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_array(int begin, int end) { if (!is_return_type()) _jca->push_oop(next_arg(T_OBJECT)); } 159 inline void do_void() { } 160 }; 161 162 class JNIHandleMark : public StackObj { 163 public: 164 JNIHandleMark() { push_jni_handle_block(); } 165 ~JNIHandleMark() { pop_jni_handle_block(); } 166 167 private: 168 static void push_jni_handle_block(); 169 static void pop_jni_handle_block(); 170 }; 171 172 #endif // SHARE_JVMCI_JVMCICOMPILERTOVM_HPP