1 /*
2 * Copyright (c) 2023, 2025, 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
25
26 #include "asm/macroAssembler.hpp"
27 #include "cds/aotCacheAccess.hpp"
28 #include "cds/aotMetaspace.hpp"
29 #include "cds/cds_globals.hpp"
30 #include "cds/cdsConfig.hpp"
31 #include "cds/heapShared.hpp"
32 #include "classfile/javaAssertions.hpp"
33 #include "code/aotCodeCache.hpp"
34 #include "code/codeCache.hpp"
35 #include "gc/shared/gcConfig.hpp"
36 #include "logging/logStream.hpp"
37 #include "memory/memoryReserver.hpp"
38 #include "runtime/deoptimization.hpp"
39 #include "runtime/flags/flagSetting.hpp"
40 #include "runtime/globals_extension.hpp"
41 #include "runtime/java.hpp"
42 #include "runtime/mutexLocker.hpp"
43 #include "runtime/os.inline.hpp"
44 #include "runtime/sharedRuntime.hpp"
45 #include "runtime/stubInfo.hpp"
46 #include "runtime/stubRoutines.hpp"
47 #include "utilities/copy.hpp"
48 #ifdef COMPILER1
49 #include "c1/c1_Runtime1.hpp"
50 #endif
51 #ifdef COMPILER2
52 #include "opto/runtime.hpp"
53 #endif
54 #if INCLUDE_G1GC
55 #include "gc/g1/g1BarrierSetRuntime.hpp"
56 #endif
57 #if INCLUDE_SHENANDOAHGC
58 #include "gc/shenandoah/shenandoahRuntime.hpp"
59 #endif
60 #if INCLUDE_ZGC
61 #include "gc/z/zBarrierSetRuntime.hpp"
62 #endif
63
64 #include <errno.h>
65 #include <sys/stat.h>
66
67 const char* aot_code_entry_kind_name[] = {
68 #define DECL_KIND_STRING(kind) XSTR(kind),
69 DO_AOTCODEENTRY_KIND(DECL_KIND_STRING)
70 #undef DECL_KIND_STRING
71 };
72
73 static void report_load_failure() {
74 if (AbortVMOnAOTCodeFailure) {
75 vm_exit_during_initialization("Unable to use AOT Code Cache.", nullptr);
76 }
77 log_info(aot, codecache, init)("Unable to use AOT Code Cache.");
78 AOTCodeCache::disable_caching();
79 }
80
81 static void report_store_failure() {
82 if (AbortVMOnAOTCodeFailure) {
83 tty->print_cr("Unable to create AOT Code Cache.");
84 vm_abort(false);
85 }
86 log_info(aot, codecache, exit)("Unable to create AOT Code Cache.");
87 AOTCodeCache::disable_caching();
88 }
89
90 // The sequence of AOT code caching flags and parametters settings.
91 //
92 // 1. The initial AOT code caching flags setting is done
93 // during call to CDSConfig::check_vm_args_consistency().
94 //
95 // 2. The earliest AOT code state check done in compilationPolicy_init()
96 // where we set number of compiler threads for AOT assembly phase.
97 //
98 // 3. We determine presence of AOT code in AOT Cache in
99 // AOTMetaspace::open_static_archive() which is calles
100 // after compilationPolicy_init() but before codeCache_init().
101 //
102 // 4. AOTCodeCache::initialize() is called during universe_init()
103 // and does final AOT state and flags settings.
104 //
105 // 5. Finally AOTCodeCache::init2() is called after universe_init()
106 // when all GC settings are finalized.
107
108 // Next methods determine which action we do with AOT code depending
109 // on phase of AOT process: assembly or production.
110
111 bool AOTCodeCache::is_dumping_adapter() {
112 return AOTAdapterCaching && is_on_for_dump();
113 }
114
115 bool AOTCodeCache::is_using_adapter() {
116 return AOTAdapterCaching && is_on_for_use();
117 }
118
119 bool AOTCodeCache::is_dumping_stub() {
120 return AOTStubCaching && is_on_for_dump();
121 }
122
123 bool AOTCodeCache::is_using_stub() {
124 return AOTStubCaching && is_on_for_use();
125 }
126
127 // Next methods could be called regardless AOT code cache status.
128 // Initially they are called during flags parsing and finilized
129 // in AOTCodeCache::initialize().
130 void AOTCodeCache::enable_caching() {
131 FLAG_SET_ERGO_IF_DEFAULT(AOTStubCaching, true);
132 FLAG_SET_ERGO_IF_DEFAULT(AOTAdapterCaching, true);
133 }
134
135 void AOTCodeCache::disable_caching() {
136 FLAG_SET_ERGO(AOTStubCaching, false);
137 FLAG_SET_ERGO(AOTAdapterCaching, false);
138 }
139
140 bool AOTCodeCache::is_caching_enabled() {
141 return AOTStubCaching || AOTAdapterCaching;
142 }
143
144 static uint32_t encode_id(AOTCodeEntry::Kind kind, int id) {
145 assert(AOTCodeEntry::is_valid_entry_kind(kind), "invalid AOTCodeEntry kind %d", (int)kind);
146 // There can be a conflict of id between an Adapter and *Blob, but that should not cause any functional issue
147 // becasue both id and kind are used to find an entry, and that combination should be unique
148 if (kind == AOTCodeEntry::Adapter) {
149 return id;
150 } else if (kind == AOTCodeEntry::SharedBlob) {
151 assert(StubInfo::is_shared(static_cast<BlobId>(id)), "not a shared blob id %d", id);
152 return id;
153 } else if (kind == AOTCodeEntry::C1Blob) {
154 assert(StubInfo::is_c1(static_cast<BlobId>(id)), "not a c1 blob id %d", id);
155 return id;
156 } else {
157 // kind must be AOTCodeEntry::C2Blob
158 assert(StubInfo::is_c2(static_cast<BlobId>(id)), "not a c2 blob id %d", id);
159 return id;
160 }
161 }
162
163 static uint _max_aot_code_size = 0;
164 uint AOTCodeCache::max_aot_code_size() {
165 return _max_aot_code_size;
166 }
167
168 // It is called from AOTMetaspace::initialize_shared_spaces()
169 // which is called from universe_init().
170 // At this point all AOT class linking seetings are finilized
171 // and AOT cache is open so we can map AOT code region.
172 void AOTCodeCache::initialize() {
173 #if defined(ZERO) || !(defined(AMD64) || defined(AARCH64))
174 log_info(aot, codecache, init)("AOT Code Cache is not supported on this platform.");
175 disable_caching();
176 return;
177 #else
178 if (FLAG_IS_DEFAULT(AOTCache)) {
179 log_info(aot, codecache, init)("AOT Code Cache is not used: AOTCache is not specified.");
180 disable_caching();
181 return; // AOTCache must be specified to dump and use AOT code
182 }
183
184 // Disable stubs caching until JDK-8357398 is fixed.
185 FLAG_SET_ERGO(AOTStubCaching, false);
186
187 if (VerifyOops) {
188 // Disable AOT stubs caching when VerifyOops flag is on.
189 // Verify oops code generated a lot of C strings which overflow
190 // AOT C string table (which has fixed size).
191 // AOT C string table will be reworked later to handle such cases.
192 //
193 // Note: AOT adapters are not affected - they don't have oop operations.
194 log_info(aot, codecache, init)("AOT Stubs Caching is not supported with VerifyOops.");
195 FLAG_SET_ERGO(AOTStubCaching, false);
196 }
197
198 bool is_dumping = false;
199 bool is_using = false;
200 if (CDSConfig::is_dumping_final_static_archive() && CDSConfig::is_dumping_aot_linked_classes()) {
201 is_dumping = true;
202 enable_caching();
203 is_dumping = is_caching_enabled();
204 } else if (CDSConfig::is_using_archive() && CDSConfig::is_using_aot_linked_classes()) {
205 enable_caching();
206 is_using = is_caching_enabled();
207 } else {
208 log_info(aot, codecache, init)("AOT Code Cache is not used: AOT Class Linking is not used.");
209 disable_caching();
210 return; // nothing to do
211 }
212 if (!(is_dumping || is_using)) {
213 disable_caching();
214 return; // AOT code caching disabled on command line
215 }
216 _max_aot_code_size = AOTCodeMaxSize;
217 if (!FLAG_IS_DEFAULT(AOTCodeMaxSize)) {
218 if (!is_aligned(AOTCodeMaxSize, os::vm_allocation_granularity())) {
219 _max_aot_code_size = align_up(AOTCodeMaxSize, os::vm_allocation_granularity());
220 log_debug(aot,codecache,init)("Max AOT Code Cache size is aligned up to %uK", (int)(max_aot_code_size()/K));
221 }
222 }
223 size_t aot_code_size = is_using ? AOTCacheAccess::get_aot_code_region_size() : 0;
224 if (is_using && aot_code_size == 0) {
225 log_info(aot, codecache, init)("AOT Code Cache is empty");
226 disable_caching();
227 return;
228 }
229 if (!open_cache(is_dumping, is_using)) {
230 if (is_using) {
231 report_load_failure();
232 } else {
233 report_store_failure();
234 }
235 return;
236 }
237 if (is_dumping) {
238 FLAG_SET_DEFAULT(ForceUnreachable, true);
239 }
240 FLAG_SET_DEFAULT(DelayCompilerStubsGeneration, false);
241 #endif // defined(AMD64) || defined(AARCH64)
242 }
243
244 static AOTCodeCache* opened_cache = nullptr; // Use this until we verify the cache
245 AOTCodeCache* AOTCodeCache::_cache = nullptr;
246 DEBUG_ONLY( bool AOTCodeCache::_passed_init2 = false; )
247
248 // It is called after universe_init() when all GC settings are finalized.
249 void AOTCodeCache::init2() {
250 DEBUG_ONLY( _passed_init2 = true; )
251 if (opened_cache == nullptr) {
252 return;
253 }
254 if (!opened_cache->verify_config()) {
255 delete opened_cache;
256 opened_cache = nullptr;
257 report_load_failure();
258 return;
259 }
260
261 // initialize the table of external routines so we can save
262 // generated code blobs that reference them
263 AOTCodeAddressTable* table = opened_cache->_table;
264 assert(table != nullptr, "should be initialized already");
265 table->init_extrs();
266
267 // Now cache and address table are ready for AOT code generation
268 _cache = opened_cache;
269 }
270
271 bool AOTCodeCache::open_cache(bool is_dumping, bool is_using) {
272 opened_cache = new AOTCodeCache(is_dumping, is_using);
273 if (opened_cache->failed()) {
274 delete opened_cache;
275 opened_cache = nullptr;
276 return false;
277 }
278 return true;
279 }
280
281 void AOTCodeCache::close() {
282 if (is_on()) {
283 delete _cache; // Free memory
284 _cache = nullptr;
285 opened_cache = nullptr;
286 }
287 }
288
289 #define DATA_ALIGNMENT HeapWordSize
290
291 AOTCodeCache::AOTCodeCache(bool is_dumping, bool is_using) :
292 _load_header(nullptr),
293 _load_buffer(nullptr),
294 _store_buffer(nullptr),
295 _C_store_buffer(nullptr),
296 _write_position(0),
297 _load_size(0),
298 _store_size(0),
299 _for_use(is_using),
300 _for_dump(is_dumping),
301 _closing(false),
302 _failed(false),
303 _lookup_failed(false),
304 _table(nullptr),
305 _load_entries(nullptr),
306 _search_entries(nullptr),
307 _store_entries(nullptr),
308 _C_strings_buf(nullptr),
309 _store_entries_cnt(0)
310 {
311 // Read header at the begining of cache
312 if (_for_use) {
313 // Read cache
314 size_t load_size = AOTCacheAccess::get_aot_code_region_size();
315 ReservedSpace rs = MemoryReserver::reserve(load_size, mtCode);
316 if (!rs.is_reserved()) {
317 log_warning(aot, codecache, init)("Failed to reserved %u bytes of memory for mapping AOT code region into AOT Code Cache", (uint)load_size);
318 set_failed();
319 return;
320 }
321 if (!AOTCacheAccess::map_aot_code_region(rs)) {
322 log_warning(aot, codecache, init)("Failed to read/mmap cached code region into AOT Code Cache");
323 set_failed();
324 return;
325 }
326
327 _load_size = (uint)load_size;
328 _load_buffer = (char*)rs.base();
329 assert(is_aligned(_load_buffer, DATA_ALIGNMENT), "load_buffer is not aligned");
330 log_debug(aot, codecache, init)("Mapped %u bytes at address " INTPTR_FORMAT " at AOT Code Cache", _load_size, p2i(_load_buffer));
331
332 _load_header = (Header*)addr(0);
333 if (!_load_header->verify(_load_size)) {
334 set_failed();
335 return;
336 }
337 log_info (aot, codecache, init)("Loaded %u AOT code entries from AOT Code Cache", _load_header->entries_count());
338 log_debug(aot, codecache, init)(" Adapters: total=%u", _load_header->adapters_count());
339 log_debug(aot, codecache, init)(" Shared Blobs: total=%u", _load_header->shared_blobs_count());
340 log_debug(aot, codecache, init)(" C1 Blobs: total=%u", _load_header->C1_blobs_count());
341 log_debug(aot, codecache, init)(" C2 Blobs: total=%u", _load_header->C2_blobs_count());
342 log_debug(aot, codecache, init)(" AOT code cache size: %u bytes", _load_header->cache_size());
343
344 // Read strings
345 load_strings();
346 }
347 if (_for_dump) {
348 _C_store_buffer = NEW_C_HEAP_ARRAY(char, max_aot_code_size() + DATA_ALIGNMENT, mtCode);
349 _store_buffer = align_up(_C_store_buffer, DATA_ALIGNMENT);
350 // Entries allocated at the end of buffer in reverse (as on stack).
351 _store_entries = (AOTCodeEntry*)align_up(_C_store_buffer + max_aot_code_size(), DATA_ALIGNMENT);
352 log_debug(aot, codecache, init)("Allocated store buffer at address " INTPTR_FORMAT " of size %u", p2i(_store_buffer), max_aot_code_size());
353 }
354 _table = new AOTCodeAddressTable();
355 }
356
357 void AOTCodeCache::init_early_stubs_table() {
358 AOTCodeAddressTable* table = addr_table();
359 if (table != nullptr) {
360 table->init_early_stubs();
361 }
362 }
363
364 void AOTCodeCache::init_shared_blobs_table() {
365 AOTCodeAddressTable* table = addr_table();
366 if (table != nullptr) {
367 table->init_shared_blobs();
368 }
369 }
370
371 void AOTCodeCache::init_early_c1_table() {
372 AOTCodeAddressTable* table = addr_table();
373 if (table != nullptr) {
374 table->init_early_c1();
375 }
376 }
377
378 AOTCodeCache::~AOTCodeCache() {
379 if (_closing) {
380 return; // Already closed
381 }
382 // Stop any further access to cache.
383 _closing = true;
384
385 MutexLocker ml(Compile_lock);
386 if (for_dump()) { // Finalize cache
387 finish_write();
388 }
389 _load_buffer = nullptr;
390 if (_C_store_buffer != nullptr) {
391 FREE_C_HEAP_ARRAY(char, _C_store_buffer);
392 _C_store_buffer = nullptr;
393 _store_buffer = nullptr;
394 }
395 if (_table != nullptr) {
396 MutexLocker ml(AOTCodeCStrings_lock, Mutex::_no_safepoint_check_flag);
397 delete _table;
398 _table = nullptr;
399 }
400 }
401
402 void AOTCodeCache::Config::record() {
403 _flags = 0;
404 #ifdef ASSERT
405 _flags |= debugVM;
406 #endif
407 if (UseCompressedOops) {
408 _flags |= compressedOops;
409 }
410 if (UseCompressedClassPointers) {
411 _flags |= compressedClassPointers;
412 }
413 if (UseTLAB) {
414 _flags |= useTLAB;
415 }
416 if (JavaAssertions::systemClassDefault()) {
417 _flags |= systemClassAssertions;
418 }
419 if (JavaAssertions::userClassDefault()) {
420 _flags |= userClassAssertions;
421 }
422 if (EnableContended) {
423 _flags |= enableContendedPadding;
424 }
425 if (RestrictContended) {
426 _flags |= restrictContendedPadding;
427 }
428 _compressedOopShift = CompressedOops::shift();
429 _compressedOopBase = CompressedOops::base();
430 _compressedKlassShift = CompressedKlassPointers::shift();
431 _contendedPaddingWidth = ContendedPaddingWidth;
432 _gc = (uint)Universe::heap()->kind();
433 }
434
435 bool AOTCodeCache::Config::verify() const {
436 // First checks affect all cached AOT code
437 #ifdef ASSERT
438 if ((_flags & debugVM) == 0) {
439 log_debug(aot, codecache, init)("AOT Code Cache disabled: it was created by product VM, it can't be used by debug VM");
440 return false;
441 }
442 #else
443 if ((_flags & debugVM) != 0) {
444 log_debug(aot, codecache, init)("AOT Code Cache disabled: it was created by debug VM, it can't be used by product VM");
445 return false;
446 }
447 #endif
448
449 CollectedHeap::Name aot_gc = (CollectedHeap::Name)_gc;
450 if (aot_gc != Universe::heap()->kind()) {
451 log_debug(aot, codecache, init)("AOT Code Cache disabled: it was created with different GC: %s vs current %s", GCConfig::hs_err_name(aot_gc), GCConfig::hs_err_name());
452 return false;
453 }
454
455 if (((_flags & compressedClassPointers) != 0) != UseCompressedClassPointers) {
456 log_debug(aot, codecache, init)("AOT Code Cache disabled: it was created with UseCompressedClassPointers = %s", UseCompressedClassPointers ? "false" : "true");
457 return false;
458 }
459 if (_compressedKlassShift != (uint)CompressedKlassPointers::shift()) {
460 log_debug(aot, codecache, init)("AOT Code Cache disabled: it was created with CompressedKlassPointers::shift() = %d vs current %d", _compressedKlassShift, CompressedKlassPointers::shift());
461 return false;
462 }
463
464 // The following checks do not affect AOT adapters caching
465
466 if (((_flags & compressedOops) != 0) != UseCompressedOops) {
467 log_debug(aot, codecache, init)("AOT Code Cache disabled: it was created with UseCompressedOops = %s", UseCompressedOops ? "false" : "true");
468 AOTStubCaching = false;
469 }
470 if (_compressedOopShift != (uint)CompressedOops::shift()) {
471 log_debug(aot, codecache, init)("AOT Code Cache disabled: it was created with different CompressedOops::shift(): %d vs current %d", _compressedOopShift, CompressedOops::shift());
472 AOTStubCaching = false;
473 }
474
475 // This should be the last check as it only disables AOTStubCaching
476 if ((_compressedOopBase == nullptr || CompressedOops::base() == nullptr) && (_compressedOopBase != CompressedOops::base())) {
477 log_debug(aot, codecache, init)("AOTStubCaching is disabled: incompatible CompressedOops::base(): %p vs current %p", _compressedOopBase, CompressedOops::base());
478 AOTStubCaching = false;
479 }
480
481 return true;
482 }
483
484 bool AOTCodeCache::Header::verify(uint load_size) const {
485 if (_version != AOT_CODE_VERSION) {
486 log_debug(aot, codecache, init)("AOT Code Cache disabled: different AOT Code version %d vs %d recorded in AOT Code header", AOT_CODE_VERSION, _version);
487 return false;
488 }
489 if (load_size < _cache_size) {
490 log_debug(aot, codecache, init)("AOT Code Cache disabled: AOT Code Cache size %d < %d recorded in AOT Code header", load_size, _cache_size);
491 return false;
492 }
493 return true;
494 }
495
496 AOTCodeCache* AOTCodeCache::open_for_use() {
497 if (AOTCodeCache::is_on_for_use()) {
498 return AOTCodeCache::cache();
499 }
500 return nullptr;
501 }
502
503 AOTCodeCache* AOTCodeCache::open_for_dump() {
504 if (AOTCodeCache::is_on_for_dump()) {
505 AOTCodeCache* cache = AOTCodeCache::cache();
506 cache->clear_lookup_failed(); // Reset bit
507 return cache;
508 }
509 return nullptr;
510 }
511
512 void copy_bytes(const char* from, address to, uint size) {
513 assert((int)size > 0, "sanity");
514 memcpy(to, from, size);
515 log_trace(aot, codecache)("Copied %d bytes from " INTPTR_FORMAT " to " INTPTR_FORMAT, size, p2i(from), p2i(to));
516 }
517
518 AOTCodeReader::AOTCodeReader(AOTCodeCache* cache, AOTCodeEntry* entry) {
519 _cache = cache;
520 _entry = entry;
521 _load_buffer = cache->cache_buffer();
522 _read_position = 0;
523 _lookup_failed = false;
524 }
525
526 void AOTCodeReader::set_read_position(uint pos) {
527 if (pos == _read_position) {
528 return;
529 }
530 assert(pos < _cache->load_size(), "offset:%d >= file size:%d", pos, _cache->load_size());
531 _read_position = pos;
532 }
533
534 bool AOTCodeCache::set_write_position(uint pos) {
535 if (pos == _write_position) {
536 return true;
537 }
538 if (_store_size < _write_position) {
539 _store_size = _write_position; // Adjust during write
540 }
541 assert(pos < _store_size, "offset:%d >= file size:%d", pos, _store_size);
542 _write_position = pos;
543 return true;
544 }
545
546 static char align_buffer[256] = { 0 };
547
548 bool AOTCodeCache::align_write() {
549 // We are not executing code from cache - we copy it by bytes first.
550 // No need for big alignment (or at all).
551 uint padding = DATA_ALIGNMENT - (_write_position & (DATA_ALIGNMENT - 1));
552 if (padding == DATA_ALIGNMENT) {
553 return true;
554 }
555 uint n = write_bytes((const void*)&align_buffer, padding);
556 if (n != padding) {
557 return false;
558 }
559 log_trace(aot, codecache)("Adjust write alignment in AOT Code Cache");
560 return true;
561 }
562
563 // Check to see if AOT code cache has required space to store "nbytes" of data
564 address AOTCodeCache::reserve_bytes(uint nbytes) {
565 assert(for_dump(), "Code Cache file is not created");
566 uint new_position = _write_position + nbytes;
567 if (new_position >= (uint)((char*)_store_entries - _store_buffer)) {
568 log_warning(aot,codecache)("Failed to ensure %d bytes at offset %d in AOT Code Cache. Increase AOTCodeMaxSize.",
569 nbytes, _write_position);
570 set_failed();
571 report_store_failure();
572 return nullptr;
573 }
574 address buffer = (address)(_store_buffer + _write_position);
575 log_trace(aot, codecache)("Reserved %d bytes at offset %d in AOT Code Cache", nbytes, _write_position);
576 _write_position += nbytes;
577 if (_store_size < _write_position) {
578 _store_size = _write_position;
579 }
580 return buffer;
581 }
582
583 uint AOTCodeCache::write_bytes(const void* buffer, uint nbytes) {
584 assert(for_dump(), "Code Cache file is not created");
585 if (nbytes == 0) {
586 return 0;
587 }
588 uint new_position = _write_position + nbytes;
589 if (new_position >= (uint)((char*)_store_entries - _store_buffer)) {
590 log_warning(aot, codecache)("Failed to write %d bytes at offset %d to AOT Code Cache. Increase AOTCodeMaxSize.",
591 nbytes, _write_position);
592 set_failed();
593 report_store_failure();
594 return 0;
595 }
596 copy_bytes((const char* )buffer, (address)(_store_buffer + _write_position), nbytes);
597 log_trace(aot, codecache)("Wrote %d bytes at offset %d to AOT Code Cache", nbytes, _write_position);
598 _write_position += nbytes;
599 if (_store_size < _write_position) {
600 _store_size = _write_position;
601 }
602 return nbytes;
603 }
604
605 void* AOTCodeEntry::operator new(size_t x, AOTCodeCache* cache) {
606 return (void*)(cache->add_entry());
607 }
608
609 static bool check_entry(AOTCodeEntry::Kind kind, uint id, AOTCodeEntry* entry) {
610 if (entry->kind() == kind) {
611 assert(entry->id() == id, "sanity");
612 return true; // Found
613 }
614 return false;
615 }
616
617 AOTCodeEntry* AOTCodeCache::find_entry(AOTCodeEntry::Kind kind, uint id) {
618 assert(_for_use, "sanity");
619 uint count = _load_header->entries_count();
620 if (_load_entries == nullptr) {
621 // Read it
622 _search_entries = (uint*)addr(_load_header->entries_offset()); // [id, index]
623 _load_entries = (AOTCodeEntry*)(_search_entries + 2 * count);
624 log_debug(aot, codecache, init)("Read %d entries table at offset %d from AOT Code Cache", count, _load_header->entries_offset());
625 }
626 // Binary search
627 int l = 0;
628 int h = count - 1;
629 while (l <= h) {
630 int mid = (l + h) >> 1;
631 int ix = mid * 2;
632 uint is = _search_entries[ix];
633 if (is == id) {
634 int index = _search_entries[ix + 1];
635 AOTCodeEntry* entry = &(_load_entries[index]);
636 if (check_entry(kind, id, entry)) {
637 return entry; // Found
638 }
639 // Linear search around to handle id collission
640 for (int i = mid - 1; i >= l; i--) { // search back
641 ix = i * 2;
642 is = _search_entries[ix];
643 if (is != id) {
644 break;
645 }
646 index = _search_entries[ix + 1];
647 AOTCodeEntry* entry = &(_load_entries[index]);
648 if (check_entry(kind, id, entry)) {
649 return entry; // Found
650 }
651 }
652 for (int i = mid + 1; i <= h; i++) { // search forward
653 ix = i * 2;
654 is = _search_entries[ix];
655 if (is != id) {
656 break;
657 }
658 index = _search_entries[ix + 1];
659 AOTCodeEntry* entry = &(_load_entries[index]);
660 if (check_entry(kind, id, entry)) {
661 return entry; // Found
662 }
663 }
664 break; // Not found match
665 } else if (is < id) {
666 l = mid + 1;
667 } else {
668 h = mid - 1;
669 }
670 }
671 return nullptr;
672 }
673
674 extern "C" {
675 static int uint_cmp(const void *i, const void *j) {
676 uint a = *(uint *)i;
677 uint b = *(uint *)j;
678 return a > b ? 1 : a < b ? -1 : 0;
679 }
680 }
681
682 bool AOTCodeCache::finish_write() {
683 if (!align_write()) {
684 return false;
685 }
686 uint strings_offset = _write_position;
687 int strings_count = store_strings();
688 if (strings_count < 0) {
689 return false;
690 }
691 if (!align_write()) {
692 return false;
693 }
694 uint strings_size = _write_position - strings_offset;
695
696 uint entries_count = 0; // Number of entrant (useful) code entries
697 uint entries_offset = _write_position;
698
699 uint store_count = _store_entries_cnt;
700 if (store_count > 0) {
701 uint header_size = (uint)align_up(sizeof(AOTCodeCache::Header), DATA_ALIGNMENT);
702 uint code_count = store_count;
703 uint search_count = code_count * 2;
704 uint search_size = search_count * sizeof(uint);
705 uint entries_size = (uint)align_up(code_count * sizeof(AOTCodeEntry), DATA_ALIGNMENT); // In bytes
706 // _write_position includes size of code and strings
707 uint code_alignment = code_count * DATA_ALIGNMENT; // We align_up code size when storing it.
708 uint total_size = header_size + _write_position + code_alignment + search_size + entries_size;
709 assert(total_size < max_aot_code_size(), "AOT Code size (" UINT32_FORMAT " bytes) is greater than AOTCodeMaxSize(" UINT32_FORMAT " bytes).", total_size, max_aot_code_size());
710
711 // Create ordered search table for entries [id, index];
712 uint* search = NEW_C_HEAP_ARRAY(uint, search_count, mtCode);
713 // Allocate in AOT Cache buffer
714 char* buffer = (char *)AOTCacheAccess::allocate_aot_code_region(total_size + DATA_ALIGNMENT);
715 char* start = align_up(buffer, DATA_ALIGNMENT);
716 char* current = start + header_size; // Skip header
717
718 AOTCodeEntry* entries_address = _store_entries; // Pointer to latest entry
719 uint adapters_count = 0;
720 uint shared_blobs_count = 0;
721 uint C1_blobs_count = 0;
722 uint C2_blobs_count = 0;
723 uint max_size = 0;
724 // AOTCodeEntry entries were allocated in reverse in store buffer.
725 // Process them in reverse order to cache first code first.
726 for (int i = store_count - 1; i >= 0; i--) {
727 entries_address[i].set_next(nullptr); // clear pointers before storing data
728 uint size = align_up(entries_address[i].size(), DATA_ALIGNMENT);
729 if (size > max_size) {
730 max_size = size;
731 }
732 copy_bytes((_store_buffer + entries_address[i].offset()), (address)current, size);
733 entries_address[i].set_offset(current - start); // New offset
734 current += size;
735 uint n = write_bytes(&(entries_address[i]), sizeof(AOTCodeEntry));
736 if (n != sizeof(AOTCodeEntry)) {
737 FREE_C_HEAP_ARRAY(uint, search);
738 return false;
739 }
740 search[entries_count*2 + 0] = entries_address[i].id();
741 search[entries_count*2 + 1] = entries_count;
742 entries_count++;
743 AOTCodeEntry::Kind kind = entries_address[i].kind();
744 if (kind == AOTCodeEntry::Adapter) {
745 adapters_count++;
746 } else if (kind == AOTCodeEntry::SharedBlob) {
747 shared_blobs_count++;
748 } else if (kind == AOTCodeEntry::C1Blob) {
749 C1_blobs_count++;
750 } else if (kind == AOTCodeEntry::C2Blob) {
751 C2_blobs_count++;
752 }
753 }
754 if (entries_count == 0) {
755 log_info(aot, codecache, exit)("AOT Code Cache was not created: no entires");
756 FREE_C_HEAP_ARRAY(uint, search);
757 return true; // Nothing to write
758 }
759 assert(entries_count <= store_count, "%d > %d", entries_count, store_count);
760 // Write strings
761 if (strings_count > 0) {
762 copy_bytes((_store_buffer + strings_offset), (address)current, strings_size);
763 strings_offset = (current - start); // New offset
764 current += strings_size;
765 }
766
767 uint new_entries_offset = (current - start); // New offset
768 // Sort and store search table
769 qsort(search, entries_count, 2*sizeof(uint), uint_cmp);
770 search_size = 2 * entries_count * sizeof(uint);
771 copy_bytes((const char*)search, (address)current, search_size);
772 FREE_C_HEAP_ARRAY(uint, search);
773 current += search_size;
774
775 // Write entries
776 entries_size = entries_count * sizeof(AOTCodeEntry); // New size
777 copy_bytes((_store_buffer + entries_offset), (address)current, entries_size);
778 current += entries_size;
779 uint size = (current - start);
780 assert(size <= total_size, "%d > %d", size , total_size);
781
782 log_debug(aot, codecache, exit)(" Adapters: total=%u", adapters_count);
783 log_debug(aot, codecache, exit)(" Shared Blobs: total=%d", shared_blobs_count);
784 log_debug(aot, codecache, exit)(" C1 Blobs: total=%d", C1_blobs_count);
785 log_debug(aot, codecache, exit)(" C2 Blobs: total=%d", C2_blobs_count);
786 log_debug(aot, codecache, exit)(" AOT code cache size: %u bytes, max entry's size: %u bytes", size, max_size);
787
788 // Finalize header
789 AOTCodeCache::Header* header = (AOTCodeCache::Header*)start;
790 header->init(size, (uint)strings_count, strings_offset,
791 entries_count, new_entries_offset,
792 adapters_count, shared_blobs_count,
793 C1_blobs_count, C2_blobs_count);
794
795 log_info(aot, codecache, exit)("Wrote %d AOT code entries to AOT Code Cache", entries_count);
796 }
797 return true;
798 }
799
800 //------------------Store/Load AOT code ----------------------
801
802 bool AOTCodeCache::store_code_blob(CodeBlob& blob, AOTCodeEntry::Kind entry_kind, uint id, const char* name) {
803 AOTCodeCache* cache = open_for_dump();
804 if (cache == nullptr) {
805 return false;
806 }
807 assert(AOTCodeEntry::is_valid_entry_kind(entry_kind), "invalid entry_kind %d", entry_kind);
808
809 if (AOTCodeEntry::is_adapter(entry_kind) && !is_dumping_adapter()) {
810 return false;
811 }
812 if (AOTCodeEntry::is_blob(entry_kind) && !is_dumping_stub()) {
813 return false;
814 }
815 log_debug(aot, codecache, stubs)("Writing blob '%s' (id=%u, kind=%s) to AOT Code Cache", name, id, aot_code_entry_kind_name[entry_kind]);
816
817 #ifdef ASSERT
818 LogStreamHandle(Trace, aot, codecache, stubs) log;
819 if (log.is_enabled()) {
820 FlagSetting fs(PrintRelocations, true);
821 blob.print_on(&log);
822 }
823 #endif
824 // we need to take a lock to prevent race between compiler threads generating AOT code
825 // and the main thread generating adapter
826 MutexLocker ml(Compile_lock);
827 if (!is_on()) {
828 return false; // AOT code cache was already dumped and closed.
829 }
830 if (!cache->align_write()) {
831 return false;
832 }
833 uint entry_position = cache->_write_position;
834
835 // Write name
836 uint name_offset = cache->_write_position - entry_position;
837 uint name_size = (uint)strlen(name) + 1; // Includes '/0'
838 uint n = cache->write_bytes(name, name_size);
839 if (n != name_size) {
840 return false;
841 }
842
843 // Write CodeBlob
844 if (!cache->align_write()) {
845 return false;
846 }
847 uint blob_offset = cache->_write_position - entry_position;
848 address archive_buffer = cache->reserve_bytes(blob.size());
849 if (archive_buffer == nullptr) {
850 return false;
851 }
852 CodeBlob::archive_blob(&blob, archive_buffer);
853
854 uint reloc_data_size = blob.relocation_size();
855 n = cache->write_bytes((address)blob.relocation_begin(), reloc_data_size);
856 if (n != reloc_data_size) {
857 return false;
858 }
859
860 bool has_oop_maps = false;
861 if (blob.oop_maps() != nullptr) {
862 if (!cache->write_oop_map_set(blob)) {
863 return false;
864 }
865 has_oop_maps = true;
866 }
867
868 #ifndef PRODUCT
869 // Write asm remarks
870 if (!cache->write_asm_remarks(blob)) {
871 return false;
872 }
873 if (!cache->write_dbg_strings(blob)) {
874 return false;
875 }
876 #endif /* PRODUCT */
877
878 if (!cache->write_relocations(blob)) {
879 if (!cache->failed()) {
880 // We may miss an address in AOT table - skip this code blob.
881 cache->set_write_position(entry_position);
882 }
883 return false;
884 }
885
886 uint entry_size = cache->_write_position - entry_position;
887 AOTCodeEntry* entry = new(cache) AOTCodeEntry(entry_kind, encode_id(entry_kind, id),
888 entry_position, entry_size, name_offset, name_size,
889 blob_offset, has_oop_maps, blob.content_begin());
890 log_debug(aot, codecache, stubs)("Wrote code blob '%s' (id=%u, kind=%s) to AOT Code Cache", name, id, aot_code_entry_kind_name[entry_kind]);
891 return true;
892 }
893
894 bool AOTCodeCache::store_code_blob(CodeBlob& blob, AOTCodeEntry::Kind entry_kind, BlobId id) {
895 assert(AOTCodeEntry::is_blob(entry_kind),
896 "wrong entry kind for blob id %s", StubInfo::name(id));
897 return store_code_blob(blob, entry_kind, (uint)id, StubInfo::name(id));
898 }
899
900 CodeBlob* AOTCodeCache::load_code_blob(AOTCodeEntry::Kind entry_kind, uint id, const char* name) {
901 AOTCodeCache* cache = open_for_use();
902 if (cache == nullptr) {
903 return nullptr;
904 }
905 assert(AOTCodeEntry::is_valid_entry_kind(entry_kind), "invalid entry_kind %d", entry_kind);
906
907 if (AOTCodeEntry::is_adapter(entry_kind) && !is_using_adapter()) {
908 return nullptr;
909 }
910 if (AOTCodeEntry::is_blob(entry_kind) && !is_using_stub()) {
911 return nullptr;
912 }
913 log_debug(aot, codecache, stubs)("Reading blob '%s' (id=%u, kind=%s) from AOT Code Cache", name, id, aot_code_entry_kind_name[entry_kind]);
914
915 AOTCodeEntry* entry = cache->find_entry(entry_kind, encode_id(entry_kind, id));
916 if (entry == nullptr) {
917 return nullptr;
918 }
919 AOTCodeReader reader(cache, entry);
920 CodeBlob* blob = reader.compile_code_blob(name);
921
922 log_debug(aot, codecache, stubs)("%sRead blob '%s' (id=%u, kind=%s) from AOT Code Cache",
923 (blob == nullptr? "Failed to " : ""), name, id, aot_code_entry_kind_name[entry_kind]);
924 return blob;
925 }
926
927 CodeBlob* AOTCodeCache::load_code_blob(AOTCodeEntry::Kind entry_kind, BlobId id) {
928 assert(AOTCodeEntry::is_blob(entry_kind),
929 "wrong entry kind for blob id %s", StubInfo::name(id));
930 return load_code_blob(entry_kind, (uint)id, StubInfo::name(id));
931 }
932
933 CodeBlob* AOTCodeReader::compile_code_blob(const char* name) {
934 uint entry_position = _entry->offset();
935
936 // Read name
937 uint name_offset = entry_position + _entry->name_offset();
938 uint name_size = _entry->name_size(); // Includes '/0'
939 const char* stored_name = addr(name_offset);
940
941 if (strncmp(stored_name, name, (name_size - 1)) != 0) {
942 log_warning(aot, codecache, stubs)("Saved blob's name '%s' is different from the expected name '%s'",
943 stored_name, name);
944 set_lookup_failed(); // Skip this blob
945 return nullptr;
946 }
947
948 // Read archived code blob
949 uint offset = entry_position + _entry->blob_offset();
950 CodeBlob* archived_blob = (CodeBlob*)addr(offset);
951 offset += archived_blob->size();
952
953 address reloc_data = (address)addr(offset);
954 offset += archived_blob->relocation_size();
955 set_read_position(offset);
956
957 ImmutableOopMapSet* oop_maps = nullptr;
958 if (_entry->has_oop_maps()) {
959 oop_maps = read_oop_map_set();
960 }
961
962 CodeBlob* code_blob = CodeBlob::create(archived_blob,
963 stored_name,
964 reloc_data,
965 oop_maps
966 );
967 if (code_blob == nullptr) { // no space left in CodeCache
968 return nullptr;
969 }
970
971 #ifndef PRODUCT
972 code_blob->asm_remarks().init();
973 read_asm_remarks(code_blob->asm_remarks());
974 code_blob->dbg_strings().init();
975 read_dbg_strings(code_blob->dbg_strings());
976 #endif // PRODUCT
977
978 fix_relocations(code_blob);
979
980 #ifdef ASSERT
981 LogStreamHandle(Trace, aot, codecache, stubs) log;
982 if (log.is_enabled()) {
983 FlagSetting fs(PrintRelocations, true);
984 code_blob->print_on(&log);
985 }
986 #endif
987 return code_blob;
988 }
989
990 // ------------ process code and data --------------
991
992 // Can't use -1. It is valid value for jump to iteself destination
993 // used by static call stub: see NativeJump::jump_destination().
994 #define BAD_ADDRESS_ID -2
995
996 bool AOTCodeCache::write_relocations(CodeBlob& code_blob) {
997 GrowableArray<uint> reloc_data;
998 RelocIterator iter(&code_blob);
999 LogStreamHandle(Trace, aot, codecache, reloc) log;
1000 while (iter.next()) {
1001 int idx = reloc_data.append(0); // default value
1002 switch (iter.type()) {
1003 case relocInfo::none:
1004 break;
1005 case relocInfo::runtime_call_type: {
1006 // Record offset of runtime destination
1007 CallRelocation* r = (CallRelocation*)iter.reloc();
1008 address dest = r->destination();
1009 if (dest == r->addr()) { // possible call via trampoline on Aarch64
1010 dest = (address)-1; // do nothing in this case when loading this relocation
1011 }
1012 int id = _table->id_for_address(dest, iter, &code_blob);
1013 if (id == BAD_ADDRESS_ID) {
1014 return false;
1015 }
1016 reloc_data.at_put(idx, id);
1017 break;
1018 }
1019 case relocInfo::runtime_call_w_cp_type:
1020 log_debug(aot, codecache, reloc)("runtime_call_w_cp_type relocation is not implemented");
1021 return false;
1022 case relocInfo::external_word_type: {
1023 // Record offset of runtime target
1024 address target = ((external_word_Relocation*)iter.reloc())->target();
1025 int id = _table->id_for_address(target, iter, &code_blob);
1026 if (id == BAD_ADDRESS_ID) {
1027 return false;
1028 }
1029 reloc_data.at_put(idx, id);
1030 break;
1031 }
1032 case relocInfo::internal_word_type:
1033 break;
1034 case relocInfo::section_word_type:
1035 break;
1036 case relocInfo::post_call_nop_type:
1037 break;
1038 default:
1039 log_debug(aot, codecache, reloc)("relocation %d unimplemented", (int)iter.type());
1040 return false;
1041 break;
1042 }
1043 if (log.is_enabled()) {
1044 iter.print_current_on(&log);
1045 }
1046 }
1047
1048 // Write additional relocation data: uint per relocation
1049 // Write the count first
1050 int count = reloc_data.length();
1051 write_bytes(&count, sizeof(int));
1052 for (GrowableArrayIterator<uint> iter = reloc_data.begin();
1053 iter != reloc_data.end(); ++iter) {
1054 uint value = *iter;
1055 int n = write_bytes(&value, sizeof(uint));
1056 if (n != sizeof(uint)) {
1057 return false;
1058 }
1059 }
1060 return true;
1061 }
1062
1063 void AOTCodeReader::fix_relocations(CodeBlob* code_blob) {
1064 LogStreamHandle(Trace, aot, reloc) log;
1065 uint offset = read_position();
1066 int count = *(int*)addr(offset);
1067 offset += sizeof(int);
1068 if (log.is_enabled()) {
1069 log.print_cr("======== extra relocations count=%d", count);
1070 }
1071 uint* reloc_data = (uint*)addr(offset);
1072 offset += (count * sizeof(uint));
1073 set_read_position(offset);
1074
1075 RelocIterator iter(code_blob);
1076 int j = 0;
1077 while (iter.next()) {
1078 switch (iter.type()) {
1079 case relocInfo::none:
1080 break;
1081 case relocInfo::runtime_call_type: {
1082 address dest = _cache->address_for_id(reloc_data[j]);
1083 if (dest != (address)-1) {
1084 ((CallRelocation*)iter.reloc())->set_destination(dest);
1085 }
1086 break;
1087 }
1088 case relocInfo::runtime_call_w_cp_type:
1089 // this relocation should not be in cache (see write_relocations)
1090 assert(false, "runtime_call_w_cp_type relocation is not implemented");
1091 break;
1092 case relocInfo::external_word_type: {
1093 address target = _cache->address_for_id(reloc_data[j]);
1094 // Add external address to global table
1095 int index = ExternalsRecorder::find_index(target);
1096 // Update index in relocation
1097 Relocation::add_jint(iter.data(), index);
1098 external_word_Relocation* reloc = (external_word_Relocation*)iter.reloc();
1099 assert(reloc->target() == target, "sanity");
1100 reloc->set_value(target); // Patch address in the code
1101 break;
1102 }
1103 case relocInfo::internal_word_type: {
1104 internal_word_Relocation* r = (internal_word_Relocation*)iter.reloc();
1105 r->fix_relocation_after_aot_load(aot_code_entry()->dumptime_content_start_addr(), code_blob->content_begin());
1106 break;
1107 }
1108 case relocInfo::section_word_type: {
1109 section_word_Relocation* r = (section_word_Relocation*)iter.reloc();
1110 r->fix_relocation_after_aot_load(aot_code_entry()->dumptime_content_start_addr(), code_blob->content_begin());
1111 break;
1112 }
1113 case relocInfo::post_call_nop_type:
1114 break;
1115 default:
1116 assert(false,"relocation %d unimplemented", (int)iter.type());
1117 break;
1118 }
1119 if (log.is_enabled()) {
1120 iter.print_current_on(&log);
1121 }
1122 j++;
1123 }
1124 assert(j == count, "sanity");
1125 }
1126
1127 bool AOTCodeCache::write_oop_map_set(CodeBlob& cb) {
1128 ImmutableOopMapSet* oopmaps = cb.oop_maps();
1129 int oopmaps_size = oopmaps->nr_of_bytes();
1130 if (!write_bytes(&oopmaps_size, sizeof(int))) {
1131 return false;
1132 }
1133 uint n = write_bytes(oopmaps, oopmaps->nr_of_bytes());
1134 if (n != (uint)oopmaps->nr_of_bytes()) {
1135 return false;
1136 }
1137 return true;
1138 }
1139
1140 ImmutableOopMapSet* AOTCodeReader::read_oop_map_set() {
1141 uint offset = read_position();
1142 int size = *(int *)addr(offset);
1143 offset += sizeof(int);
1144 ImmutableOopMapSet* oopmaps = (ImmutableOopMapSet *)addr(offset);
1145 offset += size;
1146 set_read_position(offset);
1147 return oopmaps;
1148 }
1149
1150 #ifndef PRODUCT
1151 bool AOTCodeCache::write_asm_remarks(CodeBlob& cb) {
1152 // Write asm remarks
1153 uint* count_ptr = (uint *)reserve_bytes(sizeof(uint));
1154 if (count_ptr == nullptr) {
1155 return false;
1156 }
1157 uint count = 0;
1158 bool result = cb.asm_remarks().iterate([&] (uint offset, const char* str) -> bool {
1159 log_trace(aot, codecache, stubs)("asm remark offset=%d, str='%s'", offset, str);
1160 uint n = write_bytes(&offset, sizeof(uint));
1161 if (n != sizeof(uint)) {
1162 return false;
1163 }
1164 const char* cstr = add_C_string(str);
1165 int id = _table->id_for_C_string((address)cstr);
1166 assert(id != -1, "asm remark string '%s' not found in AOTCodeAddressTable", str);
1167 n = write_bytes(&id, sizeof(int));
1168 if (n != sizeof(int)) {
1169 return false;
1170 }
1171 count += 1;
1172 return true;
1173 });
1174 *count_ptr = count;
1175 return result;
1176 }
1177
1178 void AOTCodeReader::read_asm_remarks(AsmRemarks& asm_remarks) {
1179 // Read asm remarks
1180 uint offset = read_position();
1181 uint count = *(uint *)addr(offset);
1182 offset += sizeof(uint);
1183 for (uint i = 0; i < count; i++) {
1184 uint remark_offset = *(uint *)addr(offset);
1185 offset += sizeof(uint);
1186 int remark_string_id = *(uint *)addr(offset);
1187 offset += sizeof(int);
1188 const char* remark = (const char*)_cache->address_for_C_string(remark_string_id);
1189 asm_remarks.insert(remark_offset, remark);
1190 }
1191 set_read_position(offset);
1192 }
1193
1194 bool AOTCodeCache::write_dbg_strings(CodeBlob& cb) {
1195 // Write dbg strings
1196 uint* count_ptr = (uint *)reserve_bytes(sizeof(uint));
1197 if (count_ptr == nullptr) {
1198 return false;
1199 }
1200 uint count = 0;
1201 bool result = cb.dbg_strings().iterate([&] (const char* str) -> bool {
1202 log_trace(aot, codecache, stubs)("dbg string=%s", str);
1203 const char* cstr = add_C_string(str);
1204 int id = _table->id_for_C_string((address)cstr);
1205 assert(id != -1, "db string '%s' not found in AOTCodeAddressTable", str);
1206 uint n = write_bytes(&id, sizeof(int));
1207 if (n != sizeof(int)) {
1208 return false;
1209 }
1210 count += 1;
1211 return true;
1212 });
1213 *count_ptr = count;
1214 return result;
1215 }
1216
1217 void AOTCodeReader::read_dbg_strings(DbgStrings& dbg_strings) {
1218 // Read dbg strings
1219 uint offset = read_position();
1220 uint count = *(uint *)addr(offset);
1221 offset += sizeof(uint);
1222 for (uint i = 0; i < count; i++) {
1223 int string_id = *(uint *)addr(offset);
1224 offset += sizeof(int);
1225 const char* str = (const char*)_cache->address_for_C_string(string_id);
1226 dbg_strings.insert(str);
1227 }
1228 set_read_position(offset);
1229 }
1230 #endif // PRODUCT
1231
1232 //======================= AOTCodeAddressTable ===============
1233
1234 // address table ids for generated routines, external addresses and C
1235 // string addresses are partitioned into positive integer ranges
1236 // defined by the following positive base and max values
1237 // i.e. [_extrs_base, _extrs_base + _extrs_max -1],
1238 // [_blobs_base, _blobs_base + _blobs_max -1],
1239 // ...
1240 // [_c_str_base, _c_str_base + _c_str_max -1],
1241
1242 #define _extrs_max 100
1243 #define _stubs_max 3
1244
1245 #define _shared_blobs_max 20
1246 #define _C1_blobs_max 10
1247 #define _blobs_max (_shared_blobs_max+_C1_blobs_max)
1248 #define _all_max (_extrs_max+_stubs_max+_blobs_max)
1249
1250 #define _extrs_base 0
1251 #define _stubs_base (_extrs_base + _extrs_max)
1252 #define _shared_blobs_base (_stubs_base + _stubs_max)
1253 #define _C1_blobs_base (_shared_blobs_base + _shared_blobs_max)
1254 #define _blobs_end (_shared_blobs_base + _blobs_max)
1255
1256 #define SET_ADDRESS(type, addr) \
1257 { \
1258 type##_addr[type##_length++] = (address) (addr); \
1259 assert(type##_length <= type##_max, "increase size"); \
1260 }
1261
1262 static bool initializing_extrs = false;
1263
1264 void AOTCodeAddressTable::init_extrs() {
1265 if (_extrs_complete || initializing_extrs) return; // Done already
1266
1267 assert(_blobs_end <= _all_max, "AOTCodeAddress table ranges need adjusting");
1268
1269 initializing_extrs = true;
1270 _extrs_addr = NEW_C_HEAP_ARRAY(address, _extrs_max, mtCode);
1271
1272 _extrs_length = 0;
1273
1274 // Record addresses of VM runtime methods
1275 SET_ADDRESS(_extrs, SharedRuntime::fixup_callers_callsite);
1276 SET_ADDRESS(_extrs, SharedRuntime::handle_wrong_method);
1277 SET_ADDRESS(_extrs, SharedRuntime::handle_wrong_method_abstract);
1278 SET_ADDRESS(_extrs, SharedRuntime::handle_wrong_method_ic_miss);
1279 #if defined(AARCH64) && !defined(ZERO)
1280 SET_ADDRESS(_extrs, JavaThread::aarch64_get_thread_helper);
1281 #endif
1282 {
1283 // Required by Shared blobs
1284 SET_ADDRESS(_extrs, Deoptimization::fetch_unroll_info);
1285 SET_ADDRESS(_extrs, Deoptimization::unpack_frames);
1286 SET_ADDRESS(_extrs, SafepointSynchronize::handle_polling_page_exception);
1287 SET_ADDRESS(_extrs, SharedRuntime::resolve_opt_virtual_call_C);
1288 SET_ADDRESS(_extrs, SharedRuntime::resolve_virtual_call_C);
1289 SET_ADDRESS(_extrs, SharedRuntime::resolve_static_call_C);
1290 SET_ADDRESS(_extrs, SharedRuntime::throw_StackOverflowError);
1291 SET_ADDRESS(_extrs, SharedRuntime::throw_delayed_StackOverflowError);
1292 SET_ADDRESS(_extrs, SharedRuntime::throw_AbstractMethodError);
1293 SET_ADDRESS(_extrs, SharedRuntime::throw_IncompatibleClassChangeError);
1294 SET_ADDRESS(_extrs, SharedRuntime::throw_NullPointerException_at_call);
1295 }
1296
1297 #ifdef COMPILER1
1298 {
1299 // Required by C1 blobs
1300 SET_ADDRESS(_extrs, static_cast<int (*)(oopDesc*)>(SharedRuntime::dtrace_object_alloc));
1301 SET_ADDRESS(_extrs, SharedRuntime::exception_handler_for_return_address);
1302 SET_ADDRESS(_extrs, SharedRuntime::register_finalizer);
1303 SET_ADDRESS(_extrs, Runtime1::is_instance_of);
1304 SET_ADDRESS(_extrs, Runtime1::exception_handler_for_pc);
1305 SET_ADDRESS(_extrs, Runtime1::check_abort_on_vm_exception);
1306 SET_ADDRESS(_extrs, Runtime1::new_instance);
1307 SET_ADDRESS(_extrs, Runtime1::counter_overflow);
1308 SET_ADDRESS(_extrs, Runtime1::new_type_array);
1309 SET_ADDRESS(_extrs, Runtime1::new_object_array);
1310 SET_ADDRESS(_extrs, Runtime1::new_multi_array);
1311 SET_ADDRESS(_extrs, Runtime1::throw_range_check_exception);
1312 SET_ADDRESS(_extrs, Runtime1::throw_index_exception);
1313 SET_ADDRESS(_extrs, Runtime1::throw_div0_exception);
1314 SET_ADDRESS(_extrs, Runtime1::throw_null_pointer_exception);
1315 SET_ADDRESS(_extrs, Runtime1::throw_array_store_exception);
1316 SET_ADDRESS(_extrs, Runtime1::throw_class_cast_exception);
1317 SET_ADDRESS(_extrs, Runtime1::throw_incompatible_class_change_error);
1318 SET_ADDRESS(_extrs, Runtime1::is_instance_of);
1319 SET_ADDRESS(_extrs, Runtime1::monitorenter);
1320 SET_ADDRESS(_extrs, Runtime1::monitorexit);
1321 SET_ADDRESS(_extrs, Runtime1::deoptimize);
1322 SET_ADDRESS(_extrs, Runtime1::access_field_patching);
1323 SET_ADDRESS(_extrs, Runtime1::move_klass_patching);
1324 SET_ADDRESS(_extrs, Runtime1::move_mirror_patching);
1325 SET_ADDRESS(_extrs, Runtime1::move_appendix_patching);
1326 SET_ADDRESS(_extrs, Runtime1::predicate_failed_trap);
1327 SET_ADDRESS(_extrs, Runtime1::unimplemented_entry);
1328 SET_ADDRESS(_extrs, Thread::current);
1329 SET_ADDRESS(_extrs, CompressedKlassPointers::base_addr());
1330 #ifndef PRODUCT
1331 SET_ADDRESS(_extrs, os::breakpoint);
1332 #endif
1333 }
1334 #endif
1335
1336 #ifdef COMPILER2
1337 {
1338 // Required by C2 blobs
1339 SET_ADDRESS(_extrs, Deoptimization::uncommon_trap);
1340 SET_ADDRESS(_extrs, OptoRuntime::handle_exception_C);
1341 SET_ADDRESS(_extrs, OptoRuntime::new_instance_C);
1342 SET_ADDRESS(_extrs, OptoRuntime::new_array_C);
1343 SET_ADDRESS(_extrs, OptoRuntime::new_array_nozero_C);
1344 SET_ADDRESS(_extrs, OptoRuntime::multianewarray2_C);
1345 SET_ADDRESS(_extrs, OptoRuntime::multianewarray3_C);
1346 SET_ADDRESS(_extrs, OptoRuntime::multianewarray4_C);
1347 SET_ADDRESS(_extrs, OptoRuntime::multianewarray5_C);
1348 SET_ADDRESS(_extrs, OptoRuntime::multianewarrayN_C);
1349 #if INCLUDE_JVMTI
1350 SET_ADDRESS(_extrs, SharedRuntime::notify_jvmti_vthread_start);
1351 SET_ADDRESS(_extrs, SharedRuntime::notify_jvmti_vthread_end);
1352 SET_ADDRESS(_extrs, SharedRuntime::notify_jvmti_vthread_mount);
1353 SET_ADDRESS(_extrs, SharedRuntime::notify_jvmti_vthread_unmount);
1354 #endif
1355 SET_ADDRESS(_extrs, OptoRuntime::complete_monitor_locking_C);
1356 SET_ADDRESS(_extrs, OptoRuntime::monitor_notify_C);
1357 SET_ADDRESS(_extrs, OptoRuntime::monitor_notifyAll_C);
1358 SET_ADDRESS(_extrs, OptoRuntime::rethrow_C);
1359 SET_ADDRESS(_extrs, OptoRuntime::slow_arraycopy_C);
1360 SET_ADDRESS(_extrs, OptoRuntime::register_finalizer_C);
1361 #if defined(AARCH64)
1362 SET_ADDRESS(_extrs, JavaThread::verify_cross_modify_fence_failure);
1363 #endif // AARCH64
1364 }
1365 #endif // COMPILER2
1366
1367 #if INCLUDE_G1GC
1368 SET_ADDRESS(_extrs, G1BarrierSetRuntime::write_ref_field_post_entry);
1369 SET_ADDRESS(_extrs, G1BarrierSetRuntime::write_ref_field_pre_entry);
1370 #endif
1371 #if INCLUDE_SHENANDOAHGC
1372 SET_ADDRESS(_extrs, ShenandoahRuntime::write_barrier_pre);
1373 SET_ADDRESS(_extrs, ShenandoahRuntime::load_reference_barrier_phantom);
1374 SET_ADDRESS(_extrs, ShenandoahRuntime::load_reference_barrier_phantom_narrow);
1375 #endif
1376 #if INCLUDE_ZGC
1377 SET_ADDRESS(_extrs, ZBarrierSetRuntime::load_barrier_on_phantom_oop_field_preloaded_addr());
1378 #if defined(AMD64)
1379 SET_ADDRESS(_extrs, &ZPointerLoadShift);
1380 #endif
1381 #endif
1382 #ifndef ZERO
1383 #if defined(AMD64) || defined(AARCH64) || defined(RISCV64)
1384 SET_ADDRESS(_extrs, MacroAssembler::debug64);
1385 #endif
1386 #endif // ZERO
1387
1388 _extrs_complete = true;
1389 log_debug(aot, codecache, init)("External addresses recorded");
1390 }
1391
1392 static bool initializing_early_stubs = false;
1393
1394 void AOTCodeAddressTable::init_early_stubs() {
1395 if (_complete || initializing_early_stubs) return; // Done already
1396 initializing_early_stubs = true;
1397 _stubs_addr = NEW_C_HEAP_ARRAY(address, _stubs_max, mtCode);
1398 _stubs_length = 0;
1399 SET_ADDRESS(_stubs, StubRoutines::forward_exception_entry());
1400
1401 {
1402 // Required by C1 blobs
1403 #if defined(AMD64) && !defined(ZERO)
1404 SET_ADDRESS(_stubs, StubRoutines::x86::double_sign_flip());
1405 SET_ADDRESS(_stubs, StubRoutines::x86::d2l_fixup());
1406 #endif // AMD64
1407 }
1408
1409 _early_stubs_complete = true;
1410 log_info(aot, codecache, init)("Early stubs recorded");
1411 }
1412
1413 static bool initializing_shared_blobs = false;
1414
1415 void AOTCodeAddressTable::init_shared_blobs() {
1416 if (_complete || initializing_shared_blobs) return; // Done already
1417 initializing_shared_blobs = true;
1418 address* blobs_addr = NEW_C_HEAP_ARRAY(address, _blobs_max, mtCode);
1419
1420 // Divide _shared_blobs_addr array to chunks because they could be initialized in parrallel
1421 _shared_blobs_addr = blobs_addr;
1422 _C1_blobs_addr = _shared_blobs_addr + _shared_blobs_max;
1423
1424 _shared_blobs_length = 0;
1425 _C1_blobs_length = 0;
1426
1427 // clear the address table
1428 memset(blobs_addr, 0, sizeof(address)* _blobs_max);
1429
1430 // Record addresses of generated code blobs
1431 SET_ADDRESS(_shared_blobs, SharedRuntime::get_handle_wrong_method_stub());
1432 SET_ADDRESS(_shared_blobs, SharedRuntime::get_ic_miss_stub());
1433 SET_ADDRESS(_shared_blobs, SharedRuntime::deopt_blob()->unpack());
1434 SET_ADDRESS(_shared_blobs, SharedRuntime::deopt_blob()->unpack_with_exception());
1435 SET_ADDRESS(_shared_blobs, SharedRuntime::deopt_blob()->unpack_with_reexecution());
1436 SET_ADDRESS(_shared_blobs, SharedRuntime::deopt_blob()->unpack_with_exception_in_tls());
1437 #if INCLUDE_JVMCI
1438 if (EnableJVMCI) {
1439 SET_ADDRESS(_shared_blobs, SharedRuntime::deopt_blob()->uncommon_trap());
1440 SET_ADDRESS(_shared_blobs, SharedRuntime::deopt_blob()->implicit_exception_uncommon_trap());
1441 }
1442 #endif
1443
1444 _shared_blobs_complete = true;
1445 log_debug(aot, codecache, init)("Early shared blobs recorded");
1446 _complete = true;
1447 }
1448
1449 void AOTCodeAddressTable::init_early_c1() {
1450 #ifdef COMPILER1
1451 // Runtime1 Blobs
1452 StubId id = StubInfo::stub_base(StubGroup::C1);
1453 // include forward_exception in range we publish
1454 StubId limit = StubInfo::next(StubId::c1_forward_exception_id);
1455 for (; id != limit; id = StubInfo::next(id)) {
1456 if (Runtime1::blob_for(id) == nullptr) {
1457 log_info(aot, codecache, init)("C1 blob %s is missing", Runtime1::name_for(id));
1458 continue;
1459 }
1460 if (Runtime1::entry_for(id) == nullptr) {
1461 log_info(aot, codecache, init)("C1 blob %s is missing entry", Runtime1::name_for(id));
1462 continue;
1463 }
1464 address entry = Runtime1::entry_for(id);
1465 SET_ADDRESS(_C1_blobs, entry);
1466 }
1467 #endif // COMPILER1
1468 assert(_C1_blobs_length <= _C1_blobs_max, "increase _C1_blobs_max to %d", _C1_blobs_length);
1469 _early_c1_complete = true;
1470 }
1471
1472 #undef SET_ADDRESS
1473
1474 AOTCodeAddressTable::~AOTCodeAddressTable() {
1475 if (_extrs_addr != nullptr) {
1476 FREE_C_HEAP_ARRAY(address, _extrs_addr);
1477 }
1478 if (_stubs_addr != nullptr) {
1479 FREE_C_HEAP_ARRAY(address, _stubs_addr);
1480 }
1481 if (_shared_blobs_addr != nullptr) {
1482 FREE_C_HEAP_ARRAY(address, _shared_blobs_addr);
1483 }
1484 }
1485
1486 #ifdef PRODUCT
1487 #define MAX_STR_COUNT 200
1488 #else
1489 #define MAX_STR_COUNT 500
1490 #endif
1491 #define _c_str_max MAX_STR_COUNT
1492 static const int _c_str_base = _all_max;
1493
1494 static const char* _C_strings_in[MAX_STR_COUNT] = {nullptr}; // Incoming strings
1495 static const char* _C_strings[MAX_STR_COUNT] = {nullptr}; // Our duplicates
1496 static int _C_strings_count = 0;
1497 static int _C_strings_s[MAX_STR_COUNT] = {0};
1498 static int _C_strings_id[MAX_STR_COUNT] = {0};
1499 static int _C_strings_used = 0;
1500
1501 void AOTCodeCache::load_strings() {
1502 uint strings_count = _load_header->strings_count();
1503 if (strings_count == 0) {
1504 return;
1505 }
1506 uint strings_offset = _load_header->strings_offset();
1507 uint* string_lengths = (uint*)addr(strings_offset);
1508 strings_offset += (strings_count * sizeof(uint));
1509 uint strings_size = _load_header->entries_offset() - strings_offset;
1510 // We have to keep cached strings longer than _cache buffer
1511 // because they are refernced from compiled code which may
1512 // still be executed on VM exit after _cache is freed.
1513 char* p = NEW_C_HEAP_ARRAY(char, strings_size+1, mtCode);
1514 memcpy(p, addr(strings_offset), strings_size);
1515 _C_strings_buf = p;
1516 assert(strings_count <= MAX_STR_COUNT, "sanity");
1517 for (uint i = 0; i < strings_count; i++) {
1518 _C_strings[i] = p;
1519 uint len = string_lengths[i];
1520 _C_strings_s[i] = i;
1521 _C_strings_id[i] = i;
1522 p += len;
1523 }
1524 assert((uint)(p - _C_strings_buf) <= strings_size, "(" INTPTR_FORMAT " - " INTPTR_FORMAT ") = %d > %d ", p2i(p), p2i(_C_strings_buf), (uint)(p - _C_strings_buf), strings_size);
1525 _C_strings_count = strings_count;
1526 _C_strings_used = strings_count;
1527 log_debug(aot, codecache, init)(" Loaded %d C strings of total length %d at offset %d from AOT Code Cache", _C_strings_count, strings_size, strings_offset);
1528 }
1529
1530 int AOTCodeCache::store_strings() {
1531 if (_C_strings_used > 0) {
1532 MutexLocker ml(AOTCodeCStrings_lock, Mutex::_no_safepoint_check_flag);
1533 uint offset = _write_position;
1534 uint length = 0;
1535 uint* lengths = (uint *)reserve_bytes(sizeof(uint) * _C_strings_used);
1536 if (lengths == nullptr) {
1537 return -1;
1538 }
1539 for (int i = 0; i < _C_strings_used; i++) {
1540 const char* str = _C_strings[_C_strings_s[i]];
1541 uint len = (uint)strlen(str) + 1;
1542 length += len;
1543 assert(len < 1000, "big string: %s", str);
1544 lengths[i] = len;
1545 uint n = write_bytes(str, len);
1546 if (n != len) {
1547 return -1;
1548 }
1549 }
1550 log_debug(aot, codecache, exit)(" Wrote %d C strings of total length %d at offset %d to AOT Code Cache",
1551 _C_strings_used, length, offset);
1552 }
1553 return _C_strings_used;
1554 }
1555
1556 const char* AOTCodeCache::add_C_string(const char* str) {
1557 if (is_on_for_dump() && str != nullptr) {
1558 MutexLocker ml(AOTCodeCStrings_lock, Mutex::_no_safepoint_check_flag);
1559 AOTCodeAddressTable* table = addr_table();
1560 if (table != nullptr) {
1561 return table->add_C_string(str);
1562 }
1563 }
1564 return str;
1565 }
1566
1567 const char* AOTCodeAddressTable::add_C_string(const char* str) {
1568 if (_extrs_complete) {
1569 // Check previous strings address
1570 for (int i = 0; i < _C_strings_count; i++) {
1571 if (_C_strings_in[i] == str) {
1572 return _C_strings[i]; // Found previous one - return our duplicate
1573 } else if (strcmp(_C_strings[i], str) == 0) {
1574 return _C_strings[i];
1575 }
1576 }
1577 // Add new one
1578 if (_C_strings_count < MAX_STR_COUNT) {
1579 // Passed in string can be freed and used space become inaccessible.
1580 // Keep original address but duplicate string for future compare.
1581 _C_strings_id[_C_strings_count] = -1; // Init
1582 _C_strings_in[_C_strings_count] = str;
1583 const char* dup = os::strdup(str);
1584 _C_strings[_C_strings_count++] = dup;
1585 log_trace(aot, codecache, stringtable)("add_C_string: [%d] " INTPTR_FORMAT " '%s'", _C_strings_count, p2i(dup), dup);
1586 return dup;
1587 } else {
1588 assert(false, "Number of C strings >= MAX_STR_COUNT");
1589 }
1590 }
1591 return str;
1592 }
1593
1594 int AOTCodeAddressTable::id_for_C_string(address str) {
1595 if (str == nullptr) {
1596 return -1;
1597 }
1598 MutexLocker ml(AOTCodeCStrings_lock, Mutex::_no_safepoint_check_flag);
1599 for (int i = 0; i < _C_strings_count; i++) {
1600 if (_C_strings[i] == (const char*)str) { // found
1601 int id = _C_strings_id[i];
1602 if (id >= 0) {
1603 assert(id < _C_strings_used, "%d >= %d", id , _C_strings_used);
1604 return id; // Found recorded
1605 }
1606 // Not found in recorded, add new
1607 id = _C_strings_used++;
1608 _C_strings_s[id] = i;
1609 _C_strings_id[i] = id;
1610 return id;
1611 }
1612 }
1613 return -1;
1614 }
1615
1616 address AOTCodeAddressTable::address_for_C_string(int idx) {
1617 assert(idx < _C_strings_count, "sanity");
1618 return (address)_C_strings[idx];
1619 }
1620
1621 static int search_address(address addr, address* table, uint length) {
1622 for (int i = 0; i < (int)length; i++) {
1623 if (table[i] == addr) {
1624 return i;
1625 }
1626 }
1627 return BAD_ADDRESS_ID;
1628 }
1629
1630 address AOTCodeAddressTable::address_for_id(int idx) {
1631 assert(_extrs_complete, "AOT Code Cache VM runtime addresses table is not complete");
1632 if (idx == -1) {
1633 return (address)-1;
1634 }
1635 uint id = (uint)idx;
1636 // special case for symbols based relative to os::init
1637 if (id > (_c_str_base + _c_str_max)) {
1638 return (address)os::init + idx;
1639 }
1640 if (idx < 0) {
1641 fatal("Incorrect id %d for AOT Code Cache addresses table", id);
1642 return nullptr;
1643 }
1644 // no need to compare unsigned id against 0
1645 if (/* id >= _extrs_base && */ id < _extrs_length) {
1646 return _extrs_addr[id - _extrs_base];
1647 }
1648 if (id >= _stubs_base && id < _stubs_base + _stubs_length) {
1649 return _stubs_addr[id - _stubs_base];
1650 }
1651 if (id >= _shared_blobs_base && id < _shared_blobs_base + _shared_blobs_length) {
1652 return _shared_blobs_addr[id - _shared_blobs_base];
1653 }
1654 if (id >= _C1_blobs_base && id < _C1_blobs_base + _C1_blobs_length) {
1655 return _C1_blobs_addr[id - _C1_blobs_base];
1656 }
1657 if (id >= _c_str_base && id < (_c_str_base + (uint)_C_strings_count)) {
1658 return address_for_C_string(id - _c_str_base);
1659 }
1660 fatal("Incorrect id %d for AOT Code Cache addresses table", id);
1661 return nullptr;
1662 }
1663
1664 int AOTCodeAddressTable::id_for_address(address addr, RelocIterator reloc, CodeBlob* code_blob) {
1665 assert(_extrs_complete, "AOT Code Cache VM runtime addresses table is not complete");
1666 int id = -1;
1667 if (addr == (address)-1) { // Static call stub has jump to itself
1668 return id;
1669 }
1670 // Seach for C string
1671 id = id_for_C_string(addr);
1672 if (id >= 0) {
1673 return id + _c_str_base;
1674 }
1675 if (StubRoutines::contains(addr)) {
1676 // Search in stubs
1677 id = search_address(addr, _stubs_addr, _stubs_length);
1678 if (id < 0) {
1679 StubCodeDesc* desc = StubCodeDesc::desc_for(addr);
1680 if (desc == nullptr) {
1681 desc = StubCodeDesc::desc_for(addr + frame::pc_return_offset);
1682 }
1683 const char* sub_name = (desc != nullptr) ? desc->name() : "<unknown>";
1684 assert(false, "Address " INTPTR_FORMAT " for Stub:%s is missing in AOT Code Cache addresses table", p2i(addr), sub_name);
1685 } else {
1686 return id + _stubs_base;
1687 }
1688 } else {
1689 CodeBlob* cb = CodeCache::find_blob(addr);
1690 if (cb != nullptr) {
1691 // Search in code blobs
1692 int id_base = _shared_blobs_base;
1693 id = search_address(addr, _shared_blobs_addr, _blobs_max);
1694 if (id < 0) {
1695 assert(false, "Address " INTPTR_FORMAT " for Blob:%s is missing in AOT Code Cache addresses table", p2i(addr), cb->name());
1696 } else {
1697 return id_base + id;
1698 }
1699 } else {
1700 // Search in runtime functions
1701 id = search_address(addr, _extrs_addr, _extrs_length);
1702 if (id < 0) {
1703 ResourceMark rm;
1704 const int buflen = 1024;
1705 char* func_name = NEW_RESOURCE_ARRAY(char, buflen);
1706 int offset = 0;
1707 if (os::dll_address_to_function_name(addr, func_name, buflen, &offset)) {
1708 if (offset > 0) {
1709 // Could be address of C string
1710 uint dist = (uint)pointer_delta(addr, (address)os::init, 1);
1711 log_debug(aot, codecache)("Address " INTPTR_FORMAT " (offset %d) for runtime target '%s' is missing in AOT Code Cache addresses table",
1712 p2i(addr), dist, (const char*)addr);
1713 assert(dist > (uint)(_all_max + MAX_STR_COUNT), "change encoding of distance");
1714 return dist;
1715 }
1716 #ifdef ASSERT
1717 reloc.print_current_on(tty);
1718 code_blob->print_on(tty);
1719 code_blob->print_code_on(tty);
1720 assert(false, "Address " INTPTR_FORMAT " for runtime target '%s+%d' is missing in AOT Code Cache addresses table", p2i(addr), func_name, offset);
1721 #endif
1722 } else {
1723 #ifdef ASSERT
1724 reloc.print_current_on(tty);
1725 code_blob->print_on(tty);
1726 code_blob->print_code_on(tty);
1727 os::find(addr, tty);
1728 assert(false, "Address " INTPTR_FORMAT " for <unknown>/('%s') is missing in AOT Code Cache addresses table", p2i(addr), (const char*)addr);
1729 #endif
1730 }
1731 } else {
1732 return _extrs_base + id;
1733 }
1734 }
1735 }
1736 return id;
1737 }
1738
1739 // This is called after initialize() but before init2()
1740 // and _cache is not set yet.
1741 void AOTCodeCache::print_on(outputStream* st) {
1742 if (opened_cache != nullptr && opened_cache->for_use()) {
1743 st->print_cr("\nAOT Code Cache");
1744 uint count = opened_cache->_load_header->entries_count();
1745 uint* search_entries = (uint*)opened_cache->addr(opened_cache->_load_header->entries_offset()); // [id, index]
1746 AOTCodeEntry* load_entries = (AOTCodeEntry*)(search_entries + 2 * count);
1747
1748 for (uint i = 0; i < count; i++) {
1749 // Use search_entries[] to order ouput
1750 int index = search_entries[2*i + 1];
1751 AOTCodeEntry* entry = &(load_entries[index]);
1752
1753 uint entry_position = entry->offset();
1754 uint name_offset = entry->name_offset() + entry_position;
1755 const char* saved_name = opened_cache->addr(name_offset);
1756
1757 st->print_cr("%4u: %10s idx:%4u Id:%u size=%u '%s'",
1758 i, aot_code_entry_kind_name[entry->kind()], index, entry->id(), entry->size(), saved_name);
1759 }
1760 }
1761 }