVM::Data::symbol_init;
96 address CompilerToVM::Data::symbol_clinit;
97
98 void CompilerToVM::Data::initialize(JVMCI_TRAPS) {
99 Klass_vtable_start_offset = in_bytes(Klass::vtable_start_offset());
100 Klass_vtable_length_offset = in_bytes(Klass::vtable_length_offset());
101
102 Method_extra_stack_entries = Method::extra_stack_entries();
103
104 SharedRuntime_ic_miss_stub = SharedRuntime::get_ic_miss_stub();
105 SharedRuntime_handle_wrong_method_stub = SharedRuntime::get_handle_wrong_method_stub();
106 SharedRuntime_deopt_blob_unpack = SharedRuntime::deopt_blob()->unpack();
107 SharedRuntime_deopt_blob_unpack_with_exception_in_tls = SharedRuntime::deopt_blob()->unpack_with_exception_in_tls();
108 SharedRuntime_deopt_blob_uncommon_trap = SharedRuntime::deopt_blob()->uncommon_trap();
109
110 ThreadLocalAllocBuffer_alignment_reserve = ThreadLocalAllocBuffer::alignment_reserve();
111
112 Universe_collectedHeap = Universe::heap();
113 Universe_base_vtable_size = Universe::base_vtable_size();
114 Universe_narrow_oop_base = CompressedOops::base();
115 Universe_narrow_oop_shift = CompressedOops::shift();
116 Universe_narrow_klass_base = CompressedKlassPointers::base();
117 Universe_narrow_klass_shift = CompressedKlassPointers::shift();
118 Universe_non_oop_bits = Universe::non_oop_word();
119 Universe_verify_oop_mask = Universe::verify_oop_mask();
120 Universe_verify_oop_bits = Universe::verify_oop_bits();
121
122 _supports_inline_contig_alloc = Universe::heap()->supports_inline_contig_alloc();
123 _heap_end_addr = _supports_inline_contig_alloc ? Universe::heap()->end_addr() : (HeapWord**) -1;
124 _heap_top_addr = _supports_inline_contig_alloc ? Universe::heap()->top_addr() : (HeapWord* volatile*) -1;
125
126 _max_oop_map_stack_offset = (OopMapValue::register_mask - VMRegImpl::stack2reg(0)->value()) * VMRegImpl::stack_slot_size;
127 int max_oop_map_stack_index = _max_oop_map_stack_offset / VMRegImpl::stack_slot_size;
128 assert(OopMapValue::legal_vm_reg_name(VMRegImpl::stack2reg(max_oop_map_stack_index)), "should be valid");
129 assert(!OopMapValue::legal_vm_reg_name(VMRegImpl::stack2reg(max_oop_map_stack_index + 1)), "should be invalid");
130
131 symbol_init = (address) vmSymbols::object_initializer_name();
132 symbol_clinit = (address) vmSymbols::class_initializer_name();
133
134 _fields_annotations_base_offset = Array<AnnotationArray*>::base_offset_in_bytes();
135
136 BarrierSet* bs = BarrierSet::barrier_set();
137 if (bs->is_a(BarrierSet::CardTableBarrierSet)) {
138 CardTable::CardValue* base = ci_card_table_address();
139 assert(base != NULL, "unexpected byte_map_base");
140 cardtable_start_address = base;
141 cardtable_shift = CardTable::card_shift;
142 } else {
143 // No card mark barriers
144 cardtable_start_address = 0;
145 cardtable_shift = 0;
146 }
147
148 vm_page_size = os::vm_page_size();
149
150 #define SET_TRIGFUNC(name) \
151 if (StubRoutines::name() != NULL) { \
152 name = StubRoutines::name(); \
153 } else { \
154 name = CAST_FROM_FN_PTR(address, SharedRuntime::name); \
155 }
156
157 SET_TRIGFUNC(dsin);
158 SET_TRIGFUNC(dcos);
159 SET_TRIGFUNC(dtan);
160 SET_TRIGFUNC(dexp);
161 SET_TRIGFUNC(dlog10);
162 SET_TRIGFUNC(dlog);
163 SET_TRIGFUNC(dpow);
164
165 #undef SET_TRIGFUNC
166 }
167
168 JVMCIObjectArray CompilerToVM::initialize_intrinsics(JVMCI_TRAPS) {
169 int len = vmIntrinsics::number_of_intrinsics() - 1; // Exclude vmIntrinsics::_none, which is 0
170 JVMCIObjectArray vmIntrinsics = JVMCIENV->new_VMIntrinsicMethod_array(len, JVMCI_CHECK_NULL);
171 int index = 0;
172 vmSymbolID kls_sid = vmSymbolID::NO_SID;
173 JVMCIObject kls_str;
174 #define VM_SYMBOL_TO_STRING(s) \
175 JVMCIENV->create_string(vmSymbols::symbol_at(VM_SYMBOL_ENUM_NAME(s)), JVMCI_CHECK_NULL)
176 #define VM_INTRINSIC_INFO(id, kls, name, sig, ignore_fcode) { \
177 vmSymbolID sid = VM_SYMBOL_ENUM_NAME(kls); \
178 if (kls_sid != sid) { \
179 kls_str = VM_SYMBOL_TO_STRING(kls); \
180 kls_sid = sid; \
181 } \
182 JVMCIObject name_str = VM_SYMBOL_TO_STRING(name); \
183 JVMCIObject sig_str = VM_SYMBOL_TO_STRING(sig); \
184 JVMCIObject vmIntrinsicMethod = JVMCIENV->new_VMIntrinsicMethod(kls_str, name_str, sig_str, (jint) vmIntrinsics::id, JVMCI_CHECK_NULL); \
185 JVMCIENV->put_object_at(vmIntrinsics, index++, vmIntrinsicMethod); \
186 }
187
188 // VM_INTRINSICS_DO does *not* iterate over vmIntrinsics::_none
189 VM_INTRINSICS_DO(VM_INTRINSIC_INFO, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_ALIAS_IGNORE)
190 #undef VM_SYMBOL_TO_STRING
191 #undef VM_INTRINSIC_INFO
192
193 assert(index == len, "must be");
194 return vmIntrinsics;
195 }
196
197 #define PREDEFINED_CONFIG_FLAGS(do_bool_flag, do_intx_flag, do_uintx_flag) \
198 do_intx_flag(AllocateInstancePrefetchLines) \
199 do_intx_flag(AllocatePrefetchDistance) \
200 do_intx_flag(AllocatePrefetchInstr) \
201 do_intx_flag(AllocatePrefetchLines) \
202 do_intx_flag(AllocatePrefetchStepSize) \
203 do_intx_flag(AllocatePrefetchStyle) \
204 do_intx_flag(BciProfileWidth) \
205 do_bool_flag(BootstrapJVMCI) \
206 do_bool_flag(CITime) \
207 do_bool_flag(CITimeEach) \
208 do_uintx_flag(CodeCacheSegmentSize) \
209 do_intx_flag(CodeEntryAlignment) \
210 do_intx_flag(ContendedPaddingWidth) \
211 do_bool_flag(DontCompileHugeMethods) \
212 do_bool_flag(EagerJVMCI) \
213 do_bool_flag(EnableContended) \
214 do_bool_flag(FoldStableValues) \
215 do_bool_flag(ForceUnreachable) \
216 do_intx_flag(HugeMethodLimit) \
217 do_bool_flag(Inline) \
218 do_intx_flag(JVMCICounterSize) \
219 do_bool_flag(JVMCIPrintProperties) \
220 do_bool_flag(JVMCIUseFastLocking) \
221 do_intx_flag(ObjectAlignmentInBytes) \
222 do_bool_flag(PrintInlining) \
223 do_bool_flag(ReduceInitialCardMarks) \
224 do_bool_flag(RestrictContended) \
225 do_intx_flag(StackReservedPages) \
226 do_intx_flag(StackShadowPages) \
227 do_bool_flag(TLABStats) \
228 do_uintx_flag(TLABWasteIncrement) \
229 do_intx_flag(TypeProfileWidth) \
230 do_bool_flag(UseAESIntrinsics) \
231 X86_ONLY(do_intx_flag(UseAVX)) \
232 do_bool_flag(UseBiasedLocking) \
233 do_bool_flag(UseCRC32Intrinsics) \
234 do_bool_flag(UseAdler32Intrinsics) \
235 do_bool_flag(UseCompressedClassPointers) \
236 do_bool_flag(UseCompressedOops) \
237 X86_ONLY(do_bool_flag(UseCountLeadingZerosInstruction)) \
238 X86_ONLY(do_bool_flag(UseCountTrailingZerosInstruction)) \
239 do_bool_flag(UseG1GC) \
240 do_bool_flag(UseParallelGC) \
241 do_bool_flag(UseSerialGC) \
242 do_bool_flag(UseZGC) \
243 do_bool_flag(UseEpsilonGC) \
244 COMPILER2_PRESENT(do_bool_flag(UseMontgomeryMultiplyIntrinsic)) \
245 COMPILER2_PRESENT(do_bool_flag(UseMontgomerySquareIntrinsic)) \
246 COMPILER2_PRESENT(do_bool_flag(UseMulAddIntrinsic)) \
247 COMPILER2_PRESENT(do_bool_flag(UseMultiplyToLenIntrinsic)) \
248 do_bool_flag(UsePopCountInstruction) \
249 do_bool_flag(UseSHA1Intrinsics) \
250 do_bool_flag(UseSHA256Intrinsics) \
251 do_bool_flag(UseSHA512Intrinsics) \
252 X86_ONLY(do_intx_flag(UseSSE)) \
253 COMPILER2_PRESENT(do_bool_flag(UseSquareToLenIntrinsic)) \
254 do_bool_flag(UseTLAB) \
255 do_bool_flag(VerifyOops) \
256
257 #define BOXED_BOOLEAN(name, value) name = ((jboolean)(value) ? boxedTrue : boxedFalse)
258 #define BOXED_DOUBLE(name, value) do { jvalue p; p.d = (jdouble) (value); name = JVMCIENV->create_box(T_DOUBLE, &p, JVMCI_CHECK_NULL);} while(0)
259 #define BOXED_LONG(name, value) \
260 do { \
261 jvalue p; p.j = (jlong) (value); \
262 JVMCIObject* e = longs.get(p.j); \
263 if (e == NULL) { \
264 JVMCIObject h = JVMCIENV->create_box(T_LONG, &p, JVMCI_CHECK_NULL); \
265 longs.put(p.j, h); \
266 name = h; \
267 } else { \
268 name = (*e); \
269 } \
270 } while (0)
271
272 #define CSTRING_TO_JSTRING(name, value) \
273 JVMCIObject name; \
274 do { \
275 if (value != NULL) { \
276 JVMCIObject* e = strings.get(value); \
277 if (e == NULL) { \
278 JVMCIObject h = JVMCIENV->create_string(value, JVMCI_CHECK_NULL); \
279 strings.put(value, h); \
280 name = h; \
281 } else { \
282 name = (*e); \
283 } \
284 } \
285 } while (0)
286
287 jobjectArray readConfiguration0(JNIEnv *env, JVMCI_TRAPS) {
288 JavaThread* THREAD = JavaThread::current(); // For exception macros.
289 ResourceHashtable<jlong, JVMCIObject> longs;
290 ResourceHashtable<const char*, JVMCIObject, &CompilerToVM::cstring_hash, &CompilerToVM::cstring_equals> strings;
291
292 jvalue prim;
293 prim.z = true; JVMCIObject boxedTrue = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL);
294 prim.z = false; JVMCIObject boxedFalse = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL);
295
296 CompilerToVM::Data::initialize(JVMCI_CHECK_NULL);
297
298 JVMCIENV->VMField_initialize(JVMCI_CHECK_NULL);
299 JVMCIENV->VMFlag_initialize(JVMCI_CHECK_NULL);
300 JVMCIENV->VMIntrinsicMethod_initialize(JVMCI_CHECK_NULL);
301
302 int len = JVMCIVMStructs::localHotSpotVMStructs_count();
303 JVMCIObjectArray vmFields = JVMCIENV->new_VMField_array(len, JVMCI_CHECK_NULL);
304 for (int i = 0; i < len ; i++) {
305 VMStructEntry vmField = JVMCIVMStructs::localHotSpotVMStructs[i];
306 size_t name_buf_len = strlen(vmField.typeName) + strlen(vmField.fieldName) + 2 /* "::" */;
307 char* name_buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, name_buf_len + 1);
308 sprintf(name_buf, "%s::%s", vmField.typeName, vmField.fieldName);
309 CSTRING_TO_JSTRING(name, name_buf);
310 CSTRING_TO_JSTRING(type, vmField.typeString);
311 JVMCIObject box;
312 if (vmField.isStatic && vmField.typeString != NULL) {
313 if (strcmp(vmField.typeString, "bool") == 0) {
314 BOXED_BOOLEAN(box, *(jbyte*) vmField.address);
315 assert(box.is_non_null(), "must have a box");
316 } else if (strcmp(vmField.typeString, "int") == 0 ||
317 strcmp(vmField.typeString, "jint") == 0 ||
318 strcmp(vmField.typeString, "uint32_t") == 0) {
319 BOXED_LONG(box, *(jint*) vmField.address);
320 assert(box.is_non_null(), "must have a box");
321 } else if (strcmp(vmField.typeString, "uint64_t") == 0) {
322 BOXED_LONG(box, *(uint64_t*) vmField.address);
323 assert(box.is_non_null(), "must have a box");
324 } else if (strcmp(vmField.typeString, "address") == 0 ||
325 strcmp(vmField.typeString, "intptr_t") == 0 ||
326 strcmp(vmField.typeString, "uintptr_t") == 0 ||
327 strcmp(vmField.typeString, "OopHandle") == 0 ||
328 strcmp(vmField.typeString, "size_t") == 0 ||
329 // All foo* types are addresses.
330 vmField.typeString[strlen(vmField.typeString) - 1] == '*') {
331 BOXED_LONG(box, *((address*) vmField.address));
332 assert(box.is_non_null(), "must have a box");
333 } else {
334 JVMCI_ERROR_NULL("VM field %s has unsupported type %s", name_buf, vmField.typeString);
335 }
336 }
337 JVMCIObject vmFieldObj = JVMCIENV->new_VMField(name, type, vmField.offset, (jlong) vmField.address, box, JVMCI_CHECK_NULL);
338 JVMCIENV->put_object_at(vmFields, i, vmFieldObj);
339 }
340
341 int ints_len = JVMCIVMStructs::localHotSpotVMIntConstants_count();
342 int longs_len = JVMCIVMStructs::localHotSpotVMLongConstants_count();
343 len = ints_len + longs_len;
344 JVMCIObjectArray vmConstants = JVMCIENV->new_Object_array(len * 2, JVMCI_CHECK_NULL);
345 int insert = 0;
346 for (int i = 0; i < ints_len ; i++) {
347 VMIntConstantEntry c = JVMCIVMStructs::localHotSpotVMIntConstants[i];
348 CSTRING_TO_JSTRING(name, c.name);
349 JVMCIObject value;
350 BOXED_LONG(value, c.value);
351 JVMCIENV->put_object_at(vmConstants, insert++, name);
352 JVMCIENV->put_object_at(vmConstants, insert++, value);
353 }
354 for (int i = 0; i < longs_len ; i++) {
355 VMLongConstantEntry c = JVMCIVMStructs::localHotSpotVMLongConstants[i];
356 CSTRING_TO_JSTRING(name, c.name);
357 JVMCIObject value;
358 BOXED_LONG(value, c.value);
359 JVMCIENV->put_object_at(vmConstants, insert++, name);
360 JVMCIENV->put_object_at(vmConstants, insert++, value);
361 }
362 assert(insert == len * 2, "must be");
363
364 len = JVMCIVMStructs::localHotSpotVMAddresses_count();
365 JVMCIObjectArray vmAddresses = JVMCIENV->new_Object_array(len * 2, JVMCI_CHECK_NULL);
366 for (int i = 0; i < len ; i++) {
367 VMAddressEntry a = JVMCIVMStructs::localHotSpotVMAddresses[i];
368 CSTRING_TO_JSTRING(name, a.name);
369 JVMCIObject value;
370 BOXED_LONG(value, a.value);
371 JVMCIENV->put_object_at(vmAddresses, i * 2, name);
372 JVMCIENV->put_object_at(vmAddresses, i * 2 + 1, value);
373 }
374
375 #define COUNT_FLAG(ignore) +1
376 #ifdef ASSERT
377 #define CHECK_FLAG(type, name) { \
378 const JVMFlag* flag = JVMFlag::find_declared_flag(#name); \
379 assert(flag != NULL, "No such flag named " #name); \
380 assert(flag->is_##type(), "JVMFlag " #name " is not of type " #type); \
381 }
382 #else
383 #define CHECK_FLAG(type, name)
384 #endif
385
386 #define ADD_FLAG(type, name, convert) { \
387 CHECK_FLAG(type, name) \
388 CSTRING_TO_JSTRING(fname, #name); \
389 CSTRING_TO_JSTRING(ftype, #type); \
390 convert(value, name); \
391 JVMCIObject vmFlagObj = JVMCIENV->new_VMFlag(fname, ftype, value, JVMCI_CHECK_NULL); \
392 JVMCIENV->put_object_at(vmFlags, i++, vmFlagObj); \
393 }
394 #define ADD_BOOL_FLAG(name) ADD_FLAG(bool, name, BOXED_BOOLEAN)
395 #define ADD_INTX_FLAG(name) ADD_FLAG(intx, name, BOXED_LONG)
396 #define ADD_UINTX_FLAG(name) ADD_FLAG(uintx, name, BOXED_LONG)
397
398 len = 0 + PREDEFINED_CONFIG_FLAGS(COUNT_FLAG, COUNT_FLAG, COUNT_FLAG);
399 JVMCIObjectArray vmFlags = JVMCIENV->new_VMFlag_array(len, JVMCI_CHECK_NULL);
400 int i = 0;
401 JVMCIObject value;
402 PREDEFINED_CONFIG_FLAGS(ADD_BOOL_FLAG, ADD_INTX_FLAG, ADD_UINTX_FLAG)
403
404 JVMCIObjectArray vmIntrinsics = CompilerToVM::initialize_intrinsics(JVMCI_CHECK_NULL);
405
406 JVMCIObjectArray data = JVMCIENV->new_Object_array(5, JVMCI_CHECK_NULL);
407 JVMCIENV->put_object_at(data, 0, vmFields);
408 JVMCIENV->put_object_at(data, 1, vmConstants);
409 JVMCIENV->put_object_at(data, 2, vmAddresses);
410 JVMCIENV->put_object_at(data, 3, vmFlags);
411 JVMCIENV->put_object_at(data, 4, vmIntrinsics);
412
413 return JVMCIENV->get_jobjectArray(data);
414 }