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