1 /*
2 * Copyright (c) 2011, 2018, 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_VM_JVMCI_JVMCI_COMPILER_TO_VM_HPP
25 #define SHARE_VM_JVMCI_JVMCI_COMPILER_TO_VM_HPP
26
27 #include "jni.h"
28 #include "runtime/javaCalls.hpp"
29 #include "jvmci/jvmciJavaClasses.hpp"
30
31 class CompilerToVM {
32 public:
33 class Data {
34 friend class JVMCIVMStructs;
35
36 private:
37 static int Klass_vtable_start_offset;
38 static int Klass_vtable_length_offset;
39
40 static int Method_extra_stack_entries;
41
42 static address SharedRuntime_ic_miss_stub;
43 static address SharedRuntime_handle_wrong_method_stub;
44 static address SharedRuntime_deopt_blob_unpack;
45 static address SharedRuntime_deopt_blob_uncommon_trap;
46
47 static size_t ThreadLocalAllocBuffer_alignment_reserve;
48
49 static CollectedHeap* Universe_collectedHeap;
50 static int Universe_base_vtable_size;
51 static address Universe_narrow_oop_base;
52 static int Universe_narrow_oop_shift;
53 static address Universe_narrow_klass_base;
54 static int Universe_narrow_klass_shift;
55 static uintptr_t Universe_verify_oop_mask;
56 static uintptr_t Universe_verify_oop_bits;
57 static void* Universe_non_oop_bits;
58
59 static bool _supports_inline_contig_alloc;
60 static HeapWord** _heap_end_addr;
61 static HeapWord* volatile* _heap_top_addr;
62 static int _max_oop_map_stack_offset;
63
64 static jbyte* cardtable_start_address;
65 static int cardtable_shift;
66
67 static int vm_page_size;
68
69 static int sizeof_vtableEntry;
70 static int sizeof_ExceptionTableElement;
71 static int sizeof_LocalVariableTableElement;
72 static int sizeof_ConstantPool;
73 static int sizeof_SymbolPointer;
74 static int sizeof_narrowKlass;
75 static int sizeof_arrayOopDesc;
76 static int sizeof_BasicLock;
77
78 static address dsin;
79 static address dcos;
80 static address dtan;
81 static address dexp;
82 static address dlog;
83 static address dlog10;
84 static address dpow;
85
86 static address symbol_init;
87 static address symbol_clinit;
88
89 public:
90 static void initialize(TRAPS);
91
92 static int max_oop_map_stack_offset() {
93 assert(_max_oop_map_stack_offset > 0, "must be initialized");
94 return Data::_max_oop_map_stack_offset;
95 }
96 };
97
98 static bool cstring_equals(const char* const& s0, const char* const& s1) {
99 return strcmp(s0, s1) == 0;
100 }
101
102 static unsigned cstring_hash(const char* const& s) {
103 int h = 0;
104 const char* p = s;
105 while (*p != '\0') {
106 h = 31 * h + *p;
107 p++;
108 }
109 return h;
110 }
111
112 static JNINativeMethod methods[];
113
114 static objArrayHandle initialize_intrinsics(TRAPS);
115 public:
116 static int methods_count();
117
118 static inline Method* asMethod(jobject jvmci_method) {
119 return (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(jvmci_method);
120 }
121
122 static inline Method* asMethod(Handle jvmci_method) {
123 return (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(jvmci_method);
124 }
125
126 static inline Method* asMethod(oop jvmci_method) {
127 return (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(jvmci_method);
128 }
129
130 static inline ConstantPool* asConstantPool(jobject jvmci_constant_pool) {
131 return (ConstantPool*) (address) HotSpotConstantPool::metaspaceConstantPool(jvmci_constant_pool);
132 }
133
134 static inline ConstantPool* asConstantPool(Handle jvmci_constant_pool) {
135 return (ConstantPool*) (address) HotSpotConstantPool::metaspaceConstantPool(jvmci_constant_pool);
136 }
137
138 static inline ConstantPool* asConstantPool(oop jvmci_constant_pool) {
139 return (ConstantPool*) (address) HotSpotConstantPool::metaspaceConstantPool(jvmci_constant_pool);
140 }
141
142 static inline Klass* asKlass(jobject jvmci_type) {
143 return java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(jvmci_type));
144 }
145
146 static inline Klass* asKlass(Handle jvmci_type) {
147 return java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(jvmci_type));
148 }
149
150 static inline Klass* asKlass(oop jvmci_type) {
151 return java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(jvmci_type));
152 }
153
154 static inline Klass* asKlass(jlong metaspaceKlass) {
155 return (Klass*) (address) metaspaceKlass;
156 }
157
158 static inline MethodData* asMethodData(jlong metaspaceMethodData) {
159 return (MethodData*) (address) metaspaceMethodData;
160 }
161
162 static oop get_jvmci_method(const methodHandle& method, TRAPS);
163
164 static oop get_jvmci_type(Klass* klass, TRAPS);
165 };
166
167 class JavaArgumentUnboxer : public SignatureIterator {
168 protected:
169 JavaCallArguments* _jca;
170 arrayOop _args;
171 int _index;
172
173 Handle next_arg(BasicType expectedType);
174
175 public:
176 JavaArgumentUnboxer(Symbol* signature, JavaCallArguments* jca, arrayOop args, bool is_static) : SignatureIterator(signature) {
177 this->_return_type = T_ILLEGAL;
178 _jca = jca;
179 _index = 0;
180 _args = args;
181 if (!is_static) {
182 _jca->push_oop(next_arg(T_OBJECT));
183 }
184 iterate();
185 assert(_index == args->length(), "arg count mismatch with signature");
186 }
187
188 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))); }
189 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))); }
190 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))); }
191 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))); }
192 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))); }
193
194 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))); }
195 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))); }
196 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))); }
197
198 inline void do_object() { _jca->push_oop(next_arg(T_OBJECT)); }
199 inline void do_object(int begin, int end) { if (!is_return_type()) _jca->push_oop(next_arg(T_OBJECT)); }
200 inline void do_array(int begin, int end) { if (!is_return_type()) _jca->push_oop(next_arg(T_OBJECT)); }
201 inline void do_void() { }
202 };
203
204 class JNIHandleMark : public StackObj {
205 public:
206 JNIHandleMark() { push_jni_handle_block(); }
207 ~JNIHandleMark() { pop_jni_handle_block(); }
208
209 private:
210 static void push_jni_handle_block();
211 static void pop_jni_handle_block();
212 };
213
214 #endif // SHARE_VM_JVMCI_JVMCI_COMPILER_TO_VM_HPP