Mercurial > hg > truffle
annotate src/share/vm/runtime/stubRoutines.hpp @ 11239:6c098f64a7a6
added support for handling volatile registers across native runtime calls
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 07 Aug 2013 01:52:44 +0200 |
parents | 6b0fd0964b87 |
children | d8041d695d19 |
rev | line source |
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0 | 1 /* |
10405 | 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_RUNTIME_STUBROUTINES_HPP |
26 #define SHARE_VM_RUNTIME_STUBROUTINES_HPP | |
27 | |
28 #include "code/codeBlob.hpp" | |
29 #include "memory/allocation.hpp" | |
30 #include "runtime/frame.hpp" | |
31 #include "runtime/mutexLocker.hpp" | |
32 #include "runtime/stubCodeGenerator.hpp" | |
33 #include "utilities/top.hpp" | |
34 #ifdef TARGET_ARCH_x86 | |
35 # include "nativeInst_x86.hpp" | |
36 #endif | |
37 #ifdef TARGET_ARCH_sparc | |
38 # include "nativeInst_sparc.hpp" | |
39 #endif | |
40 #ifdef TARGET_ARCH_zero | |
41 # include "nativeInst_zero.hpp" | |
42 #endif | |
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43 #ifdef TARGET_ARCH_arm |
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44 # include "nativeInst_arm.hpp" |
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45 #endif |
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46 #ifdef TARGET_ARCH_ppc |
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47 # include "nativeInst_ppc.hpp" |
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48 #endif |
1972 | 49 |
0 | 50 // StubRoutines provides entry points to assembly routines used by |
51 // compiled code and the run-time system. Platform-specific entry | |
52 // points are defined in the platform-specific inner class. | |
53 // | |
54 // Class scheme: | |
55 // | |
56 // platform-independent platform-dependent | |
57 // | |
58 // stubRoutines.hpp <-- included -- stubRoutines_<arch>.hpp | |
59 // ^ ^ | |
60 // | | | |
61 // implements implements | |
62 // | | | |
63 // | | | |
64 // stubRoutines.cpp stubRoutines_<arch>.cpp | |
65 // stubRoutines_<os_family>.cpp stubGenerator_<arch>.cpp | |
66 // stubRoutines_<os_arch>.cpp | |
67 // | |
68 // Note 1: The important thing is a clean decoupling between stub | |
69 // entry points (interfacing to the whole vm; i.e., 1-to-n | |
70 // relationship) and stub generators (interfacing only to | |
71 // the entry points implementation; i.e., 1-to-1 relationship). | |
72 // This significantly simplifies changes in the generator | |
73 // structure since the rest of the vm is not affected. | |
74 // | |
75 // Note 2: stubGenerator_<arch>.cpp contains a minimal portion of | |
76 // machine-independent code; namely the generator calls of | |
77 // the generator functions that are used platform-independently. | |
78 // However, it comes with the advantage of having a 1-file | |
79 // implementation of the generator. It should be fairly easy | |
80 // to change, should it become a problem later. | |
81 // | |
82 // Scheme for adding a new entry point: | |
83 // | |
84 // 1. determine if it's a platform-dependent or independent entry point | |
85 // a) if platform independent: make subsequent changes in the independent files | |
86 // b) if platform dependent: make subsequent changes in the dependent files | |
87 // 2. add a private instance variable holding the entry point address | |
88 // 3. add a public accessor function to the instance variable | |
89 // 4. implement the corresponding generator function in the platform-dependent | |
90 // stubGenerator_<arch>.cpp file and call the function in generate_all() of that file | |
91 | |
92 | |
93 class StubRoutines: AllStatic { | |
94 | |
95 public: | |
96 enum platform_independent_constants { | |
97 max_size_of_parameters = 256 // max. parameter size supported by megamorphic lookups | |
98 }; | |
99 | |
100 // Dependencies | |
101 friend class StubGenerator; | |
1972 | 102 #ifdef TARGET_ARCH_MODEL_x86_32 |
103 # include "stubRoutines_x86_32.hpp" | |
104 #endif | |
105 #ifdef TARGET_ARCH_MODEL_x86_64 | |
106 # include "stubRoutines_x86_64.hpp" | |
107 #endif | |
108 #ifdef TARGET_ARCH_MODEL_sparc | |
109 # include "stubRoutines_sparc.hpp" | |
110 #endif | |
111 #ifdef TARGET_ARCH_MODEL_zero | |
112 # include "stubRoutines_zero.hpp" | |
113 #endif | |
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114 #ifdef TARGET_ARCH_MODEL_arm |
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115 # include "stubRoutines_arm.hpp" |
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116 #endif |
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117 #ifdef TARGET_ARCH_MODEL_ppc |
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118 # include "stubRoutines_ppc.hpp" |
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119 #endif |
1972 | 120 |
0 | 121 |
122 static jint _verify_oop_count; | |
123 static address _verify_oop_subroutine_entry; | |
124 | |
125 static address _call_stub_return_address; // the return PC, when returning to a call stub | |
126 static address _call_stub_entry; | |
127 static address _forward_exception_entry; | |
128 static address _catch_exception_entry; | |
129 static address _throw_AbstractMethodError_entry; | |
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130 static address _throw_IncompatibleClassChangeError_entry; |
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131 static address _throw_InvalidInstalledCodeException_entry; |
0 | 132 static address _throw_NullPointerException_at_call_entry; |
133 static address _throw_StackOverflowError_entry; | |
134 static address _handler_for_unsafe_access_entry; | |
135 | |
136 static address _atomic_xchg_entry; | |
137 static address _atomic_xchg_ptr_entry; | |
138 static address _atomic_store_entry; | |
139 static address _atomic_store_ptr_entry; | |
140 static address _atomic_cmpxchg_entry; | |
141 static address _atomic_cmpxchg_ptr_entry; | |
142 static address _atomic_cmpxchg_long_entry; | |
143 static address _atomic_add_entry; | |
144 static address _atomic_add_ptr_entry; | |
145 static address _fence_entry; | |
146 static address _d2i_wrapper; | |
147 static address _d2l_wrapper; | |
148 | |
149 static jint _fpu_cntrl_wrd_std; | |
150 static jint _fpu_cntrl_wrd_24; | |
151 static jint _fpu_cntrl_wrd_64; | |
152 static jint _fpu_cntrl_wrd_trunc; | |
153 static jint _mxcsr_std; | |
154 static jint _fpu_subnormal_bias1[3]; | |
155 static jint _fpu_subnormal_bias2[3]; | |
156 | |
157 static BufferBlob* _code1; // code buffer for initial routines | |
158 static BufferBlob* _code2; // code buffer for all other routines | |
159 | |
160 // Leaf routines which implement arraycopy and their addresses | |
161 // arraycopy operands aligned on element type boundary | |
162 static address _jbyte_arraycopy; | |
163 static address _jshort_arraycopy; | |
164 static address _jint_arraycopy; | |
165 static address _jlong_arraycopy; | |
2324 | 166 static address _oop_arraycopy, _oop_arraycopy_uninit; |
0 | 167 static address _jbyte_disjoint_arraycopy; |
168 static address _jshort_disjoint_arraycopy; | |
169 static address _jint_disjoint_arraycopy; | |
170 static address _jlong_disjoint_arraycopy; | |
2324 | 171 static address _oop_disjoint_arraycopy, _oop_disjoint_arraycopy_uninit; |
0 | 172 |
173 // arraycopy operands aligned on zero'th element boundary | |
174 // These are identical to the ones aligned aligned on an | |
175 // element type boundary, except that they assume that both | |
176 // source and destination are HeapWord aligned. | |
177 static address _arrayof_jbyte_arraycopy; | |
178 static address _arrayof_jshort_arraycopy; | |
179 static address _arrayof_jint_arraycopy; | |
180 static address _arrayof_jlong_arraycopy; | |
2324 | 181 static address _arrayof_oop_arraycopy, _arrayof_oop_arraycopy_uninit; |
0 | 182 static address _arrayof_jbyte_disjoint_arraycopy; |
183 static address _arrayof_jshort_disjoint_arraycopy; | |
184 static address _arrayof_jint_disjoint_arraycopy; | |
185 static address _arrayof_jlong_disjoint_arraycopy; | |
2324 | 186 static address _arrayof_oop_disjoint_arraycopy, _arrayof_oop_disjoint_arraycopy_uninit; |
0 | 187 |
188 // these are recommended but optional: | |
2324 | 189 static address _checkcast_arraycopy, _checkcast_arraycopy_uninit; |
0 | 190 static address _unsafe_arraycopy; |
191 static address _generic_arraycopy; | |
192 | |
1763 | 193 static address _jbyte_fill; |
194 static address _jshort_fill; | |
195 static address _jint_fill; | |
196 static address _arrayof_jbyte_fill; | |
197 static address _arrayof_jshort_fill; | |
198 static address _arrayof_jint_fill; | |
199 | |
3892 | 200 // zero heap space aligned to jlong (8 bytes) |
201 static address _zero_aligned_words; | |
202 | |
6894 | 203 static address _aescrypt_encryptBlock; |
204 static address _aescrypt_decryptBlock; | |
205 static address _cipherBlockChaining_encryptAESCrypt; | |
206 static address _cipherBlockChaining_decryptAESCrypt; | |
207 | |
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208 static address _updateBytesCRC32; |
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209 static address _crc_table_adr; |
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210 |
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211 // These are versions of the java.lang.Math methods which perform |
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212 // the same operations as the intrinsic version. They are used for |
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213 // constant folding in the compiler to ensure equivalence. If the |
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214 // intrinsic version returns the same result as the strict version |
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215 // then they can be set to the appropriate function from |
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216 // SharedRuntime. |
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217 static double (*_intrinsic_log)(double); |
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218 static double (*_intrinsic_log10)(double); |
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219 static double (*_intrinsic_exp)(double); |
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220 static double (*_intrinsic_pow)(double, double); |
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221 static double (*_intrinsic_sin)(double); |
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222 static double (*_intrinsic_cos)(double); |
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223 static double (*_intrinsic_tan)(double); |
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224 |
11127 | 225 // Safefetch stubs. |
226 static address _safefetch32_entry; | |
227 static address _safefetch32_fault_pc; | |
228 static address _safefetch32_continuation_pc; | |
229 static address _safefetchN_entry; | |
230 static address _safefetchN_fault_pc; | |
231 static address _safefetchN_continuation_pc; | |
232 | |
0 | 233 public: |
234 // Initialization/Testing | |
235 static void initialize1(); // must happen before universe::genesis | |
236 static void initialize2(); // must happen after universe::genesis | |
237 | |
10405 | 238 static bool is_stub_code(address addr) { return contains(addr); } |
239 | |
0 | 240 static bool contains(address addr) { |
241 return | |
242 (_code1 != NULL && _code1->blob_contains(addr)) || | |
243 (_code2 != NULL && _code2->blob_contains(addr)) ; | |
244 } | |
245 | |
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246 static CodeBlob* code1() { return _code1; } |
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247 static CodeBlob* code2() { return _code2; } |
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248 |
0 | 249 // Debugging |
250 static jint verify_oop_count() { return _verify_oop_count; } | |
251 static jint* verify_oop_count_addr() { return &_verify_oop_count; } | |
252 // a subroutine for debugging the GC | |
253 static address verify_oop_subroutine_entry_address() { return (address)&_verify_oop_subroutine_entry; } | |
254 | |
255 static address catch_exception_entry() { return _catch_exception_entry; } | |
256 | |
257 // Calls to Java | |
258 typedef void (*CallStub)( | |
259 address link, | |
260 intptr_t* result, | |
261 BasicType result_type, | |
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262 Method* method, |
0 | 263 address entry_point, |
264 intptr_t* parameters, | |
265 int size_of_parameters, | |
266 TRAPS | |
267 ); | |
268 | |
269 static CallStub call_stub() { return CAST_TO_FN_PTR(CallStub, _call_stub_entry); } | |
270 | |
271 // Exceptions | |
272 static address forward_exception_entry() { return _forward_exception_entry; } | |
273 // Implicit exceptions | |
274 static address throw_AbstractMethodError_entry() { return _throw_AbstractMethodError_entry; } | |
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275 static address throw_IncompatibleClassChangeError_entry(){ return _throw_IncompatibleClassChangeError_entry; } |
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276 static address throw_InvalidInstalledCodeException_entry(){ return _throw_InvalidInstalledCodeException_entry; } |
0 | 277 static address throw_NullPointerException_at_call_entry(){ return _throw_NullPointerException_at_call_entry; } |
278 static address throw_StackOverflowError_entry() { return _throw_StackOverflowError_entry; } | |
279 | |
280 // Exceptions during unsafe access - should throw Java exception rather | |
281 // than crash. | |
282 static address handler_for_unsafe_access() { return _handler_for_unsafe_access_entry; } | |
283 | |
284 static address atomic_xchg_entry() { return _atomic_xchg_entry; } | |
285 static address atomic_xchg_ptr_entry() { return _atomic_xchg_ptr_entry; } | |
286 static address atomic_store_entry() { return _atomic_store_entry; } | |
287 static address atomic_store_ptr_entry() { return _atomic_store_ptr_entry; } | |
288 static address atomic_cmpxchg_entry() { return _atomic_cmpxchg_entry; } | |
289 static address atomic_cmpxchg_ptr_entry() { return _atomic_cmpxchg_ptr_entry; } | |
290 static address atomic_cmpxchg_long_entry() { return _atomic_cmpxchg_long_entry; } | |
291 static address atomic_add_entry() { return _atomic_add_entry; } | |
292 static address atomic_add_ptr_entry() { return _atomic_add_ptr_entry; } | |
293 static address fence_entry() { return _fence_entry; } | |
294 | |
295 static address d2i_wrapper() { return _d2i_wrapper; } | |
296 static address d2l_wrapper() { return _d2l_wrapper; } | |
297 static jint fpu_cntrl_wrd_std() { return _fpu_cntrl_wrd_std; } | |
298 static address addr_fpu_cntrl_wrd_std() { return (address)&_fpu_cntrl_wrd_std; } | |
299 static address addr_fpu_cntrl_wrd_24() { return (address)&_fpu_cntrl_wrd_24; } | |
300 static address addr_fpu_cntrl_wrd_64() { return (address)&_fpu_cntrl_wrd_64; } | |
301 static address addr_fpu_cntrl_wrd_trunc() { return (address)&_fpu_cntrl_wrd_trunc; } | |
302 static address addr_mxcsr_std() { return (address)&_mxcsr_std; } | |
303 static address addr_fpu_subnormal_bias1() { return (address)&_fpu_subnormal_bias1; } | |
304 static address addr_fpu_subnormal_bias2() { return (address)&_fpu_subnormal_bias2; } | |
305 | |
306 | |
2446 | 307 static address select_arraycopy_function(BasicType t, bool aligned, bool disjoint, const char* &name, bool dest_uninitialized); |
308 | |
0 | 309 static address jbyte_arraycopy() { return _jbyte_arraycopy; } |
310 static address jshort_arraycopy() { return _jshort_arraycopy; } | |
311 static address jint_arraycopy() { return _jint_arraycopy; } | |
312 static address jlong_arraycopy() { return _jlong_arraycopy; } | |
2324 | 313 static address oop_arraycopy(bool dest_uninitialized = false) { |
314 return dest_uninitialized ? _oop_arraycopy_uninit : _oop_arraycopy; | |
315 } | |
0 | 316 static address jbyte_disjoint_arraycopy() { return _jbyte_disjoint_arraycopy; } |
317 static address jshort_disjoint_arraycopy() { return _jshort_disjoint_arraycopy; } | |
318 static address jint_disjoint_arraycopy() { return _jint_disjoint_arraycopy; } | |
319 static address jlong_disjoint_arraycopy() { return _jlong_disjoint_arraycopy; } | |
2324 | 320 static address oop_disjoint_arraycopy(bool dest_uninitialized = false) { |
321 return dest_uninitialized ? _oop_disjoint_arraycopy_uninit : _oop_disjoint_arraycopy; | |
322 } | |
0 | 323 |
324 static address arrayof_jbyte_arraycopy() { return _arrayof_jbyte_arraycopy; } | |
325 static address arrayof_jshort_arraycopy() { return _arrayof_jshort_arraycopy; } | |
326 static address arrayof_jint_arraycopy() { return _arrayof_jint_arraycopy; } | |
327 static address arrayof_jlong_arraycopy() { return _arrayof_jlong_arraycopy; } | |
2324 | 328 static address arrayof_oop_arraycopy(bool dest_uninitialized = false) { |
329 return dest_uninitialized ? _arrayof_oop_arraycopy_uninit : _arrayof_oop_arraycopy; | |
330 } | |
0 | 331 |
332 static address arrayof_jbyte_disjoint_arraycopy() { return _arrayof_jbyte_disjoint_arraycopy; } | |
333 static address arrayof_jshort_disjoint_arraycopy() { return _arrayof_jshort_disjoint_arraycopy; } | |
334 static address arrayof_jint_disjoint_arraycopy() { return _arrayof_jint_disjoint_arraycopy; } | |
335 static address arrayof_jlong_disjoint_arraycopy() { return _arrayof_jlong_disjoint_arraycopy; } | |
2324 | 336 static address arrayof_oop_disjoint_arraycopy(bool dest_uninitialized = false) { |
337 return dest_uninitialized ? _arrayof_oop_disjoint_arraycopy_uninit : _arrayof_oop_disjoint_arraycopy; | |
338 } | |
0 | 339 |
2324 | 340 static address checkcast_arraycopy(bool dest_uninitialized = false) { |
341 return dest_uninitialized ? _checkcast_arraycopy_uninit : _checkcast_arraycopy; | |
342 } | |
0 | 343 static address unsafe_arraycopy() { return _unsafe_arraycopy; } |
344 static address generic_arraycopy() { return _generic_arraycopy; } | |
345 | |
1763 | 346 static address jbyte_fill() { return _jbyte_fill; } |
347 static address jshort_fill() { return _jshort_fill; } | |
348 static address jint_fill() { return _jint_fill; } | |
349 static address arrayof_jbyte_fill() { return _arrayof_jbyte_fill; } | |
350 static address arrayof_jshort_fill() { return _arrayof_jshort_fill; } | |
351 static address arrayof_jint_fill() { return _arrayof_jint_fill; } | |
352 | |
6894 | 353 static address aescrypt_encryptBlock() { return _aescrypt_encryptBlock; } |
354 static address aescrypt_decryptBlock() { return _aescrypt_decryptBlock; } | |
355 static address cipherBlockChaining_encryptAESCrypt() { return _cipherBlockChaining_encryptAESCrypt; } | |
356 static address cipherBlockChaining_decryptAESCrypt() { return _cipherBlockChaining_decryptAESCrypt; } | |
357 | |
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358 static address updateBytesCRC32() { return _updateBytesCRC32; } |
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359 static address crc_table_addr() { return _crc_table_adr; } |
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360 |
1763 | 361 static address select_fill_function(BasicType t, bool aligned, const char* &name); |
362 | |
3892 | 363 static address zero_aligned_words() { return _zero_aligned_words; } |
1763 | 364 |
1174
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365 static double intrinsic_log(double d) { |
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366 assert(_intrinsic_log != NULL, "must be defined"); |
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367 return _intrinsic_log(d); |
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368 } |
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369 static double intrinsic_log10(double d) { |
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370 assert(_intrinsic_log != NULL, "must be defined"); |
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371 return _intrinsic_log10(d); |
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372 } |
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373 static double intrinsic_exp(double d) { |
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374 assert(_intrinsic_exp != NULL, "must be defined"); |
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375 return _intrinsic_exp(d); |
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376 } |
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377 static double intrinsic_pow(double d, double d2) { |
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378 assert(_intrinsic_pow != NULL, "must be defined"); |
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379 return _intrinsic_pow(d, d2); |
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380 } |
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381 static double intrinsic_sin(double d) { |
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382 assert(_intrinsic_sin != NULL, "must be defined"); |
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383 return _intrinsic_sin(d); |
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384 } |
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385 static double intrinsic_cos(double d) { |
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386 assert(_intrinsic_cos != NULL, "must be defined"); |
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387 return _intrinsic_cos(d); |
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388 } |
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389 static double intrinsic_tan(double d) { |
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390 assert(_intrinsic_tan != NULL, "must be defined"); |
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391 return _intrinsic_tan(d); |
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392 } |
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393 |
0 | 394 // |
11127 | 395 // Safefetch stub support |
396 // | |
397 | |
398 typedef int (*SafeFetch32Stub)(int* adr, int errValue); | |
399 typedef intptr_t (*SafeFetchNStub) (intptr_t* adr, intptr_t errValue); | |
400 | |
401 static SafeFetch32Stub SafeFetch32_stub() { return CAST_TO_FN_PTR(SafeFetch32Stub, _safefetch32_entry); } | |
402 static SafeFetchNStub SafeFetchN_stub() { return CAST_TO_FN_PTR(SafeFetchNStub, _safefetchN_entry); } | |
403 | |
404 static bool is_safefetch_fault(address pc) { | |
405 return pc != NULL && | |
406 (pc == _safefetch32_fault_pc || | |
407 pc == _safefetchN_fault_pc); | |
408 } | |
409 | |
410 static address continuation_for_safefetch_fault(address pc) { | |
411 assert(_safefetch32_continuation_pc != NULL && | |
412 _safefetchN_continuation_pc != NULL, | |
413 "not initialized"); | |
414 | |
415 if (pc == _safefetch32_fault_pc) return _safefetch32_continuation_pc; | |
416 if (pc == _safefetchN_fault_pc) return _safefetchN_continuation_pc; | |
417 | |
418 ShouldNotReachHere(); | |
419 return NULL; | |
420 } | |
421 | |
422 // | |
0 | 423 // Default versions of the above arraycopy functions for platforms which do |
424 // not have specialized versions | |
425 // | |
2324 | 426 static void jbyte_copy (jbyte* src, jbyte* dest, size_t count); |
427 static void jshort_copy (jshort* src, jshort* dest, size_t count); | |
428 static void jint_copy (jint* src, jint* dest, size_t count); | |
429 static void jlong_copy (jlong* src, jlong* dest, size_t count); | |
430 static void oop_copy (oop* src, oop* dest, size_t count); | |
431 static void oop_copy_uninit(oop* src, oop* dest, size_t count); | |
0 | 432 |
2324 | 433 static void arrayof_jbyte_copy (HeapWord* src, HeapWord* dest, size_t count); |
434 static void arrayof_jshort_copy (HeapWord* src, HeapWord* dest, size_t count); | |
435 static void arrayof_jint_copy (HeapWord* src, HeapWord* dest, size_t count); | |
436 static void arrayof_jlong_copy (HeapWord* src, HeapWord* dest, size_t count); | |
437 static void arrayof_oop_copy (HeapWord* src, HeapWord* dest, size_t count); | |
438 static void arrayof_oop_copy_uninit(HeapWord* src, HeapWord* dest, size_t count); | |
0 | 439 }; |
1972 | 440 |
11127 | 441 // Safefetch allows to load a value from a location that's not known |
442 // to be valid. If the load causes a fault, the error value is returned. | |
443 inline int SafeFetch32(int* adr, int errValue) { | |
444 assert(StubRoutines::SafeFetch32_stub(), "stub not yet generated"); | |
445 return StubRoutines::SafeFetch32_stub()(adr, errValue); | |
446 } | |
447 inline intptr_t SafeFetchN(intptr_t* adr, intptr_t errValue) { | |
448 assert(StubRoutines::SafeFetchN_stub(), "stub not yet generated"); | |
449 return StubRoutines::SafeFetchN_stub()(adr, errValue); | |
450 } | |
451 | |
1972 | 452 #endif // SHARE_VM_RUNTIME_STUBROUTINES_HPP |