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
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, arrayOopDesc* a);
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
|
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_value_array) \
55 stub(new_multi_array) \
56 stub(load_flattened_array) \
57 stub(store_flattened_array) \
58 stub(handle_exception_nofpu) /* optimized version that does not preserve fpu registers */ \
59 stub(handle_exception) \
60 stub(handle_exception_from_callee) \
61 stub(throw_array_store_exception) \
62 stub(throw_class_cast_exception) \
63 stub(throw_incompatible_class_change_error) \
64 stub(throw_illegal_monitor_state_exception) \
65 stub(slow_subtype_check) \
66 stub(monitorenter) \
67 stub(monitorenter_nofpu) /* optimized version that does not preserve fpu registers */ \
68 stub(monitorexit) \
69 stub(monitorexit_nofpu) /* optimized version that does not preserve fpu registers */ \
70 stub(deoptimize) \
71 stub(access_field_patching) \
72 stub(load_klass_patching) \
73 stub(load_mirror_patching) \
74 stub(load_appendix_patching) \
75 stub(fpu2long_stub) \
76 stub(counter_overflow) \
77 stub(predicate_failed_trap) \
78 last_entry(number_of_ids)
79
80 #define DECLARE_STUB_ID(x) x ## _id ,
81 #define DECLARE_LAST_STUB_ID(x) x
82 #define STUB_NAME(x) #x " Runtime1 stub",
83 #define LAST_STUB_NAME(x) #x " Runtime1 stub"
84
93
94 public:
95 enum StubID {
96 RUNTIME1_STUBS(DECLARE_STUB_ID, DECLARE_LAST_STUB_ID)
97 };
98
99 // statistics
100 #ifndef PRODUCT
101 static int _resolve_invoke_cnt;
102 static int _handle_wrong_method_cnt;
103 static int _ic_miss_cnt;
104 static int _generic_arraycopy_cnt;
105 static int _generic_arraycopystub_cnt;
106 static int _arraycopy_slowcase_cnt;
107 static int _arraycopy_checkcast_cnt;
108 static int _arraycopy_checkcast_attempt_cnt;
109 static int _new_type_array_slowcase_cnt;
110 static int _new_object_array_slowcase_cnt;
111 static int _new_instance_slowcase_cnt;
112 static int _new_multi_array_slowcase_cnt;
113 static int _load_flattened_array_slowcase_cnt;
114 static int _store_flattened_array_slowcase_cnt;
115 static int _monitorenter_slowcase_cnt;
116 static int _monitorexit_slowcase_cnt;
117 static int _patch_code_slowcase_cnt;
118 static int _throw_range_check_exception_count;
119 static int _throw_index_exception_count;
120 static int _throw_div0_exception_count;
121 static int _throw_null_pointer_exception_count;
122 static int _throw_class_cast_exception_count;
123 static int _throw_incompatible_class_change_error_count;
124 static int _throw_illegal_monitor_state_exception_count;
125 static int _throw_array_store_exception_count;
126 static int _throw_count;
127 #endif
128
129 private:
130 static CodeBlob* _blobs[number_of_ids];
131 static const char* _blob_names[];
132
133 // stub generation
134 public:
135 static CodeBlob* generate_blob(BufferBlob* buffer_blob, int stub_id, const char* name, bool expect_oop_map, StubAssemblerCodeGenClosure *cl);
136 static void generate_blob_for(BufferBlob* blob, StubID id);
137 static OopMapSet* generate_code_for(StubID id, StubAssembler* sasm);
138 private:
139 static OopMapSet* generate_exception_throw(StubAssembler* sasm, address target, bool has_argument);
140 static OopMapSet* generate_handle_exception(StubID id, StubAssembler* sasm);
141 static void generate_unwind_exception(StubAssembler *sasm);
142 static OopMapSet* generate_patching(StubAssembler* sasm, address target);
143
144 static OopMapSet* generate_stub_call(StubAssembler* sasm, Register result, address entry,
145 Register arg1 = noreg, Register arg2 = noreg, Register arg3 = noreg);
146
147 // runtime entry points
148 static void new_instance (JavaThread* thread, Klass* klass);
149 static void new_type_array (JavaThread* thread, Klass* klass, jint length);
150 static void new_object_array(JavaThread* thread, Klass* klass, jint length);
151 static void new_multi_array (JavaThread* thread, Klass* klass, int rank, jint* dims);
152 static void load_flattened_array(JavaThread* thread, valueArrayOopDesc* array, int index);
153 static void store_flattened_array(JavaThread* thread, valueArrayOopDesc* array, int index, oopDesc* value);
154
155 static address counter_overflow(JavaThread* thread, int bci, Method* method);
156
157 static void unimplemented_entry (JavaThread* thread, StubID id);
158
159 static address exception_handler_for_pc(JavaThread* thread);
160
161 static void throw_range_check_exception(JavaThread* thread, int index, arrayOopDesc* a);
162 static void throw_index_exception(JavaThread* thread, int index);
163 static void throw_div0_exception(JavaThread* thread);
164 static void throw_null_pointer_exception(JavaThread* thread);
165 static void throw_class_cast_exception(JavaThread* thread, oopDesc* object);
166 static void throw_incompatible_class_change_error(JavaThread* thread);
167 static void throw_illegal_monitor_state_exception(JavaThread* thread);
168 static void throw_array_store_exception(JavaThread* thread, oopDesc* object);
169
170 static void monitorenter(JavaThread* thread, oopDesc* obj, BasicObjectLock* lock);
171 static void monitorexit (JavaThread* thread, BasicObjectLock* lock);
172
173 static void deoptimize(JavaThread* thread, jint trap_request);
174
175 static int access_field_patching(JavaThread* thread);
176 static int move_klass_patching(JavaThread* thread);
177 static int move_mirror_patching(JavaThread* thread);
178 static int move_appendix_patching(JavaThread* thread);
179
180 static void patch_code(JavaThread* thread, StubID stub_id);
181
182 public:
183 // initialization
184 static void initialize(BufferBlob* blob);
185 static void initialize_pd();
186
187 // stubs
|