1/*
2 * Copyright (c) 2011, 2017, 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
31class 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
167class JavaArgumentUnboxer : public SignatureIterator {
168 protected:
169  JavaCallArguments*  _jca;
170  arrayOop _args;
171  int _index;
172
173  Handle next_arg(BasicType expectedType) {
174    assert(_index < _args->length(), "out of bounds");
175    oop arg=((objArrayOop) (_args))->obj_at(_index++);
176    assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
177    return Handle(Thread::current(), arg);
178  }
179
180 public:
181  JavaArgumentUnboxer(Symbol* signature, JavaCallArguments*  jca, arrayOop args, bool is_static) : SignatureIterator(signature) {
182    this->_return_type = T_ILLEGAL;
183    _jca = jca;
184    _index = 0;
185    _args = args;
186    if (!is_static) {
187      _jca->push_oop(next_arg(T_OBJECT));
188    }
189    iterate();
190    assert(_index == args->length(), "arg count mismatch with signature");
191  }
192
193  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))); }
194  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))); }
195  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))); }
196  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))); }
197  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))); }
198
199  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))); }
200  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))); }
201  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))); }
202
203  inline void do_object() { _jca->push_oop(next_arg(T_OBJECT)); }
204  inline void do_object(int begin, int end) { if (!is_return_type()) _jca->push_oop(next_arg(T_OBJECT)); }
205  inline void do_array(int begin, int end)  { if (!is_return_type()) _jca->push_oop(next_arg(T_OBJECT)); }
206  inline void do_void()                     { }
207};
208
209class JNIHandleMark : public StackObj {
210  public:
211    JNIHandleMark() { push_jni_handle_block(); }
212    ~JNIHandleMark() { pop_jni_handle_block(); }
213
214  private:
215    static void push_jni_handle_block();
216    static void pop_jni_handle_block();
217};
218
219#endif // SHARE_VM_JVMCI_JVMCI_COMPILER_TO_VM_HPP
220