1 /*
2 * Copyright (c) 2016, 2017, 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 "classfile/javaAssertions.hpp"
29 #include "gc/g1/heapRegion.hpp"
30 #include "gc/shared/gcLocker.hpp"
31 #include "interpreter/abstractInterpreter.hpp"
32 #include "jvmci/compilerRuntime.hpp"
33 #include "jvmci/jvmciRuntime.hpp"
34 #include "oops/method.hpp"
35 #include "runtime/os.hpp"
36 #include "runtime/sharedRuntime.hpp"
37 #include "runtime/vm_operations.hpp"
38
39 bool AOTLib::_narrow_oop_shift_initialized = false;
40 int AOTLib::_narrow_oop_shift = 0;
41 int AOTLib::_narrow_klass_shift = 0;
42
43 address AOTLib::load_symbol(const char *name) {
44 address symbol = (address) os::dll_lookup(_dl_handle, name);
45 if (symbol == NULL) {
46 tty->print_cr("Shared file %s error: missing %s", _name, name);
47 vm_exit(1);
48 }
49 return symbol;
50 }
51
52 Klass* AOTCodeHeap::get_klass_from_got(const char* klass_name, int klass_len, const Method* method) {
53 AOTKlassData* klass_data = (AOTKlassData*)_lib->load_symbol(klass_name);
54 Klass* k = (Klass*)_metaspace_got[klass_data->_got_index];
55 if (k == NULL) {
56 Thread* thread = Thread::current();
57 k = lookup_klass(klass_name, klass_len, method, thread);
58 // Note, exceptions are cleared.
59 if (k == NULL) {
60 fatal("Shared file %s error: klass %s should be resolved already", _lib->name(), klass_name);
61 vm_exit(1);
62 }
63 _metaspace_got[klass_data->_got_index] = k;
64 }
65 return k;
66 }
67
68 Klass* AOTCodeHeap::lookup_klass(const char* name, int len, const Method* method, Thread* thread) {
69 ResourceMark rm(thread);
70 assert(method != NULL, "incorrect call parameter");
71 methodHandle caller(thread, (Method*)method);
72
73 // Use class loader of aot method.
74 Handle loader(thread, caller->method_holder()->class_loader());
75 Handle protection_domain(thread, caller->method_holder()->protection_domain());
76
77 // Ignore wrapping L and ;
78 if (name[0] == 'L') {
79 assert(len > 2, "small name %s", name);
80 name++;
81 len -= 2;
82 }
83 TempNewSymbol sym = SymbolTable::probe(name, len);
84 if (sym == NULL) {
85 log_debug(aot, class, resolve)("Probe failed for AOT class %s", name);
86 return NULL;
87 }
88 Klass* k = SystemDictionary::find_instance_or_array_klass(sym, loader, protection_domain, thread);
89 assert(!thread->has_pending_exception(), "should not throw");
90
91 if (k != NULL) {
92 log_info(aot, class, resolve)("%s %s (lookup)", caller->method_holder()->external_name(), k->external_name());
93 }
94 return k;
95 }
96
97 void AOTLib::handle_config_error(const char* format, ...) {
98 if (PrintAOT) {
99 va_list ap;
100 va_start(ap, format);
101 tty->vprint_cr(format, ap);
102 va_end(ap);
103 }
104 if (UseAOTStrictLoading) {
105 vm_exit(1);
106 }
107 _valid = false;
108 }
109
110 void AOTLib::verify_flag(bool aot_flag, bool flag, const char* name) {
111 if (_valid && aot_flag != flag) {
112 handle_config_error("Shared file %s error: %s has different value '%s' from current '%s'", _name, name , (aot_flag ? "true" : "false"), (flag ? "true" : "false"));
113 }
114 }
115
116 void AOTLib::verify_flag(int aot_flag, int flag, const char* name) {
117 if (_valid && aot_flag != flag) {
118 handle_config_error("Shared file %s error: %s has different value '%d' from current '%d'", _name, name , aot_flag, flag);
119 }
120 }
121
122 void AOTLib::verify_config() {
123 GrowableArray<AOTLib*>* libraries = AOTLoader::libraries();
124 for (GrowableArrayIterator<AOTLib*> lib = libraries->begin(); lib != libraries->end(); ++lib) {
125 if ((*lib)->_config == _config) {
126 handle_config_error("AOT library %s already loaded.", (*lib)->_name);
127 return;
128 }
129 }
130
131 if (_header->_version != AOTHeader::AOT_SHARED_VERSION) {
132 handle_config_error("Invalid version of the shared file %s. Expected %d but was %d", _name, _header->_version, AOTHeader::AOT_SHARED_VERSION);
133 return;
134 }
135
136 const char* aot_jvm_version = (const char*)_header + _header->_jvm_version_offset + 2;
137 if (strcmp(aot_jvm_version, VM_Version::jre_release_version()) != 0) {
138 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());
139 return;
140 }
141
142 // Debug VM has different layout of runtime and metadata structures
143 #ifdef ASSERT
144 verify_flag(_config->_debug_VM, true, "Debug VM version");
145 #else
146 verify_flag(!(_config->_debug_VM), true, "Product VM version");
147 #endif
148 // Check configuration size
149 verify_flag(_config->_config_size, AOTConfiguration::CONFIG_SIZE, "AOT configuration size");
150
151 // Check flags
152 verify_flag(_config->_useCompressedOops, UseCompressedOops, "UseCompressedOops");
153 verify_flag(_config->_useCompressedClassPointers, UseCompressedClassPointers, "UseCompressedClassPointers");
154 verify_flag(_config->_useG1GC, UseG1GC, "UseG1GC");
155 verify_flag(_config->_useTLAB, UseTLAB, "UseTLAB");
156 verify_flag(_config->_useBiasedLocking, UseBiasedLocking, "UseBiasedLocking");
157 verify_flag(_config->_objectAlignment, ObjectAlignmentInBytes, "ObjectAlignmentInBytes");
158 verify_flag(_config->_contendedPaddingWidth, ContendedPaddingWidth, "ContendedPaddingWidth");
159 verify_flag(_config->_fieldsAllocationStyle, FieldsAllocationStyle, "FieldsAllocationStyle");
160 verify_flag(_config->_compactFields, CompactFields, "CompactFields");
161 verify_flag(_config->_enableContended, EnableContended, "EnableContended");
162 verify_flag(_config->_restrictContended, RestrictContended, "RestrictContended");
163
164 if (!TieredCompilation && _config->_tieredAOT) {
165 handle_config_error("Shared file %s error: Expected to run with tiered compilation on", _name);
166 }
167
168 // Shifts are static values which initialized by 0 until java heap initialization.
169 // AOT libs are loaded before heap initialized so shift values are not set.
170 // It is okay since ObjectAlignmentInBytes flag which defines shifts value is set before AOT libs are loaded.
171 // Set shifts value based on first AOT library config.
172 if (UseCompressedOops && _valid) {
173 if (!_narrow_oop_shift_initialized) {
174 _narrow_oop_shift = _config->_narrowOopShift;
175 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set
176 _narrow_klass_shift = _config->_narrowKlassShift;
177 }
178 _narrow_oop_shift_initialized = true;
179 } else {
180 verify_flag(_config->_narrowOopShift, _narrow_oop_shift, "aot_config->_narrowOopShift");
181 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set
182 verify_flag(_config->_narrowKlassShift, _narrow_klass_shift, "aot_config->_narrowKlassShift");
183 }
184 }
185 }
186 }
187
188 AOTLib::~AOTLib() {
189 free((void*) _name);
190 }
191
192 AOTCodeHeap::~AOTCodeHeap() {
193 if (_classes != NULL) {
194 FREE_C_HEAP_ARRAY(AOTClass, _classes);
195 }
196 if (_code_to_aot != NULL) {
197 FREE_C_HEAP_ARRAY(CodeToAMethod, _code_to_aot);
198 }
199 }
200
201 AOTLib::AOTLib(void* handle, const char* name, int dso_id) : _valid(true), _dl_handle(handle), _dso_id(dso_id) {
202 _name = (const char*) strdup(name);
203
204 // Verify that VM runs with the same parameters as AOT tool.
205 _config = (AOTConfiguration*) load_symbol("JVM.config");
206 _header = (AOTHeader*) load_symbol("JVM.header");
207
208 verify_config();
209
210 if (!_valid && PrintAOT) {
211 tty->print("%7d ", (int) tty->time_stamp().milliseconds());
212 tty->print_cr("%4d skipped %s aot library", _dso_id, _name);
213 }
214 }
215
216 AOTCodeHeap::AOTCodeHeap(AOTLib* lib) :
217 CodeHeap("CodeHeap 'AOT'", CodeBlobType::AOT), _lib(lib), _classes(NULL), _code_to_aot(NULL) {
218 assert(_lib->is_valid(), "invalid library");
219
220 _lib_symbols_initialized = false;
221 _aot_id = 0;
222
223 _class_count = _lib->header()->_class_count;
224 _method_count = _lib->header()->_method_count;
225
226 // Collect metaspace info: names -> address in .got section
227 _metaspace_names = (const char*) _lib->load_symbol("JVM.meta.names");
228 _method_metadata = (address) _lib->load_symbol("JVM.meth.metadata");
229 _methods_offsets = (address) _lib->load_symbol("JVM.methods.offsets");
230 _klasses_offsets = (address) _lib->load_symbol("JVM.kls.offsets");
231 _dependencies = (address) _lib->load_symbol("JVM.kls.dependencies");
232 _code_space = (address) _lib->load_symbol("JVM.text");
233
234 // First cell is number of elements.
235 _metaspace_got = (Metadata**) _lib->load_symbol("JVM.meta.got");
236 _metaspace_got_size = _lib->header()->_metaspace_got_size;
237
238 _metadata_got = (Metadata**) _lib->load_symbol("JVM.metadata.got");
239 _metadata_got_size = _lib->header()->_metadata_got_size;
240
241 _oop_got = (oop*) _lib->load_symbol("JVM.oop.got");
242 _oop_got_size = _lib->header()->_oop_got_size;
243
244 // Collect stubs info
245 _stubs_offsets = (int*) _lib->load_symbol("JVM.stubs.offsets");
246
247 // code segments table
248 _code_segments = (address) _lib->load_symbol("JVM.code.segments");
249
250 // method state
251 _method_state = (jlong*) _lib->load_symbol("JVM.meth.state");
252
253 // Create a table for mapping classes
254 _classes = NEW_C_HEAP_ARRAY(AOTClass, _class_count, mtCode);
255 memset(_classes, 0, _class_count * sizeof(AOTClass));
256
257 // Create table for searching AOTCompiledMethod based on pc.
258 _code_to_aot = NEW_C_HEAP_ARRAY(CodeToAMethod, _method_count, mtCode);
259 memset(_code_to_aot, 0, _method_count * sizeof(CodeToAMethod));
260
261 _low_boundary = _code_space;
262 _memory.set_low_boundary((char *)_code_space);
263 _memory.set_high_boundary((char *)_code_space);
264 _memory.set_low((char *)_code_space);
265 _memory.set_high((char *)_code_space);
266
267 _segmap.set_low_boundary((char *)_code_segments);
268 _segmap.set_low((char *)_code_segments);
269
270 _log2_segment_size = exact_log2(_lib->config()->_codeSegmentSize);
271
272 // Register aot stubs
273 register_stubs();
274
275 if (PrintAOT || (PrintCompilation && PrintAOT)) {
276 tty->print("%7d ", (int) tty->time_stamp().milliseconds());
277 tty->print_cr("%4d loaded %s aot library", _lib->id(), _lib->name());
278 }
279 }
280
281 void AOTCodeHeap::publish_aot(const methodHandle& mh, AOTMethodData* method_data, int code_id) {
282 // The method may be explicitly excluded by the user.
283 // Or Interpreter uses an intrinsic for this method.
284 if (CompilerOracle::should_exclude(mh) || !AbstractInterpreter::can_be_compiled(mh)) {
285 return;
286 }
287
288 address code = method_data->_code;
289 const char* name = method_data->_name;
290 aot_metadata* meta = method_data->_meta;
291
292 if (meta->scopes_pcs_begin() == meta->scopes_pcs_end()) {
293 // When the AOT compiler compiles something big we fail to generate metadata
294 // in CodeInstaller::gather_metadata. In that case the scopes_pcs_begin == scopes_pcs_end.
295 // In all successful cases we always have 2 entries of scope pcs.
296 log_info(aot, class, resolve)("Failed to load %s (no metadata available)", mh->name_and_sig_as_C_string());
297 _code_to_aot[code_id]._state = invalid;
298 return;
299 }
300
301 jlong* state_adr = &_method_state[code_id];
302 address metadata_table = method_data->_metadata_table;
303 int metadata_size = method_data->_metadata_size;
304 assert(code_id < _method_count, "sanity");
305 _aot_id++;
306
307 #ifdef ASSERT
308 if (_aot_id > CIStop || _aot_id < CIStart) {
309 // Skip compilation
310 return;
311 }
312 #endif
313 // Check one more time.
314 if (_code_to_aot[code_id]._state == invalid) {
315 return;
316 }
317 AOTCompiledMethod *aot = new AOTCompiledMethod(code, mh(), meta, metadata_table, metadata_size, state_adr, this, name, code_id, _aot_id);
318 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized");
319 _code_to_aot[code_id]._aot = aot; // Should set this first
320 if (Atomic::cmpxchg(in_use, (jint*)&_code_to_aot[code_id]._state, not_set) != not_set) {
321 _code_to_aot[code_id]._aot = NULL; // Clean
322 } else { // success
323 // Publish method
324 #ifdef TIERED
325 mh->set_aot_code(aot);
326 #endif
327 Method::set_code(mh, aot);
328 if (PrintAOT || (PrintCompilation && PrintAOT)) {
329 aot->print_on(tty, NULL);
330 }
331 // Publish oop only after we are visible to CompiledMethodIterator
332 aot->set_oop(mh()->method_holder()->klass_holder());
333 }
334 }
335
336 void AOTCodeHeap::link_primitive_array_klasses() {
337 ResourceMark rm;
338 for (int i = T_BOOLEAN; i <= T_CONFLICT; i++) {
339 BasicType t = (BasicType)i;
340 if (is_java_primitive(t)) {
341 const Klass* arr_klass = Universe::typeArrayKlassObj(t);
342 AOTKlassData* klass_data = (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), arr_klass->signature_name());
343 if (klass_data != NULL) {
344 // Set both GOT cells, resolved and initialized klass pointers.
345 // _got_index points to second cell - resolved klass pointer.
346 _metaspace_got[klass_data->_got_index-1] = (Metadata*)arr_klass; // Initialized
347 _metaspace_got[klass_data->_got_index ] = (Metadata*)arr_klass; // Resolved
348 if (PrintAOT) {
349 tty->print_cr("[Found %s in %s]", arr_klass->internal_name(), _lib->name());
350 }
351 }
352 }
353 }
354 }
355
356 void AOTCodeHeap::register_stubs() {
357 int stubs_count = _stubs_offsets[0]; // contains number
358 _stubs_offsets++;
359 AOTMethodOffsets* stub_offsets = (AOTMethodOffsets*)_stubs_offsets;
360 for (int i = 0; i < stubs_count; ++i) {
361 const char* stub_name = _metaspace_names + stub_offsets[i]._name_offset;
362 address entry = _code_space + stub_offsets[i]._code_offset;
363 aot_metadata* meta = (aot_metadata *) (_method_metadata + stub_offsets[i]._meta_offset);
364 address metadata_table = (address)_metadata_got + stub_offsets[i]._metadata_got_offset;
365 int metadata_size = stub_offsets[i]._metadata_got_size;
366 int code_id = stub_offsets[i]._code_id;
367 assert(code_id < _method_count, "sanity");
368 jlong* state_adr = &_method_state[code_id];
369 int len = build_u2_from((address)stub_name);
370 stub_name += 2;
371 char* full_name = NEW_C_HEAP_ARRAY(char, len+5, mtCode);
372 if (full_name == NULL) { // No memory?
373 break;
374 }
375 memcpy(full_name, "AOT ", 4);
376 memcpy(full_name+4, stub_name, len);
377 full_name[len+4] = 0;
378 guarantee(_code_to_aot[code_id]._state != invalid, "stub %s can't be invalidated", full_name);
379 AOTCompiledMethod* aot = new AOTCompiledMethod(entry, NULL, meta, metadata_table, metadata_size, state_adr, this, full_name, code_id, i);
380 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized");
381 _code_to_aot[code_id]._aot = aot;
382 if (Atomic::cmpxchg(in_use, (jint*)&_code_to_aot[code_id]._state, not_set) != not_set) {
383 fatal("stab '%s' code state is %d", full_name, _code_to_aot[code_id]._state);
384 }
385 // Adjust code buffer boundaries only for stubs because they are last in the buffer.
386 adjust_boundaries(aot);
387 if (PrintAOT && Verbose) {
388 aot->print_on(tty, NULL);
389 }
390 }
391 }
392
393 #define SET_AOT_GLOBAL_SYMBOL_VALUE(AOTSYMNAME, AOTSYMTYPE, VMSYMVAL) \
394 { \
395 AOTSYMTYPE * adr = (AOTSYMTYPE *) os::dll_lookup(_lib->dl_handle(), AOTSYMNAME); \
396 /* Check for a lookup error */ \
397 guarantee(adr != NULL, "AOT Symbol not found %s", AOTSYMNAME); \
398 *adr = (AOTSYMTYPE) VMSYMVAL; \
399 }
400
401 void AOTCodeHeap::link_graal_runtime_symbols() {
402 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorenter", address, JVMCIRuntime::monitorenter);
403 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorexit", address, JVMCIRuntime::monitorexit);
404 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_object", address, JVMCIRuntime::log_object);
405 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_printf", address, JVMCIRuntime::log_printf);
406 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_primitive", address, JVMCIRuntime::log_primitive);
407 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance", address, JVMCIRuntime::new_instance);
408 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array", address, JVMCIRuntime::new_array);
409 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array", address, JVMCIRuntime::new_multi_array);
410 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array", address, JVMCIRuntime::dynamic_new_array);
411 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_validate_object", address, JVMCIRuntime::validate_object);
412 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_pre", address, JVMCIRuntime::write_barrier_pre);
413 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_identity_hash_code", address, JVMCIRuntime::identity_hash_code);
414 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_post", address, JVMCIRuntime::write_barrier_post);
415 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance", address, JVMCIRuntime::dynamic_new_instance);
416 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_thread_is_interrupted", address, JVMCIRuntime::thread_is_interrupted);
417 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_exception_handler_for_pc", address, JVMCIRuntime::exception_handler_for_pc);
418 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_test_deoptimize_call_int", address, JVMCIRuntime::test_deoptimize_call_int);
419 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_and_post_jvmti_exception", address, JVMCIRuntime::throw_and_post_jvmti_exception);
420 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_klass_external_name_exception", address, JVMCIRuntime::throw_klass_external_name_exception);
421 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_class_cast_exception", address, JVMCIRuntime::throw_class_cast_exception);
422 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_message", address, JVMCIRuntime::vm_message);
423 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_error", address, JVMCIRuntime::vm_error);
424 }
425
426 void AOTCodeHeap::link_shared_runtime_symbols() {
427 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_static_entry", address, SharedRuntime::get_resolve_static_call_stub());
428 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_virtual_entry", address, SharedRuntime::get_resolve_virtual_call_stub());
429 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_opt_virtual_entry", address, SharedRuntime::get_resolve_opt_virtual_call_stub());
430 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_unpack", address, SharedRuntime::deopt_blob()->unpack());
431 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_uncommon_trap", address, SharedRuntime::deopt_blob()->uncommon_trap());
432 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_ic_miss_stub", address, SharedRuntime::get_ic_miss_stub());
433 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_handle_wrong_method_stub", address, SharedRuntime::get_handle_wrong_method_stub());
434 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_exception_handler_for_return_address", address, SharedRuntime::exception_handler_for_return_address);
435 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_register_finalizer", address, SharedRuntime::register_finalizer);
436 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_OSR_migration_end", address, SharedRuntime::OSR_migration_end);
437 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_string_by_symbol", address, CompilerRuntime::resolve_string_by_symbol);
438 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_klass_by_symbol", address, CompilerRuntime::resolve_klass_by_symbol);
439 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_method_by_symbol_and_load_counters", address, CompilerRuntime::resolve_method_by_symbol_and_load_counters);
440 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_initialize_klass_by_symbol", address, CompilerRuntime::initialize_klass_by_symbol);
441 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_invocation_event", address, CompilerRuntime::invocation_event);
442 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_backedge_event", address, CompilerRuntime::backedge_event);
443
444 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dpow", address, SharedRuntime::dpow);
445 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dexp", address, SharedRuntime::dexp);
446 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dcos", address, SharedRuntime::dcos);
447 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dsin", address, SharedRuntime::dsin);
448 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dtan", address, SharedRuntime::dtan);
449 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog", address, SharedRuntime::dlog);
450 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog10", address, SharedRuntime::dlog10);
451 }
452
453 void AOTCodeHeap::link_stub_routines_symbols() {
454 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_arraycopy", address, StubRoutines::_jbyte_arraycopy);
455 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_arraycopy", address, StubRoutines::_jshort_arraycopy);
456 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_arraycopy", address, StubRoutines::_jint_arraycopy);
457 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_arraycopy", address, StubRoutines::_jlong_arraycopy);
458 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy", address, StubRoutines::_oop_arraycopy);
459 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy_uninit", address, StubRoutines::_oop_arraycopy_uninit);
460
461 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_disjoint_arraycopy", address, StubRoutines::_jbyte_disjoint_arraycopy);
462 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_disjoint_arraycopy", address, StubRoutines::_jshort_disjoint_arraycopy);
463 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_disjoint_arraycopy", address, StubRoutines::_jint_disjoint_arraycopy);
464 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_disjoint_arraycopy", address, StubRoutines::_jlong_disjoint_arraycopy);
465 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy", address, StubRoutines::_oop_disjoint_arraycopy);
466 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy_uninit", address, StubRoutines::_oop_disjoint_arraycopy_uninit);
467
468 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_arraycopy", address, StubRoutines::_arrayof_jbyte_arraycopy);
469 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_arraycopy", address, StubRoutines::_arrayof_jshort_arraycopy);
470 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_arraycopy", address, StubRoutines::_arrayof_jint_arraycopy);
471 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_arraycopy", address, StubRoutines::_arrayof_jlong_arraycopy);
472 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy", address, StubRoutines::_arrayof_oop_arraycopy);
473 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy_uninit", address, StubRoutines::_arrayof_oop_arraycopy_uninit);
474
475 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_disjoint_arraycopy", address, StubRoutines::_arrayof_jbyte_disjoint_arraycopy);
476 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_disjoint_arraycopy", address, StubRoutines::_arrayof_jshort_disjoint_arraycopy);
477 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_disjoint_arraycopy", address, StubRoutines::_arrayof_jint_disjoint_arraycopy);
478 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_disjoint_arraycopy", address, StubRoutines::_arrayof_jlong_disjoint_arraycopy);
479 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy", address, StubRoutines::_arrayof_oop_disjoint_arraycopy);
480 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy_uninit", address, StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit);
481
482 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_checkcast_arraycopy", address, StubRoutines::_checkcast_arraycopy);
483
484 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_encryptBlock", address, StubRoutines::_aescrypt_encryptBlock);
485 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_decryptBlock", address, StubRoutines::_aescrypt_decryptBlock);
486 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_encryptAESCrypt", address, StubRoutines::_cipherBlockChaining_encryptAESCrypt);
487 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_decryptAESCrypt", address, StubRoutines::_cipherBlockChaining_decryptAESCrypt);
488 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_update_bytes_crc32", address, StubRoutines::_updateBytesCRC32);
489 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc_table_adr", address, StubRoutines::_crc_table_adr);
490
491
492 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompress", address, StubRoutines::_sha1_implCompress);
493 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompressMB", address, StubRoutines::_sha1_implCompressMB);
494 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompress", address, StubRoutines::_sha256_implCompress);
495 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompressMB", address, StubRoutines::_sha256_implCompressMB);
496 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompress", address, StubRoutines::_sha512_implCompress);
497 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompressMB", address, StubRoutines::_sha512_implCompressMB);
498 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_multiplyToLen", address, StubRoutines::_multiplyToLen);
499
500 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_counterMode_AESCrypt", address, StubRoutines::_counterMode_AESCrypt);
501 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_ghash_processBlocks", address, StubRoutines::_ghash_processBlocks);
502 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc32c_table_addr", address, StubRoutines::_crc32c_table_addr);
503 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesCRC32C", address, StubRoutines::_updateBytesCRC32C);
504 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesAdler32", address, StubRoutines::_updateBytesAdler32);
505 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_squareToLen", address, StubRoutines::_squareToLen);
506 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_mulAdd", address, StubRoutines::_mulAdd);
507 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomeryMultiply", address, StubRoutines::_montgomeryMultiply);
508 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomerySquare", address, StubRoutines::_montgomerySquare);
509 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_vectorizedMismatch", address, StubRoutines::_vectorizedMismatch);
510
511 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_throw_delayed_StackOverflowError_entry", address, StubRoutines::_throw_delayed_StackOverflowError_entry);
512
513 }
514
515 void AOTCodeHeap::link_os_symbols() {
516 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeMillis", address, os::javaTimeMillis);
517 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeNanos", address, os::javaTimeNanos);
518 }
519
520 /*
521 * Link any global symbols in precompiled DSO with dlopen() _dl_handle
522 * dso_handle.
523 */
524
525 void AOTCodeHeap::link_global_lib_symbols() {
526 if (!_lib_symbols_initialized) {
527 _lib_symbols_initialized = true;
528
529 CollectedHeap* heap = Universe::heap();
530 CardTableModRefBS* ct = (CardTableModRefBS*)(heap->barrier_set());
531 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_card_table_address", address, ct->byte_map_base);
532 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_top_address", address, (heap->supports_inline_contig_alloc() ? heap->top_addr() : NULL));
533 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_end_address", address, (heap->supports_inline_contig_alloc() ? heap->end_addr() : NULL));
534 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_polling_page", address, os::get_polling_page());
535 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_klass_base_address", address, Universe::narrow_klass_base());
536 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_oop_base_address", address, Universe::narrow_oop_base());
537 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_log_of_heap_region_grain_bytes", int, HeapRegion::LogOfHRGrainBytes);
538 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_inline_contiguous_allocation_supported", bool, heap->supports_inline_contig_alloc());
539 link_shared_runtime_symbols();
540 link_stub_routines_symbols();
541 link_os_symbols();
542 link_graal_runtime_symbols();
543
544 // Link primitive array klasses.
545 link_primitive_array_klasses();
546 }
547 }
548
549 #ifndef PRODUCT
550 int AOTCodeHeap::klasses_seen = 0;
551 int AOTCodeHeap::aot_klasses_found = 0;
552 int AOTCodeHeap::aot_klasses_fp_miss = 0;
553 int AOTCodeHeap::aot_klasses_cl_miss = 0;
554 int AOTCodeHeap::aot_methods_found = 0;
555
556 void AOTCodeHeap::print_statistics() {
557 tty->print_cr("Classes seen: %d AOT classes found: %d AOT methods found: %d", klasses_seen, aot_klasses_found, aot_methods_found);
558 tty->print_cr("AOT fingerprint mismatches: %d AOT class loader mismatches: %d", aot_klasses_fp_miss, aot_klasses_cl_miss);
559 }
560 #endif
561
562 Method* AOTCodeHeap::find_method(Klass* klass, Thread* thread, const char* method_name) {
563 int method_name_len = build_u2_from((address)method_name);
564 method_name += 2;
565 const char* signature_name = method_name + method_name_len;
566 int signature_name_len = build_u2_from((address)signature_name);
567 signature_name += 2;
568 // The class should have been loaded so the method and signature should already be
569 // in the symbol table. If they're not there, the method doesn't exist.
570 TempNewSymbol name = SymbolTable::probe(method_name, method_name_len);
571 TempNewSymbol signature = SymbolTable::probe(signature_name, signature_name_len);
572
573 Method* m;
574 if (name == NULL || signature == NULL) {
575 m = NULL;
576 } else if (name == vmSymbols::object_initializer_name() ||
577 name == vmSymbols::class_initializer_name()) {
578 // Never search superclasses for constructors
579 if (klass->is_instance_klass()) {
580 m = InstanceKlass::cast(klass)->find_method(name, signature);
581 } else {
582 m = NULL;
583 }
584 } else {
585 m = klass->lookup_method(name, signature);
586 if (m == NULL && klass->is_instance_klass()) {
587 m = InstanceKlass::cast(klass)->lookup_method_in_ordered_interfaces(name, signature);
588 }
589 }
590 if (m == NULL) {
591 // Fatal error because we assume classes and methods should not be changed since aot compilation.
592 const char* klass_name = klass->external_name();
593 int klass_len = (int)strlen(klass_name);
594 char* meta_name = NEW_RESOURCE_ARRAY(char, klass_len + 1 + method_name_len + signature_name_len + 1);
595 memcpy(meta_name, klass_name, klass_len);
596 meta_name[klass_len] = '.';
597 memcpy(&meta_name[klass_len + 1], method_name, method_name_len);
598 memcpy(&meta_name[klass_len + 1 + method_name_len], signature_name, signature_name_len);
599 meta_name[klass_len + 1 + method_name_len + signature_name_len] = '\0';
600 Handle exception = Exceptions::new_exception(thread, vmSymbols::java_lang_NoSuchMethodError(), meta_name);
601 java_lang_Throwable::print(exception(), tty);
602 tty->cr();
603 java_lang_Throwable::print_stack_trace(exception, tty);
604 tty->cr();
605 fatal("Failed to find method '%s'", meta_name);
606 }
607 NOT_PRODUCT( aot_methods_found++; )
608 return m;
609 }
610
611 AOTKlassData* AOTCodeHeap::find_klass(InstanceKlass* ik) {
612 ResourceMark rm;
613 AOTKlassData* klass_data = (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), ik->signature_name());
614 return klass_data;
615 }
616
617 bool AOTCodeHeap::is_dependent_method(Klass* dependee, AOTCompiledMethod* aot) {
618 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee);
619 AOTKlassData* klass_data = find_klass(dependee_ik);
620 if (klass_data == NULL) {
621 return false; // no AOT records for this class - no dependencies
622 }
623 if (!dependee_ik->has_passed_fingerprint_check()) {
624 return false; // different class
625 }
626
627 int methods_offset = klass_data->_dependent_methods_offset;
628 if (methods_offset >= 0) {
629 address methods_cnt_adr = _dependencies + methods_offset;
630 int methods_cnt = *(int*)methods_cnt_adr;
631 int* indexes = (int*)(methods_cnt_adr + 4);
632 for (int i = 0; i < methods_cnt; ++i) {
633 int code_id = indexes[i];
634 if (_code_to_aot[code_id]._aot == aot) {
635 return true; // found dependent method
636 }
637 }
638 }
639 return false;
640 }
641
642 void AOTCodeHeap::sweep_dependent_methods(AOTKlassData* klass_data) {
643 // Make dependent methods non_entrant forever.
644 int methods_offset = klass_data->_dependent_methods_offset;
645 if (methods_offset >= 0) {
646 int marked = 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 // Invalidate aot code.
653 if (Atomic::cmpxchg(invalid, (jint*)&_code_to_aot[code_id]._state, not_set) != not_set) {
654 if (_code_to_aot[code_id]._state == in_use) {
655 AOTCompiledMethod* aot = _code_to_aot[code_id]._aot;
656 assert(aot != NULL, "aot should be set");
657 if (!aot->is_runtime_stub()) { // Something is wrong - should not invalidate stubs.
658 aot->mark_for_deoptimization(false);
659 marked++;
660 }
661 }
662 }
663 }
664 if (marked > 0) {
665 VM_Deoptimize op;
666 VMThread::execute(&op);
667 }
668 }
669 }
670
671 bool AOTCodeHeap::load_klass_data(InstanceKlass* ik, Thread* thread) {
672 ResourceMark rm;
673
674 NOT_PRODUCT( klasses_seen++; )
675
676 AOTKlassData* klass_data = find_klass(ik);
677 if (klass_data == NULL) {
678 return false;
679 }
680
681 if (!ik->has_passed_fingerprint_check()) {
682 NOT_PRODUCT( aot_klasses_fp_miss++; )
683 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT,
684 ik->internal_name(), ik->is_shared() ? " (shared)" : "",
685 _lib->name(), p2i(thread));
686 sweep_dependent_methods(klass_data);
687 return false;
688 }
689
690 if (ik->has_been_redefined()) {
691 log_trace(aot, class, load)("class %s%s in %s has been redefined tid=" INTPTR_FORMAT,
692 ik->internal_name(), ik->is_shared() ? " (shared)" : "",
693 _lib->name(), p2i(thread));
694 sweep_dependent_methods(klass_data);
695 return false;
696 }
697
698 assert(klass_data->_class_id < _class_count, "invalid class id");
699 AOTClass* aot_class = &_classes[klass_data->_class_id];
700 if (aot_class->_classloader != NULL && aot_class->_classloader != ik->class_loader_data()) {
701 log_trace(aot, class, load)("class %s in %s already loaded for classloader %p vs %p tid=" INTPTR_FORMAT,
702 ik->internal_name(), _lib->name(), aot_class->_classloader, ik->class_loader_data(), p2i(thread));
703 NOT_PRODUCT( aot_klasses_cl_miss++; )
704 return false;
705 }
706
707 if (_lib->config()->_omitAssertions && JavaAssertions::enabled(ik->name()->as_C_string(), ik->class_loader() == NULL)) {
708 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());
709 sweep_dependent_methods(klass_data);
710 return false;
711 }
712
713 NOT_PRODUCT( aot_klasses_found++; )
714
715 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));
716
717 aot_class->_classloader = ik->class_loader_data();
718 // Set klass's Resolve (second) got cell.
719 _metaspace_got[klass_data->_got_index] = ik;
720
721 // Initialize global symbols of the DSO to the corresponding VM symbol values.
722 link_global_lib_symbols();
723
724 int methods_offset = klass_data->_compiled_methods_offset;
725 if (methods_offset >= 0) {
726 address methods_cnt_adr = _methods_offsets + methods_offset;
727 int methods_cnt = *(int*)methods_cnt_adr;
728 // Collect data about compiled methods
729 AOTMethodData* methods_data = NEW_RESOURCE_ARRAY(AOTMethodData, methods_cnt);
730 AOTMethodOffsets* methods_offsets = (AOTMethodOffsets*)(methods_cnt_adr + 4);
731 for (int i = 0; i < methods_cnt; ++i) {
732 AOTMethodOffsets* method_offsets = &methods_offsets[i];
733 int code_id = method_offsets->_code_id;
734 if (_code_to_aot[code_id]._state == invalid) {
735 continue; // skip AOT methods slots which have been invalidated
736 }
737 AOTMethodData* method_data = &methods_data[i];
738 const char* aot_name = _metaspace_names + method_offsets->_name_offset;
739 method_data->_name = aot_name;
740 method_data->_code = _code_space + method_offsets->_code_offset;
741 method_data->_meta = (aot_metadata*)(_method_metadata + method_offsets->_meta_offset);
742 method_data->_metadata_table = (address)_metadata_got + method_offsets->_metadata_got_offset;
743 method_data->_metadata_size = method_offsets->_metadata_got_size;
744 // aot_name format: "<u2_size>Ljava/lang/ThreadGroup;<u2_size>addUnstarted<u2_size>()V"
745 int klass_len = build_u2_from((address)aot_name);
746 const char* method_name = aot_name + 2 + klass_len;
747 Method* m = AOTCodeHeap::find_method(ik, thread, method_name);
748 methodHandle mh(thread, m);
749 if (mh->code() != NULL) { // Does it have already compiled code?
750 continue; // Don't overwrite
751 }
752 publish_aot(mh, method_data, code_id);
753 }
754 }
755 return true;
756 }
757
758 AOTCompiledMethod* AOTCodeHeap::next_in_use_at(int start) const {
759 for (int index = start; index < _method_count; index++) {
760 if (_code_to_aot[index]._state != in_use) {
761 continue; // Skip uninitialized entries.
762 }
763 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
764 return aot;
765 }
766 return NULL;
767 }
768
769 void* AOTCodeHeap::first() const {
770 return next_in_use_at(0);
771 }
772
773 void* AOTCodeHeap::next(void* p) const {
774 AOTCompiledMethod *aot = (AOTCompiledMethod *)p;
775 int next_index = aot->method_index() + 1;
776 assert(next_index <= _method_count, "");
777 if (next_index == _method_count) {
778 return NULL;
779 }
780 return next_in_use_at(next_index);
781 }
782
783 void* AOTCodeHeap::find_start(void* p) const {
784 if (!contains(p)) {
785 return NULL;
786 }
787 size_t offset = pointer_delta(p, low_boundary(), 1);
788 // Use segments table
789 size_t seg_idx = offset / _lib->config()->_codeSegmentSize;
790 if ((int)(_code_segments[seg_idx]) == 0xff) {
791 return NULL;
792 }
793 while (_code_segments[seg_idx] > 0) {
794 seg_idx -= (int)_code_segments[seg_idx];
795 }
796 int code_offset = (int)seg_idx * _lib->config()->_codeSegmentSize;
797 int aot_index = *(int*)(_code_space + code_offset);
798 AOTCompiledMethod* aot = _code_to_aot[aot_index]._aot;
799 assert(aot != NULL, "should find registered aot method");
800 return aot;
801 }
802
803 AOTCompiledMethod* AOTCodeHeap::find_aot(address p) const {
804 assert(contains(p), "should be here");
805 return (AOTCompiledMethod *)find_start(p);
806 }
807
808 CodeBlob* AOTCodeHeap::find_blob_unsafe(void* start) const {
809 return (CodeBlob*)AOTCodeHeap::find_start(start);
810 }
811
812 void AOTCodeHeap::oops_do(OopClosure* f) {
813 for (int i = 0; i < _oop_got_size; i++) {
814 oop* p = &_oop_got[i];
815 if (*p == NULL) continue; // skip non-oops
816 f->do_oop(p);
817 }
818 for (int index = 0; index < _method_count; index++) {
819 if (_code_to_aot[index]._state != in_use) {
820 continue; // Skip uninitialized entries.
821 }
822 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
823 aot->do_oops(f);
824 }
825 }
826
827 // Scan only metaspace_got cells which should have only Klass*,
828 // metadata_got cells are scanned only for alive AOT methods
829 // by AOTCompiledMethod::metadata_do().
830 void AOTCodeHeap::got_metadata_do(void f(Metadata*)) {
831 for (int i = 1; i < _metaspace_got_size; i++) {
832 Metadata** p = &_metaspace_got[i];
833 Metadata* md = *p;
834 if (md == NULL) continue; // skip non-oops
835 if (Metaspace::contains(md)) {
836 f(md);
837 } else {
838 intptr_t meta = (intptr_t)md;
839 fatal("Invalid value in _metaspace_got[%d] = " INTPTR_FORMAT, i, meta);
840 }
841 }
842 }
843
844 void AOTCodeHeap::cleanup_inline_caches() {
845 for (int index = 0; index < _method_count; index++) {
846 if (_code_to_aot[index]._state != in_use) {
847 continue; // Skip uninitialized entries.
848 }
849 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
850 aot->cleanup_inline_caches();
851 }
852 }
853
854 #ifdef ASSERT
855 int AOTCodeHeap::verify_icholder_relocations() {
856 int count = 0;
857 for (int index = 0; index < _method_count; index++) {
858 if (_code_to_aot[index]._state != in_use) {
859 continue; // Skip uninitialized entries.
860 }
861 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
862 count += aot->verify_icholder_relocations();
863 }
864 return count;
865 }
866 #endif
867
868 void AOTCodeHeap::flush_evol_dependents_on(InstanceKlass* dependee) {
869 for (int index = 0; index < _method_count; index++) {
870 if (_code_to_aot[index]._state != in_use) {
871 continue; // Skip uninitialized entries.
872 }
873 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
874 aot->flush_evol_dependents_on(dependee);
875 }
876 }
877
878 void AOTCodeHeap::metadata_do(void f(Metadata*)) {
879 for (int index = 0; index < _method_count; index++) {
880 if (_code_to_aot[index]._state != in_use) {
881 continue; // Skip uninitialized entries.
882 }
883 AOTCompiledMethod* aot = _code_to_aot[index]._aot;
884 if (aot->_is_alive()) {
885 aot->metadata_do(f);
886 }
887 }
888 // Scan metaspace_got cells.
889 got_metadata_do(f);
890 }