1 /*
2 * Copyright (c) 2017, 2026, 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 #include "cds/archiveUtils.hpp"
26 #include "cds/cdsConfig.hpp"
27 #include "classfile/vmSymbols.hpp"
28 #include "code/codeCache.hpp"
29 #include "gc/shared/barrierSet.hpp"
30 #include "gc/shared/collectedHeap.inline.hpp"
31 #include "gc/shared/gcLocker.inline.hpp"
32 #include "interpreter/interpreter.hpp"
33 #include "logging/log.hpp"
34 #include "memory/metadataFactory.hpp"
35 #include "memory/metaspaceClosure.hpp"
36 #include "oops/access.hpp"
37 #include "oops/arrayKlass.hpp"
38 #include "oops/compressedOops.inline.hpp"
39 #include "oops/fieldStreams.inline.hpp"
40 #include "oops/flatArrayKlass.hpp"
41 #include "oops/inlineKlass.inline.hpp"
42 #include "oops/instanceKlass.inline.hpp"
43 #include "oops/layoutKind.hpp"
44 #include "oops/method.hpp"
45 #include "oops/objArrayKlass.hpp"
46 #include "oops/oop.inline.hpp"
47 #include "oops/oopsHierarchy.hpp"
48 #include "oops/refArrayKlass.hpp"
49 #include "runtime/fieldDescriptor.inline.hpp"
50 #include "runtime/handles.inline.hpp"
51 #include "runtime/interfaceSupport.inline.hpp"
52 #include "runtime/registerMap.hpp"
53 #include "runtime/safepointVerifiers.hpp"
54 #include "runtime/sharedRuntime.hpp"
55 #include "runtime/signature.hpp"
56 #include "runtime/thread.inline.hpp"
57 #include "utilities/copy.hpp"
58 #include "utilities/stringUtils.hpp"
59
60 InlineKlass::Members::Members()
61 : _extended_sig(nullptr),
62 _return_regs(nullptr),
63 _pack_handler(nullptr),
64 _pack_handler_jobject(nullptr),
65 _unpack_handler(nullptr),
66 _null_reset_value_offset(0),
67 _payload_offset(-1),
68 _payload_size_in_bytes(-1),
69 _payload_alignment(-1),
70 _null_free_non_atomic_size_in_bytes(-1),
71 _null_free_non_atomic_alignment(-1),
72 _null_free_atomic_size_in_bytes(-1),
73 _nullable_atomic_size_in_bytes(-1),
74 _nullable_non_atomic_size_in_bytes(-1),
75 _null_marker_offset(-1),
76 _fast_acmp_offset(-1),
77 _fast_acmp_mask(0) {
78 }
79
80 InlineKlass::InlineKlass() {
81 assert(CDSConfig::is_dumping_archive() || UseSharedSpaces, "only for CDS");
82 }
83
84 // Constructor
85 InlineKlass::InlineKlass(const ClassFileParser& parser)
86 : InstanceKlass(parser, InlineKlass::Kind, markWord::inline_type_prototype()) {
87 assert(is_inline_klass(), "sanity");
88 assert(prototype_header().is_inline_type(), "sanity");
89
90 // Set up the offset to the members of this klass
91 _adr_inline_klass_members = calculate_members_address();
92
93 // Placement install the members
94 new (_adr_inline_klass_members) Members();
95
96 // Sanity check construction of the members
97 assert(pack_handler() == nullptr, "pack handler not null");
98 }
99
100 address InlineKlass::calculate_members_address() const {
101 // The members are placed after all other contents inherited from the InstanceKlass
102 return end_of_instance_klass();
103 }
104
105 oop InlineKlass::null_reset_value() const {
106 assert(is_initialized() || is_being_initialized() || is_in_error_state(), "null reset value is set at the beginning of initialization");
107 oop val = java_mirror()->obj_field_acquire(null_reset_value_offset());
108 assert(val != nullptr, "Sanity check");
109 return val;
110 }
111
112 void InlineKlass::set_null_reset_value(oop val) {
113 assert(val != nullptr, "Sanity check");
114 assert(oopDesc::is_oop(val), "Sanity check");
115 assert(val->is_inline_type(), "Sanity check");
116 assert(val->klass() == this, "sanity check");
117 java_mirror()->obj_field_put(null_reset_value_offset(), val);
118 }
119
120 inlineOop InlineKlass::allocate_instance(TRAPS) {
121 inlineOop oop = (inlineOop)InstanceKlass::allocate_instance(CHECK_NULL);
122 assert(oop->mark().is_inline_type(), "Expected inline type");
123 return oop;
124 }
125
126 int InlineKlass::nonstatic_oop_count() {
127 int oops = 0;
128 int map_count = nonstatic_oop_map_count();
129 OopMapBlock* block = start_of_nonstatic_oop_maps();
130 OopMapBlock* end = block + map_count;
131 while (block != end) {
132 oops += block->count();
133 block++;
134 }
135 return oops;
136 }
137
138 // Arrays of...
139
140 bool InlineKlass::maybe_flat_in_array() {
141 if (!UseArrayFlattening) {
142 return false;
143 }
144 // Too many embedded oops
145 if ((FlatArrayElementMaxOops >= 0) && (nonstatic_oop_count() > FlatArrayElementMaxOops)) {
146 return false;
147 }
148 // No flat layout?
149 if (!has_nullable_atomic_layout() && !has_null_free_atomic_layout() && !has_null_free_non_atomic_layout()) {
150 return false;
151 }
152 return true;
153 }
154
155 // Inline type arguments are not passed by reference, instead each
156 // field of the inline type is passed as an argument. This helper
157 // function collects the flat field (recursively)
158 // in a list. Included with the field's type is
159 // the offset of each field in the inline type: i2c and c2i adapters
160 // need that to load or store fields. Finally, the list of fields is
161 // sorted in order of increasing offsets: the adapters and the
162 // compiled code need to agree upon the order of fields.
163 //
164 // The list of basic types that is returned starts with a T_METADATA
165 // and ends with an extra T_VOID. T_METADATA/T_VOID pairs are used as
166 // delimiters. Every entry between the two is a field of the inline
167 // type. If there's an embedded inline type in the list, it also starts
168 // with a T_METADATA and ends with a T_VOID. This is so we can
169 // generate a unique fingerprint for the method's adapters and we can
170 // generate the list of basic types from the interpreter point of view
171 // (inline types passed as reference: iterate on the list until a
172 // T_METADATA, drop everything until and including the closing
173 // T_VOID) or the compiler point of view (each field of the inline
174 // types is an argument: drop all T_METADATA/T_VOID from the list).
175 //
176 // Value classes could also have fields in abstract super value classes.
177 // Use a HierarchicalFieldStream to get them as well.
178 int InlineKlass::collect_fields(GrowableArray<SigEntry>* sig, int base_off, int null_marker_offset) {
179 int count = 0;
180 SigEntry::add_entry(sig, T_METADATA, name(), base_off);
181 for (TopDownHierarchicalNonStaticFieldStreamBase fs(this); !fs.done(); fs.next()) {
182 assert(!fs.access_flags().is_static(), "TopDownHierarchicalNonStaticFieldStreamBase should not let static fields pass.");
183 int offset = base_off + fs.offset() - (base_off > 0 ? payload_offset() : 0);
184 InstanceKlass* field_holder = fs.field_descriptor().field_holder();
185 if (fs.is_flat()) {
186 // Resolve klass of flat field and recursively collect fields
187 int field_null_marker_offset = -1;
188 if (!fs.is_null_free_inline_type()) {
189 field_null_marker_offset = base_off + fs.null_marker_offset() - (base_off > 0 ? payload_offset() : 0);
190 }
191 Klass* vk = field_holder->get_inline_type_field_klass(fs.index());
192 count += InlineKlass::cast(vk)->collect_fields(sig, offset, field_null_marker_offset);
193 } else {
194 BasicType bt = Signature::basic_type(fs.signature());
195 SigEntry::add_entry(sig, bt, fs.name(), offset);
196 count += type2size[bt];
197 }
198 }
199 int offset = base_off + size_helper()*HeapWordSize - (base_off > 0 ? payload_offset() : 0);
200 // Null markers are no real fields, add them manually at the end (C2 relies on this) of the flat fields
201 if (null_marker_offset != -1) {
202 SigEntry::add_null_marker(sig, name(), null_marker_offset);
203 count++;
204 }
205 SigEntry::add_entry(sig, T_VOID, name(), offset);
206 assert(sig->at(0)._bt == T_METADATA && sig->at(sig->length()-1)._bt == T_VOID, "broken structure");
207 return count;
208 }
209
210 // Support for the scalarized calling convention.
211 //
212 // For arguments, an inline type can be passed in scalarized form instead of as a single
213 // oop: the calling convention uses an optional buffer oop together with a null marker,
214 // followed by the field values, assigned to the normal argument registers and stack slots.
215 // See CompiledEntrySignature::compute_calling_conventions.
216 //
217 // For returns, an inline type is returned in scalarized form via multiple return registers:
218 // the first word is a tri-state value (null, tagged InlineKlass*, or oop) and the remaining
219 // registers carry the field values.
220 void InlineKlass::initialize_calling_convention(TRAPS) {
221 // Because the pack and unpack handler addresses need to be loadable from generated code,
222 // they are stored at a fixed offset in the klass metadata. Since inline type klasses do
223 // not have a vtable, the vtable offset is used to store these addresses.
224 if (InlineTypeReturnedAsFields || InlineTypePassFieldsAsArgs) {
225 ResourceMark rm;
226 GrowableArray<SigEntry> sig_vk;
227 int nb_fields = collect_fields(&sig_vk);
228 if (*PrintInlineKlassFields != '\0') {
229 const char* class_name_str = _name->as_C_string();
230 if (StringUtils::class_list_match(PrintInlineKlassFields, class_name_str)) {
231 ttyLocker ttyl;
232 tty->print_cr("Fields of InlineKlass: %s", class_name_str);
233 for (const SigEntry& entry : sig_vk) {
234 tty->print(" %s: %s+%d", entry._name->as_C_string(), type2name(entry._bt), entry._offset);
235 if (entry._null_marker) {
236 tty->print(" (null marker)");
237 }
238 if (entry._vt_oop) {
239 tty->print(" (VT OOP)");
240 }
241 tty->print_cr("");
242 }
243 }
244 }
245 Array<SigEntry>* extended_sig = MetadataFactory::new_array<SigEntry>(class_loader_data(), sig_vk.length(), CHECK);
246 set_extended_sig(extended_sig);
247 for (int i = 0; i < sig_vk.length(); i++) {
248 extended_sig->at_put(i, sig_vk.at(i));
249 }
250 if (can_be_returned_as_fields(/* init= */ true)) {
251 nb_fields++;
252 BasicType* sig_bt = NEW_RESOURCE_ARRAY(BasicType, nb_fields);
253 sig_bt[0] = T_METADATA;
254 SigEntry::fill_sig_bt(&sig_vk, sig_bt+1);
255 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, nb_fields);
256 int total = SharedRuntime::java_return_convention(sig_bt, regs, nb_fields);
257
258 if (total > 0) {
259 Array<VMRegPair>* return_regs = MetadataFactory::new_array<VMRegPair>(class_loader_data(), nb_fields, CHECK);
260 set_return_regs(return_regs);
261 for (int i = 0; i < nb_fields; i++) {
262 return_regs->at_put(i, regs[i]);
263 }
264
265 BufferedInlineTypeBlob* buffered_blob = SharedRuntime::generate_buffered_inline_type_adapter(this);
266 if (buffered_blob == nullptr) {
267 THROW_MSG(vmSymbols::java_lang_OutOfMemoryError(), "Out of space in CodeCache for adapters");
268 }
269 set_pack_handler(buffered_blob->pack_fields());
270 set_pack_handler_jobject(buffered_blob->pack_fields_jobject());
271 set_unpack_handler(buffered_blob->unpack_fields());
272 assert(CodeCache::find_blob(pack_handler()) == buffered_blob, "lost track of blob");
273 assert(can_be_returned_as_fields(), "sanity");
274 }
275 }
276 if (!can_be_returned_as_fields() && !can_be_passed_as_fields()) {
277 MetadataFactory::free_array<SigEntry>(class_loader_data(), extended_sig);
278 set_extended_sig(nullptr);
279 assert(return_regs() == nullptr, "sanity");
280 }
281 }
282 }
283
284 void InlineKlass::deallocate_contents(ClassLoaderData* loader_data) {
285 if (extended_sig() != nullptr) {
286 MetadataFactory::free_array<SigEntry>(loader_data, members()._extended_sig);
287 set_extended_sig(nullptr);
288 }
289 if (return_regs() != nullptr) {
290 MetadataFactory::free_array<VMRegPair>(loader_data, members()._return_regs);
291 set_return_regs(nullptr);
292 }
293 cleanup_blobs();
294 InstanceKlass::deallocate_contents(loader_data);
295 }
296
297 void InlineKlass::cleanup(InlineKlass* ik) {
298 ik->cleanup_blobs();
299 }
300
301 void InlineKlass::cleanup_blobs() {
302 if (pack_handler() != nullptr) {
303 CodeBlob* buffered_blob = CodeCache::find_blob(pack_handler());
304 assert(buffered_blob->is_buffered_inline_type_blob(), "bad blob type");
305 BufferBlob::free((BufferBlob*)buffered_blob);
306 set_pack_handler(nullptr);
307 set_pack_handler_jobject(nullptr);
308 set_unpack_handler(nullptr);
309 }
310 }
311
312 // Can this inline type be passed as multiple values?
313 bool InlineKlass::can_be_passed_as_fields() const {
314 return InlineTypePassFieldsAsArgs;
315 }
316
317 // Can this inline type be returned as multiple values?
318 bool InlineKlass::can_be_returned_as_fields(bool init) const {
319 return InlineTypeReturnedAsFields && (init || return_regs() != nullptr);
320 }
321
322 // Create handles for all oop fields returned in registers that are going to be live across a safepoint
323 void InlineKlass::save_oop_fields(const RegisterMap& reg_map, GrowableArray<Handle>& handles) const {
324 Thread* thread = Thread::current();
325 const Array<SigEntry>* sig_vk = extended_sig();
326 const Array<VMRegPair>* regs = return_regs();
327 int j = 1;
328
329 for (int i = 0; i < sig_vk->length(); i++) {
330 BasicType bt = sig_vk->at(i)._bt;
331 if (bt == T_OBJECT || bt == T_ARRAY) {
332 VMRegPair pair = regs->at(j);
333 oop* loc = (oop*)reg_map.location(pair.first(), nullptr);
334 guarantee(loc != nullptr, "bad register save location");
335 oop o = *loc;
336 assert(oopDesc::is_oop_or_null(o), "Bad oop value: " PTR_FORMAT, p2i(o));
337 handles.push(Handle(thread, o));
338 }
339 if (bt == T_METADATA) {
340 continue;
341 }
342 if (bt == T_VOID &&
343 sig_vk->at(i-1)._bt != T_LONG &&
344 sig_vk->at(i-1)._bt != T_DOUBLE) {
345 continue;
346 }
347 j++;
348 }
349 assert(j == regs->length(), "missed a field?");
350 }
351
352 // Update oop fields in registers from handles after a safepoint
353 void InlineKlass::restore_oop_results(RegisterMap& reg_map, GrowableArray<Handle>& handles) const {
354 assert(InlineTypeReturnedAsFields, "Inline types should never be returned as fields");
355 const Array<SigEntry>* sig_vk = extended_sig();
356 const Array<VMRegPair>* regs = return_regs();
357 assert(regs != nullptr, "inconsistent");
358
359 int j = 1;
360 int k = 0;
361 for (int i = 0; i < sig_vk->length(); i++) {
362 BasicType bt = sig_vk->at(i)._bt;
363 if (bt == T_OBJECT || bt == T_ARRAY) {
364 VMRegPair pair = regs->at(j);
365 oop* loc = (oop*)reg_map.location(pair.first(), nullptr);
366 guarantee(loc != nullptr, "bad register save location");
367 *loc = handles.at(k++)();
368 }
369 if (bt == T_METADATA) {
370 continue;
371 }
372 if (bt == T_VOID &&
373 sig_vk->at(i-1)._bt != T_LONG &&
374 sig_vk->at(i-1)._bt != T_DOUBLE) {
375 continue;
376 }
377 j++;
378 }
379 assert(k == handles.length(), "missed a handle?");
380 assert(j == regs->length(), "missed a field?");
381 }
382
383 // Fields are in registers. Create an instance of the inline type and
384 // initialize it with the values of the fields.
385 oop InlineKlass::realloc_result(const RegisterMap& reg_map, const GrowableArray<Handle>& handles, TRAPS) {
386 oop new_vt = allocate_instance(CHECK_NULL);
387 const Array<SigEntry>* sig_vk = extended_sig();
388 const Array<VMRegPair>* regs = return_regs();
389
390 int j = 1;
391 int k = 0;
392 for (int i = 0; i < sig_vk->length(); i++) {
393 BasicType bt = sig_vk->at(i)._bt;
394 if (bt == T_METADATA) {
395 continue;
396 }
397 if (bt == T_VOID) {
398 if (sig_vk->at(i-1)._bt == T_LONG ||
399 sig_vk->at(i-1)._bt == T_DOUBLE) {
400 j++;
401 }
402 continue;
403 }
404 int off = sig_vk->at(i)._offset;
405 assert(off > 0, "offset in object should be positive");
406 VMRegPair pair = regs->at(j);
407 address loc = reg_map.location(pair.first(), nullptr);
408 guarantee(loc != nullptr, "bad register save location");
409 switch(bt) {
410 case T_BOOLEAN: {
411 new_vt->bool_field_put(off, *(jboolean*)loc);
412 break;
413 }
414 case T_CHAR: {
415 new_vt->char_field_put(off, *(jchar*)loc);
416 break;
417 }
418 case T_BYTE: {
419 new_vt->byte_field_put(off, *(jbyte*)loc);
420 break;
421 }
422 case T_SHORT: {
423 new_vt->short_field_put(off, *(jshort*)loc);
424 break;
425 }
426 case T_INT: {
427 new_vt->int_field_put(off, *(jint*)loc);
428 break;
429 }
430 case T_LONG: {
431 new_vt->long_field_put(off, *(jlong*)loc);
432 break;
433 }
434 case T_OBJECT:
435 case T_ARRAY: {
436 Handle handle = handles.at(k++);
437 new_vt->obj_field_put(off, handle());
438 break;
439 }
440 case T_FLOAT: {
441 new_vt->float_field_put(off, *(jfloat*)loc);
442 break;
443 }
444 case T_DOUBLE: {
445 new_vt->double_field_put(off, *(jdouble*)loc);
446 break;
447 }
448 default:
449 ShouldNotReachHere();
450 }
451 *(intptr_t*)loc = 0xDEAD;
452 j++;
453 }
454 assert(j == regs->length(), "missed a field?");
455 assert(k == handles.length(), "missed an oop?");
456 return new_vt;
457 }
458
459 // Check if we return an inline type in scalarized form, i.e. check if either
460 // - The return value is a tagged InlineKlass pointer, or
461 // - The return value is an inline type oop that is also returned in scalarized form
462 InlineKlass* InlineKlass::returned_inline_klass(const RegisterMap& map, bool* return_oop, Method* method) {
463 BasicType bt = T_METADATA;
464 VMRegPair pair;
465 int nb = SharedRuntime::java_return_convention(&bt, &pair, 1);
466 assert(nb == 1, "broken");
467
468 intptr_t* loc = (intptr_t*)map.location(pair.first(), nullptr);
469 guarantee(loc != nullptr, "bad register save location");
470 intptr_t ptr = *loc;
471 if (is_set_nth_bit(ptr, 0)) {
472 // Return value is tagged, must be an InlineKlass pointer
473 clear_nth_bit(ptr, 0);
474 assert(Metaspace::contains((void*)ptr), "should be klass");
475 InlineKlass* vk = (InlineKlass*)ptr;
476 assert(vk->can_be_returned_as_fields(), "must be able to return as fields");
477 if (return_oop != nullptr) {
478 // Not returning an oop
479 *return_oop = false;
480 }
481 return vk;
482 }
483 // Return value is not tagged, must be a valid oop
484 oop o = cast_to_oop(ptr);
485 assert(oopDesc::is_oop_or_null(o), "Bad oop return: " PTR_FORMAT, ptr);
486 if (return_oop != nullptr && o != nullptr && o->is_inline_type()) {
487 // Check if inline type is also returned in scalarized form
488 InlineKlass* vk_val = InlineKlass::cast(o->klass());
489 InlineKlass* vk_sig = method->returns_inline_type();
490 if (vk_val->can_be_returned_as_fields() && vk_sig != nullptr) {
491 assert(vk_val == vk_sig, "Unexpected return value");
492 return vk_val;
493 }
494 }
495 return nullptr;
496 }
497
498 // CDS support
499 #if INCLUDE_CDS
500
501 void InlineKlass::remove_unshareable_info() {
502 InstanceKlass::remove_unshareable_info();
503
504 // update it to point to the "buffered" copy of this class.
505 _adr_inline_klass_members = calculate_members_address();
506 ArchivePtrMarker::mark_pointer(&_adr_inline_klass_members);
507
508 set_extended_sig(nullptr);
509 set_return_regs(nullptr);
510 set_pack_handler(nullptr);
511 set_pack_handler_jobject(nullptr);
512 set_unpack_handler(nullptr);
513
514 assert(pack_handler() == nullptr, "pack handler not null");
515 }
516
517 #endif // CDS
518
519 #define BULLET " - "
520
521 void InlineKlass::print_on(outputStream* st) const {
522 InstanceKlass::print_on(st);
523 members().print_on(st);
524 st->print_cr(BULLET"---- LayoutKinds:");
525 auto print_layout_kind = [&](LayoutKind lk) {
526 if (is_layout_supported(lk)) {
527 st->print_cr(BULLET"%s layout: %d/%d",
528 LayoutKindHelper::layout_kind_as_string(lk),
529 layout_size_in_bytes(lk), layout_alignment(lk));
530 } else {
531 st->print_cr(BULLET"%s layout: -/-",
532 LayoutKindHelper::layout_kind_as_string(lk));
533 }
534 };
535 print_layout_kind(LayoutKind::BUFFERED);
536 print_layout_kind(LayoutKind::NULL_FREE_NON_ATOMIC_FLAT);
537 print_layout_kind(LayoutKind::NULL_FREE_ATOMIC_FLAT);
538 print_layout_kind(LayoutKind::NULLABLE_ATOMIC_FLAT);
539 print_layout_kind(LayoutKind::NULLABLE_NON_ATOMIC_FLAT);
540 }
541
542 // Verification
543
544 void InlineKlass::verify_on(outputStream* st) {
545 InstanceKlass::verify_on(st);
546 guarantee(prototype_header().is_inline_type(), "Prototype header is not inline type");
547 }
548
549 void InlineKlass::oop_verify_on(oop obj, outputStream* st) {
550 InstanceKlass::oop_verify_on(obj, st);
551 guarantee(obj->mark().is_inline_type(), "Header is not inline type");
552 }
553
554 void InlineKlass::Members::print_on(outputStream* st) const {
555 st->print_cr(BULLET"---- inline type members:");
556 st->print(BULLET"extended signature registers: ");
557 InstanceKlass::print_array_on(st, _extended_sig, [](outputStream* ost, SigEntry pair){
558 pair.print_on(ost);
559 });
560 st->print(BULLET"return registers: ");
561 InstanceKlass::print_array_on(st, _return_regs, [](outputStream* ost, VMRegPair pair) {
562 pair.print_on(ost);
563 });
564 st->print_cr(BULLET"pack handler: " PTR_FORMAT, p2i(_pack_handler));
565 st->print_cr(BULLET"pack handler (jobject): " PTR_FORMAT, p2i(_pack_handler_jobject));
566 st->print_cr(BULLET"unpack handler: " PTR_FORMAT, p2i(_unpack_handler));
567 st->print_cr(BULLET"null reset offset: %d", _null_reset_value_offset);
568 st->print_cr(BULLET"payload offset: %d", _payload_offset);
569 st->print_cr(BULLET"payload size (bytes): %d", _payload_size_in_bytes);
570 st->print_cr(BULLET"payload alignment: %d", _payload_alignment);
571 st->print_cr(BULLET"null-free non-atomic size (bytes): %d", _null_free_non_atomic_size_in_bytes);
572 st->print_cr(BULLET"null-free non-atomic alignment: %d", _null_free_non_atomic_alignment);
573 st->print_cr(BULLET"null-free atomic size (bytes): %d", _null_free_atomic_size_in_bytes);
574 st->print_cr(BULLET"nullable atomic size (bytes): %d", _nullable_atomic_size_in_bytes);
575 st->print_cr(BULLET"nullable non-atomic size (bytes): %d", _nullable_non_atomic_size_in_bytes);
576 st->print_cr(BULLET"null marker offset: %d", _null_marker_offset);
577 st->print_cr(BULLET"fast acmp offset: %d", _fast_acmp_offset);
578 st->print_cr(BULLET"fast acmp mask: " INT64_FORMAT_X_0, _fast_acmp_mask);
579 }
580
581 #undef BULLET