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.hpp"
29 #include "classfile/javaAssertions.hpp"
30 #include "gc/shared/cardTable.hpp"
31 #include "gc/shared/cardTableModRefBS.hpp"
32 #include "gc/g1/heapRegion.hpp"
33 #include "gc/shared/gcLocker.hpp"
34 #include "interpreter/abstractInterpreter.hpp"
35 #include "jvmci/compilerRuntime.hpp"
36 #include "jvmci/jvmciRuntime.hpp"
37 #include "oops/method.inline.hpp"
38 #include "runtime/os.hpp"
39 #include "runtime/sharedRuntime.hpp"
40 #include "runtime/vm_operations.hpp"
41
42 bool AOTLib::_narrow_oop_shift_initialized = false;
43 int AOTLib::_narrow_oop_shift = 0;
44 int AOTLib::_narrow_klass_shift = 0;
45
46 address AOTLib::load_symbol(const char *name) {
47 address symbol = (address) os::dll_lookup(_dl_handle, name);
48 if (symbol == NULL) {
49 tty->print_cr("Shared file %s error: missing %s", _name, name);
50 vm_exit(1);
51 }
52 return symbol;
53 }
54
55 Klass* AOTCodeHeap::get_klass_from_got(const char* klass_name, int klass_len, const Method* method) {
56 AOTKlassData* klass_data = (AOTKlassData*)_lib->load_symbol(klass_name);
57 Klass* k = (Klass*)_klasses_got[klass_data->_got_index];
58 if (k == NULL) {
59 Thread* thread = Thread::current();
60 k = lookup_klass(klass_name, klass_len, method, thread);
61 // Note, exceptions are cleared.
62 if (k == NULL) {
63 fatal("Shared file %s error: klass %s should be resolved already", _lib->name(), klass_name);
64 vm_exit(1);
65 }
66 // Patch now to avoid extra runtime lookup
67 _klasses_got[klass_data->_got_index] = k;
68 if (k->is_instance_klass()) {
69 InstanceKlass* ik = InstanceKlass::cast(k);
70 if (ik->is_initialized()) {
71 _klasses_got[klass_data->_got_index - 1] = ik;
72 }
73 }
74 }
75 return k;
76 }
77
78 Klass* AOTCodeHeap::lookup_klass(const char* name, int len, const Method* method, Thread* thread) {
79 ResourceMark rm(thread);
80 assert(method != NULL, "incorrect call parameter");
81 methodHandle caller(thread, (Method*)method);
82
83 // Use class loader of aot method.
84 Handle loader(thread, caller->method_holder()->class_loader());
85 Handle protection_domain(thread, caller->method_holder()->protection_domain());
86
87 // Ignore wrapping L and ;
88 if (name[0] == 'L') {
89 assert(len > 2, "small name %s", name);
90 name++;
91 len -= 2;
92 }
93 TempNewSymbol sym = SymbolTable::probe(name, len);
94 if (sym == NULL) {
95 log_debug(aot, class, resolve)("Probe failed for AOT class %s", name);
96 return NULL;
97 }
98 Klass* k = SystemDictionary::find_instance_or_array_klass(sym, loader, protection_domain, thread);
99 assert(!thread->has_pending_exception(), "should not throw");
100
101 if (k != NULL) {
102 log_info(aot, class, resolve)("%s %s (lookup)", caller->method_holder()->external_name(), k->external_name());
103 }
104 return k;
105 }
106
107 void AOTLib::handle_config_error(const char* format, ...) {
108 if (PrintAOT) {
109 va_list ap;
110 va_start(ap, format);
111 tty->vprint_cr(format, ap);
112 va_end(ap);
113 }
114 if (UseAOTStrictLoading) {
115 vm_exit(1);
116 }
117 _valid = false;
118 }
119
120 void AOTLib::verify_flag(bool aot_flag, bool flag, const char* name) {
121 if (_valid && aot_flag != flag) {
122 handle_config_error("Shared file %s error: %s has different value '%s' from current '%s'", _name, name , (aot_flag ? "true" : "false"), (flag ? "true" : "false"));
123 }
124 }
125
126 void AOTLib::verify_flag(int aot_flag, int flag, const char* name) {
127 if (_valid && aot_flag != flag) {
128 handle_config_error("Shared file %s error: %s has different value '%d' from current '%d'", _name, name , aot_flag, flag);
129 }
130 }
131
132 void AOTLib::verify_config() {
133 GrowableArray<AOTLib*>* libraries = AOTLoader::libraries();
134 for (GrowableArrayIterator<AOTLib*> lib = libraries->begin(); lib != libraries->end(); ++lib) {
135 if ((*lib)->_config == _config) {
136 handle_config_error("AOT library %s already loaded.", (*lib)->_name);
137 return;
138 }
139 }
140
141 if (_header->_version != AOTHeader::AOT_SHARED_VERSION) {
142 handle_config_error("Invalid version of the shared file %s. Expected %d but was %d", _name, _header->_version, AOTHeader::AOT_SHARED_VERSION);
143 return;
144 }
145
146 const char* aot_jvm_version = (const char*)_header + _header->_jvm_version_offset + 2;
147 if (strcmp(aot_jvm_version, VM_Version::jre_release_version()) != 0) {
148 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());
149 return;
150 }
151
152 // Debug VM has different layout of runtime and metadata structures
153 #ifdef ASSERT
154 verify_flag(_config->_debug_VM, true, "Debug VM version");
155 #else
156 verify_flag(!(_config->_debug_VM), true, "Product VM version");
157 #endif
158 // Check configuration size
159 verify_flag(_config->_config_size, AOTConfiguration::CONFIG_SIZE, "AOT configuration size");
160
161 // Check flags
162 verify_flag(_config->_useCompressedOops, UseCompressedOops, "UseCompressedOops");
163 verify_flag(_config->_useCompressedClassPointers, UseCompressedClassPointers, "UseCompressedClassPointers");
164 verify_flag(_config->_useG1GC, UseG1GC, "UseG1GC");
165 verify_flag(_config->_useTLAB, UseTLAB, "UseTLAB");
166 verify_flag(_config->_useBiasedLocking, UseBiasedLocking, "UseBiasedLocking");
167 verify_flag(_config->_objectAlignment, ObjectAlignmentInBytes, "ObjectAlignmentInBytes");
168 verify_flag(_config->_contendedPaddingWidth, ContendedPaddingWidth, "ContendedPaddingWidth");
169 verify_flag(_config->_fieldsAllocationStyle, FieldsAllocationStyle, "FieldsAllocationStyle");
170 verify_flag(_config->_compactFields, CompactFields, "CompactFields");
171 verify_flag(_config->_enableContended, EnableContended, "EnableContended");
172 verify_flag(_config->_restrictContended, RestrictContended, "RestrictContended");
173 verify_flag(_config->_threadLocalHandshakes, ThreadLocalHandshakes, "ThreadLocalHandshakes");
174
175 if (!TieredCompilation && _config->_tieredAOT) {
176 handle_config_error("Shared file %s error: Expected to run with tiered compilation on", _name);
177 }
178
179 // Shifts are static values which initialized by 0 until java heap initialization.
180 // AOT libs are loaded before heap initialized so shift values are not set.
181 // It is okay since ObjectAlignmentInBytes flag which defines shifts value is set before AOT libs are loaded.
182 // Set shifts value based on first AOT library config.
183 if (UseCompressedOops && _valid) {
184 if (!_narrow_oop_shift_initialized) {
185 _narrow_oop_shift = _config->_narrowOopShift;
186 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set
187 _narrow_klass_shift = _config->_narrowKlassShift;
188 }
189 _narrow_oop_shift_initialized = true;
190 } else {
191 verify_flag(_config->_narrowOopShift, _narrow_oop_shift, "aot_config->_narrowOopShift");
192 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set
193 verify_flag(_config->_narrowKlassShift, _narrow_klass_shift, "aot_config->_narrowKlassShift");
194 }
195 }
196 }
197 }
198
199 AOTLib::~AOTLib() {
200 os::free((void*) _name);
201 }
202
203 AOTCodeHeap::~AOTCodeHeap() {
204 if (_classes != NULL) {
205 FREE_C_HEAP_ARRAY(AOTClass, _classes);
206 }
207 if (_code_to_aot != NULL) {
208 FREE_C_HEAP_ARRAY(CodeToAMethod, _code_to_aot);
209 }
210 }
211
212 AOTLib::AOTLib(void* handle, const char* name, int dso_id) : _valid(true), _dl_handle(handle), _dso_id(dso_id) {
213 _name = (const char*) os::strdup(name);
214
215 // Verify that VM runs with the same parameters as AOT tool.
216 _config = (AOTConfiguration*) load_symbol("A.config");
217 _header = (AOTHeader*) load_symbol("A.header");
218
219 verify_config();
220
221 if (!_valid && PrintAOT) {
222 tty->print("%7d ", (int) tty->time_stamp().milliseconds());
223 tty->print_cr("%4d skipped %s aot library", _dso_id, _name);
224 }
225 }
226
227 AOTCodeHeap::AOTCodeHeap(AOTLib* lib) :
228 CodeHeap("CodeHeap 'AOT'", CodeBlobType::AOT), _lib(lib), _classes(NULL), _code_to_aot(NULL) {
229 assert(_lib->is_valid(), "invalid library");
230
231 _lib_symbols_initialized = false;
232 _aot_id = 0;
233
234 _class_count = _lib->header()->_class_count;
235 _method_count = _lib->header()->_method_count;
236
237 // Collect metaspace info: names -> address in .got section
238 _metaspace_names = (const char*) _lib->load_symbol("A.meta.names");
239 _method_metadata = (address) _lib->load_symbol("A.meth.metadata");
240 _methods_offsets = (address) _lib->load_symbol("A.meth.offsets");
241 _klasses_offsets = (address) _lib->load_symbol("A.kls.offsets");
242 _dependencies = (address) _lib->load_symbol("A.kls.dependencies");
243 _code_space = (address) _lib->load_symbol("A.text");
244
245 // First cell is number of elements.
246 _klasses_got = (Metadata**) _lib->load_symbol("A.kls.got");
247 _klasses_got_size = _lib->header()->_klasses_got_size;
248
249 _metadata_got = (Metadata**) _lib->load_symbol("A.meta.got");
250 _metadata_got_size = _lib->header()->_metadata_got_size;
251
252 _oop_got = (oop*) _lib->load_symbol("A.oop.got");
253 _oop_got_size = _lib->header()->_oop_got_size;
254
255 // Collect stubs info
256 _stubs_offsets = (int*) _lib->load_symbol("A.stubs.offsets");
257
258 // code segments table
259 _code_segments = (address) _lib->load_symbol("A.code.segments");
260
261 // method state
262 _method_state = (jlong*) _lib->load_symbol("A.meth.state");
263
264 // Create a table for mapping classes
265 _classes = NEW_C_HEAP_ARRAY(AOTClass, _class_count, mtCode);
266 memset(_classes, 0, _class_count * sizeof(AOTClass));
267
268 // Create table for searching AOTCompiledMethod based on pc.
269 _code_to_aot = NEW_C_HEAP_ARRAY(CodeToAMethod, _method_count, mtCode);
270 memset(_code_to_aot, 0, _method_count * sizeof(CodeToAMethod));
271
272 _memory.set_low_boundary((char *)_code_space);
273 _memory.set_high_boundary((char *)_code_space);
274 _memory.set_low((char *)_code_space);
275 _memory.set_high((char *)_code_space);
276
277 _segmap.set_low_boundary((char *)_code_segments);
278 _segmap.set_low((char *)_code_segments);
279
280 _log2_segment_size = exact_log2(_lib->config()->_codeSegmentSize);
281
282 // Register aot stubs
283 register_stubs();
284
285 if (PrintAOT || (PrintCompilation && PrintAOT)) {
286 tty->print("%7d ", (int) tty->time_stamp().milliseconds());
287 tty->print_cr("%4d loaded %s aot library", _lib->id(), _lib->name());
288 }
289 }
290
291 void AOTCodeHeap::publish_aot(const methodHandle& mh, AOTMethodData* method_data, int code_id) {
292 // The method may be explicitly excluded by the user.
293 // Or Interpreter uses an intrinsic for this method.
294 if (CompilerOracle::should_exclude(mh) || !AbstractInterpreter::can_be_compiled(mh)) {
295 return;
296 }
297
298 address code = method_data->_code;
299 const char* name = method_data->_name;
300 aot_metadata* meta = method_data->_meta;
301
302 if (meta->scopes_pcs_begin() == meta->scopes_pcs_end()) {
303 // When the AOT compiler compiles something big we fail to generate metadata
304 // in CodeInstaller::gather_metadata. In that case the scopes_pcs_begin == scopes_pcs_end.
305 // In all successful cases we always have 2 entries of scope pcs.
306 log_info(aot, class, resolve)("Failed to load %s (no metadata available)", mh->name_and_sig_as_C_string());
307 _code_to_aot[code_id]._state = invalid;
308 return;
309 }
310
311 jlong* state_adr = &_method_state[code_id];
312 address metadata_table = method_data->_metadata_table;
313 int metadata_size = method_data->_metadata_size;
314 assert(code_id < _method_count, "sanity");
315 _aot_id++;
316
317 #ifdef ASSERT
318 if (_aot_id > CIStop || _aot_id < CIStart) {
319 // Skip compilation
320 return;
321 }
322 #endif
323 // Check one more time.
324 if (_code_to_aot[code_id]._state == invalid) {
325 return;
326 }
327 AOTCompiledMethod *aot = new AOTCompiledMethod(code, mh(), meta, metadata_table, metadata_size, state_adr, this, name, code_id, _aot_id);
328 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized");
329 _code_to_aot[code_id]._aot = aot; // Should set this first
330 if (Atomic::cmpxchg(in_use, &_code_to_aot[code_id]._state, not_set) != not_set) {
331 _code_to_aot[code_id]._aot = NULL; // Clean
332 } else { // success
333 // Publish method
334 #ifdef TIERED
335 mh->set_aot_code(aot);
336 #endif
337 Method::set_code(mh, aot);
338 if (PrintAOT || (PrintCompilation && PrintAOT)) {
339 aot->print_on(tty, NULL);
340 }
341 // Publish oop only after we are visible to CompiledMethodIterator
342 aot->set_oop(mh()->method_holder()->klass_holder());
343 }
344 }
345
346 void AOTCodeHeap::link_primitive_array_klasses() {
347 ResourceMark rm;
348 for (int i = T_BOOLEAN; i <= T_CONFLICT; i++) {
349 BasicType t = (BasicType)i;
350 if (is_java_primitive(t)) {
351 const Klass* arr_klass = Universe::typeArrayKlassObj(t);
352 AOTKlassData* klass_data = (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), arr_klass->signature_name());
353 if (klass_data != NULL) {
354 // Set both GOT cells, resolved and initialized klass pointers.
355 // _got_index points to second cell - resolved klass pointer.
356 _klasses_got[klass_data->_got_index-1] = (Metadata*)arr_klass; // Initialized
357 _klasses_got[klass_data->_got_index ] = (Metadata*)arr_klass; // Resolved
358 if (PrintAOT) {
359 tty->print_cr("[Found %s in %s]", arr_klass->internal_name(), _lib->name());
360 }
361 }
362 }
363 }
364 }
365
366 void AOTCodeHeap::register_stubs() {
367 int stubs_count = _stubs_offsets[0]; // contains number
368 _stubs_offsets++;
369 AOTMethodOffsets* stub_offsets = (AOTMethodOffsets*)_stubs_offsets;
370 for (int i = 0; i < stubs_count; ++i) {
371 const char* stub_name = _metaspace_names + stub_offsets[i]._name_offset;
372 address entry = _code_space + stub_offsets[i]._code_offset;
373 aot_metadata* meta = (aot_metadata *) (_method_metadata + stub_offsets[i]._meta_offset);
374 address metadata_table = (address)_metadata_got + stub_offsets[i]._metadata_got_offset;
375 int metadata_size = stub_offsets[i]._metadata_got_size;
376 int code_id = stub_offsets[i]._code_id;
377 assert(code_id < _method_count, "sanity");
378 jlong* state_adr = &_method_state[code_id];
379 int len = build_u2_from((address)stub_name);
380 stub_name += 2;
381 char* full_name = NEW_C_HEAP_ARRAY(char, len+5, mtCode);
382 if (full_name == NULL) { // No memory?
383 break;
384 }
385 memcpy(full_name, "AOT ", 4);
386 memcpy(full_name+4, stub_name, len);
387 full_name[len+4] = 0;
388 guarantee(_code_to_aot[code_id]._state != invalid, "stub %s can't be invalidated", full_name);
389 AOTCompiledMethod* aot = new AOTCompiledMethod(entry, NULL, meta, metadata_table, metadata_size, state_adr, this, full_name, code_id, i);
390 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized");
391 _code_to_aot[code_id]._aot = aot;
392 if (Atomic::cmpxchg(in_use, &_code_to_aot[code_id]._state, not_set) != not_set) {
393 fatal("stab '%s' code state is %d", full_name, _code_to_aot[code_id]._state);
394 }
395 // Adjust code buffer boundaries only for stubs because they are last in the buffer.
396 adjust_boundaries(aot);
397 if (PrintAOT && Verbose) {
398 aot->print_on(tty, NULL);
399 }
400 }
401 }
402
403 #define SET_AOT_GLOBAL_SYMBOL_VALUE(AOTSYMNAME, AOTSYMTYPE, VMSYMVAL) \
404 { \
405 AOTSYMTYPE * adr = (AOTSYMTYPE *) os::dll_lookup(_lib->dl_handle(), AOTSYMNAME); \
406 /* Check for a lookup error */ \
407 guarantee(adr != NULL, "AOT Symbol not found %s", AOTSYMNAME); \
408 *adr = (AOTSYMTYPE) VMSYMVAL; \
409 }
410
411 void AOTCodeHeap::link_graal_runtime_symbols() {
412 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorenter", address, JVMCIRuntime::monitorenter);
413 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorexit", address, JVMCIRuntime::monitorexit);
414 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_object", address, JVMCIRuntime::log_object);
415 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_printf", address, JVMCIRuntime::log_printf);
416 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_primitive", address, JVMCIRuntime::log_primitive);
417 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance", address, JVMCIRuntime::new_instance);
418 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array", address, JVMCIRuntime::new_array);
419 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array", address, JVMCIRuntime::new_multi_array);
420 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array", address, JVMCIRuntime::dynamic_new_array);
421 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_validate_object", address, JVMCIRuntime::validate_object);
422 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_pre", address, JVMCIRuntime::write_barrier_pre);
423 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_identity_hash_code", address, JVMCIRuntime::identity_hash_code);
424 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_post", address, JVMCIRuntime::write_barrier_post);
425 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance", address, JVMCIRuntime::dynamic_new_instance);
426 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_thread_is_interrupted", address, JVMCIRuntime::thread_is_interrupted);
427 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_exception_handler_for_pc", address, JVMCIRuntime::exception_handler_for_pc);
428 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_test_deoptimize_call_int", address, JVMCIRuntime::test_deoptimize_call_int);
429 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_and_post_jvmti_exception", address, JVMCIRuntime::throw_and_post_jvmti_exception);
430 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_klass_external_name_exception", address, JVMCIRuntime::throw_klass_external_name_exception);
431 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_class_cast_exception", address, JVMCIRuntime::throw_class_cast_exception);
432 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_message", address, JVMCIRuntime::vm_message);
433 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_error", address, JVMCIRuntime::vm_error);
434 }
435
436 void AOTCodeHeap::link_shared_runtime_symbols() {
437 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_static_entry", address, SharedRuntime::get_resolve_static_call_stub());
438 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_virtual_entry", address, SharedRuntime::get_resolve_virtual_call_stub());
439 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_opt_virtual_entry", address, SharedRuntime::get_resolve_opt_virtual_call_stub());
440 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_unpack", address, SharedRuntime::deopt_blob()->unpack());
441 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_uncommon_trap", address, SharedRuntime::deopt_blob()->uncommon_trap());
442 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_ic_miss_stub", address, SharedRuntime::get_ic_miss_stub());
443 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_handle_wrong_method_stub", address, SharedRuntime::get_handle_wrong_method_stub());
444 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_exception_handler_for_return_address", address, SharedRuntime::exception_handler_for_return_address);
445 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_register_finalizer", address, SharedRuntime::register_finalizer);
446 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_OSR_migration_end", address, SharedRuntime::OSR_migration_end);
447 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_dynamic_invoke", address, CompilerRuntime::resolve_dynamic_invoke);
448 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_string_by_symbol", address, CompilerRuntime::resolve_string_by_symbol);
449 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_klass_by_symbol", address, CompilerRuntime::resolve_klass_by_symbol);
450 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_method_by_symbol_and_load_counters", address, CompilerRuntime::resolve_method_by_symbol_and_load_counters);
451 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_initialize_klass_by_symbol", address, CompilerRuntime::initialize_klass_by_symbol);
452 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_invocation_event", address, CompilerRuntime::invocation_event);
453 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_backedge_event", address, CompilerRuntime::backedge_event);
454
455 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dpow", address, SharedRuntime::dpow);
456 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dexp", address, SharedRuntime::dexp);
457 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dcos", address, SharedRuntime::dcos);
458 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dsin", address, SharedRuntime::dsin);
459 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dtan", address, SharedRuntime::dtan);
460 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog", address, SharedRuntime::dlog);
461 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog10", address, SharedRuntime::dlog10);
462 }
463
464 void AOTCodeHeap::link_stub_routines_symbols() {
465 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_arraycopy", address, StubRoutines::_jbyte_arraycopy);
466 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_arraycopy", address, StubRoutines::_jshort_arraycopy);
467 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_arraycopy", address, StubRoutines::_jint_arraycopy);
468 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_arraycopy", address, StubRoutines::_jlong_arraycopy);
469 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy", address, StubRoutines::_oop_arraycopy);
470 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy_uninit", address, StubRoutines::_oop_arraycopy_uninit);
471
472 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_disjoint_arraycopy", address, StubRoutines::_jbyte_disjoint_arraycopy);
473 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_disjoint_arraycopy", address, StubRoutines::_jshort_disjoint_arraycopy);
474 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_disjoint_arraycopy", address, StubRoutines::_jint_disjoint_arraycopy);
475 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_disjoint_arraycopy", address, StubRoutines::_jlong_disjoint_arraycopy);
476 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy", address, StubRoutines::_oop_disjoint_arraycopy);
477 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy_uninit", address, StubRoutines::_oop_disjoint_arraycopy_uninit);
478
479 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_arraycopy", address, StubRoutines::_arrayof_jbyte_arraycopy);
480 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_arraycopy", address, StubRoutines::_arrayof_jshort_arraycopy);
481 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_arraycopy", address, StubRoutines::_arrayof_jint_arraycopy);
482 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_arraycopy", address, StubRoutines::_arrayof_jlong_arraycopy);
483 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy", address, StubRoutines::_arrayof_oop_arraycopy);
484 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy_uninit", address, StubRoutines::_arrayof_oop_arraycopy_uninit);
485
486 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_disjoint_arraycopy", address, StubRoutines::_arrayof_jbyte_disjoint_arraycopy);
487 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_disjoint_arraycopy", address, StubRoutines::_arrayof_jshort_disjoint_arraycopy);
488 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_disjoint_arraycopy", address, StubRoutines::_arrayof_jint_disjoint_arraycopy);
489 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_disjoint_arraycopy", address, StubRoutines::_arrayof_jlong_disjoint_arraycopy);
490 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy", address, StubRoutines::_arrayof_oop_disjoint_arraycopy);
491 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy_uninit", address, StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit);
492
493 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_unsafe_arraycopy", address, StubRoutines::_unsafe_arraycopy);
494
495 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_checkcast_arraycopy", address, StubRoutines::_checkcast_arraycopy);
496
497 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_generic_arraycopy", address, StubRoutines::_generic_arraycopy);
498
499 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_encryptBlock", address, StubRoutines::_aescrypt_encryptBlock);
500 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_decryptBlock", address, StubRoutines::_aescrypt_decryptBlock);
501 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_encryptAESCrypt", address, StubRoutines::_cipherBlockChaining_encryptAESCrypt);
502 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_decryptAESCrypt", address, StubRoutines::_cipherBlockChaining_decryptAESCrypt);
503 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_update_bytes_crc32", address, StubRoutines::_updateBytesCRC32);
504 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc_table_adr", address, StubRoutines::_crc_table_adr);
505
506
507 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompress", address, StubRoutines::_sha1_implCompress);
508 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompressMB", address, StubRoutines::_sha1_implCompressMB);
509 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompress", address, StubRoutines::_sha256_implCompress);
510 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompressMB", address, StubRoutines::_sha256_implCompressMB);
511 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompress", address, StubRoutines::_sha512_implCompress);
512 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompressMB", address, StubRoutines::_sha512_implCompressMB);
513 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_multiplyToLen", address, StubRoutines::_multiplyToLen);
514
515 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_counterMode_AESCrypt", address, StubRoutines::_counterMode_AESCrypt);
516 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_ghash_processBlocks", address, StubRoutines::_ghash_processBlocks);
517 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc32c_table_addr", address, StubRoutines::_crc32c_table_addr);
518 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesCRC32C", address, StubRoutines::_updateBytesCRC32C);
519 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesAdler32", address, StubRoutines::_updateBytesAdler32);
520 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_squareToLen", address, StubRoutines::_squareToLen);
521 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_mulAdd", address, StubRoutines::_mulAdd);
522 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomeryMultiply", address, StubRoutines::_montgomeryMultiply);
523 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomerySquare", address, StubRoutines::_montgomerySquare);
524 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_vectorizedMismatch", address, StubRoutines::_vectorizedMismatch);
525
526 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_throw_delayed_StackOverflowError_entry", address, StubRoutines::_throw_delayed_StackOverflowError_entry);
527
528 }
529
530 void AOTCodeHeap::link_os_symbols() {
531 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeMillis", address, os::javaTimeMillis);
532 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeNanos", address, os::javaTimeNanos);
533 }
534
535 /*
536 * Link any global symbols in precompiled DSO with dlopen() _dl_handle
537 * dso_handle.
538 */
539
540 void AOTCodeHeap::link_global_lib_symbols() {
541 if (!_lib_symbols_initialized) {
542 _lib_symbols_initialized = true;
543
544 CollectedHeap* heap = Universe::heap();
545 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_card_table_address", address, ci_card_table_address());
546 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_top_address", address, (heap->supports_inline_contig_alloc() ? heap->top_addr() : NULL));
547 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_end_address", address, (heap->supports_inline_contig_alloc() ? heap->end_addr() : NULL));
548 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_polling_page", address, os::get_polling_page());
549 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_klass_base_address", address, Universe::narrow_klass_base());
550 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_oop_base_address", address, Universe::narrow_oop_base());
551 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_log_of_heap_region_grain_bytes", int, HeapRegion::LogOfHRGrainBytes);
552 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_inline_contiguous_allocation_supported", bool, heap->supports_inline_contig_alloc());
553 link_shared_runtime_symbols();
554 link_stub_routines_symbols();
555 link_os_symbols();
556 link_graal_runtime_symbols();
557
558 // Link primitive array klasses.
559 link_primitive_array_klasses();
560 }
561 }
562
563 #ifndef PRODUCT
564 int AOTCodeHeap::klasses_seen = 0;
565 int AOTCodeHeap::aot_klasses_found = 0;
566 int AOTCodeHeap::aot_klasses_fp_miss = 0;
567 int AOTCodeHeap::aot_klasses_cl_miss = 0;
568 int AOTCodeHeap::aot_methods_found = 0;
569
570 void AOTCodeHeap::print_statistics() {
571 tty->print_cr("Classes seen: %d AOT classes found: %d AOT methods found: %d", klasses_seen, aot_klasses_found, aot_methods_found);
572 tty->print_cr("AOT fingerprint mismatches: %d AOT class loader mismatches: %d", aot_klasses_fp_miss, aot_klasses_cl_miss);
573 }
574 #endif
575
576 Method* AOTCodeHeap::find_method(Klass* klass, Thread* thread, const char* method_name) {
577 int method_name_len = build_u2_from((address)method_name);
578 method_name += 2;
579 const char* signature_name = method_name + method_name_len;
580 int signature_name_len = build_u2_from((address)signature_name);
581 signature_name += 2;
582 // The class should have been loaded so the method and signature should already be
583 // in the symbol table. If they're not there, the method doesn't exist.
584 TempNewSymbol name = SymbolTable::probe(method_name, method_name_len);
585 TempNewSymbol signature = SymbolTable::probe(signature_name, signature_name_len);
586
587 Method* m;
588 if (name == NULL || signature == NULL) {
589 m = NULL;
590 } else if (name == vmSymbols::object_initializer_name() ||
591 name == vmSymbols::class_initializer_name()) {
592 // Never search superclasses for constructors
593 if (klass->is_instance_klass()) {
594 m = InstanceKlass::cast(klass)->find_method(name, signature);
595 } else {
596 m = NULL;
597 }
598 } else {
599 m = klass->lookup_method(name, signature);
600 if (m == NULL && klass->is_instance_klass()) {
601 m = InstanceKlass::cast(klass)->lookup_method_in_ordered_interfaces(name, signature);
602 }
603 }
604 if (m == NULL) {
605 // Fatal error because we assume classes and methods should not be changed since aot compilation.
606 const char* klass_name = klass->external_name();
607 int klass_len = (int)strlen(klass_name);
608 char* meta_name = NEW_RESOURCE_ARRAY(char, klass_len + 1 + method_name_len + signature_name_len + 1);
609 memcpy(meta_name, klass_name, klass_len);
610 meta_name[klass_len] = '.';
611 memcpy(&meta_name[klass_len + 1], method_name, method_name_len);
612 memcpy(&meta_name[klass_len + 1 + method_name_len], signature_name, signature_name_len);
613 meta_name[klass_len + 1 + method_name_len + signature_name_len] = '\0';
614 Handle exception = Exceptions::new_exception(thread, vmSymbols::java_lang_NoSuchMethodError(), meta_name);
615 java_lang_Throwable::print(exception(), tty);
616 tty->cr();
617 java_lang_Throwable::print_stack_trace(exception, tty);
618 tty->cr();
619 fatal("Failed to find method '%s'", meta_name);
620 }
621 NOT_PRODUCT( aot_methods_found++; )
622 return m;
623 }
624
625 AOTKlassData* AOTCodeHeap::find_klass(const char *name) {
626 return (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), name);
627 }
628
629 AOTKlassData* AOTCodeHeap::find_klass(InstanceKlass* ik) {
630 ResourceMark rm;
631 AOTKlassData* klass_data = find_klass(ik->signature_name());
632 return klass_data;
633 }
634
635 bool AOTCodeHeap::is_dependent_method(Klass* dependee, AOTCompiledMethod* aot) {
636 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee);
637 AOTKlassData* klass_data = find_klass(dependee_ik);
638 if (klass_data == NULL) {
639 return false; // no AOT records for this class - no dependencies
640 }
641 if (!dependee_ik->has_passed_fingerprint_check()) {
642 return false; // different class
643 }
644
645 int methods_offset = klass_data->_dependent_methods_offset;
646 if (methods_offset >= 0) {
647 address methods_cnt_adr = _dependencies + methods_offset;
648 int methods_cnt = *(int*)methods_cnt_adr;
649 int* indexes = (int*)(methods_cnt_adr + 4);
650 for (int i = 0; i < methods_cnt; ++i) {
651 int code_id = indexes[i];
652 if (_code_to_aot[code_id]._aot == aot) {
653 return true; // found dependent method
654 }
655 }
656 }
657 return false;
658 }
659
660 void AOTCodeHeap::sweep_dependent_methods(int* indexes, int methods_cnt) {
661 int marked = 0;
662 for (int i = 0; i < methods_cnt; ++i) {
663 int code_id = indexes[i];
664 // Invalidate aot code.
665 if (Atomic::cmpxchg(invalid, &_code_to_aot[code_id]._state, not_set) != not_set) {
666 if (_code_to_aot[code_id]._state == in_use) {
667 AOTCompiledMethod* aot = _code_to_aot[code_id]._aot;
668 assert(aot != NULL, "aot should be set");
669 if (!aot->is_runtime_stub()) { // Something is wrong - should not invalidate stubs.
670 aot->mark_for_deoptimization(false);
671 marked++;
672 }
673 }
674 }
675 }
676 if (marked > 0) {
677 VM_Deoptimize op;
678 VMThread::execute(&op);
679 }
680 }
681
682 void AOTCodeHeap::sweep_dependent_methods(AOTKlassData* klass_data) {
683 // Make dependent methods non_entrant forever.
684 int methods_offset = klass_data->_dependent_methods_offset;
685 if (methods_offset >= 0) {
686 address methods_cnt_adr = _dependencies + methods_offset;
687 int methods_cnt = *(int*)methods_cnt_adr;
688 int* indexes = (int*)(methods_cnt_adr + 4);
689 sweep_dependent_methods(indexes, methods_cnt);
690 }
691 }
692
693 void AOTCodeHeap::sweep_dependent_methods(InstanceKlass* ik) {
694 AOTKlassData* klass_data = find_klass(ik);
695 vmassert(klass_data != NULL, "dependency data missing");
696 sweep_dependent_methods(klass_data);
697 }
698
699 void AOTCodeHeap::sweep_method(AOTCompiledMethod *aot) {
700 int indexes[] = {aot->method_index()};
701 sweep_dependent_methods(indexes, 1);
702 vmassert(aot->method()->code() != aot && aot->method()->aot_code() == NULL, "method still active");
703 }
704
705
706 bool AOTCodeHeap::load_klass_data(InstanceKlass* ik, Thread* thread) {
707 ResourceMark rm;
708
709 NOT_PRODUCT( klasses_seen++; )
710
711 AOTKlassData* klass_data = find_klass(ik);
712 if (klass_data == NULL) {
713 return false;
714 }
715
716 if (!ik->has_passed_fingerprint_check()) {
717 NOT_PRODUCT( aot_klasses_fp_miss++; )
718 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT,
719 ik->internal_name(), ik->is_shared() ? " (shared)" : "",
720 _lib->name(), p2i(thread));
721 sweep_dependent_methods(klass_data);
722 return false;
723 }
724
725 if (ik->has_been_redefined()) {
726 log_trace(aot, class, load)("class %s%s in %s has been redefined tid=" INTPTR_FORMAT,
727 ik->internal_name(), ik->is_shared() ? " (shared)" : "",
728 _lib->name(), p2i(thread));
729 sweep_dependent_methods(klass_data);
730 return false;
731 }
732
733 assert(klass_data->_class_id < _class_count, "invalid class id");
734 AOTClass* aot_class = &_classes[klass_data->_class_id];
735 if (aot_class->_classloader != NULL && aot_class->_classloader != ik->class_loader_data()) {
736 log_trace(aot, class, load)("class %s in %s already loaded for classloader %p vs %p tid=" INTPTR_FORMAT,
737 ik->internal_name(), _lib->name(), aot_class->_classloader, ik->class_loader_data(), p2i(thread));
738 NOT_PRODUCT( aot_klasses_cl_miss++; )
739 return false;
740 }
741
742 if (_lib->config()->_omitAssertions && JavaAssertions::enabled(ik->name()->as_C_string(), ik->class_loader() == NULL)) {
743 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());
744 sweep_dependent_methods(klass_data);
745 return false;
746 }
747
748 NOT_PRODUCT( aot_klasses_found++; )
749
750 log_trace(aot, class, load)("found %s in %s for classloader %p tid=" INTPTR_FORMAT, ik->internal_name(), _lib->name(), ik->class_loader_data(), p2i(thread));
751
752 aot_class->_classloader = ik->class_loader_data();
753 // Set klass's Resolve (second) got cell.
754 _klasses_got[klass_data->_got_index] = ik;
755 if (ik->is_initialized()) {
756 _klasses_got[klass_data->_got_index - 1] = ik;
757 }
758
759 // Initialize global symbols of the DSO to the corresponding VM symbol values.
760 link_global_lib_symbols();
761
762 int methods_offset = klass_data->_compiled_methods_offset;
763 if (methods_offset >= 0) {
764 address methods_cnt_adr = _methods_offsets + methods_offset;
765 int methods_cnt = *(int*)methods_cnt_adr;
766 // Collect data about compiled methods
767 AOTMethodData* methods_data = NEW_RESOURCE_ARRAY(AOTMethodData, methods_cnt);
768 AOTMethodOffsets* methods_offsets = (AOTMethodOffsets*)(methods_cnt_adr + 4);
769 for (int i = 0; i < methods_cnt; ++i) {
770 AOTMethodOffsets* method_offsets = &methods_offsets[i];
771 int code_id = method_offsets->_code_id;
772 if (_code_to_aot[code_id]._state == invalid) {
773 continue; // skip AOT methods slots which have been invalidated
774 }
775 AOTMethodData* method_data = &methods_data[i];
776 const char* aot_name = _metaspace_names + method_offsets->_name_offset;
777 method_data->_name = aot_name;
778 method_data->_code = _code_space + method_offsets->_code_offset;
779 method_data->_meta = (aot_metadata*)(_method_metadata + method_offsets->_meta_offset);
780 method_data->_metadata_table = (address)_metadata_got + method_offsets->_metadata_got_offset;
781 method_data->_metadata_size = method_offsets->_metadata_got_size;
782 // aot_name format: "<u2_size>Ljava/lang/ThreadGroup;<u2_size>addUnstarted<u2_size>()V"
783 int klass_len = build_u2_from((address)aot_name);
784 const char* method_name = aot_name + 2 + klass_len;
785 Method* m = AOTCodeHeap::find_method(ik, thread, method_name);
786 methodHandle mh(thread, m);
787 if (mh->code() != NULL) { // Does it have already compiled code?
788 continue; // Don't overwrite
789 }
790 publish_aot(mh, method_data, code_id);
791 }
792 }
793 return true;
794 }
795
796 AOTCompiledMethod* AOTCodeHeap::next_in_use_at(int start) const {
797 for (int index = start; index < _method_count; index++) {
798 if (_code_to_aot[index]._state != in_use) {
799 continue; // Skip uninitialized entries.
800 }
801 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
802 return aot;
803 }
804 return NULL;
805 }
806
807 void* AOTCodeHeap::first() const {
808 return next_in_use_at(0);
809 }
810
811 void* AOTCodeHeap::next(void* p) const {
812 AOTCompiledMethod *aot = (AOTCompiledMethod *)p;
813 int next_index = aot->method_index() + 1;
814 assert(next_index <= _method_count, "");
815 if (next_index == _method_count) {
816 return NULL;
817 }
818 return next_in_use_at(next_index);
819 }
820
821 void* AOTCodeHeap::find_start(void* p) const {
822 if (!contains(p)) {
823 return NULL;
824 }
825 size_t offset = pointer_delta(p, low_boundary(), 1);
826 // Use segments table
827 size_t seg_idx = offset / _lib->config()->_codeSegmentSize;
828 if ((int)(_code_segments[seg_idx]) == 0xff) {
829 return NULL;
830 }
831 while (_code_segments[seg_idx] > 0) {
832 seg_idx -= (int)_code_segments[seg_idx];
833 }
834 int code_offset = (int)seg_idx * _lib->config()->_codeSegmentSize;
835 int aot_index = *(int*)(_code_space + code_offset);
836 AOTCompiledMethod* aot = _code_to_aot[aot_index]._aot;
837 assert(aot != NULL, "should find registered aot method");
838 return aot;
839 }
840
841 AOTCompiledMethod* AOTCodeHeap::find_aot(address p) const {
842 assert(contains(p), "should be here");
843 return (AOTCompiledMethod *)find_start(p);
844 }
845
846 CodeBlob* AOTCodeHeap::find_blob_unsafe(void* start) const {
847 return (CodeBlob*)AOTCodeHeap::find_start(start);
848 }
849
850 void AOTCodeHeap::oops_do(OopClosure* f) {
851 for (int i = 0; i < _oop_got_size; i++) {
852 oop* p = &_oop_got[i];
853 if (*p == NULL) continue; // skip non-oops
854 f->do_oop(p);
855 }
856 for (int index = 0; index < _method_count; index++) {
857 if (_code_to_aot[index]._state != in_use) {
858 continue; // Skip uninitialized entries.
859 }
860 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
861 aot->do_oops(f);
862 }
863 }
864
865 // Scan only klasses_got cells which should have only Klass*,
866 // metadata_got cells are scanned only for alive AOT methods
867 // by AOTCompiledMethod::metadata_do().
868 void AOTCodeHeap::got_metadata_do(void f(Metadata*)) {
869 for (int i = 1; i < _klasses_got_size; i++) {
870 Metadata** p = &_klasses_got[i];
871 Metadata* md = *p;
872 if (md == NULL) continue; // skip non-oops
873 if (Metaspace::contains(md)) {
874 f(md);
875 } else {
876 intptr_t meta = (intptr_t)md;
877 fatal("Invalid value in _klasses_got[%d] = " INTPTR_FORMAT, i, meta);
878 }
879 }
880 }
881
882 void AOTCodeHeap::cleanup_inline_caches() {
883 for (int index = 0; index < _method_count; index++) {
884 if (_code_to_aot[index]._state != in_use) {
885 continue; // Skip uninitialized entries.
886 }
887 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
888 aot->cleanup_inline_caches();
889 }
890 }
891
892 #ifdef ASSERT
893 int AOTCodeHeap::verify_icholder_relocations() {
894 int count = 0;
895 for (int index = 0; index < _method_count; index++) {
896 if (_code_to_aot[index]._state != in_use) {
897 continue; // Skip uninitialized entries.
898 }
899 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
900 count += aot->verify_icholder_relocations();
901 }
902 return count;
903 }
904 #endif
905
906 void AOTCodeHeap::flush_evol_dependents_on(InstanceKlass* dependee) {
907 for (int index = 0; index < _method_count; index++) {
908 if (_code_to_aot[index]._state != in_use) {
909 continue; // Skip uninitialized entries.
910 }
911 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
912 aot->flush_evol_dependents_on(dependee);
913 }
914 }
915
916 void AOTCodeHeap::metadata_do(void f(Metadata*)) {
917 for (int index = 0; index < _method_count; index++) {
918 if (_code_to_aot[index]._state != in_use) {
919 continue; // Skip uninitialized entries.
920 }
921 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
922 if (aot->_is_alive()) {
923 aot->metadata_do(f);
924 }
925 }
926 // Scan klasses_got cells.
927 got_metadata_do(f);
928 }
929
930 bool AOTCodeHeap::reconcile_dynamic_klass(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Klass *dyno_klass, const char *descriptor1, const char *descriptor2) {
931 const char * const descriptors[2] = {descriptor1, descriptor2};
932 JavaThread *thread = JavaThread::current();
933 ResourceMark rm(thread);
934
935 AOTKlassData* holder_data = find_klass(holder);
936 vmassert(holder_data != NULL, "klass %s not found", holder->signature_name());
937 vmassert(is_dependent_method(holder, caller), "sanity");
938
939 AOTKlassData* dyno_data = NULL;
940 bool adapter_failed = false;
941 char buf[64];
942 int descriptor_index = 0;
943 // descriptors[0] specific name ("adapter:<method_id>") for matching
944 // descriptors[1] fall-back name ("adapter") for depdencies
945 while (descriptor_index < 2) {
946 const char *descriptor = descriptors[descriptor_index];
947 if (descriptor == NULL) {
948 break;
949 }
950 jio_snprintf(buf, sizeof buf, "%s<%d:%d>", descriptor, holder_data->_class_id, index);
951 dyno_data = find_klass(buf);
952 if (dyno_data != NULL) {
953 break;
954 }
955 // If match failed then try fall-back for dependencies
956 ++descriptor_index;
957 adapter_failed = true;
958 }
959
960 if (dyno_data == NULL && dyno_klass == NULL) {
961 // all is well, no (appendix) at compile-time, and still none
962 return true;
963 }
964
965 if (dyno_data == NULL) {
966 // no (appendix) at build-time, but now there is
967 sweep_dependent_methods(holder_data);
968 return false;
969 }
970
971 if (adapter_failed) {
972 // adapter method mismatch
973 sweep_dependent_methods(holder_data);
974 sweep_dependent_methods(dyno_data);
975 return false;
976 }
977
978 if (dyno_klass == NULL) {
979 // (appendix) at build-time, none now
980 sweep_dependent_methods(holder_data);
981 sweep_dependent_methods(dyno_data);
982 return false;
983 }
984
985 // TODO: support array appendix object
986 if (!dyno_klass->is_instance_klass()) {
987 sweep_dependent_methods(holder_data);
988 sweep_dependent_methods(dyno_data);
989 return false;
990 }
991
992 InstanceKlass* dyno = InstanceKlass::cast(dyno_klass);
993
994 if (!dyno->is_anonymous()) {
995 if (_klasses_got[dyno_data->_got_index] != dyno) {
996 // compile-time class different from runtime class, fail and deoptimize
997 sweep_dependent_methods(holder_data);
998 sweep_dependent_methods(dyno_data);
999 return false;
1000 }
1001
1002 if (dyno->is_initialized()) {
1003 _klasses_got[dyno_data->_got_index - 1] = dyno;
1004 }
1005 return true;
1006 }
1007
1008 // TODO: support anonymous supers
1009 if (!dyno->supers_have_passed_fingerprint_checks() || dyno->get_stored_fingerprint() != dyno_data->_fingerprint) {
1010 NOT_PRODUCT( aot_klasses_fp_miss++; )
1011 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT,
1012 dyno->internal_name(), dyno->is_shared() ? " (shared)" : "",
1013 _lib->name(), p2i(thread));
1014 sweep_dependent_methods(holder_data);
1015 sweep_dependent_methods(dyno_data);
1016 return false;
1017 }
1018
1019 _klasses_got[dyno_data->_got_index] = dyno;
1020 if (dyno->is_initialized()) {
1021 _klasses_got[dyno_data->_got_index - 1] = dyno;
1022 }
1023
1024 // TODO: hook up any AOT code
1025 // load_klass_data(dyno_data, thread);
1026 return true;
1027 }
1028
1029 bool AOTCodeHeap::reconcile_dynamic_method(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Method *adapter_method) {
1030 InstanceKlass *adapter_klass = adapter_method->method_holder();
1031 char buf[64];
1032 jio_snprintf(buf, sizeof buf, "adapter:%d", adapter_method->method_idnum());
1033 if (!reconcile_dynamic_klass(caller, holder, index, adapter_klass, buf, "adapter")) {
1034 return false;
1035 }
1036 return true;
1037 }
1038
1039 bool AOTCodeHeap::reconcile_dynamic_invoke(AOTCompiledMethod* caller, InstanceKlass* holder, int index, Method* adapter_method, Klass *appendix_klass) {
1040 if (!reconcile_dynamic_klass(caller, holder, index, appendix_klass, "appendix")) {
1041 return false;
1042 }
1043
1044 if (!reconcile_dynamic_method(caller, holder, index, adapter_method)) {
1045 return false;
1046 }
1047
1048 return true;
1049 }