1 /* 2 * Copyright (c) 1999, 2023, 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 25 #ifndef SHARE_C1_C1_RUNTIME1_HPP 26 #define SHARE_C1_C1_RUNTIME1_HPP 27 28 #include "c1/c1_FrameMap.hpp" 29 #include "code/stubs.hpp" 30 #include "interpreter/interpreter.hpp" 31 #include "memory/allStatic.hpp" 32 #include "runtime/deoptimization.hpp" 33 34 class StubAssembler; 35 36 // The Runtime1 holds all assembly stubs and VM 37 // runtime routines needed by code code generated 38 // by the Compiler1. 39 40 #define RUNTIME1_STUBS(stub, last_entry) \ 41 stub(dtrace_object_alloc) \ 42 stub(unwind_exception) \ 43 stub(forward_exception) \ 44 stub(throw_range_check_failed) /* throws ArrayIndexOutOfBoundsException */ \ 45 stub(throw_index_exception) /* throws IndexOutOfBoundsException */ \ 46 stub(throw_div0_exception) \ 47 stub(throw_null_pointer_exception) \ 48 stub(register_finalizer) \ 49 stub(new_instance) \ 50 stub(fast_new_instance) \ 51 stub(fast_new_instance_init_check) \ 52 stub(new_type_array) \ 53 stub(new_object_array) \ 54 stub(new_null_free_array) \ 55 stub(new_multi_array) \ 56 stub(load_flat_array) \ 57 stub(store_flat_array) \ 58 stub(substitutability_check) \ 59 stub(buffer_inline_args) \ 60 stub(buffer_inline_args_no_receiver)\ 61 stub(handle_exception_nofpu) /* optimized version that does not preserve fpu registers */ \ 62 stub(handle_exception) \ 63 stub(handle_exception_from_callee) \ 64 stub(throw_array_store_exception) \ 65 stub(throw_class_cast_exception) \ 66 stub(throw_incompatible_class_change_error) \ 67 stub(throw_illegal_monitor_state_exception) \ 68 stub(throw_identity_exception) \ 69 stub(slow_subtype_check) \ 70 stub(monitorenter) \ 71 stub(monitorenter_nofpu) /* optimized version that does not preserve fpu registers */ \ 72 stub(monitorexit) \ 73 stub(monitorexit_nofpu) /* optimized version that does not preserve fpu registers */ \ 74 stub(deoptimize) \ 75 stub(access_field_patching) \ 76 stub(load_klass_patching) \ 77 stub(load_mirror_patching) \ 78 stub(load_appendix_patching) \ 79 stub(fpu2long_stub) \ 80 stub(counter_overflow) \ 81 stub(predicate_failed_trap) \ 82 last_entry(number_of_ids) 83 84 #define DECLARE_STUB_ID(x) x ## _id , 85 #define DECLARE_LAST_STUB_ID(x) x 86 #define STUB_NAME(x) #x " Runtime1 stub", 87 #define LAST_STUB_NAME(x) #x " Runtime1 stub" 88 89 class StubAssemblerCodeGenClosure: public Closure { 90 public: 91 virtual OopMapSet* generate_code(StubAssembler* sasm) = 0; 92 }; 93 94 class Runtime1: public AllStatic { 95 friend class VMStructs; 96 friend class ArrayCopyStub; 97 98 public: 99 enum StubID { 100 RUNTIME1_STUBS(DECLARE_STUB_ID, DECLARE_LAST_STUB_ID) 101 }; 102 103 // statistics 104 #ifndef PRODUCT 105 static uint _generic_arraycopystub_cnt; 106 static uint _arraycopy_slowcase_cnt; 107 static uint _arraycopy_checkcast_cnt; 108 static uint _arraycopy_checkcast_attempt_cnt; 109 static uint _new_type_array_slowcase_cnt; 110 static uint _new_object_array_slowcase_cnt; 111 static uint _new_null_free_array_slowcase_cnt; 112 static uint _new_instance_slowcase_cnt; 113 static uint _new_multi_array_slowcase_cnt; 114 static uint _load_flat_array_slowcase_cnt; 115 static uint _store_flat_array_slowcase_cnt; 116 static uint _substitutability_check_slowcase_cnt; 117 static uint _buffer_inline_args_slowcase_cnt; 118 static uint _buffer_inline_args_no_receiver_slowcase_cnt; 119 static uint _monitorenter_slowcase_cnt; 120 static uint _monitorexit_slowcase_cnt; 121 static uint _patch_code_slowcase_cnt; 122 static uint _throw_range_check_exception_count; 123 static uint _throw_index_exception_count; 124 static uint _throw_div0_exception_count; 125 static uint _throw_null_pointer_exception_count; 126 static uint _throw_class_cast_exception_count; 127 static uint _throw_incompatible_class_change_error_count; 128 static uint _throw_illegal_monitor_state_exception_count; 129 static uint _throw_identity_exception_count; 130 static uint _throw_count; 131 #endif 132 133 private: 134 static CodeBlob* _blobs[number_of_ids]; 135 static const char* _blob_names[]; 136 static void buffer_inline_args_impl(JavaThread* current, Method* m, bool allocate_receiver); 137 138 // stub generation 139 public: 140 static CodeBlob* generate_blob(BufferBlob* buffer_blob, int stub_id, const char* name, bool expect_oop_map, StubAssemblerCodeGenClosure *cl); 141 static void generate_blob_for(BufferBlob* blob, StubID id); 142 static OopMapSet* generate_code_for(StubID id, StubAssembler* sasm); 143 private: 144 static OopMapSet* generate_exception_throw(StubAssembler* sasm, address target, bool has_argument); 145 static OopMapSet* generate_handle_exception(StubID id, StubAssembler* sasm); 146 static void generate_unwind_exception(StubAssembler *sasm); 147 static OopMapSet* generate_patching(StubAssembler* sasm, address target); 148 149 static OopMapSet* generate_stub_call(StubAssembler* sasm, Register result, address entry, 150 Register arg1 = noreg, Register arg2 = noreg, Register arg3 = noreg); 151 152 // runtime entry points 153 static void new_instance (JavaThread* current, Klass* klass); 154 static void new_instance_no_inline(JavaThread* current, Klass* klass); 155 static void new_type_array (JavaThread* current, Klass* klass, jint length); 156 static void new_object_array(JavaThread* current, Klass* klass, jint length); 157 static void new_null_free_array(JavaThread* current, Klass* klass, jint length); 158 static void new_multi_array (JavaThread* current, Klass* klass, int rank, jint* dims); 159 static void load_flat_array(JavaThread* current, flatArrayOopDesc* array, int index); 160 static void store_flat_array(JavaThread* current, flatArrayOopDesc* array, int index, oopDesc* value); 161 static int substitutability_check(JavaThread* current, oopDesc* left, oopDesc* right); 162 static void buffer_inline_args(JavaThread* current, Method* method); 163 static void buffer_inline_args_no_receiver(JavaThread* current, Method* method); 164 165 static address counter_overflow(JavaThread* current, int bci, Method* method); 166 167 static void unimplemented_entry(JavaThread* current, StubID id); 168 169 static address exception_handler_for_pc(JavaThread* current); 170 171 static void throw_range_check_exception(JavaThread* current, int index, arrayOopDesc* a); 172 static void throw_index_exception(JavaThread* current, int index); 173 static void throw_div0_exception(JavaThread* current); 174 static void throw_null_pointer_exception(JavaThread* current); 175 static void throw_class_cast_exception(JavaThread* current, oopDesc* object); 176 static void throw_incompatible_class_change_error(JavaThread* current); 177 static void throw_illegal_monitor_state_exception(JavaThread* current); 178 static void throw_identity_exception(JavaThread* current, oopDesc* object); 179 static void throw_array_store_exception(JavaThread* current, oopDesc* object); 180 181 static void monitorenter(JavaThread* current, oopDesc* obj, BasicObjectLock* lock); 182 static void monitorexit (JavaThread* current, BasicObjectLock* lock); 183 184 static void deoptimize(JavaThread* current, jint trap_request); 185 186 static int access_field_patching(JavaThread* current); 187 static int move_klass_patching(JavaThread* current); 188 static int move_mirror_patching(JavaThread* current); 189 static int move_appendix_patching(JavaThread* current); 190 191 static void patch_code(JavaThread* current, StubID stub_id); 192 193 public: 194 // initialization 195 static void initialize(BufferBlob* blob); 196 static void initialize_pd(); 197 198 // stubs 199 static CodeBlob* blob_for (StubID id); 200 static address entry_for(StubID id) { return blob_for(id)->code_begin(); } 201 static const char* name_for (StubID id); 202 static const char* name_for_address(address entry); 203 204 // platform might add runtime names. 205 static const char* pd_name_for_address(address entry); 206 207 // method tracing 208 static void trace_block_entry(jint block_id); 209 210 #ifndef PRODUCT 211 static address throw_count_address() { return (address)&_throw_count; } 212 static address arraycopy_count_address(BasicType type); 213 #endif 214 215 // directly accessible leaf routine 216 static int is_instance_of(oopDesc* mirror, oopDesc* obj); 217 218 static void predicate_failed_trap(JavaThread* current); 219 220 static void check_abort_on_vm_exception(oopDesc* ex); 221 222 static void print_statistics() PRODUCT_RETURN; 223 }; 224 225 #endif // SHARE_C1_C1_RUNTIME1_HPP