1 /*
2 * Copyright (c) 1999, 2024, 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 #include "runtime/stubDeclarations.hpp"
34
35 class StubAssembler;
36
37 // The Runtime1 holds all assembly stubs and VM
38 // runtime routines needed by code code generated
39 // by the Compiler1.
40
41 class StubAssemblerCodeGenClosure: public Closure {
42 public:
43 virtual OopMapSet* generate_code(StubAssembler* sasm) = 0;
44 };
45
46 // define C1StubId enum tags: unwind_exception_id etc
47
48 #define C1_STUB_ID_ENUM_DECLARE(name) STUB_ID_NAME(name),
49 enum class C1StubId :int {
50 NO_STUBID = -1,
51 C1_STUBS_DO(C1_STUB_ID_ENUM_DECLARE)
52 NUM_STUBIDS
53 };
54 #undef C1_STUB_ID_ENUM_DECLARE
55
56 class Runtime1: public AllStatic {
57 friend class VMStructs;
58 friend class ArrayCopyStub;
59
60 public:
61 // statistics
62 #ifndef PRODUCT
63 static uint _generic_arraycopystub_cnt;
64 static uint _arraycopy_slowcase_cnt;
65 static uint _arraycopy_checkcast_cnt;
66 static uint _arraycopy_checkcast_attempt_cnt;
67 static uint _new_type_array_slowcase_cnt;
68 static uint _new_object_array_slowcase_cnt;
69 static uint _new_null_free_array_slowcase_cnt;
70 static uint _new_instance_slowcase_cnt;
71 static uint _new_multi_array_slowcase_cnt;
72 static uint _load_flat_array_slowcase_cnt;
73 static uint _store_flat_array_slowcase_cnt;
74 static uint _substitutability_check_slowcase_cnt;
75 static uint _buffer_inline_args_slowcase_cnt;
76 static uint _buffer_inline_args_no_receiver_slowcase_cnt;
77 static uint _monitorenter_slowcase_cnt;
78 static uint _monitorexit_slowcase_cnt;
79 static uint _patch_code_slowcase_cnt;
80 static uint _throw_range_check_exception_count;
81 static uint _throw_index_exception_count;
82 static uint _throw_div0_exception_count;
83 static uint _throw_null_pointer_exception_count;
84 static uint _throw_class_cast_exception_count;
85 static uint _throw_incompatible_class_change_error_count;
86 static uint _throw_illegal_monitor_state_exception_count;
87 static uint _throw_identity_exception_count;
88 static uint _throw_count;
89 #endif
90
91 private:
92 static CodeBlob* _blobs[(int)C1StubId::NUM_STUBIDS];
93 static const char* _blob_names[];
94 static void buffer_inline_args_impl(JavaThread* current, Method* m, bool allocate_receiver);
95
96 // stub generation
97 public:
98 static CodeBlob* generate_blob(BufferBlob* buffer_blob, C1StubId id, const char* name, bool expect_oop_map, StubAssemblerCodeGenClosure *cl);
99 static void generate_blob_for(BufferBlob* blob, C1StubId id);
100 static OopMapSet* generate_code_for(C1StubId id, StubAssembler* sasm);
101 private:
102 static OopMapSet* generate_exception_throw(StubAssembler* sasm, address target, bool has_argument);
103 static OopMapSet* generate_handle_exception(C1StubId id, StubAssembler* sasm);
104 static void generate_unwind_exception(StubAssembler *sasm);
105 static OopMapSet* generate_patching(StubAssembler* sasm, address target);
106
107 static OopMapSet* generate_stub_call(StubAssembler* sasm, Register result, address entry,
108 Register arg1 = noreg, Register arg2 = noreg, Register arg3 = noreg);
109
110 // runtime entry points
111 static void new_instance (JavaThread* current, Klass* klass);
112 static void new_instance_no_inline(JavaThread* current, Klass* klass);
113 static void new_type_array (JavaThread* current, Klass* klass, jint length);
114 static void new_object_array(JavaThread* current, Klass* klass, jint length);
115 static void new_null_free_array(JavaThread* current, Klass* klass, jint length);
116 static void new_multi_array (JavaThread* current, Klass* klass, int rank, jint* dims);
117 static void load_flat_array(JavaThread* current, flatArrayOopDesc* array, int index);
118 static void store_flat_array(JavaThread* current, flatArrayOopDesc* array, int index, oopDesc* value);
119 static int substitutability_check(JavaThread* current, oopDesc* left, oopDesc* right);
120 static void buffer_inline_args(JavaThread* current, Method* method);
121 static void buffer_inline_args_no_receiver(JavaThread* current, Method* method);
122
123 static address counter_overflow(JavaThread* current, int bci, Method* method);
124
125 static void unimplemented_entry(JavaThread* current, C1StubId id);
126
127 static address exception_handler_for_pc(JavaThread* current);
128
129 static void throw_range_check_exception(JavaThread* current, int index, arrayOopDesc* a);
130 static void throw_index_exception(JavaThread* current, int index);
131 static void throw_div0_exception(JavaThread* current);
132 static void throw_null_pointer_exception(JavaThread* current);
133 static void throw_class_cast_exception(JavaThread* current, oopDesc* object);
134 static void throw_incompatible_class_change_error(JavaThread* current);
135 static void throw_illegal_monitor_state_exception(JavaThread* current);
136 static void throw_identity_exception(JavaThread* current, oopDesc* object);
137 static void throw_array_store_exception(JavaThread* current, oopDesc* object);
138
139 static void monitorenter(JavaThread* current, oopDesc* obj, BasicObjectLock* lock);
140 static void monitorexit (JavaThread* current, BasicObjectLock* lock);
141
142 static void deoptimize(JavaThread* current, jint trap_request);
143
144 static int access_field_patching(JavaThread* current);
145 static int move_klass_patching(JavaThread* current);
146 static int move_mirror_patching(JavaThread* current);
147 static int move_appendix_patching(JavaThread* current);
148
149 static void patch_code(JavaThread* current, C1StubId stub_id);
150
151 public:
152 // initialization
153 static void initialize(BufferBlob* blob);
154 static void initialize_pd();
155
156 // stubs
157 static CodeBlob* blob_for (C1StubId id);
158 static address entry_for(C1StubId id) { return blob_for(id)->code_begin(); }
159 static const char* name_for (C1StubId id);
160 static const char* name_for_address(address entry);
161
162 // platform might add runtime names.
163 static const char* pd_name_for_address(address entry);
164
165 // method tracing
166 static void trace_block_entry(jint block_id);
167
168 #ifndef PRODUCT
169 static address throw_count_address() { return (address)&_throw_count; }
170 static address arraycopy_count_address(BasicType type);
171 #endif
172
173 // directly accessible leaf routine
174 static int is_instance_of(oopDesc* mirror, oopDesc* obj);
175
176 static void predicate_failed_trap(JavaThread* current);
177
178 static void check_abort_on_vm_exception(oopDesc* ex);
179
180 static void print_statistics() PRODUCT_RETURN;
181 };
182
183 #endif // SHARE_C1_C1_RUNTIME1_HPP