Mercurial > hg > truffle
annotate src/cpu/x86/vm/stubGenerator_x86_64.cpp @ 7227:8fbb97b0016a
fixes after merge
author | Christian Haeubl <haeubl@ssw.jku.at> |
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date | Fri, 14 Dec 2012 13:10:55 +0100 |
parents | e522a00b91aa |
children | 291ffc492eb6 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2003, 2012, 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 #include "precompiled.hpp" |
26 #include "asm/assembler.hpp" | |
27 #include "assembler_x86.inline.hpp" | |
28 #include "interpreter/interpreter.hpp" | |
29 #include "nativeInst_x86.hpp" | |
30 #include "oops/instanceOop.hpp" | |
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31 #include "oops/method.hpp" |
1972 | 32 #include "oops/objArrayKlass.hpp" |
33 #include "oops/oop.inline.hpp" | |
34 #include "prims/methodHandles.hpp" | |
35 #include "runtime/frame.inline.hpp" | |
36 #include "runtime/handles.inline.hpp" | |
37 #include "runtime/sharedRuntime.hpp" | |
38 #include "runtime/stubCodeGenerator.hpp" | |
39 #include "runtime/stubRoutines.hpp" | |
40 #include "utilities/top.hpp" | |
41 #ifdef TARGET_OS_FAMILY_linux | |
42 # include "thread_linux.inline.hpp" | |
43 #endif | |
44 #ifdef TARGET_OS_FAMILY_solaris | |
45 # include "thread_solaris.inline.hpp" | |
46 #endif | |
47 #ifdef TARGET_OS_FAMILY_windows | |
48 # include "thread_windows.inline.hpp" | |
49 #endif | |
3960 | 50 #ifdef TARGET_OS_FAMILY_bsd |
51 # include "thread_bsd.inline.hpp" | |
52 #endif | |
1972 | 53 #ifdef COMPILER2 |
54 #include "opto/runtime.hpp" | |
55 #endif | |
0 | 56 |
57 // Declaration and definition of StubGenerator (no .hpp file). | |
58 // For a more detailed description of the stub routine structure | |
59 // see the comment in stubRoutines.hpp | |
60 | |
61 #define __ _masm-> | |
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62 #define TIMES_OOP (UseCompressedOops ? Address::times_4 : Address::times_8) |
304 | 63 #define a__ ((Assembler*)_masm)-> |
0 | 64 |
65 #ifdef PRODUCT | |
66 #define BLOCK_COMMENT(str) /* nothing */ | |
67 #else | |
68 #define BLOCK_COMMENT(str) __ block_comment(str) | |
69 #endif | |
70 | |
71 #define BIND(label) bind(label); BLOCK_COMMENT(#label ":") | |
72 const int MXCSR_MASK = 0xFFC0; // Mask out any pending exceptions | |
73 | |
74 // Stub Code definitions | |
75 | |
76 static address handle_unsafe_access() { | |
77 JavaThread* thread = JavaThread::current(); | |
78 address pc = thread->saved_exception_pc(); | |
79 // pc is the instruction which we must emulate | |
80 // doing a no-op is fine: return garbage from the load | |
81 // therefore, compute npc | |
82 address npc = Assembler::locate_next_instruction(pc); | |
83 | |
84 // request an async exception | |
85 thread->set_pending_unsafe_access_error(); | |
86 | |
87 // return address of next instruction to execute | |
88 return npc; | |
89 } | |
90 | |
91 class StubGenerator: public StubCodeGenerator { | |
92 private: | |
93 | |
94 #ifdef PRODUCT | |
95 #define inc_counter_np(counter) (0) | |
96 #else | |
97 void inc_counter_np_(int& counter) { | |
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98 // This can destroy rscratch1 if counter is far from the code cache |
0 | 99 __ incrementl(ExternalAddress((address)&counter)); |
100 } | |
101 #define inc_counter_np(counter) \ | |
102 BLOCK_COMMENT("inc_counter " #counter); \ | |
103 inc_counter_np_(counter); | |
104 #endif | |
105 | |
106 // Call stubs are used to call Java from C | |
107 // | |
108 // Linux Arguments: | |
109 // c_rarg0: call wrapper address address | |
110 // c_rarg1: result address | |
111 // c_rarg2: result type BasicType | |
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112 // c_rarg3: method Method* |
0 | 113 // c_rarg4: (interpreter) entry point address |
114 // c_rarg5: parameters intptr_t* | |
115 // 16(rbp): parameter size (in words) int | |
116 // 24(rbp): thread Thread* | |
117 // | |
118 // [ return_from_Java ] <--- rsp | |
119 // [ argument word n ] | |
120 // ... | |
121 // -12 [ argument word 1 ] | |
122 // -11 [ saved r15 ] <--- rsp_after_call | |
123 // -10 [ saved r14 ] | |
124 // -9 [ saved r13 ] | |
125 // -8 [ saved r12 ] | |
126 // -7 [ saved rbx ] | |
127 // -6 [ call wrapper ] | |
128 // -5 [ result ] | |
129 // -4 [ result type ] | |
130 // -3 [ method ] | |
131 // -2 [ entry point ] | |
132 // -1 [ parameters ] | |
133 // 0 [ saved rbp ] <--- rbp | |
134 // 1 [ return address ] | |
135 // 2 [ parameter size ] | |
136 // 3 [ thread ] | |
137 // | |
138 // Windows Arguments: | |
139 // c_rarg0: call wrapper address address | |
140 // c_rarg1: result address | |
141 // c_rarg2: result type BasicType | |
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142 // c_rarg3: method Method* |
0 | 143 // 48(rbp): (interpreter) entry point address |
144 // 56(rbp): parameters intptr_t* | |
145 // 64(rbp): parameter size (in words) int | |
146 // 72(rbp): thread Thread* | |
147 // | |
148 // [ return_from_Java ] <--- rsp | |
149 // [ argument word n ] | |
150 // ... | |
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151 // -28 [ argument word 1 ] |
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152 // -27 [ saved xmm15 ] <--- rsp_after_call |
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153 // [ saved xmm7-xmm14 ] |
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154 // -9 [ saved xmm6 ] (each xmm register takes 2 slots) |
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155 // -7 [ saved r15 ] |
0 | 156 // -6 [ saved r14 ] |
157 // -5 [ saved r13 ] | |
158 // -4 [ saved r12 ] | |
159 // -3 [ saved rdi ] | |
160 // -2 [ saved rsi ] | |
161 // -1 [ saved rbx ] | |
162 // 0 [ saved rbp ] <--- rbp | |
163 // 1 [ return address ] | |
164 // 2 [ call wrapper ] | |
165 // 3 [ result ] | |
166 // 4 [ result type ] | |
167 // 5 [ method ] | |
168 // 6 [ entry point ] | |
169 // 7 [ parameters ] | |
170 // 8 [ parameter size ] | |
171 // 9 [ thread ] | |
172 // | |
173 // Windows reserves the callers stack space for arguments 1-4. | |
174 // We spill c_rarg0-c_rarg3 to this space. | |
175 | |
176 // Call stub stack layout word offsets from rbp | |
177 enum call_stub_layout { | |
178 #ifdef _WIN64 | |
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179 xmm_save_first = 6, // save from xmm6 |
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180 xmm_save_last = 15, // to xmm15 |
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181 xmm_save_base = -9, |
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182 rsp_after_call_off = xmm_save_base - 2 * (xmm_save_last - xmm_save_first), // -27 |
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183 r15_off = -7, |
0 | 184 r14_off = -6, |
185 r13_off = -5, | |
186 r12_off = -4, | |
187 rdi_off = -3, | |
188 rsi_off = -2, | |
189 rbx_off = -1, | |
190 rbp_off = 0, | |
191 retaddr_off = 1, | |
192 call_wrapper_off = 2, | |
193 result_off = 3, | |
194 result_type_off = 4, | |
195 method_off = 5, | |
196 entry_point_off = 6, | |
197 parameters_off = 7, | |
198 parameter_size_off = 8, | |
199 thread_off = 9 | |
200 #else | |
201 rsp_after_call_off = -12, | |
202 mxcsr_off = rsp_after_call_off, | |
203 r15_off = -11, | |
204 r14_off = -10, | |
205 r13_off = -9, | |
206 r12_off = -8, | |
207 rbx_off = -7, | |
208 call_wrapper_off = -6, | |
209 result_off = -5, | |
210 result_type_off = -4, | |
211 method_off = -3, | |
212 entry_point_off = -2, | |
213 parameters_off = -1, | |
214 rbp_off = 0, | |
215 retaddr_off = 1, | |
216 parameter_size_off = 2, | |
217 thread_off = 3 | |
218 #endif | |
219 }; | |
220 | |
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221 #ifdef _WIN64 |
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222 Address xmm_save(int reg) { |
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223 assert(reg >= xmm_save_first && reg <= xmm_save_last, "XMM register number out of range"); |
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224 return Address(rbp, (xmm_save_base - (reg - xmm_save_first) * 2) * wordSize); |
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225 } |
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226 #endif |
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227 |
0 | 228 address generate_call_stub(address& return_address) { |
229 assert((int)frame::entry_frame_after_call_words == -(int)rsp_after_call_off + 1 && | |
230 (int)frame::entry_frame_call_wrapper_offset == (int)call_wrapper_off, | |
231 "adjust this code"); | |
232 StubCodeMark mark(this, "StubRoutines", "call_stub"); | |
233 address start = __ pc(); | |
234 | |
235 // same as in generate_catch_exception()! | |
236 const Address rsp_after_call(rbp, rsp_after_call_off * wordSize); | |
237 | |
238 const Address call_wrapper (rbp, call_wrapper_off * wordSize); | |
239 const Address result (rbp, result_off * wordSize); | |
240 const Address result_type (rbp, result_type_off * wordSize); | |
241 const Address method (rbp, method_off * wordSize); | |
242 const Address entry_point (rbp, entry_point_off * wordSize); | |
243 const Address parameters (rbp, parameters_off * wordSize); | |
244 const Address parameter_size(rbp, parameter_size_off * wordSize); | |
245 | |
246 // same as in generate_catch_exception()! | |
247 const Address thread (rbp, thread_off * wordSize); | |
248 | |
249 const Address r15_save(rbp, r15_off * wordSize); | |
250 const Address r14_save(rbp, r14_off * wordSize); | |
251 const Address r13_save(rbp, r13_off * wordSize); | |
252 const Address r12_save(rbp, r12_off * wordSize); | |
253 const Address rbx_save(rbp, rbx_off * wordSize); | |
254 | |
255 // stub code | |
256 __ enter(); | |
304 | 257 __ subptr(rsp, -rsp_after_call_off * wordSize); |
0 | 258 |
259 // save register parameters | |
260 #ifndef _WIN64 | |
304 | 261 __ movptr(parameters, c_rarg5); // parameters |
262 __ movptr(entry_point, c_rarg4); // entry_point | |
0 | 263 #endif |
264 | |
304 | 265 __ movptr(method, c_rarg3); // method |
266 __ movl(result_type, c_rarg2); // result type | |
267 __ movptr(result, c_rarg1); // result | |
268 __ movptr(call_wrapper, c_rarg0); // call wrapper | |
0 | 269 |
270 // save regs belonging to calling function | |
304 | 271 __ movptr(rbx_save, rbx); |
272 __ movptr(r12_save, r12); | |
273 __ movptr(r13_save, r13); | |
274 __ movptr(r14_save, r14); | |
275 __ movptr(r15_save, r15); | |
0 | 276 #ifdef _WIN64 |
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277 for (int i = 6; i <= 15; i++) { |
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278 __ movdqu(xmm_save(i), as_XMMRegister(i)); |
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279 } |
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280 |
0 | 281 const Address rdi_save(rbp, rdi_off * wordSize); |
282 const Address rsi_save(rbp, rsi_off * wordSize); | |
283 | |
304 | 284 __ movptr(rsi_save, rsi); |
285 __ movptr(rdi_save, rdi); | |
0 | 286 #else |
287 const Address mxcsr_save(rbp, mxcsr_off * wordSize); | |
288 { | |
289 Label skip_ldmx; | |
290 __ stmxcsr(mxcsr_save); | |
291 __ movl(rax, mxcsr_save); | |
292 __ andl(rax, MXCSR_MASK); // Only check control and mask bits | |
304 | 293 ExternalAddress mxcsr_std(StubRoutines::x86::mxcsr_std()); |
0 | 294 __ cmp32(rax, mxcsr_std); |
295 __ jcc(Assembler::equal, skip_ldmx); | |
296 __ ldmxcsr(mxcsr_std); | |
297 __ bind(skip_ldmx); | |
298 } | |
299 #endif | |
300 | |
301 // Load up thread register | |
304 | 302 __ movptr(r15_thread, thread); |
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303 __ reinit_heapbase(); |
0 | 304 |
305 #ifdef ASSERT | |
306 // make sure we have no pending exceptions | |
307 { | |
308 Label L; | |
304 | 309 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
0 | 310 __ jcc(Assembler::equal, L); |
311 __ stop("StubRoutines::call_stub: entered with pending exception"); | |
312 __ bind(L); | |
313 } | |
314 #endif | |
315 | |
316 // pass parameters if any | |
317 BLOCK_COMMENT("pass parameters if any"); | |
318 Label parameters_done; | |
319 __ movl(c_rarg3, parameter_size); | |
320 __ testl(c_rarg3, c_rarg3); | |
321 __ jcc(Assembler::zero, parameters_done); | |
322 | |
323 Label loop; | |
304 | 324 __ movptr(c_rarg2, parameters); // parameter pointer |
325 __ movl(c_rarg1, c_rarg3); // parameter counter is in c_rarg1 | |
0 | 326 __ BIND(loop); |
304 | 327 __ movptr(rax, Address(c_rarg2, 0));// get parameter |
328 __ addptr(c_rarg2, wordSize); // advance to next parameter | |
329 __ decrementl(c_rarg1); // decrement counter | |
330 __ push(rax); // pass parameter | |
0 | 331 __ jcc(Assembler::notZero, loop); |
332 | |
333 // call Java function | |
334 __ BIND(parameters_done); | |
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335 __ movptr(rbx, method); // get Method* |
304 | 336 __ movptr(c_rarg1, entry_point); // get entry_point |
337 __ mov(r13, rsp); // set sender sp | |
0 | 338 BLOCK_COMMENT("call Java function"); |
339 __ call(c_rarg1); | |
340 | |
341 BLOCK_COMMENT("call_stub_return_address:"); | |
342 return_address = __ pc(); | |
343 | |
344 // store result depending on type (everything that is not | |
345 // T_OBJECT, T_LONG, T_FLOAT or T_DOUBLE is treated as T_INT) | |
304 | 346 __ movptr(c_rarg0, result); |
0 | 347 Label is_long, is_float, is_double, exit; |
348 __ movl(c_rarg1, result_type); | |
349 __ cmpl(c_rarg1, T_OBJECT); | |
350 __ jcc(Assembler::equal, is_long); | |
351 __ cmpl(c_rarg1, T_LONG); | |
352 __ jcc(Assembler::equal, is_long); | |
353 __ cmpl(c_rarg1, T_FLOAT); | |
354 __ jcc(Assembler::equal, is_float); | |
355 __ cmpl(c_rarg1, T_DOUBLE); | |
356 __ jcc(Assembler::equal, is_double); | |
357 | |
358 // handle T_INT case | |
359 __ movl(Address(c_rarg0, 0), rax); | |
360 | |
361 __ BIND(exit); | |
362 | |
363 // pop parameters | |
304 | 364 __ lea(rsp, rsp_after_call); |
0 | 365 |
366 #ifdef ASSERT | |
367 // verify that threads correspond | |
368 { | |
369 Label L, S; | |
304 | 370 __ cmpptr(r15_thread, thread); |
0 | 371 __ jcc(Assembler::notEqual, S); |
372 __ get_thread(rbx); | |
304 | 373 __ cmpptr(r15_thread, rbx); |
0 | 374 __ jcc(Assembler::equal, L); |
375 __ bind(S); | |
376 __ jcc(Assembler::equal, L); | |
377 __ stop("StubRoutines::call_stub: threads must correspond"); | |
378 __ bind(L); | |
379 } | |
380 #endif | |
381 | |
382 // restore regs belonging to calling function | |
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383 #ifdef _WIN64 |
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384 for (int i = 15; i >= 6; i--) { |
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385 __ movdqu(as_XMMRegister(i), xmm_save(i)); |
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386 } |
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387 #endif |
304 | 388 __ movptr(r15, r15_save); |
389 __ movptr(r14, r14_save); | |
390 __ movptr(r13, r13_save); | |
391 __ movptr(r12, r12_save); | |
392 __ movptr(rbx, rbx_save); | |
0 | 393 |
394 #ifdef _WIN64 | |
304 | 395 __ movptr(rdi, rdi_save); |
396 __ movptr(rsi, rsi_save); | |
0 | 397 #else |
398 __ ldmxcsr(mxcsr_save); | |
399 #endif | |
400 | |
401 // restore rsp | |
304 | 402 __ addptr(rsp, -rsp_after_call_off * wordSize); |
0 | 403 |
404 // return | |
304 | 405 __ pop(rbp); |
0 | 406 __ ret(0); |
407 | |
408 // handle return types different from T_INT | |
409 __ BIND(is_long); | |
410 __ movq(Address(c_rarg0, 0), rax); | |
411 __ jmp(exit); | |
412 | |
413 __ BIND(is_float); | |
414 __ movflt(Address(c_rarg0, 0), xmm0); | |
415 __ jmp(exit); | |
416 | |
417 __ BIND(is_double); | |
418 __ movdbl(Address(c_rarg0, 0), xmm0); | |
419 __ jmp(exit); | |
420 | |
421 return start; | |
422 } | |
423 | |
424 // Return point for a Java call if there's an exception thrown in | |
425 // Java code. The exception is caught and transformed into a | |
426 // pending exception stored in JavaThread that can be tested from | |
427 // within the VM. | |
428 // | |
429 // Note: Usually the parameters are removed by the callee. In case | |
430 // of an exception crossing an activation frame boundary, that is | |
431 // not the case if the callee is compiled code => need to setup the | |
432 // rsp. | |
433 // | |
434 // rax: exception oop | |
435 | |
436 address generate_catch_exception() { | |
437 StubCodeMark mark(this, "StubRoutines", "catch_exception"); | |
438 address start = __ pc(); | |
439 | |
440 // same as in generate_call_stub(): | |
441 const Address rsp_after_call(rbp, rsp_after_call_off * wordSize); | |
442 const Address thread (rbp, thread_off * wordSize); | |
443 | |
444 #ifdef ASSERT | |
445 // verify that threads correspond | |
446 { | |
447 Label L, S; | |
304 | 448 __ cmpptr(r15_thread, thread); |
0 | 449 __ jcc(Assembler::notEqual, S); |
450 __ get_thread(rbx); | |
304 | 451 __ cmpptr(r15_thread, rbx); |
0 | 452 __ jcc(Assembler::equal, L); |
453 __ bind(S); | |
454 __ stop("StubRoutines::catch_exception: threads must correspond"); | |
455 __ bind(L); | |
456 } | |
457 #endif | |
458 | |
459 // set pending exception | |
460 __ verify_oop(rax); | |
461 | |
304 | 462 __ movptr(Address(r15_thread, Thread::pending_exception_offset()), rax); |
0 | 463 __ lea(rscratch1, ExternalAddress((address)__FILE__)); |
304 | 464 __ movptr(Address(r15_thread, Thread::exception_file_offset()), rscratch1); |
0 | 465 __ movl(Address(r15_thread, Thread::exception_line_offset()), (int) __LINE__); |
466 | |
467 // complete return to VM | |
468 assert(StubRoutines::_call_stub_return_address != NULL, | |
469 "_call_stub_return_address must have been generated before"); | |
470 __ jump(RuntimeAddress(StubRoutines::_call_stub_return_address)); | |
471 | |
472 return start; | |
473 } | |
474 | |
475 // Continuation point for runtime calls returning with a pending | |
476 // exception. The pending exception check happened in the runtime | |
477 // or native call stub. The pending exception in Thread is | |
478 // converted into a Java-level exception. | |
479 // | |
480 // Contract with Java-level exception handlers: | |
481 // rax: exception | |
482 // rdx: throwing pc | |
483 // | |
484 // NOTE: At entry of this stub, exception-pc must be on stack !! | |
485 | |
486 address generate_forward_exception() { | |
487 StubCodeMark mark(this, "StubRoutines", "forward exception"); | |
488 address start = __ pc(); | |
489 | |
490 // Upon entry, the sp points to the return address returning into | |
491 // Java (interpreted or compiled) code; i.e., the return address | |
492 // becomes the throwing pc. | |
493 // | |
494 // Arguments pushed before the runtime call are still on the stack | |
495 // but the exception handler will reset the stack pointer -> | |
496 // ignore them. A potential result in registers can be ignored as | |
497 // well. | |
498 | |
499 #ifdef ASSERT | |
500 // make sure this code is only executed if there is a pending exception | |
501 { | |
502 Label L; | |
304 | 503 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL); |
0 | 504 __ jcc(Assembler::notEqual, L); |
505 __ stop("StubRoutines::forward exception: no pending exception (1)"); | |
506 __ bind(L); | |
507 } | |
508 #endif | |
509 | |
510 // compute exception handler into rbx | |
304 | 511 __ movptr(c_rarg0, Address(rsp, 0)); |
0 | 512 BLOCK_COMMENT("call exception_handler_for_return_address"); |
513 __ call_VM_leaf(CAST_FROM_FN_PTR(address, | |
514 SharedRuntime::exception_handler_for_return_address), | |
1295 | 515 r15_thread, c_rarg0); |
304 | 516 __ mov(rbx, rax); |
0 | 517 |
518 // setup rax & rdx, remove return address & clear pending exception | |
304 | 519 __ pop(rdx); |
520 __ movptr(rax, Address(r15_thread, Thread::pending_exception_offset())); | |
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521 __ movptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
0 | 522 |
523 #ifdef ASSERT | |
524 // make sure exception is set | |
525 { | |
526 Label L; | |
304 | 527 __ testptr(rax, rax); |
0 | 528 __ jcc(Assembler::notEqual, L); |
529 __ stop("StubRoutines::forward exception: no pending exception (2)"); | |
530 __ bind(L); | |
531 } | |
532 #endif | |
533 | |
534 // continue at exception handler (return address removed) | |
535 // rax: exception | |
536 // rbx: exception handler | |
537 // rdx: throwing pc | |
538 __ verify_oop(rax); | |
539 __ jmp(rbx); | |
540 | |
541 return start; | |
542 } | |
543 | |
544 // Support for jint atomic::xchg(jint exchange_value, volatile jint* dest) | |
545 // | |
546 // Arguments : | |
547 // c_rarg0: exchange_value | |
548 // c_rarg0: dest | |
549 // | |
550 // Result: | |
551 // *dest <- ex, return (orig *dest) | |
552 address generate_atomic_xchg() { | |
553 StubCodeMark mark(this, "StubRoutines", "atomic_xchg"); | |
554 address start = __ pc(); | |
555 | |
556 __ movl(rax, c_rarg0); // Copy to eax we need a return value anyhow | |
557 __ xchgl(rax, Address(c_rarg1, 0)); // automatic LOCK | |
558 __ ret(0); | |
559 | |
560 return start; | |
561 } | |
562 | |
563 // Support for intptr_t atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) | |
564 // | |
565 // Arguments : | |
566 // c_rarg0: exchange_value | |
567 // c_rarg1: dest | |
568 // | |
569 // Result: | |
570 // *dest <- ex, return (orig *dest) | |
571 address generate_atomic_xchg_ptr() { | |
572 StubCodeMark mark(this, "StubRoutines", "atomic_xchg_ptr"); | |
573 address start = __ pc(); | |
574 | |
304 | 575 __ movptr(rax, c_rarg0); // Copy to eax we need a return value anyhow |
576 __ xchgptr(rax, Address(c_rarg1, 0)); // automatic LOCK | |
0 | 577 __ ret(0); |
578 | |
579 return start; | |
580 } | |
581 | |
582 // Support for jint atomic::atomic_cmpxchg(jint exchange_value, volatile jint* dest, | |
583 // jint compare_value) | |
584 // | |
585 // Arguments : | |
586 // c_rarg0: exchange_value | |
587 // c_rarg1: dest | |
588 // c_rarg2: compare_value | |
589 // | |
590 // Result: | |
591 // if ( compare_value == *dest ) { | |
592 // *dest = exchange_value | |
593 // return compare_value; | |
594 // else | |
595 // return *dest; | |
596 address generate_atomic_cmpxchg() { | |
597 StubCodeMark mark(this, "StubRoutines", "atomic_cmpxchg"); | |
598 address start = __ pc(); | |
599 | |
600 __ movl(rax, c_rarg2); | |
601 if ( os::is_MP() ) __ lock(); | |
602 __ cmpxchgl(c_rarg0, Address(c_rarg1, 0)); | |
603 __ ret(0); | |
604 | |
605 return start; | |
606 } | |
607 | |
608 // Support for jint atomic::atomic_cmpxchg_long(jlong exchange_value, | |
609 // volatile jlong* dest, | |
610 // jlong compare_value) | |
611 // Arguments : | |
612 // c_rarg0: exchange_value | |
613 // c_rarg1: dest | |
614 // c_rarg2: compare_value | |
615 // | |
616 // Result: | |
617 // if ( compare_value == *dest ) { | |
618 // *dest = exchange_value | |
619 // return compare_value; | |
620 // else | |
621 // return *dest; | |
622 address generate_atomic_cmpxchg_long() { | |
623 StubCodeMark mark(this, "StubRoutines", "atomic_cmpxchg_long"); | |
624 address start = __ pc(); | |
625 | |
626 __ movq(rax, c_rarg2); | |
627 if ( os::is_MP() ) __ lock(); | |
628 __ cmpxchgq(c_rarg0, Address(c_rarg1, 0)); | |
629 __ ret(0); | |
630 | |
631 return start; | |
632 } | |
633 | |
634 // Support for jint atomic::add(jint add_value, volatile jint* dest) | |
635 // | |
636 // Arguments : | |
637 // c_rarg0: add_value | |
638 // c_rarg1: dest | |
639 // | |
640 // Result: | |
641 // *dest += add_value | |
642 // return *dest; | |
643 address generate_atomic_add() { | |
644 StubCodeMark mark(this, "StubRoutines", "atomic_add"); | |
645 address start = __ pc(); | |
646 | |
647 __ movl(rax, c_rarg0); | |
648 if ( os::is_MP() ) __ lock(); | |
649 __ xaddl(Address(c_rarg1, 0), c_rarg0); | |
650 __ addl(rax, c_rarg0); | |
651 __ ret(0); | |
652 | |
653 return start; | |
654 } | |
655 | |
656 // Support for intptr_t atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) | |
657 // | |
658 // Arguments : | |
659 // c_rarg0: add_value | |
660 // c_rarg1: dest | |
661 // | |
662 // Result: | |
663 // *dest += add_value | |
664 // return *dest; | |
665 address generate_atomic_add_ptr() { | |
666 StubCodeMark mark(this, "StubRoutines", "atomic_add_ptr"); | |
667 address start = __ pc(); | |
668 | |
304 | 669 __ movptr(rax, c_rarg0); // Copy to eax we need a return value anyhow |
0 | 670 if ( os::is_MP() ) __ lock(); |
304 | 671 __ xaddptr(Address(c_rarg1, 0), c_rarg0); |
672 __ addptr(rax, c_rarg0); | |
0 | 673 __ ret(0); |
674 | |
675 return start; | |
676 } | |
677 | |
678 // Support for intptr_t OrderAccess::fence() | |
679 // | |
680 // Arguments : | |
681 // | |
682 // Result: | |
683 address generate_orderaccess_fence() { | |
684 StubCodeMark mark(this, "StubRoutines", "orderaccess_fence"); | |
685 address start = __ pc(); | |
671
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686 __ membar(Assembler::StoreLoad); |
0 | 687 __ ret(0); |
688 | |
689 return start; | |
690 } | |
691 | |
692 // Support for intptr_t get_previous_fp() | |
693 // | |
694 // This routine is used to find the previous frame pointer for the | |
695 // caller (current_frame_guess). This is used as part of debugging | |
696 // ps() is seemingly lost trying to find frames. | |
697 // This code assumes that caller current_frame_guess) has a frame. | |
698 address generate_get_previous_fp() { | |
699 StubCodeMark mark(this, "StubRoutines", "get_previous_fp"); | |
700 const Address old_fp(rbp, 0); | |
701 const Address older_fp(rax, 0); | |
702 address start = __ pc(); | |
703 | |
704 __ enter(); | |
304 | 705 __ movptr(rax, old_fp); // callers fp |
706 __ movptr(rax, older_fp); // the frame for ps() | |
707 __ pop(rbp); | |
0 | 708 __ ret(0); |
709 | |
710 return start; | |
711 } | |
712 | |
5903
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713 // Support for intptr_t get_previous_sp() |
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714 // |
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715 // This routine is used to find the previous stack pointer for the |
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716 // caller. |
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717 address generate_get_previous_sp() { |
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718 StubCodeMark mark(this, "StubRoutines", "get_previous_sp"); |
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719 address start = __ pc(); |
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720 |
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721 __ movptr(rax, rsp); |
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722 __ addptr(rax, 8); // return address is at the top of the stack. |
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723 __ ret(0); |
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724 |
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725 return start; |
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726 } |
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727 |
0 | 728 //---------------------------------------------------------------------------------------------------- |
729 // Support for void verify_mxcsr() | |
730 // | |
731 // This routine is used with -Xcheck:jni to verify that native | |
732 // JNI code does not return to Java code without restoring the | |
733 // MXCSR register to our expected state. | |
734 | |
735 address generate_verify_mxcsr() { | |
736 StubCodeMark mark(this, "StubRoutines", "verify_mxcsr"); | |
737 address start = __ pc(); | |
738 | |
739 const Address mxcsr_save(rsp, 0); | |
740 | |
741 if (CheckJNICalls) { | |
742 Label ok_ret; | |
304 | 743 __ push(rax); |
744 __ subptr(rsp, wordSize); // allocate a temp location | |
0 | 745 __ stmxcsr(mxcsr_save); |
746 __ movl(rax, mxcsr_save); | |
747 __ andl(rax, MXCSR_MASK); // Only check control and mask bits | |
304 | 748 __ cmpl(rax, *(int *)(StubRoutines::x86::mxcsr_std())); |
0 | 749 __ jcc(Assembler::equal, ok_ret); |
750 | |
751 __ warn("MXCSR changed by native JNI code, use -XX:+RestoreMXCSROnJNICall"); | |
752 | |
304 | 753 __ ldmxcsr(ExternalAddress(StubRoutines::x86::mxcsr_std())); |
0 | 754 |
755 __ bind(ok_ret); | |
304 | 756 __ addptr(rsp, wordSize); |
757 __ pop(rax); | |
0 | 758 } |
759 | |
760 __ ret(0); | |
761 | |
762 return start; | |
763 } | |
764 | |
765 address generate_f2i_fixup() { | |
766 StubCodeMark mark(this, "StubRoutines", "f2i_fixup"); | |
767 Address inout(rsp, 5 * wordSize); // return address + 4 saves | |
768 | |
769 address start = __ pc(); | |
770 | |
771 Label L; | |
772 | |
304 | 773 __ push(rax); |
774 __ push(c_rarg3); | |
775 __ push(c_rarg2); | |
776 __ push(c_rarg1); | |
0 | 777 |
778 __ movl(rax, 0x7f800000); | |
779 __ xorl(c_rarg3, c_rarg3); | |
780 __ movl(c_rarg2, inout); | |
781 __ movl(c_rarg1, c_rarg2); | |
782 __ andl(c_rarg1, 0x7fffffff); | |
783 __ cmpl(rax, c_rarg1); // NaN? -> 0 | |
784 __ jcc(Assembler::negative, L); | |
785 __ testl(c_rarg2, c_rarg2); // signed ? min_jint : max_jint | |
786 __ movl(c_rarg3, 0x80000000); | |
787 __ movl(rax, 0x7fffffff); | |
788 __ cmovl(Assembler::positive, c_rarg3, rax); | |
789 | |
790 __ bind(L); | |
304 | 791 __ movptr(inout, c_rarg3); |
792 | |
793 __ pop(c_rarg1); | |
794 __ pop(c_rarg2); | |
795 __ pop(c_rarg3); | |
796 __ pop(rax); | |
0 | 797 |
798 __ ret(0); | |
799 | |
800 return start; | |
801 } | |
802 | |
803 address generate_f2l_fixup() { | |
804 StubCodeMark mark(this, "StubRoutines", "f2l_fixup"); | |
805 Address inout(rsp, 5 * wordSize); // return address + 4 saves | |
806 address start = __ pc(); | |
807 | |
808 Label L; | |
809 | |
304 | 810 __ push(rax); |
811 __ push(c_rarg3); | |
812 __ push(c_rarg2); | |
813 __ push(c_rarg1); | |
0 | 814 |
815 __ movl(rax, 0x7f800000); | |
816 __ xorl(c_rarg3, c_rarg3); | |
817 __ movl(c_rarg2, inout); | |
818 __ movl(c_rarg1, c_rarg2); | |
819 __ andl(c_rarg1, 0x7fffffff); | |
820 __ cmpl(rax, c_rarg1); // NaN? -> 0 | |
821 __ jcc(Assembler::negative, L); | |
822 __ testl(c_rarg2, c_rarg2); // signed ? min_jlong : max_jlong | |
823 __ mov64(c_rarg3, 0x8000000000000000); | |
824 __ mov64(rax, 0x7fffffffffffffff); | |
304 | 825 __ cmov(Assembler::positive, c_rarg3, rax); |
0 | 826 |
827 __ bind(L); | |
304 | 828 __ movptr(inout, c_rarg3); |
829 | |
830 __ pop(c_rarg1); | |
831 __ pop(c_rarg2); | |
832 __ pop(c_rarg3); | |
833 __ pop(rax); | |
0 | 834 |
835 __ ret(0); | |
836 | |
837 return start; | |
838 } | |
839 | |
840 address generate_d2i_fixup() { | |
841 StubCodeMark mark(this, "StubRoutines", "d2i_fixup"); | |
842 Address inout(rsp, 6 * wordSize); // return address + 5 saves | |
843 | |
844 address start = __ pc(); | |
845 | |
846 Label L; | |
847 | |
304 | 848 __ push(rax); |
849 __ push(c_rarg3); | |
850 __ push(c_rarg2); | |
851 __ push(c_rarg1); | |
852 __ push(c_rarg0); | |
0 | 853 |
854 __ movl(rax, 0x7ff00000); | |
855 __ movq(c_rarg2, inout); | |
856 __ movl(c_rarg3, c_rarg2); | |
304 | 857 __ mov(c_rarg1, c_rarg2); |
858 __ mov(c_rarg0, c_rarg2); | |
0 | 859 __ negl(c_rarg3); |
304 | 860 __ shrptr(c_rarg1, 0x20); |
0 | 861 __ orl(c_rarg3, c_rarg2); |
862 __ andl(c_rarg1, 0x7fffffff); | |
863 __ xorl(c_rarg2, c_rarg2); | |
864 __ shrl(c_rarg3, 0x1f); | |
865 __ orl(c_rarg1, c_rarg3); | |
866 __ cmpl(rax, c_rarg1); | |
867 __ jcc(Assembler::negative, L); // NaN -> 0 | |
304 | 868 __ testptr(c_rarg0, c_rarg0); // signed ? min_jint : max_jint |
0 | 869 __ movl(c_rarg2, 0x80000000); |
870 __ movl(rax, 0x7fffffff); | |
304 | 871 __ cmov(Assembler::positive, c_rarg2, rax); |
0 | 872 |
873 __ bind(L); | |
304 | 874 __ movptr(inout, c_rarg2); |
875 | |
876 __ pop(c_rarg0); | |
877 __ pop(c_rarg1); | |
878 __ pop(c_rarg2); | |
879 __ pop(c_rarg3); | |
880 __ pop(rax); | |
0 | 881 |
882 __ ret(0); | |
883 | |
884 return start; | |
885 } | |
886 | |
887 address generate_d2l_fixup() { | |
888 StubCodeMark mark(this, "StubRoutines", "d2l_fixup"); | |
889 Address inout(rsp, 6 * wordSize); // return address + 5 saves | |
890 | |
891 address start = __ pc(); | |
892 | |
893 Label L; | |
894 | |
304 | 895 __ push(rax); |
896 __ push(c_rarg3); | |
897 __ push(c_rarg2); | |
898 __ push(c_rarg1); | |
899 __ push(c_rarg0); | |
0 | 900 |
901 __ movl(rax, 0x7ff00000); | |
902 __ movq(c_rarg2, inout); | |
903 __ movl(c_rarg3, c_rarg2); | |
304 | 904 __ mov(c_rarg1, c_rarg2); |
905 __ mov(c_rarg0, c_rarg2); | |
0 | 906 __ negl(c_rarg3); |
304 | 907 __ shrptr(c_rarg1, 0x20); |
0 | 908 __ orl(c_rarg3, c_rarg2); |
909 __ andl(c_rarg1, 0x7fffffff); | |
910 __ xorl(c_rarg2, c_rarg2); | |
911 __ shrl(c_rarg3, 0x1f); | |
912 __ orl(c_rarg1, c_rarg3); | |
913 __ cmpl(rax, c_rarg1); | |
914 __ jcc(Assembler::negative, L); // NaN -> 0 | |
915 __ testq(c_rarg0, c_rarg0); // signed ? min_jlong : max_jlong | |
916 __ mov64(c_rarg2, 0x8000000000000000); | |
917 __ mov64(rax, 0x7fffffffffffffff); | |
918 __ cmovq(Assembler::positive, c_rarg2, rax); | |
919 | |
920 __ bind(L); | |
921 __ movq(inout, c_rarg2); | |
922 | |
304 | 923 __ pop(c_rarg0); |
924 __ pop(c_rarg1); | |
925 __ pop(c_rarg2); | |
926 __ pop(c_rarg3); | |
927 __ pop(rax); | |
0 | 928 |
929 __ ret(0); | |
930 | |
931 return start; | |
932 } | |
933 | |
934 address generate_fp_mask(const char *stub_name, int64_t mask) { | |
1365 | 935 __ align(CodeEntryAlignment); |
0 | 936 StubCodeMark mark(this, "StubRoutines", stub_name); |
937 address start = __ pc(); | |
938 | |
939 __ emit_data64( mask, relocInfo::none ); | |
940 __ emit_data64( mask, relocInfo::none ); | |
941 | |
942 return start; | |
943 } | |
944 | |
945 // The following routine generates a subroutine to throw an | |
946 // asynchronous UnknownError when an unsafe access gets a fault that | |
947 // could not be reasonably prevented by the programmer. (Example: | |
948 // SIGBUS/OBJERR.) | |
949 address generate_handler_for_unsafe_access() { | |
950 StubCodeMark mark(this, "StubRoutines", "handler_for_unsafe_access"); | |
951 address start = __ pc(); | |
952 | |
304 | 953 __ push(0); // hole for return address-to-be |
954 __ pusha(); // push registers | |
0 | 955 Address next_pc(rsp, RegisterImpl::number_of_registers * BytesPerWord); |
956 | |
3937 | 957 // FIXME: this probably needs alignment logic |
958 | |
304 | 959 __ subptr(rsp, frame::arg_reg_save_area_bytes); |
0 | 960 BLOCK_COMMENT("call handle_unsafe_access"); |
961 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, handle_unsafe_access))); | |
304 | 962 __ addptr(rsp, frame::arg_reg_save_area_bytes); |
963 | |
964 __ movptr(next_pc, rax); // stuff next address | |
965 __ popa(); | |
0 | 966 __ ret(0); // jump to next address |
967 | |
968 return start; | |
969 } | |
970 | |
971 // Non-destructive plausibility checks for oops | |
972 // | |
973 // Arguments: | |
974 // all args on stack! | |
975 // | |
976 // Stack after saving c_rarg3: | |
977 // [tos + 0]: saved c_rarg3 | |
978 // [tos + 1]: saved c_rarg2 | |
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979 // [tos + 2]: saved r12 (several TemplateTable methods use it) |
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980 // [tos + 3]: saved flags |
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981 // [tos + 4]: return address |
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982 // * [tos + 5]: error message (char*) |
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983 // * [tos + 6]: object to verify (oop) |
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984 // * [tos + 7]: saved rax - saved by caller and bashed |
1583 | 985 // * [tos + 8]: saved r10 (rscratch1) - saved by caller |
0 | 986 // * = popped on exit |
987 address generate_verify_oop() { | |
988 StubCodeMark mark(this, "StubRoutines", "verify_oop"); | |
989 address start = __ pc(); | |
990 | |
991 Label exit, error; | |
992 | |
304 | 993 __ pushf(); |
0 | 994 __ incrementl(ExternalAddress((address) StubRoutines::verify_oop_count_addr())); |
995 | |
304 | 996 __ push(r12); |
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997 |
0 | 998 // save c_rarg2 and c_rarg3 |
304 | 999 __ push(c_rarg2); |
1000 __ push(c_rarg3); | |
0 | 1001 |
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1002 enum { |
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1003 // After previous pushes. |
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1004 oop_to_verify = 6 * wordSize, |
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1005 saved_rax = 7 * wordSize, |
1583 | 1006 saved_r10 = 8 * wordSize, |
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1007 |
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1008 // Before the call to MacroAssembler::debug(), see below. |
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1009 return_addr = 16 * wordSize, |
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1010 error_msg = 17 * wordSize |
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1011 }; |
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1012 |
0 | 1013 // get object |
304 | 1014 __ movptr(rax, Address(rsp, oop_to_verify)); |
0 | 1015 |
1016 // make sure object is 'reasonable' | |
304 | 1017 __ testptr(rax, rax); |
0 | 1018 __ jcc(Assembler::zero, exit); // if obj is NULL it is OK |
1019 // Check if the oop is in the right area of memory | |
304 | 1020 __ movptr(c_rarg2, rax); |
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1021 __ movptr(c_rarg3, (intptr_t) Universe::verify_oop_mask()); |
304 | 1022 __ andptr(c_rarg2, c_rarg3); |
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1023 __ movptr(c_rarg3, (intptr_t) Universe::verify_oop_bits()); |
304 | 1024 __ cmpptr(c_rarg2, c_rarg3); |
0 | 1025 __ jcc(Assembler::notZero, error); |
1026 | |
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1027 // set r12 to heapbase for load_klass() |
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1028 __ reinit_heapbase(); |
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1029 |
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1030 // make sure klass is 'reasonable', which is not zero. |
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1031 __ load_klass(rax, rax); // get klass |
304 | 1032 __ testptr(rax, rax); |
0 | 1033 __ jcc(Assembler::zero, error); // if klass is NULL it is broken |
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1034 // TODO: Future assert that klass is lower 4g memory for UseCompressedKlassPointers |
0 | 1035 |
1036 // return if everything seems ok | |
1037 __ bind(exit); | |
304 | 1038 __ movptr(rax, Address(rsp, saved_rax)); // get saved rax back |
1583 | 1039 __ movptr(rscratch1, Address(rsp, saved_r10)); // get saved r10 back |
304 | 1040 __ pop(c_rarg3); // restore c_rarg3 |
1041 __ pop(c_rarg2); // restore c_rarg2 | |
1042 __ pop(r12); // restore r12 | |
1043 __ popf(); // restore flags | |
1583 | 1044 __ ret(4 * wordSize); // pop caller saved stuff |
0 | 1045 |
1046 // handle errors | |
1047 __ bind(error); | |
304 | 1048 __ movptr(rax, Address(rsp, saved_rax)); // get saved rax back |
1583 | 1049 __ movptr(rscratch1, Address(rsp, saved_r10)); // get saved r10 back |
304 | 1050 __ pop(c_rarg3); // get saved c_rarg3 back |
1051 __ pop(c_rarg2); // get saved c_rarg2 back | |
1052 __ pop(r12); // get saved r12 back | |
1053 __ popf(); // get saved flags off stack -- | |
0 | 1054 // will be ignored |
1055 | |
304 | 1056 __ pusha(); // push registers |
0 | 1057 // (rip is already |
1058 // already pushed) | |
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1059 // debug(char* msg, int64_t pc, int64_t regs[]) |
0 | 1060 // We've popped the registers we'd saved (c_rarg3, c_rarg2 and flags), and |
1061 // pushed all the registers, so now the stack looks like: | |
1062 // [tos + 0] 16 saved registers | |
1063 // [tos + 16] return address | |
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1064 // * [tos + 17] error message (char*) |
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1065 // * [tos + 18] object to verify (oop) |
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1066 // * [tos + 19] saved rax - saved by caller and bashed |
1583 | 1067 // * [tos + 20] saved r10 (rscratch1) - saved by caller |
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1068 // * = popped on exit |
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1069 |
304 | 1070 __ movptr(c_rarg0, Address(rsp, error_msg)); // pass address of error message |
1071 __ movptr(c_rarg1, Address(rsp, return_addr)); // pass return address | |
1072 __ movq(c_rarg2, rsp); // pass address of regs on stack | |
1073 __ mov(r12, rsp); // remember rsp | |
1074 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
1075 __ andptr(rsp, -16); // align stack as required by ABI | |
0 | 1076 BLOCK_COMMENT("call MacroAssembler::debug"); |
304 | 1077 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, MacroAssembler::debug64))); |
1078 __ mov(rsp, r12); // restore rsp | |
1079 __ popa(); // pop registers (includes r12) | |
1583 | 1080 __ ret(4 * wordSize); // pop caller saved stuff |
0 | 1081 |
1082 return start; | |
1083 } | |
1084 | |
1085 // | |
1086 // Verify that a register contains clean 32-bits positive value | |
1087 // (high 32-bits are 0) so it could be used in 64-bits shifts. | |
1088 // | |
1089 // Input: | |
1090 // Rint - 32-bits value | |
1091 // Rtmp - scratch | |
1092 // | |
1093 void assert_clean_int(Register Rint, Register Rtmp) { | |
1094 #ifdef ASSERT | |
1095 Label L; | |
1096 assert_different_registers(Rtmp, Rint); | |
1097 __ movslq(Rtmp, Rint); | |
1098 __ cmpq(Rtmp, Rint); | |
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1099 __ jcc(Assembler::equal, L); |
0 | 1100 __ stop("high 32-bits of int value are not 0"); |
1101 __ bind(L); | |
1102 #endif | |
1103 } | |
1104 | |
1105 // Generate overlap test for array copy stubs | |
1106 // | |
1107 // Input: | |
1108 // c_rarg0 - from | |
1109 // c_rarg1 - to | |
1110 // c_rarg2 - element count | |
1111 // | |
1112 // Output: | |
1113 // rax - &from[element count - 1] | |
1114 // | |
1115 void array_overlap_test(address no_overlap_target, Address::ScaleFactor sf) { | |
1116 assert(no_overlap_target != NULL, "must be generated"); | |
1117 array_overlap_test(no_overlap_target, NULL, sf); | |
1118 } | |
1119 void array_overlap_test(Label& L_no_overlap, Address::ScaleFactor sf) { | |
1120 array_overlap_test(NULL, &L_no_overlap, sf); | |
1121 } | |
1122 void array_overlap_test(address no_overlap_target, Label* NOLp, Address::ScaleFactor sf) { | |
1123 const Register from = c_rarg0; | |
1124 const Register to = c_rarg1; | |
1125 const Register count = c_rarg2; | |
1126 const Register end_from = rax; | |
1127 | |
304 | 1128 __ cmpptr(to, from); |
1129 __ lea(end_from, Address(from, count, sf, 0)); | |
0 | 1130 if (NOLp == NULL) { |
1131 ExternalAddress no_overlap(no_overlap_target); | |
1132 __ jump_cc(Assembler::belowEqual, no_overlap); | |
304 | 1133 __ cmpptr(to, end_from); |
0 | 1134 __ jump_cc(Assembler::aboveEqual, no_overlap); |
1135 } else { | |
1136 __ jcc(Assembler::belowEqual, (*NOLp)); | |
304 | 1137 __ cmpptr(to, end_from); |
0 | 1138 __ jcc(Assembler::aboveEqual, (*NOLp)); |
1139 } | |
1140 } | |
1141 | |
1142 // Shuffle first three arg regs on Windows into Linux/Solaris locations. | |
1143 // | |
1144 // Outputs: | |
1145 // rdi - rcx | |
1146 // rsi - rdx | |
1147 // rdx - r8 | |
1148 // rcx - r9 | |
1149 // | |
1150 // Registers r9 and r10 are used to save rdi and rsi on Windows, which latter | |
1151 // are non-volatile. r9 and r10 should not be used by the caller. | |
1152 // | |
1153 void setup_arg_regs(int nargs = 3) { | |
1154 const Register saved_rdi = r9; | |
1155 const Register saved_rsi = r10; | |
1156 assert(nargs == 3 || nargs == 4, "else fix"); | |
1157 #ifdef _WIN64 | |
1158 assert(c_rarg0 == rcx && c_rarg1 == rdx && c_rarg2 == r8 && c_rarg3 == r9, | |
1159 "unexpected argument registers"); | |
1160 if (nargs >= 4) | |
304 | 1161 __ mov(rax, r9); // r9 is also saved_rdi |
1162 __ movptr(saved_rdi, rdi); | |
1163 __ movptr(saved_rsi, rsi); | |
1164 __ mov(rdi, rcx); // c_rarg0 | |
1165 __ mov(rsi, rdx); // c_rarg1 | |
1166 __ mov(rdx, r8); // c_rarg2 | |
0 | 1167 if (nargs >= 4) |
304 | 1168 __ mov(rcx, rax); // c_rarg3 (via rax) |
0 | 1169 #else |
1170 assert(c_rarg0 == rdi && c_rarg1 == rsi && c_rarg2 == rdx && c_rarg3 == rcx, | |
1171 "unexpected argument registers"); | |
1172 #endif | |
1173 } | |
1174 | |
1175 void restore_arg_regs() { | |
1176 const Register saved_rdi = r9; | |
1177 const Register saved_rsi = r10; | |
1178 #ifdef _WIN64 | |
304 | 1179 __ movptr(rdi, saved_rdi); |
1180 __ movptr(rsi, saved_rsi); | |
0 | 1181 #endif |
1182 } | |
1183 | |
1184 // Generate code for an array write pre barrier | |
1185 // | |
1186 // addr - starting address | |
2324 | 1187 // count - element count |
1188 // tmp - scratch register | |
0 | 1189 // |
1190 // Destroy no registers! | |
1191 // | |
2324 | 1192 void gen_write_ref_array_pre_barrier(Register addr, Register count, bool dest_uninitialized) { |
0 | 1193 BarrierSet* bs = Universe::heap()->barrier_set(); |
1194 switch (bs->kind()) { | |
1195 case BarrierSet::G1SATBCT: | |
1196 case BarrierSet::G1SATBCTLogging: | |
2324 | 1197 // With G1, don't generate the call if we statically know that the target in uninitialized |
1198 if (!dest_uninitialized) { | |
1199 __ pusha(); // push registers | |
1200 if (count == c_rarg0) { | |
1201 if (addr == c_rarg1) { | |
1202 // exactly backwards!! | |
1203 __ xchgptr(c_rarg1, c_rarg0); | |
1204 } else { | |
1205 __ movptr(c_rarg1, count); | |
1206 __ movptr(c_rarg0, addr); | |
1207 } | |
1208 } else { | |
1209 __ movptr(c_rarg0, addr); | |
1210 __ movptr(c_rarg1, count); | |
1211 } | |
1212 __ call_VM_leaf(CAST_FROM_FN_PTR(address, BarrierSet::static_write_ref_array_pre), 2); | |
1213 __ popa(); | |
0 | 1214 } |
2324 | 1215 break; |
0 | 1216 case BarrierSet::CardTableModRef: |
1217 case BarrierSet::CardTableExtension: | |
1218 case BarrierSet::ModRef: | |
1219 break; | |
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1220 default: |
0 | 1221 ShouldNotReachHere(); |
1222 | |
1223 } | |
1224 } | |
1225 | |
1226 // | |
1227 // Generate code for an array write post barrier | |
1228 // | |
1229 // Input: | |
1230 // start - register containing starting address of destination array | |
1231 // end - register containing ending address of destination array | |
1232 // scratch - scratch register | |
1233 // | |
1234 // The input registers are overwritten. | |
1235 // The ending address is inclusive. | |
1236 void gen_write_ref_array_post_barrier(Register start, Register end, Register scratch) { | |
1237 assert_different_registers(start, end, scratch); | |
1238 BarrierSet* bs = Universe::heap()->barrier_set(); | |
1239 switch (bs->kind()) { | |
1240 case BarrierSet::G1SATBCT: | |
1241 case BarrierSet::G1SATBCTLogging: | |
1242 | |
1243 { | |
304 | 1244 __ pusha(); // push registers (overkill) |
0 | 1245 // must compute element count unless barrier set interface is changed (other platforms supply count) |
1246 assert_different_registers(start, end, scratch); | |
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1247 __ lea(scratch, Address(end, BytesPerHeapOop)); |
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1248 __ subptr(scratch, start); // subtract start to get #bytes |
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1249 __ shrptr(scratch, LogBytesPerHeapOop); // convert to element count |
304 | 1250 __ mov(c_rarg0, start); |
1251 __ mov(c_rarg1, scratch); | |
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1252 __ call_VM_leaf(CAST_FROM_FN_PTR(address, BarrierSet::static_write_ref_array_post), 2); |
304 | 1253 __ popa(); |
0 | 1254 } |
1255 break; | |
1256 case BarrierSet::CardTableModRef: | |
1257 case BarrierSet::CardTableExtension: | |
1258 { | |
1259 CardTableModRefBS* ct = (CardTableModRefBS*)bs; | |
1260 assert(sizeof(*ct->byte_map_base) == sizeof(jbyte), "adjust this code"); | |
1261 | |
1262 Label L_loop; | |
1263 | |
304 | 1264 __ shrptr(start, CardTableModRefBS::card_shift); |
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1265 __ addptr(end, BytesPerHeapOop); |
304 | 1266 __ shrptr(end, CardTableModRefBS::card_shift); |
1267 __ subptr(end, start); // number of bytes to copy | |
0 | 1268 |
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1269 intptr_t disp = (intptr_t) ct->byte_map_base; |
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1270 if (Assembler::is_simm32(disp)) { |
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1271 Address cardtable(noreg, noreg, Address::no_scale, disp); |
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1272 __ lea(scratch, cardtable); |
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1273 } else { |
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1274 ExternalAddress cardtable((address)disp); |
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1275 __ lea(scratch, cardtable); |
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1276 } |
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1277 |
0 | 1278 const Register count = end; // 'end' register contains bytes count now |
304 | 1279 __ addptr(start, scratch); |
0 | 1280 __ BIND(L_loop); |
1281 __ movb(Address(start, count, Address::times_1), 0); | |
304 | 1282 __ decrement(count); |
0 | 1283 __ jcc(Assembler::greaterEqual, L_loop); |
1284 } | |
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1285 break; |
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1286 default: |
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1287 ShouldNotReachHere(); |
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1288 |
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1289 } |
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1290 } |
0 | 1291 |
405 | 1292 |
0 | 1293 // Copy big chunks forward |
1294 // | |
1295 // Inputs: | |
1296 // end_from - source arrays end address | |
1297 // end_to - destination array end address | |
1298 // qword_count - 64-bits element count, negative | |
1299 // to - scratch | |
1300 // L_copy_32_bytes - entry label | |
1301 // L_copy_8_bytes - exit label | |
1302 // | |
1303 void copy_32_bytes_forward(Register end_from, Register end_to, | |
1304 Register qword_count, Register to, | |
1305 Label& L_copy_32_bytes, Label& L_copy_8_bytes) { | |
1306 DEBUG_ONLY(__ stop("enter at entry label, not here")); | |
1307 Label L_loop; | |
1365 | 1308 __ align(OptoLoopAlignment); |
0 | 1309 __ BIND(L_loop); |
405 | 1310 if(UseUnalignedLoadStores) { |
1311 __ movdqu(xmm0, Address(end_from, qword_count, Address::times_8, -24)); | |
1312 __ movdqu(Address(end_to, qword_count, Address::times_8, -24), xmm0); | |
1313 __ movdqu(xmm1, Address(end_from, qword_count, Address::times_8, - 8)); | |
1314 __ movdqu(Address(end_to, qword_count, Address::times_8, - 8), xmm1); | |
1315 | |
1316 } else { | |
1317 __ movq(to, Address(end_from, qword_count, Address::times_8, -24)); | |
1318 __ movq(Address(end_to, qword_count, Address::times_8, -24), to); | |
1319 __ movq(to, Address(end_from, qword_count, Address::times_8, -16)); | |
1320 __ movq(Address(end_to, qword_count, Address::times_8, -16), to); | |
1321 __ movq(to, Address(end_from, qword_count, Address::times_8, - 8)); | |
1322 __ movq(Address(end_to, qword_count, Address::times_8, - 8), to); | |
1323 __ movq(to, Address(end_from, qword_count, Address::times_8, - 0)); | |
1324 __ movq(Address(end_to, qword_count, Address::times_8, - 0), to); | |
1325 } | |
0 | 1326 __ BIND(L_copy_32_bytes); |
304 | 1327 __ addptr(qword_count, 4); |
0 | 1328 __ jcc(Assembler::lessEqual, L_loop); |
304 | 1329 __ subptr(qword_count, 4); |
0 | 1330 __ jcc(Assembler::less, L_copy_8_bytes); // Copy trailing qwords |
1331 } | |
1332 | |
1333 | |
1334 // Copy big chunks backward | |
1335 // | |
1336 // Inputs: | |
1337 // from - source arrays address | |
1338 // dest - destination array address | |
1339 // qword_count - 64-bits element count | |
1340 // to - scratch | |
1341 // L_copy_32_bytes - entry label | |
1342 // L_copy_8_bytes - exit label | |
1343 // | |
1344 void copy_32_bytes_backward(Register from, Register dest, | |
1345 Register qword_count, Register to, | |
1346 Label& L_copy_32_bytes, Label& L_copy_8_bytes) { | |
1347 DEBUG_ONLY(__ stop("enter at entry label, not here")); | |
1348 Label L_loop; | |
1365 | 1349 __ align(OptoLoopAlignment); |
0 | 1350 __ BIND(L_loop); |
405 | 1351 if(UseUnalignedLoadStores) { |
1352 __ movdqu(xmm0, Address(from, qword_count, Address::times_8, 16)); | |
1353 __ movdqu(Address(dest, qword_count, Address::times_8, 16), xmm0); | |
1354 __ movdqu(xmm1, Address(from, qword_count, Address::times_8, 0)); | |
1355 __ movdqu(Address(dest, qword_count, Address::times_8, 0), xmm1); | |
1356 | |
1357 } else { | |
1358 __ movq(to, Address(from, qword_count, Address::times_8, 24)); | |
1359 __ movq(Address(dest, qword_count, Address::times_8, 24), to); | |
1360 __ movq(to, Address(from, qword_count, Address::times_8, 16)); | |
1361 __ movq(Address(dest, qword_count, Address::times_8, 16), to); | |
1362 __ movq(to, Address(from, qword_count, Address::times_8, 8)); | |
1363 __ movq(Address(dest, qword_count, Address::times_8, 8), to); | |
1364 __ movq(to, Address(from, qword_count, Address::times_8, 0)); | |
1365 __ movq(Address(dest, qword_count, Address::times_8, 0), to); | |
1366 } | |
0 | 1367 __ BIND(L_copy_32_bytes); |
304 | 1368 __ subptr(qword_count, 4); |
0 | 1369 __ jcc(Assembler::greaterEqual, L_loop); |
304 | 1370 __ addptr(qword_count, 4); |
0 | 1371 __ jcc(Assembler::greater, L_copy_8_bytes); // Copy trailing qwords |
1372 } | |
1373 | |
1374 | |
1375 // Arguments: | |
1376 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
1377 // ignored | |
1378 // name - stub name string | |
1379 // | |
1380 // Inputs: | |
1381 // c_rarg0 - source array address | |
1382 // c_rarg1 - destination array address | |
1383 // c_rarg2 - element count, treated as ssize_t, can be zero | |
1384 // | |
1385 // If 'from' and/or 'to' are aligned on 4-, 2-, or 1-byte boundaries, | |
1386 // we let the hardware handle it. The one to eight bytes within words, | |
1387 // dwords or qwords that span cache line boundaries will still be loaded | |
1388 // and stored atomically. | |
1389 // | |
1390 // Side Effects: | |
1391 // disjoint_byte_copy_entry is set to the no-overlap entry point | |
1392 // used by generate_conjoint_byte_copy(). | |
1393 // | |
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1394 address generate_disjoint_byte_copy(bool aligned, address* entry, const char *name) { |
0 | 1395 __ align(CodeEntryAlignment); |
1396 StubCodeMark mark(this, "StubRoutines", name); | |
1397 address start = __ pc(); | |
1398 | |
1399 Label L_copy_32_bytes, L_copy_8_bytes, L_copy_4_bytes, L_copy_2_bytes; | |
1400 Label L_copy_byte, L_exit; | |
1401 const Register from = rdi; // source array address | |
1402 const Register to = rsi; // destination array address | |
1403 const Register count = rdx; // elements count | |
1404 const Register byte_count = rcx; | |
1405 const Register qword_count = count; | |
1406 const Register end_from = from; // source array end address | |
1407 const Register end_to = to; // destination array end address | |
1408 // End pointers are inclusive, and if count is not zero they point | |
1409 // to the last unit copied: end_to[0] := end_from[0] | |
1410 | |
1411 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
1412 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
1413 | |
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1414 if (entry != NULL) { |
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1415 *entry = __ pc(); |
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1416 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1417 BLOCK_COMMENT("Entry:"); |
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1418 } |
0 | 1419 |
1420 setup_arg_regs(); // from => rdi, to => rsi, count => rdx | |
1421 // r9 and r10 may be used to save non-volatile registers | |
1422 | |
1423 // 'from', 'to' and 'count' are now valid | |
304 | 1424 __ movptr(byte_count, count); |
1425 __ shrptr(count, 3); // count => qword_count | |
0 | 1426 |
1427 // Copy from low to high addresses. Use 'to' as scratch. | |
304 | 1428 __ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
1429 __ lea(end_to, Address(to, qword_count, Address::times_8, -8)); | |
1430 __ negptr(qword_count); // make the count negative | |
0 | 1431 __ jmp(L_copy_32_bytes); |
1432 | |
1433 // Copy trailing qwords | |
1434 __ BIND(L_copy_8_bytes); | |
1435 __ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); | |
1436 __ movq(Address(end_to, qword_count, Address::times_8, 8), rax); | |
304 | 1437 __ increment(qword_count); |
0 | 1438 __ jcc(Assembler::notZero, L_copy_8_bytes); |
1439 | |
1440 // Check for and copy trailing dword | |
1441 __ BIND(L_copy_4_bytes); | |
304 | 1442 __ testl(byte_count, 4); |
0 | 1443 __ jccb(Assembler::zero, L_copy_2_bytes); |
1444 __ movl(rax, Address(end_from, 8)); | |
1445 __ movl(Address(end_to, 8), rax); | |
1446 | |
304 | 1447 __ addptr(end_from, 4); |
1448 __ addptr(end_to, 4); | |
0 | 1449 |
1450 // Check for and copy trailing word | |
1451 __ BIND(L_copy_2_bytes); | |
304 | 1452 __ testl(byte_count, 2); |
0 | 1453 __ jccb(Assembler::zero, L_copy_byte); |
1454 __ movw(rax, Address(end_from, 8)); | |
1455 __ movw(Address(end_to, 8), rax); | |
1456 | |
304 | 1457 __ addptr(end_from, 2); |
1458 __ addptr(end_to, 2); | |
0 | 1459 |
1460 // Check for and copy trailing byte | |
1461 __ BIND(L_copy_byte); | |
304 | 1462 __ testl(byte_count, 1); |
0 | 1463 __ jccb(Assembler::zero, L_exit); |
1464 __ movb(rax, Address(end_from, 8)); | |
1465 __ movb(Address(end_to, 8), rax); | |
1466 | |
1467 __ BIND(L_exit); | |
1468 restore_arg_regs(); | |
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1469 inc_counter_np(SharedRuntime::_jbyte_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1470 __ xorptr(rax, rax); // return 0 |
0 | 1471 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1472 __ ret(0); | |
1473 | |
1474 // Copy in 32-bytes chunks | |
1475 copy_32_bytes_forward(end_from, end_to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); | |
1476 __ jmp(L_copy_4_bytes); | |
1477 | |
1478 return start; | |
1479 } | |
1480 | |
1481 // Arguments: | |
1482 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
1483 // ignored | |
1484 // name - stub name string | |
1485 // | |
1486 // Inputs: | |
1487 // c_rarg0 - source array address | |
1488 // c_rarg1 - destination array address | |
1489 // c_rarg2 - element count, treated as ssize_t, can be zero | |
1490 // | |
1491 // If 'from' and/or 'to' are aligned on 4-, 2-, or 1-byte boundaries, | |
1492 // we let the hardware handle it. The one to eight bytes within words, | |
1493 // dwords or qwords that span cache line boundaries will still be loaded | |
1494 // and stored atomically. | |
1495 // | |
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1496 address generate_conjoint_byte_copy(bool aligned, address nooverlap_target, |
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1497 address* entry, const char *name) { |
0 | 1498 __ align(CodeEntryAlignment); |
1499 StubCodeMark mark(this, "StubRoutines", name); | |
1500 address start = __ pc(); | |
1501 | |
1502 Label L_copy_32_bytes, L_copy_8_bytes, L_copy_4_bytes, L_copy_2_bytes; | |
1503 const Register from = rdi; // source array address | |
1504 const Register to = rsi; // destination array address | |
1505 const Register count = rdx; // elements count | |
1506 const Register byte_count = rcx; | |
1507 const Register qword_count = count; | |
1508 | |
1509 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
1510 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
1511 | |
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1512 if (entry != NULL) { |
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1513 *entry = __ pc(); |
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1514 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1515 BLOCK_COMMENT("Entry:"); |
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1516 } |
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1517 |
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1518 array_overlap_test(nooverlap_target, Address::times_1); |
0 | 1519 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
1520 // r9 and r10 may be used to save non-volatile registers | |
1521 | |
1522 // 'from', 'to' and 'count' are now valid | |
304 | 1523 __ movptr(byte_count, count); |
1524 __ shrptr(count, 3); // count => qword_count | |
0 | 1525 |
1526 // Copy from high to low addresses. | |
1527 | |
1528 // Check for and copy trailing byte | |
304 | 1529 __ testl(byte_count, 1); |
0 | 1530 __ jcc(Assembler::zero, L_copy_2_bytes); |
1531 __ movb(rax, Address(from, byte_count, Address::times_1, -1)); | |
1532 __ movb(Address(to, byte_count, Address::times_1, -1), rax); | |
304 | 1533 __ decrement(byte_count); // Adjust for possible trailing word |
0 | 1534 |
1535 // Check for and copy trailing word | |
1536 __ BIND(L_copy_2_bytes); | |
304 | 1537 __ testl(byte_count, 2); |
0 | 1538 __ jcc(Assembler::zero, L_copy_4_bytes); |
1539 __ movw(rax, Address(from, byte_count, Address::times_1, -2)); | |
1540 __ movw(Address(to, byte_count, Address::times_1, -2), rax); | |
1541 | |
1542 // Check for and copy trailing dword | |
1543 __ BIND(L_copy_4_bytes); | |
304 | 1544 __ testl(byte_count, 4); |
0 | 1545 __ jcc(Assembler::zero, L_copy_32_bytes); |
1546 __ movl(rax, Address(from, qword_count, Address::times_8)); | |
1547 __ movl(Address(to, qword_count, Address::times_8), rax); | |
1548 __ jmp(L_copy_32_bytes); | |
1549 | |
1550 // Copy trailing qwords | |
1551 __ BIND(L_copy_8_bytes); | |
1552 __ movq(rax, Address(from, qword_count, Address::times_8, -8)); | |
1553 __ movq(Address(to, qword_count, Address::times_8, -8), rax); | |
304 | 1554 __ decrement(qword_count); |
0 | 1555 __ jcc(Assembler::notZero, L_copy_8_bytes); |
1556 | |
1557 restore_arg_regs(); | |
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1558 inc_counter_np(SharedRuntime::_jbyte_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1559 __ xorptr(rax, rax); // return 0 |
0 | 1560 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1561 __ ret(0); | |
1562 | |
1563 // Copy in 32-bytes chunks | |
1564 copy_32_bytes_backward(from, to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); | |
1565 | |
1566 restore_arg_regs(); | |
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1567 inc_counter_np(SharedRuntime::_jbyte_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1568 __ xorptr(rax, rax); // return 0 |
0 | 1569 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1570 __ ret(0); | |
1571 | |
1572 return start; | |
1573 } | |
1574 | |
1575 // Arguments: | |
1576 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
1577 // ignored | |
1578 // name - stub name string | |
1579 // | |
1580 // Inputs: | |
1581 // c_rarg0 - source array address | |
1582 // c_rarg1 - destination array address | |
1583 // c_rarg2 - element count, treated as ssize_t, can be zero | |
1584 // | |
1585 // If 'from' and/or 'to' are aligned on 4- or 2-byte boundaries, we | |
1586 // let the hardware handle it. The two or four words within dwords | |
1587 // or qwords that span cache line boundaries will still be loaded | |
1588 // and stored atomically. | |
1589 // | |
1590 // Side Effects: | |
1591 // disjoint_short_copy_entry is set to the no-overlap entry point | |
1592 // used by generate_conjoint_short_copy(). | |
1593 // | |
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1594 address generate_disjoint_short_copy(bool aligned, address *entry, const char *name) { |
0 | 1595 __ align(CodeEntryAlignment); |
1596 StubCodeMark mark(this, "StubRoutines", name); | |
1597 address start = __ pc(); | |
1598 | |
1599 Label L_copy_32_bytes, L_copy_8_bytes, L_copy_4_bytes,L_copy_2_bytes,L_exit; | |
1600 const Register from = rdi; // source array address | |
1601 const Register to = rsi; // destination array address | |
1602 const Register count = rdx; // elements count | |
1603 const Register word_count = rcx; | |
1604 const Register qword_count = count; | |
1605 const Register end_from = from; // source array end address | |
1606 const Register end_to = to; // destination array end address | |
1607 // End pointers are inclusive, and if count is not zero they point | |
1608 // to the last unit copied: end_to[0] := end_from[0] | |
1609 | |
1610 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
1611 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
1612 | |
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1613 if (entry != NULL) { |
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1614 *entry = __ pc(); |
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1615 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1616 BLOCK_COMMENT("Entry:"); |
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1617 } |
0 | 1618 |
1619 setup_arg_regs(); // from => rdi, to => rsi, count => rdx | |
1620 // r9 and r10 may be used to save non-volatile registers | |
1621 | |
1622 // 'from', 'to' and 'count' are now valid | |
304 | 1623 __ movptr(word_count, count); |
1624 __ shrptr(count, 2); // count => qword_count | |
0 | 1625 |
1626 // Copy from low to high addresses. Use 'to' as scratch. | |
304 | 1627 __ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
1628 __ lea(end_to, Address(to, qword_count, Address::times_8, -8)); | |
1629 __ negptr(qword_count); | |
0 | 1630 __ jmp(L_copy_32_bytes); |
1631 | |
1632 // Copy trailing qwords | |
1633 __ BIND(L_copy_8_bytes); | |
1634 __ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); | |
1635 __ movq(Address(end_to, qword_count, Address::times_8, 8), rax); | |
304 | 1636 __ increment(qword_count); |
0 | 1637 __ jcc(Assembler::notZero, L_copy_8_bytes); |
1638 | |
1639 // Original 'dest' is trashed, so we can't use it as a | |
1640 // base register for a possible trailing word copy | |
1641 | |
1642 // Check for and copy trailing dword | |
1643 __ BIND(L_copy_4_bytes); | |
304 | 1644 __ testl(word_count, 2); |
0 | 1645 __ jccb(Assembler::zero, L_copy_2_bytes); |
1646 __ movl(rax, Address(end_from, 8)); | |
1647 __ movl(Address(end_to, 8), rax); | |
1648 | |
304 | 1649 __ addptr(end_from, 4); |
1650 __ addptr(end_to, 4); | |
0 | 1651 |
1652 // Check for and copy trailing word | |
1653 __ BIND(L_copy_2_bytes); | |
304 | 1654 __ testl(word_count, 1); |
0 | 1655 __ jccb(Assembler::zero, L_exit); |
1656 __ movw(rax, Address(end_from, 8)); | |
1657 __ movw(Address(end_to, 8), rax); | |
1658 | |
1659 __ BIND(L_exit); | |
1660 restore_arg_regs(); | |
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1661 inc_counter_np(SharedRuntime::_jshort_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1662 __ xorptr(rax, rax); // return 0 |
0 | 1663 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1664 __ ret(0); | |
1665 | |
1666 // Copy in 32-bytes chunks | |
1667 copy_32_bytes_forward(end_from, end_to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); | |
1668 __ jmp(L_copy_4_bytes); | |
1669 | |
1670 return start; | |
1671 } | |
1672 | |
1763 | 1673 address generate_fill(BasicType t, bool aligned, const char *name) { |
1674 __ align(CodeEntryAlignment); | |
1675 StubCodeMark mark(this, "StubRoutines", name); | |
1676 address start = __ pc(); | |
1677 | |
1678 BLOCK_COMMENT("Entry:"); | |
1679 | |
1680 const Register to = c_rarg0; // source array address | |
1681 const Register value = c_rarg1; // value | |
1682 const Register count = c_rarg2; // elements count | |
1683 | |
1684 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
1685 | |
1686 __ generate_fill(t, aligned, to, value, count, rax, xmm0); | |
1687 | |
1688 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
1689 __ ret(0); | |
1690 return start; | |
1691 } | |
1692 | |
0 | 1693 // Arguments: |
1694 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
1695 // ignored | |
1696 // name - stub name string | |
1697 // | |
1698 // Inputs: | |
1699 // c_rarg0 - source array address | |
1700 // c_rarg1 - destination array address | |
1701 // c_rarg2 - element count, treated as ssize_t, can be zero | |
1702 // | |
1703 // If 'from' and/or 'to' are aligned on 4- or 2-byte boundaries, we | |
1704 // let the hardware handle it. The two or four words within dwords | |
1705 // or qwords that span cache line boundaries will still be loaded | |
1706 // and stored atomically. | |
1707 // | |
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1708 address generate_conjoint_short_copy(bool aligned, address nooverlap_target, |
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1709 address *entry, const char *name) { |
0 | 1710 __ align(CodeEntryAlignment); |
1711 StubCodeMark mark(this, "StubRoutines", name); | |
1712 address start = __ pc(); | |
1713 | |
1714 Label L_copy_32_bytes, L_copy_8_bytes, L_copy_4_bytes; | |
1715 const Register from = rdi; // source array address | |
1716 const Register to = rsi; // destination array address | |
1717 const Register count = rdx; // elements count | |
1718 const Register word_count = rcx; | |
1719 const Register qword_count = count; | |
1720 | |
1721 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
1722 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
1723 | |
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1724 if (entry != NULL) { |
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1725 *entry = __ pc(); |
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1726 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1727 BLOCK_COMMENT("Entry:"); |
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1728 } |
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1729 |
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1730 array_overlap_test(nooverlap_target, Address::times_2); |
0 | 1731 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
1732 // r9 and r10 may be used to save non-volatile registers | |
1733 | |
1734 // 'from', 'to' and 'count' are now valid | |
304 | 1735 __ movptr(word_count, count); |
1736 __ shrptr(count, 2); // count => qword_count | |
0 | 1737 |
1738 // Copy from high to low addresses. Use 'to' as scratch. | |
1739 | |
1740 // Check for and copy trailing word | |
304 | 1741 __ testl(word_count, 1); |
0 | 1742 __ jccb(Assembler::zero, L_copy_4_bytes); |
1743 __ movw(rax, Address(from, word_count, Address::times_2, -2)); | |
1744 __ movw(Address(to, word_count, Address::times_2, -2), rax); | |
1745 | |
1746 // Check for and copy trailing dword | |
1747 __ BIND(L_copy_4_bytes); | |
304 | 1748 __ testl(word_count, 2); |
0 | 1749 __ jcc(Assembler::zero, L_copy_32_bytes); |
1750 __ movl(rax, Address(from, qword_count, Address::times_8)); | |
1751 __ movl(Address(to, qword_count, Address::times_8), rax); | |
1752 __ jmp(L_copy_32_bytes); | |
1753 | |
1754 // Copy trailing qwords | |
1755 __ BIND(L_copy_8_bytes); | |
1756 __ movq(rax, Address(from, qword_count, Address::times_8, -8)); | |
1757 __ movq(Address(to, qword_count, Address::times_8, -8), rax); | |
304 | 1758 __ decrement(qword_count); |
0 | 1759 __ jcc(Assembler::notZero, L_copy_8_bytes); |
1760 | |
1761 restore_arg_regs(); | |
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1762 inc_counter_np(SharedRuntime::_jshort_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1763 __ xorptr(rax, rax); // return 0 |
0 | 1764 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1765 __ ret(0); | |
1766 | |
1767 // Copy in 32-bytes chunks | |
1768 copy_32_bytes_backward(from, to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); | |
1769 | |
1770 restore_arg_regs(); | |
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1771 inc_counter_np(SharedRuntime::_jshort_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1772 __ xorptr(rax, rax); // return 0 |
0 | 1773 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1774 __ ret(0); | |
1775 | |
1776 return start; | |
1777 } | |
1778 | |
1779 // Arguments: | |
1780 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
1781 // ignored | |
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1782 // is_oop - true => oop array, so generate store check code |
0 | 1783 // name - stub name string |
1784 // | |
1785 // Inputs: | |
1786 // c_rarg0 - source array address | |
1787 // c_rarg1 - destination array address | |
1788 // c_rarg2 - element count, treated as ssize_t, can be zero | |
1789 // | |
1790 // If 'from' and/or 'to' are aligned on 4-byte boundaries, we let | |
1791 // the hardware handle it. The two dwords within qwords that span | |
1792 // cache line boundaries will still be loaded and stored atomicly. | |
1793 // | |
1794 // Side Effects: | |
1795 // disjoint_int_copy_entry is set to the no-overlap entry point | |
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1796 // used by generate_conjoint_int_oop_copy(). |
0 | 1797 // |
2324 | 1798 address generate_disjoint_int_oop_copy(bool aligned, bool is_oop, address* entry, |
1799 const char *name, bool dest_uninitialized = false) { | |
0 | 1800 __ align(CodeEntryAlignment); |
1801 StubCodeMark mark(this, "StubRoutines", name); | |
1802 address start = __ pc(); | |
1803 | |
1804 Label L_copy_32_bytes, L_copy_8_bytes, L_copy_4_bytes, L_exit; | |
1805 const Register from = rdi; // source array address | |
1806 const Register to = rsi; // destination array address | |
1807 const Register count = rdx; // elements count | |
1808 const Register dword_count = rcx; | |
1809 const Register qword_count = count; | |
1810 const Register end_from = from; // source array end address | |
1811 const Register end_to = to; // destination array end address | |
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1812 const Register saved_to = r11; // saved destination array address |
0 | 1813 // End pointers are inclusive, and if count is not zero they point |
1814 // to the last unit copied: end_to[0] := end_from[0] | |
1815 | |
1816 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
1817 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
1818 | |
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1819 if (entry != NULL) { |
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1820 *entry = __ pc(); |
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1821 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1822 BLOCK_COMMENT("Entry:"); |
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1823 } |
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1824 |
0 | 1825 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
1826 // r9 and r10 may be used to save non-volatile registers | |
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1827 if (is_oop) { |
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1828 __ movq(saved_to, to); |
2324 | 1829 gen_write_ref_array_pre_barrier(to, count, dest_uninitialized); |
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1830 } |
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1831 |
0 | 1832 // 'from', 'to' and 'count' are now valid |
304 | 1833 __ movptr(dword_count, count); |
1834 __ shrptr(count, 1); // count => qword_count | |
0 | 1835 |
1836 // Copy from low to high addresses. Use 'to' as scratch. | |
304 | 1837 __ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
1838 __ lea(end_to, Address(to, qword_count, Address::times_8, -8)); | |
1839 __ negptr(qword_count); | |
0 | 1840 __ jmp(L_copy_32_bytes); |
1841 | |
1842 // Copy trailing qwords | |
1843 __ BIND(L_copy_8_bytes); | |
1844 __ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); | |
1845 __ movq(Address(end_to, qword_count, Address::times_8, 8), rax); | |
304 | 1846 __ increment(qword_count); |
0 | 1847 __ jcc(Assembler::notZero, L_copy_8_bytes); |
1848 | |
1849 // Check for and copy trailing dword | |
1850 __ BIND(L_copy_4_bytes); | |
304 | 1851 __ testl(dword_count, 1); // Only byte test since the value is 0 or 1 |
0 | 1852 __ jccb(Assembler::zero, L_exit); |
1853 __ movl(rax, Address(end_from, 8)); | |
1854 __ movl(Address(end_to, 8), rax); | |
1855 | |
1856 __ BIND(L_exit); | |
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1857 if (is_oop) { |
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1858 __ leaq(end_to, Address(saved_to, dword_count, Address::times_4, -4)); |
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1859 gen_write_ref_array_post_barrier(saved_to, end_to, rax); |
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1860 } |
0 | 1861 restore_arg_regs(); |
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1862 inc_counter_np(SharedRuntime::_jint_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1863 __ xorptr(rax, rax); // return 0 |
0 | 1864 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1865 __ ret(0); | |
1866 | |
1867 // Copy 32-bytes chunks | |
1868 copy_32_bytes_forward(end_from, end_to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); | |
1869 __ jmp(L_copy_4_bytes); | |
1870 | |
1871 return start; | |
1872 } | |
1873 | |
1874 // Arguments: | |
1875 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
1876 // ignored | |
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1877 // is_oop - true => oop array, so generate store check code |
0 | 1878 // name - stub name string |
1879 // | |
1880 // Inputs: | |
1881 // c_rarg0 - source array address | |
1882 // c_rarg1 - destination array address | |
1883 // c_rarg2 - element count, treated as ssize_t, can be zero | |
1884 // | |
1885 // If 'from' and/or 'to' are aligned on 4-byte boundaries, we let | |
1886 // the hardware handle it. The two dwords within qwords that span | |
1887 // cache line boundaries will still be loaded and stored atomicly. | |
1888 // | |
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1889 address generate_conjoint_int_oop_copy(bool aligned, bool is_oop, address nooverlap_target, |
2324 | 1890 address *entry, const char *name, |
1891 bool dest_uninitialized = false) { | |
0 | 1892 __ align(CodeEntryAlignment); |
1893 StubCodeMark mark(this, "StubRoutines", name); | |
1894 address start = __ pc(); | |
1895 | |
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1896 Label L_copy_32_bytes, L_copy_8_bytes, L_copy_2_bytes, L_exit; |
0 | 1897 const Register from = rdi; // source array address |
1898 const Register to = rsi; // destination array address | |
1899 const Register count = rdx; // elements count | |
1900 const Register dword_count = rcx; | |
1901 const Register qword_count = count; | |
1902 | |
1903 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
1904 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
1905 | |
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1906 if (entry != NULL) { |
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1907 *entry = __ pc(); |
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1908 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1909 BLOCK_COMMENT("Entry:"); |
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1910 } |
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1911 |
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1912 array_overlap_test(nooverlap_target, Address::times_4); |
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1913 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
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1914 // r9 and r10 may be used to save non-volatile registers |
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1915 |
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1916 if (is_oop) { |
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1917 // no registers are destroyed by this call |
2324 | 1918 gen_write_ref_array_pre_barrier(to, count, dest_uninitialized); |
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1919 } |
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1920 |
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1921 assert_clean_int(count, rax); // Make sure 'count' is clean int. |
0 | 1922 // 'from', 'to' and 'count' are now valid |
304 | 1923 __ movptr(dword_count, count); |
1924 __ shrptr(count, 1); // count => qword_count | |
0 | 1925 |
1926 // Copy from high to low addresses. Use 'to' as scratch. | |
1927 | |
1928 // Check for and copy trailing dword | |
304 | 1929 __ testl(dword_count, 1); |
0 | 1930 __ jcc(Assembler::zero, L_copy_32_bytes); |
1931 __ movl(rax, Address(from, dword_count, Address::times_4, -4)); | |
1932 __ movl(Address(to, dword_count, Address::times_4, -4), rax); | |
1933 __ jmp(L_copy_32_bytes); | |
1934 | |
1935 // Copy trailing qwords | |
1936 __ BIND(L_copy_8_bytes); | |
1937 __ movq(rax, Address(from, qword_count, Address::times_8, -8)); | |
1938 __ movq(Address(to, qword_count, Address::times_8, -8), rax); | |
304 | 1939 __ decrement(qword_count); |
0 | 1940 __ jcc(Assembler::notZero, L_copy_8_bytes); |
1941 | |
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1942 if (is_oop) { |
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1943 __ jmp(L_exit); |
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1944 } |
0 | 1945 restore_arg_regs(); |
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1946 inc_counter_np(SharedRuntime::_jint_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1947 __ xorptr(rax, rax); // return 0 |
0 | 1948 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1949 __ ret(0); | |
1950 | |
1951 // Copy in 32-bytes chunks | |
1952 copy_32_bytes_backward(from, to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); | |
1953 | |
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1954 __ bind(L_exit); |
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1955 if (is_oop) { |
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1956 Register end_to = rdx; |
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1957 __ leaq(end_to, Address(to, dword_count, Address::times_4, -4)); |
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1958 gen_write_ref_array_post_barrier(to, end_to, rax); |
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1959 } |
0 | 1960 restore_arg_regs(); |
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1961 inc_counter_np(SharedRuntime::_jint_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1962 __ xorptr(rax, rax); // return 0 |
0 | 1963 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1964 __ ret(0); | |
1965 | |
1966 return start; | |
1967 } | |
1968 | |
1969 // Arguments: | |
1970 // aligned - true => Input and output aligned on a HeapWord boundary == 8 bytes | |
1971 // ignored | |
1972 // is_oop - true => oop array, so generate store check code | |
1973 // name - stub name string | |
1974 // | |
1975 // Inputs: | |
1976 // c_rarg0 - source array address | |
1977 // c_rarg1 - destination array address | |
1978 // c_rarg2 - element count, treated as ssize_t, can be zero | |
1979 // | |
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1980 // Side Effects: |
0 | 1981 // disjoint_oop_copy_entry or disjoint_long_copy_entry is set to the |
1982 // no-overlap entry point used by generate_conjoint_long_oop_copy(). | |
1983 // | |
2324 | 1984 address generate_disjoint_long_oop_copy(bool aligned, bool is_oop, address *entry, |
1985 const char *name, bool dest_uninitialized = false) { | |
0 | 1986 __ align(CodeEntryAlignment); |
1987 StubCodeMark mark(this, "StubRoutines", name); | |
1988 address start = __ pc(); | |
1989 | |
1990 Label L_copy_32_bytes, L_copy_8_bytes, L_exit; | |
1991 const Register from = rdi; // source array address | |
1992 const Register to = rsi; // destination array address | |
1993 const Register qword_count = rdx; // elements count | |
1994 const Register end_from = from; // source array end address | |
1995 const Register end_to = rcx; // destination array end address | |
1996 const Register saved_to = to; | |
1997 // End pointers are inclusive, and if count is not zero they point | |
1998 // to the last unit copied: end_to[0] := end_from[0] | |
1999 | |
2000 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
2001 // Save no-overlap entry point for generate_conjoint_long_oop_copy() | |
2002 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
2003 | |
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2004 if (entry != NULL) { |
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2005 *entry = __ pc(); |
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2006 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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2007 BLOCK_COMMENT("Entry:"); |
0 | 2008 } |
2009 | |
2010 setup_arg_regs(); // from => rdi, to => rsi, count => rdx | |
2011 // r9 and r10 may be used to save non-volatile registers | |
2012 // 'from', 'to' and 'qword_count' are now valid | |
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2013 if (is_oop) { |
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2014 // no registers are destroyed by this call |
2324 | 2015 gen_write_ref_array_pre_barrier(to, qword_count, dest_uninitialized); |
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2016 } |
0 | 2017 |
2018 // Copy from low to high addresses. Use 'to' as scratch. | |
304 | 2019 __ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
2020 __ lea(end_to, Address(to, qword_count, Address::times_8, -8)); | |
2021 __ negptr(qword_count); | |
0 | 2022 __ jmp(L_copy_32_bytes); |
2023 | |
2024 // Copy trailing qwords | |
2025 __ BIND(L_copy_8_bytes); | |
2026 __ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); | |
2027 __ movq(Address(end_to, qword_count, Address::times_8, 8), rax); | |
304 | 2028 __ increment(qword_count); |
0 | 2029 __ jcc(Assembler::notZero, L_copy_8_bytes); |
2030 | |
2031 if (is_oop) { | |
2032 __ jmp(L_exit); | |
2033 } else { | |
2034 restore_arg_regs(); | |
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2035 inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 2036 __ xorptr(rax, rax); // return 0 |
0 | 2037 __ leave(); // required for proper stackwalking of RuntimeStub frame |
2038 __ ret(0); | |
2039 } | |
2040 | |
2041 // Copy 64-byte chunks | |
2042 copy_32_bytes_forward(end_from, end_to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); | |
2043 | |
2044 if (is_oop) { | |
2045 __ BIND(L_exit); | |
2046 gen_write_ref_array_post_barrier(saved_to, end_to, rax); | |
2047 } | |
2048 restore_arg_regs(); | |
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2049 if (is_oop) { |
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2050 inc_counter_np(SharedRuntime::_oop_array_copy_ctr); // Update counter after rscratch1 is free |
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2051 } else { |
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2052 inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); // Update counter after rscratch1 is free |
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2053 } |
304 | 2054 __ xorptr(rax, rax); // return 0 |
0 | 2055 __ leave(); // required for proper stackwalking of RuntimeStub frame |
2056 __ ret(0); | |
2057 | |
2058 return start; | |
2059 } | |
2060 | |
2061 // Arguments: | |
2062 // aligned - true => Input and output aligned on a HeapWord boundary == 8 bytes | |
2063 // ignored | |
2064 // is_oop - true => oop array, so generate store check code | |
2065 // name - stub name string | |
2066 // | |
2067 // Inputs: | |
2068 // c_rarg0 - source array address | |
2069 // c_rarg1 - destination array address | |
2070 // c_rarg2 - element count, treated as ssize_t, can be zero | |
2071 // | |
2324 | 2072 address generate_conjoint_long_oop_copy(bool aligned, bool is_oop, |
2073 address nooverlap_target, address *entry, | |
2074 const char *name, bool dest_uninitialized = false) { | |
0 | 2075 __ align(CodeEntryAlignment); |
2076 StubCodeMark mark(this, "StubRoutines", name); | |
2077 address start = __ pc(); | |
2078 | |
2079 Label L_copy_32_bytes, L_copy_8_bytes, L_exit; | |
2080 const Register from = rdi; // source array address | |
2081 const Register to = rsi; // destination array address | |
2082 const Register qword_count = rdx; // elements count | |
2083 const Register saved_count = rcx; | |
2084 | |
2085 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
2086 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
2087 | |
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2088 if (entry != NULL) { |
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2089 *entry = __ pc(); |
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2090 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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2091 BLOCK_COMMENT("Entry:"); |
0 | 2092 } |
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2093 |
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2094 array_overlap_test(nooverlap_target, Address::times_8); |
0 | 2095 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
2096 // r9 and r10 may be used to save non-volatile registers | |
2097 // 'from', 'to' and 'qword_count' are now valid | |
2098 if (is_oop) { | |
2099 // Save to and count for store barrier | |
304 | 2100 __ movptr(saved_count, qword_count); |
0 | 2101 // No registers are destroyed by this call |
2324 | 2102 gen_write_ref_array_pre_barrier(to, saved_count, dest_uninitialized); |
0 | 2103 } |
2104 | |
2105 __ jmp(L_copy_32_bytes); | |
2106 | |
2107 // Copy trailing qwords | |
2108 __ BIND(L_copy_8_bytes); | |
2109 __ movq(rax, Address(from, qword_count, Address::times_8, -8)); | |
2110 __ movq(Address(to, qword_count, Address::times_8, -8), rax); | |
304 | 2111 __ decrement(qword_count); |
0 | 2112 __ jcc(Assembler::notZero, L_copy_8_bytes); |
2113 | |
2114 if (is_oop) { | |
2115 __ jmp(L_exit); | |
2116 } else { | |
2117 restore_arg_regs(); | |
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2118 inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 2119 __ xorptr(rax, rax); // return 0 |
0 | 2120 __ leave(); // required for proper stackwalking of RuntimeStub frame |
2121 __ ret(0); | |
2122 } | |
2123 | |
2124 // Copy in 32-bytes chunks | |
2125 copy_32_bytes_backward(from, to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); | |
2126 | |
2127 if (is_oop) { | |
2128 __ BIND(L_exit); | |
304 | 2129 __ lea(rcx, Address(to, saved_count, Address::times_8, -8)); |
0 | 2130 gen_write_ref_array_post_barrier(to, rcx, rax); |
2131 } | |
2132 restore_arg_regs(); | |
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2133 if (is_oop) { |
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2134 inc_counter_np(SharedRuntime::_oop_array_copy_ctr); // Update counter after rscratch1 is free |
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2135 } else { |
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2136 inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); // Update counter after rscratch1 is free |
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2137 } |
304 | 2138 __ xorptr(rax, rax); // return 0 |
0 | 2139 __ leave(); // required for proper stackwalking of RuntimeStub frame |
2140 __ ret(0); | |
2141 | |
2142 return start; | |
2143 } | |
2144 | |
2145 | |
2146 // Helper for generating a dynamic type check. | |
2147 // Smashes no registers. | |
2148 void generate_type_check(Register sub_klass, | |
2149 Register super_check_offset, | |
2150 Register super_klass, | |
2151 Label& L_success) { | |
2152 assert_different_registers(sub_klass, super_check_offset, super_klass); | |
2153 | |
2154 BLOCK_COMMENT("type_check:"); | |
2155 | |
2156 Label L_miss; | |
2157 | |
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2158 __ check_klass_subtype_fast_path(sub_klass, super_klass, noreg, &L_success, &L_miss, NULL, |
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2159 super_check_offset); |
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2160 __ check_klass_subtype_slow_path(sub_klass, super_klass, noreg, noreg, &L_success, NULL); |
0 | 2161 |
2162 // Fall through on failure! | |
2163 __ BIND(L_miss); | |
2164 } | |
2165 | |
2166 // | |
2167 // Generate checkcasting array copy stub | |
2168 // | |
2169 // Input: | |
2170 // c_rarg0 - source array address | |
2171 // c_rarg1 - destination array address | |
2172 // c_rarg2 - element count, treated as ssize_t, can be zero | |
2173 // c_rarg3 - size_t ckoff (super_check_offset) | |
2174 // not Win64 | |
2175 // c_rarg4 - oop ckval (super_klass) | |
2176 // Win64 | |
2177 // rsp+40 - oop ckval (super_klass) | |
2178 // | |
2179 // Output: | |
2180 // rax == 0 - success | |
2181 // rax == -1^K - failure, where K is partial transfer count | |
2182 // | |
2324 | 2183 address generate_checkcast_copy(const char *name, address *entry, |
2184 bool dest_uninitialized = false) { | |
0 | 2185 |
2186 Label L_load_element, L_store_element, L_do_card_marks, L_done; | |
2187 | |
2188 // Input registers (after setup_arg_regs) | |
2189 const Register from = rdi; // source array address | |
2190 const Register to = rsi; // destination array address | |
2191 const Register length = rdx; // elements count | |
2192 const Register ckoff = rcx; // super_check_offset | |
2193 const Register ckval = r8; // super_klass | |
2194 | |
2195 // Registers used as temps (r13, r14 are save-on-entry) | |
2196 const Register end_from = from; // source array end address | |
2197 const Register end_to = r13; // destination array end address | |
2198 const Register count = rdx; // -(count_remaining) | |
2199 const Register r14_length = r14; // saved copy of length | |
2200 // End pointers are inclusive, and if length is not zero they point | |
2201 // to the last unit copied: end_to[0] := end_from[0] | |
2202 | |
2203 const Register rax_oop = rax; // actual oop copied | |
2204 const Register r11_klass = r11; // oop._klass | |
2205 | |
2206 //--------------------------------------------------------------- | |
2207 // Assembler stub will be used for this call to arraycopy | |
2208 // if the two arrays are subtypes of Object[] but the | |
2209 // destination array type is not equal to or a supertype | |
2210 // of the source type. Each element must be separately | |
2211 // checked. | |
2212 | |
2213 __ align(CodeEntryAlignment); | |
2214 StubCodeMark mark(this, "StubRoutines", name); | |
2215 address start = __ pc(); | |
2216 | |
2217 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
2218 | |
2219 #ifdef ASSERT | |
2220 // caller guarantees that the arrays really are different | |
2221 // otherwise, we would have to make conjoint checks | |
2222 { Label L; | |
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2223 array_overlap_test(L, TIMES_OOP); |
0 | 2224 __ stop("checkcast_copy within a single array"); |
2225 __ bind(L); | |
2226 } | |
2227 #endif //ASSERT | |
2228 | |
2229 setup_arg_regs(4); // from => rdi, to => rsi, length => rdx | |
2230 // ckoff => rcx, ckval => r8 | |
2231 // r9 and r10 may be used to save non-volatile registers | |
2232 #ifdef _WIN64 | |
2233 // last argument (#4) is on stack on Win64 | |
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2234 __ movptr(ckval, Address(rsp, 6 * wordSize)); |
0 | 2235 #endif |
2236 | |
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2237 // Caller of this entry point must set up the argument registers. |
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2238 if (entry != NULL) { |
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2239 *entry = __ pc(); |
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2240 BLOCK_COMMENT("Entry:"); |
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2241 } |
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2242 |
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2243 // allocate spill slots for r13, r14 |
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2244 enum { |
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2245 saved_r13_offset, |
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2246 saved_r14_offset, |
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2247 saved_rbp_offset |
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2248 }; |
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2249 __ subptr(rsp, saved_rbp_offset * wordSize); |
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2250 __ movptr(Address(rsp, saved_r13_offset * wordSize), r13); |
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2251 __ movptr(Address(rsp, saved_r14_offset * wordSize), r14); |
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2252 |
0 | 2253 // check that int operands are properly extended to size_t |
2254 assert_clean_int(length, rax); | |
2255 assert_clean_int(ckoff, rax); | |
2256 | |
2257 #ifdef ASSERT | |
2258 BLOCK_COMMENT("assert consistent ckoff/ckval"); | |
2259 // The ckoff and ckval must be mutually consistent, | |
2260 // even though caller generates both. | |
2261 { Label L; | |
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2262 int sco_offset = in_bytes(Klass::super_check_offset_offset()); |
0 | 2263 __ cmpl(ckoff, Address(ckval, sco_offset)); |
2264 __ jcc(Assembler::equal, L); | |
2265 __ stop("super_check_offset inconsistent"); | |
2266 __ bind(L); | |
2267 } | |
2268 #endif //ASSERT | |
2269 | |
2270 // Loop-invariant addresses. They are exclusive end pointers. | |
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2271 Address end_from_addr(from, length, TIMES_OOP, 0); |
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2272 Address end_to_addr(to, length, TIMES_OOP, 0); |
0 | 2273 // Loop-variant addresses. They assume post-incremented count < 0. |
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2274 Address from_element_addr(end_from, count, TIMES_OOP, 0); |
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2275 Address to_element_addr(end_to, count, TIMES_OOP, 0); |
0 | 2276 |
2324 | 2277 gen_write_ref_array_pre_barrier(to, count, dest_uninitialized); |
0 | 2278 |
2279 // Copy from low to high addresses, indexed from the end of each array. | |
304 | 2280 __ lea(end_from, end_from_addr); |
2281 __ lea(end_to, end_to_addr); | |
2282 __ movptr(r14_length, length); // save a copy of the length | |
2283 assert(length == count, ""); // else fix next line: | |
2284 __ negptr(count); // negate and test the length | |
0 | 2285 __ jcc(Assembler::notZero, L_load_element); |
2286 | |
2287 // Empty array: Nothing to do. | |
304 | 2288 __ xorptr(rax, rax); // return 0 on (trivial) success |
0 | 2289 __ jmp(L_done); |
2290 | |
2291 // ======== begin loop ======== | |
2292 // (Loop is rotated; its entry is L_load_element.) | |
2293 // Loop control: | |
2294 // for (count = -count; count != 0; count++) | |
2295 // Base pointers src, dst are biased by 8*(count-1),to last element. | |
1365 | 2296 __ align(OptoLoopAlignment); |
0 | 2297 |
2298 __ BIND(L_store_element); | |
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2299 __ store_heap_oop(to_element_addr, rax_oop); // store the oop |
304 | 2300 __ increment(count); // increment the count toward zero |
0 | 2301 __ jcc(Assembler::zero, L_do_card_marks); |
2302 | |
2303 // ======== loop entry is here ======== | |
2304 __ BIND(L_load_element); | |
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2305 __ load_heap_oop(rax_oop, from_element_addr); // load the oop |
304 | 2306 __ testptr(rax_oop, rax_oop); |
0 | 2307 __ jcc(Assembler::zero, L_store_element); |
2308 | |
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2309 __ load_klass(r11_klass, rax_oop);// query the object klass |
0 | 2310 generate_type_check(r11_klass, ckoff, ckval, L_store_element); |
2311 // ======== end loop ======== | |
2312 | |
2313 // It was a real error; we must depend on the caller to finish the job. | |
2314 // Register rdx = -1 * number of *remaining* oops, r14 = *total* oops. | |
2315 // Emit GC store barriers for the oops we have copied (r14 + rdx), | |
2316 // and report their number to the caller. | |
2317 assert_different_registers(rax, r14_length, count, to, end_to, rcx); | |
304 | 2318 __ lea(end_to, to_element_addr); |
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2319 __ addptr(end_to, -heapOopSize); // make an inclusive end pointer |
362 | 2320 gen_write_ref_array_post_barrier(to, end_to, rscratch1); |
304 | 2321 __ movptr(rax, r14_length); // original oops |
2322 __ addptr(rax, count); // K = (original - remaining) oops | |
2323 __ notptr(rax); // report (-1^K) to caller | |
0 | 2324 __ jmp(L_done); |
2325 | |
2326 // Come here on success only. | |
2327 __ BIND(L_do_card_marks); | |
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ysr
parents:
671
diff
changeset
|
2328 __ addptr(end_to, -heapOopSize); // make an inclusive end pointer |
362 | 2329 gen_write_ref_array_post_barrier(to, end_to, rscratch1); |
304 | 2330 __ xorptr(rax, rax); // return 0 on success |
0 | 2331 |
2332 // Common exit point (success or failure). | |
2333 __ BIND(L_done); | |
304 | 2334 __ movptr(r13, Address(rsp, saved_r13_offset * wordSize)); |
2335 __ movptr(r14, Address(rsp, saved_r14_offset * wordSize)); | |
0 | 2336 restore_arg_regs(); |
4118
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7110489: C1: 64-bit tiered with ForceUnreachable: assert(reachable(src)) failed: Address should be reachable
never
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4114
diff
changeset
|
2337 inc_counter_np(SharedRuntime::_checkcast_array_copy_ctr); // Update counter after rscratch1 is free |
0 | 2338 __ leave(); // required for proper stackwalking of RuntimeStub frame |
2339 __ ret(0); | |
2340 | |
2341 return start; | |
2342 } | |
2343 | |
2344 // | |
2345 // Generate 'unsafe' array copy stub | |
2346 // Though just as safe as the other stubs, it takes an unscaled | |
2347 // size_t argument instead of an element count. | |
2348 // | |
2349 // Input: | |
2350 // c_rarg0 - source array address | |
2351 // c_rarg1 - destination array address | |
2352 // c_rarg2 - byte count, treated as ssize_t, can be zero | |
2353 // | |
2354 // Examines the alignment of the operands and dispatches | |
2355 // to a long, int, short, or byte copy loop. | |
2356 // | |
2313
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2357 address generate_unsafe_copy(const char *name, |
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
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2006
diff
changeset
|
2358 address byte_copy_entry, address short_copy_entry, |
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7020521: arraycopy stubs place prebarriers incorrectly
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2006
diff
changeset
|
2359 address int_copy_entry, address long_copy_entry) { |
0 | 2360 |
2361 Label L_long_aligned, L_int_aligned, L_short_aligned; | |
2362 | |
2363 // Input registers (before setup_arg_regs) | |
2364 const Register from = c_rarg0; // source array address | |
2365 const Register to = c_rarg1; // destination array address | |
2366 const Register size = c_rarg2; // byte count (size_t) | |
2367 | |
2368 // Register used as a temp | |
2369 const Register bits = rax; // test copy of low bits | |
2370 | |
2371 __ align(CodeEntryAlignment); | |
2372 StubCodeMark mark(this, "StubRoutines", name); | |
2373 address start = __ pc(); | |
2374 | |
2375 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
2376 | |
2377 // bump this on entry, not on exit: | |
2378 inc_counter_np(SharedRuntime::_unsafe_array_copy_ctr); | |
2379 | |
304 | 2380 __ mov(bits, from); |
2381 __ orptr(bits, to); | |
2382 __ orptr(bits, size); | |
0 | 2383 |
2384 __ testb(bits, BytesPerLong-1); | |
2385 __ jccb(Assembler::zero, L_long_aligned); | |
2386 | |
2387 __ testb(bits, BytesPerInt-1); | |
2388 __ jccb(Assembler::zero, L_int_aligned); | |
2389 | |
2390 __ testb(bits, BytesPerShort-1); | |
2391 __ jump_cc(Assembler::notZero, RuntimeAddress(byte_copy_entry)); | |
2392 | |
2393 __ BIND(L_short_aligned); | |
304 | 2394 __ shrptr(size, LogBytesPerShort); // size => short_count |
0 | 2395 __ jump(RuntimeAddress(short_copy_entry)); |
2396 | |
2397 __ BIND(L_int_aligned); | |
304 | 2398 __ shrptr(size, LogBytesPerInt); // size => int_count |
0 | 2399 __ jump(RuntimeAddress(int_copy_entry)); |
2400 | |
2401 __ BIND(L_long_aligned); | |
304 | 2402 __ shrptr(size, LogBytesPerLong); // size => qword_count |
0 | 2403 __ jump(RuntimeAddress(long_copy_entry)); |
2404 | |
2405 return start; | |
2406 } | |
2407 | |
2408 // Perform range checks on the proposed arraycopy. | |
2409 // Kills temp, but nothing else. | |
2410 // Also, clean the sign bits of src_pos and dst_pos. | |
2411 void arraycopy_range_checks(Register src, // source array oop (c_rarg0) | |
2412 Register src_pos, // source position (c_rarg1) | |
2413 Register dst, // destination array oo (c_rarg2) | |
2414 Register dst_pos, // destination position (c_rarg3) | |
2415 Register length, | |
2416 Register temp, | |
2417 Label& L_failed) { | |
2418 BLOCK_COMMENT("arraycopy_range_checks:"); | |
2419 | |
2420 // if (src_pos + length > arrayOop(src)->length()) FAIL; | |
2421 __ movl(temp, length); | |
2422 __ addl(temp, src_pos); // src_pos + length | |
2423 __ cmpl(temp, Address(src, arrayOopDesc::length_offset_in_bytes())); | |
2424 __ jcc(Assembler::above, L_failed); | |
2425 | |
2426 // if (dst_pos + length > arrayOop(dst)->length()) FAIL; | |
2427 __ movl(temp, length); | |
2428 __ addl(temp, dst_pos); // dst_pos + length | |
2429 __ cmpl(temp, Address(dst, arrayOopDesc::length_offset_in_bytes())); | |
2430 __ jcc(Assembler::above, L_failed); | |
2431 | |
2432 // Have to clean up high 32-bits of 'src_pos' and 'dst_pos'. | |
2433 // Move with sign extension can be used since they are positive. | |
2434 __ movslq(src_pos, src_pos); | |
2435 __ movslq(dst_pos, dst_pos); | |
2436 | |
2437 BLOCK_COMMENT("arraycopy_range_checks done"); | |
2438 } | |
2439 | |
2440 // | |
2441 // Generate generic array copy stubs | |
2442 // | |
2443 // Input: | |
2444 // c_rarg0 - src oop | |
2445 // c_rarg1 - src_pos (32-bits) | |
2446 // c_rarg2 - dst oop | |
2447 // c_rarg3 - dst_pos (32-bits) | |
2448 // not Win64 | |
2449 // c_rarg4 - element count (32-bits) | |
2450 // Win64 | |
2451 // rsp+40 - element count (32-bits) | |
2452 // | |
2453 // Output: | |
2454 // rax == 0 - success | |
2455 // rax == -1^K - failure, where K is partial transfer count | |
2456 // | |
2313
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7020521: arraycopy stubs place prebarriers incorrectly
iveresov
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diff
changeset
|
2457 address generate_generic_copy(const char *name, |
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7020521: arraycopy stubs place prebarriers incorrectly
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2006
diff
changeset
|
2458 address byte_copy_entry, address short_copy_entry, |
2409
348c0df561a9
7026307: DEBUG MESSAGE: broken null klass on amd64
iveresov
parents:
2407
diff
changeset
|
2459 address int_copy_entry, address oop_copy_entry, |
348c0df561a9
7026307: DEBUG MESSAGE: broken null klass on amd64
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2407
diff
changeset
|
2460 address long_copy_entry, address checkcast_copy_entry) { |
0 | 2461 |
2462 Label L_failed, L_failed_0, L_objArray; | |
2463 Label L_copy_bytes, L_copy_shorts, L_copy_ints, L_copy_longs; | |
2464 | |
2465 // Input registers | |
2466 const Register src = c_rarg0; // source array oop | |
2467 const Register src_pos = c_rarg1; // source position | |
2468 const Register dst = c_rarg2; // destination array oop | |
2469 const Register dst_pos = c_rarg3; // destination position | |
2006
bbefa3ca1543
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
1972
diff
changeset
|
2470 #ifndef _WIN64 |
bbefa3ca1543
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
1972
diff
changeset
|
2471 const Register length = c_rarg4; |
0 | 2472 #else |
2006
bbefa3ca1543
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
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1972
diff
changeset
|
2473 const Address length(rsp, 6 * wordSize); // elements count is on stack on Win64 |
0 | 2474 #endif |
2475 | |
2476 { int modulus = CodeEntryAlignment; | |
2477 int target = modulus - 5; // 5 = sizeof jmp(L_failed) | |
2478 int advance = target - (__ offset() % modulus); | |
2479 if (advance < 0) advance += modulus; | |
2480 if (advance > 0) __ nop(advance); | |
2481 } | |
2482 StubCodeMark mark(this, "StubRoutines", name); | |
2483 | |
2484 // Short-hop target to L_failed. Makes for denser prologue code. | |
2485 __ BIND(L_failed_0); | |
2486 __ jmp(L_failed); | |
2487 assert(__ offset() % CodeEntryAlignment == 0, "no further alignment needed"); | |
2488 | |
2489 __ align(CodeEntryAlignment); | |
2490 address start = __ pc(); | |
2491 | |
2492 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
2493 | |
2494 // bump this on entry, not on exit: | |
2495 inc_counter_np(SharedRuntime::_generic_array_copy_ctr); | |
2496 | |
2497 //----------------------------------------------------------------------- | |
2498 // Assembler stub will be used for this call to arraycopy | |
2499 // if the following conditions are met: | |
2500 // | |
2501 // (1) src and dst must not be null. | |
2502 // (2) src_pos must not be negative. | |
2503 // (3) dst_pos must not be negative. | |
2504 // (4) length must not be negative. | |
2505 // (5) src klass and dst klass should be the same and not NULL. | |
2506 // (6) src and dst should be arrays. | |
2507 // (7) src_pos + length must not exceed length of src. | |
2508 // (8) dst_pos + length must not exceed length of dst. | |
2509 // | |
2510 | |
2511 // if (src == NULL) return -1; | |
304 | 2512 __ testptr(src, src); // src oop |
0 | 2513 size_t j1off = __ offset(); |
2514 __ jccb(Assembler::zero, L_failed_0); | |
2515 | |
2516 // if (src_pos < 0) return -1; | |
2517 __ testl(src_pos, src_pos); // src_pos (32-bits) | |
2518 __ jccb(Assembler::negative, L_failed_0); | |
2519 | |
2520 // if (dst == NULL) return -1; | |
304 | 2521 __ testptr(dst, dst); // dst oop |
0 | 2522 __ jccb(Assembler::zero, L_failed_0); |
2523 | |
2524 // if (dst_pos < 0) return -1; | |
2525 __ testl(dst_pos, dst_pos); // dst_pos (32-bits) | |
2526 size_t j4off = __ offset(); | |
2527 __ jccb(Assembler::negative, L_failed_0); | |
2528 | |
2529 // The first four tests are very dense code, | |
2530 // but not quite dense enough to put four | |
2531 // jumps in a 16-byte instruction fetch buffer. | |
2532 // That's good, because some branch predicters | |
2533 // do not like jumps so close together. | |
2534 // Make sure of this. | |
2535 guarantee(((j1off ^ j4off) & ~15) != 0, "I$ line of 1st & 4th jumps"); | |
2536 | |
2537 // registers used as temp | |
2538 const Register r11_length = r11; // elements count to copy | |
2539 const Register r10_src_klass = r10; // array klass | |
2540 | |
2541 // if (length < 0) return -1; | |
2006
bbefa3ca1543
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
1972
diff
changeset
|
2542 __ movl(r11_length, length); // length (elements count, 32-bits value) |
0 | 2543 __ testl(r11_length, r11_length); |
2544 __ jccb(Assembler::negative, L_failed_0); | |
2545 | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
16
diff
changeset
|
2546 __ load_klass(r10_src_klass, src); |
0 | 2547 #ifdef ASSERT |
2548 // assert(src->klass() != NULL); | |
2006
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
changeset
|
2549 { |
bbefa3ca1543
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
changeset
|
2550 BLOCK_COMMENT("assert klasses not null {"); |
bbefa3ca1543
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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1972
diff
changeset
|
2551 Label L1, L2; |
304 | 2552 __ testptr(r10_src_klass, r10_src_klass); |
0 | 2553 __ jcc(Assembler::notZero, L2); // it is broken if klass is NULL |
2554 __ bind(L1); | |
2555 __ stop("broken null klass"); | |
2556 __ bind(L2); | |
2006
bbefa3ca1543
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
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1972
diff
changeset
|
2557 __ load_klass(rax, dst); |
bbefa3ca1543
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
changeset
|
2558 __ cmpq(rax, 0); |
0 | 2559 __ jcc(Assembler::equal, L1); // this would be broken also |
2006
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
changeset
|
2560 BLOCK_COMMENT("} assert klasses not null done"); |
0 | 2561 } |
2562 #endif | |
2563 | |
2564 // Load layout helper (32-bits) | |
2565 // | |
2566 // |array_tag| | header_size | element_type | |log2_element_size| | |
2567 // 32 30 24 16 8 2 0 | |
2568 // | |
2569 // array_tag: typeArray = 0x3, objArray = 0x2, non-array = 0x0 | |
2570 // | |
2571 | |
4762
069ab3f976d3
7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
stefank
parents:
4118
diff
changeset
|
2572 const int lh_offset = in_bytes(Klass::layout_helper_offset()); |
0 | 2573 |
2574 // Handle objArrays completely differently... | |
2006
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
changeset
|
2575 const jint objArray_lh = Klass::array_layout_helper(T_OBJECT); |
bbefa3ca1543
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
changeset
|
2576 __ cmpl(Address(r10_src_klass, lh_offset), objArray_lh); |
0 | 2577 __ jcc(Assembler::equal, L_objArray); |
2578 | |
2579 // if (src->klass() != dst->klass()) return -1; | |
2006
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
changeset
|
2580 __ load_klass(rax, dst); |
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
changeset
|
2581 __ cmpq(r10_src_klass, rax); |
0 | 2582 __ jcc(Assembler::notEqual, L_failed); |
2583 | |
2006
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
changeset
|
2584 const Register rax_lh = rax; // layout helper |
bbefa3ca1543
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
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1972
diff
changeset
|
2585 __ movl(rax_lh, Address(r10_src_klass, lh_offset)); |
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
changeset
|
2586 |
0 | 2587 // if (!src->is_Array()) return -1; |
2588 __ cmpl(rax_lh, Klass::_lh_neutral_value); | |
2589 __ jcc(Assembler::greaterEqual, L_failed); | |
2590 | |
2591 // At this point, it is known to be a typeArray (array_tag 0x3). | |
2592 #ifdef ASSERT | |
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
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|
2593 { |
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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|
2594 BLOCK_COMMENT("assert primitive array {"); |
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
changeset
|
2595 Label L; |
0 | 2596 __ cmpl(rax_lh, (Klass::_lh_array_tag_type_value << Klass::_lh_array_tag_shift)); |
2597 __ jcc(Assembler::greaterEqual, L); | |
2598 __ stop("must be a primitive array"); | |
2599 __ bind(L); | |
2006
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
changeset
|
2600 BLOCK_COMMENT("} assert primitive array done"); |
0 | 2601 } |
2602 #endif | |
2603 | |
2604 arraycopy_range_checks(src, src_pos, dst, dst_pos, r11_length, | |
2605 r10, L_failed); | |
2606 | |
6831
d8ce2825b193
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6725
diff
changeset
|
2607 // TypeArrayKlass |
0 | 2608 // |
2609 // src_addr = (src + array_header_in_bytes()) + (src_pos << log2elemsize); | |
2610 // dst_addr = (dst + array_header_in_bytes()) + (dst_pos << log2elemsize); | |
2611 // | |
2612 | |
2613 const Register r10_offset = r10; // array offset | |
2614 const Register rax_elsize = rax_lh; // element size | |
2615 | |
2616 __ movl(r10_offset, rax_lh); | |
2617 __ shrl(r10_offset, Klass::_lh_header_size_shift); | |
304 | 2618 __ andptr(r10_offset, Klass::_lh_header_size_mask); // array_offset |
2619 __ addptr(src, r10_offset); // src array offset | |
2620 __ addptr(dst, r10_offset); // dst array offset | |
0 | 2621 BLOCK_COMMENT("choose copy loop based on element size"); |
2622 __ andl(rax_lh, Klass::_lh_log2_element_size_mask); // rax_lh -> rax_elsize | |
2623 | |
2624 // next registers should be set before the jump to corresponding stub | |
2625 const Register from = c_rarg0; // source array address | |
2626 const Register to = c_rarg1; // destination array address | |
2627 const Register count = c_rarg2; // elements count | |
2628 | |
2629 // 'from', 'to', 'count' registers should be set in such order | |
2630 // since they are the same as 'src', 'src_pos', 'dst'. | |
2631 | |
2632 __ BIND(L_copy_bytes); | |
2633 __ cmpl(rax_elsize, 0); | |
2634 __ jccb(Assembler::notEqual, L_copy_shorts); | |
304 | 2635 __ lea(from, Address(src, src_pos, Address::times_1, 0));// src_addr |
2636 __ lea(to, Address(dst, dst_pos, Address::times_1, 0));// dst_addr | |
2637 __ movl2ptr(count, r11_length); // length | |
0 | 2638 __ jump(RuntimeAddress(byte_copy_entry)); |
2639 | |
2640 __ BIND(L_copy_shorts); | |
2641 __ cmpl(rax_elsize, LogBytesPerShort); | |
2642 __ jccb(Assembler::notEqual, L_copy_ints); | |
304 | 2643 __ lea(from, Address(src, src_pos, Address::times_2, 0));// src_addr |
2644 __ lea(to, Address(dst, dst_pos, Address::times_2, 0));// dst_addr | |
2645 __ movl2ptr(count, r11_length); // length | |
0 | 2646 __ jump(RuntimeAddress(short_copy_entry)); |
2647 | |
2648 __ BIND(L_copy_ints); | |
2649 __ cmpl(rax_elsize, LogBytesPerInt); | |
2650 __ jccb(Assembler::notEqual, L_copy_longs); | |
304 | 2651 __ lea(from, Address(src, src_pos, Address::times_4, 0));// src_addr |
2652 __ lea(to, Address(dst, dst_pos, Address::times_4, 0));// dst_addr | |
2653 __ movl2ptr(count, r11_length); // length | |
0 | 2654 __ jump(RuntimeAddress(int_copy_entry)); |
2655 | |
2656 __ BIND(L_copy_longs); | |
2657 #ifdef ASSERT | |
2006
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
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|
2658 { |
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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|
2659 BLOCK_COMMENT("assert long copy {"); |
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
changeset
|
2660 Label L; |
0 | 2661 __ cmpl(rax_elsize, LogBytesPerLong); |
2662 __ jcc(Assembler::equal, L); | |
2663 __ stop("must be long copy, but elsize is wrong"); | |
2664 __ bind(L); | |
2006
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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diff
changeset
|
2665 BLOCK_COMMENT("} assert long copy done"); |
0 | 2666 } |
2667 #endif | |
304 | 2668 __ lea(from, Address(src, src_pos, Address::times_8, 0));// src_addr |
2669 __ lea(to, Address(dst, dst_pos, Address::times_8, 0));// dst_addr | |
2670 __ movl2ptr(count, r11_length); // length | |
0 | 2671 __ jump(RuntimeAddress(long_copy_entry)); |
2672 | |
6831
d8ce2825b193
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6725
diff
changeset
|
2673 // ObjArrayKlass |
0 | 2674 __ BIND(L_objArray); |
2006
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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1972
diff
changeset
|
2675 // live at this point: r10_src_klass, r11_length, src[_pos], dst[_pos] |
0 | 2676 |
2677 Label L_plain_copy, L_checkcast_copy; | |
2678 // test array classes for subtyping | |
2006
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diff
changeset
|
2679 __ load_klass(rax, dst); |
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diff
changeset
|
2680 __ cmpq(r10_src_klass, rax); // usual case is exact equality |
0 | 2681 __ jcc(Assembler::notEqual, L_checkcast_copy); |
2682 | |
2683 // Identically typed arrays can be copied without element-wise checks. | |
2684 arraycopy_range_checks(src, src_pos, dst, dst_pos, r11_length, | |
2685 r10, L_failed); | |
2686 | |
304 | 2687 __ lea(from, Address(src, src_pos, TIMES_OOP, |
0 | 2688 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); // src_addr |
304 | 2689 __ lea(to, Address(dst, dst_pos, TIMES_OOP, |
2690 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); // dst_addr | |
2691 __ movl2ptr(count, r11_length); // length | |
0 | 2692 __ BIND(L_plain_copy); |
2693 __ jump(RuntimeAddress(oop_copy_entry)); | |
2694 | |
2695 __ BIND(L_checkcast_copy); | |
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diff
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|
2696 // live at this point: r10_src_klass, r11_length, rax (dst_klass) |
0 | 2697 { |
2698 // Before looking at dst.length, make sure dst is also an objArray. | |
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diff
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|
2699 __ cmpl(Address(rax, lh_offset), objArray_lh); |
0 | 2700 __ jcc(Assembler::notEqual, L_failed); |
2701 | |
2702 // It is safe to examine both src.length and dst.length. | |
2703 arraycopy_range_checks(src, src_pos, dst, dst_pos, r11_length, | |
2704 rax, L_failed); | |
2006
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diff
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|
2705 |
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diff
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|
2706 const Register r11_dst_klass = r11; |
113
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|
2707 __ load_klass(r11_dst_klass, dst); // reload |
0 | 2708 |
2709 // Marshal the base address arguments now, freeing registers. | |
304 | 2710 __ lea(from, Address(src, src_pos, TIMES_OOP, |
0 | 2711 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
304 | 2712 __ lea(to, Address(dst, dst_pos, TIMES_OOP, |
0 | 2713 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
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diff
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|
2714 __ movl(count, length); // length (reloaded) |
0 | 2715 Register sco_temp = c_rarg3; // this register is free now |
2716 assert_different_registers(from, to, count, sco_temp, | |
2717 r11_dst_klass, r10_src_klass); | |
2718 assert_clean_int(count, sco_temp); | |
2719 | |
2720 // Generate the type check. | |
4762
069ab3f976d3
7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
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4118
diff
changeset
|
2721 const int sco_offset = in_bytes(Klass::super_check_offset_offset()); |
0 | 2722 __ movl(sco_temp, Address(r11_dst_klass, sco_offset)); |
2723 assert_clean_int(sco_temp, rax); | |
2724 generate_type_check(r10_src_klass, sco_temp, r11_dst_klass, L_plain_copy); | |
2725 | |
6831
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diff
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|
2726 // Fetch destination element klass from the ObjArrayKlass header. |
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|
2727 int ek_offset = in_bytes(ObjArrayKlass::element_klass_offset()); |
304 | 2728 __ movptr(r11_dst_klass, Address(r11_dst_klass, ek_offset)); |
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diff
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|
2729 __ movl( sco_temp, Address(r11_dst_klass, sco_offset)); |
0 | 2730 assert_clean_int(sco_temp, rax); |
2731 | |
2732 // the checkcast_copy loop needs two extra arguments: | |
2733 assert(c_rarg3 == sco_temp, "#3 already in place"); | |
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diff
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|
2734 // Set up arguments for checkcast_copy_entry. |
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|
2735 setup_arg_regs(4); |
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|
2736 __ movptr(r8, r11_dst_klass); // dst.klass.element_klass, r8 is c_rarg4 on Linux/Solaris |
0 | 2737 __ jump(RuntimeAddress(checkcast_copy_entry)); |
2738 } | |
2739 | |
2740 __ BIND(L_failed); | |
304 | 2741 __ xorptr(rax, rax); |
2742 __ notptr(rax); // return -1 | |
0 | 2743 __ leave(); // required for proper stackwalking of RuntimeStub frame |
2744 __ ret(0); | |
2745 | |
2746 return start; | |
2747 } | |
2748 | |
2749 void generate_arraycopy_stubs() { | |
2313
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|
2750 address entry; |
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|
2751 address entry_jbyte_arraycopy; |
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|
2752 address entry_jshort_arraycopy; |
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|
2753 address entry_jint_arraycopy; |
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|
2754 address entry_oop_arraycopy; |
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diff
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|
2755 address entry_jlong_arraycopy; |
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diff
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|
2756 address entry_checkcast_arraycopy; |
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|
2757 |
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|
2758 StubRoutines::_jbyte_disjoint_arraycopy = generate_disjoint_byte_copy(false, &entry, |
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|
2759 "jbyte_disjoint_arraycopy"); |
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|
2760 StubRoutines::_jbyte_arraycopy = generate_conjoint_byte_copy(false, entry, &entry_jbyte_arraycopy, |
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|
2761 "jbyte_arraycopy"); |
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|
2762 |
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|
2763 StubRoutines::_jshort_disjoint_arraycopy = generate_disjoint_short_copy(false, &entry, |
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|
2764 "jshort_disjoint_arraycopy"); |
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diff
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|
2765 StubRoutines::_jshort_arraycopy = generate_conjoint_short_copy(false, entry, &entry_jshort_arraycopy, |
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|
2766 "jshort_arraycopy"); |
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diff
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|
2767 |
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|
2768 StubRoutines::_jint_disjoint_arraycopy = generate_disjoint_int_oop_copy(false, false, &entry, |
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diff
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|
2769 "jint_disjoint_arraycopy"); |
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diff
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|
2770 StubRoutines::_jint_arraycopy = generate_conjoint_int_oop_copy(false, false, entry, |
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|
2771 &entry_jint_arraycopy, "jint_arraycopy"); |
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diff
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|
2772 |
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diff
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|
2773 StubRoutines::_jlong_disjoint_arraycopy = generate_disjoint_long_oop_copy(false, false, &entry, |
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|
2774 "jlong_disjoint_arraycopy"); |
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diff
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|
2775 StubRoutines::_jlong_arraycopy = generate_conjoint_long_oop_copy(false, false, entry, |
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diff
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|
2776 &entry_jlong_arraycopy, "jlong_arraycopy"); |
0 | 2777 |
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|
2778 |
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|
2779 if (UseCompressedOops) { |
2313
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2006
diff
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|
2780 StubRoutines::_oop_disjoint_arraycopy = generate_disjoint_int_oop_copy(false, true, &entry, |
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diff
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|
2781 "oop_disjoint_arraycopy"); |
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diff
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|
2782 StubRoutines::_oop_arraycopy = generate_conjoint_int_oop_copy(false, true, entry, |
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2006
diff
changeset
|
2783 &entry_oop_arraycopy, "oop_arraycopy"); |
2324 | 2784 StubRoutines::_oop_disjoint_arraycopy_uninit = generate_disjoint_int_oop_copy(false, true, &entry, |
2785 "oop_disjoint_arraycopy_uninit", | |
2786 /*dest_uninitialized*/true); | |
2787 StubRoutines::_oop_arraycopy_uninit = generate_conjoint_int_oop_copy(false, true, entry, | |
2788 NULL, "oop_arraycopy_uninit", | |
2789 /*dest_uninitialized*/true); | |
113
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16
diff
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|
2790 } else { |
2313
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2006
diff
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|
2791 StubRoutines::_oop_disjoint_arraycopy = generate_disjoint_long_oop_copy(false, true, &entry, |
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diff
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|
2792 "oop_disjoint_arraycopy"); |
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2006
diff
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|
2793 StubRoutines::_oop_arraycopy = generate_conjoint_long_oop_copy(false, true, entry, |
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2006
diff
changeset
|
2794 &entry_oop_arraycopy, "oop_arraycopy"); |
2324 | 2795 StubRoutines::_oop_disjoint_arraycopy_uninit = generate_disjoint_long_oop_copy(false, true, &entry, |
2796 "oop_disjoint_arraycopy_uninit", | |
2797 /*dest_uninitialized*/true); | |
2798 StubRoutines::_oop_arraycopy_uninit = generate_conjoint_long_oop_copy(false, true, entry, | |
2799 NULL, "oop_arraycopy_uninit", | |
2800 /*dest_uninitialized*/true); | |
113
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16
diff
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|
2801 } |
0 | 2802 |
2324 | 2803 StubRoutines::_checkcast_arraycopy = generate_checkcast_copy("checkcast_arraycopy", &entry_checkcast_arraycopy); |
2804 StubRoutines::_checkcast_arraycopy_uninit = generate_checkcast_copy("checkcast_arraycopy_uninit", NULL, | |
2805 /*dest_uninitialized*/true); | |
2806 | |
2313
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7020521: arraycopy stubs place prebarriers incorrectly
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2006
diff
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|
2807 StubRoutines::_unsafe_arraycopy = generate_unsafe_copy("unsafe_arraycopy", |
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7020521: arraycopy stubs place prebarriers incorrectly
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2006
diff
changeset
|
2808 entry_jbyte_arraycopy, |
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
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2006
diff
changeset
|
2809 entry_jshort_arraycopy, |
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parents:
2006
diff
changeset
|
2810 entry_jint_arraycopy, |
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2006
diff
changeset
|
2811 entry_jlong_arraycopy); |
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parents:
2006
diff
changeset
|
2812 StubRoutines::_generic_arraycopy = generate_generic_copy("generic_arraycopy", |
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7020521: arraycopy stubs place prebarriers incorrectly
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2006
diff
changeset
|
2813 entry_jbyte_arraycopy, |
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parents:
2006
diff
changeset
|
2814 entry_jshort_arraycopy, |
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2006
diff
changeset
|
2815 entry_jint_arraycopy, |
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diff
changeset
|
2816 entry_oop_arraycopy, |
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2006
diff
changeset
|
2817 entry_jlong_arraycopy, |
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diff
changeset
|
2818 entry_checkcast_arraycopy); |
0 | 2819 |
1763 | 2820 StubRoutines::_jbyte_fill = generate_fill(T_BYTE, false, "jbyte_fill"); |
2821 StubRoutines::_jshort_fill = generate_fill(T_SHORT, false, "jshort_fill"); | |
2822 StubRoutines::_jint_fill = generate_fill(T_INT, false, "jint_fill"); | |
2823 StubRoutines::_arrayof_jbyte_fill = generate_fill(T_BYTE, true, "arrayof_jbyte_fill"); | |
2824 StubRoutines::_arrayof_jshort_fill = generate_fill(T_SHORT, true, "arrayof_jshort_fill"); | |
2825 StubRoutines::_arrayof_jint_fill = generate_fill(T_INT, true, "arrayof_jint_fill"); | |
2826 | |
0 | 2827 // We don't generate specialized code for HeapWord-aligned source |
2828 // arrays, so just use the code we've already generated | |
2829 StubRoutines::_arrayof_jbyte_disjoint_arraycopy = StubRoutines::_jbyte_disjoint_arraycopy; | |
2830 StubRoutines::_arrayof_jbyte_arraycopy = StubRoutines::_jbyte_arraycopy; | |
2831 | |
2832 StubRoutines::_arrayof_jshort_disjoint_arraycopy = StubRoutines::_jshort_disjoint_arraycopy; | |
2833 StubRoutines::_arrayof_jshort_arraycopy = StubRoutines::_jshort_arraycopy; | |
2834 | |
2835 StubRoutines::_arrayof_jint_disjoint_arraycopy = StubRoutines::_jint_disjoint_arraycopy; | |
2836 StubRoutines::_arrayof_jint_arraycopy = StubRoutines::_jint_arraycopy; | |
2837 | |
2838 StubRoutines::_arrayof_jlong_disjoint_arraycopy = StubRoutines::_jlong_disjoint_arraycopy; | |
2839 StubRoutines::_arrayof_jlong_arraycopy = StubRoutines::_jlong_arraycopy; | |
2840 | |
2841 StubRoutines::_arrayof_oop_disjoint_arraycopy = StubRoutines::_oop_disjoint_arraycopy; | |
2842 StubRoutines::_arrayof_oop_arraycopy = StubRoutines::_oop_arraycopy; | |
2324 | 2843 |
2844 StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit = StubRoutines::_oop_disjoint_arraycopy_uninit; | |
2845 StubRoutines::_arrayof_oop_arraycopy_uninit = StubRoutines::_oop_arraycopy_uninit; | |
0 | 2846 } |
2847 | |
1174
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diff
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|
2848 void generate_math_stubs() { |
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diff
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|
2849 { |
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|
2850 StubCodeMark mark(this, "StubRoutines", "log"); |
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parents:
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|
2851 StubRoutines::_intrinsic_log = (double (*)(double)) __ pc(); |
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|
2852 |
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|
2853 __ subq(rsp, 8); |
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|
2854 __ movdbl(Address(rsp, 0), xmm0); |
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parents:
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diff
changeset
|
2855 __ fld_d(Address(rsp, 0)); |
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parents:
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diff
changeset
|
2856 __ flog(); |
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diff
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|
2857 __ fstp_d(Address(rsp, 0)); |
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parents:
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diff
changeset
|
2858 __ movdbl(xmm0, Address(rsp, 0)); |
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parents:
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diff
changeset
|
2859 __ addq(rsp, 8); |
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diff
changeset
|
2860 __ ret(0); |
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|
2861 } |
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|
2862 { |
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|
2863 StubCodeMark mark(this, "StubRoutines", "log10"); |
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parents:
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diff
changeset
|
2864 StubRoutines::_intrinsic_log10 = (double (*)(double)) __ pc(); |
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parents:
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diff
changeset
|
2865 |
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parents:
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diff
changeset
|
2866 __ subq(rsp, 8); |
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parents:
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diff
changeset
|
2867 __ movdbl(Address(rsp, 0), xmm0); |
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parents:
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diff
changeset
|
2868 __ fld_d(Address(rsp, 0)); |
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diff
changeset
|
2869 __ flog10(); |
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diff
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|
2870 __ fstp_d(Address(rsp, 0)); |
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diff
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|
2871 __ movdbl(xmm0, Address(rsp, 0)); |
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diff
changeset
|
2872 __ addq(rsp, 8); |
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diff
changeset
|
2873 __ ret(0); |
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|
2874 } |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2875 { |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2876 StubCodeMark mark(this, "StubRoutines", "sin"); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2877 StubRoutines::_intrinsic_sin = (double (*)(double)) __ pc(); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2878 |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2879 __ subq(rsp, 8); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2880 __ movdbl(Address(rsp, 0), xmm0); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2881 __ fld_d(Address(rsp, 0)); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2882 __ trigfunc('s'); |
ddb7834449d0
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never
parents:
1108
diff
changeset
|
2883 __ fstp_d(Address(rsp, 0)); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2884 __ movdbl(xmm0, Address(rsp, 0)); |
ddb7834449d0
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never
parents:
1108
diff
changeset
|
2885 __ addq(rsp, 8); |
ddb7834449d0
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parents:
1108
diff
changeset
|
2886 __ ret(0); |
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parents:
1108
diff
changeset
|
2887 } |
ddb7834449d0
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never
parents:
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diff
changeset
|
2888 { |
ddb7834449d0
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never
parents:
1108
diff
changeset
|
2889 StubCodeMark mark(this, "StubRoutines", "cos"); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
1108
diff
changeset
|
2890 StubRoutines::_intrinsic_cos = (double (*)(double)) __ pc(); |
ddb7834449d0
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never
parents:
1108
diff
changeset
|
2891 |
ddb7834449d0
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parents:
1108
diff
changeset
|
2892 __ subq(rsp, 8); |
ddb7834449d0
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never
parents:
1108
diff
changeset
|
2893 __ movdbl(Address(rsp, 0), xmm0); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2894 __ fld_d(Address(rsp, 0)); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2895 __ trigfunc('c'); |
ddb7834449d0
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never
parents:
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diff
changeset
|
2896 __ fstp_d(Address(rsp, 0)); |
ddb7834449d0
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never
parents:
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diff
changeset
|
2897 __ movdbl(xmm0, Address(rsp, 0)); |
ddb7834449d0
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parents:
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diff
changeset
|
2898 __ addq(rsp, 8); |
ddb7834449d0
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parents:
1108
diff
changeset
|
2899 __ ret(0); |
ddb7834449d0
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never
parents:
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diff
changeset
|
2900 } |
ddb7834449d0
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never
parents:
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diff
changeset
|
2901 { |
ddb7834449d0
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never
parents:
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diff
changeset
|
2902 StubCodeMark mark(this, "StubRoutines", "tan"); |
ddb7834449d0
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never
parents:
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diff
changeset
|
2903 StubRoutines::_intrinsic_tan = (double (*)(double)) __ pc(); |
ddb7834449d0
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parents:
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diff
changeset
|
2904 |
ddb7834449d0
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parents:
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diff
changeset
|
2905 __ subq(rsp, 8); |
ddb7834449d0
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never
parents:
1108
diff
changeset
|
2906 __ movdbl(Address(rsp, 0), xmm0); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2907 __ fld_d(Address(rsp, 0)); |
ddb7834449d0
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never
parents:
1108
diff
changeset
|
2908 __ trigfunc('t'); |
ddb7834449d0
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never
parents:
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diff
changeset
|
2909 __ fstp_d(Address(rsp, 0)); |
ddb7834449d0
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never
parents:
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diff
changeset
|
2910 __ movdbl(xmm0, Address(rsp, 0)); |
ddb7834449d0
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never
parents:
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diff
changeset
|
2911 __ addq(rsp, 8); |
ddb7834449d0
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never
parents:
1108
diff
changeset
|
2912 __ ret(0); |
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never
parents:
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diff
changeset
|
2913 } |
6084
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2914 { |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2915 StubCodeMark mark(this, "StubRoutines", "exp"); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2916 StubRoutines::_intrinsic_exp = (double (*)(double)) __ pc(); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2917 |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2918 __ subq(rsp, 8); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2919 __ movdbl(Address(rsp, 0), xmm0); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2920 __ fld_d(Address(rsp, 0)); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2921 __ exp_with_fallback(0); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2922 __ fstp_d(Address(rsp, 0)); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2923 __ movdbl(xmm0, Address(rsp, 0)); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2924 __ addq(rsp, 8); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2925 __ ret(0); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2926 } |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2927 { |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2928 StubCodeMark mark(this, "StubRoutines", "pow"); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2929 StubRoutines::_intrinsic_pow = (double (*)(double,double)) __ pc(); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2930 |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2931 __ subq(rsp, 8); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2932 __ movdbl(Address(rsp, 0), xmm1); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
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parents:
5903
diff
changeset
|
2933 __ fld_d(Address(rsp, 0)); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2934 __ movdbl(Address(rsp, 0), xmm0); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
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parents:
5903
diff
changeset
|
2935 __ fld_d(Address(rsp, 0)); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2936 __ pow_with_fallback(0); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2937 __ fstp_d(Address(rsp, 0)); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
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parents:
5903
diff
changeset
|
2938 __ movdbl(xmm0, Address(rsp, 0)); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2939 __ addq(rsp, 8); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2940 __ ret(0); |
6759698e3140
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roland
parents:
5903
diff
changeset
|
2941 } |
1174
ddb7834449d0
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parents:
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diff
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|
2942 } |
ddb7834449d0
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1108
diff
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|
2943 |
6894 | 2944 // AES intrinsic stubs |
2945 enum {AESBlockSize = 16}; | |
2946 | |
2947 address generate_key_shuffle_mask() { | |
2948 __ align(16); | |
2949 StubCodeMark mark(this, "StubRoutines", "key_shuffle_mask"); | |
2950 address start = __ pc(); | |
2951 __ emit_data64( 0x0405060700010203, relocInfo::none ); | |
2952 __ emit_data64( 0x0c0d0e0f08090a0b, relocInfo::none ); | |
2953 return start; | |
2954 } | |
2955 | |
2956 // Utility routine for loading a 128-bit key word in little endian format | |
2957 // can optionally specify that the shuffle mask is already in an xmmregister | |
2958 void load_key(XMMRegister xmmdst, Register key, int offset, XMMRegister xmm_shuf_mask=NULL) { | |
2959 __ movdqu(xmmdst, Address(key, offset)); | |
2960 if (xmm_shuf_mask != NULL) { | |
2961 __ pshufb(xmmdst, xmm_shuf_mask); | |
2962 } else { | |
2963 __ pshufb(xmmdst, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
2964 } | |
2965 } | |
2966 | |
2967 // aesenc using specified key+offset | |
2968 // can optionally specify that the shuffle mask is already in an xmmregister | |
2969 void aes_enc_key(XMMRegister xmmdst, XMMRegister xmmtmp, Register key, int offset, XMMRegister xmm_shuf_mask=NULL) { | |
2970 load_key(xmmtmp, key, offset, xmm_shuf_mask); | |
2971 __ aesenc(xmmdst, xmmtmp); | |
2972 } | |
2973 | |
2974 // aesdec using specified key+offset | |
2975 // can optionally specify that the shuffle mask is already in an xmmregister | |
2976 void aes_dec_key(XMMRegister xmmdst, XMMRegister xmmtmp, Register key, int offset, XMMRegister xmm_shuf_mask=NULL) { | |
2977 load_key(xmmtmp, key, offset, xmm_shuf_mask); | |
2978 __ aesdec(xmmdst, xmmtmp); | |
2979 } | |
2980 | |
2981 | |
2982 // Arguments: | |
2983 // | |
2984 // Inputs: | |
2985 // c_rarg0 - source byte array address | |
2986 // c_rarg1 - destination byte array address | |
2987 // c_rarg2 - K (key) in little endian int array | |
2988 // | |
2989 address generate_aescrypt_encryptBlock() { | |
2990 assert(UseAES && (UseAVX > 0), "need AES instructions and misaligned SSE support"); | |
2991 __ align(CodeEntryAlignment); | |
2992 StubCodeMark mark(this, "StubRoutines", "aescrypt_encryptBlock"); | |
2993 Label L_doLast; | |
2994 address start = __ pc(); | |
2995 | |
2996 const Register from = c_rarg0; // source array address | |
2997 const Register to = c_rarg1; // destination array address | |
2998 const Register key = c_rarg2; // key array address | |
2999 const Register keylen = rax; | |
3000 | |
3001 const XMMRegister xmm_result = xmm0; | |
3002 const XMMRegister xmm_temp = xmm1; | |
3003 const XMMRegister xmm_key_shuf_mask = xmm2; | |
3004 | |
3005 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
3006 | |
3007 __ movl(keylen, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT))); | |
3008 // keylen = # of 32-bit words, convert to 128-bit words | |
3009 __ shrl(keylen, 2); | |
3010 __ subl(keylen, 11); // every key has at least 11 128-bit words, some have more | |
3011 | |
3012 __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
3013 __ movdqu(xmm_result, Address(from, 0)); // get 16 bytes of input | |
3014 | |
3015 // For encryption, the java expanded key ordering is just what we need | |
3016 // we don't know if the key is aligned, hence not using load-execute form | |
3017 | |
3018 load_key(xmm_temp, key, 0x00, xmm_key_shuf_mask); | |
3019 __ pxor(xmm_result, xmm_temp); | |
3020 for (int offset = 0x10; offset <= 0x90; offset += 0x10) { | |
3021 aes_enc_key(xmm_result, xmm_temp, key, offset, xmm_key_shuf_mask); | |
3022 } | |
3023 load_key (xmm_temp, key, 0xa0, xmm_key_shuf_mask); | |
3024 __ cmpl(keylen, 0); | |
3025 __ jcc(Assembler::equal, L_doLast); | |
3026 __ aesenc(xmm_result, xmm_temp); // only in 192 and 256 bit keys | |
3027 aes_enc_key(xmm_result, xmm_temp, key, 0xb0, xmm_key_shuf_mask); | |
3028 load_key(xmm_temp, key, 0xc0, xmm_key_shuf_mask); | |
3029 __ subl(keylen, 2); | |
3030 __ jcc(Assembler::equal, L_doLast); | |
3031 __ aesenc(xmm_result, xmm_temp); // only in 256 bit keys | |
3032 aes_enc_key(xmm_result, xmm_temp, key, 0xd0, xmm_key_shuf_mask); | |
3033 load_key(xmm_temp, key, 0xe0, xmm_key_shuf_mask); | |
3034 | |
3035 __ BIND(L_doLast); | |
3036 __ aesenclast(xmm_result, xmm_temp); | |
3037 __ movdqu(Address(to, 0), xmm_result); // store the result | |
3038 __ xorptr(rax, rax); // return 0 | |
3039 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
3040 __ ret(0); | |
3041 | |
3042 return start; | |
3043 } | |
3044 | |
3045 | |
3046 // Arguments: | |
3047 // | |
3048 // Inputs: | |
3049 // c_rarg0 - source byte array address | |
3050 // c_rarg1 - destination byte array address | |
3051 // c_rarg2 - K (key) in little endian int array | |
3052 // | |
3053 address generate_aescrypt_decryptBlock() { | |
3054 assert(UseAES && (UseAVX > 0), "need AES instructions and misaligned SSE support"); | |
3055 __ align(CodeEntryAlignment); | |
3056 StubCodeMark mark(this, "StubRoutines", "aescrypt_decryptBlock"); | |
3057 Label L_doLast; | |
3058 address start = __ pc(); | |
3059 | |
3060 const Register from = c_rarg0; // source array address | |
3061 const Register to = c_rarg1; // destination array address | |
3062 const Register key = c_rarg2; // key array address | |
3063 const Register keylen = rax; | |
3064 | |
3065 const XMMRegister xmm_result = xmm0; | |
3066 const XMMRegister xmm_temp = xmm1; | |
3067 const XMMRegister xmm_key_shuf_mask = xmm2; | |
3068 | |
3069 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
3070 | |
3071 __ movl(keylen, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT))); | |
3072 // keylen = # of 32-bit words, convert to 128-bit words | |
3073 __ shrl(keylen, 2); | |
3074 __ subl(keylen, 11); // every key has at least 11 128-bit words, some have more | |
3075 | |
3076 __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
3077 __ movdqu(xmm_result, Address(from, 0)); | |
3078 | |
3079 // for decryption java expanded key ordering is rotated one position from what we want | |
3080 // so we start from 0x10 here and hit 0x00 last | |
3081 // we don't know if the key is aligned, hence not using load-execute form | |
3082 load_key(xmm_temp, key, 0x10, xmm_key_shuf_mask); | |
3083 __ pxor (xmm_result, xmm_temp); | |
3084 for (int offset = 0x20; offset <= 0xa0; offset += 0x10) { | |
3085 aes_dec_key(xmm_result, xmm_temp, key, offset, xmm_key_shuf_mask); | |
3086 } | |
3087 __ cmpl(keylen, 0); | |
3088 __ jcc(Assembler::equal, L_doLast); | |
3089 // only in 192 and 256 bit keys | |
3090 aes_dec_key(xmm_result, xmm_temp, key, 0xb0, xmm_key_shuf_mask); | |
3091 aes_dec_key(xmm_result, xmm_temp, key, 0xc0, xmm_key_shuf_mask); | |
3092 __ subl(keylen, 2); | |
3093 __ jcc(Assembler::equal, L_doLast); | |
3094 // only in 256 bit keys | |
3095 aes_dec_key(xmm_result, xmm_temp, key, 0xd0, xmm_key_shuf_mask); | |
3096 aes_dec_key(xmm_result, xmm_temp, key, 0xe0, xmm_key_shuf_mask); | |
3097 | |
3098 __ BIND(L_doLast); | |
3099 // for decryption the aesdeclast operation is always on key+0x00 | |
3100 load_key(xmm_temp, key, 0x00, xmm_key_shuf_mask); | |
3101 __ aesdeclast(xmm_result, xmm_temp); | |
3102 | |
3103 __ movdqu(Address(to, 0), xmm_result); // store the result | |
3104 | |
3105 __ xorptr(rax, rax); // return 0 | |
3106 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
3107 __ ret(0); | |
3108 | |
3109 return start; | |
3110 } | |
3111 | |
3112 | |
3113 // Arguments: | |
3114 // | |
3115 // Inputs: | |
3116 // c_rarg0 - source byte array address | |
3117 // c_rarg1 - destination byte array address | |
3118 // c_rarg2 - K (key) in little endian int array | |
3119 // c_rarg3 - r vector byte array address | |
3120 // c_rarg4 - input length | |
3121 // | |
3122 address generate_cipherBlockChaining_encryptAESCrypt() { | |
3123 assert(UseAES && (UseAVX > 0), "need AES instructions and misaligned SSE support"); | |
3124 __ align(CodeEntryAlignment); | |
3125 StubCodeMark mark(this, "StubRoutines", "cipherBlockChaining_encryptAESCrypt"); | |
3126 address start = __ pc(); | |
3127 | |
3128 Label L_exit, L_key_192_256, L_key_256, L_loopTop_128, L_loopTop_192, L_loopTop_256; | |
3129 const Register from = c_rarg0; // source array address | |
3130 const Register to = c_rarg1; // destination array address | |
3131 const Register key = c_rarg2; // key array address | |
3132 const Register rvec = c_rarg3; // r byte array initialized from initvector array address | |
3133 // and left with the results of the last encryption block | |
3134 #ifndef _WIN64 | |
3135 const Register len_reg = c_rarg4; // src len (must be multiple of blocksize 16) | |
3136 #else | |
3137 const Address len_mem(rsp, 6 * wordSize); // length is on stack on Win64 | |
3138 const Register len_reg = r10; // pick the first volatile windows register | |
3139 #endif | |
3140 const Register pos = rax; | |
3141 | |
3142 // xmm register assignments for the loops below | |
3143 const XMMRegister xmm_result = xmm0; | |
3144 const XMMRegister xmm_temp = xmm1; | |
3145 // keys 0-10 preloaded into xmm2-xmm12 | |
3146 const int XMM_REG_NUM_KEY_FIRST = 2; | |
3147 const int XMM_REG_NUM_KEY_LAST = 12; | |
3148 const XMMRegister xmm_key0 = as_XMMRegister(XMM_REG_NUM_KEY_FIRST); | |
3149 const XMMRegister xmm_key10 = as_XMMRegister(XMM_REG_NUM_KEY_LAST); | |
3150 | |
3151 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
3152 | |
3153 #ifdef _WIN64 | |
3154 // on win64, fill len_reg from stack position | |
3155 __ movl(len_reg, len_mem); | |
3156 // save the xmm registers which must be preserved 6-12 | |
3157 __ subptr(rsp, -rsp_after_call_off * wordSize); | |
3158 for (int i = 6; i <= XMM_REG_NUM_KEY_LAST; i++) { | |
3159 __ movdqu(xmm_save(i), as_XMMRegister(i)); | |
3160 } | |
3161 #endif | |
3162 | |
3163 const XMMRegister xmm_key_shuf_mask = xmm_temp; // used temporarily to swap key bytes up front | |
3164 __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
3165 // load up xmm regs 2 thru 12 with key 0x00 - 0xa0 | |
3166 for (int rnum = XMM_REG_NUM_KEY_FIRST, offset = 0x00; rnum <= XMM_REG_NUM_KEY_LAST; rnum++) { | |
3167 load_key(as_XMMRegister(rnum), key, offset, xmm_key_shuf_mask); | |
3168 offset += 0x10; | |
3169 } | |
3170 | |
3171 __ movdqu(xmm_result, Address(rvec, 0x00)); // initialize xmm_result with r vec | |
3172 | |
3173 // now split to different paths depending on the keylen (len in ints of AESCrypt.KLE array (52=192, or 60=256)) | |
3174 __ movl(rax, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT))); | |
3175 __ cmpl(rax, 44); | |
3176 __ jcc(Assembler::notEqual, L_key_192_256); | |
3177 | |
3178 // 128 bit code follows here | |
3179 __ movptr(pos, 0); | |
3180 __ align(OptoLoopAlignment); | |
3181 __ BIND(L_loopTop_128); | |
3182 __ movdqu(xmm_temp, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of input | |
3183 __ pxor (xmm_result, xmm_temp); // xor with the current r vector | |
3184 | |
3185 __ pxor (xmm_result, xmm_key0); // do the aes rounds | |
3186 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST - 1; rnum++) { | |
3187 __ aesenc(xmm_result, as_XMMRegister(rnum)); | |
3188 } | |
3189 __ aesenclast(xmm_result, xmm_key10); | |
3190 | |
3191 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output | |
3192 // no need to store r to memory until we exit | |
3193 __ addptr(pos, AESBlockSize); | |
3194 __ subptr(len_reg, AESBlockSize); | |
3195 __ jcc(Assembler::notEqual, L_loopTop_128); | |
3196 | |
3197 __ BIND(L_exit); | |
3198 __ movdqu(Address(rvec, 0), xmm_result); // final value of r stored in rvec of CipherBlockChaining object | |
3199 | |
3200 #ifdef _WIN64 | |
3201 // restore xmm regs belonging to calling function | |
3202 for (int i = 6; i <= XMM_REG_NUM_KEY_LAST; i++) { | |
3203 __ movdqu(as_XMMRegister(i), xmm_save(i)); | |
3204 } | |
3205 #endif | |
3206 __ movl(rax, 0); // return 0 (why?) | |
3207 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
3208 __ ret(0); | |
3209 | |
3210 __ BIND(L_key_192_256); | |
3211 // here rax = len in ints of AESCrypt.KLE array (52=192, or 60=256) | |
3212 __ cmpl(rax, 52); | |
3213 __ jcc(Assembler::notEqual, L_key_256); | |
3214 | |
3215 // 192-bit code follows here (could be changed to use more xmm registers) | |
3216 __ movptr(pos, 0); | |
3217 __ align(OptoLoopAlignment); | |
3218 __ BIND(L_loopTop_192); | |
3219 __ movdqu(xmm_temp, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of input | |
3220 __ pxor (xmm_result, xmm_temp); // xor with the current r vector | |
3221 | |
3222 __ pxor (xmm_result, xmm_key0); // do the aes rounds | |
3223 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST; rnum++) { | |
3224 __ aesenc(xmm_result, as_XMMRegister(rnum)); | |
3225 } | |
3226 aes_enc_key(xmm_result, xmm_temp, key, 0xb0); | |
3227 load_key(xmm_temp, key, 0xc0); | |
3228 __ aesenclast(xmm_result, xmm_temp); | |
3229 | |
3230 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output | |
3231 // no need to store r to memory until we exit | |
3232 __ addptr(pos, AESBlockSize); | |
3233 __ subptr(len_reg, AESBlockSize); | |
3234 __ jcc(Assembler::notEqual, L_loopTop_192); | |
3235 __ jmp(L_exit); | |
3236 | |
3237 __ BIND(L_key_256); | |
3238 // 256-bit code follows here (could be changed to use more xmm registers) | |
3239 __ movptr(pos, 0); | |
3240 __ align(OptoLoopAlignment); | |
3241 __ BIND(L_loopTop_256); | |
3242 __ movdqu(xmm_temp, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of input | |
3243 __ pxor (xmm_result, xmm_temp); // xor with the current r vector | |
3244 | |
3245 __ pxor (xmm_result, xmm_key0); // do the aes rounds | |
3246 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST; rnum++) { | |
3247 __ aesenc(xmm_result, as_XMMRegister(rnum)); | |
3248 } | |
3249 aes_enc_key(xmm_result, xmm_temp, key, 0xb0); | |
3250 aes_enc_key(xmm_result, xmm_temp, key, 0xc0); | |
3251 aes_enc_key(xmm_result, xmm_temp, key, 0xd0); | |
3252 load_key(xmm_temp, key, 0xe0); | |
3253 __ aesenclast(xmm_result, xmm_temp); | |
3254 | |
3255 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output | |
3256 // no need to store r to memory until we exit | |
3257 __ addptr(pos, AESBlockSize); | |
3258 __ subptr(len_reg, AESBlockSize); | |
3259 __ jcc(Assembler::notEqual, L_loopTop_256); | |
3260 __ jmp(L_exit); | |
3261 | |
3262 return start; | |
3263 } | |
3264 | |
3265 | |
3266 | |
3267 // This is a version of CBC/AES Decrypt which does 4 blocks in a loop at a time | |
3268 // to hide instruction latency | |
3269 // | |
3270 // Arguments: | |
3271 // | |
3272 // Inputs: | |
3273 // c_rarg0 - source byte array address | |
3274 // c_rarg1 - destination byte array address | |
3275 // c_rarg2 - K (key) in little endian int array | |
3276 // c_rarg3 - r vector byte array address | |
3277 // c_rarg4 - input length | |
3278 // | |
3279 | |
3280 address generate_cipherBlockChaining_decryptAESCrypt_Parallel() { | |
3281 assert(UseAES && (UseAVX > 0), "need AES instructions and misaligned SSE support"); | |
3282 __ align(CodeEntryAlignment); | |
3283 StubCodeMark mark(this, "StubRoutines", "cipherBlockChaining_decryptAESCrypt"); | |
3284 address start = __ pc(); | |
3285 | |
3286 Label L_exit, L_key_192_256, L_key_256; | |
3287 Label L_singleBlock_loopTop_128, L_multiBlock_loopTop_128; | |
3288 Label L_singleBlock_loopTop_192, L_singleBlock_loopTop_256; | |
3289 const Register from = c_rarg0; // source array address | |
3290 const Register to = c_rarg1; // destination array address | |
3291 const Register key = c_rarg2; // key array address | |
3292 const Register rvec = c_rarg3; // r byte array initialized from initvector array address | |
3293 // and left with the results of the last encryption block | |
3294 #ifndef _WIN64 | |
3295 const Register len_reg = c_rarg4; // src len (must be multiple of blocksize 16) | |
3296 #else | |
3297 const Address len_mem(rsp, 6 * wordSize); // length is on stack on Win64 | |
3298 const Register len_reg = r10; // pick the first volatile windows register | |
3299 #endif | |
3300 const Register pos = rax; | |
3301 | |
3302 // xmm register assignments for the loops below | |
3303 const XMMRegister xmm_result = xmm0; | |
3304 // keys 0-10 preloaded into xmm2-xmm12 | |
3305 const int XMM_REG_NUM_KEY_FIRST = 5; | |
3306 const int XMM_REG_NUM_KEY_LAST = 15; | |
3307 const XMMRegister xmm_key_first = as_XMMRegister(XMM_REG_NUM_KEY_FIRST); | |
3308 const XMMRegister xmm_key_last = as_XMMRegister(XMM_REG_NUM_KEY_LAST); | |
3309 | |
3310 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
3311 | |
3312 #ifdef _WIN64 | |
3313 // on win64, fill len_reg from stack position | |
3314 __ movl(len_reg, len_mem); | |
3315 // save the xmm registers which must be preserved 6-15 | |
3316 __ subptr(rsp, -rsp_after_call_off * wordSize); | |
3317 for (int i = 6; i <= XMM_REG_NUM_KEY_LAST; i++) { | |
3318 __ movdqu(xmm_save(i), as_XMMRegister(i)); | |
3319 } | |
3320 #endif | |
3321 // the java expanded key ordering is rotated one position from what we want | |
3322 // so we start from 0x10 here and hit 0x00 last | |
3323 const XMMRegister xmm_key_shuf_mask = xmm1; // used temporarily to swap key bytes up front | |
3324 __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
3325 // load up xmm regs 5 thru 15 with key 0x10 - 0xa0 - 0x00 | |
3326 for (int rnum = XMM_REG_NUM_KEY_FIRST, offset = 0x10; rnum <= XMM_REG_NUM_KEY_LAST; rnum++) { | |
3327 if (rnum == XMM_REG_NUM_KEY_LAST) offset = 0x00; | |
3328 load_key(as_XMMRegister(rnum), key, offset, xmm_key_shuf_mask); | |
3329 offset += 0x10; | |
3330 } | |
3331 | |
3332 const XMMRegister xmm_prev_block_cipher = xmm1; // holds cipher of previous block | |
3333 // registers holding the four results in the parallelized loop | |
3334 const XMMRegister xmm_result0 = xmm0; | |
3335 const XMMRegister xmm_result1 = xmm2; | |
3336 const XMMRegister xmm_result2 = xmm3; | |
3337 const XMMRegister xmm_result3 = xmm4; | |
3338 | |
3339 __ movdqu(xmm_prev_block_cipher, Address(rvec, 0x00)); // initialize with initial rvec | |
3340 | |
3341 // now split to different paths depending on the keylen (len in ints of AESCrypt.KLE array (52=192, or 60=256)) | |
3342 __ movl(rax, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT))); | |
3343 __ cmpl(rax, 44); | |
3344 __ jcc(Assembler::notEqual, L_key_192_256); | |
3345 | |
3346 | |
3347 // 128-bit code follows here, parallelized | |
3348 __ movptr(pos, 0); | |
3349 __ align(OptoLoopAlignment); | |
3350 __ BIND(L_multiBlock_loopTop_128); | |
3351 __ cmpptr(len_reg, 4*AESBlockSize); // see if at least 4 blocks left | |
3352 __ jcc(Assembler::less, L_singleBlock_loopTop_128); | |
3353 | |
3354 __ movdqu(xmm_result0, Address(from, pos, Address::times_1, 0*AESBlockSize)); // get next 4 blocks into xmmresult registers | |
3355 __ movdqu(xmm_result1, Address(from, pos, Address::times_1, 1*AESBlockSize)); | |
3356 __ movdqu(xmm_result2, Address(from, pos, Address::times_1, 2*AESBlockSize)); | |
3357 __ movdqu(xmm_result3, Address(from, pos, Address::times_1, 3*AESBlockSize)); | |
3358 | |
3359 #define DoFour(opc, src_reg) \ | |
3360 __ opc(xmm_result0, src_reg); \ | |
3361 __ opc(xmm_result1, src_reg); \ | |
3362 __ opc(xmm_result2, src_reg); \ | |
3363 __ opc(xmm_result3, src_reg); | |
3364 | |
3365 DoFour(pxor, xmm_key_first); | |
3366 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST - 1; rnum++) { | |
3367 DoFour(aesdec, as_XMMRegister(rnum)); | |
3368 } | |
3369 DoFour(aesdeclast, xmm_key_last); | |
3370 // for each result, xor with the r vector of previous cipher block | |
3371 __ pxor(xmm_result0, xmm_prev_block_cipher); | |
3372 __ movdqu(xmm_prev_block_cipher, Address(from, pos, Address::times_1, 0*AESBlockSize)); | |
3373 __ pxor(xmm_result1, xmm_prev_block_cipher); | |
3374 __ movdqu(xmm_prev_block_cipher, Address(from, pos, Address::times_1, 1*AESBlockSize)); | |
3375 __ pxor(xmm_result2, xmm_prev_block_cipher); | |
3376 __ movdqu(xmm_prev_block_cipher, Address(from, pos, Address::times_1, 2*AESBlockSize)); | |
3377 __ pxor(xmm_result3, xmm_prev_block_cipher); | |
3378 __ movdqu(xmm_prev_block_cipher, Address(from, pos, Address::times_1, 3*AESBlockSize)); // this will carry over to next set of blocks | |
3379 | |
3380 __ movdqu(Address(to, pos, Address::times_1, 0*AESBlockSize), xmm_result0); // store 4 results into the next 64 bytes of output | |
3381 __ movdqu(Address(to, pos, Address::times_1, 1*AESBlockSize), xmm_result1); | |
3382 __ movdqu(Address(to, pos, Address::times_1, 2*AESBlockSize), xmm_result2); | |
3383 __ movdqu(Address(to, pos, Address::times_1, 3*AESBlockSize), xmm_result3); | |
3384 | |
3385 __ addptr(pos, 4*AESBlockSize); | |
3386 __ subptr(len_reg, 4*AESBlockSize); | |
3387 __ jmp(L_multiBlock_loopTop_128); | |
3388 | |
3389 // registers used in the non-parallelized loops | |
3390 const XMMRegister xmm_prev_block_cipher_save = xmm2; | |
3391 const XMMRegister xmm_temp = xmm3; | |
3392 | |
3393 __ align(OptoLoopAlignment); | |
3394 __ BIND(L_singleBlock_loopTop_128); | |
3395 __ cmpptr(len_reg, 0); // any blocks left?? | |
3396 __ jcc(Assembler::equal, L_exit); | |
3397 __ movdqu(xmm_result, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of cipher input | |
3398 __ movdqa(xmm_prev_block_cipher_save, xmm_result); // save for next r vector | |
3399 __ pxor (xmm_result, xmm_key_first); // do the aes dec rounds | |
3400 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST - 1; rnum++) { | |
3401 __ aesdec(xmm_result, as_XMMRegister(rnum)); | |
3402 } | |
3403 __ aesdeclast(xmm_result, xmm_key_last); | |
3404 __ pxor (xmm_result, xmm_prev_block_cipher); // xor with the current r vector | |
3405 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output | |
3406 // no need to store r to memory until we exit | |
3407 __ movdqa(xmm_prev_block_cipher, xmm_prev_block_cipher_save); // set up next r vector with cipher input from this block | |
3408 | |
3409 __ addptr(pos, AESBlockSize); | |
3410 __ subptr(len_reg, AESBlockSize); | |
3411 __ jmp(L_singleBlock_loopTop_128); | |
3412 | |
3413 | |
3414 __ BIND(L_exit); | |
3415 __ movdqu(Address(rvec, 0), xmm_prev_block_cipher); // final value of r stored in rvec of CipherBlockChaining object | |
3416 #ifdef _WIN64 | |
3417 // restore regs belonging to calling function | |
3418 for (int i = 6; i <= XMM_REG_NUM_KEY_LAST; i++) { | |
3419 __ movdqu(as_XMMRegister(i), xmm_save(i)); | |
3420 } | |
3421 #endif | |
3422 __ movl(rax, 0); // return 0 (why?) | |
3423 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
3424 __ ret(0); | |
3425 | |
3426 | |
3427 __ BIND(L_key_192_256); | |
3428 // here rax = len in ints of AESCrypt.KLE array (52=192, or 60=256) | |
3429 __ cmpl(rax, 52); | |
3430 __ jcc(Assembler::notEqual, L_key_256); | |
3431 | |
3432 // 192-bit code follows here (could be optimized to use parallelism) | |
3433 __ movptr(pos, 0); | |
3434 __ align(OptoLoopAlignment); | |
3435 __ BIND(L_singleBlock_loopTop_192); | |
3436 __ movdqu(xmm_result, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of cipher input | |
3437 __ movdqa(xmm_prev_block_cipher_save, xmm_result); // save for next r vector | |
3438 __ pxor (xmm_result, xmm_key_first); // do the aes dec rounds | |
3439 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST - 1; rnum++) { | |
3440 __ aesdec(xmm_result, as_XMMRegister(rnum)); | |
3441 } | |
3442 aes_dec_key(xmm_result, xmm_temp, key, 0xb0); // 192-bit key goes up to c0 | |
3443 aes_dec_key(xmm_result, xmm_temp, key, 0xc0); | |
3444 __ aesdeclast(xmm_result, xmm_key_last); // xmm15 always came from key+0 | |
3445 __ pxor (xmm_result, xmm_prev_block_cipher); // xor with the current r vector | |
3446 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output | |
3447 // no need to store r to memory until we exit | |
3448 __ movdqa(xmm_prev_block_cipher, xmm_prev_block_cipher_save); // set up next r vector with cipher input from this block | |
3449 | |
3450 __ addptr(pos, AESBlockSize); | |
3451 __ subptr(len_reg, AESBlockSize); | |
3452 __ jcc(Assembler::notEqual,L_singleBlock_loopTop_192); | |
3453 __ jmp(L_exit); | |
3454 | |
3455 __ BIND(L_key_256); | |
3456 // 256-bit code follows here (could be optimized to use parallelism) | |
3457 __ movptr(pos, 0); | |
3458 __ align(OptoLoopAlignment); | |
3459 __ BIND(L_singleBlock_loopTop_256); | |
3460 __ movdqu(xmm_result, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of cipher input | |
3461 __ movdqa(xmm_prev_block_cipher_save, xmm_result); // save for next r vector | |
3462 __ pxor (xmm_result, xmm_key_first); // do the aes dec rounds | |
3463 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST - 1; rnum++) { | |
3464 __ aesdec(xmm_result, as_XMMRegister(rnum)); | |
3465 } | |
3466 aes_dec_key(xmm_result, xmm_temp, key, 0xb0); // 256-bit key goes up to e0 | |
3467 aes_dec_key(xmm_result, xmm_temp, key, 0xc0); | |
3468 aes_dec_key(xmm_result, xmm_temp, key, 0xd0); | |
3469 aes_dec_key(xmm_result, xmm_temp, key, 0xe0); | |
3470 __ aesdeclast(xmm_result, xmm_key_last); // xmm15 came from key+0 | |
3471 __ pxor (xmm_result, xmm_prev_block_cipher); // xor with the current r vector | |
3472 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output | |
3473 // no need to store r to memory until we exit | |
3474 __ movdqa(xmm_prev_block_cipher, xmm_prev_block_cipher_save); // set up next r vector with cipher input from this block | |
3475 | |
3476 __ addptr(pos, AESBlockSize); | |
3477 __ subptr(len_reg, AESBlockSize); | |
3478 __ jcc(Assembler::notEqual,L_singleBlock_loopTop_256); | |
3479 __ jmp(L_exit); | |
3480 | |
3481 return start; | |
3482 } | |
3483 | |
3484 | |
3485 | |
0 | 3486 #undef __ |
3487 #define __ masm-> | |
3488 | |
3489 // Continuation point for throwing of implicit exceptions that are | |
3490 // not handled in the current activation. Fabricates an exception | |
3491 // oop and initiates normal exception dispatching in this | |
3492 // frame. Since we need to preserve callee-saved values (currently | |
3493 // only for C2, but done for C1 as well) we need a callee-saved oop | |
3494 // map and therefore have to make these stubs into RuntimeStubs | |
3495 // rather than BufferBlobs. If the compiler needs all registers to | |
3496 // be preserved between the fault point and the exception handler | |
3497 // then it must assume responsibility for that in | |
3498 // AbstractCompiler::continuation_for_implicit_null_exception or | |
3499 // continuation_for_implicit_division_by_zero_exception. All other | |
3500 // implicit exceptions (e.g., NullPointerException or | |
3501 // AbstractMethodError on entry) are either at call sites or | |
3502 // otherwise assume that stack unwinding will be initiated, so | |
3503 // caller saved registers were assumed volatile in the compiler. | |
3504 address generate_throw_exception(const char* name, | |
3505 address runtime_entry, | |
3451
38fa55e5e792
7055355: JSR 292: crash while throwing WrongMethodTypeException
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2409
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|
3506 Register arg1 = noreg, |
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|
3507 Register arg2 = noreg) { |
0 | 3508 // Information about frame layout at time of blocking runtime call. |
3509 // Note that we only have to preserve callee-saved registers since | |
3510 // the compilers are responsible for supplying a continuation point | |
3511 // if they expect all registers to be preserved. | |
3512 enum layout { | |
3513 rbp_off = frame::arg_reg_save_area_bytes/BytesPerInt, | |
3514 rbp_off2, | |
3515 return_off, | |
3516 return_off2, | |
3517 framesize // inclusive of return address | |
3518 }; | |
3519 | |
3520 int insts_size = 512; | |
3521 int locs_size = 64; | |
3522 | |
3523 CodeBuffer code(name, insts_size, locs_size); | |
3524 OopMapSet* oop_maps = new OopMapSet(); | |
3525 MacroAssembler* masm = new MacroAssembler(&code); | |
3526 | |
3527 address start = __ pc(); | |
3528 | |
3529 // This is an inlined and slightly modified version of call_VM | |
3530 // which has the ability to fetch the return PC out of | |
3531 // thread-local storage and also sets up last_Java_sp slightly | |
3532 // differently than the real call_VM | |
3533 | |
3534 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
3535 | |
3536 assert(is_even(framesize/2), "sp not 16-byte aligned"); | |
3537 | |
3538 // return address and rbp are already in place | |
304 | 3539 __ subptr(rsp, (framesize-4) << LogBytesPerInt); // prolog |
0 | 3540 |
3541 int frame_complete = __ pc() - start; | |
3542 | |
3543 // Set up last_Java_sp and last_Java_fp | |
4895
c742b0b47fe5
7119286: JSR292: SIGSEGV in JNIHandleBlock::release_block(JNIHandleBlock*, Thread*)+0x3c
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4771
diff
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|
3544 address the_pc = __ pc(); |
c742b0b47fe5
7119286: JSR292: SIGSEGV in JNIHandleBlock::release_block(JNIHandleBlock*, Thread*)+0x3c
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4771
diff
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|
3545 __ set_last_Java_frame(rsp, rbp, the_pc); |
c742b0b47fe5
7119286: JSR292: SIGSEGV in JNIHandleBlock::release_block(JNIHandleBlock*, Thread*)+0x3c
roland
parents:
4771
diff
changeset
|
3546 __ andptr(rsp, -(StackAlignmentInBytes)); // Align stack |
0 | 3547 |
3548 // Call runtime | |
3451
38fa55e5e792
7055355: JSR 292: crash while throwing WrongMethodTypeException
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|
3549 if (arg1 != noreg) { |
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3550 assert(arg2 != c_rarg1, "clobbered"); |
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3551 __ movptr(c_rarg1, arg1); |
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3552 } |
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3553 if (arg2 != noreg) { |
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3554 __ movptr(c_rarg2, arg2); |
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3555 } |
304 | 3556 __ movptr(c_rarg0, r15_thread); |
0 | 3557 BLOCK_COMMENT("call runtime_entry"); |
3558 __ call(RuntimeAddress(runtime_entry)); | |
3559 | |
3560 // Generate oop map | |
3561 OopMap* map = new OopMap(framesize, 0); | |
3562 | |
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3563 oop_maps->add_gc_map(the_pc - start, map); |
0 | 3564 |
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3565 __ reset_last_Java_frame(true, true); |
0 | 3566 |
3567 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
3568 | |
3569 // check for pending exceptions | |
3570 #ifdef ASSERT | |
3571 Label L; | |
304 | 3572 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), |
3573 (int32_t) NULL_WORD); | |
0 | 3574 __ jcc(Assembler::notEqual, L); |
3575 __ should_not_reach_here(); | |
3576 __ bind(L); | |
3577 #endif // ASSERT | |
3578 __ jump(RuntimeAddress(StubRoutines::forward_exception_entry())); | |
3579 | |
3580 | |
3581 // codeBlob framesize is in words (not VMRegImpl::slot_size) | |
3582 RuntimeStub* stub = | |
3583 RuntimeStub::new_runtime_stub(name, | |
3584 &code, | |
3585 frame_complete, | |
3586 (framesize >> (LogBytesPerWord - LogBytesPerInt)), | |
3587 oop_maps, false); | |
3588 return stub->entry_point(); | |
3589 } | |
3590 | |
3591 // Initialization | |
3592 void generate_initial() { | |
3593 // Generates all stubs and initializes the entry points | |
3594 | |
3595 // This platform-specific stub is needed by generate_call_stub() | |
304 | 3596 StubRoutines::x86::_mxcsr_std = generate_fp_mask("mxcsr_std", 0x0000000000001F80); |
0 | 3597 |
3598 // entry points that exist in all platforms Note: This is code | |
3599 // that could be shared among different platforms - however the | |
3600 // benefit seems to be smaller than the disadvantage of having a | |
3601 // much more complicated generator structure. See also comment in | |
3602 // stubRoutines.hpp. | |
3603 | |
3604 StubRoutines::_forward_exception_entry = generate_forward_exception(); | |
3605 | |
3606 StubRoutines::_call_stub_entry = | |
3607 generate_call_stub(StubRoutines::_call_stub_return_address); | |
3608 | |
3609 // is referenced by megamorphic call | |
3610 StubRoutines::_catch_exception_entry = generate_catch_exception(); | |
3611 | |
3612 // atomic calls | |
3613 StubRoutines::_atomic_xchg_entry = generate_atomic_xchg(); | |
3614 StubRoutines::_atomic_xchg_ptr_entry = generate_atomic_xchg_ptr(); | |
3615 StubRoutines::_atomic_cmpxchg_entry = generate_atomic_cmpxchg(); | |
3616 StubRoutines::_atomic_cmpxchg_long_entry = generate_atomic_cmpxchg_long(); | |
3617 StubRoutines::_atomic_add_entry = generate_atomic_add(); | |
3618 StubRoutines::_atomic_add_ptr_entry = generate_atomic_add_ptr(); | |
3619 StubRoutines::_fence_entry = generate_orderaccess_fence(); | |
3620 | |
3621 StubRoutines::_handler_for_unsafe_access_entry = | |
3622 generate_handler_for_unsafe_access(); | |
3623 | |
3624 // platform dependent | |
304 | 3625 StubRoutines::x86::_get_previous_fp_entry = generate_get_previous_fp(); |
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3626 StubRoutines::x86::_get_previous_sp_entry = generate_get_previous_sp(); |
304 | 3627 |
3628 StubRoutines::x86::_verify_mxcsr_entry = generate_verify_mxcsr(); | |
3451
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3629 |
4743 | 3630 // Build this early so it's available for the interpreter. |
3631 StubRoutines::_throw_StackOverflowError_entry = | |
3632 generate_throw_exception("StackOverflowError throw_exception", | |
3633 CAST_FROM_FN_PTR(address, | |
3634 SharedRuntime:: | |
3635 throw_StackOverflowError)); | |
0 | 3636 } |
3637 | |
3638 void generate_all() { | |
3639 // Generates all stubs and initializes the entry points | |
3640 | |
3641 // These entry points require SharedInfo::stack0 to be set up in | |
3642 // non-core builds and need to be relocatable, so they each | |
3643 // fabricate a RuntimeStub internally. | |
3644 StubRoutines::_throw_AbstractMethodError_entry = | |
3645 generate_throw_exception("AbstractMethodError throw_exception", | |
3646 CAST_FROM_FN_PTR(address, | |
3647 SharedRuntime:: | |
3937 | 3648 throw_AbstractMethodError)); |
0 | 3649 |
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3650 StubRoutines::_throw_IncompatibleClassChangeError_entry = |
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3651 generate_throw_exception("IncompatibleClassChangeError throw_exception", |
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3652 CAST_FROM_FN_PTR(address, |
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3653 SharedRuntime:: |
3937 | 3654 throw_IncompatibleClassChangeError)); |
0 | 3655 |
3656 StubRoutines::_throw_NullPointerException_at_call_entry = | |
3657 generate_throw_exception("NullPointerException at call throw_exception", | |
3658 CAST_FROM_FN_PTR(address, | |
3659 SharedRuntime:: | |
3937 | 3660 throw_NullPointerException_at_call)); |
0 | 3661 |
3662 // entry points that are platform specific | |
304 | 3663 StubRoutines::x86::_f2i_fixup = generate_f2i_fixup(); |
3664 StubRoutines::x86::_f2l_fixup = generate_f2l_fixup(); | |
3665 StubRoutines::x86::_d2i_fixup = generate_d2i_fixup(); | |
3666 StubRoutines::x86::_d2l_fixup = generate_d2l_fixup(); | |
3667 | |
3668 StubRoutines::x86::_float_sign_mask = generate_fp_mask("float_sign_mask", 0x7FFFFFFF7FFFFFFF); | |
3669 StubRoutines::x86::_float_sign_flip = generate_fp_mask("float_sign_flip", 0x8000000080000000); | |
3670 StubRoutines::x86::_double_sign_mask = generate_fp_mask("double_sign_mask", 0x7FFFFFFFFFFFFFFF); | |
3671 StubRoutines::x86::_double_sign_flip = generate_fp_mask("double_sign_flip", 0x8000000000000000); | |
0 | 3672 |
3673 // support for verify_oop (must happen after universe_init) | |
3674 StubRoutines::_verify_oop_subroutine_entry = generate_verify_oop(); | |
3675 | |
3676 // arraycopy stubs used by compilers | |
3677 generate_arraycopy_stubs(); | |
1108 | 3678 |
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3679 generate_math_stubs(); |
6894 | 3680 |
3681 // don't bother generating these AES intrinsic stubs unless global flag is set | |
3682 if (UseAESIntrinsics) { | |
3683 StubRoutines::x86::_key_shuffle_mask_addr = generate_key_shuffle_mask(); // needed by the others | |
3684 | |
3685 StubRoutines::_aescrypt_encryptBlock = generate_aescrypt_encryptBlock(); | |
3686 StubRoutines::_aescrypt_decryptBlock = generate_aescrypt_decryptBlock(); | |
3687 StubRoutines::_cipherBlockChaining_encryptAESCrypt = generate_cipherBlockChaining_encryptAESCrypt(); | |
3688 StubRoutines::_cipherBlockChaining_decryptAESCrypt = generate_cipherBlockChaining_decryptAESCrypt_Parallel(); | |
3689 } | |
0 | 3690 } |
3691 | |
3692 public: | |
3693 StubGenerator(CodeBuffer* code, bool all) : StubCodeGenerator(code) { | |
3694 if (all) { | |
3695 generate_all(); | |
3696 } else { | |
3697 generate_initial(); | |
3698 } | |
3699 } | |
3700 }; // end class declaration | |
3701 | |
3702 void StubGenerator_generate(CodeBuffer* code, bool all) { | |
3703 StubGenerator g(code, all); | |
3704 } |