0
|
1 /*
|
|
2 * Copyright 1999-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
|
20 * CA 95054 USA or visit www.sun.com if you need additional information or
|
|
21 * have any questions.
|
|
22 *
|
|
23 */
|
|
24
|
|
25 class StubAssembler;
|
|
26
|
|
27 // The Runtime1 holds all assembly stubs and VM
|
|
28 // runtime routines needed by code code generated
|
|
29 // by the Compiler1.
|
|
30
|
|
31 #define RUNTIME1_STUBS(stub, last_entry) \
|
|
32 stub(dtrace_object_alloc) \
|
|
33 stub(unwind_exception) \
|
|
34 stub(forward_exception) \
|
|
35 stub(throw_range_check_failed) /* throws ArrayIndexOutOfBoundsException */ \
|
|
36 stub(throw_index_exception) /* throws IndexOutOfBoundsException */ \
|
|
37 stub(throw_div0_exception) \
|
|
38 stub(throw_null_pointer_exception) \
|
|
39 stub(register_finalizer) \
|
|
40 stub(new_instance) \
|
|
41 stub(fast_new_instance) \
|
|
42 stub(fast_new_instance_init_check) \
|
|
43 stub(new_type_array) \
|
|
44 stub(new_object_array) \
|
|
45 stub(new_multi_array) \
|
|
46 stub(handle_exception_nofpu) /* optimized version that does not preserve fpu registers */ \
|
|
47 stub(handle_exception) \
|
|
48 stub(throw_array_store_exception) \
|
|
49 stub(throw_class_cast_exception) \
|
|
50 stub(throw_incompatible_class_change_error) \
|
|
51 stub(slow_subtype_check) \
|
|
52 stub(monitorenter) \
|
|
53 stub(monitorenter_nofpu) /* optimized version that does not preserve fpu registers */ \
|
|
54 stub(monitorexit) \
|
|
55 stub(monitorexit_nofpu) /* optimized version that does not preserve fpu registers */ \
|
|
56 stub(access_field_patching) \
|
|
57 stub(load_klass_patching) \
|
|
58 stub(jvmti_exception_throw) \
|
342
|
59 stub(g1_pre_barrier_slow) \
|
|
60 stub(g1_post_barrier_slow) \
|
0
|
61 stub(fpu2long_stub) \
|
|
62 stub(counter_overflow) \
|
|
63 last_entry(number_of_ids)
|
|
64
|
|
65 #define DECLARE_STUB_ID(x) x ## _id ,
|
|
66 #define DECLARE_LAST_STUB_ID(x) x
|
|
67 #define STUB_NAME(x) #x " Runtime1 stub",
|
|
68 #define LAST_STUB_NAME(x) #x " Runtime1 stub"
|
|
69
|
|
70 class Runtime1: public AllStatic {
|
|
71 friend class VMStructs;
|
|
72 friend class ArrayCopyStub;
|
|
73 private:
|
|
74 static int desired_max_code_buffer_size() {
|
|
75 return (int) NMethodSizeLimit; // default 256K or 512K
|
|
76 }
|
|
77 static int desired_max_constant_size() {
|
|
78 return (int) NMethodSizeLimit / 10; // about 25K
|
|
79 }
|
|
80
|
|
81 // Note: This buffers is allocated once at startup since allocation
|
|
82 // for each compilation seems to be too expensive (at least on Intel
|
|
83 // win32).
|
|
84 static BufferBlob* _buffer_blob;
|
|
85
|
|
86 public:
|
|
87 enum StubID {
|
|
88 RUNTIME1_STUBS(DECLARE_STUB_ID, DECLARE_LAST_STUB_ID)
|
|
89 };
|
|
90
|
|
91 // statistics
|
|
92 #ifndef PRODUCT
|
|
93 static int _resolve_invoke_cnt;
|
|
94 static int _handle_wrong_method_cnt;
|
|
95 static int _ic_miss_cnt;
|
|
96 static int _generic_arraycopy_cnt;
|
|
97 static int _primitive_arraycopy_cnt;
|
|
98 static int _oop_arraycopy_cnt;
|
|
99 static int _arraycopy_slowcase_cnt;
|
|
100 static int _new_type_array_slowcase_cnt;
|
|
101 static int _new_object_array_slowcase_cnt;
|
|
102 static int _new_instance_slowcase_cnt;
|
|
103 static int _new_multi_array_slowcase_cnt;
|
|
104 static int _monitorenter_slowcase_cnt;
|
|
105 static int _monitorexit_slowcase_cnt;
|
|
106 static int _patch_code_slowcase_cnt;
|
|
107 static int _throw_range_check_exception_count;
|
|
108 static int _throw_index_exception_count;
|
|
109 static int _throw_div0_exception_count;
|
|
110 static int _throw_null_pointer_exception_count;
|
|
111 static int _throw_class_cast_exception_count;
|
|
112 static int _throw_incompatible_class_change_error_count;
|
|
113 static int _throw_array_store_exception_count;
|
|
114 static int _throw_count;
|
|
115 #endif
|
|
116
|
|
117 private:
|
|
118 static bool _is_initialized;
|
|
119 static CodeBlob* _blobs[number_of_ids];
|
|
120 static const char* _blob_names[];
|
|
121
|
|
122 // stub generation
|
|
123 static void generate_blob_for(StubID id);
|
|
124 static OopMapSet* generate_code_for(StubID id, StubAssembler* masm);
|
|
125 static OopMapSet* generate_exception_throw(StubAssembler* sasm, address target, bool has_argument);
|
|
126 static void generate_handle_exception(StubAssembler *sasm, OopMapSet* oop_maps, OopMap* oop_map, bool ignore_fpu_registers = false);
|
|
127 static void generate_unwind_exception(StubAssembler *sasm);
|
|
128 static OopMapSet* generate_patching(StubAssembler* sasm, address target);
|
|
129
|
|
130 static OopMapSet* generate_stub_call(StubAssembler* sasm, Register result, address entry,
|
|
131 Register arg1 = noreg, Register arg2 = noreg, Register arg3 = noreg);
|
|
132
|
|
133 // runtime entry points
|
|
134 static void new_instance (JavaThread* thread, klassOopDesc* klass);
|
|
135 static void new_type_array (JavaThread* thread, klassOopDesc* klass, jint length);
|
|
136 static void new_object_array(JavaThread* thread, klassOopDesc* klass, jint length);
|
|
137 static void new_multi_array (JavaThread* thread, klassOopDesc* klass, int rank, jint* dims);
|
|
138
|
|
139 #ifdef TIERED
|
|
140 static void counter_overflow(JavaThread* thread, int bci);
|
|
141 #endif // TIERED
|
|
142
|
|
143 static void unimplemented_entry (JavaThread* thread, StubID id);
|
|
144
|
|
145 static address exception_handler_for_pc(JavaThread* thread);
|
|
146 static void post_jvmti_exception_throw(JavaThread* thread);
|
|
147
|
|
148 static void throw_range_check_exception(JavaThread* thread, int index);
|
|
149 static void throw_index_exception(JavaThread* thread, int index);
|
|
150 static void throw_div0_exception(JavaThread* thread);
|
|
151 static void throw_null_pointer_exception(JavaThread* thread);
|
|
152 static void throw_class_cast_exception(JavaThread* thread, oopDesc* obect);
|
|
153 static void throw_incompatible_class_change_error(JavaThread* thread);
|
|
154 static void throw_array_store_exception(JavaThread* thread);
|
|
155
|
|
156 static void monitorenter(JavaThread* thread, oopDesc* obj, BasicObjectLock* lock);
|
|
157 static void monitorexit (JavaThread* thread, BasicObjectLock* lock);
|
|
158
|
|
159 static int access_field_patching(JavaThread* thread);
|
|
160 static int move_klass_patching(JavaThread* thread);
|
|
161
|
|
162 static void patch_code(JavaThread* thread, StubID stub_id);
|
|
163
|
|
164 public:
|
|
165 static BufferBlob* get_buffer_blob();
|
|
166 static void setup_code_buffer(CodeBuffer* cb, int call_stub_estimate);
|
|
167
|
|
168 // initialization
|
|
169 static bool is_initialized() { return _is_initialized; }
|
|
170 static void initialize();
|
|
171 static void initialize_pd();
|
|
172
|
|
173 // stubs
|
|
174 static CodeBlob* blob_for (StubID id);
|
|
175 static address entry_for(StubID id) { return blob_for(id)->instructions_begin(); }
|
|
176 static const char* name_for (StubID id);
|
|
177 static const char* name_for_address(address entry);
|
|
178
|
|
179 // method tracing
|
|
180 static void trace_block_entry(jint block_id);
|
|
181
|
|
182 #ifndef PRODUCT
|
|
183 static address throw_count_address() { return (address)&_throw_count; }
|
|
184 #endif
|
|
185
|
|
186 // directly accessible leaf routine
|
|
187 static int arraycopy(oopDesc* src, int src_pos, oopDesc* dst, int dst_pos, int length);
|
|
188 static void primitive_arraycopy(HeapWord* src, HeapWord* dst, int length);
|
|
189 static void oop_arraycopy(HeapWord* src, HeapWord* dst, int length);
|
|
190
|
|
191 static void print_statistics() PRODUCT_RETURN;
|
|
192 };
|