1 /*
2 * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #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/vm_operations.hpp"
44
45 bool AOTLib::_narrow_oop_shift_initialized = false;
46 int AOTLib::_narrow_oop_shift = 0;
47 int AOTLib::_narrow_klass_shift = 0;
48
49 address AOTLib::load_symbol(const char *name) {
50 address symbol = (address) os::dll_lookup(_dl_handle, name);
51 if (symbol == NULL) {
52 tty->print_cr("Shared file %s error: missing %s", _name, name);
53 vm_exit(1);
54 }
55 return symbol;
56 }
57
58 Klass* AOTCodeHeap::get_klass_from_got(const char* klass_name, int klass_len, const Method* method) {
59 AOTKlassData* klass_data = (AOTKlassData*)_lib->load_symbol(klass_name);
60 Klass* k = (Klass*)_klasses_got[klass_data->_got_index];
61 if (k == NULL) {
62 Thread* thread = Thread::current();
63 k = lookup_klass(klass_name, klass_len, method, thread);
64 // Note, exceptions are cleared.
65 if (k == NULL) {
66 fatal("Shared file %s error: klass %s should be resolved already", _lib->name(), klass_name);
67 vm_exit(1);
68 }
69 // Patch now to avoid extra runtime lookup
70 _klasses_got[klass_data->_got_index] = k;
71 if (k->is_instance_klass()) {
72 InstanceKlass* ik = InstanceKlass::cast(k);
73 if (ik->is_initialized()) {
74 _klasses_got[klass_data->_got_index - 1] = ik;
75 }
76 }
77 }
78 return k;
79 }
80
81 Klass* AOTCodeHeap::lookup_klass(const char* name, int len, const Method* method, Thread* thread) {
82 ResourceMark rm(thread);
83 assert(method != NULL, "incorrect call parameter");
84 methodHandle caller(thread, (Method*)method);
85
86 // Use class loader of aot method.
87 Handle loader(thread, caller->method_holder()->class_loader());
88 Handle protection_domain(thread, caller->method_holder()->protection_domain());
89
90 // Ignore wrapping L and ;
91 if (name[0] == 'L') {
92 assert(len > 2, "small name %s", name);
93 name++;
94 len -= 2;
95 }
96 TempNewSymbol sym = SymbolTable::probe(name, len);
97 if (sym == NULL) {
98 log_debug(aot, class, resolve)("Probe failed for AOT class %s", name);
99 return NULL;
100 }
101 Klass* k = SystemDictionary::find_instance_or_array_klass(sym, loader, protection_domain, thread);
102 assert(!thread->has_pending_exception(), "should not throw");
103
104 if (k != NULL) {
105 log_info(aot, class, resolve)("%s %s (lookup)", caller->method_holder()->external_name(), k->external_name());
106 }
107 return k;
108 }
109
110 void AOTLib::handle_config_error(const char* format, ...) {
111 if (PrintAOT) {
112 va_list ap;
113 va_start(ap, format);
114 tty->vprint_cr(format, ap);
115 va_end(ap);
116 }
117 if (UseAOTStrictLoading) {
118 vm_exit(1);
119 }
120 _valid = false;
121 }
122
123 void AOTLib::verify_flag(bool aot_flag, bool flag, const char* name) {
124 if (_valid && aot_flag != flag) {
125 handle_config_error("Shared file %s error: %s has different value '%s' from current '%s'", _name, name , (aot_flag ? "true" : "false"), (flag ? "true" : "false"));
126 }
127 }
128
129 void AOTLib::verify_flag(int aot_flag, int flag, const char* name) {
130 if (_valid && aot_flag != flag) {
131 handle_config_error("Shared file %s error: %s has different value '%d' from current '%d'", _name, name , aot_flag, flag);
132 }
133 }
134
135 void AOTLib::verify_config() {
136 GrowableArray<AOTLib*>* libraries = AOTLoader::libraries();
137 for (GrowableArrayIterator<AOTLib*> lib = libraries->begin(); lib != libraries->end(); ++lib) {
138 if ((*lib)->_config == _config) {
139 handle_config_error("AOT library %s already loaded.", (*lib)->_name);
140 return;
141 }
142 }
143
144 if (_header->_version != AOTHeader::AOT_SHARED_VERSION) {
145 handle_config_error("Invalid version of the shared file %s. Expected %d but was %d", _name, _header->_version, AOTHeader::AOT_SHARED_VERSION);
146 return;
147 }
148
149 const char* aot_jvm_version = (const char*)_header + _header->_jvm_version_offset + 2;
150 if (strcmp(aot_jvm_version, VM_Version::jre_release_version()) != 0) {
151 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());
152 return;
153 }
154
155 // Debug VM has different layout of runtime and metadata structures
156 #ifdef ASSERT
157 verify_flag(_config->_debug_VM, true, "Debug VM version");
158 #else
159 verify_flag(!(_config->_debug_VM), true, "Product VM version");
160 #endif
161 // Check configuration size
162 verify_flag(_config->_config_size, AOTConfiguration::CONFIG_SIZE, "AOT configuration size");
163
164 // Check GC
165 CollectedHeap::Name gc = (CollectedHeap::Name)_config->_gc;
166 if (_valid && !GCConfig::is_gc_selected(gc)) {
167 handle_config_error("Shared file %s error: used '%s' is different from current '%s'", _name, GCConfig::hs_err_name(gc), GCConfig::hs_err_name());
168 }
169
170 // Check flags
171 verify_flag(_config->_useCompressedOops, UseCompressedOops, "UseCompressedOops");
172 verify_flag(_config->_useCompressedClassPointers, UseCompressedClassPointers, "UseCompressedClassPointers");
173 verify_flag(_config->_useTLAB, UseTLAB, "UseTLAB");
174 verify_flag(_config->_useBiasedLocking, UseBiasedLocking, "UseBiasedLocking");
175 verify_flag(_config->_objectAlignment, ObjectAlignmentInBytes, "ObjectAlignmentInBytes");
176 verify_flag(_config->_contendedPaddingWidth, ContendedPaddingWidth, "ContendedPaddingWidth");
177 verify_flag(_config->_fieldsAllocationStyle, FieldsAllocationStyle, "FieldsAllocationStyle");
178 verify_flag(_config->_compactFields, CompactFields, "CompactFields");
179 verify_flag(_config->_enableContended, EnableContended, "EnableContended");
180 verify_flag(_config->_restrictContended, RestrictContended, "RestrictContended");
181 verify_flag(_config->_threadLocalHandshakes, ThreadLocalHandshakes, "ThreadLocalHandshakes");
182
183 if (!TieredCompilation && _config->_tieredAOT) {
184 handle_config_error("Shared file %s error: Expected to run with tiered compilation on", _name);
185 }
186
187 // Shifts are static values which initialized by 0 until java heap initialization.
188 // AOT libs are loaded before heap initialized so shift values are not set.
189 // It is okay since ObjectAlignmentInBytes flag which defines shifts value is set before AOT libs are loaded.
190 // Set shifts value based on first AOT library config.
191 if (UseCompressedOops && _valid) {
192 if (!_narrow_oop_shift_initialized) {
193 _narrow_oop_shift = _config->_narrowOopShift;
194 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set
195 _narrow_klass_shift = _config->_narrowKlassShift;
196 }
197 _narrow_oop_shift_initialized = true;
198 } else {
199 verify_flag(_config->_narrowOopShift, _narrow_oop_shift, "aot_config->_narrowOopShift");
200 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set
201 verify_flag(_config->_narrowKlassShift, _narrow_klass_shift, "aot_config->_narrowKlassShift");
202 }
203 }
204 }
205 }
206
207 AOTLib::~AOTLib() {
208 os::free((void*) _name);
209 }
210
211 AOTCodeHeap::~AOTCodeHeap() {
212 if (_classes != NULL) {
213 FREE_C_HEAP_ARRAY(AOTClass, _classes);
214 }
215 if (_code_to_aot != NULL) {
216 FREE_C_HEAP_ARRAY(CodeToAMethod, _code_to_aot);
217 }
218 }
219
220 AOTLib::AOTLib(void* handle, const char* name, int dso_id) : _valid(true), _dl_handle(handle), _dso_id(dso_id) {
221 _name = (const char*) os::strdup(name);
222
223 // Verify that VM runs with the same parameters as AOT tool.
224 _config = (AOTConfiguration*) load_symbol("A.config");
225 _header = (AOTHeader*) load_symbol("A.header");
226
227 verify_config();
228
229 if (!_valid && PrintAOT) {
230 tty->print("%7d ", (int) tty->time_stamp().milliseconds());
231 tty->print_cr("%4d skipped %s aot library", _dso_id, _name);
232 }
233 }
234
235 AOTCodeHeap::AOTCodeHeap(AOTLib* lib) :
236 CodeHeap("CodeHeap 'AOT'", CodeBlobType::AOT), _lib(lib), _classes(NULL), _code_to_aot(NULL) {
237 assert(_lib->is_valid(), "invalid library");
238
239 _lib_symbols_initialized = false;
240 _aot_id = 0;
241
242 _class_count = _lib->header()->_class_count;
243 _method_count = _lib->header()->_method_count;
244
245 // Collect metaspace info: names -> address in .got section
246 _metaspace_names = (const char*) _lib->load_symbol("A.meta.names");
247 _method_metadata = (address) _lib->load_symbol("A.meth.metadata");
248 _methods_offsets = (address) _lib->load_symbol("A.meth.offsets");
249 _klasses_offsets = (address) _lib->load_symbol("A.kls.offsets");
250 _dependencies = (address) _lib->load_symbol("A.kls.dependencies");
251 _code_space = (address) _lib->load_symbol("A.text");
252
253 // First cell is number of elements.
254 _klasses_got = (Metadata**) _lib->load_symbol("A.kls.got");
255 _klasses_got_size = _lib->header()->_klasses_got_size;
256
257 _metadata_got = (Metadata**) _lib->load_symbol("A.meta.got");
258 _metadata_got_size = _lib->header()->_metadata_got_size;
259
260 _oop_got = (oop*) _lib->load_symbol("A.oop.got");
261 _oop_got_size = _lib->header()->_oop_got_size;
262
263 // Collect stubs info
264 _stubs_offsets = (int*) _lib->load_symbol("A.stubs.offsets");
265
266 // code segments table
267 _code_segments = (address) _lib->load_symbol("A.code.segments");
268
269 // method state
270 _method_state = (jlong*) _lib->load_symbol("A.meth.state");
271
272 // Create a table for mapping classes
273 _classes = NEW_C_HEAP_ARRAY(AOTClass, _class_count, mtCode);
274 memset(_classes, 0, _class_count * sizeof(AOTClass));
275
276 // Create table for searching AOTCompiledMethod based on pc.
277 _code_to_aot = NEW_C_HEAP_ARRAY(CodeToAMethod, _method_count, mtCode);
278 memset(_code_to_aot, 0, _method_count * sizeof(CodeToAMethod));
279
280 _memory.set_low_boundary((char *)_code_space);
281 _memory.set_high_boundary((char *)_code_space);
282 _memory.set_low((char *)_code_space);
283 _memory.set_high((char *)_code_space);
284
285 _segmap.set_low_boundary((char *)_code_segments);
286 _segmap.set_low((char *)_code_segments);
287
288 _log2_segment_size = exact_log2(_lib->config()->_codeSegmentSize);
289
290 // Register aot stubs
291 register_stubs();
292
293 if (PrintAOT || (PrintCompilation && PrintAOT)) {
294 tty->print("%7d ", (int) tty->time_stamp().milliseconds());
295 tty->print_cr("%4d loaded %s aot library", _lib->id(), _lib->name());
296 }
297 }
298
299 void AOTCodeHeap::publish_aot(const methodHandle& mh, AOTMethodData* method_data, int code_id) {
300 // The method may be explicitly excluded by the user.
301 // Or Interpreter uses an intrinsic for this method.
302 // Or method has breakpoints.
303 if (CompilerOracle::should_exclude(mh) ||
304 !AbstractInterpreter::can_be_compiled(mh) ||
305 (mh->number_of_breakpoints() > 0)) {
306 return;
307 }
308 // Make sure no break points were set in the method in case of a safepoint
309 // in the following code until aot code is registered.
310 NoSafepointVerifier nsv;
311
312 address code = method_data->_code;
313 const char* name = method_data->_name;
314 aot_metadata* meta = method_data->_meta;
315
316 if (meta->scopes_pcs_begin() == meta->scopes_pcs_end()) {
317 // Switch off NoSafepointVerifier because log_info() may cause safepoint
318 // and it is fine because aot code will not be registered here.
319 PauseNoSafepointVerifier pnsv(&nsv);
320
321 // When the AOT compiler compiles something big we fail to generate metadata
322 // in CodeInstaller::gather_metadata. In that case the scopes_pcs_begin == scopes_pcs_end.
323 // In all successful cases we always have 2 entries of scope pcs.
324 log_info(aot, class, resolve)("Failed to load %s (no metadata available)", mh->name_and_sig_as_C_string());
325 _code_to_aot[code_id]._state = invalid;
326 return;
327 }
328
329 jlong* state_adr = &_method_state[code_id];
330 address metadata_table = method_data->_metadata_table;
331 int metadata_size = method_data->_metadata_size;
332 assert(code_id < _method_count, "sanity");
333 _aot_id++;
334
335 #ifdef ASSERT
336 if (_aot_id > CIStop || _aot_id < CIStart) {
337 // Skip compilation
338 return;
339 }
340 #endif
341 // Check one more time.
342 if (_code_to_aot[code_id]._state == invalid) {
343 return;
344 }
345 AOTCompiledMethod *aot = new AOTCompiledMethod(code, mh(), meta, metadata_table, metadata_size, state_adr, this, name, code_id, _aot_id);
346 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized");
347 _code_to_aot[code_id]._aot = aot; // Should set this first
348 if (Atomic::cmpxchg(in_use, &_code_to_aot[code_id]._state, not_set) != not_set) {
349 _code_to_aot[code_id]._aot = NULL; // Clean
350 } else { // success
351 // Publish method
352 #ifdef TIERED
353 mh->set_aot_code(aot);
354 #endif
355 Method::set_code(mh, aot);
356 if (PrintAOT || (PrintCompilation && PrintAOT)) {
357 PauseNoSafepointVerifier pnsv(&nsv); // aot code is registered already
358 aot->print_on(tty, NULL);
359 }
360 // Publish oop only after we are visible to CompiledMethodIterator
361 aot->set_oop(mh()->method_holder()->klass_holder());
362 }
363 }
364
365 void AOTCodeHeap::link_primitive_array_klasses() {
366 ResourceMark rm;
367 for (int i = T_BOOLEAN; i <= T_CONFLICT; i++) {
368 BasicType t = (BasicType)i;
369 if (is_java_primitive(t)) {
370 const Klass* arr_klass = Universe::typeArrayKlassObj(t);
371 AOTKlassData* klass_data = (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), arr_klass->signature_name());
372 if (klass_data != NULL) {
373 // Set both GOT cells, resolved and initialized klass pointers.
374 // _got_index points to second cell - resolved klass pointer.
375 _klasses_got[klass_data->_got_index-1] = (Metadata*)arr_klass; // Initialized
376 _klasses_got[klass_data->_got_index ] = (Metadata*)arr_klass; // Resolved
377 if (PrintAOT) {
378 tty->print_cr("[Found %s in %s]", arr_klass->internal_name(), _lib->name());
379 }
380 }
381 }
382 }
383 }
384
385 void AOTCodeHeap::register_stubs() {
386 int stubs_count = _stubs_offsets[0]; // contains number
387 _stubs_offsets++;
388 AOTMethodOffsets* stub_offsets = (AOTMethodOffsets*)_stubs_offsets;
389 for (int i = 0; i < stubs_count; ++i) {
390 const char* stub_name = _metaspace_names + stub_offsets[i]._name_offset;
391 address entry = _code_space + stub_offsets[i]._code_offset;
392 aot_metadata* meta = (aot_metadata *) (_method_metadata + stub_offsets[i]._meta_offset);
393 address metadata_table = (address)_metadata_got + stub_offsets[i]._metadata_got_offset;
394 int metadata_size = stub_offsets[i]._metadata_got_size;
395 int code_id = stub_offsets[i]._code_id;
396 assert(code_id < _method_count, "sanity");
397 jlong* state_adr = &_method_state[code_id];
398 int len = build_u2_from((address)stub_name);
399 stub_name += 2;
400 char* full_name = NEW_C_HEAP_ARRAY(char, len+5, mtCode);
401 if (full_name == NULL) { // No memory?
402 break;
403 }
404 memcpy(full_name, "AOT ", 4);
405 memcpy(full_name+4, stub_name, len);
406 full_name[len+4] = 0;
407 guarantee(_code_to_aot[code_id]._state != invalid, "stub %s can't be invalidated", full_name);
408 AOTCompiledMethod* aot = new AOTCompiledMethod(entry, NULL, meta, metadata_table, metadata_size, state_adr, this, full_name, code_id, i);
409 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized");
410 _code_to_aot[code_id]._aot = aot;
411 if (Atomic::cmpxchg(in_use, &_code_to_aot[code_id]._state, not_set) != not_set) {
412 fatal("stab '%s' code state is %d", full_name, _code_to_aot[code_id]._state);
413 }
414 // Adjust code buffer boundaries only for stubs because they are last in the buffer.
415 adjust_boundaries(aot);
416 if (PrintAOT && Verbose) {
417 aot->print_on(tty, NULL);
418 }
419 }
420 }
421
422 #define SET_AOT_GLOBAL_SYMBOL_VALUE(AOTSYMNAME, AOTSYMTYPE, VMSYMVAL) \
423 { \
424 AOTSYMTYPE * adr = (AOTSYMTYPE *) os::dll_lookup(_lib->dl_handle(), AOTSYMNAME); \
425 /* Check for a lookup error */ \
426 guarantee(adr != NULL, "AOT Symbol not found %s", AOTSYMNAME); \
427 *adr = (AOTSYMTYPE) VMSYMVAL; \
428 }
429
430 void AOTCodeHeap::link_graal_runtime_symbols() {
431 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorenter", address, JVMCIRuntime::monitorenter);
432 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorexit", address, JVMCIRuntime::monitorexit);
433 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_object", address, JVMCIRuntime::log_object);
434 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_printf", address, JVMCIRuntime::log_printf);
435 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_primitive", address, JVMCIRuntime::log_primitive);
436 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance", address, JVMCIRuntime::new_instance);
437 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array", address, JVMCIRuntime::new_array);
438 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array", address, JVMCIRuntime::new_multi_array);
439 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array", address, JVMCIRuntime::dynamic_new_array);
440 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_validate_object", address, JVMCIRuntime::validate_object);
441 #if INCLUDE_G1GC
442 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_pre", address, JVMCIRuntime::write_barrier_pre);
443 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_post", address, JVMCIRuntime::write_barrier_post);
444 #endif
445 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_identity_hash_code", address, JVMCIRuntime::identity_hash_code);
446 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance", address, JVMCIRuntime::dynamic_new_instance);
447 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_thread_is_interrupted", address, JVMCIRuntime::thread_is_interrupted);
448 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_exception_handler_for_pc", address, JVMCIRuntime::exception_handler_for_pc);
449 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_test_deoptimize_call_int", address, JVMCIRuntime::test_deoptimize_call_int);
450 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_and_post_jvmti_exception", address, JVMCIRuntime::throw_and_post_jvmti_exception);
451 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_klass_external_name_exception", address, JVMCIRuntime::throw_klass_external_name_exception);
452 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_class_cast_exception", address, JVMCIRuntime::throw_class_cast_exception);
453 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_message", address, JVMCIRuntime::vm_message);
454 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_error", address, JVMCIRuntime::vm_error);
455 }
456
457 void AOTCodeHeap::link_shared_runtime_symbols() {
458 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_static_entry", address, SharedRuntime::get_resolve_static_call_stub());
459 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_virtual_entry", address, SharedRuntime::get_resolve_virtual_call_stub());
460 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_opt_virtual_entry", address, SharedRuntime::get_resolve_opt_virtual_call_stub());
461 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_unpack", address, SharedRuntime::deopt_blob()->unpack());
462 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_uncommon_trap", address, SharedRuntime::deopt_blob()->uncommon_trap());
463 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_ic_miss_stub", address, SharedRuntime::get_ic_miss_stub());
464 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_handle_wrong_method_stub", address, SharedRuntime::get_handle_wrong_method_stub());
465 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_exception_handler_for_return_address", address, SharedRuntime::exception_handler_for_return_address);
466 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_register_finalizer", address, SharedRuntime::register_finalizer);
467 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_object_notify", address, JVMCIRuntime::object_notify);
468 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_object_notifyAll", address, JVMCIRuntime::object_notifyAll);
469 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_OSR_migration_end", address, SharedRuntime::OSR_migration_end);
470 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_enable_stack_reserved_zone", address, SharedRuntime::enable_stack_reserved_zone);
471 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_dynamic_invoke", address, CompilerRuntime::resolve_dynamic_invoke);
472 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_string_by_symbol", address, CompilerRuntime::resolve_string_by_symbol);
473 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_klass_by_symbol", address, CompilerRuntime::resolve_klass_by_symbol);
474 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_method_by_symbol_and_load_counters", address, CompilerRuntime::resolve_method_by_symbol_and_load_counters);
475 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_initialize_klass_by_symbol", address, CompilerRuntime::initialize_klass_by_symbol);
476 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_invocation_event", address, CompilerRuntime::invocation_event);
477 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_backedge_event", address, CompilerRuntime::backedge_event);
478
479 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dpow", address, SharedRuntime::dpow);
480 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dexp", address, SharedRuntime::dexp);
481 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dcos", address, SharedRuntime::dcos);
482 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dsin", address, SharedRuntime::dsin);
483 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dtan", address, SharedRuntime::dtan);
484 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog", address, SharedRuntime::dlog);
485 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog10", address, SharedRuntime::dlog10);
486 }
487
488 void AOTCodeHeap::link_stub_routines_symbols() {
489 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_arraycopy", address, StubRoutines::_jbyte_arraycopy);
490 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_arraycopy", address, StubRoutines::_jshort_arraycopy);
491 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_arraycopy", address, StubRoutines::_jint_arraycopy);
492 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_arraycopy", address, StubRoutines::_jlong_arraycopy);
493 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy", address, StubRoutines::_oop_arraycopy);
494 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy_uninit", address, StubRoutines::_oop_arraycopy_uninit);
495
496 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_disjoint_arraycopy", address, StubRoutines::_jbyte_disjoint_arraycopy);
497 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_disjoint_arraycopy", address, StubRoutines::_jshort_disjoint_arraycopy);
498 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_disjoint_arraycopy", address, StubRoutines::_jint_disjoint_arraycopy);
499 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_disjoint_arraycopy", address, StubRoutines::_jlong_disjoint_arraycopy);
500 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy", address, StubRoutines::_oop_disjoint_arraycopy);
501 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy_uninit", address, StubRoutines::_oop_disjoint_arraycopy_uninit);
502
503 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_arraycopy", address, StubRoutines::_arrayof_jbyte_arraycopy);
504 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_arraycopy", address, StubRoutines::_arrayof_jshort_arraycopy);
505 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_arraycopy", address, StubRoutines::_arrayof_jint_arraycopy);
506 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_arraycopy", address, StubRoutines::_arrayof_jlong_arraycopy);
507 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy", address, StubRoutines::_arrayof_oop_arraycopy);
508 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy_uninit", address, StubRoutines::_arrayof_oop_arraycopy_uninit);
509
510 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_disjoint_arraycopy", address, StubRoutines::_arrayof_jbyte_disjoint_arraycopy);
511 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_disjoint_arraycopy", address, StubRoutines::_arrayof_jshort_disjoint_arraycopy);
512 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_disjoint_arraycopy", address, StubRoutines::_arrayof_jint_disjoint_arraycopy);
513 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_disjoint_arraycopy", address, StubRoutines::_arrayof_jlong_disjoint_arraycopy);
514 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy", address, StubRoutines::_arrayof_oop_disjoint_arraycopy);
515 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy_uninit", address, StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit);
516
517 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_unsafe_arraycopy", address, StubRoutines::_unsafe_arraycopy);
518
519 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_checkcast_arraycopy", address, StubRoutines::_checkcast_arraycopy);
520
521 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_generic_arraycopy", address, StubRoutines::_generic_arraycopy);
522
523 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_encryptBlock", address, StubRoutines::_aescrypt_encryptBlock);
524 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_decryptBlock", address, StubRoutines::_aescrypt_decryptBlock);
525 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_encryptAESCrypt", address, StubRoutines::_cipherBlockChaining_encryptAESCrypt);
526 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_decryptAESCrypt", address, StubRoutines::_cipherBlockChaining_decryptAESCrypt);
527 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_update_bytes_crc32", address, StubRoutines::_updateBytesCRC32);
528 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc_table_adr", address, StubRoutines::_crc_table_adr);
529
530
531 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompress", address, StubRoutines::_sha1_implCompress);
532 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompressMB", address, StubRoutines::_sha1_implCompressMB);
533 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompress", address, StubRoutines::_sha256_implCompress);
534 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompressMB", address, StubRoutines::_sha256_implCompressMB);
535 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompress", address, StubRoutines::_sha512_implCompress);
536 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompressMB", address, StubRoutines::_sha512_implCompressMB);
537 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_multiplyToLen", address, StubRoutines::_multiplyToLen);
538
539 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_counterMode_AESCrypt", address, StubRoutines::_counterMode_AESCrypt);
540 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_ghash_processBlocks", address, StubRoutines::_ghash_processBlocks);
541 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_base64_encodeBlock", address, StubRoutines::_base64_encodeBlock);
542 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc32c_table_addr", address, StubRoutines::_crc32c_table_addr);
543 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesCRC32C", address, StubRoutines::_updateBytesCRC32C);
544 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesAdler32", address, StubRoutines::_updateBytesAdler32);
545 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_squareToLen", address, StubRoutines::_squareToLen);
546 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_mulAdd", address, StubRoutines::_mulAdd);
547 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomeryMultiply", address, StubRoutines::_montgomeryMultiply);
548 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomerySquare", address, StubRoutines::_montgomerySquare);
549 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_vectorizedMismatch", address, StubRoutines::_vectorizedMismatch);
550
551 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_throw_delayed_StackOverflowError_entry", address, StubRoutines::_throw_delayed_StackOverflowError_entry);
552
553 }
554
555 void AOTCodeHeap::link_os_symbols() {
556 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeMillis", address, os::javaTimeMillis);
557 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeNanos", address, os::javaTimeNanos);
558 }
559
560 /*
561 * Link any global symbols in precompiled DSO with dlopen() _dl_handle
562 * dso_handle.
563 */
564
565 void AOTCodeHeap::link_global_lib_symbols() {
566 if (!_lib_symbols_initialized) {
567 _lib_symbols_initialized = true;
568
569 CollectedHeap* heap = Universe::heap();
570 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_card_table_address", address, (BarrierSet::barrier_set()->is_a(BarrierSet::CardTableBarrierSet) ? ci_card_table_address() : NULL));
571 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_top_address", address, (heap->supports_inline_contig_alloc() ? heap->top_addr() : NULL));
572 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_end_address", address, (heap->supports_inline_contig_alloc() ? heap->end_addr() : NULL));
573 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_polling_page", address, os::get_polling_page());
574 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_klass_base_address", address, Universe::narrow_klass_base());
575 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_oop_base_address", address, Universe::narrow_oop_base());
576 #if INCLUDE_G1GC
577 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_log_of_heap_region_grain_bytes", int, HeapRegion::LogOfHRGrainBytes);
578 #endif
579 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_inline_contiguous_allocation_supported", bool, heap->supports_inline_contig_alloc());
580 link_shared_runtime_symbols();
581 link_stub_routines_symbols();
582 link_os_symbols();
583 link_graal_runtime_symbols();
584
585 // Link primitive array klasses.
586 link_primitive_array_klasses();
587 }
588 }
589
590 #ifndef PRODUCT
591 int AOTCodeHeap::klasses_seen = 0;
592 int AOTCodeHeap::aot_klasses_found = 0;
593 int AOTCodeHeap::aot_klasses_fp_miss = 0;
594 int AOTCodeHeap::aot_klasses_cl_miss = 0;
595 int AOTCodeHeap::aot_methods_found = 0;
596
597 void AOTCodeHeap::print_statistics() {
598 tty->print_cr("Classes seen: %d AOT classes found: %d AOT methods found: %d", klasses_seen, aot_klasses_found, aot_methods_found);
599 tty->print_cr("AOT fingerprint mismatches: %d AOT class loader mismatches: %d", aot_klasses_fp_miss, aot_klasses_cl_miss);
600 }
601 #endif
602
603 Method* AOTCodeHeap::find_method(Klass* klass, Thread* thread, const char* method_name) {
604 int method_name_len = build_u2_from((address)method_name);
605 method_name += 2;
606 const char* signature_name = method_name + method_name_len;
607 int signature_name_len = build_u2_from((address)signature_name);
608 signature_name += 2;
609 // The class should have been loaded so the method and signature should already be
610 // in the symbol table. If they're not there, the method doesn't exist.
611 TempNewSymbol name = SymbolTable::probe(method_name, method_name_len);
612 TempNewSymbol signature = SymbolTable::probe(signature_name, signature_name_len);
613
614 Method* m;
615 if (name == NULL || signature == NULL) {
616 m = NULL;
617 } else if (name == vmSymbols::object_initializer_name() ||
618 name == vmSymbols::class_initializer_name()) {
619 // Never search superclasses for constructors
620 if (klass->is_instance_klass()) {
621 m = InstanceKlass::cast(klass)->find_method(name, signature);
622 } else {
623 m = NULL;
624 }
625 } else {
626 m = klass->lookup_method(name, signature);
627 if (m == NULL && klass->is_instance_klass()) {
628 m = InstanceKlass::cast(klass)->lookup_method_in_ordered_interfaces(name, signature);
629 }
630 }
631 if (m == NULL) {
632 // Fatal error because we assume classes and methods should not be changed since aot compilation.
633 const char* klass_name = klass->external_name();
634 int klass_len = (int)strlen(klass_name);
635 char* meta_name = NEW_RESOURCE_ARRAY(char, klass_len + 1 + method_name_len + signature_name_len + 1);
636 memcpy(meta_name, klass_name, klass_len);
637 meta_name[klass_len] = '.';
638 memcpy(&meta_name[klass_len + 1], method_name, method_name_len);
639 memcpy(&meta_name[klass_len + 1 + method_name_len], signature_name, signature_name_len);
640 meta_name[klass_len + 1 + method_name_len + signature_name_len] = '\0';
641 Handle exception = Exceptions::new_exception(thread, vmSymbols::java_lang_NoSuchMethodError(), meta_name);
642 java_lang_Throwable::print(exception(), tty);
643 tty->cr();
644 java_lang_Throwable::print_stack_trace(exception, tty);
645 tty->cr();
646 fatal("Failed to find method '%s'", meta_name);
647 }
648 NOT_PRODUCT( aot_methods_found++; )
649 return m;
650 }
651
652 AOTKlassData* AOTCodeHeap::find_klass(const char *name) {
653 return (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), name);
654 }
655
656 AOTKlassData* AOTCodeHeap::find_klass(InstanceKlass* ik) {
657 ResourceMark rm;
658 AOTKlassData* klass_data = find_klass(ik->signature_name());
659 return klass_data;
660 }
661
662 bool AOTCodeHeap::is_dependent_method(Klass* dependee, AOTCompiledMethod* aot) {
663 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee);
664 AOTKlassData* klass_data = find_klass(dependee_ik);
665 if (klass_data == NULL) {
666 return false; // no AOT records for this class - no dependencies
667 }
668 if (!dependee_ik->has_passed_fingerprint_check()) {
669 return false; // different class
670 }
671
672 int methods_offset = klass_data->_dependent_methods_offset;
673 if (methods_offset >= 0) {
674 address methods_cnt_adr = _dependencies + methods_offset;
675 int methods_cnt = *(int*)methods_cnt_adr;
676 int* indexes = (int*)(methods_cnt_adr + 4);
677 for (int i = 0; i < methods_cnt; ++i) {
678 int code_id = indexes[i];
679 if (_code_to_aot[code_id]._aot == aot) {
680 return true; // found dependent method
681 }
682 }
683 }
684 return false;
685 }
686
687 void AOTCodeHeap::sweep_dependent_methods(int* indexes, int methods_cnt) {
688 int marked = 0;
689 for (int i = 0; i < methods_cnt; ++i) {
690 int code_id = indexes[i];
691 // Invalidate aot code.
692 if (Atomic::cmpxchg(invalid, &_code_to_aot[code_id]._state, not_set) != not_set) {
693 if (_code_to_aot[code_id]._state == in_use) {
694 AOTCompiledMethod* aot = _code_to_aot[code_id]._aot;
695 assert(aot != NULL, "aot should be set");
696 if (!aot->is_runtime_stub()) { // Something is wrong - should not invalidate stubs.
697 aot->mark_for_deoptimization(false);
698 marked++;
699 }
700 }
701 }
702 }
703 if (marked > 0) {
704 VM_Deoptimize op;
705 VMThread::execute(&op);
706 }
707 }
708
709 void AOTCodeHeap::sweep_dependent_methods(AOTKlassData* klass_data) {
710 // Make dependent methods non_entrant forever.
711 int methods_offset = klass_data->_dependent_methods_offset;
712 if (methods_offset >= 0) {
713 address methods_cnt_adr = _dependencies + methods_offset;
714 int methods_cnt = *(int*)methods_cnt_adr;
715 int* indexes = (int*)(methods_cnt_adr + 4);
716 sweep_dependent_methods(indexes, methods_cnt);
717 }
718 }
719
720 void AOTCodeHeap::sweep_dependent_methods(InstanceKlass* ik) {
721 AOTKlassData* klass_data = find_klass(ik);
722 vmassert(klass_data != NULL, "dependency data missing");
723 sweep_dependent_methods(klass_data);
724 }
725
726 void AOTCodeHeap::sweep_method(AOTCompiledMethod *aot) {
727 int indexes[] = {aot->method_index()};
728 sweep_dependent_methods(indexes, 1);
729 vmassert(aot->method()->code() != aot TIERED_ONLY( && aot->method()->aot_code() == NULL), "method still active");
730 }
731
732
733 bool AOTCodeHeap::load_klass_data(InstanceKlass* ik, Thread* thread) {
734 ResourceMark rm;
735
736 NOT_PRODUCT( klasses_seen++; )
737
738 // AOT does not support custom class loaders.
739 ClassLoaderData* cld = ik->class_loader_data();
740 if (!cld->is_builtin_class_loader_data()) {
741 log_trace(aot, class, load)("skip class %s for custom classloader %s (%p) tid=" INTPTR_FORMAT,
742 ik->internal_name(), cld->loader_name(), cld, p2i(thread));
743 return false;
744 }
745
746 AOTKlassData* klass_data = find_klass(ik);
747 if (klass_data == NULL) {
748 return false;
749 }
750
751 if (!ik->has_passed_fingerprint_check()) {
752 NOT_PRODUCT( aot_klasses_fp_miss++; )
753 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT,
754 ik->internal_name(), ik->is_shared() ? " (shared)" : "",
755 _lib->name(), p2i(thread));
756 sweep_dependent_methods(klass_data);
757 return false;
758 }
759
760 if (ik->has_been_redefined()) {
761 log_trace(aot, class, load)("class %s%s in %s has been redefined tid=" INTPTR_FORMAT,
762 ik->internal_name(), ik->is_shared() ? " (shared)" : "",
763 _lib->name(), p2i(thread));
764 sweep_dependent_methods(klass_data);
765 return false;
766 }
767
768 assert(klass_data->_class_id < _class_count, "invalid class id");
769 AOTClass* aot_class = &_classes[klass_data->_class_id];
770 ClassLoaderData* aot_cld = aot_class->_classloader;
771 if (aot_cld != NULL && aot_cld != cld) {
772 log_trace(aot, class, load)("class %s in %s already loaded for classloader %s (%p) vs %s (%p) tid=" INTPTR_FORMAT,
773 ik->internal_name(), _lib->name(), aot_cld->loader_name(), aot_cld, cld->loader_name(), cld, p2i(thread));
774 NOT_PRODUCT( aot_klasses_cl_miss++; )
775 return false;
776 }
777
778 if (_lib->config()->_omitAssertions && JavaAssertions::enabled(ik->name()->as_C_string(), ik->class_loader() == NULL)) {
779 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());
780 sweep_dependent_methods(klass_data);
781 return false;
782 }
783
784 NOT_PRODUCT( aot_klasses_found++; )
785
786 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));
787
788 aot_class->_classloader = cld;
789 // Set klass's Resolve (second) got cell.
790 _klasses_got[klass_data->_got_index] = ik;
791 if (ik->is_initialized()) {
792 _klasses_got[klass_data->_got_index - 1] = ik;
793 }
794
795 // Initialize global symbols of the DSO to the corresponding VM symbol values.
796 link_global_lib_symbols();
797
798 int methods_offset = klass_data->_compiled_methods_offset;
799 if (methods_offset >= 0) {
800 address methods_cnt_adr = _methods_offsets + methods_offset;
801 int methods_cnt = *(int*)methods_cnt_adr;
802 // Collect data about compiled methods
803 AOTMethodData* methods_data = NEW_RESOURCE_ARRAY(AOTMethodData, methods_cnt);
804 AOTMethodOffsets* methods_offsets = (AOTMethodOffsets*)(methods_cnt_adr + 4);
805 for (int i = 0; i < methods_cnt; ++i) {
806 AOTMethodOffsets* method_offsets = &methods_offsets[i];
807 int code_id = method_offsets->_code_id;
808 if (_code_to_aot[code_id]._state == invalid) {
809 continue; // skip AOT methods slots which have been invalidated
810 }
811 AOTMethodData* method_data = &methods_data[i];
812 const char* aot_name = _metaspace_names + method_offsets->_name_offset;
813 method_data->_name = aot_name;
814 method_data->_code = _code_space + method_offsets->_code_offset;
815 method_data->_meta = (aot_metadata*)(_method_metadata + method_offsets->_meta_offset);
816 method_data->_metadata_table = (address)_metadata_got + method_offsets->_metadata_got_offset;
817 method_data->_metadata_size = method_offsets->_metadata_got_size;
818 // aot_name format: "<u2_size>Ljava/lang/ThreadGroup;<u2_size>addUnstarted<u2_size>()V"
819 int klass_len = build_u2_from((address)aot_name);
820 const char* method_name = aot_name + 2 + klass_len;
821 Method* m = AOTCodeHeap::find_method(ik, thread, method_name);
822 methodHandle mh(thread, m);
823 if (mh->code() != NULL) { // Does it have already compiled code?
824 continue; // Don't overwrite
825 }
826 publish_aot(mh, method_data, code_id);
827 }
828 }
829 return true;
830 }
831
832 AOTCompiledMethod* AOTCodeHeap::next_in_use_at(int start) const {
833 for (int index = start; index < _method_count; index++) {
834 if (_code_to_aot[index]._state != in_use) {
835 continue; // Skip uninitialized entries.
836 }
837 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
838 return aot;
839 }
840 return NULL;
841 }
842
843 void* AOTCodeHeap::first() const {
844 return next_in_use_at(0);
845 }
846
847 void* AOTCodeHeap::next(void* p) const {
848 AOTCompiledMethod *aot = (AOTCompiledMethod *)p;
849 int next_index = aot->method_index() + 1;
850 assert(next_index <= _method_count, "");
851 if (next_index == _method_count) {
852 return NULL;
853 }
854 return next_in_use_at(next_index);
855 }
856
857 void* AOTCodeHeap::find_start(void* p) const {
858 if (!contains(p)) {
859 return NULL;
860 }
861 size_t offset = pointer_delta(p, low_boundary(), 1);
862 // Use segments table
863 size_t seg_idx = offset / _lib->config()->_codeSegmentSize;
864 if ((int)(_code_segments[seg_idx]) == 0xff) {
865 return NULL;
866 }
867 while (_code_segments[seg_idx] > 0) {
868 seg_idx -= (int)_code_segments[seg_idx];
869 }
870 int code_offset = (int)seg_idx * _lib->config()->_codeSegmentSize;
871 int aot_index = *(int*)(_code_space + code_offset);
872 AOTCompiledMethod* aot = _code_to_aot[aot_index]._aot;
873 assert(aot != NULL, "should find registered aot method");
874 return aot;
875 }
876
877 AOTCompiledMethod* AOTCodeHeap::find_aot(address p) const {
878 assert(contains(p), "should be here");
879 return (AOTCompiledMethod *)find_start(p);
880 }
881
882 CodeBlob* AOTCodeHeap::find_blob_unsafe(void* start) const {
883 return (CodeBlob*)AOTCodeHeap::find_start(start);
884 }
885
886 void AOTCodeHeap::oops_do(OopClosure* f) {
887 for (int i = 0; i < _oop_got_size; i++) {
888 oop* p = &_oop_got[i];
889 if (*p == NULL) continue; // skip non-oops
890 f->do_oop(p);
891 }
892 for (int index = 0; index < _method_count; index++) {
893 if (_code_to_aot[index]._state != in_use) {
894 continue; // Skip uninitialized entries.
895 }
896 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
897 aot->do_oops(f);
898 }
899 }
900
901 // Scan only klasses_got cells which should have only Klass*,
902 // metadata_got cells are scanned only for alive AOT methods
903 // by AOTCompiledMethod::metadata_do().
904 void AOTCodeHeap::got_metadata_do(void f(Metadata*)) {
905 for (int i = 1; i < _klasses_got_size; i++) {
906 Metadata** p = &_klasses_got[i];
907 Metadata* md = *p;
908 if (md == NULL) continue; // skip non-oops
909 if (Metaspace::contains(md)) {
910 f(md);
911 } else {
912 intptr_t meta = (intptr_t)md;
913 fatal("Invalid value in _klasses_got[%d] = " INTPTR_FORMAT, i, meta);
914 }
915 }
916 }
917
918 void AOTCodeHeap::cleanup_inline_caches() {
919 for (int index = 0; index < _method_count; index++) {
920 if (_code_to_aot[index]._state != in_use) {
921 continue; // Skip uninitialized entries.
922 }
923 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
924 aot->cleanup_inline_caches();
925 }
926 }
927
928 #ifdef ASSERT
929 int AOTCodeHeap::verify_icholder_relocations() {
930 int count = 0;
931 for (int index = 0; index < _method_count; index++) {
932 if (_code_to_aot[index]._state != in_use) {
933 continue; // Skip uninitialized entries.
934 }
935 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
936 count += aot->verify_icholder_relocations();
937 }
938 return count;
939 }
940 #endif
941
942 void AOTCodeHeap::metadata_do(void f(Metadata*)) {
943 for (int index = 0; index < _method_count; index++) {
944 if (_code_to_aot[index]._state != in_use) {
945 continue; // Skip uninitialized entries.
946 }
947 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
948 if (aot->_is_alive()) {
949 aot->metadata_do(f);
950 }
951 }
952 // Scan klasses_got cells.
953 got_metadata_do(f);
954 }
955
956 bool AOTCodeHeap::reconcile_dynamic_klass(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Klass *dyno_klass, const char *descriptor1, const char *descriptor2) {
957 const char * const descriptors[2] = {descriptor1, descriptor2};
958 JavaThread *thread = JavaThread::current();
959 ResourceMark rm(thread);
960
961 AOTKlassData* holder_data = find_klass(holder);
962 vmassert(holder_data != NULL, "klass %s not found", holder->signature_name());
963 vmassert(is_dependent_method(holder, caller), "sanity");
964
965 AOTKlassData* dyno_data = NULL;
966 bool adapter_failed = false;
967 char buf[64];
968 int descriptor_index = 0;
969 // descriptors[0] specific name ("adapter:<method_id>") for matching
970 // descriptors[1] fall-back name ("adapter") for depdencies
971 while (descriptor_index < 2) {
972 const char *descriptor = descriptors[descriptor_index];
973 if (descriptor == NULL) {
974 break;
975 }
976 jio_snprintf(buf, sizeof buf, "%s<%d:%d>", descriptor, holder_data->_class_id, index);
977 dyno_data = find_klass(buf);
978 if (dyno_data != NULL) {
979 break;
980 }
981 // If match failed then try fall-back for dependencies
982 ++descriptor_index;
983 adapter_failed = true;
984 }
985
986 if (dyno_data == NULL && dyno_klass == NULL) {
987 // all is well, no (appendix) at compile-time, and still none
988 return true;
989 }
990
991 if (dyno_data == NULL) {
992 // no (appendix) at build-time, but now there is
993 sweep_dependent_methods(holder_data);
994 return false;
995 }
996
997 if (adapter_failed) {
998 // adapter method mismatch
999 sweep_dependent_methods(holder_data);
1000 sweep_dependent_methods(dyno_data);
1001 return false;
1002 }
1003
1004 if (dyno_klass == NULL) {
1005 // (appendix) at build-time, none now
1006 sweep_dependent_methods(holder_data);
1007 sweep_dependent_methods(dyno_data);
1008 return false;
1009 }
1010
1011 // TODO: support array appendix object
1012 if (!dyno_klass->is_instance_klass()) {
1013 sweep_dependent_methods(holder_data);
1014 sweep_dependent_methods(dyno_data);
1015 return false;
1016 }
1017
1018 InstanceKlass* dyno = InstanceKlass::cast(dyno_klass);
1019
1020 if (!dyno->is_unsafe_anonymous()) {
1021 if (_klasses_got[dyno_data->_got_index] != dyno) {
1022 // compile-time class different from runtime class, fail and deoptimize
1023 sweep_dependent_methods(holder_data);
1024 sweep_dependent_methods(dyno_data);
1025 return false;
1026 }
1027
1028 if (dyno->is_initialized()) {
1029 _klasses_got[dyno_data->_got_index - 1] = dyno;
1030 }
1031 return true;
1032 }
1033
1034 // TODO: support anonymous supers
1035 if (!dyno->supers_have_passed_fingerprint_checks() || dyno->get_stored_fingerprint() != dyno_data->_fingerprint) {
1036 NOT_PRODUCT( aot_klasses_fp_miss++; )
1037 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT,
1038 dyno->internal_name(), dyno->is_shared() ? " (shared)" : "",
1039 _lib->name(), p2i(thread));
1040 sweep_dependent_methods(holder_data);
1041 sweep_dependent_methods(dyno_data);
1042 return false;
1043 }
1044
1045 _klasses_got[dyno_data->_got_index] = dyno;
1046 if (dyno->is_initialized()) {
1047 _klasses_got[dyno_data->_got_index - 1] = dyno;
1048 }
1049
1050 // TODO: hook up any AOT code
1051 // load_klass_data(dyno_data, thread);
1052 return true;
1053 }
1054
1055 bool AOTCodeHeap::reconcile_dynamic_method(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Method *adapter_method) {
1056 InstanceKlass *adapter_klass = adapter_method->method_holder();
1057 char buf[64];
1058 jio_snprintf(buf, sizeof buf, "adapter:%d", adapter_method->method_idnum());
1059 if (!reconcile_dynamic_klass(caller, holder, index, adapter_klass, buf, "adapter")) {
1060 return false;
1061 }
1062 return true;
1063 }
1064
1065 bool AOTCodeHeap::reconcile_dynamic_invoke(AOTCompiledMethod* caller, InstanceKlass* holder, int index, Method* adapter_method, Klass *appendix_klass) {
1066 if (!reconcile_dynamic_klass(caller, holder, index, appendix_klass, "appendix")) {
1067 return false;
1068 }
1069
1070 if (!reconcile_dynamic_method(caller, holder, index, adapter_method)) {
1071 return false;
1072 }
1073
1074 return true;
1075 }