1 /*
2 * Copyright (c) 2011, 2019, 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 JVMCIObjectArray;
33
34 class CompilerToVM {
35 public:
36 class Data {
37 friend class JVMCIVMStructs;
38
39 private:
40 static int Klass_vtable_start_offset;
41 static int Klass_vtable_length_offset;
42
43 static int Method_extra_stack_entries;
44
45 static address SharedRuntime_ic_miss_stub;
46 static address SharedRuntime_handle_wrong_method_stub;
47 static address SharedRuntime_deopt_blob_unpack;
48 static address SharedRuntime_deopt_blob_uncommon_trap;
49
50 static size_t ThreadLocalAllocBuffer_alignment_reserve;
51
52 static CollectedHeap* Universe_collectedHeap;
53 static int Universe_base_vtable_size;
54 static address Universe_narrow_oop_base;
55 static int Universe_narrow_oop_shift;
56 static address Universe_narrow_klass_base;
57 static int Universe_narrow_klass_shift;
58 static uintptr_t Universe_verify_oop_mask;
59 static uintptr_t Universe_verify_oop_bits;
60 static void* Universe_non_oop_bits;
61
62 static bool _supports_inline_contig_alloc;
63 static HeapWord** _heap_end_addr;
64 static HeapWord* volatile* _heap_top_addr;
65 static int _max_oop_map_stack_offset;
66 static int _fields_annotations_base_offset;
67
68 static CardTable::CardValue* cardtable_start_address;
69 static int cardtable_shift;
70
71 static int vm_page_size;
72
73 static int sizeof_vtableEntry;
74 static int sizeof_ExceptionTableElement;
75 static int sizeof_LocalVariableTableElement;
76 static int sizeof_ConstantPool;
77 static int sizeof_narrowKlass;
78 static int sizeof_arrayOopDesc;
79 static int sizeof_BasicLock;
80
81 static address dsin;
82 static address dcos;
83 static address dtan;
84 static address dexp;
85 static address dlog;
86 static address dlog10;
87 static address dpow;
88
89 static address symbol_init;
90 static address symbol_clinit;
91
92 public:
93 static void initialize(JVMCI_TRAPS);
94
95 static int max_oop_map_stack_offset() {
96 assert(_max_oop_map_stack_offset > 0, "must be initialized");
97 return Data::_max_oop_map_stack_offset;
98 }
99 };
100
101 static bool cstring_equals(const char* const& s0, const char* const& s1) {
102 return strcmp(s0, s1) == 0;
103 }
104
105 static unsigned cstring_hash(const char* const& s) {
106 int h = 0;
107 const char* p = s;
108 while (*p != '\0') {
109 h = 31 * h + *p;
110 p++;
111 }
112 return h;
113 }
114
115 static JNINativeMethod methods[];
116 static JNINativeMethod jni_methods[];
117
118 static JVMCIObjectArray initialize_intrinsics(JVMCI_TRAPS);
119 public:
120 static int methods_count();
121
122 };
123
124
125 class JavaArgumentUnboxer : public SignatureIterator {
126 protected:
127 JavaCallArguments* _jca;
128 arrayOop _args;
129 int _index;
130
131 Handle next_arg(BasicType expectedType);
132
133 public:
134 JavaArgumentUnboxer(Symbol* signature, JavaCallArguments* jca, arrayOop args, bool is_static) : SignatureIterator(signature) {
135 this->_return_type = T_ILLEGAL;
136 _jca = jca;
137 _index = 0;
138 _args = args;
139 if (!is_static) {
140 _jca->push_oop(next_arg(T_OBJECT));
141 }
142 iterate();
143 assert(_index == args->length(), "arg count mismatch with signature");
144 }
145
146 inline void do_bool() { if (!is_return_type()) _jca->push_int(next_arg(T_BOOLEAN)->bool_field(java_lang_boxing_object::value_offset_in_bytes(T_BOOLEAN))); }
147 inline void do_char() { if (!is_return_type()) _jca->push_int(next_arg(T_CHAR)->char_field(java_lang_boxing_object::value_offset_in_bytes(T_CHAR))); }
148 inline void do_short() { if (!is_return_type()) _jca->push_int(next_arg(T_SHORT)->short_field(java_lang_boxing_object::value_offset_in_bytes(T_SHORT))); }
149 inline void do_byte() { if (!is_return_type()) _jca->push_int(next_arg(T_BYTE)->byte_field(java_lang_boxing_object::value_offset_in_bytes(T_BYTE))); }
150 inline void do_int() { if (!is_return_type()) _jca->push_int(next_arg(T_INT)->int_field(java_lang_boxing_object::value_offset_in_bytes(T_INT))); }
151
152 inline void do_long() { if (!is_return_type()) _jca->push_long(next_arg(T_LONG)->long_field(java_lang_boxing_object::value_offset_in_bytes(T_LONG))); }
153 inline void do_float() { if (!is_return_type()) _jca->push_float(next_arg(T_FLOAT)->float_field(java_lang_boxing_object::value_offset_in_bytes(T_FLOAT))); }
154 inline void do_double() { if (!is_return_type()) _jca->push_double(next_arg(T_DOUBLE)->double_field(java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE))); }
155
156 inline void do_object() { _jca->push_oop(next_arg(T_OBJECT)); }
157 inline void do_object(int begin, int end) { if (!is_return_type()) _jca->push_oop(next_arg(T_OBJECT)); }
158 inline void do_valuetype(int begin, int end) { if (!is_return_type()) _jca->push_oop(next_arg(T_VALUETYPE)); }
159 inline void do_array(int begin, int end) { if (!is_return_type()) _jca->push_oop(next_arg(T_OBJECT)); }
160 inline void do_void() { }
161 };
162
163 class JNIHandleMark : public StackObj {
164 JavaThread* _thread;
165 public:
166 JNIHandleMark(JavaThread* thread) : _thread(thread) { push_jni_handle_block(thread); }
167 ~JNIHandleMark() { pop_jni_handle_block(_thread); }
168
169 private:
170 static void push_jni_handle_block(JavaThread* thread);
171 static void pop_jni_handle_block(JavaThread* thread);
172 };
173
174 #endif // SHARE_JVMCI_JVMCICOMPILERTOVM_HPP