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 public: 67 static void initialize(); 68 }; 69 70 public: 71 static JNINativeMethod methods[]; 72 static int methods_count(); 73 74 static inline Method* asMethod(jobject jvmci_method) { 75 return (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(jvmci_method); 76 } 77 78 static inline Method* asMethod(Handle jvmci_method) { 79 return (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(jvmci_method); 80 } 81 82 static inline Method* asMethod(oop jvmci_method) { 83 return (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(jvmci_method); 84 } 85 86 static inline ConstantPool* asConstantPool(jobject jvmci_constant_pool) { 87 return (ConstantPool*) (address) HotSpotConstantPool::metaspaceConstantPool(jvmci_constant_pool); 88 } 89 90 static inline ConstantPool* asConstantPool(Handle jvmci_constant_pool) { 91 return (ConstantPool*) (address) HotSpotConstantPool::metaspaceConstantPool(jvmci_constant_pool); 92 } 93 94 static inline ConstantPool* asConstantPool(oop jvmci_constant_pool) { 95 return (ConstantPool*) (address) HotSpotConstantPool::metaspaceConstantPool(jvmci_constant_pool); 96 } 97 98 static inline Klass* asKlass(jobject jvmci_type) { 99 return java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(jvmci_type)); 100 } 101 102 static inline Klass* asKlass(Handle jvmci_type) { 103 return java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(jvmci_type)); 104 } 105 106 static inline Klass* asKlass(oop jvmci_type) { 107 return java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(jvmci_type)); 108 } 109 110 static inline MethodData* asMethodData(jlong metaspaceMethodData) { 111 return (MethodData*) (address) metaspaceMethodData; 112 } 113 114 static oop get_jvmci_method(const methodHandle& method, TRAPS); 115 116 static oop get_jvmci_type(KlassHandle klass, TRAPS); 117 }; 118 119 class JavaArgumentUnboxer : public SignatureIterator { 120 protected: 121 JavaCallArguments* _jca; 122 arrayOop _args; 123 int _index; 124 125 oop next_arg(BasicType expectedType) { 126 assert(_index < _args->length(), "out of bounds"); 127 oop arg=((objArrayOop) (_args))->obj_at(_index++); 128 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch"); 129 return arg; 130 } 131 132 public: 133 JavaArgumentUnboxer(Symbol* signature, JavaCallArguments* jca, arrayOop args, bool is_static) : SignatureIterator(signature) { 134 this->_return_type = T_ILLEGAL; 135 _jca = jca; 136 _index = 0; 137 _args = args; 138 if (!is_static) { 139 _jca->push_oop(next_arg(T_OBJECT)); 140 } 141 iterate(); 142 assert(_index == args->length(), "arg count mismatch with signature"); 143 } 144 145 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))); } 146 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))); } 147 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))); } 148 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))); } 149 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))); } 150 151 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))); } 152 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))); } 153 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))); } 154 155 inline void do_object() { _jca->push_oop(next_arg(T_OBJECT)); } 156 inline void do_object(int begin, int end) { if (!is_return_type()) _jca->push_oop(next_arg(T_OBJECT)); } 157 inline void do_array(int begin, int end) { if (!is_return_type()) _jca->push_oop(next_arg(T_OBJECT)); } 158 inline void do_void() { } 159 }; 160 161 #endif // SHARE_VM_JVMCI_JVMCI_COMPILER_TO_VM_HPP