1 /*
2 * Copyright (c) 2011, 2021, 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/cardTable.hpp"
28 #include "jvmci/jvmciExceptions.hpp"
29 #include "runtime/javaCalls.hpp"
30 #include "runtime/signature.hpp"
31
32 class CollectedHeap;
33 class JVMCIObjectArray;
34
35 class CompilerToVM {
36 public:
37 class Data {
38 friend class JVMCIVMStructs;
39
40 private:
41 static int Klass_vtable_start_offset;
42 static int Klass_vtable_length_offset;
43
44 static int Method_extra_stack_entries;
45
46 static address SharedRuntime_ic_miss_stub;
47 static address SharedRuntime_handle_wrong_method_stub;
48 static address SharedRuntime_deopt_blob_unpack;
49 static address SharedRuntime_deopt_blob_unpack_with_exception_in_tls;
50 static address SharedRuntime_deopt_blob_uncommon_trap;
51
52 static size_t ThreadLocalAllocBuffer_alignment_reserve;
53
54 static CollectedHeap* Universe_collectedHeap;
55 static int Universe_base_vtable_size;
56 static address Universe_narrow_oop_base;
57 static int Universe_narrow_oop_shift;
58 static address Universe_narrow_klass_base;
59 static int Universe_narrow_klass_shift;
60 static uintptr_t Universe_verify_oop_mask;
61 static uintptr_t Universe_verify_oop_bits;
62 static void* Universe_non_oop_bits;
63
64 static bool _supports_inline_contig_alloc;
65 static HeapWord** _heap_end_addr;
66 static HeapWord* volatile* _heap_top_addr;
67 static int _max_oop_map_stack_offset;
68 static int _fields_annotations_base_offset;
69
70 static CardTable::CardValue* cardtable_start_address;
71 static int cardtable_shift;
72
73 static int vm_page_size;
74
75 static int sizeof_vtableEntry;
76 static int sizeof_ExceptionTableElement;
77 static int sizeof_LocalVariableTableElement;
78 static int sizeof_ConstantPool;
79 static int sizeof_narrowKlass;
80 static int sizeof_arrayOopDesc;
81 static int sizeof_BasicLock;
82
83 static address dsin;
84 static address dcos;
85 static address dtan;
86 static address dexp;
87 static address dlog;
88 static address dlog10;
89 static address dpow;
90
91 static address symbol_init;
92 static address symbol_clinit;
93
94 // Minimum alignment of an offset into CodeBuffer::SECT_CONSTS
95 static int data_section_item_alignment;
96
97 public:
98 static void initialize(JVMCI_TRAPS);
99
100 static int max_oop_map_stack_offset() {
101 assert(_max_oop_map_stack_offset > 0, "must be initialized");
102 return Data::_max_oop_map_stack_offset;
103 }
104
105 static int get_data_section_item_alignment() {
106 return data_section_item_alignment;
107 }
108 };
109
110 static bool cstring_equals(const char* const& s0, const char* const& s1) {
111 return strcmp(s0, s1) == 0;
112 }
113
114 static unsigned cstring_hash(const char* const& s) {
115 int h = 0;
116 const char* p = s;
117 while (*p != '\0') {
118 h = 31 * h + *p;
119 p++;
120 }
121 return h;
122 }
123
124 static JNINativeMethod methods[];
125 static JNINativeMethod jni_methods[];
126
127 static JVMCIObjectArray initialize_intrinsics(JVMCI_TRAPS);
128 public:
129 static int methods_count();
130
131 };
132
133
134 class JavaArgumentUnboxer : public SignatureIterator {
135 protected:
136 JavaCallArguments* _jca;
137 arrayOop _args;
138 int _index;
139
140 Handle next_arg(BasicType expectedType);
141
142 public:
143 JavaArgumentUnboxer(Symbol* signature,
144 JavaCallArguments* jca,
145 arrayOop args,
146 bool is_static)
147 : SignatureIterator(signature)
148 {
149 this->_return_type = T_ILLEGAL;
150 _jca = jca;
151 _index = 0;
152 _args = args;
153 if (!is_static) {
154 _jca->push_oop(next_arg(T_OBJECT));
155 }
156 do_parameters_on(this);
157 assert(_index == args->length(), "arg count mismatch with signature");
158 }
159
160 private:
161 friend class SignatureIterator; // so do_parameters_on can call do_type
162 void do_type(BasicType type) {
163 if (is_reference_type(type)) {
164 (type == T_PRIMITIVE_OBJECT) ? _jca->push_oop(next_arg(T_PRIMITIVE_OBJECT)) : _jca->push_oop(next_arg(T_OBJECT));
165 return;
166 }
167 Handle arg = next_arg(type);
168 int box_offset = java_lang_boxing_object::value_offset(type);
169 switch (type) {
170 case T_BOOLEAN: _jca->push_int(arg->bool_field(box_offset)); break;
171 case T_CHAR: _jca->push_int(arg->char_field(box_offset)); break;
172 case T_SHORT: _jca->push_int(arg->short_field(box_offset)); break;
173 case T_BYTE: _jca->push_int(arg->byte_field(box_offset)); break;
174 case T_INT: _jca->push_int(arg->int_field(box_offset)); break;
175 case T_LONG: _jca->push_long(arg->long_field(box_offset)); break;
176 case T_FLOAT: _jca->push_float(arg->float_field(box_offset)); break;
177 case T_DOUBLE: _jca->push_double(arg->double_field(box_offset)); break;
178 default: ShouldNotReachHere();
179 }
180 }
181 };
182
183 #endif // SHARE_JVMCI_JVMCICOMPILERTOVM_HPP