Mercurial > hg > truffle
annotate src/share/vm/runtime/stubRoutines.hpp @ 832:e7d5557ad624
Merge
author | jmasa |
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date | Thu, 02 Jul 2009 16:28:15 -0700 |
parents | f8236e79048a |
children | ddb7834449d0 |
rev | line source |
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0 | 1 /* |
2 * Copyright 1997-2007 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 // StubRoutines provides entry points to assembly routines used by | |
26 // compiled code and the run-time system. Platform-specific entry | |
27 // points are defined in the platform-specific inner class. | |
28 // | |
29 // Class scheme: | |
30 // | |
31 // platform-independent platform-dependent | |
32 // | |
33 // stubRoutines.hpp <-- included -- stubRoutines_<arch>.hpp | |
34 // ^ ^ | |
35 // | | | |
36 // implements implements | |
37 // | | | |
38 // | | | |
39 // stubRoutines.cpp stubRoutines_<arch>.cpp | |
40 // stubRoutines_<os_family>.cpp stubGenerator_<arch>.cpp | |
41 // stubRoutines_<os_arch>.cpp | |
42 // | |
43 // Note 1: The important thing is a clean decoupling between stub | |
44 // entry points (interfacing to the whole vm; i.e., 1-to-n | |
45 // relationship) and stub generators (interfacing only to | |
46 // the entry points implementation; i.e., 1-to-1 relationship). | |
47 // This significantly simplifies changes in the generator | |
48 // structure since the rest of the vm is not affected. | |
49 // | |
50 // Note 2: stubGenerator_<arch>.cpp contains a minimal portion of | |
51 // machine-independent code; namely the generator calls of | |
52 // the generator functions that are used platform-independently. | |
53 // However, it comes with the advantage of having a 1-file | |
54 // implementation of the generator. It should be fairly easy | |
55 // to change, should it become a problem later. | |
56 // | |
57 // Scheme for adding a new entry point: | |
58 // | |
59 // 1. determine if it's a platform-dependent or independent entry point | |
60 // a) if platform independent: make subsequent changes in the independent files | |
61 // b) if platform dependent: make subsequent changes in the dependent files | |
62 // 2. add a private instance variable holding the entry point address | |
63 // 3. add a public accessor function to the instance variable | |
64 // 4. implement the corresponding generator function in the platform-dependent | |
65 // stubGenerator_<arch>.cpp file and call the function in generate_all() of that file | |
66 | |
67 | |
68 class StubRoutines: AllStatic { | |
69 | |
70 public: | |
71 enum platform_independent_constants { | |
72 max_size_of_parameters = 256 // max. parameter size supported by megamorphic lookups | |
73 }; | |
74 | |
75 // Dependencies | |
76 friend class StubGenerator; | |
77 #include "incls/_stubRoutines_pd.hpp.incl" // machine-specific parts | |
78 | |
79 static jint _verify_oop_count; | |
80 static address _verify_oop_subroutine_entry; | |
81 | |
82 static address _call_stub_return_address; // the return PC, when returning to a call stub | |
83 static address _call_stub_entry; | |
84 static address _forward_exception_entry; | |
85 static address _catch_exception_entry; | |
86 static address _throw_AbstractMethodError_entry; | |
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87 static address _throw_IncompatibleClassChangeError_entry; |
0 | 88 static address _throw_ArithmeticException_entry; |
89 static address _throw_NullPointerException_entry; | |
90 static address _throw_NullPointerException_at_call_entry; | |
91 static address _throw_StackOverflowError_entry; | |
92 static address _handler_for_unsafe_access_entry; | |
93 | |
94 static address _atomic_xchg_entry; | |
95 static address _atomic_xchg_ptr_entry; | |
96 static address _atomic_store_entry; | |
97 static address _atomic_store_ptr_entry; | |
98 static address _atomic_cmpxchg_entry; | |
99 static address _atomic_cmpxchg_ptr_entry; | |
100 static address _atomic_cmpxchg_long_entry; | |
101 static address _atomic_add_entry; | |
102 static address _atomic_add_ptr_entry; | |
103 static address _fence_entry; | |
104 static address _d2i_wrapper; | |
105 static address _d2l_wrapper; | |
106 | |
107 static jint _fpu_cntrl_wrd_std; | |
108 static jint _fpu_cntrl_wrd_24; | |
109 static jint _fpu_cntrl_wrd_64; | |
110 static jint _fpu_cntrl_wrd_trunc; | |
111 static jint _mxcsr_std; | |
112 static jint _fpu_subnormal_bias1[3]; | |
113 static jint _fpu_subnormal_bias2[3]; | |
114 | |
115 static BufferBlob* _code1; // code buffer for initial routines | |
116 static BufferBlob* _code2; // code buffer for all other routines | |
117 | |
118 // Leaf routines which implement arraycopy and their addresses | |
119 // arraycopy operands aligned on element type boundary | |
120 static address _jbyte_arraycopy; | |
121 static address _jshort_arraycopy; | |
122 static address _jint_arraycopy; | |
123 static address _jlong_arraycopy; | |
124 static address _oop_arraycopy; | |
125 static address _jbyte_disjoint_arraycopy; | |
126 static address _jshort_disjoint_arraycopy; | |
127 static address _jint_disjoint_arraycopy; | |
128 static address _jlong_disjoint_arraycopy; | |
129 static address _oop_disjoint_arraycopy; | |
130 | |
131 // arraycopy operands aligned on zero'th element boundary | |
132 // These are identical to the ones aligned aligned on an | |
133 // element type boundary, except that they assume that both | |
134 // source and destination are HeapWord aligned. | |
135 static address _arrayof_jbyte_arraycopy; | |
136 static address _arrayof_jshort_arraycopy; | |
137 static address _arrayof_jint_arraycopy; | |
138 static address _arrayof_jlong_arraycopy; | |
139 static address _arrayof_oop_arraycopy; | |
140 static address _arrayof_jbyte_disjoint_arraycopy; | |
141 static address _arrayof_jshort_disjoint_arraycopy; | |
142 static address _arrayof_jint_disjoint_arraycopy; | |
143 static address _arrayof_jlong_disjoint_arraycopy; | |
144 static address _arrayof_oop_disjoint_arraycopy; | |
145 | |
146 // these are recommended but optional: | |
147 static address _checkcast_arraycopy; | |
148 static address _unsafe_arraycopy; | |
149 static address _generic_arraycopy; | |
150 | |
151 public: | |
152 // Initialization/Testing | |
153 static void initialize1(); // must happen before universe::genesis | |
154 static void initialize2(); // must happen after universe::genesis | |
155 | |
156 static bool contains(address addr) { | |
157 return | |
158 (_code1 != NULL && _code1->blob_contains(addr)) || | |
159 (_code2 != NULL && _code2->blob_contains(addr)) ; | |
160 } | |
161 | |
162 // Debugging | |
163 static jint verify_oop_count() { return _verify_oop_count; } | |
164 static jint* verify_oop_count_addr() { return &_verify_oop_count; } | |
165 // a subroutine for debugging the GC | |
166 static address verify_oop_subroutine_entry_address() { return (address)&_verify_oop_subroutine_entry; } | |
167 | |
168 static address catch_exception_entry() { return _catch_exception_entry; } | |
169 | |
170 // Calls to Java | |
171 typedef void (*CallStub)( | |
172 address link, | |
173 intptr_t* result, | |
174 BasicType result_type, | |
175 methodOopDesc* method, | |
176 address entry_point, | |
177 intptr_t* parameters, | |
178 int size_of_parameters, | |
179 TRAPS | |
180 ); | |
181 | |
182 static CallStub call_stub() { return CAST_TO_FN_PTR(CallStub, _call_stub_entry); } | |
183 | |
184 // Exceptions | |
185 static address forward_exception_entry() { return _forward_exception_entry; } | |
186 // Implicit exceptions | |
187 static address throw_AbstractMethodError_entry() { return _throw_AbstractMethodError_entry; } | |
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188 static address throw_IncompatibleClassChangeError_entry(){ return _throw_IncompatibleClassChangeError_entry; } |
0 | 189 static address throw_ArithmeticException_entry() { return _throw_ArithmeticException_entry; } |
190 static address throw_NullPointerException_entry() { return _throw_NullPointerException_entry; } | |
191 static address throw_NullPointerException_at_call_entry(){ return _throw_NullPointerException_at_call_entry; } | |
192 static address throw_StackOverflowError_entry() { return _throw_StackOverflowError_entry; } | |
193 | |
194 // Exceptions during unsafe access - should throw Java exception rather | |
195 // than crash. | |
196 static address handler_for_unsafe_access() { return _handler_for_unsafe_access_entry; } | |
197 | |
198 static address atomic_xchg_entry() { return _atomic_xchg_entry; } | |
199 static address atomic_xchg_ptr_entry() { return _atomic_xchg_ptr_entry; } | |
200 static address atomic_store_entry() { return _atomic_store_entry; } | |
201 static address atomic_store_ptr_entry() { return _atomic_store_ptr_entry; } | |
202 static address atomic_cmpxchg_entry() { return _atomic_cmpxchg_entry; } | |
203 static address atomic_cmpxchg_ptr_entry() { return _atomic_cmpxchg_ptr_entry; } | |
204 static address atomic_cmpxchg_long_entry() { return _atomic_cmpxchg_long_entry; } | |
205 static address atomic_add_entry() { return _atomic_add_entry; } | |
206 static address atomic_add_ptr_entry() { return _atomic_add_ptr_entry; } | |
207 static address fence_entry() { return _fence_entry; } | |
208 | |
209 static address d2i_wrapper() { return _d2i_wrapper; } | |
210 static address d2l_wrapper() { return _d2l_wrapper; } | |
211 static jint fpu_cntrl_wrd_std() { return _fpu_cntrl_wrd_std; } | |
212 static address addr_fpu_cntrl_wrd_std() { return (address)&_fpu_cntrl_wrd_std; } | |
213 static address addr_fpu_cntrl_wrd_24() { return (address)&_fpu_cntrl_wrd_24; } | |
214 static address addr_fpu_cntrl_wrd_64() { return (address)&_fpu_cntrl_wrd_64; } | |
215 static address addr_fpu_cntrl_wrd_trunc() { return (address)&_fpu_cntrl_wrd_trunc; } | |
216 static address addr_mxcsr_std() { return (address)&_mxcsr_std; } | |
217 static address addr_fpu_subnormal_bias1() { return (address)&_fpu_subnormal_bias1; } | |
218 static address addr_fpu_subnormal_bias2() { return (address)&_fpu_subnormal_bias2; } | |
219 | |
220 | |
221 static address jbyte_arraycopy() { return _jbyte_arraycopy; } | |
222 static address jshort_arraycopy() { return _jshort_arraycopy; } | |
223 static address jint_arraycopy() { return _jint_arraycopy; } | |
224 static address jlong_arraycopy() { return _jlong_arraycopy; } | |
225 static address oop_arraycopy() { return _oop_arraycopy; } | |
226 static address jbyte_disjoint_arraycopy() { return _jbyte_disjoint_arraycopy; } | |
227 static address jshort_disjoint_arraycopy() { return _jshort_disjoint_arraycopy; } | |
228 static address jint_disjoint_arraycopy() { return _jint_disjoint_arraycopy; } | |
229 static address jlong_disjoint_arraycopy() { return _jlong_disjoint_arraycopy; } | |
230 static address oop_disjoint_arraycopy() { return _oop_disjoint_arraycopy; } | |
231 | |
232 static address arrayof_jbyte_arraycopy() { return _arrayof_jbyte_arraycopy; } | |
233 static address arrayof_jshort_arraycopy() { return _arrayof_jshort_arraycopy; } | |
234 static address arrayof_jint_arraycopy() { return _arrayof_jint_arraycopy; } | |
235 static address arrayof_jlong_arraycopy() { return _arrayof_jlong_arraycopy; } | |
236 static address arrayof_oop_arraycopy() { return _arrayof_oop_arraycopy; } | |
237 | |
238 static address arrayof_jbyte_disjoint_arraycopy() { return _arrayof_jbyte_disjoint_arraycopy; } | |
239 static address arrayof_jshort_disjoint_arraycopy() { return _arrayof_jshort_disjoint_arraycopy; } | |
240 static address arrayof_jint_disjoint_arraycopy() { return _arrayof_jint_disjoint_arraycopy; } | |
241 static address arrayof_jlong_disjoint_arraycopy() { return _arrayof_jlong_disjoint_arraycopy; } | |
242 static address arrayof_oop_disjoint_arraycopy() { return _arrayof_oop_disjoint_arraycopy; } | |
243 | |
244 static address checkcast_arraycopy() { return _checkcast_arraycopy; } | |
245 static address unsafe_arraycopy() { return _unsafe_arraycopy; } | |
246 static address generic_arraycopy() { return _generic_arraycopy; } | |
247 | |
248 // | |
249 // Default versions of the above arraycopy functions for platforms which do | |
250 // not have specialized versions | |
251 // | |
252 static void jbyte_copy (jbyte* src, jbyte* dest, size_t count); | |
253 static void jshort_copy(jshort* src, jshort* dest, size_t count); | |
254 static void jint_copy (jint* src, jint* dest, size_t count); | |
255 static void jlong_copy (jlong* src, jlong* dest, size_t count); | |
256 static void oop_copy (oop* src, oop* dest, size_t count); | |
257 | |
258 static void arrayof_jbyte_copy (HeapWord* src, HeapWord* dest, size_t count); | |
259 static void arrayof_jshort_copy(HeapWord* src, HeapWord* dest, size_t count); | |
260 static void arrayof_jint_copy (HeapWord* src, HeapWord* dest, size_t count); | |
261 static void arrayof_jlong_copy (HeapWord* src, HeapWord* dest, size_t count); | |
262 static void arrayof_oop_copy (HeapWord* src, HeapWord* dest, size_t count); | |
263 }; |