1 /*
2 * Copyright (c) 2011, 2016, 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 "prims/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** _heap_top_addr;
62
63 static jbyte* cardtable_start_address;
64 static int cardtable_shift;
65
66 static int vm_page_size;
67
68 public:
69 static void initialize();
70 };
71
72 public:
73 static JNINativeMethod methods[];
74 static int methods_count();
75
76 static inline Method* asMethod(jobject jvmci_method) {
77 return (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(jvmci_method);
78 }
79
80 static inline Method* asMethod(Handle jvmci_method) {
81 return (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(jvmci_method);
82 }
83
84 static inline Method* asMethod(oop jvmci_method) {
85 return (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(jvmci_method);
86 }
87
88 static inline ConstantPool* asConstantPool(jobject jvmci_constant_pool) {
89 return (ConstantPool*) (address) HotSpotConstantPool::metaspaceConstantPool(jvmci_constant_pool);
90 }
91
92 static inline ConstantPool* asConstantPool(Handle jvmci_constant_pool) {
93 return (ConstantPool*) (address) HotSpotConstantPool::metaspaceConstantPool(jvmci_constant_pool);
94 }
95
96 static inline ConstantPool* asConstantPool(oop jvmci_constant_pool) {
97 return (ConstantPool*) (address) HotSpotConstantPool::metaspaceConstantPool(jvmci_constant_pool);
98 }
99
100 static inline Klass* asKlass(jobject jvmci_type) {
101 return java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(jvmci_type));
102 }
103
104 static inline Klass* asKlass(Handle jvmci_type) {
105 return java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(jvmci_type));
106 }
107
108 static inline Klass* asKlass(oop jvmci_type) {
109 return java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(jvmci_type));
110 }
111
112 static inline MethodData* asMethodData(jlong metaspaceMethodData) {
113 return (MethodData*) (address) metaspaceMethodData;
114 }
115
116 static oop get_jvmci_method(const methodHandle& method, TRAPS);
117
118 static oop get_jvmci_type(KlassHandle klass, TRAPS);
119 };
120
121 class JavaArgumentUnboxer : public SignatureIterator {
122 protected:
123 JavaCallArguments* _jca;
124 arrayOop _args;
125 int _index;
126
127 oop next_arg(BasicType expectedType) {
128 assert(_index < _args->length(), "out of bounds");
129 oop arg=((objArrayOop) (_args))->obj_at(_index++);
130 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
131 return arg;
132 }
133
134 public:
135 JavaArgumentUnboxer(Symbol* signature, JavaCallArguments* jca, arrayOop args, bool is_static) : SignatureIterator(signature) {
136 this->_return_type = T_ILLEGAL;
137 _jca = jca;
138 _index = 0;
139 _args = args;
140 if (!is_static) {
141 _jca->push_oop(next_arg(T_OBJECT));
142 }
143 iterate();
144 assert(_index == args->length(), "arg count mismatch with signature");
145 }
146
147 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))); }
148 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))); }
149 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))); }
150 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))); }
151 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))); }
152
153 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))); }
154 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))); }
155 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))); }
156
157 inline void do_object() { _jca->push_oop(next_arg(T_OBJECT)); }
158 inline void do_object(int begin, int end) { if (!is_return_type()) _jca->push_oop(next_arg(T_OBJECT)); }
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 #endif // SHARE_VM_JVMCI_JVMCI_COMPILER_TO_VM_HPP