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comparison: src/share/vm/runtime/stubRoutines.cpp

src/share/vm/runtime/stubRoutines.cpp

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1 /*
2 * Copyright (c) 1997, 2013, 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 #include "precompiled.hpp"
26 #include "asm/codeBuffer.hpp"
27 #include "memory/resourceArea.hpp"
28 #include "oops/oop.inline.hpp"
29 #include "runtime/interfaceSupport.hpp"
30 #include "runtime/sharedRuntime.hpp"
31 #include "runtime/stubRoutines.hpp"
32 #include "runtime/timer.hpp"
33 #include "utilities/copy.hpp"
34 #ifdef COMPILER2
35 #include "opto/runtime.hpp"
36 #endif
37
38
39 // Implementation of StubRoutines - for a description
40 // of how to extend it, see the header file.
41
42 // Class Variables
43
44 BufferBlob* StubRoutines::_code1 = NULL;
45 BufferBlob* StubRoutines::_code2 = NULL;
46
47 address StubRoutines::_call_stub_return_address = NULL;
48 address StubRoutines::_call_stub_entry = NULL;
49
50 address StubRoutines::_catch_exception_entry = NULL;
51 address StubRoutines::_forward_exception_entry = NULL;
52 address StubRoutines::_throw_AbstractMethodError_entry = NULL;
53 address StubRoutines::_throw_IncompatibleClassChangeError_entry = NULL;
54 address StubRoutines::_throw_NullPointerException_at_call_entry = NULL;
55 address StubRoutines::_throw_StackOverflowError_entry = NULL;
56 address StubRoutines::_handler_for_unsafe_access_entry = NULL;
57 jint StubRoutines::_verify_oop_count = 0;
58 address StubRoutines::_verify_oop_subroutine_entry = NULL;
59 address StubRoutines::_atomic_xchg_entry = NULL;
60 address StubRoutines::_atomic_xchg_ptr_entry = NULL;
61 address StubRoutines::_atomic_store_entry = NULL;
62 address StubRoutines::_atomic_store_ptr_entry = NULL;
63 address StubRoutines::_atomic_cmpxchg_entry = NULL;
64 address StubRoutines::_atomic_cmpxchg_ptr_entry = NULL;
65 address StubRoutines::_atomic_cmpxchg_long_entry = NULL;
66 address StubRoutines::_atomic_add_entry = NULL;
67 address StubRoutines::_atomic_add_ptr_entry = NULL;
68 address StubRoutines::_fence_entry = NULL;
69 address StubRoutines::_d2i_wrapper = NULL;
70 address StubRoutines::_d2l_wrapper = NULL;
71
72 jint StubRoutines::_fpu_cntrl_wrd_std = 0;
73 jint StubRoutines::_fpu_cntrl_wrd_24 = 0;
74 jint StubRoutines::_fpu_cntrl_wrd_64 = 0;
75 jint StubRoutines::_fpu_cntrl_wrd_trunc = 0;
76 jint StubRoutines::_mxcsr_std = 0;
77 jint StubRoutines::_fpu_subnormal_bias1[3] = { 0, 0, 0 };
78 jint StubRoutines::_fpu_subnormal_bias2[3] = { 0, 0, 0 };
79
80 // Compiled code entry points default values
81 // The default functions don't have separate disjoint versions.
82 address StubRoutines::_jbyte_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jbyte_copy);
83 address StubRoutines::_jshort_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jshort_copy);
84 address StubRoutines::_jint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jint_copy);
85 address StubRoutines::_jlong_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jlong_copy);
86 address StubRoutines::_oop_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy);
87 address StubRoutines::_oop_arraycopy_uninit = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy_uninit);
88 address StubRoutines::_jbyte_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jbyte_copy);
89 address StubRoutines::_jshort_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jshort_copy);
90 address StubRoutines::_jint_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jint_copy);
91 address StubRoutines::_jlong_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jlong_copy);
92 address StubRoutines::_oop_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy);
93 address StubRoutines::_oop_disjoint_arraycopy_uninit = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy_uninit);
94
95 address StubRoutines::_arrayof_jbyte_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jbyte_copy);
96 address StubRoutines::_arrayof_jshort_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jshort_copy);
97 address StubRoutines::_arrayof_jint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jint_copy);
98 address StubRoutines::_arrayof_jlong_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jlong_copy);
99 address StubRoutines::_arrayof_oop_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy);
100 address StubRoutines::_arrayof_oop_arraycopy_uninit = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy_uninit);
101 address StubRoutines::_arrayof_jbyte_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jbyte_copy);
102 address StubRoutines::_arrayof_jshort_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jshort_copy);
103 address StubRoutines::_arrayof_jint_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jint_copy);
104 address StubRoutines::_arrayof_jlong_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jlong_copy);
105 address StubRoutines::_arrayof_oop_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy);
106 address StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy_uninit);
107
108 address StubRoutines::_zero_aligned_words = CAST_FROM_FN_PTR(address, Copy::zero_to_words);
109
110 address StubRoutines::_checkcast_arraycopy = NULL;
111 address StubRoutines::_checkcast_arraycopy_uninit = NULL;
112 address StubRoutines::_unsafe_arraycopy = NULL;
113 address StubRoutines::_generic_arraycopy = NULL;
114
115
116 address StubRoutines::_jbyte_fill;
117 address StubRoutines::_jshort_fill;
118 address StubRoutines::_jint_fill;
119 address StubRoutines::_arrayof_jbyte_fill;
120 address StubRoutines::_arrayof_jshort_fill;
121 address StubRoutines::_arrayof_jint_fill;
122
123 address StubRoutines::_aescrypt_encryptBlock = NULL;
124 address StubRoutines::_aescrypt_decryptBlock = NULL;
125 address StubRoutines::_cipherBlockChaining_encryptAESCrypt = NULL;
126 address StubRoutines::_cipherBlockChaining_decryptAESCrypt = NULL;
127
128 address StubRoutines::_updateBytesCRC32 = NULL;
129 address StubRoutines::_crc_table_adr = NULL;
130
131 double (* StubRoutines::_intrinsic_log )(double) = NULL;
132 double (* StubRoutines::_intrinsic_log10 )(double) = NULL;
133 double (* StubRoutines::_intrinsic_exp )(double) = NULL;
134 double (* StubRoutines::_intrinsic_pow )(double, double) = NULL;
135 double (* StubRoutines::_intrinsic_sin )(double) = NULL;
136 double (* StubRoutines::_intrinsic_cos )(double) = NULL;
137 double (* StubRoutines::_intrinsic_tan )(double) = NULL;
138
139 address StubRoutines::_safefetch32_entry = NULL;
140 address StubRoutines::_safefetch32_fault_pc = NULL;
141 address StubRoutines::_safefetch32_continuation_pc = NULL;
142 address StubRoutines::_safefetchN_entry = NULL;
143 address StubRoutines::_safefetchN_fault_pc = NULL;
144 address StubRoutines::_safefetchN_continuation_pc = NULL;
145
146 // Initialization
147 //
148 // Note: to break cycle with universe initialization, stubs are generated in two phases.
149 // The first one generates stubs needed during universe init (e.g., _handle_must_compile_first_entry).
150 // The second phase includes all other stubs (which may depend on universe being initialized.)
151
152 extern void StubGenerator_generate(CodeBuffer* code, bool all); // only interface to generators
153
154 void StubRoutines::initialize1() {
155 if (_code1 == NULL) {
156 ResourceMark rm;
157 TraceTime timer("StubRoutines generation 1", TraceStartupTime);
158 _code1 = BufferBlob::create("StubRoutines (1)", code_size1);
159 if (_code1 == NULL) {
160 vm_exit_out_of_memory(code_size1, OOM_MALLOC_ERROR, "CodeCache: no room for StubRoutines (1)");
161 }
162 CodeBuffer buffer(_code1);
163 StubGenerator_generate(&buffer, false);
164 }
165 }
166
167
168 #ifdef ASSERT
169 typedef void (*arraycopy_fn)(address src, address dst, int count);
170
171 // simple tests of generated arraycopy functions
172 static void test_arraycopy_func(address func, int alignment) {
173 int v = 0xcc;
174 int v2 = 0x11;
175 jlong lbuffer[8];
176 jlong lbuffer2[8];
177 address fbuffer = (address) lbuffer;
178 address fbuffer2 = (address) lbuffer2;
179 unsigned int i;
180 for (i = 0; i < sizeof(lbuffer); i++) {
181 fbuffer[i] = v; fbuffer2[i] = v2;
182 }
183 // C++ does not guarantee jlong[] array alignment to 8 bytes.
184 // Use middle of array to check that memory before it is not modified.
185 address buffer = (address) round_to((intptr_t)&lbuffer[4], BytesPerLong);
186 address buffer2 = (address) round_to((intptr_t)&lbuffer2[4], BytesPerLong);
187 // do an aligned copy
188 ((arraycopy_fn)func)(buffer, buffer2, 0);
189 for (i = 0; i < sizeof(lbuffer); i++) {
190 assert(fbuffer[i] == v && fbuffer2[i] == v2, "shouldn't have copied anything");
191 }
192 // adjust destination alignment
193 ((arraycopy_fn)func)(buffer, buffer2 + alignment, 0);
194 for (i = 0; i < sizeof(lbuffer); i++) {
195 assert(fbuffer[i] == v && fbuffer2[i] == v2, "shouldn't have copied anything");
196 }
197 // adjust source alignment
198 ((arraycopy_fn)func)(buffer + alignment, buffer2, 0);
199 for (i = 0; i < sizeof(lbuffer); i++) {
200 assert(fbuffer[i] == v && fbuffer2[i] == v2, "shouldn't have copied anything");
201 }
202 }
203 #endif
204
205
206 void StubRoutines::initialize2() {
207 if (_code2 == NULL) {
208 ResourceMark rm;
209 TraceTime timer("StubRoutines generation 2", TraceStartupTime);
210 _code2 = BufferBlob::create("StubRoutines (2)", code_size2);
211 if (_code2 == NULL) {
212 vm_exit_out_of_memory(code_size2, OOM_MALLOC_ERROR, "CodeCache: no room for StubRoutines (2)");
213 }
214 CodeBuffer buffer(_code2);
215 StubGenerator_generate(&buffer, true);
216 }
217
218 #ifdef ASSERT
219
220 #define TEST_ARRAYCOPY(type) \
221 test_arraycopy_func( type##_arraycopy(), sizeof(type)); \
222 test_arraycopy_func( type##_disjoint_arraycopy(), sizeof(type)); \
223 test_arraycopy_func(arrayof_##type##_arraycopy(), sizeof(HeapWord)); \
224 test_arraycopy_func(arrayof_##type##_disjoint_arraycopy(), sizeof(HeapWord))
225
226 // Make sure all the arraycopy stubs properly handle zero count
227 TEST_ARRAYCOPY(jbyte);
228 TEST_ARRAYCOPY(jshort);
229 TEST_ARRAYCOPY(jint);
230 TEST_ARRAYCOPY(jlong);
231
232 #undef TEST_ARRAYCOPY
233
234 #define TEST_FILL(type) \
235 if (_##type##_fill != NULL) { \
236 union { \
237 double d; \
238 type body[96]; \
239 } s; \
240 \
241 int v = 32; \
242 for (int offset = -2; offset <= 2; offset++) { \
243 for (int i = 0; i < 96; i++) { \
244 s.body[i] = 1; \
245 } \
246 type* start = s.body + 8 + offset; \
247 for (int aligned = 0; aligned < 2; aligned++) { \
248 if (aligned) { \
249 if (((intptr_t)start) % HeapWordSize == 0) { \
250 ((void (*)(type*, int, int))StubRoutines::_arrayof_##type##_fill)(start, v, 80); \
251 } else { \
252 continue; \
253 } \
254 } else { \
255 ((void (*)(type*, int, int))StubRoutines::_##type##_fill)(start, v, 80); \
256 } \
257 for (int i = 0; i < 96; i++) { \
258 if (i < (8 + offset) || i >= (88 + offset)) { \
259 assert(s.body[i] == 1, "what?"); \
260 } else { \
261 assert(s.body[i] == 32, "what?"); \
262 } \
263 } \
264 } \
265 } \
266 } \
267
268 TEST_FILL(jbyte);
269 TEST_FILL(jshort);
270 TEST_FILL(jint);
271
272 #undef TEST_FILL
273
274 #define TEST_COPYRTN(type) \
275 test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::conjoint_##type##s_atomic), sizeof(type)); \
276 test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::arrayof_conjoint_##type##s), (int)MAX2(sizeof(HeapWord), sizeof(type)))
277
278 // Make sure all the copy runtime routines properly handle zero count
279 TEST_COPYRTN(jbyte);
280 TEST_COPYRTN(jshort);
281 TEST_COPYRTN(jint);
282 TEST_COPYRTN(jlong);
283
284 #undef TEST_COPYRTN
285
286 test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::conjoint_words), sizeof(HeapWord));
287 test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::disjoint_words), sizeof(HeapWord));
288 test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::disjoint_words_atomic), sizeof(HeapWord));
289 // Aligned to BytesPerLong
290 test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::aligned_conjoint_words), sizeof(jlong));
291 test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::aligned_disjoint_words), sizeof(jlong));
292
293 #endif
294 }
295
296
297 void stubRoutines_init1() { StubRoutines::initialize1(); }
298 void stubRoutines_init2() { StubRoutines::initialize2(); }
299
300 //
301 // Default versions of arraycopy functions
302 //
303
304 static void gen_arraycopy_barrier_pre(oop* dest, size_t count, bool dest_uninitialized) {
305 assert(count != 0, "count should be non-zero");
306 assert(count <= (size_t)max_intx, "count too large");
307 BarrierSet* bs = Universe::heap()->barrier_set();
308 assert(bs->has_write_ref_array_pre_opt(), "Must have pre-barrier opt");
309 bs->write_ref_array_pre(dest, (int)count, dest_uninitialized);
310 }
311
312 static void gen_arraycopy_barrier(oop* dest, size_t count) {
313 assert(count != 0, "count should be non-zero");
314 BarrierSet* bs = Universe::heap()->barrier_set();
315 assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt");
316 bs->write_ref_array((HeapWord*)dest, count);
317 }
318
319 JRT_LEAF(void, StubRoutines::jbyte_copy(jbyte* src, jbyte* dest, size_t count))
320 #ifndef PRODUCT
321 SharedRuntime::_jbyte_array_copy_ctr++; // Slow-path byte array copy
322 #endif // !PRODUCT
323 Copy::conjoint_jbytes_atomic(src, dest, count);
324 JRT_END
325
326 JRT_LEAF(void, StubRoutines::jshort_copy(jshort* src, jshort* dest, size_t count))
327 #ifndef PRODUCT
328 SharedRuntime::_jshort_array_copy_ctr++; // Slow-path short/char array copy
329 #endif // !PRODUCT
330 Copy::conjoint_jshorts_atomic(src, dest, count);
331 JRT_END
332
333 JRT_LEAF(void, StubRoutines::jint_copy(jint* src, jint* dest, size_t count))
334 #ifndef PRODUCT
335 SharedRuntime::_jint_array_copy_ctr++; // Slow-path int/float array copy
336 #endif // !PRODUCT
337 Copy::conjoint_jints_atomic(src, dest, count);
338 JRT_END
339
340 JRT_LEAF(void, StubRoutines::jlong_copy(jlong* src, jlong* dest, size_t count))
341 #ifndef PRODUCT
342 SharedRuntime::_jlong_array_copy_ctr++; // Slow-path long/double array copy
343 #endif // !PRODUCT
344 Copy::conjoint_jlongs_atomic(src, dest, count);
345 JRT_END
346
347 JRT_LEAF(void, StubRoutines::oop_copy(oop* src, oop* dest, size_t count))
348 #ifndef PRODUCT
349 SharedRuntime::_oop_array_copy_ctr++; // Slow-path oop array copy
350 #endif // !PRODUCT
351 assert(count != 0, "count should be non-zero");
352 gen_arraycopy_barrier_pre(dest, count, /*dest_uninitialized*/false);
353 Copy::conjoint_oops_atomic(src, dest, count);
354 gen_arraycopy_barrier(dest, count);
355 JRT_END
356
357 JRT_LEAF(void, StubRoutines::oop_copy_uninit(oop* src, oop* dest, size_t count))
358 #ifndef PRODUCT
359 SharedRuntime::_oop_array_copy_ctr++; // Slow-path oop array copy
360 #endif // !PRODUCT
361 assert(count != 0, "count should be non-zero");
362 gen_arraycopy_barrier_pre(dest, count, /*dest_uninitialized*/true);
363 Copy::conjoint_oops_atomic(src, dest, count);
364 gen_arraycopy_barrier(dest, count);
365 JRT_END
366
367 JRT_LEAF(void, StubRoutines::arrayof_jbyte_copy(HeapWord* src, HeapWord* dest, size_t count))
368 #ifndef PRODUCT
369 SharedRuntime::_jbyte_array_copy_ctr++; // Slow-path byte array copy
370 #endif // !PRODUCT
371 Copy::arrayof_conjoint_jbytes(src, dest, count);
372 JRT_END
373
374 JRT_LEAF(void, StubRoutines::arrayof_jshort_copy(HeapWord* src, HeapWord* dest, size_t count))
375 #ifndef PRODUCT
376 SharedRuntime::_jshort_array_copy_ctr++; // Slow-path short/char array copy
377 #endif // !PRODUCT
378 Copy::arrayof_conjoint_jshorts(src, dest, count);
379 JRT_END
380
381 JRT_LEAF(void, StubRoutines::arrayof_jint_copy(HeapWord* src, HeapWord* dest, size_t count))
382 #ifndef PRODUCT
383 SharedRuntime::_jint_array_copy_ctr++; // Slow-path int/float array copy
384 #endif // !PRODUCT
385 Copy::arrayof_conjoint_jints(src, dest, count);
386 JRT_END
387
388 JRT_LEAF(void, StubRoutines::arrayof_jlong_copy(HeapWord* src, HeapWord* dest, size_t count))
389 #ifndef PRODUCT
390 SharedRuntime::_jlong_array_copy_ctr++; // Slow-path int/float array copy
391 #endif // !PRODUCT
392 Copy::arrayof_conjoint_jlongs(src, dest, count);
393 JRT_END
394
395 JRT_LEAF(void, StubRoutines::arrayof_oop_copy(HeapWord* src, HeapWord* dest, size_t count))
396 #ifndef PRODUCT
397 SharedRuntime::_oop_array_copy_ctr++; // Slow-path oop array copy
398 #endif // !PRODUCT
399 assert(count != 0, "count should be non-zero");
400 gen_arraycopy_barrier_pre((oop *) dest, count, /*dest_uninitialized*/false);
401 Copy::arrayof_conjoint_oops(src, dest, count);
402 gen_arraycopy_barrier((oop *) dest, count);
403 JRT_END
404
405 JRT_LEAF(void, StubRoutines::arrayof_oop_copy_uninit(HeapWord* src, HeapWord* dest, size_t count))
406 #ifndef PRODUCT
407 SharedRuntime::_oop_array_copy_ctr++; // Slow-path oop array copy
408 #endif // !PRODUCT
409 assert(count != 0, "count should be non-zero");
410 gen_arraycopy_barrier_pre((oop *) dest, count, /*dest_uninitialized*/true);
411 Copy::arrayof_conjoint_oops(src, dest, count);
412 gen_arraycopy_barrier((oop *) dest, count);
413 JRT_END
414
415 address StubRoutines::select_fill_function(BasicType t, bool aligned, const char* &name) {
416 #define RETURN_STUB(xxx_fill) { \
417 name = #xxx_fill; \
418 return StubRoutines::xxx_fill(); }
419
420 switch (t) {
421 case T_BYTE:
422 case T_BOOLEAN:
423 if (!aligned) RETURN_STUB(jbyte_fill);
424 RETURN_STUB(arrayof_jbyte_fill);
425 case T_CHAR:
426 case T_SHORT:
427 if (!aligned) RETURN_STUB(jshort_fill);
428 RETURN_STUB(arrayof_jshort_fill);
429 case T_INT:
430 case T_FLOAT:
431 if (!aligned) RETURN_STUB(jint_fill);
432 RETURN_STUB(arrayof_jint_fill);
433 case T_DOUBLE:
434 case T_LONG:
435 case T_ARRAY:
436 case T_OBJECT:
437 case T_NARROWOOP:
438 case T_NARROWKLASS:
439 case T_ADDRESS:
440 // Currently unsupported
441 return NULL;
442
443 default:
444 ShouldNotReachHere();
445 return NULL;
446 }
447
448 #undef RETURN_STUB
449 }
450
451 // constants for computing the copy function
452 enum {
453 COPYFUNC_UNALIGNED = 0,
454 COPYFUNC_ALIGNED = 1, // src, dest aligned to HeapWordSize
455 COPYFUNC_CONJOINT = 0,
456 COPYFUNC_DISJOINT = 2 // src != dest, or transfer can descend
457 };
458
459 // Note: The condition "disjoint" applies also for overlapping copies
460 // where an descending copy is permitted (i.e., dest_offset <= src_offset).
461 address
462 StubRoutines::select_arraycopy_function(BasicType t, bool aligned, bool disjoint, const char* &name, bool dest_uninitialized) {
463 int selector =
464 (aligned ? COPYFUNC_ALIGNED : COPYFUNC_UNALIGNED) +
465 (disjoint ? COPYFUNC_DISJOINT : COPYFUNC_CONJOINT);
466
467 #define RETURN_STUB(xxx_arraycopy) { \
468 name = #xxx_arraycopy; \
469 return StubRoutines::xxx_arraycopy(); }
470
471 #define RETURN_STUB_PARM(xxx_arraycopy, parm) { \
472 name = #xxx_arraycopy; \
473 return StubRoutines::xxx_arraycopy(parm); }
474
475 switch (t) {
476 case T_BYTE:
477 case T_BOOLEAN:
478 switch (selector) {
479 case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jbyte_arraycopy);
480 case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jbyte_arraycopy);
481 case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jbyte_disjoint_arraycopy);
482 case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jbyte_disjoint_arraycopy);
483 }
484 case T_CHAR:
485 case T_SHORT:
486 switch (selector) {
487 case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jshort_arraycopy);
488 case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jshort_arraycopy);
489 case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jshort_disjoint_arraycopy);
490 case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jshort_disjoint_arraycopy);
491 }
492 case T_INT:
493 case T_FLOAT:
494 switch (selector) {
495 case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jint_arraycopy);
496 case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jint_arraycopy);
497 case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jint_disjoint_arraycopy);
498 case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jint_disjoint_arraycopy);
499 }
500 case T_DOUBLE:
501 case T_LONG:
502 switch (selector) {
503 case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jlong_arraycopy);
504 case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jlong_arraycopy);
505 case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jlong_disjoint_arraycopy);
506 case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jlong_disjoint_arraycopy);
507 }
508 case T_ARRAY:
509 case T_OBJECT:
510 switch (selector) {
511 case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED: RETURN_STUB_PARM(oop_arraycopy, dest_uninitialized);
512 case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED: RETURN_STUB_PARM(arrayof_oop_arraycopy, dest_uninitialized);
513 case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED: RETURN_STUB_PARM(oop_disjoint_arraycopy, dest_uninitialized);
514 case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED: RETURN_STUB_PARM(arrayof_oop_disjoint_arraycopy, dest_uninitialized);
515 }
516 default:
517 ShouldNotReachHere();
518 return NULL;
519 }
520
521 #undef RETURN_STUB
522 #undef RETURN_STUB_PARM
523 }

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