1 /*
2 * Copyright (c) 1997, 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 *
112 static OopHandle _reference_pending_list;
113
114 // The particular choice of collected heap.
115 static CollectedHeap* _collectedHeap;
116
117 static intptr_t _non_oop_bits;
118
119 // array of dummy objects used with +FullGCAlot
120 DEBUG_ONLY(static OopHandle _fullgc_alot_dummy_array;)
121 DEBUG_ONLY(static int _fullgc_alot_dummy_next;)
122
123 // Compiler/dispatch support
124 static int _base_vtable_size; // Java vtbl size of klass Object (in words)
125
126 // Initialization
127 static bool _bootstrapping; // true during genesis
128 static bool _module_initialized; // true after call_initPhase2 called
129 static bool _fully_initialized; // true after universe_init and initialize_vtables called
130
131 // the array of preallocated errors with backtraces
132 static objArrayOop preallocated_out_of_memory_errors();
133
134 static objArrayOop out_of_memory_errors();
135 // generate an out of memory error; if possible using an error with preallocated backtrace;
136 // otherwise return the given default error.
137 static oop gen_out_of_memory_error(oop default_err);
138
139 static OopStorage* _vm_weak;
140 static OopStorage* _vm_global;
141
142 static jint initialize_heap();
143 static void initialize_tlab();
144 static void initialize_basic_type_mirrors(TRAPS);
145 static void fixup_mirrors(TRAPS);
146
147 static void compute_base_vtable_size(); // compute vtable size of class Object
148
149 static void genesis(TRAPS); // Create the initial world
150
151 // Mirrors for primitive classes (created eagerly)
152 static oop check_mirror(oop m) {
153 assert(m != nullptr, "mirror not initialized");
154 return m;
236 static oop the_min_jint_string();
237
238 static oop null_ptr_exception_instance();
239 static oop arithmetic_exception_instance();
240 static oop internal_error_instance();
241 static oop array_index_out_of_bounds_exception_instance();
242 static oop array_store_exception_instance();
243 static oop class_cast_exception_instance();
244 static oop preempted_exception_instance();
245 static oop vm_exception() { return internal_error_instance(); }
246
247 static Array<Klass*>* the_array_interfaces_array() { return _the_array_interfaces_array; }
248 static uintx the_array_interfaces_bitmap() { return _the_array_interfaces_bitmap; }
249
250 static Method* finalizer_register_method();
251 static Method* loader_addClass_method();
252 static Method* throw_illegal_access_error();
253 static Method* throw_no_such_method_error();
254 static Method* do_stack_walk_method();
255
256 static oop the_null_sentinel();
257 static address the_null_sentinel_addr() { return (address) &_the_null_sentinel; }
258
259 // Function to initialize these
260 static void initialize_known_methods(JavaThread* current);
261
262 static void create_preallocated_out_of_memory_errors(TRAPS);
263
264 // Reference pending list manipulation. Access is protected by
265 // Heap_lock. The getter, setter and predicate require the caller
266 // owns the lock. Swap is used by parallel non-concurrent reference
267 // processing threads, where some higher level controller owns
268 // Heap_lock, so requires the lock is locked, but not necessarily by
269 // the current thread.
270 static oop reference_pending_list();
271 static void clear_reference_pending_list();
272 static bool has_reference_pending_list();
273 static oop swap_reference_pending_list(oop list);
274
275 static Array<int>* the_empty_int_array() { return _the_empty_int_array; }
|
1 /*
2 * Copyright (c) 1997, 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 *
112 static OopHandle _reference_pending_list;
113
114 // The particular choice of collected heap.
115 static CollectedHeap* _collectedHeap;
116
117 static intptr_t _non_oop_bits;
118
119 // array of dummy objects used with +FullGCAlot
120 DEBUG_ONLY(static OopHandle _fullgc_alot_dummy_array;)
121 DEBUG_ONLY(static int _fullgc_alot_dummy_next;)
122
123 // Compiler/dispatch support
124 static int _base_vtable_size; // Java vtbl size of klass Object (in words)
125
126 // Initialization
127 static bool _bootstrapping; // true during genesis
128 static bool _module_initialized; // true after call_initPhase2 called
129 static bool _fully_initialized; // true after universe_init and initialize_vtables called
130
131 // the array of preallocated errors with backtraces
132 static refArrayOop preallocated_out_of_memory_errors();
133
134 static refArrayOop out_of_memory_errors();
135 // generate an out of memory error; if possible using an error with preallocated backtrace;
136 // otherwise return the given default error.
137 static oop gen_out_of_memory_error(oop default_err);
138
139 static OopStorage* _vm_weak;
140 static OopStorage* _vm_global;
141
142 static jint initialize_heap();
143 static void initialize_tlab();
144 static void initialize_basic_type_mirrors(TRAPS);
145 static void fixup_mirrors(TRAPS);
146
147 static void compute_base_vtable_size(); // compute vtable size of class Object
148
149 static void genesis(TRAPS); // Create the initial world
150
151 // Mirrors for primitive classes (created eagerly)
152 static oop check_mirror(oop m) {
153 assert(m != nullptr, "mirror not initialized");
154 return m;
236 static oop the_min_jint_string();
237
238 static oop null_ptr_exception_instance();
239 static oop arithmetic_exception_instance();
240 static oop internal_error_instance();
241 static oop array_index_out_of_bounds_exception_instance();
242 static oop array_store_exception_instance();
243 static oop class_cast_exception_instance();
244 static oop preempted_exception_instance();
245 static oop vm_exception() { return internal_error_instance(); }
246
247 static Array<Klass*>* the_array_interfaces_array() { return _the_array_interfaces_array; }
248 static uintx the_array_interfaces_bitmap() { return _the_array_interfaces_bitmap; }
249
250 static Method* finalizer_register_method();
251 static Method* loader_addClass_method();
252 static Method* throw_illegal_access_error();
253 static Method* throw_no_such_method_error();
254 static Method* do_stack_walk_method();
255
256 static Method* is_substitutable_method();
257 static Method* value_object_hash_code_method();
258
259 static oop the_null_sentinel();
260 static address the_null_sentinel_addr() { return (address) &_the_null_sentinel; }
261
262 // Function to initialize these
263 static void initialize_known_methods(JavaThread* current);
264
265 static void create_preallocated_out_of_memory_errors(TRAPS);
266
267 // Reference pending list manipulation. Access is protected by
268 // Heap_lock. The getter, setter and predicate require the caller
269 // owns the lock. Swap is used by parallel non-concurrent reference
270 // processing threads, where some higher level controller owns
271 // Heap_lock, so requires the lock is locked, but not necessarily by
272 // the current thread.
273 static oop reference_pending_list();
274 static void clear_reference_pending_list();
275 static bool has_reference_pending_list();
276 static oop swap_reference_pending_list(oop list);
277
278 static Array<int>* the_empty_int_array() { return _the_empty_int_array; }
|