1 /*
2 * Copyright (c) 2011, 2020, 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 public:
95 static void initialize(JVMCI_TRAPS);
96
97 static int max_oop_map_stack_offset() {
98 assert(_max_oop_map_stack_offset > 0, "must be initialized");
99 return Data::_max_oop_map_stack_offset;
100 }
101 };
102
103 static bool cstring_equals(const char* const& s0, const char* const& s1) {
104 return strcmp(s0, s1) == 0;
105 }
106
107 static unsigned cstring_hash(const char* const& s) {
108 int h = 0;
109 const char* p = s;
110 while (*p != '\0') {
111 h = 31 * h + *p;
112 p++;
113 }
114 return h;
115 }
116
117 static JNINativeMethod methods[];
118 static JNINativeMethod jni_methods[];
119
120 static JVMCIObjectArray initialize_intrinsics(JVMCI_TRAPS);
121 public:
122 static int methods_count();
123
124 };
125
126
127 class JavaArgumentUnboxer : public SignatureIterator {
128 protected:
129 JavaCallArguments* _jca;
130 arrayOop _args;
131 int _index;
132
133 Handle next_arg(BasicType expectedType);
134
135 public:
136 JavaArgumentUnboxer(Symbol* signature,
137 JavaCallArguments* jca,
138 arrayOop args,
139 bool is_static)
140 : SignatureIterator(signature)
141 {
142 this->_return_type = T_ILLEGAL;
143 _jca = jca;
144 _index = 0;
145 _args = args;
146 if (!is_static) {
147 _jca->push_oop(next_arg(T_OBJECT));
148 }
149 do_parameters_on(this);
150 assert(_index == args->length(), "arg count mismatch with signature");
151 }
152
153 private:
154 friend class SignatureIterator; // so do_parameters_on can call do_type
155 void do_type(BasicType type) {
156 if (is_reference_type(type)) {
157 (type == T_INLINE_TYPE) ? _jca->push_oop(next_arg(T_INLINE_TYPE)) : _jca->push_oop(next_arg(T_OBJECT));
158 return;
159 }
160 Handle arg = next_arg(type);
161 int box_offset = java_lang_boxing_object::value_offset(type);
162 switch (type) {
163 case T_BOOLEAN: _jca->push_int(arg->bool_field(box_offset)); break;
164 case T_CHAR: _jca->push_int(arg->char_field(box_offset)); break;
165 case T_SHORT: _jca->push_int(arg->short_field(box_offset)); break;
166 case T_BYTE: _jca->push_int(arg->byte_field(box_offset)); break;
167 case T_INT: _jca->push_int(arg->int_field(box_offset)); break;
168 case T_LONG: _jca->push_long(arg->long_field(box_offset)); break;
169 case T_FLOAT: _jca->push_float(arg->float_field(box_offset)); break;
170 case T_DOUBLE: _jca->push_double(arg->double_field(box_offset)); break;
171 default: ShouldNotReachHere();
172 }
173 }
174 };
175
176 class JNIHandleMark : public StackObj {
177 JavaThread* _thread;
178 public:
179 JNIHandleMark(JavaThread* thread) : _thread(thread) { push_jni_handle_block(thread); }
180 ~JNIHandleMark() { pop_jni_handle_block(_thread); }
181
182 private:
183 static void push_jni_handle_block(JavaThread* thread);
184 static void pop_jni_handle_block(JavaThread* thread);
185 };
186
187 #endif // SHARE_JVMCI_JVMCICOMPILERTOVM_HPP