1 /*
2 * Copyright (c) 2016, 2019, 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
26 #include "aot/aotCodeHeap.hpp"
27 #include "aot/aotLoader.hpp"
28 #include "ci/ciUtilities.inline.hpp"
29 #include "classfile/javaAssertions.hpp"
30 #include "gc/shared/cardTable.hpp"
31 #include "gc/shared/cardTableBarrierSet.hpp"
32 #include "gc/shared/gcConfig.hpp"
33 #include "gc/g1/heapRegion.hpp"
34 #include "interpreter/abstractInterpreter.hpp"
35 #include "jvmci/compilerRuntime.hpp"
36 #include "jvmci/jvmciRuntime.hpp"
37 #include "logging/log.hpp"
38 #include "memory/allocation.inline.hpp"
39 #include "memory/universe.hpp"
40 #include "oops/compressedOops.hpp"
41 #include "oops/klass.inline.hpp"
42 #include "oops/method.inline.hpp"
43 #include "runtime/atomic.hpp"
44 #include "runtime/deoptimization.hpp"
45 #include "runtime/handles.inline.hpp"
46 #include "runtime/os.hpp"
47 #include "runtime/safepointVerifiers.hpp"
48 #include "runtime/sharedRuntime.hpp"
49 #include "runtime/vmOperations.hpp"
50 #include "utilities/sizes.hpp"
51
52 bool AOTLib::_narrow_oop_shift_initialized = false;
53 int AOTLib::_narrow_oop_shift = 0;
54 int AOTLib::_narrow_klass_shift = 0;
55
56 address AOTLib::load_symbol(const char *name) {
57 address symbol = (address) os::dll_lookup(_dl_handle, name);
58 if (symbol == NULL) {
59 tty->print_cr("Shared file %s error: missing %s", _name, name);
60 vm_exit(1);
61 }
62 return symbol;
63 }
64
65 Klass* AOTCodeHeap::get_klass_from_got(const char* klass_name, int klass_len, const Method* method) {
66 AOTKlassData* klass_data = (AOTKlassData*)_lib->load_symbol(klass_name);
67 Klass* k = (Klass*)_klasses_got[klass_data->_got_index];
68 if (k == NULL) {
69 Thread* thread = Thread::current();
70 k = lookup_klass(klass_name, klass_len, method, thread);
71 // Note, exceptions are cleared.
72 if (k == NULL) {
73 fatal("Shared file %s error: klass %s should be resolved already", _lib->name(), klass_name);
74 vm_exit(1);
75 }
76 // Patch now to avoid extra runtime lookup
77 _klasses_got[klass_data->_got_index] = k;
78 if (k->is_instance_klass()) {
79 InstanceKlass* ik = InstanceKlass::cast(k);
80 if (ik->is_initialized()) {
81 _klasses_got[klass_data->_got_index - 1] = ik;
82 }
83 }
84 }
85 return k;
86 }
87
88 Klass* AOTCodeHeap::lookup_klass(const char* name, int len, const Method* method, Thread* thread) {
89 ResourceMark rm(thread);
90 assert(method != NULL, "incorrect call parameter");
91 methodHandle caller(thread, (Method*)method);
92
93 // Use class loader of aot method.
94 Handle loader(thread, caller->method_holder()->class_loader());
95 Handle protection_domain(thread, caller->method_holder()->protection_domain());
96
97 // Ignore wrapping L and ;
98 if (name[0] == JVM_SIGNATURE_CLASS) {
99 assert(len > 2, "small name %s", name);
100 name++;
101 len -= 2;
102 }
103 TempNewSymbol sym = SymbolTable::probe(name, len);
104 if (sym == NULL) {
105 log_debug(aot, class, resolve)("Probe failed for AOT class %s", name);
106 return NULL;
107 }
108 Klass* k = SystemDictionary::find_instance_or_array_klass(sym, loader, protection_domain, thread);
109 assert(!thread->has_pending_exception(), "should not throw");
110
111 if (k != NULL) {
112 log_info(aot, class, resolve)("%s %s (lookup)", caller->method_holder()->external_name(), k->external_name());
113 }
114 return k;
115 }
116
117 void AOTLib::handle_config_error(const char* format, ...) {
118 if (PrintAOT) {
119 va_list ap;
120 va_start(ap, format);
121 tty->vprint_cr(format, ap);
122 va_end(ap);
123 }
124 if (UseAOTStrictLoading) {
125 vm_exit(1);
126 }
127 _valid = false;
128 }
129
130 void AOTLib::verify_flag(bool aot_flag, bool flag, const char* name) {
131 if (_valid && aot_flag != flag) {
132 handle_config_error("Shared file %s error: %s has different value '%s' from current '%s'", _name, name , (aot_flag ? "true" : "false"), (flag ? "true" : "false"));
133 }
134 }
135
136 void AOTLib::verify_flag(int aot_flag, int flag, const char* name) {
137 if (_valid && aot_flag != flag) {
138 handle_config_error("Shared file %s error: %s has different value '%d' from current '%d'", _name, name , aot_flag, flag);
139 }
140 }
141
142 void AOTLib::verify_config() {
143 GrowableArray<AOTLib*>* libraries = AOTLoader::libraries();
144 for (GrowableArrayIterator<AOTLib*> lib = libraries->begin(); lib != libraries->end(); ++lib) {
145 if ((*lib)->_config == _config) {
146 handle_config_error("AOT library %s already loaded.", (*lib)->_name);
147 return;
148 }
149 }
150
151 if (_header->_version != AOTHeader::AOT_SHARED_VERSION) {
152 handle_config_error("Invalid version of the shared file %s. Expected %d but was %d", _name, _header->_version, AOTHeader::AOT_SHARED_VERSION);
153 return;
154 }
155
156 const char* aot_jvm_version = (const char*)_header + _header->_jvm_version_offset + 2;
157 if (strcmp(aot_jvm_version, VM_Version::jre_release_version()) != 0) {
158 handle_config_error("JVM version '%s' recorded in the shared file %s does not match current version '%s'", aot_jvm_version, _name, VM_Version::jre_release_version());
159 return;
160 }
161
162 // Debug VM has different layout of runtime and metadata structures
163 #ifdef ASSERT
164 verify_flag(_config->_debug_VM, true, "Debug VM version");
165 #else
166 verify_flag(!(_config->_debug_VM), true, "Product VM version");
167 #endif
168 // Check configuration size
169 verify_flag(_config->_config_size, AOTConfiguration::CONFIG_SIZE, "AOT configuration size");
170
171 // Check GC
172 CollectedHeap::Name gc = (CollectedHeap::Name)_config->_gc;
173 if (_valid && !GCConfig::is_gc_selected(gc)) {
174 handle_config_error("Shared file %s error: used '%s' is different from current '%s'", _name, GCConfig::hs_err_name(gc), GCConfig::hs_err_name());
175 }
176
177 // Check flags
178 verify_flag(_config->_useCompressedOops, UseCompressedOops, "UseCompressedOops");
179 verify_flag(_config->_useCompressedClassPointers, UseCompressedClassPointers, "UseCompressedClassPointers");
180 verify_flag(_config->_useTLAB, UseTLAB, "UseTLAB");
181 verify_flag(_config->_useBiasedLocking, UseBiasedLocking, "UseBiasedLocking");
182 verify_flag(_config->_objectAlignment, ObjectAlignmentInBytes, "ObjectAlignmentInBytes");
183 verify_flag(_config->_contendedPaddingWidth, ContendedPaddingWidth, "ContendedPaddingWidth");
184 verify_flag(_config->_fieldsAllocationStyle, FieldsAllocationStyle, "FieldsAllocationStyle");
185 verify_flag(_config->_compactFields, CompactFields, "CompactFields");
186 verify_flag(_config->_enableContended, EnableContended, "EnableContended");
187 verify_flag(_config->_restrictContended, RestrictContended, "RestrictContended");
188 verify_flag(_config->_threadLocalHandshakes, ThreadLocalHandshakes, "ThreadLocalHandshakes");
189
190 if (!TieredCompilation && _config->_tieredAOT) {
191 handle_config_error("Shared file %s error: Expected to run with tiered compilation on", _name);
192 }
193
194 // Shifts are static values which initialized by 0 until java heap initialization.
195 // AOT libs are loaded before heap initialized so shift values are not set.
196 // It is okay since ObjectAlignmentInBytes flag which defines shifts value is set before AOT libs are loaded.
197 // Set shifts value based on first AOT library config.
198 if (UseCompressedOops && _valid) {
199 if (!_narrow_oop_shift_initialized) {
200 _narrow_oop_shift = _config->_narrowOopShift;
201 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set
202 _narrow_klass_shift = _config->_narrowKlassShift;
203 }
204 _narrow_oop_shift_initialized = true;
205 } else {
206 verify_flag(_config->_narrowOopShift, _narrow_oop_shift, "aot_config->_narrowOopShift");
207 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set
208 verify_flag(_config->_narrowKlassShift, _narrow_klass_shift, "aot_config->_narrowKlassShift");
209 }
210 }
211 }
212 }
213
214 AOTLib::~AOTLib() {
215 os::free((void*) _name);
216 }
217
218 AOTCodeHeap::~AOTCodeHeap() {
219 FREE_C_HEAP_ARRAY(AOTClass, _classes);
220 FREE_C_HEAP_ARRAY(CodeToAMethod, _code_to_aot);
221 }
222
223 AOTLib::AOTLib(void* handle, const char* name, int dso_id) : _valid(true), _dl_handle(handle), _dso_id(dso_id) {
224 _name = (const char*) os::strdup(name);
225
226 // Verify that VM runs with the same parameters as AOT tool.
227 _config = (AOTConfiguration*) load_symbol("A.config");
228 _header = (AOTHeader*) load_symbol("A.header");
229
230 verify_config();
231
232 if (!_valid && PrintAOT) {
233 tty->print("%7d ", (int) tty->time_stamp().milliseconds());
234 tty->print_cr("%4d skipped %s aot library", _dso_id, _name);
235 }
236 }
237
238 AOTCodeHeap::AOTCodeHeap(AOTLib* lib) :
239 CodeHeap("CodeHeap 'AOT'", CodeBlobType::AOT), _lib(lib), _classes(NULL), _code_to_aot(NULL) {
240 assert(_lib->is_valid(), "invalid library");
241
242 _lib_symbols_initialized = false;
243 _aot_id = 0;
244
245 _class_count = _lib->header()->_class_count;
246 _method_count = _lib->header()->_method_count;
247
248 // Collect metaspace info: names -> address in .got section
249 _metaspace_names = (const char*) _lib->load_symbol("A.meta.names");
250 _method_metadata = (address) _lib->load_symbol("A.meth.metadata");
251 _methods_offsets = (address) _lib->load_symbol("A.meth.offsets");
252 _klasses_offsets = (address) _lib->load_symbol("A.kls.offsets");
253 _dependencies = (address) _lib->load_symbol("A.kls.dependencies");
254 _code_space = (address) _lib->load_symbol("A.text");
255
256 // First cell is number of elements.
257 _klasses_got = (Metadata**) _lib->load_symbol("A.kls.got");
258 _klasses_got_size = _lib->header()->_klasses_got_size;
259
260 _metadata_got = (Metadata**) _lib->load_symbol("A.meta.got");
261 _metadata_got_size = _lib->header()->_metadata_got_size;
262
263 _oop_got = (oop*) _lib->load_symbol("A.oop.got");
264 _oop_got_size = _lib->header()->_oop_got_size;
265
266 // Collect stubs info
267 _stubs_offsets = (int*) _lib->load_symbol("A.stubs.offsets");
268
269 // code segments table
270 _code_segments = (address) _lib->load_symbol("A.code.segments");
271
272 // method state
273 _method_state = (jlong*) _lib->load_symbol("A.meth.state");
274
275 // Create a table for mapping classes
276 _classes = NEW_C_HEAP_ARRAY(AOTClass, _class_count, mtCode);
277 memset(_classes, 0, _class_count * sizeof(AOTClass));
278
279 // Create table for searching AOTCompiledMethod based on pc.
280 _code_to_aot = NEW_C_HEAP_ARRAY(CodeToAMethod, _method_count, mtCode);
281 memset(_code_to_aot, 0, _method_count * sizeof(CodeToAMethod));
282
283 _memory.set_low_boundary((char *)_code_space);
284 _memory.set_high_boundary((char *)_code_space);
285 _memory.set_low((char *)_code_space);
286 _memory.set_high((char *)_code_space);
287
288 _segmap.set_low_boundary((char *)_code_segments);
289 _segmap.set_low((char *)_code_segments);
290
291 _log2_segment_size = exact_log2(_lib->config()->_codeSegmentSize);
292
293 // Register aot stubs
294 register_stubs();
295
296 if (PrintAOT || (PrintCompilation && PrintAOT)) {
297 tty->print("%7d ", (int) tty->time_stamp().milliseconds());
298 tty->print_cr("%4d loaded %s aot library", _lib->id(), _lib->name());
299 }
300 }
301
302 void AOTCodeHeap::publish_aot(const methodHandle& mh, AOTMethodData* method_data, int code_id) {
303 // The method may be explicitly excluded by the user.
304 // Or Interpreter uses an intrinsic for this method.
305 // Or method has breakpoints.
306 if (CompilerOracle::should_exclude(mh) ||
307 !AbstractInterpreter::can_be_compiled(mh) ||
308 (mh->number_of_breakpoints() > 0)) {
309 return;
310 }
311 // Make sure no break points were set in the method in case of a safepoint
312 // in the following code until aot code is registered.
313 NoSafepointVerifier nsv;
314
315 address code = method_data->_code;
316 const char* name = method_data->_name;
317 aot_metadata* meta = method_data->_meta;
318
319 if (meta->scopes_pcs_begin() == meta->scopes_pcs_end()) {
320 // Switch off NoSafepointVerifier because log_info() may cause safepoint
321 // and it is fine because aot code will not be registered here.
322 PauseNoSafepointVerifier pnsv(&nsv);
323
324 // When the AOT compiler compiles something big we fail to generate metadata
325 // in CodeInstaller::gather_metadata. In that case the scopes_pcs_begin == scopes_pcs_end.
326 // In all successful cases we always have 2 entries of scope pcs.
327 log_info(aot, class, resolve)("Failed to load %s (no metadata available)", mh->name_and_sig_as_C_string());
328 _code_to_aot[code_id]._state = invalid;
329 return;
330 }
331
332 jlong* state_adr = &_method_state[code_id];
333 address metadata_table = method_data->_metadata_table;
334 int metadata_size = method_data->_metadata_size;
335 assert(code_id < _method_count, "sanity");
336 _aot_id++;
337
338 #ifdef ASSERT
339 if (_aot_id > CIStop || _aot_id < CIStart) {
340 // Skip compilation
341 return;
342 }
343 #endif
344 // Check one more time.
345 if (_code_to_aot[code_id]._state == invalid) {
346 return;
347 }
348 AOTCompiledMethod *aot = new AOTCompiledMethod(code, mh(), meta, metadata_table, metadata_size, state_adr, this, name, code_id, _aot_id);
349 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized");
350 _code_to_aot[code_id]._aot = aot; // Should set this first
351 if (Atomic::cmpxchg(&_code_to_aot[code_id]._state, not_set, in_use) != not_set) {
352 _code_to_aot[code_id]._aot = NULL; // Clean
353 } else { // success
354 // Publish method
355 #ifdef TIERED
356 mh->set_aot_code(aot);
357 #endif
358 {
359 MutexLocker pl(CompiledMethod_lock, Mutex::_no_safepoint_check_flag);
360 Method::set_code(mh, aot);
361 }
362 if (PrintAOT || (PrintCompilation && PrintAOT)) {
363 PauseNoSafepointVerifier pnsv(&nsv); // aot code is registered already
364 aot->print_on(tty, NULL);
365 }
366 // Publish oop only after we are visible to CompiledMethodIterator
367 aot->set_oop(mh()->method_holder()->klass_holder());
368 }
369 }
370
371 void AOTCodeHeap::link_primitive_array_klasses() {
372 ResourceMark rm;
373 for (int i = T_BOOLEAN; i <= T_CONFLICT; i++) {
374 BasicType t = (BasicType)i;
375 if (is_java_primitive(t)) {
376 const Klass* arr_klass = Universe::typeArrayKlassObj(t);
377 AOTKlassData* klass_data = (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), arr_klass->signature_name());
378 if (klass_data != NULL) {
379 // Set both GOT cells, resolved and initialized klass pointers.
380 // _got_index points to second cell - resolved klass pointer.
381 _klasses_got[klass_data->_got_index-1] = (Metadata*)arr_klass; // Initialized
382 _klasses_got[klass_data->_got_index ] = (Metadata*)arr_klass; // Resolved
383 if (PrintAOT) {
384 tty->print_cr("[Found %s in %s]", arr_klass->internal_name(), _lib->name());
385 }
386 }
387 }
388 }
389 }
390
391 void AOTCodeHeap::register_stubs() {
392 int stubs_count = _stubs_offsets[0]; // contains number
393 _stubs_offsets++;
394 AOTMethodOffsets* stub_offsets = (AOTMethodOffsets*)_stubs_offsets;
395 for (int i = 0; i < stubs_count; ++i) {
396 const char* stub_name = _metaspace_names + stub_offsets[i]._name_offset;
397 address entry = _code_space + stub_offsets[i]._code_offset;
398 aot_metadata* meta = (aot_metadata *) (_method_metadata + stub_offsets[i]._meta_offset);
399 address metadata_table = (address)_metadata_got + stub_offsets[i]._metadata_got_offset;
400 int metadata_size = stub_offsets[i]._metadata_got_size;
401 int code_id = stub_offsets[i]._code_id;
402 assert(code_id < _method_count, "sanity");
403 jlong* state_adr = &_method_state[code_id];
404 int len = Bytes::get_Java_u2((address)stub_name);
405 stub_name += 2;
406 char* full_name = NEW_C_HEAP_ARRAY(char, len+5, mtCode);
407 memcpy(full_name, "AOT ", 4);
408 memcpy(full_name+4, stub_name, len);
409 full_name[len+4] = 0;
410 guarantee(_code_to_aot[code_id]._state != invalid, "stub %s can't be invalidated", full_name);
411 AOTCompiledMethod* aot = new AOTCompiledMethod(entry, NULL, meta, metadata_table, metadata_size, state_adr, this, full_name, code_id, i);
412 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized");
413 _code_to_aot[code_id]._aot = aot;
414 if (Atomic::cmpxchg(&_code_to_aot[code_id]._state, not_set, in_use) != not_set) {
415 fatal("stab '%s' code state is %d", full_name, _code_to_aot[code_id]._state);
416 }
417 // Adjust code buffer boundaries only for stubs because they are last in the buffer.
418 adjust_boundaries(aot);
419 if (PrintAOT && Verbose) {
420 aot->print_on(tty, NULL);
421 }
422 }
423 }
424
425 #define SET_AOT_GLOBAL_SYMBOL_VALUE(AOTSYMNAME, AOTSYMTYPE, VMSYMVAL) \
426 { \
427 AOTSYMTYPE * adr = (AOTSYMTYPE *) os::dll_lookup(_lib->dl_handle(), AOTSYMNAME); \
428 /* Check for a lookup error */ \
429 guarantee(adr != NULL, "AOT Symbol not found %s", AOTSYMNAME); \
430 *adr = (AOTSYMTYPE) VMSYMVAL; \
431 }
432
433 void AOTCodeHeap::link_graal_runtime_symbols() {
434 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorenter", address, JVMCIRuntime::monitorenter);
435 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorexit", address, JVMCIRuntime::monitorexit);
436 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_object", address, JVMCIRuntime::log_object);
437 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_printf", address, JVMCIRuntime::log_printf);
438 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_primitive", address, JVMCIRuntime::log_primitive);
439 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance", address, JVMCIRuntime::new_instance);
440 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array", address, JVMCIRuntime::new_array);
441 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array", address, JVMCIRuntime::new_multi_array);
442 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance", address, JVMCIRuntime::dynamic_new_instance);
443 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array", address, JVMCIRuntime::dynamic_new_array);
444 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance_or_null", address, JVMCIRuntime::new_instance_or_null);
445 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array_or_null", address, JVMCIRuntime::new_array_or_null);
446 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array_or_null", address, JVMCIRuntime::new_multi_array_or_null);
447 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance_or_null", address, JVMCIRuntime::dynamic_new_instance_or_null);
448 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array_or_null", address, JVMCIRuntime::dynamic_new_array_or_null);
449 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_validate_object", address, JVMCIRuntime::validate_object);
450 #if INCLUDE_G1GC
451 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_pre", address, JVMCIRuntime::write_barrier_pre);
452 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_post", address, JVMCIRuntime::write_barrier_post);
453 #endif
454 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_identity_hash_code", address, JVMCIRuntime::identity_hash_code);
455 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_exception_handler_for_pc", address, JVMCIRuntime::exception_handler_for_pc);
456 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_test_deoptimize_call_int", address, JVMCIRuntime::test_deoptimize_call_int);
457 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_and_post_jvmti_exception", address, JVMCIRuntime::throw_and_post_jvmti_exception);
458 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_klass_external_name_exception", address, JVMCIRuntime::throw_klass_external_name_exception);
459 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_class_cast_exception", address, JVMCIRuntime::throw_class_cast_exception);
460 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_message", address, JVMCIRuntime::vm_message);
461 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_error", address, JVMCIRuntime::vm_error);
462 }
463
464 void AOTCodeHeap::link_shared_runtime_symbols() {
465 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_static_entry", address, SharedRuntime::get_resolve_static_call_stub());
466 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_virtual_entry", address, SharedRuntime::get_resolve_virtual_call_stub());
467 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_opt_virtual_entry", address, SharedRuntime::get_resolve_opt_virtual_call_stub());
468 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_unpack", address, SharedRuntime::deopt_blob()->unpack());
469 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_uncommon_trap", address, SharedRuntime::deopt_blob()->uncommon_trap());
470 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_ic_miss_stub", address, SharedRuntime::get_ic_miss_stub());
471 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_handle_wrong_method_stub", address, SharedRuntime::get_handle_wrong_method_stub());
472 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_exception_handler_for_return_address", address, SharedRuntime::exception_handler_for_return_address);
473 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_register_finalizer", address, SharedRuntime::register_finalizer);
474 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_object_notify", address, JVMCIRuntime::object_notify);
475 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_object_notifyAll", address, JVMCIRuntime::object_notifyAll);
476 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_OSR_migration_end", address, SharedRuntime::OSR_migration_end);
477 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_enable_stack_reserved_zone", address, SharedRuntime::enable_stack_reserved_zone);
478 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_dynamic_invoke", address, CompilerRuntime::resolve_dynamic_invoke);
479 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_string_by_symbol", address, CompilerRuntime::resolve_string_by_symbol);
480 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_klass_by_symbol", address, CompilerRuntime::resolve_klass_by_symbol);
481 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_method_by_symbol_and_load_counters", address, CompilerRuntime::resolve_method_by_symbol_and_load_counters);
482 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_initialize_klass_by_symbol", address, CompilerRuntime::initialize_klass_by_symbol);
483 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_invocation_event", address, CompilerRuntime::invocation_event);
484 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_backedge_event", address, CompilerRuntime::backedge_event);
485
486 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dpow", address, SharedRuntime::dpow);
487 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dexp", address, SharedRuntime::dexp);
488 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dcos", address, SharedRuntime::dcos);
489 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dsin", address, SharedRuntime::dsin);
490 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dtan", address, SharedRuntime::dtan);
491 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog", address, SharedRuntime::dlog);
492 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog10", address, SharedRuntime::dlog10);
493 }
494
495 void AOTCodeHeap::link_stub_routines_symbols() {
496 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_arraycopy", address, StubRoutines::_jbyte_arraycopy);
497 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_arraycopy", address, StubRoutines::_jshort_arraycopy);
498 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_arraycopy", address, StubRoutines::_jint_arraycopy);
499 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_arraycopy", address, StubRoutines::_jlong_arraycopy);
500 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy", address, StubRoutines::_oop_arraycopy);
501 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy_uninit", address, StubRoutines::_oop_arraycopy_uninit);
502
503 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_disjoint_arraycopy", address, StubRoutines::_jbyte_disjoint_arraycopy);
504 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_disjoint_arraycopy", address, StubRoutines::_jshort_disjoint_arraycopy);
505 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_disjoint_arraycopy", address, StubRoutines::_jint_disjoint_arraycopy);
506 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_disjoint_arraycopy", address, StubRoutines::_jlong_disjoint_arraycopy);
507 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy", address, StubRoutines::_oop_disjoint_arraycopy);
508 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy_uninit", address, StubRoutines::_oop_disjoint_arraycopy_uninit);
509
510 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_arraycopy", address, StubRoutines::_arrayof_jbyte_arraycopy);
511 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_arraycopy", address, StubRoutines::_arrayof_jshort_arraycopy);
512 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_arraycopy", address, StubRoutines::_arrayof_jint_arraycopy);
513 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_arraycopy", address, StubRoutines::_arrayof_jlong_arraycopy);
514 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy", address, StubRoutines::_arrayof_oop_arraycopy);
515 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy_uninit", address, StubRoutines::_arrayof_oop_arraycopy_uninit);
516
517 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_disjoint_arraycopy", address, StubRoutines::_arrayof_jbyte_disjoint_arraycopy);
518 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_disjoint_arraycopy", address, StubRoutines::_arrayof_jshort_disjoint_arraycopy);
519 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_disjoint_arraycopy", address, StubRoutines::_arrayof_jint_disjoint_arraycopy);
520 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_disjoint_arraycopy", address, StubRoutines::_arrayof_jlong_disjoint_arraycopy);
521 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy", address, StubRoutines::_arrayof_oop_disjoint_arraycopy);
522 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy_uninit", address, StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit);
523
524 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_unsafe_arraycopy", address, StubRoutines::_unsafe_arraycopy);
525
526 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_checkcast_arraycopy", address, StubRoutines::_checkcast_arraycopy);
527
528 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_generic_arraycopy", address, StubRoutines::_generic_arraycopy);
529
530 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_encryptBlock", address, StubRoutines::_aescrypt_encryptBlock);
531 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_decryptBlock", address, StubRoutines::_aescrypt_decryptBlock);
532 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_encryptAESCrypt", address, StubRoutines::_cipherBlockChaining_encryptAESCrypt);
533 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_decryptAESCrypt", address, StubRoutines::_cipherBlockChaining_decryptAESCrypt);
534 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_electronicCodeBook_encryptAESCrypt", address, StubRoutines::_electronicCodeBook_encryptAESCrypt);
535 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_electronicCodeBook_decryptAESCrypt", address, StubRoutines::_electronicCodeBook_decryptAESCrypt);
536 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_update_bytes_crc32", address, StubRoutines::_updateBytesCRC32);
537 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc_table_adr", address, StubRoutines::_crc_table_adr);
538
539
540 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompress", address, StubRoutines::_sha1_implCompress);
541 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompressMB", address, StubRoutines::_sha1_implCompressMB);
542 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompress", address, StubRoutines::_sha256_implCompress);
543 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompressMB", address, StubRoutines::_sha256_implCompressMB);
544 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompress", address, StubRoutines::_sha512_implCompress);
545 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompressMB", address, StubRoutines::_sha512_implCompressMB);
546 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_multiplyToLen", address, StubRoutines::_multiplyToLen);
547
548 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_counterMode_AESCrypt", address, StubRoutines::_counterMode_AESCrypt);
549 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_ghash_processBlocks", address, StubRoutines::_ghash_processBlocks);
550 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_base64_encodeBlock", address, StubRoutines::_base64_encodeBlock);
551 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc32c_table_addr", address, StubRoutines::_crc32c_table_addr);
552 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesCRC32C", address, StubRoutines::_updateBytesCRC32C);
553 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesAdler32", address, StubRoutines::_updateBytesAdler32);
554 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_squareToLen", address, StubRoutines::_squareToLen);
555 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_mulAdd", address, StubRoutines::_mulAdd);
556 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomeryMultiply", address, StubRoutines::_montgomeryMultiply);
557 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomerySquare", address, StubRoutines::_montgomerySquare);
558 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_vectorizedMismatch", address, StubRoutines::_vectorizedMismatch);
559
560 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_throw_delayed_StackOverflowError_entry", address, StubRoutines::_throw_delayed_StackOverflowError_entry);
561
562 }
563
564 void AOTCodeHeap::link_os_symbols() {
565 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeMillis", address, os::javaTimeMillis);
566 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeNanos", address, os::javaTimeNanos);
567 }
568
569 /*
570 * Link any global symbols in precompiled DSO with dlopen() _dl_handle
571 * dso_handle.
572 */
573
574 void AOTCodeHeap::link_global_lib_symbols() {
575 if (!_lib_symbols_initialized) {
576 _lib_symbols_initialized = true;
577
578 CollectedHeap* heap = Universe::heap();
579 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_card_table_address", address, (BarrierSet::barrier_set()->is_a(BarrierSet::CardTableBarrierSet) ? ci_card_table_address() : NULL));
580 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_top_address", address, (heap->supports_inline_contig_alloc() ? heap->top_addr() : NULL));
581 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_end_address", address, (heap->supports_inline_contig_alloc() ? heap->end_addr() : NULL));
582 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_polling_page", address, os::get_polling_page());
583 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_klass_base_address", address, CompressedKlassPointers::base());
584 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_oop_base_address", address, CompressedOops::base());
585 #if INCLUDE_G1GC
586 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_log_of_heap_region_grain_bytes", int, HeapRegion::LogOfHRGrainBytes);
587 #endif
588 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_inline_contiguous_allocation_supported", bool, heap->supports_inline_contig_alloc());
589 link_shared_runtime_symbols();
590 link_stub_routines_symbols();
591 link_os_symbols();
592 link_graal_runtime_symbols();
593
594 // Link primitive array klasses.
595 link_primitive_array_klasses();
596 }
597 }
598
599 #ifndef PRODUCT
600 int AOTCodeHeap::klasses_seen = 0;
601 int AOTCodeHeap::aot_klasses_found = 0;
602 int AOTCodeHeap::aot_klasses_fp_miss = 0;
603 int AOTCodeHeap::aot_klasses_cl_miss = 0;
604 int AOTCodeHeap::aot_methods_found = 0;
605
606 void AOTCodeHeap::print_statistics() {
607 tty->print_cr("Classes seen: %d AOT classes found: %d AOT methods found: %d", klasses_seen, aot_klasses_found, aot_methods_found);
608 tty->print_cr("AOT fingerprint mismatches: %d AOT class loader mismatches: %d", aot_klasses_fp_miss, aot_klasses_cl_miss);
609 }
610 #endif
611
612 Method* AOTCodeHeap::find_method(Klass* klass, Thread* thread, const char* method_name) {
613 int method_name_len = Bytes::get_Java_u2((address)method_name);
614 method_name += 2;
615 const char* signature_name = method_name + method_name_len;
616 int signature_name_len = Bytes::get_Java_u2((address)signature_name);
617 signature_name += 2;
618 // The class should have been loaded so the method and signature should already be
619 // in the symbol table. If they're not there, the method doesn't exist.
620 TempNewSymbol name = SymbolTable::probe(method_name, method_name_len);
621 TempNewSymbol signature = SymbolTable::probe(signature_name, signature_name_len);
622
623 Method* m;
624 if (name == NULL || signature == NULL) {
625 m = NULL;
626 } else if (name == vmSymbols::object_initializer_name() ||
627 name == vmSymbols::class_initializer_name()) {
628 // Never search superclasses for constructors
629 if (klass->is_instance_klass()) {
630 m = InstanceKlass::cast(klass)->find_method(name, signature);
631 } else {
632 m = NULL;
633 }
634 } else {
635 m = klass->lookup_method(name, signature);
636 if (m == NULL && klass->is_instance_klass()) {
637 m = InstanceKlass::cast(klass)->lookup_method_in_ordered_interfaces(name, signature);
638 }
639 }
640 if (m == NULL) {
641 // Fatal error because we assume classes and methods should not be changed since aot compilation.
642 const char* klass_name = klass->external_name();
643 int klass_len = (int)strlen(klass_name);
644 char* meta_name = NEW_RESOURCE_ARRAY(char, klass_len + 1 + method_name_len + signature_name_len + 1);
645 memcpy(meta_name, klass_name, klass_len);
646 meta_name[klass_len] = '.';
647 memcpy(&meta_name[klass_len + 1], method_name, method_name_len);
648 memcpy(&meta_name[klass_len + 1 + method_name_len], signature_name, signature_name_len);
649 meta_name[klass_len + 1 + method_name_len + signature_name_len] = '\0';
650 Handle exception = Exceptions::new_exception(thread, vmSymbols::java_lang_NoSuchMethodError(), meta_name);
651 java_lang_Throwable::print(exception(), tty);
652 tty->cr();
653 java_lang_Throwable::print_stack_trace(exception, tty);
654 tty->cr();
655 fatal("Failed to find method '%s'", meta_name);
656 }
657 NOT_PRODUCT( aot_methods_found++; )
658 return m;
659 }
660
661 AOTKlassData* AOTCodeHeap::find_klass(const char *name) {
662 return (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), name);
663 }
664
665 AOTKlassData* AOTCodeHeap::find_klass(InstanceKlass* ik) {
666 ResourceMark rm;
667 AOTKlassData* klass_data = find_klass(ik->signature_name());
668 return klass_data;
669 }
670
671 bool AOTCodeHeap::is_dependent_method(Klass* dependee, AOTCompiledMethod* aot) {
672 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee);
673 AOTKlassData* klass_data = find_klass(dependee_ik);
674 if (klass_data == NULL) {
675 return false; // no AOT records for this class - no dependencies
676 }
677 if (!dependee_ik->has_passed_fingerprint_check()) {
678 return false; // different class
679 }
680
681 int methods_offset = klass_data->_dependent_methods_offset;
682 if (methods_offset >= 0) {
683 address methods_cnt_adr = _dependencies + methods_offset;
684 int methods_cnt = *(int*)methods_cnt_adr;
685 int* indexes = (int*)(methods_cnt_adr + 4);
686 for (int i = 0; i < methods_cnt; ++i) {
687 int code_id = indexes[i];
688 if (_code_to_aot[code_id]._aot == aot) {
689 return true; // found dependent method
690 }
691 }
692 }
693 return false;
694 }
695
696 void AOTCodeHeap::mark_evol_dependent_methods(InstanceKlass* dependee) {
697 AOTKlassData* klass_data = find_klass(dependee);
698 if (klass_data == NULL) {
699 return; // no AOT records for this class - no dependencies
700 }
701 if (!dependee->has_passed_fingerprint_check()) {
702 return; // different class
703 }
704
705 int methods_offset = klass_data->_dependent_methods_offset;
706 if (methods_offset >= 0) {
707 address methods_cnt_adr = _dependencies + methods_offset;
708 int methods_cnt = *(int*)methods_cnt_adr;
709 int* indexes = (int*)(methods_cnt_adr + 4);
710 for (int i = 0; i < methods_cnt; ++i) {
711 int code_id = indexes[i];
712 AOTCompiledMethod* aot = _code_to_aot[code_id]._aot;
713 if (aot != NULL) {
714 aot->mark_for_deoptimization(false);
715 }
716 }
717 }
718 }
719
720 void AOTCodeHeap::sweep_dependent_methods(int* indexes, int methods_cnt) {
721 int marked = 0;
722 for (int i = 0; i < methods_cnt; ++i) {
723 int code_id = indexes[i];
724 // Invalidate aot code.
725 if (Atomic::cmpxchg(&_code_to_aot[code_id]._state, not_set, invalid) != not_set) {
726 if (_code_to_aot[code_id]._state == in_use) {
727 AOTCompiledMethod* aot = _code_to_aot[code_id]._aot;
728 assert(aot != NULL, "aot should be set");
729 if (!aot->is_runtime_stub()) { // Something is wrong - should not invalidate stubs.
730 aot->mark_for_deoptimization(false);
731 marked++;
732 }
733 }
734 }
735 }
736 if (marked > 0) {
737 Deoptimization::deoptimize_all_marked();
738 }
739 }
740
741 void AOTCodeHeap::sweep_dependent_methods(AOTKlassData* klass_data) {
742 // Make dependent methods non_entrant forever.
743 int methods_offset = klass_data->_dependent_methods_offset;
744 if (methods_offset >= 0) {
745 address methods_cnt_adr = _dependencies + methods_offset;
746 int methods_cnt = *(int*)methods_cnt_adr;
747 int* indexes = (int*)(methods_cnt_adr + 4);
748 sweep_dependent_methods(indexes, methods_cnt);
749 }
750 }
751
752 void AOTCodeHeap::sweep_dependent_methods(InstanceKlass* ik) {
753 AOTKlassData* klass_data = find_klass(ik);
754 vmassert(klass_data != NULL, "dependency data missing");
755 sweep_dependent_methods(klass_data);
756 }
757
758 void AOTCodeHeap::sweep_method(AOTCompiledMethod *aot) {
759 int indexes[] = {aot->method_index()};
760 sweep_dependent_methods(indexes, 1);
761 vmassert(aot->method()->code() != aot TIERED_ONLY( && aot->method()->aot_code() == NULL), "method still active");
762 }
763
764
765 bool AOTCodeHeap::load_klass_data(InstanceKlass* ik, Thread* thread) {
766 ResourceMark rm;
767
768 NOT_PRODUCT( klasses_seen++; )
769
770 // AOT does not support custom class loaders.
771 ClassLoaderData* cld = ik->class_loader_data();
772 if (!cld->is_builtin_class_loader_data()) {
773 log_trace(aot, class, load)("skip class %s for custom classloader %s (%p) tid=" INTPTR_FORMAT,
774 ik->internal_name(), cld->loader_name(), cld, p2i(thread));
775 return false;
776 }
777
778 AOTKlassData* klass_data = find_klass(ik);
779 if (klass_data == NULL) {
780 return false;
781 }
782
783 if (!ik->has_passed_fingerprint_check()) {
784 NOT_PRODUCT( aot_klasses_fp_miss++; )
785 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT,
786 ik->internal_name(), ik->is_shared() ? " (shared)" : "",
787 _lib->name(), p2i(thread));
788 sweep_dependent_methods(klass_data);
789 return false;
790 }
791
792 if (ik->has_been_redefined()) {
793 log_trace(aot, class, load)("class %s%s in %s has been redefined tid=" INTPTR_FORMAT,
794 ik->internal_name(), ik->is_shared() ? " (shared)" : "",
795 _lib->name(), p2i(thread));
796 sweep_dependent_methods(klass_data);
797 return false;
798 }
799
800 assert(klass_data->_class_id < _class_count, "invalid class id");
801 AOTClass* aot_class = &_classes[klass_data->_class_id];
802 ClassLoaderData* aot_cld = aot_class->_classloader;
803 if (aot_cld != NULL && aot_cld != cld) {
804 log_trace(aot, class, load)("class %s in %s already loaded for classloader %s (%p) vs %s (%p) tid=" INTPTR_FORMAT,
805 ik->internal_name(), _lib->name(), aot_cld->loader_name(), aot_cld, cld->loader_name(), cld, p2i(thread));
806 NOT_PRODUCT( aot_klasses_cl_miss++; )
807 return false;
808 }
809
810 if (_lib->config()->_omitAssertions && JavaAssertions::enabled(ik->name()->as_C_string(), ik->class_loader() == NULL)) {
811 log_trace(aot, class, load)("class %s in %s does not have java assertions in compiled code, but assertions are enabled for this execution.", ik->internal_name(), _lib->name());
812 sweep_dependent_methods(klass_data);
813 return false;
814 }
815
816 NOT_PRODUCT( aot_klasses_found++; )
817
818 log_trace(aot, class, load)("found %s in %s for classloader %s (%p) tid=" INTPTR_FORMAT, ik->internal_name(), _lib->name(), cld->loader_name(), cld, p2i(thread));
819
820 aot_class->_classloader = cld;
821 // Set klass's Resolve (second) got cell.
822 _klasses_got[klass_data->_got_index] = ik;
823 if (ik->is_initialized()) {
824 _klasses_got[klass_data->_got_index - 1] = ik;
825 }
826
827 // Initialize global symbols of the DSO to the corresponding VM symbol values.
828 link_global_lib_symbols();
829
830 int methods_offset = klass_data->_compiled_methods_offset;
831 if (methods_offset >= 0) {
832 address methods_cnt_adr = _methods_offsets + methods_offset;
833 int methods_cnt = *(int*)methods_cnt_adr;
834 // Collect data about compiled methods
835 AOTMethodData* methods_data = NEW_RESOURCE_ARRAY(AOTMethodData, methods_cnt);
836 AOTMethodOffsets* methods_offsets = (AOTMethodOffsets*)(methods_cnt_adr + 4);
837 for (int i = 0; i < methods_cnt; ++i) {
838 AOTMethodOffsets* method_offsets = &methods_offsets[i];
839 int code_id = method_offsets->_code_id;
840 if (_code_to_aot[code_id]._state == invalid) {
841 continue; // skip AOT methods slots which have been invalidated
842 }
843 AOTMethodData* method_data = &methods_data[i];
844 const char* aot_name = _metaspace_names + method_offsets->_name_offset;
845 method_data->_name = aot_name;
846 method_data->_code = _code_space + method_offsets->_code_offset;
847 method_data->_meta = (aot_metadata*)(_method_metadata + method_offsets->_meta_offset);
848 method_data->_metadata_table = (address)_metadata_got + method_offsets->_metadata_got_offset;
849 method_data->_metadata_size = method_offsets->_metadata_got_size;
850 // aot_name format: "<u2_size>Ljava/lang/ThreadGroup;<u2_size>addUnstarted<u2_size>()V"
851 int klass_len = Bytes::get_Java_u2((address)aot_name);
852 const char* method_name = aot_name + 2 + klass_len;
853 Method* m = AOTCodeHeap::find_method(ik, thread, method_name);
854 methodHandle mh(thread, m);
855 if (mh->code() != NULL) { // Does it have already compiled code?
856 continue; // Don't overwrite
857 }
858 publish_aot(mh, method_data, code_id);
859 }
860 }
861 return true;
862 }
863
864 AOTCompiledMethod* AOTCodeHeap::next_in_use_at(int start) const {
865 for (int index = start; index < _method_count; index++) {
866 if (_code_to_aot[index]._state != in_use) {
867 continue; // Skip uninitialized entries.
868 }
869 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
870 return aot;
871 }
872 return NULL;
873 }
874
875 void* AOTCodeHeap::first() const {
876 return next_in_use_at(0);
877 }
878
879 void* AOTCodeHeap::next(void* p) const {
880 AOTCompiledMethod *aot = (AOTCompiledMethod *)p;
881 int next_index = aot->method_index() + 1;
882 assert(next_index <= _method_count, "");
883 if (next_index == _method_count) {
884 return NULL;
885 }
886 return next_in_use_at(next_index);
887 }
888
889 void* AOTCodeHeap::find_start(void* p) const {
890 if (!contains(p)) {
891 return NULL;
892 }
893 size_t offset = pointer_delta(p, low_boundary(), 1);
894 // Use segments table
895 size_t seg_idx = offset / _lib->config()->_codeSegmentSize;
896 if ((int)(_code_segments[seg_idx]) == 0xff) {
897 return NULL;
898 }
899 while (_code_segments[seg_idx] > 0) {
900 seg_idx -= (int)_code_segments[seg_idx];
901 }
902 int code_offset = (int)seg_idx * _lib->config()->_codeSegmentSize;
903 int aot_index = *(int*)(_code_space + code_offset);
904 AOTCompiledMethod* aot = _code_to_aot[aot_index]._aot;
905 assert(aot != NULL, "should find registered aot method");
906 return aot;
907 }
908
909 AOTCompiledMethod* AOTCodeHeap::find_aot(address p) const {
910 assert(contains(p), "should be here");
911 return (AOTCompiledMethod *)find_start(p);
912 }
913
914 CodeBlob* AOTCodeHeap::find_blob_unsafe(void* start) const {
915 return (CodeBlob*)AOTCodeHeap::find_start(start);
916 }
917
918 void AOTCodeHeap::oops_do(OopClosure* f) {
919 for (int i = 0; i < _oop_got_size; i++) {
920 oop* p = &_oop_got[i];
921 if (*p == NULL) continue; // skip non-oops
922 f->do_oop(p);
923 }
924 for (int index = 0; index < _method_count; index++) {
925 if (_code_to_aot[index]._state != in_use) {
926 continue; // Skip uninitialized entries.
927 }
928 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
929 aot->do_oops(f);
930 }
931 }
932
933 // Scan only klasses_got cells which should have only Klass*,
934 // metadata_got cells are scanned only for alive AOT methods
935 // by AOTCompiledMethod::metadata_do().
936 void AOTCodeHeap::got_metadata_do(MetadataClosure* f) {
937 for (int i = 1; i < _klasses_got_size; i++) {
938 Metadata** p = &_klasses_got[i];
939 Metadata* md = *p;
940 if (md == NULL) continue; // skip non-oops
941 if (Metaspace::contains(md)) {
942 f->do_metadata(md);
943 } else {
944 intptr_t meta = (intptr_t)md;
945 fatal("Invalid value in _klasses_got[%d] = " INTPTR_FORMAT, i, meta);
946 }
947 }
948 }
949
950 void AOTCodeHeap::cleanup_inline_caches() {
951 for (int index = 0; index < _method_count; index++) {
952 if (_code_to_aot[index]._state != in_use) {
953 continue; // Skip uninitialized entries.
954 }
955 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
956 aot->cleanup_inline_caches(false);
957 }
958 }
959
960 #ifdef ASSERT
961 int AOTCodeHeap::verify_icholder_relocations() {
962 int count = 0;
963 for (int index = 0; index < _method_count; index++) {
964 if (_code_to_aot[index]._state != in_use) {
965 continue; // Skip uninitialized entries.
966 }
967 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
968 count += aot->verify_icholder_relocations();
969 }
970 return count;
971 }
972 #endif
973
974 void AOTCodeHeap::metadata_do(MetadataClosure* f) {
975 for (int index = 0; index < _method_count; index++) {
976 if (_code_to_aot[index]._state != in_use) {
977 continue; // Skip uninitialized entries.
978 }
979 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
980 if (aot->_is_alive()) {
981 aot->metadata_do(f);
982 }
983 }
984 // Scan klasses_got cells.
985 got_metadata_do(f);
986 }
987
988 bool AOTCodeHeap::reconcile_dynamic_klass(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Klass *dyno_klass, const char *descriptor1, const char *descriptor2) {
989 const char * const descriptors[2] = {descriptor1, descriptor2};
990 JavaThread *thread = JavaThread::current();
991 ResourceMark rm(thread);
992
993 AOTKlassData* holder_data = find_klass(holder);
994 vmassert(holder_data != NULL, "klass %s not found", holder->signature_name());
995 vmassert(is_dependent_method(holder, caller), "sanity");
996
997 AOTKlassData* dyno_data = NULL;
998 bool adapter_failed = false;
999 char buf[64];
1000 int descriptor_index = 0;
1001 // descriptors[0] specific name ("adapter:<method_id>") for matching
1002 // descriptors[1] fall-back name ("adapter") for depdencies
1003 while (descriptor_index < 2) {
1004 const char *descriptor = descriptors[descriptor_index];
1005 if (descriptor == NULL) {
1006 break;
1007 }
1008 jio_snprintf(buf, sizeof buf, "%s<%d:%d>", descriptor, holder_data->_class_id, index);
1009 dyno_data = find_klass(buf);
1010 if (dyno_data != NULL) {
1011 break;
1012 }
1013 // If match failed then try fall-back for dependencies
1014 ++descriptor_index;
1015 adapter_failed = true;
1016 }
1017
1018 if (dyno_data == NULL && dyno_klass == NULL) {
1019 // all is well, no (appendix) at compile-time, and still none
1020 return true;
1021 }
1022
1023 if (dyno_data == NULL) {
1024 // no (appendix) at build-time, but now there is
1025 sweep_dependent_methods(holder_data);
1026 return false;
1027 }
1028
1029 if (adapter_failed) {
1030 // adapter method mismatch
1031 sweep_dependent_methods(holder_data);
1032 sweep_dependent_methods(dyno_data);
1033 return false;
1034 }
1035
1036 if (dyno_klass == NULL) {
1037 // (appendix) at build-time, none now
1038 sweep_dependent_methods(holder_data);
1039 sweep_dependent_methods(dyno_data);
1040 return false;
1041 }
1042
1043 // TODO: support array appendix object
1044 if (!dyno_klass->is_instance_klass()) {
1045 sweep_dependent_methods(holder_data);
1046 sweep_dependent_methods(dyno_data);
1047 return false;
1048 }
1049
1050 InstanceKlass* dyno = InstanceKlass::cast(dyno_klass);
1051
1052 if (!dyno->is_unsafe_anonymous()) {
1053 if (_klasses_got[dyno_data->_got_index] != dyno) {
1054 // compile-time class different from runtime class, fail and deoptimize
1055 sweep_dependent_methods(holder_data);
1056 sweep_dependent_methods(dyno_data);
1057 return false;
1058 }
1059
1060 if (dyno->is_initialized()) {
1061 _klasses_got[dyno_data->_got_index - 1] = dyno;
1062 }
1063 return true;
1064 }
1065
1066 // TODO: support anonymous supers
1067 if (!dyno->supers_have_passed_fingerprint_checks() || dyno->get_stored_fingerprint() != dyno_data->_fingerprint) {
1068 NOT_PRODUCT( aot_klasses_fp_miss++; )
1069 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT,
1070 dyno->internal_name(), dyno->is_shared() ? " (shared)" : "",
1071 _lib->name(), p2i(thread));
1072 sweep_dependent_methods(holder_data);
1073 sweep_dependent_methods(dyno_data);
1074 return false;
1075 }
1076
1077 _klasses_got[dyno_data->_got_index] = dyno;
1078 if (dyno->is_initialized()) {
1079 _klasses_got[dyno_data->_got_index - 1] = dyno;
1080 }
1081
1082 // TODO: hook up any AOT code
1083 // load_klass_data(dyno_data, thread);
1084 return true;
1085 }
1086
1087 bool AOTCodeHeap::reconcile_dynamic_method(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Method *adapter_method) {
1088 InstanceKlass *adapter_klass = adapter_method->method_holder();
1089 char buf[64];
1090 jio_snprintf(buf, sizeof buf, "adapter:%d", adapter_method->method_idnum());
1091 if (!reconcile_dynamic_klass(caller, holder, index, adapter_klass, buf, "adapter")) {
1092 return false;
1093 }
1094 return true;
1095 }
1096
1097 bool AOTCodeHeap::reconcile_dynamic_invoke(AOTCompiledMethod* caller, InstanceKlass* holder, int index, Method* adapter_method, Klass *appendix_klass) {
1098 if (!reconcile_dynamic_klass(caller, holder, index, appendix_klass, "appendix")) {
1099 return false;
1100 }
1101
1102 if (!reconcile_dynamic_method(caller, holder, index, adapter_method)) {
1103 return false;
1104 }
1105
1106 return true;
1107 }