1 /*
2 * Copyright (c) 2011, 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 #ifndef SHARE_JVMCI_JVMCICOMPILERTOVM_HPP
25 #define SHARE_JVMCI_JVMCICOMPILERTOVM_HPP
26
27 #include "gc/shared/barrierSetAssembler.hpp"
28 #include "gc/shared/cardTable.hpp"
29 #include "jvmci/jvmciExceptions.hpp"
30 #include "runtime/javaCalls.hpp"
31 #include "runtime/signature.hpp"
32
33 class CollectedHeap;
34 class JVMCIObjectArray;
35
36 class CompilerToVM {
37 public:
38 class Data {
39 friend class JVMCIVMStructs;
40
41 private:
42 static int oopDesc_klass_offset_in_bytes;
43 static int arrayOopDesc_length_offset_in_bytes;
44
45 static int Klass_vtable_start_offset;
46 static int Klass_vtable_length_offset;
47
48 static int Method_extra_stack_entries;
49
50 static address SharedRuntime_ic_miss_stub;
51 static address SharedRuntime_handle_wrong_method_stub;
52 static address SharedRuntime_deopt_blob_unpack;
53 static address SharedRuntime_deopt_blob_unpack_with_exception_in_tls;
54 static address SharedRuntime_deopt_blob_uncommon_trap;
55 static address SharedRuntime_polling_page_return_handler;
56 static address SharedRuntime_throw_delayed_StackOverflowError_entry;
57
58 static address nmethod_entry_barrier;
59 static int thread_disarmed_guard_value_offset;
60 static int thread_address_bad_mask_offset;
61 #ifdef AARCH64
62 static int BarrierSetAssembler_nmethod_patching_type;
63 static address BarrierSetAssembler_patching_epoch_addr;
64 #endif
65
66 static address ZBarrierSetRuntime_load_barrier_on_oop_field_preloaded;
67 static address ZBarrierSetRuntime_load_barrier_on_weak_oop_field_preloaded;
68 static address ZBarrierSetRuntime_load_barrier_on_phantom_oop_field_preloaded;
69 static address ZBarrierSetRuntime_weak_load_barrier_on_oop_field_preloaded;
70 static address ZBarrierSetRuntime_weak_load_barrier_on_weak_oop_field_preloaded;
71 static address ZBarrierSetRuntime_weak_load_barrier_on_phantom_oop_field_preloaded;
72 static address ZBarrierSetRuntime_load_barrier_on_oop_array;
73 static address ZBarrierSetRuntime_clone;
74
75 static address ZPointerVectorLoadBadMask_address;
76 static address ZPointerVectorStoreBadMask_address;
77 static address ZPointerVectorStoreGoodMask_address;
78
79 static bool continuations_enabled;
80
81 static size_t ThreadLocalAllocBuffer_alignment_reserve;
82
83 static CollectedHeap* Universe_collectedHeap;
84 static int Universe_base_vtable_size;
85 static address Universe_narrow_oop_base;
86 static int Universe_narrow_oop_shift;
87 static address Universe_narrow_klass_base;
88 static int Universe_narrow_klass_shift;
89 static uintptr_t Universe_verify_oop_mask;
90 static uintptr_t Universe_verify_oop_bits;
91 static void* Universe_non_oop_bits;
92
93 static bool _supports_inline_contig_alloc;
94 static HeapWord** _heap_end_addr;
95 static HeapWord* volatile* _heap_top_addr;
96 static int _max_oop_map_stack_offset;
97 static int _fields_annotations_base_offset;
98
99 static CardTable::CardValue* cardtable_start_address;
100 static int cardtable_shift;
101
102 static size_t vm_page_size;
103
104 static int sizeof_vtableEntry;
105 static int sizeof_ExceptionTableElement;
106 static int sizeof_LocalVariableTableElement;
107 static int sizeof_ConstantPool;
108 static int sizeof_narrowKlass;
109 static int sizeof_arrayOopDesc;
110 static int sizeof_BasicLock;
111 #if INCLUDE_ZGC
112 static int sizeof_ZStoreBarrierEntry;
113 #endif
114 #if INCLUDE_SHENANDOAHGC
115 static address shenandoah_in_cset_fast_test_addr;
116 static int shenandoah_region_size_bytes_shift;
117 #endif
118
119 #ifdef X86
120 static int L1_line_size;
121 static bool supports_avx512_simd_sort;
122 #endif
123
124 static address dsin;
125 static address dcos;
126 static address dtan;
127 static address dtanh;
128 static address dcbrt;
129 static address dexp;
130 static address dlog;
131 static address dlog10;
132 static address dpow;
133
134 static address symbol_init;
135 static address symbol_clinit;
136
137 // Minimum alignment of an offset into CodeBuffer::SECT_CONSTS
138 static int data_section_item_alignment;
139
140 #if INCLUDE_JVMTI
141 /*
142 * Pointer to JvmtiExport::_should_notify_object_alloc.
143 * Exposed as an int* instead of an address so the
144 * underlying type is part of the JVMCIVMStructs definition.
145 */
146 static int* _should_notify_object_alloc;
147 #endif
148
149 public:
150 static void initialize(JVMCI_TRAPS);
151
152 static int max_oop_map_stack_offset() {
153 assert(_max_oop_map_stack_offset > 0, "must be initialized");
154 return Data::_max_oop_map_stack_offset;
155 }
156
157 static int get_data_section_item_alignment() {
158 return data_section_item_alignment;
159 }
160 };
161
162 static bool cstring_equals(const char* const& s0, const char* const& s1) {
163 return strcmp(s0, s1) == 0;
164 }
165
166 static unsigned cstring_hash(const char* const& s) {
167 unsigned h = 0;
168 const char* p = s;
169 while (*p != '\0') {
170 h = 31 * h + *p;
171 p++;
172 }
173 return h;
174 }
175
176 static JNINativeMethod methods[];
177 static JNINativeMethod jni_methods[];
178
179 static JVMCIObjectArray initialize_intrinsics(JVMCI_TRAPS);
180 public:
181 static int methods_count();
182
183 };
184 #endif // SHARE_JVMCI_JVMCICOMPILERTOVM_HPP