1 /*
2 * Copyright (c) 1999, 2018, 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_VM_C1_C1_RUNTIME1_HPP
26 #define SHARE_VM_C1_C1_RUNTIME1_HPP
27
28 #include "c1/c1_FrameMap.hpp"
29 #include "code/stubs.hpp"
30 #include "interpreter/interpreter.hpp"
31 #include "memory/allocation.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_multi_array) \
55 stub(handle_exception_nofpu) /* optimized version that does not preserve fpu registers */ \
56 stub(handle_exception) \
57 stub(handle_exception_from_callee) \
58 stub(throw_array_store_exception) \
59 stub(throw_class_cast_exception) \
60 stub(throw_incompatible_class_change_error) \
61 stub(slow_subtype_check) \
62 stub(monitorenter) \
63 stub(monitorenter_nofpu) /* optimized version that does not preserve fpu registers */ \
64 stub(monitorexit) \
65 stub(monitorexit_nofpu) /* optimized version that does not preserve fpu registers */ \
66 stub(deoptimize) \
67 stub(access_field_patching) \
68 stub(load_klass_patching) \
69 stub(load_mirror_patching) \
70 stub(load_appendix_patching) \
71 stub(fpu2long_stub) \
72 stub(counter_overflow) \
73 stub(predicate_failed_trap) \
74 last_entry(number_of_ids)
75
76 #define DECLARE_STUB_ID(x) x ## _id ,
77 #define DECLARE_LAST_STUB_ID(x) x
78 #define STUB_NAME(x) #x " Runtime1 stub",
79 #define LAST_STUB_NAME(x) #x " Runtime1 stub"
80
81 class StubAssemblerCodeGenClosure: public Closure {
82 public:
83 virtual OopMapSet* generate_code(StubAssembler* sasm) = 0;
84 };
85
86 class Runtime1: public AllStatic {
87 friend class VMStructs;
88 friend class ArrayCopyStub;
89
90 public:
91 enum StubID {
92 RUNTIME1_STUBS(DECLARE_STUB_ID, DECLARE_LAST_STUB_ID)
93 };
94
95 // statistics
96 #ifndef PRODUCT
97 static int _resolve_invoke_cnt;
98 static int _handle_wrong_method_cnt;
99 static int _ic_miss_cnt;
100 static int _generic_arraycopy_cnt;
101 static int _generic_arraycopystub_cnt;
102 static int _arraycopy_slowcase_cnt;
103 static int _arraycopy_checkcast_cnt;
104 static int _arraycopy_checkcast_attempt_cnt;
105 static int _new_type_array_slowcase_cnt;
106 static int _new_object_array_slowcase_cnt;
107 static int _new_instance_slowcase_cnt;
108 static int _new_multi_array_slowcase_cnt;
109 static int _monitorenter_slowcase_cnt;
110 static int _monitorexit_slowcase_cnt;
111 static int _patch_code_slowcase_cnt;
112 static int _throw_range_check_exception_count;
113 static int _throw_index_exception_count;
114 static int _throw_div0_exception_count;
115 static int _throw_null_pointer_exception_count;
116 static int _throw_class_cast_exception_count;
117 static int _throw_incompatible_class_change_error_count;
118 static int _throw_array_store_exception_count;
119 static int _throw_count;
120 #endif
121
122 private:
123 static CodeBlob* _blobs[number_of_ids];
124 static const char* _blob_names[];
125
126 // stub generation
127 public:
128 static CodeBlob* generate_blob(BufferBlob* buffer_blob, int stub_id, const char* name, bool expect_oop_map, StubAssemblerCodeGenClosure *cl);
129 static void generate_blob_for(BufferBlob* blob, StubID id);
130 static OopMapSet* generate_code_for(StubID id, StubAssembler* sasm);
131 private:
132 static OopMapSet* generate_exception_throw(StubAssembler* sasm, address target, bool has_argument);
133 static OopMapSet* generate_handle_exception(StubID id, StubAssembler* sasm);
134 static void generate_unwind_exception(StubAssembler *sasm);
135 static OopMapSet* generate_patching(StubAssembler* sasm, address target);
136
137 static OopMapSet* generate_stub_call(StubAssembler* sasm, Register result, address entry,
138 Register arg1 = noreg, Register arg2 = noreg, Register arg3 = noreg);
139
140 // runtime entry points
141 static void new_instance (JavaThread* thread, Klass* klass);
142 static void new_type_array (JavaThread* thread, Klass* klass, jint length);
143 static void new_object_array(JavaThread* thread, Klass* klass, jint length);
144 static void new_multi_array (JavaThread* thread, Klass* klass, int rank, jint* dims);
145
146 static address counter_overflow(JavaThread* thread, int bci, Method* method);
147
148 static void unimplemented_entry (JavaThread* thread, StubID id);
149
150 static address exception_handler_for_pc(JavaThread* thread);
151
152 static void throw_range_check_exception(JavaThread* thread, int index);
153 static void throw_index_exception(JavaThread* thread, int index);
154 static void throw_div0_exception(JavaThread* thread);
155 static void throw_null_pointer_exception(JavaThread* thread);
156 static void throw_class_cast_exception(JavaThread* thread, oopDesc* object);
157 static void throw_incompatible_class_change_error(JavaThread* thread);
158 static void throw_array_store_exception(JavaThread* thread, oopDesc* object);
159
160 static void monitorenter(JavaThread* thread, oopDesc* obj, BasicObjectLock* lock);
161 static void monitorexit (JavaThread* thread, BasicObjectLock* lock);
162
163 static void deoptimize(JavaThread* thread, jint trap_request);
164
165 static int access_field_patching(JavaThread* thread);
166 static int move_klass_patching(JavaThread* thread);
167 static int move_mirror_patching(JavaThread* thread);
168 static int move_appendix_patching(JavaThread* thread);
169
170 static void patch_code(JavaThread* thread, StubID stub_id);
171
172 public:
173 // initialization
174 static void initialize(BufferBlob* blob);
175 static void initialize_pd();
176
177 // stubs
178 static CodeBlob* blob_for (StubID id);
179 static address entry_for(StubID id) { return blob_for(id)->code_begin(); }
180 static const char* name_for (StubID id);
181 static const char* name_for_address(address entry);
182
183 // platform might add runtime names.
184 static const char* pd_name_for_address(address entry);
185
186 // method tracing
187 static void trace_block_entry(jint block_id);
188
189 #ifndef PRODUCT
190 static address throw_count_address() { return (address)&_throw_count; }
191 static address arraycopy_count_address(BasicType type);
192 #endif
193
194 // directly accessible leaf routine
195 static int is_instance_of(oopDesc* mirror, oopDesc* obj);
196
197 static void predicate_failed_trap(JavaThread* thread);
198
199 static void print_statistics() PRODUCT_RETURN;
200 };
201
202 #endif // SHARE_VM_C1_C1_RUNTIME1_HPP